Coexistence management of GNSS and wireless operations

Patent metadata

Field	Value
Publication number	US-10412752-B2
Application number	US-201715402045-A
Country	US
Kind code	B2
Filing date	Jan 9, 2017
Priority date	Jul 26, 2016
Publication date	Sep 10, 2019
Grant date	Sep 10, 2019

Abstract

Methods, systems, computer-readable media, and apparatuses for to managing use of a satellite positions system (SPS) receiver in conjunction with one or more radio access technology (RAT) transmitters. In certain embodiments, a controller can be used to prioritize reception by the SPS receiver over transmission by the one or more RAT transmitters.

First claim

What is claimed is:

1. An apparatus, comprising:
an antenna;
a satellite positioning system (SPS) receiver coupled with the antenna;
a radio access technology (RAT) transmitter coupled with the antenna; and
a controller communicatively coupled to the SPS receiver and the RAT transmitter, wherein the controller is configured to:
prioritize reception by the SPS receiver over RAT transmission by the RAT transmitter, by:
(1) determining that the SPS receiver is receiving a first signal via the antenna to determine a location of the SPS receiver; and
(2) in response to determining that the SPS receiver is receiving the first signal via the antenna, inducing the RAT transmitter to either:
(a) delay a second signal from being transmitted by the RAT transmitter via the antenna while the first signal is being received by the SPS receiver via the antenna or the location of the SPS has not been determined; or
(b) transmit the second signal at a low power level via the antenna while the first signal is received by the SPS receiver via the antenna, the low power level determined to allow reception of the first signal by the SPS receiver via the antenna,
wherein the apparatus does not include any hardware component coupled between the antenna and each of the SPS receiver and the RAT transmitter to physically separate the first signal from the second signal.

2. The apparatus of claim 1 , wherein the controller is further configured to select the low power level based on a determination of a strength of the second signal at a receiving station.

3. The apparatus of claim 2 , wherein the controller is further configured to select the low power level based on at least one of: a distance between the apparatus and the station, or a degree of interference experienced by a prior signal transmitted by the apparatus and received at the station.

4. The apparatus of claim 1 , wherein the controller is further configured to select the low power level based on a power level of a signal received from a station.

5. The apparatus of claim 1 , wherein the controller is further configured to:
receive a grant command from a station indicating that the apparatus is granted permission for the transmission; and
upon receiving the grant command, prioritize the reception by the SPS receiver over the transmission by the RAT transmitter.

6. The apparatus of claim 5 , wherein the controller is further configured to inhibit the transmitter from transmitting unless a grant command is received by the controller from a station.

7. The apparatus of claim 5 , wherein the controller is configured to:
in response to determining that there is an overlap between a reception by the SPS receiver and a transmission at the transmitter, disregard positioning information derived from a portion of the reception that overlaps with the transmission.

8. The apparatus of claim 1 , wherein the controller is configured to induce the transmitter to:
delay the second signal from being transmitted while the first signal is received by the SPS receiver or a location of the SPS has not been determined; and
not transmit the second signal while the first signal is received by the SPS receiver.

9. The apparatus of claim 1 , wherein the controller is configured to induce the transmitter to:
transmit the second signal at the low power level while the first signal is received by the SPS receiver; and
not delay the second signal from being transmitted while the first signal is received by the SPS receiver or a location of the SPS has not been determined.

10. The apparatus of claim 1 , wherein the controller is configured to:
determine whether the transmission by the RAT transmitter is prioritized over the reception by the SPS receiver; and
in response to determining that the transmission by the RAT transmitter is prioritized over the reception by the SPS receiver:
(1) induce the transmitter to transmit the second signal; and
(2) either:
(a) blank the SPS receiver from deriving positioning information based on the reception; or
(b) power down the SPS receiver.

11. The apparatus of claim 10 , wherein the determining of whether to blank the SPS receiver or power down the SPS receiver is based on a temporal length of a transmission by the transmitter.

12. The apparatus of claim 1 , wherein the RAT is a wireless wide area network (WWAN).

13. The apparatus of claim 1 , wherein the controller is integrated onto a same integrated circuit die as either the SPS receiver or the transmitter.

14. The apparatus of claim 1 , wherein the apparatus does not include a filter, a switch, or a diplexer coupled between the antenna and each of the SPS receiver and the RAT transmitter to physically separate the first signal from the second signal.

15. A method, comprising:
prioritizing reception by a satellite positioning system (SPS) receiver over a radio access technology (RAT) transmission by a RAT transmitter, by:
(1) determining that the SPS receiver is receiving a first signal via an antenna to determine a location of the SPS receiver; and
(2) in response to determining that the SPS receiver is receiving the first signal via the antenna, inducing the RAT transmitter to either:
(a) delay a second signal from being transmitted by the RAT transmitter via the antenna while the first signal is received by the SPS receiver via the antenna and the location of the SPS has not been determined; or
(b) transmit the second signal at a low power level via the antenna while the first signal is received by the SPS receiver via the antenna, the low power level determined to allow reception of the first signal by the SPS receiver via the antenna,
wherein a signal path between the antenna and each of the SPS receiver and the RAT transmitter does not include any hardware component to physically separate the first signal from the second signal.

16. The method of claim 15 , wherein the low power level is selected based on a determination of a strength of the second signal at a receiving station.

17. The method of claim 16 , wherein the low power level is selected based on at least one of: a distance between the antenna and the station, or a degree of interference experienced by a prior signal transmitted by the antenna and received at the station.

18. The method of claim 15 , wherein the low power level is selected based on a power level of a signal received from a station.

19. The method of claim 15 , further comprising:
receiving a grant command from a station indicating that a permission is granted for the transmission; and
upon receiving the grant command, prioritizing the reception by the SPS receiver over the transmission by the RAT transmitter.

20. The method of claim 19 , further comprising:
inhibiting the transmitter from transmitting unless a grant command is received from a station.

21. A non-transitory computer readable medium containing instructions that, when executed by one or more processors, cause the one or more processors to:
prioritize reception by a satellite positioning system (SPS) receiver over a radio access technology (RAT) transmission by a RAT transmitter, by:
(1) determining that the SPS receiver is receiving a first signal via an antenna to determine a location of the SPS receiver; and
(2) in response to determining that the SPS receiver is receiving the first signal via the antenna, inducing the RAT transmitter to either:
(a) delay a second signal from being transmitted by the RAT transmitter via the antenna while the first signal

Assignees

• Qualcomm Inc

Inventors

• Wu Jie
• Hsu Chun-Hao
• Zhao Liang
• Subrahmanya Parvathanathan
• Mahajan Amit
• Pant Nitin
• Vanghi Vieri

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/566

  of the information or information source or recipient · CPC title

• H04W72/56

  based on priority criteria · CPC title

• H04B1/3805

  with built-in auxiliary receivers · CPC title

• H04B1/525

  with means for reducing leakage of transmitter signal into the receiver · CPC title