# US 2021/0345244 A1 · Group wake-up signaling using sidelink zone identifier > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345244 A1 - Document ID: US20210345244A1 - Status: Published application - Kind: A1 - Application number: 17/211,626 - Filed: 2021-03-24 - Published: 2021-11-04 - Earliest claimed: 2020-05-04 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Vasanthan RAGHAVAN; Sony AKKARAKARAN; Tao LUO; Junyi LI; Jung Ho RYU - Web page: https://patentgrep.com/patent/US20210345244A1 ## CPC - H04W 52/0219: {where the power saving management affects multiple terminals} - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - H04W 52/0229: {where the received signal is a wanted signal} - H04W 68/025: {Indirect paging} - H04W 76/14: Direct-mode setup - Y02D 30/70: in wireless communication networks - 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 Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may configure a group wake-up signal based at least in part on a sidelink zone identifier that corresponds to a geographical area. The base station may transmit the group wake-up signal to collectively wake up at least a subset of user equipments (UEs) that are located in the geographical area corresponding to the sidelink zone identifier. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a base station, comprising: configuring a group wake-up signal based at least in part on a sidelink zone identifier that corresponds to a geographical area; and transmitting the group wake-up signal to collectively wake up at least a subset of user equipments (UEs) located in the geographical area corresponding to the sidelink zone identifier. ### Claim 2 (depends on 1) The method of claim 1, wherein the group wake-up signal is associated with a parameter configuration that is based at least in part on the sidelink zone identifier. ### Claim 3 (depends on 2) The method of claim 2, wherein the parameter configuration causes the group wake-up signal to collectively wake up the subset of the UEs located in the geographical area corresponding to the sidelink zone identifier without waking up one or more UEs located outside the geographical area corresponding to the sidelink zone identifier. ### Claim 4 (depends on 1) The method of claim 1, wherein at least a portion of the geographical area that corresponds to the sidelink zone identifier is located in a neighboring cell. ### Claim 5 (depends on 4) The method of claim 4, further comprising: communicating with a base station providing the neighboring cell to configure the geographical area that corresponds to the sidelink zone identifier based at least in part on one or more statistical metrics related to geographical proximity among UEs. ### Claim 6 (depends on 1) The method of claim 1, further comprising: transmitting, to one or more of the UEs located in the geographical area corresponding to the sidelink zone identifier, information indicating one or more neighboring sidelink zone identifiers, wherein the one or more UEs monitor for the group wake-up signal associated with the sidelink zone identifier corresponding to the geographical area in which the one or more UEs are located and for group wake-up signals associated with the one or more neighboring sidelink zone identifiers. ### Claim 7 (depends on 1) The method of claim 1, wherein the group wake-up signal activates an access link and at least a subset of sidelinks for each UE located in the geographical area corresponding to the sidelink zone identifier. ### Claim 8 (depends on 7) The method of claim 7, further comprising: determining the subset of the sidelinks to be activated for each UE located in the geographical area corresponding to the sidelink zone identifier based at least in part on one or more network-level statistical metrics. ### Claim 9 A method of wireless communication performed by a user equipment (UE), comprising: determining a sidelink zone identifier that corresponds to a geographical area in which the UE is located; and waking from a sleep state based at least in part on receiving a group wake-up signal that is based at least in part on the sidelink zone identifier, wherein the group wake-up signal is configured to collectively wake up at least a subset of UEs located in the geographical area corresponding to the sidelink zone identifier. ### Claim 10 (depends on 9) The method of claim 9, wherein the group wake-up signal is associated with a parameter configuration that is based at least in part on the sidelink zone identifier. ### Claim 11 (depends on 10) The method of claim 10, wherein the parameter configuration causes the group wake-up signal to collectively wake up the subset of the UEs located in the geographical area corresponding to the sidelink zone identifier without waking up one or more UEs located outside the geographical area corresponding to the sidelink zone identifier. ### Claim 12 (depends on 9) The method of claim 9, wherein at least a portion of the geographical area that corresponds to the sidelink zone identifier is located in a neighboring cell. ### Claim 13 (depends on 9) The method of claim 9, further comprising: receiving, from a base station, information indicating one or more neighboring sidelink zone identifiers; and monitoring for the group wake-up signal associated with the sidelink zone identifier corresponding to the geographical area in which the UE is located and for group wake-up signals associated with the one or more neighboring sidelink zone identifiers. ### Claim 