Patent application number | Description | Published |
20100254347 | Support for Continuity of Tunnel Communications for Mobile Nodes Having Multiple Care of Addressing - The present invention solves communication disruption problems during the hand-off transition period by using a pre-handoff registration of a new foreign agent on behalf of the mobile node The pre-handoff registration message should: (1) identify itself as a pre-hand off registration message, (2) indicate direction of traffic for the pre-handoff registration time period, and (3) specify a lifetime or time period when the pre-handoff registration request will continue to be considered valid The local mobility anchor will accept traffic using the pre-handoff registration care-of address depending on the directionality indicator, but the communication traffic to or from the mobile node will not be disrupted during the transition period. Because the care-of address for the mobile node on the new foreign network can be used to direct communication traffic to or from the mobile node during this transition time period, no disruption of service will be encountered. | 10-07-2010 |
20100290433 | SINGLE RADIO VOICE CALL CONTINUITY (SR-VCC) - The present invention discloses a node ( | 11-18-2010 |
20110064054 | Method and System for Maintaining Multiple PDN Network Connection During Inter-Technology Handover in Idle Mode - The present invention provides a method and system for supporting an optimized an idle mode handoff of user equipment from a 3GPP (EUTRAN) to a non-3GPP system (HRPD, cdma2000) where the user equipment washes to maintain connectivity with multiple PDN networks. Namely, during an idle mode registration of the user equipment with the non-3GPP system, the user equipment will provide an indication to the access node on the non-3GPP system so that the access point in that non-3GPP system contacts the appropriate entity (HSS or AAA) on the home network for the user equipment to download the addresses of the multiple PDN gateway addresses that are currently in use by the user equipment. This indication to the non-3GPP access node, the contact message from the access node to the home network, and the response from the home network to the access node on the non-3GPP system are novel features that are not shown in the prior art, and provide the access node with sufficient information to maintain multiple PDN connectivity to the user equipment during an idle mode handover. | 03-17-2011 |
20110122824 | ANCHORING SERVICES OF A MOBILE STATION ATTACHED TO A FIRST SERVICE DOMAIN AT A HOME AGENT IN A SECOND SERVICE DOMAIN - A first node receives information associated with a mobile station to allow for establishment of a session for the mobile station that is attached to a first wireless access network in a first service domain. In response to the received information, the first node sends messaging to a home agent in a second service domain that is of a different type than the first service domain. The first node receives, from the home agent, an Internet Protocol (IP) address allocated to the mobile station in the second service domain, where the IP address is allocated in response to the messaging, and where services provided to the mobile station are anchored in the second service domain. | 05-26-2011 |
20110223929 | SCHEDULING TRANSMISSION OF DATA AT A BASE STATION BASED ON AN INTERFERENCE INDICATOR MESSAGE FROM ANOTHER BASE STATION - A system includes a first base station of a first vendor configuration and a second base station of a second vendor configuration. A link is between the first and second base stations. The first base station is configured to receive at least one interference indicator message from the second base station, and schedule transmission of data based on the at least one interference indicator message. Scheduling the transmission of data includes determining whether to transmit the data using a current resource or to delay transmission of the data. | 09-15-2011 |
20120008592 | HANDOFF OF A MOBILE STATION BETWEEN PACKET-SWITCHED AND CIRCUIT-SWITCHED WIRELESS DOMAINS - A first mobility management entity associated with a packet-switched wireless access network receives information associated with a mobile station being served by the first mobility management entity, where the information identifies a serving generic access network controller for the mobile station. The serving generic access network controller is used to provide a circuit-switched service to the mobile station while the mobile station is attached to the packet-switched wireless access network. The first mobility management entity initiates a handoff of the mobile station from the packet-switched wireless access network to a circuit-switched wireless access network, where the circuit-switched wireless access network is in a region served by a second generic access network controller different from the serving generic access network controller. In performing the handoff, the first mobility management entity uses the information to identify the serving generic access network controller to communicate handoff-related messaging to the serving generic access network controller to cause provision of the circuit-switched service to be handed off from the serving generic access network controller to the second generic access network controller. | 01-12-2012 |
