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A downlink lbt method, device, medium, and base station

A downlink data, unified technology, applied in the field of communication

Active Publication Date: 2021-06-25
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no LBT technology in NR scenarios

Method used

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  • A downlink lbt method, device, medium, and base station
  • A downlink lbt method, device, medium, and base station
  • A downlink lbt method, device, medium, and base station

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Embodiment Construction

[0062] As mentioned above, NR-based unlicensed spectrum communication technology has become a new technology hotspot. Based on the new characteristics of NR, LBT technology needs to be changed accordingly. However, there is currently no downlink LBT technology based on beam direction in NR scenarios.

[0063] In the NR scenario, data transmission can be performed based on multiple beams, and the beams can be distinguished by the type and serial number of the RS carrying the beams. Different beams have different beam directions. The beam direction in the embodiment of the present invention can be carried by a channel state information reference signal (CSI Reference Signal, CSI-RS), a channel sounding signal (Sounding Reference Signal, SRS), a tracking reference signal (Tracking Reference Signal, TRS), a synchronization signal It is distinguished from the spatial configuration (spatial configuration) of any one or more of broadcast channel block (SS / PBCH block, SSB) and disco...

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PUM

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Abstract

The embodiment of the present invention discloses a downlink LBT method, device, medium, and base station, wherein the method includes: determining the direction of one or more beams to be monitored, and the beams to be monitored are selected from unlicensed spectrum beams within the range; monitoring the one or more beams to be monitored to determine a beam suitable for data transmission. The technical solution in the practice of the present invention can perform downlink LBT in the NR scenario.

Description

technical field [0001] The present invention relates to the communication field, in particular to a downlink LBT method, device, medium, and base station. Background technique [0002] Currently, the 3rd Generation Partnership Project (The 3rd Generation Partnership Project, 3GPP) will introduce a new wireless technology (New Radio access technology, NR), including at least the fifth generation mobile communication technology (5G). [0003] In wireless technologies, in order to improve the quality of communication services, unlicensed spectrum may be used for communication, that is, Licensed Assisted Access (LAA) technology. The Listen Before Talk (LBT) technology is an important part of the unlicensed spectrum communication technology. So far, the LAA based on the LTE protocol has many new features than the original LAA. [0004] With the evolution of communication technology, NR-based unlicensed spectrum communication technology has become a new technology hotspot. Base...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
CPCH04B7/0408H04B7/0626H04B7/0695H04B7/088
Inventor 王化磊
Owner SPREADTRUM COMM (SHANGHAI) CO LTD