CN109217999B - LTE network PUCCH channel pilot frequency method and equipment - Google Patents

Abstract

Embodiments of the present invention provide a PUCCH channel pilot method and device in an LTE network. The method includes that the user terminal obtains the current base sequence group according to the ID of the cell where it is located; performs pilot and/or spread spectrum processing on PUCCH channel data by using the current base sequence group, and sends the processed PUCCH channel data to the base station side. In this embodiment of the present invention, the base station and the user terminal can generate a consistent base sequence according to the cell ID, and calculate their own base sequence group according to the cell ID, so as to perform interference randomization processing on the pilot frequency and spreading sequence of the PUCCH. The acquired base sequence is dynamically generated according to the ID of the cell where the user terminal sends data each time, and does not need to be predefined or stored, which saves storage space and better improves the performance of the PUCCH channel.

Description

A kind of LTE network PUCCH channel pilot method and device

technical field

The present invention relates to the field of communication technologies, and more particularly, to a method and device for a PUCCH channel pilot in an LTE network.

Background technique

At present, Long Term Evolution (Long Term Evolution, LTE), as the mainstream technology of 4G, provides users with high-speed data transmission services. The uplink control channel PUCCH in LTE is used to transmit uplink control information. In LTE, there are mainly uplink physical control information such as scheduling request (SR), ACK/NAK, and CQI feedback, so the performance of the PUCCH channel is very important to the system.

In the existing LTE protocol, both the pilot frequency of the PUCCH channel and the base sequence of the spreading sequence are selected from a predefined sequence group, which requires a large storage space and reduces the performance of the PUCCH channel.

SUMMARY OF THE INVENTION

The present invention provides a PUCCH channel pilot method and device for an LTE network that overcomes the above problems or at least partially solves the above problems.

According to an aspect of the present invention, there is provided a PUCCH channel pilot method in an LTE network, comprising:

Obtain the current base sequence group according to the ID of the cell where it is located;

Pilot and/or spread spectrum processing is performed on the PUCCH channel data by using the current base sequence group, and the processed PUCCH channel data is sent to the base station side.

According to another aspect of the present invention, there is also provided a PUCCH channel pilot method in an LTE network, including:

Obtain the current base sequence group according to the ID of the cell where the user terminal sending the PUCCH channel data is located;

The PUCCH channel data is decoded using the current base sequence set.

According to another aspect of the present invention, a user terminal is also provided, comprising:

at least one processor; and

at least one memory communicatively coupled to the processor, wherein:

The memory stores program instructions that can be executed by the processor, and the processor invokes the program instructions to be able to execute the user terminal-side method of the LTE network PUCCH channel pilot method described in the embodiment of the present invention and all its executables. method of choosing an embodiment.

According to another aspect of the present invention, a non-transitory computer-readable storage medium is also provided, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the embodiments of the present invention. An LTE network PUCCH channel pilot method user terminal side method and methods of all optional embodiments thereof.

According to another aspect of the present invention, a base station is also provided, comprising:

at least one processor; and

at least one memory communicatively coupled to the processor, wherein:

The memory stores program instructions that can be executed by the processor, and the processor invokes the program instructions to be able to execute an LTE network PUCCH channel pilot method according to the embodiment of the present invention, the base station side method and all options thereof. Methods of Examples.

According to another aspect of the present invention, a non-transitory computer-readable storage medium is also provided, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the embodiments of the present invention. An LTE network PUCCH channel pilot method base station side method and methods of all optional embodiments thereof.

The present invention proposes a PUCCH channel pilot method and device in an LTE network. The base station and the user terminal can respectively generate a consistent base sequence according to the cell ID, and calculate the base sequence group in which they are located according to the cell ID, so as to guide the PUCCH. Frequency and spreading sequence for interference randomization. The acquired base sequence is dynamically generated according to the ID of the cell where the user terminal sends data each time, and does not need to be predefined or stored, which saves storage space and better improves the performance of the PUCCH channel.

