US-12621850-B2 - Sidelink transmission coordination

Abstract

Embodiments of the present disclosure relate to sidelink transmission coordination. According to embodiments of the present disclosure, a processor of a user equipment (UE) configured to perform operations comprising: receiving, via a transceiver of the UE and from a second UE, coordination information concerning a transmission from the UE. The coordination information indicates a resource set preferred for the UE to perform resource selection. The operations further comprise determining at least one target resource for the transmission based on the resource set and at least one of the following: measured power of a signal associated with a resource in the resource set, reception time of the coordination information, and a reception scheduled for the UE on a resource in the resource set.

Inventors

• Chunxuan Ye
• Weidong Yang
• Chunhai Yao
• Dawei Zhang
• Haitong Sun
• Hong He
• Huaning Niu
• Seyed Ali Akbar FAKOORIAN
• Sigen Ye
• Wei Zeng

Assignees

• APPLE INC.

Dates

Publication Date

20260505

Application Date

20210924

Claims (20)

1. 1 . A processor of a user equipment (UE) configured to perform operations comprising: determining that a time gap associated with a potential resource collision exceeds a time threshold; and in accordance with a determination that the time gap associated with the potential resource collision exceeds the time threshold, transmitting, via a transceiver of the UE and to a second UE, coordination information concerning a transmission to be performed by the second UE, the coordination information indicating the second UE to perform resource selection.
2. 2 . The processor of claim 1 , wherein the coordination information indicates a resource set non-preferred for the UE without a resource set preferred for the UE.
3. 3 . The processor of claim 1 , wherein the coordination information further indicates the potential resource collision.
4. 4 . The processor of claim 1 , wherein the coordination information further indicates the potential resource collision and the data to be transmitted by a potentially collided resource.
5. 5 . The processor of claim 1 , the operations further comprising: receiving, from the second UE, sidelink control information (SCI).
6. 6 . The processor of claim 5 , wherein the time gap associated with the potential resource collision comprises a time period between receiving the SCI from the second UE and the potential resource collision.
7. 7 . The processor of claim 1 , the operations further comprising: receiving, from a third UE, sidelink control information (SCI).
8. 8 . A method, comprising: at a user equipment (UE): determining that a time gap associated with a potential resource collision exceeds a time threshold; and in accordance with a determination that the time gap associated with the potential resource collision exceeds the time threshold, transmitting, via a transceiver of the UE and to a second UE, coordination information concerning a transmission to be performed by the second UE, the coordination information indicating the second UE to perform resource selection.
9. 9 . The method of claim 8 , wherein the coordination information indicates a resource set non-preferred for the UE without a resource set preferred for the UE.
10. 10 . The method of claim 8 , wherein the coordination information further indicates the potential resource collision.
11. 11 . The method of claim 8 , wherein the coordination information further indicates the potential resource collision and the data to be transmitted by a potentially collided resource.
12. 12 . The method of claim 8 , the operations further comprising: receiving, from the second UE, sidelink control information (SCI).
13. 13 . The method of claim 12 , wherein the time gap associated with the potential resource collision comprises a time period between receiving the SCI from the second UE and the potential resource collision.
14. 14 . The method of claim 8 , the operations further comprising: receiving, from a third UE, sidelink control information (SCI).
15. 15 . An apparatus comprising processing circuitry coupled to memory, the processing circuitry configured to: determine that a time gap associated with a potential resource collision exceeds a time threshold; and in accordance with a determination that the time gap associated with the potential resource collision exceeds the time threshold, transmitting, via a transceiver of the UE and to a second UE, coordination information concerning a transmission to be performed by the second UE, the coordination information indicating the second UE to perform resource selection.
16. 16 . The apparatus of claim 15 , wherein the coordination information indicates a resource set non-preferred for the UE without a resource set preferred for the UE.
17. 17 . The apparatus of claim 15 , wherein the coordination information further indicates the potential resource collision.
18. 18 . The apparatus of claim 15 , wherein the coordination information further indicates the potential resource collision and the data to be transmitted by a potentially collided resource.
19. 19 . The apparatus of claim 15 , the processing circuitry further configured to: process, based on signaling received from the second UE, sidelink control information (SCI).
20. 20 . The apparatus of claim 19 , wherein the time gap associated with the potential resource collision comprises a time period between receiving the SCI from the second UE and the potential resource collision.

