# US 12,009,931 B2 · Uplink transmission method and communications apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,931 B2 - Document ID: US12009931B2 - Status: Granted - Kind: B2 - Application number: 17/400,477 - Filed: 2021-08-12 - Published: 2021-12-16 - Granted: 2024-06-11 - Earliest claimed: 2019-02-14 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Li Zhao; Qinghai Zeng; Mingzeng Dai; Chunhua You - Web page: https://patentgrep.com/patent/US12009931B2 ## CPC - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 1/1822: involving configuration of automatic repeat request [ARQ] with parallel processes - H04L 1/1887: {Scheduling and prioritising arrangements} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04L 1/1896: {ARQ related signaling} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/1268: of uplink data flows - 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 An uplink transmission method and a communications apparatus, the method including when transmitting, in a subframe in which an autonomous uplink transmission resource is configured, uplink data by using a first hybrid automatic repeat request (HARQ) process, considering that a new data indicator (NDI) for the first HARQ process is toggled, where the first HARQ process is a HARQ process that can be used for autonomous uplink transmission, and before the subframe, there is no uplink grant for the first HARQ process delivered to a HARQ entity, and performing new uplink data transmission in the subframe by using the first HARQ process. ## Claims ### Claim 1 An uplink transmission method, comprising: receiving an autonomous uplink transmission activation message, wherein the autonomous uplink transmission activation message indicates to activate an autonomous uplink transmission resource; toggling a new data indicator (NDI) for a second hybrid automatic repeat request (HARQ) process, wherein the second HARQ process is different from a first HARQ process; and performing new uplink data transmission after receiving the autonomous uplink transmission activation message, and in a process of transmitting, in a subframe in which an autonomous uplink transmission resource is configured, uplink data using the first HARQ process, wherein the new uplink data transmission is performed in the subframe using the first HARQ process in response to an NDI for the first HARQ process being toggled, wherein the first HARQ process is a HARQ process that can be used for autonomous uplink transmission, and wherein there is no uplink grant delivered, before the subframe, for the first HARQ process, to a HARQ entity. ### Claim 2 (depends on 1) The method according to claim 1, further comprising: setting a HARQ feedback value of the first HARQ process to an acknowledgement; and wherein the NDI for the first HARQ process is considered to be toggled in response to the acknowledgement. ### Claim 3 (depends on 1) The method of claim 1, wherein the first HARQ process is preconfigured prior to the process of transmitting the uplink data. ### Claim 4 (depends on 1) The method of claim 1, wherein the first HARQ process is determined according to an autonomous uplink transmission configuration message sent, by a base station, in radio resource control (RRC) signaling. ### Claim 5 (depends on 4) The method of claim 4, wherein the subframe is determined according to an aul-Subframes parameter in the autonomous uplink transmission configuration message. ### Claim 6 (depends on 4) The method of claim 4, wherein the first HARQ process is indicated by a HARQ ID of an aul-HARQ-Processes parameter of the autonomous uplink transmission configuration message. ### Claim 7 A communications apparatus, comprising: at least one processor; and a non-transitory computer readable memory coupled to the at least one processor and storing a program for execution by the processor, instructions for: receiving an autonomous uplink transmission activation message, wherein the autonomous uplink transmission activation message indicates to activate an autonomous uplink transmission resource; toggling a new data indicator (NDI) for a second hybrid automatic repeat request (HARQ) process, wherein the second HARQ process is different from a first HARQ process; and performing new uplink data transmission after receiving the autonomous uplink transmission activation message, and in a process of transmitting, in a subframe in which an autonomous uplink transmission resource is configured, uplink data by using the first HARQ process, wherein the new uplink data transmission is performed in the subframe using the first HARQ process in response to an NDI for the first HARQ process being toggled, wherein the first HARQ process is a HARQ process that can be used for autonomous uplink transmission, and wherein there is no uplink grant delivered, before the subframe, for the first HARQ process to a HARQ entity. ### Claim 8 (depends on 7) The apparatus according to claim 7, wherein the program includes instructions for: setting a HARQ feedback value of the first HARQ process to an acknowledgement; and wherein the NDI for the first HARQ process is considered to be toggled in response to the acknowledgement. ### Claim 9 (depends on 7) The communications apparatus of claim 7, wherein the first HARQ process is preconfigured prior to the process of transmitting the uplink data. ### Claim 10 (depends on 7) The communications apparatus of claim 7, wherein the first HARQ process is determined according to an autonomous uplink transmission configuration message sent, by a base station, in radio resource control (RRC) signaling. ### Claim 11 (depends on 10) The communications apparatus of claim 10, wherein the subframe is determined according to an aul-Subframes parameter in the autonomous uplink transmission configuration message. ### Claim 12 (depends on 10) The communications apparatus of claim 10, wherein the first HARQ process is indicated by a HARQ ID of an aul-HARQ-Processes parameter of the autonomous uplink transmission configuration message. ### Claim 13 A non-transitory computer-readable storage medium, storing a program for execution by a computing device, the program including instructions for: receiving an autonomous uplink transmission activation message, wherein the autonomous uplink transmission activation message indicates to activate an autonomous uplink transmission resource; toggling a new data indicator (NDI) for a second hybrid automatic repeat request (HARQ) process, wherein the second HARQ process is different from a first HARQ process; and performing new uplink data transmission after receiving the autonomous uplink transmission activation message, and in a process of transmitting, in a subframe in which an autonomous uplink transmission resource is configured, uplink data by using the first HARQ process, wherein the new uplink data transmission is performed in the subframe using the first HARQ process in response to an NDI for the first HARQ process being toggled, wherein the NDI is considered to be toggled in response to the transmission on the subframe being an initial transmission for the first HARQ process, wherein the first HARQ process is a HARQ process that can be used for autonomous uplink transmission, and wherein there is no uplink grant delivered, before the subframe, for the first HARQ process delivered to a HARQ entity. ### Claim 14 (depends on 13) The non-transitory computer-readable storage medium according to claim 13, the program includes instructions for: setting a HARQ feedback value of the first HARQ process to an acknowledgement, and wherein the NDI for the first HARQ process is considered to be toggled in response to the acknowledgement. ### Claim 15 (depends on 13) The non-transitory computer-readable storage medium of claim 13, wherein the first HARQ process is preconfigured prior to the process of transmitting the uplink data. ### Claim 16 (depends on 13) The non-transitory computer-readable storage medium of claim 13, wherein the first HARQ process is determined according to an autonomous uplink transmission configuration message sent, by a base station, in radio resource control (RRC) signaling. ### Claim 17 (depends on 16) The non-transitory computer-readable storage medium of claim 16, wherein the subframe is determined according to an aul-Subframes parameter in the autonomous uplink transmission configuration message.