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Methods and device for realizing listen-before-talk

A technology of channel and sending device, applied in the field of implementing pre-session listening, which can solve problems such as no LBT solution

Active Publication Date: 2016-05-25
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, there is no such LBT solution

Method used

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  • Methods and device for realizing listen-before-talk
  • Methods and device for realizing listen-before-talk
  • Methods and device for realizing listen-before-talk

Examples

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Embodiment Construction

[0022] The principles of the subject matter described herein will now be described with reference to a number of example embodiments. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and realize the subject matter described herein, but not to limit the scope of the subject matter described herein in any way.

[0023] It should be noted that the term "transmission device" used herein may include any type of transmission apparatus and transmission system. For example, the sending device may be a user equipment, a base station and any other device capable of performing data and / or signaling transmission.

[0024] The term "receiving device" as used herein may include any type of receiving apparatus and receiving system. For example, a receiving device may be a user equipment, a base station and any other device capable of receiving data and / or signaling.

[0025] The term "user equipment" (UE) as used here...

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PUM

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Abstract

Embodiments of the invention provide methods and a device for realizing listen-before-talk. One method according to the embodiments of the invention comprises the steps of determining whether a channel is clear in response to scheduling grant information from receiving equipment and transmitting data on the channel in response to determining that the channel is clear. The other method according to the embodiments of the invention comprises the steps of sending scheduling grant information to sending equipment and determining transmission of data from the sending equipment in response to the detection of an auxiliary detection reference signal from the sending equipment.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for realizing Listen-Before-Talk (LBT) in an LTE system based on Licensed-Assisted Access (LAA). Background technique [0002] As the demand for wireless broadband data gradually increases, more and more cellular network operators consider sharing channels as a supplementary means to increase their business capabilities. Unlike the exclusive use of channels, some channels can be shared by multiple radio access stations, an example of which is an unlicensed channel. [0003] Currently, systems using such shared channels are receiving more and more attention and research. In particular, an LTE system based on Licensed-Assisted Access (LAA) is being extensively discussed. [0004] For the LAA-LTE system, the key point of the design is to ensure that LAA can coexist with other operators and different access technologies on the basis of "equal" and "friendly" in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W74/08
Inventor 刘建国韩锋孟艳沈钢
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD