CURRENT CONSUMPTION REDUCTION WITH LOW POWER AMPLIFIER
First Claim
1. A transceiver for a wireless communication network, comprisinga transceiver module for determining the signal power to be transmitted;
- a unit for directing one or more signals whose power is above a certain power threshold to one or more first amplifiers with high efficiency above the power threshold and one or more signals below the power threshold to one or more second amplifiers with high efficiency at signal powers below the power threshold;
an isolation arrangement connected to the one or more first amplifiers for preventing signal reflections of the signals amplified by the one or more first amplifiers; and
at least one first diversity antenna and at least one first main antenna for transmitting the amplified signals.
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Accused Products
Abstract
A transceiver circuit and a method in a wireless communication network are provided, where a signal power level for a signal received at the transceiver circuit is measured and compared to a predefined threshold power level. At least two groups of power amplifiers may be used, where one group is optimized for high efficiency above the predefined threshold power level, and one group is optimized for high efficiency below the predefined threshold power level. The amplifiers may be used to amplify the received signal depending on the signal power level in relation to the predefined power threshold level. The signal may then be filtered by duplex filters and forwarded to a diversity antenna or a main antenna where it is transmitted over an air interface.
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Citations
12 Claims
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1. A transceiver for a wireless communication network, comprising
a transceiver module for determining the signal power to be transmitted; -
a unit for directing one or more signals whose power is above a certain power threshold to one or more first amplifiers with high efficiency above the power threshold and one or more signals below the power threshold to one or more second amplifiers with high efficiency at signal powers below the power threshold; an isolation arrangement connected to the one or more first amplifiers for preventing signal reflections of the signals amplified by the one or more first amplifiers; and at least one first diversity antenna and at least one first main antenna for transmitting the amplified signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for amplifying signal in a wireless communication network, comprising:
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receiving one or more signals; determining the power at which the one or more received signals are to be sent; comparing the power at which the which the one or more received signals are to be sent to a predefined power threshold; directing one or more signals whose power is above a certain power threshold to one or more first amplifiers with high efficiency above the power threshold power, and one or more signals below the power threshold to one or more second amplifiers with high efficiency at signal powers below the power threshold; amplifying the signal at the one or more first amplifiers; sending the amplified signal to at least one first diversity antenna or to at least one main antenna; and transmitting the one or more signals over the radio interface via the at least one first diversity antenna or at least one first main antenna.
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Specification