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JP-7855645-B2 - Prioritizing uplink and sidelink transmissions

JP7855645B2JP 7855645 B2JP7855645 B2JP 7855645B2JP-7855645-B2

Inventors

  • イェ チュンシュアン
  • チャン ダウェイ
  • フ ハイジン
  • スン ハイトン
  • オテリ オゲネコメ
  • ゼン ウェイ
  • ヤン ウェイドン
  • チェン ユチン
  • ウ ジビン

Assignees

  • アップル インコーポレイテッド

Dates

Publication Date
20260508
Application Date
20240624
Priority Date
20200407

Claims (13)

  1. A user equipment (UE) device, Identify the radio interface (Uu) uplink (UL) control information (UCI) transmission transmitted by the UE, the sidelink (SL) hybrid automatic repetition request (HARQ) report transmitted by the UE , and at least one additional SL HARQ report transmitted by the UE . Determine the priority value of the Uu UCI transmission, Based at least in part on the priority value determined above, the type of transmission associated with the Uu UCI transmission is determined. Based on the determined transmission type associated with the UL transmission, the UE transmissions are prioritized. In response to determining that the type of transmission is an extended mobile broadband (eMBB) UCI transmission, Determine the priority value associated with the aforementioned SL HARQ report, Determine the additional priority value associated with each of the at least one additional SL HARQ reports, The priority value associated with the SL HARQ report or the additional priority value associated with the at least one additional SL HARQ report is compared with the priority threshold, and when compared with the priority threshold, the lowest priority value of the priority value and the additional priority value associated with the SL HARQ report is used. The transmission is prioritized based on the comparison between the priority threshold and the priority value of the SL HARQ report. One or more processors configured as follows: A memory configured to store the Uu UCI and the SL HARQ report, A user equipment (UE) device that includes the following.
  2. The one or more processors described above The type of transmission is determined to be ultra-reliable low-latency communication (URLLC) UCI transmission, Based on the determination that the type of transmission is the URLC UCI transmission, The aforementioned Uu UCI transmission is sent, Drop the aforementioned SL HARQ report. It is further structured in such a way. The apparatus according to claim 1.
  3. The apparatus according to claim 2, wherein the URLLC UCI transmission includes one of the following: a URLLC downlink HARQ-ACK, a channel status information (CSI) report, or a schedule request (SR).
  4. The one or more processors described above Based on a comparison of the priority value associated with the SL HARQ report and the priority threshold, it is determined that the priority value is lower than the priority threshold. Based on the determination that the priority value is lower than the priority threshold, The aforementioned SL HARQ report is transmitted, The aforementioned eMBB UCI transmission is dropped. The apparatus according to claim 1 , further configured as follows.
  5. The one or more processors described above Based on a comparison between the priority value associated with the SL HARQ report and the priority threshold, it is determined that the priority value is higher than the priority threshold. Based on the determination that the priority value is higher than the priority threshold, The aforementioned eMBB UCI transmission is sent, Drop the aforementioned SL HARQ report. The apparatus according to claim 1 , further configured as follows.
  6. A computer-readable storage medium, which, when executed by a processor of a user device (UE) configured to determine the priority of simultaneous transmissions of the user device (UE) on a physical uplink control channel (PUSCH) in a 5G new radio (NR) network, the processor is instructed to: Identify uplink (UL) data transmissions and sidelink (SL) hybrid automatic repeating request (HARQ) reports that are multiplexed , and at least one additional SL HARQ report transmitted by the UE , Determine the priority value of the UL data transmission. Based at least in part on the determined UL data priority value, the type of transmission associated with the UL data transmission is determined. Based on the determined transmission type associated with the UL data transmission, the transmissions of the UE are prioritized. In response to determining that the type of transmission is an extended mobile broadband (eMBB) UCI transmission, Determine the priority value associated with the aforementioned SL HARQ report. Determine the additional priority value associated with each of the at least one additional SL HARQ reports. The priority value associated with the SL HARQ report or the additional priority value associated with the at least one additional SL HARQ report is compared with the priority threshold, and when compared with the priority threshold, the lowest priority value of the priority value and the additional priority value associated with the SL HARQ report is used. A computer-readable storage medium including instructions for prioritizing transmissions based on the comparison between the priority threshold and the priority value of the SL HARQ report .
  7. The instruction causes the processor to The type of transmission is determined to be ultra-reliable low-latency communication (URLLC) UL data transmission. Based on the determination that the type of transmission is the URLLC UL data transmission, The UL data transmission is sent, Drop the aforementioned SL HARQ report. The computer-readable storage medium according to claim 6 , further configured as follows.
  8. The instruction causes the processor to The type of transmission is determined to be an extended mobile broadband (eMBB) UL data transmission. Based on the determination that the type of transmission is the eMBBUL data transmission, The priority value of the UL data transmission is compared with the UL priority threshold, Based on the comparison between the priority value of the UL data transmission and the UL priority threshold, the transmission of the UE is prioritized. The computer-readable storage medium according to claim 6 , further configured as follows.
  9. The instruction causes the processor to If it is determined that the priority value of the UL data transmission is lower than the UL priority threshold, Based on the determination that the priority value of the UL data transmission is lower than the UL priority threshold, The UL data transmission is sent, Drop or delay the aforementioned SL HARQ report. The computer-readable storage medium according to claim 8 , further configured as follows.
  10. The instruction causes the processor to If it is determined that the priority value of the UL data transmission is higher than the UL priority threshold, Based on the determination that the priority value of the UL data transmission is higher than the UL priority threshold, The SL control information (SCI) corresponding to the SL HARQ report is processed, and the priority value associated with the SL HARQ report is determined accordingly. The priority value of the SL HARQ report is compared with the SL priority threshold. The transmission is prioritized based on the comparison between the priority value of the SL HARQ report and the SL priority threshold. The computer-readable storage medium according to claim 8 , further configured as follows.
  11. The instruction causes the processor to If the priority value of the SL HARQ report is determined to be lower than the SL priority threshold, Based on the determination that the priority value of the SL HARQ report is lower than the SL priority threshold, The aforementioned SL HARQ report is transmitted, Dropping or delaying the aforementioned UL data transmission, The computer-readable storage medium according to claim 10 , further configured as follows.
  12. The instruction causes the processor to If the priority value of the SL HARQ report is determined to be higher than the SL priority threshold, Based on the determination that the priority value of the SL HARQ report is higher than the SL priority threshold, The aforementioned UL data transmission is sent, Drop or delay the aforementioned SL HARQ report. The computer-readable storage medium according to claim 10 , further configured as follows.
  13. The instruction causes the processor to If it is determined that the priority value of the UL data transmission is lower than the priority value of the SL HARQ report, Based on the determination that the priority value of the UL data transmission is lower than the priority value of the SL HARQ report, The aforementioned UL data transmission is sent, Drop or delay the aforementioned SL HARQ report. The computer-readable storage medium according to claim 6 , further configured as follows.

