# US 2021/0345206 A1 · Inter-donor cell management in wireless communication network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345206 A1 - Document ID: US20210345206A1 - Status: Published application - Kind: A1 - Application number: 17/239,432 - Filed: 2021-04-23 - Published: 2021-11-04 - Earliest claimed: 2020-04-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Naeem AKL; Karl Georg HAMPEL; Navid ABEDINI; Jianghong LUO; Luca BLESSENT; Junyi LI; Tao LUO - Web page: https://patentgrep.com/patent/US20210345206A1 ## CPC - H04W 36/08: Reselecting an access point - H04W 36/0064: {of control information between different access points} - H04W 48/16: Discovering, processing access restriction or access information - H04W 84/047: {using dedicated repeater stations} - H04W 88/085: {Access point devices with remote components} - H04W 92/20: between access points - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Aspects relate to technologies and techniques for migrating a radio access network (RAN) node associated with a first donor node in a communications network. The first donor node may receive, via a first communications interface, such as an F1-C or resource control (RRC) interface, cell configuration data associated with one or more cells of the RAN node activated by the first donor node. The first donor node may process the cell configuration data and transit the cell configuration data, using a second communications interface, such as an Xn or X2 interface, to a second donor node for use in migrating the RAN node from the first donor node to the second donor node. ## Claims ### Claim 1 A method of migrating a radio access network (RAN) node associated with a first donor node in a communications network, comprising: receiving, in the first donor node via a first communications interface, cell configuration data associated with the RAN node, the cell configuration data comprising data associated with one or more cells of the RAN node activated by the first donor node; processing the cell configuration data for migrating the one or more cells to a second donor node; and transmitting the processed cell configuration data, via a second communications interface, to the second donor node for use in migrating the RAN node from the first donor node to the second donor node. ### Claim 2 (depends on 1) The method of claim 1, wherein the first communications interface is one of a F1 control (F1-C) interface or a radio resource control (RRC) interface; and the second communications interface is one of an Xn interface or an X2 interface. ### Claim 3 (depends on 1) The method of claim 1, wherein the first donor node comprises a source Integrated Access and Backhaul (IAB) donor node. ### Claim 4 (depends on 3) The method of claim 3, wherein the cell configuration data comprises one or more of a NR Cell Global Identity (NCGI) comprising an identifier of the first donor node, physical cell identifier (PCI) data, an activation status, or cell information. ### Claim 5 (depends on 4) The method of claim 4, wherein the cell information comprises one or more of a Public Land Mobile Network (PLMN) identifier (ID), an area code, a frequency or bandwidth, a cell direction, a cell size, a cell mode, a time-division duplex (TDD) configuration, a measurement timing configuration, cell access information, or connectivity support information. ### Claim 6 (depends on 1) The method of claim 1, further comprising: obtaining a second cell configuration data associated with the RAN node comprising data associated with one or more cells of the RAN node activated by the first donor node; and transmitting the second cell configuration data via the second communications interface to the second donor node for use in migrating the RAN node from the first donor node to the second donor node. ### Claim 7 (depends on 6) The method of claim 6, wherein the obtaining the second cell configuration data associated with the RAN node comprises deriving the second cell information from the first cell configuration via mapping. ### Claim 8 (depends on 6) The method of claim 6, wherein the obtaining the second cell configuration data associated with the RAN node comprises receiving the second cell configuration data from the RAN node via the first communications interface. ### Claim 9 (depends on 6) The method of claim 6, wherein the obtaining the second cell configuration data associated with the RAN node comprises receiving the second cell configuration data from the second donor node via the second communications interface. ### Claim 10 (depends on 9) The method of claim 9, wherein the second cell configuration comprises mapping data for mapping between the first cell configuration data and the second cell configuration data. ### Claim 11 (depends on 1) The method of claim 1, wherein the transmitting the processed cell configuration data comprises transmitting the processed cell configuration data in one of a handover preparation message, a secondary node addition preparation message, a secondary node modification message or a secondary node change message. ### Claim 12 (depends on 1) The method of claim 1, wherein the communications network comprises an Integrated Access and Backhaul (IAB) network. ### Claim 13 (depends on 12) The method of claim 12, wherein the first donor node comprises a first IAB donor node, and the second donor node comprises a second IAB donor node. ### Claim 14 A first donor node within a wireless communication network, comprising: a first communications interface; a second communications interface; a memory; and a processor communicatively coupled to the transceiver and the memory, wherein the processor and the memory are configured to: receive, in the first donor node via a first communications interface, cell