# US 2026/0089587 A1 · Communication method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0089587 A1 - Document ID: US20260089587A1 - Status: Published application - Kind: A1 - Application number: 19/405,636 - Filed: 2025-12-02 - Published: 2026-03-26 - Earliest claimed: 2023-06-02 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Xingxing Hu; Xiaoyu Zhang; Yanbing Li; Shuri Liao; Meng Shi - Web page: https://patentgrep.com/patent/US20260089587A1 ## CPC - H04W 36/0085: {Hand-off measurements} - H04W 36/00: Hand-off or reselection arrangements - H04W 36/0072: {of resource information of target access point} - H04W 36/08: Reselecting an access point - H04W 36/30: by measured or perceived connection quality data - H04W 36/305: {Handover due to radio link failure (control signalling for hand-off failure H04W36/0079)} - H04W 36/362: {Conditional handover} - H04W 84/06: Airborne or Satellite Networks (space-based or airborne stations H04B7/185) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A communication method and apparatus. A terminal device receives first information from a first network device to learn to disconnect, when the terminal device is handed over from a first cell managed by the first network device to a second cell managed by a second network device, a connection between the terminal device and the first cell after a receiving moment of a reference signal of the second cell is reached or after the reference signal of the second cell is received. ## Claims ### Claim 1 A method, comprising: receiving first information from a first network device, wherein the first information indicates a terminal device to disconnect, when the terminal device is handed over from a first cell managed by the first network device to a second cell managed by a second network device, a connection between the terminal device and the first cell after a receiving moment of a reference signal of the second cell is reached; and disconnecting the connection between the terminal device and the first cell after the receiving moment of the reference signal of the second cell is reached. ### Claim 2 (depends on 1) The method according to claim 1, comprising: receiving conditional handover (CHO) configuration information from the first network device, wherein the CHO configuration information comprises CHO trigger condition information corresponding to one or more candidate cells, wherein the second cell is a candidate cell, in the one or more candidate cells, that meets the CHO trigger condition information and of which a receiving moment of a reference signal is reached. ### Claim 3 (depends on 1) The method according to claim 1, further comprising: receiving first configuration information from the first network device, wherein the first configuration information is used to determine a random access resource for accessing the second cell, and the random access resource of the second cell comprises a random access moment; and disconnecting the connection between the terminal device and the first cell comprises: disconnecting the connection between the terminal device and the first cell at the random access moment. ### Claim 4 (depends on 1) The method according to claim 1, further comprising: receiving second configuration information from the first network device, wherein the second configuration information is used to determine a physical uplink shared channel resource for accessing the second cell, and the physical uplink shared channel resource comprises a sending moment of the physical uplink shared channel; and disconnecting the connection between the terminal device and the first cell comprises: disconnecting the connection between the terminal device and the first cell at the sending moment of the physical uplink shared channel. ### Claim 5 (depends on 1) The method according to claim 1, wherein before disconnecting the connection between the terminal device and the first cell, the method further comprises: sending second information to the first network device, wherein the second information indicates that the terminal device is to disconnect the connection between the terminal device and the first cell. ### Claim 6 (depends on 1) The method according to claim 1, wherein after the second cell is accessed, disconnecting the connection between the terminal device and the first cell comprises: disconnecting the connection between the terminal device and the first cell after a next receiving moment of the reference signal of the second cell is reached. ### Claim 7 (depends on 1) The method according to claim 1, further comprising: determining the receiving moment of the reference signal of the second cell based on synchronization signal block-based measurement timing configuration information of the second cell; or receiving third information from the first network device, wherein the third information indicates the receiving moment of the reference signal of the second cell. ### Claim 8 (depends on 1) The method according to claim 1, wherein the reference signal of the second cell is a synchronization signal block. ### Claim 9 (depends on 1) The method according to claim 1, wherein the reference signal of the second cell is a reference signal obtained by performing scrambling based on an identifier allocated by the second network device to the terminal device, and the reference signal of the second cell is used by the terminal device to perform downlink synchronization with the second cell. ### Claim 10 A communication apparatus comprising: at least one processor; and one or more memories including computer instructions that, when executed by the at least one processor, cause the communication apparatus to perform operations comprising: receiving first information from a first network device, wherein the first information indicates the communication apparatus to