CN113676291B

CN113676291B - Information sending method and equipment

Info

Publication number: CN113676291B
Application number: CN202010413298.4A
Authority: CN
Inventors: 薛祎凡; 张健; 李超君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2023-03-10
Anticipated expiration: 2040-05-15
Also published as: CN113676291A; WO2021227981A1

Abstract

The application discloses a method and equipment for sending information, wherein the method comprises the following steps: generating hybrid automatic repeat request determination information HARQ-ACK of a first device, and transmitting the HARQ-ACK of the first device to a second device by the first device, wherein the codebook size of the HARQ-ACK of the first device is related to the number of hybrid automatic repeat request HARQ processes of the first device. By adopting the method and the equipment provided by the application, the codebook size of the HARQ-ACK can be optimized according to the number of the HARQ processes, and uplink transmission resources are saved.

Description

Information sending method and equipment

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method and a device for sending information.

Background

In the data transmission process of a Long Term Evolution (LTE) system, a hybrid automatic repeat request (HARQ) technology is mainly used to ensure the correctness of data transmission on the premise of reducing the number of retransmissions. The HARQ technology is a technology formed by combining Forward Error Correction (FEC) coding and automatic repeat request (ARQ), and has the following main principles: redundant information is added at the sending end through FEC, so that the receiving end can correct a part of errors, and retransmission is carried out aiming at the errors which cannot be corrected by the receiving end. The working process specifically comprises the following steps: the sending end sends a data packet to the receiving end, and the data packet carries redundant information for correcting errors. After receiving the data packet, the receiving end checks whether the received data packet is erroneous using a check code (e.g., a CRC check code). If the check is error-free, a positive determination message (e.g., ACK) is sent to the sender, and the sender will continue to send the next data packet after receiving the positive determination message. If the check is erroneous and the error cannot be corrected, the receiving end sends negative confirmation information (e.g., NACK) to the transmitting end, and the transmitting end retransmits the data packet. In the LTE system, the positive acknowledgment information and the negative acknowledgment information transmitted by the receiving end are collectively referred to as HARQ-ACK information.

As shown in fig. 1, HARQ uses stop-and-wait protocol (stop-and-wait protocol) to transmit data, such as Transport Block (TB) (0,1,2,3,4 as shown). According to the stop-wait protocol, the transmitting end sends a TB, and stops to wait for the acknowledgement information/feedback information. The receiving end acknowledges the TB with 1 bit of information, either positively (ACK) or Negatively (NACK). Therefore, a new data block needs to wait for the previous data block to be successfully transmitted before being transmitted. The sending end stops waiting for an acknowledgement after each transmission, which results in a low throughput of the communication system. In order to improve the throughput of the communication system, the concept of HARQ process was introduced from LTE and is used in a New Radio (NR) system. As shown in fig. 2, by using multiple HARQ processes and distinguishing them by different HARQ process numbers (HARQ process numbers) or HARQ process IDs (HARQ process IDs), when a current HARQ process (HARQ 0, as shown in the figure, H0) waits for acknowledgement information, the transmitting end can continue to transmit data using one or more HARQ processes (HARQ 1, HARQ 2, HARQ 3, as shown in the figure, H1, H2, H3). Specifically, the UE uses HARQ process H1, H2, H3 to continue to send the TB (1,2, 3 as shown) after HARQ process H0 sends the TB (0 as shown) without waiting until H0 receives the acknowledgement of TB (0). Therefore, in such application scenario, it is possible to improve how to generate the HARQ-ACK and optimize the codebook size of the HARQ-ACK accordingly.

Disclosure of Invention

The application provides a method and equipment for sending information, and the method can optimize the size of a codebook of the sent HARQ-ACK, thereby saving uplink transmission resources for UE.

In a first aspect, the present application provides a method for sending information, where the method includes: the first equipment generates hybrid automatic repeat request-acknowledgement (HARQ-ACK) of the first equipment; and the first equipment sends the HARQ-ACK of the first equipment to the second equipment, wherein the codebook size of the HARQ-ACK of the first equipment is related to the number of hybrid automatic repeat request (HARQ) processes of the first equipment. Since the codebook size of the HARQ-ACK is related to the number of HARQ processes of the first device, the codebook size can be optimized, thereby saving uplink transmission resources for the first device and reducing the occupation of network resources.

According to the first aspect, in a first implementation manner of the first aspect, the generating the HARQ-ACK of the first device includes generating the HARQ-ACK of the first device according to one of a first generation manner, a second generation manner, and a third generation manner according to the indication information sent by the second device, where the first generation manner is a semi-static codebook generation manner, and the first generation manner generates the HARQ-ACK of the first device according to the candidate position of the physical downlink shared channel PDSCH and the K1 set, the second generation manner is a dynamic codebook generation manner, and the second generation manner generates the HARQ-ACK of the first device according to the data allocation indication DAI in the downlink control information DCI, and the third generation manner generates the HARQ-ACK of the first device according to the number of HARQ processes. The K1 value is a time interval between the PDSCH carrying the downlink data and the HARQ-ACK feedback information of the downlink data, and the unit is a time slot, the K1 set is a set of possible values of the time interval statically configured to the first device by the second device, and the second device dynamically instructs the first device to use a specific K1 value in the K1 set during each data scheduling. Under different conditions, for example, different network environments/conditions, the first device generates the HARQ-ACK through the indication information sent by the second device in different generation manners, so that the flexibility of generating the HARQ-ACK is improved, and the uplink transmission efficiency of the first device is improved.

According to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the generating the HARQ-ACK of the first device in one of the first generation manner, the second generation manner, and the third generation manner according to the indication information sent by the second device includes: when the number of the HARQ processes is smaller than a first threshold value, generating HARQ-ACK of the first equipment in a third generation mode; and when the number of the HARQ processes is larger than or equal to a first threshold value, generating the HARQ-ACK of the first equipment in a first generation mode or a second generation mode. When the number of HARQ processes is smaller than the first threshold, which means that the number of HARQ processes used by the first device is small, the third generation method is used to generate HARQ-ACK, so that the codebook size is small, which is beneficial to improving the uplink transmission efficiency of the first device.

According to the first implementation manner of the first aspect, in a third implementation manner of the first aspect, the indication information is used to generate an HARQ-ACK of the first device in one of the first generation manner, the second generation manner, and the third generation manner when it is determined that the first device receives downlink data on the target bandwidth portion BWP, where the HARQ-ACK of the first device is an HARQ-ACK of the downlink data on the target BWP. Since the first device may jump/switch over different BWPs based on the configuration of the second device, when the first device is on the target BWP, it may instruct it to generate HARQ-ACK in a specific generation manner so as to match the target BWP where it is located, which is beneficial to improve the uplink transmission efficiency of the first device on the target BWP.

According to any one of the first to third implementation manners of the first aspect above, in a fourth implementation manner of the first aspect, the method further comprises: and receiving Radio Resource Control (RRC) information or media access control (MAC CE) information or Downlink Control Information (DCI) from the second equipment, wherein the RRC information or the MAC CE information comprises indication information.

According to a fourth implementation of the first aspect, in the fifth implementation of the first aspect, the method further comprises: the RRC contains a system information block SIB, which includes indication information.

According to any one of the first to fifth implementation manners of the first aspect, in a sixth implementation manner of the first aspect, the third generation manner further determines, according to the sequence number of the HARQ process, a position of the feedback bit corresponding to each HARQ process in the HARQ-ACK of the first device.

According to the first aspect, in a seventh implementation form of the first aspect, the generating the HARQ-ACK for the first device comprises: determining a first codebook size for HARQ-ACK of the first device, the first codebook size being related to a first generation manner; determining a second codebook size for the HARQ-ACK of the first device, the second codebook size being related to a third generation approach; when the first codebook size is smaller than or equal to the second codebook size, the HARQ-ACK of the first device is generated in a first generation mode and has the first codebook size, wherein the first generation mode is used for generating the HARQ-ACK of the first device according to the candidate position of the PDSCH and the K1 set; when the first codebook size is larger than the second codebook size, the HARQ-ACK of the first device is generated in a third generation manner and has the second codebook size, wherein the third generation manner generates the HARQ-ACK of the first device according to the number of HARQ processes. By comparing the sizes of the HARQ-ACK codebook sizes related to different generation modes, the HARQ-ACK with the smaller codebook size is determined for the first device, and the number of feedback bits of the HARQ-ACK is optimized while feedback information conveyed by the HARQ codebook is not changed.

According to a seventh implementation form of the first aspect, in an eighth implementation form of the first aspect, the first device has a plurality of activated cells, wherein the HARQ-ACK of the first device generated in the first generation manner is a HARQ-ACK of the first device with a first codebook size generated traversing each of the plurality of activated cells in the first generation manner; and the HARQ-ACK of the first device generated in the third generation manner is the HARQ-ACK of the first device having the second codebook size generated by traversing each of the plurality of activated cells in the third generation manner.

According to the first aspect, in a ninth implementation manner of the first aspect, the first device has multiple activated cells, and generating HARQ-ACK of the first device includes: generating a plurality of cell-corresponding HARQ-ACKs for the plurality of activated cells, and concatenating the plurality of cell-corresponding HARQ-ACKs to generate the HARQ-ACK of the first device, wherein generating each cell-corresponding HARQ-ACK comprises: determining a first codebook size of HARQ-ACK corresponding to the cell, the first codebook size being related to a first generation method; determining a second codebook size of the HARQ-ACK corresponding to the cell, the second codebook size being related to a third generation manner; when the first codebook size is less than or equal to the second codebook size, the HARQ-ACK corresponding to the cell is generated in a first generation manner and has the first codebook size; when the first codebook size is larger than the second codebook size, the HARQ-ACK corresponding to the cell is generated in a third generation manner and has the second codebook size. The HARQ-ACK with smaller codebook size is determined for each cell by comparing the sizes of the HARQ-ACK codebook sizes related to different generation manners on each cell, so that the HARQ-ACK of the first device generated after concatenation has minimized codebook size and the number of feedback bits thereof is minimized while feedback information conveyed by the HARQ codebook is not changed.

According to the first aspect, or any one of the foregoing implementation manners of the first aspect, in a tenth implementation manner of the first aspect, the number of HARQ processes is the number of HARQ processes supported by the first device, or the number of HARQ processes configured by the first device.

In a second aspect, the present application provides a method of information processing, the method comprising: receiving hybrid automatic repeat request-acknowledgement (HARQ-ACK) of first equipment; processing the HARQ-ACK according to the codebook size of the HARQ-ACK; wherein the codebook size of the HARQ-ACK is related to the number of hybrid automatic repeat request (HARQ) processes of the first device.

According to a second aspect, in a first implementation form of the second aspect, the method further comprises: and transmitting instruction information to the first equipment to instruct the first equipment to generate the HARQ-ACK according to one of a first generation mode, a second generation mode and a third generation mode, wherein the first generation mode is a semi-static codebook generation mode, the first generation mode generates the HARQ-ACK according to the candidate position of the Physical Downlink Shared Channel (PDSCH) and the K1 set, the second generation mode is a dynamic codebook generation mode, the second generation mode generates the HARQ-ACK according to the Data Allocation Instruction (DAI) in the Downlink Control Information (DCI), and the third generation mode generates the HARQ-ACK according to the number of the HARQ processes. By instructing the first device to generate HARQ-ACK in one of three generation manners, the flexibility of generating HARQ-ACK may be increased, i.e. the manner in which the first device is instructed to generate HARQ-ACK may depend on the actual situation, e.g. the actual network situation.

According to the first implementation manner of the second aspect, in the second implementation manner of the second aspect, the indication information includes a first threshold, and is used to instruct the first device to generate the HARQ-ACK in one of the first generation manner, the second generation manner, and the third generation manner according to a comparison result between the first threshold and the number of HARQ processes. When the number of HARQ processes of the first device is smaller than the first threshold, which means that the number of HARQ processes used by the first device is small, the HARQ-ACK generated by the third generation method may make the codebook size small, which is beneficial to reducing network resource occupation.

According to the first implementation manner of the second aspect, in a third implementation manner of the second aspect, when the indication information is used to indicate that the first device receives downlink data on the target bandwidth portion BWP, the HARQ-ACK is generated in one of the first generation manner, the second generation manner, and the third generation manner, where the HARQ-ACK is HARQ-ACK of the downlink data on the target BWP. Since the second device may configure the first device to jump/switch over on different BWPs, when the second device configures the first device on the target BWP, the first device may be instructed to generate HARQ-ACK in a specific generation manner so as to match the target BWP where it is located, which is beneficial to reduce network resource occupation.

According to any one of the first to third implementation manners of the second aspect above, in a fourth implementation manner of the second aspect, the sending the indication information to the first device includes sending radio resource control, RRC, information or media access control, layer control, MAC CE, information or downlink control information, DCI, including the indication information to the first device.

In a third aspect, the present application provides a first device, comprising: a processor for generating hybrid automatic repeat request-determining information HARQ-ACK of a first device; and the transceiver is used for sending the HARQ-ACK of the first equipment to the second equipment, wherein the codebook size of the HARQ-ACK of the first equipment is related to the process number of the hybrid automatic repeat request HARQ of the first equipment. Since the codebook size of the HARQ-ACK is related to the number of HARQ processes of the first device, the codebook size can be optimized, thereby saving uplink transmission resources for the first device and reducing the occupation of network resources.

According to the third aspect, in a first implementation manner of the third aspect, the transceiver is further configured to receive indication information of the second device, and the processor generates HARQ-ACK of the first device according to the indication information in one of a first generation manner, a second generation manner, and a third generation manner, where the first generation manner is a semi-static codebook generation manner, and the first generation manner generates HARQ-ACK of the first device according to a candidate position of the physical downlink shared channel PDSCH and a K1 set, the second generation manner is a dynamic codebook generation manner, and the second generation manner generates HARQ-ACK of the first device according to a data allocation indication DAI in downlink control information DCI, and the third generation manner is to generate HARQ-ACK of the first device according to the number of HARQ processes. Under different conditions, for example, different network environments/conditions, the processor generates the HARQ-ACK through different generation modes according to the indication information sent by the second device, so that the flexibility of generating the HARQ-ACK is improved, and the uplink transmission efficiency of the first device is improved.

According to the third aspect, in a second implementation form of the third aspect, the processor is further configured to: determining a first codebook size for HARQ-ACK of the first device, the first codebook size being related to a first generation manner; determining a second codebook size for HARQ-ACK of the first device, the second codebook size being related to a third generation manner; and determining HARQ-ACK of the first device, wherein the HARQ-ACK of the first device is generated in a first generation mode and has a first codebook size when the first codebook size is smaller than or equal to the second codebook size, the first generation mode generates the HARQ-ACK of the first device according to the candidate position of the PDSCH and the K1 set, and the HARQ-ACK of the first device is generated in a third generation mode and has a second codebook size when the first codebook size is larger than the second codebook size, and the third generation mode generates the HARQ-ACK of the first device according to the number of HARQ processes. The processor determines the HARQ-ACK with smaller codebook size by comparing the sizes of the HARQ-ACK codebook sizes related to different generation modes, and optimizes the number of feedback bits of the HARQ-ACK codebook without changing the feedback information conveyed by the HARQ codebook.

According to the third aspect, or the first implementation of the third aspect, in a third implementation of the third aspect, the indication information includes a first threshold, the processor further compares the first threshold with the number of HARQ processes, and when the number of HARQ processes is smaller than the first threshold, the processor generates HARQ-ACKs for the first device in a third generation manner, and when the number of HARQ processes is greater than or equal to the first threshold, the processor generates HARQ-ACKs for the first device in the first generation manner or in the second generation manner. When the number of HARQ processes is smaller than the first threshold, which means that the number of HARQ processes used by the first device is small, the processor generates HARQ-ACK by the third generation method, so that the codebook size is small, which is beneficial to improving the uplink transmission efficiency of the first device.

According to the third aspect or the first implementation manner of the third aspect, in a fourth implementation manner of the third aspect, when determining that the first device receives downlink data on the target bandwidth portion BWP according to the indication information, the processor generates HARQ-ACK of the first device in one of the first generation manner, the second generation manner, and the third generation manner, where the HARQ-ACK of the first device is HARQ-ACK of the downlink data on the target BWP. Since the first device may jump/switch over different BWPs based on the configuration of the second device, the processor determines from the indication information that when the first device is on the target BWP, it generates HARQ-ACK in a specific generation manner to match the target BWP where the first device is located, which is beneficial to improving the efficiency of uplink transmission of the first device on the target BWP. According to the third aspect and any one of the first, third and fourth implementation manners of the third aspect, in a fifth implementation manner of the third aspect, the transceiver receives radio resource control, RRC, information or medium access control layer control element, MAC CE, information or downlink control information, DCI, including the indication information, from the second device.

According to the third aspect or a fifth implementation form of the third aspect, in a sixth implementation form of the third aspect, the RRC contains a system information block, SIB, and the SIB includes the indication information.

According to the third aspect and any one implementation manner of the first, third to sixth implementation manners of the third aspect, in a seventh implementation manner of the third aspect, the third generation manner further determines, according to the sequence number of the HARQ process, a position of the feedback bit corresponding to each HARQ process in the HARQ-ACK of the first device.

According to the third aspect or the second implementation manner of the third aspect, in an eighth implementation manner of the third aspect, the first device has a plurality of activated cells, wherein the HARQ-ACK of the first device generated by the processor in the first generation manner is a HARQ-ACK of the first device with a first codebook size generated by traversing each of the plurality of activated cells in the first generation manner; and the HARQ-ACK for the first device generated by the processor in the third generation manner is a HARQ-ACK for the first device having the second codebook size generated by traversing each of the plurality of activated cells in the third generation manner.

According to the third aspect, in a ninth implementation manner of the third aspect, the first device has multiple activated cells, and the generating of the HARQ-ACK of the first device by the processor includes: the processor generates a plurality of cell-corresponding HARQ-ACKs for a plurality of activated cells, and the processor concatenates the plurality of cell-corresponding HARQ-ACKs to generate the HARQ-ACK for the first device, wherein the processor generating each cell-corresponding HARQ-ACK comprises: the processor determines a first codebook size of a HARQ-ACK corresponding to a cell, the first codebook size being related to a first generation method; the processor determines a second codebook size for the HARQ-ACK corresponding to the cell, the second codebook size being related to a third generation manner; when the first codebook size is less than or equal to the second codebook size, the HARQ-ACK corresponding to the cell is generated in a first generation manner and has the first codebook size; when the first codebook size is larger than the second codebook size, the HARQ-ACK corresponding to the cell is generated in a third generation manner and has the second codebook size. The processor determines the HARQ-ACK with a smaller codebook size for each cell by comparing the sizes of the HARQ-ACK codebook sizes associated with different generation manners on each cell, so that the HARQ-ACK of the first device generated after concatenation has a minimized codebook size and minimizes the number of feedback bits thereof while not changing the feedback information conveyed by the HARQ codebook.

According to the third aspect or any one of the above implementation manners of the third aspect, in a tenth implementation manner of the third aspect, the number of HARQ processes is the number of HARQ processes supported by the first device, or the number of HARQ processes configured by the first device.

In a fourth aspect, the present application provides a second device comprising: a transceiver for receiving hybrid automatic repeat request-determining information HARQ-ACK of a first device; a processor for processing the HARQ-ACK according to the codebook size of the HARQ-ACK, the codebook size of the HARQ-ACK being related to the number of hybrid automatic repeat request HARQ processes of the first device.

According to a fourth aspect, in a first implementation form of the fourth aspect, the transceiver is further configured to: and sending indication information to the first device, wherein the indication information is used for indicating the first device to generate HARQ-ACK according to one of a first generation mode, a second generation mode and a third generation mode, the first generation mode is a semi-static codebook generation mode, the first generation mode generates HARQ-ACK according to the candidate position of the Physical Downlink Shared Channel (PDSCH) and the K1 set, the second generation mode is a dynamic codebook generation mode, the second generation mode generates HARQ-ACK according to the Data Allocation Indication (DAI) in the Downlink Control Information (DCI), and the third generation mode generates HARQ-ACK according to the number of HARQ processes. By instructing the first device to generate HARQ-ACK in one of three generation manners, the flexibility of generating HARQ-ACK may be increased, i.e. the manner in which the first device is instructed to generate HARQ-ACK may depend on the actual situation, e.g. the actual network situation.

According to the first implementation manner of the fourth aspect, in the second implementation manner of the fourth aspect, the indication information sent by the transceiver to the first device includes a first threshold, and is used for indicating the first device to generate the HARQ-ACK in one of the first generation manner, the second generation manner, and the third generation manner according to the comparison result between the first threshold and the number of HARQ processes. When the number of HARQ processes of the first device is smaller than the first threshold, which means that the number of HARQ processes used by the first device is small, the generation of HARQ-ACK by the third generation method can make the codebook size smaller, which is beneficial to reducing network resource occupation.

According to the first implementation manner of the fourth aspect, in a third implementation manner of the fourth aspect, when the indication information sent by the transceiver to the first device is used to indicate that the first device receives downlink data on the target bandwidth portion BWP, the HARQ-ACK is generated in one of the first generation manner, the second generation manner, and the third generation manner, where the HARQ-ACK is HARQ-ACK of the downlink data on the target BWP. Since the second device may configure the first device to jump/switch over on different BWPs, when the second device configures the first device on the target BWP, the first device may be instructed to generate HARQ-ACK in a specific generation manner so as to match the target BWP where it is located, which is beneficial to reduce network resource occupation.

