Radio communication system, radio communication device,...

Details Radio communication system, radio communication device,... Radio communication system, radio communication device,...

2011-08-23

2011-08-23

Flynn, Nathan (Department: 2431)

Cryptography

Communication system using cryptography

Wireless communication

C380S044000, C380S046000, C702S069000, C398S026000, C332S117000, C709S230000, C709S231000, C705S057000

Reexamination Certificate

active

08005222

ABSTRACT:
A scrambling initial value is shared without deteriorating transmission efficiency.On the transmission side, a scrambling initial value is created based on a part of a physical layer header not scrambled, a transmission signal sequence scrambled is created by calculating an exclusive-OR operation between a scrambled sequence generated from the scrambling initial value and a transmission data sequence, and is transmitted. On the reception side, the same descrambling initial value as the scrambling initial value is created based on a part of a physical header of a reception frame, and a reception data sequence is descrambled by calculating an exclusive-OR operation between a descrambled sequence generated from this descrambling initial value and a reception signal sequence scrambled.

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