WO2021121053A1

WO2021121053A1 - Uplink control channel transmission method, terminal, and base station

Info

Publication number: WO2021121053A1
Application number: PCT/CN2020/133874
Authority: WO
Inventors: 王菡凝; 李岩; 金婧; 郑毅; 王启星; 刘光毅
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2019-12-19
Filing date: 2020-12-04
Publication date: 2021-06-24
Also published as: CN113014360B; CN113014360A

Abstract

Provided are an uplink control channel transmission method, a terminal, and a base station. The method comprises: when HARQ ACK feedback is performed on at least two base stations, if there is a conflict between transmission resources of PUCCHs indicated in DCI sent by the at least two base stations, performing PUCCH transmission in a first base station by means of a target transmission slot; determining a preset transmission slot, which follows the target transmission slot, for PUCCH transmission in a second base station; and performing, according to the determined preset transmission slot, the PUCCH transmission, which bears the current HARQ ACK to be transmitted, in the second base station.

Description

Uplink control channel transmission method, terminal and base station

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 201911316649.3 filed in China on December 19, 2019, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the field of wireless technology, in particular to an uplink control channel transmission method, terminal and base station.

Background technique

Multipoint transmission technology is coordinated transmission through multiple nodes in a mobile network. Due to the problems of interference and low coverage quality at the edge of the base station in the cellular network, the spectrum efficiency and system throughput of the terminal at the cell edge are poor, which limits the system performance. The multipoint transmission technology utilizes multi-cell cooperation to improve the spectrum efficiency and system throughput of edge users.

At low frequencies, multipoint transmission technology can better overcome inter-cell interference and improve the transmission efficiency of edge users. At high frequencies, multipoint transmission technology is improving the rate experience of edge users, enhancing edge coverage, and providing edge users with an experience consistent with that of central users.

Among them, the downlink multipoint transmission technology includes Non-Coherent Joint Transmission (Non Coherent Joint Transmission), in which users receive different Physical Downlink Shared Channel (PDSCH) data information transmitted from multiple base stations, one of which is In this, each transmission base station can send separate Downlink Control Information (DCI) for users, and independently transmit different data streams. Among them, after the user establishes initial connections with different base stations, the channel information (including the number of streams, RI, etc.) is fed back to the different base stations, scheduling and data transmission are performed independently, and one codeword is used to transmit single-stream or multi-stream data.

In the above transmission technology, for Hybrid Automatic Repeat request Acknowledgement (HARQ ACK) feedback, the user carries the feedback information on the Physical Uplink Control Channel (PUCCH) and feeds it back to the base station. The PUCCH resource is indicated by the corresponding field in the DCI when the base station sends a Physical Downlink Control Channel (PDCCH) to the user.

For non-ideal non-ideal backhaul non-coherent transmission, when multi-point transmission is currently supported, the time domain resource allocation of PUCCH may cause resource conflicts. When the time domain resources of the PUCCH indicated by two or more base stations for the user through the DCI respectively overlap, the user cannot transmit two PUCCHs on the same time domain resource.

Summary of the invention

The purpose of the technical solution of the present disclosure is to provide an uplink control channel transmission method, terminal and base station, which are used to solve the related technology multi-point transmission technology, when two or more base stations respectively use the PUCCH indicated by the DCI for the user When the time domain resources overlap, the user cannot transmit two PUCCHs on the same time domain resource.

The present disclosure provides a transmission method of an uplink control channel, which is applied to a terminal, wherein the method includes:

When performing hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations conflict, pass the first base station PUCCH transmission of the first base station in the target transmission time slot indicated by the DCI;

Determining a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot;

According to the determined preset transmission time slot, perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted.

Optionally, the first base station and the second base station are respectively one of the at least two base stations, and the first base station has the highest priority among the at least two base stations.

Optionally, in the uplink control channel transmission method, determining the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot includes:

Determining multiple preset transmission time slots after the target transmission time slot;

Wherein, the performing PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot includes:

Perform PUCCH transmission of the second base station in each of the preset transmission time slots in sequence, until the second base station carries the PUCCH currently to be transmitted HARQ ACK successfully, or multiple preset transmission time slots are transmitted complete.

Optionally, in the uplink control channel transmission method, the determining the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot includes:

Determine the preset transmission time slot according to high-layer signaling configuration parameters; or

After determining the target transmission time slot, a time slot in which there is no transmission conflict is the preset transmission time slot.

Optionally, in the uplink control channel transmission method, the high-layer signaling configuration parameter includes at least one of the following information:

At least two time slot intervals for HARQ ACK feedback;

The second base station delays the first interval value for PUCCH transmission and the maximum number of transmissions for repeated PUCCH transmission compared to the first base station;

Compared with the first base station, the second base station delays a second interval value for PUCCH transmission and a maximum delayed transmission interval for PUCCH repeated transmission.

Optionally, in the uplink control channel transmission method, when the high-level signaling configuration parameter includes at least two of the time slot intervals, the determined preset transmission time slot is: when the target transmits The slots are respectively increased by at least two time slots determined by each time slot interval arranged after the target time slot interval in the time slot interval; wherein, the target time slot interval is the time corresponding to the target transmission time slot Gap interval.

Optionally, in the uplink control channel transmission method, when the high-level signaling configuration parameters include the first interval value and the maximum number of transmissions, the determined preset transmission time slot is:

The target transmission time slot is sequentially increased by a time slot determined when the first interval value is added, and the determined number of the preset transmission time slot is less than or equal to the maximum number of transmissions.

Optionally, in the uplink control channel transmission method, when the high-level signaling configuration parameters include the second interval value and the maximum delay transmission interval, the determined preset transmission time slot is:

The time slot determined when the target transmission time slot is sequentially increased by the second interval value, and the time slot interval between the last predetermined transmission time slot and the target transmission time slot is determined It is less than or equal to the maximum delay transmission interval.

Optionally, the uplink control channel transmission method, wherein the method further includes:

If it is determined that the preset transmission time slot does not exist after the target transmission time slot, the PUCCH transmission used to carry the HARQ ACK currently to be transmitted is abandoned.

Optionally, in the uplink control channel transmission method, the transmission of the PUCCH carrying the HARQ ACK currently to be transmitted by the second base station according to the determined preset transmission time slot includes:

Adding the HARQ ACK currently to be transmitted after the codebook to be transmitted in the preset transmission time slot to obtain a total codebook;

In the preset transmission time slot, perform PUCCH transmission of the second base station carrying the total codebook.

The first base station is determined according to at least one arrangement rule of channel condition priority, base station service type priority, and base station type priority.

The embodiment of the present disclosure also provides an uplink control channel transmission method, which is applied to a base station, wherein the method includes:

After sending the downlink control information DCI to the terminal, detecting the physical uplink control channel PUCCH information of the terminal on the target transmission time slot indicated by the DCI;

If no PUCCH information is detected on the target transmission time slot, the PUCCH information of the terminal is detected in a preset transmission time slot after the target transmission time slot.

If PUCCH information is not detected on the target transmission time slot, determine multiple preset transmission time slots after the target transmission time slot;

Wherein, detecting the PUCCH information of the terminal in the preset transmission time slot after the target transmission time slot includes:

The PUCCH information of the terminal is detected sequentially on each of the preset transmission time slots, until the PUCCH information of the terminal is successfully received, or the detection of multiple preset transmission time slots is completed.

Determine the preset transmission time slot according to the high-level signaling configuration parameters sent to the terminal in advance; or

Each time slot after the target transmission time slot is determined to be the preset transmission time slot.

