# US 12,193,003 B2 · Discontinuous reception DRX parameter configuration method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,193,003 B2 - Document ID: US12193003B2 - Status: Granted - Kind: B2 - Application number: 17/791,379 - Filed: 2021-01-07 - Published: 2023-02-02 - Granted: 2025-01-07 - Earliest claimed: 2020-01-08 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Mengchen Zhang; Haibo Xu; Jian Wang - Web page: https://patentgrep.com/patent/US12193003B2 ## CPC - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 72/20: Control channels or signalling for resource management - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04W 52/0219: {where the power saving management affects multiple terminals} - H04W 52/0229: {where the received signal is a wanted signal} - H04W 52/0251: {using monitoring of local events, e.g. events related to user activity} - H04W 52/028: {switching on or off only a part of the equipment circuit blocks} - H04W 76/14: Direct-mode setup - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - Y02D 30/70: in wireless communication networks - 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) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A discontinuous reception (DRX) parameter configuration method includes a first communication apparatus that sends data to a second communication apparatus on a sidelink based on a DRX parameter. The second communication apparatus determines an active time and a sleep period of the second communication apparatus based on the DRX parameter, and receives the data in the active time. ## Claims ### Claim 1 A sidelink discontinuous reception (DRX) parameter configuration method implemented by a first communication apparatus, wherein the sidelink DRX parameter configuration method is applied to a device-to-device (D2D) communication scenario, and wherein the sidelink DRX parameter configuration method comprises: obtaining a sidelink DRX parameter, wherein the sidelink DRX parameter is used by the first communication apparatus to send data, on a sidelink based on the sidelink DRX parameter, to at least one second communication apparatus connected to the first communication apparatus; sending, to the at least one second communication apparatus, the sidelink DRX parameter; receiving sidelink resource information; determining based on the sidelink DRX parameter, the sidelink resource information, and a logical channel priority, a third communication apparatus in an active time of sidelink, which is one of the at least one second communication apparatus; and performing, based on the sidelink resource information, communication with the third communication apparatus. ### Claim 2 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein determining the third communication apparatus comprises: determining, based on the sidelink DRX parameter and the sidelink resource information, at least one communication apparatus that is in the active time of sidelink within a time corresponding to the sidelink resource information among the at least one second communication apparatus, wherein the at least one communication apparatus comprises the third communication apparatus. ### Claim 3 (depends on 2) The sidelink DRX parameter configuration method of claim 2, wherein the third communication apparatus has a logical channel with a highest priority among the at least one communication apparatus being in the active time of sidelink within the time corresponding to the sidelink resource information. ### Claim 4 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein obtaining the sidelink DRX parameter comprises receiving, from a network device, the sidelink DRX parameter, and wherein the first communication apparatus is located within a coverage area of the network device. ### Claim 5 (depends on 4) The sidelink DRX parameter configuration method of claim 4, wherein receiving the sidelink DRX parameter further comprises receiving, from the network device, a configuration message comprising the sidelink DRX parameter and an identifier of the at least one second communication apparatus. ### Claim 6 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein obtaining the sidelink DRX parameter comprises determining, based on a data transmission requirement of the first communication apparatus on a sidelink, the sidelink DRX parameter of the at least one second communication apparatus. ### Claim 7 (depends on 6) The sidelink DRX parameter configuration method of claim 6, further comprising sending, to a network device, the sidelink DRX parameter and an identifier of the at least one second communication apparatus. ### Claim 8 (depends on 6) The sidelink DRX parameter configuration method of claim 6, wherein the data transmission requirement is quality of service (QoS) for a service of the first communication apparatus on the sidelink. ### Claim 9 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein sending the sidelink DRX parameter comprises sending, to the at least one second communication apparatus, a configuration message comprising the sidelink DRX parameter. ### Claim 10 (depends on 1) The sidelink DRX parameter configuration method of claim 1, further comprising: storing the sidelink DRX parameter; and establishing a correspondence between the sidelink DRX