WO2022028138A1

WO2022028138A1 - Uplink channel transmission method, terminal, base station, and storage medium

Info

Publication number: WO2022028138A1
Application number: PCT/CN2021/101512
Authority: WO
Inventors: 司倩倩; 王磊; 高雪娟
Original assignee: 大唐移动通信设备有限公司
Priority date: 2020-08-07
Filing date: 2021-06-22
Publication date: 2022-02-10
Also published as: CN114071475A

Abstract

Provided in the embodiments of the present disclosure are an uplink channel transmission method, a terminal, a base station, and a storage medium, the method comprising: after determining to use a precoding matrix to switch diversified transmission of an uplink channel, dividing resources for transmitting the uplink channel into at least two resource groups, and, on the basis of the precoding matrix, mapping each resource group to an antenna set by means of precoding, the antenna sets comprising a plurality of physical antennas or a plurality of antenna ports; and perform diversified transmission of the uplink channel by means of the antenna sets. The embodiments of the present disclosure improve the transmission performance of an uplink channel by dividing the resources for transmitting the uplink channel into at least two resource groups, mapping each resource group to an antenna set by means of precoding, and performing diversified transmission of the uplink channel by means of the antenna sets. For cell edge users, the transmission performance of an uplink channel is still good when the channel conditions are poor, thus meeting coverage needs.

Description

Transmission method, terminal, base station and storage medium for uplink channel

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 2020107884687 filed on August 07, 2020, and the invention title is "Transmission Method, Terminal, Base Station and Storage Medium for Uplink Channel", which is fully incorporated herein by reference .

technical field

The present disclosure relates to the field of communication technologies, and in particular, to an uplink channel transmission method, a terminal, a base station, and a storage medium.

Background technique

The uplink channel is used for the terminal to send information to the base station. For example, the uplink control channel is used for the terminal to send scheduling request SR (Scheduling Request), HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request) feedback to the base station, and channel status information CSI (Channel Status Information) and other information.

However, the existing uplink channel in NR uses a single antenna for transmission. For cell edge users, the transmission performance of the uplink channel is poor when the channel conditions are poor, and the coverage requirement may not be met.

Therefore, how to propose a method for improving the transmission performance of the uplink channel has become an urgent problem to be solved.

SUMMARY OF THE INVENTION

Embodiments of the present disclosure provide an uplink channel transmission method, a terminal, a base station, and a storage medium, so as to solve the defect of the prior art that the transmission performance of the uplink channel is poor when the condition of the single-antenna transmission channel is poor, and the coverage requirement cannot be met, It is realized to improve the transmission performance of the uplink channel.

In a first aspect, an embodiment of the present disclosure provides a method for transmitting an uplink channel, including:

After determining that the uplink channel is sent using the precoding matrix switching diversity, the resources used for transmitting the uplink channel are divided into at least two resource groups, and each resource group is mapped to the antenna set by precoding based on the precoding matrix; the antenna set includes multiple physical antennas or multiple antenna ports;

The uplink channel is transmitted in diversity through the set of antennas.

Optionally, according to a method for transmitting an uplink channel according to an embodiment of the present disclosure, the dividing the resources for transmitting the uplink channel into at least two resource groups includes:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of divisions in the time domain and the number of divisions in the frequency domain; or

Based on the determined number of resource groups, the resources used for transmitting uplink channels are divided into at least two resource groups; wherein, the number of resource groups is predefined or notified by the base station; and, each resource group The occupied resources are determined based on the uplink channel resources and the number of resource groups.

Optionally, according to the method for transmitting an uplink channel according to an embodiment of the present disclosure, based on the number of the resources used for transmitting the uplink channel divided in the time domain and the number of divisions in the frequency domain, the The resources used to transmit uplink channels are divided into at least two resource groups, including:

determining that the resources used for transmitting uplink channels are divided into a preset number X in the time domain, and determining that the resources used for transmitting uplink channels are divided into a preset number Y in the frequency domain;

based on the preset number X and the preset number Y, dividing the resources for transmitting the uplink channel to obtain at least two resource groups;

Wherein, X is a predefined value or a value notified by the base station or a value determined based on the number of demodulation reference signal DMRS (Demodulation Reference Signal) symbols and/or an uplink channel format, and Y is a predefined value or a value notified by the base station Or a value determined based on the number of resource blocks RB (Resource Block, resource blocks) included in the uplink channel.

Optionally, according to an uplink channel transmission method according to an embodiment of the present disclosure, the method further includes:

If the uplink channel is configured for repeated transmission, the value of X is determined to be an integer value less than or equal to the number of repeated transmissions A on the uplink channel, or an even multiple of the number of repeated transmissions of the uplink channel.

Optionally, according to the method for transmitting an uplink channel according to an embodiment of the present disclosure, the determined number of resource groups is a small value between the first number and the second number;

The first number is the preset number Z of resource groups, and the second number is based on the number N of DMRS symbols included in the uplink channel, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel Sure.

Optionally, according to the method for transmitting an uplink channel according to an embodiment of the present disclosure, the second number is calculated and determined according to the following formula, the second number=min(N, x)*A*B, where the value of x is The value is 2 or 4;

If the determined number of resource groups is the second number, each RB of the uplink channel in each uplink channel repetition time slot includes min(N, x) resource groups, and each resource group contains min(N, x) resource groups. Contains one RB and N/x DMRS symbols.

Optionally, according to the method for transmitting an uplink channel according to an embodiment of the present disclosure, the dividing the resources used for transmitting the uplink channel into at least two resource groups further includes:

If the determined number of resource groups is the first number, the repeated transmission is first divided into different resource groups, then different RBs are divided into different resource groups, and then the resources in each RB are divided into different resource groups In the order of , the resources used for transmitting the uplink channel are divided into Z resource groups.

Optionally, according to an uplink channel transmission method according to an embodiment of the present disclosure, the mapping of each resource group to an antenna set through precoding based on a precoding matrix includes:

The precoding is digital domain precoding or analog precoding, the digital domain precoding is mapped to the antenna set through a precoding matrix, and the analog precoding is mapped to the antenna set through spatial domain related information.

Optionally, according to the method for transmitting an uplink channel according to an embodiment of the present disclosure, the precoding matrix is randomly selected in at least two resource groups, or the precoding matrix is based on a predefined Use sequentially.

Optionally, according to an uplink channel transmission method according to an embodiment of the present disclosure, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Optionally, according to an uplink channel transmission method according to an embodiment of the present disclosure, the determining to use precoding matrix switching diversity to transmit the uplink channel includes:

Based on the instructions of the base station or the stipulations of the protocol, when a common cyclic prefix is used, it is determined to only use the transmit diversity of precoding matrix switching for the uplink channel with a length of 10 to 14 symbols; or

Based on the instruction of the base station or the stipulations of the protocol, when the extended cyclic prefix is used, it is determined to only use the transmit diversity of the precoding matrix switching for the uplink channel with the length of 10 to 12 symbols; or

Based on the instructions of the base station or the provisions of the protocol, determine the transmit diversity using precoding matrix switching only for a specific uplink channel format; or

Based on the instruction of the base station or the stipulation of the protocol, only for the uplink channel with frequency hopping in the time slot, the transmit diversity using the precoding matrix switching is determined.

In a second aspect, an embodiment of the present disclosure further provides a method for transmitting an uplink channel, including: after determining that the terminal uses precoding matrix switching diversity to transmit the uplink channel, dividing the resources used for transmitting the uplink channel into at least two resource groups ;

The uplink channel sent by the terminal is received based on the at least two resource group sets; wherein, the uplink channel is that the terminal divides the resources used for transmitting the uplink channel into at least two resource groups, and is based on After the precoding matrix maps each resource group to an antenna set through precoding, it is sent through the antenna set diversity; the antenna set includes multiple physical antennas or multiple antenna ports.

Based on the determined number of resource groups, the resources used for transmitting the uplink channel are divided into at least two resource groups; wherein the number of resource groups is predefined or set by the base station, and accordingly, the resource is sent to the terminal. The number of the set resource groups, so that the terminal divides the resources for transmitting the uplink channel into at least two resource groups based on the number of the resource groups; and, the resources occupied by each resource group are based on the uplink channel. The number of channel resources and resource groups is determined.

Wherein, X is a predefined value, or a value determined based on the number of demodulation reference signal DMRS symbols and/or uplink channel format, or a value set by the base station, correspondingly, the set value of X is sent to the terminal to enable the terminal to determine the The resources used to transmit the uplink channel are divided into a preset number X in the time domain; Y is a predefined value, or a value determined based on the number of resource blocks RB included in the uplink channel, or a value set by the base station, correspondingly, to the terminal The set value of Y is sent, so that the terminal determines that the resource for transmitting the uplink channel is divided into a preset number Y in the frequency domain.

Optionally, according to a method for transmitting an uplink channel according to an embodiment of the present disclosure, the determining that the terminal uses the precoding matrix switching diversity to send the uplink channel includes:

Determine the terminal based on the provisions of the protocol or instruct the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 14 symbols when using a common cyclic prefix; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 12 symbols when the extended cyclic prefix is used; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to determine transmit diversity using precoding matrix switching only for a specific uplink channel format; or

It is determined that the terminal determines the transmit diversity using precoding matrix switching based on the provisions of the protocol or instructing the terminal to only use the uplink channel of frequency hopping in the time slot.

Optionally, according to an uplink channel transmission method according to an embodiment of the present disclosure, after receiving the uplink channel sent by the terminal based on the at least two resource group sets, the method further includes:

Independent channel estimation is performed for the at least two resource groups.

In a third aspect, an embodiment of the present disclosure further provides a terminal, including:

The first division module is configured to divide the resources used for transmitting the uplink channel into at least two resource groups after determining that the uplink channel is sent using the precoding matrix switching diversity, and precoding each resource group based on the precoding matrix Mapped to an antenna set; the antenna set includes multiple physical antennas or multiple antenna ports;

A sending module, configured to send the uplink channel in diversity through the antenna set.

In a fourth aspect, an embodiment of the present disclosure further provides a terminal, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the following steps when executing the program:

The uplink channel is transmitted in diversity through the set of antennas.

Optionally, according to the terminal according to an embodiment of the present disclosure, the dividing the resources for transmitting the uplink channel into at least two resource groups includes:

Optionally, according to the terminal according to an embodiment of the present disclosure, based on the number of resources used for transmitting uplink channels that are divided in the time domain and the number of resources divided in the frequency domain, the resources used for transmitting uplink channels are The resources of the channel are divided into at least two resource groups, including:

Wherein, X is a predefined value or a value notified by the base station or a value determined based on the number of DMRS symbols of the demodulation reference signal and/or uplink channel format, and Y is a predefined value or a value notified by the base station or based on the number of resource blocks RB included in the uplink channel number to determine the value.

Optionally, according to the terminal of an embodiment of the present disclosure, the steps further include:

Optionally, according to the terminal of an embodiment of the present disclosure, the determined number of resource groups is a small value between the first number and the second number;

Optionally, according to the terminal of an embodiment of the present disclosure, the second number is calculated and determined according to the following formula, the second number=min(N, x)*A*B, where x is 2 or 4;

Optionally, according to the terminal according to an embodiment of the present disclosure, the dividing the resource for transmitting the uplink channel into at least two resource groups further includes:

Optionally, according to the terminal according to an embodiment of the present disclosure, the mapping of each resource group to the antenna set through precoding based on the precoding matrix includes:

Optionally, according to the terminal of an embodiment of the present disclosure, the precoding matrix is randomly selected in at least two resource groups, or the precoding matrix is used in at least two resource groups based on a predefined order.

Optionally, according to the terminal of an embodiment of the present disclosure, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Optionally, according to the terminal according to an embodiment of the present disclosure, the determining to use the precoding matrix switching diversity to send the uplink channel includes:

In a fifth aspect, an embodiment of the present disclosure further provides a base station, including:

a second division module, configured to divide the resources used for transmitting the uplink channel into at least two resource groups after determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel;

a receiving module, configured to receive the uplink channel sent by the terminal based on the at least two resource group sets; wherein, the uplink channel is the terminal that divides the resource used for transmitting the uplink channel into at least two resource groups, and each resource group is mapped to an antenna set through precoding based on a precoding matrix, and then sent through the antenna set diversity; the antenna set includes multiple physical antennas or multiple antenna ports.

In a sixth aspect, an embodiment of the present disclosure further provides a base station, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the following steps when executing the program:

After determining that the terminal uses the precoding matrix switching diversity to send the uplink channel, divide the resources used for transmitting the uplink channel into at least two resource groups;

Optionally, according to the base station of an embodiment of the present disclosure, the dividing the resources for transmitting the uplink channel into at least two resource groups includes:

Optionally, according to the base station of an embodiment of the present disclosure, based on the number of resources used for transmitting uplink channels that are divided in the time domain and the number of resources divided in the frequency domain, the resources used for transmitting uplink channels are divided into The resources of the channel are divided into at least two resource groups, including:

It is determined that the resources used for transmitting the uplink channel are divided into a preset number X in the time domain, and it is determined that the resources used for transmitting the uplink channel are divided into a preset number Y in the frequency domain;

Wherein, X is a predefined value, or a value determined based on the number of demodulation reference signal DMRS symbols and/or uplink channel format, or a value set by the base station, correspondingly, the set value of X is sent to the terminal to enable the terminal to determine the The resources used to transmit the uplink channel are divided into a preset number X in the time domain; Y is a predefined value, or a value determined based on the number of resource blocks RB included in the uplink channel, or a value set by the base station, correspondingly, to the terminal The set value of Y is sent so that the terminal determines that the resource for transmitting the uplink channel is divided into a preset number Y in the frequency domain.

Optionally, according to the base station of an embodiment of the present disclosure, the steps further include:

Optionally, according to the base station of an embodiment of the present disclosure, the determined number of resource groups is a small value between the first number and the second number;

Optionally, according to the base station of an embodiment of the present disclosure, the second number is calculated and determined according to the following formula, the second number=min(N,x)*A*B, where the value of x is 2 or 4;

Optionally, according to the base station of an embodiment of the present disclosure, the dividing the resources for transmitting the uplink channel into at least two resource groups further includes:

Optionally, according to the base station of an embodiment of the present disclosure, the determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel includes:

Optionally, according to the base station according to an embodiment of the present disclosure, after receiving the uplink channel sent by the terminal based on the at least two resource group sets, the method further includes:

In a seventh aspect, an embodiment of the present disclosure further provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, realizes the transmission method of the uplink channel provided in the first aspect. step.

In an eighth aspect, embodiments of the present disclosure further provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the transmission method of the uplink channel provided in the second aspect. step.

In the uplink channel transmission method, terminal, base station, and storage medium provided by the embodiments of the present disclosure, resources used for uplink channel transmission are divided into at least two resource groups, and each resource group is mapped to a precoding matrix based on a precoding matrix. On the antenna set, and through the antenna set, the uplink channel is sent in diversity to improve the transmission performance of the uplink channel. For cell edge users, the transmission performance of the uplink channel is still good when the channel conditions are poor, which meets the coverage requirements.

Description of drawings

In order to illustrate the embodiments of the present disclosure or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic flowchart of a method for transmitting an uplink channel according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of uplink channel resource group division according to an embodiment of the present disclosure;

3 is a schematic diagram of uplink channel resource group division according to another embodiment of the present disclosure;

4 is a schematic diagram of uplink channel resource group division according to another embodiment of the present disclosure;

FIG. 5 is a schematic diagram of uplink channel resource group division according to still another embodiment of the present disclosure;

FIG. 6 is a schematic diagram of uplink channel resource group division according to still another embodiment of the present disclosure;

FIG. 7 is a schematic diagram of uplink channel resource group division according to still another embodiment of the present disclosure;

FIG. 8 is a schematic diagram of uplink channel resource group division according to still another embodiment of the present disclosure;

FIG. 9 is a schematic diagram of uplink channel resource group division according to still another embodiment of the present disclosure;

FIG. 10 is a schematic diagram of uplink channel resource group division according to still another embodiment of the present disclosure;

FIG. 11 is a schematic diagram of uplink channel resource group division according to still another embodiment of the present disclosure;

12 is a schematic flowchart of a method for transmitting an uplink channel according to another embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

14 is a schematic structural diagram of a terminal device according to another embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of a base station according to another embodiment of the present disclosure.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments These are some, but not all, embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

In order to clearly describe the technical solutions of the embodiments of the present disclosure, in each embodiment of the present disclosure, if words such as "first" and "second" are used to distinguish the same or similar items that have basically the same function and effect, Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order.

Several background knowledge used in various embodiments of the present disclosure are described as follows:

In NR (New Radio, new air interface), the uplink control channel (Physical Uplink Control Channel, PUCCH) supports 5 formats, as shown in the following table.

Among them, PUCCH format 1, format 3 and format 4 can use a maximum PUCCH length of 14 symbols, and support repeated transmission in multiple time slots. In the case of repeated transmission, the transmission is performed according to the same transmission length in each time slot. PUCCH formats 2 and 3 support transmission on multiple RBs, PUCCH format 2 supports transmission on 1 to 16 resource blocks (Resource Blocks, RBs), and PUCCH format 3 supports transmission on specific RBs specified in Table 1 .

In the research process of Long Term Evolution (LTE) system, the transmit diversity scheme of Precoder Vector Switching (PVS) has been studied, which uses the precoding vector for the previous slot in a subframe. [+1,+1] is precoded between 2 antenna ports, and precoding vector [+1,-1] is used to precode between 2 antenna ports for the latter slot. The precoding vector is fixed, in an open-loop manner, and there is no need to signal the precoding vector.

In order to enhance the coverage of the uplink control channel, the transmit diversity scheme of the uplink control channel may need to be considered in NR Rel-17. At present, the uplink channel in NR is transmitted by a single antenna, and the transmit diversity scheme has not been defined. For cell edge users, the transmission performance of PUCCH is poor when the channel conditions are poor, which may not meet the coverage requirements. If the PVS transmit diversity in LTE is used, since the PUCCH in NR is not transmitted in subframe units, it is not clear how to divide into two resource groups to use different precoding vectors, and it is possible to divide only into two resource groups. The round-robin of the precoding vector is not sufficient, and the performance improvement is not obvious.

In order to solve this problem, the core idea of each embodiment of the present disclosure is to divide uplink channel resources into multiple resource groups based on a predefined manner, and each resource group uses different precoding vectors to map to different antennas or antenna ports In the above, the uplink channel is sent in diversity through the antenna set.

The present disclosure will be described in detail below with reference to multiple embodiments.

FIG. 1 is a schematic flowchart of a method for transmitting an uplink channel according to an embodiment of the present disclosure; as shown in FIG. 1 , the method includes the following steps:

Step 100: After determining to use the precoding matrix to switch the diversity to transmit the uplink channel, divide the resources used for transmitting the uplink channel into at least two resource groups, and map each resource group to the antenna set by precoding based on the precoding matrix above; the antenna set includes multiple physical antennas or multiple antenna ports;

Specifically, the basic principle of diversity is to carry multiple copies of the same information through multiple groups of channel resources. Since the transmission characteristics of the multiple groups of channel resources are different, the fading of the multiple copies of the signal will not be the same. The base station receives multiple copies of the information through multiple groups of channel resources, and the original transmitted signal can be recovered relatively correctly by using the information contained in the multiple copies.

Specifically, in this embodiment, in order to improve the performance of channel transmission, the uplink channel can be transmitted by diversity, that is, the resources used for transmitting the uplink channel can be divided into at least two resource groups, and the uplink transmission channel can be transmitted through the at least two resource groups. channel.

Specifically, when the uplink channel is transmitted through at least two resource groups, each resource group may be mapped to multiple antennas to transmit the uplink channel. In this embodiment, precoding may be used based on the precoding matrix to map to the antennas. On the set, where the antenna set includes multiple physical antennas or multiple antenna ports.

It can be understood that, in this embodiment, after determining to use the precoding matrix switching diversity to transmit the uplink channel, the terminal may divide the resources for transmitting the uplink channel into at least two resource groups to transmit the uplink channel.

It can be understood that, in this embodiment, the determination by the terminal to use the precoding matrix switching diversity to send the uplink channel may be determined based on the instruction of the base station.

Step 101: Diversely transmit the uplink channel through the antenna set.

Specifically, after the terminal divides the resources for transmitting the uplink channel into at least two resource groups and maps the at least two resource groups to the antenna set, the uplink channel can be sent in diversity through the antenna set.

In the uplink channel transmission method provided by the embodiments of the present disclosure, the resources used for transmitting the uplink channel are divided into at least two resource groups, and each resource group is mapped to the antenna set through precoding based on the precoding matrix, and the antenna Aggregation and diversity send uplink channels to improve the transmission performance of the uplink channels. For cell edge users, the transmission performance of the uplink channels is still good when the channel conditions are poor, meeting the coverage requirements.

Optionally, based on the foregoing embodiments, the dividing the resources used for transmitting the uplink channel into at least two resource groups includes:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of the resources for transmitting uplink channels divided in the time domain and the number of dividing the resources in the frequency domain;

Specifically, in this embodiment, the number of divisions in the time domain and the number of divisions in the frequency domain of the resources used for transmitting the uplink channel may be pre-defined or determined based on the parameters notified by the base station. The size of time domain resources and frequency domain resources are determined. After determining the number of uplink channels divided in the time domain and the number of divisions in the frequency domain, the size of each resource group is determined.

It can be understood that, in this embodiment, based on the number X divided in the time domain and the number Y divided in the frequency domain, the resources used for transmitting the uplink channel are divided into: When there are at least two resource groups, one group in the time domain and one group in the frequency domain are combined to obtain one resource group, that is, one uplink channel resource is divided into X*Y resource groups in total.

It can be understood that, in this embodiment, when X is preset to 1, in order to ensure that the uplink resources are divided into at least two resource groups, Y will not be preset to 1.

