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Method and device for transmitting network sound in radio local area network

A wireless local area network and transmission network technology, applied in the field of network voice transmission, can solve the problems of low efficiency and ineffective use of wireless access point bandwidth, etc., and achieve the effect of reliable service

Inactive Publication Date: 2004-12-15
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of 802.11e is to provide QoS guarantee for multimedia services in wireless LANs, but it needs to be implemented through two scheduling, which is inefficient and cannot effectively use the bandwidth of wireless access points

Method used

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  • Method and device for transmitting network sound in radio local area network
  • Method and device for transmitting network sound in radio local area network
  • Method and device for transmitting network sound in radio local area network

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Embodiment Construction

[0042] The core of the method of the present invention is to schedule voice frames and data frames separately by optimizing the AP (Access Point) in the 802.11 standard to schedule voice frames under PCF (centralized control mode), and to schedule voice frames in a contention-free period. Centrally controlled round-robin scheduling of frames, using distributed CSMA / CA (Carrier Sense Multiple Access / Collision Avoidance) protocol during the contention period to share the data frames with the wireless medium, maximizing the use of the bandwidth of the access point, making the wireless local area network Maximize the capacity of medium IP voice customers.

[0043]Those skilled in the art know that there are mainly two working modes of WLAN (Wireless Local Area Network): infrastructure mode and peer-to-peer network mode. The infrastructure mode is centered on the wireless access point. At this time, the wireless access point of the WLAN can be regarded as an extension of the wired ...

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Abstract

This invention discloses a method for transmitting network phones in WLAN including: designing different dispatch ways of phonetic signal frame and data signal frame to acquire the largest number of phonetic users allowed by access points according to the different dispatch ways of the set phonetic signal frame and data signal frame and to set up transmission of network phones accordingly. This invention can fully utilize bandwidth of radio access points to increase volume of IP phone users in WLAN.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and device for transmitting network voice in a wireless local area network. Background technique [0002] At present, with the development of Internet and multimedia communication, VoIP technology has been widely used in enterprise communication. VoIP is a packetization and digital transmission technology based on IP technology. Its basic principle is: compress and encode voice data through voice compression algorithm, then package these voice data according to IP and other related protocols, and transfer the data through IP network The packet is transmitted to the receiving place, and then these voice data packets are stringed together, and after decoding and decompression processing, the original voice signal is restored, so as to achieve the purpose of transmitting voice through the IP network. The development of VoIP technology has two directions, one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L29/02
Inventor 华东明杨仁忠孙国滨
Owner LENOVO (BEIJING) LTD
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