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US-12628127-B2 - Inter-user equipment (UE) coordination information for new radio (NR) sidelink communication

US12628127B2US 12628127 B2US12628127 B2US 12628127B2US-12628127-B2

Abstract

Various embodiments herein provide techniques for sending and receiving inter-user equipment (UE) coordination information for sidelink communication. The inter-UE coordination information may be provided via sidelink control information (SCI) and/or medium access control-control element (MAC-CE). Aspects regarding resource reservation and/or indication for UE coordination information are described. Additionally, new SCI formats for inter-UE coordination information are provided. Other embodiments may be described and claimed.

Inventors

  • Alexey Khoryaev
  • Mikhail Shilov
  • Sergey Panteleev
  • Kilian Roth

Assignees

  • INTEL CORPORATION

Dates

Publication Date
20260512
Application Date
20230109

Claims (17)

  1. 1 . One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors of a user equipment (UE) configure the UE to: receive an indication of a first resource set for inter-UE coordination information from another UE for sidelink communication; select a second resource set for a transmission by the UE based on the first resource set, wherein resources of the first resource set are excluded from consideration for the second resource set if feedback information is to be transmitted using medium access control-control element (MAC-CE) signaling and sidelink control information (SCI) signaling and the resources are after a first time period from the indication, and wherein resources of the first resource set are excluded from consideration for the second resource set if the feedback information is to be transmitted using only MAC-CE signaling and the resources are after a second time period from the indication, wherein the second time period is longer than the first time period.
  2. 2 . The one or more NTCRM of claim 1 , wherein: the first time period corresponds to a first processing time; and the second time period corresponds to the first processing time plus a second processing time.
  3. 3 . The one or more NTCRM of claim 1 , wherein the first resource set includes a same set of resources for an initial MAC-CE transmission and a MAC-CE re-transmission.
  4. 4 . The one or more NTCRM of claim 1 , wherein the instructions, when executed, are further to configure the UE to send the transmission using the selected second resource set.
  5. 5 . The one or more NTCRM of claim 1 , wherein the first resource set is a non-preferred resource set.
  6. 6 . The one or more NTCRM of claim 1 , wherein the indication of the first resource set is included in a SCI.
  7. 7 . The one or more NTCRM of claim 6 , wherein the SCI includes a resource set type to indicate whether the first resource set is a preferred resource set or a non-preferred resource set.
  8. 8 . The one or more NTCRM of claim 6 , wherein the SCI indicates multiple sets of resources, wherein each set of resources is indicated by a respective time resource indicator, a frequency resource indicator, and a resource reservation period.
  9. 9 . One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors of a user equipment (UE) configure the UE to: receive a second stage sidelink control information (SCI) that includes an indication of resources for UE coordination information for sidelink communication; and decode the UE coordination information according to the indicated resources, wherein resources of a first resource set for inter-UE coordination are excluded from consideration for a second resource set if feedback information is to be transmitted using medium access control-control element (MAC-CE) signaling and sidelink control information (SCI) signaling and the resources are after a first time period from the indication, and wherein resources of the first resource set are excluded from consideration for the second resource set if the feedback information is to be transmitted using only MAC-CE signaling and the resources are after a second time period from the indication, wherein the second time period is longer than the first time period.
  10. 10 . The one or more NTCRM of claim 9 , wherein the SCI includes a resource set type to indicate whether the resources correspond to a preferred resource set or a non-preferred resource set.
  11. 11 . The one or more NTCRM of claim 9 , wherein the SCI indicates multiple sets of resources, wherein each set of resources is indicated by a respective time resource indicator, a frequency resource indicator, and a resource reservation period.
  12. 12 . The one or more NTCRM of claim 11 , wherein a sl-MaxNumPerReserve value associated with each set of resources is the same or different.
  13. 13 . The one or more NTCRM of claim 9 , wherein the resources are to be used for one or both of SCI signaling and medium access control-control element (MAC-CE) signaling.
  14. 14 . The one or more NTCRM of claim 9 , wherein the instructions, when executed, are further to configure the UE to receive a first stage SCI that includes an indication that the second stage SCI includes the UE coordination information.
  15. 15 . The one or more NTCRM of claim 9 , wherein the indication of resources includes an indication of a starting slot for the resources.
  16. 16 . The one or more NTCRM of claim 9 , wherein the indication of resources includes an indication of a number of resources in a resource set.
  17. 17 . The one or more NTCRM of claim 9 , wherein the second stage SCI further includes an indication of a set of the UE coordination information that is included in the SCI.