Description

This application relates, in general terms, to wireless communication systems, and more specifically, to vehicle-to-vehicle (V2X) prioritization between sidelink (SL) transmissions (Tx) and uplink (UL) transmissions (Tx). Wireless mobile communication technology uses various standards and protocols to transmit data between base stations and wireless mobile devices. Standards and protocols for wireless communication systems include the IEEE 802.16 standard, commonly known to industry groups as the Third Generation Partnership Project (3GPP) Long-Term Evolution (LTE) (e.g., 4G) or New Radio (NR) (e.g., 5G), Worldwide Interoperability for Microwave Access (WiMAX), and the IEEE 802.11 standard for Wireless Local Area Networks (WLAN), commonly known to industry groups as Wi-Fi. In an LTE system's 3GPP radio access network (RAN), base stations may include RAN nodes such as Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (also commonly called Evolved Node B, Extended Node B, eNodeB, or eNB) and/or E-UTRAN Radio Network Controller (RNC) that communicate with radio communication devices known as user equipment (UE). In a fifth-generation (5G) radio RAN, RAN nodes may include 5G nodes, NR nodes, or gNode B (gNB). A RAN communicates between RAN nodes and UEs using radio access technology (RAT). Examples of RANs include the Global System for Mobile Communications (GSM), Enhanced Data Rates for GSM Evolution (EDGE) RAN (GERAN), Universal Terrestrial Radio Access Network (UTRAN), and/or E-UTRAN, which provide access to communication services via the core network. Each RAN operates according to a specific 3GPP RAT. For example, GERAN implements GSM and/or EDGE RAT, UTRAN implements Universal Mobile Communications System (UMTS) RAT or other 3GPP RAT, and E-UTRAN implements LTE RAT. To facilitate the identification of any particular element or action, the most significant digit (singular or plural) of the reference number refers to the figure number in which that element was first introduced. This document shows an LTE V2X prioritization scheme in the physical layer according to one embodiment.This document shows an NR V2X prioritization scheme between SL data and UL data according to one embodiment.This describes a procedure for prioritizing side links and uplinks according to one embodiment.A method according to one embodiment is shown.A method according to one embodiment is shown.A method according to one embodiment is shown.This document illustrates an exemplary service-based architecture in a specific embodiment.A UE according to one embodiment is shown.A network node according to one embodiment is shown. User equipment (UE) can support both sidelink (SL) and uplink (UL) transmissions. SL transmissions may be on the same or different carriers as UL transmissions. Sometimes, time overlap may occur between SL and UL transmissions. Due to any given total transmit power limits of a UE, the UE may not be able to provide the transmit power necessary for both SL and UL transmissions. Therefore, power reduction schemes for different carriers and transmit drop schemes for the same carrier may be beneficial. Power reduction or transmit drop may be applied to lower-priority transmits (e.g., SL or UL). Therefore, prioritization between SL and UL is necessary. Figure 1 shows a visual representation of the LTE V2X prioritization scheme 100, representing the prioritization of sidelink (SL) transmits over uplink (UL) transmits. As partially shown by blocks 102 and 104 and the SL priority threshold 106, if the SL control information (SCI) priority value is higher than the corresponding SL priority threshold, simultaneous UL transmits will take precedence (i.e., lower priority values indicate higher priority), as further described herein. Therefore, if the SCI priority value is lower than the corresponding SL priority threshold, SL transmits will take precedence over simultaneous UL transmits, as further described herein. More specifically, in the LTE V2X physical layer, if SL transmissions and UL transmissions are on the same carrier, and the value of the "Priority" field in the SCI corresponding to the SL transmission is smaller than the higher-layer parameter "thresSL-TxPrioritization", the UL transmission is dropped. Otherwise, the SL transmission is dropped. In particular, the lower the value of the SCI's "Priority" field, the higher the priority of the corresponding SL data; conversely, the higher the value of the SCI's "Priority" field, the lower the priority of the corresponding SL data. In the LTE V2X physical layer, if SL transmission and UL transmission are on different carriers, and the value of the "priority" field in the SCI corresponding to SL transmission is less than the upper-layer parameter "thresSL-TxPrioritization", the UL transmission power is adjusted so that the total UE transmission power does not exceed PCMAX . Otherwise, the SL transmission power is adjusted so that the total UE transmissio