WO2022237462A1

WO2022237462A1 - Transmission method for uplink channel and related apparatus

Info

Publication number: WO2022237462A1
Application number: PCT/CN2022/087476
Authority: WO
Inventors: 司倩倩; 高雪娟
Original assignee: 大唐移动通信设备有限公司
Priority date: 2021-05-11
Filing date: 2022-04-18
Publication date: 2022-11-17
Also published as: CN115333697A

Abstract

The present application provides a transmission method for an uplink channel and a related apparatus, which are used to solve the problem in the existing technology of how to combine physical uplink control channel (PUCCH) carrier switching and uplink channel overlapping for processing. In the present application, if PUCCH carrier switching is supported and uplink channel overlapping is present, then PUCCH carrier switching is preferentially performed, and then overlapped uplink channels are processed.

Description

Uplink channel transmission method and related device

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202110509192.9 and the application name "Uplink channel transmission method and related device" submitted to the China Patent Office on May 11, 2021, the entire content of which is incorporated by reference in this application middle.

technical field

The present application relates to the technical field of wireless communication, and in particular to an uplink channel transmission method and a related device.

Background technique

In the fifth-generation new wireless system (5Generation New RAT, 5G NR), there are a large number of ultra-reliable and low-latency communication (Ultra-Reliable and Low Latency Communication, URLLC) services. URLLC services have very low latency requirements, but considering that uplink transmission and downlink transmission on unpaired spectrum share the same spectrum resource, time-division multiplexing (TDM) transmission is required for uplink and downlink. Therefore, in a carrier group, the carrier configured to transmit the Physical Uplink Control Channel (PUCCH) may be limited by the uplink and downlink ratio, and cannot find an available uplink at the time domain position that satisfies the shortest processing time for downlink transmission. Resources (for example, the position that satisfies the processing delay is just the time domain position of the downlink transmission). At this time, if the available uplink resources on the carrier for transmitting the PUCCH are waited for, transmission delay will be caused and URLLC performance will be affected. The current solution in the related art is to perform PUCCH carrier switching, that is, switch the PUCCH from the originally configured carrier to another carrier for transmission, so that there is no need to delay PUCCH transmission when the original carrier has insufficient scheduling resources or resource conflicts. However, when PUCCH carrier switching is supported, it is currently unclear how to combine PUCCH carrier switching and uplink channel overlap.

Contents of the invention

The present application provides an uplink channel transmission method and a related device. It is used to solve the problem of how to combine PUCCH carrier switching and uplink channel overlap.

In a first aspect, the present application provides a method for transmitting an uplink channel, the method comprising:

If the physical uplink control channel PUCCH carrier switching is supported and the uplink channels overlap, the PUCCH carrier switching is performed first, and then the overlapping uplink channels are processed.

In this way, the understanding of the base station and the terminal is consistent, thereby improving the transmission performance of the system.

In some embodiments, the performing PUCCH carrier switching includes:

If carrier switching needs to be performed on the first PUCCH resource of the first carrier, the information to be transmitted corresponding to the first PUCCH resource is switched to the second PUCCH resource of the second carrier for transmission.

In this embodiment of the present application, when there is a need for carrier switching, the first PUCCH resource of the first carrier is switched to the second PUCCH resource of the second carrier for transmission, without waiting for available uplink resources on the carrier for transmitting PUCCH, avoiding The transmission delay is reduced, thereby improving the performance of URLLC.

In some embodiments, the first carrier includes at least one of the following:

Pcell carrier, PUCCH Scell carrier, PScell carrier.

The uplink channel transmission method proposed in this application is applicable to various carriers, so that the technical solution of this application has universal applicability.

In some embodiments, the first PUCCH resource is a resource for carrying at least one of the following information:

HARQ-ACK, CSI, SR.

In the embodiment of the present application, the information resources carried by the first PUCCH resource may be the above-mentioned multiple resources, which greatly increases transmission efficiency.

In some embodiments, if the first PUCCH resource is used to bear the HARQ-ACK, the first PUCCH resource is determined based on RRC configuration and a DCI indication for scheduling PDSCH, or determined based on RRC configuration;

If the first PUCCH resource is used to bear the CSI or the SR, the first PUCCH resource is determined based on RRC configuration.

In the embodiment of the present application, the information resource carried by the first resource is determined based on different indications, which avoids transmission efficiency offset caused by ambiguity between the indication and the information resource carried during resource transmission, thereby improving transmission efficiency.

