# US 2021/0242976 A1 · Wireless communication method, terminal device and network device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242976 A1 - Document ID: US20210242976A1 - Status: Published application - Kind: A1 - Application number: 17/236,879 - Filed: 2021-04-21 - Published: 2021-08-05 - Earliest claimed: 2018-11-02 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Zhihua SHI; Wenhong CHEN; Yun FANG; Zhi ZHANG - Web page: https://patentgrep.com/patent/US20210242976A1 ## CPC - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1822: involving configuration of automatic repeat request [ARQ] with parallel processes - H04L 1/1896: {ARQ related signaling} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Provided are a wireless communication method, a terminal device and a network device. The method includes: a terminal device determining a hybrid automatic repeat request (HARQ) process; and according to the HARQ process, the terminal device receiving and/or sending a signal. In the implementations of the present disclosure, by means of determining an HARQ process, the terminal device may effectively differentiate an HARQ process applicable to each TRP among a plurality of TRPs when performing transmission by means of the plurality of TRPs, thereby preventing HARQ process ambiguity, and improving system performance. ## Claims ### Claim 1 A wireless communication method, comprising: determining, by a terminal device, a hybrid automatic repeat request (HARQ) process; and receiving and/or sending, by the terminal device, a signal according to the HARQ process. ### Claim 2 (depends on 1) The method of claim 1, wherein before determining, by the terminal device, the hybrid automatic repeat request (HARQ) process, the method further comprises: receiving, by the terminal device, configuration information sent by a network device; and determining, by the terminal device, a number of bits of a process number of the HARQ process according to the configuration information. ### Claim 3 (depends on 2) The method of claim 2, wherein the configuration information comprises: a number of physical downlink control channels (PDCCH) that the terminal device needs to detect at a same time, or, the configuration information comprises: the number of bits of the process number of the HARQ process. ### Claim 4 (depends on 1) The method of claim 1, wherein before determining, by the terminal device, the hybrid automatic repeat request (HARQ) process, the method further comprises: receiving, by the terminal device, configuration information sent by the network device; and determining, by the terminal device, whether a target domain exists and/or a number of bits corresponding to the target domain according to the configuration information, wherein the target domain is used for the terminal device to determine an HARQ process group. ### Claim 5 (depends on 4) The method of claim 4, wherein the configuration information comprises: a number of physical downlink control channels (PDCCH) that the terminal device needs to detect at a same time, or, the configuration information comprises: the number of bits corresponding to the target field, or, the configuration information comprises: a number of HARQ process groups. ### Claim 6 (depends on 2) The method of claim 2, wherein receiving, by the terminal device, the configuration information sent by the network device comprises: receiving, by the terminal device, the configuration information sent by the network device through at least one of downlink control information (DCI), radio resource control (RRC) signaling, and media access control (MAC) Control Element (CE). ### Claim 7 (depends on 1) The method of claim 1, wherein determining, by the terminal device, the hybrid automatic repeat request (HARQ) process comprises: determining, by the terminal device, an HARQ process group to which the HARQ process belongs; and determining, by the terminal device, the HARQ process according to the HARQ process group and a process number of the HARQ process, wherein determining, by the terminal device, the HARQ process group to which the HARQ process belongs comprises: determining, by the terminal device, the HARQ process group according to a search space (SS) of the terminal device. ### Claim 8 (depends on 7) The method of claim 7, wherein determining, by the terminal device, the HARQ process group according to the search space (SS) of the terminal device comprises: determining, by the terminal device, an HARQ process group corresponding to an SS group to which the SS belongs as the HARQ process group to which the HARQ process belongs, or, determining, by the terminal device, the HARQ process group according to the search space (SS) of the terminal device comprises: determining, by the terminal device, according to a control resource set (CORESET) corresponding to the SS, an HARQ process group corresponding to a CORESET group to which the CORESET belongs as the HARQ process group, or, determining, by the terminal device, the HARQ process group according to the search space (SS) of the terminal device comprises: determining, by the terminal device, an HARQ process group indicated in configuration information corresponding to the SS as the HARQ process group, or, determining, by the terminal device, the HARQ process group according to the search space (SS) of the terminal device comprises: determining, by the terminal device, an HARQ process group indicated in configuration information corresponding to a control resource set (CORESET) corresponding to the SS as the HARQ process group, wherein the configuration