Abstract: A smooth and seamless terminal switching guaranteeing continuity of communication at an application level is realized. A call control part for setting and managing a physical and logical transmission path between communication terminals, a session management part for managing establishment of data communication between the communication terminals, and a switching request processing unit for controlling interruption and resumption of a session are provided, wherein the switching request processing unit exercises a function to temporarily interrupt a session after receiving a session switching request signal from a communication terminal, a function to instruct the call control part to establish a call connection with a switch destination communication terminal, a function to establish a session with an application on the switch destination communication terminal, and a function to resume, after establishing the session, a session with a communication terminal of an opposite side.

Abstract: Described herein are mechanisms and methods that facilitate generation of receiver status message (e.g., acknowledgments and/or negative acknowledgments) before, during, and after a handoff of an access terminal (user equipment) from a first transceiver module to a second transceiver module. A network module can generate receiver status messages during a handoff and informs a target transceiver module of when it can begin to generate receiver status messages for data received from an access terminal.

Abstract: Disclosed are a fast handover system and a method thereof. The fast handover method can include: allowing a mobile node (MN) to transmit a handover information message to a previous mobile access gateway (PMAG); allowing the PMAG to transmit a fast proxy binding update (FPBU) message to a local mobility anchor (LMA) on the basis of the handover information message received from the MN; allowing the LMA to transmit a handover initiation (HI) message including MN-ID and proxy-care-of address (CoA) of the PMAG to a new MAG (NMAG); transmitting a position update message to the NMAG if the MN is attached to a target BS that is connected to the NMAG; and allowing the NMAG to deliver a buffered packet to the MN.

Abstract: The present invention concerns a first base station managing a neighboring condition and cell area operation of a cell area, the cell area being a cell area of a wireless cellular network, the wireless cellular network comprising a telecommunication network enabling a transfer of information between the first base station and a second base station, where the wireless cellular network comprises a server linked to the telecommunication network.

Abstract: Described in an example embodiment herein is a Mobility Service Engine (MSE) cluster comprising an MSE Cluster Master and at least one MSE Cluster Slave. The MSE Master is configured to define Network Service Segments. The MSE Master of the cluster distributes the Network Service Segments to slaves within the cluster. The network is configured to forward data to the correct Network Service Segment.

Abstract: A handover processing method includes obtaining, by a relay station, information, where the information is used for determining whether a mobility management entity (MME) of a user equipment is in a mobility management entity pool (MME pool) to which a neighboring eNB belongs; and determining, by the relay station, that an X2 interface between a serving eNB of the relay station and the neighboring eNB cannot be used for handover if the MME of the user equipment is not in the MME pool to which the neighboring eNB belongs. The foregoing technical solutions may enable the relay station to initiate a correct handover procedure.

Abstract: Disclosed are a radio communication base station device and a radio communication method which can reduce the interruption time of a service being received by UE while suppressing a resource consumption amount in an SFN area when the UE performs a handover from the SFN area to a non-SNF area. An MBMS reception request identification unit (127) judges an RRC message inputted from the UE (100). If an MBMS reception request is contained, an MBMS reception request is transmitted to an MBMS reception request storage unit (124). Moreover, when the RRC message from the UE (100) contains an adjacent cell reception quality measurement result, a handover decision unit (126) judges whether to perform a handover to the adjacent cell. The MBMS reception request storage unit (124) stores the MBMS reception request outputted from the MBMS reception request identification unit (127).

Abstract: The present invention relates to a method, apparatuses, a system, and a computer program product for generating measurement gaps in a data transfer between a wireless terminal device and a wireless access network. A sharing indicator is signaled from the wireless access network to the wireless terminal device, and is used at the wireless terminal device to control allocation ratios of the measurement gaps to different radio access technologies.

Abstract: A method, system, and computer-readable media are provided for allowing a mobile device to maintain communication connectivity during a handoff between wireless access points. In one aspect, the method may include negotiating security association information and establishing a first communication tunnel by tunneling an inner IP address within a first outer IP address. The method may further include authenticating a request for establishing a second communication tunnel by identifying the negotiated security association information within the request. Additionally, the method may include establishing the second communication tunnel by tunneling the inner IP address within a second outer IP address. Moreover, the method may include pushing data associated with the communication session through the second communication tunnel.

