Abstract: When a wireless communication apparatus capable of directly communicating with another communication apparatus performs communication via an access point, the wireless communication apparatus shares communication setting information with the other communication apparatus, the communication setting information being information for performing direct communication with the other communication apparatus without using that access point. If a radar signal is detected during communication with the other communication apparatus via the access point, switching to direct communication with the other communication apparatus is made based on the shared communication setting information.

Abstract: Various embodiments are described to address some of the inefficiencies in present-day network initiated handovers. A serving node (121) sends a first message requesting a remote unit (101) to handover but does not indicate any network nodes to which to handover and then receives, in response, a second message indicating a target node (e.g., 122) preferred for handover by the remote unit. The serving node then notifies the target node of a potential handover by the remote unit and sends a third message to indicate to the remote unit to proceed with a handover to the target node. By first obtaining a preferred handover target from the remote unit and then notifying that target node, a network initiated handover may be accomplished more efficiently than by using the known technique of notifying prospective nodes prior to obtaining any acceptance or preference from the remote unit.

Abstract: If a handoff by a mobile station currently associated with a particular access point is probable, then the particular access point sends an activation alert to one or more other access points. An access point receiving the activation alert that is in a low-power state enters a higher-power state. An access point receiving the activation alert that is in a higher-power state, remains in that higher-power state.

Abstract: The present application describes embodiments of a method and apparatus for determining handover parameters in a wireless overlay network. One embodiment includes modifying a bias value used to determine when to handover user equipment between a macrocell and a femtocell that overlays the macrocell. The bias value is modified in response to a change in one or more handover frequencies associated with the user equipment. Handovers of user equipment are triggered when a sum of the bias value and a measured value of the femtocell signal strength exceed a measured value of the macrocell signal strength.

Abstract: A mobile station UE is provided with an access right management unit for managing a CSG-ID corresponding to a CSG cell which permits the mobile station UE to access thereto, a measurement unit for measuring the radio quality of a CSG cell defined as an object to be measured, and a measurement report transmission unit for, only when the radio quality of a CSG cell corresponding to the CSG-ID managed by the access right management unit out of the radio qualities of CSG cells measured by the measurement unit satisfies a report condition, transmitting a measurement report including at least the radio quality of the CSG cell corresponding to the CSG-ID.

Abstract: The present invention provides method and arrangements for dynamically and automatically obtaining a macro layer TA footprint for a femtocell, i.e. the femtocell's location in relation to the macro layer TAs, and to use this information to minimize signaling load from Tracking Area Updating in conjunction with femtocells.

Abstract: An entity, such as a base station, in a wireless communications network performs power control of a control channel based on one or more characteristics of a message in the control channel. For example, the control channel can be a paging channel. The one or more characteristics include, as examples, the size and/or the type of message in the control channel.

Abstract: A radio communication apparatus includes a radio communication unit which searches a connectable radio access network to be connected to at least one radio access network and receives broadcast information of the connected radio access network, and a control unit which connects the radio access network to the first radio access network detected by the search, checks whether or not the broadcast information includes time information, and connects the radio communication unit to a second radio access network detected by the search if the broadcast information does not include the time information.

Abstract: The present invention relates to methods and arrangements in a wireless communication system that enable a load balancing procedure in a network with HeNB GWs. The problem of the ineffective conventional load balancing procedure when used in a network with HeNB GWs, is addressed by a solution where the HeNB includes (510) an explicit indication of the reason for radio link establishment (load balancing establishment cause) in the S1AP INITIAL UE MESSAGE message (511) used to establish the S1 signaling connection associated with a user equipment to an MME, so that the HeNB GW (550) can perform an accurate MME selection based on the knowledge that the establishment is due to load balancing, i.e. an MME selection that realizes the required inter-MME load balancing.

Abstract: A wireless communication method and apparatus for selecting cells in an orthogonal frequency division multiple access (OFDMA) system are disclosed. A wireless transmit/receive unit (WTRU) measures a downlink path loss of a current serving cell and at least one other cell. The WTRU determines whether a path loss difference between the serving cell and the other cell is below a threshold. If the path loss difference is below the threshold, the WTRU measures a channel quality indicator (CQI) for each of the plurality of subcarrier blocks in the downlink of the current serving cell and the other cell, respectively. The WTRU reports the CQIs to a serving Node-B which selects a new cell based on the CQIs. Alternatively, a centralized access gateway (aGW) may select the new serving cell/Node-B, or the cell selection decision made by the serving Node-B may be forwarded to another Node-B via the centralized aGW.

