Method and apparatus for setting the threshold of a power control target in a spread spectrum communication system
First Claim
1. A process for controlling an updated target signal to interference ratio in a communication system, the process comprising:
- receiving an updated target signal to interference ratio;
establishing a threshold signal to interference ratio;
comparing the updated target signal to interference ratio and the threshold signal to interference ratio; and
setting the updated target signal to interference ratio equal to the threshold signal to interference ratio if the updated target signal to interference ratio is less than the threshold signal to interference ratio.
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Abstract
A communication system and method for revising an updated target signal to interference ratio (SIR) ensure that the updated target SIR does not fall below a threshold target SIR that is required to ensure a specified minimum quality of service. In one aspect, the present invention provides a method for controlling an updated target signal to interference ratio in a communication system. In this method 180, an updated target signal to interference ratio is received (block 182). A threshold signal to interference ratio is established (block 184) and the updated target signal to interference ratio and the threshold signal to interference ratio are compared (block 186). The updated target signal to interference ratio is then set equal to the threshold signal to interference ratio if the updated target signal to interference ratio is less than the threshold signal to interference ratio (block 188).
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Citations
20 Claims
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1. A process for controlling an updated target signal to interference ratio in a communication system, the process comprising:
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receiving an updated target signal to interference ratio;
establishing a threshold signal to interference ratio;
comparing the updated target signal to interference ratio and the threshold signal to interference ratio; and
setting the updated target signal to interference ratio equal to the threshold signal to interference ratio if the updated target signal to interference ratio is less than the threshold signal to interference ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A handheld communication device comprising:
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an antenna;
a signal input/output section coupled to the antenna;
a user interface; and
a processor, the processor coupled to the signal input/output section and the user interface, wherein the processor is adapted to receive an updated target signal to interference ratio;
the processor is adapted to establish a threshold signal to interference ratio;
the processor is adapted to compare the updated target signal to interference ratio and the threshold signal to interference ratio; and
the processor is adapted to set the updated target signal to interference ratio equal to the threshold signal to interference ratio if the updated target signal to interference ratio is less than the threshold signal to interference ratio. - View Dependent Claims (11, 12, 13, 14)
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15. An apparatus for use in a spread-spectrum, multi-data rate communication system, the apparatus comprising:
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means for comparing an updated target signal to interference ratio (SIR) to a threshold SIR; and
means for setting the updated target SIR equal to the threshold SIR if the updated target SIR is less than the threshold SIR. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification