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A method and system for detecting an idle channel in a wireless communication system

A technology of idle channel detection and wireless communication system, applied in wireless communication, transmission system, transmission monitoring and other directions

Active Publication Date: 2020-05-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides an idle channel detection method and system used in a wireless communication system to solve the technical problem of how to improve the data transmission probability of a sending station

Method used

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  • A method and system for detecting an idle channel in a wireless communication system
  • A method and system for detecting an idle channel in a wireless communication system
  • A method and system for detecting an idle channel in a wireless communication system

Examples

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application example 1

[0102] Application Example 1: The transmitting station transmits beamforming data at a fixed power.

[0103] The sending station performs channel measurement on the channel required to transmit data by beamforming, and determines whether the channel is in an idle state. The conditions for determining that the channel is in an idle state are:

[0104] 1) If it is detected that the signal strength opposite to the transmission direction of the data to be sent is less than or equal to the threshold A1;

[0105] 2) If it is detected that the signal strength in the same transmission direction as the data to be sent is less than or equal to the threshold A2;

[0106] When the above-mentioned conditions 1) and 2) are satisfied at the same time, it can be determined that the channel is in an idle state, wherein the threshold A1 and the threshold A2 are set according to the transmission bandwidth; the above-mentioned threshold A1 and the threshold A2 can not only be dynamically adjusted...

application example 2

[0108] Application Example 2: The transmitting station transmits beamforming data at variable power.

[0109] The sending station performs channel measurement on the channel required to transmit data by beamforming, and determines whether the channel is in an idle state. The conditions for determining that the channel is in an idle state are:

[0110] 1) If it is detected that the signal strength opposite to the transmission direction of the data to be sent is less than or equal to the threshold A1;

[0111] 2) If it is detected that the signal strength in the same transmission direction as the data to be sent is less than or equal to the threshold A2;

[0112] 3) Calculate the transmit power of the beamforming data that satisfies the set modulation and coding rate, if the transmit power is the transmit power supported by this sending site;

[0113] The calculation of the transmit power of the beamforming data that satisfies the set modulation and coding rate includes:

[01...

application example 3

[0123] Application Example 3: The transmitting station transmits beamforming data to multiple receiving stations at a fixed power.

[0124] The sending station performs channel measurement on the channel required to transmit data by beamforming, and determines whether the channel is in an idle state. The conditions for determining that the channel is in an idle state are:

[0125] 1) If it is detected that the signal strength opposite to the transmission direction of the data to be sent is less than or equal to the threshold A1;

[0126] 2) If it is detected that the signal strength in the same transmission direction as the data to be sent is less than or equal to the threshold A2;

[0127] When the above-mentioned conditions 1) and 2) are satisfied at the same time, it can be determined that the channel is in an idle state, wherein the threshold A1 and the threshold A2 are set according to the transmission bandwidth; the above-mentioned threshold A1 and the threshold A2 can n...

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Abstract

A method and system for detecting an idle channel in a wireless communication system, the method includes: performing channel measurement on a channel required to transmit data by beamforming, and determining a channel in an idle state. The system includes: a channel measurement module, which is used to perform channel measurement on the channel required to transmit data by beamforming; an idle channel determination module, which is used to determine the channel in an idle state according to the channel measurement result. The invention can improve the data sending probability of the sending station.

Description

technical field [0001] The invention relates to the field of channel detection, in particular to a method and system for detecting an idle channel in a wireless communication system. Background technique [0002] At present, in the wireless network field, the wireless local area network (WLAN) develops rapidly, the demand for WLAN coverage is increasing day by day, the application of WLAN is more extensive, and the deployment density of WLAN is also increasing rapidly. [0003] IEEE 802.11 technology defines a basic service set (basic service set, BSS for short) composed of an access point (access point, AP) and multiple stations (Station, STA for short) associated with the AP. The station uses the carrier sense multiple access mechanism CSMA / CA (CSMA with Collision Avoidance) with collision avoidance to make multiple stations share the wireless channel. The working principle of CSMA / CA is: the sending end first detects whether the channel is idle, and if it detects that th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/08H04B17/309H04W72/54
CPCH04B17/26H04B17/309H04B17/318H04B17/00H04W72/54H04W16/02H04W24/08H04W24/10H04W28/18H04W72/02
Inventor 孙波吕开颖张力方永刚田开波
Owner ZTE CORP
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