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Detail
Registered METHOD FOR PROTECTING DATA IN A MU-MIMO BASED WIRELESS COMMUNICATION SYSTEM
- Inventors
- Yunjoo Kim, Sok-Kyu Lee, Lee Jae Seung
- Application No.
- 13511363 (2010.11.24)
- Publication No.
- 20120236840 (2012.09.20)
- Registration No.
- 8861495 (2014.10.14)
- Country
- UNITED STATES
- Project Code
- 10MI3500, Research on Radio Transmission Technology for IEEE 802.11 VHT WLAN, Sok-Kyu Lee
- Abstract
- 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 protec
- Family