Abstract: A communication apparatus is provided. A processor camps on a first cell, which is associated with a first radio access technology (RAT) and belongs to a first wireless network, via a radio transceiver module, and further camps on a second cell, which is associated with a second RAT and belongs to a second wireless network, via the radio transceiver module. The processor constructs a first packet switch connection with the first wireless network via the first cell to perform data transfer in the first wireless network, measures a first data transfer throughput of the first wireless network when performing the data transfer via the cell, and determines to perform the data transfer in the second wireless network via the second cell when a theoretical data transfer throughput corresponding to the second RAT is higher than the first data transfer throughput.

Abstract: A cellular communications system is described in which a mobile cellular device can, if necessary, obtain cell measurements for cells contained within a first cell list after it has received a second cell list. The mobile device then reports the cell measurements for cells within both lists so that a best candidate cell is less likely to be discarded in a cell handover procedure. A network node is also disclosed that can receive cell measurements for cells within a first cell list after the node has issued a second cell list. The node then uses the received cell measurement data to control a handover procedure.

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. The method also comprises associating with the neighboring base station by transmitting a ranging request after passing of the rendezvous time determined from a transmission time of the scanning response message from the neighboring base station, wherein the rendezvous time is associated with a time the neighboring base station is expected to provide a non-contention based ranging opportunity for the mobile station.

Abstract: A method for detecting an uplink signal includes: detecting, by a micro base station according to configuration information about an uplink signal sent by a UE, whether the uplink signal is received in an uplink receive window of a macro base station, where the macro base station and the micro base station have synchronized clock rates, there is a fixed time difference t1 between the uplink receive window of the macro base station and an uplink receive window of the micro base station, and |t1|?0; and if it is detected that the uplink signal is not received in the uplink receive window of the macro base station, after the micro base station advances the uplink receive window of the macro base station by a length of at least one cyclic prefix, detecting, by the micro base station, the uplink signal, and sending the uplink signal to the macro base station.

Abstract: A wireless communication system includes: a transmitter to transmit information about cells neighboring to a cell in which a wireless communication terminal exists; a receiver to receive the information about the neighboring cells; a first managing unit to manage a count of not being selected as a transition destination cell for each of the neighboring cells; and a second managing unit to manage a rank of each of the neighboring cells as a transition destination candidate cell based on the count of each of the neighboring cells, the second managing unit selecting the transition destination cell based on the rank.

Abstract: A networked computer system in a cellular communications network comprises a processor, a memory, and a non-transitory computer readable medium with computer executable instructions stored thereon which, when executed by the processor, cause the processor to generate a local cluster list by identifying a plurality of cells that are relevant to a maintenance or optimization operation of a reference cell using at least one neighbor cell list, a centroid of the reference cell, radio network planning data, or usage data of the reference cell, the local cluster list including local cluster information for the plurality of cells that are relevant to the maintenance or optimization operation, and store the local cluster list in the memory.

Abstract: A method and system supporting handoff of a multimedia call session using background network scanning is disclosed. A mobile multimedia handset may engage in the exchange of a multimedia information stream via a first wireless network, and may sniff a portion of radio frequency spectrum for a second wireless network. Information about available services and network quality of service for the second network may be received by querying the second wireless network or from advertising by the second wireless network. Hand-off between the two networks may be based upon the results of the comparison and one or more user-defined criteria, and the handoff may be synchronized according to predefined events in the stream of multimedia information.

Abstract: Management of a network may be accomplished by adjusting timer settings and/or retry criteria. For example, communications and management from an end-to-end perspective of entities in a network may be conducted; timers and/or retry criteria may be adjusted dynamically based on network traffic load; timers and/or retry criteria may be adjusted dynamically based on overload conditions; feedback mechanisms may be implemented to allow downstream network elements to inform upstream network elements about the health status and/or load condition of the network; and/or differentiated timer and retry criteria/mechanisms may be implemented.

Abstract: The present invention relates to a method and an apparatus for reducing the amount of interference power in a heterogeneous network environment by controlling uplink transmission power of user equipment. The method for a serving base station controlling uplink transmission power includes: receiving from the user equipment a signal measurement report with respect to a first neighboring base station, which transmits the strongest signal to the user equipment; transmitting to the user equipment a control signal including a path loss value, which is to be used for calculating the uplink transmission power; transmitting to the user equipment and the first neighboring base station scheduling information with respect to the user equipment; and receiving from the first neighboring base station an uplink signal of the user equipment which the first neighboring base station has received.

