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Method and system for wireless local area network (lan) communication using virtual time division multiple access (tdma)

A technology of a wireless local area network and a communication method, which is applied in the field of sending and receiving wireless local area network data, and can solve the problems of low use efficiency of wireless channels and the like

Inactive Publication Date: 2005-02-09
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to traditional technology, it ensures that all stations have the opportunity to send data, but the use of wireless channels is very inefficient

Method used

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  • Method and system for wireless local area network (lan) communication using virtual time division multiple access (tdma)
  • Method and system for wireless local area network (lan) communication using virtual time division multiple access (tdma)
  • Method and system for wireless local area network (lan) communication using virtual time division multiple access (tdma)

Examples

Experimental program
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Embodiment Construction

[0029] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] figure 2 is an example diagram illustrating a contention-free period divided into multiple time slots in accordance with an aspect of the present invention.

[0031] Referring to the figure, superframes are classified into contention periods and contention-free periods. And the contention-free period is divided into multiple time slots. The length of a slot has been established in the Management Information Base (MIB).

[0032] When stations need to do quality of service (QoS) data transmission, they compete with each other in a contention cycle to request an access point (AP) to allocate time slots.

[0033]Based on the time slot allocation requests sent by each station, the AP makes a schedule of times during which the stations send data. In summary, time slots are assigned to each station. At this time, the AP needs to allocate by conside...

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Abstract

A time division-based wireless LAN communication method by use of an AP in an infrastructure mode, including, on the AP's side, receiving a time slot allocation request frame from a station, allocating time slots during which the station can transmit data based on the time slot allocation request frame, and broadcasting reservation information on allocated time slots. A time division-based wireless LAN communication system includes an AP receiving a time slot allocation request frame transmitted by a station, allocating time slots on this basis, with which the station can transmit data, and broadcasting reservation information on allocated time slots, and one or more stations transmitting the time slot allocation request frame to the AP when there is data to be transmitted, receiving reservation information on time slots allocated by the AP based on the received time slot allocation request frame, and transmitting the data according to reservation of the beacon.

Description

technical field [0001] The present invention relates to a method of transmitting and receiving wireless local area network (LAN) data. More particularly, the present invention relates to a method and system for transmitting and receiving wireless LAN data according to time slots generated as a result of dividing a contention-free period into a plurality of time slots. Background technique [0002] Currently, there are several standards involved in the transmission of data wirelessly. For example, Bluetooth is used to construct a small-scale wireless network, third-generation mobile communication in WCDMA (Wireless Code Division Multiple Access) mode, IEEE 802.11-based wireless LAN, and the like. Among them, a wireless LAN adopting the IEEE 802.11 standard has been successful, and its use has been increased. [0003] IEEE 802.11 adopts a technology using Frequency Hopping (FH) and Direct Sequence Spread Spectrum (DS) and a technology using Infrared Rays (IR). The transmiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/56
CPCH04W28/26H04W72/0413H04W88/08H04W72/042H04W48/08H04W84/12H04W72/23H04W72/21H04L12/28H04J3/00
Inventor 崔亨旭李成熙
Owner SAMSUNG ELECTRONICS CO LTD
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