WO2017049646A1

WO2017049646A1 - Resource mapping method and apparatus

Info

Publication number: WO2017049646A1
Application number: PCT/CN2015/090847
Authority: WO
Inventors: 刘鹍鹏; 刘建琴
Original assignee: 华为技术有限公司
Priority date: 2015-09-25
Filing date: 2015-09-25
Publication date: 2017-03-30
Also published as: CN107113272A; CN107113272B

Abstract

Embodiments of the present invention provide a resource mapping method, comprising: a base station determines positions of various subcarriers used for carrying reference signals in a physical resource block pair, wherein the physical resource block pair has three subcarriers used for carrying the reference signals, each of the subcarriers code division multiplexes at most four reference signal ports using different OCCs, and the reference signal ports code division multiplexed by the various subcarriers are the same; the base station determines, according to port numbers of the reference signals ports and the subcarriers where the various reference signals are located, OCCs used on the various subcarriers; the base station modulates, according to the various OCCs, the sequence of the reference signals carried by the various subcarriers to obtain a target sequence; and the base station maps the target sequence to resources corresponding to the various subcarriers for transmitting. Embodiments of the present invention further provide a resource mapping apparatus. According to the embodiments of the present invention, mapping of OCC having a length of 4 to a time-frequency resource can be implemented in a scenario where each subcarrier code division multiplexes at most four reference signal ports.

Description

Resource mapping method and device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a resource mapping method and apparatus.

Background technique

In the Long Term Evolution (LTE) technology, when a transmitting end (such as a base station) sends user data to a receiving end (such as a user equipment), it may send a reference signal to a receiving end (such as a user equipment). The receiving end obtains the channel estimation value required for user data demodulation according to the received reference signal, and further demodulates the corresponding user data according to the obtained channel estimation value. In order to ensure the transmission of the reference signal, the transmitting end needs to map the reference signal to the time-frequency resource. When the transmitting end performs resource mapping, it is required to determine the port number of the transmission reference signal, the subcarrier carrying the reference signal, and the orthogonal mask OCC used by each pilot port, and modulate the reference signal according to the above OCC to map to the reference signal. The resource is transmitted on the resource where the subcarrier is located.

In the prior art, only two code division multiplexing (CDM) groups are defined. When the OCC length is 4, the mapping between OCC and time-frequency resources is performed, that is, each sub-carrier can be code-multiplexed by up to four. Reference signal port. If only one CDM group is used, each subcarrier is code-multiplexed with up to four reference signal ports, and the OCC length is four. The prior art does not define the mapping between OCC and time-frequency resources in this scenario.

Summary of the invention

The embodiment of the present invention provides a resource mapping method and device, which can implement mapping of OCC and time-frequency resources of length 4 in a scenario where each sub-carrier is code-multiplexed with four reference signal ports.

A first aspect of the embodiments of the present invention provides a resource mapping method, which may include:

Determining, by the base station, a location of each subcarrier used to carry the reference signal in a pair of physical resource blocks, where three subcarriers in the pair of physical resource blocks are used to carry reference signals, and each of the subcarriers is code-multiplexed into four more. Reference signal ports of different orthogonal mask OCCs, the reference signal ports of each of the subcarriers code division multiplexing are the same;

Determining, by the base station, an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

a sequence of reference signals carried by the base station on each of the subcarriers according to each of the OCCs Performing modulation to obtain a target sequence of reference signals carried on each of the subcarriers;

The base station maps a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.

With reference to the first aspect, in a first possible implementation manner, the base station determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, an OCC used on each subcarrier, including :

Determining, by the base station, that the OCC used by each of the subcarriers is W1, or W2, or W3 or W4, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located;

Where W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Said

Wherein, the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

The W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D, B , A], the W4 = [D, C, B, A], or, [D, C, A, B].

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the base station determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, The OCC used on the carrier includes:

Determining, by the base station, the OCC adopted on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, according to a predetermined rule;

The predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.

With reference to the first aspect to any one of the first possible implementation manners of the first aspect, in a third possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

With reference to the first aspect to any one of the first possible implementation manners of the first aspect, in a fourth possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

Combining the first aspect to any of the first possible implementations of the first aspect, in the fifth possibility In the implementation manner, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to the first aspect to any one of the first possible implementation manners of the first aspect, in a sixth possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to the first aspect to any one of the first possible implementation manners of the first aspect, in a seventh possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to the first aspect to any one of the first possible implementation manners of the first aspect, in an eighth possible implementation, the subcarriers included in all physical resource blocks included in the maximum system bandwidth are The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.

With reference to the fourth possible implementation of the first aspect, to any one of the eighth possible implementation manners of the first aspect, in the ninth possible implementation manner, in each of the four consecutive physical resource block pairs In the two physical resource blocks included, the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10. The reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. The OCC is the same.

With reference to the first aspect to any one of the ninth possible implementation manners of the first aspect, in a tenth possible implementation, the reference signal is a demodulation reference signal DMRS;

The subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;

Determining, by the low frequency to the high frequency, all the subcarrier numbers used by the OCCs on the respective subcarriers are 0 to 11, and the OFDM symbol bits of the DMRS are OFDM symbol bits 5, 6, and 12. 13 symbols.

A second aspect of the embodiments of the present invention provides a resource mapping method, which may include:

The user equipment UE determines a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code-multiplexed to at most 4 Reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

Determining, by the UE, the OCC used on each subcarrier according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The UE detects, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.

With reference to the second aspect, in a first possible implementation manner, the UE determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, an OCC used on each subcarrier, including :

Determining, by the UE, that the OCC used by each of the subcarriers is W1, or W2, or W3 or W4, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located;

Where W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p, 3), D = W (p, 4);

Said

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the UE determines, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, The OCC used on the carrier includes:

Determining, by the UE, the OCC adopted on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, according to a predetermined rule;

With reference to the second aspect to any one of the first possible implementation manners of the second aspect, in a third possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

With reference to the second aspect to any one of the first possible implementation manners of the second aspect, in a fourth possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to the second aspect to any one of the first possible implementation manners of the second aspect, in a fifth possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to the second aspect to any one of the first possible implementation manners of the second aspect, in a sixth possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to the second aspect to any one of the first possible implementation manners of the second aspect, in a seventh possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to the second aspect to any one of the first possible implementation manners of the second aspect, in an eighth possible implementation, the subcarriers included in all physical resource blocks included in the maximum system bandwidth are The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.

With reference to the fourth possible implementation of the second aspect, to any one of the eighth possible implementation manners of the second aspect, in the ninth possible implementation manner, in each of the four consecutive physical resource block pairs In the two physical resource blocks included, the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;

With reference to the second aspect to any one of the ninth possible implementation manners of the second aspect, in a tenth possible implementation, the reference signal is a demodulation reference signal DMRS;

A third aspect of the embodiments of the present invention provides a resource mapping apparatus, which may include:

a determining module, configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code division multiplexed Up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The determining module is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

a modulation module, configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;

And a sending module, configured to map a target sequence of the reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.

With reference to the third aspect, in a first possible implementation manner, the determining module is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;

Wherein said

The W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner, The determination module is specifically used to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, the OCC adopted on each subcarrier according to a predetermined rule;

With reference to any one of the third aspect to the first possible implementation manner of the third aspect, in a third possible implementation manner, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the third aspect to the first possible implementation manner of the third aspect, in a fourth possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the third aspect to the first possible implementation manner of the third aspect, in a fifth possible implementation, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the third aspect to the first possible implementation manner of the third aspect, in a sixth possible implementation, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the third aspect to the first possible implementation manner of the third aspect, in a seventh possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the third aspect to the first possible implementation manner of the third aspect, in an eighth possible implementation, the subcarriers included in all physical resource blocks included in the maximum system bandwidth are included The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.

With reference to the fourth possible implementation of the third aspect, to any one of the eighth possible implementation manners of the third aspect, in the ninth possible implementation manner, in each of the four consecutive physical resource block pairs In the two physical resource blocks included, the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;

With reference to any one of the third aspect to the ninth possible implementation manner of the third aspect, in a tenth possible implementation manner, the reference signal is a demodulation reference signal DMRS;

A fourth aspect of the embodiments of the present invention provides a resource mapping apparatus, which may include:

And a receiving module, configured to detect, according to each of the OCCs, the modulated reference signal sent by the base station received on each of the subcarriers.

With reference to the fourth aspect, in a first possible implementation manner, the determining module is specifically configured to:

Wherein, said W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Wherein said

Wherein, W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D , B, A], the W4 = [D, C, B, A], or, [D, C, A, B].