disconnect, when the communication apparatus is handed over from a first cell managed by the first network device to a second cell managed by a second network device, a connection between the communication apparatus and the first cell after a receiving moment of a reference signal of the second cell is reached; and disconnecting the connection between the communication apparatus and the first cell after the receiving moment of the reference signal of the second cell is reached. ### Claim 11 (depends on 10) The communication apparatus according to claim 10, wherein the operations further comprise: receiving conditional handover (CHO) configuration information from the first network device, wherein the CHO configuration information comprises CHO trigger condition information corresponding to one or more candidate cells, wherein the second cell is a candidate cell, in the one or more candidate cells, that meets the CHO trigger condition information and of which a receiving moment of a reference signal is reached. ### Claim 12 (depends on 10) The communication apparatus according to claim 10, wherein the operations further comprise: receiving first configuration information from the first network device, wherein the first configuration information is used to determine a random access resource for accessing the second cell, and the random access resource of the second cell comprises a random access moment; and disconnecting the connection between the communication apparatus and the first cell comprises: disconnecting the connection between the communication apparatus and the first cell at the random access moment. ### Claim 13 (depends on 10) The communication apparatus according to claim 10, wherein the operations further comprise: receiving second configuration information from the first network device, wherein the second configuration information is used to determine a physical uplink shared channel resource for accessing the second cell, and the physical uplink shared channel resource comprises a sending moment of the physical uplink shared channel; and disconnecting the connection between the communication apparatus and the first cell comprises: disconnecting the connection between the communication apparatus and the first cell at the sending moment of the physical uplink shared channel. ### Claim 14 (depends on 10) The communication apparatus according to claim 10, wherein the operations further comprise: before disconnecting the connection between the communication apparatus and the first cell, sending second information to the first network device, wherein the second information indicates that the communication apparatus is to disconnect the connection between the communication apparatus and the first cell. ### Claim 15 A first network device comprising: at least one processor; and one or more memories including computer instructions that, when executed by the at least one processor, cause the first network device to perform operations comprising: sending first information to a terminal device, wherein the first information indicates the terminal device to disconnect, when the terminal device is handed over from a first cell managed by the first network device to a second cell managed by a second network device, a connection between the terminal device and the first cell after a receiving moment of a reference signal of the second cell is reached; and disconnecting the connection between the terminal device and the first cell. ### Claim 16 (depends on 15) The first network device according to claim 15, wherein the operations further comprise: sending conditional handover (CHO) configuration information to the terminal device, wherein the CHO configuration information comprises CHO trigger condition information corresponding to one or more candidate cells, wherein the second cell is a candidate cell, in the one or more candidate cells, that meets the CHO trigger condition information and of which a receiving moment of a reference signal is reached. ### Claim 17 (depends on 15) The first network device according to claim 15, wherein the operations further comprise: sending first configuration information to the terminal device, wherein the first configuration information is used to determine a random access resource for accessing the second cell, and the random access resource of the second cell comprises a random access moment. ### Claim 18 (depends on 15) The first network device according to claim 15, wherein the operations further comprise: sending second configuration information to the terminal device, wherein the second configuration information is used to determine a physical uplink shared channel resource for accessing the second cell, and the physical uplink shared channel resource comprises a sending moment of the physical uplink shared channel. ### Claim 19 (depends on 15) The first network device according to claim 15, wherein disconnecting the connection between the terminal device and the first cell comprises: disconnecting the connection between the terminal device and the first cell at a first moment, wherein the first moment is determined based on a moment at which second information from the terminal device is received, and the second information indicates that the terminal device is to disconnect the connection between the terminal device and the first cell; the first moment is determined based on a next receiving moment of the reference signal of the second cell after fourth information from the second network device is received, and the fourth information indicates that the terminal device has been handed over to the second cell; or the first moment is indicated by the second network device. ### Claim 20 (depends on 15) The first network device according to claim 15, wherein the reference signal of the second cell is a synchronization signal block.