Search

JP-7856313-B2 - Method and apparatus for adjusting channel sensing threshold

JP7856313B2JP 7856313 B2JP7856313 B2JP 7856313B2JP-7856313-B2

Inventors

  • ホンボ・シ

Assignees

  • サムスン エレクトロニクス カンパニー リミテッド

Dates

Publication Date
20260511
Application Date
20210204
Priority Date
20210129

Claims (4)

  1. A terminal in a wireless communication system that senses a shared spectral channel based on multiple beams, Transmitter and receiver, The system includes at least one processor connected to the transceiver, The at least one processor is Identify system information indicating that a channel access process is being executed for transmission, Prior to the transmit burst , a Type 1 channel access procedure is performed based on multiple beams, where the channel sensing period for the Type 1 channel access procedure is random. Based on the channel access procedure of type 1, the transmit burst is initiated on the first channel sensed as idle . After performing the Type 1 channel access procedure, a Type 2 channel access procedure is performed within the transmit burst , and the channel sensing period for the Type 2 channel access procedure is a definitive period of a predetermined length . Based on the channel access procedure of type 2 described above, the transmit burst is configured to be performed on a second channel sensed as idle. A terminal characterized by the following features.
  2. A method performed by a terminal in a wireless communication system for sensing a shared spectral channel based on multiple beams, A process that identifies system information indicating that a channel access process is being executed for transmission, Prior to the transmit burst , a process is performed to execute a random sensing procedure of a type 1 channel access procedure based on multiple beams, wherein the channel sensing period for the type 1 channel access procedure is random. A process to initiate the transmit burst on a first channel sensed as idle based on the channel access procedure of type 1 , After performing the channel access procedure of type 1, a process of performing the channel access procedure of type 2 within the transmit burst , wherein the channel sensing period for the channel access procedure of type 2 is a definitive period of a predetermined length . The process includes , based on the channel access procedure of type 2, executing the transmit burst on a second channel sensed as idle. A method characterized by the following features.
  3. A base station in a wireless communication system that senses a shared spectral channel based on multiple beams, Transmitter and receiver, The system includes at least one processor connected to the transceiver, The at least one processor is The system provides system information indicating that a channel access process is performed for transmission , and before a transmit burst , a type 1 channel access procedure is performed based on multiple beams, where the channel sensing period for the type 1 channel access procedure is random. On the first channel sensed as idle based on the channel access procedure of type 1, the transmit burst is initiated . After performing the Type 1 channel access procedure, a Type 2 channel access procedure is performed within the transmit burst , and the channel sensing period for the Type 2 channel access procedure is a definitive period of a predetermined length . A base station configured to perform the transmit burst on a second channel sensed as idle , based on the channel access procedure of type 2 described above.
  4. A method by a base station in a wireless communication system for sensing a shared spectral channel based on multiple beams, A process that provides system information indicating that a channel access process is being executed for transmission, Prior to the transmit burst , a process is performed to execute a random sensing procedure of a type 1 channel access procedure based on multiple beams, wherein the channel sensing period for the type 1 channel access procedure is random. A process to initiate the transmit burst on a first channel sensed as idle , based on the channel access procedure of type 1 described above , After performing the channel access procedure of type 1, a process of performing the channel access procedure of type 2 within the transmit burst , wherein the channel sensing period for the channel access procedure of type 2 is a definitive period of a predetermined length . The process includes , based on the channel access procedure of type 2, executing the transmit burst on a second channel sensed as idle. A method characterized by the following features.

Description

This disclosure relates generally to wireless communication systems, and more specifically, to adjusting channel sensing thresholds in wireless communication systems. Fifth-generation (5G) or NR mobile communications are currently experiencing a surge in popularity due to widespread technological activity worldwide across various candidate technologies in industry and academia. These candidate enablers for 5G/NR mobile communications include beamforming gain, encompassing large-scale antenna technologies from legacy cellular frequency bands to high frequencies, and support for increased capacity, new waveforms (e.g., Radio Access Technology (RAT)) that flexibly accommodate diverse services/applications with differing requirements, and new multiplex access schemes that support large-scale connectivity. This figure shows an exemplary wireless network according to an embodiment of the present disclosure.This figure shows an exemplary gNB according to an embodiment of the present disclosure.This figure shows an exemplary UE according to the embodiments of the present disclosure.This figure shows an exemplary wireless transmission and reception path as described in this disclosure.This figure shows an exemplary wireless transmission and reception path as described in this disclosure.This figure shows an example of adjusting the channel sensing threshold based on the antenna configuration for channel sensing according to the embodiment of the disclosure.This figure shows an exemplary transmit burst related to multiple channel sensing thresholds according to an embodiment of the present disclosure.This figure shows a flowchart of a method for adjusting the channel sensing threshold according to an embodiment of the present disclosure.This figure shows a flowchart of a method for adjusting the channel sensing threshold according to an embodiment of the present disclosure.This figure shows a flowchart of a method for adjusting the channel sensing threshold according to an embodiment of the present disclosure.An exemplary channel access procedure according to embodiments of this disclosure is shown.This figure shows another exemplary channel access procedure according to embodiments of the present disclosure.This figure shows yet another exemplary channel access procedure according to embodiments of the present disclosure.This figure shows yet another exemplary channel access procedure according to embodiments of the present disclosure.This figure shows an exemplary discontinuity in a transmit burst for a channel access procedure according to an embodiment of the present disclosure.This figure shows other discontinuities in the transmit burst for the channel access procedure according to embodiments of the present disclosure.This figure shows a flowchart of a method for adjusting the channel sensing threshold according to an embodiment of the present disclosure.This figure shows a block diagram of the structure of the BS according to the embodiment of the disclosure.This figure shows a block diagram of the structure of the UE according to the embodiment of the disclosure. Figures 1 through 15 described below and the various embodiments used in this patent document to illustrate the principles of the disclosure are for illustrative purposes only and should not be understood as limiting the scope of the disclosure. Those skilled in the art will understand that the principles of the disclosure can be embodied in appropriately configured systems or devices. The following documents are incorporated in their entirety by reference: 3GPP TS 38.211 v15.7.0, “NR; Physical channels and modulation”; 3GPP TS 38.212 v15.7.0, “NR; Multiplexing and Channel coding”; 3GPP TS 38.213 v15.7.0, “NR; Physical Layer Procedures for Control”; 3GPP TS 38.214 v15.7.0, “NR; Physical Layer Procedures for Data”; and 3GPP TS 38.331 v15.7.0, “NR; Radio Resource Control (RRC) Protocol Specification” Figures 1 to 3 below illustrate various embodiments embodied in wireless communication systems and using orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiplexing access (OFDMA) communication techniques. The description of Figures 1 to 3 is not intended to indicate any physical or structural limitations on how different embodiments may be embodied. Different embodiments of this disclosure may also be embodied in any appropriately configured communication system. Figure 1 shows an exemplary wireless network according to an embodiment of the present disclosure. The embodiment of the wireless network shown in Figure 1 is for illustrative purposes only. Other embodiments of the wireless network 100 can be used without departing from the scope of the present disclosure. As shown in Figure 1, the wireless network includes gNB 101 (for example, a base station (BS), gNB 102, and gNB 103). gNB 101 communicates with gNB 102 and gNB 103. Furthermore, gNB 101 communicates with at least one network 130, such as the Internet, an In