In conjunction with the first possible implementation of the fourth aspect, in a second possible implementation, the determining module is specifically configured to:

With reference to any one of the fourth aspect to the first possible implementation manner of the fourth aspect, in a third possible implementation manner, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

The n4 to n6 are second objects satisfying the index mod 4=((y+1) mod 4) of the physical resource block. The index of the subcarrier in which the reference signal from the low frequency to the high frequency is located within the resource block pair;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fourth aspect to the first possible implementation manner of the fourth aspect, in a fourth possible implementation, the OCC adopted on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fourth aspect to the first possible implementation manner of the fourth aspect, in a fifth possible implementation, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fourth aspect to the first possible implementation manner of the fourth aspect, in a sixth possible implementation, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

Combining any of the fourth aspect to the first possible implementation of the fourth aspect, in the seventh possibility In the implementation manner, the OCC adopted on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fourth aspect to the first possible implementation manner of the fourth aspect, in an eighth possible implementation manner, the subcarriers included in all physical resource blocks included in the maximum system bandwidth are included The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.

In combination with the fourth possible implementation manner of the fourth aspect, the eighth possible implementation manner of the fourth aspect, in the ninth possible implementation manner, in each of the four consecutive physical resource resource pairs In the two physical resource blocks included, the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCC used on the corresponding subcarriers, and the reference signal of port number 11 is transmitted on the OCC adopted on each subcarrier and its adjacent subcarriers. The reference signal with port number 12 of mode TM8, TM9 and TM10 adopts the same OCC, and the reference signal of port number 13 adopts OCC on each subcarrier and its adjacent subcarriers transmit mode is TM8, TM9 and TM10. The reference signal with port number 14 is the same as the OCC.

With reference to any one of the fourth aspect to the ninth possible implementation manner of the fourth aspect, in a tenth possible implementation manner, the reference signal is a demodulation reference signal DMRS;

A fifth aspect of the embodiments of the present invention provides a base station, which may include: a memory, a processor, and a transmitter, where the memory is connected to the transmitter, and the processor is respectively connected to the memory and the transmitter ;

The program stores a set of program codes;

The transmitter and the processor are configured to invoke program code stored in the memory, and perform the following operations:

The processor is configured to determine a location of each subcarrier used to carry a reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier code points Multipleiating up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The processor is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The processor is further configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;

The transmitter is configured to map a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.

With reference to the fifth aspect, in a first possible implementation manner, the processor is specifically configured to:

Said

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the processor is specifically configured to:

With reference to any one of the fifth aspect to the first possible implementation manner of the fifth aspect, in a third possible implementation manner, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fifth aspect to the first possible implementation manner of the fifth aspect, in a fourth possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fifth aspect to the first possible implementation manner of the fifth aspect, in a fifth possible implementation, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

The n7 to n9 are third objects satisfying the index mod 4=((y+2) mod 4) of the physical resource block. The index of the subcarrier in which the reference signal from the low frequency to the high frequency is located within the resource block pair;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fifth aspect to the first possible implementation manner of the fifth aspect, in a sixth possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fifth aspect to the first possible implementation manner of the fifth aspect, in a seventh possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are the first physical resources that satisfy the index of the physical resource block index mod 4=y The index of the subcarrier in which the reference signal is sorted from the low frequency to the high frequency within the source block pair;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the fifth aspect to the first possible implementation manner of the fifth aspect, in an eighth possible implementation manner, the subcarriers included in all physical resource blocks included in the maximum system bandwidth are included The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.

In combination with the fourth possible implementation manner of the fifth aspect, the eighth possible implementation manner of the fifth aspect, in the ninth possible implementation manner, in each of the four consecutive physical resource resource pairs In the two physical resource blocks included, the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;

With reference to any one of the fifth aspect to the ninth possible implementation manner of the fifth aspect, in a tenth possible implementation manner, the reference signal is a demodulation reference signal DMRS;

A sixth aspect of the embodiments of the present invention provides a user equipment, which may include:

a memory, a processor and a receiver, the memory being coupled to the receiver, the processor being coupled to the memory and the receiver, respectively;

The program stores a set of program codes;

The receiver and the processor are configured to invoke program code stored in the memory, and perform the following operations:

The receiver is configured to detect, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.

In conjunction with the sixth aspect, in a first possible implementation, the processor is specifically configured to:

Said

In conjunction with the first possible implementation of the sixth aspect, in a second possible implementation, the processor is specifically configured to:

With reference to any one of the sixth aspect to the first possible implementation manner of the sixth aspect, in a third possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the sixth aspect to the first possible implementation manner of the sixth aspect, in a fourth possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the sixth aspect to the first possible implementation manner of the sixth aspect, in a fifth possible implementation, the OCC used on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

Combining any of the sixth aspect to the first possible implementation of the sixth aspect, in the sixth possibility In the implementation manner, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the sixth aspect to the first possible implementation manner of the sixth aspect, in a seventh possible implementation, the OCC used on each subcarrier includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

With reference to any one of the sixth aspect to the first possible implementation manner of the sixth aspect, in an eighth possible implementation, the subcarriers included in all physical resource blocks included in the maximum system bandwidth are The OCC used for every two adjacent subcarriers does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, and the W2 and the W2 is adjacent, the W3 is adjacent to the W3, and the state in which the W4 and the W4 are adjacent.

In combination with the fourth possible implementation manner of the sixth aspect, the eighth possible implementation manner of the sixth aspect, in the ninth possible implementation manner, in each of the four consecutive physical resource resource pairs In the two physical resource blocks included, the reference signals used by the respective reference signals on the respective subcarriers and the reference signals of the same port numbers whose transmission modes are TM8, TM9, and TM10 are the same as the OCCs used on the corresponding subcarriers;

With reference to any one of the sixth aspect to the ninth possible implementation manner of the sixth aspect, in a tenth possible implementation manner, the reference signal is a demodulation reference signal DMRS;

In the embodiment of the present invention, the base station may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port is adopted. Different OCCs, the reference signal ports of each subcarrier code division multiplexing are the same In the scenario, the length of the OCC used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located, and the sequence of reference signals carried on each subcarrier can be performed according to each OCC. The modulation is performed by mapping the sequence of the reference signals carried on the respective subcarriers to the resources on which the subcarriers are located, and performing the transmission in a scenario in which each of the subcarriers is code-multiplexed with four reference signal ports. A mapping of 4 OCCs to time-frequency resources.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a schematic flowchart diagram of a first embodiment of a resource mapping method according to an embodiment of the present disclosure;

2 is a schematic diagram of an OCC mapping result of a resource mapping method according to an embodiment of the present invention;

3 is a schematic diagram of another OCC mapping result of the resource mapping method provided by the embodiment of the present invention;

4 is a schematic diagram of another OCC mapping result of the resource mapping method provided by the embodiment of the present invention;

FIG. 5 is a schematic diagram of another OCC mapping result of the resource mapping method according to the embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of another OCC mapping result of the resource mapping method according to the embodiment of the present invention; FIG.

FIG. 7 is a schematic diagram of another OCC mapping result of the resource mapping method according to the embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of another OCC mapping result of a resource mapping method according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic flowchart diagram of a second embodiment of a resource mapping method according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a first embodiment of a resource mapping apparatus according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a second embodiment of a resource mapping apparatus according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of an embodiment of a base station according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of an embodiment of a user equipment according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In a specific implementation, the executor of the resource mapping method in the embodiment of the present invention may be a base station, and the resource mapping device described in the embodiment of the present invention may be a base station, and the base station is taken as an example to provide an embodiment of the present invention. The resource mapping method and device are specifically described.

FIG. 1 is a schematic flowchart diagram of a first embodiment of a resource mapping method according to an embodiment of the present invention. The method described in the embodiments of the present invention includes the following steps:

S101. The base station determines a location of each subcarrier used to carry the reference signal in a pair of physical resource blocks.

In some possible implementations, the base station may first determine the location of each subcarrier used to carry the reference signal in the pair of physical resource blocks. Each of the foregoing physical resource block pairs has three subcarriers for carrying reference signals, and the base station may first determine the location of the three subcarriers of the application bearer reference channel in its corresponding physical resource block pair, and further determine the subcarriers. The resource is located to map the sequence of reference signals corresponding to each subcarrier to the corresponding resource. In a specific implementation, each of the foregoing subcarriers may be code-multiplexed into up to four reference signal ports that use different orthogonal mask OCCs, and the reference signal ports of each of the subcarrier code division multiplexing are the same. Wherein, the length of the above OCC is 4. That is, in a specific implementation, each subcarrier can be code-multiplexed with one, two, three, or four reference signal ports that use different OCCs, which can be determined according to actual application scenarios, and is not limited herein.