Abstract: A wireless communication method includes: transmitting, by a base station, a signal subjected to reduction of transmission power that is reduced compared with specific transmission power of the base station; and giving notice of, by a wireless terminal, when the wireless terminal detects a signal of the base station, a reduction cancellation request to the base station based on information relating to the reduction of the transmission power of the base station and a reception level of the signal of the base station, the reduction cancellation request being used for cancelling the reduction of the transmission power in the base station.

Abstract: A method for computer-aided mapping of system information medium access control protocol messages onto a plurality of transport channels for transmission using an orthogonal frequency division multiple access method, wherein a scheduling of system information data packets information in the context of the mapping on a transport channel of the plurality of transport channels is carried out dependent on the type of the system information.

Abstract: An approach facilitates synchronization by providing: (i) a method to analyze the two-satellite synchronization problem in time-frequency domain; and (ii) a two-stage estimation method to accomplish timing and frequency synchronization. The embodiment facilitates satellite diversity. The embodiment applies to a system involving two or more geosynchronous satellites.

Abstract: A method for enabling a broadcast/cellular device within a coverage area of a cellular network to access packet mobile digital broadcast services offered by a cellular operator of the cellular network, includes: a) obtaining a first identifier identifying the cellular operator; and b) accessing a storage area in order to retrieve a second identifier identifying and enabling access to the packet mobile digital broadcast services offered by the cellular operator, based on the first identifier obtained in a).

Abstract: A method for minimizing handoff latencies when a handoff is performed in a wireless network. An access point (AP) or base station associated to a current wireless station (STA) allows information required for a reassociation to the STA to be propagated to handoff-capable neighboring APs or base stations. When the STA moves, a neighboring AP or base station performs the reassociation to the STA on the basis of context. When a handoff procedure is performed, the time taken to receive context of a corresponding STA is reduced, such that a fast handoff can be implemented.

Abstract: At least one example embodiment discloses a method of controlling a handover of a user equipment (UE) from a serving base station to a target base station in a heterogeneous network. The method includes determining, by a serving base station, a speed of the UE and a type of the handover, the type of the handover being one of macro cell to macro cell, macro cell to small cell, small cell to macro cell and small cell to small cell, and controlling, by the serving base station, the handover from the serving base station to the target base station based on the speed of the UE and the type of handover.

Abstract: A method, an apparatus, and a computer program product for associating a user equipment (UE) with a relay in a wireless network are provided. The apparatus determines a relay backhaul link quality of a relay; determines a path loss from a UE to the relay; and compares the relay backhaul link quality to a direct link quality between the UE and a base station, and the path loss to a path loss threshold to determine whether to associate the UE with the relay.

Abstract: It is specified that a frame containing at least the plurality of slots is repeated. A detecting unit detects a slot usable in the communications between terminal apparatuses, from among a plurality of slots. A modem unit and an RF unit broadcast the information on the detected slot. A power measuring unit in the detecting unit measures the respective received powers of the plurality of slots, and an empty slot identifying unit identifies a slot whose received power is less than a threshold value.

Abstract: A method of wireless communication includes returning to a base station after a handover failure. The method also includes measuring a length of time between receiving a handover command and returning to the base station. The method further includes setting a physical uplink channel transmit power based on the measured length of time. The physical uplink channel can be an enhanced physical uplink channel (E-PUCH) of a high speed uplink packet access (HSUPA) wireless network.

Abstract: Methods, systems, apparatuses and devices are described for managing a call during radio link failure. In one embodiment, radio link failure over a radio access technology may be detected during or after a call setup procedure. A public land mobile network and an equivalent public land mobile network may be selected. An initial search for cells of the radio access technology may be performed over the selected public land mobile network and the equivalent public land mobile network. The initial search may be performed once or twice based on a configurable parameter.

Abstract: In a vehicle communication environment, a handover apparatus that is located at a random vehicle determines whether to perform handover based on a received signal intensity value of a signal that is received from base stations that are installed at the roadside and information that is acquired from peripheral vehicles. In this case, it is determined whether to perform handover using a signal intensity value and a link base station value representing a base station to which each vehicle is connected among information that is acquired from peripheral vehicles.

Abstract: Systems and methodologies are described that facilitate cell search, selection, and reselection within a wireless communication network that includes a home node base station (home nodeB). A user equipment (UE) can detect a home nodeB and communicate such identification to a macro network that includes at least one node base station (nodeB). The detected home nodeB and nodeB can be hierarchically structured in order to prioritize connectivity with the home nodeB over the nodeB. Such prioritization can be implemented by broadcasting home nodeB parameters and macro nodeB parameters having identification information therewith.

