Methods and systems for on-demand resource allocation for location determination of a mobile device

Patent metadata

Field	Value
Publication number	US-10477340-B2
Application number	US-201815965889-A
Country	US
Kind code	B2
Filing date	Apr 28, 2018
Priority date	Jul 31, 2017
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

Techniques described herein are directed to increasing a quantity of location-related information broadcast by wireless nodes. In one embodiment, a user equipment (UE) sends a request to a wireless node for broadcast of an increased quantity of location-related information for a wireless access type and the wireless node broadcasts the increased quantity of location-related information using the wireless access type. The wireless node may transfer the request to other wireless nodes which may similarly broadcast the increased quantity of location-related information using the wireless access type. The UE may receive the increased quantity of location-related information using the wireless access type and may then obtain location information such as a location estimate for the UE. In some embodiments, the increased quantity of location-related information may comprise a positioning reference signal or location assistance data.

First claim

What is claimed is:

1. A method for supporting location at a user equipment (UE), comprising:
sending to a first wireless node a first request for broadcast of an increased quantity of location-related information, the broadcast based on a wireless access type for the first wireless node;
receiving the increased quantity of location-related information broadcast by the first wireless node, the receiving based at least in part on the wireless access type;
obtaining location information for the UE based, at least in part, on the increased quantity of location-related information; and
sending a second request to the first wireless node for a termination of the broadcast of the increased quantity of location-related information after the location information is obtained.

2. The method of claim 1 , wherein the wireless access type is Fifth Generation (5G), New Radio (NR) or Long Term Evolution (LTE).

3. The method of claim 2 , wherein the location-related information comprises a Positioning Reference Signal (PRS).

4. The method of claim 3 , wherein the increased quantity of location-related information comprises an increased PRS bandwidth, an increased frequency of PRS positioning occasions, an increased duration for a PRS positioning occasion, an increased number of separate PRS signals, a transmission of PRS using an uplink carrier frequency, or any combination thereof.

5. The method of claim 2 , wherein the location-related information comprises location assistance data.

6. The method of claim 5 , wherein the location assistance data comprises assistance data for one or more of: Observed Time Difference Of Arrival (OTDOA), Assisted Global Navigation Satellite System (A-GNSS), Real Time Kinematics (RTK), Precise Point Positioning (PPP), Differential GNSS (DGNSS), or any combination thereof.

7. The method of claim 5 , wherein the increased quantity of location-related information comprises an increased quantity of location assistance data, additional types of location assistance data, an increased frequency of broadcasting of location assistance data, an increased repetition of the broadcasting of location assistance data, or any combination thereof.

8. The method of claim 1 , wherein the first wireless node is a serving wireless node for the UE based on the wireless access type.

9. The method of claim 8 , wherein the first request is sent using a Radio Resource Control (RRC) protocol for the wireless access type.

10. The method of claim 1 and further comprising:
receiving a response from the first wireless node, wherein the response comprises a confirmation of the broadcasting of the increased quantity of location-related information by the first wireless node.

11. The method of claim 1 and further comprising:
receiving an increased quantity of location-related information broadcast by a second wireless node, wherein the increased quantity of location-related information received from the second wireless node is based on the first request and on the wireless access type.

12. The method of claim 1 , wherein the location information for the UE comprises at least one of a location measurement for the first wireless node or a location estimate for the UE.

13. A mobile wireless device comprising:
one or more processors; and
a transceiver, coupled to the one or more processors, configured to:
send to a first wireless node a first request for broadcast of an increased quantity of location-related information, the broadcast based on a wireless access type for the first wireless node;
receive the increased quantity of location-related information broadcast by the first wireless node, the received increased quantity being based at least in part on the wireless access type;
obtain location information for the mobile wireless device based, at least in part, on the increased quantity of location-related information; and
send a second request to the first wireless node for a termination of the broadcast of the increased quantity of location-related information after the location information is obtained.

14. The mobile wireless device of claim 13 , wherein the wireless access type is Fifth Generation (5G), New Radio (NR) or Long Term Evolution (LTE).

15. The mobile wireless device of claim 14 , wherein the location-related information comprises a Positioning Reference Signal (PRS).

16. The mobile wireless device of claim 15 , wherein the increased quantity of location-related information comprises an increased PRS bandwidth, an increased frequency of PRS positioning occasions, an increased duration for a PRS positioning occasion, an increased number of separate PRS signals, a transmission of PRS using an uplink carrier frequency, or any combination thereof.

17. The mobile wireless device of claim 14 , wherein the location-related information comprises location assistance data.

18. The mobile wireless device of claim 17 , wherein the location assistance data comprises assistance data for one or more of: Observed Time Difference Of Arrival (OTDOA), Assisted Global Navigation Satellite System (A-GNSS), Real Time Kinematics (RTK), Precise Point Positioning (PPP), Differential GNSS (DGNSS), or any combination thereof.

19. The mobile wireless device of claim 17 , wherein the increased quantity of location-related information comprises an increased quantity of location assistance data, additional types of location assistance data, an increased frequency of broadcasting of location assistance data, an increased repetition of the broadcasting of location assistance data, or any combination thereof.

20. The mobile wireless device of claim 13 , wherein the first wireless node is a serving wireless node for the mobile wireless device based on the wireless access type.

21. The mobile wireless device of claim 20 , wherein the first request is sent using a Radio Resource Control (RRC) protocol for the wireless access type.

22. The mobile wireless device of claim 13 wherein the one or more processors are further configured to:
receive a response from the first wireless node, wherein the response comprises a confirmation of the broadcasting of the increased quantity of location-related information by the first wireless node.

23. The mobile wireless device of claim 13 wherein the one or more processors are further configured to:
receive an increased quantity of location-related information broadcast by a second wireless node, wherein the increased quantity of location-related information received from the second wireless node is based on the first request and on the wireless access type.

24. The mobile wireless device of claim 13 , wherein the location information comprises at least one of a location measurement for the first wireless node or a location estimate for the mobile wireless device.

25. An apparatus for supporting location at a user equipment (UE), the apparatus comprising:
means for sending to a first wireless node a first request for broadcast of an increased quantity of location-related information, the broadcast based on a wireless access type for the first wireless node;
means for receiving the increased quantity of location-related information broadcast by the first wireless node, the received increased quantity being based at least in part on the wireless access type;
means for obtaining location information for the UE based, at least in part, on the increased quantity of location-related information; and
means for

Assignees

• Qualcomm Inc

Inventors

• Edge Stephen William
• Fischer Sven
• Pon Rayman

Classifications

• H04W48/12

  using downlink control channel · CPC title

• H04W4/20

  Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel · CPC title

• H04W64/00

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• H04W4/02 Primary

  Services making use of location information · CPC title

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title