Unlock instant, AI-driven research and patent intelligence for your innovation.

Communication method and device between nodes and terminals in a wireless local area network

A wireless local area network and terminal technology, applied in wireless communication, network topology, power management, etc., can solve problems such as AP node exposure

Active Publication Date: 2016-12-28
RUIJIE NETWORKS CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Embodiments of the present invention provide a communication method and device between nodes and terminals in a wireless local area network, which are used to solve the problem of exposure of a large number of AP nodes caused by the CSMA / CA mechanism

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Communication method and device between nodes and terminals in a wireless local area network
  • Communication method and device between nodes and terminals in a wireless local area network
  • Communication method and device between nodes and terminals in a wireless local area network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Such as figure 1 As shown, it is a schematic flowchart of a communication method between a node and a terminal in a wireless local area network according to Embodiment 1 of the present invention. The methods include:

[0062] Step 101: Before the first access point AP communicates with its associated terminals, it receives signal transmission state information sent by multiple second APs.

[0063] In step 101, the same-channel channel access point AP (for example: the first access point AP or the second access point AP) in the network sends a Beacon beacon by broadcasting, wherein the Beacon beacon Carries signal transmission status information.

[0064] That is, a signal bit is added to the existing Beacon, so that the Beacon not only contains the device ID and manufacturer information, but also contains the signal transmission status information of the device (for example: the transmit power value of a second AP, the The signal strength value of the signal transmit...

Embodiment 2

[0103] Such as figure 2 As shown, it is a schematic flowchart of a communication method between a node and a terminal in a wireless local area network according to Embodiment 2 of the present invention. Embodiment 2 of the present invention is a detailed description of each step in Embodiment 1 of the present invention. It is assumed that there is a same-frequency channel The access points AP1, AP2 and AP3, each AP is associated with one STA, that is, AP1 is associated with STA1, AP2 is associated with STA2, and AP3 is associated with STA3. The method includes:

[0104] Step 201: AP1 receives the signal transmission state information sent by AP2 and receives the signal transmission state information sent by AP3 before communicating with its associated STA1.

[0105] In step 201, AP2 and AP3 carry and send their own signal transmission status information through Beacon broadcasting.

[0106] For example: AP2 sends its own signal transmission status information through Beacon ...

Embodiment 3

[0141] Such as image 3 As shown, it is a schematic structural diagram of a communication device between a node and a terminal in a wireless local area network according to Embodiment 3 of the present invention. Embodiment 3 of the present invention is based on the same inventive concept as Embodiment 1 and Embodiment 2 of the present invention. invention. The device includes: a receiving module 11, a determining module 12 and a processing module 13, wherein:

[0142] The receiving module 11 is configured to receive signal transmission status information sent by multiple second APs before communicating with associated terminals;

[0143] A determining module 12, configured to determine a backoff threshold value of the first AP associated with the second AP corresponding to the signal transmission status information according to each received signal transmission status information;

[0144] The processing module 13 is configured to calculate the backoff power value of the fir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a communication method and equipment between nodes and terminals in a wireless local area network. The main content includes: before a first access point AP communicates with its associated terminals, it receives signals sent by a plurality of second APs transmission state information, according to each received signal transmission state information, determine a backoff threshold value of the first AP associated with the second AP corresponding to the signal transmission state information, and use the determined multiple backoff threshold values , calculate the back-off power value of the first AP in the WLAN, and initiate communication between terminals associated with the first AP after the power value of the channel transmission signal reaches the back-off power value, so that the first AP according to the received wireless The signal transmission status information of other nodes in the local area network determines its own backoff power value. The backoff power value has the characteristics of self-adaptation, which makes channel access more reasonable, reduces the probability of node exposure, and effectively improves network throughput.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a communication method and equipment between nodes and terminals in a wireless local area network. Background technique [0002] A wireless local area network (WLAN, Wireless Local Area Network) obtains medium access rights through a carrier sense multiple access / collision avoidance technology (CSMA / CA, Carrier Sense Multiple Access with Collision Avoidance). When a certain node AP1 (AccessPoint, access point) in the wireless local area network determines that there are other access points AP2 transmitting signals in the propagation medium, AP1 adopts a backoff mode until the propagation medium is determined to be free, and starts to perform signal transmission operations. [0003] When AP1 adopts backoff mode to delay signal transmission, AP1 is in the "exposed" state, and at this time AP1 belongs to the exposed node in the wireless local area network. [0004] With the po...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/18H04W84/12
Inventor 陈建祥
Owner RUIJIE NETWORKS CO LTD