Or based on the determined number of resource groups, the resources used for transmitting uplink channels are divided into at least two resource groups; wherein, the number of resource groups is predefined or notified by the base station; and, each resource The resources occupied by the group are determined based on the uplink channel resources and the number of resource groups.

Specifically, in this embodiment, the number of resource groups into which resources for transmitting uplink channel resources are divided may be pre-determined, and during specific division, the uplink channel resources are divided into a certain number of resource groups.

It can be understood that the number of resource groups into which the resources used for transmitting the uplink channel are divided, that is, the number of the determined resource groups, may be predefined or notified by the base station;

It can be understood that, in this embodiment, when the number of resource groups is determined, the resources occupied by each resource group may be determined based on uplink channel resources and the number of resource groups.

Optionally, on the basis of the foregoing embodiments, based on the number of resources used for transmitting uplink channels that are divided in the time domain and the number of resources divided in the frequency domain, the resources used for transmitting uplink channels are divided into The resources of the channel are divided into at least two resource groups, including:

Specifically, to divide the resources for transmitting uplink channels into at least two resource groups based on the number of the resources used for transmitting uplink channels divided in the time domain and the number of resources divided in the frequency domain , first, it can be determined that the resources used for transmitting the uplink channel are divided into a preset number X in the time domain, and it is determined that the resources used for transmitting the uplink channel are divided into a preset number Y in the frequency domain, for example, it is determined that X is 2, Y is 2, that is, the uplink channel resources are divided into two in the time domain, and the uplink channel resources are divided into two in the frequency domain, so that the uplink channel resources are divided into four in total.

It can be understood that, in this embodiment, X may be a predefined value or a value notified by the base station, or a value determined based on the number of DMRS symbols of the demodulation reference signal and/or the uplink channel format. For example, the value of X may be 1 or 2. Or 4; Y can be a predefined value or a value notified by the base station or a value determined based on the number of RBs in the resource block included in the uplink channel. Divided into Y groups, each B/Y consecutive PUCCH RBs are a group, where B is divisible by Y.

For example, when the value of X is 1, assuming that the uplink channel resource contains N symbols, the first resource group in the time domain is also the only resource group that contains N symbols. It can be understood that when X is 1 , in order to ensure the transmission performance, Y cannot take 1.

For example, when the value of X is 2, assuming that the uplink channel resources include N symbols, the first resource group in the time domain includes floor(N/2) symbols, and the second resource group includes ceil(N/2) symbols. 2) symbols.

For example, when the value of X is 4, assuming that the uplink channel contains N symbols, the first resource group in the time domain contains ceil(floor(N/2)/2) symbols, and the second resource group contains ceil(floor(N/2)/2) symbols. floor(floor(N/2)/2) symbols, the third resource group contains ceil(ceil(N/2)/2) symbols, and the fourth resource group contains floor(ceil(N/2) /2) symbols; where ceil() means rounding up and floor() means rounding down.

It can be understood that, in this embodiment, when dividing the resource group, the used ceil and floor can be replaced with each other, but the dividing principle remains unchanged.

For example, FIG. 2 is a schematic diagram of uplink channel resource group division provided by an embodiment of the present disclosure; as shown in FIG. 2 , the terminal determines to use the precoding matrix switching diversity to send the uplink channel, for example, the base station configures the terminal to use the precoding matrix switching based on the transmission diversity mode Then, when the terminal wants to send an uplink channel resource occupying 2 RBs and 14 symbols, the uplink channel contains 2 DMRS symbols, and it is pre-defined that the uplink channel resources are divided into 2 groups in the time domain, and in the frequency domain is divided into 2 groups, then the terminal can divide the uplink channel resources into 4 resource groups, as shown in Figure 2, where the first 7 symbols of RB#1 are the first resource group Precoder 1, the rear of RB#1 The 7 symbols are the second resource group Precoder 2, the first 7 symbols of RB#2 are the third resource group Precoder 3, and the last 7 symbols of RB#4 are the fourth resource group Precoder 4. Each resource group uses different precoding matrices to map the transmit information to the physical antenna set or antenna port set. For example, the terminal uses two physical antennas for transmission, and the precoding matrix on the first resource group Precoder 1 is {1 ,1}, the precoding matrix on the second resource group Precoder 2 is {1,-1}, the precoding matrix on the third resource group Precoder3 is {1,j}, and the fourth resource group The precoding matrix on Precoder 4 is {1,-j}. Finally, the two physical antennas perform diversity transmission on the uplink channel.

For example, FIG. 3 is a schematic diagram of uplink channel resource group division provided by another embodiment of the present disclosure; as shown in FIG. 3 , the base station configures the terminal to switch the transmit diversity mode based on the precoding matrix, when the terminal transmits one RB and 14 RBs When there are uplink channel resources of symbols, the uplink channel contains 2 DMRS symbols. Assuming that the uplink channel resources are divided into 4 groups in the time domain when additional DMRS symbols are configured in advance, the terminal can divide the uplink channel resources into 4 groups. As shown in Figure 2, the first 3 symbols of RB#1 are the first resource group Precoder 1, the 4th to 7th symbols are the second resource group Precoder 2, and the 8th to 10th symbols are The third resource group Precoder 3, the 11th to 14th symbols are the fourth resource group Precoder 4, and the terminal uses different precoding matrices on these four resource groups to map the transmitted information on the physical antenna set or the antenna port set. , for example, the terminal uses two physical antennas for transmission, the precoding matrix on the first resource group is {1,1}, the precoding matrix on the second resource group is {1,-1}, and the precoding matrix on the second resource group is {1,-1}. The precoding matrix on the three resource groups is {1,j}, and the precoding matrix on the third resource group is {1,-j}. Alternatively, the four resource groups use precoding matrices {1,1} and {1,-1} for round-robin, for example, the precoding matrix on the first resource group Precoder 1 is {1,1}, and the precoding matrix in the first resource group Precoder 1 is {1,1}. The precoding matrix on the two resource groups Precoder 2 is {1,-1}, the precoding matrix on the third resource group Precoder 3 is {1,1}, and the precoding matrix on the fourth resource group Precoder 4 is {1,1}. The encoding matrix is {1,-1}.

Optionally, on the basis of the foregoing embodiments, the method further includes:

Specifically, when the uplink channel is configured with repeated transmission, the value of X may be an integer value less than or equal to the number of repeated transmissions on the uplink channel, for example, the same resource group is used for transmission every two repeated transmissions;

Assuming that the number of repetitions of the uplink channel is A, for example, the A repeated transmission of the uplink channel resources is divided into X groups, and the repeated transmission of the uplink channel in each A/X timeslot/sub-slot is grouped into a group, where A can be transmitted by X Divide;

Specifically, the value of X may also be 2 times or 4 times the number of repeated transmissions of the uplink channel;

For example, the uplink channel in each time slot/sub-slot is divided into 2 or 4 resource groups based on the method when repeated transmission is not configured. Assuming that the repetition number of the uplink channel is A, it is divided into 2 in the time domain. *A or 4*A group.

For example, FIG. 4 is a schematic diagram of uplink channel resource group division provided by another embodiment of the present disclosure; as shown in FIG. 4 , the base station configures the terminal to switch the transmit diversity mode based on the precoding matrix, when the terminal transmits one RB and 14 RBs When the uplink channel resource of the symbol is configured, and the uplink channel is configured for repeated transmission 4 times, the terminal can divide the uplink channel resource into 4 resource groups Precoder 1, Precoder2, Precoder 3, and Precoder 4, as shown in Figure 4, in which each A repeated transmission is a resource group. The terminal uses different precoding matrices on these four resource groups to map the transmitted information on the physical antenna set or antenna port set. For example, the terminal uses two physical antennas for transmission. The precoding matrix on resource group Precoder 1 is {1,1}, the precoding matrix on the second resource group Precoder 2 is {1,-1}, and the precoding matrix on the third resource group Precoder 3 is {1,j}, and the precoding matrix on the fourth resource group Precoder 4 is {1,-j}. Alternatively, the four resource groups use precoding matrices {1,1} and {1,-1} for round-robin, for example, the precoding matrix on the first resource group Precoder 1 is {1,1}, and the precoding matrix in the first resource group Precoder 1 is {1,1}. The precoding matrix on the two resource groups Precoder 2 is {1,-1}, the precoding matrix on the third resource group Precoder 3 is {1,1}, and the precoding matrix on the fourth resource group Precoder 4 is {1,1}. The encoding matrix is {1,-1}.

It should be noted that, in this embodiment, only one RB is occupied by the uplink channel and four repeated transmissions are divided into four resource groups as an example for description. Alternatively, four repeated transmissions can be divided into two resource groups, and the first two repeated transmissions are divided into two resource groups. It is the first resource group, and the last two repeated transmissions are the second resource group. If the uplink channel resource in this embodiment occupies two RBs, it can also be divided into 8 resource groups, and each RB in each repeated transmission is a resource group; it can also be divided into 4 resource groups, one repeated transmission The two RBs in the RB are one resource group; alternatively, it can also be divided into two resource groups, the first two repeated transmissions are the first resource group, and the last two repeated transmissions are the second resource group.

For example, FIG. 5 is a schematic diagram of uplink channel resource group division provided by still another embodiment of the present disclosure; as shown in FIG. 5 , the base station configures the terminal to use the precoding matrix-based switching transmit diversity mode. When the terminal transmits one RB and 14 RBs When the uplink channel resource of the symbol is configured and the uplink channel is configured for repeated transmission 4 times, the terminal can divide the uplink channel resource into 8 resource groups: Precoder 1, Precoder 2, Precoder 3, Precoder 4, Precoder 5, Precoder 6, Precoder 7, and Precoder 8, as shown in Figure 5, wherein each repeated transmission contains 2 resource groups, and the terminal uses different precoding matrices on these 8 resource groups to map the transmission information on the physical antenna set or the antenna port set. .

It should be noted that, in this embodiment, only one RB is occupied by the uplink channel and 4 repeated transmissions are divided into 8 resource groups as an example for description. If the uplink channel resource in this embodiment occupies two RBs, it can also be divided into There are 16 resource groups, and each repeated transmission is divided into 4 resource groups similar to the method in Figure 2; it can also be divided into 8 resource groups, the division method in the time domain is unchanged, and the two RBs in the frequency domain belong to the same a resource group.

Optionally, on the basis of the foregoing embodiments, the determined number of resource groups is a small value between the first number and the second number;

Specifically, if the number of resource groups is determined, the final number of resource groups to be divided may be determined based on the first number Z, the number of resource groups, and the second number, where the second number is based on the The number N of DMRS symbols, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel are determined.

Specifically, comparing the values of the two, if the first number, that is, the preset number of resource groups Z, is small, the uplink channel resources are divided into Z, and if the second number is small, the uplink channel resources are divided into Z. The number is divided into a second number.

Optionally, on the basis of the foregoing embodiments, the second number is calculated and determined according to the following formula, the second number=min(N, x)*A*B, where the value of x is 2 or 4;

Specifically, it can be specified that the second number=min(N,x)*A*B, where x is 2 or 4; that is, if the preset number of resource groups is Z, the number of DMRS symbols included in the uplink channel is N, the number of repetitions of the uplink channel is A, and the number of RBs contained in the uplink channel is B. If Z>=min(N,x)*A*B, the uplink channel is divided into min(N,x)*A* B resource groups; otherwise, the uplink channel is divided into Z resource groups.

Specifically, when the uplink channel is divided into min(N,x)*A*B resource groups, each RB of the uplink channel in each uplink channel repetition time slot includes min(N,x) resource groups, and each resource groups include one RB and N/x DMRS symbols,

For example, if x is 2, the first resource group of each RB contains floor(N/2) symbols, and the second resource group contains ceil(N/2) symbols;

For example, if the number of DMRS symbols contained in the uplink channel is greater than or equal to 4 and x is 4, the first resource group of each RB contains ceil(floor(N/2)/2) symbols, the second The resource group contains floor(floor(N/2)/2) symbols, the third resource group contains ceil(ceil(N/2)/2) symbols, and the fourth resource group contains floor(ceil( N/2)/2) symbols.

For example, FIG. 6 is a schematic diagram of uplink channel resource group division provided by another embodiment of the present disclosure; as shown in FIG. Assuming that the predefined x=1, when the terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the number of DMRS symbols contained in the uplink channel is 4, and repeated transmission is not configured, then Z=4, min( N,x)*A*B=min(4,1)*1*2=2, since Z>min(N,x)*A*B, as shown in Figure 6, the terminal can use the uplink channel resource It is divided into two resource groups, Precoder 1 and Precoder 2. The terminal uses different precoding matrices on these two resource groups to map the transmit information to multiple physical antennas or antenna ports.

Optionally, based on the foregoing embodiments, the dividing the resources used for transmitting the uplink channel into at least two resource groups further includes:

Specifically, when the uplink channel is divided into Z resource groups, the repeated transmission can be divided into different resource groups first, then different RBs are divided into different resource groups, and finally the resources in each RB are divided into different resource groups. According to this The division sequence divides the uplink channel into Z resource groups.

For example, if Z<=A, the uplink channels of A repeated transmission are divided into Z resource groups, and the specific division methods may be various, which are not specifically limited in this embodiment; if Z>A and Z<=A*B , the A*B uplink channel RB resources of repeated transmission are divided into Z resource groups, and the specific division methods can be various, which are not specifically limited in this embodiment; if Z>A*B, the uplink channel resources are divided into The Z resource groups may be divided in various manners, which are not specifically limited in this embodiment.

For example, FIG. 7 is a schematic diagram of uplink channel resource group division provided by another embodiment of the present disclosure; as shown in FIG. Assuming the predefined x=2, when the terminal sends an uplink channel resource occupying 1 RB and 14 symbols, and the number of DMRS symbols contained in the uplink channel is 2, and is configured to repeat the transmission 4 times, then Z=4, min (N,x)*A*B=min(2,2)*4*1=8, since Z<min(N,x)*A*B, the terminal can divide the uplink channel resource into Z=4 There are resource groups Precoder 1, Precoder, 2, Precoder, 3, and Precoder 4, as shown in Figure 7, where each repeated transmission is a resource group, and the terminal uses different precoding matrices on these four resource groups to transmit Information is mapped on multiple physical antennas or antenna ports.

For example, FIG. 8 is a schematic diagram of uplink channel resource group division provided by another embodiment of the present disclosure; as shown in FIG. Assuming that the predefined x=4, when the terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the number of DMRS symbols contained in the uplink channel is 2, and is configured to repeat the transmission 4 times, then Z=4, min (N,x)*A*B=min(2,4)*4*2=16, since Z<min(N,x)*A*B, the terminal can divide the uplink channel resource into 4 resources Groups Precoder 1, Precoder, 2, Precoder, 3, and Precoder 4, as shown in Figure 8, in which each repeated transmission is a resource group, and the terminal uses different precoding matrices on these four resource groups to map the transmitted information on multiple physical antennas or antenna ports.

For example, FIG. 9 is a schematic diagram of uplink channel resource group division provided by another embodiment of the present disclosure; as shown in FIG. Assuming that the predefined x=4, when the terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the number of DMRS symbols contained in the uplink channel is 2, and is configured to repeat the transmission twice, then Z=4, min (N,x)*A*B=min(2,4)*2*2=8, since Z<min(N,x)*A*B, the terminal can divide the uplink channel resource into 4 resources Groups Precoder 1, Precoder, 2, Precoder, 3, and Precoder 4, as shown in Figure 9, in which the two RBs in each repeated transmission are divided into two resource groups, and the terminal uses different resource groups on these four resource groups. The precoding matrix maps transmit information on multiple physical antennas or antenna ports.

It can be understood that, in this embodiment, the first number may also be equal to the second number, and the number of resource groups determined by the first number or the number of resource groups determined by the second number. .

For example, FIG. 10 is a schematic diagram of uplink channel resource group division provided by a further embodiment of the present disclosure; as shown in FIG. Assuming the predefined x=4, when the terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the number of DMRS symbols contained in the uplink channel is 2, and repeated transmission is not configured, then Z=4, min( N,x)*A*B=min(2,4)*1*2=4, since Z=min(N,x)*A*B, the terminal can divide the uplink channel resource into 4 resource groups Precoder 1, Precoder, 2, Precoder, 3, and Precoder 4, as shown in Figure 10, where each RB contains 2 resource groups, and the terminal uses different precoding matrices on these four resource groups to map the transmitted information in on multiple physical antennas or antenna ports.

For example, FIG. 11 is a schematic diagram of uplink channel resource group division provided by another embodiment of the present disclosure; as shown in FIG. Assuming the predefined x=4, when the terminal sends an uplink channel resource occupying 1 RB and 14 symbols, and the number of DMRS symbols contained in the uplink channel is 4, and repeated transmission is not configured, then Z=4, min( N,x)*A*B=min(4,4)*1*1=4, since Z=min(N,x)*A*B, the terminal can divide the uplink channel resource into 4 resource groups Precoder 1, Precoder, 2, Precoder, 3, and Precoder 4, as shown in Figure 11, the terminal uses different precoding matrices on these four resource groups to map the transmitted information to multiple physical antennas or antenna ports.

Optionally, on the basis of the foregoing embodiments, the mapping of each resource group to the antenna set through precoding based on the precoding matrix includes:

Specifically, in this embodiment, the precoding may be digital domain precoding or analog precoding.

If the precoding is precoding in the digital domain, that is, the matrix elements in the precoding matrix are mapped to the antenna set. For example, for the uplink channel of single-layer transmission, when there are 2 transmit antennas, the length of the precoding vector is 2, where the precoding vector length is 2. The coding vectors can be {1, 1}, {1, -1}, {1, -j}, {1, j}, where the first element of each vector corresponds to the first antenna and the second element corresponds to second antenna.

If the precoding is analog precoding, the analog precoding is mapped to the antenna set through spatial domain related information. For example, the analog precoding is mapped to a physical antenna set or an antenna port set through spatial correlation information such as beam direction.

Optionally, based on the foregoing embodiments, the precoding matrix is randomly selected in at least two resource groups, or the precoding matrix is used in at least two resource groups based on a predefined order.

Specifically, in multiple resource groups, the precoding matrix is switched for transmission, wherein the precoding matrix can be randomly selected in the multiple resource groups, that is, when each resource group is mapped to the antenna set, which precoding matrix to use is randomly selected ; Or, the precoding matrix is used in multiple resource groups based on a predefined order, that is, each resource group selects the precoding matrix according to the predefined order when mapping to the antenna set.

Optionally, based on the foregoing embodiments, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Specifically, in this embodiment, the number of rows/columns of the precoding matrix is greater than or equal to the number of transmitting antennas or antenna ports. For example, for single-layer transmission, the number of rows of the precoding matrix is 1, that is, using a precoding vector, The length is greater than or equal to the number of transmitting antennas or antenna ports.

Optionally, on the basis of the foregoing embodiments, the determining to use the precoding matrix switching diversity to transmit the uplink channel includes:

Specifically, the base station or the protocol may instruct or stipulate that the terminal only performs diversity transmission on a special channel only in a specific situation, for example.

For example, the terminal is instructed to use the transmit diversity of precoding matrix switching only for uplink channels of a certain length. For example, when using a common cyclic prefix, the terminal only uses the transmit diversity of precoding matrix switching for uplink channels with a length of 10 to 14 symbols; when using an extended cyclic prefix, the terminal only uses uplink channels with a length of 10 to 12 symbols. Transmit diversity of precoding matrix switching; single-antenna transmission is used for uplink channels of unspecified length.

For example, the terminal is instructed to use transmit diversity of precoding matrix switching only for a specific uplink channel format, for example, only for uplink channel PUCCH format 1, format 3 and format 4 using diversity transmission.

For example, the terminal is instructed to use the transmit diversity of precoding matrix switching only for the uplink channel with frequency hopping in the time slot.

In the uplink channel transmission method provided by the embodiments of the present disclosure, the resources used for transmitting the uplink channel are divided into at least two resource groups, and each resource group is mapped to the antenna set by precoding based on the precoding matrix, and the antenna Aggregation and diversity send uplink channels to improve the transmission performance of the uplink channels. For cell edge users, the transmission performance of the uplink channels is still good when the channel conditions are poor, meeting the coverage requirements.

FIG. 12 is a schematic flowchart of a method for transmitting an uplink channel provided by another embodiment of the present disclosure; as shown in FIG. 2 , the method includes the following steps:

Step 1200, after determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel, divide the resources used for transmitting the uplink channel into at least two resource groups;

It can be understood that, in this embodiment, after determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel, the base station may divide the resources used for transmitting the uplink channel into at least two resource groups for receiving the uplink channel.

It can be understood that, in this embodiment, the base station may instruct the terminal to determine to use the precoding matrix switching diversity to send the uplink channel.

Step 1201: Receive the uplink channel sent by the terminal based on the at least two resource group sets; wherein, the uplink channel is that the terminal divides the resources used for transmitting the uplink channel into at least two resource groups , and based on the precoding matrix, each resource group is mapped to an antenna set through precoding, and then sent through the antenna set diversity; the antenna set includes multiple physical antennas or multiple antenna ports.

Specifically, after the base station divides the resources for transmitting uplink channels into at least two resource groups, the uplink channels sent by the terminal diversity can be received on each resource group.

It can be understood that the uplink channel sent by the terminal diversity is that when the terminal transmits the uplink channel through at least two resource groups, each resource group is mapped to a different antenna, and the uplink channel is sent through the antenna through different resource groups. In an example, the terminal maps resource groups to an antenna set through precoding based on a precoding matrix, where the antenna set includes multiple physical antennas or multiple antenna ports.

