# US 12,225,564 B2 · Wireless communication method, source node and target node > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,564 B2 - Document ID: US12225564B2 - Status: Granted - Kind: B2 - Application number: 16/982,340 - Filed: 2019-03-08 - Published: 2021-01-14 - Granted: 2025-02-11 - Earliest claimed: 2018-03-19 - Assignees: Vivo Mobile Communication Co., Ltd. - Applicants: Vivo Mobile Communication Co., Ltd. - Inventors: Qian Zheng; Yumin Wu - Web page: https://patentgrep.com/patent/US12225564B2 ## CPC - H04W 16/10: Dynamic resource partitioning - H04W 72/53: based on regulatory allocation policies - H04W 36/0083: {Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists} - H04W 72/27: between access points - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 36/00837: {Determination of triggering parameters for hand-off} - H04W 84/18: Self-organising networks, e.g. ad-hoc networks or sensor networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A wireless communication method, a source node and a target node are provided. The method includes: acquiring at least one candidate cell resource configuration, where the at least one candidate cell resource configuration is configured by a target node based on at least one triggering condition; in a case that the at least one triggering condition has a satisfied triggering condition, determining a candidate cell resource configuration associated with a target triggering condition in the satisfied triggering condition as a target cell resource configuration; and initiating a communication process associated with the target triggering condition, based on the target cell resource configuration. ## Claims ### Claim 1 A wireless communication method, applied to a user equipment, comprising: acquiring at least one candidate cell resource configuration, wherein the at least one candidate cell resource configuration is configured by a target node based on at least one triggering condition; in a case that the at least one triggering condition has a satisfied triggering condition, determining a candidate cell resource configuration associated with a target triggering condition in the satisfied triggering condition as a target cell resource configuration; and initiating a communication process associated with the target triggering condition, based on the target cell resource configuration; wherein the at least one triggering condition corresponds to service requirements, and the at least one triggering condition comprises one or more of: a data packet transmission delay is greater than or equal to a first preset threshold; a packet loss rate of data packet is greater than or equal to a second preset threshold; a data transmission rate is greater than or equal to a third preset threshold; or a secondary cell group (SCG) access failure; wherein the communication process associated with the target triggering condition comprises one of: in a case that the data transmission rate is greater than or equal to the third preset threshold, initiating a secondary node (SN) Addition process for the target node; in a case that the data packet transmission delay is greater than or equal to the first preset threshold, initiating an SN Modification process for a source node; or in a case of a secondary cell group (SCG) access failure, initiating an SN Change process for the target node; wherein there exist a plurality of satisfied triggering conditions, prior to the determining the candidate cell resource configuration associated with the target triggering condition in the satisfied triggering condition as the target cell resource configuration, the method further comprises: selecting the target triggering condition from the satisfied triggering conditions according to preset triggering condition priorities. ### Claim 2 (depends on 1) The wireless communication method according to claim 1, wherein the acquiring the at least one candidate cell resource configuration comprises: receiving a radio resource control (RRC) reconfiguration message from the source node, wherein the RRC reconfiguration message comprises the at least one candidate cell resource configuration. ### Claim 3 (depends on 2) The wireless communication method according to claim 2, wherein the at least one triggering condition is agreed by an agreement; or the RRC reconfiguration message further comprises the at least one triggering condition. ### Claim 4 (depends on 2) The wireless communication method according to claim 2, wherein the communication process associated with the target triggering condition further comprises a handover process. ### Claim 5 (depends on 2) The wireless communication method according to claim 2, wherein in a case that the method is applied in a dual connectivity scenario, the source node is a source master node or a source secondary node, wherein the receiving the RRC reconfiguration message from the source node comprises: receiving the RRC reconfiguration message from the source master node or the source secondary node. ### Claim 6 (depends on 1) A user equipment, comprising: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the wireless communication method according to claim 1. ### Claim 7 A wireless communication method, applied to a source node, comprising: receiving at least one candidate cell resource configuration sent by a target node, wherein the at least one candidate cell resource configuration is configured by the target node based on at least one triggering condition, the at least one candidate cell resource configuration is configured to, in a case that a user equipment determines that the at least one triggering condition has a satisfied triggering condition, enable the user equipment to determine a candidate cell resource configuration associated with a target triggering condition in the satisfied triggering condition as a target cell resource configuration and initiate, based on the target cell resource configuration, a communication process associated with the target triggering condition; and sending a radio resource control (RRC) reconfiguration message to a user equipment, wherein the RRC reconfiguration message comprises the at least one candidate cell resource configuration; wherein the at least one triggering condition corresponds to service requirements, and the at least one triggering condition comprises one or more of: a data packet transmission delay is greater than or equal to a first preset threshold; a packet loss rate of data packet is greater than or equal to a second preset threshold; a data transmission rate is greater than or equal to a third preset threshold; or a secondary cell group (SCG) access failure; wherein the communication process associated with the target triggering condition comprises one of: in a case that the data transmission rate is greater than or equal to the third preset threshold, initiating a secondary node (SN) Addition