Description of drawings

1 is a sequence diagram of a PUCCH channel pilot method in an LTE network according to an embodiment of the present invention;

2 is a schematic diagram of a transmission frame format of an LTE system of a power system communication network according to an embodiment of the present invention;

3 is a schematic diagram of a first mapping format of an LTE system of a power system communication network according to an embodiment of the present invention;

4 is a schematic diagram of a second mapping format of an LTE system of a power system communication network according to an embodiment of the present invention;

5 is a structural block diagram of a user terminal according to an embodiment of the present invention;

FIG. 6 is a structural block diagram of a base station according to an embodiment of the present invention.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

As shown in FIG. 1 , an embodiment of the present invention provides a PUCCH channel pilot method in an LTE network, which is characterized in that, the method includes:

Obtain the current base sequence group according to the ID of the cell where it is located;

Pilot and/or spread spectrum processing is performed on the PUCCH channel data by using the current base sequence group, and the processed PUCCH channel data is sent to the base station side.

The method for piloting a PUCCH channel in an LTE network according to the embodiment of the present invention is a method on the side of a user terminal, and its execution subject is a user terminal. Before sending PUCCH channel data each time, the user terminal dynamically obtains the current base sequence group according to the ID of the cell where it is currently located; the current base sequence group is only valid for the current transmission data of the user terminal, so it does not need to be saved, because When the user terminal sends data next time, the user terminal may move to another cell, and the cell ID changes, and the user terminal needs to obtain a new base sequence group according to the new cell ID.

After acquiring the current base sequence group each time, the user terminal performs pilot and/or spread spectrum processing on the PUCCH channel data by using the current base sequence group and sends the data to the base station side. Correspondingly, after receiving the PUCCH channel data sent by the user terminal, or after predicting that the PUCCH channel data of the user terminal will be received, the base station side dynamically generates the target data according to the ID of the cell where the user terminal is located according to the exact same method as the user terminal side. The base sequence of the current PUCCH channel data, and the generated base sequence is used to decode the current PUCCH channel data, so as to realize the transmission and reception of the PUCCH channel data.

In this embodiment of the present invention, the base station and the user terminal can generate a consistent base sequence according to the cell ID, and calculate their own base sequence group according to the cell ID, so as to perform interference randomization processing on the pilot frequency and spreading sequence of the PUCCH. The acquired base sequence is dynamically generated according to the ID of the cell where the user terminal sends data each time, and does not need to be predefined or stored, which saves storage space and better improves the performance of the PUCCH channel.

In an optional embodiment, the obtaining the current base sequence group according to the ID of the cell where it is located, further includes:

Based on the transmission frame format of the LTE system, a different group hopping sequence number is allocated to each PUCCH symbol group or each time slot, and a different cyclic shift factor is allocated to each PUCCH symbol group or different symbols within each time slot, Combined with the cell ID, obtain the current base sequence group of each PUCCH symbol group or each time slot.

In the embodiment of the present invention, different group hopping sequence numbers are used to calculate the base sequence group of the base sequence of each PUCCH symbol group or each time slot, so as to reduce the interference between PUCCH symbol groups or time slots; different cyclic shift factors are used. Cyclic frequency hopping is performed on unused symbols within each PUCCH symbol group or different symbols within each time slot to reduce inter-symbol interference.

The transmission frame format of the LTE system according to the embodiment of the present invention includes the transmission frame format of the public network LTE system and the transmission frame format of different proprietary LTE systems.

Among them, in the transmission frame format of the public network LTE system, one radio frame includes 10 subframes, and each subframe includes two time slots, that is, one radio frame includes 20 time slots. Each downlink time slot is further divided into several OFDM symbols, and according to the length of the CP, the number of OFDM symbols included is also different. When using conventional CP, one downlink time slot contains 7 OFDM symbols; when using extended CP, one downlink time slot contains 6 OFDM symbols. When the method described in this embodiment of the present invention is applied to the public network LTE system, the group hopping sequence number is allocated in units of time slots, that is, each time slot of each radio frame of the public network LTE system is allocated a different group hopping sequence to reduce the Signal interference between time slots.

Among them, the transmission frame format of the proprietary LTE system, the implementation of the present invention enumerates a transmission format of the power system communication network LTE system, including: a radio frame includes 5 subframes; a subframe includes 9 OFDM symbols in the time domain. The frequency domain includes 11 subcarriers; an OFDM symbol in the time domain is 1/9 of a subframe, and includes 11 subcarriers in the frequency domain, and each subcarrier occupies a 2Khz bandwidth in the frequency domain. As shown in Figure 2, the number of subframes in each radio frame is 5, including subframe 0, subframe 1, subframe 2, subframe 3 and subframe 4. The 5 subframes include downlink data resources, SR (Scheduling Request, uplink scheduling request) resource and uplink resource. When the method described in the embodiment of the present invention is applied to an LTE system of a power system communication network, the group hopping sequence number is allocated in units of PUCCH symbol groups, that is, a different group hopping sequence is allocated for each PUCCH symbol group of each radio frame , to reduce signal interference between PUCCH symbol groups.

