Transmission power control method and controller

Details Transmission power control method and controller Transmission power control method and controller

2008-04-29

2008-04-29

Nguyen, Tu (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

With control signal

C455S063100

Reexamination Certificate

active

10737860

ABSTRACT:
The object of the present invention to provide a transmission power control method which controls a transmission power of a downlink common channel so that the transmission power is adapted to a radio state of each mobile station, and thereby makes it possible to prevent unnecessary power consumption, reduce interference to other mobile stations, and increase a downlink capacity. The transmission power control method includes (A) acquiring reception quality information of a downlink for a mobile station, (B) measuring a time difference between when an uplink signal is received from the mobile station and when a downlink signal to be transmitted to the mobile station occurs, (C) comparing the measured time difference with a predetermined threshold, and (D) setting a transmission power of a downlink common channel for mobile stations in accordance with the reception quality information, when the time difference is equal to or less than the predetermined threshold.

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Takahiro Hayashi, et al., “A study of Transmission Power Allocation in Downlink Common Control Channels in W-CDMA system”, NTT Mobile Communications Network Inc., 2000, p. 466, (with English translation pp. 1-3).
“A Study of Transmission Power Allocation in Downlink Common Control Channels in W-CDMA system”, Takahiro Hayashi et al, NTT Mobile Communications Network, 2000, p. 466 (with English Translation pp. 1-3).

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