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LAA-based wireless transmission access method and system

A wireless transmission and access method technology, applied in wireless communication, electrical components, etc., can solve the problems of unlicensed spectrum access, the inability to access information sources from different manufacturers, and the limitation of the application range of LBT technology, etc., to improve The effect of networking flexibility, enhancing instantaneous transmission traffic, and reducing equipment replacement costs

Pending Publication Date: 2021-05-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the LBT technology only exists in the access processing of the source from the manufacturer. For the signal feed of the other manufacturer, it can only perform signal amplification processing, and cannot realize the access on the unlicensed spectrum. Manufacturer), can only improve the business transmission from the manufacturer, enhance the instantaneous transmission traffic, and cannot realize the access to the unlicensed spectrum for the signal source of the different manufacturer, which limits the application range of the LBT technology and cannot be compatible with the signal of the different manufacturer. Poor flexibility

Method used

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  • LAA-based wireless transmission access method and system
  • LAA-based wireless transmission access method and system
  • LAA-based wireless transmission access method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051]Such asfigure 1 Distancefigure 1 A flowchart of a LAA-based wireless transmission access method is provided for this embodiment; the method is applied to the baseband processing unit BBU, which includes:

[0052]Step A100, receive the start indication of the LBT, get the launch indicating the corresponding signal system.

[0053]In the present embodiment, the launch of the LBT indicates that the corresponding signal system is a second signal system or a second signal system of the vendor, the second signal system, and the second signal system; due to different manufacturers through different physical ports. Access to the baseband processing unit, so the signal system of different vendors can be obtained according to the port configuration table of the baseband processing unit.

[0054]In the present embodiment, for the signal baseband processing, after receiving the feed signal, it includes determining the source source corresponding to the signal system, if it is a vendor signal, the ...

Embodiment 2

[0121]Such asFigure 5 DistanceFigure 5 A flow chart of a LAA-based wireless transmission access method is provided for this embodiment; the method is applied to the bridging unit, the method comprising:

[0122]Step B100, receive the start indication message of the LBT issued by the BBU, and is distributed step by step to each RRU; the start indication message includes the LBT start indicating the corresponding signal system; the LBT start indicates the corresponding signal system for the manufacturer. A signal formulation, a second signal system or a first signal system and a second signal system.

[0123]Step B200, the free state information of the unauthorized spectrum reported by the RRU or the next level bridge unit, and eventually reported to the BBU; where the non-authorized spectrum of the idle state is the RRU that receives the start indication message, pair The non-authorized spectrum in the cell is used in accordance with the signal system in the launch indication message, the ...

Embodiment 3

[0136]Such asFigure 7 DistanceFigure 7 For this embodiment, a flow chart of a LAA-based wireless transmission access method is provided; the method is applied RRU, which includes:

[0137]Step C100, the start instruction message of the LBT is received, which includes the LBT start indicating the corresponding signal system; wherein the launch indicating the launch of the LBT indicates the first signal system of the vendor, the second signal system of the vendor. Or the first signal system and the second signal system.

[0138]Step C200, perform spectrum scanning (eg, dynamic spectrum scanning DFS) in accordance with the launch instruction message (the LBT start indication indication corresponding to the signal system), and obtains the non-authorized spectrum of the signal system (including all the RRU corresponding cell coverage. The idle state information of the non-authorized spectrum is reported, and the unauthorized spectrum is reported directly or through the bridging unit to the BBU...

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Abstract

The invention discloses a wireless transmission access method and system based on LAA, and the method comprises the steps: a BBU obtains a signal system corresponding to an LBT starting instruction, and issues a starting instruction message of the corresponding LBT; the bridging unit distributes the starting indication message to the RRU; the RRU performs frequency spectrum scanning according to a signal system in the starting indication message to obtain idle and busy state information of an unauthorized frequency spectrum of the signal system, and reports the idle and busy state information to the BBU through the bridging unit; the BBU determines a preemptive unlicensed spectrum of the signal system according to the idle / busy state information, and issues an occupation message; the bridging unit distributes the occupation message to the RRU; the RRU judges the signal source of the signal system in the occupied message; and if the manufacturer is a different manufacturer, a signal transmission channel is switched to a radio frequency processing channel in the different manufacturer, and transmission is performed by preempting an unlicensed spectrum. According to the invention, the access of information sources of different manufacturers on the unauthorized spectrum is realized, the service transmission of the different manufacturers is improved, the instantaneous transmission flow is enhanced, and the application range and the equipment compatibility of the LBT technology are expanded.

Description

Technical field[0001]Embodiments of the present invention relate to but not limited to wireless communication, and more particularly to a wireless transmission access method, system, baseband processing unit, bridge unit, RRU, and computer readable storage based on LAA (Licensedassisted Access, Authorized Spectrum Auxiliary Access). medium.Background technique[0002]With the rapid development of wireless communications, the demand for spectrum resources is increasing, but spectrum resources, especially those with limited spectrum resources. In order to meet the growing demand for the rate, traffic, bandwidth, etc., solve the problem of current spectrum shortage in the limited conditions of spectrum resources, and the non-authorized spectrum enters the operator's sight, and the LAA technology can be used to communicate on the unauthorized spectrum. Listen before listen (Listen Before Talk, LBT) technology is an important part of unauthorized spectrum communication technology.[0003]How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/00H04W74/08
CPCH04W74/002H04W74/08H04W74/0808H04W74/0816H04W16/14
Inventor 刘祝垣张迪强刘凯王仰锋庞勇
Owner ZTE CORP
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