Abstract: A device receives a PDN connection request from a UE, and exchanges, with a HSS, authentication and authorization information associated with the UE. The device also constructs an APN FQDN based on the authentication and authorization information, and sends a query, that includes the APN FQDN, to a DNS server. The device further receives, from the DNS server, PGW FQDNs that contain the APN FQDN, and compares the PGW FQDNs with a FQDN associated with a SGW. The device determines, based on the comparison, a PGW, associated with a PGW FQDN that is a closest match to the FQDN associated with the SGW, to be a primary PGW for the PDN connection request. The device also determines, based on the comparison, one or more PGWs, residing within a predetermined distance of the SGW, to be one or more backup PGWs for the PDN connection request.

Abstract: A method including receiving a session request associated with a user equipment (UE); selecting one or more network address pool name lists based on a type of service to be provided to the UE; selecting one or more network address pool names from the one or more network address pool name lists based on a priority associated with the one or more network address pool names; selecting one or more network addresses from the one or more network address pool names; assigning the one or more network addresses to the UE; and establishing a session with the UE.

Abstract: A system includes a first device, in a first network; a second device, in a second network; and a policy rules and charging function (PCRF) database that associates Internet Protocol (IP) addresses assigned to user equipment (UE) devices with PCRF devices; where the first device is to identify a plurality of policy rules and charging function (PCRF) devices in the first network, select a PCRF device from the plurality of PCRF devices based on a selection rule, and provide information about the selected PCRF device to the second device; and where the second device is to receive a request to set up a communication session associated with a UE device; determine an IP address associated with the UE device; identify a PCRF device, based on the determined IP address, by accessing the PCRF database, and send session information associated with the communication session to the identified PCRF device.

Abstract: A server device in a long term evolution (LTE) network may store, in a memory, context information, associated with a prior communication session between the LTE network and a user device, where the context information permits a communication session to be established within a time period, the time period being less than another time period to initially establish the communication session or to establish the communication session without the context information. The server device may further receive a registration request associated with the user device; determine whether the memory stores the context information; perform, within the time period, an abbreviated registration operation to establish the communication session with the user device, using the context information from the memory, when the memory stores the content information; and perform, within the other time period, a registration operation to establish the communication session when the memory does not store the context information.

Abstract: A server device configured to store an Internet protocol (IP) registry, the registry includes information for a user device, the information includes particular identifiers for the user device, an IP address for the user device, and a particular access point name (APN), where the particular APN corresponds to a service, an application, a network, or data used by the user device; receive a query that includes identifiers and an APN; perform, using the IP registry, an operation to identify the information, for the user device, based on the identifiers and the APN; obtain the information for the user device, when the identifiers match the particular identifiers stored in the IP registry and when the APN matches the particular APN stored in the IP registry; and send, to an application server, the information for the user device, where the IP address permits the application server to communicate with the user device.

Abstract: A method and a system provide integrated lawful intercept, for IMS over an Evolved Packet Core (EPC), for both packet data and session initiation protocol (SIP)-based applications. The system includes a device that receives a lawful intercept request from a law enforcement agency, and determines whether a packet data lawful intercept or a SIP-based applications (SBA) lawful intercept is requested by the lawful intercept request. The device also provisions, when a packet data lawful intercept is requested by the lawful intercept request, a policy control and charging rules function (PCRF) and a packet data network (PDN) gateway (PGW) for the packet data lawful intercept. The device further provisions, when a SBA lawful intercept is requested, a proxy call session control function (P-CSCF), a serving-CSCF (S-CSCF), and a session border controller (SBC) for the SBA lawful intercept.

Abstract: A device receives roaming information associated with a user equipment (UE), a current eNodeB conducting a current Internet protocol (IP) session with the UE, and a plurality of eNodeBs that are neighboring the current eNodeB. The device also selects, based on the roaming information and from the plurality of eNodeBs, an optimal eNodeB to which to handover the UE, and establishes a preemptive IP session with the optimal eNodeB. The device further initiates a handover of the current IP session and the UE from the current eNodeB to the optimal eNodeB, where the current eNodeB acts as an anchoring point for a bearer path associated with the UE during the handover.

Abstract: A device receives Internet protocol (IP) traffic flow data from network devices of a wireless network, groups the network devices into sets based on the IP traffic flow data, and estimates, based on the sets, information associated with the network devices. The device also groups the network devices into clusters based on the estimated information, ranks the clusters, and assigns IP address pools to each of the network devices based on the ranked clusters. The device further provides the assigned IP address pools to authorization, authentication, accounting (AAA) devices of the wireless network.

Abstract: A first phone obtains an identifier of a second phone from a phone list, and sends a request for the second phone's Session Initiation Protocol (SIP) type to a remote server. The first phone receives the second phone's SIP type from the remote server, and sends a message to one or more nodes in a network, based on the received second phone's SIP type, for a SIP session between the first phone and the second phone.

Abstract: A network device forwards a Session Initiation Protocol (SIP) setup request from an originating user device toward a destination user device via multiple network elements and intercepts a message-too-large error message sent from one of the multiple network elements to the originating user device. The network device automatically splits the session setup request into smaller SIP messages, where a size of each of the smaller SIP messages is less than or equal to a particular size of message that the network element will accept. The network device then notifies another one of the multiple elements that the session setup request has been split into the smaller SIP messages and sends, via the multiple network elements, the smaller SIP messages toward the destination user device on behalf of the originating device.

Abstract: A device receives code division multiple access (CDMA) capacity/resource information via a first direct interface with a radio network controller (RNC) associated with a CDMA radio access network (RAN), and determines, based on the CDMA capacity/resource information, a capacity associated with the CDMA RAN. The device also determines, based on the CDMA capacity/resource information, a resource availability associated with the CDMA RAN, and determines, based on the capacity and the resource availability associated with the CDMA RAN, a CDMA RAN resource allocation.

Abstract: A method implemented in a mobile device includes identifying a target wireless network for a handover, where the target wireless network uses a different access technology than an existing wireless network being used by the mobile device. The mobile device determines that a signal for the existing wireless network meets an early registration trigger threshold and initiates, based on the determining, an early registration of the mobile device with the target wireless network, where an early registration is performed at a sufficient time prior to the actual handover to preclude a registration delay associated with the handover to the different access technology.

Abstract: Systems and/or methods described herein may include an Internet Protocol (IP) Multimedia Subsystem (IMS) Session Initiation Protocol (SIP) optimization server in communication with network elements within an IMS network. The IMS SIP optimization server may facilitate an end-to-end SIP session between an originating user device and a terminating user device, while sending SIP session information to intermediate network elements in parallel. The IMS SIP optimization server may receive a SIP request from a first network element and send a related SIP request to a last network element. The IMS SIP optimization server may also send customized packet messages to any intermediate network elements, where the intermediate network elements are between the first network element and the last network element in the SIP sequence, and where the customized packet message includes SIP setup commands for each of the intermediate network elements.

Abstract: A method that includes establishing a connection with a default access point, transmitting a request to access or utilize an application, a service, or a resource, receiving a response to the request that includes a location of a serving access point that provides the application, the service, or the resource, establishing a connection with the serving access point, and receiving an assignment of a network address that is anchored by the serving access point.