Radio communication system, radio communication method, and...

Details Radio communication system, radio communication method, and... Radio communication system, radio communication method, and...

2003-10-07

2009-10-20

Vo, Nguyen (Department: 2618)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S436000

Reexamination Certificate

active

07606196

ABSTRACT:
The object of the present invention is to prevent continued reception of unreliable information symbols at the receiver apparatus200in the OFDM radio communication system, so that it is possible to improve transmission quality. The radio communication system according to the present invention comprises a transmitter apparatus100configured to estimate conditions of propagation paths used in the radio communication, arrange information symbols along the direction of the frequency axis in accordance with a predetermined pattern based on the estimated conditions of propagation paths, and transmit a radio communication signal including the arranged information symbols and a receiver apparatus200configured to receive the radio communication signal, and rearrange the information symbol included in the radio communication signal along the direction of the frequency axis in accordance with a reverse pattern to the predetermined pattern.

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Qingxin Chen, et al., “Multicarrier CDMA with Adaptive Frequency Hopping for Mobile Radio Systems”, IEEE Journal on Selected Areas in Communications, XP011054569, vol. 14, No. 9, Dec. 1996. pp. 1852-1858.

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