Optionally, in the uplink control channel transmission method, the pre-configured high-layer signaling configuration parameters include at least one of the following information:

The terminal performs a hybrid automatic repeat request to confirm at least two time slot intervals for HARQ ACK feedback;

Delaying the first interval value for PUCCH transmission and the maximum number of transmissions for repeated PUCCH transmission;

Delay the second interval value for PUCCH transmission and the maximum delayed transmission interval for repeated PUCCH transmission.

Optionally, in the uplink control channel transmission method, wherein the predetermined transmission time slot is determined according to at least two time slot intervals in the pre-configured high-level signaling configuration parameters. Suppose the transmission time slot is:

The target transmission time slot is increased by at least two time slots determined by each time slot interval arranged after the target time slot interval in the time slot interval respectively; wherein, the target time slot interval is the same as the target transmission time slot interval. The time slot interval corresponding to the time slot.

Optionally, the transmission method of the uplink control channel, wherein the preset transmission time slot is determined according to the first interval value and the maximum number of transmissions in the pre-configured high-layer signaling configuration parameters When, the determined preset transmission time slot is:

The time slots of the first interval value are sequentially increased by the target transmission time slots, and the determined number of the preset transmission time slots is less than or equal to the maximum number of transmissions.

Optionally, the uplink control channel transmission method, wherein the preset transmission time is determined according to the second interval value and the maximum delay transmission interval in the pre-configured high-layer signaling configuration parameters During the time slot, the determined preset transmission time slot is:

The time slots determined when the target transmission time slot is sequentially increased by the second interval value, and the time slot interval between the last determined preset transmission time slot and the target transmission time slot is less than Or equal to the maximum delay transmission interval.

Optionally, in the uplink control channel transmission method, the detection of the PUCCH information of the terminal in the preset transmission time slot after the target transmission time slot includes:

Performing first codebook length detection, where the first codebook length is equal to the length of the HARQ ACK codebook that should be received in the setting of the preset transmission time slot;

Perform a second codebook length detection. The second codebook length is equal to the length of the HARQ ACK codebook that should be received in the setting of the preset transmission time slot and the length of the HARQ ACK codebook that should be received in the target transmission time slot. The sum of the lengths.

The embodiment of the present disclosure also provides a terminal, including a processor and a transceiver, wherein:

The transceiver is used to, when performing hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations exist If there is a conflict, the PUCCH transmission of the first base station is performed through the target transmission time slot indicated by the DCI of the first base station;

The processor is configured to determine a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot; and

An embodiment of the present disclosure also provides a base station, including a processor, where the processor is configured to:

The embodiment of the present disclosure also provides an uplink control channel transmission device, which is applied to a terminal, wherein the device includes:

The first transmission module is used to perform hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations exist If there is a conflict, the PUCCH transmission of the first base station is performed through the target transmission time slot indicated by the DCI of the first base station;

A processing module, configured to determine a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot;

The second transmission module is configured to perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot.

The embodiment of the present disclosure also provides an uplink control channel transmission device, which is applied to a base station, wherein the device includes:

The first detection module is configured to detect the physical uplink control channel PUCCH information of the terminal on the target transmission time slot indicated by the DCI after sending the downlink control information DCI to the terminal;

The second detection module is configured to detect PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot if no PUCCH information is detected on the target transmission time slot.

The embodiment of the present disclosure further provides a terminal, which includes: a processor, a memory, and a program stored on the memory and capable of running on the processor. When the program is executed by the processor, any of the above The transmission method of the uplink control channel described in one item.

The embodiment of the present disclosure further provides a base station, which includes: a processor, a memory, and a program stored on the memory and capable of running on the processor, and when the program is executed by the processor, the above The transmission method of the uplink control channel described in one item.

The embodiment of the present disclosure further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the uplink control channel as described in any of the above Steps in the transmission method.

At least one of the above technical solutions of the present disclosure has the following beneficial effects:

According to the uplink control channel transmission method provided by the embodiments of the present disclosure, when the PUCCH transmission resources indicated by the DCI of at least two base stations conflict, the PUCCH transmission of the first base station with the highest priority is given priority, and the first base station with the lower priority is given priority. The second base station adopts the method of delayed transmission of PUCCH to avoid conflicting transmission resources, so as to solve the related technology multipoint transmission technology, when two or more base stations respectively use DCI to indicate the time domain resources of the PUCCH for the user When overlap occurs, the user cannot transmit two PUCCHs on the same time domain resource.

Description of the drawings

FIG. 1 is a schematic diagram of the architecture of a system to which the uplink control channel transmission method according to an embodiment of the disclosure is applied;

FIG. 2 is a schematic flowchart of an uplink control channel transmission method according to one of the embodiments of the present disclosure;

FIG. 3 is a time slot diagram of the first embodiment of the method according to the embodiment of the present disclosure; FIG.

FIG. 4 is a time slot diagram of the second implementation mode of the method according to the embodiment of the present disclosure;

FIG. 5 is a time slot diagram of the third embodiment of the method according to the embodiment of the present disclosure; FIG.

Figure 6 is a time slot diagram for delayed transmission using the method described in an embodiment of the present disclosure;

FIG. 7 is a schematic flowchart of an uplink control channel transmission method according to another embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a terminal according to one of the embodiments of the present disclosure;

FIG. 9 is a schematic structural diagram of a base station according to one of the embodiments of the present disclosure;

FIG. 10 is a schematic structural diagram of an uplink control channel transmission apparatus according to one of the embodiments of the present disclosure;

FIG. 11 is a schematic structural diagram of an uplink control channel transmission apparatus according to another embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a base station according to another embodiment of the disclosure.

Detailed ways

In order to make the technical problems, technical solutions, and advantages to be solved by the present disclosure clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

The transmission method of the uplink control channel described in the embodiment of the present disclosure is applied to a multipoint transmission system. As shown in FIG. 1, in the non-correlated joint transmission mode that adopts the multipoint transmission system, the terminal 10 can communicate with at least two base stations (transmission nodes). ) 20 connections. Optionally, the at least two base stations 20 can respectively establish initial connections with the terminal 10, and the terminal 10 can respectively feed back channel information to the at least two base stations to independently perform scheduling and data transmission.

The base station 20 provided in the embodiments of the present disclosure may be a commonly used base station, an evolved node base station (eNB), or a network side device in a 5G system (for example, a next generation node base station). station (gNB) or transmission and reception point (TRP)) or cell and other equipment.

The terminal 10 provided in the embodiment of the present disclosure may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), etc.

In practical applications, the connection between the above-mentioned various devices may be a wireless connection. In order to conveniently and intuitively indicate the connection relationship between the various devices, a solid line is used in Fig. 1 to indicate.

In order to solve the multipoint transmission technology in the related technology, when two or more base stations respectively indicate the PUCCH transmission resources for the user through the DCI overlap, the user cannot transmit two PUCCHs on the same time domain resource. In the uplink control channel transmission method provided by the embodiments of the present disclosure, when the PUCCH transmission resources indicated by the DCI of at least two base stations conflict, the PUCCH transmission of the first base station with the highest priority is given priority, and the priority is lower. The second base station in, adopts a method of delaying PUCCH transmission to avoid conflicting transmission resources.

Specifically, the uplink control channel transmission method described in one of the embodiments of the present disclosure is applied to a terminal. As shown in FIG. 2, the method includes:

S210. When performing hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations conflict, pass the first PUCCH transmission of the first base station in a target transmission time slot indicated by the DCI of a base station;

S220: Determine a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot;

S230: According to the determined preset transmission time slot, perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted.

