Pilotless, wireless, telecommunications apparatus, systems...

Pulse or digital communications – Receivers

Reexamination Certificate

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C375S261000, C375S326000, C375S148000, C375S216000

Reexamination Certificate

active

10628943

ABSTRACT:
Systems, methods and apparatus are provided for demapping a received wireless signal. The wireless signal includes signal-bearing data without accompanying pilot signals, and demapping is accomplished by extracting information from the signal-bearing data by reducing and averaging differential quadrature components or quadrature components of the received signal. Two embodiments are provided for the demapping procedure within a phase tracking loop. A first embodiment corrects the received signal, while a second embodiment corrects the constellation points

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