configuration data associated with the RAN node, the cell configuration data comprising data associated with one or more cells of the RAN node activated by the first donor node; process the cell configuration data for migrating the one or more cells to a second donor node; and transmit the processed cell configuration data, via a second communications interface, to the second donor node for use in migrating the RAN node from the first donor node to the second donor node. ### Claim 15 (depends on 14) The first donor node of claim 14, wherein the first communications interface is one of a F1 control (F1-C) interface or a radio resource control (RRC) interface; and the second communications interface is one of an Xn interface or an X2 interface. ### Claim 16 (depends on 14) The first donor node of claim 14, wherein the first donor node comprises a source donor node. ### Claim 17 (depends on 16) The first donor node of claim 16, wherein the cell configuration data comprises one or more of a NR Cell Global Identity (NCGI) comprising an identifier of the first donor node, physical cell identifier (PCI) data, an activation status, or cell information. ### Claim 18 (depends on 17) The first donor node of claim 17, wherein the cell information comprises one or more of a Public Land Mobile Network (PLMN) identifier (ID), an area code, a frequency or bandwidth, a cell direction, a cell size, a cell mode, a time-division duplex (TDD) configuration, a measurement timing configuration, cell access information, or connectivity support information. ### Claim 19 (depends on 14) The first donor node of claim 14, further comprising: obtaining a second cell configuration data associated with the RAN node comprising data associated with one or more cells of the RAN node activated by the first donor node; and transmitting the second cell configuration data via the second communications interface to the second donor node for use in migrating the RAN node from the first donor node to the second donor node. ### Claim 20 (depends on 19) The first donor node of claim 19, wherein the obtaining the second cell configuration data associated with the RAN node comprises deriving the second cell information from the first cell configuration via mapping. ### Claim 21 (depends on 19) The first donor node of claim 19, wherein the obtaining the second cell configuration data associated with the RAN node comprises receiving the second cell configuration data from the RAN node via the first communications interface. ### Claim 22 (depends on 19) The first donor node of claim 19, wherein the obtaining the second cell configuration data associated with the RAN node comprises receiving the second cell configuration data from the second donor node via the second communications interface. ### Claim 23 (depends on 22) The first donor node of claim 22, wherein the second cell configuration comprises mapping data for mapping between the first cell configuration data and the second cell configuration data. ### Claim 24 (depends on 14) The first donor node of claim 14, wherein the transmitting the processed cell configuration data comprises transmitting the processed cell configuration data in one of a handover preparation messages, a secondary node addition preparation message, a secondary node modification message or a secondary node change message. ### Claim 25 (depends on 14) The first donor node of claim 14, wherein the communications network comprises an Integrated Access and Backhaul (IAB) network. ### Claim 26 (depends on 25) The first donor node of claim 25, wherein the first donor node comprises a first IAB donor node, and the second donor node comprises a second IAB donor node. ### Claim 27 A first donor node within a wireless communication network, comprising: means for receiving, in the first donor node via a first communications interface, cell configuration data associated with the RAN node, the cell configuration data comprising data associated with one or more cells of the RAN node activated by the first donor node; means for processing the cell configuration data for migrating the one or more cells to a second donor node; and means for transmitting the processed cell configuration data, via a second communications interface, to the second donor node for use in migrating the RAN node from the first donor node to the second donor node. ### Claim 28 (depends on 27) The first donor node of claim 27, wherein the first communications interface is one of a F1-C or radio resource control (RRC) interface; and the second communications interface is one of an Xn or X2 interface. ### Claim 29 (depends on 27) The first donor node of claim 27, further comprising: means for obtaining a second cell configuration data associated with the RAN node comprising data associated with one or more cells of the RAN node activated by the second donor node; and means for transmitting the second cell configuration data via the second communications interface to the second donor node for use in migrating the RAN node from the first donor node to the second donor node. ### Claim 30 A non-transitory computer-readable medium having stored therein instructions executable by one or more processors of a first donor node to: receive, in the first donor node via a first communications interface, cell configuration data associated with the RAN node, the cell configuration data comprising data associated with one or more cells of the RAN node activated by the first donor node; process the cell configuration data for migrating the one or more cells to a second donor node; and transmit the processed cell configuration data, via a second communications interface, to the second donor node for use in migrating the RAN node from the first donor node to the second donor node.