# US 12,764,640 B2 · Active base station role in user equipment discovery for user equipment cooperation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,764,640 B2 - Document ID: US12764640B2 - Status: Granted - Kind: B2 - Application number: 18/580,219 - Filed: 2021-09-17 - Published: 2024-11-28 - Granted: 2026-10-13 - Earliest claimed: 2021-09-17 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Fang Yuan; Aleksandar Damnjanovic; Luanxia Yang; Mostafa Khoshnevisan; Wooseok Nam; Rajat Prakash; Tao Luo; Xiaoxia Zhang - Web page: https://patentgrep.com/patent/US12764640B2 ## CPC - H04W 48/14: using user query {or user detection} - H04W 8/005: {Discovery of network devices, e.g. terminals} - H04W 48/16: Discovering, processing access restriction or access information - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Wireless communications systems and methods related to UE cooperation are provided. A base station (BS) may assist a UE in discovering and cooperating with other UEs. A BS may collect information from candidate cooperative UEs such as UE capability and availability. This information may be broadcast to other UEs or may be transmitted to a UE at the UE's request. The UE may, upon receipt of this information, use it to aid in discovering the candidate cooperative UEs and/or establishing a connection. ## Claims ### Claim 1 A method of wireless communication comprising: receiving, by a user equipment (UE) from a base station (BS), a first information set associated with a candidate cooperative UE, wherein the first information set comprises UE availability information of the candidate cooperative UE, wherein the UE availability information comprises: discontinuous reception (DRX) information of the candidate cooperative UE, and an indication of a time slot during which the candidate cooperative UE is available for cooperation, the time slot comprising a time stamp and a window length during which the candidate cooperative UE is available for cooperation; discovering, by the UE, the candidate cooperative UE based on the first information set; connecting, by the UE to the candidate cooperative UE; and communicating, by the UE with the BS, through the candidate cooperative UE. ### Claim 2 (depends on 1) The method of claim 1, wherein the first information set further comprises at least one of: UE capability information of the candidate cooperative UE, UE link status information of the candidate cooperative UE, or UE configuration information of the candidate cooperative UE. ### Claim 3 (depends on 2) The method of claim 2, wherein the UE capability information comprises one or more of: supported sidelink type, supported sidelink latency, supported Uu link, or uplink (UL) transmit power class. ### Claim 4 (depends on 1) The method of claim 1, wherein the receiving is from a broadcast signal by the BS. ### Claim 5 (depends on 1) The method of claim 1, further comprising: communicating, by the UE to the BS, a request for the first information set, wherein the receiving of the first information set is in response to the request. ### Claim 6 (depends on 1) The method of claim 1, wherein: the BS comprises a first BS and a second BS, and the receiving is from the first BS and the communicating is with the second BS. ### Claim 7 (depends on 1) The method of claim 1, further comprising: communicating, by the UE to the BS, a second information set associated with the UE. ### Claim 8 (depends on 7) The method of claim 7, wherein the second information set comprises a same type of information as the first information set. ### Claim 9 A method of wireless communication comprising: receiving, by a base station (BS) from a candidate cooperative user equipment (UE), a first information set associated with the candidate cooperative UE, wherein the first information set comprises at least UE availability information of the candidate cooperative UE, wherein the UE availability information comprises: discontinuous reception (DRX) information of the candidate cooperative UE, and an indication of a time slot during which the candidate cooperative UE is available for cooperation, the time slot comprising a time stamp and a window length during which the candidate cooperative UE is available for cooperation; communicating, by the BS to a target UE, at least a portion of the first information set; and receiving, by the BS from the target UE, a cooperative UE update request based on the at least a portion of the first information set. ### Claim 10 (depends on 9) The method of claim 9, wherein the first information set further comprises at least one of: UE capability information of the candidate cooperative UE, UE link status information of the candidate cooperative UE, or UE configuration information of the candidate cooperative UE. ### Claim 11 (depends on 10) The method of claim 10, wherein the UE capability information comprises one or more of: supported sidelink type, supported sidelink latency, supported Uu link, or uplink (UL) transmit power class. ### Claim 12 (depends on 9) The method of claim 9, wherein the communicating comprising broadcasting by the