Specifically, a PUCCH symbol group of a power system communication network LTE system enumerated in the implementation of the present invention includes three mapping formats, namely a first mapping format, a second mapping format, and a third mapping format, and different mapping formats occupy different resources. , and different mapping formats can be selected according to the transmission distance and the channel environment.

The first mapping format is:

Based on one radio frame, the PUCCH occupies four OFDM symbols of one uplink subframe of the one radio frame, and the four OFDM symbols form a PUCCH symbol group, as shown in FIG. 3 .

The second mapping format is:

Based on one radio frame, the PUCCH occupies three uplink subframes of the one radio frame; every four OFDM symbols of the three uplink subframes constitute a PUCCH symbol group, and 7 PUCCH symbol groups are obtained, as shown in Figure 4 .

The third mapping format is:

Based on two radio frames, PUCCH occupies three uplink subframes of each radio frame; every four OFDM symbols of the three uplink subframes of each radio frame constitute a PUCCH symbol group, and 14 PUCCH symbol groups are obtained, It includes two radio frames as shown in FIG. 4 .

Whether it is the transmission frame format of the public network LTE system or the transmission frame format of the proprietary LTE system, each symbol in each time slot or in each PUCCH symbol group is frequency hopped by a cyclic shift factor, so that the time Inter-symbol interference within a slot or within a PUCCH symbol group is further reduced.

Corresponding to the above-mentioned current base sequence group of each PUCCH symbol group or each time slot, in an optional embodiment, the data of the PUCCH channel is piloted and/or performed using the current base sequence group. Spread spectrum processing, further including:

Based on the current base sequence group of each PUCCH symbol group or each time slot, pilot and/or spread spectrum processing is performed on the data of the corresponding PUCCH symbol group or the data of the corresponding time slot on the PUCCH channel.

Since each PUCCH symbol group or each time slot in the embodiment of the present invention has a different base sequence group, when the user terminal performs pilot and/or spread spectrum processing on PUCCH channel data, according to each PUCCH channel data The data of the PUCCH symbol group or the data of each time slot is processed by using the base sequence of the corresponding PUCCH symbol group or time slot.

In an optional embodiment, the current base sequence group of each PUCCH symbol group or each time slot can be obtained by the following formula

in,

为PUCCH解调参考信号的长度，也即PUCCH解调参考信号在频域占用的子载波数；

is the length of the PUCCH demodulation reference signal, that is, the number of subcarriers occupied by the PUCCH demodulation reference signal in the frequency domain;

为PUCCH解调参考信号对应的ZC序列的长度，且q通过下式产生：q＝floor(q0+1/2)，其中

为小于等于

的最大质数；The Zadoff-Chu sequence of the qth root is

is the length of the ZC sequence corresponding to the PUCCH demodulation reference signal, and q is generated by the following formula: q=floor(q0+1/2), where

is less than or equal to

the largest prime number;

u is the group hop sequence number, and u=(f _gh (n _group )+f _ss )mod K(0,1,...,K-1), where,

具体的，在随机化本小区的干扰时组跳打开，否则组跳禁用；K为一个跳频组能支持的小区数，K可取小于

的正整数；

为小区ID，n_group为PUCCH符号组数或时隙数的取值范围；

Specifically, group hopping is enabled when randomizing the interference of the local cell, otherwise group hopping is disabled; K is the number of cells that a frequency hopping group can support, and K may be less than

positive integer of ;

is the cell ID, and n _group is the value range of the number of PUCCH symbol groups or the number of time slots;

c(i) is a pseudo-random sequence, initialized in the first uplink subframe of each radio frame

当应用于公网LTE系统时，可根据当前公网LTE系统的子载波数确定

的值。When the method for estimating the current base sequence group in the embodiment of the present invention is applied to the LTE system of the power system communication network according to the embodiment of the present invention, since the number of subcarriers in each OFDM symbol is 11, so

When applied to the public network LTE system, it can be determined according to the number of subcarriers in the current public network LTE system

value of .