Abstract: In order to be able to flexibly and dynamically control the selection of an access network to be used by a mobile terminal, an assembly contains a cellular network which is provided with a core network and several access networks for connecting mobile terminals to the core network, and at least one mobile terminal. The mobile terminal is equipped with a decision unit at the terminal end to select the access network to be used by the mobile terminal while the cellular network encompasses a decision unit at the network end to select the access network to be used by the mobile terminal as well as a control device for controlling the decision unit located at the terminal end and at the network end.

Abstract: Disclosed are a base station device and a call connection method for reducing a call connection delay. According to the device and the method; in ST301, a terminal acquires an identifier managed in a base station (100); in ST302, radio resource information required for a service desired by the terminal is decided; in ST303, by using the identifier acquired in ST301, the terminal transmits a request for establishing RRC connection to the base station (100). In ST304, according to the radio resource information received from the terminal, the base station (100) decides the radio resource to be set for the terminal before authentication by an upper layer node, and the base station (100) extracts information destined to the upper layer node. In ST305, the information destined to the upper layer node is transmitted to the upper layer node. In ST306, the setting contents of the radio resource decided in ST304 are transmitted to the terminal.

Abstract: A source eNB determines whether an X2 interface is established between the source eNB and a target eNB when the source eNB performs a handover of a UE under the control of the source eNB to the target eNB. When the X2 interface is not established between the source eNB and the target eNB, the source eNB inquires with an address management node about the IP address of the target eNB. Upon receipt of the IP address of the target eNB from the address management node, the source eNB accesses the target eNB using the IP address and establishes the X2 interface. After establishing the X2 interface, the source eNB performs a handover of the UE to the target eNB.

Abstract: Methods and mechanisms enhance heterogeneous media independent handover (MIH) between different link layer technologies. Embodiments include using an MIH proxy entity, MIH capable network controller, and an MIH server. Enhancements are made to the query phase, preparation phase, execution phase and completion phase by including required information in MIH messages.

Abstract: A method for configuring a network is described, the method comprising: receiving, from a first radio node in the network, network information associated with one or more second radio nodes in the network; generating a network relation table, the network relation table comprising network information associated with the first radio node and the one or more second radio nodes; and performing a handoff to a third radio node in the network using the network relation table.

Abstract: A method and apparatus for performing a carrier management in a broadband wireless communication system supporting multi-carriers are disclosed. A method for a mobile station to perform a carrier management procedure with a base station supporting multiple carriers includes receiving a carrier management command message including an action code indicating a primary carrier change and an action time, on a serving primary carrier, transmitting an acknowledgement message indicating that the carrier management command message is successfully received in the mobile station, on the serving primary carrier, and switching the primary carrier to a target carrier indicated by the carrier management command message at the action time, wherein the action time is set to a value more than a retransmission timer, the retransmission timer is set to a time during which the base station waits for receiving the acknowledgement message in response to the carrier management command message.

Abstract: Solving dual errors for user equipment UE checking whether a private cell is allowed when handing over between serving and target cells, where the PLMN and/or EPLMNs list of the serving and target cells may differ. The serving cell may send a one-bit indication that there is a change in a handover command or system information SI6 message after which the UE may or may not refrain from reporting new cells until it performs a registration/location area update in the target cell. The target cell may trigger in the UE a registration update then provide the UE with the PLMN of the target cell. The serving cell can provide the PLMN of the target cell in a SI6 message or handover command, which the UE may use in place of or in addition to the PLMN/EPLMN of the serving cell when checking whether a private/closed subscriber group cell is allowed.

Abstract: In a radio access network, a drift radio network controller (DRNC) [262] transmits to a serving radio network controller (SRNC) [261] either (1) a filtering rule for a candidate cell [so that the serving radio network controller (SRNC) can generate a measurement list for a user equipment unit having a connection controlled by the serving radio network controller (SRNC)], or (2) a list of cells qualifying [according to filtering rules stored at and applied by the drift radio network controller (DRNC)] for inclusion in the measurement list for the user equipment unit. The filtering rule provides criteria useful for determining whether the candidate cell qualifies for inclusion in the measurement list of cells for the user equipment unit. If the candidate cell is a shared cell or cell for which the user equipment unit otherwise has permission for usage, the candidate cell qualifies for inclusion in the measurement list for the user equipment unit.

