US-12621117-B2 - Techniques for sidelink and uplink full duplex communication with multiple transmission and reception points

Abstract

Techniques for sidelink (SL) and uplink (UL) full duplex communication with multiple transmission and reception points (multi-TRP) may be performed. In an example, a user equipment (UE) may determine full duplex communication, including simultaneous reception of a SL communication from an SL UE via a first TRP of the UE and transmission of a UL transmission to a base station via a second TRP of the UE, is available. The UE may enable the full duplex communication. The UE may receive, from the SL UE, the SL communication via the first TRP. The UE may transmit, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP.

Inventors

• Hui Guo
• Kapil Gulati
• Navid Abedini
• Junyi Li
• Sourjya DUTTA
• Anantharaman Balasubramanian
• Shuanshuan Wu

Assignees

• QUALCOMM INCORPORATED

Dates

Publication Date

20260505

Application Date

20210405

Claims (20)

1. 1 . A method of wireless communication by a user equipment (UE), comprising: determining full duplex communication including simultaneous reception of a sidelink (SL) communication from an SL UE via a first transmission and reception point (TRP) of the UE and transmission of an uplink (UL) transmission to a base station via a second TRP of the UE, is available; enabling, in response to the determining the full duplex communication is available, the full duplex communication; receiving, from the SL UE in response to the enabling the full duplex communication, the SL communication via the first TRP; and transmitting, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP.
2. 2 . The method of claim 1 , wherein the determining the full duplex communication is available comprises: performing a self-interference measurement of a receiving beam of the first TRP while simultaneously transmitting UL information to the base station via the second TRP; and determining an interference level from the self-interference measurement is within an interference threshold range.
3. 3 . The method of claim 2 , further comprising: determining a transmission beam of the second TRP for the UL transmission based on a beam management procedure, wherein the performing the self-interference measurement is in response to the determining the transmission beam.
4. 4 . The method of claim 2 , further comprising: performing one or more beam tracking procedures on one or more receiving beams of one or more first TRPs including the first TRP, wherein the performing the self-interference measurement is in response to the performing the one or more beam tracking procedures.
5. 5 . The method of claim 2 , wherein the interference level is based on one or more of a signal-to-noise and interference ratio (SINR) level or a reference signal received power (RSRP) level of the receiving beam of the first TRP.
6. 6 . The method of claim 1 , wherein enabling the full duplex communication comprises: transmitting, to the SL UE, a message including receiving configuration information (RCI) state information indicating a slot or a resource for the SL UE to transmit the SL communication to the UE.
7. 7 . The method of claim 6 , wherein the message is transmitted in a unicast mode, a broadcast mode, or a groupcast mode.
8. 8 . The method of claim 6 , wherein the message is transmitted as a part of SL control information.
9. 9 . The method of claim 6 , wherein the message further indicates information from a self-interference measurement by the UE.
10. 10 . The method of claim 6 , wherein the message further indicates one or more of a single frequency requirement or a sub-band full duplex with frequency separation requirement.
11. 11 . A method of wireless communication by a sidelink (SL) user equipment (UE), comprising: receiving, from a UE, a message indicating to transmit a SL communication to the UE and availability of full duplex communication including simultaneous reception of the SL communication by the UE from the SL UE via a first transmission and reception point (TRP) of the UE and transmission of an uplink (UL) transmission from the UE to a base station via a second TRP of the UE; determining whether to transmit the SL communication to the UE in response to the receiving the message; and transmitting, to the UE, the SL communication in response to the determining.
12. 12 . The method of claim 11 , wherein the message includes receiving configuration information (RCI) state information indicating a slot or a resource for the SL UE to transmit the SL communication to the UE.
13. 13 . The method of claim 11 , wherein the message is transmitted in a unicast mode, a broadcast mode, or a groupcast mode.
14. 14 . The method of claim 11 , wherein the message is transmitted as a part of SL control information.
15. 15 . The method of claim 11 , wherein the message further indicates one or more of a single frequency requirement or a sub-band full duplex with frequency separation requirement.
16. 16 . The method of claim 11 , wherein the determining whether to transmit the SL communication to the UE comprises: comparing an interference measurement level of a SL beam between the SL UE and the UE to an interference threshold amount; and transmitting the SL communication in response to the interference measurement level being within an interference threshold range.