Abstract: A method for providing switching of a media session transmitted from a content server to a user equipment from a multicast to a unicast bearer. A preparation trigger recognised by the user equipment triggers a preparation phase wherein an application server prepares for an upcoming switch by re-configuring the media session and by providing the re-configuration data to the user equipment. Subsequent to the preparation phase, a second trigger triggers a release phase, wherein the multicast bearer is released, and the media session is resumed by the unicast bearer.

Abstract: A device acquires load information representing a load of radio communication performed between a base station and a plurality of communication terminals performing radio communication with the base station by using a radio resource allocated by the base station. The device sets in response to the acquired load information, from a first radio resource range and a second radio resource range, a radio resource range that the base station can allocate to an edge communication terminal whose channel quality is less than a predetermined threshold.

Abstract: A method for network reselection by a wireless communication device is provided. The wireless communication device can have an established connection to a first network. The method can include measuring a signal strength and a signal-to-noise ratio of the first network. The method can further include determining that the signal strength satisfies a signal strength threshold. The method can additionally include comparing the signal-to-noise ratio to a signal-to-noise ratio threshold. The method can also include disconnecting from the first network and reselecting to a second network in an instance in which the signal-to-noise ratio does not satisfy the signal-to-noise ratio threshold even though the signal strength satisfies the signal strength threshold.

Abstract: A system that incorporates the subject disclosure may include, for example, accessing configuration information, monitoring for radio resource control connection requests being transmitted from the wireless communication device to a first server of a first cell of a network, determining whether failed radio resource control connection requests satisfy a cell barring threshold based on the monitoring and based on the configuration information, and responsive to a determination that the cell barring threshold has been satisfied, causing the wireless communication device to perform cell selection for a second cell of the network and to perform cell barring of the first cell. Other embodiments are disclosed.

Abstract: A user equipment capable of performing reselection in a wireless network is disclosed. The user equipment comprises: 1) a controller configured to perform reselection between cells according to a priority-based reselection (PBR) algorithm using priority information; 2) transceiver circuitry configured to operate in cells using at least one radio access technology and to receive incoming messages including the priority information; and 3) a memory configured to store the received priority information. The controller is further configured to compare the received priority information with defined limits stored in the memory and to determine if the received priority information exceeds the defined limits.

Abstract: The present invention relates to a method and device for reselecting a cell by a user equipment in a wireless communication system. Particularly, a method for reselecting a cell by a user equipment comprises the steps of: setting a preferred frequency for cell reselection; forming at least one candidate cell except for a specific cell; and reselecting another cell in the frequency of the specific cell among the at least one candidate cell when the frequency of the specific cell is the same as the preferred frequency.

Abstract: In a method for managing communication signals using an electronic device, a communications service provider of the electronic device is recognized according to an international mobile subscriber identity of the electronic device. Information of multiple neighboring base stations are obtained according to a frequency band of the communications service provider, and strength of the communication signals and addresses of the multiple neighboring base stations are obtained to display on a display device of the electronic device. One of the communication signals received from the multiple neighboring base stations is selected as a communication signal of the electronic device.

Abstract: A mobile station capable of being served via a first radio access technology (RAT) and a second RAT. The mobile station includes a component configured to receive a permission to identify a cell of the first RAT in absence of a first radio access type neighbour cell list for a serving cell of the second RAT. The mobile station also includes a component configured to identify a cell of the first RAT after receiving the permission.

Abstract: The present invention provides a method involving at least one mobile node and a heterogeneous network comprising a plurality of access nodes. One embodiment of the method includes providing at least one first message including information indicative of a selected access node. The access node is selected to provide command services to the at least one mobile node.

Abstract: There are provided measures for a pathloss-based access node wake-up control, more specifically a pathloss-based access node wake-up control in a heterogeneous network environment. Such measures exemplarily include a retrieval of an average handover pathloss level between an access node and a neighboring access node, an estimation of an uplink sounding pathloss level between the access node and a terminal, said terminal being connectable to the access node and the neighboring access node, a comparison of the estimated uplink sounding pathloss level and the retrieved average handover pathloss level, and an enabling of a switch-on of the access node from an inactive state in which a transmitter is switched off to an active state in which the transmitter is switched on, when the estimated uplink sounding pathloss level is smaller than the retrieved average handover.