S102. The base station determines an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located.

In some feasible implementation manners, the OCC adopted on each subcarrier determined by the base station may be W1, or W2, or W3 or W4, that is, the OCC adopted on each subcarrier may be in W1, W2, W3, and W4. Any one of the above, wherein W1, W2, W3, and W4 are a codeword sequence of length 4. Specifically, the embodiment of the present invention can determine the OCC adopted by each subcarrier through a 4-dimensional orthogonal matrix W. W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4).

Among them, the above

The above W(p, m) represents a numerical value corresponding to the p-th row and the m-th column of the orthogonal matrix W, and the p corresponds to the port number of the reference signal, and the above m is 1 to 4. For example, if p=1, the orthogonal matrix W can be determined. The number corresponding to the first row and the first column is 1, that is, A=1; the number corresponding to the first row and the second column of the orthogonal matrix W is 1, that is, B=1; the first row and the third of the orthogonal matrix W The number corresponding to the column is 1, that is, C=1; the number corresponding to the first row and the fourth column of the orthogonal matrix W is 1, that is, D=1. In a specific implementation, the above p corresponds to the port number of the reference signal, for example, when the subcarrier code is multiplexed into four reference signal ports using different OCCs, including a reference signal port with a reference signal port number of 7 (set to port 7) Reference signal port with reference port number 8 (set to port 8), reference signal port with reference signal port number 11 (set to port 11), and reference signal port with reference signal port number 13 (set to port 13) . When p=1, it can correspond to port 7, when p=2, it can correspond to port8, when p=3, it can correspond to port 11), when p=4, it can correspond to port 13.

In a specific implementation, the base station may determine the OCC used by each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, where the OCC used by each of the subcarriers may be W1, or W2, or W3 or W4. That is, each subcarrier may adopt one OCC, and specifically may be any one of W1 or W2 or W3 or W4. Wherein, the above W1=[A, B, C, D], W2=[B, A, D, C], W3=[C, D, A, B] or [C, D, B, A], W4 =[D,C,B,A], or, [D, C, A, B].

In a specific implementation, when the base station determines the OCC used on each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, the base station needs to determine according to a predetermined rule. The foregoing predetermined rule may specifically be A, B, C, and D that appear in the Orthogonal Frequency Division Multiplexing (OFDM) symbol where each reference signal in each of the four consecutive physical resource block pairs is located. The number is the same. That is, when determining the OCC used by the subcarriers for carrying the reference signal included in each physical resource block pair, it needs to be included in the OFDM symbol in which the reference signals carried by the respective subcarriers in the four consecutive physical resource block pairs are located. The number of A, B, C, and D is the same, and the order of appearance of A, B, C, and D can be determined according to a specific scenario. The following will be combined with Figure 2 The OCC adopted on each subcarrier described in the embodiment of the present invention is specifically described in the different implementation manners corresponding to FIG. 8.

In the embodiment corresponding to the first scenario, the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n3, and n8 is W3; and the OCC used on the subcarriers n5, n10, and n12 is W4; The OCC used on the subcarriers n4, n6, and n11 is W1; the OCC used on the subcarriers n2, n7, and n9 is W2. The above n1 to n3 are indices of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod4=y of the physical resource block. The above n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block. The above n7 to n9 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are arranged in the third physical resource block pair satisfying the index mod 4=((y+2) mod 4) of the physical resource block. N10 to n12 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the fourth physical resource block pair satisfying the index mod 4=((y+3) mod 4) of the physical resource block; Let y be 0 or 1 or 2 or 3. In the embodiment of the present invention, the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

As shown in FIG. 2, assuming that y is 0, the first physical resource block pair is 0 for the physical resource block pair with index mod 4=0; the second physical resource block pair is index mod 4=((y+1) mod 4)= 1 physical resource block pair 1; third physical resource block pair is index mod 4=((y+2) mod 4)=2 physical resource block pair 2; fourth physical resource block pair is index mod 4=(( y+3) mod 4) = 3 physical resource block pair 3. The three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency. N4 to n6, the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high. The frequency ordering can be from n10 to n12.

Suppose W1=[A,B,C,D], W2=[B,A,D,C], W3=[C,D,A,B],W4=[D,C,B,A], then The OCC used on the subcarriers n1, n3, and n8 is W3, the OCC used on the subcarriers n5, n10, and n12 is W4, and the OCC used on the subcarriers n4, n6, and n11 is W1, and subcarriers n2, n7, and n9 are used. The results obtained using the OCC for W2 are shown in Fig. 2.

In a specific implementation, the first, second, and third in the first physical resource block pair, the second physical resource block pair, the third physical resource block pair, and the fourth physical resource block pair described in the embodiment of the present invention The fourth is only a physical resource block pair used to mark different indexes, not a physical tag of a physical resource block pair. For example, the physical resource block pair of the index class index index mod 4=y is marked as the first physical resource block pair, and the second physical resource block pair, the third physical resource block pair, and the fourth physical resource block pair are similar. , will not repeat them below.

It should be noted that, in the implementation manner of the scenario described in FIG. 2, among the two physical resource blocks included in each consecutive four physical resource block pairs, the OCC and the transmission adopted by each reference signal on each subcarrier are used. The reference signals of the same port number in the mode of TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers. The foregoing transmission modes TM8, TM9, and TM10 are transmission modes defined in LTE, and are not described herein.

Among the other two physical resource blocks included in each consecutive 4 physical resource block pairs, the reference signals with port numbers 7 and 8 adopt the same OCC on each subcarrier and the same port with the transmission mode of TM8, TM9 and TM10. The reference signal of the number is the same as the OCC used on the corresponding subcarriers, and the reference number of the port number 11 is adopted on each subcarrier. The port number of the OCC and its adjacent subcarriers is TM8, TM9 and TM10. The reference signal of 12 uses the same OCC, the reference signal of port number 13 is OCC adopted on each subcarrier and the OCC of the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. the same.

In the embodiment corresponding to the second scenario, the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W3; and the OCC used on the subcarriers n2, n6, and n10 is W1; The OCC used on the subcarriers n3, n7, and n11 is W2; the OCC used on the subcarriers n4, n8, and n12 is W4. The above n1 to n3 are indices of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod4=y of the physical resource block. The above n4 to n6 are the first of the index mod 4=((y+1) mod 4) satisfying the physical resource block. The index of the subcarrier in which the reference signal from the low frequency to the high frequency is located within the pair of physical resource blocks. The above n7 to n9 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are arranged in the third physical resource block pair satisfying the index mod 4=((y+2) mod 4) of the physical resource block. N10 to n12 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair satisfying the index mod 4=((y+3) mod 4) of the physical resource block. Wherein, the above y is 0 or 1 or 2 or 3. In the embodiment of the present invention, the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

As shown in FIG. 3, assuming that y is 0, the first physical resource block pair is 0 for the physical resource block pair with index mod 4=0; the second physical resource block pair is index mod 4=((y+1) mod 4)= 1 physical resource block pair 1; third physical resource block pair is index mod 4=((y+2) mod 4)=2 physical resource block pair 2; fourth physical resource block pair is index mod 4=(( y+3) mod 4) = 3 physical resource block pair 3. The three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency. N4 to n6, the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high. The frequency ordering can be from n10 to n12.

Suppose W1=[A,B,C,D], W2=[B,A,D,C], W3=[C,D,A,B],W4=[D,C,B,A], then The OCC used on the subcarriers n1, n5, and n9 is W3; the OCC used on the subcarriers n2, n6, and n10 is W1; the OCC used on the subcarriers n3, n7, and n11 is W2; and the subcarriers n4, n8, and n12 are used. The results obtained using the OCC for W4 are shown in Fig. 3.

In an embodiment corresponding to the third scenario, the OCC used on each of the subcarriers may be that the OCC used on the subcarriers n1, n3, and n5 is W3; and the OCC used on the subcarriers n2, n4, and n6 is W2; The OCC used on the subcarriers n7, n9, and n11 is W1; the OCC used on the subcarriers n8, n10, and n12 is W4. The above n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block. The above n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block. The above n7 to n9 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are arranged in the third physical resource block pair satisfying the index mod 4=((y+2) mod 4) of the physical resource block. N10 to n12 are satisfied The index of the physical resource block index mod 4=((y+3) mod 4) is the index of the subcarrier in which the reference signal is sorted from the low frequency to the high frequency. Wherein, the above y is 0 or 1 or 2 or 3. In the embodiment of the present invention, the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

As shown in FIG. 4, assuming that y is 0, the first physical resource block pair is 0 for the physical resource block pair with index mod 4=0; the second physical resource block pair is index mod 4=((y+1) mod 4)= 1 physical resource block pair 1; third physical resource block pair is index mod 4=((y+2) mod 4)=2 physical resource block pair 2; fourth physical resource block pair is index mod 4=(( y+3) mod 4) = 3 physical resource block pair 3. The three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency. N4 to n6, the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high. The frequency ordering can be from n10 to n12.

Suppose W1=[A,B,C,D], W2=[B,A,D,C], W3=[C,D,A,B],W4=[D,C,B,A], then The OCC used on the subcarriers n1, n3, and n5 is W3; the OCC used on the subcarriers n2, n4, and n6 is W2; the OCC used on the subcarriers n7, n9, and n11 is W1; and the subcarriers n8, n10, and n12 are used. The results obtained using the OCC for W4 are shown in Fig. 4.

It should be noted that, in the implementation manner of the scenario described in FIG. 4, among the two physical resource blocks included in each consecutive four physical resource block pairs, the OCC and the transmission adopted by each reference signal on each subcarrier are used. The reference signals of the same port number in the mode of TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers. The foregoing transmission modes TM8, TM9, and TM10 are transmission modes defined in LTE, and are not described herein.

Among the other two physical resource blocks included in each consecutive 4 physical resource block pairs, the reference signals with port numbers 7 and 8 adopt the same OCC on each subcarrier and the same port with the transmission mode of TM8, TM9 and TM10. The reference signal of the number is the same as the OCC used on the corresponding subcarriers, and the reference number of the port number 11 is adopted on each subcarrier. The port number of the OCC and its adjacent subcarriers is TM8, TM9 and TM10. The reference signal of 12 uses the same OCC, port The reference signal numbered 13 is the same as the OCC used for the reference signal of the port number 14 of the TM8, TM9, and TM10 transmission modes on the adjacent subcarriers.

In the embodiment corresponding to the fourth scenario, the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W1; and the OCC used on the subcarriers n2, n6, and n10 is W2; The OCC used on the subcarriers n3, n7, and n11 is W3; the OCC used on the subcarriers n4, n8, and n12 is W4. The above n1 to n3 are indices of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod4=y of the physical resource block. The above n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block. The above n7 to n9 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are arranged in the third physical resource block pair satisfying the index mod 4=((y+2) mod 4) of the physical resource block. N10 to n12 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair satisfying the index mod 4=((y+3) mod 4) of the physical resource block. Wherein, the above y is 0 or 1 or 2 or 3. In the embodiment of the present invention, the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

As shown in FIG. 5, assuming that y is 0, the physical resource block pair of the first physical resource block pair is index mod 4=0, and the second physical resource block pair is index mod 4=((y+1) mod 4)= 1 physical resource block pair 1; third physical resource block pair is index mod 4=((y+2) mod 4)=2 physical resource block pair 2; fourth physical resource block pair is index mod 4=(( y+3) mod 4) = 3 physical resource block pair 3. The three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency. N4 to n6, the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high. The frequency ordering can be from n10 to n12.

Suppose W1=[A,B,C,D], W2=[B,A,D,C], W3=[C,D,A,B],W4=[D,C,B,A], then The OCC used on the subcarriers n1, n5, and n9 is W1; the OCC used on the subcarriers n2, n6, and n10 is W2; the OCC used on the subcarriers n3, n7, and n11 is W3; and the subcarriers n4, n8, and n12 are used. The results obtained using OCC for W4 are shown in Fig. 5.

It should be noted that, in the implementation manner corresponding to the scenario, among the subcarriers included in all physical resource blocks included in the largest system, the OCC adopted by each two adjacent subcarriers does not include W1 and W3 phases. Adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, W2 and W2 are adjacent, W3 and W3 are adjacent, and W4 and W4 are adjacent. That is, in the scenario corresponding to FIG. 5 above, the OCC adopted for every two adjacent subcarriers will never have W1 and W3 adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent. W3 and W3 are adjacent to each other, and W4 and W4 are adjacent to each other, thereby maintaining power balance.

In the embodiment corresponding to the fifth scenario, the OCC used on each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W3; and the OCC used on the subcarriers n2, n6, and n10 is W2; The OCC used on the subcarriers n3, n7, and n11 is W1; the OCC used on the subcarriers n4, n8, and n12 is W4. The above n1 to n3 are indices of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod4=y of the physical resource block. The above n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block. The above n7 to n9 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are arranged in the third physical resource block pair satisfying the index mod 4=((y+2) mod 4) of the physical resource block. N10 to n12 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair satisfying the index mod 4=((y+3) mod 4) of the physical resource block. Wherein, the above y is 0 or 1 or 2 or 3. In the embodiment of the present invention, the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

As shown in FIG. 6, assuming that y is 0, the first physical resource block pair is 0 for the physical resource block pair with index mod 4=0; the second physical resource block pair is index mod 4=((y+1) mod 4)= 1 physical resource block pair 1; third physical resource block pair is index mod 4=((y+2) mod 4)=2 physical resource block pair 2; fourth physical resource block pair is index mod 4=(( y+3) mod 4) = 3 physical resource block pair 3. The three subcarriers used for carrying the reference signal in the physical resource block pair may be sequenced from low frequency to high frequency from n1 to n3, and the three subcarriers used in the physical resource block pair 1 for carrying the reference signal may be ordered from low frequency to high frequency. N4 to n6, the three subcarriers used for carrying the reference signal in the physical resource block pair 2 may be n7 to n9 from low frequency to high frequency, and the three subcarriers used in the physical resource block pair 3 for carrying the reference signal are from low frequency to high. The frequency ordering can be from n10 to n12.

Suppose W1=[A,B,C,D], W2=[B,A,D,C], W3=[C,D,A,B],W4=[D,C,B,A], then The OCC used on the subcarriers n1, n5, and n9 is W3; the OCC used on the subcarriers n2, n6, and n10 is W2; the OCC used on the subcarriers n3, n7, and n11 is W1; and the subcarriers n4, n8, and n12 are used. The results obtained using OCC for W4 are shown in Fig. 6.

It should be noted that, in the implementation manner corresponding to the scenario, among the subcarriers included in all physical resource blocks included in the largest system, the OCC adopted by each two adjacent subcarriers does not include W1 and W3 phases. Adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, W2 and W2 are adjacent, W3 and W3 are adjacent, and W4 and W4 are adjacent. That is, in the scenario corresponding to FIG. 6 above, the OCC adopted for every two adjacent subcarriers is always adjacent to W1 and W3, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent. W3 and W3 are adjacent to each other, and W4 and W4 are adjacent to each other, thereby maintaining power balance.

It should be noted that, in the embodiments corresponding to the scenarios described in FIG. 2 to FIG. 6 , the reference signals described in the respective implementation manners are Demodulation Reference Signals (DMRSs). The subcarriers used to carry the reference signal in each physical resource block are subcarriers 1, 6, and 11, and all subcarrier numbers used when determining the OCC used on each subcarrier are 0 to 11 from low frequency to high frequency. The 5th, 6th, 12th, and 13th symbols of the OFDM symbol bit where the DMRS is located.

In some possible implementations, the OCC employed on each subcarrier may also be determined according to Equation 1. The OCC adopted for each subcarrier determined according to the above formula 1 is as shown in FIG.

Among them, the above formula 1 is:

among them,

m'=0,1,2

Table 1 shows the OCC used by each antenna port (or reference signal port):

Table 1

Among them, the above

Is the number of physical resource blocks (PRBs) included in the maximum system bandwidth, and n _PRB is the index of the PRB pair (ie, the pair of physical resource blocks) sorted from the low frequency to the high frequency according to the maximum system bandwidth, k is a child. Carrier index, l is an OFDM symbol index, r is a sequence of reference signals,

Is an element in the OCC sequence,

Reference signal representing port p is a sequence in which the subcarrier number is k, the OFDM number is l, and the OCC code is modulated, and w _p (l') is an element of the OCC code.

In some possible implementations, the OCC employed on each subcarrier may also be determined according to Equation 2. The OCC adopted for each subcarrier determined according to the above formula 2 is as shown in FIG.

Where the above formula 2 is:

among them,

m'=0,1,2

Table 2 shows the OCC used by each antenna port (or reference signal port):

Table 2

Among them, the above

Is an element in the OCC sequence,

The reference signal representing the port p is a sequence in which the subcarrier number is k, the OFDM number is l, and the OCC code is modulated, and w _p (l') is an element of the OCC code.

S103. The base station modulates a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers.

S104. The base station maps a target sequence of reference signals carried by each of the subcarriers to a resource where each of the subcarriers is located.

In some feasible implementation manners, after the base station determines the OCC adopted on each subcarrier, the sequence of the reference signals carried on each subcarrier may be modulated according to each OCC to obtain a reference signal carried on each subcarrier. The sequence of goals. Further, the base station may map the target sequence of the reference signals carried by the modulated subcarriers to the resources where the subcarriers are located.

FIG. 9 is a schematic flowchart diagram of a second embodiment of a resource mapping method according to an embodiment of the present invention. The method described in the embodiments of the present invention includes the following steps:

S201. The user equipment UE determines a location of each subcarrier used to carry the reference signal in a physical resource block pair.

In some feasible implementation manners, a user equipment (User Equipment, UE) may first determine a location of each subcarrier used to carry a reference signal in a physical resource block pair. Each of the foregoing physical resource block pairs has three subcarriers for carrying the reference signal, and the UE may first determine the location of the three subcarriers of the application bearer reference channel in the corresponding physical resource block pair, and further determine the subcarrier. The resource is located to map the sequence of reference signals corresponding to each subcarrier to the corresponding resource. In a specific implementation, each of the foregoing subcarriers may be code-multiplexed into up to four reference signal ports that use different orthogonal mask OCCs, and the reference signal ports of each of the subcarrier code division multiplexing are the same. Wherein, the length of the above OCC is 4. That is, in a specific implementation, each subcarrier can be code-multiplexed with one, two, three, or four reference signal ports that use different OCCs, which can be determined according to actual application scenarios, and is not limited herein.

S202. The UE determines an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located.

In some feasible implementation manners, the OCC adopted on each subcarrier determined by the UE may be W1, or W2, or W3 or W4, that is, the OCC adopted on each subcarrier may be in W1, W2, W3, and W4. Any one of the above, wherein W1, W2, W3, and W4 are a codeword sequence of length 4. Specifically, the embodiment of the present invention can determine the OCC adopted by each subcarrier through a 4-dimensional orthogonal matrix W. W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4).

Among them, the above

The above W(p, m) represents a numerical value corresponding to the p-th row and the m-th column of the orthogonal matrix W, and the p corresponds to the port number of the reference signal, and the above m is 1 to 4. For example, if p=1, it can be determined that the number corresponding to the first row and the first column of the orthogonal matrix W is 1, that is, A=1; the number corresponding to the first row and the second column of the orthogonal matrix W is 1, that is, B=1; the number corresponding to the first row and the third column of the orthogonal matrix W is 1, that is, C=1; the number corresponding to the first row and the fourth column of the orthogonal matrix W is 1, that is, D=1. In a specific implementation, the above p corresponds to the port number of the reference signal, for example, when the subcarrier code is multiplexed into four reference signal ports using different OCCs, including a reference signal port with a reference signal port number of 7 (set to port 7) Reference signal port with reference port number 8 (set to port 8), reference signal port with reference signal port number 11 (set to port 11), and reference signal port with reference signal port number 13 (set to port 13) . When p=1, it can correspond to port 7, when p=2, it can correspond to port8, when p=3, it can correspond to port 11), when p=4, it can correspond to port 13.

In a specific implementation, the UE may determine the OCC used by each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, where the OCC of each subcarrier may be W1, or W2, or W3 or W4. That is, each subcarrier may adopt one OCC, and specifically may be any one of W1 or W2 or W3 or W4. Wherein, the above W1=[A, B, C, D], W2=[B, A, D, C], W3=[C, D, A, B] or [C, D, B, A], W4 =[D,C,B,A], or, [D, C, A, B].

In a specific implementation, when the UE determines the OCC used on each subcarrier according to the port number of the reference signal port and the subcarrier where each reference signal is located, the UE needs to determine according to a predetermined rule. The foregoing predetermined rule may be specifically to ensure that the number of A, B, C, and D appearing in the OFDM symbol where each reference signal is located in the four consecutive physical resource block pairs is the same. That is, determine each physical resource When the OCC used by the subcarriers for carrying the reference signal included in the pair of bits needs to be included in the OFDM symbols in which the reference signals carried by the respective subcarriers in the four consecutive physical resource block pairs are located, A, B, and C, The number of D is the same, and the order of appearance of A, B, C, and D can be determined according to a specific scenario. The OCC adopted on each subcarrier when performing resource mapping on the UE side described in the embodiment of the present invention will be specifically described below in conjunction with the different implementations of FIG. 2 to FIG.

Suppose W1=[A,B,C,D], W2=[B,A,D,C], W3=[C,D,A,B],W4=[D,C,B,A], then The OCC used on subcarriers n1, n3, and n8 is W3, and subcarriers n5, n10, and n12 The OCC used in the above is W4, the OCC used on the subcarriers n4, n6, and n11 is W1, and the result obtained by using the OCC on the subcarriers n2, n7, and n9 as W2 is as shown in FIG. 2.

In the embodiment corresponding to the second scenario, the OCC used in each of the subcarriers may be that the OCC used on the subcarriers n1, n5, and n9 is W3; and the OCC used on the subcarriers n2, n6, and n10 is W1; The OCC used on the subcarriers n3, n7, and n11 is W2; the OCC used on the subcarriers n4, n8, and n12 is W4. Wherein, the above n1 to n3 are indexes index mod satisfying the physical resource block. The first physical resource block pair of 4=y is indexed by the subcarrier in which the reference signal ordered from the low frequency to the high frequency is located. The above n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block. The above n7 to n9 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are arranged in the third physical resource block pair satisfying the index mod 4=((y+2) mod 4) of the physical resource block. N10 to n12 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair satisfying the index mod 4=((y+3) mod 4) of the physical resource block. Wherein, the above y is 0 or 1 or 2 or 3. In the embodiment of the present invention, the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

In an embodiment corresponding to the third scenario, the OCC used on each of the subcarriers may be that the OCC used on the subcarriers n1, n3, and n5 is W3; and the OCC used on the subcarriers n2, n4, and n6 is W2; The OCC used on the subcarriers n7, n9, and n11 is W1; the OCC used on the subcarriers n8, n10, and n12 is W4. The above n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block. The above n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block. Above N7 to n9 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are sorted in the third physical resource block pair satisfying the index mod 4=((y+2) mod 4) of the physical resource block. N10 to n12 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair satisfying the index mod 4=((y+3) mod 4) of the physical resource block. Wherein, the above y is 0 or 1 or 2 or 3. In the embodiment of the present invention, the index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.

It should be noted that, in the implementation corresponding to the scenario, all the physics included in the largest system Among the subcarriers included in the resource block, the OCC adopted by every two adjacent subcarriers does not include W1 and W3 adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent, W3 Adjacent to W3, the state adjacent to W4 and W4. That is, in the scenario corresponding to FIG. 5 above, the OCC adopted for every two adjacent subcarriers will never have W1 and W3 adjacent, W2 and W4 are adjacent, W1 and W1 are adjacent, and W2 and W2 are adjacent. W3 and W3 are adjacent to each other, and W4 and W4 are adjacent to each other, thereby maintaining power balance.

Suppose W1=[A,B,C,D], W2=[B,A,D,C], W3=[C,D,A,B],W4=[D, C, B, A], the OCC used on the subcarriers n1, n5, and n9 is W3; the OCC used on the subcarriers n2, n6, and n10 is W2; and the OCC used on the subcarriers n3, n7, and n11 is W1; The result obtained by using the OCC of subcarriers n4, n8, and n12 as W4 is as shown in FIG. 6.

It should be noted that, in the embodiments corresponding to the scenarios described in FIG. 2 to FIG. 6 , the reference signals described in the respective implementation manners are Demodulation Reference Signals (DMRSs). The subcarriers used to carry the reference signal in each physical resource block are subcarriers 1, 6, and 11, and all subcarrier numbers used when determining the OCC used on each subcarrier are 0 to 11 from low frequency to high frequency. The Orthogonal Frequency Division Multiplexing (OFDM) symbol bits of the DMRS are located at the 5th, 6th, 12th, and 13th symbols.

Among them, the above formula 1 is:

among them,

m'=0,1,2

Table 1 shows the OCC used by each antenna port (or reference signal port):

Table 1

Among them, the above

Is an element in the OCC sequence,

Where the above formula 2 is:

among them,

m'=0,1,2

Table 2 shows the OCC used by each antenna port (or reference signal port):

Table 2

Among them, the above

Is an element in the OCC sequence,

S203. The UE detects, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.

