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A method and device for transmitting data in a base station

A technology for transmitting data and base stations, applied in the field of data transmission, can solve the problems of difficulty in simultaneous transmission and frequency reuse, and achieve the effect of improving resource utilization.

Active Publication Date: 2020-12-25
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for LBE-based LBT, since different cells have different interference environments, different CCA times, and different extended CCA observation periods, it is difficult to transmit simultaneously to different cells of the same operator, making it difficult to achieve frequency repetition. use

Method used

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  • A method and device for transmitting data in a base station
  • A method and device for transmitting data in a base station
  • A method and device for transmitting data in a base station

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Embodiment Construction

[0039]In order to achieve frequency reuse under the LBE-based LBT mechanism, when the cell detects that the channel is busy during CCA, it will continue to judge whether the channel is occupied by other cells under the same operator. If the channel is occupied by other cells under the same operator, the channel is considered to be available, and the channel is started to be used, so that multiple cells under the same operator can use the channel at the same time.

[0040] According to an application scenario of the present invention, in an LTE-LAA system, there is at least one base station, including a base station eNB1 and a base station eNB2. Both the base station eNB1 and the base station eNB2 adopt the LBE-based LBT mechanism, and both belong to the operator OP1.

[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0042] figure 2 A method for transmitting data in a base station eNB1 of an LTE-LAA syste...

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Abstract

The object of the present invention is to provide a method and equipment for realizing frequency reuse under the LBE-based LBT mechanism. The base station of the LTE-LAA system performs energy detection on a certain channel, and if the detected energy is lower than the first threshold, it is determined that the channel is idle; otherwise, it is judged whether there is interference within the same operator; if there is interference within the same operator, then determine that the channel is idle. If the channel is free, the base station transmits data on the channel and transmits interference within the same operator for as long as the channel is occupied by the base station. By adopting the present invention, different base stations under the jurisdiction of the same operator can use the same channel at the same time, which improves resource utilization and solves the problem that the LBE-based LBT mechanism in the prior art cannot realize frequency reuse.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission technology in LTE. Background technique [0002] Cellular technology and WiFi have become two of the most successful wireless technologies today. For years, they have complemented each other, and now they are converging. Traditional cellular technology, such as the LTE system, works on a licensed spectrum, while WiFi works on an unlicensed spectrum. [0003] With the rapid growth of wireless services, people's requirements for the capacity and frequency spectrum of wireless communication systems are also increasing. In this case, the licensed frequency band resources of the LTE system appear to be relatively insufficient. Therefore, 3GPP proposed the LTE-U (LTE in Unlicensed spectrum, referred to as LTE-U) technical framework, which extends the LTE system from the licensed frequency band to the unlicensed frequency band, and uses the carrier ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08H04W72/12H04L5/00H04W72/54
CPCH04L5/0062H04L5/0073H04W72/542H04W72/541
Inventor 孟艳刘建国韩锋陶涛武卓王钧谷俊嵘
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD