Method for compensating for capacity overload in a spread spectrum communication system
First Claim
1. A method of compensating for capacity overload in a spread spectrum communication system comprising the steps of:
- determining a receiver site power level at a first base site of said spread spectrum communication system;
comparing said receiver site power level to a threshold power level;
adjusting a signal-to-noise ratio for said spread spectrum communication system at said first base site if said receiver site power level is greater than said threshold power level;
transmitting a power control signal from said first base site to a subscriber of said spread spectrum communication system; and
adjusting a transmit power of said subscriber in response to said power control signal.
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Accused Products
Abstract
A method for compensating for capacity overload in a communication system by first determining the received signal power level at a base site is described. The power level is compared with a threshold power level. If the received power level is greater than the threshold, the signal-to-noise ratio for the system is reduced. With the acceptable signal-to-noise ratio reduced, the subscriber power will be reduced. The received signal power level at the base site will then return to the threshold level. Alternatively, a signal-to-noise ratio of a pilot signal can be determined at the base. The signal-to-noise ratio is compared to a threshold signal-to-noise ratio. If the signal-to-noise ratio of the pilot is less than the threshold, the threshold level is reduced. With the acceptable signal-to-noise ratio reduced, the subscribers are directed to reduce their power.
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Citations
17 Claims
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1. A method of compensating for capacity overload in a spread spectrum communication system comprising the steps of:
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determining a receiver site power level at a first base site of said spread spectrum communication system; comparing said receiver site power level to a threshold power level; adjusting a signal-to-noise ratio for said spread spectrum communication system at said first base site if said receiver site power level is greater than said threshold power level; transmitting a power control signal from said first base site to a subscriber of said spread spectrum communication system; and adjusting a transmit power of said subscriber in response to said power control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of compensating for capacity overload in a spread spectrum communication system comprising the steps of:
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determining a signal-to-noise ratio of a pilot signal of a pilot of said spread spectrum communication system; comparing said signal-to-noise ratio to a threshold signal-to-noise ratio; adjusting said threshold signal-to-noise ratio for said spread spectrum communication system at a first base site if said signal-to-noise ratio is less than said threshold signal-to-noise ratio; transmitting a power control signal from said first base site to a subscriber of said spread spectrum communication system; and adjusting a transmit power of said subscriber in response to said power control signal. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A spread spectrum communication system comprising:
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determining means for determining a receiver site power level at a base site of said spread spectrum communication system; comparing means coupled to said determining means for comparing said receiver site power level to a threshold power level; adjusting means coupled to said comparing means for adjusting a signal-to-noise ratio for said spread spectrum communication system at said base site if said receiver site power level is greater than said threshold power level; transmitting means coupled to said adjusting means for transmitting a power control signal from said base site to a subscriber of said spread spectrum communication system; and adjusting means at said subscriber for adjusting a transmit power of said subscriber in response to said power control signal.
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17. A spread spectrum communication system comprising:
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determining means for determining a signal-to-noise ratio of a pilot signal of a pilot of said spread spectrum communication system; comparing means coupled to said determining means to compare said signal-to-noise ratio to a threshold signal-to-noise ratio; adjusting means coupled to said comparing means for adjusting said threshold signal-to-noise ratio for said spread spectrum communication system at said base site if said signal-to-noise ratio is less than said threshold signal-to-noise ratio; transmitting means coupled to said adjusting means for transmitting a power control signal from said base site to a subscriber of said spread spectrum communication system; and adjusting means at said subscriber for adjusting a transmit power of said subscriber in response to said power control signal.
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Specification