20120058760 | INCREASING TIME INTERVAL BETWEEN SUCCESSIVE SEARCHES FOR SIGNALING OF NEIGHBORING CELLS OF A DIFFERENT WIRELESS TECHNOLOGY - A mobile station attached to an access network receives a control message identifying neighboring cells of a different wireless technology than the access network. The mobile station searches for signaling of the neighboring cells of the different wireless technology, and in response to not being able to detect the signaling of the neighboring cells, the mobile station increases a time interval between successive searches for the signaling. | 03-08-2012 |
20120064934 | PROVIDING AN INDICATOR OF PRESENCE OF A FIRST ACCESS NETWORK THAT IS CAPABLE OF INTERWORKING WITH A SECOND ACCESS NETWORK - A mobile station receives a control message containing an indicator of presence of a first access network that operates according to a first protocol that is capable of interworking with a second access network that operates according to a second, different protocol. In response to receiving the indicator, the mobile station performs a procedure to establish a personality for the mobile station that specifies the configuration to allow the mobile station to use features of the first access network that enable interworking with the second access network. | 03-15-2012 |
20120184294 | OPTIMIZING A SERVING GATEWAY LOCATION IN A HOME EVOLVED NODE B WITH LOCAL IP ACCESS - A system and method are provided for enabling a mobile device to establish a local IP access on a packet data network connection on a femto cellular access network. A local server gateway and a macro server gateway are coupled to the femto cellular access network. A mobility management entity is coupled to the femto cellular access network, the local server gateway and the macro server gateway. The mobility management entity obtains a status mode of the mobile device and a location of the mobile device transmitted on the femto cellular access network. The mobility management entity selects one of the local server gateway and the macro server gateway based on the status mode of the mobile device and the location of the mobile device. | 07-19-2012 |
20120201222 | SYSTEM AND PROTOCOLS FOR INTER-MOBILITY ACCESS GATEWAY TUNNELING FOR FAST HANDOFF TRANSITION - A system and method for transitioning connectivity of a mobile node between mobility access gateways on a communication system using an inter-MAG tunneling protocols for a fast handoff. The protocols can use pre-configured or dynamic protocols on the IP-Layer or another layer on the protocol stack. In a hi-directional tunneling mechanism, the protocol and system supports the transfer of the mobility session context information for the mobile node to the next MAG in advance of the fast handoff to avoid delays and an inter-serving gateway bidirectional tunneling mechanism to allow forwarding of the mobility session traffic between new serving gateway and the prior serving gateway without ambiguity. | 08-09-2012 |
20130051367 | Support for Continuity of Tunnel Communications for Mobile Nodes Having Multiple Care of Addressing - The present invention solves communication disruption problems during the hand-off transition period by using a pre-handoff registration of a new foreign agent on behalf of the mobile node The pre-handoff registration message should: (1) identify itself as a pre-hand off registration message, (2) indicate direction of traffic for the pre-handoff registration time period, and (3) specify a lifetime or time period when the pre-handoff registration request will continue to be considered valid The local mobility anchor will accept traffic using the pre-handoff registration care-of address depending on the directionality indicator, but the communication traffic to or from the mobile node will not be disrupted during the transition period. Because the care-of address for the mobile node on the new foreign network can be used to direct communication traffic to or from the mobile node during this transition time period, no disruption of service will be encountered. | 02-28-2013 |
20130070729 | HANDOFF OF A MOBILE STATION BETWEEN PACKET-SWITCHED AND CIRCUIT-SWITCHED WIRELESS DOMAINS - A first mobility management entity (MME) is configured to cooperate with a first access network controller to provide a circuit switched service to a mobile station while the mobile station is attached to a packet switched wireless access network in a first coverage area. A second MME is configured to cooperate with the first access network controller to provide a circuit switched service to the mobile station when the mobile station has moved from the first coverage area to the second coverage area. A home subscriber system is operated to provide, to the second MME, information identifying the first access network controller as serving the mobile station to enable the second MME to initiate handoff of the mobile station from the packet switched wireless access network to the circuit switched wireless access network. | 03-21-2013 |
