CN108134755B - Method and device for data processing - Google Patents

Abstract

Embodiments of the present invention disclose a method and device for data processing, which relate to the field of communication technologies and can solve the problem that when data sent by an antenna of a sending end undergoes signal fading, the receiving end may not be able to correctly demodulate the data sent by the antenna, and the data transmitted Low reliability problem. The specific scheme is as follows: the transmitting end divides the information to be sent into a first group of bits and a second group of bits; the transmitting end performs first processing on the first group of bits to obtain at least two modulation symbols, and the first processing at least includes modulation; The two sets of bits are used by the sending end to select at least one set of coding structures from at least two sets of coding structures; the sending end obtains at least one set of coding information based on at least two modulation symbols, at least one set of coding structures and the first parameter set, and the first The parameter set includes at least one of a modulation order and an optimization coefficient group; the transmitting end sends at least one group of encoded information. The embodiments of the present invention are applied in the data sending process.

Description

Method and device for data processing

technical field

Embodiments of the present invention relate to the field of communication technologies, and in particular, to a data processing method and device.

Background technique

The Orthogonal Frequency Division Multiplexing-Index Modulation (English: Orthogonal Frequency Division Multiplexing-Index Modulation, referred to as: OFDM-IM) system is a single-antenna system. In the OFDM-IM system, some sub-carriers can be selected as active sub-carriers for transmission data. Among them, the OFDM-IM system can modulate the data to be transmitted to the antenna through the modulation method of Phase-Shift Keying (English: Phase-Shift Keying, referred to as: PSK)/Quadrature Amplitude Modulation (English: Quadrature Amplitude Modulation, referred to as: QAM). transmitted on the activated subcarriers.

In order to improve the data transmission rate, the OFDM-IM system can be combined with a Multiple-Input Multiple-Output (English: Multiple-Input Multiple-Output-Orthogonal, MIMO for short) system to obtain a MIMO-OFDM-IM system. Through the MIMO-OFDM-IM system, the data to be transmitted can be divided into N data blocks, and then through the OFDM-IM system, the N data blocks are modulated to N antennas respectively for transmission. Wherein, each antenna is used to transmit one data block in N data blocks.

Among them, although the data transmission rate can be improved through the MIMO-OFDM-IM system; however, since the data sent by each antenna in the MIMO-OFDM-IM system is different, the data sent by each antenna may be transmitted during the transmission process. The problem of signal fading occurs. Therefore, when the signal fading occurs in the data sent by any antenna, the receiving end may not be able to correctly demodulate the data sent by the antenna, and the reliability of data transmission is low.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a data processing method and device, which can solve the problem that when the data sent by the antenna of the sending end undergoes signal fading, the receiving end may not be able to correctly demodulate the data sent by the antenna, resulting in the reliability of data transmission. lower problem.

To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

A first aspect of the embodiments of the present invention provides a method for data processing. The transmitting end divides the information to be sent into a first group of bits and a second group of bits; the transmitting end performs first processing on the first group of bits to obtain at least Two modulation symbols, at least two sets of coded information are obtained based on the at least two modulation symbols and the first parameter set, the above-mentioned first processing at least includes modulation; the second set of bits is used by the transmitting end to select at least one set of coded information from the at least two sets of codes. Group code information is sent.

Wherein, the transmitting end can perform coding and modulation on the first group of bits to obtain at least two modulation symbols, and process the at least two modulation symbols to obtain at least two sets of coded information (at least two sets of coded information) including the information to be sent. Each group of encoded information in the encoded information includes information to be sent), and then at least one group of encoded information is selected from the at least two groups of encoded information according to the second group of bits and sent. Since the information corresponding to each group of coding structures in the at least one set of coding structures is sent in different ways, and each set of coding information in the at least one set of coding information is obtained by the transmitting end according to the coding structure, the coding information corresponding to the selected coding structure The antenna from which the information is transmitted and the sub-carriers of the antenna from which the information is transmitted can be determined. In this way, due to the special design of the coding structure, the multiple antennas sent all contain the characteristics of the information to be sent. Therefore, even if the data transmitted on one antenna experiences signal fading, as long as at least one of the other antennas can transmit data normally, The receiving end can combine the data received on at least two antennas for demodulation, thereby increasing the probability of correct demodulation and improving the reliability of data transmission.

In a possible implementation manner, the transmitting end performs first processing on the first group of bits to obtain at least two modulation symbols, and the at least two modulation symbols may include a first modulation symbol x ₁ and a second modulation symbol x ₂ .

In a possible implementation manner, the optimization coefficient group may be predefined, and different modulation modes correspond to different optimization coefficient groups.

Wherein, the above-mentioned optimization coefficient group includes at least the optimized rotation coefficients a and b. The sender can calculate a according to a=cosθ, and the sender can calculate b according to b=sinθ, where θ is a preconfigured angle parameter.

In a possible implementation manner, the transmitting end may be a base station, and the base station may determine an optimization coefficient group.

The configuration information of the base station may be used to instruct the base station to determine the optimization coefficient group.

In a possible implementation manner, the transmitting end may be a user equipment, the user equipment receives the configuration information of the base station sent by the base station, and the user equipment may determine the optimization coefficient group according to the configuration information of the base station.

In a possible implementation manner, the coding structure may be predefined; or, the transmitting end may determine the coding structure according to the configuration information of the base station, and the transmitting end may be the base station or the user equipment.

The coding structure in the embodiment of the present invention may be a coding matrix V ₀ and a coding matrix V ₁ : the coding structure may be a first diagonal matrix or a second diagonal matrix, and the first diagonal matrix is divided by the main diagonal All other matrix elements are 0, and all other matrix elements except the sub-diagonal in the second diagonal matrix are 0. Each antenna in the coding matrix V ₀ or the coding matrix V ₁ may represent the spatial domain, and each subcarrier of each antenna may represent the frequency domain. The matrix element V11 of the coding matrix may be the data to be transmitted on the first subcarrier of the first antenna, the matrix element _V21 may be the data to be transmitted _on the first subcarrier of the second antenna, and the matrix element _V12 may be the first subcarrier. Data to be transmitted on the second subcarrier of one antenna; matrix element V ₂₂ may be the data to be transmitted on the second subcarrier of the second antenna.

和第二组编码信息

发送端可以根据编码结构V₀，将第一组编码信息中的第一传输数据ax₁+bx₂调制到第一天线的第一个子载波上传输，并将第一组编码信息中的第二传输数据

调制到第二天线的第二个子载波上传输，第一天线的第二个子载波和第二天线的第一子载波上均不传输数据；发送端可以根据编码矩阵V₁，将第二组编码信息中的第一传输数据bx₁+ax₂调制到第一天线的第二个子载波上传输，并将第二组编码信息中的第二传输数据

调制到第二天线的第一个子载波上传输，第一天线的第一个子载波和第二天线的第二子载波上均不传输数据。x₁可以用于表示至少两个调制符号中的第一调制符号，x₂可以用于表示至少两个调制符号中的第二调制符号；

为x₁的复数共轭，

为x₂的复数共轭，a、b为优化的旋转系数，发送端可以根据a＝cosθ计算得到a，发送端可以根据b＝sinθ计算得到b，θ为预配置的角度参数。In a possible implementation manner, the above-mentioned "transmitting end performs first processing on the first group of bits to obtain at least two modulation symbols, and obtains at least two sets of encoded information based on the at least two modulation symbols and the first parameter set, and the first The method for "processing at least including modulation" may include: the transmitting end may perform first processing on the first group of bits to obtain at least two modulation symbols, and the at least two modulation symbols may include a first modulation symbol x ₁ and a second modulation symbol x 1 symbol x ₂ ; the transmitting end can process the modulation symbols (the first modulation symbol x ₁ and the second modulation symbol x ₂ ) according to the coding structure V ₀ and the coding structure V ₁ respectively, to obtain two sets of coding information including the information to be sent , that is, the first set of encoded information

and the second set of encoded information

The transmitting end may modulate the first transmission data ax ₁ +bx ₂ in the first group of encoded information to the first subcarrier of the first antenna according to the encoding structure V ₀ , and transmit the first sub-carrier in the first group of encoded information. Two transmission data

The second sub-carrier of the second antenna is modulated for transmission, and neither the second sub-carrier of the first antenna nor the first sub-carrier of the second antenna transmits data; the sender can encode the second group according to the encoding matrix V ₁ . The first transmission data bx ₁ +ax ₂ in the information is modulated on the second subcarrier of the first antenna for transmission, and the second transmission data in the second group of encoded information is

Modulation is performed on the first subcarrier of the second antenna for transmission, and no data is transmitted on the first subcarrier of the first antenna and the second subcarrier of the second antenna. x ₁ may be used to represent the first modulation symbol of the at least two modulation symbols, and x ₂ may be used to represent the second modulation symbol of the at least two modulation symbols;

is the complex conjugate of x ₁ ,

is the complex conjugate of x ₂ , a and b are the optimized rotation coefficients, the sender can calculate a according to a=cosθ, the sender can calculate b according to b=sinθ, and θ is a preconfigured angle parameter.

