Power control in spread spectrum communications systems

Details Power control in spread spectrum communications systems Power control in spread spectrum communications systems

2005-08-30

2005-08-30

Trinh, Sonny (Department: 2687)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S418000, C455S419000, C455S420000, C455S127500, C455S572000

Reexamination Certificate

active

06937874

ABSTRACT:
A method for power control in spread spectrum communication systems includes a first step of providing multiplexed registers coupled to a control circuit and controlled by a control signal. A next step includes measuring a transmit power. Next steps include receiving TPC information, and determining whether the TPC information calls for an increase or decrease in power. A next step includes comparing the TPC information to the last TPC information, wherein if the TPC information is the same as the last TPC information, calculating a new power control value using the TPC information and measured transmit power, and writing the new power control value to the next selected register. A next step includes applying the control signal corresponding to the next selected register to the multiplexer to couple the value of next selected register to the control circuit.

REFERENCES:
patent: 6166622 (2000-12-01), Hosur et al.
patent: 6553018 (2003-04-01), Ichihara
patent: 2002/0094835 (2002-07-01), Hayashi et al.
3GPP TS 25.214 v4.3.0 (Dec. 2001), 3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical layer procedures (FDD) (Release 4).
3GPP TS 25.133 v5.1.0 (Dec. 2001), 3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Requirements for Support of Radio Resource Management (FDD) (Release 5).

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