Adding multi-system functionalities to legacy navigation satellite system receivers
First Claim
1. A method for determining a position of a navigation receiver, the method comprising:
- receiving a first navigation signal from a first global navigation satellite system (GNSS) at a radio frequency (RF) chip coupled to a navigation host chip included in the navigation receiver;
receiving a second navigation signal from a second GNSS at the RF chip, where the second GNSS is a different type of GNSS than the first GNSS;
synchronizing measurement time for digitized data from the second navigation signal with the measurement time for digitized data from the first navigation signal; and
using the synchronized measurement data obtained from both the first navigation signal and the second navigation signal to calculate position of the navigation receiver.
4 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatuses are disclosed for enabling a satellite-based navigation signal receiver to support multiple types of global navigation satellite systems (GNSS). A legacy GNSS receiver can support a plurality of GNSS types by software upgrade and with a new/modified radio frequency (RF) chip. There is no need to completely redesign a navigation host chip to support the multiple GNSS types. This invention offers a cost-efficient multi-GNSS solution without sacrificing the navigation performance. A GNSS baseband controller controls synchronization of measurement time for digitized data along a first signal processing path for a legacy GNSS signal and a second signal processing path for a non-legacy GNSS signal.
-
Citations
26 Claims
-
1. A method for determining a position of a navigation receiver, the method comprising:
-
receiving a first navigation signal from a first global navigation satellite system (GNSS) at a radio frequency (RF) chip coupled to a navigation host chip included in the navigation receiver; receiving a second navigation signal from a second GNSS at the RF chip, where the second GNSS is a different type of GNSS than the first GNSS; synchronizing measurement time for digitized data from the second navigation signal with the measurement time for digitized data from the first navigation signal; and using the synchronized measurement data obtained from both the first navigation signal and the second navigation signal to calculate position of the navigation receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 23, 24)
-
-
14. A navigation receiver, comprising:
-
a radio frequency (RF) chip receiving a first navigation signal from a first global navigation satellite system (GNSS), and, a second navigation signal from a second GNSS, where the second GNSS is a different type of GNSS than the first GNSS; and a navigation host chip coupled to the RF chip, wherein the navigation host chip synchronizes measurement time for digitized data from the second navigation signal with the measurement time for digitized data from the first navigation signal; and
, uses the synchronized measurement data obtained from both the first navigation signal and the second navigation signal to calculate position of the navigation receiver. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 25, 26)
-
Specification