Abstract: Disclosed is a multi-mode multi-band mobile communication terminal and a mode switching method thereof wherein a mode switching can be performed between an asynchronous network and a synchronous network by minimizing interruption in communication. According to the switching method of a multi-mode multi-band mobile communication terminal, the power of a signal received from an asynchronous network or a synchronous network is measured and the measured power of the received signal drives a modem portion, thereby switching the mode of the mobile communication terminal.

Abstract: A radio connection is supported between the mobile station and a source base station associated with a source cell. The mobile station transmits information to the source base station over a shared uplink data communications channel used by multiple mobiles. A handover message is received from the source base station indicating that the source base station has initiated a handover of the radio connection over to a target base station for the target base station to support the radio connection. The handover fails. In response, a message is sent from the mobile station to the source base station requesting that the source base station continue to support the radio connection without requiring the mobile station to perform a radio channel procedure competing with other mobile stations requesting a new radio connection be supported by the source base station.

Abstract: A radio base station (T-eNB) is configured to set up a data forwarding tunnel for forwarding user plane data to the radio base station (T-eNB) only for an access bearer for which the user plane data to be forwarded exists, when receiving a notification from a handover-source radio base station (S-eNB) as to whether or not the user plane data to be forwarded exists for each access bearer. The notification being made by using a handover request message for the mobile station (UE), and the access bearer being set up between the radio base station (T-eNB) and a upper level node (SGW).

Abstract: Provided is a handover originating base station which transmits data to a handover destination base station, for performing mobile communication terminal handover in a mobile communication system. The handover originating base station is provided with a means for transmitting data whose transmission is not confirmed by a communication terminal, with information which indicates data transmitted just before.

Abstract: A method for voice call fallback to a circuit switched (CS) domain disclosed in the present invention includes: receiving a Service Request message from a calling user equipment (UE), where the Service Request message includes called number information of a voice call in a CS domain, instructing an evolved NodeB (eNB) to initiate circuit switched fallback (CSFB) handover; receiving a Handover Request message from the eNB, where the Handover Request message includes information required for CS handover, selecting a mobile switching center (MSC) and sending a packet switched (PS) to CS Handover Request message to the MSC, where the PS to CS Handover Request message carries information required for the CS handover and a called number so that the MSC calls a called UE. The corresponding apparatuses and systems are also disclosed. The technical solution of the present invention can reduce the connection delay.

Abstract: A radio base station 100 according to the present invention notifies a radio base station 200 of a communication level of an application in execution by a radio communication terminal 300, when handoff of the radio communication terminal 300 from the radio base station 100 to the radio base station 200 is performed. To the radio communication terminal 300, the radio base station 200 transmits information for controlling a reverse link communication rate from the radio communication terminal 300 on the basis of the communication level. The radio communication terminal 300 controls the reverse link communication rate on the basis of the information notified by the radio base station 200.

Abstract: The present disclosure provides for a method for allocating by a plurality of source base stations of a cellular wireless communication support infrastructure a temporary resource request identifier to a wireless communication device for accessing a target base station. The method includes identifying a list of temporary resource request identifiers associated with the target base station for use by one or more wireless communication devices, wherein the list includes a subset of one or more part time temporary resource request identifiers whose respective assignment to a corresponding grouping of one or more source base stations at a particular time is rotated between more than one of the plurality of corresponding groupings of one or more source base stations.

Abstract: A method and apparatus is disclosed whereby location based information (LBI) is used to make access and routing decisions within a network. Such LBI is sent from mobile devices to the core network when the mobile device registers with the network and is updated periodically. Over time, this collected LBI data represents the position of mobile devices over time and periodic patterns of usage in different geographic areas. When a network receives an indication that a mobile device requires registration with the network, the network determines as a function of said LBI, a desired network access technology to use to connect said mobile device with the network. Instructions are then transmitted to the mobile device to establish a connection using said desired network access technology and the device is registered with the network. Dynamically updated LBI information from mobile devices is also used for IP network routing optimization.

Abstract: The present invention relates to mobile communication technologies, and discloses a method and a device for handover between User Equipment (UE) in a process of sending a message to enable the after-handover UE receive messages accurately. The method includes: receiving a UE handover request sent by a before-handover UE, wherein the UE handover request carries an identifier of an after-handover UE and indication parameters for sending a message; and sending the message to the after-handover UE according to the identifier of the after-handover UE and the indication parameters for sending the message. The embodiments of the present invention are applied to handover between UEs in the process of sending a message.

