Spectrum sharing in a wireless communication network

Details Spectrum sharing in a wireless communication network Spectrum sharing in a wireless communication network

2007-02-05

2010-10-12

Sam, Phirin (Department: 2476)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S208000, C370S210000

Reexamination Certificate

active

07813315

ABSTRACT:
A system and method for synchronous spectrum sharing for use in a wireless communication system based on orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) signaling is disclosed. The system includes a frame detector configured to detect a frame of a broadcast waveform and extract sub-carrier information from a subframe or Secondary User Map (SU MAP). SU MAP includes information on usable sub-carrier and pilot sub-carriers for secondary users. The system allows transmitting data from the secondary user node in unused sub-carriers thereby making efficient use of unused or idle spectrum. Accordingly, secondary users of wireless communication systems can dynamically form ad-hoc mesh network communications in fixed or mobile scenarios.

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