# US 12,004,016 B2 · Method and apparatus for transmitting configuration information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,016 B2 - Document ID: US12004016B2 - Status: Granted - Kind: B2 - Application number: 17/312,859 - Filed: 2018-12-14 - Published: 2022-01-13 - Granted: 2024-06-04 - Earliest claimed: 2018-12-14 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Xing Yang - Web page: https://patentgrep.com/patent/US12004016B2 ## CPC - H04W 36/0009: {for a plurality of users or terminals, e.g. group communication or moving wireless networks (user group management H04W4/08; processing of subscriber group data H04W8/186)} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 36/0072: {of resource information of target access point} - H04W 36/00835: {Determination of neighbour cell lists} - H04W 72/20: Control channels or signalling for resource management - H04W 36/03: {Reselecting a link using a direct mode connection} - H04W 72/51: based on terminal or device properties - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present invention relates to a method and apparatus for transmitting configuration information. The method comprises: when a cell change is performed, checking whether scheduled user equipment is moved out of a pre-configured area range; and when the scheduled user equipment is moved out of the pre-configured area range, sending a notification message to scheduling user equipment in a group, the notification message comprising related information that is related to sending resource pool information of the changed cell. ## Claims ### Claim 1 A method for transmitting configuration information, performed by a scheduled user equipment (UE) and comprising: checking whether the scheduled UE has moved out of a preconfigured area range when performing a cell change; and sending a notification message to a scheduling UE in a same group when the scheduled UE has moved out of the preconfigured area range, wherein the scheduled UE and the scheduling UE are communicated through a sidelink, and the notification message comprises relevant information regarding transmission resource pool information of a changed cell; wherein before sending the notification message to the scheduling UE in the same group, the method further comprises: when a base station serves on a frequency used for communication between the UEs, receiving system information from the base station, wherein the system information comprises a cell identifier and available transmission resource pool information of the changed cell, system information area identifier information corresponding to the changed cell and radio access network (RAN) area identifier information corresponding to the changed cell, and the notification message further comprises the system information area identifier information and the RAN area identifier information. ### Claim 2 (depends on 1) The method of claim 1, wherein before checking whether the scheduled UE has moved out of the preconfigured area range, the method further comprises: receiving area range information from the scheduling UE in the same group. ### Claim 3 (depends on 2) The method of claim 2, wherein the area range information comprises one of cell list information, system information area identifier list information and RAN area identifier list information. ### Claim 4 (depends on 1) The method of claim 1, wherein the area range is a cell before the change. ### Claim 5 (depends on 1) The method of claim 1, wherein the notification message comprises radio resource control (RRC) signaling between UEs or medium access control (MAC) signaling between UEs. ### Claim 6 (depends on 1) The method of claim 1, wherein the relevant information regarding the transmission resource pool information of the changed cell comprises at least one of the cell identifier of the changed cell, the available transmission resource pool information of the changed cell, the system information area identifier information corresponding to the changed cell, the RAN area identifier information corresponding to the changed cell or no network coverage information after the change. ### Claim 7 A device for transmitting configuration information, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions stored in the memory to cause the device to: check whether a scheduled user equipment (UE) has moved out of a preconfigured area range when a cell change is performed; and send a notification message to a scheduling UE in a same group when the scheduled UE has moved out of the preconfigured area range, wherein the scheduled UE and the scheduling UE are communicated through a sidelink, and the notification message comprises relevant information regarding transmission resource pool information of a changed cell; wherein the processor is configured to execute the instructions to cause the device to: receive, before sending the notification message to the scheduling UE in the same group, system information sent by a base station when the base station serves on a frequency used for communication between the UEs, wherein the system information comprises a cell identifier and available transmission resource pool information of the changed cell, system information area identifier information corresponding to the changed cell and radio access network (RAN) area identifier information corresponding to the changed cell, and the notification message further comprises the system information area identifier information and the RAN area identifier information. ### Claim 8 (depends on 7) The device of claim 7, wherein the processor is configured to execute the instructions stored in the memory to cause the device to: receive area range information from the scheduling UE in the same group. ### Claim 9 (depends on 8) The device of claim 8, wherein the area range information comprises one of cell list information, system information area identifier list information and RAN area identifier list information. ### Claim 10 (depends on 7) The device of claim 7, wherein the area range is a cell before the change. ### Claim 11 (depends on 7) The device of claim 7, wherein the notification message comprises radio resource control (RRC) signaling between UEs or medium access control (MAC) signaling between UEs. ### Claim 12 (depends on 7) The device of claim 7, wherein the relevant information regarding the transmission resource pool information of the changed cell comprises at least one of: the cell identifier of the changed cell, the available transmission resource pool information of the changed cell, the system information area identifier information corresponding to the changed cell, the RAN area identifier information corresponding to the changed cell or no network coverage information after the change. ### Claim 13 A non-transitory computer-readable storage medium having stored thereon computer instructions that, when executed by a processor of a scheduled user equipment (UE), implement a method for transmitting configuration information, comprising: checking whether the scheduled UE has moved out of a preconfigured area range when performing a cell change; and sending a notification message to a scheduling UE in a same group when the scheduled UE has moved out of the preconfigured area range, wherein the scheduled UE and the scheduling UE are communicated through a sidelink, and the notification message comprises relevant information regarding transmission resource pool information of a changed cell; wherein before sending the notification message to the scheduling UE in the same group, the method further comprises: when a base station serves on a frequency used for communication between the UEs, receiving system information from the base station, wherein the system information comprises a cell identifier and available transmission resource pool information of the changed cell, system information area identifier information corresponding to the changed cell and radio access network (RAN) area identifier information corresponding to the changed cell, and the notification message further comprises the system information area identifier information and the RAN area identifier information.