In the uplink channel transmission method provided by the embodiments of the present disclosure, the resources used for transmitting the uplink channel are divided into at least two resource groups, and the uplink channel sent by the terminal is received based on the at least two resource group sets. The resources used to transmit the uplink channel are divided into at least two resource groups, and each resource group is mapped to the antenna set through precoding based on the precoding matrix, and then sent through the antenna set diversity; to improve the transmission performance of the uplink channel, for For cell edge users, when the channel conditions are poor, the transmission performance of the uplink channel is still good, meeting the coverage requirements.

Specifically, in this embodiment, the number of resources used for transmitting uplink channels to be divided in the time domain and the number of resources to be divided in the frequency domain may be pre-defined. The size is fixed. After the number of uplink channels divided in the time domain and the number of divisions in the frequency domain are predefined, the size of each resource group is predefined.

Or based on the determined number of resource groups, the resources used for transmitting uplink channels are divided into at least two resource groups; wherein, the number of resource groups is predefined or set by the base station, and accordingly, the terminal is sent to the terminal. Send the set number of resource groups, so that the terminal divides the resources used for transmitting uplink channels into at least two resource groups based on the number of resource groups; and, the resources occupied by each resource group are based on The number of uplink channel resources and resource groups is determined.

It can be understood that the number of resource groups into which resources for transmitting uplink channels are divided, that is, the number of determined resource groups, may be predefined or set by the base station. It is understandable that the base station sets the number of resource groups. After the number of resource groups, the terminal can also be notified of the number of resource groups set, so that the terminal can divide the resources used for transmitting uplink channels into at least two resource groups based on the number of resource groups;

It can be understood that, in this embodiment, X may be a predefined value or a value set by the base station, or a value determined based on the number of DMRS symbols of the demodulation reference signal and/or the format of the uplink channel. For example, the value of X may be 1 or 2. Or 4; Y can be a predefined value or a value set by the base station or a value determined based on the number of RBs in the resource block included in the uplink channel. For example, if the number of RBs included in the uplink channel is B, the B RBs of the uplink channel resource Divided into Y groups, each B/Y consecutive PUCCH RBs are a group, where B is divisible by Y.

It can be understood that when X or Y is a value set by the base station, the base station can send the value to the terminal at the same time, so that the terminal can use the same value to divide the same resource group as the base station side.

Specifically, when the uplink channel is configured with repeated transmission, the value of X may be or equal to an integer value less than the number of repeated transmissions on the uplink channel, for example, the same resource group is used for transmission every two repeated transmissions;

Optionally, on the basis of the foregoing embodiments, the determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel includes:

Determining that the terminal determines transmit diversity using precoding matrix switching only for a specific uplink channel format based on protocol specifications or instructing the terminal; or

Optionally, based on the foregoing embodiments, after receiving the uplink channel sent by the terminal based on the at least two resource component sets, the method further includes:

Specifically, after the base station receives the uplink channel sent by the terminal based on its at least two resource group sets, it can also perform independent channel estimation for each resource group.

It can be understood that, since the precoding operation is performed for the data and pilots contained in the uplink channel when the terminal performs precoding, the base station does not need to know the precoding used by each resource group when the terminal performs precoding. Coding matrix, the base station can perform channel estimation based on pilots for each resource block in the received uplink channel. The estimated channel information already contains precoding related information, and the base station then processes the received channel information based on the estimated channel information. data, thereby removing the effects of channel and precoding.

Optionally, if at least two resource groups divided by the precoding matrix switching transmit diversity method used by the terminal side always perform channel estimation independently, the method may be transparent to the base station side, that is, the base station side does not need to notify Whether the terminal side performs precoding matrix switching and transmit diversity, the base station side normally receives the uplink channel. Wherein, the at least two resource groups always perform channel estimation independently, which may be that the at least two resource groups belong to different time slots, or belong to different repeated transmissions, or belong to different frequency hopping resources, or belong to different RBs, etc. .

FIG. 13 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in FIG. 13 , the terminal includes: a first dividing module 1301 and a sending module 1302; wherein:

The first division module 1301 is configured to divide the resources used for transmitting the uplink channel into at least two resource groups after determining that the uplink channel is sent using the precoding matrix switching diversity, and precoding each resource group based on the precoding matrix. Mapped to an antenna set; the antenna set includes multiple physical antennas or multiple antenna ports;

The sending module 1302 is configured to send the uplink channel diversity by using the antenna set.

Specifically, after determining by the first dividing module 1301 to use the precoding matrix switching diversity to transmit the uplink channel, the terminal divides the resources used for transmitting the uplink channel into at least two resource groups, and divides each resource group based on the precoding matrix It is mapped to the antenna set through precoding; and then the uplink channel is sent by diversity through the antenna set through the sending module 1302 .

The terminal provided by the embodiment of the present disclosure is used to execute the method described in the above corresponding embodiment. The same technical effect will not be repeated here.

The terminal provided by the embodiments of the present disclosure divides the resources used for transmitting uplink channels into at least two resource groups, maps each resource group to the antenna set through precoding based on the precoding matrix, and through the antenna set, diversity Send the uplink channel to improve the transmission performance of the uplink channel. For cell edge users, the transmission performance of the uplink channel is still good when the channel conditions are poor, meeting the coverage requirements.

Optionally, on the basis of the foregoing embodiments, the first division module includes:

A first time-frequency domain division module, configured to divide the resources used for transmitting uplink channels into: at least two resource groups; or

The first determined quantity division module is configured to divide the resources used for transmitting uplink channels into at least two resource groups based on the determined number of resource groups; wherein, the number of resource groups is predefined, or the base station and the resources occupied by each resource group are determined based on the uplink channel resources and the number of resource groups.

Optionally, on the basis of the foregoing embodiments, the first time-frequency domain division module is specifically configured to:

Optionally, on the basis of the foregoing embodiments, the first time-frequency domain dividing module is further configured to:

Optionally, on the basis of the foregoing embodiments, the number of the determined resource groups in the first determined number division module is a small value between the first number and the second number;

FIG. 14 is a schematic structural diagram of a terminal device according to another embodiment of the present disclosure. As shown in FIG. 14 , the terminal device 1400 may include: at least one processor 1401 , memory 1402 , at least one network interface 1404 and other user interfaces 1403 . The various components in end device 1400 are coupled together by bus system 1405 . It is understood that the bus system 1405 is used to implement the connection communication between these components. In addition to the data bus, the bus system 1405 also includes a power bus, a control bus, and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 1405 in FIG. 14 .

The user interface 1403 may include a display, a keyboard or a pointing device, such as a mouse, a trackball, a touch pad or a touch screen, and the like.

It will be appreciated that the memory 1402 in embodiments of the present disclosure may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) And direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory 702 of the systems and methods described in various embodiments of the present disclosure is intended to include, but not be limited to, these and any other suitable types of memory.

In some embodiments, the memory 1402 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set of them, such as the operating system 14021 and the application programs 14022.

The operating system 14021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 14022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services. A program implementing the method of the embodiment of the present disclosure may be included in the application program 14022 .

In the embodiment of the present disclosure, by calling the computer program or instruction stored in the memory 1402, specifically, the computer program or instruction stored in the application program 14022, the processor 1401 is configured to:

The uplink channel is transmitted in diversity through the set of antennas.

The methods disclosed in the above embodiments of the present disclosure may be applied to the processor 1401, or implemented by the processor 1401. The processor 1401 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the processor 1401 or an instruction in the form of software. The above-mentioned processor 1401 can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps and logical block diagrams in the embodiments of the present disclosure can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present disclosure may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 1402, and the processor 1401 reads the information in the memory 1402, and completes the steps of the above method in combination with its hardware.

It will be appreciated that the embodiments described in this disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Device (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described in this disclosure electronic unit or a combination thereof.

For software implementation, the described techniques may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure. Software codes may be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

Optionally, as another embodiment, the dividing the resource for transmitting the uplink channel into at least two resource groups includes:

Optionally, as another embodiment, based on the number of the resources for transmitting the uplink channel divided in the time domain and the number of divisions in the frequency domain, the resources for transmitting the uplink channel are divided into Divide into at least two resource groups, including:

Optionally, as another embodiment, the processor 1401 is further configured to:

Optionally, as another embodiment, the determined number of resource groups is a small value between the first number and the second number;

Optionally, as another embodiment, the second number is calculated and determined according to the following formula, the second number=min(N, x)*A*B, where the value of x is 2 or 4;

Optionally, as another embodiment, the dividing the resource for transmitting the uplink channel into at least two resource groups further includes:

Optionally, as another embodiment, mapping each resource group to the antenna set through precoding based on the precoding matrix, including:

Optionally, as another embodiment, the precoding matrix is randomly selected in at least two resource groups, or the precoding matrix is used based on a predefined order in at least two resource groups.

Optionally, as another embodiment, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Optionally, as another embodiment, the determining to use the precoding matrix switching diversity to send the uplink channel includes:

It should be noted here that the above-mentioned terminal equipment provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned uplink channel transmission method embodiments, and can achieve the same technical effect, and the description in this embodiment is not repeated here. The same parts and beneficial effects as those in the method embodiment will be described in detail.

15 is a schematic structural diagram of a terminal provided by another embodiment of the present disclosure. The terminal in FIG. 15 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), or an electronic reader, a handheld game console, a sales Terminal (Point of Sales, POS), vehicle electronic equipment (vehicle computer), etc. As shown in FIG. 15 , the terminal includes a radio frequency (Radio Frequency, RF) circuit 1510 , a memory 1520 , an input unit 1530 , a display unit 1540 , a processor 1560 , an audio circuit 1570 , a WiFi (Wireless Fidelity) module 1580 and a power supply 1590 . Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 15 does not constitute a limitation on the mobile phone, and may include more or less components than the one shown in the figure, or combine some components, or disassemble some components, or Different component arrangements.

Wherein, the input unit 1530 can be used to receive numerical or character information input by the user, and generate signal input related to user settings and function control of the mobile terminal. Specifically, in this embodiment of the present disclosure, the input unit 1530 may include a touch panel 15301 . The touch panel 15301, also known as the touch screen, can collect the user's touch operations on or near it (such as the user's operations on the touch panel 15301 using any suitable objects or accessories such as a finger, a stylus, etc.) The specified program drives the corresponding connection device. Optionally, the touch panel 15301 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 1560, and can receive commands from the processor 1560 and execute them. In addition, the touch panel 15301 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 15301, the input unit 1530 may further include other input devices 15302, which may be used to receive input numerical or character information and generate key signal input related to user settings and function control of the mobile terminal. Specifically, other input devices 15302 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, optical mice (optical mice are touch-sensitive mice that do not display visual output) surface, or an extension of a touch-sensitive surface formed by a touch screen), etc.

The display unit 1540 may be used to display information input by the user or information provided to the user and various menu interfaces of the mobile terminal. The display unit 1540 may include a display panel 15401. The display panel 15401 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), and the like.

It should be noted that the touch panel 15301 can cover the display panel 15401 to form a touch display. When the touch display detects a touch operation on or near it, it is transmitted to the processor 1560 to determine the type of touch event, and then the processor 1560 provides corresponding visual output on the touch display screen according to the type of touch event.

The touch screen includes the application program interface display area and the commonly used controls display area. The arrangement of the application program interface display area and the common control display area is not limited, and can be an arrangement that can distinguish the two display areas, such as up and down, left and right. The application program interface display area can be used to display the interface of the application program. Each interface may contain at least one application icon and/or interface elements such as widget desktop controls. The application program interface display area can also be an empty interface that does not contain any content. The commonly used control display area is used to display controls with high usage rate, such as setting buttons, interface numbers, scroll bars, phonebook icons and other application icons.

The RF circuit 1510 can be used for receiving and sending signals during sending and receiving of information or during a call. In particular, after receiving the downlink information from the network side, it is processed by the processor 1560; in addition, it sends the designed uplink data to the network side. Typically, the RF circuit 1510 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 1510 may also communicate with networks and other devices via wireless communications. The wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobilecommunication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division) Multiple Access, CDMA), Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), email, Short Messaging Service (Short Messaging Service, SMS), etc.

The memory 1520 is used to store software programs and modules, and the processor 1560 executes various functional applications and data processing of the mobile terminal by running the software programs and modules stored in the memory 1520 . The memory 1520 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required for at least one function, and the like; Data (such as audio data, phone book, etc.) created by the use of the mobile terminal, etc. Additionally, memory 1520 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1560 is the control center of the mobile terminal, using various interfaces and lines to connect various parts of the entire mobile phone, by running or executing the software programs and/or modules stored in the first memory 15201, and calling the software programs and/or modules stored in the second memory 15202, perform various functions of the mobile terminal and process data, so as to monitor the mobile terminal as a whole. Optionally, processor 1560 may include one or more processing units.

In this embodiment of the present disclosure, by calling and storing software programs and/or modules in the first memory 15201 and/or data in the second memory 15202, the processor 1560 is configured to:

The uplink channel is transmitted in diversity through the set of antennas.

Optionally, as another embodiment, the processor 1401 is further configured to:

Optionally, as another embodiment, the mapping of each resource group to the antenna set through precoding based on the precoding matrix includes:

FIG. 16 is a schematic structural diagram of a base station provided by an embodiment of the present disclosure. As shown in FIG. 16 , the base station includes: a second dividing module 1601 and a receiving module 1602; wherein:

The second dividing module 1601 is configured to divide the resource used for transmitting the uplink channel into at least two resource groups after determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel;

The receiving module 1602 is configured to receive the uplink channel sent by the terminal based on the at least two resource group sets; wherein, the uplink channel is that the terminal divides the resource used for transmitting the uplink channel into at least two resource groups, and each resource group is mapped to an antenna set through precoding based on a precoding matrix, and then sent through the antenna set diversity; the antenna set includes multiple physical antennas or multiple antenna ports.

Specifically, after determining by the second dividing module 1601 that the terminal uses the precoding matrix switching diversity to send the uplink channel, the base station divides the resources used for transmitting the uplink channel into at least two resource groups, and then uses the receiving module 1602 based on the At least two resource group sets receive the uplink channel sent by the terminal.

The base station provided by the embodiments of the present disclosure is configured to execute the methods described in the corresponding embodiments above. The same technical effect will not be repeated here.

The base station provided by the embodiments of the present disclosure divides the resources used for transmitting uplink channels into at least two resource groups, and receives the uplink channels sent by the terminal based on the at least two resource group sets, where the uplink channel is the uplink channel that the terminal will use for transmission The resources of the uplink channel are divided into at least two resource groups, and each resource group is mapped to the antenna set through precoding based on the precoding matrix, and then sent through the antenna set diversity; to improve the transmission performance of the uplink channel, for cell edge users , when the channel conditions are poor, the transmission performance of the uplink channel is still good, meeting the coverage requirements.

Optionally, on the basis of the foregoing embodiments, the second division module specifically includes;

A second time-frequency domain dividing module, configured to divide the resources for transmitting the uplink channel into the following: at least two resource groups; or

The second quantity dividing module is configured to divide the resources for transmitting uplink channels into at least two resource groups based on the determined number of resource groups; wherein the number of resource groups is predefined or set by the base station correspondingly, send the set number of resource groups to the terminal, so that the terminal divides the resources used for transmitting uplink channels into at least two resource groups based on the number of resource groups; and, each The resources occupied by the resource group are determined based on the uplink channel resources and the number of resource groups.

Optionally, on the basis of the foregoing embodiments, the second time-frequency domain dividing module is specifically configured to: determine that the resources used for transmitting the uplink channel are divided into a preset number X in the time domain, and determine the The resources used for transmitting the uplink channel are divided into a preset number Y in the frequency domain;

Optionally, on the basis of the foregoing embodiments, the second time-frequency domain division module is further configured to:

Optionally, on the basis of the foregoing embodiments, the base station further includes:

FIG. 17 is a schematic structural diagram of a base station according to another embodiment of the present disclosure. As shown in FIG. 17 , the base station 1700 may include at least one processor 1701 , a memory 1702 , at least one other user interface 1703 , and a transceiver 1704 . The various components in base station 1700 are coupled together by bus system 1705 . It will be appreciated that the bus system 1705 is used to implement the connection communication between these components. In addition to the data bus, the bus system 1705 also includes a power bus, a control bus, and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 1705 in FIG. 17, and the bus system may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1701 and memory 1702 The various circuits representing the memory are linked together. The bus system can also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore will not be further described in the embodiments of the present disclosure . The bus interface provides the interface. Transceiver 1704 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium. For different user equipments, the user interface 1703 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

It will be appreciated that the memory 1702 in embodiments of the present disclosure may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) And direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory 1702 of the systems and methods described in various embodiments of the present disclosure is intended to include, but not be limited to, these and any other suitable types of memory.

The processor 1701 is responsible for managing the bus system and general processing, and the memory 1702 can store computer programs or instructions used by the processor 1701 when performing operations, specifically,

Processor 1701 may be used to:

The methods disclosed in the above embodiments of the present disclosure may be applied to the processor 1701 or implemented by the processor 1701 . The processor 1701 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the processor 1701 or an instruction in the form of software. The above-mentioned processor 1701 can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps and logical block diagrams in the embodiments of the present disclosure can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present disclosure may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 1702, and the processor 1701 reads the information in the memory 1702, and completes the steps of the above method in combination with its hardware.

Optionally, as another embodiment, the method further includes:

Optionally, as another embodiment, the determining that the terminal uses the precoding matrix switching diversity to send the uplink channel includes:

Optionally, as another embodiment, after receiving the uplink channel sent by the terminal based on the at least two resource group sets, the method further includes:

The base station provided by the above embodiments of the present disclosure is used to execute the method described in the above corresponding embodiment, and the specific steps of executing the method described in the above corresponding embodiment by the device provided in this embodiment are the same as the above corresponding embodiment, and achieve the same technical effect, which is not repeated here.

The above has mainly introduced the solutions provided by the embodiments of the present disclosure from the perspective of electronic devices (mobile terminals and base stations). It can be understood that, in order to realize the above-mentioned functions, the electronic device provided by the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present disclosure can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed in the present disclosure.

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 this disclosure.

In the embodiments of the present disclosure, functional modules can be divided into electronic devices and the like according to the foregoing method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing 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.

It should be noted that, the division of modules in the embodiments of the present disclosure is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

Those skilled in the art can clearly understand that, for the convenience and conciseness of the description, only the division of the above-mentioned functional modules is used for illustration. In practical applications, the above-mentioned functions can be allocated to different functional modules as required. The internal structure of the device is divided into different functional modules 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 the present disclosure, it should be understood that the disclosed 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 indirect coupling or communication connection of devices or units through some interfaces.

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 disclosure 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 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, 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, and includes several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present disclosure. The computer storage medium is a non-transitory (English: nontransitory) medium, including: flash memory, removable hard disk, read-only memory, random access memory, magnetic disk or optical disk and other mediums that can store program codes.

On the other hand, an embodiment of the present disclosure also provides a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, when the program instructions When executed by a computer, the computer can execute the signal transmission method provided by the above method embodiments, and the method includes:

The uplink channel is transmitted in diversity through the set of antennas.

or include:

On the other hand, an embodiment of the present disclosure further provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to execute the methods provided by the foregoing embodiments, including:

The uplink channel is transmitted in diversity through the set of antennas.

or include:

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, but not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

A method for transmitting an uplink channel, comprising:

After determining that the uplink channel is sent using the precoding matrix switching diversity, the resources used for transmitting the uplink channel are divided into at least two resource groups, and each resource group is mapped to the antenna set by precoding based on the precoding matrix; the antenna set includes multiple physical antennas or multiple antenna ports;

The uplink channel is transmitted in diversity through the set of antennas.
The method for transmitting an uplink channel according to claim 1, wherein the dividing the resources used for transmitting the uplink channel into at least two resource groups comprises:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of divisions in the time domain and the number of divisions in the frequency domain; or

Based on the determined number of resource groups, the resources used for transmitting uplink channels are divided into at least two resource groups; wherein, the number of resource groups is predefined or notified by the base station; and, each resource group The occupied resources are determined based on the uplink channel resources and the number of resource groups.
The method for transmitting an uplink channel according to claim 2, wherein, based on the number of the resources used for transmitting the uplink channel divided in the time domain and the number of divisions in the frequency domain, the The resources used to transmit uplink channels are divided into at least two resource groups, including:

determining that the resources used for transmitting uplink channels are divided into a preset number X in the time domain, and determining that the resources used for transmitting uplink channels are divided into a preset number Y in the frequency domain;

based on the preset number X and the preset number Y, dividing the resources for transmitting the uplink channel to obtain at least two resource groups;

Wherein, X is a predefined value or a value notified by the base station or a value determined based on the number of DMRS symbols of the demodulation reference signal and/or uplink channel format, and Y is a predefined value or a value notified by the base station or based on the number of resource blocks RB included in the uplink channel number to determine the value.
The method for transmitting an uplink channel according to claim 3, wherein the method further comprises:

If the uplink channel is configured for repeated transmission, the value of X is determined to be an integer value smaller than or equal to the number of repeated transmissions A on the uplink channel, or an even multiple of the number of repeated transmissions of the uplink channel.
The method for transmitting an uplink channel according to claim 2, wherein the determined number of resource groups is a small value between the first number and the second number;

The first number is the preset number Z of resource groups, and the second number is based on the number N of DMRS symbols included in the uplink channel, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel Sure.
The method for transmitting an uplink channel according to claim 5, wherein the second number is calculated and determined according to the following formula, the second number=min(N,x)*A*B, where the value of x is The value is 2 or 4;

If the determined number of resource groups is the second number, each RB of the uplink channel in each uplink channel repetition time slot includes min(N, x) resource groups, and each resource group contains min(N, x) resource groups. Contains one RB and N/x DMRS symbols.
The method for transmitting an uplink channel according to claim 5, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups further comprises:

