# US 12,010,759 B2 · Method for processing change in radio capability of terminal apparatus and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,759 B2 - Document ID: US12010759B2 - Status: Granted - Kind: B2 - Application number: 17/176,381 - Filed: 2021-02-16 - Published: 2021-06-17 - Granted: 2024-06-11 - Earliest claimed: 2018-08-13 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Ruizhi Liu; Wanqiang Zhang; Zhenglei Huang; Haiyang Sun - Web page: https://patentgrep.com/patent/US12010759B2 ## CPC - H04W 8/24: Transfer of terminal data - H04W 76/10: Connection setup - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 76/19: Connection re-establishment - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract This application provides a method for processing a change in a radio capability of a terminal apparatus and an apparatus. The method includes: receiving, by an access network apparatus, indication information, where the access network apparatus stores radio capability information of a terminal apparatus, and the indication information is used to indicate that a radio capability of the terminal apparatus changes, or is used to request a current radio capability of the terminal apparatus from the access network apparatus; and obtaining, by the access network apparatus, radio capability information of the terminal apparatus according to the indication information. According to this application, communication efficiency of a radio control resource connection performed when a radio capability of the UE changes in a suspend state can be improved. ## Claims ### Claim 1 A terminal apparatus comprising at least one processor and a memory coupled to the at least one processor, wherein the memory comprises instructions that, when executed by the at least one processor, cause the terminal apparatus to perform operations comprising: initiating a radio resource control connection (RRC) establishment message to a network device, based on the terminal apparatus being in a RRC suspend or inactive state and a change of radio capability of the terminal apparatus having occurred since a last RRC establishment message, wherein the RRC establishment message comprises radio resource resume identification information that includes a terminal capability change indication for use by the network device to delete an old context of the terminal apparatus. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein the operations further comprise: instructing, by a non-access stratum of the terminal apparatus, an access stratum to initiate the radio resource control connection establishment message. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein the RRC connection establishment message further comprises indication information for indicating a current state of the radio capability of the terminal apparatus or for requesting a current radio capability of the terminal apparatus from the access network apparatus. ### Claim 4 A method for processing a change in a radio capability of a terminal apparatus, the method comprising: initiating, by the terminal apparatus, a radio resource control (RRC) connection establishment message based on the terminal apparatus being in a RRC suspend or inactive state and a change of radio capability to a network device of the terminal apparatus has occurred since a last RRC establishment message, wherein the RRC establishment message comprises radio resource resume identification information that includes a terminal capability change indication for use by the network device to delete an old context of the terminal apparatus. ### Claim 5 (depends on 4) The method according to claim 4, wherein initiating the radio resource control connection establishment message comprises instructing, by a non-access stratum of the terminal apparatus, an access stratum to initiate the radio resource control connection establishment message. ### Claim 6 (depends on 4) The method according to claim 4, wherein the RRC connection establishment message further comprises indication information for indicating to the network device a current state of the radio capability of the terminal apparatus, or for requesting a current radio capability of the terminal apparatus from the access network apparatus. ### Claim 7 A non-transitory computer readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to execute operations comprising: initiating a radio resource control connection (RRC) establishment message to a network device, based on a terminal apparatus being in a RRC suspend or inactive state and a change of radio capability of the terminal apparatus having occurred since a last RRC establishment message, wherein the RRC establishment message comprises radio resource resume identification information that includes a terminal capability change indication for use by the network device to delete an old context of the terminal apparatus. ### Claim 8 (depends on 7) The non-transitory computer readable medium according to claim 7, wherein the operations further comprise instructing an access stratum to initiate the radio resource control connection establishment message. ### Claim 9 (depends on 7) The non-transitory computer readable medium according to claim 7, wherein the RRC connection establishment message further comprises indication information for indicating to the network device a current state of the radio capability of the terminal apparatus, or for requesting a current radio capability of the terminal apparatus from the access network apparatus.