Abstract: A method, apparatus and computer program product are therefore provided that may enable a network sending broadcast and/or dedicated priorities to a mobile terminal to also include priorities with respect to a RAT that does not support the priority algorithm. As such, for example, priority parameters for a legacy network that does not support the priority algorithm may be supplied to a mobile terminal to enable the mobile terminal to make cell reselection decisions without running two different cell reselection algorithms in parallel (e.g., a ranking based algorithm and a priority based algorithm). The provided method includes the steps of receiving an indication of a plurality candidate cells with respect to said cell reselection of a mobile terminal; assigning, toward each of said plurality of candidate cells, a priority, wherein at least one candidate cell of the plurality of candidate cells does not support priority based cell reselection; and providing said priorities to said mobile terminal.

Abstract: Disclosed is a method of controlling a session in a serving server taking charge of the control plane within a mobile communication network.

Abstract: A wireless communication network makes intelligent accept/reject decisions responsive to sector selection requests by mobile stations based on sharing per-sector loading information and per-sector mobile station received signal quality information. For example, the signal quality and sector loading information for each sector in a given mobile station's active set of sectors can be evaluated to determine whether the sector targeted by the mobile station for selection as its new serving sector for high-speed packet data service is the “best” sector for serving the mobile station. The network can identify the “best” serving sector based on one or more metrics. If the targeted sector is not the best one for serving the mobile station, the network sends a reject message, or it may send a redirect message pointing the mobile station to the best serving sector. The disclosed accept/reject processing advantageously applies to cdma2000 and W-CDMA networks, for example.

Abstract: A method for managing an attempted connection between a home base station (HBS) and a device not registered with the HBS is provided. The method includes transferring the connection when the attempted connection can be transferred to a traditional base station. When the attempted connection cannot be transferred to a traditional base station, it is determined whether a portion of the resources of the HBS can be used by the device not registered with the HBS. When a portion of the resources can be used, the portion is used. When a portion of the resources cannot be used, the attempted connection is not completed.

Abstract: A communication apparatus according to the present invention is provided with a mobile station 10, a packet transfer apparatus 50, and an access point 70 which relays between the mobile station 10 and the packet transfer apparatus 50. The cellular side access point 70 transmits a tunnel switch request to the second radio network area, when an authentication processing for establishing a secured connection between the mobile station and the second radio network succeeds, and when the mobile station changes from the first radio network area to the second radio network area.

Abstract: In a Long Term Evolution (LTE) cellular radio system method of selecting a physical cell id (PCI) of a LTE cell is obtained by reporting PCIs of neighbors and also a parameter indicating each neighboring cell's relevance also termed visibility to the cell. A new cell added in a cellular radio, system can then make an improved selection of a PCI already at the very first neighbor relation establishment; even if all available PCIs are already used in the vicinity.

Abstract: The present invention discloses a method for acquiring information of a home NodeB, a method for balancing load, and implementation apparatuses thereof, which are used to solve the problem how to guide a UE to move to an appropriate home NodeB when a macro cell performs load balancing. In the present invention, information of a target NodeB is acquired actively through a macro NodeB, and according to an access type of the target NodeB, subscribers of the macro NodeB are timely balanced to the home NodeB which can provide services, thereby reducing a call drop rate resulted from blind handover. Since measurement information of the UE is fully considered, success rate of balancing handover is enhanced, and the object of performing effective load balancing in a home NodeB environment is achieved.

Abstract: A network element for a wireless communication system that supports a plurality of access points providing communication in small cells is described. The network element comprises a signal processor arranged to: receive and process information from a plurality of access points wherein the received information identifies a macro cell visible to a respective access point; and calculate a degree of correlation of the information from the at least two access points based at least partly on the processed macro cell information provided by the respective access point.

Abstract: There are provided measures for enabling an inter-cell device discovery in device-to-device communication. Such measures may exemplarily include observing, at a device residing in a cell representing a serving cell of said device, a device-to-device discovery signal from another device residing in another cell representing a non-serving cell of said device, and modifying at least one of one or more cell reselection parameters referring to the serving cell of said device and one or more cell selection parameters referring to the non-serving cell of said device on the basis of the observed device-to-device discovery signal.

Abstract: A random access method, an evolved Node B (eNB), and a terminal equipment are provided. The method includes: determining target component carriers to which a User Equipment (UE) is to be handed over, and notifying the UE of information about the target component carriers through a source eNB; and after receiving a dedicated random access preamble sent by the UE, sending a random access response message on at least one component carrier in the target component carriers. The terminal equipment includes: a handover command receiving unit, a sending unit, and a random response receiving unit. Therefore, in a random access procedure of cell handover, the eNB is capable of determining downlink component carriers that a UE monitors, thereby increasing utilization rate of downlink resources.

