METHOD FOR PROTECTING DATA IN A MU-MIMO BASED WIRELESS COMMUNICATION SYSTEM
摘要
The present invention relates to a method for protecting MU-MIMO (Multi User-Multiple Input Multiple Output) data through a multi-RTS/CTS frame exchange in a MU-MIMO based wireless communication system. The method of the present invention comprises: a process where an indicator for VHT data protection is added to an RTS frame, using the structure of an RTS/CTS frame for an existing legacy terminal during the multi RTS/CTS frame exchange; a process where an access point designates and then transmits the duration period of the RTS frame while transmitting the RTS frame; and a process where wireless terminals up to the (n-1)th terminal designate the duration period of the CTS frame as '0' and send the designated duration period, while only the n-th wireless terminal designates NAV for data protection.
申请公布号
WO2011065749(A3)
申请公布日期
2011.11.10
申请号
WO2010KR08361
申请日期
2010.11.24
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;KIM, YUN-JOO;LEE, JAE-SEUNG;LEE, SOK-KYU