In some embodiments, if the PUCCH resources of the first carrier are switched to the PUCCH resources of the second carrier, the order of processing the overlapping uplink channels is:

Overlap between PUCCH resources of the second carrier, overlap between PUCCH of the second carrier and PUCCH of the first carrier, PUCCH of the first or second carrier and PUSCH of carriers in the same physical uplink control channel group or cell group Overlap between resources.

In the embodiment of the present application, an overlapping processing sequence is specified, so that both the terminal and the base station perform processing according to this sequence, thereby achieving the purpose of consistent understanding between the terminal and the base station.

In some embodiments, the processing of overlapping uplink channels includes:

The overlapping uplink channels are processed according to a preset multiplexing rule.

In the embodiment of the present application, both the terminal and the base station use the same multiplexing rule to handle overlapping, thereby achieving the purpose of consistent understanding between the terminal and the base station.

In a second aspect, an embodiment of the present application provides a communication device, including: a processor, a memory, and a transceiver;

memory for storing computer programs;

a transceiver, configured to send and receive data under the control of the processor;

a processor for reading the computer program in said memory and performing the following operations:

In some embodiments, the processor is specifically configured to:

In some embodiments, the first carrier includes at least one of the following:

Pcell carrier, PUCCH Scell carrier, PScell carrier.

HARQ-ACK, CSI, SR.

In some embodiments, the overlapping uplink channels are processed, and the processor is specifically configured to:

In a third aspect, the embodiment of the present application also provides an uplink channel transmission device, the device comprising:

The processing module is configured to give priority to performing PUCCH carrier switching if the physical uplink control channel PUCCH carrier switching is supported and there is overlap of uplink channels, and then process the overlapped uplink channels.

In some embodiments, the processing module includes a switching unit;

The switching unit is configured to switch the to-be-transmitted information corresponding to the first PUCCH resource to the second PUCCH resource of the second carrier for transmission if carrier switching is required for the first PUCCH resource of the first carrier.

In some embodiments, the first carrier includes at least one of the following:

Pcell carrier, PUCCH Scell carrier, PScell carrier.

HARQ-ACK, CSI, SR.

In some embodiments, when the switching unit switches the PUCCH resources of the first carrier to the PUCCH resources of the second carrier, the order of processing the overlapping uplink channels is:

In some embodiments, the processing module also includes an overlapping processing unit:

The overlapping processing unit is configured to process the overlapping uplink channels according to a preset multiplexing rule.

In the fourth aspect, the embodiment of the present application further provides a computer storage medium, the computer storage medium stores a computer program, and the computer program is used to make a computer execute the method described in any one of the first aspect.

In the fifth aspect, the embodiment of the present application further provides a computer program product, including program code, when the computer program product is run on the electronic device, the electronic device is made to execute the method described in any one of the first aspect. method.

In addition, for the technical effects brought about by any one of the implementations from the first aspect to the fifth aspect, refer to the technical effects brought about by different implementations in the first aspect, which will not be repeated here.

These or other aspects of the present application will be more concise and understandable in the description of the following embodiments.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1A is an application scenario diagram of an uplink channel transmission method provided by an embodiment of the present application;

FIG. 1B is a flowchart of an uplink channel transmission method provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of PUCCH transmission of an uplink channel transmission method provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of PUCCH transmission of an uplink channel transmission method provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of PUCCH transmission in an uplink channel transmission method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of PUCCH transmission in an uplink channel transmission method provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of an apparatus for an uplink channel transmission method provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a communication device of an uplink channel transmission method provided by an embodiment of the present application.

Detailed ways

In the following, some terms used in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.

(1) In the embodiments of this application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand their meanings.

(2) The term "multiple" in the embodiments of the present application refers to two or more, and other quantifiers are similar.

(3) "And/or", which describes the association relationship of associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists independently. Happening. The character "/" generally indicates that the contextual objects are an "or" relationship.

The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable system can be Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) general packet General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Long Term Evolution Advanced (LTE-A) system, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc. These various systems include terminal equipment and network side equipment. The system may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS), a 5G system (5G System, 5GS), and the like.

The communication device involved in this embodiment of the present application may refer to a terminal device, or may be a network side device.

The terminal device involved in this embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal equipment may be different. For example, in a 5G system, the terminal equipment may be called User Equipment (User Equipment, UE). The wireless terminal device can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phone, cordless phone, Session Initiated Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant, PDA) and other devices. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in this embodiment of the application.

