# US 12,120,545 B2 · Cross-layer quality of service (QoS) indication for sidelink communications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,120,545 B2 - Document ID: US12120545B2 - Status: Granted - Kind: B2 - Application number: 17/089,588 - Filed: 2020-11-04 - Published: 2021-02-18 - Granted: 2024-10-15 - Earliest claimed: 2019-11-06 - Assignees: Intel Corporation - Applicants: Intel Corporation - Inventors: Ansab Ali; Sangeetha L. Bangolae; Youn Hyoung Heo - Web page: https://patentgrep.com/patent/US12120545B2 ## CPC - H04W 28/0252: {per individual bearer or channel (dynamic wireless traffic scheduling H04W72/12)} - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 28/04: Error control - H04W 72/569: {of the traffic information} - H04W 80/02: Data link layer protocols - H04W 88/02: Terminal devices - H04W 92/18: between terminal devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Technologies and techniques associated with cross-layer quality of service (QOS) indication for sidelink communications are provided. In particular, mechanisms to handle priority and/or communication range requirements for medium access control (MAC) protocol data units (PDUs) with multiple logical channels (LCHs) are described. Other technologies and techniques may be described and/or claimed. ## Claims ### Claim 1 One or more non-transitory computer-readable media (NTCRM) comprising instructions, wherein execution of the instructions by one or more processors cause a user equipment (UE) to: when a medium access control (MAC) protocol data unit (PDU) with data from one or more logical channels (LCHs) has been obtained for a sidelink transmission, identify a four-bit LCH priority of the MAC PDU as a priority value of a highest priority LCH among the one or more LCHs, wherein the four-bit LCH priority is one of a plurality of four-bit LCH priorities; identify, based on a 2:1 mapping of the plurality of four-bit LCH priorities to a plurality of three-bit sidelink control information (SCI) priorities, a three-bit SCI priority of the plurality of three-bit SCI priorities of the MAC PDU, wherein the 2:1 mapping is a mapping of two of the plurality of four-bit LCH priorities to a single one of the plurality of three-bit SCI priorities; when hybrid automatic repeat request (HARQ) feedback is enabled for groupcast, and when negative-only acknowledgement is to be used for the HARQ feedback, set a communication range requirement to be a longest communication range of the one or more LCHs in the MAC PDU; and cause the sidelink transmission of the MAC PDU based on the set communication range requirement and the identified SCI priority of the MAC PDU. ### Claim 2 (depends on 1) The one or more NTCRM of claim 1, wherein the MAC PDU is to be transmitted on a sidelink channel. ### Claim 3 (depends on 1) The one or more NTCRM of claim 1, wherein, to cause the sidelink transmission of the MAC PDU, the execution of the instructions is to cause the UE to instruct a physical layer entity to generate the sidelink transmission including the MAC PDU. ### Claim 4 (depends on 1) The one or more NTCRM of claim 1, wherein the execution of the instructions is to cause the UE to map the data from the MAC PDU to one or more transport blocks for the sidelink transmission. ### Claim 5 (depends on 1) The one or more NTCRM of claim 1, wherein the UE is a vehicle-to-everything (V2X) UE. ### Claim 6 One or more non-transitory computer-readable media (NTCRM) comprising instructions of a sidelink hybrid automatic repeat request (HARQ) entity, wherein execution of the instructions by one or more processors is to cause a user equipment (UE) to: when a medium access control (MAC) protocol data unit (PDU) with data from one or more logical channels (LCHs) has been obtained for sidelink transmission, identify a four-bit LCH priority of the MAC PDU of a plurality of four-bit LCH priorities; set the identified four-bit LCH priority as a priority value of a highest priority LCH among the one or more LCHs; identify, based on a 2:1 mapping of the plurality of four-bit LCH priorities to a plurality of three-bit sidelink control information (SCI) priorities, a three-bit SCI priority of the plurality of three-bit SCI priorities of the MAC PDU, wherein the 2:1 mapping is a mapping of two of the plurality of four-bit LCH priorities to a single one of the plurality of three-bit SCI priorities; when HARQ feedback is enabled for groupcast, and when negative-only acknowledgement is to be used for the HARQ feedback, set a communication range requirement to be a longest communication range of the LCHs in the MAC PDU; and provide the MAC PDU to an associated sidelink process for transmission of the MAC PDU according to the communication range requirement and the identified SCI priority of the MAC PDU. ### Claim 7 (depends on 6) The one or more NTCRM of claim 6, wherein the execution of the instructions is to cause the UE to instruct the associated sidelink process to trigger a transmission. ### Claim 8 (depends on 7) The one or more NTCRM of claim 7, wherein the associated sidelink process, when instructed to trigger the transmission, is to instruct a physical layer to generate the sidelink transmission including the MAC PDU. ### Claim 9 (depends on 6) The one or more NTCRM of claim 6, wherein the sidelink HARQ entity and the associated sidelink process are part of a MAC layer implemented by the UE. ### Claim 10 (depends on 6) The one or more NTCRM of claim 6, wherein the UE is a vehicle-to-everything (V2X) UE. ### Claim 11 A user equipment (UE) comprising: baseband circuitry connected to radiofrequency (RF) circuitry, wherein the baseband circuitry is to: when a medium access control (MAC) protocol data unit (PDU) with data from one or more logical channels (LCHs) has been obtained for sidelink transmission, set identify a four-bit LCH priority of the MAC PDU as a priority value of a highest priority LCH among the one or more LCHs; identify a 2:1 mapping of a plurality of four-bit LCH priorities to a plurality of three-bit sidelink control information (SCI) priorities, wherein the 2:1 mapping is a mapping of two of the plurality of four-bit LCH priorities to a single one of the plurality of three-bit SCI priorities; identify, based on the mapping and the identified four-bit LCH priority, an SCI priority of the plurality of three-bit SCI priorities of the MAC PDU; when hybrid automatic repeat request (HARQ) feedback is enabled for groupcast, and when negative-only acknowledgement is to be used for the HARQ feedback, set a communication range requirement to be a longest communication range of the one or more LCHs in the MAC PDU; and provide the MAC PDU to a physical layer entity for transmission; and radiofrequency (RF) circuitry connected to the baseband circuitry, wherein the RF circuitry is to transmit the MAC PDU over a sidelink channel based on the set communication range requirement and the identified SCI priority of the MAC PDU. ### Claim 12 (depends on 11) The UE of claim 11, wherein the baseband circuitry is to map the data from the MAC PDU to one or more transport blocks for the sidelink transmission. ### Claim 13 (depends on 11) The UE of claim 11, wherein the baseband circuitry is to map the highest priority LCH to a sidelink control information (SCI) priority field in a linear and non-overlapping manner. ### Claim 14 (depends on 11) The UE of claim 11, wherein the UE is a vehicle-to-everything (V2X) UE.