In some feasible implementation manners, after the user equipment determines the OCC adopted on each subcarrier, the base station modulated reference signal sent by the base station received on each subcarrier may be detected according to each OCC, and the corresponding reference signal is obtained. data. .

In the embodiment of the present invention, the user equipment may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port In a scenario where the reference signal ports of the subcarriers are coded and multiplexed in different scenarios, the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located. And, according to each OCC, the modulated reference signal received on each subcarrier is detected to obtain corresponding user data, which is implemented in each A mapping of OCC and time-frequency resources of length 4 is performed in a scenario in which the subcarriers are code-multiplexed with four reference signal ports.

FIG. 10 is a schematic structural diagram of a first embodiment of a resource mapping apparatus according to an embodiment of the present invention. The resource mapping device described in the embodiment of the present invention may be specifically a base station, which may include: a determining module 10, a modulating module 20, and a sending module 30;

a determining module 10, configured to determine a location of each subcarrier used to carry the reference signal in a pair of physical resource blocks, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes is divided With up to four reference signal ports using different orthogonal mask OCCs, the reference signal ports of each of the subcarrier code division multiplexing are the same.

The determining module 10 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4.

The modulating module 20 is configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers.

The sending module 30 is configured to map a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.

In some possible implementations, the determining module 10 is specifically configured to:

Wherein said

In some possible implementation manners, the OCC adopted on each subcarrier includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

In some possible implementations, among the subcarriers included in all physical resource blocks included in the maximum system bandwidth, an OCC adopted by every two adjacent subcarriers does not include the W1 and the W3. Adjacent, the W2 and the W4 are adjacent, the W1 is adjacent to the W1, the W2 is adjacent to the W2, the W3 is adjacent to the W3, and the W4 and the W4 are adjacent. Adjacent state.

In some feasible implementation manners, in each of the two physical resource blocks included in each of the four consecutive physical resource block pairs, each reference signal adopts an OCC and a transmission mode of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCC used on the corresponding subcarriers;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10. The reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. The same OCC

In some possible implementations, the reference signal is a demodulation reference signal DMRS;

In a specific implementation, the foregoing resource mapping apparatus may perform the implementation manners described in the foregoing steps in the first embodiment of the resource mapping method provided by the foregoing embodiment of the present invention by using the respective modules. For details, refer to the steps described in the foregoing steps in the foregoing embodiments. The implementation method will not be described here.

FIG. 11 is a schematic structural diagram of a second embodiment of a resource mapping apparatus according to an embodiment of the present invention. The resource mapping device described in the embodiment of the present invention may be specifically the UE described in the embodiment of the present invention, which may include:

a determining module 50, configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes is divided With up to four reference signal ports using different orthogonal mask OCCs, the reference signal ports of each of the subcarrier code division multiplexing are the same.

The determining module 50 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, and a length of the OCC Is 4.

The receiving module 60 is configured to detect, according to each of the OCCs, the modulated reference signal sent by the base station received on each of the subcarriers.

In some possible implementations, the determining module 50 is specifically configured to:

Wherein said

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

In a specific implementation, the resource mapping device may perform the implementations described in the foregoing steps in the second embodiment of the resource mapping method provided by the foregoing embodiment of the present invention by using the respective modules. For details, refer to the steps described in the foregoing steps in the foregoing embodiments. The implementation method will not be described here.

In the embodiment of the present invention, the base station may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port is adopted. In a scenario where the reference signal ports of the sub-carrier code division multiplexing are the same in different OCCs, the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located. Further, according to each OCC, a sequence of reference signals carried on each subcarrier is modulated, and a sequence of reference signals carried on each subcarrier is modulated onto a resource where each subcarrier is located for transmission, thereby realizing The mapping of the OCC with the time-frequency resource of length 4 is performed in the scenario where the sub-carriers are code-multiplexed with the four reference signal ports.

In the embodiment of the present invention, the user equipment may use three subcarriers for carrying reference signals in each physical resource block pair, and the reference signal port of each subcarrier code division multiplexing is less than or equal to four, and each reference signal port In a scenario where the reference signal ports of the subcarriers are coded and multiplexed in different scenarios, the OCC of length 4 used on each subcarrier is determined according to the port number of each reference signal port and the subcarrier where each reference signal is located. And, according to each OCC, the modulated reference signal received on each subcarrier is detected to obtain corresponding user data, and the length is 4 in a scenario where each subcarrier is code-multiplexed with four reference signal ports at most. Mapping of OCC and time-frequency resources.

FIG. 12 is a schematic structural diagram of an embodiment of a base station according to an embodiment of the present invention. The base station described in the embodiment of the present invention includes: a memory 1000, a processor 2000, and a transmitter 3000. The memory 1000 is connected to the transmitter 3000, and the processor 2000 and the memory 1000 are respectively sent. Connected to 3000;

The memory 1000 stores a set of program codes;

The transmitter 3000 and the processor 2000 are configured to invoke the program code stored in the memory 1000, and perform the following operations:

The processor 2000 is configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes Multiplexing up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The processor 2000 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The processor 2000 is further configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;

The transmitter 3000 is configured to map a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.

In some possible implementations, the processor 2000 is specifically configured to:

Said

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

The n10 to n12 are the fourth of the index mod 4=((y+3) mod 4) that satisfies the physical resource block. The index of the subcarrier in which the reference signal of the physical resource block pair is sorted from the low frequency to the high frequency;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the port The reference signals of numbers 7 and 8 adopt the same OCC on each subcarrier and the reference signals of the same port number whose transmission modes are TM8, TM9 and TM10 are the same as the OCC adopted on the corresponding subcarriers, and the port number is 11 The OCC used by the signal on each subcarrier is the same as the OCC used for the reference signal with port number 12 of TM8, TM9 and TM10 on the adjacent subcarriers, and the reference signal with port number 13 is used on each subcarrier. The OCC is the same as the OCC used for the reference signal with port number 14 of TM8, TM9 and TM10 on its adjacent subcarriers.

In a specific implementation, the foregoing base station may perform the implementation manners described in the foregoing steps in the first embodiment of the resource mapping method provided by the foregoing embodiment of the present invention, and the implementation manners described in the foregoing steps in the foregoing embodiments may be used. , will not repeat them here.

FIG. 13 is a schematic structural diagram of an embodiment of a user equipment according to an embodiment of the present invention. The user equipment described in the embodiment of the present invention includes: a memory 5000, a processor 6000 and a receiver 7000, the memory 5000 is connected to the receiver 7000, the processor 6000 and the memory 5000 and the The receiver 7000 is connected;

The memory 5000 stores a set of program codes;

The receiver 7000 and the processor 6000 are configured to invoke the storage in the memory 5000 Program code, do the following:

The processor 6000 is configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier codes Multiplexing up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The processor 6000 is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The receiver 7000 is configured to detect, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.

In some possible implementations, the processor 6000 is specifically configured to:

Said

In some possible implementations, determining an OCC adopted on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, in combination with a predetermined rule;

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein y is 0 or 1 or 2 or 3;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCC used on the corresponding subcarriers. The reference signal with port number 11 is the same as the OCC used for the reference signal with port number 12 of TM8, TM9 and TM10 on the adjacent subcarriers, and the reference signal with port number 13 is the same. The OCC employed on each subcarrier is the same as the OCC used for the reference signal with port number 14 of TM8, TM9, and TM10 on the adjacent subcarriers.

