Channel synchronization apparatus of TDD-based mobile...

Details Channel synchronization apparatus of TDD-based mobile... Channel synchronization apparatus of TDD-based mobile...

2008-04-01

2008-04-01

Perez-Gutierrez, Rafael (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S249000, C370S278000, C370S280000

Reexamination Certificate

active

07352736

ABSTRACT:
An apparatus and method for synchronizing the transmission of uplink signals and reception of downlink signals by a terminal in a mobile communication system is disclosed, the apparatus and method allowing the terminal itself to adaptively compensate for deflection generated in synchronization of the transmission channel and to recover a synchronization error of the transmission channel without re-setting communications with the base station. A feedback path is formed between a transmitting unit, a receiving unit and a processing unit to facilitate frequently checking the synchronization between uplink and downlink timeslots by generating a reference signal input to the transmitting unit and comparing a signal received from the receiving unit. The channel synchronization apparatus and method may be adapted for a terminal using a software-based modem or a hardware-based modem.

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