Methods and systems for processing a global navigation satellite system signal

• US 10,193,674 B2
• Filed: 12/07/2016
• Issued: 01/29/2019
• Est. Priority Date: 12/18/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Wu, Jie, Hoang, Duong, Motamed, Mariam
• Primary Examiner(s): O Connor, Brian T
• Application Number:
  US15/371,602
• Publication Number:
  US 20170180094A1
• Time in Patent Office: 783 Days
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G01S 19/21 Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
• CPC Class Codes: H04K 2203/16 for telephony
• CPC Class Codes: H04K 3/228 Elimination in the received signal of jamming or of data corrupted by jamming interference suppression in receivers H04B1/10
• CPC Class Codes: H04K 3/41 characterized by the control of the jamming activation or deactivation time control of jamming activation and deactivation time only for the purpose of alternating between jamming mode and target monitoring mode H04K3/45
• CPC Class Codes: H04K 3/42 characterized by the control of the jamming frequency or wavelength
• CPC Class Codes: H04K 3/84 related to preventing electromagnetic interference in petrol station, hospital, plane or cinema
• CPC Class Codes: H04K 3/90 related to allowing or preventing navigation or positioning, e.g. GPS
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA

Abstract

Disclosed are methods, systems and devices for addressing a jammer signal transmitted by a device that effects a signal received at a receiver. In a particular embodiment, an application content signal is encoded for transmission in a wireless transmission medium to provide symbol content where the symbol content comprises at least some symbols representing the application content signal. A receiver may be selectively blanked synchronized with at least a portion of the symbol content.

Claims

1. A method, at a mobile device, comprising:

transmitting an uplink signal in a wireless communication link; and

selectively blanking a satellite positioning system (SPS) receiver synchronized with a portion of content in the transmitted uplink signal, wherein the portion of content in the transmitted uplink signal comprises a demodulation reference signal (DMRS) symbol or a sounding reference signal (SRS) symbol.

2. The method of claim 1, wherein selectively blanking the SPS receiver further comprises applying a blanking signal to a terminal of the SPS receiver.

3. The method of claim 1, wherein the content in the transmitted uplink signal comprises application content and channel specific symbols.

4. The method of claim 1, wherein selectively blanking the SPS receiver synchronized with the portion of content in the transmitted uplink signal comprises applying a voltage to a terminal of the SPS receiver.

5. The method of claim 4, wherein the voltage is applied at a lead time before transmission of the portion of content by radio frequency circuitry.

6. The method of claim 1, wherein the uplink signal is transmitted in a frequency division duplexing (FDD) wireless communication link.

7. The method of claim 1, wherein the uplink signal is transmitted in a wireless local area network or wireless personal area communication link, or a combination thereof.

8. The method of claim 1, wherein selectively blanking comprises selectively blanking based, at least in part, on a particular channel or frequency band of the uplink signal.

9. The method of claim 1, wherein the SPS receiver is capable of processing SPS signals transmitted from a plurality of different GNSS bands, and wherein selectively blanking comprises selectively blanking at least one of the GNSS bands while not blanking at least one other one of the GNSS bands.

10. A mobile device comprising:

a satellite positioning system (SPS) receiver to acquire SPS signals; and

a modem device configured to;

encode content for transmission in an uplink signal in a wireless communication link; and

generate a signal to blank the SPS receiver synchronized with a portion of the content wherein the portion of content in the transmitted uplink signal comprises a demodulation reference signal (DMRS) symbol or a sounding reference signal (SRS) symbol.

11. The mobile device of claim 10, wherein the modem device is further configured to selectively blank the SPS receiver by applying a blanking signal to a terminal of the SPS receiver.

12. The mobile device of claim 10, wherein the content in the transmitted uplink signal comprises application content and channel specific symbols.

13. The mobile device of claim 10, wherein selectively blanking the SPS receiver synchronized with the portion of content in the transmitted uplink signal comprises applying a voltage to a terminal of the SPS receiver.

14. The mobile device of claim 13, wherein the voltage is applied at a lead time before transmission of the portion of content by radio frequency circuitry.

15. The mobile device of claim 10, wherein the uplink signal is transmitted in a frequency division duplexing (FDD) wireless communication link.

16. The mobile device of claim 10, wherein the uplink signal is transmitted in a wireless local area network or wireless personal area communication link, or a combination thereof.

17. The mobile device of claim 10, wherein the modem device is configured to selectively blank based, at least in part, on a particular channel or frequency band of the uplink signal.

18. The mobile device of claim 10, wherein the SPS receiver is capable of processing SPS signals transmitted from a plurality of different global navigation satellite system (GNSS) bands, and wherein the modem device is further configured to selectively blank at least one of the GNSS bands while not blanking at least one other one of the GNSS bands.

19. A mobile device, comprising:

means for transmitting an uplink signal in a wireless communication link; and

means for selectively blanking a satellite positioning system (SPS) receiver synchronized with a portion of content in the transmitted uplink signal, wherein the portion of content in the transmitted uplink signal comprises a demodulation reference signal (DMRS) symbol or a sounding reference signal (SRS) symbol.

20. The mobile device of claim 19, wherein the means for selectively blanking the SPS receiver further comprises means for applying a blanking signal to a terminal of the SPS receiver.

21. The mobile device of claim 19, wherein the means for selectively blanking the SPS receiver synchronized with the portion of content in the transmitted uplink signal comprises means for applying a voltage to a terminal of the SPS receiver.

22. The mobile device of claim 19, wherein the means for selectively blanking comprises means for selectively blanking based, at least in part, on a particular channel or frequency band of the uplink signal.

23. A non-transitory storage medium comprising computer-readable instructions stored thereon which are executable by one or more processors of a mobile device to:

encode content for transmission in an uplink signal in a wireless communication link; and

generate a signal to blank an SPS receiver synchronized with a portion of the content wherein the portion of content in the transmitted uplink signal comprises a demodulation reference signal (DMRS) symbol or a sounding reference signal (SRS) symbol.

24. The non-transitory storage medium of claim 23, wherein the content in the transmitted uplink signal comprises application content and channel specific symbols.

25. The non-transitory storage medium of claim 23, wherein the uplink signal is transmitted in a frequency division duplexing (FDD) wireless communication link.