In a possible implementation manner, the first parameter set includes at least one of a modulation order, an optimization coefficient group, and at least two groups of coding structures.

The transmitting end may use the same or different modulation modes to modulate the first group of bits, and different modulation modes correspond to different modulation orders.

和第二组编码信息

中选择第一组编码信息或者第二组编码信息发送。In a possible implementation manner, the above-mentioned method of "the second group of bits is used by the transmitting end to select at least one group of encoded information from the at least two groups of encoded information to send" may include: The first set of encoded information

and the second set of encoded information

Select the first group of encoding information or the second group of encoding information to send.

并将该第一组编码信息调制到天线的子载波上发送；当第二组比特中的1比特信息为1时，发送端可以选择第二组编码信息

并将该第二组编码信息调制到天线的子载波上发送；或者，当第二组比特中的1比特信息为0时，发送端可以选择第二组编码信息

并将该第二组编码信息调制到天线的子载波上发送；当第二组比特中的1比特信息为1时，发送端可以选择第一组编码信息

并将该第一组编码信息调制到天线的子载波上发送。In this embodiment of the present invention, one bit of information in the second group of bits may be used by the transmitting end to select at least one group of encoded information from at least two groups of encoded information to send. For example, when 1-bit information in the second group of bits is 0, the sender can select the first group of encoded information

and modulate the first group of coded information on the sub-carrier of the antenna for transmission; when 1-bit information in the second group of bits is 1, the sender can select the second group of coded information

and modulate the second group of encoded information on the sub-carrier of the antenna for transmission; or, when 1 bit of information in the second group of bits is 0, the transmitting end can select the second group of encoded information

and modulate the second group of coded information on the sub-carrier of the antenna for transmission; when the 1-bit information in the second group of bits is 1, the sender can select the first group of coded information

and modulate the first group of coded information on the sub-carriers of the antenna for transmission.

In a possible implementation manner, the method of the embodiment of the present invention may further include: the sending end determines a data sending manner according to the coding structure.

Wherein, when the transmitting end uses the above-determined transmission mode to transmit data, the number of resources required for at least one antenna to transmit data is less than the total number of resources for at least one antenna to transmit data.

The transmitting end may modulate the first transmission data on the sub-carrier of the first antenna for transmission according to the coding matrix, and modulate the second transmission data on the sub-carrier of the second antenna for transmission. Specifically, the transmitting end may modulate the first transmission data in the first group of encoded information to the subcarrier of the first antenna for transmission according to the encoding matrix V ₀ , and modulate the second transmission data in the first group of encoded information to the Or, the transmitting end can modulate the first transmission data in the second group of encoded information on the subcarriers of the first antenna for transmission according to the encoding matrix V ₁ , and transmit the first transmission data in the second group of encoded information The second transmission data is modulated on the sub-carrier of the second antenna for transmission. Wherein, the first transmission data and the second transmission data in the first group of encoding information both include the first group of encoding information; the first transmission data and the second transmission data in the second group of encoding information both include the second group of encoding information.

的特征值λ_q-1和λ_q-2，q＝0或者q＝1；发送端采用

和

计算优化的角度参数θ_opt。In a possible implementation manner, the method of the embodiment of the present invention may further include: the transmitting end calculates the matrix

The eigenvalues λ _q-1 and λ _q-2 of , q=0 or q=1; the sender uses

and

Calculate the optimized angle parameter θ _opt .

中的矩阵

是矩阵

的转置矩阵，即把矩阵

的每一行转换为该矩阵相应的每一列，可以得到矩阵

并且，编码矩阵

和编码矩阵V_q是两个不同的编码矩阵，编码矩阵

是由V_q误判后得到的编码矩阵。

表示编码间的最小编码增益函数。由于矩阵

有两个特征值λ_0-1和λ_0-2，且

因此可以根据

计算得到δ₀；矩阵

有特征值λ_1-1和λ_1-2，且

因此可以根据

计算得到δ₁。若δ₀＜δ₁，则δ_min＝δ₀；若δ₁＜δ₀，则δ_min＝δ₁。Among them, the matrix

matrix in

is the matrix

The transpose matrix of , that is, the matrix

Convert each row of the matrix to the corresponding column of the matrix, you can get the matrix

And, the encoding matrix

and the encoding matrix V _q are two different encoding matrices, the encoding matrix

is the coding matrix obtained after misjudgment by V _q .

Represents the minimum coding gain function between codes. due to the matrix

has two eigenvalues λ _0-1 and λ _0-2 , and

Therefore, according to

Calculated δ ₀ ; matrix

has eigenvalues λ _1-1 and λ _1-2 , and

Therefore, according to

Calculate δ ₁ . If δ ₀ <δ ₁ , then δ _min =δ ₀ ; if δ ₁ <δ ₀ , then δ _min =δ ₁ .

In a second aspect of the embodiments of the present invention, a method for data processing is provided. The transmitting end divides the information to be sent into a first group of bits and a second group of bits; Two modulation symbols, the first process at least includes modulation; the second group of bits is used by the transmitting end to select at least one group of encoding structures from at least two groups of encoding structures; the transmitting end is based on the at least two modulation symbols, at least one group of encoding structures and the first A parameter set is used to obtain at least one set of encoded information; the sender sends the at least one set of encoded information.

The transmitting end may perform coding and modulation on the first set of bits to obtain at least two modulation symbols, and then the transmitting end may select at least one set of coding structures from the at least two sets of coding structures according to the second set of bits, and then according to the selected At least one set of coding structures processes the obtained at least two modulation symbols to obtain at least one set of coding information containing the information to be sent (that is, each set of coding information in the at least one set of coding information contains the information to be sent), and then The sending end sends the at least one set of coding information; each set of coding information in the at least one set of coding information is obtained by the sending end according to the coding structure, that is, the sending method of the information corresponding to each set of coding structures in the at least one set of coding structures is different , and the encoding information corresponding to the determined encoding structure can determine the antenna for transmitting information and the subcarriers of the antenna for transmitting information. In this way, due to the special design of the coding structure, the multiple antennas sent contain the characteristics of the information to be sent. Therefore, even if the data transmitted on one antenna has signal fading, as long as the other antenna can transmit data normally, the receiving end will The data received on the two antennas can be combined for demodulation, which increases the probability of correct demodulation and improves the reliability of data transmission.

In a possible implementation manner, the first parameter set may include at least one of a modulation order and an optimization coefficient group.

In a possible implementation manner, the optimization coefficient group may be predefined, and different modulation modes correspond to different optimization coefficient groups.

In a possible implementation manner, the transmitter may be a base station, and the optimization coefficient group may be determined by the base station; or, the transmitter may be a user equipment, and the optimization coefficient group may be determined by the user equipment according to configuration information sent by the base station.

In a possible implementation manner, at least two sets of coding structures may be predefined; or, at least two sets of coding structures may be determined by the transmitter according to the configuration information of the base station, and the transmitter may be a base station or a user equipment.

In a possible implementation manner, the method of the embodiment of the present invention may further include: the transmitting end may determine a data transmission mode according to the coding structure; wherein, when the transmitting end may use the above transmission mode to transmit data, at least one antenna transmits the data. The number of required resources is less than the total number of resources for transmitting data of at least one antenna.

In a possible implementation manner, the above-mentioned "the sending end obtains at least one set of coding information based on at least two modulation symbols, at least one set of coding structures and the first parameter set, and the sending end sends the at least one set of coding information". The method may include: the transmitting end selects at least one set of coding structures from at least two sets of coding structures, and processes the obtained at least two modulation symbols according to the at least one set of coding structures, obtains at least one set of coding information and uses the at least one set of coding structures to process the at least two modulation symbols obtained. Encoded information is sent.

