Dynamic antenna switching

摘要

Dynamic antenna switching based on weighted signal to noise ratio (SNR). A wireless device may include multiple antennas. SNR at each active antenna may be calculated. An antenna-specific weight may be applied to each antenna's SNR. The antenna-specific weights may further be radio specific and/or transmit or receive specific in some cases. Antenna selection (possibly just for a specific radio and/or for transmit or receive operations, depending on the specificity of the antenna weights), including potentially switching which antenna is used, may be based on the resulting weighted SNR values for each antenna. If the antenna-specific weights are radio specific and/or transmit or receive operation specific, the method may be performed multiple times with different antenna-specific weights to select antenna(s) for different radios and/or for other operations.

主权项

1. A wireless user equipment (UE) device, comprising:
a plurality of antennas; a plurality of radios; and antenna switching logic coupled to the plurality of radios and the plurality of antennas; wherein the antenna switching logic is configured to:
calculate signal-to-noise ratio (SNR) of receive frames on each active antenna of the plurality of antennas; and for each respective radio of the plurality of radios:
calculate a receive-weighted SNR for each active antenna using a respective receive-specific set of antenna weights; andselect one or more antennas for use by the respective radio for reception based on the receive-weighted SNR for each active antenna.