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Registered MEDIA ACCESS CONTROL APPARATUS AND METHOD FOR GUARANTEEING QUALITY OF SERVICE IN WIRELES LAN

무선랜 구간에서 통신 품질을 보장하는 MAC 구성 방법
이미지 확대
Inventors
Koo Ki Jong, Hwang Dae Hwan
Application No.
12423938 (2009.04.15)
Publication No.
20090207825 (2009.08.20)
Registration No.
8199729 (2012.06.12)
Country
UNITED STATES
Project Code
03MT2100, Development of Next Generation High-Quality VoIP Cire Technology, Do Young Kim
Abstract
A media access control (MAC) apparatus and corresponding methods for guaranteeing quality-of-service in a wireless local area network (LAN) are presented. The MAC method includes the steps of extracting, performing, determining, a first transmitting step, and a second transmitting step. The extracting step includes extracting a user priority from a frame received from an upper layer and separately storing a voice frame and a non-voice frame according to an access category (AC). The performing step includes independently performing backoff operations for the voice frame and the non-voice frame. The determining step includes determining whether the backoff operations for the voice frame and the non-voice frame have simultaneously ended. The first transmitting step includes transmitting the voice frame having a higher priority first and performing the backoff operation for the non-voice frame if the backoff operations have simultaneously ended. The second transmitting step includes transmitting a frame whose backoff operation ends if the backoff operations have not simultaneously ended.
KSP Keywords
Determining step, Local Area Network(LAN), MAC method, Media access, Wireless Local Area Networks(WLANs), access control, area network, local area, media access control(MAC), quality of service(QoS)
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Status Patent Country KIPRIS
Registered MEDIA ACCESS CONTROL APPARATUS AND METHOD FOR GUARANTEEING QUALITY OF SERVICE IN WIRELESS LA UNITED STATES