Wherein, in step S210, when the terminal receives DCI from at least two base stations and confirms that the PUCCH transmission resources indicated by the DCI of at least two of the base stations conflict, it will be determined according to the preset priority ranking rule. The at least two base stations are prioritized, the first base station with the highest priority is determined, and the transmission resource (target transmission time slot) indicated by the DCI of the first base station is used to preferentially perform PUCCH transmission of the first base station.

In the embodiment of the present disclosure, optionally, the first base station and the second base station are respectively one of the at least two base stations, and the first base station has the highest priority among the at least two base stations

In the embodiments of the present disclosure, optionally, the rule for the terminal to prioritize the base stations includes, but is not limited to, at least one of: channel condition priority, base station service type priority, and base station type priority.

For example, when the channel conditions are prioritized, the at least two base stations are prioritized according to the channel conditions, and the better the channel conditions are, the higher the priority of the base station; when the base station business type is prioritized, the base station business type is prioritized For example, the priority of base stations that provide URLLC (Ultra Reliable & Low Latency Communication) services is higher than the priority of base stations that provide enhanced Mobile Broadband (eMBB) services; When the type is prioritized, the priority is determined according to the type of the base station, for example, the priority of the main serving station is higher than the priority of the cooperative station.

Therefore, optionally, in step S210, the method further includes:

Further, using the uplink control channel transmission method described in the embodiment of the present disclosure, for the PUCCH transmission of the second base station with a lower priority than the first base station, the transmission is delayed to avoid conflicting transmission resources, wherein step S220 , Determining a preset transmission time slot that can be used for PUCCH transmission of the second base station, so as to be able to perform PUCCH transmission of the second base station according to the determined preset transmission time slot.

Specifically, in step S220, determining the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot includes:

Wherein, in step S230, the performing PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot includes:

Perform the PUCCH transmission of the second base station in each of the preset transmission time slots in sequence, until the second base station carries the PUCCH transmission of the HARQ ACK currently to be transmitted successfully, or multiple preset transmission time slots are transmitted complete.

It should be noted that when multiple preset transmission time slots can be determined according to the preset avoidance rule in step S220, the principle of the preset avoidance rule setting is to enable the determined preset transmission time slot to satisfy The PUCCH transmission condition of the second base station will not conflict with the PUCCH transmission of the first base station. Based on the foregoing principles, the avoidance rule can include various forms. The following describes the avoidance rule adopted in the embodiments of the present disclosure with examples, and the details are not limited thereto.

Optionally, in the embodiment of the present disclosure, determining the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot includes:

Optionally, when the preset transmission time slot is determined according to the high-level signaling configuration parameters, the high-level signaling configuration parameters include at least one of the following information:

At least two time slot intervals for HARQ ACK feedback;

In the following, the manners of determining the preset transmission time slot according to the foregoing description will be respectively illustrated.

Implementation mode one

In the first embodiment, the high-level signaling configuration parameters include at least two time slot intervals for HARQ ACK feedback. According to the at least two time slot intervals in the high-level signaling configuration parameters, it can be determined to be used for PUCCH transmission by the second base station. The preset transmission time slot.

Optionally, the high-layer signaling configuration parameter may be the ACK configuration range parameter dl-DataToUL-ACK configured by the high-layer signaling for the terminal. It can be understood that the transmission resource of the PUCCH is indicated by the corresponding field in the DCI (format 1_0/1_1) of the downlink control channel PDCCH sent by the base station to the terminal. Among them, the PDSCH-to-HAQR-timing-indicator field in the DCI combined with the high-level configuration dl-DataToUL-ACK parameter to indicate time domain resources; the PUCCH-resource-resource-indicator field combined with the high-level configuration PUCCH-resource set ResourceSet and resource list ResourceList The parameter indicates frequency domain resources. Specifically, the dl-DataToUL-ACK parameter can include 8 optional time slot intervals (k1, k2,..., k8), where DCI can indicate one of the 8 optional time slot intervals, using Transmission on PUCCH.

In the first embodiment, when the terminal receives DCI from at least two base stations and confirms that the PUCCH transmission resources indicated by the DCI of at least two base stations conflict, it uses the dl-DataToUL-ACK parameter indicated by the DCI The time domain resource (target transmission time slot) corresponding to one time slot interval of the first base station is used for PUCCH transmission of the first base station, and the time domain resource corresponding to the other time slot interval in the dl-DataToUL-ACK parameter (preset transmission time slot) ) Perform PUCCH transmission of the second base station.

Specifically, in the first embodiment, when the high-level signaling configuration parameters include at least two of the above-mentioned time slot intervals, the determined preset transmission time slot is: the target transmission time slot is increased by at least two respectively. A time slot determined by each time slot interval arranged after the target time slot interval among the time slot intervals; wherein, the target time slot interval is a time slot interval corresponding to the target transmission time slot.

For example, referring to Figure 3, when the terminal is connected to TRP1 and TRP2 at the same time, if it receives PDSCH#1 sent by TRP1 and PDSCH#2 sent by TRP2 at the same time in the n=0th time slot, and the DCI1 indication sent by TRP1 The time domain resource for PUCCH transmission is the time slot interval k=4 in the dl-DataToUL-ACK parameter, and the DCI 2 sent by TRP 2 indicates that the time domain resource for PUCCH transmission is also the time slot interval k=4 in the dl-DataToUL-ACK parameter. According to the DCI 1 and DCI 2 sent by TRP1 and TRP2, the n+k=4th time slot is the transmission time slot for the PUCCH transmission of TRP1 and TRP2, so the transmission resources conflict.

Since the priority of TRP1 is higher than TRP2, using the method described in the embodiment of the present disclosure, the terminal chooses to transmit PUCCH#1 preferentially in the n+k=4th time slot.

Further, if the dl-DataToUL-ACK parameter configured for TRP2 by high-layer signaling includes {4,9,14,19...} eight time slot intervals, the time slot interval indicated by DCI 2 corresponds to k=4 The transmission time slot of TRP1 cannot be used for the transmission of PUCCH#2 of TRP1, then the terminal selects the transmission time slot (preset transmission time slot) corresponding to each time slot interval arranged after the time slot interval k=4 for PUCCH# 2 transmission.

Therefore, based on the above, when it is determined that the time slot interval used for PUCCH#1 transmission of TRP1 corresponds to the target transmission time slot, the dl-DataToUL-ACK parameter is arranged after the time slot interval used for PUCCH#1 transmission Each time slot interval of is added to the target transmission time slot to obtain the preset transmission time slot for PUCCH#2 transmission.

Based on the above method, the terminal sequentially selects the dl-DataToUL-ACK parameter, which is arranged in each time slot interval after the time slot interval transmitted by PUCCH#1 of TRP1, determines the corresponding preset transmission time slot, and tries to perform PUCCH# again The transmission of 2 stops until the transmission is successful or there is no optional time slot interval.

Implementation mode two

In the second embodiment, the high-level signaling configuration parameters include: the first interval value for the second base station to delay PUCCH transmission compared to the first base station (for example, it can be represented by k0) and the value for repeating PUCCH transmission. The maximum number of transmissions (for example, it can be represented by m). Among them, the high-level signaling for sending the configuration parameters for the terminal configuration can be PUCCH-Configuration Config signaling, but it is not limited to this signaling.

Based on the second embodiment, when the terminal receives DCI from at least two base stations and confirms that the PUCCH transmission resources indicated by the DCI of at least two base stations conflict, it uses the dl-DataToUL-ACK parameter indicated by the DCI The time domain resource (target transmission time slot) corresponding to a time slot interval of the first base station is used for PUCCH transmission of the first base station, and the second base station’s PUCCH transmission is performed by using the time slot determined by the first interval value in sequence with the target transmission time slot. , And ensure that the number of repeated PUCCH transmissions of the second base station does not exceed the maximum number of transmissions m.