If the determined number of resource groups is the first number, the repeated transmission is first divided into different resource groups, then different RBs are divided into different resource groups, and then the resources in each RB are divided into different resource groups In the order of , the resources used for transmitting the uplink channel are divided into Z resource groups.
The method for transmitting an uplink channel according to claim 1, wherein the mapping of each resource group to an antenna set through precoding based on a precoding matrix comprises:

The precoding is digital domain precoding or analog precoding, the digital domain precoding is mapped to the antenna set through a precoding matrix, and the analog precoding is mapped to the antenna set through spatial domain related information.
The uplink channel transmission method according to claim 1 or 8, wherein the precoding matrix is randomly selected in at least two resource groups, or the precoding matrix is based on precoding in at least two resource groups The defined order is used.
The uplink channel transmission method according to claim 1 or 8, wherein the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.
The transmission method of the uplink channel according to any one of claims 1 to 8, wherein the determining to use the precoding matrix switching diversity to send the uplink channel comprises:

Based on the instructions of the base station or the stipulations of the protocol, when a common cyclic prefix is used, it is determined to only use the transmit diversity of precoding matrix switching for the uplink channel with a length of 10 to 14 symbols; or

Based on the instruction of the base station or the stipulations of the protocol, when the extended cyclic prefix is used, it is determined to only use the transmit diversity of the precoding matrix switching for the uplink channel with the length of 10 to 12 symbols; or

Based on the instructions of the base station or the provisions of the protocol, determine the transmit diversity using precoding matrix switching only for a specific uplink channel format; or

Based on the instruction of the base station or the stipulation of the protocol, only for the uplink channel with frequency hopping in the time slot, the transmit diversity using the precoding matrix switching is determined.
A method for transmitting an uplink channel, comprising:

After determining that the terminal uses the precoding matrix switching diversity to send the uplink channel, divide the resources used for transmitting the uplink channel into at least two resource groups;

The uplink channel sent by the terminal is received based on the at least two resource group sets; wherein, the uplink channel is that the terminal divides the resources used for transmitting the uplink channel into at least two resource groups, and is based on After the precoding matrix maps each resource group to an antenna set through precoding, it is sent through the antenna set diversity; the antenna set includes multiple physical antennas or multiple antenna ports.
The method for transmitting an uplink channel according to claim 12, wherein the dividing the resources used for transmitting the uplink channel into at least two resource groups comprises:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of divisions in the time domain and the number of divisions in the frequency domain; or

Based on the determined number of resource groups, the resources used for transmitting the uplink channel are divided into at least two resource groups; wherein the number of resource groups is predefined or set by the base station, and accordingly, the resource is sent to the terminal. The number of the set resource groups, so that the terminal divides the resources for transmitting the uplink channel into at least two resource groups based on the number of the resource groups; and, the resources occupied by each resource group are based on the uplink channel. The number of channel resources and resource groups is determined.
The method for transmitting an uplink channel according to claim 13, wherein, based on the number of the resources used for transmitting the uplink channel divided in the time domain and the number of divisions in the frequency domain, the The resources used to transmit uplink channels are divided into at least two resource groups, including:

determining that the resources used for transmitting uplink channels are divided into a preset number X in the time domain, and determining that the resources used for transmitting uplink channels are divided into a preset number Y in the frequency domain;

based on the preset number X and the preset number Y, dividing the resources for transmitting the uplink channel to obtain at least two resource groups;

Wherein, X is a predefined value, or a value determined based on the number of demodulation reference signal DMRS symbols and/or uplink channel format, or a value set by the base station, correspondingly, the set value of X is sent to the terminal to enable the terminal to determine the The resources used to transmit the uplink channel are divided into a preset number X in the time domain; Y is a predefined value, or a value determined based on the number of resource blocks RB included in the uplink channel, or a value set by the base station, correspondingly, to the terminal The set value of Y is sent, so that the terminal determines that the resource for transmitting the uplink channel is divided into a preset number Y in the frequency domain.
The method for transmitting an uplink channel according to claim 14, wherein the method further comprises:

If the uplink channel is configured for repeated transmission, the value of X is determined to be an integer value less than or equal to the number of repeated transmissions A on the uplink channel, or an even multiple of the number of repeated transmissions of the uplink channel.
The method for transmitting an uplink channel according to claim 13, wherein the determined number of resource groups is a small value between the first number and the second number;

The first number is the preset number Z of resource groups, and the second number is based on the number N of DMRS symbols included in the uplink channel, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel Sure.
The method for transmitting an uplink channel according to claim 16, wherein the second number is calculated and determined according to the following formula, the second number=min(N,x)*A*B, where the value of x is The value is 2 or 4;

If the determined number of resource groups is the second number, each RB of the uplink channel in each uplink channel repetition time slot includes min(N, x) resource groups, and each resource group contains min(N, x) resource groups. Contains one RB and N/x DMRS symbols.
The method for transmitting an uplink channel according to claim 16, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups, further comprising:

If the determined number of resource groups is the first number, the repeated transmission is first divided into different resource groups, then different RBs are divided into different resource groups, and then the resources in each RB are divided into different resource groups In the order of , the resources used for transmitting the uplink channel are divided into Z resource groups.
The method for transmitting an uplink channel according to any one of claims 12 to 18, wherein the determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel comprises:

Determine the terminal based on the provisions of the protocol or instruct the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 14 symbols when using a common cyclic prefix; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 12 symbols when the extended cyclic prefix is used; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to determine transmit diversity using precoding matrix switching only for a specific uplink channel format; or

It is determined that the terminal determines the transmit diversity using precoding matrix switching based on the provisions of the protocol or instructing the terminal to only use the uplink channel of frequency hopping in the time slot.
The method for transmitting an uplink channel according to claim 12, wherein after the uplink channel sent by the terminal is received based on the at least two resource group sets, the method further comprises:

Independent channel estimation is performed for the at least two resource groups.
A terminal, characterized in that it includes:

The first division module is configured to divide the resources used for transmitting the uplink channel into at least two resource groups after determining that the uplink channel is sent using the precoding matrix switching diversity, and precoding each resource group based on the precoding matrix Mapped to an antenna set; the antenna set includes multiple physical antennas or multiple antenna ports;

A sending module, configured to send the uplink channel in diversity through the antenna set.
The terminal according to claim 21, wherein the first dividing module is further configured to:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of divisions in the time domain and the number of divisions in the frequency domain; or

Based on the determined number of resource groups, the resources used for transmitting uplink channels are divided into at least two resource groups; wherein, the number of resource groups is predefined or notified by the base station; and, each resource group The occupied resources are determined based on the uplink channel resources and the number of resource groups.
The terminal according to claim 22, wherein the first dividing module is further configured to:

determining that the resources used for transmitting uplink channels are divided into a preset number X in the time domain, and determining that the resources used for transmitting uplink channels are divided into a preset number Y in the frequency domain;

based on the preset number X and the preset number Y, dividing the resources for transmitting the uplink channel to obtain at least two resource groups;

Wherein, X is a predefined value or a value notified by the base station or a value determined based on the number of DMRS symbols of the demodulation reference signal and/or uplink channel format, and Y is a predefined value or a value notified by the base station or based on the number of resource blocks RB included in the uplink channel number to determine the value.
The terminal according to claim 23, wherein the terminal further comprises:

A first determining module, configured to determine that the value of X is an integer value less than or equal to the number of repeated transmissions A of the uplink channel, or an even multiple of the number of repeated transmissions of the uplink channel, if the uplink channel is configured for repeated transmission .
The terminal according to claim 22, wherein the determined number of resource groups is a small value between the first number and the second number;

The first number is the preset number Z of resource groups, and the second number is based on the number N of DMRS symbols included in the uplink channel, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel Sure.
The terminal according to claim 25, wherein the second number is calculated and determined according to the following formula, the second number=min(N,x)*A*B, wherein the value of x is 2 or 4;

If the determined number of resource groups is the second number, each RB of the uplink channel in each uplink channel repetition time slot includes min(N, x) resource groups, and each resource group contains min(N, x) resource groups. Contains one RB and N/x DMRS symbols.
The terminal according to claim 25, wherein the first dividing module is further configured to:

If the determined number of resource groups is the first number, the repeated transmission is first divided into different resource groups, then different RBs are divided into different resource groups, and then the resources in each RB are divided into different resource groups In the order of , the resources used for transmitting the uplink channel are divided into Z resource groups.
The terminal according to claim 21, wherein the first dividing module is further configured to:

The precoding is digital domain precoding or analog precoding, the digital domain precoding is mapped to the antenna set through a precoding matrix, and the analog precoding is mapped to the antenna set through spatial domain related information.
The terminal according to claim 21 or 28, wherein the precoding matrix is randomly selected in at least two resource groups, or the precoding matrix is used based on a predefined order in at least two resource groups .
The terminal according to claim 21 or 28, wherein the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.
The terminal according to any one of claims 21 to 28, wherein the first division module is further configured to:

Based on the instructions of the base station or the stipulations of the protocol, when a common cyclic prefix is used, it is determined to only use the transmit diversity of precoding matrix switching for the uplink channel with a length of 10 to 14 symbols; or

Based on the instruction of the base station or the stipulations of the protocol, when the extended cyclic prefix is used, it is determined to only use the transmit diversity of the precoding matrix switching for the uplink channel with the length of 10 to 12 symbols; or

Based on the instructions of the base station or the provisions of the protocol, determine the transmit diversity using precoding matrix switching only for a specific uplink channel format; or

Based on the instruction of the base station or the stipulation of the protocol, only for the uplink channel with frequency hopping in the time slot, the transmit diversity using the precoding matrix switching is determined.
A terminal, comprising a memory, a processor and a program stored in the memory and running on the processor, wherein the processor implements the following steps when executing the program:

After determining that the uplink channel is sent using the precoding matrix switching diversity, the resources used for transmitting the uplink channel are divided into at least two resource groups, and each resource group is mapped to the antenna set by precoding based on the precoding matrix; the antenna set includes multiple physical antennas or multiple antenna ports;

The uplink channel is transmitted in diversity through the set of antennas.
The terminal according to claim 32, wherein the dividing the resources used for transmitting the uplink channel into at least two resource groups comprises:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of divisions in the time domain and the number of divisions in the frequency domain; or

Based on the determined number of resource groups, the resources used for transmitting uplink channels are divided into at least two resource groups; wherein, the number of resource groups is predefined or notified by the base station; and, each resource group The occupied resources are determined based on the uplink channel resources and the number of resource groups.
The terminal according to claim 33, wherein, based on the number of the resources used for transmitting uplink channels divided in the time domain and the number of resources divided in the frequency domain, the resources used for transmitting uplink channels are divided into The resources of the channel are divided into at least two resource groups, including:

determining that the resources used for transmitting uplink channels are divided into a preset number X in the time domain, and determining that the resources used for transmitting uplink channels are divided into a preset number Y in the frequency domain;

based on the preset number X and the preset number Y, dividing the resources for transmitting the uplink channel to obtain at least two resource groups;