BS. ### Claim 13 (depends on 9) The method of claim 9, further comprising: receiving, from the target UE, a request for at least a portion of the first information set, wherein the communicating is in response to the request. ### Claim 14 (depends on 9) The method of claim 9, further comprising: receiving, by the BS from the target UE, a second information set associated with the target UE. ### Claim 15 (depends on 14) The method of claim 14, wherein the second information set comprises a same type of information as the first information set. ### Claim 16 A user equipment (UE) comprising: a transceiver configured to: receive, from a base station (BS), a first information set associated with a candidate cooperative UE, wherein the first information set comprises UE availability information of the candidate cooperative UE, wherein the UE availability information comprises: discontinuous reception (DRX) information of the candidate cooperative UE, and an indication of a time slot during which the candidate cooperative UE is available for cooperation, the time slot comprising a time stamp and a window length during which the candidate cooperative UE is available for cooperation; and a processor configured to: discover the candidate cooperative UE based on the first information set; and connect to the candidate cooperative UE, wherein the transceiver is further configured to communicate with the BS through the candidate cooperative UE. ### Claim 17 (depends on 16) The UE of claim 16, wherein the first information set further comprises at least one of: UE capability information of the candidate cooperative UE, UE link status information of the candidate cooperative UE, or UE configuration information of the candidate cooperative UE. ### Claim 18 (depends on 17) The UE of claim 17, wherein the UE capability information comprises one or more of: supported sidelink type, supported sidelink latency, supported Uu link, or uplink (UL) transmit power class. ### Claim 19 (depends on 16) The UE of claim 16, wherein, to receive the first information set associated with a candidate cooperative UE, the transceiver is configured to receive the first information set from a broadcast signal by the BS. ### Claim 20 (depends on 16) The UE of claim 16, wherein: the transceiver is further configured to communicate, to the BS, a request for the first information set, and to receive the first information set associated with a candidate cooperative UE, the transceiver is configured to receive the first information set in response to the request. ### Claim 21 (depends on 16) The UE of claim 16, wherein the BS comprises a first BS and a second BS, wherein the receiving is from the first BS and the communicating is with the second BS. ### Claim 22 (depends on 16) The UE of claim 16, wherein the transceiver is further configured to: communicate, to the BS, a second information set associated with the UE. ### Claim 23 (depends on 22) The UE of claim 22, wherein the second information set comprises a same type of information as the first information set. ### Claim 24 A base station (BS) comprising: a transceiver configured to: receive, from a candidate cooperative user equipment (UE), a first information set associated with the candidate cooperative UE, wherein the first information set comprises UE availability information of the candidate cooperative UE, wherein the UE availability information comprises: discontinuous reception (DRX) information of the candidate cooperative UE, and an indication of a time slot during which the candidate cooperative UE is available for cooperation, the time slot comprising a time stamp and a window length during which the candidate cooperative UE is available for cooperation; communicate, to a target UE, at least a portion of the first information set; and receive, from the target UE, a cooperative UE update request based on the at least a portion of the first information set. ### Claim 25 (depends on 24) The BS of claim 24, wherein the first information set comprises at least one of: UE capability information of the candidate cooperative UE, UE link status information of the candidate cooperative UE, or UE configuration information of the candidate cooperative UE. ### Claim 26 (depends on 25) The BS of claim 25, wherein the UE capability information comprises one or more of: supported sidelink type, supported sidelink latency, supported Uu link, or uplink (UL) transmit power class. ### Claim 27 (depends on 24) The BS of claim 24, wherein the communication comprises a broadcast signal. ### Claim 28 (depends on 24) The BS of claim 24, wherein the transceiver is further configured to: receive, from the target UE, a request for at least a portion of the first information set, wherein the communication is in response to the request. ### Claim 29 (depends on 24) The BS of claim 24, wherein the transceiver is further configured to: receive, from the target UE, a second information set associated with the target UE. ### Claim 30 (depends on 29) The BS of claim 29, wherein the second information set comprises a same type of information as the first information set.