Therefore, when the preset transmission time slot for PUCCH transmission of the second base station is determined according to the first interval value k0 and the maximum number of transmissions m in the high-level signaling configuration parameters, the determined preset transmission time slot is:

For example, referring to Figure 4, when the terminal is connected to TRP1 and TRP2 at the same time, if it receives PDSCH#1 sent by TRP1 and PDSCH#2 sent by TRP2 at the same time in the nth time slot, and the DCI1 sent by TRP1 indicates PUCCH The transmitted time domain resource is the time slot interval k1=4 in the dl-DataToUL-ACK parameter, and the DCI 2 sent by TRP 2 indicates that the time domain resource for PUCCH transmission is also the time slot interval k1=4 in the dl-DataToUL-ACK parameter. According to the DCI 1 and DCI 2 respectively sent by TRP1 and TRP2, the n+k1th time slot is the transmission time slot for PUCCH transmission of TRP1 and TRP2, so transmission resources conflict.

Since the priority of TRP1 is higher than TRP2, using the method described in the embodiment of the present disclosure, the terminal chooses to transmit PUCCH#1 preferentially in the n+k1th time slot.

Further, if the high-level signaling PUCCH-Config of TRP 2 indicates that TRP 2 delays the first interval value of PUCCH transmission k0=5 and the maximum number of PUCCH transmissions m=5, then the terminal can determine that it is in the n+th Every 5 time slots after k1 time slots is the transmission time slot used for PUCCH transmission of TRP 2, and it can be tried in the uplink time slot of every 5 transmission time slots after the n+k1 time slot. Transmit PUCCH#2 until the transmission is successful or the maximum number of transmissions is 5 times.

Using the second embodiment described above, when the PUCCH transmission of the first base station conflicts with the PUCCH transmission of the second base station, the terminal uses the target transmission time slot indicated by DCI 1 to perform the PUCCH transmission of the first base station, and when transmitting with the target Try to transmit PUCCH#2 again on the transmission slot with a slot interval of k0 slots. If there is still resource conflict with other uplink transmissions, try again on the transmission slot with the target transmission slot interval of 2×k0 slots. PUCCH#2, until the transmission is successful, or the maximum number of transmissions m for repeated PUCCH transmission is reached.

Optionally, in this embodiment, the maximum number m of PUCCH repeated transmissions configured by higher layer signaling may be zero. When the maximum number of transmissions m is 0, the terminal can directly abandon the PUCCH transmission of the second base station.

Implementation mode three

In the third embodiment, the high-level signaling configuration parameters include: the second interval value for the second base station to delay PUCCH transmission compared to the first base station (for example, it can be represented by K0) and the value for repeating the PUCCH transmission The maximum delay transmission interval (for example, it can be denoted by K). Among them, the high-level signaling for sending the configuration parameters for the terminal configuration can be PUCCH-Configuration Config signaling, but it is not limited to this signaling.

Based on the third embodiment, when the terminal receives DCI from at least two base stations and confirms that the PUCCH transmission resources indicated by the DCI of at least two base stations conflict, it uses the dl-DataToUL-ACK parameter indicated by the DCI The time domain resource (target transmission time slot) corresponding to a time slot interval of the first base station is used for PUCCH transmission of the first base station, and the second base station’s PUCCH transmission is performed by using the time slot determined by the first interval value in sequence with the target transmission time slot. , And ensure that the maximum delay transmission interval for the second base station to perform PUCCH repeated transmission does not exceed K.

Based on this, when the preset transmission time slot for PUCCH transmission of the second base station is determined according to the second interval value K0 and the maximum delay transmission interval K in the high-level signaling configuration parameters, the determined preset transmission time slot is :

For example, referring to Figure 5, when the terminal is connected to TRP1 and TRP2 at the same time, if it receives PDSCH#1 sent by TRP1 and PDSCH#2 sent by TRP2 at the same time in the nth time slot, and the DCI1 sent by TRP1 indicates PUCCH The transmitted time domain resource is the time slot interval k1=4 in the dl-DataToUL-ACK parameter, and the DCI 2 sent by TRP 2 indicates that the time domain resource for PUCCH transmission is also the time slot interval k1=4 in the dl-DataToUL-ACK parameter. According to the DCI 1 and DCI 2 respectively sent by TRP1 and TRP2, the n+k1th time slot is the transmission time slot for PUCCH transmission of TRP1 and TRP2, so transmission resources conflict.

Further, if the high-level signaling PUCCH-Config of TRP 2 indicates that TRP 2 delays the second interval value of PUCCH transmission K0=5 and the maximum number of delayed transmission intervals for PUCCH repeated transmission K=15, the terminal can determine that it is in the first Every 5 time slots after n+k1 time slots are transmission time slots used for PUCCH transmission of TRP 2 respectively. In the uplink time slots of every 5 transmission time slots after the n+k1 time slot, each time slot is used for PUCCH transmission. You can try to transmit PUCCH#2 until the transmission is successful or the maximum delay transmission interval of 15 time slots is reached.

Using the second embodiment described above, when the PUCCH transmission of the first base station conflicts with the PUCCH transmission of the second base station, the terminal uses the target transmission time slot indicated by DCI 1 to perform the PUCCH transmission of the first base station, and when transmitting with the target Try to transmit PUCCH#2 again on the transmission time slot with a slot interval of K0 time slots. If there is still resource conflict with other uplink transmissions, try again on the transmission time slot with the target transmission time slot interval of 2×K0 time slots. PUCCH#2, until the transmission is successful, or the maximum delay transmission interval K for repeated PUCCH transmission is reached.

Optionally, in this implementation manner, the maximum delayed transmission interval K for repeated PUCCH transmission configured by higher layer signaling may be zero. When the maximum delayed transmission interval K is 0, the terminal can directly abandon the PUCCH transmission of the second base station.

Implementation mode four

In the fourth implementation manner, after the terminal determines the target transmission time slot, a time slot in which there is no transmission conflict is the preset transmission time slot.

Based on this embodiment, the terminal can determine by itself the PUCCH of the base station with low priority in the uplink time slot that is closest to the target transmission time slot and does not conflict, so as to avoid adding the above-mentioned high-level signaling configuration parameters to the high-level signaling. , To achieve the purpose of reducing signaling overhead.

It should be noted that, using the uplink control channel transmission method described in the embodiment of the present disclosure, the terminal and the base station can determine one of the above methods as a preset transmission time slot determination method through a pre-protocol agreement. In this way, the base station and the terminal have the same understanding of PUCCH transmission by the base station with low priority.

Based on the above, the uplink control channel transmission method according to the embodiment of the present disclosure further includes:

Further, in step S230, performing PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot includes:

It should be noted that the codebook to be transmitted is the codebook that should be sent normally in the preset transmission time slot, and the HARQ ACK to be transmitted currently is the codebook that the second base station should send when it conflicts with the first base station. That is, the codebook sent due to avoidance delay, in the embodiment of the present disclosure, the codebook sent due to avoidance delay is added to the end of the codebook normally sent in the preset time slot for transmission.

For example, take Figure 6 as an example. If the terminal receives the transmission of PDSCH1#1 in transmission time slot 0, and when it feeds back the HARQ-ACK of PDSCH1#1 in transmission time slot 4, it conflicts with the PUCCH resources of other base stations. In principle, the HARQ-ACK of PDSCH1#1 is delayed to transmission time slot 9; in transmission time slot 5, the user receives the PDSCH 2#1 transmission from TRP1, and instructs to transmit the HARQ-ACK carrying its HARQ-ACK in transmission time slot 9 PUCCH2#1. If the terminal can normally transmit PUCCH on the resources of the transmission slot 9 (without conflicts with other high-priority base stations), the HARQ-ACK codebook (length 1 bit) of PDSCH1#1 is added to the PDSCH2#1 The HARQ-ACK codebook (length 1 bit) is transmitted at the end.

Using the uplink control channel transmission method provided by the embodiment of the present disclosure, when the PUCCH transmission resources indicated by the DCI of at least two base stations conflict, the PUCCH transmission of the first base station with the highest priority is given priority, and the PUCCH transmission of the first base station with the highest priority is preferred. The second base station adopts the method of delaying PUCCH transmission to avoid conflicting transmission resources, so as to solve the related technology multipoint transmission technology, when two or more base stations respectively use DCI to indicate the time domain of the PUCCH for the user. When resources overlap, users cannot transmit two PUCCHs on the same time domain resource.

One of the embodiments of the present disclosure also provides an uplink control channel transmission method, which is applied to a base station. As shown in FIG. 7, the method includes:

S710: After sending the downlink control information DCI to the terminal, detect the physical uplink control channel PUCCH information of the terminal on the target transmission time slot indicated by the DCI;

S720: If no PUCCH information is detected on the target transmission time slot, detect the PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot.

In the uplink control channel transmission method described in the embodiment of the present disclosure, when the terminal determines that the PUCCH transmission resources indicated by the DCI of at least two base stations conflict, it will give priority to the PUCCH transmission of the first base station with the highest priority, and the priority is lower. The second base station in, adopts a method of delaying PUCCH transmission to avoid conflicting transmission resources. Therefore, for a base station with a lower priority, if no PUCCH information is detected on the target transmission time slot indicated by the DCI, the PUCCH sent by the terminal to the base station can be detected on the preset transmission time slot after the target transmission time slot. information.

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

Wherein, in step S720, detecting the PUCCH information of the terminal in the preset transmission time slot after the target transmission time slot includes:

At least two time slot intervals for HARQ ACK feedback;

In the first embodiment, the high-layer signaling configuration parameters include at least two time slot intervals for HARQ ACK feedback. According to the at least two time slot intervals in the high-level signaling configuration parameters, it can be determined to be used for PUCCH transmission by the second base station. The preset transmission time slot.

Optionally, the high-layer signaling configuration parameter may be the ACK configuration range parameter dl-DataToUL-ACK configured by the high-layer signaling for the terminal. Specifically, the dl-DataToUL-ACK parameter can include 8 optional time slot intervals (k1, k2,..., k8), where DCI can indicate one of the 8 optional time slot intervals, using Transmission on PUCCH.

Based on the above-mentioned PUCCH transmission method used by the terminal, if the base station does not detect the terminal’s PUCCH in the feedback slot (target transmission slot) indicated by the DCI, it will try in the order of the remaining slot intervals defined in the dl-DataToUL-ACK parameter Receive again until the PUCCH is successfully received, or the PUCCH is received in the subsequent preset transmission time slot but the delayed HARQ-ACK codebook is not decoded, or the user's PUCCH is not detected in all optional intervals.

Referring to Figure 3, for example, according to the DCI 1 and DCI 2 sent by TRP1 and TRP2 respectively, when the n+k=4th time slot is the transmission time slot for the PUCCH transmission of TRP1 and TRP2, when the transmission resources conflict, The terminal preferentially transmits PUCCH#1 of TRP1 in the n+k=4th time slot, and selects {4,9,14,19...} in the dl-DataToUL-ACK parameter to arrange the eight time slot intervals in the time slot interval k= When the transmission time slot (preset transmission time slot) corresponding to each time slot interval after 4 is used for PUCCH#2 transmission, for TRP2, it is necessary to perform PUCCH of the terminal in the n+k=4th time slot. Detection, when PUCCH is not detected, the eight time slot intervals are arranged in each time slot interval after the time slot interval k=4 according to {4,9,14,19...} in the dl-DataToUL-ACK parameter, Determine the corresponding preset transmission time slot, and perform PUCCH detection.

Based on the aforementioned PUCCH transmission method used by the terminal, if the base station does not detect the terminal’s PUCCH in the feedback slot (target transmission slot) indicated by the DCI, the number of time slots for delayed transmission defined by PUCCH-Config (first interval value) k0) Try to receive again on the corresponding time slot until the reception succeeds, or the PUCCH is received in the subsequent time slot but the HARQ-ACK codebook for delayed transmission is not solved, or the maximum number of transmissions m is reached.

Referring to Figure 4, for example, when according to the DCI 1 and DCI 2 sent by TRP1 and TRP2, the n+k1th time slot is the transmission time slot for PUCCH transmission of TRP1 and TRP2, so the transmission resources conflict, The terminal chooses to transmit PUCCH#1 first in the n+k1th time slot, and attempts to transmit PUCCH#2 in the uplink time slots of every 5 transmission time slots after the n+k1th time slot. For TRP2 When the PUCCH of the terminal is not detected in the n+k1th time slot, after the n+k1th time slot, it will try to receive the PUCCH again in the uplink time slot every 5 time slots after the n+k1th time slot. Or the PUCCH is received in the subsequent time slot but the delayed HARQ-ACK codebook is not decoded, or the reception stops after 5 receptions.

Based on the above-mentioned PUCCH transmission method adopted by the terminal, if the base station does not detect the user’s PUCCH in the feedback slot (target transmission slot) indicated by the DCI, the number of time slots for delayed transmission defined by PUCCH-Config (the second interval value) K0) Try to receive again on the corresponding time slot until it is successfully received, or the PUCCH is received in the subsequent time slot but the delayed HARQ-ACK codebook is not decoded, or the maximum delayed transmission interval K is reached.

For example, referring to Figure 5, according to the DCI 1 and DCI 2 sent by TRP1 and TRP2, the n+k1th time slot is the transmission time slot for PUCCH transmission of TRP1 and TRP2. When the transmission resources conflict, the terminal selects First transmit PUCCH#1 in the n+k1th time slot, and try to transmit PUCCH#2 in the uplink time slots every 5 transmission time slots after the n+k1th time slot, until the transmission is successful or the maximum delay is reached When the transmission interval is 15 time slots, TRP2 does not detect the PUCCH of the terminal in the n+k1 time slot, and then tries again on the uplink time slot every 5 time slots after the n+k1 time slot Receiving stops until it is successfully received, or the PUCCH is received in a subsequent time slot but the HARQ-ACK codebook for delayed transmission is not solved, or the maximum delayed transmission interval is 15 time slots.

In the fourth embodiment, the terminal determines by itself that the PUCCH of the base station with low priority is transmitted in the uplink time slot closest to the target transmission time slot without conflict. The base station can try to receive the PUCCH of the terminal in all uplink time slots until it succeeds. It is received or until the PUCCH is received in the subsequent time slot but the delayed HARQ-ACK codebook is not decoded, or the predefined maximum number of transmissions or the maximum delayed transmission interval is reached.

In the uplink control channel transmission method according to the embodiment of the present disclosure, in step S720, detecting the PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot includes:

In the method described in the embodiment of the present disclosure, the terminal adds the codebook sent due to avoidance delay to the end of the codebook that should be normally sent in the preset transmission time slot. If the base station does not detect the PUCCH of the terminal in the feedback time slot indicated by the DCI, it is assumed that the user has made a delay avoidance transmission. According to one of the above-mentioned agreed methods with the terminal, when the next terminal may send the PUCCH preset transmission Check on the gap.

Specifically, when the base station performs detection on the preset transmission time slot, it tries the detection of the above two codebook lengths, namely:

The first codebook length detection is to detect the length of the HARQ-ACK codebook of the PDSCH that should be fed back in the preset transmission time slot;

The second codebook length detection is to detect the HARQ-ACK codebook of the PDSCH that should be fed back in the preset transmission time slot plus the HARQ-ACK codebook length that should be received but not received in the previous time slot.

Wherein, if the base station detects the first codebook length, it is determined that the preset time slot can be used for normal data transmission, which can be used as a transmission time slot to avoid delay in sending the codebook. Based on this, the data with the first codebook length detected is the The HARQ-ACK codebook of the PDSCH that should be fed back in the preset transmission time slot, if the codebook that should be sent in the previous uplink time slot is not detected, it is considered that the PUCCH that should be received is not detected in the previous uplink time slot (target transmission time slot) Due to poor channel conditions and missed detection, instead of the failure of the terminal to give way, the base station will no longer try to receive in other time slots, but will adjust the user to retransmit;

If the base station detects the second codebook length, it is considered that the terminal has a PUCCH resource conflict in the previous uplink time slot (target transmission time slot), so the HARQ-ACK information that should be fed back is added to the end of this feedback codebook.

Taking the implementation shown in FIG. 6 as an example, the base station does not detect the PUCCH carrying the HARQ-ACK of PDSCH1#1 in time slot 4, and then tries to receive it in time slot 9 according to the avoidance rule. If the length of the codebook received in time slot 9 is 2 bits, the base station considers that the first bit is the HARQ-ACK codebook of PDSCH 2#1, and the second bit is the HARQ-ACK codebook of PDSCH 1#1 ；

If the terminal successfully feeds back the PUCCH carrying the HARQ-ACK of PDSCH1#1 in time slot 4, but the base station fails to detect it, the base station will try to detect it again in time slot 9. But the base station detects only 1 bit of information in time slot 9, the base station considers this bit to be the HARQ-ACK codebook of PDSCH 2#1, and the PUCCH in time slot 4 is sent on time but missed. In this case, the user is scheduled Retransmission.

The use of the uplink control channel transmission method provided in the embodiments of the present disclosure can solve the multipoint transmission technology in the related technology, when two or more base stations respectively use DCI to indicate the time domain resources of the PUCCH for the user to overlap, The user cannot transmit two PUCCHs on the same time domain resource.

One of the embodiments of the present disclosure further provides a terminal, as shown in FIG. 8, including a processor 810 and a transceiver 820, wherein:

The transceiver 820 is configured to, when performing hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations If there is a conflict, the PUCCH transmission of the first base station is performed through the target transmission time slot indicated by the DCI of the first base station;

The processor 810 is configured to determine a preset transmission time slot for PUCCH transmission of the second base station after the target transmission time slot; and

Wherein, the first base station and the second base station are respectively one of the at least two base stations, and the first base station has the highest priority among the at least two base stations.

Optionally, in the terminal, the processor 810 determining a preset transmission time slot for PUCCH transmission of the second base station after the target transmission time slot includes:

Wherein, the processor 810 performs PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot, including:

Optionally, in the terminal, the high-layer signaling configuration parameter includes at least one of the following information:

At least two time slot intervals for HARQ ACK feedback;

Optionally, in the terminal, when the high-level signaling configuration parameter includes at least two of the time slot intervals, the determined preset transmission time slot is: the target transmission time slot is increased by at least two respectively. A time slot determined by each time slot interval arranged after the target time slot interval among the time slot intervals; wherein, the target time slot interval is a time slot interval corresponding to the target transmission time slot.

Optionally, in the terminal, when the high-level signaling configuration parameters include the first interval value and the maximum number of transmissions, the determined preset transmission time slot is:

Optionally, in the terminal, when the high-level signaling configuration parameters include the second interval value and the maximum delay transmission interval, the determined preset transmission time slot is:

Optionally, in the terminal, the processor 810 is further configured to:

Optionally, in the terminal, the processor 810 performs PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot, including:

Optionally, in the terminal, the processor 810 is further configured to:

One of the embodiments of the present disclosure further provides a base station, as shown in FIG. 9, including a processor 910, where the processor 910 is configured to:

Optionally, in the base station, the processor 910 is further configured to:

Optionally, in the base station, the pre-configured high-layer signaling configuration parameters include at least one of the following information:

Optionally, in the base station, when the processor 910 determines the preset transmission time slot according to at least two time slot intervals in the pre-configured high-level signaling configuration parameters, the determined preset transmission The time slot is:

Optionally, in the base station, when the processor 910 determines the preset transmission time slot according to the first interval value and the maximum number of transmissions in the pre-configured high-layer signaling configuration parameters, The determined preset transmission time slot is:

Optionally, in the base station, the processor 910 determines the preset transmission time slot time according to the second interval value and the maximum delay transmission interval in the pre-configured high-layer signaling configuration parameters , The determined preset transmission time slot is:

Optionally, the base station, wherein the processor 910 detects the PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot, including:

One of the embodiments of the present disclosure also provides an uplink control channel transmission device, which is applied to a terminal. As shown in FIG. 10, the device includes:

The first transmission module 1001 is used to perform hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations If there is a conflict, the PUCCH transmission of the first base station is performed through the target transmission time slot indicated by the DCI of the first base station;

The processing module 1002 is configured to determine a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot;

The second transmission module 1003 is configured to perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot;

Optionally, in the uplink control channel transmission device, the processing module 1002 determines the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot, including:

Wherein, the second transmission module 1003 performs PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot, including:

Optionally, in the uplink control channel transmission device, the high-layer signaling configuration parameter includes at least one of the following information:

At least two time slot intervals for HARQ ACK feedback;

Optionally, in the uplink control channel transmission device, when the high-level signaling configuration parameter includes at least two of the time slot intervals, the determined preset transmission time slot is: when the target transmits The slots are respectively increased by at least two time slots determined by each time slot interval arranged after the target time slot interval in the time slot interval; wherein, the target time slot interval is the time corresponding to the target transmission time slot Gap interval.

Optionally, in the uplink control channel transmission device, when the high-level signaling configuration parameters include the first interval value and the maximum number of transmissions, the determined preset transmission time slot is:

Optionally, in the uplink control channel transmission device, when the high-level signaling configuration parameters include the second interval value and the maximum delay transmission interval, the determined preset transmission time slot is:

Optionally, in the uplink control channel transmission device, the processing module 1002 is further configured to:

Optionally, in the transmission device of the uplink control channel, the second transmission module 1003 performs PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot, include:

Optionally, in the uplink control channel transmission device, the first transmission module 1001 is further configured to:

One of the embodiments of the present disclosure also provides an uplink control channel transmission device, which is applied to a base station. As shown in FIG. 11, the device includes:

The first detection module 1101 is configured to detect the physical uplink control channel PUCCH information of the terminal on the target transmission time slot indicated by the DCI after sending the downlink control information DCI to the terminal;

The second detection module 1102 is configured to detect PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot if no PUCCH information is detected on the target transmission time slot.

