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KR-20260065797-A - Method for transmitting a positioning reference signal in a wireless communication system and device for the same

KR20260065797AKR 20260065797 AKR20260065797 AKR 20260065797AKR-20260065797-A

Abstract

The present disclosure relates to a method performed by a User Equipment (UE) in a wireless communication system. Specifically, the method comprises the steps of: determining one of a dedicated resource pool and a shared resource pool to transmit a Positioning Reference Signal (PRS); generating a Medium Access Control (MAC) Protocol Data Unit (PDU) containing a header and the PRS based on the determination of the shared resource pool to transmit the PRS; and transmitting a shared channel containing control information and the MAC PDU over the shared resource pool, wherein the header includes a portion of destination information and a portion of source information, and the control information includes the remainder of the destination information and the remainder of the source information.

Inventors

  • 남종길
  • 고우석
  • 서한별
  • 이승민

Assignees

  • 엘지전자 주식회사

Dates

Publication Date
20260511
Application Date
20240802
Priority Date
20230908

Claims (12)

  1. As a method performed by UE (User Equipment) in a wireless communication system, A step of determining one of a dedicated resource pool and a shared resource pool to transmit a PRS (Positioning Reference Signal); Based on the determination of the public resource pool for transmitting the above PRS, the step of generating a MAC (Medium Access Control) PDU (Protocol Data Unit) including a header and the above PRS; and The method includes the step of transmitting a shared channel containing control information and the MAC PDU over the shared resource pool. The above header includes a portion of the destination information and a portion of the source information, and The above control information is characterized by including the remainder of the destination information and the remainder of the source information. method.
  2. In Article 1, A step of receiving feedback information associated with the above public channel; and Characterized by further including a step of triggering the retransmission of the MAC PDU based on the above feedback information, method.
  3. In Article 1, The above MAC PDU is, Characterized by including only the above PRS without MAC SDU (Service Data Unit) transmitted from the upper layer, method.
  4. In Article 1, It further includes the step of transmitting a resource allocation request message to transmit the above PRS to a network, The above resource allocation request message is, Characterized by including time resource information and frequency resource information for the above PRS, method.
  5. In Article 1, The method further comprises the step of transmitting a control channel including the control information and resource allocation information of the public channel including the MAC PDU. method.
  6. As UE (User equipment) in a wireless communication system, At least one transmitter/receiver; At least one processor; and It includes at least one computer memory operablely connectable to the at least one processor and, when executed, stores instructions that cause the at least one processor to perform operations for the UE, and The above operations are, A step of determining one of a dedicated resource pool and a shared resource pool to transmit a PRS (Positioning Reference Signal); Based on the determination of the public resource pool for transmitting the above PRS, the step of generating a MAC (Medium Access Control) PDU (Protocol Data Unit) including a header and the above PRS; and The method includes the step of transmitting a shared channel containing control information and the MAC PDU over the shared resource pool. The above header includes a portion of the destination information and a portion of the source information, and The above control information is characterized by including the remainder of the destination information and the remainder of the source information. UE.
  7. In Article 6, The above operations are, A step of receiving feedback information associated with the above public channel; and Characterized by further including a step of triggering the retransmission of the MAC PDU based on the above feedback information, UE.
  8. In Article 6, The above MAC PDU is, Characterized by including only the above PRS without MAC SDU (Service Data Unit) transmitted from the upper layer, UE.
  9. In Article 6, It further includes the step of transmitting a resource allocation request message to transmit the above PRS to a network, The above resource allocation request message is, Characterized by including time resource information and frequency resource information for the above PRS, UE.
  10. In Article 6, The above operations are, The method further comprises the step of transmitting a control channel including the control information and resource allocation information of the public channel including the MAC PDU. UE.
  11. In a processing device in a wireless communication system, At least one processor; and It includes at least one computer memory operablely connectable to the at least one processor and, when executed, stores instructions that cause the at least one processor to perform operations for the UE (User Equipment). The above operations are, A step of determining one of a dedicated resource pool and a shared resource pool to transmit a PRS (Positioning Reference Signal); Based on the determination of the public resource pool for transmitting the above PRS, the step of generating a MAC (Medium Access Control) PDU (Protocol Data Unit) including a header and the above PRS; and The method includes the step of transmitting a shared channel containing control information and the MAC PDU over the shared resource pool. The above header includes a portion of the destination information and a portion of the source information, and The above control information is characterized by including the remainder of the destination information and the remainder of the source information. Processing unit.
  12. In a computer-readable storage medium, The above storage medium stores at least one program code including instructions that cause at least one processor to perform operations for a UE (User Equipment) when executed, and The above operations are, A step of determining one of a dedicated resource pool and a shared resource pool to transmit a PRS (Positioning Reference Signal); Based on the determination of the public resource pool for transmitting the above PRS, the step of generating a MAC (Medium Access Control) PDU (Protocol Data Unit) including a header and the above PRS; and The method includes the step of transmitting a shared channel containing control information and the MAC PDU over the shared resource pool. The above header includes a portion of the destination information and a portion of the source information, and The above control information is characterized by including the remainder of the destination information and the remainder of the source information. Computer-readable storage media.

