# US 2025/0098015 A1 · Method and apparatus for multi-sim operation during handover based on reporting on terminal state in wireless mobile communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0098015 A1 - Document ID: US20250098015A1 - Status: Published application - Kind: A1 - Application number: 18/965,431 - Filed: 2024-12-02 - Published: 2025-03-20 - Earliest claimed: 2021-12-29 - Assignees: Soenghun KIM; Blackpin Inc. - Applicants: Blackpin Inc. - Inventors: Soenghun KIM - Web page: https://patentgrep.com/patent/US20250098015A1 ## CPC - H04W 76/20: Manipulation of established connections - H04L 69/28: Timers or timing mechanisms used in protocols - H04W 8/24: Transfer of terminal data - H04W 36/00: Hand-off or reselection arrangements - H04W 36/249: {according to timing information} - H04W 72/12: Wireless traffic scheduling - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method includes receiving from a base station a first RRCReconfiguration, transmitting to the base station a UEAssistanceInformation, starting the first timer after initiating transmission of UEAssistanceInformation, receiving from the base station a second RRCReconfiguration and starting the second timer before initiating random access procedure. The first RRCReconfiguration includes a configuration information related to terminal state transition, the configuration information related to terminal state transition includes an information for a first timer, the first timer is a timer related to terminal state transition. The UEAssistanceInformation includes an information related to terminal's state. The second RRCReconfiguration includes a ReconfigurationWithSync, the ReconfigurationWithSync includes an information for a second timer related to handover. The first timers stops if the second timer expires while the first timer is running. The second timers stops if the first timer expires while the second timer is running. ## Claims ### Claim 1 A method by a terminal, the method comprising: receiving from a base station a first message, wherein the first message comprises either a first configuration information related to state transition or a second configuration information related to state transition; and transmitting to the base station a second message, wherein the second message comprises a first information related to state or a second information related to state, wherein: the first information related to state is comprised in the second message in case that the first message comprises the first configuration information related to state transition; and the second information related to state is comprised in the second message in case that the first message comprises the second configuration information related to state transition. ### Claim 2 (depends on 1) The method of claim 1, wherein: the first information related to state indicates one of first set of states; and the second information related to state indicates one of second set of states. ### Claim 3 (depends on 2) The method of claim 2, wherein the first set of states comprises: IDLE state; INACTIVE state; and CONNECTED state. ### Claim 4 (depends on 3) The method of claim 3, wherein: the second set of states comprises: IDLE state; and INACTIVE state; and the second set of states does not comprise CONNECTED state. ### Claim 5 (depends on 1) The method of claim 1, wherein: the first configuration information related to state transition comprises a parameter related to a first timer; and the second configuration information related to state transition comprises a parameter related to a second timer. ### Claim 6 (depends on 5) The method of claim 5, wherein: the first timer controls transmission of the second message; and the second timer controls autonomous state transition. ### Claim 7 (depends on 5) The method of claim 5, wherein: the first timer starts before transmission of the second message is initiated; and the second timer starts after transmission of the second message is initiated. ### Claim 8 (depends on 6) The method of claim 6, wherein the terminal starts: the first timer in case that the first configuration information related to state transition is comprised in the first message; and the second timer in case that the second configuration information related to state transition is comprised in the first message. ### Claim 9 (depends on 8) The method of claim 8, wherein: the terminal stops the first timer in case that the second timer expires; and the terminal does not stop the second timer in case that the first timer expires. ### Claim 10 (depends on 8) The method of claim 8, wherein the terminal reset medium access control entity in case that the second timer expires. ### Claim 11 (depends on 1) The method of claim 1, the method further comprising: receiving from the base station, after transmission of the second message, a third message, wherein the third message comprises a suspend configuration. ### Claim 12 (depends on 11) The method of claim 11, wherein the terminal stops the second timer before applying the suspend configuration. ### Claim 13 (depends on 12) The method of claim 12, wherein the terminal stores cell identity of primary cell after applying the suspend configuration. ### Claim 14 A terminal in a wireless communication system, the terminal comprising: a transceiver configured to transmit and receive a signal; and a controller configured to: receive from a base station a first message, wherein the first message comprises either a first configuration information related to state transition or a second configuration information related to state transition, and transmit to the base station a second message, wherein the second message comprises a first information related to state or a second information related to state, wherein: the first information related to state is comprised in the second message in case that the first message comprises the first configuration information related to state transition; and the second information related to state is comprised in the second message in case that the first message comprises the second configuration information related to state transition.