WO2024055319A1

WO2024055319A1 - Wireless communication method, terminal device, and network device

Info

Publication number: WO2024055319A1
Application number: PCT/CN2022/119445
Authority: WO
Inventors: 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2024-03-21

Abstract

A wireless communication method, a terminal device, and a network device. The method comprises: a terminal device receiving first downlink control information, which is sent by a network device; and according to the first downlink control information, determining hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to at least one uplink hybrid automatic repeat request (HARQ) process of the terminal device, wherein N uplink HARQ processes of the terminal device comprise at least one first-type uplink HARQ process, and the first-type uplink HARQ process corresponds to a first mode, N being a positive integer.

Description

Wireless communication method, terminal equipment and network equipment

Technical field

Embodiments of the present application relate to the field of communications, and specifically relate to a wireless communication method, terminal equipment, and network equipment.

Background technique

In the new wireless non-terrestrial communication network (New Radio NTN, NR-NTN) system, the Hybrid Automatic Repeat reQuest (HARQ) process is introduced to enable, but the network device will not transmit physical uplink to the terminal device. Hybrid Automatic Repeat request Acknowledgment (HARQ-ACK) information corresponding to the Physical Uplink Shared Channel (PUSCH). Therefore, when the uplink HARQ process is configured to be disabled, no network device sends The terminal device indicates the need for HARQ-ACK information corresponding to the uplink HARQ process.

However, in the Internet of Things NTN (IoT-NTN) system, the network device will transmit the HARQ-ACK information corresponding to PUSCH to the terminal device. In this case, when the uplink HARQ process is configured to be disabled At this time, how the network device indicates the HARQ-ACK information corresponding to the uplink HARQ process to the terminal device is an issue that needs to be solved urgently.

Contents of the invention

The present application provides a wireless communication method, terminal equipment and network equipment. The network equipment can indicate to the terminal equipment HARQ-ACK information corresponding to at least one uplink HARQ process through downlink control information.

In a first aspect, a wireless communication method is provided, including: a terminal device receiving first downlink control information sent by a network device;

According to the first downlink control information, determine the hybrid automatic retransmission response HARQ-ACK information corresponding to at least one uplink hybrid automatic retransmission HARQ process of the terminal equipment, wherein the N uplink HARQ-ACK information of the terminal equipment The process includes at least one first type uplink HARQ process, the first type uplink HARQ process corresponds to the first mode, and N is a positive integer.

In a second aspect, a wireless communication method is provided, including: a network device sending first downlink control information to a terminal device, the first downlink control information being used to determine at least one uplink hybrid automatic request of the terminal device Retransmit the hybrid automatic request retransmission response HARQ-ACK information corresponding to the HARQ process, wherein the N uplink HARQ processes of the terminal device include at least one first type uplink HARQ process, and the first type uplink HARQ process corresponds to the first type uplink HARQ process. A pattern, N is a positive integer.

A third aspect provides a terminal device for executing the method in the above first aspect or its respective implementations.

Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect or its respective implementations.

A fourth aspect provides a network device for performing the method in the above second aspect or its respective implementations.

Specifically, the network device includes a functional module for executing the method in the above second aspect or its respective implementations.

In the fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory to execute the method in the above first aspect or its implementations.

A sixth aspect provides a network device, including a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, and execute the method in the above second aspect or its respective implementations.

A seventh aspect provides a chip for implementing any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.

Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or implementations thereof. method.

An eighth aspect provides a computer-readable storage medium for storing a computer program, the computer program causing the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation thereof.

In a ninth aspect, a computer program product is provided, including computer program instructions, which cause a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation thereof.

A tenth aspect provides a computer program that, when run on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation thereof.

Through the above technical solution, the network device can indicate the HARQ-ACK information corresponding to at least one uplink HARQ process to the terminal device through the first downlink control information. Correspondingly, the terminal device can determine at least one based on the first downlink control information sent by the network device. HARQ-ACK information corresponding to an uplink HARQ process. When at least one uplink HARQ process of the terminal device corresponds to the first mode, the terminal device and the network device can have a consistent understanding of the association between the uplink HARQ process to be fed back HARQ-ACK information and its corresponding HARQ-ACK information.

Description of drawings

Figure 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

Figure 2 is a schematic interaction diagram of a wireless communication method provided according to an embodiment of the present application.

Figure 3 is a schematic interaction diagram of another wireless communication method provided according to an embodiment of the present application.

Figure 4 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

Figure 5 is a schematic block diagram of a network device provided according to an embodiment of the present application.

Figure 6 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Figure 7 is a schematic block diagram of a chip provided according to an embodiment of the present application.

Figure 8 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Regarding the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), wireless fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

The communication system in the embodiment of this application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) network deployment scenario.

The communication system in the embodiment of the present application can be applied to the unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or the communication system in the embodiment of the present application can also be applied to the licensed spectrum, where the licensed spectrum can also be Considered a non-shared spectrum.

The embodiments of the present application can be applied to non-terrestrial communication network (Non-Terrestrial Networks, NTN) systems, and can also be applied to terrestrial communication network (Terrestrial Networks, TN) systems.

As examples, NTN systems include but are not limited to New Radio NTN (NR-NTN) systems and Internet of Things non-terrestrial communication networks (Internet of Things NTN, IoT-NTN) systems. Among them, the IoT-NTN system can include the Narrow Band Internet of Things over NTN (NB-IoT-NTN) system and the enhanced machine type communication non-terrestrial communication network (enhanced Machine Type Communication over NTN, eMTC) -NTN) system.

The embodiments of this application describe various embodiments in combination with network equipment and terminal equipment. The terminal equipment may also be called user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.

The terminal device can be a station (STATION, ST) in the WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, or a personal digital processing station. (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or in the future Terminal equipment in the evolved Public Land Mobile Network (PLMN) network, etc.

In the embodiment of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites). superior).

In the embodiment of this application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, or an augmented reality (Augmented Reality, AR) terminal. Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home, etc. The terminal equipment involved in the embodiments of this application may also be called terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. Terminal equipment can also be fixed or mobile.

As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

In the embodiment of this application, the network device may be a device used to communicate with mobile devices. The network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA. , or it can be a base station (NodeB, NB) in WCDMA, or an evolutionary base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network network equipment (gNB) or network equipment in the future evolved PLMN network or network equipment in the NTN network, etc.

As an example and not a limitation, in the embodiment of the present application, the network device may have mobile characteristics, for example, the network device may be a mobile device. In some embodiments of the present application, network equipment may be satellites or balloon stations. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite ) satellite, etc. In some embodiments of the present application, the network device may also be a base station installed on land, water, or other locations.

In this embodiment of the present application, network equipment can provide services for a cell, and terminal equipment communicates with the network equipment through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell can be a network equipment ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). The small cell here can include: urban cell (Metro cell), micro cell (Micro cell), pico cell ( Pico cell), femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.

Exemplarily, FIG. 1A is a schematic architectural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1A , the communication system 100 may include a network device 110 , and the network device 110 may be a device that communicates with a terminal device 120 (also known as a communication terminal or terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within the coverage area.

Figure 1A exemplarily shows one network device and two terminal devices. In some embodiments of the present application, the communication system 100 may include multiple network devices and other numbers of terminals may be included within the coverage of each network device. Equipment, the embodiments of this application do not limit this.

Exemplarily, FIG. 1B is a schematic architectural diagram of another communication system provided by an embodiment of the present application. Please refer to FIG. 1B , including a terminal device 1101 and a satellite 1102. Wireless communication can be performed between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 may also be called NTN. In the architecture of the communication system shown in FIG. 1B , the satellite 1102 may have the function of a base station, and the terminal device 1101 and the satellite 1102 may communicate directly. In the system architecture, the satellite 1102 can be called a network device. In some embodiments of the present application, the communication system may include multiple network devices 1102, and the coverage of each network device 1102 may include other numbers of terminal devices, which is not limited in the embodiments of the present application.

Exemplarily, FIG. 1C is an architectural schematic diagram of another communication system provided by an embodiment of the present application. Please refer to Figure 1C, which includes a terminal device 1201, a satellite 1202 and a base station 1203. Wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202 and the base station 1203 may also be called NTN. In the architecture of the communication system shown in FIG. 1C , the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202 . Under this system architecture, the base station 1203 can be called a network device. In some embodiments of the present application, the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which is not limited in the embodiments of the present application.

It should be noted that Figures 1A to 1C are only used as examples to illustrate the systems to which this application is applicable. Of course, the methods shown in the embodiments of this application can also be applied to other systems, such as 5G communication systems, LTE communication systems, etc. , the embodiments of this application do not specifically limit this.

In some embodiments of the present application, the wireless communication system shown in Figure 1A-Figure 1C may also include a mobility management entity (Mobility Management Entity, MME), access and mobility management function (Access and Mobility Management Function, AMF) and other network entities, which are not limited in the embodiments of this application.

It should be understood that in the embodiments of this application, devices with communication functions in the network/system may be called communication devices. Taking the communication system 100 shown in FIG. 1A as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be described again here. ; The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiments of this application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.

In the description of the embodiments of this application, the term "correspondence" can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed, configuration and being. Configuration and other relationships.

Instruction information in the embodiments of this application includes system messages, physical layer signaling (such as downlink control information (Downlink Control Information, DCI)), radio resource control (Radio Resource Control, RRC) signaling and media access control unit (Media At least one of Access Control Control Element, MAC CE).

The high-level parameters or high-level signaling in the embodiments of this application include at least one of system messages, Radio Resource Control (Radio Resource Control, RRC) signaling, and Media Access Control Element (MAC CE).

In some embodiments of this application, "predefined" can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). This application is for Its specific implementation method is not limited. For example, predefined can refer to what is defined in the protocol.

In some embodiments of this application, the "protocol" may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the Hybrid Automatic Repeat request Acknowledgment (HARQ-ACK) feedback in the NTN system will be described.

In the NTN system, due to the long communication distance between the terminal equipment and the network equipment, the round trip transmission delay (Round Trip Time, RTT) of signal transmission is very large. In the GEO system, the RTT of signal transmission can be on the order of hundreds of milliseconds. For example, the maximum RTT of signal transmission can be about 600 milliseconds. In a LEO system, the RTT of signal transmission can be on the order of tens of milliseconds. Therefore, when considering the retransmission mechanism of signal transmission, the impact of RTT on the throughput of downlink data transmission and uplink data transmission cannot be ignored. The HARQ mechanism in the NR system is no longer applicable to the NTN system.

In the NR-NTN system, the HARQ mechanism is enhanced, such as the introduction of disabling the HARQ process. Specifically, the network device can disable one or some HARQ processes of the terminal device, or in other words, the network device can configure the HARQ process of the terminal device as a disabled (Disabled) HARQ process or an enabled ( Enabled) HARQ process, or in other words, the HARQ process is configured to disable the HARQ-ACK feedback mode or enable the HARQ-ACK feedback mode. For the HARQ process in the TN network, it can usually be considered as an enabled HARQ process, or in other words, the HARQ-ACK feedback mode is enabled.

When configuring the mode of the HARQ process, it is supported to take the HARQ process as a unit, and the RRC uses a bitmap to indicate whether each HARQ process is an enabled HARQ process or a disabled HARQ process. For the downlink HARQ process, the bitmap starts from the first bit on the left and corresponds to downlink HARQ process 0, downlink HARQ process 1, etc. from left to right. The bit set to 1 indicates that the corresponding HARQ process is configured to disable downlink HARQ- ACK feedback mode, the bit is set to 0 to indicate that the corresponding HARQ process is configured to enable downlink HARQ-ACK feedback mode. For the uplink HARQ process, the bitmap starts from the first bit on the left and corresponds to uplink HARQ process 0, uplink HARQ process 1, etc. from left to right. The bit setting is 1, which means that the corresponding HARQ process is configured as HARQ mode A. The bit setting A value of 0 indicates that the corresponding HARQ process is configured as HARQ mode B.

For the downlink HARQ process, if the downlink HARQ-ACK feedback mode is configured to be disabled, the terminal device does not need to perform HARQ-ACK information feedback for the transport blocks transmitted in the downlink HARQ process. Specifically, when the downlink HARQ process is configured to enable the downlink HARQ-ACK feedback mode, if the terminal device receives a transport block transmitted using the downlink HARQ process, it will send the HARQ-ACK corresponding to the transport block to the network device. After feedback, it is possible to receive the transmission block again for the network device to use the downlink HARQ process to schedule downlink data transmission to the terminal device. When the downlink HARQ process is configured to disable the downlink HARQ-ACK feedback mode, if the terminal device receives a transport block transmitted using the downlink HARQ process, it does not need to send the HARQ-ACK feedback corresponding to the transport block to the network device. , so after a certain processing time interval passes after the terminal device receives the transmission block, it may again receive a transmission block in which the network device uses the downlink HARQ process to schedule downlink data transmission to the terminal device.

For the uplink HARQ process, regardless of whether the uplink HARQ process is configured to enable the uplink HARQ-ACK feedback mode or disable the uplink HARQ-ACK feedback mode, when the terminal device receives the uplink grant for the transport block scheduled to be transmitted using the uplink HARQ process After receiving the information, the terminal device sends the Physical Uplink Shared Channel (PUSCH) to the network device according to the uplink authorization information instructions, and only after the PUSCH is transmitted, the terminal device may receive the scheduled transmission using the uplink HARQ process again. The upstream authorization information of the transmission block. Therefore, in terms of data scheduling and transmission at the physical layer, the behavior on the terminal device side is the same. However, when the terminal device is configured with uplink discontinuous reception (Discontinuous Reception, DRX), the terminal device handles the DRX behavior of two different HARQ processes differently. In order to distinguish these two different upstream HARQ processes, the network device can configure different upstream HARQ states for one or some upstream HARQ processes of the terminal device. Specifically, the network device can configure a certain uplink HARQ process as "HARQ mode A" or "HARQ mode B", where "HARQ mode A" can be considered to correspond to enabling the uplink HARQ-ACK feedback mode, and "HARQ mode B" It can be considered that this corresponds to disabling the uplink HARQ-ACK feedback mode.

For a HARQ process that is configured to disable HARQ-ACK feedback mode, during downlink data transmission or uplink data transmission, the network device does not need to wait for the feedback result of the last downlink transmission block transmitted using the HARQ process or the feedback result of the uplink transmission block. The decoding result means that the HARQ process can be rescheduled for downlink data transmission or uplink data transmission. Therefore, as long as it is ensured that the terminal device has completed processing the data in the previously scheduled HARQ process when it receives the currently scheduled HARQ process, the network device can reuse the disabled HARQ process to perform multiple processing for the terminal device. Scheduling of downlink transmission blocks or uplink transmission blocks can reduce the impact of RTT.

In order to facilitate understanding of the technical solutions of the embodiments of this application, the HARQ-ACK feedback for PUSCH in the Internet of Things (IoT) system will be described.

In the enhanced machine type communication (eMTC) system, if the terminal device is configured to cover the enhanced mode A (Coverage Enhancement ModeA, CEmodeA), there are up to 8 uplink HARQ processes in each serving cell; if the terminal If the device is configured with coverage enhancement mode B (Coverage Enhancement ModeB, CEmodeB), then in the case where the terminal device is configured with multi-transport block physical uplink shared channel (TB-PUSCH) high-level parameters, each service There are at most 4 uplink HARQ processes in a cell, otherwise there are at most 2 uplink HARQ processes in each serving cell. In addition, if the terminal device is configured with CEmodeA, it needs to monitor DCI format 6-1A or 6-0A; if the terminal device is configured with CEmodeB, it needs to monitor DCI format 6-1B or 6-0B.

DCI format 6-0A or 6-0B can be used to indicate the HARQ-ACK information corresponding to PUSCH transmission; or, in other words, DCI format 6-0A or 6-0B can be used to indicate the acknowledgment (Acknowledgement, ACK) feedback corresponding to PUSCH transmission. .

In one case, in DCI format 6-0A, if the multi-TB-PUSCH higher layer parameter configuration (such as ce-PUSCH-MultiTB-Config) is not enabled and the resource block allocation field (Resource block assignment) is set to all 1, or multi-TB-PUSCH high-level parameter configuration (such as ce-PUSCH-MultiTB-Config) is enabled and MTC Physical Downlink Control Channel (MTC Physical Downlink Control Channel, MPDCCH) feeds back HARQ-ACK high-level parameters (such as mpdcch-UL-HARQ-ACK-FeedbackConfig) is configured and the high-order (Most Significant Bit, MSB) 6 bits in the Scheduling TBs for Unicast Field are set to "110111", then the DCI Format 6-0A is used to indicate ACK feedback corresponding to PUSCH transmission. Specifically, 8 bits consisting of the 6 low-order bits (LSB) in the Scheduling TBs for Unicast Field and the 2 high-order bits in the repetition number field (Repetition number) are used. bitmap to indicate HARQ-ACK. The mapping relationship between the order of the bitmap and the HARQ process index is that the HARQ process index is mapped one by one to the bits in the bitmap from high to low in ascending order. For each bit in this bitmap, a value of 1 indicates ACK, and a value of 0 is a reserved value. In the DCI format 6-0A, in addition to the flag field (Flag format 6-0A/format 6-1A differentiation) and the DCI subframe repetition number field (DCI subframe repetition number) used to distinguish format 6-0A or format 6-1A All are set to 0.

In another case, for DCI format 6-0A, when the CRC of DCI format 6-0A is scrambled by the Preconfigured Uplink Resource Radio Network Temporary Identity (PUR-RNTI) PUR-RNTI And when the Resource block assignment field (Resource block assignment) is set to all 1, the DCI format 6-0A includes a 1-bit ACK or Fallback indicator field (ACK or Fallback indicator), where the value of this bit is 0 to indicate ACK. A value of 1 indicates fallback mode.

In one case, in DCI format 6-0B, if the multi-TB-PUSCH higher layer parameter configuration (such as ce-PUSCH-MultiTB-Config) is not enabled and the modulation coding scheme field (Modulation) in the DCI format 6-0B and coding scheme) is 4 bits and set to all 1, or multi-TB-PUSCH high-level parameter configuration (ce-PUSCH-MultiTB-Config) is enabled and MPDCCH feeds back HARQ-ACK high-level parameters (for example, mpdcch-UL-HARQ- ACK-FeedbackConfig) is configured and the high-order (MSB) 6 bits in the Scheduling TBs for Unicast Field are set to "111111", then DCI format 6-0B is used to indicate the ACK corresponding to the PUSCH transmission feedback. Specifically, a 4-bit bitmap consisting of the lower 4 bits (LSB) of the Scheduling TBs for Unicast Field is used to indicate HARQ-ACK. Among them, the mapping relationship between the order of the bitmap and the HARQ process index is that the HARQ process index maps one by one to the bits from high to low in the bitmap in ascending order from small to large. For each bit in this bitmap, a value of 1 indicates ACK, and a value of 0 is a reserved value. In the DCI format 6-0B, in addition to the flag field (Flag format6-0B/format 6-1B differentiation) and the DCI subframe repetition number field (DCI subframe repetition number) used to distinguish format 6-0B or format 6-1B All are set to 0.

In another case, for DCI format 6-0B, when the CRC of DCI format 6-0B is scrambled by PUR-RNTI, and the resource block assignment field (Resource block assignment) is used for sub-PRB resource allocation (sub- PRB resource allocation) is set to all 1 or when the modulation and coding scheme field (Modulation and coding scheme) is set to all 1 when not used for sub-PRB resource allocation (sub-PRB resource allocation), DCI format 6-0B includes 1 bit ACK or Fallback indicator field (ACK or Fallback indicator), where the value of this bit is 0 to indicate ACK, and the value of this bit is 1 to indicate fallback mode.

In the NB-IoT system, for DCI format N0, when the cyclic redundancy check (CRC) of DCI format N0 is scrambled by PUR-RNTI and the modulation and coding scheme field (Modulation and coding scheme) is set to When "1110", DCI format N0 includes a 1-bit ACK or Fallback indicator field (ACK or Fallback indicator), where the value of this bit is 0 to indicate ACK, and the value of 1 indicates fallback mode.

For preconfigured uplink resources (PUR), the terminal device can use the uplink resources preconfigured by the network device in the idle state (RRC_IDLE) for PUSCH transmission without completing the random access process. When the terminal device is in the connected state, it can request to be configured with PUR or request the PUR configuration to be released. The network device may configure the PUR for the terminal device based on the terminal device's request, the terminal device's registration information, and/or local policies. PUR takes effect only in the cell that receives the cell PUR configuration. When the upper layer requests to re-establish or restore the RRC connection, and the terminal device is configured with a valid PUR and meets the TA validity criteria, PUR transmission can be triggered.

During uplink transmission using PUR resources, the terminal device may detect the ACK or fallback mode indication information carried by the PUR-RNTI scrambled PDCCH within the PUR response window. For example, if the end subframe of the terminal device using preconfigured uplink resources for PUSCH transmission is subframe n, the terminal device should detect the Physical Downlink Control Channel (PDCCH) within the PUR response window starting from subframe n+4. ), and stops the detection of PDCCH in the PUR response window after detecting the PDCCH scrambled by PUR-RNTI. Among them, the length of the PUR response window is configured by high-level parameters.

If the terminal device receives the ACK indication, it means that the transport block in the PUSCH currently transmitted using the PUR resource is successfully received. For example, the terminal device does not need to retransmit the transmission block. Alternatively, if the terminal device receives the fallback mode indication, it means that the transport block in the PUSCH currently transmitted using the PUR resource has not been successfully received. For example, the terminal device needs to retransmit the transmission block.

In the IoT-NTN system, the introduction of HARQ process disablement is mainly enhanced based on the HARQ process disablement feature in the NR-NTN system. However, in the NR-NTN system, only how the terminal device feeds back the enhanced HARQ-ACK information corresponding to the downlink HARQ process to the network device when the downlink HARQ process is configured to be disabled is considered. Since the network device will not transmit the HARQ-ACK information corresponding to the PUSCH to the terminal device, when the uplink HARQ process is configured to be disabled, there is no need for the network device to indicate to the terminal device the HARQ-ACK information corresponding to the uplink HARQ process. .

However, in the IoT-NTN system, the network device will transmit the HARQ-ACK information corresponding to PUSCH to the terminal device. In this case, when the uplink HARQ process is configured to be disabled, how does the network device indicate the uplink HARQ to the terminal device? The HARQ-ACK information corresponding to the process is an issue that needs to be solved urgently.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application. The embodiments of this application include at least part of the following contents.

Figure 2 is a schematic interaction diagram of a wireless communication method 200 according to an embodiment of the present application. As shown in Figure 2, the method 200 includes the following content:

S210, the network device sends the first downlink control information to the terminal device;

Correspondingly, the terminal device receives the first downlink control information sent by the network device;

S220: The terminal device determines the hybrid automatic retransmission response HARQ-ACK information corresponding to at least one uplink hybrid automatic retransmission HARQ process of the terminal device based on the first downlink control information.

In some embodiments, the first downlink control information may be DCI, or may be other downlink control information, which is not limited in this application.

In some embodiments, the N uplink HARQ processes of the terminal device include at least one first type uplink HARQ process and/or at least one second type uplink HARQ process, wherein the first type uplink HARQ process corresponds to the first mode, and the second type uplink HARQ process corresponds to the first mode. The class uplink HARQ process corresponds to the second mode.

In some embodiments, the N uplink HARQ processes of the terminal device include uplink HARQ processes of the terminal device on one cell. In a specific embodiment, the N uplink HARQ processes of the terminal device include all uplink HARQ processes of the terminal device in a cell.

In some embodiments, the N uplink HARQ processes of the terminal device include uplink HARQ processes of the terminal device on multiple cells. Optionally, the multiple cells belong to a cell group. In a specific embodiment, the N uplink HARQ processes of the terminal device include all uplink HARQ processes of the terminal device on all uplink cells in multiple uplink cells.

In some embodiments, the N uplink HARQ processes of the terminal device are pre-configured, or may be configured by the network device, which is not limited in this application. For example, the protocol stipulates that the terminal device supports N uplink HARQ processes.

It should be understood that in some embodiments of the present application, cells and carriers may be equivalent. For example, "downlink cell" can be replaced by "downlink carrier", "uplink cell" can be replaced by "uplink carrier", etc.

In some embodiments, the first mode is HARQ mode B; or, the first mode is a disable HARQ-ACK feedback mode.

In some embodiments, the second mode is HARQ mode A; or, the second mode is HARQ-ACK feedback enabled mode.