The 1-bit information in the second group of bits in this embodiment of the present invention may be used by the sending end to select at least one set of coding structures from the at least two sets of coding structures, so that the sending end can process and obtain at least one coding structure based on the selected at least one set of coding structures. Group encoding information. For example, when 1 bit of information in the second group of bits is 0, the transmitting end can use the coding structure V ₀ to process the first modulation symbol x ₁ and the second modulation symbol x ₂ to obtain the first modulation symbol containing the information to be sent. group encoded information, and modulate the first group of encoded information on the subcarriers of the antenna for transmission; when the 1-bit information in the second group of bits is ₁ , the transmitting end can use the encoding structure V1 for the _first modulation symbols x1 and x1 and The second modulation symbol x ₂ is processed to obtain a second group of encoded information containing the information to be sent, and the second group of encoded information is modulated onto the subcarrier of the antenna for transmission; or, 1-bit information in the second group of bits When it is 1, the transmitting end can use the coding structure V ₀ to process the first modulation symbol x ₁ and the second modulation symbol x ₂ to obtain the first set of coded information including the information to be sent, and use the first set of coded information It is modulated on the sub-carrier of the antenna for transmission; when 1-bit information in the second group of bits is 0, the transmitting end can use the coding structure V ₁ to process the first modulation symbol x ₁ and the second modulation symbol x ₂ , and obtain a The second group of encoded information of the transmitted information is modulated onto the sub-carriers of the antenna for transmission.

A third aspect of the embodiments of the present invention provides a sending end, where the sending end may include: a dividing unit, a first processing unit, an obtaining unit, a selecting unit, and a sending unit. The dividing unit is used to divide the information to be sent into a first group of bits and a second group of bits. The first processing unit is configured to perform first processing on the first group of bits to obtain at least two modulation symbols. An obtaining unit, configured to obtain at least two sets of coding information based on the at least two modulation symbols and the first parameter set. A selection unit, configured to select at least one group of encoding information from at least two groups of encoding information according to the second group of bits. A sending unit, configured to send at least one group of encoded information.

In a possible implementation manner, the first processing unit performs first processing on the first group of bits to obtain at least two modulation symbols, and the at least two modulation symbols may include a first modulation symbol x ₁ and a second modulation symbol x ₂ .

In a possible implementation manner, the first parameter set includes at least one of a modulation order, an optimization coefficient group, and at least two groups of coding structures.

In a possible implementation manner, the optimization coefficient group may be predefined, and different modulation modes correspond to different optimization coefficient groups.

In a possible implementation manner, the transmitting end may be a base station, and the transmitting end may further include: a first determining unit. The first determination unit is used for determining the optimization coefficient group.

In a possible implementation manner, the sending end may be a user equipment, and the sending end may further include: a receiving unit and a second determining unit. The receiving unit is used for receiving the configuration information sent by the base station. The second determining unit is configured to determine the optimization coefficient group according to the configuration information of the base station.

In one possible implementation, the encoding structure may be predefined.

In a possible implementation manner, the sending end may further include: a third determining unit. The third determining unit is configured to determine the coding structure according to the configuration information of the base station. The transmitting end may be a base station or a user equipment.

In a possible implementation manner, the sending end may further include: a fourth determining unit. The fourth determining unit is configured to determine the transmission mode of the data according to the coding structure. Wherein, when the sending unit uses the sending mode determined by the fourth determining unit to send data, the number of resources required for at least one antenna to send data is less than the total number of resources for at least one antenna to send data.

The transmitting end may modulate the first transmission data on the sub-carrier of the first antenna for transmission according to the coding matrix, and modulate the second transmission data on the sub-carrier of the second antenna for transmission. Specifically, the transmitting end may modulate the first transmission data in the first group of encoded information to the subcarrier of the first antenna for transmission according to the encoding matrix V ₀ , and modulate the second transmission data in the first group of encoded information to the Or, the transmitting end can modulate the first transmission data in the second group of encoded information on the subcarriers of the first antenna for transmission according to the encoding matrix V ₁ , and transmit the first transmission data in the second group of encoded information The second transmission data is modulated on the sub-carrier of the second antenna for transmission. Wherein, the first transmission data and the second transmission data in the first group of encoding information both include the first group of encoding information; the first transmission data and the second transmission data in the second group of encoding information both include the second group of encoding information.

的特征值λ_q-1和λ_q-2，q＝0或者q＝1；发送端采用

和

计算优化的角度参数θ_opt。In a possible implementation manner, the method of the embodiment of the present invention may further include: the transmitting end calculates the matrix

The eigenvalues λ _q-1 and λ _q-2 of , q=0 or q=1; the sender uses

and

Calculate the optimized angle parameter θ _opt .

中的矩阵

是矩阵

的转置矩阵，即把矩阵

的每一行转换为该矩阵相应的每一列，可以得到矩阵

并且，编码矩阵

和编码矩阵V_q是两个不同的编码矩阵，编码矩阵

是由V_q误判后得到的编码矩阵。

表示编码间的最小编码增益函数。由于矩阵

有两个特征值λ_0-1和λ_0-2，且

因此可以根据

计算得到δ₀；矩阵

有特征值λ_1-1和λ_1-2，且

因此可以根据

计算得到δ₁。若δ₀＜δ₁，则δ_min＝δ₀；若δ₁＜δ₀，则δ_min＝δ₁。Among them, the matrix

matrix in

is the matrix

The transpose matrix of , that is, the matrix

Convert each row of the matrix to the corresponding column of the matrix, you can get the matrix

And, the encoding matrix

and the encoding matrix V _q are two different encoding matrices, the encoding matrix

is the coding matrix obtained after misjudgment by V _q .

Represents the minimum coding gain function between codes. due to the matrix

has two eigenvalues λ _0-1 and λ _0-2 , and

Therefore, according to

Calculated δ ₀ ; matrix

has eigenvalues λ _1-1 and λ _1-2 , and

Therefore, according to

Calculate δ ₁ . If δ ₀ <δ ₁ , then δ _min =δ ₀ ; if δ ₁ <δ ₀ , then δ _min =δ ₁ .

It should be noted that the sixth aspect of the embodiments of the present invention and each functional unit of various possible implementation manners are for executing the data processing method described in the second aspect and various optional manners of the second aspect. , and the logical division of the sender. For the detailed description and beneficial effect analysis of each functional unit of the sixth aspect and its various possible implementations, reference may be made to the corresponding descriptions and technical effects in the above-mentioned second aspect and its various possible implementations, which will not be repeated here.

A fourth aspect of the embodiments of the present invention provides a transmitter, where the transmitter includes: one or more processors, a memory, a bus, and a transceiver. The memory is used to store computer-executed instructions, the processor and the memory are connected through a bus, and when the transmitter runs, the processor executes the computer-executed instructions stored in the memory, so that the transmitter executes the first aspect and various optional options of the first aspect. The method used for data processing in the method.

A fifth aspect of the embodiments of the present invention provides a computer-readable storage medium, where one or more programs are stored in the computer-readable storage medium, and the one or more programs include instructions. When the processor executes the instruction, the sending end executes the data processing method described in the first aspect and its various optional manners.

The processor in the fourth aspect may be a division unit, a first processing unit, an acquisition unit, a selection unit, a first determination unit (or a second determination unit), The integration of functional units such as the third determination unit and the fourth determination unit, the transceiver in the fourth aspect may be the integration of the sending unit and the receiving unit in the third aspect and its various possible implementation manners, and is used to realize the transmission Information exchange between the terminal and other communication devices (such as the receiving terminal). The sending end in the fourth aspect and the specific technical effect of the sending end executing the program stored in the computer-readable storage medium described in the fifth aspect and the relevant analysis process thereof may refer to the first aspect or the first aspect of the embodiments of the present invention. The description of the related technical effects in any implementation manner will not be repeated here.

A sixth aspect of the embodiments of the present invention provides a sending end, where the sending end may include: a dividing unit, a first processing unit, a selecting unit, an obtaining unit, and a sending unit. The dividing unit is used to divide the information to be sent into a first group of bits and a second group of bits. The first processing unit is configured to perform first processing on the first group of bits to obtain at least two modulation symbols, and the first processing at least includes modulation. The selecting unit is configured to select at least one set of coding structures from the at least two sets of coding structures according to the second set of bits obtained by the dividing unit. An obtaining unit, configured to obtain at least one set of coding information based on the at least two modulation symbols obtained by the first processing unit, at least one set of coding structures obtained by the selection unit, and the first parameter set. The sending unit is configured to send the at least one group of encoded information obtained by the obtaining unit.

