# US 2020/0288365 A1 · Radio resource control rrc configuration method and related device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288365 A1 - Document ID: US20200288365A1 - Status: Published application - Kind: A1 - Application number: 16/885,002 - Filed: 2020-05-27 - Published: 2020-09-10 - Earliest claimed: 2016-05-11 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Jinhua MIAO; Jian ZHANG; Wei QUAN - Web page: https://patentgrep.com/patent/US20200288365A1 ## CPC - H04W 76/10: Connection setup - H04W 36/0027: {for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections} - H04W 36/0064: {of control information between different access points} - H04W 36/08: Reselecting an access point - H04W 36/38: by fixed network equipment - H04W 76/15: Setup of multiple wireless link connections - H04W 36/0069: {in case of dual connectivity, e.g. decoupled uplink/downlink} - H04W 36/305: {Handover due to radio link failure (control signalling for hand-off failure H04W36/0079)} - H04W 92/10: between terminal device and access point, i.e. wireless air interface - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method for configuring radio resource control includes: receiving, by a terminal device, an RRC configuration message sent by a first network device, where the RRC configuration message includes first RRC configuration content and a channel configuration parameter; configuring, by the terminal device, a first RRC connection between the terminal device and the first network device in response to the first RRC configuration content, and establishing a second RRC connection between the terminal device and a second network device based on the channel configuration parameter; the second RRC connection being configured to send a second RRC configuration content; when a radio link fails in the first RRC connection between the terminal device and the first network device, sending, the terminal device, an instruction message and a signal measurement report. A transmission delay between network devices can be reduced and signaling load of a master network device can be reduced. ## Claims ### Claim 1 A method for configuring radio resource control (RRC), the method comprising: receiving, by a terminal device, an RRC configuration message sent by a first network device, wherein the RRC configuration message comprises first RRC configuration content and a channel configuration parameter; configuring, by the terminal device, a first RRC connection between the terminal device and the first network device in response to the first RRC configuration content, and establishing a second RRC connection between the terminal device and a second network device based on the channel configuration parameter, the second RRC connection being configured to send a second RRC configuration content; and when a radio link fails in the first RRC connection between the terminal device and the first network device, sending, by the terminal device, an instruction message and a signal measurement report to the second network device. ### Claim 2 (depends on 1) The method according to claim 1, further comprising: receiving, by the terminal device, access configuration information from the first network device; and establishing, by the terminal device, a third RRC connection between the terminal device and a third network device based on the access configuration information. ### Claim 3 (depends on 2) The method according to claim 2, wherein the access configuration information is sent by the second network device. ### Claim 4 (depends on 1) The method according to claim 1, wherein the signal measurement report includes signal quality corresponding to network devices connected to the terminal device. ### Claim 5 (depends on 2) The method according to claim 2, further comprising: receiving, by the terminal device, third RRC configuration content sent by the third network device, wherein the third RRC configuration content is sent by the third network device to the first network device when the third network device allows access of the terminal device after receiving a reconfiguration request sent by the first network device, and is forwarded by the first network device to the second network device; and configuring, by the terminal device, the third RRC connection between the terminal device and the third network device in response to the third RRC configuration content. ### Claim 6 A method for configuring radio resource control (RRC), the method comprising: sending, by a first network device, an RRC configuration message to a terminal device, wherein the RRC configuration message comprises first RRC configuration content and a channel configuration parameter, wherein the first RRC configuration content is used by the terminal device to configure a first RRC connection between the terminal device and the first network device, and the channel configuration parameter is used by the terminal device to establish a second RRC connection between the terminal device and a second network device, the second RRC connection being configured to send a second RRC configuration content; and receiving, by the first network device from the terminal device, an instruction message and a signal measurement report. ### Claim 7 (depends on 6) The method according to claim 6, further comprising: sending, by the first network device, access configuration information to the second network device; the access configuration information being configured to establish a third RRC connection between the terminal device and a third network device. ### Claim 8 (depends on 6) The method according to claim 6, wherein the signal measurement report includes signal quality corresponding to network devices connected to the terminal device. ### Claim 9 (depends on 6) The method according to claim 6, wherein the signal