In some embodiments, the first type of uplink HARQ process corresponds to the first mode, including:

The first type of uplink HARQ process corresponds to HARQ mode B; or

The first type of uplink HARQ process corresponds to disabling HARQ-ACK feedback mode; or

The first type of uplink HARQ process is configured as HARQ mode B; or

The first type of uplink HARQ process is configured to disable the HARQ-ACK feedback mode, or in other words, the first type of uplink HARQ process is configured to be disabled (Disabled).

In some embodiments, the second type of uplink HARQ process corresponds to the second mode, including:

The second type of uplink HARQ process corresponds to HARQ mode A; or

The second type of uplink HARQ process corresponds to enabling HARQ-ACK feedback mode; or

The second type of uplink HARQ process is configured as HARQ mode A; or

The second type of uplink HARQ process is configured to enable the HARQ-ACK feedback mode, or in other words, the second type of uplink HARQ process is configured as enabled (Enabled).

Optionally, HARQ mode A can also be considered as a HARQ mode with HARQ-ACK feedback enabled; HARQ mode B can also be considered as a HARQ mode with HARQ-ACK feedback disabled.

In some embodiments of the present application, the method 200 further includes:

The terminal device reports first capability information to the network device. The first capability information is used to indicate that the terminal device supports the uplink HARQ process of the terminal device and is configured in the first mode. In other words, the terminal The device supports the uplink HARQ process in the first mode.

In some embodiments of the present application, the mode corresponding to at least one uplink HARQ process of the terminal device is determined based on the first configuration information.

It should be understood that the first configuration information can be carried through any downlink signaling, which may include, but is not limited to, RRC signaling and/or downlink control information.

In some embodiments, the first configuration information may be a mode corresponding to at least one uplink HARQ process of the terminal device in an explicit or implicit manner. Optionally, the first configuration information is used to indicate that the uplink HARQ process corresponds to the first mode or the second mode, or to indicate whether the uplink HARQ process corresponds to the first mode.

For example, the first configuration information is used to indicate that the mode corresponding to the uplink HARQ process is HARQ mode A or HARQ mode B.

For another example, the first configuration information is used to indicate whether the mode corresponding to the uplink HARQ process is HARQ mode B.

For another example, the first configuration information is used to indicate that the uplink HARQ process is configured to disable the HARQ-ACK feedback mode or enable the HARQ-ACK feedback mode.

For another example, the first configuration information is used to indicate whether the uplink HARQ process is configured to disable the HARQ-ACK feedback mode.

In some embodiments, the first configuration information is used to indicate modes corresponding to the N uplink HARQ processes of the terminal device.

Optionally, when the first configuration information is carried through RRC signaling, the first configuration information is used to indicate modes corresponding to the N uplink HARQ processes of the terminal device.

In some embodiments, the first configuration information indicates modes corresponding to the N uplink HARQ processes through bit mapping.

Optionally, when the first configuration information is carried through RRC signaling, the first configuration information indicates modes corresponding to the N uplink HARQ processes of the terminal device in a bit mapping manner.

In some embodiments, the first configuration information includes N bits, corresponding to N uplink HARQ processes of the terminal device, where each bit corresponds to an uplink HARQ process, and each bit is used to indicate the corresponding uplink HARQ process. model.

For example, a bit value of 1 indicates that the corresponding uplink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

For another example, a bit value of 0 indicates that the corresponding uplink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

It should be understood that this application does not specifically limit the mapping relationship between the above N bits and N uplink HARQ processes, as long as it is ensured that different bits correspond to different uplink HARQ processes.

As a mapping method, each bit corresponds to an uplink HARQ process, which can include:

The N uplink HARQ processes are mapped one by one to the N bits in the first configuration information in an ascending order from small to large HARQ process indexes in a bit order from high to low.

As another mapping method, each bit corresponds to an uplink HARQ process, which can include:

The N uplink HARQ processes are mapped one by one to the N bits in the first configuration information in an ascending order from small to large HARQ process indexes in a bit order from low to high.

In some other embodiments, the first configuration information is used to indicate a mode corresponding to the target uplink HARQ process, and the target uplink HARQ process includes at least one HARQ process used by the terminal device for uplink transmission.

Optionally, the at least one uplink transmission may be an uplink transmission scheduled by the network device, or may be a scheduling-free uplink transmission, such as an uplink transmission using PUR resources.

Optionally, when the first configuration information is carried through downlink control information, the target uplink HARQ process includes a HARQ process used for uplink transmission scheduled by the downlink control information.

In some embodiments, the first configuration information is used to indicate the mode corresponding to the target uplink HARQ process, where,

When the uplink transmission corresponding to the target uplink HARQ process is scheduled by downlink control information, the first configuration information is carried in the downlink control information; or

When the uplink transmission corresponding to the target uplink HARQ process uses the preconfigured uplink resource PUR, the first configuration information is carried in RRC signaling.

That is to say, for uplink transmission scheduled by downlink control information, the network device can use the downlink control information to indicate the mode corresponding to the uplink HARQ process used in the uplink transmission. For uplink transmission that does not require scheduling (such as uplink transmission using PUR resources) ), the network device can indicate the mode corresponding to the uplink HARQ process used in the uplink transmission through RRC signaling.

In some embodiments, the first configuration information is used to indicate the mode corresponding to the target uplink HARQ process. When the uplink transmission corresponding to the target uplink HARQ process uses the preconfigured uplink resource PUR, the first configuration information is carried in In the downlink control information, the downlink control information is used to activate the preconfigured uplink resource PUR.

That is to say, in some cases, for scheduling-free uplink transmission (such as uplink transmission using PUR resources), if the network device needs to activate the PUR resource through the downlink control information, the network device can also use the downlink control information to activate the PUR resource. Indicates the mode corresponding to the uplink HARQ process used for the uplink transmission.

It can be understood that for scheduling-free uplink transmission (for example, uplink transmission using PUR resources), its associated uplink HARQ process number may be predefined, or may be configured by the network device, and this application does not make any reference to this. limited. For example, when a network device configures a PUR resource for a terminal device, it also configures the upstream HARQ process number associated with the PUR resource. For another example, the network device configures a PUR resource for the terminal device, and the terminal device calculates the uplink HARQ process number associated with the PUR resource based on the time domain location information of the PUR resource.

In some embodiments, the target uplink HARQ process includes one uplink HARQ process, then the first configuration information may include 1 bit used to indicate the mode corresponding to the one uplink HARQ process. For example, a bit value of 1 indicates that the corresponding uplink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode. For another example, a bit value of 0 indicates that the corresponding uplink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

In some embodiments, the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate the modes corresponding to the multiple uplink HARQ processes, wherein the modes corresponding to the multiple uplink HARQ processes are the same. .

In this case, the first configuration information may include 1 bit for indicating modes corresponding to the multiple uplink HARQ processes. For example, a bit value of 1 indicates that the corresponding uplink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode. For another example, a bit value of 0 indicates that the corresponding uplink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

In some other embodiments, the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate modes corresponding to the multiple uplink HARQ processes. Optionally, the first configuration information indicates modes corresponding to the plurality of uplink HARQ processes in a bitmap manner.

As an example and not a limitation, the target uplink HARQ process includes K uplink HARQ processes, then the first configuration information includes K bits, each bit corresponds to an uplink HARQ process among the K uplink HARQ processes, and the value of the bit is used Indicates the mode corresponding to the corresponding uplink HARQ process. For the mapping relationship between K bits and K uplink HARQ processes, refer to the relevant descriptions of the foregoing embodiments, which will not be described again here. K is an integer greater than 1. Optionally, the K uplink HARQ processes are the maximum number of uplink HARQ processes that can be scheduled for one downlink control information; or, the K uplink HARQ processes are the number of uplink HARQ processes that are actually scheduled for transmission of one downlink control information. As an example, a bit value of 1 indicates that the corresponding uplink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode. As another example, a bit value of 0 indicates that the corresponding uplink HARQ process corresponds to the first mode, otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

It should be understood that in some embodiments of the present application, the HARQ-ACK information corresponding to the uplink HARQ process may refer to the HARQ-ACK information corresponding to the uplink transmission using the uplink HARQ process. Optionally, the uplink transmission may be scheduled by the network device, or may be schedule-free. For example, the terminal device uses PUR resources for uplink transmission. Optionally, the uplink transmission may refer to the transmission of any uplink data or uplink information. For example, the uplink transmission may include but is not limited to PUSCH transmission.

In some embodiments, at least one uplink HARQ process of the terminal device only includes a second type of uplink HARQ process, or only includes a first type of uplink HARQ process, or may also include a first type of uplink HARQ process and a second type of uplink HARQ process. Class uplink HARQ process.

The following describes a method of determining HARQ-ACK information corresponding to at least one uplink HARQ process of the terminal device based on the first downlink control information with reference to specific embodiments.

Embodiment 1: The first downlink control information is used to determine the HARQ-ACK information corresponding to the second type uplink HARQ process of the terminal device. In other words, the network device only indicates to the terminal device the HARQ-ACK information corresponding to the uplink HARQ process in the second mode, and does not feed back the HARQ-ACK information corresponding to the uplink HARQ process in the first mode.

In this case, S220 can include:

According to the first downlink control information, HARQ-ACK information corresponding to at least one second type uplink HARQ process of the terminal device is determined.

In some embodiments, the first downlink control information indicates HARQ-ACK information corresponding to the second type of uplink HARQ process in a bitmap manner.

For example, the N uplink HARQ processes of the terminal device include M second-type uplink HARQ processes, and the first downlink control information is used to indicate the HARQ-ACK information corresponding to the M second-type uplink HARQ processes in a bitmap manner, where , M is a positive integer.

As an example, the first downlink control information includes M bits, each bit corresponds to a second type uplink HARQ process, and the value of each bit is used to indicate the HARQ-ACK information corresponding to the corresponding second type uplink HARQ process.

It should be understood that this application does not specifically limit the mapping relationship between the above-mentioned M bits and M second-type uplink HARQ processes, as long as it is ensured that different bits correspond to different second-type uplink HARQ processes.

As a mapping method, each bit corresponds to a type 2 uplink HARQ process, including:

The M second type uplink HARQ processes are mapped one by one to the M bits in ascending order from small to large HARQ process indexes in bit order from high to low.

That is, the highest bit among the M bits corresponds to the second type uplink HARQ process with the smallest HARQ process index, and the lowest bit among the M bits corresponds to the second type uplink HARQ process with the largest HARQ process index, and so on.

As another mapping method, each bit corresponds to a type 2 uplink HARQ process, including:

M type-2 uplink HARQ processes are mapped one by one to M bits in ascending order from small to large HARQ process indexes in bit order from low to high.

That is, the highest bit among the M bits corresponds to the second type uplink HARQ process with the largest HARQ process index, and the lowest bit among the M bits corresponds to the second type uplink HARQ process with the smallest HARQ process index, and so on.

In some embodiments, the first downlink control information is used to indicate the HARQ-ACK information corresponding to the second type of uplink HARQ process through bit mapping, and may include:

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission; and/or,

For an uplink HARQ process in the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or a negative acknowledgment NACK.

That is to say, the value of the bit corresponding to the second type of uplink HARQ process can be set in at least one of the following ways:

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission; and/or

For an uplink HARQ process in the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a specific value, such as a reserved value or a negative acknowledgment NACK.

In some embodiments of the present application, the uplink HARQ process corresponding to uplink transmission may refer to the uplink HARQ process used by the terminal device for uplink transmission. Optionally, the terminal device using the uplink HARQ process for uplink transmission may be scheduled by the network device, or may be selected by the terminal device itself.

In other embodiments of the present application, the uplink HARQ process corresponding to the uplink transmission may refer to the uplink HARQ process used by the terminal device for uplink transmission, and the network device has not sent the HARQ-ACK information corresponding to the uplink transmission to the terminal device. Optionally, the terminal device using the uplink HARQ process for uplink transmission may be scheduled by the network device, or may be selected by the terminal device itself.

In some embodiments, the uplink HARQ process that does not correspond to uplink transmission may mean that the terminal device does not use the uplink HARQ process for uplink transmission; or the uplink HARQ process that does not correspond to uplink transmission may refer to that the terminal device does not use the uplink HARQ process for uplink transmission. transmission.