information is information configured based on a radio resource control (RRC) signaling and/or a media access control (MAC) Control Element (CE). ### Claim 9 (depends on 1) The method of claim 1, wherein determining, by the terminal device, the hybrid automatic repeat request (HARQ) process comprises: receiving, by the terminal device, indication information sent by a network device, wherein the indication information is used for indicating an HARQ process group to which the HARQ process belongs, wherein receiving, by the terminal device, the indication information sent by the network device comprises: receiving, by the terminal device, downlink control information (DCI) sent by the network device, wherein scrambling information and/or RNTI information of the DCI is used for indicating the HARQ process group to which the HARQ process belongs. ### Claim 10 A terminal device, comprising: a processor and a transceiver, wherein the processor is configured to determine a hybrid automatic repeat request (HARQ) process; the transceiver configured to receive and/or send a signal according to the HARQ process. ### Claim 11 (depends on 10) The terminal device of claim 10, wherein the transceiver is further configured to: receive configuration information sent by a network device, wherein the processor is specifically configured to: determine a number of bits of a process number of the HARQ process according to the configuration information, ### Claim 12 (depends on 11) The terminal device of claim 11, wherein the configuration information comprises: a number of physical downlink control channels (PDCCH) that the terminal device needs to detect at a same time, or, the configuration information comprises: the number of bits of the process number of the HARQ process. ### Claim 13 (depends on 10) The terminal device of claim 10, wherein before the processor determines the hybrid automatic repeat request (HARQ) process, the transceiver is further configured to: receive configuration information sent by network device, wherein the processor is specifically configured to: determine whether a target domain exists and/or a number of bits corresponding to the target domain according to the configuration information, wherein the target domain is used for the terminal device to determine an HARQ process group. ### Claim 14 (depends on 13) The terminal device of claim 13, wherein the configuration information comprises: a number of physical downlink control channels (PDCCH) that the terminal device needs to detect at a same time, or, the configuration information comprises: the number of bits corresponding to the target field, or, the configuration information comprises: a number of HARQ process groups. ### Claim 15 (depends on 11) The terminal device of claim 11, wherein the transceiver is specifically configured to: receive the configuration information sent by the network device through at least one of downlink control information (DCI), radio resource control (RRC) signaling, and media access control (MAC) Control Element (CE). ### Claim 16 (depends on 10) The terminal device of claim 10, wherein the processor is specifically configured to: determine an HARQ process group to which the HARQ process belongs; and determine the HARQ process according to the HARQ process group and a process number of the HARQ process, wherein the processor is more specifically configured to: determine the HARQ process group according to a search space (SS) of the terminal device. ### Claim 17 (depends on 16) The terminal device of claim 16, wherein the processor is more specifically configured to: determine an HARQ process group corresponding to an SS group to which the SS belongs as the HARQ process group to which the HARQ process belongs, or, the processor is more specifically configured to: determine, according to a control resource set (CORESET) corresponding to the SS, an HARQ process group corresponding to a CORESET group to which the CORESET belongs as the HARQ process group, or, the processor is more specifically configured to: determine an HARQ process group indicated in configuration information corresponding to the SS as the HARQ process group, or, the processor is more specifically configured to: determine an HARQ process group indicated in configuration information corresponding to the control resource set (CORESET) corresponding to the SS as the HARQ process group, wherein the configuration information is information configured based on a radio resource control (RRC) signaling and/or a media access control (MAC) Control Element (CE). ### Claim 18 (depends on 10) The terminal device of claim 10, wherein the transceiver is further configured to: receive indication information sent by a network device, wherein the indication information is used for indicating an HARQ process group to which the HARQ process belongs, wherein the transceiver is specifically configured to: receive downlink control information (DCI) sent by the network device, wherein scrambling information and/or RNTI information of the DCI is used for indicating the HARQ process group to which the HARQ process belongs. ### Claim 19 (depends on 10) The terminal device of claim 10, wherein the signal comprises at least one physical uplink shared channel (PUSCH) and/or at least one physical downlink shared channel (PDSCH). ### Claim 20 (depends on 10) The terminal device of claim 10, wherein the signal comprises a signal sent to or received from the terminal device through at least one of at least one transmission reception point (TRP), at least one antenna panel, and at least one beam.