Optionally, in the transmission device of the uplink control channel, the first detection module 1101 is further configured to:

Wherein, the second detection module 1102 detects the PUCCH information of the terminal in the preset transmission time slot after the target transmission time slot, including:

Optionally, in the uplink control channel transmission device, the second detection module 1102 is further configured to:

Optionally, in the uplink control channel transmission device, the pre-configured high-layer signaling configuration parameters include at least one of the following information:

Optionally, in the transmission device of the uplink control channel, the second detection module 1102 determines the preset transmission time slot time according to at least two time slot intervals in the pre-configured high-level signaling configuration parameters , The determined preset transmission time slot is:

Optionally, in the transmission device of the uplink control channel, the second detection module 1102 determines the first interval value and the maximum number of transmissions in the pre-configured high-layer signaling configuration parameters When the transmission time slot is preset, the determined preset transmission time slot is:

Optionally, in the transmission device of the uplink control channel, the second detection module 1102 determines the transmission interval according to the second interval value and the maximum delay transmission interval in the pre-configured high-layer signaling configuration parameters. When the preset transmission time slot is described, the determined preset transmission time slot is:

Optionally, in the transmission device of the uplink control channel, the second detection module 1102 detects the PUCCH information of the terminal at a preset transmission time slot after the target transmission time slot, including:

Another aspect of the embodiments of the present disclosure also provides a terminal, as shown in FIG. 12, including: a processor 1201; and a memory 1203 connected to the processor 1201 through a bus interface 1202, and the memory 1203 is used for storing For the programs and data used by the processor 1201 when performing operations, the processor 1201 calls and executes the programs and data stored in the memory 1203.

Wherein, the transceiver 1204 is connected to the bus interface 1202, and is used to receive and send data under the control of the processor 1201. Specifically, the processor 1201 is used to read a program in the memory 1203 and execute the following process:

Perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot;

Optionally, in the terminal, the processor 1201 determining the preset transmission time slot for PUCCH transmission of the second base station after the target transmission time slot includes:

Wherein, the processor 1201 performs PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot, including:

Optionally, in the terminal, the processor 1201 determining the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot includes:

At least two time slot intervals for HARQ ACK feedback;

Optionally, in the terminal, the processor 1201 is further configured to:

Optionally, in the terminal, the processor 1201 performs PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot, including:

Optionally, in the terminal, the processor 1201 is further configured to:

It should be noted that in FIG. 12, the bus architecture may include any number of interconnected buses and bridges, and specifically one or more processors represented by the processor 1201 and various circuits of the memory represented by the memory 1203 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein. The bus interface provides the interface. The transceiver 1204 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium. For different terminals, the user interface 1205 may also be an interface capable of connecting externally and internally with required equipment. The connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc. The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 can store data used by the processor 1201 when performing operations.

Another aspect of the embodiments of the present disclosure also provides a base station, as shown in FIG. 13, comprising: a processor 1301; and a memory 1303 connected to the processor 1301 through a bus interface 1302, and the memory 1303 is used for storing For the programs and data used by the processor 1301 when performing operations, the processor 1301 calls and executes the programs and data stored in the memory 1303.

Wherein, the transceiver 1304 is connected to the bus interface 1302, and is used to receive and send data under the control of the processor 1301. Specifically, the processor 1301 is used to read a program in the memory 1303 and execute the following process:

Optionally, in the base station, the processor 1301 is further configured to:

Wherein, the processor 1301 detects the PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot, including:

Optionally, in the base station, the processor 1301 is further configured to:

Optionally, in the base station, when the processor 1301 determines the preset transmission time slot according to at least two time slot intervals in the pre-configured high-layer signaling configuration parameters, the determined preset transmission time slot is Suppose the transmission time slot is:

Optionally, the base station, wherein the processor 1301 determines the preset transmission time slot according to the first interval value and the maximum number of transmissions in the pre-configured high-layer signaling configuration parameters When, the determined preset transmission time slot is:

Optionally, in the base station, wherein the processor 1301 determines the preset transmission time according to the second interval value and the maximum delay transmission interval in the pre-configured high-layer signaling configuration parameters During the time slot, the determined preset transmission time slot is:

Optionally, the base station, wherein the processor 1301 detects the PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot, including:

Wherein, in FIG. 13, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1301 and various circuits of the memory represented by the memory 1303 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein. The bus interface provides the interface. The transceiver 1304 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium. The processor 1301 is responsible for managing the bus architecture and general processing, and the memory 1303 can store data used by the processor 1301 when performing operations.

Those skilled in the art can understand that all or part of the steps in the foregoing embodiments can be implemented by hardware, or by a program instructing related hardware, and the program includes instructions for executing part or all of the steps of the foregoing method; and The program can be stored in a readable storage medium, and the storage medium can be any form of storage medium.

In addition, specific embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, where the program is executed by a processor to implement the uplink control channel transmission method described in any of the above step.

In the several embodiments provided in this application, it should be understood that the disclosed method and device may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

In addition, the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be separately physically included, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above-mentioned integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The above-mentioned software function unit is stored in a storage medium, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute part of the steps of the transceiver method described in each embodiment of the present disclosure. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

It should be noted that it should be understood that the division of the various modules of the above device is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware. For example, the determining module may be a separately established processing element, or it may be integrated in a chip of the above-mentioned device for implementation. In addition, it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element Call and execute the functions of the above-identified module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or implemented independently. The processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

For example, each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more application specific integrated circuits (ASIC), or one or Multiple microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc. For another example, when one of the above modules is implemented in the form of processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The terms "first" and "second" in the specification and claims of this application are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein, for example, are implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment. In addition, the use of "and/or" in the description and claims means at least one of the connected objects, such as A and/or B and/or C, which means that it includes A alone, B alone, C alone, and both A and B. Exist, B and C exist, A and C exist, and A, B, and C all exist in 7 situations. Similarly, the use of "at least one of A and B" in this specification and claims should be understood as "A alone, B alone, or both A and B exist".

The above are optional implementations of the present disclosure. It should be pointed out that for those of ordinary skill in the art, without departing from the principles described in the present disclosure, several improvements and modifications can be made, and these improvements and modifications should also be made. It is regarded as the protection scope of this disclosure.

Claims

An uplink control channel transmission method, applied to a terminal, includes:

When performing hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations conflict, pass the first base station PUCCH transmission of the first base station in the target transmission time slot indicated by the DCI;

Determining a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot;

According to the determined preset transmission time slot, perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted.
The uplink control channel transmission method according to claim 1, wherein the first base station and the second base station are respectively one of the at least two base stations, and the first base station is in the At least two base stations have the highest priority.
The uplink control channel transmission method according to claim 1 or 2, wherein determining the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot comprises:

Determining multiple preset transmission time slots after the target transmission time slot;

Wherein, the performing PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot includes:

Perform the PUCCH transmission of the second base station in each of the preset transmission time slots in sequence, until the second base station carries the PUCCH transmission of the HARQ ACK currently to be transmitted successfully, or multiple preset transmission time slots are transmitted complete.
The uplink control channel transmission method according to any one of claims 1-3, wherein the determining the preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot comprises :

Determine the preset transmission time slot according to high-layer signaling configuration parameters; or

After determining the target transmission time slot, a time slot in which there is no transmission conflict is the preset transmission time slot.
The uplink control channel transmission method according to claim 4, wherein the high-level signaling configuration parameter includes at least one of the following information:

At least two time slot intervals for HARQ ACK feedback;

The second base station delays the first interval value for PUCCH transmission and the maximum number of transmissions for repeated PUCCH transmission compared to the first base station;

Compared with the first base station, the second base station delays a second interval value for PUCCH transmission and a maximum delayed transmission interval for PUCCH repeated transmission.
The uplink control channel transmission method according to claim 5, wherein when the high-level signaling configuration parameter includes at least two of the time slot intervals, the determined preset transmission time slot is: when the target transmits The slots are respectively increased by at least two time slots determined by each time slot interval arranged after the target time slot interval in the time slot interval; wherein, the target time slot interval is the time corresponding to the target transmission time slot Gap interval.
The uplink control channel transmission method according to claim 5, wherein when the high-level signaling configuration parameters include the first interval value and the maximum number of transmissions, the determined preset transmission time slot is:

The target transmission time slot is sequentially increased by a time slot determined when the first interval value is added, and the determined number of the preset transmission time slot is less than or equal to the maximum number of transmissions.
The uplink control channel transmission method according to claim 5, wherein when the high-level signaling configuration parameters include the second interval value and the maximum delay transmission interval, the determined preset transmission time slot is:

The time slot determined when the target transmission time slot is sequentially increased by the second interval value, and the time slot interval between the last predetermined transmission time slot and the target transmission time slot is determined It is less than or equal to the maximum delay transmission interval.
The uplink control channel transmission method according to claim 1 or 2, wherein the method further comprises:

If it is determined that the preset transmission time slot does not exist after the target transmission time slot, the PUCCH transmission used to carry the HARQ ACK currently to be transmitted is abandoned.
The uplink control channel transmission method according to claim 1 or 2, wherein the transmission of the PUCCH carrying the HARQ ACK currently to be transmitted by the second base station according to the determined preset transmission time slot comprises:

Adding the HARQ ACK currently to be transmitted after the set to-be-transmitted codebook of the preset transmission time slot to obtain a total codebook;

In the preset transmission time slot, perform PUCCH transmission of the second base station carrying the total codebook.
The uplink control channel transmission method according to claim 1 or 2, further comprising:

The first base station is determined according to at least one arrangement rule of channel condition priority, base station service type priority, and base station type priority.
An uplink control channel transmission method, applied to a base station, includes:

After sending the downlink control information DCI to the terminal, detecting the physical uplink control channel PUCCH information of the terminal on the target transmission time slot indicated by the DCI;

If no PUCCH information is detected on the target transmission time slot, the PUCCH information of the terminal is detected in a preset transmission time slot after the target transmission time slot.
The uplink control channel transmission method according to claim 12, further comprising:

If PUCCH information is not detected on the target transmission time slot, determine multiple preset transmission time slots after the target transmission time slot;

Wherein, detecting the PUCCH information of the terminal in the preset transmission time slot after the target transmission time slot includes:

The PUCCH information of the terminal is detected sequentially on each of the preset transmission time slots, until the PUCCH information of the terminal is successfully received, or the detection of multiple preset transmission time slots is completed.
The uplink control channel transmission method according to claim 12 or 13, further comprising:

Determine the preset transmission time slot according to the high-level signaling configuration parameters sent to the terminal in advance; or

Each time slot after the target transmission time slot is determined to be the preset transmission time slot.
The uplink control channel transmission method according to claim 14, wherein the pre-configured high-level signaling configuration parameters include at least one of the following information:

The terminal performs a hybrid automatic repeat request to confirm at least two time slot intervals for HARQ ACK feedback;

Delaying the first interval value for PUCCH transmission and the maximum number of transmissions for repeated PUCCH transmission;

Delay the second interval value for PUCCH transmission and the maximum delayed transmission interval for repeated PUCCH transmission.
The uplink control channel transmission method according to claim 15, wherein the predetermined transmission time slot is determined according to at least two time slot intervals in the pre-configured high-level signaling configuration parameters. Suppose the transmission time slot is:

The target transmission time slot is increased by at least two time slots determined by each time slot interval arranged after the target time slot interval in the time slot interval respectively; wherein, the target time slot interval is the same as the target transmission time slot interval. The time slot interval corresponding to the time slot.
The uplink control channel transmission method according to claim 15, wherein the preset transmission time slot is determined according to the first interval value and the maximum number of transmissions in the pre-configured high-level signaling configuration parameters When, the determined preset transmission time slot is:

The time slots of the first interval value are sequentially increased by the target transmission time slots, and the determined number of the preset transmission time slots is less than or equal to the maximum number of transmissions.
The uplink control channel transmission method according to claim 15, wherein the preset transmission time is determined according to the second interval value and the maximum delay transmission interval in the pre-configured high-layer signaling configuration parameters During the time slot, the determined preset transmission time slot is:

The time slots determined when the target transmission time slot is sequentially increased by the second interval value, and the time slot interval between the last determined preset transmission time slot and the target transmission time slot is less than Or equal to the maximum delay transmission interval.
The uplink control channel transmission method according to claim 12, wherein the detection of the PUCCH information of the terminal in the preset transmission time slot after the target transmission time slot comprises:

Performing first codebook length detection, where the first codebook length is equal to the length of the HARQ ACK codebook that should be received in the setting of the preset transmission time slot;

Perform a second codebook length detection. The second codebook length is equal to the length of the HARQ ACK codebook that should be received in the setting of the preset transmission time slot and the length of the HARQ ACK codebook that should be received in the target transmission time slot. The sum of the lengths.
A terminal including a processor and a transceiver, wherein:

The transceiver is used to, when performing hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations exist If there is a conflict, the PUCCH transmission of the first base station is performed through the target transmission time slot indicated by the DCI of the first base station;

The processor is configured to determine a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot; and

According to the determined preset transmission time slot, perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted.
The terminal according to claim 20, wherein the first base station and the second base station are respectively one of the at least two base stations, and the first base station is in the at least two base stations Has the highest priority.
A base station includes a processor, wherein the processor is used for:

After sending the downlink control information DCI to the terminal, detecting the physical uplink control channel PUCCH information of the terminal on the target transmission time slot indicated by the DCI;

If no PUCCH information is detected on the target transmission time slot, the PUCCH information of the terminal is detected in a preset transmission time slot after the target transmission time slot.
An uplink control channel transmission device, applied to a terminal, and the device includes:

The first transmission module is used to perform hybrid automatic repeat request confirmation HARQ ACK feedback to at least two base stations, if the transmission resources of the physical uplink control channel PUCCH indicated in the downlink control information DCI sent by the at least two base stations exist If there is a conflict, the PUCCH transmission of the first base station is performed through the target transmission time slot indicated by the DCI of the first base station;

A processing module, configured to determine a preset transmission time slot used for PUCCH transmission of the second base station after the target transmission time slot;

The second transmission module is configured to perform PUCCH transmission of the second base station carrying the HARQ ACK currently to be transmitted according to the determined preset transmission time slot.
The uplink control channel transmission device according to claim 23, wherein the first base station and the second base station are respectively one of the at least two base stations, and the first base station is in the At least two base stations have the highest priority.
An uplink control channel transmission device applied to a base station, wherein the device includes:

The first detection module is configured to detect the physical uplink control channel PUCCH information of the terminal on the target transmission time slot indicated by the DCI after sending the downlink control information DCI to the terminal;

The second detection module is configured to detect PUCCH information of the terminal in a preset transmission time slot after the target transmission time slot if no PUCCH information is detected on the target transmission time slot.
A terminal comprising: a processor, a memory, and a program stored on the memory and capable of running on the processor, and the program is executed by the processor as described in any one of claims 1 to 11 The above mentioned uplink control channel transmission method.
A base station, comprising: a processor, a memory, and a program stored on the memory and capable of running on the processor, and the program is executed by the processor as described in any one of claims 12 to 19 The above mentioned uplink control channel transmission method.
A computer-readable storage medium with a computer program stored thereon, and when the computer program is executed by a processor, the steps in the uplink control channel transmission method according to any one of claims 1 to 11 are implemented, or The steps in the uplink control channel transmission method according to any one of claims 12 to 19.