According to a fourth implementation manner of the fourth aspect, in the fourth implementation manner of the fourth aspect, the transceiver transmits the indication information to the first device, and the transceiver transmits radio resource control RRC information or media access control layer control element MAC CE information or downlink control information DCI including the indication information to the first device.

In a fifth aspect, the present application provides a communication system comprising a first device and a second device. The first device comprises a processor and a transceiver, wherein the processor of the first device is used for generating hybrid automatic repeat request determination information HARQ-ACK of the first device, and the transceiver of the first device is used for transmitting the HARQ-ACK of the first device to the second device, wherein the codebook size of the HARQ-ACK of the first device is related to the number of processes of the hybrid automatic repeat request HARQ of the first device. The second device includes a transceiver configured to receive HARQ-ACK of the first device and a processor configured to process the HARQ-ACK of the first device according to a codebook size of the HARQ-ACK. Because the codebook size of the HARQ-ACK of the first device is related to the number of HARQ processes of the first device, the codebook size thereof can be optimized, thereby saving uplink transmission resources for the first device and reducing the occupation of network resources.

According to a fifth aspect, in a first implementation manner of the fifth aspect, the transceiver of the second device is further configured to transmit, to the first device, indication information for indicating that the first device generates HARQ-ACK of the first device in one of a first generation manner, a second generation manner, and a third generation manner, wherein the transceiver of the first device is further configured to receive the indication information of the second device, and the processor of the first device generates HARQ-ACK of the first device in one of the first generation manner, the second generation manner, and the third generation manner according to the indication information, wherein the first generation manner is a semi-static codebook generation manner, the first generation manner generates HARQ-ACK of the first device according to a candidate position of a physical downlink shared channel PDSCH and a K1 set, the second generation manner is a dynamic codebook generation manner, the second generation manner generates HARQ-ACK of the first device according to data allocation indication i in downlink control information DCI, and the third generation manner is a generation manner, the HARQ-ACK of the first device is generated according to the number of HARQ-ACK processes of the first device. Under different conditions, for example, different network environments/conditions, the first device may generate HARQ-ACK in different generation manners through the indication information sent by the second device to the first device, so as to improve flexibility of generating HARQ-ACK and facilitate improvement of uplink transmission efficiency of the first device.

According to a fifth aspect, in a second implementation form of the fifth aspect, the processor of the first device is further configured to determine a first codebook size for HARQ-ACK of the first device, the first codebook size being related to the first generation approach; determining a second codebook size for HARQ-ACK of the first device, the second codebook size being related to the third generation scheme; determining HARQ-ACK of first equipment, wherein when the first codebook size is smaller than or equal to the second codebook size, the HARQ-ACK of the first equipment generated by a processor of the first equipment is generated in a first generation mode and has the first codebook size, wherein the first generation mode is a semi-static codebook generation mode, and the first generation mode generates the HARQ-ACK of the first equipment according to a candidate position of a Physical Downlink Shared Channel (PDSCH) and a set K1; and when the first codebook size is larger than the second codebook size, the processor of the first device generates the HARQ-ACK of the first device in a third generation mode and has the second codebook size, wherein the third generation mode generates the HARQ-ACK of the first device according to the number of the HARQ processes. The first device can determine the HARQ-ACK with smaller codebook size by comparing the sizes of the HARQ-ACK codebook sizes related to different generation modes, and optimize the number of feedback bits of the HARQ-ACK codebook without changing the feedback information conveyed by the HARQ codebook.

In a sixth aspect, the present application provides a computer-readable storage medium comprising instructions that, when executed on a communication device, cause the communication device to perform a method as in any of the above implementations.

In a seventh aspect, the present application provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory to implement the method in any of the above implementation manners.

In an eighth aspect, the present application provides an apparatus comprising a processor and a memory, wherein the memory has stored thereon a program or instructions which, when executed by the processor, implements the method as in any of the above implementations.

Drawings

FIG. 1 is a schematic diagram of data transmission and reception;

FIG. 2 is another schematic diagram of data transmission and reception;

fig. 3 is a schematic diagram of a communication system provided in an embodiment of the present application;

fig. 4 is a schematic time slot diagram of downlink data transmission;

FIGS. 5A and 5B are schematic and flow diagrams of a first generation approach;

FIGS. 6A and 6B are a schematic and flow diagram of a second generation approach;

fig. 7 is a flowchart of a third generation manner provided in the embodiment of the present application;

fig. 8A is a flowchart of an information sending method according to an embodiment of the present application;

fig. 8B is a flowchart of an information processing method according to an embodiment of the present application;

fig. 9A is a flowchart of an information sending method according to another embodiment of the present application;

fig. 9B is a flowchart of an information sending method according to another embodiment of the present application;

fig. 10 is a flowchart of an information sending method according to another embodiment of the present application;

fig. 11 is a flowchart of an information sending method according to another embodiment of the present application;

fig. 12A and 12B are flowcharts of an information sending method according to another embodiment of the present application;

fig. 13 is a schematic diagram of a communication system according to another embodiment of the present application;

fig. 14 is a schematic structural diagram of a base station according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a UE according to an embodiment of the present application;

fig. 16 is a schematic diagram of an information sending apparatus according to an embodiment of the present application;

fig. 17 is a schematic diagram of an information processing apparatus according to an embodiment of the present application;

fig. 18 is a schematic diagram of a communication system according to another embodiment of the present application.

Detailed Description

The application provides an information sending method and equipment, which can determine the codebook size of hybrid automatic repeat request information under the scene of dividing a search space listening period and a listening offset value. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the embodiments of the method and the device can be mutually referred, and repeated parts are not described again.

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

For ease of understanding, the examples are given to illustrate concepts related to embodiments of the present application by reference, as follows:

1) A base station is a device deployed in a radio access network to provide a radio communication function for a User Equipment (UE). The base station 101 may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and the like. In systems using different radio access technologies, names of devices having functions of base stations may be different, for example, in an LTE system, referred to as an evolved NodeB (eNB or eNodeB), in a third generation (3 rd generation,3 g) system, referred to as a NodeB (Node B), and in an NR system, referred to as a gNB, etc. For convenience of description, in all embodiments of the present application, apparatuses providing a UE with a wireless communication function are collectively referred to as a base station.

2) The UE may include various handheld devices, vehicle mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities. The UE may also be referred to as a Mobile Station (MS), a terminal (terminal), a terminal equipment (terminal equipment), and may further include a subscriber unit (subscriber unit), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a Personal Digital Assistant (PDA) computer, a tablet computer, a wireless modem (modem), a handheld device (hand held), a laptop computer (laptop computer), a cordless phone (cordless phone), or a Wireless Local Loop (WLL) station, a Machine Type Communication (MTC) terminal, and the like. For convenience of description, in all embodiments of the present application, the above-mentioned devices are collectively referred to as a UE.

3) The communication system may be a Radio Access Technology (RAT) system, such as a Code Division Multiple Access (CDMA), a Time Division Multiple Access (TDMA), a Frequency Division Multiple Access (FDMA), an Orthogonal Frequency Division Multiple Access (OFDMA), a single carrier FDMA (SC-FDMA), and other systems. The term "system" may be used interchangeably with "network". CDMA systems may implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, and the like. UTRA may include Wideband CDMA (WCDMA) technology and other CDMA variant technologies. CDMA2000 may cover the Interim Standard (IS) 2000 (IS-2000), IS-95 and IS-856 standards. TDMA systems may implement wireless technologies such as global system for mobile communications (GSM). The OFDMA system may implement wireless technologies such as evolved universal terrestrial radio access (E-UTRA), ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash OFDMA, etc. UTRA and E-UTRA are UMTS as well as UMTS evolved versions. Various versions of 3GPP in Long Term Evolution (LTE) and LTE-based evolution are new versions of UMTS using E-UTRA. In addition, the communication system may also be applicable to future-oriented communication technologies, and as long as a communication system adopting a new communication technology includes establishment of a bearer, the technical solutions provided in the embodiments of the present application are applicable. The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

4) Hybrid Automatic Repeat Request (HARQ) information is mainly used for determining data sent by a sending end, and the HARQ information may carry at least one of ACK (determination), NACK (negative acknowledgement), discontinuous Transmission (DTX), and the like. For example, if the second device sends a data to the first device, and the second device receives the data and checks that the data is error-free, the first device may send harq information to the second device, where the harq information may carry an ACK. In one example, the hybrid automatic repeat request information may be referred to as hybrid automatic repeat request acknowledgement (HARQ-ACK) information. If the transmission is based on Transport Block (TB), each TB uses 1 bit to indicate its reception status when feeding back HARQ-ACK information, and retransmits the entire TB when reception fails (e.g., CRC check fails). If the transmission is based on Code Block Group (CBG), one TB consists of N CBGs (where N is greater than or equal to 1), each CBG represents its reception status with 1 bit when feeding back HARQ-ACK information, and when the reception fails, only the CBG whose transmission failed is retransmitted without retransmitting the entire TB. Since the UE generates one bit of acknowledgement information for each CBG, i.e., the TB generates N bits of feedback information.

5) The HARQ-ACK codebook size is used to indicate the size of the HARQ information, and specifically, may indicate the number of bits of the feedback information in the HARQ. In one implementation, the HARQ-ACK codebook may be a semi-static codebook, as shown in FIG. 5. The semi-static codebook (also called TYPE1 codebook) is determined according to semi-static configuration parameters (e.g., uplink and downlink formats, K1 set, and Time Domain Resource Allocation (TDRA) table, whether space division multiplexing is performed, whether CBG-based transmission is performed, and the number of configured/activated carriers) of Radio Resource Control (RRC) signaling, and the size of the codebook size does not change dynamically with the actual data scheduling condition. In another implementation, the HARQ-ACK codebook may be a dynamic codebook (also called TYPE2 codebook), as shown in fig. 6, in addition to parameters such as space division multiplexing configured by the base station, CBG transmission based, and the number of configured/activated carriers, the dynamic codebook is determined according to count DAI (also called C-DAI) and total DAI (also called T-DAI) Information in Downlink Control Information (DCI), and the size of the codebook size may change dynamically with the actual data scheduling situation. The embodiment of the present application further provides a method for generating a HARQ-ACK codebook, where the codebook is determined according to HARQ configuration and the number of HARQ processes supported or used by the UE, and the size of the codebook may be dynamically changed along with the number of HARQ processes actually configured by the UE, or the number of HARQ processes supported by the UE, or due to the UE switching between different bandwidth parts (BWPs). A semi-static codebook generation method (hereinafter referred to as a first generation method), a dynamic codebook generation method (hereinafter referred to as a second generation method), a method for generating HARQ _ ACK according to a HARQ process (hereinafter referred to as a third generation method), and an information transmission method and an information processing method implemented by a combination of the three methods will be described in detail in the embodiments of the present application. For convenience of description, in all embodiments of the present application, the codebook size of HARQ-ACK refers to the bit length of feedback information in HARQ-ACK.

6) HARQ process (HARQ process), in one HARQ process, after the base station schedules a data transmission, it must wait for the UE to send a HARQ-ACK message to the base station, and then can schedule the next data transmission. The multiple HARQ processes refer to multiple concurrent HARQ processes, and when the base station uses multiple HARQ processes, no feedback is received for data transmission in one HARQ process, or another HARQ process may be used to schedule data transmission. For convenience of description, in all embodiments of the present application, the reference to "HARQ process" and "number of HARQ processes" collectively represents the number of HARQ processes supported or configured by the UE. In addition, if 2 data blocks, for example, 2 TBs, are transmitted simultaneously in a space division multiplexing manner, the two TBs may belong to the same HARQ process or belong to different HARQ processes, which is not specifically limited in this embodiment of the present application.

7) Downlink control information DCI including downlink data scheduling information to indicate a time-frequency resource location where the UE may receive and demodulate downlink data and configuration parameters, where the configuration parameters may be, for example: modulation and Coding Scheme (MCS), redundancy Version (RV), specific values of K1, and specific rows of the TDRA table. And the base station sends corresponding downlink data according to the configuration parameters indicated by the DCI at the time-frequency resource position indicated by the DCI, so that the UE receives the downlink data according to the corresponding parameters at the corresponding position. Wherein, the time interval between the Physical Downlink Shared Channel (PDSCH) carrying the Downlink data and the HARQ-ACK feedback information of the Downlink data is represented by a parameter K1, and the unit is a time slot. Specifically, the base station configures a K1 value set, for example, K1= {1,2,3} for the UE through RRC signaling, and indicates, through DCI, that the specific K1 value is one of the set {1,2,3} for the UE. The base station also configures a TDRA table for the UE through RRC signaling, each row includes a sequence number, a K0 value, a starting symbol and symbol length SLIV in one slot, and a mapping type, and indicates a row index (i.e., a sequence number) in the TDRA table for the UE through DCI.

8) Bandwidth part (BWP). In a New Radio (NR) system, since a system bandwidth (e.g., a bandwidth of one Carrier Component (CC)) may reach 200MHz or 400MHz, when a UE does not support such a large bandwidth or it is desired to reduce power consumption of the UE, a base station may configure a BWP for the UE, e.g., a BWP having a bandwidth of 20MHz, over which the UE may communicate with the base station. BWPs can be divided into Downlink BWPs (DL BWPs) and Uplink BWPs (UL BWPs), where a base station may configure multiple DL BWPs and multiple UL BWPs for a UE in a cell, and activate one DL BWP and one UL BWP, and the UE receives Downlink signals sent by a base station on the activated DL BWPs, including but not limited to Downlink control signaling, downlink data, channel State Information-Reference Signal (CSI-RS), etc.; the UE transmits an uplink Signal on the activated UL BWP, including but not limited to uplink control signaling, uplink data, scheduling Request (SR), sounding Reference Signal (SRs), channel State Information-Reference Signal (CSI), channel Quality Indicator (CQI) feedback, and the like. When the base station communicates with the UE on the activated DL BWP and UL BWP, the base station may activate (activate) another DL BWP (or UL BWP) while deactivating (deactivate) the current DL BWP (or current UL BWP), causing the UE to switch (switch) to receive or transmit data on the new activated BWP. For example, if the UE receives DCI instructing to switch to a second BWP on a first BWP, the UE switches from the first BWP to the second BWP.

9) Plural, as used herein, refers to two or more, and the like.

10 "and/or" describe an association relationship of associated objects, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In addition, it should be understood that the terms "first," "second," and the like, in the description of the present application, are used for distinguishing between descriptions and are not intended to indicate or imply relative importance, nor order to indicate or imply sequence limitations or that "first" and "second" are of different types and, in some embodiments of the present application, "first" and "second" may also be considered to refer to the same indicator.

Fig. 3 illustrates a communication system 300 according to an embodiment of the present application, where the communication system 300 is mainly used in a wireless communication scenario and may include a network device 301 and a User Equipment (UE) 302. The network device 301 is, for example, a base station, and the UE 302 is a device accessing a network through the base station 301.

The base station 301 is responsible for providing radio access related services to the UE 302, and implements radio physical layer functions, resource scheduling and radio resource management, quality of Service (QoS) management, radio access control, and mobility management functions.

In this embodiment, the base station 301 may transmit data to the UE 302 in units of slots (slots). As shown in fig. 4, the base station 301 sends data to the UE in the time slot T0, and specifically includes two parts: a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH), wherein the PDCCH may carry Downlink Control Information (DCI), and the PDSCH may carry Downlink data.

In the embodiment of the present application, when the UE 302 and the base station 301 communicate, a Hybrid Automatic Repeat Request (HARQ) technology may be adopted. The HARQ technology is a technology formed by combining Forward Error Correction (FEC) coding and automatic repeat request (ARQ), and has the main principle that: the sending end adds redundant information through FEC, so that the receiving end can correct a part of errors, and the sending end is requested to retransmit the errors which can not be corrected by the receiving end.

In the embodiment of the present application, the working process may specifically be: in time slot T0, base station 301 sends a downlink packet to UE 302. After receiving the downlink data packet, the UE 302 may check whether the received data packet is erroneous using a check code (e.g., a CRC check code). If the check is error-free, positive feedback information (e.g., ACK) is sent to the base station 301, for example, in the time slot T1, and the base station 301 continues to send the next data packet after receiving the positive feedback information. If the check is in error, the UE 302 sends a negative feedback message (e.g., NACK) to the base station 301 in time slot T1, and the base station 301 retransmits the data packet. In the embodiment of the present application, the positive feedback information, the negative feedback information, ACK and NACK, etc. may be collectively referred to as hybrid automatic repeat request determination information HARQ-ACK.

In this embodiment, the base station 301 may configure or dynamically indicate the uplink/downlink timeslot ratio of the timeslot in the whole wireless system frame in a semi-static manner, or indicate the uplink/downlink timeslot ratio, so that a situation may occur in which feedback information of downlink data of multiple timeslots is fed back in the same timeslot. Wherein the feedback information of the plurality of time slots constitutes a codebook (codebook) of feedback information: a HARQ-ACK codebook. At this time, for the design of the HARQ-ACK codebook, the bit length of the HARQ-ACK corresponding to the plurality of slots and the position/order of the HARQ-ACK corresponding to the plurality of slots in the codebook need to be considered.

Referring to fig. 5 and 6, fig. 5 and 6 respectively show a schematic diagram and a flowchart of a first generation manner and a second generation manner of a HARQ-ACK codebook. The first generation method is the semi-static codebook generation method, and the second generation method is the dynamic codebook generation method.

The manner in which the codebook is generated by the semi-static HARQ-ACK technique is related to some parameters, for example, parameters configured semi-statically through Radio Resource Control (RRC) signaling: uplink and downlink formats, K1 set, time Domain Resource Allocation (TDRA) table, etc. Based on these relevant parameters, the length of the HARQ codebook generated according to the semi-static HARQ-ACK technique is determined.

Wherein the unit of the parameter K1 is a time slot, which represents a time interval between the PDSCH and the corresponding HARQ-ACK. The K1 set configured for the UE through RRC signaling includes possible values of K1 in each scheduling, and in a specific scheduling, the UE is indicated to use a specific value of K1 in the set through DCI. The TDRA table at least comprises a sequence number column and an SLIV column, wherein the SLIV indicates a starting symbol and a symbol length in a time slot, the TDRA table configured for the UE through RRC signaling comprises possible values of the starting symbol and the symbol length in the time slot during each scheduling, and in a specific scheduling, the UE is indicated to use a specific row in the TDRA table through DCI, namely, the specific values of the starting symbol and the symbol length in the time slot are included.

When the UE determines the semi-static HARQ-ACK codebook, for example, HARQ-ACK information transmitted by the UE in slot n, is for each possible K1 value in the K1 set, that is, at each slot n-K1, a candidate position (PDSCH candidate) of the PDSCH is analyzed, and whether PDSCH transmission is possible and how many PDSCH transmissions are possible are determined, so as to determine the bit length of the final feedback.

In a specific embodiment, the base station 301 configures a set of K1 values, for example, K1= {1,2,3}, for the UE 302, and when the UE sends HARQ-ACK information in the slot n, it checks how many bits need to be fed back in the slot n-1, the slot n-2, and the slot n-3, respectively.

Referring to fig. 5A, there are 6 rows in the TDRA table configured for the UE, which are denoted by sequence numbers 0 to 5, and the symbol start position and the symbol length SLIV of each row in one slot are shown in the figure. That is, in time slot n-K1, the UE has 6 possible PDSCH locations as shown in the figure according to the configuration given to the UE by the base station. However, according to the actual uplink and downlink format, several symbols at the end of the slot are configured as uplink, so the possible positions of PDSCH corresponding to sequence

numbers

4 and 5 cannot be used in this embodiment, and the possible positions of PDSCH corresponding to sequence numbers 0 to 3 are valid.

Further, after determining that the possible positions of the PDSCH without uplink and downlink collision are sequence number 0 to sequence number 3, it is further compared whether the positions overlap. As shown in the figure, after the time slot is divided by the dotted lines L1 and L2, it can be seen that there are at most two possible non-overlapping positions of the PDSCH from the sequence number 0 to the sequence number 3, and the two possible non-overlapping positions are candidate positions of the PDSCH. In this slot, a 2-bit HARQ-ACK is generated.

If the uplink and downlink formats in the time slot n-1, the time slot n-2 and the time slot n-3 are the same, the total feedback information to be sent in the time slot n is 6 bits, that is, the codebook size of the HARQ-ACK is 6 bits. The UE generates a feedback bit according to the actual scheduled condition, which is 1 if it is ACK, and 0 if it is NACK or not scheduled. For example, if the UE is scheduled with 1 data block in the time slot n-1, 2 data blocks in the time slot n-2, 1 data block in the time slot n-3, and all the data blocks are transmitted correctly, the feedback information may be represented by 10 11, which is the HARQ-ACK codebook for the downlink data of the three time slots sent by the UE. If the first of the two data blocks in time slot n-2 is transmitted incorrectly, the second is transmitted correctly, and the other data blocks are transmitted correctly, the feedback information can be represented by 10 01 10, which is the HARQ-ACK codebook sent by the UE for the downlink data of the three time slots.

When the UE is configured with Carrier Aggregation (CA), feedback information on multiple Carrier elements (CCs) may be fed back on the same Carrier element. At this time, the feedback information on each carrier unit may be generated first, and then the feedback information may be concatenated to generate the final HARQ-ACK codebook.

