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EP-4741867-A2 - POSITIONING SIGNAL MEASURING METHOD AND DEVICE

EP4741867A2EP 4741867 A2EP4741867 A2EP 4741867A2EP-4741867-A2

Abstract

The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. The application provides a method performed by a user equipment, UE, in a wireless communication system, the method comprising identifying a time duration of an available positioning reference signal, PRS, resource; and performing a PRS measurement within a measurement period based on the time duration of the available PRS resource, wherein a PRS resource for the PRS measurement is unmuted and does not overlap with at least one of other signals or channels of higher priority.

Inventors

  • LI, Pengru
  • XIONG, Qi
  • SUN, Feifei

Assignees

  • Samsung Electronics Co., Ltd.

Dates

Publication Date
20260513
Application Date
20230106

Claims (15)

  1. A method performed by a user equipment, UE, in a wireless communication system, the method comprising: identifying a time duration of an available positioning reference signal, PRS, resource; and performing a PRS measurement within a measurement period based on the time duration of the available PRS resource, wherein a PRS resource for the PRS measurement is unmuted and does not overlap with at least one of other signals or channels of higher priority.
  2. The method of claim 1, wherein the PRS resource for the PRS measurement is at least partially overlapped with a PRS processing window, PPW, without measurement gaps.
  3. The method of claim 1, wherein the UE is in a radio resource control, RRC, inactive state.
  4. The method of claim 1, wherein the available PRS resource is for at least one of PRS reference signal received power, PRS-RSRP, or UE Rx - Tx time difference.
  5. A method performed by a base station in a wireless communication system, the method comprising: transmitting, to a user equipment, UE, a positioning reference signal, PRS, on a PRS resource for the PRS measurement, wherein the PRS resource for the PRS measurement is unmuted and does not overlap with at least one of other signals or channels of higher priority.
  6. The method of claim 5, wherein the PRS resource for the PRS measurement is at least partially overlapped with a PRS processing window, PPW, without measurement gaps.
  7. The method of claim 5, wherein the UE is in a radio resource control, RRC, inactive state.
  8. The method of claim 5, wherein the available PRS resource is for at least one of PRS reference signal received power, PRS-RSRP, or UE Rx - Tx time difference.
  9. A user equipment, UE, comprising: at least one transceiver; at least one processor communicatively coupled to the at least one transceiver; and at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the UE to: identify a time duration of an available positioning reference signal, PRS, resource, and perform a PRS measurement within a measurement period based on the time duration of the available PRS resource, wherein a PRS resource for the PRS measurement is unmuted and does not overlap with at least one of other signals or channels of higher priority.
  10. The UE of claim 9, wherein the PRS resource for the PRS measurement is at least partially overlapped with a PRS processing window, PPW, without measurement gaps.
  11. The UE of claim 9, wherein the UE is in a radio resource control, RRC, inactive state.
  12. The UE of claim 9, wherein the available PRS resource is for at least one of PRS reference signal received power, PRS-RSRP, or UE Rx - Tx time difference.
  13. A base station comprising: at least one transceiver; at least one processor communicatively coupled to the at least one transceiver; and at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the base station to: transmit, to a user equipment, UE, a positioning reference signal, PRS, on a PRS resource for the PRS measurement, wherein the PRS resource for the PRS measurement is unmuted and does not overlap with at least one of other signals or channels of higher priority.
  14. The base station of claim 13, wherein the PRS resource for the PRS measurement is at least partially overlapped with a PRS processing window, PPW, without measurement gaps.
  15. The base station of claim 13, wherein the UE is in a radio resource control, RRC, inactive state.

Description

[Technical Field] The invention relates to a positioning signal measuring method and device in a wireless communication system. [Background Art] Fifth generation (5G) mobile communication technologies define broad frequency bands such that high transmission rates and new services are possible, and can be implemented not only in "Sub 6GHz" bands such as 3.5GHz, but also in "Above 6GHz" bands referred to as mmWave including 28GHz and 39GHz. In addition, it has been considered to implement sixth generation (6G) mobile communication technologies (referred to as Beyond 5G systems) in terahertz (THz) bands (for example, 95GHz to 3THz bands) in order to accomplish transmission rates fifty times faster than 5G mobile communication technologies and ultra-low latencies one-tenth of 5G mobile communication technologies. At the beginning of the development of 5G mobile communication technologies, in order to support services and to satisfy performance requirements in connection with enhanced Mobile BroadBand (eMBB), Ultra Reliable Low Latency Communications (URLLC), and massive Machine-Type Communications (mMTC), there has been ongoing standardization regarding beamforming and massive multiple-input multiple-output (MIMO) for mitigating radio-wave path loss and increasing radio-wave transmission distances in mmWave, supporting numerologies (for example, operating multiple subcarrier spacings) for efficiently utilizing mmWave resources and dynamic operation of slot formats, initial access technologies for supporting multi-beam transmission and broadbands, definition and operation of BandWidth Part (BWP), new channel coding methods such as a Low Density Parity Check (LDPC) code for large amount of data transmission and a polar code for highly reliable transmission of control information, L2 pre-processing, and network slicing for providing a dedicated network specialized to a specific service. Currently, there are ongoing discussions regarding improvement and performance enhancement of initial 5G mobile communication technologies in view of services to be supported by 5G mobile communication technologies, and there has been physical layer standardization regarding technologies such as Vehicle-to-everything (V2X) for aiding driving determination by autonomous vehicles based on information regarding positions and states of vehicles transmitted by the vehicles and for enhancing user convenience, New Radio Unlicensed (NR-U) aimed at system operations conforming to various regulation-related requirements in unlicensed bands, New Radio (NR) User Equipment (UE) Power Saving, Non-Terrestrial Network (NTN) which is UE-satellite direct communication for providing coverage in an area in which communication with terrestrial networks is unavailable, and positioning. Moreover, there has been ongoing standardization in air interface architecture/protocol regarding technologies such as Industrial Internet of Things (IIoT) for supporting new services through interworking and convergence with other industries, Integrated Access and Backhaul (IAB) for providing a node for network service area expansion by supporting a wireless backhaul link and an access link in an integrated manner, mobility enhancement including conditional handover and Dual Active Protocol Stack (DAPS) handover, and two-step random access for simplifying random access procedures (2-step random access channel (RACH) for NR). There also has been ongoing standardization in system architecture/service regarding a 5G baseline architecture (for example, service based architecture or service based interface) for combining Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and Mobile Edge Computing (MEC) for receiving services based on UE positions. As 5G mobile communication systems are commercialized, connected devices that have been exponentially increasing will be connected to communication networks, and it is accordingly expected that enhanced functions and performances of 5G mobile communication systems and integrated operations of connected devices will be necessary. To this end, new research is scheduled in connection with eXtended Reality (XR) for efficiently supporting Augmented Reality (AR), Virtual Reality (VR), Mixed Reality (MR) and the like, 5G performance improvement and complexity reduction by utilizing Artificial Intelligence (AI) and Machine Learning (ML), AI service support, metaverse service support, and drone communication. Furthermore, such development of 5G mobile communication systems will serve as a basis for developing not only new waveforms for providing coverage in terahertz bands of 6G mobile communication technologies, multi-antenna transmission technologies such as Full Dimensional MIMO (FD-MIMO), array antennas and large-scale antennas, metamaterial-based lenses and antennas for improving coverage of terahertz band signals, high-dimensional space multiplexing technology using Orbital Angular Momentum (OAM)