Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method capable of reducing the information exchange redundancy in the WLAN 802.11

A wireless local area network and information exchange technology, applied in the field of reducing the redundancy of information exchanged between AP and non-AP user terminals, can solve the problems of small packet transmission efficiency without a good solution, affecting system coverage, etc., to achieve a wide range of applications , high transmission efficiency, and the effect of improving voice capacity

Inactive Publication Date: 2007-10-17
ZTE CORP
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to improve the transmission of VoIP voice packets, 802.11 allows the PHY information header to be configured with a short preamble (96 microseconds) to replace a long preamble (192 microseconds), which only alleviates the problem of transmission efficiency, but it requires The minimum operating rate of the entire system is 2Mbps, which greatly affects the coverage of the system
It can be seen that the 802.11 protocol does not have a good solution to the transmission efficiency of small packets

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
  • Method capable of reducing the information exchange redundancy in the WLAN 802.11
  • Method capable of reducing the information exchange redundancy in the WLAN 802.11
  • Method capable of reducing the information exchange redundancy in the WLAN 802.11

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The method of the present invention will be further described below in conjunction with specific examples.

[0043] FIG. 1 is a diagram of the frame control field of the present invention, wherein the * column (type=10, subtype=1101) is a newly added frame control word. When sent to AP flag = 1, from AP flag = 0, and type = 10 (binary) and subtype = 1101 (binary), bits 15 and 10 represent the number of subframes, and they can represent up to 3 subframes.

[0044] In the method of the present invention, if the user terminal supporting centralized query and time division multiple access joins a basic service set (BSS) system, it needs to go through the following steps to reach the transmission of voice packets:

[0045] a) It first needs to determine whether the AP supports centralized query and time division multiple access mode, whether the B7 setting in the QoS information field in the quality of service QoS capability element (QoS Capability) sent by the AP is 1, 1 me...

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

A method for reducing the information exchange redundancy in the radio LAN 802.11, the steps are as follows: a) construct the small packets to different user terminals as one sub-frame body at the AP end and then concentrate them to one super MAC down link frame; one sub-frame will include the start time and length of the TXOP of the corresponding user terminal and one link identifier; all sub-frames share one PHY information header; b) set CRC check code for every sub-frame; c) the link of every AP and non-AP user terminal will replace the MAC source and destination address with one link identifier; d) set the duration of the whole super MAC down link frame in the Duration / ID of the super MAC down link frame and the duration of total uplink of the corresponding terminal user; e) the uplink MAC frame includes the link identifier and the size of the user terminal queue; the queue size is defined as total size of all packets which are sent by the user terminal; f) the and or result between the uplink MAC frame and BSSID, or one system identifier is used to differentiate the different basic service set BSS.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a method for reducing the redundancy of exchanged information between an AP and a non-AP user terminal, which is applied in a wireless local area network technology 802.11 system. Background technique [0002] In the WLAN 802.11 protocol, there are currently two methods suitable for transmitting voice. One is Extended Data Channel Access (EDCA), and the other is Hybrid Control Channel Access (HCCA). [0003] Hybrid Control Channel Access (HCCA), which implements true polling. For this purpose, a control device (HC = hybrid controller) can be installed on the AP, which is responsible for the management of the polling. The site receives 8 egress queues, which distribute data into queues for transmission based on demand. All waiting queues must be registered with the AP through a so-called Traffic Flow Specification (TSPEC). The TSPEC includes the station's "expectation req...

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 Applications(China)
IPC IPC(8): H04L12/56H04L12/28
CPCH04L69/324H04W28/06
Inventor 张跃黄龄蕙
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com