Methods and apparatus for inter-ue coordinated resource allocation in wireless communication

Patent metadata

Field	Value
Publication number	US-2023262774-A1
Application number	US-202017606705-A
Country	US
Kind code	A1
Filing date	Oct 15, 2020
Priority date	Oct 15, 2020
Publication date	Aug 17, 2023
Grant date	—

Abstract

A user equipment (UE) device comprising a processor configured to perform operations is described. In an exemplary embodiment, the operations include comprising establishing a sidelink session with a transmitting UE; configuring the sidelink session to support coordinated resource selection prior to performing the local sensing; performing a local sensing; receiving a PSCCH and a PSSCH from the transmitting UE. The transmitting UE reserves multiple resources. The processor is further configured to perform operations including determining whether a collision happens among the multiple reserved resources; and transmitting the coordination message to the transmitting UE.

First claim

What is claimed is:

1 . A user equipment (UE) comprising:
an antenna; a memory; a RF circuitry commutatively coupled to the antenna; and a processor configured to perform operations comprising:
establishing a sidelink session with a transmitting UE;
configuring the sidelink session to support coordinated resource selection;
performing a local sensing;
receiving a Physical Sidelink Control Channel (PSCCH) and a Physical Sidelink Shared Channel (PSSCH) from the transmitting UE, wherein the transmitting UE reserves multiple resources;
determining whether a collision occurs among the multiple reserved resources based on the performed local sensing or UE scheduling information; and
transmitting the coordination message to the transmitting UE.

2 . The UE of claim 1 , wherein the processor is further configured to perform operations comprising:
determining whether the coordination message is triggered before determining whether the collision occurs among the multiple reserved resources.

3 - 29 . (canceled)

30 . A baseband (BB) processor of a user equipment (UE)in a wireless communication system configured to perform operations comprising:
establishing a sidelink session with a transmitting UE; configuring the sidelink session to support coordinated resource selection; performing a local sensing; receiving a PSCCH and a PSSCH from the transmitting UE, wherein the transmitting UE reserves multiple resources; determining whether a collision occurs among the multiple reserved resources based on the performed local sensing or UE scheduling information; and transmitting the coordination message to the transmitting UE.

31 . The BB processor of claim 30 , wherein the processor is further configured to perform operations comprising:
determining whether the coordination message is triggered before determining whether the collision occurs among the multiple reserved resources.

32 . The BB processor of claim 31 , wherein performing the local sensing comprises:
decoding a sidelink control information (SCI) from neighboring UEs; and measuring an interference level from the neighboring UEs.

33 . The BB processor of claim 31 , wherein the coordination message comprises information on a specific resource reserved by the transmitting UE at specific time slot and in a specific frequency.

34 . The BB processor of claim 33 , wherein the coordination message comprises an indication indicating whether the specific resource reserved by the transmitting UE is a preferred resource for a subsequent transmission.

35 . The BB processor of claim 31 , the coordination message is applicable to reserved resources for a subsequent transmission, wherein the subsequent transmission is either for a retransmission of a data or for a transmission or a retransmission of a new data.

36 . The BB processor of claim 31 , wherein the coordination message is transmitted or received via a physical channel comprising a Physical Sidelink Feedback Coordination Channel (PSFCCH) or a Physical Sidelink Feedback Channel (PSFCH).

37 - 44 . (canceled)

45 . The BB processor of claim 36 , wherein the process is further configured to perform operations comprising:
determining whether one or more PSFCCH are transmitted in the same slot; determining data priority of the PSCCH associated with the transmission of the one or more PSFCCH, wherein the data priority is indicated in the SCI; and prioritizing the transmission of the PSFCCH associated with a higher data priority.

46 . The BB processor of claim 45 , wherein the processor is further configured to perform operations comprising:
determining a cast type associated with the one or more PSFCCH; and prioritizing the transmission of the PSFCCH if the cast type includes a unicast or a groupcast Hybrid automatic repeat request (HARQ) option 2.

47 . The BB processor of claim 36 , wherein the process is further configured to perform operations comprising:
determining whether the PSFCCH is transmitted and the PSFCCH is received in the same slot; and prioritizing the transmission of the PSFCCH.

48 - 50 . (canceled)

51 . The BB processor of claim 31 , wherein the transmission of the coordination message is triggered based on a pre-configuration of resources of the coordination message.

52 . The BB processor of claim 51 , wherein the transmission of the coordination message is triggered based on a configuration in a sidelink unicast or groupcast session.

53 . The BB processor of claim 51 , wherein the transmission of the coordination message is triggered based on the receiving UE decision.

54 . The BB processor of claim 51 , wherein the transmission of the coordination message is triggered based on data quality of service (QoS), or a congestion level, or both.

55 . The BB processor of claim 32 , wherein determining whether the coordination message is triggered comprises:
monitoring an SCI signal to trigger coordination message.

56 - 57 . (canceled)

58 . The BB processor of claim 31 , wherein the coordination message is triggered based on a content of the PSFCH, wherein the content of the PSFCH include ACK or NACK.

59 - 82 . (canceled)

83 . A baseband (BB) processor of a user equipment (UE) in a wireless communication system configured to perform operations comprising:
establishing a sidelink session with a receiving UE; configuring the sidelink session to support coordinated resource selection; performing a sensing and resource selection; transmitting a PSCCH and a PSSCH to the receiving UE, wherein the transmitting UE reserves multiple resources; receiving a coordination message from the receiving UE; determining whether the coordination message indicates reserved resources collision; determining whether to perform resource reselection; performing resource reselection for a subsequent transmission if the coordination message indicates reserved resources collision; performing the subsequent transmission using re-selected resources; and performing the subsequent transmission using the reserved resources if the coordination message does not indicate reserved resources collision.

84 . The BB processor of claim 83 , wherein the processor is further configured to perform operations comprising:
determining whether to trigger the coordination message before transmitting the PSCCH and the PSSCH to the receiving UE.

85 - 106 . (canceled)

Assignees

• Apple Inc

Inventors

• Wu Zhibin
• Ye Chunxuan
• Zhang Dawei
• Sun Haijig
• Sun Haitong
• He Hong
• Oteri Oghenekome
• Baghel Sudhir K
• Zeng Wei
• Yang Weidong
• Zhang Yushu

Classifications

• H04W76/14

  Direct-mode setup · CPC title

• H04W74/0825 Primary

  with collision detection · CPC title

• H04W74/0808

  using carrier sensing, e.g. carrier sense multiple access [CSMA] · CPC title

• H04W72/569

  of the traffic information · CPC title

• H04W72/25

  between terminals via a wireless link, e.g. sidelink · CPC title