The network-side device involved in the embodiment of the present application may be a core network and/or a base station, and the base station may include multiple cells that provide services for terminals. Depending on the specific application, the base station can also be called an access point, or it can be a device that communicates with wireless terminal equipment through one or more sectors on the air interface in the access network, or other names. The network-side device can be used to exchange received air frames and Internet Protocol (Internet Protocol, IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include IP communication network. The network side device can also coordinate attribute management of the air interface. For example, the network-side device involved in the embodiment of the present application may be a network-side device (Base Transceiver Station, Base Transceiver Station) in Global System for Mobile Communications (GSM or Code Division Multiple Access, CDMA). BTS), it can also be the network side equipment (NodeB) in Wide-band Code Division Multiple Access (WCDMA), and it can also be the evolution type in the long-term evolution (Long Term Evolution, LTE) system The network side equipment (evolutional Node B, eNB or e-NodeB), the 5G base station (generation Node B, gNB) in the 5G network architecture (next generation system), or the home evolution base station (Home evolved Node B, HeNB), Relay node (relay node), home base station (femto), pico base station (pico), etc. are not limited in the embodiments of the present application. In some network structures, the network side equipment may include a centralized unit (Centralized Unit, CU) node And distribution unit (Distributed Unit, DU) nodes, centralized unit and distribution unit can also be arranged geographically separately.

The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the application, not all of them. . Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The inventors found that in a wireless system (New RAT, NR) communication system, considering the limited uplink time domain resources in a time domain (slot), there may be multiple uplink control information (Uplink Control Information, UCI) PUCCH resources overlap in the time domain. When PUCCH transmission resources of different types of UCIs overlap, UCI combined transmission is required to avoid multiple PUCCHs being transmitted in parallel on the same carrier. Currently, only UCIs with the same physical layer priority are supported for multiplexing transmission. When the PUCCH resources of UCIs with different physical layer priorities overlap in the time domain, only UCI with high priority is transmitted and UCI with low priority is discarded.

For the same terminal, in order to avoid excessive Peak to Average Power Ratio (PAPR), simultaneous transmission of PUCCH and Physical Uplink Shared Channel (PUSCH) is not supported, so the PUCCH and PUSCH When the time-domain resources between the terminals overlap, the terminal can multiplex the UCI for transmission on the PUSCH, so that there is no need to transmit the PUCCH, or select a higher-priority channel for transmission based on the physical layer priority, and not transmit a low-priority channel.

For the carrier aggregation (Carrier Aggregation, CA) scenario, the PUCCH is transmitted on the primary carrier (Primary Component Carrier, PCC) or primary cell (Primary Cell, PCell). When PUCCH is configured to be transmitted on the secondary carrier (Secondary Cell, SCC) or secondary cell (Secondary Cell, SCell) in the CA scenario, the aggregated carriers can be divided into two PUCCH carrier groups, and each PUCCH carrier group has a specified The PUCCH is transmitted on the carrier, the carrier group including the PCC is the main PUCCH carrier group, and the PUCCH is transmitted on the PCC. The secondary PUCCH carrier group is all SCCs, and high-level signaling configures one of the SCCs to transmit the PUCCH, which is called a physical uplink control channel secondary cell (PUCCH SCell). Hybrid Automatic Repeat request-ACKnowledgment (HARQ-ACK) of downlink transmission on all carriers in each carrier group is transmitted in the PUCCH on a designated carrier. For the Dual Connectivity (DC) scenario, there are two carrier groups, the Master Carrier Group (MCG) and the Secondary Carrier Group (SCG), and transmission is performed on a designated carrier in each carrier group. The PUCCH, wherein the MCG includes the PCC, the PUCCH is transmitted on the PCC, the MCG is all SCCs, and the PUCCH is transmitted on one of the pre-configured SCCs (or called primary secondary cells (PSCell)).

UCI includes HARQ-ACK, Channel State Information (CSI), Scheduling Request (Scheduling Request, SR) and other information. Among them, HARQ-ACK is a general term for positive feedback (Acknowledgment, ACK) and negative feedback (Negative Acknowledgment, NACK), which is used for the physical downlink control channel (Physical Downlink Shared Channel, PDSCH) or the PDCCH (also known as PDCCH) indicating the release of SPS resources. Called SPS PDSCH release) for feedback to inform the base station of PDSCH or indicate whether the PDCCH released by SPS PDSCH is received correctly; CSI is used to feed back the quality of the downlink channel, thereby helping the base station to perform better downlink scheduling, such as modulation and coding strategies based on CSI (Modulation and Coding Scheme, MCS) to select and configure appropriate resource block (RB) resources, etc.; SR is used to request the transmission resources of the PUSCH carrying uplink services from the base station when the terminal has uplink services to be transmitted. UCI is transmitted on PUCCH. PUCCH is always transmitted on a fixed carrier.