20130070730 | HANDOFF OF A MOBILE STATION BETWEEN PACKET-SWITCHED AND CIRCUIT-SWITCHED WIRELESS DOMAINS - A first mobility management entity (MME) is configured to cooperate with a first access network controller to provide a circuit switched service to a mobile station while the mobile station is attached to a packet switched wireless access network in a first coverage area. A second MME is configured to cooperate with the first access network controller to provide a circuit switched service to the mobile station when the mobile station has moved from the first coverage area to the second coverage area. A home subscriber system is configured to provide, to the second MME, information identifying the first access network controller as serving the mobile station to enable the second MME to initiate handoff of the mobile station from the packet switched wireless access network to the circuit switched wireless access network. | 03-21-2013 |
20130142172 | Method and System for Maintaining Multiple PDN Network Connection During Inter-Technology Handover in Idle Mode - Supporting an optimized idle mode handoff of user equipment from a 3GPP to a non-3GPP system. Namely, during an idle mode registration of the user equipment with the non-3GPP system, the user equipment may provide an indication to the access node on the non-3GPP system so that the access point in that non-3GPP system contacts the appropriate entity (HSS or AAA) on the home network for the user equipment to download the addresses of the multiple PDN gateway addresses that are currently in use by the user equipment. This indication to the non-3GPP access node, the contact message from the access node to the home network, and the response from the home network to the access node on the non-3GPP system provide the access node with sufficient information to maintain multiple PDN connectivity to the user equipment during an idle mode handover. | 06-06-2013 |
20140308944 | Providing an Indicator of Presence of a First Access Network that is Capable of Interworking with a Second Access Network - A mobile station receives a control message containing an indicator of presence of a first access network that operates according to a first protocol that is capable of interworking with a second access network that operates according to a second, different protocol. In response to receiving the indicator, the mobile station performs a procedure to establish a personality for the mobile station that specifies the configuration to allow the mobile station to use features of the first access network that enable interworking with the second access network. | 10-16-2014 |
20140348134 | SYSTEM AND PROTOCOLS FOR INTER-MOBILITY ACCESS GATEWAY TUNNELING FOR FAST HANDOFF TRANSITION - A system and method for transitioning connectivity of a mobile node between mobility access gateways on a communication system using inter-MAG tunneling protocols for a fast handoff. The protocols can use pre-configured or dynamic protocols on the IP-Layer or another layer on the protocol stack. For bi-directional tunneling, the mobility session context information for the mobile node is transferred to the next MAG in advance of the fast handoff. For uni-directional tunnel, a uni-directional tunneling mechanism simplifies the logic of tunnel negotiation and setup during the fast handoff with the creation of a temporary forwarding state where all up-link traffic can be sent from the mobile node to the home network through the nMAG, but the down-link traffic from the home network is sent to the pMAG for forwarding to the nMAG and then the mobile node. | 11-27-2014 |
20140369319 | Method and System for Maintaining Multiple PDN Network Connection During Inter-Technology Handover in the Idle Mode - Supporting an optimized idle mode handoff of user equipment from a 3GPP to a non-3GPP system. Namely, during an idle mode registration of the user equipment with the non-3GPP system, the user equipment may provide an indication to the access node on the non-3GPP system so that the access point in that non-3GPP system contacts the appropriate entity (HSS or AAA) on the home network for the user equipment to download the addresses of the multiple PDN gateway addresses that are currently in use by the user equipment. This indication to the non-3GPP access node, the contact message from the access node to the home network, and the response from the home network to the access node on the non-3GPP system provide the access node with sufficient information to maintain multiple PDN connectivity to the user equipment during an idle mode handover. | 12-18-2014 |
20150018036 | System and Method for Supporting Switching Between a Packet-Switched Network and a Circuit-Switched Network - A device and method for controlling communications between a User Equipment (UE) ( | 01-15-2015 |
20150029980 | System and Method for Supporting Switching Between a Packet-Switched Network and a Circuit-Switched Network - A User Equipment (UE) ( | 01-29-2015 |