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Method for improving service quality of wireless network

A wireless network and quality of service technology, applied in the field of improving the quality of service in wireless networks, can solve problems such as inability to guarantee, and achieve the effect of low complexity

Inactive Publication Date: 2006-02-22
NEC CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This scheme will substantially improve the performance of the system, but cannot guarantee that all cases in which high-priority frames will not be discarded in favor of newer low-priority frames

Method used

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  • Method for improving service quality of wireless network
  • Method for improving service quality of wireless network

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Embodiment Construction

[0023] refer to figure 2 , separate the common PCM queue into two sub-queues according to the number of AC implementations. Specifically, the queue is separated into an AC_VO PSM subqueue in which high priority frames are stored, and an AC_BE PSM subqueue in which low priority frames are stored, either by logically dividing a single PSM queue, or by physically providing two queues to form these PSM queues. Additionally, multiple queues are provided for each priority.

[0024] Such as figure 2 As shown, first determine which priority the input data has. When it is a high-priority frame, it is buffered in the AC_VO PSM sub-queue, and when it is a low-priority frame, it is buffered in the AC_BE PSM sub-queue. When a PS (power saving) poll request is received from a mobile station, the corresponding frame leaves the corresponding PSM subqueue and is sent to the corresponding queue. For example, when an AC_VO PS Poll Request is received from a mobile station requesting AC_VO...

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Abstract

A method to improve the Quality of Service (QoS) in a wireless network, preferably in a WLAN according to the IEEE proposal 802.11e comprising an Access Point (AP) and at least one mobile station (STA) with different Access Categories (ACs) being defined for the transmission of frames depending on their priority, and in which a Power Save Mode (PSM), preferably according to IEEE standard 802.11, is used in the network is characterized in that the PSM queue is separated into several sub-queues at the Base Station.

Description

technical field [0001] The present invention relates to a method of improving the Quality of Service (QoS) in a wireless network, preferably a WLAN with an access point (AP) and at least one mobile station (STA) according to IEEE recommendation 802.11e. Different Access Classes (AC) are defined for the transmission of frames in which frames are sent according to their priority. A power save mode (PSM), preferably a power save state according to IEEE standard 802.11, is used in the network. Background technique [0002] Wireless Networking—Wireless Local Area Networks (WLANs) are a direct extension of wired LANs, where they became widely used due to the development of the IEEE 802.11 family of standards. A WLAN comprises an access point (AP) and usually several terminals (STAs), with data transmission between the AP and individual terminals being enabled via a radio link. Such networks are widely used in so-called hotspots and provide broadband Internet access, eg in office...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04W28/14H04W52/02H04W72/12H04W74/00H04W84/12H04W88/08
CPCH04W72/1247H04W52/0212H04W74/00Y02B60/50H04W88/08H04W28/14H04W84/12Y02D30/70H04W72/566
Inventor 泽维尔·佩雷-科斯塔丹尼尓·坎普斯·米尓
Owner NEC CORP
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