The inventors have found through research that, in the related art, for the overlap between uplink channels, it is stipulated that: for the overlap between uplink channels with the same priority, the overlap between PUCCHs should be processed first, and then the overlap between PUCCH and PUSCH should be processed. When there is an overlap of uplink channels with different priorities, the overlap between low priority channels is firstly processed, then the low priority channels in the uplink channels before carrier switching can be canceled, and finally the high priority uplink channels are processed After overlapping, the high-priority channel cancels the low-priority channel again after the overlap processing.

In the new radio system version 17 (NR Rel-17) stage, PUCCH carrier switching may be supported. The carrier switching scheme includes: 1) Downlink Control Information (DCI) dynamically indicates carrier switching, that is, through the indication field in DCI to display 2) Perform PUCCH carrier switching based on predefined rules, for example, when PCell’s PUCCH resources collide with semi-static downlink symbols, switch PCell’s PUCCH resources to other carriers for transmission; 3) Based on radio resources Control (Radio Resource Control, RRC) configuration mode (pattern) to switch PUCCH carriers, for example, periodically configure based on time-domain subframes, and switch all PUCCH resources of PCell to other carriers in subframes configured with switching to transfer.

The inventor found that in the related art, in order to reduce the PUCCH transmission delay, the PUCCH can switch the carrier transmission mode, but the problem with this method is that there are no clear rules for the resolution of the uplink channel overlap and the process of PUCCH carrier switching, which leads to The base station and the terminal cannot have a consistent understanding of the transmission result of the uplink channel, which will affect the transmission performance of the system.

In view of this, the embodiment of the present application proposes an uplink channel transmission method to solve the above problems. The inventive idea of the embodiment of the present application is: if the PUCCH carrier switching is supported and there is an uplink channel overlap, the PUCCH carrier switching is prioritized. , and then process the overlapping uplink channels. Thus, the processing sequence of combining PUCCH carrier switching and uplink channel overlap is clarified, so that the terminal and the base station have the same understanding, and the transmission performance of the system is improved; and in the embodiment of the present application, the carrier switching is performed first and then the uplink channel overlap is processed. The problem of overlapping uplink channels after carrier switching caused by first processing uplink channel overlap and then processing carrier switching is avoided, thereby reducing waste of resources.

It should be noted that the uplink channel transmission method provided by the embodiment of the present application is applicable to the network side equipment and also applicable to the terminal equipment, and the following uses the terminal equipment as an example for description.

As shown in Figure 1A, it is an application scenario diagram of the embodiment of the present application, which includes: a base station 10 and a terminal device 20; when the terminal device 20 communicates with the base station 10 through the PUCCH, if it supports PUCCH carrier switching and there is an uplink channel overlap , the PUCCH carrier switching is processed first, and then the overlapping uplink channel is processed.

In the uplink channel transmission method proposed in the embodiment of the present application, if PUCCH carrier switching is supported and uplink channel overlap exists, PUCCH carrier switching is performed preferentially, and then the overlapping uplink channel is processed. In this way, the understanding of the base station and the terminal is consistent, thereby improving the transmission performance of the system.

In one embodiment, when performing PUCCH carrier switching, if it is necessary to perform carrier switching on the first PUCCH resource of the first carrier, the information to be transmitted corresponding to the first PUCCH resource is switched to the second PUCCH resource of the second carrier to transfer.

In the embodiment of the present application, the uplink channel transmission method proposed in the present application is applicable to various carriers, so that the technical solution of the present application has universal applicability. Therefore, the first carrier may include at least one of the following: Pcell carrier, PUCCH Scell carrier, and PScell carrier.

In this embodiment of the present application, the first PUCCH resource is a resource for carrying at least one of the following information: HARQ-ACK, CSI, and SR. In the embodiment of the present application, the information resource carried by the first PUCCH resource can be the above-mentioned multiple resources, which greatly increases the efficiency of transmission.

In this embodiment of the present application, different resources to be carried are determined according to different indication information, for example: if the first PUCCH resource is used to carry HARQ-ACK, the first PUCCH resource is determined based on the RRC configuration and the DCI indication of the scheduled PDSCH, Or determined based on RRC configuration; if the first PUCCH resource is used to bear CSI or SR, then the first PUCCH resource is determined based on RRC configuration. In the embodiment of the present application, the information resource carried by the first resource is determined based on different indications, which avoids transmission efficiency offset caused by ambiguity between the indication and the information resource carried during resource transmission, thereby improving transmission efficiency.