In a possible implementation manner, the first processing unit performs first processing on the first group of bits to obtain at least two modulation symbols, and the at least two modulation symbols may include a first modulation symbol x ₁ and a second modulation symbol x ₂ .

In a possible implementation manner, the transmitting end may further include: a space-frequency coding unit. The space-frequency coding unit is used to process the first modulation symbol x ₁ and the second modulation symbol x ₂ obtained by the first processing unit by using a codeword matrix of the information to be sent, and obtain a first group of coded information and a second modulation symbol x 2. The two encoding matrices of the group encoding information, the first group encoding information and the second group encoding information both contain the characteristics of the _first modulation symbol x1 and the second modulation symbol _x2 .

In a possible implementation manner, the first parameter set includes at least one of a modulation order and an optimization coefficient group.

In a possible implementation manner, the optimization coefficient group may be predefined, and different modulation modes correspond to different optimization coefficient groups.

In a possible implementation manner, the transmitting end may be a base station, and the transmitting end may further include: a first determining unit. The first determination unit is used for determining the optimization coefficient group.

In a possible implementation manner, the sending end may be a user equipment, and the sending end may further include: a receiving unit and a second determining unit. The receiving unit is used for receiving the configuration information sent by the base station. The second determining unit is configured to determine the optimization coefficient group according to the configuration information of the base station.

In one possible implementation, the encoding structure may be predefined.

In a possible implementation manner, the sending end may further include: a third determining unit. The third determining unit is configured to determine the coding structure according to the configuration information of the base station. The transmitting end may be a base station or a user equipment.

In a possible implementation manner, the sending end may further include: a fourth determining unit. The fourth determining unit is configured to determine the transmission mode of the data according to the coding structure. Wherein, when the sending unit uses the sending mode determined by the fourth determining unit to send data, the number of resources required for at least one antenna to send data is less than the total number of resources for at least one antenna to send data.

It should be noted that the sixth aspect of the embodiments of the present invention and each functional unit of various possible implementation manners are for executing the data processing method described in the second aspect and various optional manners of the second aspect. , and the logical division of the sender. For the detailed description and beneficial effect analysis of each functional unit of the sixth aspect and its various possible implementations, reference may be made to the corresponding descriptions and technical effects in the above-mentioned second aspect and its various possible implementations, which will not be repeated here.

In a seventh aspect of the embodiments of the present invention, a transmitter is provided, where the transmitter includes: one or more processors, a memory, a bus, and a transceiver. The memory is used to store the computer-executed instructions, the processor and the memory are connected through a bus, and when the sender runs, the processor executes the computer-executed instructions stored in the memory, so that the sender executes the second aspect and various optional items of the second aspect. The method used for data processing in the method.

In an eighth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, where one or more programs are stored in the computer-readable storage medium, and the one or more programs include instructions. When the processor executes the instruction, the sending end executes the data processing method described in the second aspect and its various optional manners.

Wherein, the processor in the seventh aspect may be a division unit, a first processing unit, a selection unit, an acquisition unit, a first determination unit (or a second determination unit), The integration of functional units such as the third determining unit and the fourth determining unit, and the transceiver in the seventh aspect may be the integration of the transmitting unit and the receiving unit in the sixth aspect and its various possible implementation manners, for implementing the transmission Information exchange between the terminal and other communication devices (such as the receiving terminal). The sending end in the seventh aspect and the specific technical effect of the sending end executing the program stored in the computer-readable storage medium described in the eighth aspect and the relevant analysis process thereof may refer to the second aspect or the second aspect of the embodiments of the present invention. The description of the related technical effects in any implementation manner will not be repeated here.

Description of drawings

FIG. 1 is a schematic structural diagram of a MIMO-OFDM-IM system according to an embodiment of the present invention;

2 is a flowchart of a method for data processing provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a space-frequency coding MIMO-OFDM-IM system according to an embodiment of the present invention;

4 is a flowchart of another data processing method provided by an embodiment of the present invention;

5 is a flowchart of another data processing method provided by an embodiment of the present invention;

6 is a flowchart of another data processing method provided by an embodiment of the present invention;

7 is a flowchart of another data processing method provided by an embodiment of the present invention;

FIG. 8 is a flowchart of another data processing method provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a transmitter according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another transmitter according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of another transmitter according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another transmitter according to an embodiment of the present invention.

Detailed ways

The data processing method and device provided by the embodiments of the present invention can be applied to MIMO-OFDM-IM and the data transmission process in the system.

Please refer to FIG. 1 , which shows a schematic structural diagram of a MIMO-OFDM-IM system provided by an embodiment of the present invention. As shown in FIG. 1 , the MIMO-OFDM-IM system includes: T MIMO-OFDM-IM branches. Each MIMO-OFDM-IM branch in the T MIMO-OFDM-IM branches includes: an OFDM-IM module, a coding and modulation module, and an Inverse Fast Fourier Transform (English: Inverse Fast Fourier Transform, IFFT for short) module And cyclic prefix (English: CyclicPrefix, referred to as: CP) module.

Specifically, in a branch of the MIMO-OFDM-IM system, the transmitter divides m*T information bits to be sent into T groups, and each group in the T group has m bits of information; The bit information is divided into G groups, each of the G groups includes P=p ₁ +p ₂ bits, and p ₁ and p ₂ correspond to the number of bits for subcarrier selection and constellation symbol selection, respectively. As shown in Figure 1, the OFDM-IM module can determine the transmission mode of the information to be sent according to the p ₁ -bit information; then the coding and modulation module performs coding and modulation on the p ₂ -bit information to obtain the modulation symbol x; The modulation symbol x performs an IFFT operation to map the information to be sent in the frequency domain to the corresponding time domain; the CP module adds a guard interval to the modulation symbol x after the IFFT operation, and finally the information to be sent is sent by the antenna.

In the embodiment of the present invention, in order to improve the reliability of data transmission in the MIMO-OFDM-IM system, the above-mentioned MIMO-OFDM-IM system can be combined with SFC, and the data in the MIMO-OFDM-IM system can be improved by means of transmit diversity. Transmission reliability. Among them, the transmit diversity technology is to carry multiple copies of the same information through multiple channels. Due to the different transmission characteristics of each channel in the multiple channels, the fading of each copy of the information is not completely the same; the receiving end will receive The multipath signal is separated into uncorrelated multipath signals, and the energy of the multipath signals is combined according to certain rules to maximize the received useful signal energy. Among them, the SFC technology is to combine the signals in the frequency domain and the space domain for coding, and use the correlation between the frequency and the space to improve the reliability of data transmission in the system.

The data processing method and device provided by the embodiments of the present invention will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

The embodiment of the present invention provides a method for data processing. The transmitting end can obtain at least two sets of coding information according to at least two sets of coding structures, and select at least one set of coding information from the at least two sets of coding information to send. Specifically, as shown in Figure 2, the data processing method includes:

S201. The transmitting end divides the information to be sent into a first group of bits and a second group of bits.

The transmitting end may interact with the receiving end to determine the first group of bits and the second group of bits.

S202. The transmitting end performs first processing on the first group of bits to obtain at least two modulation symbols, where the first processing at least includes modulation.

The transmitting end obtains at least two modulation symbols after coding and modulating the first group of bits by using the OFDM-IM technology.

S203. The transmitting end obtains at least two sets of encoded information based on the at least two modulation symbols and the first parameter set.

Wherein, the first parameter set may include at least one of modulation order, optimization coefficient group and at least two groups of coding structures. The transmitting end may use different modulation modes to modulate the first group of bits, and different modulation modes correspond to different modulation orders.

Exemplarily, the at least two groups of coding structures in this embodiment of the present invention may be a coding matrix V ₀ and a coding matrix V ₁ , and the coding matrix V ₀ and the coding matrix V ₁ may be a first diagonal matrix or a second diagonal matrix. , other matrix elements in the first diagonal matrix except the main diagonal are 0, and other matrix elements in the second diagonal matrix except the sub-diagonal are 0. Each antenna in the coding matrix V ₀ or the coding matrix V ₁ may represent the spatial domain, and each subcarrier of each antenna may represent the frequency domain. The matrix element V11 of the coding matrix may be the data to be transmitted on the first subcarrier of the first antenna, the matrix element _V21 may be the data to be transmitted _on the first subcarrier of the second antenna, and the matrix element _V12 may be the first subcarrier. Data to be transmitted on the second subcarrier of one antenna; matrix element V ₂₂ may be the data to be transmitted on the second subcarrier of the second antenna.

