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EP-4742716-A1 - METHOD AND APPARATUS FOR PERFORMING WIRELESS COMMUNICATION USING LOW-POWER WAKEUP RECEIVER

EP4742716A1EP 4742716 A1EP4742716 A1EP 4742716A1EP-4742716-A1

Abstract

Provided is a method of a UE for performing wireless communication using a low-power wakeup receiver (LP-WUR). The method may include configuring capability information related to reception of a low-power wakeup signal (LP-WUS) via a low-power wakeup receiver and transmitting the capability information to a base station via a transceiver.

Inventors

  • PARK, KI HYEON

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: configuring capability information related to reception of a low-power wakeup signal (LP-WUS) through the low-power wakeup receiver; and transmitting the capability information to a base station through a transceiver.
  2. The method of claim 1, wherein the capability information includes at least one of whether the low-power wakeup signal is supported, receivable frequency band information, required reception power information, applicable modulation scheme information, time gap information between the reception of the low-power wakeup signal and monitoring of a downlink control channel through the transceiver, and information on whether monitoring of the downlink control channel through the transceiver is possible in an on state of the low-power wakeup receiver.
  3. The method of claim 1, wherein the capability information is configured as an radio resource control (RRC) message.
  4. The method of claim 1, wherein the capability information is configured when a request for the capability information is received from the base station.
  5. The method of claim 1, wherein the capability information is configured based on configuration information supportable by the base station for the low-power wakeup signal.
  6. A method of a base station controlling an operation of a UE performing wireless communication using a low-power wakeup receiver (LP-WUR), the method comprising: receiving, from the UE, capability information required for reception of a low-power wakeup signal (LP-WUS) through the low-power wakeup receiver; and transmitting low-power wakeup signal configuration information to the UE based on the capability information.
  7. The method of claim 6, wherein the capability information includes at least one of whether the low-power wakeup signal is supported by the UE, receivable frequency band information, required reception power information, applicable modulation scheme information, time gap information between the reception of the low-power wakeup signal and monitoring of a downlink control channel through a transceiver of the UE, and information on whether monitoring of the downlink control channel through the transceiver is possible in an on state of the low-power wakeup receiver.
  8. The method of claim 6, wherein the capability information is configured as an radio resource control (RRC) message.
  9. The method of claim 6, wherein the capability information is configured when a request for the capability information is transmitted to the UE.
  10. The method of claim 6, wherein the capability information is configured based on configuration information supportable by the base station for the low-power wakeup signal.
  11. A 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 operations performed by the controller comprises: configuring capability information related to reception of a low-power wakeup signal (LP-WUS) through the low-power wakeup receiver and transmitting the capability information to a base station through the transceiver.
  12. The UE of claim 11, wherein the capability information includes at least one of whether the low-power wakeup signal is supported, receivable frequency band information, required reception power information, applicable modulation scheme information, time gap information between the reception of the low-power wakeup signal and monitoring of a downlink control channel through the transceiver, and information on whether monitoring of the downlink control channel through the transceiver is possible in an on state of the low-power wakeup receiver.
  13. The UE of claim 11, wherein the capability information is configured as an radio resource control (RRC) message.
  14. The UE of claim 11, wherein the capability information is configured when a request for the capability information is received from the base station.
  15. The UE of claim 11, wherein the capability information is configured based on configuration information supportable by the base station for 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 in the disclosure). 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 wakeup 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 when performing a wakeup 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. Technical Solution In one aspect, the present disclosure may provide a method for a user equipment (UE) performing wireless communication using a low-power wakeup receiver (LP-WUR). The method may include: configuring capability information related to reception of a low-power wakeup signal (LP-WUS) via a low-power wakeup receiver; and transmitting the capability information to a base station via a transceiver. 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 receiving, from the UE, capability information required for reception of a low-power wakeup signal (LP-WUS) through the low-power wakeup receiver and transmitting low-power wakeup signal configuration information to the UE based on the capability information. In yet another aspect, the present disclosure may provide a UE performing wireless communication using a low-power wakeup receiver (LR). 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 configures capability information related to reception of a low-power wakeup signal (LP-WUS) through the low-power wakeup receiver and transmits the capability information to a base station through the transceiver. 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. The base station may include a transmitter, a receiver, and a controller controlling operations of the transmitter and the receiver, wherein the controller receives, from the UE, capability information required for reception of a low-power wakeup signal (LP-WUS) through the low-power wakeup receiver and transmits low-power wakeup signal configuration information to the UE based on the capability information. Advantageous Effects According to the present embodiments, a wakeup operation may be performed with efficient power consumption by using a low-power wakeup receiver. According to the present embodiments, a UE may support a transmission/reception environment tailored to various characteristics of a receiver 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. 8 is a flowchart illustrating a method of a UE for performing wireless communication using a low-power wakeup receiver according to an embodiment.FIG. 9 is a flowchart illustrating a method of a base station for controlling a