Description

TECHNICAL FIELD Embodiments of the present disclosure generally relate to the field of telecommunications, and in particular, to sidelink (SL) transmission coordination. BACKGROUND With the rapid development of the communication technology, communication systems can support various types of service applications for user equipment (UEs), such as transmissions between UEs. In recent communication technologies, it has been proposed to use SL connections for transmissions between UEs. Works are ongoing to introduce enhancements to SL transmissions, such as SL transmission coordination between UEs. SUMMARY In general, example embodiments of the present disclosure provide a solution for uplink multi-panel transmission. In a first aspect, there is provided a processor of a UE. The processor is configured to perform operations comprising: receiving, via a transceiver of the UE and from a second UE, coordination information concerning a transmission to be performed by the UE, the coordination information indicating a resource set preferred for the UE to perform resource selection; and determining at least one target resource for the transmission based on the resource set and at least one of the following: measured power of a signal associated with a resource in the resource set, reception time of the coordination information, and a reception scheduled for the UE on a resource in the resource set. In a second aspect, there is provided a processor of a UE. The processor is configured to perform operations comprising: determining whether at least one of the following conditions is met: that a configuration of the UE enables a transmission of coordination information to a second UE, that a channel status determined by the UE indicates a busy status, that a time gap associated with a potential resource collision exceeds a time threshold, that a priority associated with a potential resource collision exceeds a threshold priority; that a resource collision for the second UE is determined based on control information from the second UE, and that a distance between the UE and the second UE is above a threshold distance; and in accordance with a determination that the at least one of the conditions is met, transmitting, via a transceiver of the UE and to the second UE, the coordination information concerning a transmission to be performed by the second UE, the coordination information indicating the UE to perform resource selection. In a third aspect, there is provided a processor of a UE. The processor is configured to perform operations comprising: determining at least one resource set for a second UE based on at least one of: measured power of a signal associated with a resource, control information from a third UE, and a priority of data to be transmitted using a resource reserved by the second UE; and transmitting, via a transceiver of the UE and to the second UE, coordination information concerning a transmission to be performed by the second UE, the coordination information indicating the at least one resource set. In a fourth aspect, there is provided a processor of a UE. The processor is configured to perform operations comprising: receiving, via a transceiver of the UE and from a second UE, coordination information concerning a transmission to be performed by the UE, the coordination information indicating a potential resource collision of the UE with a third UE; and in accordance with the potential resource collision and a determination that at least one of the following conditions is met, reselecting a resource to replace a potentially collided resource: that a time gap between reception time of the coordination information and time of the potential resource collision exceeds a time threshold, that the UE performs partial sensing or no sensing, that the second UE is expected to receive data from the UE, that the potentially collided resource is used to transmit a data block different from a data block associated with control information of the UE, that the number of retransmissions of a data block to be transmitted using the potentially collided resource is above a threshold number, and that a delay limit for data transmission is smaller than a threshold. In a fifth aspect, there is provided a processor of a UE. The processor is configured to perform operations comprising: receiving, via a transceiver of the UE and from a second UE, control information indicating a resource reserved by the second UE; determining a resource collision status of the second UE with a third UE based on at least one of the following: the control information from the second UE, further control information from the third UE, measured power of a signal from the second UE or further measured power of a signal from the third UE, and time of a potential resource collision; and transmitting, via the transceiver of the UE and to the second UE, coordination information concerning a transmission to be performed by the UE, the coordination informa