parameter and an identifier of the at least one second communication apparatus. ### Claim 11 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein receiving the sidelink resource information comprises receiving, from a network device, downlink control information (DCI) comprising the sidelink resource information and that is allocated to the first communication apparatus. ### Claim 12 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein the sidelink DRX parameter comprises at least one of sidelink DRX-onDurationTimer, sidelink DRX-SlotOffset, sidelink DRX-InactivityTimer, sidelink DRX-RetransmissionTimer, sidelink DRX-ShortCycle, sidelink DRX-ShortCycleTimer, or sidelink DRX-HARQ-RTT-Timer. ### Claim 13 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein the active time of sidelink comprises: sidelink DRX-onDurationTimer or sidelink DRX-InactivityTimer comprised in the sidelink DRX parameter is running; sidelink DRX-RetransmissionTimer comprised in the sidelink DRX parameter running; or ra-ContentionResolutionTimer comprised in the sidelink DRX parameter running; or wherein the second communication apparatus has sent a scheduling request (SR) on a physical uplink control channel (PUCCH) and the SR is currently in a pending state. ### Claim 14 (depends on 1) The sidelink DRX parameter configuration method of claim 1, wherein the first communication apparatus is a first terminal device or a first communication chip, and wherein the at least one second communication apparatus is a second terminal device or a second communication chip. ### Claim 15 A sidelink discontinuous reception (DRX) parameter configuration method implemented by a network device, wherein the sidelink DRX parameter configuration method is applied to a device-to-device (D2D) communication scenario, and wherein the sidelink DRX parameter configuration method comprises: determining a sidelink DRX parameter, wherein the sidelink DRX parameter is used by a first communication apparatus to send data, on a sidelink based on the sidelink DRX parameter, to at least one second communication apparatus connected to the first communication apparatus; sending, to the first communication apparatus, the sidelink DRX parameter; and sending, to the first communication apparatus, sidelink resource information, wherein the sidelink resource information enables the first communication apparatus based on the sidelink DRX parameter, the sidelink resource information, and a logical channel priority, to determine a third communication apparatus that is in an active time of sidelink, which is one of the at least one second communication apparatus and to perform communication with the third communication apparatus based on the sidelink resource information. ### Claim 16 (depends on 15) The sidelink DRX parameter configuration method of claim 15, wherein sending sidelink DRX parameter comprises sending, to the first communication apparatus, a configuration message comprising the sidelink DRX parameter and an identifier of the at least one second communication apparatus. ### Claim 17 (depends on 15) The sidelink DRX parameter configuration method of claim 15, wherein the first communication apparatus is a terminal device or a communication chip, and the second communication apparatus is a terminal device or a communication chip. ### Claim 18 A first communication apparatus applied to a device-to-device (D2D) communication scenario and comprising: a memory configured to store instructions; and a processor coupled to the memory and configured to execute the instructions to cause the first communication apparatus to: obtain a sidelink discontinuous reception (DRX) parameter, wherein the sidelink DRX parameter is used by the first communication apparatus to send data, on a sidelink based on the sidelink DRX parameter, to at least one second communication apparatus connected to the first communication apparatus; send, to the at least one second communication apparatus, the sidelink DRX parameter; receive sidelink resource information; determine, based on the sidelink DRX parameter the sidelink resource information, and a logical channel priority, a third communication apparatus in an active time of sidelink, which is one of the at least one second communication apparatus; and perform, based on the sidelink resource information, communication with the third communication apparatus. ### Claim 19 (depends on 4) The sidelink DRX parameter configuration method of claim 4, wherein before receiving the sidelink DRX parameter, obtaining the sidelink DRX parameter further comprises sending assistance information and an identifier of the at least one second communication apparatus to the network device, wherein the assistance information is used to determine the sidelink DRX parameter. ### Claim 20 (depends on 15) The sidelink DRX parameter configuration method of claim 15, wherein before determining the sidelink DRX parameter, the method further comprises receiving assistance information and an identifier of the at least one second communication apparatus from the first communication apparatus, wherein the assistance information is used to determine the sidelink DRX parameter, and wherein the first communication apparatus is located within a coverage area of the network device.