Apparatus and method for sensor-based wireless receive diversity

摘要

An apparatus and method are disclosed for achieving receiver diversity. A wireless unit includes a plurality of antennas, an antenna selector to select one or more antennas from the plurality of antennas, a processor with input data from an inertial sensor for monitoring the orientation of the wireless unit. Based on the input data, the processor commands the antenna selector to select one or more antennas. In one aspect, the processor is a diversity processor. Based on the input data from the inertial sensor, the diversity processor computes the combination of the received signals. In another aspect, the wireless unit further includes a baseband processor to process the output of the diversity processor for a particular unit application.

主权项

1. A wireless unit for implementing antenna selection comprising:
a plurality of antennas for receiving a signal wherein the signal comprises a GNSS (Global Navigational Satellite System) signal and wherein the plurality of antennas comprises a combination of types of antennas comprising a directional antenna and a non-directional antenna, wherein the directional antenna and a non-directional antenna comprise a hemispheric antenna and an isotropic antenna; an antenna selector for selecting one of the directional antenna and the non-directional antenna from the plurality of antennas; an inertial sensor for sensing the orientation of the wireless unit and generating orientation information; and a processor for processing the orientation information and commanding the antenna selector to select the one of the directional antenna and the non-directional antenna from the plurality of antennas based on the orientation information.