和第二组编码信息

发送端可以根据编码结构V₀，将第一组编码信息中的第一传输数据ax₁+bx₂调制到第一天线的第一个子载波上传输，并将第一组编码信息中的第二传输数据

调制到第二天线的第二个子载波上传输，第一天线的第二个子载波和第二天线的第一子载波上均不传输数据；发送端可以根据编码矩阵V₁，将第二组编码信息中的第一传输数据bx₁+ax₂调制到第一天线的第二个子载波上传输，并将第二组编码信息中的第二传输数据

调制到第二天线的第一个子载波上传输，第一天线的第一个子载波和第二天线的第二子载波上均不传输数据。其中，x₁可以用于表示至少两个调制符号中的第一调制符号，x₂可以用于表示至少两个调制符号中的第二调制符号；

为x₁的复数共轭，

为x₂的复数共轭，a、b为优化的旋转系数，发送端可以根据a＝cosθ计算得到a，发送端可以根据b＝sinθ计算得到b，θ为预配置的角度参数。The transmitting end may perform the first processing on the first group of bits to obtain at least two modulation symbols, and the at least two modulation symbols may include the first modulation symbol x ₁ and the second modulation symbol x ₂ ; the transmitting end may, respectively, according to the coding structure The modulation symbols (the first modulation symbol x ₁ and the second modulation symbol x ₂ ) are processed by V ₀ and the coding structure V ₁ to obtain two sets of coded information including the information to be sent, namely the first set of coded information

and the second set of encoded information

The transmitting end may modulate the first transmission data ax ₁ +bx ₂ in the first group of encoded information to the first subcarrier of the first antenna according to the encoding structure V ₀ , and transmit the first sub-carrier in the first group of encoded information. Two transmission data

The second sub-carrier of the second antenna is modulated for transmission, and neither the second sub-carrier of the first antenna nor the first sub-carrier of the second antenna transmits data; the sender can encode the second group according to the encoding matrix V ₁ . The first transmission data bx ₁ +ax ₂ in the information is modulated on the second subcarrier of the first antenna for transmission, and the second transmission data in the second group of encoded information is

Modulation is performed on the first subcarrier of the second antenna for transmission, and no data is transmitted on the first subcarrier of the first antenna and the second subcarrier of the second antenna. Wherein, x ₁ may be used to represent the first modulation symbol of the at least two modulation symbols, and x ₂ may be used to represent the second modulation symbol of the at least two modulation symbols;

is the complex conjugate of x ₁ ,

is the complex conjugate of x ₂ , a and b are the optimized rotation coefficients, the sender can calculate a according to a=cosθ, the sender can calculate b according to b=sinθ, and θ is a preconfigured angle parameter.

S204. The transmitting end selects at least one group of encoded information from the at least two groups of encoded information according to the second group of bits to send.

The second group of bits may be used to instruct the transmitting end to select at least one group of encoded information from the at least two groups of encoded information to send.

和第二组编码信息

中选择第一组编码信息或者第二组编码信息发送。Exemplarily, the transmitting end may obtain the first set of encoded information containing the information to be sent from

and the second set of encoded information

Select the first group of encoding information or the second group of encoding information to send.

并将该第一组编码信息调制到天线的子载波上发送；当第二组比特中的1比特信息为1时，发送端可以选择第二组编码信息

并将该第二组编码信息调制到天线的子载波上发送；或者，当第二组比特中的1比特信息为0时，发送端可以选择第二组编码信息

并将该第二组编码信息调制到天线的子载波上发送；当第二组比特中的1比特信息为1时，发送端可以选择第一组编码信息

并将该第一组编码信息调制到天线的子载波上发送。In this embodiment of the present invention, one bit of information in the second group of bits may be used by the transmitting end to select at least one group of encoded information from at least two groups of encoded information to send. For example, when 1-bit information in the second group of bits is 0, the sender can select the first group of encoded information

and modulate the first group of coded information on the sub-carrier of the antenna for transmission; when 1-bit information in the second group of bits is 1, the sender can select the second group of coded information

and modulate the second group of encoded information on the sub-carrier of the antenna for transmission; or, when 1 bit of information in the second group of bits is 0, the transmitting end can select the second group of encoded information

and modulate the second group of coded information on the sub-carrier of the antenna for transmission; when the 1-bit information in the second group of bits is 1, the transmitting end can select the first group of coded information

and modulate the first group of coded information on the sub-carriers of the antenna for transmission.

An embodiment of the present invention provides a data processing method. The transmitting end can perform coding and modulation on the first group of bits to obtain at least two modulation symbols, and then process the at least two modulation symbols to obtain information including information to be sent. At least two groups of encoded information (each group of encoded information in the at least two groups of encoded information includes information to be sent), and then at least one group of encoded information is selected from the at least two groups of encoded information according to the second group of bits and sent. Since the information corresponding to each group of coding structures in the at least one set of coding structures is sent in different ways, and each set of coding information in the at least one set of coding information is obtained by the transmitting end according to the coding structure, the coding information corresponding to the selected coding structure The antenna from which the information is transmitted and the sub-carriers of the antenna from which the information is transmitted can be determined. In this way, due to the special design of the coding structure, the multiple antennas sent all contain the characteristics of the information to be sent. Therefore, even if the data transmitted on one antenna experiences signal fading, as long as at least one of the other antennas can transmit data normally, The receiving end can combine the data received on at least two antennas for demodulation, thereby increasing the probability of correct demodulation and improving the reliability of data transmission.

The transmitting end obtains at least two sets of coding information based on the modulation symbols and a first parameter set, where the first parameter set includes at least one of a modulation order, an optimization coefficient group, and at least two sets of coding structures, and the above-mentioned optimization coefficient group may be predefined , different modulation modes correspond to different optimization coefficient groups; or the foregoing optimization coefficient groups may also be determined by the transmitting end according to the configuration information of the base station. The transmitting end in this embodiment of the present invention may be a base station. Specifically, as shown in FIG. 4 , before S203 shown in FIG. 2 , the method in this embodiment of the present invention may further include S401:

S401. The base station determines an optimization coefficient group.

Wherein, the above-mentioned optimization coefficient group may be predefined, and the transmitting end adopts different modulation modes to correspond to different optimization coefficient groups, and the above-mentioned optimization coefficient group at least includes an optimized rotation coefficient a and an optimized rotation system b.

Exemplarily, when the transmitting end modulates the first modulation symbol x ₁ and the second modulation symbol x ₂ by using the same modulation method, the transmitting end selects a corresponding set of predefined optimization coefficient groups, that is, the optimized rotation coefficient a. and optimized rotation system b; when the transmitting end uses different modulation modes to modulate the first modulation symbol x ₁ and the second modulation symbol x ₂ , the transmitting end selects the corresponding two groups of predefined optimization coefficient groups, that is, the optimized Rotation coefficient a and optimized rotation system b.

The transmitting end in this embodiment of the present invention may also be a user equipment. Specifically, as shown in FIG. 5 , before S203 shown in FIG. 2 , the method in this embodiment of the present invention may further include S401 ′ and S402 ′:

S401', the user equipment receives the configuration information sent by the base station;

The configuration information of the base station may be used to instruct the transmitting end to determine the optimization coefficient group.

S402', the user equipment determines an optimization coefficient group according to the configuration information sent by the base station.

It should be noted that when the transmitting end is the user equipment, the user equipment determines the optimization coefficient group according to the configuration information sent by the base station; when the receiving end is the user equipment, the user equipment at the receiving end also needs to receive the configuration information sent by the base station, and the receiving end can The configuration information of the received base station determines the optimization coefficient group of the transmitting end, so that the receiving end can correctly demodulate the received information.

The coding structure in this embodiment of the present invention may be predefined, or may be determined by the transmitting end according to the configuration information of the base station. Specifically, as shown in FIG. 6 , before S203 shown in FIG. 2 , the method of the embodiment of the present invention may further include S601:

S601. The transmitting end determines the coding structure according to the configuration information of the base station.

Wherein, in the process of interacting with the base station, the transmitting end may determine the coding structure according to the configuration information of the base station, and the coding structure is used to indicate the way of transmitting the data by the transmitting end.

Exemplarily, the transmitting end in the embodiment of the present invention uses the codeword matrix of the information to be sent, and processes the first modulation symbol x ₁ and the second modulation symbol x ₂ obtained after processing such as coding and modulation, to obtain a two encoding matrices of the group encoding information and the second group encoding information, then the two encoding structures can be the first diagonal matrix or the second diagonal matrix. The matrix elements are all 0, and the other matrix elements except the sub-diagonal in the second diagonal matrix are all 0.