Abstract: Methods and apparatus to process signal strengths of not allowed cells during cell reselection are disclosed. An example cell reselection method disclosed herein comprises obtaining cell information indicating whether signal strength of a first neighbor cell not allowed for cell reselection is to be considered during cell reselection, and reselecting to a second neighbor cell different from the first neighbor cell based on the cell information.

Abstract: The invention relates to a method for reconfiguring zones of a cell sector in a cellular mobile communication system employing a frequency division multiplex access scheme comprising the steps of separating a cell sector into zones of a predetermined size, allocating radio resources to users located in the zones, and altering the predetermined zone size upon a change of a radio resource management parameter. The invention also relates to a base station of a cellular mobile communication system.

Abstract: The present invention relates to a wireless communication system and a terminal providing a wireless communication service and to a method by which a base station and a terminal transmit and receive data in an evolved universal mobile telecommunications system (E-UMTS) evolved from universal mobile telecommunications system (UMTS) or a long term evolution (LTE) system, and more particularly, to a method whereby, in requesting allocation of radio resources by a user equipment (UE), which has been allocated continuous allocation radio resources, from a base station, the UE compares an allocation time point of continuous allocation radio resources and a start time point of a radio resource request procedure and effectively transmit a radio resource allocation request.

Abstract: A cell reselection parameter is transmitted on one carrier frequency for a defined period of time to cause access terminals operating on that carrier frequency to more aggressively search for access points on at least one other carrier frequency. For example, a femto cell operating on one carrier frequency may transmit a broadcast channel including a cell reselection parameter such as Sintersearch on another carrier frequency that is used by a macro cell. Here, the value of the cell reselection parameter (e.g., Sintersearch) is chosen so that the access terminals will more aggressively conduct inter-frequency searches. In addition, the cell reselection parameter is transmitted for a period of time that ensures that a nearby access terminal will receive the parameter during its wakeup interval.

Abstract: Each mobile station device (12) includes: a subchannel allocation refusal determining section (50), which determines a subchannel refused to be allocated from a base station device (10), based on a communication quality measured for each subchannel by a communication quality measuring section (44); an RMAP creating section (52), which creates refused channel information (RMAP information) indicating the subchannel determined to be refused to be allocated; and a transmitting section (54) which gives notice of the created RMAP information to the base station device (10).

Abstract: Embodiments of the present invention disclose a base station handover method, which includes: detecting, by a base station controller, that a mobile terminal is handed over from a first base station with low configuration to a second base station with high configuration; and instructing, by the base station controller, the mobile terminal to switch a radio configuration mode between the mobile terminal and the second base station to a high-capacity radio configuration mode. The embodiments of the present invention further disclose a base station controller and a mobile terminal. By adopting the embodiments of the present invention, the capacity of a base station can be increased.

Abstract: A wireless terminal that can connect to a plurality of networks makes a request for a connection to a management server. The management server holds network information about unchanging service characteristics of a plurality of networks constituting a wireless communication area. The management server selects networks satisfying a request condition of a wireless terminal that has requested a connection based on the network information and notifies the selected networks, as candidates for connection, to the wireless terminal. The wireless terminal measures changing service characteristics of the candidates for connection notified from the management server, selects a network from the candidates for connection based on a measurement result, and connects to the selected network.

Abstract: A method and system for helping to avoid communication errors, by ensuring that when a connection identifier (such as a Walsh code or MAC Index) is being assigned to a wireless access terminal for use in a wireless coverage area having a particular coverage-area identifier (such as a particular PN offset), the same connection identifier is not currently assigned to another access terminal in another nearby coverage area that has the same coverage-area identifier.

Abstract: A communication system and a method for the same is disclosed. In the method a first type of communication services is provided for a station (1), wherein a first network entity (3) provides control operations for the provision of the communication service. A part of said control operations is then relayed from the first network entity (3) to a second network entity (4). Information is exchanged between the first and second network entities, said information associating with provision of a second type of communication services for the station. A communication service of said second type is provided for the station based on said information.

Abstract: A method, apparatus and computer program product are provided for supplying information regarding a neighbor cell following cell reselection in a manner that reduces the signaling load on the network and conserves battery consumption by a mobile terminal. In this regard, the method, apparatus and computer program product do not blindly provide information regarding a neighbor cell that the current cell has already collected, but, instead, first determines if the neighbor information regarding a prior cell is different than and therefore will add to the information regarding neighbor cells that is already maintained by the current cell. Only after making such a determination may a mobile terminal signal the current cell as to the availability of neighbor information regarding a prior cell.