Wherein, X is a predefined value or a value notified by the base station or a value determined based on the number of DMRS symbols of the demodulation reference signal and/or uplink channel format, and Y is a predefined value or a value notified by the base station or based on the number of resource blocks RB included in the uplink channel number to determine the value.
The terminal according to claim 34, wherein the step further comprises:

If the uplink channel is configured for repeated transmission, the value of X is determined to be an integer value less than or equal to the number of repeated transmissions A on the uplink channel, or an even multiple of the number of repeated transmissions of the uplink channel.
The terminal according to claim 33, wherein the determined number of resource groups is a small value between the first number and the second number;

The first number is the preset number Z of resource groups, and the second number is based on the number N of DMRS symbols included in the uplink channel, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel Sure.
The terminal according to claim 36, wherein the second number is calculated and determined according to the following formula, the second number=min(N,x)*A*B, wherein the value of x is 2 or 4;

If the determined number of resource groups is the second number, each RB of the uplink channel in each uplink channel repetition time slot includes min(N, x) resource groups, and each resource group contains min(N, x) resource groups. Contains one RB and N/x DMRS symbols.
The terminal according to claim 36, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups further comprises:

If the determined number of resource groups is the first number, the repeated transmission is first divided into different resource groups, then different RBs are divided into different resource groups, and then the resources in each RB are divided into different resource groups In the order of , the resources used for transmitting the uplink channel are divided into Z resource groups.
The terminal according to claim 32, wherein the mapping of each resource group to an antenna set through precoding based on a precoding matrix comprises:

The precoding is digital domain precoding or analog precoding, the digital domain precoding is mapped to the antenna set through a precoding matrix, and the analog precoding is mapped to the antenna set through spatial domain related information.
The terminal according to claim 32 or 39, wherein the precoding matrix is randomly selected in at least two resource groups, or the precoding matrix is used based on a predefined order in at least two resource groups .
The terminal according to claim 32 or 39, wherein the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.
The terminal according to any one of claims 32 to 39, wherein the determining to use precoding matrix switching diversity to transmit an uplink channel comprises:

Based on the instructions of the base station or the stipulations of the protocol, when a common cyclic prefix is used, it is determined to only use the transmit diversity of precoding matrix switching for the uplink channel with a length of 10 to 14 symbols; or

Based on the instruction of the base station or the stipulations of the protocol, when the extended cyclic prefix is used, it is determined to only use the transmit diversity of the precoding matrix switching for the uplink channel with the length of 10 to 12 symbols; or

Based on the instructions of the base station or the provisions of the protocol, the transmit diversity using precoding matrix switching is determined only for a specific uplink channel format; or

Based on the instruction of the base station or the stipulation of the protocol, only for the uplink channel with frequency hopping in the time slot, the transmit diversity using the precoding matrix switching is determined.
A base station, characterized in that it includes:

a second division module, configured to divide the resources used for transmitting the uplink channel into at least two resource groups after determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel;

a receiving module, configured to receive the uplink channel sent by the terminal based on the at least two resource group sets; wherein, the uplink channel is the terminal that divides the resource used for transmitting the uplink channel into at least two resource groups, and each resource group is mapped to an antenna set through precoding based on a precoding matrix, and then sent through the antenna set diversity; the antenna set includes multiple physical antennas or multiple antenna ports.
The base station according to claim 43, wherein the second dividing module is further configured to:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of divisions in the time domain and the number of divisions in the frequency domain; or

Based on the determined number of resource groups, the resources used for transmitting the uplink channel are divided into at least two resource groups; wherein the number of resource groups is predefined or set by the base station, and accordingly, the resource is sent to the terminal. The number of the set resource groups, so that the terminal divides the resources for transmitting the uplink channel into at least two resource groups based on the number of the resource groups; and, the resources occupied by each resource group are based on the uplink channel. The number of channel resources and resource groups is determined.
The base station according to claim 44, wherein the second dividing module is further configured to:

determining that the resources used for transmitting uplink channels are divided into a preset number X in the time domain, and determining that the resources used for transmitting uplink channels are divided into a preset number Y in the frequency domain;

based on the preset number X and the preset number Y, dividing the resources for transmitting the uplink channel to obtain at least two resource groups;

Wherein, X is a predefined value, or a value determined based on the number of demodulation reference signal DMRS symbols and/or uplink channel format, or a value set by the base station, correspondingly, the set value of X is sent to the terminal to enable the terminal to determine the The resources used to transmit the uplink channel are divided into a preset number X in the time domain; Y is a predefined value, or a value determined based on the number of resource blocks RB included in the uplink channel, or a value set by the base station, correspondingly, to the terminal The set value of Y is sent, so that the terminal determines that the resource for transmitting the uplink channel is divided into a preset number Y in the frequency domain.
The base station according to claim 45, wherein the base station further comprises:

The second determining module is configured to determine that the value of X is an integer value less than or equal to the number of repeated transmissions A on the uplink channel, or an even multiple of the number of repeated transmissions A on the uplink channel if the uplink channel is configured for repeated transmission .
The base station according to claim 44, wherein the determined number of resource groups is a small value between the first number and the second number;

The first number is the preset number Z of resource groups, and the second number is based on the number N of DMRS symbols included in the uplink channel, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel Sure.
The base station according to claim 47, wherein the second number is calculated and determined according to the following formula, the second number=min(N,x)*A*B, wherein the value of x is 2 or 4;

If the determined number of resource groups is the second number, each RB of the uplink channel in each uplink channel repetition time slot includes min(N, x) resource groups, and each resource group contains min(N, x) resource groups. Contains one RB and N/x DMRS symbols.
The base station according to claim 47, wherein the second dividing module is further configured to:

If the determined number of resource groups is the first number, the repeated transmission is first divided into different resource groups, then different RBs are divided into different resource groups, and then the resources in each RB are divided into different resource groups In the order of , the resources used for transmitting the uplink channel are divided into Z resource groups.
The base station according to any one of claims 43 to 49, wherein the second dividing module is further configured to:

Determine the terminal based on the provisions of the protocol or instruct the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 14 symbols when using a common cyclic prefix; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 12 symbols when the extended cyclic prefix is used; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to determine transmit diversity using precoding matrix switching only for a specific uplink channel format; or

It is determined that the terminal determines the transmit diversity using precoding matrix switching based on the provisions of the protocol or instructing the terminal to only use the uplink channel of frequency hopping in the time slot.
The base station according to claim 43, wherein the base station further comprises:

A channel estimation module, configured to perform independent channel estimation on the at least two resource groups after receiving the uplink channel sent by the terminal based on the at least two resource group sets.
A base station, comprising a memory, a processor and a program stored in the memory and running on the processor, wherein the processor implements the following steps when executing the program:

After determining that the terminal uses the precoding matrix switching diversity to send the uplink channel, divide the resources used for transmitting the uplink channel into at least two resource groups;

The uplink channel sent by the terminal is received based on the at least two resource group sets; wherein, the uplink channel is that the terminal divides the resources used for transmitting the uplink channel into at least two resource groups, and is based on After the precoding matrix maps each resource group to an antenna set through precoding, it is sent through the antenna set diversity; the antenna set includes multiple physical antennas or multiple antenna ports.
The base station according to claim 52, wherein the dividing the resources used for transmitting the uplink channel into at least two resource groups comprises:

dividing the resources for transmitting uplink channels into at least two resource groups based on the number of divisions in the time domain and the number of divisions in the frequency domain; or

Based on the determined number of resource groups, the resources used for transmitting the uplink channel are divided into at least two resource groups; wherein the number of resource groups is predefined or set by the base station, and accordingly, the resource is sent to the terminal. The number of the set resource groups, so that the terminal divides the resources for transmitting the uplink channel into at least two resource groups based on the number of the resource groups; and, the resources occupied by each resource group are based on the uplink channel. The number of channel resources and resource groups is determined.
The base station according to claim 53, wherein, based on the number of the resources used for transmitting uplink channels divided in the time domain and the number of resources divided in the frequency domain, the resources used for transmitting uplink channels are divided into The resources of the channel are divided into at least two resource groups, including:

determining that the resources used for transmitting uplink channels are divided into a preset number X in the time domain, and determining that the resources used for transmitting uplink channels are divided into a preset number Y in the frequency domain;

based on the preset number X and the preset number Y, dividing the resources for transmitting the uplink channel to obtain at least two resource groups;

Wherein, X is a predefined value, or a value determined based on the number of demodulation reference signal DMRS symbols and/or uplink channel format, or a value set by the base station, correspondingly, the set value of X is sent to the terminal to enable the terminal to determine the The resources used to transmit the uplink channel are divided into a preset number X in the time domain; Y is a predefined value, or a value determined based on the number of resource blocks RB included in the uplink channel, or a value set by the base station, correspondingly, to the terminal The set value of Y is sent, so that the terminal determines that the resource for transmitting the uplink channel is divided into a preset number Y in the frequency domain.
The base station according to claim 54, wherein the step further comprises:

If the uplink channel is configured for repeated transmission, the value of X is determined to be an integer value less than or equal to the number of repeated transmissions A on the uplink channel, or an even multiple of the number of repeated transmissions of the uplink channel.
The base station according to claim 53, wherein the determined number of resource groups is a small value between the first number and the second number;

The first number is the preset number Z of resource groups, and the second number is based on the number N of DMRS symbols included in the uplink channel, the number of repetitions A of the uplink channel, and the number B of RBs included in the uplink channel Sure.
The base station according to claim 56, wherein the second number is calculated and determined according to the following formula, the second number=min(N,x)*A*B, where x is 2 or 4;

If the determined number of resource groups is the second number, each RB of the uplink channel in each uplink channel repetition time slot includes min(N, x) resource groups, and each resource group contains min(N, x) resource groups. Contains one RB and N/x DMRS symbols.
The base station according to claim 56, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups further comprises:

If the determined number of resource groups is the first number, the repeated transmission is first divided into different resource groups, then different RBs are divided into different resource groups, and then the resources in each RB are divided into different resource groups In the order of , the resources used for transmitting the uplink channel are divided into Z resource groups.
The base station according to any one of claims 52 to 58, wherein the determining that the terminal uses precoding matrix switching diversity to transmit an uplink channel comprises:

Determine the terminal based on the provisions of the protocol or instruct the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 14 symbols when using a common cyclic prefix; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to use the transmit diversity of precoding matrix switching only for the uplink channel with a length of 10 to 12 symbols when the extended cyclic prefix is used; or

Determining that the terminal is based on the provisions of the protocol or instructing the terminal to determine transmit diversity using precoding matrix switching only for a specific uplink channel format; or

It is determined that the terminal determines the transmit diversity using precoding matrix switching based on the provisions of the protocol or instructing the terminal to only use the uplink channel of frequency hopping in the time slot.
The base station according to claim 52, wherein after receiving the uplink channel sent by the terminal based on the at least two resource component sets, the step further comprises:

Independent channel estimation is performed for the at least two resource groups.
A non-transitory computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the uplink channel transmission method according to any one of claims 1 to 11 are implemented .
A non-transitory computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the uplink channel transmission method according to any one of claims 12 to 20 are implemented .