In a specific implementation, the foregoing user equipment may perform the implementation manners described in the foregoing steps in the second embodiment of the resource mapping method provided by the foregoing embodiment of the present disclosure. For details, refer to the implementations described in the foregoing steps in the foregoing embodiments. The way is not repeated here.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Claims

A resource mapping method, comprising:

Determining, by the base station, a location of each subcarrier used to carry the reference signal in a pair of physical resource blocks, where three subcarriers in the pair of physical resource blocks are used to carry reference signals, and each of the subcarriers is code-multiplexed into four more. Reference signal ports of different orthogonal mask OCCs, the reference signal ports of each of the subcarriers code division multiplexing are the same;

Determining, by the base station, an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The base station modulates a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;

The base station maps a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
The method according to claim 1, wherein the determining, by the base station, the OCC used on each subcarrier according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, including:

Determining, by the base station, that the OCC used by each of the subcarriers is W1, or W2, or W3 or W4, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located;

Where W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Said

Wherein, the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

The W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D, B , A], the W4 = [D, C, B, A], or, [D, C, A, B].
The method according to claim 2, wherein the determining, by the base station, the OCC adopted on each subcarrier according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, including:

Determining, by the base station, the OCC adopted on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, according to a predetermined rule;

The predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
The method according to any one of claims 1 to 3, wherein the OCC adopted on each subcarrier comprises:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 1 to 3, wherein each of the subcarriers The OCC adopted on it includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 1 to 3, wherein the OCC adopted on each subcarrier comprises:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are the fourth of the index mod 4=((y+3) mod 4) that satisfies the physical resource block. The index of the subcarrier in which the reference signal of the physical resource block pair is sorted from the low frequency to the high frequency;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 1 to 3, wherein the OCC adopted on each subcarrier comprises:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 1 to 3, wherein the OCC adopted on each subcarrier comprises:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are the first physical resources that satisfy the index of the physical resource block index mod 4=y The index of the subcarrier in which the reference signal is sorted from the low frequency to the high frequency within the source block pair;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 1-3, wherein each of the subcarriers included in all physical resource blocks included in the maximum system bandwidth is used by every two adjacent subcarriers. The OCC does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, the W2 and the W2 are adjacent, the W3 and the W3 Adjacent, the state in which W4 and W4 are adjacent.
A method according to any of claims 5-9, wherein

In each of the two consecutive physical resource blocks included in the four physical resource block pairs, the reference signals used by the respective reference signals on the respective subcarriers and the same port numbers of the transmission modes of TM8, TM9, and TM10 are The corresponding OCC used on each subcarrier is the same;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10. The reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. The OCC is the same.
The method according to any one of claims 1 to 10, wherein the reference signal is a demodulation reference signal DMRS;

The subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;

Determining, by the low frequency to the high frequency, all the subcarrier numbers used by the OCCs on the respective subcarriers are 0 to 11, and the OFDM symbol bits of the DMRS are OFDM symbol bits 5, 6, and 12. 13 symbols.
A resource mapping method, comprising:

The user equipment UE determines a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code-multiplexed to at most 4 Reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

Determining, by the UE, the OCC used on each subcarrier according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The UE detects, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.
The method according to claim 12, wherein the determining, by the UE, the OCC adopted on each subcarrier according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, includes:

Determining, by the UE, that the OCC used by each of the subcarriers is W1, or W2, or W3 or W4, according to a port number of the reference signal port and a subcarrier where each of the reference signals is located;

Where W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Said

Wherein, the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

The W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D, B , A], the W4 = [D, C, B, A], or, [D, C, A, B].
The method according to claim 13, wherein the determining, by the UE, the OCC adopted on each subcarrier according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, includes:

Determining, by the UE, the OCC adopted on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, according to a predetermined rule;

The predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
The method according to any one of claims 12 to 14, wherein the OCC adopted on each subcarrier comprises:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 12 to 14, wherein the OCC adopted on each subcarrier comprises:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 12 to 14, wherein the OCC adopted on each subcarrier comprises:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are second objects satisfying the index mod 4=((y+1) mod 4) of the physical resource block. The index of the subcarrier in which the reference signal from the low frequency to the high frequency is located within the resource block pair;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 12 to 14, wherein the OCC adopted on each subcarrier comprises:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 12 to 14, wherein the OCC adopted on each subcarrier comprises:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The method according to any one of claims 12 to 14, wherein each of the subcarriers included in all physical resource blocks included in the maximum system bandwidth is used by every two adjacent subcarriers. The OCC does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, the W2 and the W2 are adjacent, the W3 and the W3 Adjacent, the state in which W4 and W4 are adjacent.
A method according to any one of claims 16 to 20, wherein

In each of the two consecutive physical resource blocks included in the four physical resource block pairs, the reference signals used by the respective reference signals on the respective subcarriers and the same port numbers of the transmission modes of TM8, TM9, and TM10 are The corresponding OCC used on each subcarrier is the same;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10. The reference signal numbered 12 uses the same OCC, the end The reference signal with slogan 13 is the same as the OCC used for the reference signal with port number 14 of TM8, TM9 and TM10 on the adjacent subcarriers.
The method according to any one of claims 12 to 21, wherein the reference signal is a demodulation reference signal DMRS;

The subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;

Determining, by the low frequency to the high frequency, all the subcarrier numbers used by the OCCs on the respective subcarriers are 0 to 11, and the OFDM symbol bits of the DMRS are OFDM symbol bits 5, 6, and 12. 13 symbols.
A resource mapping device, comprising:

a determining module, configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code division multiplexed Up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The determining module is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

a modulation module, configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;

And a sending module, configured to map a target sequence of the reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
The device according to claim 23, wherein the determining module is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;

Where W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Wherein said

The W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

The W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D, B , A], the W4 = [D, C, B, A], or, [D, C, A, B].
The device according to claim 24, wherein the determining module is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, the OCC adopted on each subcarrier according to a predetermined rule;

The predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
The apparatus according to any one of claims 23 to 25, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 23 to 25, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 23 to 25, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 23 to 25, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 23 to 25, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 23 to 25, wherein each of the subcarriers included in all physical resource blocks included in the maximum system bandwidth is used by every two adjacent subcarriers. The OCC does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, the W2 and the W2 are adjacent, the W3 and the W3 Adjacent, the state in which W4 and W4 are adjacent.
A device according to any of claims 27-31, characterized in that

In each of the two consecutive physical resource blocks included in the four physical resource block pairs, the reference signals used by the respective reference signals on the respective subcarriers and the same port numbers of the transmission modes of TM8, TM9, and TM10 are The corresponding OCC used on each subcarrier is the same;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCC used on the corresponding subcarriers, and the reference signal of port number 11 is transmitted on the OCC adopted on each subcarrier and its adjacent subcarriers. The reference signal with port number 12 of mode TM8, TM9 and TM10 adopts the same OCC, and the reference signal of port number 13 adopts OCC on each subcarrier and its adjacent subcarriers transmit mode is TM8, TM9 and TM10. The reference signal with port number 14 is the same as the OCC.
The apparatus according to any one of claims 23 to 32, wherein the reference signal is a demodulation reference signal DMRS;

The subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;

Determining, by the low frequency to the high frequency, all the subcarrier numbers used by the OCCs on the respective subcarriers are 0 to 11, and the OFDM symbol bits of the DMRS are OFDM symbol bits 5, 6, and 12. 13 symbols.
A resource mapping device, comprising:

a determining module, configured to determine a location of each subcarrier used to carry the reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarriers is code division multiplexed Up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The determining module is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

And a receiving module, configured to detect, according to each of the OCCs, the modulated reference signal sent by the base station received on each of the subcarriers.
The device according to claim 34, wherein the determining module is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;

Wherein, said W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Wherein said

The W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

Wherein, W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D , B, A], the W4 = [D, C, B, A], or, [D, C, A, B].
The device according to claim 35, wherein the determining module is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, the OCC adopted on each subcarrier according to a predetermined rule;

The predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
The apparatus according to any one of claims 34 to 36, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 34 to 36, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 34 to 36, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 34 to 36, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 34 to 36, wherein the OCC adopted on each of the subcarriers comprises:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The apparatus according to any one of claims 34 to 36, wherein each of the subcarriers included in all physical resource blocks included in the maximum system bandwidth is used by every two adjacent subcarriers. The OCC does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, the W2 and the W2 are adjacent, the W3 and the W3 Adjacent, the state in which W4 and W4 are adjacent.
A device according to any of claims 38-42, wherein

In each of the two consecutive physical resource blocks included in the four physical resource block pairs, the reference signals used by the respective reference signals on the respective subcarriers and the same port numbers of the transmission modes of TM8, TM9, and TM10 are The corresponding OCC used on each subcarrier is the same;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCC used on the corresponding subcarriers, and the reference signal of port number 11 is transmitted on the OCC adopted on each subcarrier and its adjacent subcarriers. The reference signal with port number 12 of mode TM8, TM9 and TM10 adopts the same OCC, and the reference signal of port number 13 adopts OCC on each subcarrier and its adjacent subcarriers transmit mode is TM8, TM9 and TM10. The reference signal with port number 14 is the same as the OCC.
The apparatus according to any one of claims 34-43, wherein the reference signal is a demodulation reference signal DMRS;

The subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;

Determining, by the low frequency to the high frequency, all the subcarrier numbers used by the OCCs on the respective subcarriers are 0 to 11, and the OFDM symbol bits of the DMRS are OFDM symbol bits 5, 6, and 12. 13 symbols.
A base station, comprising: a memory, a processor and a transmitter, wherein the memory is connected to the transmitter, and the processor is respectively connected to the memory and the transmitter;