17. 17 . The method of claim 16 , further comprising: performing an interference measurement on the SL beam to obtain the interference measurement level.
18. 18 . The method of claim 16 , wherein the message further indicates the interference measurement level.
19. 19 . A user equipment (UE), comprising: a memory storing instructions; and one or more processors communicatively coupled with the memory and configured to: determine full duplex communication including simultaneous reception of a sidelink (SL) communication from an SL UE via a first transmission and reception point (TRP) of the UE and transmission of an uplink (UL) transmission to a base station via a second TRP of the UE, is available; enable, in response to determining the full duplex communication is available, the full duplex communication; receive, from the SL UE in response to enabling the full duplex communication, the SL communication via the first TRP; and transmit, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP.
20. 20 . The UE of claim 19 , wherein the one or more processors is further configured to: perform a self-interference measurement of a receiving beam of the first TRP while simultaneously transmitting UL information to the base station via the second TRP; and determine an interference level from the self-interference measurement is within an interference threshold range, wherein determining the full duplex communication is available is in response to determining the interference level.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a 35 U.S.C. § 371 National Phase Application of PCT Application No. PCT/CN2021/085513 filed Apr. 5, 2021, entitled “TECHNIQUES FOR SIDELINK AND UPLINK FULL DUPLEX COMMUNICATION WITH MULTIPLE TRANSMISSION AND RECEPTION POINTS,” which is assigned to the assignee hereof and hereby incorporated by reference herein. BACKGROUND Aspects of the present disclosure relate generally to wireless communications, and more particularly, to techniques for sidelink (SL) and uplink (UL) full duplex communication with multiple transmission and reception points (multi-TRPs). Wireless communication networks are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include code-division multiple access (CDMA) systems, time-division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, and single-carrier frequency division multiple access (SC-FDMA) systems. These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, and even global level. For example, a fifth generation (5G) wireless communications technology (which may be referred to as new radio (NR)) is envisaged to expand and support diverse usage scenarios and applications with respect to current mobile network generations. In an aspect, 5G communications technology may include: enhanced mobile broadband addressing human-centric use cases for access to multimedia content, services and data; ultra-reliable-low latency communications (URLLC) with certain specifications for latency and reliability; and massive machine type communications, which may allow a very large number of connected devices and transmission of a relatively low volume of non-delay-sensitive information. As the demand for mobile broadband access continues to increase, however, further improvements in NR communications technology and beyond may be desired. SUMMARY Systems, methods, and apparatus presented herein each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein. The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later. In an aspect, a method of wireless communication by a user equipment (UE) is provided. The method may include determining full duplex communication including simultaneous reception of a sidelink (SL) communication from an SL UE via a first transmission and receiving point (TRP) of the UE and transmission of an uplink (UL) transmission to a base station via a second TRP of the UE, is available. The method may also include enabling, in response to the determining the full duplex communication is available, the full duplex communication. The method may also include receiving, from the SL UE in response to the enabling the full duplex communication, the SL communication via the first TRP. The method may also include transmitting, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP. In another aspect, a method of wireless communication by an SL UE is provided. The method may include receiving, from a UE, a message indicating to transmit a SL communication to the UE and availability of full duplex communication including simultaneous reception of the SL communication by the UE from the SL UE via a first TRP of the UE and transmission of a UL transmission from the UE to a base station via a second TRP of the UE. The method may also include determining whether to transmit the SL communication to the UE in response to the receiving the message. The method may also include transmitting, to the UE, the SL communication in response to the determining. In another aspect, a UE is provided. The UE may include a memory storing instructions, and one or more processors communicatively coupled with the memory. The one or more processors may be configured to determine full duplex communication including simultaneous reception of an SL communication from an SL UE via a first TRP of the UE and transmission of a UL transmission to a base station via a second TRP of the UE, is