# US 11,452,088 B2 · Method and apparatus for confirmation of multiple configured grants for sidelink in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,452,088 B2 - Document ID: US11452088B2 - Status: Granted - Kind: B2 - Application number: 17/098,206 - Filed: 2020-11-13 - Published: 2021-05-20 - Granted: 2022-09-20 - Earliest claimed: 2019-11-15 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Youngdae Lee; JaYeong Kim; Giwon Park; Jongyoul Lee - Web page: https://patentgrep.com/patent/US11452088B2 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 72/56: based on priority criteria - H04W 76/14: Direct-mode setup - 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 and apparatus for confirmation of multiple configured grants for sidelink in a wireless communication system is provided. A wireless device receives activation command or deactivation command on Physical Downlink Control Channel (PDCCH) for at least one of the multiple configured grants. A wireless device receives transmits, to the network, a confirmation Media Access Control (MAC) Control Element (CE). The confirmation MAC CE includes one or more fields in a bit group of which size is equal to number of the multiple configured grants. Each field in the bit group is set to (i) zero to indicate deactivation for each of the multiple configured grants or (ii) 1 to indicate activation for each of the multiple configured grants. Each field in the confirmation MAC CE except the bit group is ignored. ## Claims ### Claim 1 A method performed by a wireless device in a wireless communication system, the method comprising, receiving, from a network, configuration of multiple configured grants for sidelink; transmitting, to the network, a first Medium Access Control (MAC) protocol data unit (PDU) including a first Configured Grant Confirmation MAC Control Element (CE); receiving activation command or deactivation command on Physical Downlink Control Channel (PDCCH) for at least one of the multiple configured grants; triggering a specific configured grant confirmation upon receiving the activation command or the deactivation command, wherein the specific configured grant confirmation corresponds to the at least one of the multiple configured grants; generating a second MAC PDU including a second Configured Grant Confirmation MAC CE, wherein the second Configured Grant Confirmation MAC CE includes at least one confirmation up to a last event that triggered the first Configured Grant Confirmation MAC CE prior to the second MAC PDU; canceling the triggered specific configured grant confirmation, which is prior to the second MAC PDU, based on that (i) a handover is performed, (ii) a serving cell change is performed, and/or (iii) a beam failure is detected; and transmitting, to the network, the second MAC PDU including the second Configured Grant Confirmation MAC CE, wherein the second Configured Grant Confirmation MAC CE includes one or more fields in a bit group of which size is equal to number of the multiple configured grants, wherein each field in the bit group is set to (i) zero to indicate deactivation for each of the multiple configured grants or (ii) 1 to indicate activation for each of the multiple configured grants, and wherein each field in the second Configured Grant Confirmation MAC CE except the bit group is ignored. ### Claim 2 (depends on 1) The method of claim 1, wherein the second Configured Grant Confirmation MAC CE includes at least one octet. ### Claim 3 (depends on 1) The method of claim 1, wherein all of the one or more fields in the bit group are same type. ### Claim 4 (depends on 1) The method of claim 1, wherein the second Configured Grant Confirmation MAC CE includes another type of a field. ### Claim 5 (depends on 1) The method of claim 1, wherein the second Configured Grant Confirmation MAC CE is identified by a MAC subheader with a logical channel identifier (LCD). ### Claim 6 (depends on 1) The method of claim 1, wherein the multiple configured grants includes at least one of a configured grant Type 2 with sidelink configured grant index (CGi) configured for a Medium Access Control (MAC) entity of the wireless device. ### Claim 7 (depends on 6) The method of claim 6, wherein at least one of the field in the bit group indicates confirmation to activation or deactivation of the configured grant Type 2 with the sidelink configured grant index (CGi). ### Claim 8 (depends on 1) The method of claim 1, wherein the second Configured Grant Confirmation MAC CE consists of one octet. ### Claim 9 (depends on 1) The method of claim 1, wherein the method further comprises, setting a priority of the second Configured Grant Confirmation MAC CE as a highest priority of logical channels associated with the multiple configured grants. ### Claim 10 (depends on 1) The method of claim 1, wherein the method further comprises, setting a priority of the second Configured Grant Confirmation MAC CE as a highest priority of logical channels belonging to a destination associated with the multiple configured grants. ### Claim 11 (depends on 1) The method of claim 1, wherein the wireless device is in communication with at least one of a user equipment, a network, or an autonomous vehicle other than the wireless device. ### Claim 12 A wireless device in a wireless communication system comprising: a transceiver; a memory; and at least one processor operatively coupled to the transceiver and the memory, and configured to: control the transceiver to receive, from a network, configuration of multiple configured grants for sidelink; control the transceiver to transmit, to the network, a first Medium Access Control (MAC) protocol data unit (PDU) including a first Configured Grant Confirmation MAC Control Element (CE); control the transceiver to receive activation command or deactivation command on PDCCH for at least one of the multiple configured grants; trigger a specific configured grant confirmation upon receiving the activation command or the deactivation command, wherein the specific configured grant confirmation corresponds to the at least one of the multiple configured grants; generate a second MAC PDU including a second Configured Grant Confirmation MAC CE wherein the second Configured Grant Confirmation MAC CE includes at least one confirmation up to a last event that triggered the first Configured Grant Confirmation MAC CE prior to the second MAC PDU; cancel the triggered specific configured grant confirmation, which is prior to the second MAC PDU, based on that (i) a handover is performed, (ii) a serving cell change is performed, and/or (iii) a beam failure is detected; and control the transceiver to transmit, to the network, a the second MAC PDU including the second Configured Grant Confirmation MAC CE, wherein the second Configured Grant Confirmation MAC CE includes one or more fields in a bit group of which size is equal to number of the multiple configured grants, wherein each field in the bit group is set to (i) zero to indicate deactivation for each of the multiple configured grants or (ii) 1 to indicate activation for each of the multiple configured grants, and wherein each field in the second Configured Grant Confirmation MAC CE except the bit group is ignored. ### Claim 13 (depends on 12) The wireless device of claim 12, wherein the second Configured Grant Confirmation MAC CE includes at least one octet. ### Claim 14 A processor for a wireless device in a wireless communication system, wherein the processor is configured to control the wireless device to perform operations comprising: receiving, from a network, configuration of multiple configured grants for sidelink; transmitting, to the network, a first Medium Access Control (MAC) protocol data unit (PDU) including a first Configured Grant Confirmation MAC Control Element (CE); receiving activation command or deactivation command on Physical Downlink Control Channel (PDCCH) for at least one of the multiple configured grants; triggering a specific configured grant confirmation upon receiving the activation command or the deactivation command, wherein the specific configured grant confirmation corresponds to the at least one of the multiple configured grants; generating a second MAC PDU including a second Configured Grant Confirmation MAC CE, wherein the second Configured Grant Confirmation MAC CE includes at least one confirmation up to a last event that triggered the first Configured Grant Confirmation MAC CE prior to the second MAC PDU; canceling the triggered specific configured grant confirmation, which is prior to the second MAC PDU, based on that (i) a handover is performed, (ii) a serving cell change is performed, and/or (iii) a beam failure is detected; and transmitting, to the network, the second MAC PDU including the second Configured Grant Confirmation, wherein the second Configured Grant Confirmation MAC CE includes one or more fields in a bit group of which size is equal to number of the multiple configured grants, wherein each field in the bit group is set to (i) zero to indicate deactivation for each of the multiple configured grants or (ii) 1 to indicate activation for each of the multiple configured grants, and wherein each field in the second Configured Grant Confirmation MAC CE except the bit group is ignored.