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Channel bonding and allocation method for ultra-high-speed wireless local area network based on channel quality

A technology of wireless local area network and channel quality, which is applied in the field of ultra-high-speed wireless local area network channel binding and allocation based on channel quality, can solve problems such as not considering QoS, wasting wireless resources, and failing to guarantee the service quality of high-priority services, so as to improve Effects of throughput, good channel resources, and QoS guarantee

Inactive Publication Date: 2017-07-07
SHANGHAI RES CENT FOR WIRELESS COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, these channel bonding technologies focus on improving throughput without considering QoS. It is possible to use the same channel bonding technology for different services and allocate the entire channel as a single network resource to a certain user or a certain type of service. When the bandwidth is insufficient, the service quality of high-priority services cannot be guaranteed, and when the bandwidth is sufficient, wireless resources may be wasted

Method used

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  • Channel bonding and allocation method for ultra-high-speed wireless local area network based on channel quality
  • Channel bonding and allocation method for ultra-high-speed wireless local area network based on channel quality
  • Channel bonding and allocation method for ultra-high-speed wireless local area network based on channel quality

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Embodiment 1

[0035] This embodiment provides a channel quality-based ultra-high-speed wireless local area network channel binding and allocation method, which is applied to an infrastructure wireless local area network (WLAN) with APs. The specific application scenarios are as follows: figure 1 As shown, each STA has the ability to support channel bonding and multiplex transmission.

[0036] figure 1 In , BSS represents a basic service set, and BSS is composed of a wireless access point AP and several wireless workstations STA connected to the AP, and the communication between STAs is controlled and coordinated by the AP. The basic function of the AP access point device: responsible for wireless communication management, such as: assigning the right to use wireless channels to wireless nodes; realizing the conversion between wireless communication and wired communication; playing a role similar to wired LAN bridges and routers.

[0037] In a WLAN with infrastructure, the AP acts as a CAS ...

Embodiment 2

[0055] The difference between this embodiment and Embodiment 1 is that in step 5) of the channel quality-based ultra-high-speed wireless local area network channel binding and allocation method, only 3 of the four access categories have data (that is, only 3 A kind of AC send queue to send data), such as Figure 4 As shown, according to the channel quality weight priority from high to low, the first priority access category (AC) is allocated the first 1 / 2 of the total number of idle channels, and the second priority access category (AC) allocates the remaining channels. The first 1 / 2 number of channels of the idle channel, the last remaining idle channel is given to the third priority access category (AC) in sequence, and when the number of channels is small, the access category (AC) with high priority is given priority to transmission data in . Therefore, corresponding to different access categories (AC), the range of the number of idle channels that can be allocated is show...

Embodiment 3

[0059] The difference between this embodiment and Embodiment 1 is that in step 5) of the channel quality-based ultra-high-speed wireless local area network channel binding and allocation method, only 2 of the four access categories have data (that is, only 2 A kind of AC send queue to send data), such as Figure 5 As shown, according to the channel quality weight priority from high to low, the first priority access category (AC) is allocated the first 1 / 2 number of channels in the total idle channels, and the remaining idle channels are assigned to the second priority access category ( AC), when the number of channels is small, the data in the access category (AC) with high priority is transmitted preferentially. Therefore, corresponding to different access categories (AC), the range of the number of idle channels that can be allocated is shown in Table 4.

[0060] Table 4: The range of the number of channels where data can be obtained for the two access categories

[0061] ...

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Abstract

The present invention provides a channel binding and allocation method for an ultra-high-speed wireless local area network based on channel quality, including: step 1, the AP monitors whether the communication channel of the STA under its own management is idle, and if it is an idle channel, it starts to carry out the process on the idle channel Control, obtain the number of idle channels, signal-to-noise ratio, and signal-to-interference ratio; step 2, AP calculates the channel quality weight value according to the signal-to-noise ratio and signal-to-interference ratio, and determines the priority of the idle channel according to the size of the channel quality weight value ; Step three, the AP polls the STAs under its management to obtain the service types existing in the STA's local priority queue; step four, the AP prioritizes the services existing in the STA; step five, the AP prioritizes the services according to the service Class and channel priority assign idle channels to STA adaptively through dichotomy. The invention not only balances the business volume in the network, but also provides more and better channel resources for high-priority business, guarantees the QoS of the business, and improves the throughput of the system.

Description

technical field [0001] The invention belongs to the technical field of wireless local area network communication, and relates to a channel binding and allocation method, in particular to a channel quality-based ultra-high-speed wireless local area network channel binding and allocation method. Background technique [0002] Wireless Local Area Network (WLAN) is the product of the combination of computer network and wireless communication technology. As a typical form of wireless IP access, wireless local area network has the advantages of mobile computing, flexible and fast network architecture, low maintenance cost and good scalability. These advantages make WLAN widely used and accelerate the development of wireless local area network. development, and will occupy an important position in the next generation of mobile communication systems. At present, IEEE802.11 has become the mainstream standard of wireless local area network. In 2009, the IEEE802.11-2007 standard was s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/24H04W74/08
Inventor 徐丽娟单联海胡宏林
Owner SHANGHAI RES CENT FOR WIRELESS COMM
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