# US 2025/0386366 A1 · Pssch and psfch for wideband operation

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- Number: US 2025/0386366 A1
- Document ID: US20250386366A1
- Status: Published application
- Kind: A1
- Application number: 18/876,081
- Filed: 2022-07-20
- Published: 2025-12-18
- Earliest claimed: 2022-07-20
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Siyi CHEN; Jing SUN; Chih-Hao LIU; Xiaoxia ZHANG; Changlong XU; Shaozhen GUO; Luanxia YANG; Hao XU
- Web page: https://patentgrep.com/patent/US20250386366A1

## CPC

- H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 27/0006: {Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14)}
- H04W 72/40: Resource management for direct mode communication, e.g. D2D or sidelink
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- 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)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A UE may be configured to measure each of a plurality of LBT bandwidths of a PSSCH, and refrain from transmitting a SL transmission in the PSSCH or transmit the SL transmission in at least one RB set associated with the plurality of LBT bandwidths other than a first LBT bandwidth of the PSSCH. The SL transmission may be transmitted or refrained from being transmitted based on a first measurement of the first LBT bandwidth of the PSSCH being greater than a threshold value. The UE may receive a parameter associated with transmitting the SL transmission in the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH.

## Claims

### Claim 1

An apparatus for wireless communication at a user equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
measure each of a plurality of listen-before-talk (LBT) bandwidths of a physical sidelink shared channel (PSSCH); and
refrain from transmitting a sidelink (SL) transmission in the PSSCH or transmit the SL transmission in at least one resource block (RB) set associated with the plurality of LBT bandwidths other than a first LBT bandwidth of the PSSCH, wherein the SL transmission is transmitted or refrained from being transmitted based on a first measurement of the first LBT bandwidth of the PSSCH being greater than a threshold value.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the at least one resource block (RB) set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH includes a plurality of LBT bandwidths continuously configured in a frequency domain,
wherein the SL transmission is transmitted in the plurality of LBT bandwidths continuously configured in the frequency domain,
wherein the first LBT bandwidth is at least one failed LBT bandwidth that corresponds to the first measurement of the first LBT bandwidth being greater than the threshold value.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein the plurality of LBT bandwidths continuously configured in the frequency domain includes a primary channel including SL control information (SCI) format 1 (SCI-1).

### Claim 4 (depends on 2)

The apparatus of claim 2, wherein the plurality of LBT bandwidths continuously configured in the frequency domain does not include a primary channel, and each LBT bandwidth of the plurality of LBT bandwidths includes SL control information (SCI) format 1 (SCI-1).

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the at least one resource block (RB) set associated with the plurality of LBT bandwidths includes a plurality of LBT bandwidths discontinued in a frequency domain by the first LBT bandwidth, and each LBT bandwidth of the plurality of LBT bandwidths includes SL control information (SCI) format 1 (SCI-1).

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein the at least one processor is further configured to:
receive at least one parameter from a network node, wherein the at least one parameter indicates to the UE to transmit the SL transmission in the at least one resource block (RB) set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH.

### Claim 7 (depends on 6)

The apparatus of claim 6, wherein the at least one processor is further configured to:
transmit an indication of at least one capability of the UE to the network node, wherein the at least one parameter is associated with the at least one capability of the UE.

### Claim 8 (depends on 6)

The apparatus of claim 6, wherein the at least one parameter is associated with a first capability of the UE to prepare a waveform corresponding to the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH,
wherein the SL transmission is transmitted in the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH based on the UE having the first capability to prepare the waveform corresponding to the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH.

### Claim 9 (depends on 6)

The apparatus of claim 6, wherein the at least one parameter is associated with a second capability of the UE to support SL control information (SCI) format 1 (SCI-1) repetition.

### Claim 10 (depends on 9)

The apparatus of claim 9, wherein the SL transmission is transmitted in the at least one RB set associated with the plurality of LBT bandwidths including a plurality of LBT bandwidths continuously configured in a frequency domain and the plurality of LBT bandwidths including a primary channel, wherein the SL transmission is transmitted based on the UE not having the second capability to support the SCI-1 repetition.

### Claim 11 (depends on 9)

The apparatus of claim 9, wherein the SL transmission is transmitted in the at least one RB set associated with the plurality of LBT bandwidths including a plurality of LBT bandwidths continuously configured in a frequency domain and the plurality of LBT bandwidths not including a primary channel, wherein the SL transmission is transmitted based on the UE having the second capability to support the SCI-1 repetition,
wherein each LBT bandwidth of the plurality of LBT bandwidths includes the SCI-1 repetition.

### Claim 12 (depends on 9)

The apparatus of claim 9, wherein the SL transmission is transmitted in the at least one RB set associated with the plurality of LBT bandwidths including a plurality of LBT bandwidths not continuously configured in a frequency domain based on the UE having the second capability to support the SCI-1 repetition,
wherein each LBT bandwidth of the plurality of LBT bandwidths includes the SCI-1 repetition.

### Claim 13 (depends on 9)

The apparatus of claim 9, wherein the SL transmission is not transmitted in the at least one RB set associated with the plurality of LBT bandwidths including a plurality of LBT bandwidths not continuously configured in a frequency domain or the plurality of LBT bandwidths not including a primary channel, wherein the SL transmission is transmitted based on the UE not having the second capability to support the SCI-1 repetition.

### Claim 14 (depends on 6)

The apparatus of claim 6, wherein the at least one parameter is associated with a power consumption of the UE,
wherein the SL transmission is not transmitted in the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH based on the power consumption of the UE being configured lower than a power threshold value.

### Claim 15 (depends on 6)

The apparatus of claim 6, wherein the at least one processor is further configured to transmit a request to refrain from transmitting the SL transmission in the PSSCH or transmit the SL transmission in at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH,
wherein the at least one parameter is associated with the request, the request being transmitted to the network node.

### Claim 16 (depends on 1)

The apparatus of claim 1, wherein the SL transmission transmitted in the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH includes a SL control information (SCI) format 1 (SCI-1), and the SCI-1 includes an indication of the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH.

### Claim 17 (depends on 16)

The apparatus of claim 16, wherein the SCI-1 includes a bitmap indicating the at least one RB set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH.

### Claim 18 (depends on 1)

The apparatus of claim 1, wherein the SL transmission includes a SL control information (SCI) format 2 (SCI-2) mapped to multiple RB sets starting from a primary channel,
wherein the SL transmission is transmitted in the at least one RB set associated with the plurality of LBT bandwidths including a plurality of LBT bandwidths continuously configured in a frequency domain, wherein the SL transmission is transmitted based on the SCI-2 being mappable within the plurality of LBT bandwidths continuously configured in the frequency domain.

### Claim 19 (depends on 1)

The apparatus of claim 1, wherein the SL transmission includes a SL control information (SCI) format 2 (SCI-2) mapped to a single RB set in a primary channel, and the SCI-2 is repeated in each LBT bandwidth of the plurality of LBT bandwidths.

### Claim 20 (depends on 1)

The apparatus of claim 1, wherein the at least one processor is further configured to:
receive at least one parameter of a physical sidelink feedback channel (PSFCH); and
receive the PSFCH including a hybrid automatic repeat request (HARQ) feedback from a receiving UE,
wherein the at least one parameter is associated with at least one metric at the receiving UE, the at least one metric including:
a channel busy ratio (CBR);
a LBT success rate before the PSFCH; or
an inter radio access technology (inter-RAT) received signal strength indicator (RSSI).

### Claim 21

An apparatus for wireless communication at a user equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
receive a sidelink (SL) transmission in a physical sidelink shared channel (PSSCH) from a transmit (Tx) UE, the PSSCH including a plurality of listen-before-talk (LBT) bandwidths associated with at least one resource block (RB) set; and
transmit a physical sidelink feedback channel (PSFCH) including a hybrid automatic repeat request (HARQ) feedback of the PSSCH, the PSFCH being mapped to a starting sub-channel of each RB set of the plurality of LBT bandwidths of the PSSCH.

### Claim 22 (depends on 21)

The apparatus of claim 21, wherein the at least one processor is further configured to:
receive at least one parameter of the PSFCH from a network node, the at least one parameter of the PSFCH including at least one of a number of duplications of the PSFCH or a number of physical resource blocks (PRBs) for the PSFCH,
wherein the PSFCH is transmitted based on the at least one parameter of the PSFCH.

### Claim 23 (depends on 22)

The apparatus of claim 22, wherein the at least one parameter is associated with at least one metric at the UE, the at least one metric including:
a channel busy ratio (CBR);
a LBT success rate before the PSFCH; or
an inter radio access technology (inter-RAT) received signal strength indicator (RSSI).

### Claim 24

An apparatus for wireless communication at a network node, comprising:
a memory; and
at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
receive an indication of at least one capability of a user equipment (UE) or a request from the UE; and
transmit at least one parameter for the UE based at least in part on receiving the indication of the at least one capability of the UE or the request from the UE, wherein the at least one parameter indicates to the UE to transmit sidelink (SL) transmission in at least one resource block (RB) set associated with a plurality of LBT bandwidths other than a first LBT bandwidth of physical sidelink shared channel (PSSCH) based on a first measurement of the first LBT bandwidth of the PSSCH being greater than a threshold value.

### Claim 25 (depends on 24)

The apparatus of claim 24, wherein the at least one processor is further configured to:
configure at least one network resource for the UE, the at least one network resource is associated with the at least one parameter.

### Claim 26 (depends on 24)

The apparatus of claim 24, wherein the at least one processor is further configured to:
transmit the at least one parameter of a PSFCH, the at least one parameter associated with the PSSCH to PSFCH mapping parameter.

### Claim 27 (depends on 26)

The apparatus of claim 26, wherein the at least one processor is further configured to:
receive a message from a receiving (Rx) UE, the at least one parameter of the PSFCH being associated with the message,
wherein the message includes at least one metric including:
a channel busy ratio (CBR);
a LBT success rate before the PSFCH; or
an inter radio access technology (inter-RAT) received signal strength indicator (RSSI).

### Claim 28

A method of wireless communication at a user equipment (UE), comprising:
measuring each of a plurality of listen-before-talk (LBT) bandwidths of a physical sidelink shared channel (PSSCH); and
refraining from transmitting a sidelink (SL) transmission in the PSSCH or transmitting the SL transmission in at least one resource block (RB) set associated with the plurality of LBT bandwidths other than a first LBT bandwidth of the PSSCH, wherein the SL transmission is transmitted or refrained from being transmitted based on a first measurement of the first LBT bandwidth of the PSSCH being greater than a threshold value.

### Claim 29 (depends on 28)

The method of claim 28, further comprising:
receiving at least one parameter from a network node, wherein the at least one parameter indicates to the UE to transmit the SL transmission in the at least one resource block (RB) set associated with the plurality of LBT bandwidths other than the first LBT bandwidth of the PSSCH.

### Claim 30 (depends on 29)

The method of claim 29, further comprising:
transmitting an indication of at least one capability of the UE to the network node, wherein the at least one parameter is associated with the at least one capability of the UE.