Abstract: A method for requesting allocation of a Channel Quality Information Channel (CQICH) by a Mobile Station (MS) in a communication system. The method includes switching, by the MS, from a serving anchor Base Station (BS) to a target anchor BS, detecting an absence of a CQICH allocated from the target anchor BS, and transmitting, from the MS to the target anchor BS, a CQICH allocation request. The CQICH allocation request includes a CQICH allocation request header including a basic Connection IDentifier (CID) of the MS and a Header Check Sequence (HCS) for the CQICH allocation request header.

Abstract: A wireless base station connected together with another base station to a superior apparatus, comprises, a forwarding controller to forward data received from the superior apparatus to the mobile station in a case of receiving none of a handover request message from the mobile station connected to the wireless base station, and to forward a part or the whole of the data received from the superior apparatus to the another wireless base station after receiving the handover request message from the mobile station, and a notifying unit to notify the another wireless base station of information used for the another wireless base station determining a reception allowable period of the data forwarded from the wireless-base station.

Abstract: A game apparatus 10 transmits a connection request including identification information to an access point apparatus 1 (S1). In response to the transmission of the connection request, the access point apparatus 1 allows a user to select whether or not to permit connection with the game apparatus 10. When the connection with the game apparatus 10 is permitted, the access point apparatus 1 registers identification information of the game apparatus 10 in a registration list (S2), and transmits a connection response representing the permission of the connection to the game apparatus 10 (S3). In response to this, the game apparatus 10 transmits an authentication request (S5). When identification information included in the authentication request is registered in the registration list, authentication processing between the access point apparatus 1 and the game apparatus 10 is started.

Abstract: A system and method for handoff are provided. A mobile station performs a make-before-break handoff of a control channel between a serving and target base station and a break-before-make handoff of a traffic channel between the serving and target base stations. The traffic channel handoff is performed after the control channel handoff has completed.

Abstract: A technique to reduce the service disruption time of a mobile station (MS) when the MS performs a hard handover (HHO) is provided. An MS receives MAC context information that is necessary to connect to the target base station (BS) through the serving BS during the HHO preparation time instead of HHO execution time. The HHO preparation phase refers to the stage where a handover is initiated but the MS is still connected with the current serving BS. On the other hand, once the HHO execution begins, the MS must disconnect from the serving BS in order to establish the communication with the target BS.

Abstract: A method and apparatus for securing a quality of service (QoS) of data communication is provided. The method of securing the QoS of data being received by a mobile terminal at a reception side that performs a handover from a first network to a second network comprises generating a packet including information about the second network, transmitting the packet to a transmission side, and selectively performing the handover according to whether a packet including information in response to the packet is received. When a reception side performs a handover, a transmission side can be informed of information about the second network via the exchange of packets between the reception side and the transmission side, thereby securing a QoS of the data transmission.

Abstract: A mobile terminal determines, if a communication request is input, whether a connection destination mobile communication network system is a first mobile communication network system as a subscription mobile communication network system, or a second mobile communication network system as a roaming destination mobile communication network system. When it is determined that the connection destination mobile communication network system is the second mobile communication network system, a mobile terminal user is notified of information indicating a roaming state. When an input of a connection destination change request is received, a mobile communication network system reselection process is performed for changing the connection determination mobile communication network system from the second mobile communication network system to the first mobile communication network system.

Abstract: A radio base station managing a handover source cell decides a method for achieving a handover in consideration of CSG-ID and Access Mode of a handover destination cell. A mobile communication method comprises: a step of notifying, by a radio base station HeNB#1, a radio base station HeNB#2 of CSG-ID and Access Mode of cell subordinate to a radio base station HeNB#1, when establishing an X2 connection with the radio base stations HeNB#2; the radio base station HeNB#2 managing the CSG-ID and the Access Mode of the cell subordinate to the radio base station HeNB#1; a step of deciding the method for performing the handover of the mobile station UE from the cell subordinate to the radio base station HeNB#2 to the cell subordinate to the radio base station HeNB#1 on the basis of the managed CSG-ID and Access Mode of the cell subordinate to the radio base station HeNB#1.

