# US 10,484,517 B2 · Quality of service support for layer 2 based device-to-device relay > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,484,517 B2 - Document ID: US10484517B2 - Status: Granted - Kind: B2 - Application number: 15/724,848 - Filed: 2017-10-04 - Published: 2018-08-16 - Granted: 2019-11-19 - Earliest claimed: 2017-02-10 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Hong Cheng; Sudhir Kumar Baghel; Zhibin Wu - Web page: https://patentgrep.com/patent/US10484517B2 ## CPC - H04L 69/22: Parsing or analysis of headers - H04B 7/15: Active relay systems - H04L 41/0803: Configuration setting - H04L 41/5003: Managing SLA; Interaction between SLA and QoS - H04L 69/324: in the data link layer [OSI layer 2], e.g. HDLC - H04W 28/02: Traffic management, e.g. flow control or congestion control - H04W 28/0263: {involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]} - H04W 40/12: based on transmission quality or channel quality - H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows - H04W 76/14: Direct-mode setup - H04W 76/15: Setup of multiple wireless link connections - H04W 84/047: {using dedicated repeater stations} - H04B 7/15528: {Control of operation parameters of a relay station to exploit the physical medium} - H04W 76/12: Setup of transport tunnels - H04W 76/22: Manipulation of transport tunnels - H04W 88/04: adapted for relaying to or from another terminal or user - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods, systems, and devices for wireless communication are described. A transmitting device may be communicating via a relay wireless communication link. The communicating may include communications using a plurality of bearers. The transmitting device may identify a packet for transmission on the relay wireless communication link belonging to a first bearer. The first bearer may have an associated quality of service (QoS) parameter set. The transmitting device may configured a header of the packet that is processed by a relay wireless device to convey an indication of the QoS parameter set. The transmitting device may transmit the packet including the configured header on the relay wireless communication link and according to the QoS parameter set. ## Claims ### Claim 1 A method for wireless communication, comprising: communicating via a relay wireless communication link, the communicating comprising communications using a plurality of bearers; configuring a layer 2 header of a packet for transmission on the relay wireless communication link that is processed by a relay wireless device to convey an indication of a quality of service (QoS) parameter set; identifying that the packet belongs to a first bearer, the first bearer being associated with the QoS parameter set, wherein the layer 2 header is further configured to convey an indication of an allocation and retention policy (ARP) of the first bearer; and transmitting the packet comprising the configured layer 2 header on the relay wireless communication link according to the QoS parameter set. ### Claim 2 (depends on 1) The method of claim 1, further comprising: identifying a bearer mapping configuration associated with the relay wireless communication link; and configuring, according to the bearer mapping configuration, the layer 2 header of the packet to include an identifier that conveys an indication of the first bearer. ### Claim 3 (depends on 1) The method of claim 1, further comprising: configuring the relay wireless device with a mapping of the QoS parameter set indication and a proximity-based service (ProSe) per-packet priority (PPPP) indicator of the first bearer. ### Claim 4 (depends on 1) The method of claim 1, wherein: the layer 2 header comprises one of an adaptation header or a packet data convergence protocol (PDCP) header. ### Claim 5 (depends on 1) The method of claim 1, further comprising: aggregating two or more bearers into a relay bearer; and selecting at least one of the QoS parameter set associated with the first bearer or a bitrate parameter to apply to the relay bearer. ### Claim 6 (depends on 5) The method of claim 5, wherein: the bitrate parameter comprises one of an aggregate maximum bitrate (AMBR), maximum bitrate (MBR) or a guaranteed bitrate (GBR). ### Claim 7 (depends on 1) The method of claim 1, further comprising: configuring the layer 2 header to include the indication of the QoS parameter set and a proximity-based service (ProSe) per-packet priority (PPPP) indicator of the first bearer. ### Claim 8 (depends on 1) The method of claim 1, wherein the relay wireless communication link comprises one of an uplink connection or a downlink connection using at least one of a Uu radio interface between a base station and the relay wireless device or a PC5 radio interface between the relay wireless device and a remote wireless device. ### Claim 9 (depends on 1) The method of claim 1, wherein: the QoS parameter set comprises a QoS class identifier (QCI). ### Claim 10 (depends on 1) The method of claim 1, further comprising: determining the ARP parameter associated with the packet of the first bearer; and determining the transmission of the packet according to the determined ARP parameter included in the layer 2 header. ### Claim 11 A method for wireless communication, comprising: communicating via a relay wireless communication link, the communicating comprising communications using a plurality of bearers; receiving, on the relay wireless communication link, a packet comprising a layer 2 header processed by a relay wireless device that is configured to convey an indication of a quality of service (QoS) parameter set; identifying, based at least in part on the QoS parameter set, a first bearer used to convey the packet on the relay wireless communication link, the first bearer being associated with the QoS parameter set; and identifying the first bearer based at least in part on the QoS parameter set indication and an allocation and retention policy (ARP) indicator of the first bearer. ### Claim 12 (depends on 11) The method of claim 11, further comprising: identifying the first bearer based at least in part on the QoS parameter set indication and a proximity-based service (ProSe) per-packet priority (PPPP) indicator of the first bearer. ### Claim 13 (depends on 11) The method of claim 11, further comprising: identifying, during a connection establishment procedure, a mapping between the QoS parameter set and a plurality of radio bearers of the relay wireless communication link. ### Claim 14 (depends on 13) The method of claim 13, wherein: the mapping is identified according to a radio resource control (RRC) configuration message exchanged during the connection establishment procedure. ### Claim 15 A method for wireless communication, comprising: communicating via a relay wireless communication link, the communicating comprising communications using a plurality of bearers; identifying a bearer mapping configuration associated with the relay wireless communication link; identifying a packet for transmission on the relay wireless communication link belonging to a first bearer, the first bearer being associated with a quality of service (QoS) parameter set; configuring, according to the bearer mapping configuration, a layer 2 header of the packet that is processed by a relay wireless device to include an identifier, the identifier conveying information associated with the first bearer; configuring the layer 2 header to include the indication of the QoS parameter set and an allocation and retention policy (ARP) indicator of the first bearer; and transmitting the packet comprising the layer 2 header on the relay wireless communication link. ### Claim 16 (depends on 15) The method of claim 15, further comprising: selecting an identifier associated with a first virtual radio bearer, wherein the first virtual radio bearer corresponds to the first bearer and the relay wireless communication corresponds to a radio bearer. ### Claim 17 (depends on 16) The method of claim 16, further comprising: Identifying the QOS parameter set for the first bearer; and selecting the identifier based at least in part on the QoS parameter set for the first bearer. ### Claim 18 (depends on 17) The method of claim 17, wherein: the QoS parameter set comprises a QoS class identifier (QCI). ### Claim 19 (depends on 16) The method of claim 16, further comprising: configuring a buffer status report (BSR) to convey the identifier associated with the first virtual radio bearer or an aggregated traffic status from a plurality of remote wireless devices, or both. ### Claim 20 (depends on 15) The method of claim 15, wherein: the relay wireless communication link comprises one of an uplink or a downlink connection using at least one of a PC5 radio interface between the relay wireless device and a remote wireless device or a Uu radio interface between a base station and the relay wireless device. ### Claim 21 (depends on 15) The method of claim 15, wherein: the layer 2 header comprises one of an adaptation header or a packet data convergence protocol (PDCP) header. ### Claim 22 A method for wireless communication, comprising: communicating via a relay wireless communication link, the communicating comprising communications using a plurality of bearers; identifying a bearer mapping configuration associated with the relay wireless communication link; receiving a packet on a first bearer of the relay wireless communication link, the packet comprising a layer 2 header that is processed by a relay wireless device and is configured, according to the bearer mapping configuration, to include an identifier that conveys information associated with the first bearer, the first bearer being associated with a quality of service (QoS) parameter set; identifying the first bearer based at least in part on the identifier; and configuring the layer 2 header to include the indication of the QoS parameter set and an allocation and retention policy (ARP) indicator of the first bearer. ### Claim 23 (depends on 22) The method of claim 22, further comprising: determining that the identifier is associated with a first virtual radio bearer, wherein the first virtual radio bearer corresponds to the first bearer and the relay wireless communication link corresponds to a radio bearer. ### Claim 24 (depends on 22) The method of claim 22, further comprising: establishing a mapping between a plurality of identifiers and a corresponding plurality of virtual radio bearers, wherein each virtual radio bearer corresponds to a bearer of the plurality of bearers. ### Claim 25 (depends on 24) The method of claim 24, wherein: each bearer of the plurality of bearers comprises an associated QOS parameter set. ### Claim 26 (depends on 24) The method of claim 24, wherein: the mapping is established during a connection establishment procedure and is exchanged using a radio resource control (RRC) configuration message. ### Claim 27 (depends on 22) The method of claim 22, further comprising: determining that the layer 2 header includes a plurality of identifiers, each identifier conveying information associated with a corresponding bearer; and identifying the first bearer from among the plurality of identifiers. ### Claim 28 (depends on 22) The method of claim 22, further comprising: determining, based at least in part on the identifier, a quality of service (QoS) parameter set for the first bearer.