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Channel access method and device

A channel access method and current channel technology, applied in the field of channel access methods and devices, capable of solving problems such as resource collisions

Inactive Publication Date: 2016-11-23
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a channel access method and device to solve the resource collision problem caused when the base stations or terminals of multiple operators are fully synchronized

Method used

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Embodiment Construction

[0120] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0121] refer to Figure 4 As shown, in Embodiment 1 of the present invention, a channel access method based on the CCA mechanism is proposed to avoid collision between base stations or terminals of multiple operators. The specific process is as follows:

[0122] Step 400: The communication device determines the current CCA detection location.

[0123] Wherein, the communication device in step 400 is a base station or a terminal, and generally,...

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Abstract

The invention discloses a channel access method and device, and aims to solve the problem of resource collision caused by complete synchronization of base stations or terminals of a plurality of operators. The method comprises the following steps that: communication equipment determines a current CCA (Clear Channel Assessment) detection position; and the communication equipment performs CCA detection at the CCA detection position, and transmits a signal on a current channel when the current channel is determined to be clear in order to access the current channel. Through adoption of the channel access method and device, the communication equipment of the operators is effectively prevented from occupying the same time frequency resources in synchronization states, so that the situation of resource collision is reduced greatly, and signal interference among the communication equipment is effectively avoided.

Description

technical field [0001] The present invention relates to the wireless field, in particular to a channel access method and device. Background technique [0002] With the continuous growth of mobile data traffic, spectrum resources are becoming more and more tight, and only using licensed spectrum resources for network deployment and service transmission may not be able to meet the traffic demand. Therefore, Long Term Evolution (LTE) systems can be considered in Transmission is deployed on unlicensed spectrum resources (Unlicensed LTE, referred to as U-LTE or LTE-U) to improve user experience and expand coverage. There is no specific application system planned for the unlicensed spectrum, and it can be shared by multiple wireless communication systems such as Bluetooth and WiFi. Multiple systems use the shared unlicensed spectrum resources by preempting resources. Therefore, the coexistence between LTE-U deployed by different operators and wireless communication systems such a...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/08
Inventor 王加庆潘学明沈祖康徐伟杰
Owner CHINA ACAD OF TELECOMM TECH
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