Abstract: A method for transmitting control information from multiple base stations in an active set to a mobile device in a wireless communication system reduces resource consumption by routing information originating from a plurality of active base stations through a single serving base station. The serving base station pools and resolves the information from the active base stations and sends the resolution of the pooled information over a downlink control channel for evaluation and response by the mobile device.

Abstract: A mobile station has a transmitter, a first receiver, and a second receiver, each of which can be configured to use a first radio access technology and a second radio access technology. The mobile station uses the transmitter and the first receiver to engage in a communication session via a serving base station that uses the first radio access technology. When a degradation in quality of the communication session is detected, the mobile station evaluates a target base station by transmitting a trial communication to the serving base station and receiving, through the second receiver, a trial response from a target base station. The target base station uses the second radio access technology. If the trial response is acceptable, the mobile station requests a handover of the communication session to the target base station. The mobile station may select the target base station from a multi-technology neighbor list.

Abstract: A reception quality estimating method estimates reception quality of a wireless communication area for estimating success or failure of handover processing occurring in a service area of a wireless communication system including a plurality of base stations. The method includes a first step and a second step. In the first step, the reception qualities of radio waves from the plurality of base stations are grasped at a given location within the service area. In the second step, the start point and end point of the handover processing are estimated by referring to time required for the handover processing, moving speed of a mobile terminal, which are previously input, and the reception qualities, and then success or failure of the handover processing is estimated by referring to the reception qualities of radio waves from the base stations at the start point and end point of the handover processing.

Abstract: A method of enabling the management of handovers of voice calls from a Packet Switched, PS, access to a Circuit Switched, CS, access where the voice calls are established using an IP Multimedia Subsystem, IMS, network. The method comprises performing a first IMS registration of a user via said PS access including setting for the user in a Home Subscriber Server, HSS, of the user's home network, an identifier of a first access transfer control function, which access transfer control function is responsible for anchoring user media sessions in an access transfer gateway of a serving network, and notifying a mobility function within said service network of the set identifier. A second or further IMS registration of the same user is then performed via said PS access, it being determined that said first IMS registration exists.

Abstract: A wireless communication terminal includes a measurement section that measures quality of a signal transmitted from a base station, a determination section that determines whether or not handoff is to be performed based on a measurement result of the measurement section and a criterion of the determination of the handoff, and handoff section that performs the handoff based on a determination result of the determination section, wherein the determination section changes the criterion of the determination of the handoff when the handoff section performs the handoff in a predetermined repetition pattern.

Abstract: A radio base station suitable for performing a handover operation for a LTE-variant of a radio access network comprises a transceiver and a status report requester. The transceiver is configured to facilitate wireless transmission between the radio base station and a wireless terminal over an air interface, including transmission of a radio link bearer for the connection over a downlink from the radio base station to the wireless terminal. The status report requester is configured to determine, according to one or more pre-defined criteria, whether to request from the wireless terminal a status report for a radio bearer prior to the radio base station transferring user data for the connection to another radio base station in conjunction with a handover.

Abstract: Advanced group services for use in a mobile phone network include a prepaid billing solution. In the mobile phone network, a real-time exchange interfaces to at least one mobile switching center to provide the advanced group services therein. Both the real-time exchange and the mobile phones that use the advanced group services communicate with each other using call setup and in-band signaling within the mobile phone network, wherein the real-time exchange switches the voice frames for the advanced group services between the mobile phones across bearer paths and through at least one mobile switching center in the mobile phone network. A real-time billing mechanism is provided for a prepaid subscriber of the advanced group services. The real-time billing mechanism may use a prefix-based billing solution or a charging number based billing solution.

Abstract: The present invention relates to a handover procedure, and more particularly, to a method of reducing latency in performing handover using fast ranging. The present invention includes the steps of receiving a handover message including a specific ranging code and uplink resource information from a serving base station and transmitting the specific ranging code to a target base station using the uplink information.

Abstract: A mobile wireless communication device may communicate information to a first network device for enabling authentication, authorization and/or management of accounting for the mobile wireless communication device for use within a first network. A SIM may enable a communication session with a second network based on data sent to the second network related to the authentication, authorization and/or accounting management for use in the first network. The mobile wireless communication device may be handed-off to the second network and/or may establish simultaneous communication sessions with the first network and the second network without communicating authentication, authorization and/or accounting information to the second network. The first and/or second network and/or another network device may comprise and/or share a session control server.

Abstract: The method for selecting a base station for handover from a plurality of target base stations includes receiving, at a network element, measurement reports and loads of the plurality of target base stations, where the plurality of target base stations are within a coverage area of a mobile station. The method further includes selecting, at the network element, the base station from the plurality of target base stations for handover of the mobile station of a source base station to the selected target base station based on the measurement reports and the loads of the plurality of target base stations.

Abstract: A system and method for allowing legacy circuit switched user equipment (CS UE) to operate via a packet-switch system, such as an IP Multimedia Subsystem (IMS) system, is provided. The mobility and session control aspects of communications with a legacy CS UE is separated. A user agent is placed in the receiving node (e.g., a home node B) that acts as the SIP agent for the CS UE for session control. An interworking function is provided to allow mobility between the macro CS network and the PS (e.g., IMS) network.

Abstract: A wireless communication system includes a wireless terminal and a plurality of base stations that can communicate with each other via a predetermined communication path that is different from the wireless communication path to the wireless terminal. The wireless terminal transmits a request signal to one of the base stations to request a response signal from another base station. The one base station transfers the received request signal to the other base station via the predetermined communication path. Upon reception of the request signal transferred from the one base station, the second base station transmits a response signal to the wireless terminal via the predetermined channel. The wireless terminal receives the response signal transmitted from the second base station via the predetermined channel.

Abstract: A transmission power control method for controlling a transmission power of an E-HICH for uplink user data transmitted from a cell controlled by a radio base station to a mobile station, includes: notifying, from a radio network controller to at least one radio base station controlling a first cell and a second cell, offsets between the transmission power of the E-HICH and a transmission power of a DPCH, when a mobile station is performing a soft-handover with the first and second cell; determining, at the first cell, a transmission power of a first E-HICH based on a notified offset, and transmitting the first E-HICH to the mobile station using the determined transmission power; and determining, at the second cell, transmission power of a second E-HICH based on a notified offset, and transmitting the second E-HICH to the mobile station using the determined transmission power.

Abstract: A method, which comprises receiving an indication of an intent to communicate using a first communication client registered to a user account. A memory is then consulted in an attempt to identify a communication session previously established with a party that is a communication client registered to the user account, the communication session having been placed in a held state. If the attempt is successful, the first communication client is then engaged in the communication session.

Abstract: A handover control method comprises a step in which a mobile station measures radio qualities in a plurality of different frequency cells at predetermined measurement intervals and a step in which the mobile station, when determining that the radio quality in a specific frequency cell satisfies a report condition, starts up a timer for the specific frequency cell and, when the timer for the specific frequency cell has expired, transmits to a radio base station a measurement report including the radio quality in the specific frequency cell. The mobile station, even when a timer for a second frequency cell has expired, does not transmit to the radio base station a measurement report including the radio quality in the second frequency cell if a timer for a first frequency cell having a higher priority than the second frequency cell is running.

Abstract: A system [100] includes a wireless entity [115] to provide wireless data, and a mobile station [105] in communication with the wireless entity [115] to receive the wireless data. The mobile station [105] includes a detection element [230] to detect a time interval between a current time and an occurrence of at least one of a reselection, a service interruption, and a seamless transition. A processing element [225] performs at least one of: (a) a full update of a data frame prior the at least one of the reselection and the service interruption; (b) a synchronization of a mobile station application prior to the at least one of the reselection and the service interruption; and (c) a temporary modification of at least one of a network application and the mobile station application prior to at least one of the reselection and the seamless transition.

Abstract: Handover of a mobile station (MS) from a serving base station (BS) to a target base station in a mobile communication system supporting both MS-initiated handover and BS-initiated handover, is coordinated by ensuring that, both in the case of BS-initiated handover and in the case of MS-initiated handover: the mobile station (MS) and the base station (BS) share information, either via a MO_BSHO-REQ message sent from the BS to the MS in the case of BS-initiated HO or via a MO_MSHO-RETQ message sent from the MS to the BS in the case of MS-initiated HO, indicating a target base station for the mobile station (MS) to attempt handover; and the mobile station (MS) sends an information message (M0B_H0-IND) indicating the base station to which handover was attempted.

Abstract: A method of handover in a wireless network includes in response to a request for data from a user equipment connected to a first access point in the plurality of access points, determining whether the first access point is storing the requested data and if the first access point is storing the requested data, then serving the user equipment with the first access point, if it is determined that the first access point is not storing the requested data, then determining whether a second access point in the plurality of access points is storing the requested data, and if it is determined that the second access point is storing the requested data, then initiating a handover of the user equipment to the second access point.

Abstract: A wireless communication server device facilitates overlay network communications in an underlay network environment. A database portion is configured to store information regarding overlay network devices within the underlay network environment. An overlay device management portion is configured to communicate with overlay devices and to provide operation information to the overlay devices. An underlay network communication portion is configured to communicate with at least one underlay network device at least to facilitate communications between a mobile station and a selected overlay device.

Abstract: A neighboring cell processing device includes: a measurement information acquisition unit 11 for acquiring measurement information which indicates a result of measurement of radio signals transmitted from a plurality of wireless base station devices other than a target wireless base station device, based on information provided from at least either of wireless terminal devices or wireless base station devices; and a neighboring cell information generation unit 12 for generating, based on the measurement information acquired by the measurement information acquisition unit 11, neighboring cell information which indicates one or a plurality of wireless base station devices located in the neighborhood of the target wireless base station device, among the plurality of wireless base station devices other than the target wireless base station device.

Abstract: A system and methods (300, 400) are disclosed for seamless communications between a communication device and wireless access points. A system that incorporates teachings of the present disclosure may include, for example, a multimode communication device (MCD) (106) having a controller (214) to manage operations of a global position (GPS) receiver (212), and a multimode wireless transceiver (202). The controller can be programmed to authenticate (304) the MCD with a first wireless access point, request and receive (306) a first IP address, establish (308) communications with a network management system (NMS) (100) according to the first IP address, transmit (310) to the NMS a location of the MCD, receive (320) a second IP address from the NMS in response to the NMS determining that the MCD is near a second wireless access point, and establish (330) communications over the second wireless access point according to the second IP address. Embodiments for the NMS are also disclosed.

Abstract: A wireless communication device comprises a processing system and a wireless communication transceiver. The processing system is configured to store in a memory system data that associates a geographic identifier, a pseudo network signal of a first wireless communication network, and a wireless communication channel of a second wireless communication network. The wireless communication transceiver is configured to wirelessly exchange first wireless communications with the first wireless communication network. The processing system is configured to, in response to the wireless communication device entering a geographic region associated with the geographic identifier, process the geographic identifier to identify the pseudo network signal of the first wireless communication network and the wireless communication channel of the second wireless communication network.

Abstract: A method of associating a mobile station to a base station in a wireless communication system comprises transmitting to a serving base station a scanning request message comprising an association indicator. The method also comprises receiving from the serving base station a scanning response message comprising a rendezvous time associated with a neighboring base station for initiating ranging with the neighboring base station, wherein the serving base station communicates an association notification to the neighboring base station, the association notification comprising the rendezvous time.

Abstract: The present invention overcomes the problem of S1 interface failure by redirecting user equipments to another radio basestation, or another RAT. This redirecting may be on a UE-by-UE basis, i.e. when a connection request is received, redirecting that UE, or may involve redirecting all UEs in a cell by broadcasting modified system information. The redirecting may be such that future traffic load, for example as caused by UEs performing tracking area updates, is minimized, by instructing UEs to redirect after a randomized period of time, or by locking the cell after a randomized period of time, for example. In yet further embodiments of the invention, the cell may be locked after a certain number of connection requests have been received. In this way, particularly busy cells can be locked sooner than would otherwise be the case.

Abstract: Embodiments of the present invention provide a communication system, comprising: a first wireless network including a coordinator and a plurality of network devices associated with the coordinator; a second wireless network; wherein the first coordinator is arranged to notify at least one network device of the availability of data; and the at least one network device notified of the availability of data is arranged to associate with the second wireless network and to receive the data.