In other embodiments, the uplink HARQ process that does not correspond to uplink transmission may mean that the terminal device does not use the uplink HARQ process for uplink transmission, and the network device has not sent the HARQ-ACK information corresponding to the uplink HARQ process to the terminal device; or The uplink HARQ process that does not correspond to uplink transmission may mean that the terminal device does not use the uplink HARQ process for uplink transmission, and the network device has not sent the HARQ-ACK information corresponding to the uplink HARQ process to the terminal device.

In some embodiments, for the second type of uplink HARQ process corresponding to uplink transmission, the value of the corresponding bit is set according to the demodulation result of the corresponding uplink transmission, which may include:

When the transport block in the second type uplink HARQ process is demodulated correctly, the value of the corresponding bit indicates ACK; otherwise, the corresponding bit indicates a reserved value or indicates NACK.

Optionally, the corresponding bit indicates the reserved value or indicates NACK, which may include:

If the value is 1, it means ACK, and the value of the corresponding bit is 0, or in other words, the value 0 means a reserved value or NACK.

If the value is 0, it represents ACK, and the corresponding bit has a value of 1, or in other words, a value of 1 represents a reserved value or NACK.

Optionally, for the second type of uplink HARQ process that does not correspond to uplink transmission, its corresponding bit indicates the reservation value or negative acknowledgment NACK, which may include:

As an example, assume that the terminal device includes 8 uplink HARQ processes on the first cell, that is, the value of N is 8, in which the uplink HARQ processes 0, 2, 4, 6, and 7 are configured as HARQ mode B (that is, corresponding to the first mode), that is, the value of M is 3. The network device receives two PUSCHs transmitted by the terminal device using uplink HARQ process 3 and uplink HARQ process 4 on the first cell, and the demodulation results of the two PUSCHs are both ACKs. In this case, the first downlink control information includes a 3-bit bitmap, where the 3-bit bitmap is used to indicate the second type of uplink HARQ process (including uplink HARQ process 1, uplink HARQ process 3 and uplink HARQ process 5). ) corresponding HARQ-ACK information. Among them, assuming that the value is 1, it means ACK. For the second type of uplink HARQ process corresponding to the uplink transmission (i.e., uplink HARQ process 3), the value of the corresponding bit is set according to the demodulation result of the uplink transmission. Since the uplink HARQ process 3 corresponds to If the demodulation result of the PUSCH is ACK, the corresponding bit is set to 1.

For the second type of uplink HARQ process that does not correspond to uplink transmission (ie, uplink HARQ process 1 and uplink HARQ process 5), the value of the corresponding bit indicates the reserved value or NACK. In this example, the value 1 indicates ACK, then The value of the corresponding bit is 0.

For the first mapping method: the HARQ process index is mapped one by one to the bits from high to low in the bitmap in ascending order from small to large. Then the 3-bit bitmap included in the first downlink control information is as shown in Table 1.

Table 1

For the second mapping method: the HARQ process index is mapped one by one to the bits from low to high in the bitmap in ascending order, then the 3-bit bitmap included in the first downlink control information is as shown in Table 2.

table 3

Embodiment 2: The first downlink control information is used to determine HARQ-ACK information corresponding to the first type of uplink HARQ process and/or the second type of uplink HARQ process of the terminal device. In other words, regardless of whether the uplink HARQ process corresponds to the first mode or the second mode, the first downlink control information can be used to determine the HARQ-ACK information corresponding to the uplink HARQ process; or, the network device only indicates to the terminal device the HARQ-ACK information corresponding to the second mode. The HARQ-ACK information corresponding to the uplink HARQ process of the first mode does not feed back the HARQ-ACK information corresponding to the uplink HARQ process of the first mode; or, the network device only indicates to the terminal device the HARQ-ACK information corresponding to the uplink HARQ process of the first mode. ACK information does not feed back HARQ-ACK information corresponding to the uplink HARQ process corresponding to the second mode.

In this case, S220 can include:

According to the first downlink control information, HARQ-ACK information corresponding to at least one first-type uplink HARQ process and/or HARQ-ACK information corresponding to at least one second-type uplink HARQ process of the terminal device is determined.

In some embodiments, the first downlink control information indicates HARQ-ACK information corresponding to the uplink HARQ process of the terminal device in a bitmap manner.

In some embodiments, the first downlink control information includes N bits, corresponding to N uplink HARQ processes of the terminal device, where each bit corresponds to an uplink HARQ process, and the value of each bit is used to indicate the corresponding uplink HARQ process. HARQ-ACK information corresponding to the HARQ process.

In a specific embodiment, the N uplink HARQ processes of the terminal device include M second type uplink HARQ processes, then the N bits include M bits, and the M bits correspond to the M second type uplink HARQ processes. process, the M bits are used to indicate the HARQ-ACK information corresponding to the M second type uplink HARQ processes.

As a mapping method, each bit corresponds to an uplink HARQ process, including:

N uplink HARQ processes are mapped one by one to N bits in ascending order from small to large HARQ process indexes in bit order from high to low.

That is, the highest bit among the N bits corresponds to the uplink HARQ process with the smallest HARQ process index, and the lowest bit among the N bits corresponds to the uplink HARQ process with the largest HARQ process index.

As another mapping method, each bit corresponds to an uplink HARQ process, including:

N uplink HARQ processes are mapped one by one to N bits in ascending order from small to large HARQ process indexes in bit order from low to high.

That is, the highest bit among the N bits corresponds to the uplink HARQ process with the largest HARQ process index, and the lowest bit among the N bits corresponds to the uplink HARQ process with the smallest HARQ process index.

In some embodiments of the present application, the HARQ-ACK information corresponding to the first type of uplink HARQ process and the HARQ-ACK information corresponding to the second type of uplink HARQ process can be set in the same way, or they can be set in independent ways.

That is, the HARQ-ACK information corresponding to the first type of uplink HARQ process and the HARQ-ACK information corresponding to the second type of uplink HARQ process may be set in the same way, or they may be different.

In some embodiments, the selection of bits corresponding to the uplink HARQ process among the N bits can be set according to the mode corresponding to the uplink HARQ process and/or whether the uplink HARQ process corresponds to uplink transmission (that is, whether the uplink HARQ process is used for uplink transmission). value.

In some embodiments, for the second type of uplink HARQ process, the method described in Embodiment 1 can be used to set the value of the bit corresponding to the second type of uplink HARQ process.

In some embodiments, for the first type of uplink HARQ process, the value of the bit corresponding to the first type of uplink HARQ process can be set in a similar manner to the second type of uplink HARQ process, or the corresponding bit can also be set to indicate a specific Value, such as reserved value or NACK, etc.

In a specific implementation manner, regardless of whether the first type of uplink HARQ process corresponds to uplink transmission, the value of the corresponding bit indicates a reserved value or NACK. For example, if the value is 1, it means ACK, and the value of the corresponding bit is 0, or in other words, the value 0 means a reserved value or NACK. Or, if the value is 0, it means ACK, then the value of the corresponding bit is 1, or in other words, the value 1 means a reserved value or NACK. In this implementation, since the value of the bit corresponding to the first type of uplink HARQ process always indicates a reserved value or NACK, it can also be considered that the network device does not feedback HARQ-ACK information corresponding to the uplink HARQ process of the first mode.

In other specific implementation manners, depending on whether the first type of uplink HARQ process corresponds to uplink transmission, the corresponding bit indicates a corresponding value.

For example, for the uplink HARQ process corresponding to the uplink transmission in the first type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission.

Optionally, when the transport block in the first type of uplink HARQ process is demodulated correctly, the value of the corresponding bit indicates ACK; otherwise, the value of the corresponding bit is reserved or indicates NACK. For example, if the value is 1 indicating ACK, the corresponding bit has a value of 0, or if the value is 0 indicating ACK, the corresponding bit has a value of 1.

For another example, for an uplink HARQ process in the first type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reservation value or a negative acknowledgment NACK. For example, if the value is 1, it means ACK, and the value of the corresponding bit is 0, or in other words, the value 0 means a reserved value or NACK. Or, if the value is 0, it means ACK, then the value of the corresponding bit is 1, or in other words, the value 1 means a reserved value or NACK.

In some embodiments, the first downlink control information is used to indicate the HARQ-ACK information corresponding to the uplink HARQ process in a bitmap manner, including at least one of the following:

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the corresponding bit in the M bits of the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For the uplink HARQ process in the second type of uplink HARQ process that does not correspond to uplink transmission, the corresponding bits in the M bits of the uplink HARQ process indicate the reservation value or NACK;

The other bits among the N bits except the M bits indicate the reserved value or NACK.

In other embodiments, the first downlink control information is used to indicate HARQ-ACK information corresponding to the uplink HARQ process through bit mapping, including at least one of the following:

For the uplink HARQ process corresponding to uplink transmission in the first type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For the uplink HARQ process in the first type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates the reserved value or NACK;

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For the uplink HARQ process in the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates the reservation value or NACK.

Among them, the uplink HARQ process corresponding to uplink transmission and the uplink HARQ process not corresponding to uplink transmission refer to the relevant description in Embodiment 1. For the sake of simplicity, they will not be described again here.

For example, if the terminal device includes 8 uplink HARQ processes (HARQ process 0 ~ HARQ process 7) in a cell, that is, the value of N is 8, the network device receives the uplink HARQ process 3 and HARQ process 3 from the terminal device in the first cell. The two PUSCHs transmitted by uplink HARQ process 4, where the value 1 represents ACK, the two uplink HARQ processes are both configured as HARQ mode B (that is, corresponding to the first mode) and the demodulation results of the two PUSCHs are both for ACK.

In some implementations, for the second type of uplink HARQ process that does not correspond to uplink transmission, the value of the corresponding bit is set to a reserved value or NACK, that is, 0. For the first type of uplink HARQ process, regardless of whether it corresponds to uplink transmission, The values of the corresponding bits are all set to reserved values or NACK, that is, 0. Then, since the uplink HARQ processes 0 to 2 and the uplink HARQ processes 5 to 7 all correspond to the second mode and do not correspond to uplink transmission, the value of their corresponding bits is 0, and the uplink HARQ processes 3 and 4 correspond to the first mode, and their corresponding bits The value of is also 0. Then the 8-bit bitmap included in the first downlink control information can be as shown in Table 3:

table 3

In some implementations, for the second type of uplink HARQ process that does not correspond to uplink transmission, the value of the corresponding bit is set to a reserved value or NACK, that is, 0. For the first type of uplink HARQ process that corresponds to uplink transmission, the corresponding bit value The value of the bit is set based on the demodulation result of the uplink transmission. Then, since uplink HARQ processes 0 to 2 and uplink HARQ processes 5 to 7 both correspond to the second mode and do not correspond to uplink transmission, the value of their corresponding bits is 0, and uplink HARQ processes 3 and 4 correspond to the first mode and correspond to uplink transmission. , the value of the corresponding bit is determined based on the demodulation result, that is, 1. Then the 8-bit bitmap included in the first downlink control information can be as shown in Table 4:

Table 4

It should be understood that Table 3 and Table 4 only take the example of one-to-one mapping of the HARQ process index from small to large in ascending order to the bits from low to high in the bitmap. In other embodiments, other mapping relationships can also be used. Applications are not limited to this.

In some embodiments, when the first configuration information is carried through RRC signaling, the first downlink control information includes M bits, and the first downlink control information indicates the M second bits through bit mapping. HARQ-ACK information corresponding to at least one uplink HARQ process in the class uplink HARQ process.

Optionally, when the first configuration information is carried through RRC signaling, the terminal device can learn the modes corresponding to the N uplink HARQ processes through RRC signaling. That is to say, the terminal device can learn the N uplink HARQ processes in advance. Which M uplink HARQ processes in are the second type uplink HARQ processes. Correspondingly, the first downlink control information may only include M bits corresponding to the M second type uplink HARQ processes, where each bit is used HARQ-ACK information corresponding to a type 2 uplink HARQ process. In this case, the network device may only feed back HARQ-ACK information corresponding to the second type of uplink HARQ process, for example, only feed back HARQ-ACK information corresponding to the second type of uplink HARQ process corresponding to uplink transmission.

In some embodiments, when the first configuration information is carried through downlink control information, the first downlink control information includes N bits, and the first downlink control information indicates the N uplink HARQ through bit mapping. HARQ-ACK information corresponding to at least one uplink HARQ process in the process.

