Control of a multi-carrier power amplifier
First Claim
1. An amplifier for a communication system, wherein the amplifier is adapted to amplify a plurality of radio frequency input signals modulated onto individual carrier signals, and the total radio frequency output power of the amplifier is less than the sum of the maximum specified output powers of the individual carrier signals.
1 Assignment
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Accused Products
Abstract
A transmit power control system and method is provided which utilizes an efficient allocation of average output power of a multi-carrier power amplifier (MCPA), the average output power being a weighted average of the actual power over multiple time slots. Periodically, using the efficient allocation system and method, there will he short periods where the desired average output power will exceed the maximum tolerable power of the MCPA, PMCPA. These short periods in which the desired output power will exceed PMCPA, are handled by a system and method which produces a reduced margin between the total power per time slot and PMCPA. This reduced margin allows the MCPA to serve a larger number of users per time slot than conventional MCPAs. Alternatively, the MCPA can serve the same number of users as a conventional MCPA, but with higher demands on output power for each user and/or more efficient use of the MCPA'"'"'s resources.
18 Citations
13 Claims
- 1. An amplifier for a communication system, wherein the amplifier is adapted to amplify a plurality of radio frequency input signals modulated onto individual carrier signals, and the total radio frequency output power of the amplifier is less than the sum of the maximum specified output powers of the individual carrier signals.
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7. A method of operating a Time Division Multiple Access (TDMA) communication system comprising a multi-carrier power amplifier, comprising the steps of:
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logging call activity on each timeslot of each carrier associated with the multi-carrier power amplifier; and
logging total transmit power of the multi-carrier power amplifier for each timeslot, wherein a new call is assigned to a new timeslot on a given carrier such that total transmit power is substantially uniform across all timeslots. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification