Clean sensing for dynamic frequency hopping in dynamic...

Details Clean sensing for dynamic frequency hopping in dynamic... Clean sensing for dynamic frequency hopping in dynamic...

2011-06-21

2011-06-21

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S132000

Reexamination Certificate

active

07965786

ABSTRACT:
Clean and reliable channel sensing during dynamic frequency hopping over a plurality of overlapping wireless regional area network (WRAN) cells is conducted using a minimum number of channels. By coordinating a phase-shift of the operation periods of each WRAN cell over a minimum number of working channels, interruption-free communication and data transmission for each of the WRAN cells as well as interference-free channel sensing can be achieved.

REFERENCES:
patent: 5862142 (1999-01-01), Takiyasu et al.
patent: 2007/0223419 (2007-09-01), Ji et al.
Dynamic Frequency Hopping Community, IEEE 802.22-06/0113r0, Jun. 2006, pp. 1-61.

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