Emergency call support for VoLTE roaming within S8 home routing architecture
First Claim
Patent Images
1. A method comprising:
- receiving, by a network device of a visited wireless network, an attach request from a wireless device to attach to the visited wireless network;
querying, by the network device for a mobile telephone number of the wireless device, an other network device of a home wireless network of the wireless device, based on the receiving, wherein the visited wireless network is communicatively coupled to the home wireless network of the wireless device;
obtaining, by the network device, the mobile telephone number of the wireless device from the other network device of the home wireless network of the wireless device, based on the querying;
receiving, by the network device, subsequent to an attachment of the wireless device to the visited wireless network, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a visited Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the visited wireless network, and wherein there is not a network-to-network interface between the visited IMS network and a home IMS network of the wireless device; and
providing, by the network device, during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP).
1 Assignment
0 Petitions
Accused Products
Abstract
A method, a device, and a non-transitory storage medium provide an emergency call support service in which a network device of a visited network obtains user profile data of a wireless device from a home network of the wireless device, and provides the user profile data to a location server of the visited network. The emergency call support service allows an emergency call, when initiated by a roaming subscriber of the wireless device via the visited network, to include the user profile data and be provided to a public safety access point.
-
Citations
20 Claims
-
1. A method comprising:
-
receiving, by a network device of a visited wireless network, an attach request from a wireless device to attach to the visited wireless network; querying, by the network device for a mobile telephone number of the wireless device, an other network device of a home wireless network of the wireless device, based on the receiving, wherein the visited wireless network is communicatively coupled to the home wireless network of the wireless device; obtaining, by the network device, the mobile telephone number of the wireless device from the other network device of the home wireless network of the wireless device, based on the querying; receiving, by the network device, subsequent to an attachment of the wireless device to the visited wireless network, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a visited Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the visited wireless network, and wherein there is not a network-to-network interface between the visited IMS network and a home IMS network of the wireless device; and providing, by the network device, during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A network, wherein the network comprises:
a first network device of a visited wireless network comprising; a first communication interface; a first memory, wherein the first memory stores first instructions; and a first processor, wherein the first processor executes the first instructions to; receive, via the first communication interface, an attach request from a wireless device to attach to the first network device; query, via the first communication interface to a second network device of a home wireless network of the wireless device, for a mobile telephone number of the wireless device, wherein the visited wireless network is communicatively coupled to the home wireless network of the wireless device; obtain, via the first communication interface, the mobile telephone number of the wireless device from the second network device of the home wireless network of the wireless device, based on the query; receive, via the first communication interface, subsequent to an attachment of the wireless device, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a visited Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the visited wireless network, and wherein there is not a network-to-network interface between the visited IMS network and a home IMS network of the wireless device; and provide during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP). - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
17. A non-transitory storage medium storing instructions executable by a processor of a device of a visited wireless network to:
-
receive an attach request from a wireless device to attach to the device of the visited wireless network; query, for a mobile telephone number of the wireless device, to an other device of a home wireless network of the wireless device, based on the receipt of the attach request, wherein the visited wireless network is communicatively coupled to the home wireless network of the wireless device; obtain the mobile telephone number of the wireless device from the other device of the home wireless network of the wireless device, based on the query; receive subsequent to an attachment of the wireless device to the visited wireless network, a request to establish an unauthenticated Voice over Long Term Evolution (VoLTE) emergency call, wherein the wireless device is not registered with a visited Internet Protocol Multimedia Subsystem (IMS) network, which is communicatively coupled to the visited wireless network, and wherein there is not a network-to-network interface between the visited IMS network and a home IMS network of the wireless device; and provide during an establishment of the unauthenticated VoLTE emergency call, the mobile telephone number to a public safety access point (PSAP). - View Dependent Claims (18, 19, 20)
-
Specification