# US 2025/0098024 A1 · Sensing for sidelink discontinuous reception (drx)

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- Number: US 2025/0098024 A1
- Document ID: US20250098024A1
- Status: Published application
- Kind: A1
- Application number: 18/783,838
- Filed: 2024-07-25
- Published: 2025-03-20
- Earliest claimed: 2021-08-06
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Gabi SARKIS; Wanshi CHEN; Tien Viet NGUYEN; Seyedkianoush HOSSEINI; Sourjya DUTTA
- Web page: https://patentgrep.com/patent/US20250098024A1

## CPC

- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04W 52/0235: {where the received signal is a power saving command}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 72/25: between terminals via a wireless link, e.g. sidelink
- H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA]
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for sidelink discontinuous reception (DRX) that indicates a DRX on duration. The UE may selectively perform sensing for sidelink resource selection outside of the DRX on duration. Numerous other aspects are described.

## Claims

### Claim at position 1

1-20. (canceled)

### Claim 21

An apparatus for wireless communication at a user equipment (UE), comprising:
one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to:
selectively perform sensing for sidelink resource selection during an inactive time of sidelink discontinuous reception (DRX) in a set of periodic partial sensing occasions only for a most-recent occasion of a periodicity associated with the set of periodic partial sensing occasions based at least in part on an indication to perform sensing during the inactive time of the sidelink DRX,
wherein the one or more processors, to selectively perform sensing during the inactive time of the sidelink DRX, are configured to perform reception during the inactive time of the sidelink DRX for use in performing sensing during the inactive time of the sidelink DRX.

### Claim 22 (depends on 21)

The apparatus of claim 21, wherein the indication is for enabling the sensing to be performed during the inactive time of the sidelink DRX.

### Claim 23 (depends on 21)

The apparatus of claim 21, wherein the one or more processors are further configured to:
receive the indication from a network entity.

### Claim 24 (depends on 21)

The apparatus of claim 21, wherein the one or more processors, to selectively perform sensing during the inactive time of the sidelink DRX, are configured to:
perform sensing during the inactive time of the sidelink DRX based at least in part on a sidelink DRX configuration.

### Claim 25 (depends on 21)

The apparatus of claim 21, wherein the one or more processors are further configured to:
perform a sidelink transmission based at least in part on performing sensing during the inactive time of the sidelink DRX.

### Claim 26 (depends on 21)

The apparatus of claim 21, wherein the periodicity is associated with a list of resource reservation periodicities.

### Claim 27 (depends on 21)

The apparatus of claim 21, wherein the one or more processors, to perform reception during the inactive time of the sidelink DRX, are configured to:
decode control messages.

### Claim 28 (depends on 27)

The apparatus of claim 27, wherein the control messages include communications associated with a first stage of sidelink control information (SCI).

### Claim 29

A method of wireless communication performed by a user equipment (UE), comprising:
selectively performing sensing for sidelink resource selection during an inactive time of sidelink discontinuous reception (DRX) in a set of periodic partial sensing occasions only for a most-recent occasion of a periodicity associated with the set of periodic partial sensing occasions based at least in part on an indication to perform sensing during the inactive time of the sidelink DRX,
wherein selectively performing sensing during the inactive time of the sidelink DRX comprises performing reception during the inactive time of the sidelink DRX for use in performing sensing during the inactive time of the sidelink DRX.

### Claim 30 (depends on 29)

The method of claim 29, wherein the indication is for enabling the sensing to be performed during the inactive time of the sidelink DRX.

### Claim 31 (depends on 29)

The method of claim 29, further comprising:
receiving the indication from a network entity.

### Claim 32 (depends on 29)

The method of claim 29, wherein selectively performing sensing during the inactive time of the sidelink DRX comprises:
performing sensing during the inactive time of the sidelink DRX based at least in part on a sidelink DRX configuration.

### Claim 33 (depends on 29)

The method of claim 29, further comprising:
performing a sidelink transmission based at least in part on performing sensing during the inactive time of the sidelink DRX.

### Claim 34 (depends on 29)

The method of claim 29, wherein the periodicity is associated with a list of resource reservation periodicities.

### Claim 35 (depends on 29)

The method of claim 29, wherein performing reception during the inactive time of the sidelink DRX comprises:
decoding control messages.

### Claim 36 (depends on 35)

The method of claim 35, wherein the control messages include communications associated with a first stage of sidelink control information (SCI).

### Claim 37

A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
selectively perform sensing for sidelink resource selection during an inactive time of sidelink discontinuous reception (DRX) in a set of periodic partial sensing occasions only for a most-recent occasion of a periodicity associated with the set of periodic partial sensing occasions based at least in part on an indication to perform sensing during the inactive time of the sidelink DRX,
wherein the one or more instructions, that cause the UE to selectively perform sensing during the inactive time of the sidelink DRX, cause the UE to perform reception during the inactive time of the sidelink DRX for use in performing sensing during the inactive time of the sidelink DRX.

### Claim 38 (depends on 37)

The non-transitory computer-readable medium of claim 37, wherein the indication is for enabling the sensing to be performed during the inactive time of the sidelink DRX.

### Claim 39 (depends on 37)

The non-transitory computer-readable medium of claim 37, wherein the one or more instructions further cause the UE to:
receive the indication from a network entity.

### Claim 40 (depends on 37)

The non-transitory computer-readable medium of claim 37, wherein the one or more instructions, that cause the UE to selectively perform sensing during the inactive time of the sidelink DRX, cause the UE to:
perform sensing during the inactive time of the sidelink DRX based at least in part on a sidelink DRX configuration.