Providing a location service in a wireless communications network using an indication of whether the location service is an emergency-related location service or a law enforcement-related location service

• US 7,738,855 B2
• Filed: 03/12/2004
• Issued: 06/15/2010
• Est. Priority Date: 03/14/2003
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Wang, Chung-Ching, Jang, Ke-Chi, Denman, Robert E.
• Primary Examiner(s): Bost, Dwayne
• Assistant Examiner(s): DESIR, PIERRE LOUIS
• Application Number:
  US10/800,055
• Publication Number:
  US 20040180655A1
• Time in Patent Office: 2,286 Days
• Field of Search: 455/433, 455/434, 455/404.2, 455/414, 455/456, 455/432, 455/457, 455/432.1, 455/456.1, 455/456.2, 455/456.3, 455/414.2, 455/414.1, 370/342, 342/357.1, 342/357.08, 342/357.09
• US Class Current: 455/404.1
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

In a wireless communications network, a method of performing a location service with respect to a mobile station includes communicating a paging message containing an indication of whether the paging message is related to at least one of an emergency-related location service and a law enforcement-related location service. In another aspect, a mobile station in a wireless communications network communicates messaging to move the mobile station to a traffic channel in response to a callback by at least one of an emergency services entity and a law enforcement entity. The mobile station also receives a location request on the traffic channel, the location request containing an indication of whether the location request is related to at least one of an emergency-related location service and a law enforcement-related location service.

Claims

1. A method of performing a location service with respect to a mobile station, comprising:

communicating, by a base station to the mobile station, a paging message containing an indication of whether the paging message is related to at least one of an emergency-related location service and a law enforcement-related location service, the indication having a first state to indicate that the paging message is related to at least one of the emergency-related location service and the law enforcement-related location service, wherein the paging message is one of a general page message (GPM) containing the indication and a universal page message (UPM) containing the indication;

receiving information regarding the location of the mobile station,

wherein communicating the paging message comprises sending the paging message containing a first information element to identify service option 35 or service option 36, and a second information element to indicate whether the paging message is related to the emergency-related location service or law enforcement-relate location service; and

the base station setting a state of the second information element based on a state of a field in a paging request from a mobile switching center indicating whether the paging request is related to the emergency-related location service or the law enforcement-related service.

2. A method of performing a location service with respect to a mobile station, comprising:

communicating a paging message in a mobile communications network containing an indication of whether the paging message is related to at least one of an emergency-related location service and a law enforcement-related location service;

communicating information regarding the location of the mobile station, wherein communicating the paging message comprises sending a paging request containing the indication from a mobile switching center to a base station;

the mobile switching center receiving a position request containing a field indicating whether the position request is related to at least one of the emergency-related location service and the law enforcement-related location service; and

the mobile switching center setting a state of the indication in the paging request based on the field contained in the position request.

3. The method of claim 2, wherein receiving the position request comprises receiving an InterSystemPositionRequest INVOKE (JSPOSREQ) mes sage containing a CTYP field, the CTYP field indicating whether the position request is related to at least one of the emergency-related location service and the law enforcement-related location service.

4. A method of performing a location service with respect to a mobile station, comprising:

communicating, by a base station to the mobile station, a paging message containing an indication of whether the paging message is related to at least one of an emergency-related location service and a law enforcement-related location service, the indication having a first state to indicate that the paging message is related to at least one of the emergency-related location service and the law enforcement-related location service;

receiving information regarding the location of the mobile station; and

sending a position determination data message (PDDM) containing an indication of whether the PDDM is related to at least one of an emergency-related location service and a law enforcement-related location service.

5. The method of claim 4, wherein sending the PDDM message comprises sending an TIA/EJA/IS-SOl PDDM message.

6. The method of claim 4, further comprising:

receiving a position request containing a field indicating whether the position request is related to at least one of the emergency-related location service and the law enforcement-related location service; and

setting a state of the indication in the PDDM based on a state of the field in the position request.

7. The method of claim 6, wherein receiving the position request containing the field comprises receiving a GeoPositionRequest INVOKE (GPOSREQ) message containing a CTYP field.