Method and apparatus for providing network support for a wireless emergency call
First Claim
1. A method suitable for providing network support for CDMA assisted-GPS and/or AFLT during emergency calls, the method comprising:
- receiving at a mobile position center an origination request for an emergency call from a mobile station;
determining if a mobile position capability parameter is available for the emergency call;
if the mobile position capability parameter is not available, an MPC sending a geoposition request to a position determining entity, the geoposition request lacking the mobile position capability parameter;
receiving the geoposition request lacking the mobile position capability parameter by the position determining entity;
sending a request to the mobile station to determine position capabilities in accord with a selected geographic position determination technique;
receiving a response from the mobile station;
determining the location of the mobile station according to the selected geographic position determination technique if the response indicates that the mobile station accepted the request; and
, determining the location of the mobile station according to an alternative geographic position determination technique if the response indicates that the mobile station rejected the request.
3 Assignments
0 Petitions
Accused Products
Abstract
A system is provided to allow a network to obtain the location of a mobile station (e.g. mobile phone) having AGPS/AFLT CDMA capability during an emergency call—without the use of the MPCAP parameter. The MPC invokes the PDE, which is IS-801 AGPS capable, without the MPCAP parameter. The PDE then queries the mobile for its geolocation capabilities, in the absence of the MPCAP parameter. This allows a visited network (e.g. the network in which the mobile station is roaming) to obtain a position (based on IS-801 AGPS/AFLT) for roaming mobile stations that are CDMA AGPS/AFLT capable—without the use of the network MPCAP parameter.
68 Citations
22 Claims
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1. A method suitable for providing network support for CDMA assisted-GPS and/or AFLT during emergency calls, the method comprising:
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receiving at a mobile position center an origination request for an emergency call from a mobile station;
determining if a mobile position capability parameter is available for the emergency call;
if the mobile position capability parameter is not available, an MPC sending a geoposition request to a position determining entity, the geoposition request lacking the mobile position capability parameter;
receiving the geoposition request lacking the mobile position capability parameter by the position determining entity;
sending a request to the mobile station to determine position capabilities in accord with a selected geographic position determination technique;
receiving a response from the mobile station;
determining the location of the mobile station according to the selected geographic position determination technique if the response indicates that the mobile station accepted the request; and
,determining the location of the mobile station according to an alternative geographic position determination technique if the response indicates that the mobile station rejected the request. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus suitable for providing network support for CDMA assisted-GPS and/or AFLT during emergency calls, the apparatus comprising:
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means for receiving, at a mobile position center, an origination request for an emergency call from a mobile station;
means for determining if a mobile position capability parameter is available for the emergency call;
means for sending a geoposition request to a position determining entity if the mobile position capability parameter is not available, the global positioning request lacking the mobile position capability parameter;
means for receiving a geoposition request at a PDE without the mobile position capability parameter at the position determining entity;
means for sending a request to the mobile station to determine position capabilities in accord with a selected geographic position determination technique;
means for receiving a response from the mobile station;
means for determining the location of the mobile station according to the selected geographic position determination technique if the response indicates that the mobile station accepted the request; and
,means for determining the location of the mobile station according to an alternative geographic position determination technique if the response indicates that the mobile station rejected the request. - View Dependent Claims (8, 9, 10, 11, 12, 17)
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13. A method suitable for providing network support for CDMA assisted-GPS and/or AFLT during emergency calls, the method comprising:
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receiving at a mobile position center an origination request for an emergency call from a mobile station;
sending from the mobile position center, a geoposition request to a position determining entity;
receiving a geoposition request by the position determining entity;
sending a request to the mobile station to determine position capabilities in accord with a selected geographic position determination technique by the position determining entity;
receiving a response from the mobile station by the position determining entity;
determining the location of the mobile station according to the selected geographic position determination technique by the position determining entity if the response indicates that the mobile station accepted the request; and
,determining the location of the mobile station according to an alternative geographic position determination technique if the response indicates that the mobile station rejected the request. - View Dependent Claims (14, 15, 16)
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18. A system suitable for providing network support for CDMA assisted-GPS and/or AFLT during emergency calls, the system comprising:
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means for receiving at a mobile position center an origination request for an emergency call from a mobile station;
means for sending a geoposition request to a position determining entity;
means for receiving a geoposition request from the mobile positioning center;
means for sending a request to the mobile station to determine position capabilities in accord with a selected geographic position determination technique;
means for receiving a response from the mobile station;
means for determining the location of the mobile station according to the selected geographic position determination technique if the response indicates that the mobile station accepted the request; and
,means for determining the location of the mobile station according to an alternative geographic position determination technique if the response indicates that the mobile station rejected the request. - View Dependent Claims (19, 20, 21, 22)
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Specification