公开(公告)号：US07471667B2

公开(公告)日：2008-12-30

申请号：US10080156

申请日：2002-02-19

Applicant: Olaf Hirsch ,  Atul Kumar Garg ,  Sunghyun Choi ,  Abraham Jan de Bart ,  Paul Gruijters

Inventor： Olaf Hirsch ,  Atul Kumar Garg ,  Sunghyun Choi ,  Abraham Jan de Bart ,  Paul Gruijters

IPC: H04L12/413 ,  H04Q7/20

CPC classification number: H04W74/02 ,  H04L5/023 ,  H04L5/1453 ,  H04L27/0008 ,  H04L27/2602 ,  H04W84/12 ,  H04W88/08

Abstract: A local area network is provided where an OFDM station and DSSS/CCK station coexist. During a contention-free period both stations operate under the point coordination function rules as defined in the IEEE 802.11 specification. Both stations transmit data when polled by the access point. The contention-free period comprises a sub-contention period during which only the OFDM station communicate. During the sub-contention period the OFDM station operates under the distributed coordination function while the DSSS/CCK station waits to be polled by the access point before starting to communicate.

Abstract translation: 提供了一个局域网，其中OFDM站和DSSS / CCK站共存。 在无竞争期间，两个站都按照IEEE 802.11规范中定义的点协调功能规则运行。 两个站点在接入点轮询时都会发送数据。 无竞争时段包括只有OFDM站进行通信的次争用期。 在子争用期间，OFDM站在分布式协调功能下运行，而DSSS / CCK站在开始通信之前等待接入点轮询。