Adaptive vector modulation method and system
AssigneeMotorola, Inc.
InventorsKhalid Abdul-Aziz Hamied, Kenneth Anderson Stewart
Life of this patent
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Abstract
A transceiver for implementing an adaptive vector modulation method is disclosed. In response to a binary stream assembled into groups of bits forming symbol indices, a transmitter of the transceiver generates one or more complex values symbols that are normalized over channel coefficients associated with one or more propagation channels between one or more transmitter antennas and one or more receiver antennas. The transmitter controls a transmission of the complex values symbol(s) from the transmitter antenna(s) to a selected receiver antenna. The selection of the receiver antenna is based upon a metric proportional to the average injection power or a vector norm corresponding to each receiver antenna of the receiver antenna(s).
Claims24
A method of operating a transceiver including one or more transmitter antennas, at least one receiver antenna, and one or more propagation channels between the one or more transmitter antennas and the one or more receiver antennas, said method comprising:
- receiving a binary stream assembled into groups of bits forming symbol indices;
- and
- generating at least one complex symbol value in response to a reception of the binary stream, each complex symbol value of the at least one complex symbol value being normalized over one or more channel coefficients associated with the one or more propagation channels.
A transceiver, comprising:
- one or more transmitter antennas;
- one or more receiver antennas;
- one or more propagation channels between said one or more transmitter antennas and said one or more receiver antenna;
- and
- a transmitter operable to generate at least one complex symbol value in response to a reception of a binary stream assembled into groups of bits forming symbol indices, each complex symbol value of the at least one complex symbol value being normalized over one or more channel coefficients associated with said one or more propagation channels.
A method of operating a transceiver including one or more transmitter antennas, one or more receiver antennas, and one or more propagation channels between the one or more transmitter antennas and the one or more receiver antenna, said method comprising:
- computing a metric proportional to an average injection power for each receiver antenna of the one or more receiver antennas;
- selecting a first antenna of the one or more receiver antennas having a smallest average injection power to receive at least one complex value symbol from the one or more transmitter antennas.
A method of operating a transceiver including one or more transmitter antennas, one or more receiver antennas, and one or more propagation channels between the one or more transmitter antennas and the one or more receiver antenna, said method comprising:
- computing a vector norm for each receiver antenna of the one or more receiver antennas;
- selecting a first antenna of the one or more receiver antennas having a largest vector norm to receive at least one complex value symbol from the one or more transmitter antennas.
A transceiver, comprising:
- one or more transmitter antennas;
- one or more receiver antennas;
- one or more propagation channels between said one or more transmitter antennas and said one or more receiver antenna;
- and
- a module operable to compute a metric proportional to an average injection power for each receiver antenna of said one or more receiver antennas, said module further operable to select a first antenna of said one or more receiver antennas having a smallest average injection power to receive at least one complex value symbol from said one or more transmitter antennas.
A transceiver, comprising:
- one or more transmitter antennas;
- one or more receiver antennas;
- one or more propagation channels between said one or more transmitter antennas and said one or more receiver antenna;
- and
- a module operable to compute a vector norm for each receiver antenna of said one or more receiver antennas, said module further operable to select a first antenna of said one or more antennas having a largest vector norm to receive at least one complex value symbol from said one or more transmitter antennas.
Dependencies are inferred from the claim text.