×

METHOD AND APPARATUS FOR RECEIVING NAVIGATION SATELLITE SIGNALS FROM TWO BANDS

  • US 20150198718A1
  • Filed: 03/12/2013
  • Published: 07/16/2015
  • Est. Priority Date: 03/12/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method in a mobile device to multiplex two global navigation satellite system (GNSS) signals on a single hardware receiver chain, the method comprising:

  • generating a control signal indicating a first GNSS signal on a first band during a first period and a second GNSS signal on a second band during a second period;

    generating a first oscillator signal from a local oscillator (LO) during the first period and a second oscillator signal from the LO during the second period based on the control signal;

    mixing, during the first period, the first GNSS signal from an antenna with the first oscillator signal to result in a first down converted signal;

    mixing, during the second period, the second GNSS signal from the antenna with the second oscillator signal to result in a second down converted signal;

    de-multiplexing the first down converted signal during the first period and the second down converted signal during the second period based on the control signal;

    demodulating, during the first period, the first down converted signal; and

    demodulating, during the second period, the second down converted signal;

    wherein the first oscillator signal and the second oscillator signal comprise different frequencies.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×