Abstract: The invention relates to a method for ensuring IP session continuity upon a handover of a mobile node to a non-3GPP network, wherein an ongoing IP session of the mobile node goes via a packet data network gateway. For non-3GPP networks it is necessary to discover a security gateway and to then establish the corresponding tunnels to the ePDG to form the new data path; a security tunnel between the mobile node and the security gateway, and an IP tunnel between the packet data network gateway and the security gateway. In order to prepare the handover to possible non-3GPP accesses, the two tunnels are pre-established, however maintained deactivated until their use is actually needed. Accordingly, when handing over to the non-3GPP network, the IP session may be continued without any significant interruption by activating the already established tunnels.

Abstract: A method and apparatus for reducing inter-cell interference in a radio communication system are disclosed. A method for reducing inter-cell interference includes determining REs of a downlink subframe of a first cell overlapping with CRS transmission REs of a downlink subframe of a second cell, determining a portion of REs of the downlink subframe of the first cell overlapping with CRS transmission REs of the downlink subframe of the second cell as punctured REs, mapping one or more downlink channel to the downlink subframe of the first cell other than the punctured REs, and transmitting the one or more downlink channel mapped to the downlink subframe of the first cell to a UE.

Abstract: A method and system for handling a signaling connection release process in a wireless communication system is provided. The method includes receiving a reconfiguration message by a mobile device. The method also includes triggering a serving radio network subsystem (SRNS) relocation process for the mobile device based on the receiving. Further, the method further includes causing a timer to cease running and resetting the timer to a predefined value. Moreover, the method includes clearing a variable associated with the timer from the mobile device. The system includes a mobile device, a radio network controller, and a communication interface.

Abstract: It is described a method for controlling a radio resource control connection between a base station and a user equipment, wherein a radio resource control connection between the base station and the user equipment is established for exchanging control messages between the base station and the user equipment the control messages being required for an application running on the user equipment. The method includes determining a first value being indicative for a mobility characteristic of the user equipment and a second value being indicative for a data traffic characteristic of the user equipment, comparing the first value and the second value, setting a release timer based on the comparison, and controlling the radio resource control connection based on the release timer, wherein the radio resource control connection will end upon expiry of the release timer.

Abstract: Provided is a method for moving carried out by a terminal in a wireless communication system. The method comprises estimating mobility status of the terminal, detecting a neighboring cell, calculating an expected dwell time in the neighboring cell which is detected, determining whether to set an adaptive mobility condition on the basis of the expected dwell time, and moving on the basis of the adaptive mobility condition when the adaptive mobility condition is determined to be set.

Abstract: An early BSIC (base station identity code) abort procedure includes comparing a first signal strength of a serving cell with a first threshold and comparing a second signal strength of a target cell to a second threshold. The first threshold is a sum of a network indicated threshold and a user equipment (UE) threshold. The second threshold is a difference between the network indicated threshold and the UE threshold. When the first signal strength is below the first threshold and the second signal strength is above the second threshold, the base station identity code (BSIC) procedure is initiated. A number of BSIC failure attempts is adaptively set before terminating the BSIC procedure.

Abstract: The invention proposes a method and corresponding apparatuses for handing over a video conversation from a PS domain to a CS domain in a radio network. When signals of a network covered by the packet switch domain where the video conversation currently locates in are not good or become unavailable, as long as source MME and eNodeB detect the presence of video conversation, a procedure of handover to circuit switch domain for video bearer will be initiated, and a handover request will be transmitted to MSC server. After receiving the handover request, a control equipment in the circuit switch domain will request for resources to a target radio network requesting for the allocation of necessary communication link to the video bearer.

Abstract: A method and apparatus for managing common measurement gaps in multimedia broadcast multicast services (MBMS) cells are described. In one embodiment, a broadcast channel (BCH) common measurement gap is determined for use by a plurality of wireless transmit/receive units (WTRUs) in an MBMS cell. The BCH common measurement gap is assigned to the WTRUs, and the BCH common measurement gap is transmitted to the WTRUs. In another embodiment, a paging channel (PCH) common measurement gap is determined for use by a plurality of WTRUs in an MBMS cell. The PCH common measurement gap is assigned to the WTRUs, and the PCH common measurement gap is transmitted to the WTRUs.

Abstract: Various aspects of the present disclosure provide methods and apparatuses that may provide for more efficient usage of time-to-trigger (TTT) timers in a wireless communication system, such that stopping or resetting of the TTT timer in response to receiving various measurement control messages (MCMs) can be limited to times when such stopping or resetting is appropriate.

Abstract: An access point is identified based on a plurality of pilot signatures. Here, in addition to transmitting a pilot signal that is encoded (e.g., spread/scrambled) using a particular pilot signature, an access point transmits a message that includes at least one indication of at least one other pilot signature. For example, an access point may use one PN offset to generate a pilot signal and transmit a message that identifies at least one other PN offset. An access terminal that receives the pilot signal and the message may then generate a pilot report that identifies all of these pilot signatures. Upon receiving a handover message including this pilot-related information, a target network entity with knowledge of the pilot signatures assigned to that access point may then accurately identify the access point as a target for handover of the access terminal.

Abstract: Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point.

Abstract: A method, server and terminal for providing a Voice Call Continuity (VCC) service, are discussed. According to an embodiment, the terminal includes a storage unit to store operator policy information and user preference information, the user preference information including domain selection information specifying a user-preferred domain to be used when originating the outgoing call from the terminal, the operator policy information including domain selection information specifying a network-preferred domain to be used when originating the outgoing call from the terminal; and a controller to perform a domain selection for the outgoing call based on the user preference information or the operator policy information.

Abstract: The present invention relates to a method and apparatus for supporting location registration and mobility for each service flow in relation to a Mobile Node (MN) having a plurality of wired/wireless network interfaces in a wired/wireless integrated network environment. A method includes receiving a location registration message from a specific Handover Control Agent (HCA) connected to an MN, determining a movement of a flow, configured in another HCA to which the MN is connected, based on predetermined static flow binding information or a network status, sending a location registration Ack. message, comprising information on a HCA in which the flow is configured and to which a Corresponding Node (CN) is connected, to the specific HCA, and sending a location notification message, comprising information on the specific HCA to which the flow will be moved and to which the CN is connected, to the HCA.

Abstract: Disclosed is a method for executing communication in a wireless communication system supporting multi-radio access technology, through cooperation between a first terminal requesting terminal cooperation and a second terminal accepting terminal cooperation. The method comprises: a step for the first terminal to transmit to a base station resource allocation request information on the uplink transmission of the second terminal; a step for the second terminal to receive from the base station a first uplink grant (UL grant) as a response to the resource allocation request information; a step for the first terminal to transmit data to the second terminal; and a step for the second terminal to transmit to the base station the data received from the first terminal using the resource allocated by the first UL grant.

Abstract: A method, apparatus and computer program product are provided in order to trigger a reselection of a serving cell in an instance in which a mobile terminal may be creating neighbor cell interference. Based upon received reselection data, the mobile terminal may release and/or suspend a network resource, such as an enhanced dedicated channel in order to trigger a reselection of a new serving cell. In this regard, a method is provided that includes determining the presence of a reselection condition based on reselection data. In an instance in which the presence of the reselection condition is determined, the method includes causing a network resource to be modified. The method also includes causing a reselection of a serving cell.

Abstract: A mobile communication system and method for managing the base station identifiers is provided. The method includes transmitting macro base station information from a terminal to a first pico base station; transmitting a Neighbor Relation Table (NRT) including the macro base station information from the first pico base station to a Self Organizing Network (SON) server; determining, at the SON server, whether a second pico base station using same Physical Cell Identifier (PCI) as the first pico base station exists by comparing a previously stored NRT with the received NRT; and reallocating, at the SON server, upon determining that the second pico base station uses the same PCI as the first pico base station, new PCIs to the first and second pico base stations.

Abstract: The present invention relates to a mobile communication system having a coordinated communication mode in which radio communication is performed between a user equipment and a plurality of base stations in a coordinated manner and an uncoordinated communication mode in which radio communication is performed between a user equipment and a base station without coordinating with another base station, in which radio communication is performed by selectively using any of the coordinated communication mode and the uncoordinated communication mode.

Abstract: Transmissions by a first access point (e.g., a femto cell) are restricted upon detecting an access terminal in the vicinity of the first access point in the event the access terminal is communicating with a second access point (e.g., a macro cell). Upon detection of such an access terminal, the access terminal restricts transmission (e.g., beacon transmission) on a downlink carrier frequency on which the access terminal is actively receiving information from the second access point. This restriction of transmission by the access point may involve, for example, temporarily reducing transmit power, reducing the periodicity of transmission, or ceasing transmission.

Abstract: Provided is a network access management method of a terminal, the method including determining whether a terminal located adjacent to a railway dedicated wireless communication network is a common terminal or a railway dedicated terminal, based on a unique identifier (ID) of the terminal, and handing over the terminal to a different communication network allowing an access based on a result of the determining.