Specifically, since the PUCCH symbol group of the LTE system of the power system communication network according to the embodiment of the present invention has three mapping formats, corresponding to the first mapping format, the number of PUCCH symbol groups is 1, and the n _group is 0; In the second mapping format, the number of PUCCH symbol groups is 7, and the range of n _group is 0 to 6; corresponding to the third mapping format, the number of PUCCH symbol groups is 14, and the range of n _group is 0 to 13. When applied to the public network LTE system, the value of n _group can be determined according to the range of time slots of the current public network LTE system. For example, when a radio frame includes 20 time slots, the range of n _group is 0 to 19.

Among them, the c(i) pseudo-random sequence is defined by a Gold sequence of length 31, and the output sequence c(n) of length M _PN is defined as

c(n)=(x ₁ (n+ _NC )+x ₂ (n+ _NC ))mod2

x ₁ (n+31)=(x ₁ (n+3)+x ₁ (n))mod2

x ₂ (n+31)=(x ₂ (n+3)+x ₂ (n+2)+x ₂ (n+1)+x ₂ (n))mod2

进行初始化，并且初始化的值与该序列的应用有关。where _NC = 1600, the first m-sequence is initialized by x ₁ (0)=1, x ₁ (n)=0, n=1, 2, ..., 30, and the second m-sequence is given by

Initialization is performed, and the initialized value is related to the application of the sequence.

In an optional embodiment, the allocation of different cyclic shift factors α to each PUCCH symbol group or to different symbols within each time slot is:

in,

为PUCCH解调参考信号的长度；n_group为PUCCH符号组数或时隙数的取值范围；l为PUCCH解调参考符号映射到资源块RB的符号索引，l＝1,2；

is the length of the PUCCH demodulation reference signal; n _group is the value range of the number of PUCCH symbol groups or the number of time slots; l is the symbol index of the PUCCH demodulation reference symbol mapped to the resource block RB, l=1, 2;

为小区ID。此处的c伪随机序列与上述实施例中的c(i)伪随机序列的含义相同。c is a pseudo-random sequence, initialized at the beginning of each radio frame as

is the cell ID. The c pseudo-random sequence here has the same meaning as the c(i) pseudo-random sequence in the above embodiment.

In an optional embodiment, the performing pilot and/or spreading processing on the data of the PUCCH channel by using the current base sequence group includes:

Pilot and/or spread spectrum processing is performed using:

为PUCCH的解调参考信号，

为PUCCH符号组或时隙的当前基序列组，

为PUCCH解调参考信号的长度，α为循环移位因子，j表示复数。in,

is the demodulation reference signal of PUCCH,

is the current base sequence group of the PUCCH symbol group or slot,

is the length of the PUCCH demodulation reference signal, α is a cyclic shift factor, and j is a complex number.

Referring to FIG. 1, an embodiment of the present invention further provides a PUCCH channel pilot method for an LTE network, including:

The current base sequence group is obtained according to the cell ID of the user terminal that transmits the PUCCH channel data; and the PUCCH channel data is decoded by using the current base sequence group.

The method for piloting a PUCCH channel of an LTE network according to the embodiment of the present invention is a method on the base station side. After receiving the PUCCH channel data sent by the user terminal, or after predicting that the PUCCH channel data of the user terminal will be received, the base station side dynamically generates the PUCCH for this time according to the same method as the user terminal side and according to the ID of the cell where the user terminal is located. The base sequence of the channel data, and the generated base sequence is used to decode the current PUCCH channel data. This embodiment of the present invention does not limit the specific time sequence for generating the base sequence group by the base station, as long as the base sequence group can be obtained before the base station decodes the PUCCH channel data and needs to use it.

The processing methods on the base station side described in the following embodiments are in one-to-one correspondence with the user terminal side. For the specific description, please refer to the relevant description on the user terminal side, which will not be repeated here.

In an optional embodiment, the obtaining the current base sequence group according to the ID of the cell where the user terminal that sends the PUCCH channel data is located, further includes:

Based on the transmission frame format of the LTE system, a different group hopping sequence number is allocated to each PUCCH symbol group or each time slot, and a different cyclic shift factor is allocated to each PUCCH symbol group or different symbols within each time slot, Combined with the cell ID, the current base sequence group of each PUCCH symbol group or each time slot is calculated.

