Mode-1 downlink control information transmission-reception for configured sidelink scheduling in NR V2X

Patent metadata

Field	Value
Publication number	US-11985670-B2
Application number	US-202117175401-A
Country	US
Kind code	B2
Filing date	Feb 12, 2021
Priority date	Feb 13, 2020
Publication date	May 14, 2024
Grant date	May 14, 2024

Abstract

Various embodiments of the present disclosure may be used to determine how activation downlink control information (DCI), release DCI, and dynamic retransmission DCI are distinguished for DCI formats 3_0/3_1 for Mode-1 sidelink resource allocation. Furthermore, in case of asynchronous downlink (DL) and sidelink (SL) carriers, embodiments of the present disclosure may be used to determine how a user equipment (UE) determines transmission slots with respect to system frame number (SFN) or direct frame number (DFN) when activated with Type 1 configured scheduling.

First claim

What is claimed is:

1. One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, are to cause a next-generation NodeB (gNB) to:
determine downlink control information (DCI) associated with a configured grant sidelink transmission by a user equipment (UE), wherein the DCI includes an indication of an activation or a release of a sidelink resource using a hybrid automatic repeat request (HARQ) process number identifier field, wherein the DCI is DCI format 3_0 or 3_1, and wherein the DCI is to indicate the activation of the sidelink resource and the HARQ process number identifier field is set to all 0's or the DCI is to indicate the release and the HARQ process number identifier field is set to all 1's; and
encode a message for transmission to the UE that includes the DCI scrambled by a sidelink-configured scheduling-radio network temporary identifier (SL-CS-RNTI).

2. The one or more non-transitory computer-readable media of claim 1 , wherein the DCI includes a frequency offset bitfield set to all 1's.

3. An apparatus of a next-generation NodeB (gNB) comprising:
memory to store downlink control information (DCI) associated with a configured grant sidelink transmission by a user equipment (UE), wherein the DCI includes an indication of an activation or a release of a sidelink resource using a hybrid automatic repeat request (HARQ) process number identifier field; and
processor circuitry, coupled with the memory, to:
retrieve the DCI from the memory; and
encode a message for transmission to the UE that includes the DCI scrambled by a sidelink-configured scheduling-radio network temporary identifier (SL-CS-RNTI), wherein the DCI is DCI format 3_0 or 3_1, and wherein the DCI is to indicate the activation of the sidelink resource and the HARQ process number identifier field is set to all 0's or the DCI is to indicate the release and the HARQ process number identifier field is set to all 1's.

4. The apparatus of claim 3 , wherein the DCI includes a frequency offset bitfield set to all 1's.

5. One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, are to cause a user equipment (UE) to:
receive a message that includes downlink control information (DCI) associated with a configured grant sidelink transmission, wherein the DCI is scrambled by a sidelink-configured scheduling-radio network temporary identifier (SL-CS-RNTI), and wherein the DCI includes an indication of an activation or a release of a sidelink resource using a hybrid automatic repeat request (HARD) process number identifier field; and
encode a physical sidelink shared channel (PSSCH) or physical sidelink control channel (PSCCH) message for transmission based on the DCI, wherein the DCI is DCI format 3_0 or 3_1, and wherein the DCI is to indicate the activation of the sidelink resource and the HARQ process number identifier field is set to all 0's or the DCI is to indicate the release and the HARQ process number identifier field is set to all 1's.

6. The one or more non-transitory computer-readable media of claim 5 , wherein the DCI includes a frequency offset bitfield set to all 1's.

7. One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, are to cause a user equipment (UE) to:
receive a message that includes downlink control information (DCI) associated with a configured grant sidelink transmission, wherein the DCI is scrambled by a sidelink-configured scheduling-radio network temporary identifier (SL-CS-RNTI), wherein the DCI is DCI format 3_0 or 3_1, wherein the DCI includes an indication of an activation or a release of a sidelink resource using a hybrid automatic repeat request (HARD) process number identifier field, and wherein if the DCI indicates the release of the sidelink resource the DCI further includes a frequency resource indication field set to all 1's; and
encode a physical sidelink shared channel (PSSCH) or physical sidelink control channel (PSCCH) message for transmission based on the DCI;
wherein the DCI is to indicate the activation of the sidelink resource and the HARD process number identifier field is set to all 0's or the DCI is to indicate the release of the sidelink resource and the HARD process number identifier is set to all 1's.

8. One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, are to cause a next-generation NodeB (gNB) to:
determine downlink control information (DCI) associated with a configured grant sidelink transmission by a user equipment (UE), wherein the DCI includes an indication of an activation or a release of a sidelink resource using a hybrid automatic repeat request (HARQ) process number identifier field, and wherein if the DCI indicates the release of the sidelink resource the DCI further includes a frequency resource indication field set to all 1's; and
encode a message for transmission to the UE that includes the DCI scrambled by a sidelink-configured scheduling-radio network temporary identifier (SL-CS-RNTI);
wherein the DCI is DCI format 3_0 or 3_1; and
wherein the DCI is to indicate the activation of the sidelink resource and the HARQ process number identifier is set to all 0's or the DCI is to indicate the release of the sidelink resource and the HARQ process number identifier is set to all 1's.

Assignees

• Intel Corp

Inventors

• Panteleev Sergey
• Khoryaev Alexey
• Shilov Mikhail
• Roth Kilian
• Belov Dmitry

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L5/0098

  Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands · CPC title

• H04W76/14

  Direct-mode setup · CPC title

• H04L1/1887

  Scheduling and prioritising arrangements · CPC title