measurement report is sent by the second network device. ### Claim 10 (depends on 6) The method according to claim 6, further comprising: sending, by the first network device, a reconfiguration request to the third network device, wherein the reconfiguration request is used to request the third network device to allow access of the terminal device, and the reconfiguration request is further used to instruct the third network device to send third RRC configuration content to the first network device; receiving, by the first network device, the third RRC configuration content sent by the third network device; and forwarding, by the first network device, the third RRC configuration content to the second network device, so that the second network device forwards the third RRC configuration content to the terminal device, wherein the third RRC configuration content is used by the terminal device to configure the third RRC connection between the terminal device and the third network device. ### Claim 11 An apparatus for configuring radio resource control (RRC), the apparatus comprising a network interface, a memory, and a processor, the memory stores a set of program code, and the processor is configured to invoke the set of program code stored in the memory to perform operations, the operations comprising: receiving an RRC configuration message sent by a first network device, wherein the RRC configuration message comprises first RRC configuration content and a channel configuration parameter; configuring a first RRC connection between the apparatus device and the first network device in response to the first RRC configuration content, and establishing a second RRC connection between the apparatus and a second network device based on the channel configuration parameter, the second RRC connection being configured to send a second RRC configuration content; and when a radio link fails in the first RRC connection between the apparatus and the first network device, sending an instruction message and a signal measurement report to the second network device. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein the operations further comprise: receiving access configuration information from the first network device; and establishing a third RRC connection between the apparatus and a third network device based on the access configuration information. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the access configuration information is sent by the second network device. ### Claim 14 (depends on 11) The apparatus according to claim 11, wherein the signal measurement report includes signal quality corresponding to network devices connected to the apparatus. ### Claim 15 (depends on 12) The apparatus according to claim 12, wherein the operations further comprise: receiving third RRC configuration content sent by the second network device, wherein the third RRC configuration content is sent by the third network device to the first network device when the third network device allows access of the apparatus after receiving a reconfiguration request sent by the first network device, and is forwarded by the first network device to the second network device; and configuring the third RRC connection between the apparatus and the third network device in response to the third RRC configuration content. ### Claim 16 An apparatus for configuring radio resource control (RRC), the apparatus comprising a network interface, a memory, and a processor, the memory stores a set of program code, and the processor is configured to invoke the set of program code stored in the memory to perform operations, the operations comprising: sending an RRC configuration message to a terminal device, wherein the RRC configuration message comprises first RRC configuration content and a channel configuration parameter, wherein the first RRC configuration content is used by the terminal device to configure a first RRC connection between the terminal device and the apparatus, and the channel configuration parameter is used by the terminal device to establish a second RRC connection between the terminal device and a second network device, the second RRC connection being configured to send a second RRC configuration content; receiving, from the terminal device, an instruction message and a signal measurement report. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the operations further comprise: sending access configuration information to the second network device; the access configuration information being configured to establish a third RRC connection between the terminal device and a third network device. ### Claim 18 (depends on 16) The apparatus according to claim 16, wherein the signal measurement report includes signal quality corresponding to network devices connected to the terminal device. ### Claim 19 (depends on 16) The apparatus according to claim 16, wherein the signal measurement report is sent by the second network device. ### Claim 20 (depends on 16) The apparatus according to claim 16, wherein the operations further comprise: sending a reconfiguration request to the third network device, wherein the reconfiguration request is used to request the third network device to allow access of the terminal device, and the reconfiguration request is further used to instruct the third network device to send third RRC configuration content to the apparatus; receiving the third RRC configuration content sent by the third network device; and forwarding the third RRC configuration content to the second network device, so that the second network device forwards the third RRC configuration content to the terminal device, wherein the third RRC configuration content is used by the terminal device to configure the third RRC connection between the terminal device and the third network device.