In an optional embodiment, the current base sequence group of each PUCCH symbol group or each time slot is calculated by the following formula

为PUCCH解调参考信号的长度，也即PUCCH解调参考信号在频域占用的子载波数；in,

is the length of the PUCCH demodulation reference signal, that is, the number of subcarriers occupied by the PUCCH demodulation reference signal in the frequency domain;

为PUCCH解调参考信号对应的ZC序列的长度，且q通过下式产生：q＝floor(q0+1/2)，其中

The Zadoff-Chu sequence of the qth root is

is the length of the ZC sequence corresponding to the PUCCH demodulation reference signal, and q is generated by the following formula: q=floor(q0+1/2), where

u is the group hop sequence number, and u=(f _gh (n _group )+f _ss )mod K(0,1,...,K-1), where,

为小区ID，n_group为PUCCH符号组数或时隙数的取值范围；K为一个跳频组能支持的小区数，可以取小于

的正整数；

is the cell ID, n _group is the value range of the number of PUCCH symbol groups or the number of time slots; K is the number of cells that a frequency hopping group can support, which can be less than

positive integer of ;

c(i) is a pseudo-random sequence, initialized in the first uplink subframe of each radio frame

In an optional embodiment, the allocation of different cyclic shift factors α to each PUCCH symbol group or to different symbols within each time slot is:

in,

为PUCCH解调参考信号的长度；n_group为PUCCH符号组数或时隙数的取值范围；l为PUCCH解调参考符号映射到资源块RB的符号索引，l＝1,2；

is the length of the PUCCH demodulation reference signal; n _group is the value range of the number of PUCCH symbol groups or the number of time slots; l is the symbol index of the PUCCH demodulation reference symbol mapped to the resource block RB, l=1, 2;

为小区ID。c is a pseudo-random sequence, initialized at the beginning of each radio frame as

is the cell ID.

The method for generating a base sequence group on the base station side described in the above embodiments is exactly the same as that on the user terminal side, so it can be completely matched with the PUCCH channel data sent by the user terminal side. Perform reverse processing of pilot and/or spread spectrum for each PUCCH symbol group or each time slot, and perform reverse processing on each symbol or each time slot within each PUCCH symbol group of the PUCCH channel data according to the cyclic shift factor α Each internal symbol undergoes reverse frequency hopping processing to complete decoding.

In the PUCCH channel pilot method of the LTE network according to the embodiment of the present invention, the base station and the user terminal respectively generate a consistent base sequence according to the cell ID, and calculate the base sequence group in which they are located according to the cell ID, so as to determine the base sequence of the PUCCH. The pilot and spreading sequences are subjected to interference randomization. The acquired base sequence is dynamically generated according to the ID of the cell where the user terminal sends data each time, and does not need to be predefined or stored, which saves storage space and better improves the performance of the PUCCH channel.

FIG. 5 shows a structural block diagram of a user terminal according to an embodiment of the present invention.

5, the user terminal includes: a processor (processor) 501, a memory (memory) 502 and a bus 503;

Wherein, the processor 501 and the memory 502 communicate with each other through the bus 503;

The processor 501 is configured to invoke the program instructions in the memory 502 to execute the methods provided by the user terminal side method embodiments of the above-mentioned LTE network PUCCH channel pilot method, for example, including: obtaining the current cell ID according to the cell ID where it is located. Base sequence group; perform pilot and/or spread spectrum processing on PUCCH channel data by using the current base sequence group, and send the processed PUCCH channel data to the base station side.

Another embodiment of the present invention discloses a computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer When , the computer can execute the methods provided by the user terminal side methods of the above-mentioned LTE network PUCCH channel pilot method, for example, including: obtaining the current base sequence group according to the ID of the cell where it is located; The data is subjected to pilot and/or spread spectrum processing, and is sent to the base station side, and the processed PUCCH channel data.

Another embodiment of the present invention provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the above-mentioned LTE network PUCCH channel pilot method. The methods provided by the embodiments of the terminal-side method include, for example: obtaining the current base sequence group according to the ID of the cell where it is located; performing pilot and/or spread spectrum processing on PUCCH channel data by using the current base sequence group, and reporting to the base station side The processed PUCCH channel data is sent.