Fig. 5B shows a method flowchart of the first generation method a, comprising the following steps:

in step 502, the UE determines non-overlapping PDSCH candidate locations according to the TDRA table and the uplink and downlink formats. The TDRA table and the uplink and downlink formats are configured to the UE by the base station, and specifically, the base station configures the parameters to the UE semi-statically through RRC signaling.

In step 504, the UE generates a first HARQ-ACK, i.e. a semi-static HARQ-ACK, according to the K1 set and the PDSCH candidate locations. The K1 set is a parameter which is semi-statically configured to the UE by the base station through RRC signaling, and the codebook size of the first HARQ-ACK can be determined according to the K1 set and the PDSCH candidate position.

Please refer to fig. 6A and 6B. The manner in which the codebook is generated by the dynamic HARQ-ACK technique is related to a Data Allocation Indication (DAI) field included in a dynamic indication received by the UE.

Specifically, when the dynamic HARQ-ACK technique is adopted, the DCI sent by the base station to the UE includes the DAI, which is used to indicate the number of scheduled data blocks and to indicate the respective feedback information positions. And when the UE needs to send the feedback information, feeding back the feedback information with the corresponding length according to the indication of the DAI.

Fig. 6A shows that the UE is configured with carrier aggregation CA, in which the carrier cells CC are arranged in sequence according to the sequence numbers, and are shown as CC1, CC2 and CC3 in the figure. In order to count data on different carrier cells CC, the DAI is further divided into two parameters, a count DAI (also called C-DAI) and a total DAI (also called T-DAI), which may be denoted as { C-DAI, T-DAI }. The counting DAI represents how many time slots the UE has downlink transmission until the current carrier of the current time slot in the current feedback window, that is, the counting DAI is numbered according to the transmission sequence of the current data block. The total DAI represents how many downlink transmissions the UE has on all carriers up to the current timeslot in the current feedback window, i.e. the total DAI is the sum of the data blocks transmitted in the current timeslot and the previous timeslot.

In the embodiment shown in fig. 6A, on 3 carrier cells CC1, CC2, and CC3 configured by the UE, a feedback window with a length of 3 slots is schematically included: time slot T0, time slot T1, and time slot T2, and the 3 carrier units transmit feedback information corresponding to all downlink data of the UE together in the illustrated 3 time slots. It can be seen that the UE is actually scheduled with 7 downlink data transmissions. In the time slot T0, there are 3 downlink data transmissions, so in the first time slot, the { C-DAI, T-DAI } of the downlink data block according to the sequence number of the carrier unit is CC1: {1,3}, CC2: {2,3} and CC3: {3,3}. In the time slot T1, 2 downlink data transmissions are scheduled, and in addition to 3 downlink data transmissions in the time slot T0, there are 5 downlink data transmissions in all carrier units in the current feedback window, so that the { C-DAI, T-DAI } of the downlink data block in the time slot T1 according to the sequence number of the carrier unit is CC2: {4,5}, CC3: {5,5}. Similarly, after 2 downlink data transmissions are scheduled in the time slot T2, the { C-DAI, T-DAI } of the downlink data block according to the sequence number of the carrier unit is CC1: {6,7}, CC3: {7,7}. Therefore, when the UE generates the dynamic HARQ-ACK codebook, 7 bits needing to be fed back are determined according to the value of the total DAI, and the position of the feedback information of each data block corresponding to the dynamic HARQ-ACK codebook is determined according to the value of the counting DAI.

Fig. 6B shows a method flowchart of the second generation approach B, comprising the following steps:

in step 602, the UE receives DCI including a DAI field from a base station, wherein the DAI indicates a scheduled number of data blocks. In the embodiment shown in fig. 6A, DAI may be further denoted as a combination of two parameters C-DAI, T-DAI, indicating the order index of the currently scheduled data block and the total number of data blocks scheduled on multiple carrier units, respectively.

In step 604, the UE generates a second HARQ-ACK according to the indication of the DAI. Specifically, the codebook size of the second HARQ-ACK is indicated by the total DAI, and the position of the feedback information in the second HARQ-ACK is indicated by the counting DAI.

When the UE generates the first HARQ-ACK according to the first generation method a or generates the second HARQ-ACK according to the second generation method B, the codebook size of the first or second HARQ-ACK may be further determined by the following parameters configured to the UE through RRC signaling, specifically including but not limited to the following parameters:

a) PDSCH-CodeBlockgroupTransmission for indicating that the UE is configured to transmit based on CBG, each Transport Block (TB) received by the UE is composed of a plurality of Code Block Groups (CBG), for example, G Code Block groups, wherein G ≧ 1, and in HARQ-ACK generated by the UE, each CBG uses 1 bit to represent its reception status;

b) A harq-ACK-SpatialBundlingPUCCH for feeding back only feedback information of 1 TB after indicating that feedback bits of 2 TBs scheduled at the time of space division multiplexing are anded;

c) maxnrofcodewordsscheduled bydci to indicate that the UE is configured with one DCI to schedule 2 TBs.

Fig. 7 is a flowchart of a third generation method C provided in the embodiment of the present application, including the following steps:

in step 702, the number of HARQ processes supported or configured by the UE is determined. The number of HARQ processes supported by the UE may be the number of HARQ processes reported when the UE reports the capability to the base station, or the number of HARQ processes dynamically indicated or semi-statically configured by the base station for the UE.

In the NR system, the UE may support up to 16 HARQ processes, and the number of HARQ processes actually used is limited by the capability of the UE, for example, a reduced capability UE (REDCAP UE) may support a smaller number of HARQ processes, for example, 2 to 4 HARQ processes. Secondly, the number of HARQ processes actually used by the UE is also changed by the dynamic indication or semi-static configuration of the base station 301, for example, even for a UE with a strong capability of supporting 16 HARQ processes at most, the base station may configure a smaller number of HARQ processes according to the actual network situation, which may be, for example, 2 to 4. Therefore, when the UE generates the HARQ-ACK according to the configured HARQ process number, the codebook size of the HARQ-ACK can be optimized, thereby improving the uplink transmission efficiency of the UE.

In step 704, the UE generates a third HARQ-ACK according to the number of HARQ processes (e.g., the number of HARQ processes configured by the UE) and the HARQ process number. In a specific implementation, the third HARQ-ACK may be generated according to the sequence of the HARQ process numbers, that is, the positions of the feedback information in the codebook of the third HARQ-ACK are sequentially arranged according to the sequence of their corresponding HARQ process numbers.

In a specific embodiment, the number of HARQ processes supported or configured by the UE is P, wherein P ≧ 1.

When the UE generates the third HARQ-ACK according to the third generation method C, the codebook size of the third HARQ-ACK may be further determined by the following parameters configured to the UE by RRC signaling, specifically including but not limited to the following parameters:

c) maxnrofcopowerscheduledbydci for indicating that the UE is configured with one DCI scheduling 2 TBs.

Will be referred to as O below _ACK,process Indicating the codebook size of the third HARQ-ACK generated in the third generation scheme C, then,

a) When the base station does not configure any of the above parameters to the UE, OACK, process = P;

b) When the PDSCH-CodeBlockGroupTransmission parameter is configured (other parameters are not configured), O _ACK,process ＝G*P；

c) When maxNrofCodeWordsSchedulByDCI parameter is configured (other parameters are not configured), O _ACK,process ＝2*P

d) When the maxNrofCodeWordsSchedulByDCI parameter and the harq-ACK-spatialBundlingPUCCH parameter are configured (other parameters are not configured), O _ACK,process ＝P；

e) When the PDSCH-CodeBlockGroupTranssmision parameter and the maxNrofCodeWordsSchedulByDCI parameter are configured (other parameters are not configured), O _ACK,process ＝2*G*P。

It should be appreciated that the codebook size O for the third HARQ-ACK described above _ACK,process The calculation formula of (c) is merely exemplary, and in practical applications, the codebook size O is _ACK,process It is also possible to have different calculation formulas under different parameter configuration combinations, and the parameters that can affect the codebook calculation formula are not limited to the above listed cases.

Fig. 8A is a flowchart of an information sending method according to an embodiment of the present application.

In step 802, the first device generates a HARQ-ACK, wherein a codebook size of the HARQ-ACK is related to a number of HARQ processes of the first device.

In one embodiment of the present application, the first device may be, for example, UE 302 and the second device may be, for example, base station 301. The first device may determine whether to generate HARQ-ACK in the first generation method a or the third generation method C according to an indication parameter sent by the second device, where the indication parameter is related to the number of HARQ processes of the first device, and correspondingly, the generated HARQ-ACK is also related to the number of HARQ processes. The indication information sent by the second device to the first device may indicate a manner in which the first device generates HARQ-ACK, so that the codebook size of the HARQ-ACK sent by the first device is related to the number of HARQ processes that the first device can support or be configured, thereby optimizing the codebook size of the HARQ-ACK sent by the first device, for example, reducing the number of feedback bits of the HARQ-ACK sent by the first device, thereby improving uplink transmission efficiency thereof, and further reducing occupation of network resources.

In another embodiment of the application, the first device compares the codebook size of the first HARQ-ACK associated with the first generation scheme a with the codebook size of the first HARQ-ACK associated with a third generation scheme C associated with the number of HARQ processes to determine the HARQ-ACKs generated by the first device.

In step 804, the first device transmits the HARQ-ACK to the second device.

Fig. 8B is a flowchart of an information processing method according to an embodiment of the present application.

In step 812, the second device receives HARQ-ACK of the first device with a codebook size related to the number of HARQ processes of the first device.

Specifically, in one embodiment of the present application, the first device may be, for example, UE 302, and the second device may be, for example, base station 301. The second device sends indication information to the first device to indicate the manner in which the first device generates the HARQ-ACK, for example, the indication information may indicate one of the first generation manner a, the second generation manner B, and the third generation manner C, or a combination of multiple generation manners to generate the HARQ-ACK. The indication information sent by the second device to the first device may indicate a mode of generating the HARQ-ACK by the first device, so as to optimize a codebook size of the HARQ-ACK sent by the first device, thereby reducing occupation of network resources.

In step 814, the second device processes the HARQ-ACK according to the codebook size of the HARQ-ACK. Specifically, the second device retransmits some data blocks according to the HARQ-ACK of the first device.

Fig. 9 to fig. 12 are flowcharts of an information sending method according to an embodiment of the present application.

In the information sending method 900A shown in fig. 9A, a first device, such as a UE, receives indication information of a second device, such as a base station, and determines a HARQ-ACK generation manner according to the indication information.

In step 902, the UE receives indication information of a base station. The indication information may be included in radio resource control RRC information, medium access control layer control element MAC CE information, or downlink control information DCI transmitted by the base station. In an embodiment of the present application, the system information block SIB sent by the base station to the UE includes the indication information, and the SIB belongs to one of RRC information.

In step 904, the UE determines whether the indication information indicates that it generates HARQ-ACK in the third generation mode C. If the judgment result is yes, the flow step of a third generation method C shown in FIG. 7 is entered; if the result of the judgment is negative, the flow steps of the first generation mode A shown in FIG. 5B or the second generation mode B shown in FIG. 6B are entered. The codebook size of the HARQ-ACK sent by the UE can be optimized by the mode that the indication information indicates the UE to generate the HARQ-ACK.

In step 910, the UE transmits HARQ-ACK generated in the first, second, or third generation manner to the base station.

In another embodiment of the present application, the information sending method 900 may further include the following steps:

in step 906, the first device may determine a HARQ-ACK for the first device according to the third HARQ-ACK generated by the third generation scheme C. It is to be understood that step 906 may be omitted and the first device may determine that the generated third HARQ-ACK is the HARQ-ACK of the first device in the flow steps of the third generation scheme C.

In step 908, the first device may determine a HARQ-ACK for the first device based on the first HARQ-ACK or the second HARQ-ACK generated by the first generation scheme a or the second generation scheme B. It should be understood that step 908 may be omitted, and the first device may determine that the first HARQ-ACK or the second HARQ-ACK generated by the first device is the HARQ-ACK of the first device in the flow steps of the first generation manner a or the second generation manner B.

In a specific embodiment, step 904 may further include: whether the indication information indicates that the HARQ-ACK of the first device is generated by the first generation method a and/or whether the indication information indicates that the HARQ-ACK of the first device is generated by the second generation method B, if the result of the determination is yes, the flow step of the first generation method a or the second generation method B is entered, and if the result of the determination is no, the flow step of the third generation method C shown in fig. 7 is entered.

In another specific embodiment, the indication information received in step 902 includes a first threshold, and in step 904, the UE further compares the number of HARQ processes with the first threshold. When the number of the HARQ processes is smaller than the first threshold value, indicating that the indication information indicates that the indication information generates HARQ-ACK through a third generation mode C; when the number of the HARQ processes is larger than or equal to the first threshold, the indication information indicates that the HARQ processes generate HARQ-ACK according to the first generation mode A or the second generation mode B. When the number of HARQ processes configured by the base station for the UE is smaller, for example, for network reasons, the base station configures the number of HARQ processes smaller than the first threshold for the UE, which means that the number of parallel HARQ processes used by the UE is smaller, so that the UE is instructed to generate HARQ-ACK by the third generation method C to optimize the generated HARQ-ACK codebook size, and uplink transmission resources are saved.

In another specific embodiment, the indication information received by the UE from the base station is used to indicate that, when the UE receives downlink data on the target bandwidth portion BWP, the UE determines a manner in which the UE generates HARQ-ACK, where the HARQ-ACK generated by the UE is HARQ-ACK of the downlink data received on the target BWP. For example, the configuration information (e.g., RRC information) sent by the base station to the UE may configure the UE to generate HARQ-ACK in the first generation manner a on the target BWP1 and generate HARQ-ACK in the third generation manner C on the target BWP2. When the UE receives the first downlink data on BWP1, the UE will generate a first HARQ-ACK of the first downlink data in a first generation mode A, and when the UE is configured or instructed to jump from BWP1 to BWP2 to receive third downlink data, the UE will generate a third HARQ-ACK of the third downlink data in a third generation mode C. For various reasons, such as network reasons, the base station may instruct the UE to hop over different BWPs, such as the target BWP1 and target BWP2 described above, where target BWP1 is larger than target BWP2. When the UE receives data on the smaller target BWP1, the network resources available for the UE are relatively less, so the UE is instructed to generate HARQ-ACK by the third generation mode C to optimize the codebook size of the HARQ-ACK and save the resource occupation each time the UE is switched to the target BWP 1.

The information transmission method 900B shown in fig. 9B is similar to the information transmission method 900A, wherein the same or similar steps are denoted by the same or similar reference numerals.

Unlike the information transmission method 900A, in the method 900B, through steps 9041 to 9043, the ue can determine whether the indication information indicates that the indication information is generated by the first generation method a, the second generation method B, or the third generation method C, and then enter the flow steps of the first generation method a, the second generation method B, or the third generation method C, respectively, according to the determination result.

Similarly, the method 900B may further include

steps

9081, 9082, 906 to determine the HARQ-ACK of the first device according to the first, second, or third HARQ-ACK generated by the first generation manner a, the second generation manner B, or the third generation manner C, respectively. It should be understood that

steps

9081, 9082, 906 may be omitted in method 900B, and the first device may determine that the first HARQ-ACK, the second HARQ-ACK, or the third HARQ-ACK it generates in the flow steps of the first generation scheme a, the second generation scheme B, or the third generation scheme C is the HARQ-ACK of the first device.

It should be understood that the indication information sent by the base station may instruct the UE to generate HARQ-ACK in different generation manners according to different situations, so that the flexibility of generating HARQ-ACK is improved to optimize the codebook size of HARQ-ACK.

In the embodiment shown in fig. 10, another information sending method 1000 of the present application is shown, which specifically includes the following steps:

in step 1002, the UE determines a first codebook size for HARQ-ACK, wherein the first codebook size is related to a first generation method a, i.e. related to a semi-static codebook generation method. For example, the first codebook size may be a codebook size obtained after HARQ-ACK is generated in the first generation manner a, or the first codebook size may be obtained from the PDSCH candidate location and the first calculation result associated with the K1 set.

In step 1004, the UE determines a second codebook size for HARQ-ACK, wherein the second codebook size is related to a third generation scheme C, i.e. a dynamic codebook generation scheme. For example, the second codebook size may be a codebook size obtained after the HARQ-ACK is generated in the third generation method C, or the second codebook size may be obtained as a result of a second calculation associated with the number of HARQ processes.

In step 1006, the UE compares the first codebook size and the second codebook size, and determines HARQ-ACK of the UE according to a result of the comparison.

In one embodiment of the present application, when the first codebook size is smaller than or equal to the second codebook size, the HARQ-ACK finally determined by the UE is generated by the first generation method a and has the first codebook size; and when the first codebook size is larger than the second codebook size, the HARQ-ACK finally determined by the UE is generated by the third generation mode C and has the second codebook size. By comparing the sizes of the codebooks generated by different codebook generation modes, the HARQ-ACK with the smaller codebook size is determined for the UE, so that the uplink transmission resources can be saved for the UE and the uplink transmission efficiency can be improved while the feedback information transmitted by the HARQ codebook is not changed.

It should be appreciated that the generation of the HARQ-ACK in the first generation manner a may be performed in step 1002, and thus the first codebook size of the HARQ-ACK may be determined, or may be performed again according to the comparison result in step 1006; likewise, the generation of HARQ-ACK in the third generation mode C may be performed in step 1004 or in a subsequent step 1006, which should not be taken as a limitation of the present application.

In step 1010, the UE transmits the finally determined HARQ-ACK to the base station.

For example, in 1002, the UE generates HARQ-ACK according to a first generation scheme a and determines a first codebook size, in 1004, the UE determines a second codebook size according to a second calculation result associated with the number of HARQ processes, in 1006, the UE compares the first and second codebook sizes, and when the first codebook size is larger than the second codebook size, the UE further generates HARQ-ACK according to a third generation scheme C and determines that it is HARQ-ACK for the UE, and in 1010, the UE transmits the HARQ-ACK generated in the third generation scheme C to the base station.

As another example, when carrier aggregation CA is configured, a UE has a plurality of activated cells (cells), wherein a Cell refers to an area logically serving a user. Each Carrier Cell CC in the Carrier aggregation CA corresponds to one Cell, such as a Primary Cell (Primary Cell) using a Primary Carrier Cell (Primary Component Carrier) and a Secondary Cell (Secondary Cell) using other Carrier cells. When the information sending method 1000 is further described by taking a cell as an example, since the UE has a plurality of activated cells, in 1002, the UE determines a first codebook size associated with a first generation formula a, the first codebook size is obtained by a PDSCH candidate location and a first calculation result associated with a K1 set, and the first codebook size is obtained by traversing the plurality of cells to obtain codebook sizes of the plurality of cells associated with the first generation formula a and concatenating, that is, the codebook size of each cell is associated with the first generation formula a, and the first codebook size is a sum of the codebook sizes of the plurality of cells. In 1004, the UE determines a second codebook size associated with a third generation scheme C, the second codebook size resulting from a second calculation result associated with the number of HARQ processes, and the second codebook size being obtained by traversing the plurality of cells to obtain codebook sizes of the plurality of cells associated with the third generation scheme C and concatenating, i.e., the codebook size of each cell is associated with the third generation scheme C, the second codebook size being a sum of the codebook sizes of the plurality of cells. In 1006, the UE compares the first codebook size and the second codebook size obtained through traversing multiple cells to finally determine HARQ-ACK of the UE, and transmits the determined HARQ-ACK to the base station in 1010. Wherein, when the first codebook size is smaller than or equal to the second codebook size, the finally determined HARQ-ACK should be generated by traversing the plurality of cells in the first generation manner a and have the first codebook size, and when the first codebook size is larger than the second codebook size, the finally determined HARQ-ACK should be generated by traversing the plurality of cells in the third generation manner C and have the second codebook size.

It should be understood that, correspondingly in the above embodiments, the HARQ-ACKs generated by traversing multiple cells in the first generation manner a may be performed in

step

1002 or 1006, and the HARQ-ACKs generated by traversing multiple cells in the third generation manner C may be performed in

step

1004 or 1006, which is not described herein again.

Fig. 11 shows another information sending method 1100 of the present application, where the method 1100 is another specific implementation of the method 1000. In the information transmitting method 1100, the UE first generates a first HARQ-ACK in a first generation manner a, i.e., a semi-static codebook generation manner, and then generates a third HARQ-ACK in a third generation manner C, i.e., a dynamic codebook generation manner.

In step 1102, the UE compares the codebook size of the first HARQ-ACK with the codebook size of the second HARQ-ACK, for example, the UE may determine whether the codebook size of the first HARQ-ACK is larger than the codebook size of the third HARQ-ACK in step 1102, if the determination result is yes, step 1106 is entered, and if the determination result is no, step 1108 is entered.

In step 1106, the HARQ-ACK of the UE is determined to be the third HARQ-ACK with the smaller codebook size because the codebook size of the first HARQ-ACK is larger than the third HARQ-ACK.

In step 1108, the HARQ-ACK of the UE is determined to be the first HARQ-ACK generated according to the semi-static codebook generation method because the codebook size of the first HARQ-ACK is not larger than the third HARQ-ACK.

In step 1110, the UE transmits the finally determined HARQ-ACK to the base station.

Similarly, when the UE has a plurality of activated cells, the step of the UE first generating the first HARQ-ACK in the first generation manner a includes traversing the plurality of cells in the first generation manner a to obtain the first HARQ-ACK concatenated with the plurality of cells; and the step of generating the third HARQ-ACK in the third generation C comprises traversing the plurality of cells in the third generation C to obtain the third HARQ-ACK for the concatenation of the plurality of cells. In 1102, the UE compares the codebook size of a first HARQ-ACK of the plurality of cell cascades with the codebook size of a third HARQ-ACK of the plurality of cell cascades and determines the HARQ-ACK of the UE as the third HARQ-ACK having a smaller codebook size in 1106 or determines the HARQ-ACK of the UE as the first HARQ-ACK in 1108.

Fig. 12 shows another information transmission method 1200 of the present application, where the information transmission method 1200 is applicable to a scenario in which a UE is configured with carrier aggregation CA. When carrier aggregation CA is used, there are a plurality of cells (cells), wherein a Cell refers to an area logically serving a user. Each Carrier Cell CC in the Carrier aggregation CA corresponds to one Cell, such as a Primary Cell (Primary Cell) using a Primary Carrier Cell (Primary Component Carrier) and a Secondary Cell (Secondary Cell) using other Carrier cells.

In the embodiment shown in fig. 12, the information transmission method 1200 is described by taking a cell as an example. A scenario in which the UE has multiple activated cells (activated with multiple cells), for example, the UE has N activated cells: a first cell, a second cell, … …, an nth cell. In the method 1200 shown in fig. 12B, the UE generates HARQ-ACKs corresponding to each cell in each cell, and then concatenates the generated N HARQ-ACKs corresponding to each cell in step 1212 to generate the finally determined HARQ-ACKs. In step 1214, the UE transmits the finally determined HARQ-ACK to the base station.

Wherein the UE generates and transmits the information in each cellThe cell-corresponding HARQ-ACK may refer to a step before 910 in the information transmission method 900A of fig. 9A, a step before 910 in the information transmission method 900B of fig. 9B, a step before 1010 in the information transmission method 1000 of fig. 10, or a step before 1110 in the information transmission method 1100 of fig. 11. Method D of generating HARQ-ACK corresponding to mth cell, taking as an example the steps preceding 1010 in information transmission method 1000 of fig. 10 _M As shown in FIG. 12A, D _M The method comprises the following steps:

in step 1202, a first codebook size of HARQ-ACK corresponding to the mth cell is determined, where the first codebook size is related to a first generation method a, that is, a semi-static codebook generation method.

In step 1204, a second codebook size of HARQ-ACK corresponding to the mth cell is determined, wherein the second codebook size is related to the third generation method C, that is, the dynamic codebook generation method.

In step 1206, the UE compares the first codebook size and the second codebook size. For example, the UE determines whether the first codebook size is larger than the second codebook size, if so, proceeds to step 1208, and if not, proceeds to step 1210.

In step 1208, if the first codebook size is larger than the second codebook size, the HARQ-ACK corresponding to the mth cell is generated in the first generation manner a and has the second codebook size.

In step 1210, if the first codebook size is smaller than or equal to the second codebook size, the HARQ-ACK corresponding to the mth cell is generated in the third generation method C and has the first codebook size.

Method D in generating HARQ-ACK corresponding to Mth cell _M In this embodiment, the generated HARQ-ACK of the mth cell is a HARQ-ACK with a smaller codebook size determined according to different codebook generation methods, and therefore, in the information sending method 1200, the final HARQ-ACK generated in cascade in step 1212 should have a minimized codebook size. Since HARQ-ACK of the UE has an optimized codebook size, the efficiency of uplink data transmission can be improvedAnd the resource utilization rate of the whole network is improved.

Fig. 13 shows that another embodiment of the present application provides a communication system 1300, where the communication system 1300 is mainly applied to a scenario of point-to-point (D2D), eD2D, vehicle-to-vehicle (V2V), vehicle-to-everything interconnection (V2X), and may include a UE 1301 and a UE 1302.

The UE 1301 and the UE 1302 may be two peer user nodes, and the two may communicate directly.

In the embodiment of the present application, the HARQ technology may be used for data transmission between the UE 1301 and the UE 1302, and for the HARQ technology, reference may be made to the description in the embodiment.

It should be noted that, the communication system 300 only schematically illustrates one base station 301 and one UE 302, the number of the base stations 301 and the UEs 302 is not limited in the present application, and the communication system 300 may be configured with any number of the base stations 301 and the UEs 302 according to the requirement. Similarly, the communication system 1300 also schematically shows one UE 1301 and one UE 1302, the number of the

UEs

1301 and 1302 is not limited in the present application, and the communication system 1300 may be configured with any number of the

UEs

1301 and 1302 according to the requirement.

Fig. 14 shows a schematic diagram of a possible structure of the base station involved in the above embodiment. The base station may be the base station 301 as shown in fig. 3, and may perform the information processing method shown in fig. 8B. As shown in fig. 14, the base station may include a transceiver 1401, a controller/processor 1402. The transceiver 1401 may be used to support transceiving information between a base station and the UE in the above-described embodiments, and to support radio communication between the UE and other UEs. The controller/processor 1402 can be configured to perform various functions for communicating with the UE or other network devices. In the uplink, uplink signals from the UE are received via the antenna, conditioned by the transceiver 1401, and further processed by the controller/processor 1402 to recover traffic data and signaling information transmitted by the UE. On the downlink, traffic data and signaling messages are processed by controller/processor 1402 and conditioned by transceiver 1401 to generate a downlink signal, which is transmitted via the antenna to the UE. The transceiver 1401 is further configured to receive a hybrid automatic repeat request information HARQ-ACK transmitted by the UE. The controller/processor 1402 may also be configured to perform the processes of fig. 8B and/or other processes for the techniques described herein, such as transmitting RRC/MAC CE/DCI containing indication information to indicate a manner in which the UE generates HARQ-ACK, or to indicate a manner in which the UE generates HARQ-ACK on different BWPs and processes the HARQ-ACK according to a codebook size of the HARQ-ACK transmitted by the UE, etc. The base station may also include a memory 1403 that may be used to store program codes and data for the base station. The base station may also include a communication unit 1404 to support the base station in communicating with other network entities.

It will be appreciated that fig. 14 only shows a simplified design of a base station. In practice, the base station may comprise any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the present invention are within the scope of the present invention.

Fig. 15 is a simplified schematic diagram illustrating a possible design structure of a UE according to the above embodiments, where the UE may be the UE 302 shown in fig. 3, or may be the UE 1301 or UE 1302 of fig. 13, and may execute the information sending methods shown in fig. 8A and fig. 9 to fig. 12. The UE may include a transceiver 151, a controller/processor 152, and may also include a memory 153 and a modem processor 154.

Transceiver 151 conditions (e.g., converts to analog, filters, amplifies, and frequency upconverts, etc.) the output samples and generates an uplink signal, which is transmitted via an antenna to the base station as described in the embodiments above. On the downlink, the antenna receives the downlink signal transmitted by the base station in the above embodiment. Transceiver 151 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the received signal from the antenna and provides input samples. In modem processor 154, an encoder 1541 receives traffic data and signaling messages to be sent on the uplink and processes (e.g., formats, encodes, and interleaves) the traffic data and signaling messages. Modulator 1542 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples. A demodulator 1544 processes (e.g., demodulates) the input samples and provides symbol estimates. The decoder 1543 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages for transmission to the UE. Encoder 1541, modulator 1542, demodulator 1544, and decoder 1543 may be implemented by a combined modem processor 154. These elements are processed in accordance with the radio access technology employed by the radio access network (e.g., the access technologies of LTE and other evolved systems).

The transceiver 151 is used to perform communication with a base station, such as transmitting hybrid automatic repeat request information to the base station. The memory 153 is used for storing program codes and data for the UE.

As shown in fig. 16, an information sending apparatus 16 is further disclosed in the embodiments of the present application, where the information sending apparatus 16 may be the UE 302 in fig. 3, or the UE 1301 or UE 1302 in fig. 13, and may execute the information sending methods shown in fig. 8A and fig. 9 to fig. 12. As shown in fig. 16, the information transmitting apparatus 16 includes: a processing unit 1601, configured to generate HARQ-ACK according to the information transmission method provided in the present application; a transceiving unit 1602, configured to transmit the HARQ-ACK to the second device, wherein the codebook size of the HARQ-ACK is related to the number of HARQ processes.

In an example of the present application, transceiver unit 1602 receives instruction information transmitted by the second device, for example, instruction information included in RRC/MAC CE/DCI, and instructs processing unit 1601 to generate HARQ-ACK according to one of first generation scheme a, second generation scheme B, and third generation scheme C, or instructs processing unit 1601 to generate HARQ-ACK according to the corresponding generation scheme described above according to the BWP where the UE is located.

In another example of the present application, the processing unit 1601 may determine a first codebook size and a second codebook size according to different HARQ-ACK generation manners, and determine sizes of the first and second codebook sizes, where the first codebook size is related to a first generation manner a (semi-static codebook generation manner), and the second codebook size is related to a third generation manner C (generation manner for generating a codebook according to the number of HARQ processes). When the first codebook size is determined to be smaller than or equal to the second codebook size, the HARQ-ACK generated by the processing unit 1601 is generated according to the first generation method a and has the first codebook size; when the first codebook size is determined to be larger than the second codebook size, the HARQ-ACK generated by the processing unit 1601 is generated according to the third generation method C and has the second codebook size.

As shown in fig. 17, the embodiment of the present application further discloses an information processing apparatus 17, which may be the base station 301 in fig. 3, the UE 1301 or the UE 1302 in fig. 13, and may execute the information processing method shown in fig. 8B. The apparatus 17 for processing information includes:

a transceiver unit 1701 configured to receive HARQ-ACK, which has a codebook size related to the number of HARQ processes of the first device, for hybrid automatic repeat request determination information of the first device;

a processing unit 1702, configured to process the HARQ-ACK according to the codebook size of the HARQ-ACK.

In an example of the present application, the transceiver 1701 transmits, to the first device, RRC/MAC CE/DCI including instruction information for instructing the first device to generate HARQ-ACK in the first generation scheme a, the second generation scheme B, or the third generation scheme C.

As shown in fig. 18, the present application further provides a communication system 18, where the communication system 18 may include a first device 1801 and a second device 1802, which may be the base station 301 and the UE 302 in fig. 3, or the UE 1301 and the UE 1302 in fig. 13, and for descriptions of the first device and the second device, refer to the above description.

The present application also provides a computer-readable storage medium characterized by comprising instructions that, when run on a communication device, cause the communication device to perform the method of transmitting a signal or the method of receiving a signal shown in the above-described embodiments.