The SFC technology in the embodiment of the present invention is to combine the modulation symbols in the frequency domain and the spatial domain for coding. Each antenna in the coding matrix V ₀ or the coding matrix V ₁ can represent the spatial domain, and each subcarrier of each antenna can represents the frequency domain. The matrix element V11 of the coding matrix may be the data to be transmitted on the first subcarrier of the first antenna, the matrix element _V21 may be the data to be transmitted _on the first subcarrier of the second antenna, and the matrix element _V12 may be the first subcarrier. Data to be transmitted on the second subcarrier of one antenna; matrix element V ₂₂ may be the data to be transmitted on the second subcarrier of the second antenna.

It should be noted that when the transmitting end is the user equipment, the user equipment determines at least two sets of coding structures according to the configuration information sent by the base station; when the receiving end is the user equipment, the user equipment at the receiving end also needs to receive the configuration information sent by the base station, and the receiving end can At least two sets of coding structures of the transmitting end are determined according to the received configuration information of the base station, so that the receiving end can correctly demodulate the received information.

The coding structure can be used to instruct the sender to determine how the data is sent. Specifically, as shown in FIG. 7 , after S203 and before S204 as shown in FIG. 2 , the method in this embodiment of the present invention may further include S701:

S701. The sending end determines a data sending mode according to the coding structure.

Wherein, when the transmitting end uses a certain transmission mode to transmit data, the number of resources required for at least one antenna to transmit data is less than the total number of resources for transmitting data of at least one antenna, that is, each antenna in the at least one antenna is transmitting the data to be transmitted. When the information is sent, not all sub-carriers of each antenna are used to transmit data, but part of sub-carriers of each antenna are used to transmit data.

Exemplarily, the transmitting end may, according to the coding matrix, modulate the first transmission data on the sub-carrier of the first antenna for transmission, modulate the second transmission data on the sub-carrier of the second antenna for transmission, and the second sub-carrier of the first antenna. No data is transmitted on neither the carrier nor the first sub-carrier of the second antenna. Specifically, the transmitting end may modulate the first transmission data in the first group of encoded information to the subcarrier of the first antenna for transmission according to the encoding matrix V ₀ , and modulate the second transmission data in the first group of encoded information to the Or, the transmitting end can modulate the first transmission data in the second group of encoded information on the subcarriers of the first antenna for transmission according to the encoding matrix V ₁ , and transmit the first transmission data in the second group of encoded information The second transmission data is modulated on the sub-carrier of the second antenna for transmission. Wherein, the first transmission data and the second transmission data in the first group of encoding information both include the first group of encoding information; the first transmission data and the second transmission data in the second group of encoding information both include the second group of encoding information.

调制到第二天线的第二个子载波上传输，第一天线的第二个子载波和第二天线的第一子载波上均不传输数据。The transmitting end may modulate the first transmission data ax ₁ +bx ₂ on the first subcarrier of the first antenna according to the coding matrix V ₀ for transmission, and transmit the second transmission data

The second subcarrier of the second antenna is modulated for transmission, and no data is transmitted on the second subcarrier of the first antenna and the first subcarrier of the second antenna.

接收端便可以接收到该第二传输数据

并解调该数据得到上述待传输数据；或者，即使第二天线的第二个子载波上的第二传输数据

发生信号衰落，只要第一天线的第一个子载波可以正常传输第一传输数据ax₁+bx₂，接收端便可以接收到该第一传输数据ax₁+bx₂，并解调该数据得到上述待传输数据，如此便可以提高数据传输的可靠性。Since both the first transmission data and the second transmission data contain data to be transmitted, and the first transmission data and the second transmission data are transmitted through different subcarriers of different antennas, even if the first subcarrier of the first antenna Signal fading occurs in the first transmission data ax ₁ +bx ₂ , as long as the second subcarrier of the second antenna can transmit the second transmission data normally

The receiving end can receive the second transmission data

and demodulate the data to obtain the above data to be transmitted; or, even if the second transmission data on the second subcarrier of the second antenna

Signal fading occurs, as long as the first subcarrier of the first antenna can transmit the first transmission data ax ₁ +bx ₂ normally, the receiver can receive the first transmission data ax ₁ +bx ₂ , and demodulate the data to obtain The above-mentioned data to be transmitted can thus improve the reliability of data transmission.

调制到第二天线的第一个子载波上传输，第一天线的第一个子载波和第二天线的第二子载波上均不传输数据。Wherein, the transmitting end may modulate the first transmission data bx ₁ +ax ₂ to the second subcarrier of the first antenna according to the coding matrix V ₁ for transmission, and transmit the second transmission data

Modulation is performed on the first subcarrier of the second antenna for transmission, and no data is transmitted on the first subcarrier of the first antenna and the second subcarrier of the second antenna.

接收端便可以接收到该第二传输数据

并解调该数据得到上述待传输数据；或者，即使第二天线的第一个子载波上的第二传输数据

发生信号衰落，只要第一天线的第二个子载波可以正常传输第一传输数据bx₁+ax₂，接收端便可以接收到该第一传输数据bx₁+ax₂，并解调该数据得到上述待传输数据，如此便可以提高数据传输的可靠性。Since both the first transmission data and the second transmission data include data to be transmitted, and the first transmission data and the second transmission data are transmitted through different subcarriers of different antennas, even if the Signal fading occurs in the first transmission data bx ₁ +ax ₂ , as long as the first subcarrier of the second antenna can transmit the second transmission data normally

The receiving end can receive the second transmission data

and demodulate the data to obtain the above-mentioned data to be transmitted; or, even if the second transmission data on the first subcarrier of the second antenna

Signal fading occurs, as long as the second subcarrier of the first antenna can transmit the first transmission data bx ₁ +ax ₂ normally, the receiving end can receive the first transmission data bx ₁ +ax ₂ , and demodulate the data to obtain the above Data to be transmitted, so that the reliability of data transmission can be improved.

的特征值λ_q-1和λ_q-2，q＝0或者q＝1；发送端可以采用

和

计算优化的角度参数θ_opt。It is conceivable that, since a and b in the coding matrix V ₀ or the coding matrix V ₁ are optimized rotation coefficients, and the transmitting end can calculate a and b according to the pre-configured angle parameter θ, the coding matrix V can be obtained by calculating a and b. ₀ or θ in the encoding matrix V ₁ is optimized, so that the optimized rotation coefficients a, b can be obtained. The optimization method of θ: optimizes θ with the minimum coding gain between codes as the objective function, and obtains the optimized angle parameter θ _opt . Specifically, the sender can calculate the matrix

The eigenvalues λ _q-1 and λ _q-2 of , q=0 or q=1; the sender can use

and

Calculate the optimized angle parameter θ _opt .

中的矩阵

是矩阵

的转置矩阵，即把矩阵

的每一行转换为该矩阵相应的每一列，可以得到矩阵

并且，编码矩阵

和编码矩阵V_q是两个不同的编码矩阵，编码矩阵

是由V_q误判后得到的编码矩阵；当发送端采用的调制方式不同时，

的值也可能不同，每种调制方式可能存在多个调制符号，第一调制星座符号x₁和第一调制星座符号x₂可能会被误判成其他的调制符号，导致

出现不同的值。Among them, the matrix

matrix in

is the matrix

The transpose matrix of , that is, the matrix

Convert each row of the matrix to the corresponding column of the matrix, you can get the matrix

And, the encoding matrix

and the encoding matrix V _q are two different encoding matrices, the encoding matrix

is the coding matrix obtained after the misjudgment of V _q ; when the modulation methods adopted by the transmitting end are different,

may also be different. There may be multiple modulation symbols for each modulation method. The first modulation constellation symbol x ₁ and the first modulation constellation symbol x ₂ may be misjudged as other modulation symbols, resulting in

A different value appears.

表示编码间的最小编码增益函数。由于矩阵

有两个特征值λ_0-1和λ_0-2，且

因此发送端可以根据

计算得到δ₀；矩阵

有特征值λ_1-1和λ_1-2，且

因此发送端可以根据

计算得到δ₁。若δ₀＜δ₁，则δ_min＝δ₀；若δ₁＜δ₀，则δ_min＝δ₁。in,

Represents the minimum coding gain function between codes. due to the matrix

has two eigenvalues λ _0-1 and λ _0-2 , and

Therefore, the sender can

Calculated δ ₀ ; matrix

has eigenvalues λ _1-1 and λ _1-2 , and

Therefore, the sender can

Calculate δ ₁ . If δ ₀ <δ ₁ , then δ _min =δ ₀ ; if δ ₁ <δ ₀ , then δ _min =δ ₁ .