FIG. 6 shows a structural block diagram of a base station according to an embodiment of the present invention.

6, the base station includes: a processor (processor) 601, a memory (memory) 602, and a bus 603;

Wherein, the processor 601 and the memory 602 communicate with each other through the bus 603;

The processor 601 is configured to invoke the program instructions in the memory 602 to execute the methods provided by the base station side methods of the above-mentioned LTE network PUCCH channel pilot method, for example, including: according to the location of the user terminal sending the PUCCH channel data The cell ID of the current base sequence group is obtained, and the PUCCH channel data of the current base sequence group is used for decoding.

Another embodiment of the present invention discloses a computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer , the computer can execute the methods provided by the above-mentioned LTE network PUCCH channel pilot method embodiments of the base station side methods, for example, including: obtaining the current base sequence group according to the ID of the cell where the user terminal sending the PUCCH channel data is located; using the current base sequence group The base sequence sets the PUCCH channel data for decoding.

Another embodiment of the present invention provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the above-mentioned LTE network PUCCH channel pilot method base station The method provided by each embodiment of the side method, for example, includes: obtaining the current base sequence group according to the ID of the cell where the user terminal sending PUCCH channel data is located; and decoding the PUCCH channel data using the current base sequence group.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

The above-described embodiments such as a user terminal and a base station are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may be or may also be It may not be a physical unit, that is, it may be located in one place, or it may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic A disc, an optical disc, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments or some parts of the embodiments.

Finally, the method of the present invention is only a preferred embodiment, and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (12)

1. a LTE network PUCCH channel pilot method, is characterized in that, comprises: Obtain the current base sequence group according to the ID of the cell where it is located; Perform pilot and/or spread spectrum processing on the PUCCH channel data by using the current base sequence group, and send the processed PUCCH channel data to the base station side; The obtaining of the current base sequence group according to the ID of the cell where it is located, further includes: Based on the transmission frame format of the LTE system, a different group hopping sequence number is allocated to each PUCCH symbol group or each time slot, and a different cyclic shift factor is allocated to each PUCCH symbol group or different symbols within each time slot, In combination with the cell ID, obtain the current base sequence group of each PUCCH symbol group or each time slot, wherein the PUCCH symbol group includes a first mapping format, a second mapping format and a third mapping format, the first mapping format The mapping format is: Based on one radio frame, the PUCCH occupies four OFDM symbols of one uplink subframe of the one radio frame, and the four OFDM symbols form one PUCCH symbol group; The second mapping format is: based on one radio frame, the PUCCH occupies three uplink subframes of the one radio frame; every 4 OFDM symbols of the three uplink subframes constitute a PUCCH symbol group, and 7 PUCCHs are obtained symbol group; The third mapping format is: based on two radio frames, PUCCH occupies three uplink subframes of each radio frame; every four OFDM symbols of the three uplink subframes of each radio frame constitute a PUCCH symbol group , 14 PUCCH symbol groups are obtained. 2. The method according to claim 1, wherein the performing pilot and/or spread spectrum processing on the data of the PUCCH channel by using the current base sequence group, further comprises: Based on the current base sequence group of each PUCCH symbol group or each time slot, pilot and/or spread spectrum processing is performed on the data of the corresponding PUCCH symbol group on the PUCCH channel or the data of the corresponding time slot on the PUCCH channel. 3. The method according to claim 1 or 2, wherein the current base sequence group of each PUCCH symbol group or each time slot is obtained by the following formula

in,

is the length of the PUCCH demodulation reference signal; The Zadoff-Chu sequence of the qth root is

is the length of the ZC sequence corresponding to the PUCCH demodulation reference signal, and q is generated by the following formula: q=floor(q0+1/2), where

u is the group hop sequence number, and u=(f _gh (n _group )+f _ss )mod K(0,1,...,K-1), where,

is the cell ID, n _group is the value range of the number of PUCCH symbol groups or time slots; K is the number of cells that a frequency hopping group can support, and the value of K is less than

positive integer of ; c(i) is a pseudo-random sequence, which is initialized in the first uplink subframe of each radio frame as

