Error vector magnitude for transmit diversity
AssigneeLenovo (Singapore) Pte. Ltd.
InventorColin Frank
Life of this patent
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Abstract
Various aspects of the present disclosure relate to a communication device that includes a transceiver, a set of transmit antennas (e.g., more than two transmit antennas), and a set of antenna connectors. Each of the antenna connectors couple a signal from the transceiver to a respective one of the transmit antennas. The communication device also includes a processor to cause the communication device to output a respective error vector magnitude (EVM) measurement value associated with each respective antenna connector for a determination of EVM for a transmit diversity of the set of transmit antennas.
Claims20
A user equipment (UE) for wireless communication, comprising:
- a transceiver;
- a set of transmit antennas;
- a set of antenna connectors, each of one or more antenna connectors of the set of antenna connectors configured to couple a signal from the transceiver to a respective transmit antenna of the set of transmit antennas;
- and
- at least one processor coupled with at least one memory and operable to cause the UE to output respective error vector magnitude (EVM) measurement values associated with the one or more antenna connectors, wherein an EVM for a transmit diversity of the set of transmit antennas is based at least in part on a first summation of products of the respective EVM measurement values and respective power measurements associated with the one or more antenna connectors divided by a second summation of the respective power measurements associated with the one or more antenna connectors.
A user equipment (UE) for wireless communication, comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and operable to cause the UE to:
- receive, at a set of antenna connectors, a signal communicated from a transceiver to a set of transmit antennas, wherein the set of antenna connectors is configured to couple the signal from the transceiver to respective transmit antennas of the set of transmit antennas;
- and
- output respective error vector magnitude (EVM) measurement values associated with one or more antenna connectors of the set of antenna connectors, wherein an EVM for a transmit diversity of the set of transmit antennas is based at least in part on a first summation of products of the respective EVM measurement values and respective power measurements associated with the one or more antenna connectors divided by a second summation of the respective power measurements associated with the one or more antenna connectors.
A method performed by a user equipment (UE), the method comprising:
- receiving, at a set of antenna connectors, a signal communicated from a transceiver to a set of transmit antennas, wherein the set of antenna connectors is configured to couple the signal from the transceiver to respective transmit antennas of the set of transmit antennas;
- and
- outputting respective error vector magnitude (EVM) measurement values associated with one or more antenna connectors of the set of antenna connectors, wherein an EVM for a transmit diversity of the set of transmit antennas is based at least in part on a first summation of products of the respective EVM measurement values and respective power measurements associated with the one or more antenna connectors divided by a second summation of the respective power measurements associated with the one or more antenna connectors.
A processor for wireless communication, comprising:
- at least one controller coupled with at least one memory and operable to cause the processor to:
- receive, at a set of antenna connectors, a signal communicated from a transceiver to a set of transmit antennas, wherein the set of antenna connectors is configured to couple the signal from the transceiver to respective transmit antennas of the set of transmit antennas;
- and
- output respective error vector magnitude (EVM) measurement values associated with one or more antenna connectors of the set of antenna connectors, wherein an EVM for a transmit diversity of the set of transmit antennas is based at least in part on a first summation of products of the respective EVM measurement values and respective power measurements associated with the one or more antenna connectors divided by a second summation of the respective power measurements associated with the one or more antenna connectors.
Dependencies are inferred from the claim text.