In the embodiment of the present application, if the PUCCH resources of the first carrier are switched to the PUCCH resources of the second carrier, the order of processing the overlapping uplink channels is: the overlap between the PUCCH resources of the second carrier, the overlapping of the PUCCH resources of the second carrier The overlap between the PUCCH of the first carrier and the PUCCH of the first carrier, the overlap between the PUCCH of the first carrier or the second carrier and the PUSCH resource of the same physical uplink channel group or cell group carrier. When processing the overlapping uplink channels, the overlapping uplink channels are processed according to a preset multiplexing rule. In the embodiment of the present application, an overlapping processing order is specified, so that both the terminal and the base station perform processing in accordance with this order, thereby achieving the purpose of consistent understanding between the terminal and the base station.

In the embodiment of the present application, the above-mentioned carrier switching is a carrier switching performed in the same physical uplink control channel group (PUCCH group) or cell group (cell group). Carrier switching in the same PUCCH group or cell group avoids the problem that the terminal and the base station cannot understand the same when transmitting in different PUCCH groups or cell groups.

In order to facilitate understanding, the specific process of the embodiment of the present application will be described in detail below, as shown in Figure 1B:

In step 101: determining resources to be transmitted on the first carrier;

In step 102: switching resources to be transmitted on the first carrier to the second carrier for transmission;

In step 103: determine the overlapping situation between PUCCHs in the second carrier, and perform processing;

In step 104: determine the overlapping situation between the PUCCH of the second carrier and the PUCCH of the first carrier, and perform processing;

In step 105: determine the overlap between the PUCCH of the first carrier and the second carrier and the PUSCH resources of carriers in the same PUCCH group or cell group, and perform processing.

In order to facilitate the understanding of the uplink channel transmission method proposed in the embodiment of the present application, the following describes in detail the terminal side in combination with the embodiment:

Example 1:

As shown in FIG. 2 , the terminal aggregates three carriers for uplink transmission, the first carrier is a PCell, and the second carrier is a carrier that can perform PUCCH transmission through PUCCH carrier switching.

Step 1: Carrier switching. Based on the semi-statically configured downlink symbols on the first carrier, it is determined that both PUCCH-1 and PUCCH-2 on the first carrier are invalid resources and need to be switched to the second carrier for transmission. Based on the rules of carrier switching, switch the PUCCH-1 on the first carrier to the second carrier, use the PUCCH-1 on the second carrier for transmission, switch the PUCCH-2 on the first carrier to the second carrier, use The PUCCH-2 on the second carrier is used for transmission.

Step 2: Determine the overlapping situation of the second carrier. On the second carrier, there is no overlap between PUCCH-1 and PUCCH-2.

Step 3: Determine the overlap between the PUCCH of the first carrier and the second carrier and the PUSCH resources of the same PUCCH group or cell group carrier, there is PUSCH transmission on the third carrier, and PUCCH-2 and the third carrier on the second carrier If the PUSCH of the second carrier overlaps, the UCI of the second carrier PUCCH-2 is transferred to the PUSCH of the third carrier for transmission.

To sum up, the PUCCH is not transmitted on the first carrier, only the PUCCH-1 is transmitted on the second carrier, and the PUSCH is transmitted on the third carrier, and the PUSCH also carries the UCI information transmitted by the PUCCH-2 on the first carrier.

Example 2:

As shown in FIG. 3 , three carriers are aggregated on the terminal side for uplink transmission, the first carrier is a PCell, and the second carrier is a carrier for PUCCH transmission through PUCCH carrier switching.

Step 1: Carrier switching. Based on the semi-statically configured downlink symbols on the first carrier, it is determined that both PUCCH-1 and PUCCH-2 on the first carrier are invalid resources and need to be switched to the second carrier for transmission. After the PUCCH-1 on the first carrier is switched to the second carrier, use the PUCCH-1 on the second carrier for transmission, and the PUCCH-2 on the first carrier is switched to the second carrier and use the PUCCH-2 on the second carrier. 2 for transmission.

Step 2: Determine the overlapping situation of the second carrier, overlap between PUCCH-1 and PUCCH-2 on the second carrier, and transfer the UCI carried by PUCCH-2 to PUCCH-1 based on the preset multiplexing rule for multiplexing transmission.