4 . The method according to claim 3 , wherein, different cyclic shift factors α are allocated to each PUCCH symbol group or to different symbols in each time slot as follows: 5 .

in,

is the length of the PUCCH demodulation reference signal; n _group is the value range of the number of PUCCH symbol groups or the number of time slots; l is the symbol index of the PUCCH demodulation reference symbol mapped to the resource block RB, l=1, 2; c is a pseudo-random sequence, initialized at the beginning of each radio frame as

is the cell ID. 5. The method according to claim 4, wherein the performing pilot and/or spread spectrum processing on the data of the PUCCH channel by using the current base sequence group comprises: Pilot and/or spread spectrum processing is performed using:

in,

is the demodulation reference signal of PUCCH,

is the current base sequence group of the PUCCH symbol group or slot,

is the length of the PUCCH demodulation reference signal, α is a cyclic shift factor, and j is a complex number. 6. An LTE network PUCCH channel pilot method, characterized in that, comprising: Obtain the current base sequence group according to the ID of the cell where the user terminal sending the PUCCH channel data is located; decoding the PUCCH channel data using the current base sequence set; The obtaining the current base sequence group according to the ID of the cell where the user terminal that sends the PUCCH channel data is located, further includes: Based on the transmission frame format of the LTE system, a different group hopping sequence number is allocated to each PUCCH symbol group or each time slot, and a different cyclic shift factor is allocated to each PUCCH symbol group or different symbols within each time slot, Combining the cell ID, calculate the current base sequence group of each PUCCH symbol group or each time slot, wherein the PUCCH symbol group includes a first mapping format, a second mapping format and a third mapping format, and the first mapping format A mapping format is: Based on one radio frame, the PUCCH occupies four OFDM symbols of one uplink subframe of the one radio frame, and the four OFDM symbols form one PUCCH symbol group; The second mapping format is: based on one radio frame, the PUCCH occupies three uplink subframes of the one radio frame; every 4 OFDM symbols of the three uplink subframes constitute a PUCCH symbol group, and 7 PUCCHs are obtained symbol group; The third mapping format is: based on two radio frames, PUCCH occupies three uplink subframes of each radio frame; every four OFDM symbols of the three uplink subframes of each radio frame constitute a PUCCH symbol group , 14 PUCCH symbol groups are obtained. 7. The method according to claim 6, wherein the current base sequence group of each PUCCH symbol group or each time slot is calculated by the following formula

in,

is the length of the PUCCH demodulation reference signal; The Zadoff-Chu sequence of the qth root is

is the length of the ZC sequence corresponding to the PUCCH demodulation reference signal, and q is generated by the following formula: q=floor(q0+1/2), where

u is the group hop sequence number, and u=(f _gh (n _group )+f _ss )mod K(0,1,...,K-1), where,

is the cell ID, n _group is the value range of the number of PUCCH symbol groups or time slots; K is the number of cells that a frequency hopping group can support, and the value of K is less than

is a positive integer; c(i) is a pseudo-random sequence, which is initialized in the first uplink subframe of each radio frame as

8. The method according to claim 7, wherein the different cyclic shift factors α allocated to each PUCCH symbol group or to different symbols in each time slot are:

in,

is the length of the PUCCH demodulation reference signal; n _group is the value range of the number of PUCCH symbol groups or the number of time slots; l is the symbol index of the PUCCH demodulation reference symbol mapped to the resource block RB, l=1, 2; c is a pseudo-random sequence, initialized at the beginning of each radio frame as

is the cell ID. 9. A user terminal, comprising: at least one processor; and at least one memory communicatively coupled to the processor, wherein: The memory stores program instructions executable by the processor, and the processor invokes the program instructions to perform the method as claimed in any one of claims 1 to 5. 10. A non-transitory computer-readable storage medium, characterized in that the non-transitory computer-readable storage medium stores computer instructions, the computer instructions cause the computer to execute any one of claims 1 to 5. Methods. 11. A base station, comprising: at least one processor; and at least one memory communicatively coupled to the processor, wherein: The memory stores program instructions executable by the processor, the processor calling the program instructions to be able to perform the method as claimed in any one of claims 6 to 8. 12. A non-transitory computer-readable storage medium, characterized in that, the non-transitory computer-readable storage medium stores computer instructions, the computer instructions cause the computer to execute any one of claims 6 to 8 Methods.

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