Description

CROSS REFERENCE TO RELATED APPLICATION The present application claims priority to U.S. Provisional Patent Application No. 63/298,062, which was filed Jan. 10, 2022; and U.S. Provisional Patent Application No. 63/298,153, which was filed Jan. 10, 2022; the disclosures of which are hereby incorporated by reference. FIELD Various embodiments generally may relate to the field of wireless communications. For example, some embodiments may relate to inter-user equipment (UE) coordination information for new radio (NR) sidelink communication. BACKGROUND New radio (NR) Vehicle-to-anything (V2X) sidelink communication is a synchronous communication system with distributed resource allocation. User equipments (UEs) autonomously select resources for sidelink transmission based on predefined sensing and resource selection procedures implemented by transmit (TX) UEs. The sensing and resource selection procedures are designed to reduce potential sidelink conflicts in transmissions or resource reservations (e.g., collisions or half-duplex conflicts). Given that sensing and resource selection procedures are executed only by TX UEs and do not consider the environment at the receiver side there is non-negligible probability of sidelink conflicts (collisions). To address this problem, the inter-UE coordination feedback from RX UEs can be used to improve resource allocation decisions by TX UEs and improve overall reliability of NR-V2X sidelink communication. BRIEF DESCRIPTION OF THE DRAWINGS Embodiments will be readily understood by the following detailed description in conjunction with the accompanying drawings. To facilitate this description, like reference numerals designate like structural elements. Embodiments are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings. FIG. 1 illustrates Stage-2 sidelink control information (SCI) and medium access control-control element (MAC-CE) preparation timelines, in accordance with various embodiments. FIG. 2 illustrates Stage-2 SCI and MAC-CE processing timelines, in accordance with various embodiments. FIG. 3 schematically illustrates a wireless network in accordance with various embodiments. FIG. 4 schematically illustrates components of a wireless network in accordance with various embodiments. FIG. 5 is a block diagram illustrating components, according to some example embodiments, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein. FIG. 6 depicts an example procedure for practicing the various embodiments discussed herein. DETAILED DESCRIPTION The following detailed description refers to the accompanying drawings. The same reference numbers may be used in different drawings to identify the same or similar elements. In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular structures, architectures, interfaces, techniques, etc. in order to provide a thorough understanding of the various aspects of various embodiments. However, it will be apparent to those skilled in the art having the benefit of the present disclosure that the various aspects of the various embodiments may be practiced in other examples that depart from these specific details. In certain instances, descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the various embodiments with unnecessary detail. For the purposes of the present document, the phrases “A or B” and “A/B” mean (A), (B), or (A and B). Various embodiments herein provide techniques for sending and receiving inter-user equipment (UE) coordination information for sidelink communication. The inter-UE coordination information may be provided via sidelink control information (SCI) and/or medium access control-control element (MAC-CE). Aspects regarding resource reservation and/or indication for UE coordination information are described. Additionally, new SCI formats for inter-UE coordination information are provided. New radio (NR) Vehicle-to-anything (V2X) sidelink communication is a synchronous communication system with distributed resource allocation. UEs autonomously select resources for sidelink transmission based on predefined sensing and resource selection procedures implemented by transmit (TX) UEs. The sensing and resource selection procedures are designed to reduce potential sidelink conflicts in transmissions or resource reservations (e.g., collisions or half-duplex conflicts). Given that sensing and resource selection procedures are executed only by TX UEs and do not consider the environment at the receiver side there is non-negligible probability of sidelink conflicts (collisions). To address this problem, the inter-UE coordination feedback from RX UEs can be used to improve resource allocation decisions by TX UEs and impro