# US 11,910,235 B2 · Data processing method, information configuration method, terminal, and network device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,235 B2 - Document ID: US11910235B2 - Status: Granted - Kind: B2 - Application number: 17/378,541 - Filed: 2021-07-16 - Published: 2021-11-04 - Granted: 2024-02-20 - Earliest claimed: 2019-01-18 - Assignees: Vivo Mobile Communication Co., Ltd. - Applicants: Vivo Mobile Communication Co., Ltd. - Inventors: Yanxia Zhang; Yumin Wu - Web page: https://patentgrep.com/patent/US11910235B2 ## CPC - H04W 28/06: Optimizing {the usage of the radio link}, e.g. header compression, information sizing {, discarding information (system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365)} - H04W 76/22: Manipulation of transport tunnels - H04W 76/27: Transitions between radio resource control [RRC] states - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A data processing method includes: determining, by a PDCP entity of a terminal, at least one first transmission path that is in a transmission path set currently in an activated state and that needs to be changed from the activated state to a deactivated state; and instructing, by the PDCP entity of the terminal, a RLC entity corresponding to the first transmission path to discard duplicated data, in a case where the at least one first transmission path is not all transmission paths in the transmission path set. The transmission path set comprises at least one transmission path. ## Claims ### Claim 1 A data processing method, applied to a terminal and comprising: determining, by a packet data convergence protocol (PDCP) entity of the terminal, at least one first transmission path that is in a transmission path set currently in an activated state and that needs to be changed from the activated state to a deactivated state; and instructing, by the PDCP entity of the terminal, a radio link control (RLC) entity corresponding to the first transmission path to discard duplicated data, in a case where the at least one first transmission path is not all transmission paths in the transmission path set; wherein the transmission path set comprises at least one transmission path. ### Claim 2 (depends on 1) The data processing method according to claim 1, before the determining, by the PDCP entity of the terminal, at least one first transmission path that is in a transmission path set currently in an activated state and that needs to be changed from the activated state to a deactivated state, further comprising: obtaining configuration information of a PDCP data duplication function of a first radio bearer (RB) of the terminal; wherein the PDCP data duplication function corresponds to at least three transmission paths. ### Claim 3 (depends on 2) The data processing method according to claim 2, wherein the configuration information comprises an initial state of the PDCP data duplication function of the first RB; and the initial state comprises the activated state or the deactivated state. ### Claim 4 (depends on 3) The data processing method according to claim 3, wherein the initial state is indicated by using the transmission path set. ### Claim 5 (depends on 3) The data processing method according to claim 3, wherein the determining, by the PDCP entity of the terminal, at least one first transmission path that is in a transmission path set currently in an activated state and that needs to be changed from the activated state to a deactivated state comprises: obtaining, by the PDCP entity of the terminal, indication information, wherein the indication information is used to indicate a transmission path that needs to be deactivated; and determining, by the PDCP entity of the terminal according to the indication information, the at least one first transmission path that is in the transmission path set currently in the activated state and that needs to be changed from the activated state to the deactivated state. ### Claim 6 (depends on 5) The data processing method according to claim 5, wherein the obtaining, by the PDCP entity of the terminal, indication information comprises: receiving, by the PDCP entity of the terminal, indication information sent by a network device by using preset signaling; or obtaining, by the PDCP entity of the terminal, indication information sent by a higher layer of the terminal; wherein the preset signaling comprises media access control (MAC) signaling or radio resource control (RRC) signaling. ### Claim 7 (depends on 2) The data processing method according to claim 2, wherein the configuration information comprises a main transmission path of the first RB; or the configuration information comprises a main transmission path of the first RB and an initial state of the PDCP data duplication function of the first RB; wherein the initial state comprises the activated state or the deactivated state. ### Claim 8 (depends on 7) The data processing method according to claim 7, wherein the initial state is indicated in at least one of following manners: indication information of a preset quantity of bits; or the transmission path set. ### Claim 9 (depends on 7) The data processing method according to claim 7, wherein the determining, by the PDCP entity of the terminal, at least one first transmission path that is in a transmission path set currently