Abstract: A base station, a communication system and a handover destination determination method for determining a target base station that is highly likely to be able to perform a MIMO communication, are provided. According to the present invention, a base station 103a includes a base station control unit that, for handover of a radio communication terminal 101, determines a neighboring base station capable of performing the MIMO communication based on position information of the radio communication terminal 101 and MIMO communication available area information of neighboring base stations 103b and 103c adjacent to the base station itself.

Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.

Abstract: A radio access network (RAN) includes a plurality of reverse-link channel elements for receiving signals and a plurality of forward-link channel elements for transmitting signals. The RAN may detect a fault condition in a signal transmitted by a mobile station and received through a reverse-link channel element or in a signal transmitted through a forward-link channel element and received by a mobile station, for example, based on a frame error rate in the received signal exceeding a threshold. The RAN may determine whether a radio frequency (RF) condition accounts for the fault condition. If the RF condition does not account for the fault condition, the RAN may allocate a second channel element such that the signal is received or transmitted through two different channel elements. If the second channel element improves the quality of the received signal, the BTS may discontinue use of the first channel element.

Abstract: A WLAN client device maintains a history of profile-location associations. An association links a profile stored in the client device with a location in the vicinity of which the client device was connected to a wireless local area network matching the profile. While in a vicinity of a certain location, the client device may scan for wireless local area networks in a manner that takes into account records of the history that include the certain location.

Abstract: A system that selects an optimum codec flexibly adapting to a change in the communication environment and to switch to the optimum codec during communication. A communication control system includes a handover detection unit detecting a handover in which a communication terminal present in a communication area formed by a BTS moves from the communication area to a communication area formed by another BTS, an information acquisition unit acquiring, if the handover detection unit detects a handover, information based on the handover for use in codec switching, a codec selecting unit selecting a codec after switching based on the information acquired by the information acquisition unit, and a codec switching unit controlling such that the codec after switching that is selected by the codec selecting unit is applied to the communication currently performed.

Abstract: Disclosed herein is a call processing system and method for mobile communication terminals. The call processing system for mobile communication terminals according to the present invention includes a gateway location register (130) for generating a Database (DB) for an international roaming service subscriber. A roaming control unit (120) registers a location of a mobile communication terminal (101), determines whether a call originates using a primary number or a secondary number in the international roaming service on a basis of originating service provider information and a called number, included in a call origination signal from the mobile communication terminal, and sends a signal corresponding to a result of the determination to a mobile switching center of a network in which the mobile communication terminal is located. The international roaming service assigns a primary number in a home network and assigns a secondary number in a partner network.

Abstract: A base station device includes a processing unit that performs a base station process on a mobile terminal and a core network device; a cellular communication unit for connection to the mobile terminal; and a connection control unit, wherein the cellular communication unit receives a connection request message for connection to an external network from the mobile terminal, the base station processing unit replaces an access point name of the connection request message with “APN-L” and transfers the connection request message to a mobility management entity when the access point name indicating a local network is other than APN-L, and the connection control unit performs a radio bearer setting process between the mobile terminal and the connection control unit, based on a context setup request message in which the “APN-L”, having a bearer established, received from the mobility management entity is stored.

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: A communication system is described in which a handover procedure is provided to allow a mobile device to transfer from a home base station connected to a core network via a home base station gateway to another base station not coupled via the home base station gateway. A novel extension to the handover procedure is provided in which the home base station gateway is informed of the transfer of the mobile device, allowing context and resources assigned to the mobile device at the base station gateway to be released.

Abstract: A method of handling system information reception for a mobile device capable of multiple connections in a wireless communication system, the method includes acquiring system information of at least a cell when a radio resource control (RRC) message for connection establishment related to the cells is received from a first cell having at least a connection with the mobile device.

Abstract: An object of the invention is to provide a wireless communication system in which the load of each cell and interference between cells are taken into account. In a handover-candidate base station and a handover-source base station, parameters for interference-reducing scheduling and handover facilitating processing are adjusted based on the mutual load information. When the handover-candidate base station, to be used for load balancing, is a large-diameter cell, transmit power control and frequency scheduling are adjusted by taking account of the load state at a cell edge. When the handover-source base station has a small-diameter cell, the number of terminals to be handed over is adjusted by taking account of the load state of the handover-candidate base station. Thus, both of interference control and load balancing are achieved.