Symbol synchronization method for OFDM-based wireless...

Details Symbol synchronization method for OFDM-based wireless... Symbol synchronization method for OFDM-based wireless...

2008-09-16

2008-09-16

Pérez-Gutiérrez, Rafael (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S210000, C370S401000, C370S331000, C370S503000, C370S208000, C455S436000, C455S444000, C714S746000, C375S354000, C375S260000

Reexamination Certificate

active

11173626

ABSTRACT:
Disclosed is a symbol synchronization method in an OFDM-based communication system which includes multiple access nodes supporting wireless connection of terminals, supports multi-connection of each terminal for the access nodes and performs synchronization by means of a cyclic prefix. The symbol synchronization method includes monitoring connection of a new access node; setting a number of times by which the new access node transmits equal symbols and a number of times by which at least one existing access node transmits the equal symbols when the connection of the new access node is detected; transmitting the equal symbols by the determined number of times by each access node; and performing synchronization by means of the symbols received from the access nodes by the terminal.

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Nobuaki Mochizuki et al., “A High Performance Frequency and Timing Synchronization Technique for OFDM”, NTT Wireless Systems Laboratories, pp. 3443-3448, 1998.

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