Method for controlling wireless network access

A technology for access control and control nodes, applied in wireless communication, electrical components, etc., can solve problems such as collisions and inability to reflect different services for users with different priorities

Inactive Publication Date: 2012-04-11
ZHEJIANG YUMAI TECH
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Problems solved by technology

Carrier sense multipoint access/collision avoidance is a MAC protocol based on the contention mechanism, which can play its role to the greatest extent when the network condition is good, but in the case of network congestion, there will inevitably be a large number of access the collision
[0003] Since the backoff interval used by carrier sense multi-point access/collision avoidance i

Method used

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  • Method for controlling wireless network access
  • Method for controlling wireless network access
  • Method for controlling wireless network access

Examples

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Embodiment Construction

[0038] The wireless communication system of the present invention has a control node and multiple user nodes, and each user node has its own priority, which is pre-configured in the wireless communication system and divided into seven levels from high to low, ranging from 1 to 7 . In the system, the user nodes know the priority configured by themselves, and the control node knows the priority of each user node. When the priority configuration of the user node changes, the control node must be notified to know.

[0039]The user node can access the channel during the general access period and the dedicated access period corresponding to its own priority. In the universal access period, each user node accesses the channel through carrier sense multiple access / collision avoidance (CSMA / CA). Each dedicated access period has its corresponding priority, which can be configured through the system, and each dedicated access period corresponds to one or more priorities. When a dedicat...

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Abstract

The invention discloses a wireless communication system, which is provided with a control node and a plurality of user nodes, wherein each user node is provided with respective priority; the user nodes can access a channel in a universal access time period and special access time periods which correspond to the respective priority; in the universal access time period, each user node accesses the channel in a carrier sense multiple access / collision avoidance (CSMA/CA) mode; each special access time period has the corresponding priority; each special access time period can correspond to one or more priorities through system configuration; and when one special access time period corresponds to only one priority, only the user node which corresponds to the priority are allowed to access the channel in the current special access time period.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a wireless network access control method. Background technique [0002] Traditional wired networks usually adopt Carrier Sense Multipoint Access / Collision Detection (CSMA / CD) as the standard of the MAC layer. Carrier Sense Multiple Access / Collision Avoidance (CSMA / CA) is an improved MAC layer protocol proposed for the characteristics of WLAN. On the one hand, check whether the medium is idle through carrier sense; on the other hand, introduce random backoff interval waiting to minimize the probability of signal collision. Carrier sense multipoint access / collision avoidance is a MAC protocol based on the contention mechanism, which can play its role to the greatest extent when the network condition is good, but in the case of network congestion, there will inevitably be a large number of access collision. [0003] Since the backoff interval used by carrier sense mu...

Claims

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Application Information

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IPC IPC(8): H04W74/08
Inventor 刘秋明顾强邓迪旻
Owner ZHEJIANG YUMAI TECH
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