Optionally, in the case where the first configuration information is carried through downlink control information, the terminal device can learn the mode corresponding to the target uplink HARQ process through the downlink control information. That is to say, since the mode corresponding to the target uplink HARQ process is dynamic signaling indicated, the terminal device cannot know in advance which of the N uplink HARQ processes is the second type of uplink HARQ process. Correspondingly, the first downlink control information needs to include information corresponding to the N uplink HARQ processes. N bits, each bit is used to indicate the HARQ-ACK information corresponding to an uplink HARQ process. In this case, the network device may indicate the HARQ-ACK information corresponding to at least one uplink HARQ process among the N uplink HARQ processes, for example, feed back the HARQ-ACK information corresponding to the uplink HARQ process corresponding to the uplink transmission. Or, in this case, if the network device only feeds back HARQ-ACK information corresponding to the second type of uplink HARQ process, then the bits corresponding to the first type of uplink HARQ process among the N bits indicate a reserved value or a negative acknowledgment NACK.

In some embodiments, when the first configuration information is carried through RRC signaling and downlink control information, the first downlink control information includes N bits, and the first downlink control information is indicated by bit mapping. HARQ-ACK information corresponding to at least one uplink HARQ process among the N uplink HARQ processes.

Optionally, in the case where the first configuration information is carried through RRC signaling and downlink control information, the terminal device can learn the mode corresponding to the N uplink HARQ processes or the target uplink HARQ process. That is to say, since the target uplink HARQ process corresponds to The mode is indicated by dynamic signaling. The terminal device cannot know in advance which of the N uplink HARQ processes is the second type of uplink HARQ process. Correspondingly, the first downlink control information needs to include the N bits corresponding to N uplink HARQ processes, where each bit is used to indicate HARQ-ACK information corresponding to an uplink HARQ process. In this case, the network device may indicate the HARQ-ACK information corresponding to at least one uplink HARQ process among the N uplink HARQ processes, for example, feed back the HARQ-ACK information corresponding to the uplink HARQ process corresponding to the uplink transmission. Or, in this case, if the network device only feeds back HARQ-ACK information corresponding to the second type of uplink HARQ process, then the bits corresponding to the first type of uplink HARQ process among the N bits indicate a reserved value or a negative acknowledgment NACK.

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the first downlink control information is not used to indicate the HARQ-ACK information corresponding to at least one uplink HARQ process of the terminal device; or,

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the terminal device does not expect to receive the first downlink control information indicating HARQ-ACK information according to the bit mapping method; or,

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the first downlink control information is used to indicate at least one uplink of the N first-type uplink HARQ processes in a bit mapping manner. HARQ-ACK information corresponding to the HARQ process.

Correspondingly, when the N uplink HARQ processes are all first-type uplink HARQ processes, the network device does not send the first downlink control information indicating HARQ-ACK information according to the bit mapping method to the terminal device, or , the first downlink control information is used to indicate the HARQ-ACK information corresponding to at least one uplink HARQ process among the N first-type uplink HARQ processes through bit mapping. Optionally, the at least one uplink HARQ process It may include an uplink HARQ process corresponding to uplink transmission.

In some embodiments of the present application, the CRC corresponding to the first downlink control information is scrambled by PUR-RNTI, and the first downlink control information is associated with uplink transmission through PUR resources using the target uplink HARQ process. , wherein the target uplink HARQ process is a first type uplink HARQ process.

In some embodiments, the first downlink control information includes a first indication field, and the first indication field is used to indicate ACK or fallback mode. That is to say, regardless of whether the uplink HARQ process used for uplink transmission through PUR corresponds to the first mode or the second mode, the first indication field in the associated first downlink control information is interpreted in the same way.

Optionally, the first indication field is 1 bit. As an example, a value of 1 for this 1 bit indicates ACK, and a value of 0 indicates fallback mode. As another example, a value of 0 for this 1 bit indicates ACK, and a value of 1 indicates fallback mode.

Optionally, the first indication field indicates that ACK indicates that at least one uplink transmission of the terminal device is successfully received.

Optionally, the first indication field indicates that the fallback mode indicates that at least one uplink transmission of the terminal device has not been successfully received.

Wherein, the at least one uplink transmission is transmitted through PUR resources, and the uplink HARQ process used to transmit the at least one uplink transmission is a first type uplink HARQ process.

As an example, if the terminal device receives the first indication field indication ACK in the first downlink control information, it means that the transport block in the uplink transmission currently using the PUR resource is successfully received. In this case, the terminal device does not need to retransmit the transmission block. Alternatively, if the terminal device receives the first indication field in the first downlink control information indicating the fallback mode, it means that the transport block in the uplink transmission currently using the PUR resource has not been successfully received. In this case, the terminal device needs to retransmit the transmission block.

In some other embodiments, the first downlink control information includes a first indication field, and the first indication field is used to indicate a reservation value or a fallback mode.

Optionally, the first indication field indicates that the reservation value indicates that at least one uplink transmission of the terminal device is successfully received.

Optionally, the first indication field is 1 bit. As an example, the value of this 1 bit is 0 to indicate the reserved value, and the value of this 1 bit is 1 to indicate the fallback mode. As another example, a value of 1 for this 1 bit indicates a reserved value, and a value of 0 indicates fallback mode.

As an example, if the terminal device receives the first indication field in the first downlink control information indicating the reservation value, then the information is ignored. Alternatively, if the terminal device receives the first indication field in the first downlink control information indicating the fallback mode, it means that the transport block in the uplink transmission currently using the PUR resource has not been successfully received. In this case, the terminal device needs to retransmit the transmission block.

Optionally, the first indication field included in the first downlink control information can be reused to indicate other information; or, the first indication field included in the first downlink control information is set to a reserved value. For example set to 0.

Optionally, when the uplink HARQ process used for uplink transmission through PUR resources corresponds to the first mode, its associated first downlink control information does not include the first indication field.

S201. The network device determines the first downlink control information.

For example, the network device obtains HARQ-ACK information corresponding to at least one uplink HARQ process of the terminal device, and determines the first downlink control information based on the HARQ-ACK feedback information corresponding to the at least one uplink HARQ process.

For another example, the network device obtains the HARQ-ACK information corresponding to at least one type 2 uplink HARQ process of the terminal device, and determines the first downlink control information based on the HARQ-ACK feedback information corresponding to the at least one type 2 uplink HARQ process.

For another example, the network device obtains HARQ-ACK information corresponding to at least one first-type uplink HARQ process of the terminal device, and determines the first downlink control information based on the HARQ-ACK feedback information corresponding to the at least one first-type uplink HARQ process.

Optionally, the network device obtains HARQ-ACK information corresponding to at least one uplink HARQ process of the terminal device, which may include:

Determine the HARQ-ACK information corresponding to the uplink HARQ process according to the demodulation result of the uplink transmission corresponding to the uplink HARQ process; and/or

The HARQ-ACK information corresponding to the uplink HARQ process is determined according to the mode corresponding to the uplink HARQ process.

For example, for the first type of uplink HARQ process, the corresponding HARQ-ACK information may be a specific value, such as a reserved value or NACK.

For another example, for the first type of uplink HARQ process corresponding to uplink transmission, the corresponding HARQ-ACK information may be determined based on the demodulation result of the corresponding uplink transmission.

For another example, for the first type of uplink HARQ process that does not correspond to uplink transmission, the corresponding HARQ-ACK information may be a specific value, such as a reserved value or NACK.

For another example, for the second type of uplink HARQ process corresponding to uplink transmission, the corresponding HARQ-ACK information may be determined based on the demodulation result of the corresponding uplink transmission.

For another example, for the second type of uplink HARQ process that does not correspond to uplink transmission, the corresponding HARQ-ACK information may be a specific value, such as a reserved value or NACK.

It should be understood that in the embodiment of the present application, the network device sets the bitmap corresponding to the first configuration information and the first downlink control information and the terminal device interprets the bitmap corresponding to the first configuration information and the first downlink control. are mutually corresponding, thus enabling network equipment and terminal equipment to have a consistent understanding of the HARQ-ACK information corresponding to the uplink HARQ process, ensuring that terminal equipment and network equipment have a consistent understanding of the codebook, and improving communication reliability and efficiency.

To sum up, in the embodiment of the present application, when there is an uplink HARQ process corresponding to the first mode in the uplink HARQ process of the terminal device, the network device can indicate to the terminal device through the downlink control information the HARQ-ACK corresponding to at least one uplink HARQ process. Information, for example, the network device may indicate only the HARQ-ACK information corresponding to the uplink HARQ process corresponding to the second mode through the downlink control information, or may also indicate the uplink HARQ process corresponding to the first mode and/or the uplink HARQ process corresponding to the second mode through the downlink control information. HARQ-ACK information corresponding to the uplink HARQ process of the mode.

For example, the downlink control information may include N bits, and the N bits correspond to N uplink HARQ processes of the terminal device one-to-one.

For another example, the downlink control information may include M bits, and the M bits correspond one-to-one to M uplink HARQ processes of the terminal device, where the M uplink HARQ processes do not include the uplink HARQ process corresponding to the first mode.

Figure 3 is a schematic interaction diagram of a wireless communication method 300 according to an embodiment of the present application. As shown in Figure 3, the method 300 includes at least part of the following content:

S310, the network device can send the second configuration information to the terminal device;

Correspondingly, the terminal device receives the second configuration information sent by the network device.

Wherein, the second configuration information is used to configure a mode corresponding to at least one downlink HARQ process of the terminal device.

In some embodiments, the X downlink HARQ processes of the terminal device include at least one first type downlink HARQ process and/or at least one second type downlink HARQ process, where the first type downlink HARQ process corresponds to the first mode, The downlink HARQ-like process corresponds to the second mode, where X is a positive integer.

In some embodiments, the X downlink HARQ processes of the terminal device include downlink HARQ processes of the terminal device on one cell. In a specific embodiment, the X downlink HARQ processes of the terminal device include all downlink HARQ processes of the terminal device in a cell.

In some embodiments, the X downlink HARQ processes of the terminal device include downlink HARQ processes of the terminal device on multiple cells. Optionally, the multiple cells are cells in a Physical Uplink Control Channel (PUCCH) cell group, and/or the multiple cells belong to one cell group. In a specific embodiment, the X downlink HARQ processes of the terminal device include all downlink HARQ processes of the terminal device on all cells in a cell group.

In some embodiments, the X downlink HARQ processes of the terminal device are pre-configured, or may be configured by the network device, which is not limited in this application. For example, the protocol stipulates that the terminal device supports X downlink HARQ processes.

In some embodiments, the first mode is a HARQ-ACK feedback-disabled mode.

In some embodiments, the second mode is an enabled HARQ-ACK feedback mode.

In some embodiments, the first type of downlink HARQ process corresponds to the first mode, including:

The first type of downlink HARQ process corresponds to disabling HARQ-ACK feedback mode; or

The first type of downlink HARQ process is configured to disable the HARQ-ACK feedback mode, or in other words, the first type of downlink HARQ process is configured to be disabled (Disabled).

In some embodiments, the second type of downlink HARQ process corresponds to the second mode, including:

The second type of downlink HARQ process corresponds to enabling HARQ-ACK feedback mode; or

The second type of downlink HARQ process is configured to enable the HARQ-ACK feedback mode, or in other words, the second type of downlink HARQ process is configured as enabled (Enabled).

In some embodiments of the present application, the method 300 further includes:

The terminal device reports second capability information to the network device. The second capability information is used to indicate that the terminal device supports the downlink HARQ process of the terminal device to be configured in the first mode. In other words, the terminal The device supports the downlink HARQ process in the first mode.

It should be understood that the second configuration information can be carried through any downlink signaling, which may include, but is not limited to, RRC signaling and/or downlink control information.

In some embodiments, the second configuration information may be an explicit or implicit mode corresponding to at least one downlink HARQ process of the terminal device. Optionally, the second configuration information is used to indicate that the downlink HARQ process corresponds to the first mode or the second mode, or to indicate whether the downlink HARQ process corresponds to the first mode.

For example, the second configuration information is used to indicate that the downlink HARQ process is configured to disable the HARQ-ACK feedback mode or enable the HARQ-ACK feedback mode.

For another example, the second configuration information is used to indicate whether the downlink HARQ process is configured to disable the HARQ-ACK feedback mode.

In some embodiments, the second configuration information is used to indicate modes corresponding to X downlink HARQ processes of the terminal device.

Optionally, when the second configuration information is carried through RRC signaling, the second configuration information is used to indicate modes corresponding to the X downlink HARQ processes of the terminal device.

In some embodiments, the second configuration information indicates modes corresponding to the X downlink HARQ processes through bit mapping.

