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Method of transmitting multimedia data over wlan and point coordinator in wlan

A technology of wireless local area network and multimedia data, which is applied in the field of wireless local area network, can solve the problem of lack of common PCF or DCF methods that fully meet the needs of local networks, and achieve the effect of low cost, reasonable software and guaranteed reliability

Inactive Publication Date: 2004-08-25
SAMSUNG ELECTRONICS CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the IEEE 802.11e working group is now vigorously implementing standardization to ensure quality of service (QoS), it does not propose any significant alternatives to the general-purpose PCF or DCF approaches that adequately meet the needs of local networks
[0016] In addition, the general local network technology only considers the reversible data transmission scheme suitable for balance, which means that it lacks an optimization mechanism for different environments, such as multimedia-driven local WLAN

Method used

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  • Method of transmitting multimedia data over wlan and point coordinator in wlan
  • Method of transmitting multimedia data over wlan and point coordinator in wlan
  • Method of transmitting multimedia data over wlan and point coordinator in wlan

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Embodiment Construction

[0054] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments are described below so as to explain the present invention by referring to the figures.

[0055] Stations, such as an HDTV and an SDTV, do not require common two-way WLAN communication. Rather, such stations have a one-way traffic characteristic which serves as a key factor for realizing the coordination function of the multimedia point. A relatively large amount of multimedia data is received via a local gateway using mPCF. The unidirectional traffic nature makes it possible and eliminates the compensation delay and polling overhead while still preventing collisions between stations and at the multimedia point coordination function compared to the performance of the stations during the distributed coordination function cycle Cycle period significantly he...

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Abstract

Transmitting multimedia data over a wireless local area network (WLAN), guaranteeing the full length of a multimedia point coordination function (mPCF) period in a WLAN, and dynamically allotting a length of the mPCF period, by receiving a request for multimedia resource from a predetermined device connected to the WLAN, during a distributed coordination function (DCF) period when a right to use a channel is distributed through contention and unilaterally transmitting the requested multimedia resource to the predetermined device during the mPCF period when the right to use a channel is distributed in a centralized manner.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 2002-76040 filed on December 2, 2002 in the Korean Patent Office, the entire disclosure of which is hereby incorporated by reference. technical field [0003] The present invention relates to wireless local area network (WLAN), more specifically, relate to a kind of method for transmitting multimedia data on WLAN, ensure the method for the full length of a point coordination function (PCF) cycle on WLAN, and a kind of in WLAN point coordinator. Background technique [0004] Recently, more public attention has been paid to WLAN-based multimedia data transmission technology rather than conventional data transmission technology. Local network technology, which is usually considered as an edge communication technology in the past, has emerged as one of the most promising next-generation core technologies, especially wireless multimedia local network techn...

Claims

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Application Information

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IPC IPC(8): H04L12/16H04L1/16H04L12/28H04L12/403H04L12/56H04L29/06
CPCH04L29/06027H04L1/16H04W74/08H04W72/044H04L29/06462H04W72/0406H04L65/4084H04L29/06H04W84/12H04L65/612H04W72/20H04W74/02H04L12/16H04L9/40H04L65/1101
Inventor 崔亨旭尹硕振
Owner SAMSUNG ELECTRONICS CO LTD
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