14 (depends on 13) The method of claim 13, wherein the group wake-up signal that causes the UE to wake up from the sleep state is associated with one or more of the sidelink zone identifier corresponding to the geographical area in which the UE is located or the one or more neighboring sidelink zone identifiers. ### Claim 15 (depends on 13) The method of claim 13, wherein the UE further monitors for a group wake-up signal associated with a sidelink zone identifier corresponding to a geographical area in which the UE was previously located during a time period after entering the geographical area in which the UE is currently located. ### Claim 16 (depends on 9) The method of claim 9, wherein the group wake-up signal activates an access link for the UE and at least a subset of sidelinks for the UE. ### Claim 17 A base station for wireless communication, comprising: a memory; and one or more processors, coupled to the memory, configured to: configure a group wake-up signal based at least in part on a sidelink zone identifier that corresponds to a geographical area; and transmit the group wake-up signal to collectively wake up at least a subset of user equipments located in the geographical area corresponding to the sidelink zone identifier. ### Claim 18 (depends on 17) The base station of claim 17, wherein the group wake-up signal is associated with a parameter configuration that is based at least in part on the sidelink zone identifier. ### Claim 19 (depends on 18) The base station of claim 18, wherein the parameter configuration causes the group wake-up signal to collectively wake up the subset of the UEs located in the geographical area corresponding to the sidelink zone identifier without waking up one or more UEs located outside the geographical area corresponding to the sidelink zone identifier. ### Claim 20 (depends on 17) The base station of claim 17, wherein at least a portion of the geographical area that corresponds to the sidelink zone identifier is located in a neighboring cell. ### Claim 21 (depends on 20) The base station of claim 20, wherein the one or more processors are further configured to: communicate with a base station providing the neighboring cell to configure the geographical area that corresponds to the sidelink zone identifier based at least in part on one or more statistical metrics related to geographical proximity among UEs. ### Claim 22 (depends on 17) The base station of claim 17, wherein the one or more processors are further configured to: transmit, to one or more of the UEs located in the geographical area corresponding to the sidelink zone identifier, information indicating one or more neighboring sidelink zone identifiers, wherein the one or more UEs monitor for the group wake-up signal associated with the sidelink zone identifier corresponding to the geographical area in which the one or more UEs are located and for group wake-up signals associated with the one or more neighboring sidelink zone identifiers. ### Claim 23 (depends on 17) The base station of claim 17, wherein the group wake-up signal activates an access link and at least a subset of sidelinks for each UE located in the geographical area corresponding to the sidelink zone identifier. ### Claim 24 A user equipment (UE) for wireless communication, comprising: a memory; and one or more processors, coupled to the memory, configured to: determine a sidelink zone identifier that corresponds to a geographical area in which the UE is located; and wake from a sleep state based at least in part on receiving a group wake-up signal that is based at least in part on the sidelink zone identifier, wherein the group wake-up signal is configured to collectively wake up at least a subset of UEs located in the geographical area corresponding to the sidelink zone identifier. ### Claim 25 (depends on 24) The UE of claim 24, wherein the group wake-up signal is associated with a parameter configuration that is based at least in part on the sidelink zone identifier. ### Claim 26 (depends on 24) The UE of claim 24, wherein at least a portion of the geographical area that corresponds to the sidelink zone identifier is located in a neighboring cell. ### Claim 27 (depends on 24) The UE of claim 24, wherein the one or more processors are further configured to: receive, from a base station, information indicating one or more neighboring sidelink zone identifiers; and monitor for the group wake-up signal associated with the sidelink zone identifier corresponding to the geographical area in which the UE is located and for group wake-up signals associated with the one or more neighboring sidelink zone identifiers. ### Claim 28 (depends on 27) The UE of claim 27, wherein the group wake-up signal that causes the UE to wake up from the sleep state is associated with one or more of the sidelink zone identifier corresponding to the geographical area in which the UE is located or the one or more neighboring sidelink zone identifiers. ### Claim 29 (depends on 27) The UE of claim 27, wherein the one or more processors are further configured to: monitor for a group wake-up signal associated with a sidelink zone identifier corresponding to a geographical area in which the UE was previously located during a time period after entering the geographical area in which the UE is currently located. ### Claim 30 (depends on 24) The UE of claim 24, wherein the group wake-up signal activates an access link for the UE and at least a subset of sidelinks for the UE.