Patent application number | Description | Published |
20160029228 | Telecommunications Network Non-Establishment Response - Telecommunication network components configured to manage a pre-establishment phase of a communication session of user equipment are described herein. The components may receive a session-failure indication, e.g., during the pre-establishment phase. The components may determine action data based at least in part on the received session-failure indication. In response to the action data indicating a retry, the components may re-initiate the communication session via an access network indicated in the action data. User equipment may transmit a session-failure indication indicative of a detected failure condition preventing establishment of the communication session. | 01-28-2016 |
20160037390 | Telecommunications Network Emergency-Call Handover - Telecommunications network components configured to manage a handover of a communication session, e.g., an emergency communication session, of user equipment are described herein. A core network device may transmit respective handover queries to a plurality of anchoring network devices following a handover request from user equipment. Each anchoring network device can provide a respective indication of whether the emergency communication session is being proxied by that anchoring network device. The core network device may transmit an invitation message to an anchoring network device in response to a positive indication from that anchoring network device. An anchoring network device may store in a memory an address of the anchoring network device in association with an address of the user equipment. The core network device may retrieve from memory the address of the anchoring network device and transmit an invitation message to the anchoring network device using the retrieved address. | 02-04-2016 |
20160037471 | Suppressing Third Party Registration and Third Party Deregistration Actions - An S-CSCF component within an IMS receives a registration request associated with the UE. The registration request is associated with the UE switching from a first network that provides support for a first feature set to a second network that provides support for the second feature set. Instead of performing registration actions and deregistration actions with an application server in response to the registration request, the S-CSCF compares the feature tags of the registration request with previous feature tags that are associated with currently registered features. The S-CSCF causes a registration action to be performed in response to determining that the current registration request includes a feature tag that is not currently registered. The S-CSCF causes a deregistration action to be performed in response to determining that the current registration request does not include a feature that is currently registered. | 02-04-2016 |
20160080559 | TELECONFERENCING SYSTEM USING SYNTHETIC IDENTIFIERS - In some implementations, a teleconference server can receive a connection request corresponding to a party, determine that the party is a non-self-specified party in a specified teleconference, and determine a party-specific synthetic identifier for the party. In some implementations, a telecommunications network can include terminals and a teleconference server configured to receive one or more connection requests corresponding to respective parties, determine that one or more of the parties are non-self-specified parties, and determine respective party-specific synthetic identifiers for at least some of the non-self-specified parties. In some implementations, a connection request corresponding to a party can be received. The connection request can specify a teleconference. A party-specific synthetic identifier for the party can be determined, e.g., after determining that the party is a non-self-specified party in the specified teleconference. | 03-17-2016 |
20160105468 | SERVICE CAPABILITIES IN HETEROGENEOUS NETWORK - In some implementations, a telecommunications network can include a core network device. The core network device can receive from a session-originating device an initiation request of a communication session, the initiation request including information of a destination and information of media capabilities. The core network device can determine network-location information of the destination, retrieve from a capability registry modification information corresponding to the network-location information, and modify the information of the media capabilities based at least in part on the modification information. The core network device can transmit the initiation request including the modified information of the media capabilities to another core network device corresponding to the network-location information. The core network device can also determine that the information of the one or more media capabilities does not correspond to the retrieved capability information and transmit a session-failure indication to the session-originating device. | 04-14-2016 |
20160105780 | Location Identifiers in Mobile Messaging - A communication device may transmit messages to an Internet Protocol Multimedia Subsystem (IMS) network through an untrusted non-3GPP radio access network (RAN). A process to be implemented on a communication device may include generating a message having a location identifier (ID) that is indicative of a current location of the communication device, and transmitting the message, through an untrusted non-3GPP RAN, to a node within the IMS network. A process to be implemented on one or more nodes of the IMS network may include receiving, from a communication device and via an untrusted non-3GPP RAN, a message having a location ID, and in response to receiving the message, estimating a current location of the communication device based at least in part on the location ID. | 04-14-2016 |
20160127426 | SPI HANDLING BETWEEN UE AND P-CSCF IN AN IMS NETWORK - Managing Security Parameter Information (SPIs) to prevent race condition failures begins where a system negotiates SPIs along with associated expiration times, and re-negotiates new SPIs as necessary. The system prevents race conditions that would otherwise occur when both an old SPI and a new SPI are active at the same time. The system accomplishes this by managing the storage and deletion of old SPIs such that only active SPIs are stored on the system for use by a User Equipment (UE) or Proxy Call Session Control Function (P-CSCF). | 05-05-2016 |
20160142447 | Telecommunications Network Call Control - Telecommunications network components configured to manage call control of a communication session of user equipment are described herein. An anchoring network device may proxy signaling traffic for the communication session. The anchoring network device may determine a routing identifier based at least in part on which access network, or which type of access network, is carrying the communication session, and may transmit state information of the communication session to a call-control server in association with the routing identifier. The call-control server may provide control information of the communication session to the anchoring network device in response to the state information. The anchoring network device may modify the communication session, e.g., by adding or dropping one or more parties, in response to the control information. The routing identifier may be determined based at least in part on capabilities of a communication session indicated in a session-initiation message. | 05-19-2016 |