in an activated state and that needs to be changed from the activated state to a deactivated state comprises: receiving radio resource control (RRC) signaling sent by a network device for reconfiguring the main transmission path; and determining, by the PDCP entity of the terminal based on the RRC signaling, the at least one first transmission path that is in the transmission path set currently in the activated state and that needs to be changed from the activated state to the deactivated state; wherein the RRC signaling carries an initial state of a PDCP data duplication function obtained after the main transmission path is reconfigured. ### Claim 10 (depends on 1) The data processing method according to claim 1, after the determining, by the PDCP entity of the terminal, at least one first transmission path that is in a transmission path set currently in an activated state and that needs to be changed from the activated state to a deactivated state, the data processing method further comprises: in the case where the at least one first transmission path is all transmission paths in the transmission path set, transmitting duplicated data in the RLC entity corresponding to the first transmission path. ### Claim 11 (depends on 10) The data processing method according to claim 10, wherein the transmitting duplicated data in the RLC entity corresponding to the first transmission path comprises: transmitting, according to a preset rule, the duplicated data in the RLC entity corresponding to the first transmission path; wherein the preset rule comprises: a logical channel limitation corresponding to the RLC entity corresponding to the first transmission path is configured for the PDCP data duplication function, and when data in the RLC entity corresponding to the first transmission path is transmitted, the logical channel limitation is not used for a logical channel corresponding to the RLC entity corresponding to the first transmission path. ### Claim 12 An information configuration method, applied to a network device and comprising: sending configuration information of a packet data convergence protocol (PDCP) data duplication function of a first radio bearer (RB) to a terminal; and sending indication information to the terminal by using preset signaling, the indication information being used to indicate a transmission path that needs to be deactivated; wherein the PDCP data duplication function corresponds to at least three transmission paths. ### Claim 13 (depends on 12) The information configuration method according to claim 12, wherein the configuration information comprises an initial state of the PDCP data duplication function of the first RB; and the initial state comprises an activated state or a deactivated state. ### Claim 14 (depends on 13) The information configuration method according to claim 13, wherein the initial state is indicated by using a transmission path set. ### Claim 15 (depends on 12) The information configuration method according to claim 12, wherein the configuration information comprises a main transmission path of the first RB; or the configuration information comprises a main transmission path of the first RB and an initial state of the PDCP data duplication function of the first RB; wherein the initial state comprises an activated state or a deactivated state. ### Claim 16 (depends on 15) The information configuration method according to claim 15, wherein the initial state is indicated in at least one of following manners: indication information of a preset quantity of bits; or a transmission path set. ### Claim 17 A terminal, comprising: a memory, a processor, and a program that is stored in the memory and executable on the processor, wherein the program, when executed by the processor, causes a packet data convergence protocol (PDCP) entity of the terminal to perform: determining at least one first transmission path that is in a transmission path set currently in an activated state and that needs to be changed from the activated state to a deactivated state; and instructing a radio link control (RLC) entity corresponding to the first transmission path to discard duplicated data, in a case where the at least one first transmission path is not all transmission paths in the transmission path set; wherein the transmission path set comprises at least one transmission path. ### Claim 18 (depends on 17) The terminal according to claim 17, wherein the program, when executed by the processor, causes the PDCP entity of the terminal to further perform: obtaining configuration information of a PDCP data duplication function of a first radio bearer (RB) of the terminal, wherein the PDCP data duplication function corresponds to at least three transmission paths. ### Claim 19 (depends on 18) The terminal according to claim 18, wherein the configuration information comprises an initial state of the PDCP data duplication function of the first RB; and the initial state comprises the activated state or the deactivated state. ### Claim 20 (depends on 12) A network device, comprising: a memory, a processor, and a program that is stored in the memory and executable on the processor, wherein the program, when executed by the processor, causes the network device to perform steps of the information configuration method according to claim 12.