US 12,003,480 B1 · Efficient emergency communications fallback

Abstract

The authorized IP addresses configured at components in an IMS network may become out of sync with a first pool of IP addresses provided by a core network to UEs. This may result in emergency communications being received at the IMS network from a UE using a first IP address of the first pool of IP addresses that is not recognized by the IMS network. A session management component of the core network may automatically assign a second IP address from a second pool of IP addresses based on determining the session management component has not received an update notification from the IMS network within a threshold time (e.g., 500 milliseconds, 1000 milliseconds, etc.) from transmitting a request to establish a packet data communications session to the IMS network using the first IP address. The IMS network may then receive packets from the second IP address.

Claims20

Dependent claims

A method performed by a one or more computing devices configured in a wireless communications network, the method comprising:

associating, by a first component of a core network associated with an Internet protocol (IP) multimedia system (IMS), a first IP address with a user equipment (UE), wherein the first IP address is associated with a first pool of IP addresses;
providing, by a second component of the core network, a first communications request comprising the first IP address associated with the UE to the IMS;
determining, by the second component of the core network and based at least in part on not receiving an update notification from the IMS within a threshold amount of time from providing the first communication request to the IMS, the first IP address is not represented in a set of IP addresses configured at the IMS;
based at least in part on determining that first IP address is not represented in the set of IP addresses configured at the IMS, associating a second IP address with the UE, wherein the second IP address is associated with a second pool of IP addresses different from the first pool of IP addresses;
and
providing, by the second component of the core network, a second communication request comprising the second IP address associated with the UE to the IMS.

3 more elements

A network computing device configured at a wireless communications network, the network computing device comprising:

one or more processors;
one or more transceivers;
and
non-transitory computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
associating, by a first component of a core network associated with an Internet protocol (IP) multimedia system (IMS), a first IP address with a user equipment (UE), wherein the first IP address is associated with a first pool of IP addresses;
providing, by a second component of the core network, a first communications request comprising the first IP address associated with the UE to the IMS;
determining, by the second component of the core network and based at least in part on not receiving an update notification from the IMS within a threshold amount of time from providing the first communication request to the IMS, the first IP address is not represented in a set of IP addresses configured at the IMS;
based at least in part on determining that first IP address is not represented in the set of IP addresses configured at the IMS, associating a second IP address with the UE, wherein the second IP address is associated with a second pool of IP addresses different from the first pool of IP addresses;
and
providing, by the second component of the core network, a second communication request comprising the second IP address associated with the UE to the IMS.

7 more elements

A non-transitory computer-readable media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

associating, by a first component of a core network associated with an Internet protocol (IP) multimedia system (IMS), a first IP address with a user equipment (UE), wherein the first IP address is associated with a first pool of IP addresses;
providing, by a second component of the core network, a first communications request comprising the first IP address associated with the UE to the IMS;
determining, by the second component of the core network and based at least in part on not receiving an update notification from the IMS within a threshold amount of time from providing the first communication request to the IMS, the first IP address is not represented in a set of IP addresses configured at the IMS;
based at least in part on determining that first IP address is not represented in the set of IP addresses configured at the IMS, associating a second IP address with the UE, wherein the second IP address is associated with a second pool of IP addresses different from the first pool of IP addresses;
and
providing, by the second component of the core network, a second communication request comprising the second IP address associated with the UE to the IMS.

3 more elements

Dependencies are inferred from the claim text.

Efficient emergency communications fallback

Life of this patent

Efficient emergency communications fallback

Life of this patent

Abstract

Claims20