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EP-4742796-A1 - METHOD AND DEVICE FOR WIRELESS COMMUNICATION USING LOW POWER WAKE-UP RECEIVER

EP4742796A1EP 4742796 A1EP4742796 A1EP 4742796A1EP-4742796-A1

Abstract

Provided is a method of a UE for performing wireless communication by using a low power wakeup receiver (LP-WUR). The method may include receiving configuration information, about a wireless resource used in receiving a low power wakeup signal (LP-WUS), in a first frequency band via a transceiver, and monitoring the low power wakeup signal in a second frequency band via a low power wakeup receiver on the basis of the configuration information.

Inventors

  • PARK, KI HYEON
  • PARK, KYU JIN

Assignees

  • KT Corporation

Dates

Publication Date
20260513
Application Date
20240705

Claims (15)

  1. A method for a user equipment (UE) performing wireless communication using a low power wakeup receiver (LP-WUR), the method comprising: receiving configuration information on a radio resource used for receiving a low power wakeup signal (LP-WUS) in a first frequency band through a transceiver; and monitoring the low power wakeup signal in a second frequency band through the low power wakeup receiver based on the configuration information.
  2. The method of claim 1, wherein the configuration information is received through higher layer signaling.
  3. The method of claim 1, wherein the configuration information includes configuration information on a bandwidth of the second frequency band.
  4. The method of claim 1, wherein the configuration information includes information on a time resource configured for receiving the low power wakeup signal.
  5. The method of claim 1, wherein the configuration information includes information on a sequence applied to the low power wakeup signal.
  6. A method for a base station controlling an operation of a user equipment (UE) performing wireless communication using a low power wakeup receiver (LP-WUR), the method comprising: transmitting configuration information on a radio resource used for transmission of a low power wakeup signal (LP-WUS) in a first frequency band; and transmitting the low power wakeup signal in a second frequency band based on the configuration information.
  7. The method of claim 6, wherein the configuration information is transmitted through higher layer signaling.
  8. The method of claim 6, wherein the configuration information includes information on a bandwidth of the second frequency band.
  9. The method of claim 6, wherein the configuration information includes information on a time resource configured for transmitting the low power wakeup signal.
  10. The method of claim 6, wherein the configuration information includes information on a sequence applied to the low power wakeup signal.
  11. A user equipment (UE) performing wireless communication using a low power wakeup receiver (LP-WUR), the UE comprising: a low power wakeup receiver; a transceiver; and a controller configured to control operations of the low power wakeup receiver and the transceiver, wherein the controller receives configuration information on a radio resource used for reception of a low power wakeup signal (LP-WUS) in a first frequency band through the transceiver, and monitors the low power wakeup signal in a second frequency band through the low power wakeup receiver based on the configuration information.
  12. The UE of claim 11, wherein the configuration information is received through higher layer signaling.
  13. The UE of claim 11, wherein the configuration information includes information on a bandwidth of the second frequency band.
  14. The UE of claim 11, wherein the configuration information includes information on a time resource configured for receiving the low power wakeup signal.
  15. The UE of claim 11, wherein the configuration information includes information on a sequence applied to the low power wakeup signal.

Description

Technical Field The present disclosure proposes a method and device for performing wireless communication using a low power wakeup receiver in a next generation radio access network (referring to "5G", "NR [New Radio]", "5G-Advanced", "6G" or a subsequent 3GPP radio access network as described herein). Background Art The 3GPP continues research and development of wireless communication technology. In wireless communication systems, in addition to latency, reliability, and availability, energy efficiency of user equipment (UE) is also a very important consideration. Currently, a UE may need to be charged frequently according to the individual usage patterns. Designing for extending the battery lifetime of the UE is essential to enhance energy efficiency and provide a better user experience. Energy efficiency is critical for UEs that do not have a steady energy source. Power consumption may vary depending on the length of a configured wake-up period. However, since high latency occurs, e.g., when a large DRX cycle is used to meet the battery lifespan requirements, it may not be suitable for services requiring both long battery lifetime and low latency. As part of this aspect, a specific design is needed to enable the UE to consume power more efficiently during a wake-up operation. Detailed Description of the Invention Technical Problem The disclosure may provide a method and device for performing wireless communication using a low power wakeup receiver according to embodiments. Technical Solution In one aspect, the present disclosure may provide a method for a UE performing wireless communication using a low power wakeup receiver (LP-WUR). The method may include receiving configuration information on a radio resource used for reception of a low power wakeup signal (LP-WUS) in a first frequency band through a transceiver and monitoring the low power wakeup signal in a second frequency band through the low power wakeup receiver based on the configuration information. In another aspect, the present disclosure may provide a method for a base station controlling an operation of a UE performing wireless communication using a low power wakeup receiver (LP-WUR). The method may include transmitting configuration information on a radio resource used for transmission of a low power wakeup signal (LP-WUS) in a first frequency band and transmitting the low power wakeup signal in a second frequency band based on the configuration information. In yet another aspect, the present disclosure may provide a UE performing wireless communication using a low power wakeup receiver (LP-WUR). The UE may include a low power wakeup receiver, a transceiver, and a controller controlling operations of the low power wakeup receiver and the transceiver, wherein the controller receives configuration information on a radio resource used for reception of a low power wakeup signal (LP-WUS) in a first frequency band through the transceiver and monitors the low power wakeup signal in a second frequency band through the low power wakeup receiver based on the configuration information. In further another aspect, the present disclosure may provide a base station controlling an operation of a UE performing wireless communication using a low power wakeup receiver (LP-WUR). The base station may include a transmitter, a receiver, and a controller controlling operations of the transmitter and the receiver, wherein the controller transmits configuration information on a radio resource used for transmission of a low power wakeup signal (LP-WUS) in a first frequency band and transmits the low power wakeup signal in a second frequency band based on the configuration information. Advantageous Effects According to the embodiments, a wakeup operation may be performed with efficient power consumption by using a low power wakeup receiver. Further, according to the embodiments, time and frequency resources may be configured for transmitting/receiving a wakeup signal in a form receivable by a receiver operating with low standby power. Brief Description of Drawings FIG. 1 is a view schematically illustrating an NR wireless communication system in accordance with embodiments of the present disclosure.FIG. 2 is a view schematically illustrating a frame structure in an NR system in accordance with embodiments of the present disclosure.FIG. 3 is a view for explaining resource grids supported by a radio access technology in accordance with embodiments of the present disclosure.FIG. 4 is a view for explaining bandwidth parts supported by a radio access technology in accordance with embodiments of the present disclosure.FIG. 5 is a view illustrating an example of a synchronization signal block in a radio access technology in accordance with embodiments of the present disclosure.FIG. 6 is a signal diagram for explaining a random access procedure in a radio access technology in accordance with embodiments of the present disclosure.FIG. 7 is a view for explaining CORESET.FIG.