It should be noted that, since it is generally difficult to obtain the optimal angle parameter in the calculation, θ _opt can be obtained by using a computer search. For example, when BPSK modulation is used, θ _opt =π/6 obtained by computer search; when 4QAM, 8QAM and 16QAM modulation are used, θ _opt =25π/128 obtained by computer search.

The embodiment of the present invention also provides a method for data processing. The transmitting end can obtain at least one set of coding information according to the selected at least one set of coding structures, and send the at least one set of coding information. Specifically, as shown in Figure 8, the data processing method further includes:

S801. The transmitting end divides the information to be sent into a first group of bits and a second group of bits.

The transmitting end may determine the first group of bits and the second group of bits according to the interaction between the base station and the user equipment.

S802. The transmitting end performs first processing on the first group of bits to obtain at least two modulation symbols, where the first processing at least includes modulation.

The transmitting end obtains at least two modulation symbols after coding and modulating the first group of bits by using the OFDM-IM technology.

S803. The transmitting end selects at least one set of coding structures from at least two sets of coding structures according to the second set of bits.

The second group of bits may be used to instruct the transmitting end to select at least one set of coding structures from at least two sets of coding structures, and process the at least two modulation symbols obtained according to the at least one set of coding structures to obtain at least one set of coding information and send the at least one set of encoded information.

The 1-bit information in the second group of bits in this embodiment of the present invention may be used by the sending end to select at least one set of coding structures from the at least two sets of coding structures, so that the sending end can process and obtain at least one coding structure based on the selected at least one set of coding structures. Group encoding information.

S804. The transmitting end obtains at least one set of coding information based on the at least two modulation symbols, at least one set of coding structures, and the first parameter set.

Wherein, the first parameter set may include at least one of a modulation order and an optimization coefficient group. The transmitting end may use different modulation modes to modulate the first group of bits, and different modulation modes correspond to different modulation orders. The transmitting end may process the obtained modulation symbols based on the adopted modulation mode, the optimized coefficient group and the selected at least one group of coding structures.

Exemplarily, at least one group of coding structures in this embodiment of the present invention may be a coding matrix V ₀ or a coding matrix V ₁ , and the coding matrix V ₀ and the coding matrix V ₁ may be a first diagonal matrix or a second diagonal matrix. , other matrix elements in the first diagonal matrix except the main diagonal are 0, and other matrix elements in the second diagonal matrix except the sub-diagonal are 0. Each antenna in the coding matrix V ₀ or the coding matrix V ₁ may represent the spatial domain, and each subcarrier of each antenna may represent the frequency domain. The matrix element V11 of the coding matrix may be the data to be transmitted on the first subcarrier of the first antenna, the matrix element _V21 may be the data to be transmitted _on the first subcarrier of the second antenna, and the matrix element _V12 may be the first subcarrier. Data to be transmitted on the second subcarrier of one antenna; matrix element V ₂₂ may be the data to be transmitted on the second subcarrier of the second antenna.

When the 1-bit information in the second group of bits is 0, the transmitting end can use the coding structure V ₀ to process the first modulation symbol x ₁ and the second modulation symbol x ₂ to obtain the first group of codes containing the information to be sent information, and modulate the first group of coded information on the subcarriers of the antenna for transmission; when 1-bit information in the second group of bits is 1, the transmitting end can use the coding structure V ₁ to pair the first modulation symbol x ₁ and the second The modulation symbol x ₂ is processed to obtain a second set of coded information containing the information to be sent, and the second set of coded information is modulated onto the subcarrier of the antenna for transmission; or, 1 bit of information in the second set of bits is 1 , the transmitting end can use the coding structure V ₀ to process the first modulation symbol x ₁ and the second modulation symbol x ₂ to obtain the first set of coded information including the information to be sent, and modulate the first set of coded information to It is sent on the subcarrier of the antenna; when 1-bit information in the second group of bits is 0, the transmitting end can use the coding structure V ₁ to process the first modulation symbol x ₁ and the second modulation symbol x ₂ , and obtain the A second group of encoded information of the information is modulated onto the sub-carriers of the antenna for transmission.

S805. The sending end sends at least one set of encoded information.

The transmitting end may obtain at least one set of coding information according to the selected at least one set of coding structures.

并将该第一组编码信息调制到天线的子载波上发送；或者，发送端可以根据选择的编码结构V₁对得到的第一调制符号x₁和第二调制符号x₂进行处理，可以得到包含待发送的信息的第二组编码信息

并将该第二组编码信息调制到天线的子载波上发送。Exemplarily, the transmitting end may process the obtained first modulation symbol x ₁ and second modulation symbol x ₂ according to the selected coding structure V ₀ , and may obtain the first group of encoded information including the information to be sent.

and modulate the first group of coded information on the subcarriers of the antenna for transmission; or, the transmitting end can process the obtained first modulation symbol x ₁ and second modulation symbol x ₂ according to the selected coding structure V ₁ , and can obtain A second set of encoded messages containing the message to be sent

and modulate the second group of coded information on the sub-carriers of the antenna for transmission.

The transmitting end may perform coding and modulation on the first set of bits to obtain at least two modulation symbols, and then the transmitting end may select at least one set of coding structures from the at least two sets of coding structures according to the second set of bits, and then according to the selected At least one set of coding structures processes the obtained at least two modulation symbols to obtain at least one set of coding information containing the information to be sent (that is, each set of coding information in the at least one set of coding information contains the information to be sent), and then The sending end sends the at least one set of coding information; each set of coding information in the at least one set of coding information is obtained by the sending end according to the coding structure, that is, the sending method of the information corresponding to each set of coding structures in the at least one set of coding structures is different , and the encoding information corresponding to the determined encoding structure can determine the antenna for transmitting information and the subcarriers of the antenna for transmitting information. In this way, due to the special design of the coding structure, the multiple antennas sent contain the characteristics of the information to be sent. Therefore, even if the data transmitted on one antenna has signal fading, as long as the other antenna can transmit data normally, the receiving end will The data received on the two antennas can be combined for demodulation, which increases the probability of correct demodulation and improves the reliability of data transmission.

The foregoing mainly introduces the solutions provided by the embodiments of the present invention from the perspective of the transmitting end. It can be understood that, in order to realize the above functions, the sending end includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present invention can be implemented in hardware or a combination of hardware and computer software in conjunction with the sending end and algorithm steps of each example described in the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

In this embodiment of the present invention, the transmitting end may be divided into functional modules or functional units according to the foregoing method examples. For example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. in the module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules or functional units. Wherein, the division of modules or units in the embodiments of the present invention is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

FIG. 9 shows a possible schematic structural diagram of the transmitting end involved in the above embodiment. The sending end 900 may include: a dividing unit 901 , a first processing unit 902 , an obtaining unit 903 , a selecting unit 904 and a sending unit 905 . The dividing unit 901 is configured to divide the information to be sent into a first group of bits and a second group of bits. For example, the division unit 901 is used to support S201 and S801 in the above-described embodiments, and/or other processes for the techniques described herein. The first processing unit 902 is configured to perform first processing on the first group of bits to obtain at least two modulation symbols. For example, the first processing unit 902 for supporting S202 and S802 in the above-described embodiments, and/or other processes for the techniques described herein. The obtaining unit 903 is configured to obtain at least two sets of coding information based on the at least two modulation symbols and the first parameter set. The obtaining unit 903 is further configured to obtain at least one set of coding information based on the at least two modulation symbols, at least one set of coding structures and the first parameter set. For example, the acquisition unit 903 is used to support S203 and S804 in the above-described embodiments, and/or other processes for the techniques described herein. The selecting unit 904 is configured to select at least one group of encoding information from at least two groups of encoding information according to the second group of bits. The selecting unit 904 is further configured to select at least one set of coding structures from the at least two sets of coding structures according to the second set of bits. For example, selection unit 904 for supporting S204 and S803 in the above-described embodiments, and/or other processes for the techniques described herein. The sending unit 905 is configured to send at least one group of encoded information. For example, the sending unit 905 is used to support S204 and S805 in the above-described embodiments, and/or other processes for the techniques described herein.