Optionally, when the second configuration information is carried through RRC signaling, the second configuration information indicates modes corresponding to the X downlink HARQ processes of the terminal device in a bit mapping manner.

In some embodiments, the second configuration information includes X bits, corresponding to X downlink HARQ processes of the terminal device, where each bit corresponds to a downlink HARQ process, and each bit is used to indicate the model.

For example, a bit value of 1 indicates that the corresponding downlink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

For another example, a bit value of 0 indicates that the corresponding downlink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

It should be understood that this application does not specifically limit the mapping relationship between the above X bits and X downlink HARQ processes, as long as it is ensured that different bits correspond to different downlink HARQ processes.

As a mapping method, each bit corresponds to a downlink HARQ process, which can include:

The X downlink HARQ processes are mapped one by one to the X bits in the second configuration information in an ascending order from small to large HARQ process indexes in a bit order from high to low.

As another mapping method, each bit corresponds to a downlink HARQ process, which can include:

The X downlink HARQ processes are mapped one by one to the X bits in the second configuration information in an ascending order from small to large HARQ process indexes in a bit order from low to high.

In other embodiments, the second configuration information is used to indicate a mode corresponding to the target downlink HARQ process, and the target downlink HARQ process includes at least one HARQ process used for downlink transmission.

Optionally, the at least one downlink transmission may be a downlink transmission scheduled by the network device, or may be a scheduling-free downlink transmission, such as Semi-Persistent Scheduling (SPS) transmission.

Optionally, when the second configuration information is carried through downlink control information, the target downlink HARQ process includes a downlink HARQ process used for downlink transmission scheduled by the downlink control information.

In some embodiments, the second configuration information is used to indicate the mode corresponding to the target downlink HARQ process, where,

When the downlink transmission corresponding to the target downlink HARQ process is downlink control information scheduling, the second configuration information is carried in the downlink control information; or

When the downlink transmission corresponding to the target downlink HARQ process uses SPS resources, the second configuration information is carried in RRC signaling.

That is to say, for downlink transmission scheduled by downlink control information, the network device can indicate the mode corresponding to the downlink HARQ process used in the downlink transmission through the downlink control information. For downlink transmission without scheduling, the network device can indicate through RRC signaling The mode corresponding to the downlink HARQ process used for this downlink transmission.

In some embodiments, the second configuration information is used to indicate the mode corresponding to the target downlink HARQ process. When the downlink transmission corresponding to the target downlink HARQ process uses SPS resources, the second configuration information is carried in the downlink control information. , wherein the downlink control information is used to activate the SPS resource.

That is to say, in some cases, for scheduling-free downlink transmission (such as SPS transmission), if the network device needs to activate SPS resources through downlink control information, the network device can also indicate the downlink transmission requirements through the downlink control information. The mode corresponding to the downlink HARQ process used.

It can be understood that, for scheduling-free downlink transmission (such as SPS transmission), its associated downlink HARQ process number may be predefined, or may be configured by the network device, which is not limited in this application. For example, when the network device configures the SPS resource for the terminal device, it also configures the downlink HARQ process number associated with the SPS resource. For another example, the network device configures SPS resources for the terminal device, and the terminal device calculates the downlink HARQ process number associated with the SPS resource based on the time domain location information of the SPS resource.

In some embodiments, the target downlink HARQ process includes one downlink HARQ process, then the second configuration information may include 1 bit used to indicate the mode corresponding to the one downlink HARQ process. For example, a bit value of 1 indicates that the corresponding downlink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode. For another example, a bit value of 0 indicates that the corresponding downlink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

In some embodiments, the target downlink HARQ process includes multiple downlink HARQ processes, and the second configuration information is used to indicate the modes corresponding to the multiple downlink HARQ processes, wherein the modes corresponding to the multiple downlink HARQ processes are the same. .

In this case, the second configuration information may include 1 bit for indicating the modes corresponding to the multiple downlink HARQ processes. For example, a bit value of 1 indicates that the corresponding downlink HARQ process corresponds to the first mode, otherwise, it corresponds to the second mode, or does not correspond to the first mode. For another example, a bit value of 0 indicates that the corresponding downlink HARQ process corresponds to the first mode, otherwise, it corresponds to the second mode, or does not correspond to the first mode.

In some other embodiments, the target downlink HARQ process includes multiple downlink HARQ processes, and the second configuration information is used to indicate modes corresponding to the multiple downlink HARQ processes. Optionally, the second configuration information indicates modes corresponding to the plurality of downlink HARQ processes in a bitmap manner.

As an example and not a limitation, the target downlink HARQ process includes Y downlink HARQ processes, then the second configuration information includes Y bits, each bit corresponds to one downlink HARQ process among the Y downlink HARQ processes, and the value of the bit is used Indicates the mode corresponding to the corresponding downlink HARQ process. For the mapping relationship between Y bits and Y downlink HARQ processes, refer to the relevant descriptions of the foregoing embodiments, which will not be described again here. Y is an integer greater than 1. Optionally, the Y downlink HARQ processes are the maximum number of downlink HARQ processes that can be scheduled for one downlink control information; or, the Y downlink HARQ processes are the number of downlink HARQ processes that are actually scheduled for transmission of one downlink control information. As an example, a bit value of 1 indicates that the corresponding downlink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode. As another example, a bit value of 0 indicates that the corresponding downlink HARQ process corresponds to the first mode; otherwise, it corresponds to the second mode, or in other words, does not correspond to the first mode.

Optionally, the second configuration information in method 300 and the first configuration information in method 200 may be sent through the same signaling, or may be sent through different signaling, which is not limited in this application.

In some embodiments, the mode corresponding to the downlink HARQ process and/or whether the downlink HARQ process corresponds to downlink transmission may be used to determine whether to feed back the HARQ-ACK information corresponding to the downlink HARQ process. For specific implementation, refer to the relevant implementation of the method for determining the HARQ-ACK information corresponding to the uplink HARQ process in method 200. For the sake of simplicity, details will not be described here.

For example, when the downlink HARQ process corresponds to the first mode, the HARQ-ACK information corresponding to the downlink HARQ process is not fed back.

For another example, when the downlink HARQ process corresponds to downlink transmission (indifferent mode), the HARQ-ACK information corresponding to the downlink HARQ process is fed back, for example, the HARQ-ACK information corresponding to the downlink HARQ process is set according to the demodulation result of the downlink transmission.

For another example, when the downlink HARQ process corresponds to the second mode and corresponds to downlink transmission, the HARQ-ACK information corresponding to the downlink HARQ process is fed back, for example, the HARQ-ACK information corresponding to the downlink HARQ process is set according to the demodulation result of the downlink transmission.

To sum up, in the embodiment of the present application, the network device can indicate to the terminal device the mode corresponding to at least one downlink HARQ process through the second configuration information. Correspondingly, the terminal device can determine the mode corresponding to the at least one downlink HARQ process based on the second configuration information. mode. Further, the terminal device can perform HARQ-ACK feedback according to the mode corresponding to the at least one downlink HARQ process and/or whether the at least one downlink HARQ process corresponds to downlink transmission. Correspondingly, the network device can perform HARQ-ACK feedback according to the mode corresponding to the at least one downlink HARQ process. mode and/or whether the at least one downlink HARQ process corresponds to downlink transmission, interpret the HARQ-ACK feedback of the terminal device, so as to realize the connection between the downlink HARQ process to be fed back HARQ-ACK information and its corresponding HARQ-ACK information. Consistent understanding of the relationships.

The method embodiments of the present application are described in detail above with reference to Figures 2 to 3. The device embodiments of the present application are described in detail below with reference to Figures 4 to 8. It should be understood that the device embodiments and the method embodiments correspond to each other, and are similar to The description may refer to the method embodiments.

Figure 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in Figure 4, the terminal device 400 includes:

Communication unit 410, configured to receive the first downlink control information sent by the network device;

The processing unit 420 is configured to determine the hybrid automatic retransmission response HARQ-ACK information corresponding to at least one uplink hybrid automatic retransmission HARQ process of the terminal device according to the first downlink control information, wherein the terminal The N uplink HARQ processes of the device include at least one first-type uplink HARQ process. The first-type uplink HARQ process corresponds to the first mode, and N is a positive integer.

The first type of uplink HARQ process corresponds to HARQ mode B; or

The first type of uplink HARQ process is configured as HARQ mode B; or

The first type of uplink HARQ process is configured to disable HARQ-ACK feedback mode.

In some embodiments, the N uplink HARQ processes of the terminal device include M second type uplink HARQ processes, and the first downlink control information is used to indicate the corresponding M second type uplink HARQ processes. HARQ-ACK information, wherein the second type of uplink HARQ process corresponds to the second mode, and M is a positive integer.

The second type of uplink HARQ process corresponds to HARQ mode A; or

The second type of uplink HARQ process is configured as HARQ mode A; or

The second type of uplink HARQ process is configured to enable HARQ-ACK feedback mode.

In some embodiments, the first downlink control information includes M bits, each bit corresponds to a second type uplink HARQ process, and the first downlink control information is used to indicate the second type of HARQ process through bit mapping. HARQ-ACK information corresponding to the upstream HARQ process.

In some embodiments, each bit corresponds to a second type uplink HARQ process, including:

The M second type uplink HARQ processes are mapped one by one to the M bits in ascending order from small to large HARQ process indexes in bit order from high to low; or,

The M second type uplink HARQ processes are mapped one by one to the M bits in ascending order from small to large HARQ process indexes in bit order from low to high.

In some embodiments, the first downlink control information is used to indicate the HARQ-ACK information corresponding to the second type of uplink HARQ process through bit mapping, including:

For the uplink HARQ process of the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or a negative acknowledgment NACK.

In some embodiments, the first downlink control information includes N bits, each bit corresponding to an uplink HARQ process, wherein M bits among the N bits correspond to M second type uplink HARQ processes, The first downlink control information is used to indicate HARQ-ACK information corresponding to the uplink HARQ process through bit mapping.

In some embodiments, each bit corresponds to an uplink HARQ process, including:

The N uplink HARQ processes are mapped one by one to the N bits in ascending order from small to large HARQ process indexes in bit order from high to low; or,

The N uplink HARQ processes are mapped one by one to the N bits in ascending order from small to large HARQ process indexes in bit order from low to high.

In some embodiments, the first downlink control information is used to indicate the HARQ-ACK information corresponding to the uplink HARQ process through bit mapping, including at least one of the following:

For an uplink HARQ process in the second type of uplink HARQ process that does not correspond to uplink transmission, the corresponding bits of the uplink HARQ process in the M bits indicate a reserved value or NACK;

The other bits among the N bits except the M bits indicate a reserved value or NACK.

For the uplink HARQ process of the first type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or NACK; for the uplink HARQ process of the second type of uplink HARQ process that corresponds to uplink transmission Process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For the uplink HARQ process of the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or NACK.

In some embodiments, when the first configuration information is carried through Radio Resource Control RRC signaling, the first downlink control information includes M bits, and the first downlink control information indicates the HARQ-ACK information corresponding to at least one uplink HARQ process among the M second type uplink HARQ processes; or,

In the case where the first configuration information is carried through downlink control information, the first downlink control information includes N bits, and the first downlink control information indicates at least one of the N uplink HARQ processes in a bit mapping manner. HARQ-ACK information corresponding to an uplink HARQ process; or,

In the case where the first configuration information is carried through RRC signaling and downlink control information, the first downlink control information includes N bits, and the first downlink control information indicates the N uplink HARQ through bit mapping. HARQ-ACK information corresponding to at least one uplink HARQ process in the process;

The first configuration information is used to determine a mode corresponding to at least one HARQ process of the terminal device.

In some embodiments, when the N uplink HARQ processes are all first type uplink HARQ processes, the first downlink control information is not used to indicate the HARQ corresponding to at least one uplink HARQ process of the terminal device. -ACK information; or,

In some embodiments, the cyclic redundancy check CRC corresponding to the first downlink control information is scrambled by the preconfigured uplink resource wireless network temporary identifier PUR-RNTI, and the first downlink control information is consistent with the use of the target uplink The uplink transmission performed by the HARQ process through the PUR resource has an associated relationship, wherein the target uplink HARQ process is a first-type uplink HARQ process.

In some embodiments, the first downlink control information includes a first indication field, and the first indication field is used to indicate ACK or fallback mode.