Step 3: Determine the overlap between the PUCCH of the first carrier and the second carrier and the PUSCH resources of the same PUCCH group or cell group carrier, there is PUSCH transmission on the third carrier, PUCCH-1 on the second carrier and PUSCH on the third carrier The PUSCH of the second carrier overlaps, and the UCI of the second carrier PUCCH-1 is transferred to the PUSCH of the third carrier for transmission.

To sum up, the PUCCH is not transmitted on the first carrier and the second carrier, and the PUSCH is transmitted on the third carrier. The PUSCH also carries the UCI information transmitted on the PUCCH-1 and PUCCH-2 of the first carrier.

Example 3:

As shown in FIG. 4 , three carriers are aggregated on the terminal side for uplink transmission, the first carrier is a PCell, and the second carrier is a carrier for PUCCH transmission through PUCCH carrier switching.

Step 1: Carrier switching, based on the downlink symbols configured semi-statically on the first carrier, it is determined that both PUCCH-1 and PUCCH-2 on the first carrier are invalid resources and need to be switched to the second carrier for transmission, and PUCCH-3 is a valid resource . After PUCCH-1 on the first carrier is switched to the second carrier, PUCCH-1 on the second carrier is used for transmission, and PUCCH-2 on the first carrier is switched to the second carrier, and PUCCH-2 on the second carrier is used. 2 for transmission.

Step 2: Determine the overlapping situation of the second carrier, overlap between PUCCH-1 and PUCCH-2 on the second carrier, and transfer the UCI carried by PUCCH-2 to PUCCH-1 based on the preset multiplexing rule for multiplexing Transmission: The PUCCH-1 of the second carrier overlaps with the PUCCH-3 of the first carrier, and one of the PUCCHs is selected based on the PUCCH overlap processing rules between carriers or multiplexed to one PUCCH for transmission. For example, in this embodiment, the PUCCH-3 The UCI is also transferred to the PUCCH-1 on the second carrier for upmultiplex transmission.

Step 3: Determine the overlap between the PUCCH of the first carrier and the second carrier and the PUSCH resources of the same PUCCH group or cell group carrier. There is no PUSCH transmission on the third carrier, so there is no PUCCH-1 and PUCCH on the second carrier. Overlap between PUCCH-2 and PUSCH on the third carrier.

To sum up, the PUCCH is not transmitted on the first carrier, and the PUCCH-1 is transmitted on the second carrier. The PUCCH-1 carries the UCI information transmitted on the PUCCH-1, PUCCH-2 and PUCCH-3 of the first carrier.

Example 4:

As shown in FIG. 5 , three carriers are aggregated on the terminal side for uplink transmission, the first carrier is a PCell, and the second carrier is a carrier for PUCCH transmission through PUCCH carrier switching.

Step 1: Carrier switching, based on the downlink symbols configured semi-statically on the first carrier, it is determined that PUCCH-1 on the first carrier is an invalid resource and needs to be switched to the second carrier for transmission, and PUCCH-2 is a valid resource without carrier switching . After the PUCCH-1 on the first carrier is switched to the second carrier, the PUCCH-1 on the second carrier is used for transmission.

Step 2: Determine the overlapping situation of the second carrier, and there is no overlap between the PUCCH-1 of the second carrier and the PUCCH-2 of the first carrier.

Step 3: Determine the overlap between the PUCCH of the first carrier and the second carrier and the PUSCH resources of the PUCCH group or cell group carrier, there is PUSCH transmission on the third carrier, and it is related to the PUCCH-1 on the second carrier and the first There is overlap between the PUCCH-2 on the carrier, and the UCI carried by the PUCCH-1 on the second carrier and the PUCCH-2 on the first carrier is transferred to the PUSCH on the third carrier for transmission.

As shown in Figure 6, based on the same inventive concept, the embodiment of the present application also provides an uplink channel transmission device 600, which includes: a processing module 601, configured to support uplink channel overlap and physical uplink control channel PUCCH carrier switching , the PUCCH carrier switching is performed preferentially, and then the overlapping uplink channel is processed.

In one embodiment, the processing module 601 includes a switching unit:

In one embodiment, the first carrier includes at least one of the following:

Pcell carrier, PUCCH Scell carrier, PScell carrier.

In an embodiment, the first PUCCH resource is a resource for carrying at least one of the following information:

HARQ-ACK, CSI, SR.