The program stores a set of program codes;

The transmitter and the processor are configured to invoke program code stored in the memory, and perform the following operations:

The processor is configured to determine a location of each subcarrier used to carry a reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier code points Multipleiating up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The processor is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The processor is further configured to modulate a sequence of reference signals carried on each of the subcarriers according to each of the OCCs to obtain a target sequence of reference signals carried on each of the subcarriers;

The transmitter is configured to map a target sequence of reference signals carried by each of the subcarriers to a resource corresponding to each of the subcarriers for transmission.
The base station according to claim 45, wherein the processor is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;

Where W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Said

Wherein, the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

The W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D, B , A], the W4 = [D, C, B, A], or, [D, C, A, B].
The base station according to claim 46, wherein the processor is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, the OCC adopted on each subcarrier according to a predetermined rule;

The predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
The base station according to any one of claims 45 to 47, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The base station according to any one of claims 45 to 47, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The base station according to any one of claims 45 to 47, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The base station according to any one of claims 45 to 47, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is a pair of all physical resource blocks included in the maximum system bandwidth. Low frequency to high frequency sorted index.
The base station according to any one of claims 45 to 47, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The base station according to any one of claims 45 to 47, wherein each of the subcarriers included in all physical resource blocks included in the maximum system bandwidth is used by every two adjacent subcarriers. The OCC does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, the W2 and the W2 are adjacent, the W3 and the W3 Adjacent, the state in which W4 and W4 are adjacent.
A base station according to any of claims 49-53, characterized in that

In each of the two consecutive physical resource blocks included in the four physical resource block pairs, the reference signals used by the respective reference signals on the respective subcarriers and the same port numbers of the transmission modes of TM8, TM9, and TM10 are The corresponding OCC used on each subcarrier is the same;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10. The reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. The OCC is the same.
The base station according to any one of claims 45 to 54, wherein the reference signal is a demodulation reference signal DMRS;

The subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;

Determining, by the low frequency to the high frequency, all the subcarrier numbers used by the OCCs on the respective subcarriers are 0 to 11, and the OFDM symbol bits of the DMRS are OFDM symbol bits 5, 6, and 12. 13 symbols.
A user equipment, comprising: a memory, a processor and a receiver, the memory being connected to the receiver, the processor being respectively connected to the memory and the receiver;

The program stores a set of program codes;

The receiver and the processor are configured to invoke program code stored in the memory, and perform the following operations:

The processor is configured to determine a location of each subcarrier used to carry a reference signal in a physical resource block pair, where three subcarriers in the physical resource block pair are used to carry a reference signal, and each of the subcarrier code points Multipleiating up to four reference signal ports using different orthogonal mask OCCs, and the reference signal ports of each of the subcarriers code division multiplexing are the same;

The processor is further configured to determine an OCC used on each subcarrier according to a port number of the reference signal port and a subcarrier where each of the reference signals is located, where the length of the OCC is 4;

The receiver is configured to detect, according to each of the OCCs, a modulated reference signal sent by a base station received on each of the subcarriers.
The user equipment according to claim 56, wherein the processor is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, an OCC used by each of the subcarriers is W1, or W2, or W3 or W4;

Where W is a 4-dimensional orthogonal matrix, A=W(p,1), B=W(p,2), C=W(p,3), D=W(p,4);

Said

Wherein, the W(p, m) represents a value corresponding to the pth row and the mth column of the orthogonal matrix W, the p corresponding to the port number of the reference signal, and the m is 1 to 4;

The W1=[A, B, C, D], the W2=[B, A, D, C], the W3=[C, D, A, B], or, [C, D, B , A], the W4 = [D, C, B, A], or, [D, C, A, B].
The user equipment according to claim 57, wherein the processor is specifically configured to:

Determining, according to the port number of the reference signal port and the subcarrier where each of the reference signals is located, the OCC adopted on each subcarrier according to a predetermined rule;

The predetermined rule is to ensure that the number of A, B, C, and D appearing in the OFDM symbol of the orthogonal frequency division multiplexing code in which the reference signals are located in the four consecutive physical resource block pairs is the same.
The user equipment according to any one of claims 56 to 58, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on the subcarriers n1, n3, and n8 is W3;

The OCC used on the subcarriers n5, n10, and n12 is W4;

The OCC used on the subcarriers n4, n6, and n11 is W1;

The OCC used on subcarriers n2, n7, and n9 is W2;

Wherein, the n1 to n3 are the first physical resources that satisfy the index of the physical resource block index mod 4=y The index of the subcarrier in which the reference signal is sorted from the low frequency to the high frequency within the source block pair;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The user equipment according to any one of claims 56 to 58, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W1;

The OCC used on subcarriers n3, n7, and n11 is W2;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
User equipment according to any one of claims 56 to 58, wherein each of said The OCC used on the subcarriers includes:

The OCC used on the subcarriers n1, n3, and n5 is W3;

The OCC used on subcarriers n2, n4, and n6 is W2;

The OCC used on subcarriers n7, n9, and n11 is W1;

The OCC used on the subcarriers n8, n10, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The user equipment according to any one of claims 56 to 58, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on the subcarriers n1, n5, and n9 is W1;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W3;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are the fourth of the index mod 4=((y+3) mod 4) that satisfies the physical resource block. The index of the subcarrier in which the reference signal of the physical resource block pair is sorted from the low frequency to the high frequency;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The user equipment according to any one of claims 56 to 58, wherein the OCC adopted on each of the subcarriers includes:

The OCC used on subcarriers n1, n5, and n9 is W3;

The OCC used on subcarriers n2, n6, and n10 is W2;

The OCC used on subcarriers n3, n7, and n11 is W1;

The OCC used on the subcarriers n4, n8, and n12 is W4;

Wherein, the n1 to n3 are indexes of subcarriers in which the reference signal sequenced from the low frequency to the high frequency is in the first physical resource block pair that satisfies the index index mod 4=y of the physical resource block;

The n4 to n6 are indexes of subcarriers in which the reference signals from the low frequency to the high frequency are aligned in the second physical resource block pair satisfying the index mod 4=((y+1) mod 4) of the physical resource block;

The n7 to n9 are indexes of subcarriers in which the reference signal from the low frequency to the high frequency is arranged in the third physical resource block pair that satisfies the index mod 4=((y+2) mod 4) of the physical resource block;

The n10 to n12 are indices of subcarriers in which the reference signal from the low frequency to the high frequency is sorted in the fourth physical resource block pair that satisfies the index mod 4=((y+3) mod 4) of the physical resource block;

Wherein y is 0 or 1 or 2 or 3;

The index of the physical resource block is an index of all physical resource block pairs included in the maximum system bandwidth sorted according to low frequency to high frequency.
The user equipment according to any one of claims 56 to 58, wherein each of the subcarriers included in all physical resource blocks included in the maximum system bandwidth is used for every two adjacent subcarriers. The OCC does not include the W1 and the W3 adjacent, the W2 and the W4 are adjacent, the W1 and the W1 are adjacent, the W2 and the W2 are adjacent, the W3 and the W3 is adjacent to the state in which W4 and W4 are adjacent.
User equipment according to any of claims 60-64, characterized in that

In each of the two consecutive physical resource blocks included in the four physical resource block pairs, the reference signals used by the respective reference signals on the respective subcarriers and the same port numbers of the transmission modes of TM8, TM9, and TM10 are The corresponding OCC used on each subcarrier is the same;

Among the other two physical resource blocks included in each of the four consecutive physical resource block pairs, the reference signals of port numbers 7 and 8 adopt OCC and transmission modes of TM8, TM9, and TM10 on each subcarrier. The reference signals of the same port number are the same as the OCCs used on the corresponding subcarriers, and the reference signals of port number 11 are used on the OCCs of the respective subcarriers and the ports of the adjacent subcarriers are transmitted in the mode of TM8, TM9 and TM10. The reference signal of number 12 uses the same OCC, and the reference signal of port number 13 is adopted in the OCC adopted on each subcarrier and the reference signal of port number 14 of the transmission mode of TM8, TM9 and TM10 on the adjacent subcarriers. The OCC is the same.
The user equipment according to any one of claims 56 to 65, wherein the reference signal is a demodulation reference signal DMRS;

The subcarriers for carrying the reference signal in each of the physical resource blocks are subcarriers 1, 6, and 11;

Determining, by the low frequency to the high frequency, all the subcarrier numbers used by the OCCs on the respective subcarriers are 0 to 11, and the OFDM symbol bits of the DMRS are OFDM symbol bits 5, 6, and 12. 13 symbols.