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EP-4740620-A1 - METHOD AND APPARATUS FOR MANAGING LOW POWER WAKE UP RADIO IN A WIRELESS NETWORK SYSTEM

EP4740620A1EP 4740620 A1EP4740620 A1EP 4740620A1EP-4740620-A1

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide a method and system for managing low power wake up radio in a wireless network system. The method comprises detecting, by UE, Low power-Wake up radio (LP-WUR) configuration provided by network apparatus.

Inventors

  • RAJENDRAN, Sriganesh
  • SHRIVASTAVA, VINAY KUMAR
  • ABRAHAM, Aby Kanneath
  • SHARMA, DIWAKAR

Assignees

  • Samsung Electronics Co., Ltd.

Dates

Publication Date
20260513
Application Date
20240805

Claims (14)

  1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: receiving, from a network apparatus, system information including configuration information associated with a low power - wake up signal (LP-WUS); measuring a serving cell; and in case that a measurement result of the serving cell is below a threshold: stopping monitoring, based on a wake up receiver (LR), the LP-WUS, and monitoring, based on a main radio (MR), a paging occasion (PO) for a paging message or a paging early indication (PEI).
  2. The method of claim 1, further comprising: in case that the measurement result of the serving cell is above a threshold, monitoring the LP-WUS.
  3. The method of claim 1, wherein at least one of information on the threshold or information on low power -synchronization signal (LP-SS) is received from the network apparatus.
  4. The method of claim 2, wherein the UE is in coverage of the LP-WUS, in case that the measurement result of the serving cell is above the threshold, and wherein the UE is out of coverage of the LP-WUS, in case that the measurement result of the serving cell is below the threshold.
  5. The method of claim 1, further comprising: in case that the measurement result of the serving cell is below the threshold: transmitting, from the LR to the MR, at least one of: an out of coverage indication message indicating that the LR is out of coverage of the LP-WUS, an LR monitor indication message indicating that the LR does not monitor the LP-WUS, or a wake up indication indicating that the LP-WUS is intended for the UE.
  6. The method of claim 5, further comprising: transmitting, from the MR of the UE to the network apparatus, a message indicating that the LR is out of coverage, in case that the MR receives the out of coverage indication message from the LR of the UE.
  7. The method of claim 1, wherein a monitoring of the LP-WUS is performed by the LR of the UE, and wherein a monitoring of the paging occasion is performed by the MR of the UE.
  8. A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver; and at least one processor coupled with the transceiver, and configured to: receive, from a network apparatus, system information including configuration information associated with low power - wake up signal (LP-WUS), measure a serving cell, and in case that a measurement result of the serving cell is below a threshold: stop monitoring, based on a wake up receiver (LR), the LP-WUS, and monitor, based on a main radio (MR), a paging occasion (PO) for a paging message or a paging early indication (PEI).
  9. The UE of claim 8, wherein the at least one processor is further configured to, in case that the measurement result of the serving cell is above a threshold, monitor the LP-WUS.
  10. The UE of claim 8, wherein at least one of information on the threshold or information on low power -synchronization signal (LP-SS) is received from the network apparatus.
  11. The UE of claim 9, wherein the UE is in coverage of the LP-WUS, in case that the measurement result of the serving cell is above the threshold, and wherein the UE is out of coverage of the LP-WUS, in case that the measurement result of the serving cell is below the threshold.
  12. The UE of claim 8, wherein, in case that the measurement result of the serving cell is below the threshold, the at least one processor is further configured to transmit, from the LR to the MR, at least one of: an out of coverage indication message indicating that the LR is out of coverage of the LP-WUS, an LR monitor indication message indicating that the LR does not monitor the LP-WUS, or a wake up indication indicating that the LP-WUS is intended for the UE.
  13. The UE of claim 12, wherein the at least one processor is further configured to transmit, from the MR of the UE to the network apparatus, a message indicating that the LR is out of coverage, in case that the MR receives the out of coverage indication message from the LR of the UE.
  14. The UE of claim 8, wherein a monitoring of the LP-WUS is performed by the LR of the UE, and wherein a monitoring of the paging occasion is performed by the MR of the UE.

Description

METHOD AND APPARATUS FOR MANAGING LOW POWER WAKE UP RADIO IN A WIRELESS NETWORK SYSTEM The disclosure relates to wireless communication and more particularly relates to a method and system for managing low power wake up radio in a wireless network system. 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 6 gigahertz (GHz)" bands such as 3.5GHz, but also in "Above 6GHz" bands referred to as millimeter wave (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 multi input multi 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 anten