In one embodiment, if the first PUCCH resource is used to bear the HARQ-ACK, the first PUCCH resource is determined based on the RRC configuration and the DCI indication of the PDSCH;

In one embodiment, when the switching unit switches the PUCCH resources of the first carrier to the PUCCH resources of the second carrier, the order of processing the overlapping uplink channels is:

The overlap between the PUCCH resources of the second carrier, the overlap between the PUCCH of the second carrier and the PUCCH of the first carrier, and the overlap between the PUSCH resources of the second carrier and other carriers.

In one embodiment, the processing module 601 further includes an overlapping processing unit:

As shown in FIG. 7, the embodiment of the present application provides a schematic structural diagram of a communication device, which may be a network side device or a terminal device, including a processor 700, a memory 701, and a transceiver 702;

The processor 700 is responsible for managing the bus architecture and general processing, and the memory 701 can store data used by the processor 700 when performing operations. The transceiver 702 is used to receive and transmit data under the control of the processor 700 .

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 700 and various circuits of the memory represented by the memory 701 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 701 can store data used by the processor 701 when performing operations.

The process disclosed in the embodiment of the present application may be applied to the processor 700 or implemented by the processor 700 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 700 or instructions in the form of software. The processor 700 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 701, and the processor 700 reads the information in the memory 701, and completes the steps of the processing flow of the uplink channel transmission in combination with its hardware.

Specifically, the processor 700 is configured to read the program in the memory 701 and execute:

If PUCCH carrier switching is supported and uplink channel overlap exists, PUCCH carrier switching is performed first, and then the overlapping uplink channel is processed.

In some embodiments, the processor 700 is specifically configured to:

In some embodiments, the first carrier includes at least one of the following:

Pcell carrier, PUCCH Scell carrier, PScell carrier.

HARQ-ACK, CSI, SR.

In some embodiments, if the first PUCCH resource is used to bear the HARQ-ACK, the first PUCCH resource is determined based on RRC configuration and a DCI indication of scheduling PDSCH, or determined based on RRC configuration;

The overlap between the PUCCH resources of the second carrier, the overlap between the PUCCH of the second carrier and the PUCCH of the first carrier, the PUCCH of the first carrier and the second carrier, and the PUSCH resources of the physical uplink control channel group or the carrier in the cell group overlap between.

In some embodiments, the overlapping uplink channels are processed, and the processor 700 is specifically configured to:

The present application is described above with reference to block diagrams and/or flowcharts illustrating methods, apparatus (systems) and/or computer program products according to embodiments of the present application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, a special purpose computer and/or other programmable data processing apparatus to produce a machine such that instructions executed via the computer processor and/or other programmable data processing apparatus create a means of implementing the functions/acts specified in the block diagrams and/or flowchart blocks.

Accordingly, the present application may also be implemented in hardware and/or software (including firmware, resident software, microcode, etc.). Still further, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by an instruction execution system or Used in conjunction with command execution systems. In the context of this application, a computer-usable or computer-readable medium may be any medium that may contain, store, communicate, transmit, or convey a program for use by, or in connection with, an instruction execution system, apparatus, or device device or equipment used.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A transmission method for an uplink channel, characterized in that the method comprises:

If the physical uplink control channel PUCCH carrier switching is supported and the uplink channels overlap, the PUCCH carrier switching is performed first, and then the overlapping uplink channels are processed.
The method according to claim 1, wherein said performing PUCCH carrier switching comprises:

If carrier switching needs to be performed on the first PUCCH resource of the first carrier, the information to be transmitted corresponding to the first PUCCH resource is switched to the second PUCCH resource of the second carrier for transmission.
The method according to claim 2, wherein the first carrier comprises at least one of the following:

Primary cell Pcell carrier, physical uplink control channel secondary cell PUCCH Scell carrier, primary secondary cell PScell carrier.
The method according to claim 2, wherein the first PUCCH resource is a resource for carrying at least one of the following information:

Hybrid automatic repeat request acknowledgment information HARQ-ACK, channel state information CSI, scheduling request SR.
The method according to claim 4, wherein if the first PUCCH resource is used to carry the HARQ-ACK, the first PUCCH resource is configured and scheduled based on the Radio Resource Control (RRC) Physical Downlink Control Channel (PDSCH) The downlink control information DCI indication is determined, or is determined based on the RRC configuration;

If the first PUCCH resource is used to bear the CSI or the SR, the first PUCCH resource is determined based on RRC configuration.
The method according to claim 1, wherein if the PUCCH resources of the first carrier are switched to the PUCCH resources of the second carrier, the order of processing the overlapping uplink channels is:

