Abstract
A method and apparatus for controlling transmission power in a mobile communication system is disclosed. The method disclosed provides for a closed-loop power control method. A mobile station (30) provides information on the quality of the signal received from the base station (50), and the base station (50) responds by adjusting the power allocated to that user in a shared base station signal. The transmission power is adjusted initially by a large increment and then ramped down at an increasingly decreasing rate. The mobile station (30) also provides information to the base station (50) as to its relative velocity and the base station (50) adjusts its transmission power in accordance with this velocity information.
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|---|---|---|---|---|---|---|---|---|---|
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| Not Available | 12/06/2006 | ISLD-200612-006 | QUALCOMM INC | Yes | Basis Patent | ||||
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| ZA962030B | ----- | ----- | ----- | ----- | ----- | ----- | ----- | |||
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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| ----- | ----- | ----- | ----- | ----- |
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Technologies
Not Available
Product
Not Available
Use Cases
Network OptimizationWireless communication
Services
Not Available
Claim
1. An apparatus for controlling transmission power from a central communications station comprising: receiver means for receiving a signal from a remote station; transmitter means for adjusting a transmission power level in accordance with said received signal wherein said transmission power level is increased by a predetermined amount and for reducing said transmitter power at a predetermined rate following said transmission power increase.
2. The apparatus of Claim 1 wherein said transmitter means is reducing said transmitter power at a predetermined rate following said transmission power increase for a predetermined time period and for reducing said transmitter power at a second predetermined rate following said predetermined time period.
3. The apparatus of Claim 1 wherein said received signal is a power control message generated by said remote station.
4. The apparatus of Claim 1 wherein said received signal is a motion message generated by said remote station.
5. The apparatus of Claim 1 wherein said receiver means is further for measuring a doppler shift in said received signal and wherein said transmitter means for adjusting a transmission power level in accordance with said measured a doppler shift.
6. The apparatus of Claim 1 further comprising a decoder means for decoding said received signal and for generating a quality estimate in accordance with said decoded signal and wherein said transmitter means for adjusting a transmission power level in accordance with said quality estimate.
7. The apparatus of Claim 1 wherein said receiver means is further for measuring received signal power and wherein said transmitter means for adjusting a transmission power level in accordance with said received signal power.']
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