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US-12628175-B2 - Communication method and electronic equipment

US12628175B2US 12628175 B2US12628175 B2US 12628175B2US-12628175-B2

Abstract

The disclosure relates to a 5 th generation (5G) or 6 th generation (6G) communication system for supporting a higher data transmission rate. A communication method and an electronic equipment are provided. The method includes receiving configuration information of periodical physical downlink control channel (PDCCH) monitoring, wherein within each cycle of the configuration comprises a first time window and/or a second time window, and according to the configuration information, performing PDCCH monitoring on type 3 common search space (CSS) and UE-specific search space (USS) in the first time window, and/or, skipping PDCCH monitoring on type 3 CSS and USS in the second time window. By the embodiments of the disclosure, the user equipment (UE) periodically performs PDCCH monitoring and/or skips PDCCH monitoring to achieve the objective of power-saving, and it is avoided that UE cannot timely receive scheduling information to thereby cause data transmission delay.

Inventors

  • Min Wu
  • Sa ZHANG
  • Feifei Sun

Assignees

  • SAMSUNG ELECTRONICS CO., LTD.

Dates

Publication Date
20260512
Application Date
20230912
Priority Date
20220928

Claims (20)

  1. 1 . A method performed by a user equipment (UE) in a communication system, the method comprising: receiving, via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) monitoring, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH monitoring is performed and the second time window corresponds to a time window in which the periodical PDCCH monitoring is skipped; performing the periodical PDCCH monitoring on type 3 common search space (CSS) and UE-specific search space (USS) in the first time window; skipping the periodical PDCCH monitoring on type 3 CSS and USS in the second time window; receiving downlink control information (DCI) for deactivating the configuration information; after receiving the DCI: stopping the performing of the periodical PDCCH monitoring in the first time window; and stopping the skipping of the periodical PDCCH monitoring in the second time window.
  2. 2 . The method of claim 1 , wherein the configuration information includes at least one of: a period; a length of the first time window; a length of the second time window; a starting position of the first time window; or a starting position of the second time window.
  3. 3 . The method of claim 1 , wherein the receiving of the configuration information of periodical PDCCH monitoring includes at least one of: receiving UE-specific RRC signaling for indicating the configuration information; or receiving UE-specific RRC signaling for indicating the configuration information, and receiving DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been received.
  4. 4 . The method of claim 1 , wherein the receiving of the configuration information of periodical PDCCH monitoring includes receiving at least two pieces of configuration information of periodical PDCCH monitoring, and wherein at least one of the performing of the periodical PDCCH monitoring on type 3 CSS and USS or the skipping of the periodical PDCCH monitoring on type 3 CSS and USS is based on the at least two pieces of configuration information.
  5. 5 . The method of claim 4 , wherein at least one of the following is satisfied: in case that at least one configuration of at least two configurations is in the first time window, the periodical PDCCH monitoring is performed; or in case that the at least two configurations are both in the second time window, the periodical PDCCH monitoring is skipped.
  6. 6 . The method of claim 4 , wherein the at least two pieces of configuration information are respectively employed for one of: different data services; different service cells, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cells; different service cell groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cell groups; different search spaces, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search spaces; different search space groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search space groups; or at least one of type 1 CSS, type 2 CSS, type 3 CSS, and USS.
  7. 7 . A user equipment (UE) in a communication system, the UE comprising: a transceiver; and a processor coupled with the transceiver and configured to: receive, via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) monitoring, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH monitoring is performed and the second time window corresponds to a time window in which the periodical PDCCH monitoring is skipped; perform the periodical PDCCH monitoring on type 3 common search space (CSS) and UE-specific search space (USS) in the first time window; skip the periodical PDCCH monitoring on type 3 CSS and USS in the second time window; receive downlink control information (DCI) for deactivating the configuration information; after receiving the DCI: stop the performing of the periodical PDCCH monitoring in the first time window; and stop the skipping of the periodical PDCCH monitoring in the second time window.
  8. 8 . The UE of claim 7 , wherein the configuration information includes at least one of: a period; a length of the first time window; a length of the second time window; a starting position of the first time window; or a starting position of the second time window.
  9. 9 . The UE of claim 7 , wherein the processor is further configured to perform at least one of: receiving UE-specific RRC signaling for indicating the configuration information; or receiving UE-specific RRC signaling for indicating the configuration information, and receiving DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been received.
  10. 10 . The UE of claim 7 , wherein the processor is further configured to perform receiving at least two pieces of configuration information of periodical PDCCH monitoring, and wherein at least one of the performing of the periodical PDCCH monitoring on type 3 CSS and USS or the skipping of the periodical PDCCH monitoring on type 3 CSS and USS is based on the at least two pieces of configuration information.
  11. 11 . The UE of claim 10 , wherein at least one of the following is satisfied: in case that at least one configuration of at least two configurations is in the first time window, the periodical PDCCH monitoring is performed; or in case that the at least two configurations are both in the second time window, the periodical PDCCH monitoring is skipped.
