Base station, mobile communication system, and communication...

Details Base station, mobile communication system, and communication... Base station, mobile communication system, and communication...

2006-08-29

2006-08-29

Feild, Joseph (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S575700, C455S025000, C455S082000, C455S063400

Reexamination Certificate

active

07099697

ABSTRACT:
A base station comprises a directional antenna configured to transmit a directional beam to a mobile station, an omnidirectional antenna configured to transmit an omnidirectional beam to the mobile station, and an antenna controller configured to determine whether or not the mobile station is capable of receiving the directional beam, and select the directional antenna as an antenna for transmitting individual data in a case of being capable of receiving the directional beam, or select the omnidirectional antenna as an antenna for transmitting the individual data in a case of being incapable of receiving the directional beam.

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S. Tanak, et al., IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E80-A, No. 12, pp. 2445-2454, “Pilot Symbol-Assisted Decision-Directed Coherent Adaptive Array Diversity for DS-CDMA Mobile Radio Reverse Link”, Dec. 1997.
H. Taoka, et al., IEEE Wireless Communications, pp. 34-41, “Adaptive Antenna Array Transmit Diversity in FDD Forward Link for W-CDMA and Broadband Packet Wireless Access”, Apr. 2002.

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