Method and apparatus in node used for wireless communication

A wireless communication and wireless signal technology, applied in wireless communication, signaling distribution, sustainable communication technology, etc., can solve the problems of uncertain Cat4LBT duration, improve scheduling flexibility and system performance, increase transmission opportunities, and improve The effect of transmission opportunities

Active Publication Date: 2021-10-22
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the duration of Cat 4LBT is indeterminate

Method used

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  • Method and apparatus in node used for wireless communication
  • Method and apparatus in node used for wireless communication
  • Method and apparatus in node used for wireless communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Embodiment 1 illustrates the processing flowchart of the first node of an embodiment of the present application, as shown in the attached figure 1 shown. in the attached figure 1 In , each box represents a step. In particular, the order of the steps in the blocks does not represent a specific chronological relationship between the various steps. In Embodiment 1, the first node in this application receives the first signaling and the second signaling in step 101, performs the first channel sensing operation on the first sub-band in step 102, and performs the first channel sensing operation in step 103 on Sending the first wireless signal in the first time-frequency resource group of the first sub-frequency band, or giving up sending the first wireless signal in the first time-frequency resource group of the first sub-frequency band. In this embodiment, the first signaling is used to determine a first reference signal resource group, and the first signaling is non-unic...

Embodiment 2

[0316] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as attached figure 2 shown.

[0317] attached figure 2 A diagram illustrating a network architecture 200 of 5G NR, LTE (Long-Term Evolution, long-term evolution) and LTE-A (Long-Term Evolution Advanced, enhanced long-term evolution) systems. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System, 5G System) / EPS (Evolved Packet System, Evolved Packet System) 200 or some other suitable terminology. 5GS / EPS 200 may include one or more UE (User Equipment, user equipment) 201, NG-RAN (next generation radio access network) 202, 5GC (5G Core Network, 5G core network) / EPC (Evolved PacketCore, evolution Packet Core) 210, HSS (Home Subscriber Server, Home Subscriber Server) / UDM (Unified Data Management, Unified Data Management) 220 and Internet Service 230. 5GS / EPS can be interconnected with other access networks, but not shown for simplicity T...

Embodiment 3

[0335] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached image 3 shown. image 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, image 3Three layers are used to show the first node (RSU in UE or V2X, vehicle equipment or vehicle communication module) and the second node (gNB, RSU in UE or V2X, vehicle equipment or vehicle communication module), or two Radio protocol architecture of the control plane 300 between UEs: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to herein as PHY 301 . Layer 2 (L2 layer) 305 is above PHY 301, through which PHY 301 is responsible for the link between the first node and the second node and the two UEs...

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Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. The method comprises the steps that: the first node receives the first signaling and the second signaling; a first channel sensing operation is performed on the first sub-band; and a first wireless signal is sent in the first time-frequency resource group of the first sub-band, or it is abandoned to send the first wireless signal in the first time-frequency resource group of the first sub-band, wherein the first signaling is used for determining a first reference signal resource group, and the first signaling is non-unicast; the second signaling indicates a second reference signal resource group, when the first time-frequency resource group belongs to a first time window in the time domain, the first reference signal resource group and the second reference signal resource group are jointly used for determining the type of the first channel sensing operation from a first candidate type set. Through the method provided by the invention, the type of the channel sensing operation can be determined according to the spatial parameters of the wireless signal, thereby facilitating increasing the transmission opportunity and reducing the overhead.

Description

technical field [0001] The present application relates to a transmission method and device in a wireless communication system, in particular to a transmission scheme and device related to unlicensed spectrum in wireless communication. Background technique [0002] The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the new air interface technology (NR, New Radio) (or Fifth Generation, 5G) to conduct research, passed the WI (Work Item, work item) of NR at the 3GPP RAN#75 plenary meeting, and started to standardize NR. [0003] A key technology of NR is to support beam-based signal transmission, and its main application scenario is to enhance the coverage of NR devices working in millimeter wave frequency bands (such as frequency bands ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/12
CPCH04L5/0053H04W72/046Y02D30/70
Inventor 张晓博
Owner SHANGHAI LANGBO COMM TECH CO LTD
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