Overlap between PUCCH resources of the second carrier, overlap between PUCCH of the second carrier and PUCCH of the first carrier, PUCCH of the first or second carrier and PUSCH of carriers in the same physical uplink control channel group or cell group Overlap between resources.
The method according to claim 6, wherein the processing of overlapping uplink channels comprises:

The overlapping uplink channels are processed according to a preset multiplexing rule.
A communication device, characterized in that it includes: a processor, a memory, and a transceiver;

memory for storing computer programs;

a transceiver, configured to send and receive data under the control of the processor;

a processor for reading the computer program in said memory and performing the following operations:

If the physical uplink control channel PUCCH carrier switching is supported and the uplink channels overlap, the PUCCH carrier switching is performed first, and then the overlapping uplink channels are processed.
The communication device according to claim 8, wherein the processor is specifically configured to:

If carrier switching needs to be performed on the first PUCCH resource of the first carrier, the information to be transmitted corresponding to the first PUCCH resource is switched to the second PUCCH resource of the second carrier for transmission.
The communication device according to claim 9, wherein the first carrier comprises at least one of the following:

Primary cell Pcell carrier, physical uplink control channel secondary cell PUCCH Scell carrier, primary secondary cell PScell carrier.
The communication device according to claim 9, wherein the first PUCCH resource is a resource for carrying at least one of the following information:

Hybrid automatic repeat request acknowledgment information HARQ-ACK, channel state information CSI, scheduling request SR.
The communication device according to claim 11, wherein, if the first PUCCH resource is used to carry the HARQ-ACK, the first PUCCH resource is configured and scheduled based on a radio resource control (RRC) physical downlink control channel The downlink control information DCI indication of PDSCH is determined, or determined based on RRC configuration;

If the first PUCCH resource is used to bear the CSI or the SR, the first PUCCH resource is determined based on RRC configuration.
The communication device according to claim 8, wherein if the PUCCH resources of the first carrier are switched to the PUCCH resources of the second carrier, the order of processing the overlapping uplink channels is:

Overlap between PUCCH resources of the second carrier, overlap between PUCCH of the second carrier and PUCCH of the first carrier, PUCCH of the first or second carrier and PUSCH of carriers in the same physical uplink control channel group or cell group Overlap between resources.
The communication device according to claim 13, wherein the processing of overlapping uplink channels is performed, and the processor is specifically used for:

The overlapping uplink channels are processed according to a preset multiplexing rule.
A transmission device for an uplink channel, characterized in that the device comprises:

The processing module is configured to give priority to performing PUCCH carrier switching if the physical uplink control channel PUCCH carrier switching is supported and there is overlap of uplink channels, and then process the overlapped uplink channels.
The device according to claim 15, wherein the processing module comprises a switching unit;

The switching unit is configured to switch the to-be-transmitted information corresponding to the first PUCCH resource to the second PUCCH resource of the second carrier for transmission if carrier switching is required for the first PUCCH resource of the first carrier.
The device according to claim 16, wherein the first carrier comprises at least one of the following:

Primary cell Pcell carrier, physical uplink control channel secondary cell PUCCH Scell carrier, primary secondary cell PScell carrier.
The device according to claim 16, wherein the first PUCCH resource is a resource for carrying at least one of the following information:

Hybrid automatic repeat request acknowledgment information HARQ-ACK, channel state information CSI, scheduling request SR.
The device according to claim 18, wherein if the first PUCCH resource is used to carry the HARQ-ACK, the first PUCCH resource is based on Radio Resource Control (RRC) configuration and scheduling Physical Downlink Control Channel (PDSCH) The downlink control information DCI indication is determined, or is determined based on the RRC configuration;

If the first PUCCH resource is used to bear the CSI or the SR, the first PUCCH resource is determined based on RRC configuration.
The device according to claim 15, wherein when the switching unit switches the PUCCH resources of the first carrier to the PUCCH resources of the second carrier, the order of processing the overlapping uplink channels is:

Overlap between PUCCH resources of the second carrier, overlap between PUCCH of the second carrier and PUCCH of the first carrier, PUCCH of the first or second carrier and PUSCH of carriers in the same physical uplink control channel group or cell group Overlap between resources.
The device according to claim 20, wherein the processing module further comprises an overlapping processing unit:

The overlapping processing unit is configured to process the overlapping uplink channels according to a preset multiplexing rule.
A computer storage medium, characterized in that the computer storage medium stores a computer program, and the computer program is used to make a computer execute the method according to any one of claims 1-7.