  12. 12 . The UE of claim 10 , wherein the at least two pieces of configuration information are respectively employed for one of: different data services; different service cells, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cells; different service cell groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding service cell groups; different search spaces, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search spaces; different search space groups, wherein the at least two pieces of configuration information respectively include index numbers of corresponding search space groups; or at least one of type 1 CSS, type 2 CSS, type 3 CSS, and USS.
  13. 13 . A method performed by a base station in a communication system, the method comprising: transmitting, to user equipment (UE) via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) transmission, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH transmission is performed and the second time window corresponds to a time window in which the periodical PDCCH transmission is skipped; and performing the periodical PDCCH transmission to the UE on type 3 common search space (CSS) and UE-specific search space (USS) of the UE in the first time window; skipping the periodical PDCCH transmission to the UE on type 3 CSS and USS in the second time window transmitting, to the UE, downlink control information (DCI) for deactivating the configuration information; after transmitting the DCI: stopping performing of the periodical PDCCH transmission in the first time window; and stopping the skipping of the periodical PDCCH transmission in the second time window.
  14. 14 . The method of claim 13 , wherein the configuration information includes at least one of: a period; a length of the first time window; a length of the second time window; a starting position of the first time window; or a starting position of the second time window.
  15. 15 . The method of claim 13 , wherein the transmitting of the configuration information of periodical PDCCH monitoring includes at least one of: transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information; or transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information, and transmitting, to the UE, DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been transmitted.
  16. 16 . The method of claim 13 , wherein the transmitting of the configuration information of periodical PDCCH monitoring includes transmitting at least two pieces of configuration information of periodical PDCCH monitoring, and wherein at least one of the performing of the periodical PDCCH transmission on type 3 CSS and USS or the skipping of the periodical PDCCH transmission on type 3 CSS and USS is based on the at least two pieces of configuration information.
  17. 17 . A base station in a communication system, the base station comprising: a transceiver; and a processor coupled with the transceiver and configured to: transmit, to user equipment (UE) via radio resource control (RRC) signaling, configuration information of periodical physical downlink control channel (PDCCH) transmission, wherein the configuration information comprises information on a first time window and information on a second time window, and wherein the first time window corresponds a time window in which the periodical PDCCH transmission is performed and the second time window corresponds to a time window in which the periodical PDCCH transmission is skipped; and perform the periodical PDCCH transmission to the UE on type 3 common search space (CSS) and UE-specific search space (USS) of the UE in the first time window; skip the periodical PDCCH transmission to the UE on type 3 CSS and USS in the second time window transmit, to the UE, downlink control information (DCI) for deactivating the configuration information; after transmitting the DCI: stop performing of the periodical PDCCH transmission in the first time window; and stop the skipping of the periodical PDCCH transmission in the second time window.
  18. 18 . The base station of claim 17 , wherein the configuration information includes at least one of: a period; a length of the first time window; a length of the second time window; a starting position of the first time window; or a starting position of the second time window.
  19. 19 . The base station of claim 17 , wherein the processor is further configured to perform at least one of: transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information; or transmitting, to the UE, UE-specific RRC signaling for indicating the configuration information, and transmitting, to the UE, DCI for activating the configuration information, wherein a starting position of the first time window or the second time window is a position of a first preset interval after a corresponding DCI has been transmitted.
  20. 20 . The base station of claim 17 , wherein the processor is further configured to transmit at least two pieces of configuration information of periodical PDCCH monitoring, and wherein at least one of the performing of the periodical PDCCH transmission on type 3 CSS and USS or the skipping of the periodical PDCCH transmission on type 3 CSS and USS is based on the at least two pieces of configuration information.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S) This application is based on and claims priority under 35 U.S.C. § 119(a) of a Chinese patent application number 202211194412.4, filed on Sep. 28, 2022, in the China National Intellectual Property Administration, the disclosure of which is incorporated by reference herein in its entirety. BACKGROUND 1. Field The disclosure relates to a technical field of radio communication. More particularly, the disclosure relates to a communication method and an electronic equipment. 2. Description of Related Art 5th 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 GHz” bands, such as 3.5 GHz, but also in “Above 6 GHz” bands referred to as mmWave including 28 GHz and 39 GHz. In addition, it has been considered to implement 6th generation (6G) mobile communication technologies (referred to as Beyond 5G systems) in terahertz bands (for example, 95 GHz to 3 THz 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, 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 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 (MEG) 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 provid