# US 10,873,479 B2 · Techniques and apparatuses for forwarding in multi-hop wireless networks via multi-layer tunneling and centralized control > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,479 B2 - Document ID: US10873479B2 - Status: Granted - Kind: B2 - Application number: 16/027,976 - Filed: 2018-07-05 - Published: 2019-02-07 - Granted: 2020-12-22 - Earliest claimed: 2017-08-03 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Karl Georg Hampel; Junyi Li; Hong Cheng; Navid Abedini; Sundar Subramanian; Muhammad Nazmul Islam - Web page: https://patentgrep.com/patent/US10873479B2 ## CPC - H04B 7/2606: {Arrangements for base station coverage control, e.g. by using relays in tunnels} - H04B 7/155: Ground-based stations (H04B7/204 takes precedence) - H04B 7/15528: {Control of operation parameters of a relay station to exploit the physical medium} - H04L 12/4633: {Interconnection of networks using encapsulation techniques, e.g. tunneling} - H04L 41/08: Configuration management of networks or network elements (address allocation H04L61/50) - H04W 76/11: Allocation or use of connection identifiers - H04W 76/12: Setup of transport tunnels - H04W 76/15: Setup of multiple wireless link connections - H04W 88/04: adapted for relaying to or from another terminal or user - H04L 41/0894: Policy-based network configuration management - H04W 76/27: Transitions between radio resource control [RRC] states - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication relay may receive configuration information identifying a first mapping between a first radio bearer and a first tunnel identifier; obtain a second mapping between a second radio bearer and at least one of the first radio bearer or the first tunnel identifier; and/or transmit data, received on the first radio bearer, on the second radio bearer, wherein the data is transmitted with the first tunnel identifier. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a wireless communication relay, comprising: receiving first configuration information identifying a first mapping between a first radio bearer and a first tunnel identifier; obtaining a second mapping between a second radio bearer and at least one of the first radio bearer or the first tunnel identifier; transmitting first data, received on the first radio bearer, on the second radio bearer, wherein the first data is transmitted with the first tunnel identifier; receiving second configuration information identifying a third mapping between a third radio bearer and a second tunnel identifier; and transmitting second data, received on the third radio bearer, on the second radio bearer. ### Claim 2 (depends on 1) The method of claim 1, wherein the first configuration information is received based at least in part on a request that includes a relay identifier corresponding to the wireless communication relay. ### Claim 3 (depends on 1) The method of claim 1, wherein the first radio bearer is associated with at least one of an access link, a backhaul link, or a fronthaul link; and wherein the second radio bearer is associated with at least one of a backhaul link or a fronthaul link. ### Claim 4 (depends on 1) The method of claim 1, wherein the data is first data; and wherein the method further comprises forwarding second data on the first radio bearer, wherein the second data is associated with the first tunnel identifier and is received on the second radio bearer. ### Claim 5 (depends on 1) The method of claim 1, wherein the second radio bearer is configured based at least in part on a configuration message or a determination by the wireless communication relay, wherein the determination is based at least in part on a policy or rule. ### Claim 6 (depends on 5) The method of claim 5, wherein the policy or rule relates to at least one of a traffic type, a traffic class, a bearer priority, or a bearer activity. ### Claim 7 (depends on 5) The method of claim 5, wherein information identifying the policy or rule is received on a radio bearer. ### Claim 8 (depends on 1) The method of claim 1, wherein the first radio bearer and the second radio bearer use a frame structure that is synchronized between the first radio bearer and the second radio bearer. ### Claim 9 (depends on 1) The method of claim 1, wherein information received on the first radio bearer pertains to an uplink and information received on the second radio bearer pertains to a downlink. ### Claim 10 (depends on 1) The method of claim 1, wherein the method further comprises: obtaining a fourth mapping between the second radio bearer and the third radio bearer; and receiving the second data on the third radio bearer; and wherein the second data is transmitted in association with the second tunnel identifier. ### Claim 11 (depends on 1) The method of claim 1, wherein the third radio bearer is associated with a different wireless link than the first radio bearer or the second radio bearer. ### Claim 12 (depends on 1) The method of claim 1, further comprising forwarding third data on the third radio bearer, wherein the third data is associated with the second tunnel identifier and is received on the second radio bearer. ### Claim 13 (depends on 1) The method of claim 1, wherein the first data is associated with a different priority or quality of service class than the second data. ### Claim 14 (depends on 1) The method of claim 1, wherein the first data is associated with a different plane, of a control plane