Method and system for indoor global navigation satellite system detection utilizing low-earth orbit satellite signals
View Patent ↗Methods and systems for indoor global navigation satellite system detection utilizing low Earth orbit satellite signals may comprise receiving low Earth orbit (LEO) RF satellite signals utilizing a LEO satellite signal receiver path (LEO Rx) in a wireless communication device comprising the LEO satellite signal receiver path and a medium Earth orbit satellite signal receiver path (MEO Rx). A received signal strength indicator (RSSI) may be measured for the received LEO signals and an expected received MEO signal strength may be calculated. A power level of the MEO Rx may be configured based on the calculated MEO signal strength by powering down when the calculated expected MEO signal strength is below a threshold level for MEO positioning purposes and/or powered up when it increases above the threshold level. The RSSI may be measured at a plurality of points along the LEO Rx.
1. A method for wireless communication, the method comprising:
in a wireless communication device comprising a low Earth orbit (LEO) satellite signal receiver path and a medium Earth orbit (MEO) satellite signal receiver path:
receiving LEO RF satellite signals utilizing said LEO satellite signal receiver path;
measuring a received signal strength indicator (RSSI) for said received LEO RF satellite signals;
calculating an expected received MEO signal strength based on said measured RSSI;
configuring a power level of said MEO satellite signal receiver path based on said calculated MEO signal strength.
2. The method according to claim 1 , comprising powering down said MEO satellite signal receiver path when said calculated expected MEO signal strength is below a threshold level for MEO positioning purposes.
3. The method according to claim 1 , comprising powering up said MEO satellite signal receiver path when said calculated expected MEO signal strength increases above a threshold level for MEO positioning purposes.
4. The method according to claim 1 , comprising measuring said RSSI at a plurality of points along said LEO satellite signal receiver path.
5. The method according to claim 1 , comprising powering down RF circuitry in said MEO satellite signal receiver path for said configuring of said power level.
6. The method according to claim 1 , comprising powering down clock generation circuitry in said MEO satellite signal receiver path for said configuring of said power level.
7. The method according to claim 1 , comprising powering down processing circuitry in said MEO satellite signal receiver path for said configuring of said power level.
8. The method according to claim 1 , comprising processing in-phase and quadrature signals in said LEO satellite signal receiver path.
9. The method according to claim 1 , comprising processing in-phase and quadrature signals in said MEO satellite signal receiver path.
10. The method according to claim 1 , wherein said wireless communication device is controlled by a reduced instruction set computing (RISC) central processing unit (CPU).
11. A system for wireless communication, the system comprising:
one or more circuits for use in a wireless communication device comprising a low Earth orbit (LEO) satellite signal receiver path and a medium Earth orbit (MEO) satellite signal receiver path, said one or more circuits being operable to:
receive LEO RF satellite signals utilizing said LEO satellite signal receiver path;
measure a received signal strength indicator (RSSI) for said received LEO RF satellite signals;
calculate an expected received MEO signal strength based on said measured RSSI;
configure a power level of said MEO satellite signal receiver path based on said calculated MEO signal strength.
12. The system according to claim 11 , wherein said one or more circuits are operable to power down said MEO satellite signal receiver path when said calculated expected MEO signal strength is below a threshold level for MEO positioning purposes.
13. The system according to claim 11 , wherein said one or more circuits are operable to power up said MEO satellite signal receiver path when said calculated expected MEO signal strength increases above a threshold level for MEO positioning purposes.
14. The system according to claim 11 , wherein said one or more circuits are operable to measure said RSSI at a plurality of points along said LEO satellite signal receiver path.
15. The system according to claim 11 , wherein said one or more circuits are operable to power down RF circuitry in said MEO satellite signal receiver path for said configuring of said power level.
16. The system according to claim 11 , wherein said one or more circuits are operable to power down clock generation circuitry in said MEO satellite signal receiver path for said configuring of said power level.
17. The system according to claim 11 , wherein said one or more circuits are operable to power down processing circuitry in said MEO satellite signal receiver path for said configuring of said power level.
18. The system according to claim 11 , wherein said one or more circuits are operable to process in-phase and quadrature signals in said LEO satellite signal receiver path and/or said MEO satellite signal receiver path.
19. The system according to claim 11 , wherein said wireless communication device is controlled by a reduced instruction set computing (RISC) central processing unit (CPU).
20. A system for wireless communication, the system comprising:
one or more circuits for use in a wireless communication device comprising a medium Earth orbit (MEO) satellite signal receiver path and a low Earth orbit (LEO) satellite signal receiver path, said one or more circuits being operable to:
receive LEO RF satellite signals utilizing said LEO satellite signal receiver path;
measure a received signal strength indicator (RSSI) for said received LEO RF satellite signals;
calculate an expected received MEO signal strength based on said measured RSSI;
powering down circuitry in said MEO satellite signal receiver path when said calculated MEO signal strength falls below a threshold level.