In some embodiments, the first downlink control information includes a first indication field, and the first indication field is used to indicate a reservation value or a fallback mode.

In some embodiments, the mode corresponding to at least one uplink HARQ process of the terminal device is determined based on the first configuration information sent by the network device.

In some embodiments, the first configuration information is carried through at least one of the following signaling: RRC signaling, downlink control information.

In some embodiments, the first configuration information is used to indicate modes corresponding to the N uplink HARQ processes.

In some embodiments, the first configuration information indicates modes corresponding to the N uplink HARQ processes in a bit mapping manner.

In some embodiments, when the first configuration information is carried through RRC signaling, the first configuration information indicates modes corresponding to the N uplink HARQ processes through bit mapping.

In some embodiments, the N uplink HARQ processes are uplink HARQ processes of the terminal device in one cell.

In some embodiments, the first configuration information is used to indicate a mode corresponding to a target uplink HARQ process, where the target uplink HARQ process includes at least one HARQ process used by the terminal device for uplink transmission.

In some embodiments, when the first configuration information is carried through downlink control information, the target uplink HARQ process includes a HARQ process used for uplink transmission scheduled by the downlink control information.

When the uplink transmission corresponding to the target uplink HARQ process is downlink control information scheduling, the first configuration information is carried in the downlink control information; or

In the case where the uplink transmission corresponding to the target uplink HARQ process uses the preconfigured uplink resource PUR, the first configuration information is carried in RRC signaling.

In some embodiments, the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate the mode corresponding to the multiple uplink HARQ processes, wherein the multiple uplink HARQ processes correspond to The pattern is the same.

In some embodiments, the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate modes corresponding to the multiple uplink HARQ processes.

In some embodiments, the first configuration information is used to indicate that the mode corresponding to the uplink HARQ process is HARQ mode A or HARQ mode B; or

The first configuration information is used to indicate whether the mode corresponding to the uplink HARQ process is HARQ mode B.

In some embodiments, the first configuration information is used to indicate that the uplink HARQ process is configured to disable HARQ-ACK feedback mode or enable HARQ-ACK feedback mode; or

The first configuration information is used to indicate whether the uplink HARQ process is configured to disable the HARQ-ACK feedback mode.

In some embodiments, the communication unit 410 is also used to:

Report first capability information to the network device, where the first capability information is used to indicate that the terminal device supports the uplink HARQ process of the terminal device being configured in the first mode.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The above-mentioned processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the terminal device 400 are respectively to implement the method shown in Figure 2 The corresponding process of the terminal equipment in 200 will not be repeated here for the sake of simplicity.

Figure 5 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 of Figure 5 includes:

The communication unit 510 is configured to send first downlink control information to the terminal device. The first downlink control information is used to determine the hybrid automatic request retransmission corresponding to at least one uplink hybrid automatic request retransmission HARQ process of the terminal device. Respond to HARQ-ACK information, wherein the N uplink HARQ processes of the terminal device include at least one first-type uplink HARQ process, the first-type uplink HARQ process corresponds to the first mode, and N is a positive integer.

The first type of uplink HARQ process corresponds to HARQ mode B; or

The first type of uplink HARQ process is configured as HARQ mode B; or

The second type of uplink HARQ process corresponds to HARQ mode A; or

The second type of uplink HARQ process is configured as HARQ mode A; or

In some embodiments, each bit corresponds to an uplink HARQ process, including:

For an uplink HARQ process in the first type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or NACK;

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the network device does not send the first downlink control information that uses bit mapping to indicate HARQ-ACK information to the terminal device; or,

In some embodiments, the communication unit 510 is also used to:

Send first configuration information to the terminal device, where the first configuration information is used to determine a mode corresponding to at least one uplink HARQ process of the terminal device.

In some embodiments, the communication unit 510 is also used to:

Receive first capability information reported by the terminal device, where the first capability information is used to indicate that the terminal device supports the uplink HARQ process of the terminal device being configured in the first mode.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the network device 500 are respectively to implement the method shown in Figure 2 The corresponding process of the network equipment in 200 will not be repeated here for the sake of simplicity.

Figure 6 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in Figure 6 includes a processor 610. The processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in Figure 5, the communication device 600 may further include a memory 620. The processor 610 can call and run the computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

Optionally, as shown in Figure 5, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, the communication device 600 may send information or data to other devices, or receive other devices. Information or data sent by the device.

Among them, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be a network device according to the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, details will not be repeated here. .

Optionally, the communication device 600 can be a mobile terminal/terminal device according to the embodiment of the present application, and the communication device 600 can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For the sake of simplicity, , which will not be described in detail here.

Figure 7 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in Figure 7 includes a processor 710. The processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 6 , the chip 700 may also include a memory 720 . The processor 710 can call and run the computer program from the memory 720 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

Optionally, the chip 700 may also include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

Optionally, the chip 700 may also include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, the details will not be described again.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiment of the present application. For the sake of simplicity, here No longer.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Figure 8 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 900 includes a terminal device 910 and a network device 920 .

Among them, the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be mentioned here. Repeat.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip and has signal processing capabilities. During the implementation process, each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available processors. Programmed logic devices, discrete gate or transistor logic devices, discrete hardware components. Each method, step and logical block diagram disclosed in the embodiment of this application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of illustration, but not limitation, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

It should be understood that the above memory is an exemplary but not restrictive description. For example, the memory in the embodiment of the present application can also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, memories in embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of simplicity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiment of the present application. , for the sake of brevity, will not be repeated here.

An embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, they are not included here. Again.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, no further details will be given here.

An embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of simplicity , which will not be described in detail here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the various methods implemented by the mobile terminal/terminal device in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

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

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

A method of wireless communication, characterized by including:

The terminal device receives the first downlink control information sent by the network device;

According to the first downlink control information, determine the hybrid automatic retransmission response HARQ-ACK information corresponding to at least one uplink hybrid automatic retransmission HARQ process of the terminal equipment, wherein the N uplink HARQ-ACK information of the terminal equipment The process includes at least one first type uplink HARQ process, the first type uplink HARQ process corresponds to the first mode, and N is a positive integer.
The method according to claim 1, characterized in that the first type of uplink HARQ process corresponds to the first mode, including:

The first type of uplink HARQ process corresponds to HARQ mode B; or

The first type of uplink HARQ process corresponds to disabling HARQ-ACK feedback mode; or

The first type of uplink HARQ process is configured as HARQ mode B; or

The first type of uplink HARQ process is configured to disable HARQ-ACK feedback mode.
The method according to claim 1 or 2, characterized in that the N uplink HARQ processes of the terminal device include M second type uplink HARQ processes, and the first downlink control information is used to indicate the M HARQ-ACK information corresponding to a second type of uplink HARQ process, wherein the second type of uplink HARQ process corresponds to the second mode, and M is a positive integer.
The method according to claim 3, characterized in that the second type of uplink HARQ process corresponds to the second mode, including:

The second type of uplink HARQ process corresponds to HARQ mode A; or

The second type of uplink HARQ process corresponds to enabling HARQ-ACK feedback mode; or

The second type of uplink HARQ process is configured as HARQ mode A; or

The second type of uplink HARQ process is configured to enable HARQ-ACK feedback mode.
The method according to claim 3 or 4, characterized in that the first downlink control information includes M bits, each bit corresponds to a second type uplink HARQ process, and the first downlink control information is used to The HARQ-ACK information corresponding to the second type of uplink HARQ process is indicated in a bit mapping manner.
The method according to claim 5, characterized in that each bit corresponds to a second type uplink HARQ process, including:

The M second type uplink HARQ processes are mapped one by one to the M bits in ascending order from small to large HARQ process indexes in bit order from high to low; or,

The M second type uplink HARQ processes are mapped one by one to the M bits in ascending order from small to large HARQ process indexes in bit order from low to high.
The method according to claim 5 or 6, characterized in that the first downlink control information is used to indicate HARQ-ACK information corresponding to the second type of uplink HARQ process through bit mapping, including:

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission; and/or,

For the uplink HARQ process of the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or a negative acknowledgment NACK.
The method according to claim 3 or 4, characterized in that the first downlink control information includes N bits, each bit corresponds to an uplink HARQ process, wherein M bits among the N bits correspond to M second type uplink HARQ processes, and the first downlink control information is used to indicate HARQ-ACK information corresponding to the uplink HARQ processes through bit mapping.
The method according to claim 8, characterized in that each bit corresponds to an uplink HARQ process, including:

The N uplink HARQ processes are mapped one by one to the N bits in ascending order from small to large HARQ process indexes in bit order from high to low; or,

The N uplink HARQ processes are mapped one by one to the N bits in ascending order from small to large HARQ process indexes in bit order from low to high.
The method according to claim 8 or 9, characterized in that the first downlink control information is used to indicate HARQ-ACK information corresponding to the uplink HARQ process through bit mapping, including at least one of the following:

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the corresponding bit in the M bits of the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For an uplink HARQ process in the second type of uplink HARQ process that does not correspond to uplink transmission, the corresponding bits of the uplink HARQ process in the M bits indicate a reserved value or NACK;

The other bits among the N bits except the M bits indicate a reserved value or NACK.
The method according to claim 8 or 9, characterized in that the first downlink control information is used to indicate the HARQ-ACK information corresponding to the uplink HARQ process through bit mapping, including at least one of the following:

For the uplink HARQ process corresponding to uplink transmission in the first type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For an uplink HARQ process in the first type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or NACK;

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For the uplink HARQ process of the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or NACK.
The method according to any one of claims 1-11, characterized in that when the first configuration information is carried through Radio Resource Control (RRC) signaling, the first downlink control information includes M bits, so The first downlink control information indicates HARQ-ACK information corresponding to at least one uplink HARQ process among the M second type uplink HARQ processes in a bit mapping manner; or,

In the case where the first configuration information is carried through downlink control information, the first downlink control information includes N bits, and the first downlink control information indicates at least one of the N uplink HARQ processes in a bit mapping manner. HARQ-ACK information corresponding to an uplink HARQ process; or,

In the case where the first configuration information is carried through RRC signaling and downlink control information, the first downlink control information includes N bits, and the first downlink control information indicates the N uplink HARQ through bit mapping. HARQ-ACK information corresponding to at least one uplink HARQ process in the process;

The first configuration information is used to determine a mode corresponding to at least one HARQ process of the terminal device.
The method according to claim 1 or 2, characterized in that, the method further includes:

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the first downlink control information is not used to indicate the HARQ-ACK information corresponding to at least one uplink HARQ process of the terminal device; or,

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the terminal device does not expect to receive the first downlink control information indicating HARQ-ACK information according to the bit mapping method; or,

In a case where the N uplink HARQ processes are all first-type uplink HARQ processes, the first downlink control information is used to indicate HARQ-ACK information corresponding to at least one uplink HARQ process among the N first-type uplink HARQ processes in a bit mapping manner.
The method according to claim 1 or 2, characterized in that the cyclic redundancy code check CRC corresponding to the first downlink control information is scrambled by the pre-configured uplink resource wireless network temporary identifier PUR-RNTI. The downlink control information is associated with the uplink transmission through the PUR resource using the target uplink HARQ process, where the target uplink HARQ process is a first type uplink HARQ process.
The method according to claim 14, characterized in that the first downlink control information includes a first indication field, and the first indication field is used to indicate ACK or fallback mode.
The method according to claim 14, characterized in that the first downlink control information includes a first indication field, and the first indication field is used to indicate a reservation value or a fallback mode.
The method according to any one of claims 1 to 16, characterized in that the mode corresponding to at least one uplink HARQ process of the terminal device is determined based on the first configuration information sent by the network device.
The method according to claim 17, characterized in that the first configuration information is carried through at least one of the following signaling: RRC signaling, downlink control information.
The method according to claim 17 or 18, characterized in that the first configuration information is used to indicate modes corresponding to the N uplink HARQ processes.
The method according to claim 19, wherein the first configuration information indicates modes corresponding to the N uplink HARQ processes in a bit mapping manner.
The method according to claim 20, characterized in that when the first configuration information is carried through RRC signaling, the first configuration information indicates modes corresponding to the N uplink HARQ processes in a bit mapping manner.
The method according to any one of claims 1-21, characterized in that the N uplink HARQ processes are the uplink HARQ processes of the terminal equipment in one cell.
The method according to claim 17 or 18, characterized in that the first configuration information is used to indicate a mode corresponding to a target uplink HARQ process, and the target uplink HARQ process includes at least one uplink transmission mode used by the terminal device. HARQ process.
The method of claim 23, wherein when the first configuration information is carried through downlink control information, the target uplink HARQ process includes a HARQ process used for uplink transmission scheduled by the downlink control information.
The method according to claim 17 or 18, characterized in that the first configuration information is used to indicate the mode corresponding to the target uplink HARQ process, wherein,

When the uplink transmission corresponding to the target uplink HARQ process is downlink control information scheduling, the first configuration information is carried in the downlink control information; or

In the case where the uplink transmission corresponding to the target uplink HARQ process uses the preconfigured uplink resource PUR, the first configuration information is carried in RRC signaling.
The method according to any one of claims 23-25, characterized in that the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate the corresponding uplink HARQ processes of the multiple uplink HARQ processes. mode, wherein the modes corresponding to the multiple uplink HARQ processes are the same.
The method according to any one of claims 23-25, characterized in that the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate that the multiple uplink HARQ processes respectively correspond to mode.
The method according to any one of claims 17-27, wherein the first configuration information is used to indicate that the mode corresponding to the uplink HARQ process is HARQ mode A or HARQ mode B; or

The first configuration information is used to indicate whether the mode corresponding to the uplink HARQ process is HARQ mode B.
The method according to any one of claims 17-27, characterized in that the first configuration information is used to indicate that the uplink HARQ process is configured to disable HARQ-ACK feedback mode or enable HARQ-ACK feedback mode. ;or

The first configuration information is used to indicate whether the uplink HARQ process is configured to disable the HARQ-ACK feedback mode.
The method according to any one of claims 1-29, characterized in that the method further includes:

The terminal device reports first capability information to the network device, where the first capability information is used to indicate that the terminal device supports the uplink HARQ process of the terminal device being configured in the first mode.
A method of wireless communication, characterized by including:

The network device sends first downlink control information to the terminal device, where the first downlink control information is used to determine a hybrid automatic retransmission response HARQ-ACK corresponding to at least one uplink hybrid automatic retransmission HARQ process of the terminal device. Information, wherein the N uplink HARQ processes of the terminal device include at least one first type uplink HARQ process, the first type uplink HARQ process corresponds to the first mode, and N is a positive integer.
The method according to claim 31, characterized in that the first type of uplink HARQ process corresponds to the first mode, including:

The first type of uplink HARQ process corresponds to HARQ mode B; or

The first type of uplink HARQ process corresponds to disabling HARQ-ACK feedback mode; or

The first type of uplink HARQ process is configured as HARQ mode B; or

The first type of uplink HARQ process is configured to disable HARQ-ACK feedback mode.
The method according to claim 31 or 32, characterized in that the N uplink HARQ processes of the terminal device include M second type uplink HARQ processes, and the first downlink control information is used to indicate the M HARQ-ACK information corresponding to a second type of uplink HARQ process, wherein the second type of uplink HARQ process corresponds to the second mode, and M is a positive integer.
The method according to claim 33, characterized in that the second type of uplink HARQ process corresponds to the second mode, including:

The second type of uplink HARQ process corresponds to HARQ mode A; or

The second type of uplink HARQ process corresponds to enabling HARQ-ACK feedback mode; or

The second type of uplink HARQ process is configured as HARQ mode A; or

The second type of uplink HARQ process is configured to enable HARQ-ACK feedback mode.
The method according to claim 33 or 34, characterized in that the first downlink control information includes M bits, each bit corresponds to a second type uplink HARQ process, and the first downlink control information is used to The HARQ-ACK information corresponding to the second type of uplink HARQ process is indicated in a bit mapping manner.
The method according to claim 35, characterized in that each bit corresponds to a second type uplink HARQ process, including:

The M second type uplink HARQ processes are mapped one by one to the M bits in ascending order from small to large HARQ process indexes in bit order from high to low; or,

The M second type uplink HARQ processes are mapped one by one to the M bits in ascending order from small to large HARQ process indexes in bit order from low to high.
The method according to claim 35 or 36, characterized in that the first downlink control information is used to indicate HARQ-ACK information corresponding to the second type of uplink HARQ process through bit mapping, including:

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission; and/or,

For the uplink HARQ process of the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or a negative acknowledgment NACK.
The method according to claim 33 or 34, characterized in that the first downlink control information includes N bits, each bit corresponds to an uplink HARQ process, wherein M bits among the N bits correspond to M second type uplink HARQ processes, and the first downlink control information is used to indicate HARQ-ACK information corresponding to the uplink HARQ processes through bit mapping.
The method according to claim 38, characterized in that each bit corresponds to an uplink HARQ process, including:

The N uplink HARQ processes are mapped one by one to the N bits in ascending order from small to large HARQ process indexes in bit order from high to low; or,

The N uplink HARQ processes are mapped one by one to the N bits in ascending order from small to large HARQ process indexes in bit order from low to high.
The method according to claim 38 or 39, characterized in that the first downlink control information is used to indicate the HARQ-ACK information corresponding to the uplink HARQ process through bit mapping, including at least one of the following:

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the corresponding bit in the M bits of the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For an uplink HARQ process in the second type of uplink HARQ process that does not correspond to uplink transmission, the corresponding bits of the uplink HARQ process in the M bits indicate a reserved value or NACK;

The other bits among the N bits except the M bits indicate a reserved value or NACK.
The method according to claim 38 or 39, characterized in that the first downlink control information is used to indicate the HARQ-ACK information corresponding to the uplink HARQ process through bit mapping, including at least one of the following:

For the uplink HARQ process corresponding to uplink transmission in the first type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For an uplink HARQ process in the first type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or NACK;

For the uplink HARQ process corresponding to uplink transmission in the second type of uplink HARQ process, the value of the bit corresponding to the uplink HARQ process is set according to the demodulation result of the corresponding uplink transmission;

For the uplink HARQ process of the second type of uplink HARQ process that does not correspond to uplink transmission, the bit corresponding to the uplink HARQ process indicates a reserved value or NACK.
The method according to any one of claims 31-41, characterized in that when the first configuration information is carried through radio resource control RRC signaling, the first downlink control information includes M bits, so The first downlink control information indicates HARQ-ACK information corresponding to at least one uplink HARQ process among the M second type uplink HARQ processes in a bit mapping manner; or,

In the case where the first configuration information is carried through downlink control information, the first downlink control information includes N bits, and the first downlink control information indicates at least one of the N uplink HARQ processes in a bit mapping manner. HARQ-ACK information corresponding to an uplink HARQ process; or,

In the case where the first configuration information is carried through RRC signaling and downlink control information, the first downlink control information includes N bits, and the first downlink control information indicates the N uplink HARQ through bit mapping. HARQ-ACK information corresponding to at least one uplink HARQ process in the process;

The first configuration information is used to determine a mode corresponding to at least one HARQ process of the terminal device.
The method according to claim 31 or 32, characterized in that, the method further includes:

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the first downlink control information is not used to indicate the HARQ-ACK information corresponding to at least one uplink HARQ process of the terminal device; or,

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the network device does not send the first downlink control information that uses bit mapping to indicate HARQ-ACK information to the terminal device; or,

In the case where the N uplink HARQ processes are all first-type uplink HARQ processes, the first downlink control information is used to indicate at least one uplink of the N first-type uplink HARQ processes in a bit mapping manner. HARQ-ACK information corresponding to the HARQ process.
The method according to claim 31 or 32, characterized in that the cyclic redundancy code check CRC corresponding to the first downlink control information is scrambled by preconfiguring the uplink resource wireless network temporary identifier PUR-RNTI, and the third The downlink control information is associated with the uplink transmission through the PUR resource using the target uplink HARQ process, where the target uplink HARQ process is a first type uplink HARQ process.
The method according to claim 44, characterized in that the first downlink control information includes a first indication field, and the first indication field is used to indicate ACK or fallback mode.
The method according to claim 44, characterized in that the first downlink control information includes a first indication field, and the first indication field is used to indicate a reservation value or a fallback mode.
The method according to any one of claims 31-46, characterized in that the method further includes:

The network device sends first configuration information to the terminal device, where the first configuration information is used to determine a mode corresponding to at least one uplink HARQ process of the terminal device.
The method according to claim 47, characterized in that the first configuration information is carried through at least one of the following signaling: RRC signaling, downlink control information.
The method according to claim 47 or 48, characterized in that the first configuration information is used to indicate modes corresponding to the N uplink HARQ processes.
The method according to claim 49, wherein the first configuration information indicates modes corresponding to the N uplink HARQ processes in a bit mapping manner.
The method according to claim 50, characterized in that when the first configuration information is carried through RRC signaling, the first configuration information indicates modes corresponding to the N uplink HARQ processes through bit mapping.
The method according to any one of claims 31 to 51, characterized in that the N uplink HARQ processes are uplink HARQ processes of the terminal equipment in one cell.
The method according to claim 47 or 48, characterized in that the first configuration information is used to indicate a mode corresponding to a target uplink HARQ process, and the target uplink HARQ process includes at least one uplink transmission mode used by the terminal device. HARQ process.
The method of claim 53, wherein when the first configuration information is carried through downlink control information, the target uplink HARQ process includes a HARQ process used for uplink transmission scheduled by the downlink control information.
The method according to claim 47 or 48, characterized in that the first configuration information is used to indicate the mode corresponding to the target uplink HARQ process, wherein,

When the uplink transmission corresponding to the target uplink HARQ process is downlink control information scheduling, the first configuration information is carried in the downlink control information; or

In the case where the uplink transmission corresponding to the target uplink HARQ process uses the preconfigured uplink resource PUR, the first configuration information is carried in RRC signaling.
The method according to any one of claims 53-55, characterized in that the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate the corresponding uplink HARQ processes of the multiple uplink HARQ processes. mode, wherein the modes corresponding to the multiple uplink HARQ processes are the same.
The method according to any one of claims 53-55, characterized in that the target uplink HARQ process includes multiple uplink HARQ processes, and the first configuration information is used to indicate that the multiple uplink HARQ processes respectively correspond to mode.
The method according to any one of claims 47-57, characterized in that the first configuration information is used to indicate that the mode corresponding to the uplink HARQ process is HARQ mode A or HARQ mode B; or

The first configuration information is used to indicate whether the mode corresponding to the uplink HARQ process is HARQ mode B.
The method according to any one of claims 47-57, characterized in that the first configuration information is used to indicate that the uplink HARQ process is configured to disable HARQ-ACK feedback mode or enable HARQ-ACK feedback mode. ;or

The first configuration information is used to indicate whether the uplink HARQ process is configured to disable the HARQ-ACK feedback mode.
The method according to any one of claims 31-59, characterized in that the method further includes:

The network device receives first capability information reported by the terminal device, where the first capability information is used to indicate that the terminal device supports the uplink HARQ process of the terminal device being configured in the first mode.
A terminal device, characterized by including:

A communication unit, configured to receive the first downlink control information sent by the network device;

A processing unit configured to determine, according to the first downlink control information, the hybrid automatic retransmission response HARQ-ACK information corresponding to at least one uplink hybrid automatic retransmission HARQ process of the terminal device, wherein the terminal device The N uplink HARQ processes include at least one first type uplink HARQ process, the first type uplink HARQ process corresponds to the first mode, and N is a positive integer.
A network device, characterized by including:

A communication unit configured to send first downlink control information to the terminal device, where the first downlink control information is used to determine a hybrid automatic request retransmission response corresponding to at least one uplink hybrid automatic request retransmission HARQ process of the terminal device HARQ-ACK information, wherein the N uplink HARQ processes of the terminal device include at least one first type uplink HARQ process, the first type uplink HARQ process corresponds to the first mode, and N is a positive integer.
A terminal device, characterized in that it includes: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 30. The method described in one item.
A network device, characterized in that it includes: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 31 to 60. The method described in one item.
A chip, characterized in that it includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 30, or as The method of any one of claims 31 to 60.
A computer-readable storage medium, characterized in that it is used to store a computer program, the computer program causing the computer to perform the method according to any one of claims 1 to 30, or any one of claims 31 to 60 method described in the item.
A computer program product, characterized by comprising computer program instructions, the computer program instructions causing the computer to perform the method as described in any one of claims 1 to 30, or as described in any one of claims 31 to 60 Methods.
A computer program, characterized in that the computer program causes the computer to perform the method according to any one of claims 1 to 30, or the method according to any one of claims 31 to 60.