LOCATION SERVER, LOCATION CONTROLLER, METHOD AND SYSTEM FOR IMPLEMENTING LOCATION-BASED SERVICE

• US 20110028165A1
• Filed: 10/12/2010
• Published: 02/03/2011
• Est. Priority Date: 04/23/2008
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: NI, Hui
• Granted Patent: US 8,285,306 B2
• Time in Patent Office: Days
• US Class Current: 455/456.2
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

A location server, a location controller, a method and a system for implementing a location-based service are provided. The method includes: receiving a location data request sent by a client; sending a location request message including QoS requirement information to a location controller; sending location information to the client according to a location response returned by the location controller, where the location response includes location measurement information. The location server does not need to directly transmit QoS requirement values sent by the client, but satisfies the service having no specific requirements for QoS of a location result by determining the sent QoS requirement information flexibly. The network can determine the QoS of the location result according to its own location capability. In this way, the network location capability is fully utilized, and at the same time flexibility of a location service QoS requirement is improved.

Claims

1. A method for implementing a location-based service, comprising:

receiving a location data request sent by a client;

sending a location request message to a location controller, wherein the location request message comprises Quality of Service (QoS) requirement information; and

sending location information to the client according to a location response returned by the location controller, wherein the location response comprises location measurement information.

2. The method according to claim 1, wherein after the receiving the location data request sent by the client, the method further comprises determining the QoS requirement information.

3. The method according to claim 2, wherein the determining the QoS requirement information comprises:

obtaining the QoS requirement information according to the location data request comprising the QoS requirement information.

4. The method according to claim 2, wherein the determining the QoS requirement information comprises:

generating the QoS requirement information according to service characteristics of the client, subscription information of a location terminal, or location capability of a network

5. The method according to claim 1, wherein the QoS requirement information comprises at least one of QoS requirement values, QoS requirement ranges, and QoS classes;

the QoS requirement values comprise at least one of vertical precision, horizontal precision, and a location delay;

the QoS requirement ranges comprise lower limits of QoS, or comprise the lower limits of the QoS and upper limits of the QoS; and

the QoS classes comprise best effort QoS and guaranteed QoS.

6. The method according to claim 5, wherein the QoS requirement information comprises:

the QoS requirement values and the QoS classes respectively set for each option of the QoS requirement values.

7. The method according to claim 5, further comprising:

setting the QoS class to the best effort QoS or the guaranteed QoS by default when the QoS requirement information comprises no QoS class.

8. The method according to claim 5, wherein the QoS requirement information comprises the QoS requirement values and the QoS classes, and the sending the location request to the location controller according to the QoS requirement information comprises:

sending the location request consistent with the QoS requirement information to the location controller.

9. The method according to claim 5, wherein the QoS requirement information comprises the QoS requirement values and the QoS classes, and the sending the location request to the location controller according to the QoS requirement information comprises:

sending the location request partially consistent with the QoS requirement information to the location controller.

10. The method according to claim 8, wherein the location response comprises a location indication and a location result, and

if the QoS class is the guaranteed QoS, the sending the location information to the client comprises:

returning a location success indication and the location result to the client when the location result meets the QoS requirement values, and returning a location failure indication to the client when the location result does not meet the QoS requirement values;

if the QoS class is the best effort QoS, the sending the location information to the client comprises;

returning the location success indication and the location result to the client.

11. The method according to claim 8, wherein the location response comprises the location indication and the location result, the QoS requirement ranges comprise the lower limits of the QoS, and the sending the location information to the client comprises:

returning a location success indication and the location result to the client when the location result is not lower than the lower limits of the QoS requirement values, and returning a location failure indication to the client when the location result is lower than the lower limits of the QoS requirement values.

12. The method according to claim 8, wherein the location response comprises the location result and the QoS indication, and the sending the location information to the client is specifically sending the location information to the client according to the QoS indication, and comprises:

if the QoS class is the guaranteed QoS, returning a location success indication and the location result to the client according to a QoS success indication when the location result meets the QoS requirement values, and returning a location failure indication to the client according to a QoS failure indication when the location result does not meet the QoS requirement values;

or

if the QoS class is the best effort QoS, returning a location success indication and the location result to the client according to a QoS success indication.

13. The method according to claim 8, wherein the location response comprises the location result, and the method further comprises:

comparing the QoS of the location result with the QoS requirement values;

wherein the sending the location information to the client comprises;

if the QoS class is the guaranteed QoS, returning a location success indication and the location result to the client when the QoS of the location result meets the QoS requirement values, and returning a location failure indication to the client when the QoS of the location result does not meet the QoS requirement values;

or

if the QoS class is the best effort QoS, returning a location success indication and the location result to the client.

14. The method according to claim 8, wherein the location response comprises the location result, and the method further comprises:

comparing the QoS of the location result with the QoS requirement values;

wherein when the QoS requirement ranges comprise the lower limits of the QoS, the sending the location information to the client comprises;

returning a location success indication and the location result to the client when the QoS of the location result is not lower than the lower limits of the QoS, and returning a location failure indication to the client when the QoS of the location result is lower than the lower limits of the QoS;

or

returning the QoS of the location result to the client when the QoS of the location result does not meet the QoS requirement values.

15. The method according to claim 14, wherein after the returning the QoS of the location result to the client, the method further comprises:

receiving the location data request sent by the client, wherein the location data request comprises information needed for the client to determine the QoS of the location result to meet demand of a current service; and

returning a location data response comprising the location result to the client.

16. A system for implementing a location-based service, comprising a client, a location server, and a location controller, wherein

the client is configured to send a location data request to the location server;

the location server is configured to send a location request message comprising Quality of Service (QoS) requirement information to the location controller after receiving the location data request sent by the client, and send location information to the client according to a location response returned by the location controller, wherein the location response comprises location measurement information; and

the location controller is configured to perform location measurement on a corresponding terminal according to the location request, and return the location response comprising the location measurement information to the location server.

17. A location server, comprising:

a request receiving unit, configured to receive a location data request sent by a client;

a request sending unit, configured to send a location request message comprising Quality of Service (QoS) requirement information to a location controller; and

an information sending unit, configured to send location information to the client according to a location response returned by the location controller, wherein the location response comprises location measurement information.

18. The location server according to claim 17 further comprising:

a QoS determining unit, configured to determine QoS requirement information after the request receiving unit receives the location data request.

19. The location server according to claim 18, wherein the QoS determining unit comprises:

a first determining unit, configured to obtain the QoS requirement information according to the location data request comprising the QoS requirement information.

20. The location server according to claim 18, wherein the QoS determining unit comprises:

a second determining unit, configured to generate the QoS requirement information according to service characteristics of the client, subscription information of a location terminal or location capability of a network.