Description

Method for transmitting a positioning reference signal in a wireless communication system and device for the same Method for transmitting a positioning reference signal in a wireless communication system and device for the same This specification relates to a wireless communication system. More specifically, it relates to a method for transmitting a positioning reference signal in a wireless communication system and an apparatus for the same. Wireless communication systems are being widely deployed to provide various types of communication services, such as voice and data. Generally, a wireless communication system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.). Examples of multiple access systems include CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access) systems. Sidelink (SL) refers to a communication method in which UEs establish a direct link to each other, allowing them to directly exchange voice or data without passing through a Base Station (BS). SL is being considered as a solution to address the burden on base stations caused by rapidly increasing data traffic. V2X (vehicle-to-everything) refers to a communication technology that exchanges information with other vehicles, pedestrians, and infrastructure-equipped objects through wired or wireless communication. V2X can be classified into four types: V2V (vehicle-to-vehicle), V2I (vehicle-to-infrastructure), V2N (vehicle-to-network), and V2P (vehicle-to-pedestrian). V2X communication can be provided through PC5 interfaces and/or Uu interfaces. Meanwhile, as more communication devices require larger communication capacities, the need for improved mobile broadband communication compared to existing Radio Access Technology (RAT) is emerging. Accordingly, communication systems considering services or terminals sensitive to reliability and latency are being discussed. Next-generation radio access technology that incorporates improved mobile broadband communication, Massive Machine Type Communication (MTC), and Ultra-Reliable and Low Latency Communication (URLC) can be referred to as new radio access technology (new RAT) or new radio (NR). Vehicle-to-everything (V2X) communication can also be supported in NR. The attached drawings, included as part of the detailed description to aid in understanding the implementations of this specification, provide examples of the implementations of this specification and describe the implementations of this specification together with the detailed description: Figure 1 shows the structure of an NR system. Figure 2 shows the functional split between NG-RAN and 5GC. Figure 3 shows the radio protocol architecture of an NR system. Figure 4 illustrates the structure of a radio frame of an NR system. Figure 5 illustrates a resource grid of slots in an NR system. FIG. 6 illustrates a communication system (1) to which the present disclosure is applicable. FIGS. 7 and 8 show a wireless device according to one embodiment of the present disclosure. FIG. 9 shows a vehicle or an autonomous vehicle according to one embodiment of the present disclosure. Figure 10 shows the radio protocol architecture for SL communication. Figure 11 shows the synchronization source or synchronization reference of V2X. Figure 12 illustrates a procedure in which a terminal performs V2X or SL communication depending on the transmission mode. FIG. 13 shows three cast types according to one embodiment of the present disclosure. FIG. 14 shows an example of a sensing operation according to one embodiment of the present disclosure. FIG. 15 shows an example of an architecture in a 5G system that enables positioning of a UE connected to an NG-RAN (Next Generation-Radio Access Network) or E-UTRAN. Figure 16 shows an example of a network implementation for measuring the location of a UE. Figure 17 shows an example of a protocol layer used to support the transmission of LTE Positioning Protocol (LPP) messages between an LMF and a UE. Figure 18 shows an example of a protocol layer used to support the transmission of NRPPa (NR Positioning Protocol A) PDUs between an LMF and an NG-RAN node. FIG. 19 is a drawing for explaining an OTDOA (Observed Time Difference Of Arrival) positioning method according to one embodiment of the present disclosure. FIG. 20 is a flowchart relating to the PRS transmission method proposed in the present disclosure. The following technologies can be used in various wireless access systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be imple