The present application further provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory, so as to implement the method for sending a signal or the method for receiving a signal described in the foregoing embodiment.

The present application further provides an apparatus comprising a processor and a memory, wherein the memory stores a program or instructions, and the program or instructions when executed by the processor implement the method for transmitting signals or the method for receiving signals described in the above embodiments.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in user equipment. Of course, the processor and the storage medium may reside as discrete components in user equipment.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

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

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for transmitting information, the method comprising:

the method comprises the steps that a first device generates hybrid automatic repeat request determination information HARQ-ACK of the first device; and

the first device transmits HARQ-ACK of the first device to a second device,

wherein the codebook size of the HARQ-ACK of the first device is related to the number of hybrid automatic repeat request (HARQ) processes of the first device, and the number of the HARQ processes is the number of HARQ processes supported by the first device or the number of HARQ processes configured by the first device;

the generating of the HARQ-ACK of the first device comprises generating the HARQ-ACK of the first device in one of a first generation mode, a second generation mode and a third generation mode according to the indication information sent by the second device,

the first generation method generates HARQ-ACK of the first device according to a candidate position of a Physical Downlink Shared Channel (PDSCH) and a K1 set, where the K1 set includes possible values of K1 in each scheduling, the K1 is a time interval between the PDSCH carrying downlink data and HARQ-ACK feedback information of the downlink data, the second generation method generates HARQ-ACK of the first device according to a Data Allocation Indication (DAI) in Downlink Control Information (DCI), and the third generation method generates HARQ-ACK of the first device according to the number of HARQ processes.

2. The method of claim 1, wherein the indication information comprises a first threshold, and wherein generating the HARQ-ACK for the first device in one of the first generation manner, the second generation manner, and the third generation manner according to the indication information transmitted by the second device comprises:

generating HARQ-ACK of the first device in the third generation manner when the number of HARQ processes is less than the first threshold; and

and when the number of the HARQ processes is larger than or equal to the first threshold, generating HARQ-ACK of the first equipment in the first generation mode or the second generation mode.

3. The method according to claim 1, wherein the indication information is used to generate HARQ-ACK of the first device in one of the first generation manner, the second generation manner, and the third generation manner when determining that the first device receives downlink data on a target bandwidth portion BWP, where HARQ-ACK of the first device is HARQ-ACK of the downlink data on the target BWP.

4. The method according to any one of claims 1-3, further comprising:

and receiving Radio Resource Control (RRC) information or media access control (MAC CE) information or Downlink Control Information (DCI) from the second device, wherein the RRC information or the MAC CE information comprises the indication information.

5. The method of claim 4, further comprising:

the RRC contains a System information Block, SIB, which includes the indication information.

6. The method as claimed in any of claims 1-3, wherein the third generation method further determines the position of the feedback bit corresponding to each HARQ process in the HARQ-ACK of the first device according to the sequence number of the HARQ process.

7. The method of claim 1, wherein the first device has multiple activated cells, and wherein generating the HARQ-ACK for the first device comprises:

generating a plurality of cell-corresponding HARQ-ACKs for the plurality of activated cells, concatenating the plurality of cell-corresponding HARQ-ACKs to generate a HARQ-ACK for the first device,

wherein generating each HARQ-ACK corresponding to a cell comprises:

determining a first codebook size of the HARQ-ACK corresponding to the cell, the first codebook size being related to a first generation method;

determining a second codebook size of the HARQ-ACK corresponding to the cell, wherein the second codebook size is related to a third generation mode;

when the first codebook size is less than or equal to the second codebook size, the HARQ-ACK corresponding to the cell is generated in a first generation manner and has the first codebook size;

when the first codebook size is larger than the second codebook size, the HARQ-ACK corresponding to the cell is generated in a third generation manner and has the second codebook size.

8. A method for transmitting information, the method comprising:

the first device transmits HARQ-ACK of the first device to a second device,

generating the HARQ-ACK of the first device comprises:

determining a first codebook size for HARQ-ACK of the first device, the first codebook size being related to a first generation approach;

determining a second codebook size for HARQ-ACK of the first device, the second codebook size being related to a third generation approach;

when the first codebook size is smaller than or equal to the second codebook size, the HARQ-ACK of the first device is generated in the first generation manner and has the first codebook size, where the first generation manner generates HARQ-ACK of the first device according to a candidate position of a Physical Downlink Shared Channel (PDSCH) and a K1 set, the K1 set includes possible values of K1 at each scheduling, and K1 is a time interval between the PDSCH carrying downlink data and HARQ-ACK feedback information of the downlink data;

when the first codebook size is larger than the second codebook size, the HARQ-ACK of the first device is generated in the third generation manner and has the second codebook size, wherein the third generation manner generates the HARQ-ACK of the first device according to the number of the HARQ processes.

9. The method of claim 8, wherein the first device has a plurality of activated cells, wherein,

the HARQ-ACK of the first device generated in the first generation manner is a HARQ-ACK of the first device having the first codebook size generated in the first generation manner across each of the plurality of activated cells; and

the HARQ-ACK of the first device generated in the third generation manner is a HARQ-ACK of the first device having the second codebook size generated across each of the plurality of activated cells in the third generation manner.

10. A method of information processing, the method comprising:

sending indication information to a first device to indicate the first device to generate hybrid automatic repeat request determination information HARQ-ACK in one of a first generation mode, a second generation mode and a third generation mode;

the first generation method generates the HARQ-ACK according to a candidate position of a Physical Downlink Shared Channel (PDSCH) and a K1 set, wherein the K1 set comprises possible values of K1 during each scheduling, the K1 is a time interval between the PDSCH carrying downlink data and HARQ-ACK feedback information of the downlink data, the second generation method generates the HARQ-ACK according to a Data Allocation Indication (DAI) in Downlink Control Information (DCI), and the third generation method generates the HARQ-ACK according to the number of HARQ processes;

receiving HARQ-ACK (hybrid automatic repeat request-acknowledgement) information of the first equipment;

processing the HARQ-ACK according to the codebook size of the HARQ-ACK;

wherein the codebook size of the HARQ-ACK is related to the number of hybrid automatic repeat request (HARQ) processes of the first device, and the number of HARQ processes is the number of HARQ processes supported by the first device or the number of HARQ processes configured by the first device.

11. The method of claim 10, wherein the indication information comprises a first threshold, and wherein the first device is instructed to generate the HARQ-ACK in one of a first generation manner, a second generation manner, and a third generation manner according to a comparison result between the first threshold and the number of HARQ processes.

12. The method as claimed in claim 10, wherein the indication information is used to instruct the first device to generate the HARQ-ACK according to one of the first generation method, the second generation method, and the third generation method when receiving downlink data on a target bandwidth portion BWP, where the HARQ-ACK is HARQ-ACK of the downlink data on the target BWP.

13. The method according to any of claims 10-12, wherein transmitting the indication information to the first device comprises transmitting radio resource control, RRC, information or medium access control layer control element, MAC CE, information or downlink control information, DCI, including the indication information to the first device.

14. A first device, characterized in that the first device comprises:

a transceiver for receiving indication information of a second device;

a processor, configured to generate HARQ-ACK for hybrid automatic repeat request acknowledgement information of the first device in one of a first generation manner, a second generation manner, and a third generation manner according to the indication information;

the first generation method generates HARQ-ACK of the first device according to a candidate position of a Physical Downlink Shared Channel (PDSCH) and a K1 set, where the K1 set includes possible values of K1 in each scheduling, the K1 is a time interval between the PDSCH carrying downlink data and HARQ-ACK feedback information of the downlink data, the second generation method generates HARQ-ACK of the first device according to a Data Allocation Indication (DAI) in Downlink Control Information (DCI), and the third generation method generates HARQ-ACK of the first device according to the number of HARQ processes;

the transceiver further configured to transmit HARQ-ACK of the first device to the second device,

wherein the codebook size of the HARQ-ACK of the first device is related to the number of HARQ processes of the first device, and the number of HARQ processes is the number of HARQ processes supported by the first device or the number of HARQ processes configured by the first device.

15. A first device, characterized in that the first device comprises:

a processor configured to determine a first codebook size of hybrid automatic repeat request-determining information HARQ-ACK of the first device, the first codebook size being related to a first generation manner;

the processor is further configured to determine a second codebook size for HARQ-ACK of the first device, the second codebook size being related to a third generation approach;

the processor further configured to determine a HARQ-ACK of the first device,

when the first codebook size is smaller than or equal to the second codebook size, the HARQ-ACK of the first device is generated in the first generation manner and has the first codebook size, the first generation manner generates the HARQ-ACK of the first device according to a candidate position of a Physical Downlink Shared Channel (PDSCH) and a set of K1, the set of K1 includes possible values of K1 at each scheduling, and the K1 is a time interval between the PDSCH carrying downlink data and HARQ-ACK feedback information of the downlink data;

and when the first codebook size is larger than the second codebook size, the HARQ-ACK of the first device is generated in the third generation mode and has the second codebook size, and the third generation mode generates the HARQ-ACK of the first device according to the number of the HARQ processes;

the processor is further configured to generate a HARQ-ACK of the first device;

a transceiver for transmitting HARQ-ACK of the first device to a second device,

16. A second device, comprising:

a transceiver for transmitting indication information to a first device, the indication information being used for indicating the first device to generate hybrid automatic repeat request-determining information HARQ-ACK in one of a first generation manner, a second generation manner and a third generation manner,

the first generation method generates the HARQ-ACK according to a candidate position of a Physical Downlink Shared Channel (PDSCH) and a K1 set, where the K1 set includes possible values of K1 in each scheduling, the K1 is a time interval between the PDSCH carrying downlink data and HARQ-ACK feedback information of the downlink data, the second generation method generates the HARQ-ACK according to a Data Allocation Indication (DAI) in Downlink Control Information (DCI), and the third generation method generates the HARQ-ACK according to the number of HARQ processes;

the transceiver is further configured to receive HARQ-ACK (hybrid automatic repeat request-acknowledgement) information of the first device;

a processor, configured to process the HARQ-ACK according to the codebook size of the HARQ-ACK, where the codebook size of the HARQ-ACK is related to the number of HARQ processes of the first device, and the number of HARQ processes is the number of HARQ processes supported by the first device or the number of HARQ processes configured for the first device.

17. A communication system comprising a first device according to any of claims 14 to 15 and a second device according to claim 16.

18. A computer-readable storage medium comprising instructions that, when executed on a communication device, cause the communication device to perform the method of any of claims 1 to 13.

19. A chip, characterized in that it is connected to a memory for reading and executing a software program stored in said memory for implementing the method according to any one of claims 1 to 13.

20. An apparatus comprising a processor and a memory, wherein the memory has stored thereon a program or instructions that, when executed by the processor, implements the method of any of claims 1-13.