Transmitting and protecting long frames in a wireless local...

Details Transmitting and protecting long frames in a wireless local... Transmitting and protecting long frames in a wireless local...

2004-12-29

2008-11-04

Pérez-Gutiérrez, Rafael (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S331000, C370S332000, C370S333000, C370S334000, C370S445000, C370S447000, C370S389000

Reexamination Certificate

active

07447185

ABSTRACT:
Methods and systems for communicating in a wireless network may use long frames each including an aggregation of medium access control (MAC) protocol data units (MPDUs). In certain embodiments, the first MPDU of a frame may be composed in a format compatible with legacy wireless local area network devices designed to read frames having only one MPDU. A field in the first MPDU may include a duration value which may be used to update a Network Allocation Vector (NAV) of the legacy device to refrain from transmitting for the duration of the long frame. Various other embodiments and implementations are also disclosed.

REFERENCES:
patent: 2002/0181425 (2002-12-01), Sherman
patent: 2003/0169769 (2003-09-01), Ho et al.
patent: 2003/0210673 (2003-11-01), Nishimura
patent: 2005/0053066 (2005-03-01), Famolari
patent: 2005/0152359 (2005-07-01), Giesberts et al.
patent: 2005/0232208 (2005-10-01), Hansen
patent: 2005/0238016 (2005-10-01), Nishibayashi et al.
patent: 2005/0286474 (2005-12-01), van Zelst et al.
patent: 2005/0287978 (2005-12-01), Maltsev et al.
patent: 2006/0109814 (2006-05-01), Kuzminskiy et al.
patent: 2006/0268793 (2006-11-01), Zanaty
patent: WO 2004/112324 (2004-12-01), None
patent: WO 2005/112354 (2005-11-01), None
International Search Report and Written Opinion for PCT/US2005/046374 International Filing Date Dec. 19, 2005. Date Mailed Jun. 19, 2006.
Yang Xiao, “Concatenation and piggyback mechanisms for the IEEE 802.11 MAC” Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE Atlanta, GA, USA Mar. 21-25, 2004, Piscataway NJ, USA IEEE, vol. 3, Mar. 21, 2004, pp. 1642-1647, XP010708040.
Yang Xiao, “Packing Mechanisms for the IEEE 802.11n wireless LANs” Global Telecommunications Conference, 2004. Globecom '04. IEEE Dallas, TX, USA Nov. 29-Dec. 3, 2004, Piscataway NJ, USA IEEE, Nov. 29, 2004 pp. 3275-3279, XP010758325.
Syed Aon Mujtaba, “Technical Specification for MAC and the PHY layer of the TGn Sync proposal to IEEE 802.11 TGn” IEEE P802.11 Wireless LANS, May 2005, pp. 1-134, XP002340381.

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