and a data plane, than the second data. ### Claim 15 (depends on 1) The method of claim 1, wherein the first configuration information is received over a radio resource control (RRC) connection. ### Claim 16 (depends on 1) The method of claim 1, wherein the first radio bearer and the second radio bearer are identified by respective logical channel identifiers, and wherein a link associated with at least one of the first radio bearer or the second radio bearer is identified by a radio network temporary identifier. ### Claim 17 (depends on 1) The method of claim 1, wherein the first tunnel identifier is associated with at least one of a General Packet Radio Service Tunneling Protocol-User (GTP-U) protocol or an F1 Application Protocol. ### Claim 18 (depends on 1) The method of claim 1, wherein the first radio bearer is associated with a first formed beam and the second radio bearer is associated with a second formed beam. ### Claim 19 A method of wireless communication performed by a network node, comprising: receiving first configuration information identifying a first flow identifier pertaining to a device, wherein the first configuration information further identifies a first tunnel identifier associated with a first tunnel, and wherein the first configuration information identifies at least one of a first radio bearer identifier associated with a first radio bearer or a second tunnel identifier associated with a second tunnel; providing data, associated with the first flow identifier, in association with the first tunnel identifier and via the first radio bearer or the second tunnel to the device, based at least in part on the first radio bearer identifier or the second tunnel identifier; identifying second configuration information pertaining to a second flow identifier; and providing other data based at least in part on the other data being associated with the second flow identifier. ### Claim 20 (depends on 19) The method of claim 19, wherein the device is at least one of a user equipment or a wireless communication relay. ### Claim 21 (depends on 19) The method of claim 19, wherein the second flow identifier is associated with the device. ### Claim 22 (depends on 19) The method of claim 19, wherein the device is a first device; and wherein the second flow identifier is associated with a second device. ### Claim 23 (depends on 19) The method of claim 19, wherein the first configuration information identifies a plurality of tunnel identifiers; and wherein providing the data comprises providing the data in association with the plurality of tunnel identifiers. ### Claim 24 (depends on 19) The method of claim 19, wherein the data is provided on a downlink of a radio bearer. ### Claim 25 A method of wireless communication performed by a network node, comprising: receiving a request including a relay identifier for a wireless communication relay and a device identifier for a device; selecting at least one of a first radio bearer or a first tunnel, associated with a first tunnel identifier, for communication of data with the device via the wireless communication relay; providing, to the wireless communication relay, first configuration information for a second radio bearer and a second tunnel associated with a second tunnel identifier, wherein the wireless communication relay is configured to communicate the data from at least one of the first radio bearer or the first tunnel to at least one of the second radio bearer or the second tunnel; and providing second configuration information identifying at least one of the first radio bearer or the first tunnel identifier. ### Claim 26 (depends on 25) The method of claim 25, wherein the first configuration information is stored by the network node in association with the device identifier. ### Claim 27 (depends on 25) The method of claim 25, further comprising: determining user-plane configuration information based at least in part on the first configuration information; and configuring communication of a user-plane central unit of the network node with at least one of the wireless communication relay or the device using the user-plane configuration information. ### Claim 28 A wireless communication relay, comprising: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive first configuration information identifying a first mapping between a first radio bearer and a first tunnel identifier; obtain a second mapping between a second radio bearer and at least one of the first radio bearer or the first tunnel identifier; transmit first data, received on the first radio bearer, on the second radio bearer, wherein the first data is transmitted with the first tunnel identifier; receive second configuration information identifying a third mapping between a third radio bearer and a second tunnel identifier; and transmit second data, received on the third radio bearer, on the second radio bearer. ### Claim 29 (depends on 28) The wireless communication relay of claim 28, wherein the first configuration information is received based at least in part on a request that includes a relay identifier corresponding to the wireless communication relay. ### Claim 30 (depends on 28) The wireless communication relay of claim 28, wherein the first radio bearer is associated with at least one of an access link, a backhaul link, or a fronthaul link, and wherein the second radio bearer is associated with at least one of a backhaul link or a fronthaul link.