Further, when the transmitting end is a base station, as shown in FIG. 10 , the transmitting end 900 may further include: a first determining unit 906a , a third determining unit 907 and a fourth determining unit 908 . Among them, the first determination unit 906 is used to determine the optimization coefficient group. For example, the first determining unit 906 is used to support S401 in the above-described embodiments, and/or other processes used in the techniques described herein. The third determining unit 907 is configured to determine the coding structure according to the configuration information of the base station. For example, the third determination unit 907 is used to support S601 in the above-described embodiments, and/or other processes used in the techniques described herein. The fourth determining unit 908 is configured to determine the transmission mode of the data according to the coding structure. For example, the fourth determination unit 908 is used to support S701 in the above-described embodiments, and/or other processes used in the techniques described herein.

When the sending end is a user equipment, as shown in FIG. 11 , the sending end 900 may further include: a receiving unit 906b , a second determining unit 906c , a third determining unit 907 and a fourth determining unit 908 . The receiving unit 906b is configured to receive the configuration information of the base station sent by the base station. For example, the receiving unit 906b, for supporting S401' in the above-described embodiments, and/or other processes for the techniques described herein. The second determining unit 906c is configured to determine the optimization coefficient group according to the configuration information of the base station. For example, the second determination unit 906c is used to support S402' in the above-described embodiments, and/or other processes used in the techniques described herein.

Certainly, the transmitting end 900 provided in this embodiment of the present invention includes but is not limited to the above-mentioned functional units. For example, the transmitting end 900 may further include a storage unit for storing the first group of bits and the second group of bits of the transmitting end.

In the case of using integrated units, the above-mentioned dividing unit 901, first processing unit 902, obtaining unit 903, selecting unit 904, first determining unit 906a (or second determining unit 906c), third determining unit 907 and fourth The determination unit 908 and the like may be integrated into a processing unit, which may be a processor or a controller, for example, a CPU, a general-purpose processor, a digital signal processor (English: Digital Signal Processor, DSP for short), a dedicated Integrated circuit (English: Application-Specific Integrated Circuit, referred to as: ASIC), Field Programmable Gate Array (English: Field Programmable Gate Array, referred to as: FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof . It may implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processing unit may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The sending unit 905 and the receiving unit 906b may be integrated into one communication unit, and the communication unit may be a communication interface, a transceiver circuit, a transceiver, or the like. The storage unit may be a memory.

When the foregoing processing unit is a processor, the storage unit is a memory, and the communication unit is a transceiver, the sending end 900 involved in the embodiment of the present invention may be the sending end 1200 shown in FIG. 12 . Referring to FIG. 12 , the transmitting end 1200 includes: one or more processors 1201 , a memory 1202 , a transceiver 1203 and a bus 1204 . Among them, one or more processors 1201 , memories 1202 and transceivers 1203 are connected to each other through a bus 1204 . The bus 1204 may be a Peripheral Component Interconnect (English: Peripheral Component Interconnect, referred to as: PCI) bus or an Extended Industry Standard Architecture (English: Extended Industry Standard Architecture, referred to as: EISA) bus or the like. The above-mentioned bus 1204 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 12, but it does not mean that there is only one bus or one type of bus.

Embodiments of the present invention further provide a computer-readable storage medium, where one or more program codes are stored in the computer-readable storage medium. When the processor 1201 of the sending end 1200 executes the program codes, the sending end 1200 executes the 2. Relevant method steps in any one of Figures 4-8.

Among them, the detailed description of each module or unit in the transmitting end 1200 provided in the embodiment of the present invention and the technical effect brought by each module or unit after performing the relevant method steps in any one of FIG. 2 and FIG. 4 to FIG. 8 Reference may be made to the related descriptions in the method embodiments of the present invention, which are not repeated here.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. For the specific working process of the system, apparatus and unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (11)

1. A method of data processing, comprising:

a sending end divides information to be sent into a first group of bits and a second group of bits;

the sending end carries out first processing on the first group of bits to obtain at least two modulation symbols;

the sending end obtains at least two groups of coding information based on the at least two modulation symbols and a first parameter set, wherein the first processing at least comprises modulation;

the second group of bits are used for the transmitting end to select at least one group of coded information from the at least two groups of coded information for transmission;

the first set of parameters comprises an optimized set of rotational coefficients and at least two sets of coding structures;

wherein the optimized rotation coefficient sets are predefined, and the different modulation modes correspond to different optimized rotation coefficient sets.

2. The method of claim 1,

the transmitting end is a base station, and the optimized rotation coefficient group is determined by the base station;

or,

the transmitting end is user equipment, and the optimized rotation coefficient group is determined by the user equipment according to the configuration information transmitted by the base station.

3. The method according to any one of claims 1-2,

the at least two sets of coding structures are predefined; or,

the at least two groups of coding structures are determined by the sending end according to the configuration information of the base station, and the sending end is the base station or the user equipment.

4. The method according to any one of claims 1-2, further comprising:

the sending end determines a sending mode of the data according to the coding structure;

when the sending end sends data by adopting the sending mode, the number of resources required by at least one antenna for sending the data is less than the total number of resources for sending the data of the at least one antenna.

5. A method of data processing, comprising:

a sending end divides information to be sent into a first group of bits and a second group of bits;

the sending end performs first processing on the first group of bits to obtain at least two modulation symbols, wherein the first processing at least comprises modulation; the second group of bits is used for the transmitting end to select at least one group of coding structures from at least two groups of coding structures;

the sending end obtains at least one group of coding information based on the at least two modulation symbols, the at least one group of coding structures and the first parameter set;

the sending end sends the at least one group of coded information;

the first set of parameters comprises an optimized set of rotation coefficients;

wherein the optimized rotation coefficient sets are predefined, and the different modulation modes correspond to different optimized rotation coefficient sets.

6. A transmitting end, comprising:

a dividing unit for dividing information to be transmitted into a first group of bits and a second group of bits;

a first processing unit, configured to perform first processing on the first group of bits obtained by the dividing unit to obtain at least two modulation symbols;

an obtaining unit, configured to obtain at least two groups of coded information based on the at least two modulation symbols and a first parameter set obtained by the first processing unit, where the first processing at least includes modulation;

a selecting unit, configured to select at least one set of coding information from the at least two sets of coding information obtained by the obtaining unit according to the second set of bits obtained by the dividing unit;

a transmitting unit configured to transmit the at least one set of encoded information selected by the selecting unit;

the first set of parameters comprises an optimized set of rotational coefficients and at least two sets of coding structures;

wherein the optimized rotation coefficient sets are predefined, and the different modulation modes correspond to different optimized rotation coefficient sets.

7. A transmitting end according to claim 6,

the sending end is a base station, and the sending end further comprises:

a first determination unit for determining the optimized rotation coefficient set;

or,

the sending end is a user equipment, and the sending end further comprises:

a receiving unit for receiving the configuration information of the base station transmitted by the base station,

a second determining unit, configured to determine the optimized rotation coefficient set according to the configuration information of the base station received by the receiving unit.

8. Transmitting end according to any of claims 6-7, characterized in that the coding structure is predefined;

or, the sending end further includes:

a third determining unit, configured to determine the coding structure according to configuration information of a base station, where the sending end is the base station or a user equipment.

9. The transmitting end according to any of claims 6-7, further comprising:

a fourth determining unit, configured to determine a data sending method according to the coding structure;

when the sending unit sends data in the sending mode determined by the fourth determining unit, the number of resources required by at least one antenna to send the data is less than the total number of resources for sending data of the at least one antenna.

10. A method of data processing, comprising:

a dividing unit for dividing information to be transmitted into a first group of bits and a second group of bits;

a first processing unit, configured to perform first processing on the first group of bits obtained by the dividing unit to obtain at least two modulation symbols, where the first processing at least includes modulation;

a selecting unit, configured to select at least one group of coding structures from at least two groups of coding structures according to the second group of bits obtained by the dividing unit;

an obtaining unit, configured to obtain at least one group of coding information based on the at least two modulation symbols obtained by the first processing unit, the at least one group of coding structures obtained by the selecting unit, and the first parameter set;

a sending unit, configured to send the at least one set of encoded information obtained by the obtaining unit;

wherein the first set of parameters comprises an optimized set of rotation coefficients;

wherein the optimized rotation coefficient sets are predefined, and the different modulation modes correspond to different optimized rotation coefficient sets.

11. A transmitting end, characterized in that the transmitting end comprises: one or more processors, memories, buses and transceivers;

the memory is used for storing computer-executable instructions, the processor is connected with the memory through the bus, and when the transmitting end runs, the processor executes the computer-executable instructions stored by the memory, so that the transmitting end executes the data processing method according to any one of claims 1 to 4 or 5.

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