process for the target node; in a case that the data packet transmission delay is greater than or equal to the first preset threshold, initiating an SN Modification process for a source node; or in a case of a secondary cell group (SCG) access failure, initiating an SN Change process for the target node; wherein the at least one triggering condition is agreed by an agreement, and the method further comprises: sending a handover request sent to the target node, wherein the handover request contains 1 bit to indicate that the handover request is a condition-based handover request. ### Claim 8 (depends on 7) The wireless communication method according to claim 7, wherein the at least one triggering condition is agreed by an agreement, or the RRC reconfiguration message further comprises the at least one triggering condition. ### Claim 9 (depends on 8) The wireless communication method according to claim 8, wherein the at least one triggering condition is determined by the source node, prior to the receiving the candidate cell resource configuration sent by the target node, the method further comprises: sending the at least one triggering condition to the target node; or, the triggering condition is agreed by the source node and the target node, prior to the receiving the at least one candidate cell resource configuration sent by the target node, the method further comprises: receiving candidate triggering conditions sent by the target node; determining the at least one triggering condition from the candidate triggering conditions; and sending the at least one triggering condition to the target node; or, the at least one triggering condition is determined by the target node, and the method further comprises: receiving the at least one triggering condition sent by the target node. ### Claim 10 (depends on 9) The wireless communication method according to claim 9, wherein the at least one triggering condition is determined by the target node from candidate triggering conditions, prior to the receiving the at least one triggering condition sent by the target node, the method further comprises: sending the candidate triggering conditions to the target node. ### Claim 11 (depends on 7) The wireless communication method according to claim 7, wherein in a case that the method is applied in a dual connectivity scenario, the source node is a source master node or a source secondary node, and the target node is a target secondary node. ### Claim 12 (depends on 7) A source node, comprising: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the wireless communication method according to claim 7. ### Claim 13 A wireless communication method, applied to a target node, comprising: configuring at least one candidate cell resource configuration based on at least one triggering condition, wherein the at least one candidate cell resource configuration is configured to, in a case that a user equipment determines that the at least one triggering condition has a satisfied triggering condition, enable the user equipment to determine a candidate cell resource configuration associated with a target triggering condition in the satisfied triggering condition as a target cell resource configuration and initiate, based on the target cell resource configuration, a communication process associated with the target triggering condition; and sending the at least one candidate cell resource configuration to a source node, wherein the source node is configured to forward the at least one candidate cell resource configuration to the user equipment; wherein the at least one triggering condition corresponds to service requirements, and the at least one triggering condition comprises one or more of: a data packet transmission delay is greater than or equal to a first preset threshold; a packet loss rate of data packet is greater than or equal to a second preset threshold; a data transmission rate is greater than or equal to a third preset threshold; or a secondary cell group (SCG) access failure; wherein the communication process associated with the target triggering condition comprises one of: in a case that the data transmission rate is greater than or equal to the third preset threshold, initiating a secondary node (SN) Addition process for the target node; in a case that the data packet transmission delay is greater than or equal to the first preset threshold, initiating an SN Modification process for the source node; or in a case of a secondary cell group (SCG) access failure, initiating an SN Change process for the target node; wherein the at least one triggering condition is agreed by an agreement, and the method further comprises: sending a handover request sent to the target node, wherein the handover request contains 1 bit to indicate that the handover request is a condition-based handover request. ### Claim 14 (depends on 13) The wireless communication method according to claim 13, wherein the at least one triggering condition is determined by the source node, prior to the configuring the at least one candidate cell resource configuration based on the at least one triggering condition, the method further comprises: receiving the at least one triggering condition sent by the source node; or, the triggering condition is agreed by the source node and the target node, and the triggering condition is determined by the source node from candidate triggering conditions, prior to the configuring the at least one candidate cell resource configuration based on the at least one triggering condition, the method further comprises: sending the candidate triggering conditions to the source node; and receiving the at least one triggering condition sent by the source node; or, the at least one triggering condition is determined by the target node, and the method further comprises: sending the at least one triggering condition to the source node; or, the at least one triggering condition is determined by an agreement. ### Claim 15 (depends on 14) The wireless communication method according to claim 14, wherein the at least one triggering condition is determined by the target node from candidate triggering conditions, prior to the configuring the at least one candidate cell resource configuration based on the at least one triggering condition, the method further comprises: receiving candidate triggering conditions sent by the source node; and determining the at least one triggering condition from the candidate triggering conditions. ### Claim 16 (depends on 13) The wireless communication method according to claim 13, wherein in a case that the method is applied in a dual connectivity scenario, the source node is a source master node or a source secondary node, and the target node is a target secondary node. ### Claim 17 (depends on 13) A target node, comprising: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the wireless communication method according to claim 13.