Handling method after updating of privacy profile of target user equipment

• US 7,962,158 B2
• Filed: 10/09/2004
• Issued: 06/14/2011
• Est. Priority Date: 10/10/2003
• 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: Ge, Zhengkai, Duan, Xiaoqin
• Primary Examiner(s): Kincaid; Lester
• Assistant Examiner(s): Gu; Yu (Andy)
• Application Number:
  US10/556,913
• Publication Number:
  US 20070173253A1
• Time in Patent Office: 2,439 Days
• Field of Search: 455/456, 455/456.5
• US Class Current: 455/456.5
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 8/16 selectively restricting mobility data tracking

Abstract

The present invention discloses a handling method after updating of privacy profile of a target user equipment (UE). When the location service (LCS) system is aware that the privacy profile of a target UE was updated, for every outstanding Location Request against that UE, the location service (LCS) system perform a new privacy check based on the updated privacy profile. If the said location request passes the privacy check, the location service system continues to handle the said location request until the handling process is ended; if the location request fails in the privacy check, the location service system initials a cancellation procedure to the said location request. In accordance with this invention, When the location service (LCS) system is aware that the privacy profile of a target UE was updated, the LCS system will be able to perform a new privacy check for the location request based on the updated privacy profile of the target UE, and implement corresponding processing depending on the result of the privacy check for the location request, e.g. for a location request fails in the privacy check, the LCS system shall initiate a cancellation procedure. In this case, the processing is ended earlier and the system resource is saved.

Claims

1. A handling method after updating of privacy profile of a target UE, the method comprising:

when a location service (LCS) system is aware that a privacy profile of the target UE was updated, for a deferred location request in activated state against the target UE, the deferred location request being from a LCS client requesting for location information of the target UE, the LCS system performing a privacy check based on the updated privacy profile of the target UE,

if the deferred location request passes the privacy check, the LCS system continuing to handle the deferred location request;

otherwise, if the deferred location request does not pass the privacy check, the LCS system initializing a cancellation procedure to the deferred location request,

wherein the deferred location request is a UE available event location request, and initiating the cancellation procedure comprises the steps of;

a Gateway Mobile Location Center (GMLC) of the LCS system sending to a Core Network (CN) a request for cancelling the deferred location request, the cancellation request carrying an identification of the UE available event location request;

the CN deleting saved information corresponding to the UE available event location request in accordance with the received identification of the UE available event location request, and then sending to the GMLC a message of acknowledgement of the cancellation of the UE available event location request;

the GMLC deleting saved information corresponding to the UE available event location request in accordance with the identification of the UE available event location request upon receiving the acknowledgement message from the CN.

2. A method according to claim 1, wherein, when there are more than one deferred location request against the target UE in activated state, for each of the deferred location request in activated state, performing by the LCS system the privacy check.

3. A method according to claim 1, wherein performing a privacy check comprises:

for the deferred location request, the LCS system comparing saved information of the deferred location request with the updated privacy profile of the target UE, deciding whether the saved information of the deferred location request satisfies a condition of the target UE'"'"'s updated privacy profile to allow the location information of the target UE to be provided to the LCS client, if the condition to allow the location information of the target UE to be provided to the client is satisfied, the deferred location request passing the privacy check;

otherwise, if the condition is not satisfied, the location request not passing the privacy check.

4. A method according to claim 1, the method further comprising:

the GMLC sending to the LCS client a notification for notifying the cancellation of the UE available event location request.

5. A method according to claim 1, wherein the procedure of the location service system is aware that the privacy profile of the target UE was updated comprises:

a Privacy Profile Register (PPR) sending to a GMLC of the LCS system an LCS Privacy Profile Update Notification.

6. A method according to claim 5, after the PPR sends the LCS Privacy Profile Update Notification, the method further comprising:

the GMLC returning to the PPR an LCS Privacy Profile Update Notification ACK.

7. A method according to claim 1, the method further comprising:

the LCS system sending to the LCS client a notification of the cancellation of the deferred location request.

8. A method according to claim 1, wherein, if the LCS client is allowed to have the location information of the target UE, the deferred location request passes the privacy check;

if the LCS client is not allowed to have the location information of the target UE, the deferred location request does not pass the privacy check.

9. The method according to claim 1, wherein the privacy profile of the target UE is stored in a mobile location centre or a privacy profile register (PPR) of the location system.

10. A handling method after updating of privacy profile of a target UE, the method comprising:

when a location service (LCS) system is aware that a privacy profile of the target UE was updated, for a deferred location request in activated state against the target UE, the deferred location request being from a LCS client requesting for location information of the target UE, the LCS system performing a privacy check based on the updated privacy profile of the target UE,

if the deferred location request passes the privacy check, the LCS system continuing to handle the deferred location request;

otherwise, if the deferred location request does not pass the privacy check, the LCS system initializing a cancellation procedure to the deferred location request,

wherein the deferred location request is a change of area event deferred location request, and the initiating the cancellation procedure to the deferred local request comprises the steps of;

a Gateway Mobile Location Center (GMLC) initiating to a Core Network (CN) a request for cancelling the change of area event location request, the request for cancelling carrying an identification of the change of area event location request, and the CN sending to the target UE a cancellation request carrying the identification of change of area event location request;

the target UE deleting information saved in the target UE corresponding to the change of area event location request in accordance with the identification of the change of area event location request upon the reception of the cancellation request from the CN, and sending to the CN a message of acknowledgement of the cancellation of the change of area event location request, and the CN forwarding to the GMLC the acknowledgement message for notifying the cancellation the change of area event location request;

the GMLC deleting saved information corresponding to the change of area event location request in accordance with the identification of the change of area event location request upon receiving the acknowledge message from the CN.

11. A method according to claim 10, the method further comprising:

the GMLC sending to the LCS client a notification of the cancellation of the change of area event deferred location request.

12. A method according to claim 10, wherein, when there are more than one deferred location request against the target UE in activated state, for each of the deferred location request in activated state, performing by the LCS system the privacy check.

13. A method according to claim 10, wherein performing a privacy check comprises:

for the deferred location request, the LCS system comparing saved information of the deferred location request with the updated privacy profile of the target UE, deciding whether the saved information of the deferred location request satisfies a condition of the target UE'"'"'s updated privacy profile to allow the location information of the target UE to be provided to the LCS client, if the condition to allow the location information of the target UE to be provided to the client is satisfied, the deferred location request passing the privacy check;

otherwise, if the condition is not satisfied, the location request not passing the privacy check.

14. A method according to claim 10, wherein the procedure of the LCS system is aware that the privacy profile of the target UE was updated comprises:

a Privacy Profile Register (PPR) sending to a GMLC of the LCS system an LCS Privacy Profile Update Notification.

15. A method according to claim 14, after the PPR sends the LCS Privacy Profile Update Notification, the method further comprising:

the GMLC returning to the PPR an LCS Privacy Profile Update Notification ACK.