Current consumption reduction with low power amplifier
First Claim
1. A transceiver for a wireless communication network, the transceiver comprisinga transceiver module to determine a signal power for each of a plurality of signals to be transmitted, where the transceiver module determines that:
- a first signal, of the plurality of signals, is associated with a signal power above a particular power threshold, anda second signal, of the plurality of signals, is associated with a signal power below the power threshold;
a directing unit to direct;
the first signal to one or more first amplifiers, where said one or more first amplifiers have high efficiency at signal powers above the power threshold, andthe second signal to one or more second amplifiers, where said one or more second amplifiers have high efficiency at signal powers below the power threshold;
an isolation arrangement module, connected to the one or more first amplifiers, to prevent signal reflections of the first signal when amplified by the one or more first amplifiers; and
an antenna module that includes a first diversity antenna and a first main antenna, the antenna module to transmit, as output signals, amplified signals received from at least one of the one or more first amplifiers or the one or more second amplifiers,where the first diversity antenna, and not the first main antenna, receives the first signal, when amplified by the one or more first amplifiers, andwhere the first main antenna, and not the first diversity antenna, receives the second signal, when amplified by the one or more second amplifiers.
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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
16 Claims
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1. A transceiver for a wireless communication network, the transceiver comprising
a transceiver module to determine a signal power for each of a plurality of signals to be transmitted, where the transceiver module determines that: -
a first signal, of the plurality of signals, is associated with a signal power above a particular power threshold, and a second signal, of the plurality of signals, is associated with a signal power below the power threshold; a directing unit to direct; the first signal to one or more first amplifiers, where said one or more first amplifiers have high efficiency at signal powers above the power threshold, and the second signal to one or more second amplifiers, where said one or more second amplifiers have high efficiency at signal powers below the power threshold; an isolation arrangement module, connected to the one or more first amplifiers, to prevent signal reflections of the first signal when amplified by the one or more first amplifiers; and an antenna module that includes a first diversity antenna and a first main antenna, the antenna module to transmit, as output signals, amplified signals received from at least one of the one or more first amplifiers or the one or more second amplifiers, where the first diversity antenna, and not the first main antenna, receives the first signal, when amplified by the one or more first amplifiers, and where the first main antenna, and not the first diversity antenna, receives the second signal, when amplified by the one or more second amplifiers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method implemented by a transceiver in a wireless communication network, the method comprising:
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receiving a signal; determining a power at which the signal is to be sent; comparing the power at which the signal is to be sent to a particular power threshold; directing the signal, when the power is above the particular power threshold, to a first amplifier with high efficiency at signal powers above the particular power threshold directing the signal, when the power is below the particular power threshold, to a second amplifier with high efficiency at signal powers below the particular power threshold; amplifying the signal at the one of the first amplifier or the second amplifier to which the signal is directed; sending the amplified signal to one of a first diversity antenna or a first main antenna, where the first diversity antenna receives the amplified signal when amplified by the first amplifier, and where the first main antenna receives the amplified signal when amplified by the second amplifier; and transmitting the amplified signal over a radio interface via the first diversity antenna or the first main antenna to which the amplified signal is sent. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification