Abstract: A method for automating actions within a network includes receiving at least one wireless signal from at least one wireless network device; determining identifying information associated with the at least one wireless signal; determining a scanned wireless fingerprint associated based upon the identifying information; matching the scanned wireless fingerprint to a stored wireless fingerprint; and initiating an action in response to matching of the scanned wireless fingerprint to the stored wireless fingerprint.

Abstract: Automated PilotPN code conflict resolution using an access point with the assistance of one or more access terminals is disclosed. An exemplary method includes determining a set of access points, as well as determining a set of PilotPN codes used by the set of access points. Detection is then made concerning whether at least two access points of the set of access points have conflicting PilotPN codes. A first PilotPN code is allocated to one of the at least two access points having conflicting PilotPN codes. Additionally, one or more other PilotPN codes, which are distinct from the first PilotPN code, are allocating to remaining access points of the at least two access points having conflicting PilotPN codes. Corresponding apparatus and other exemplary methods are also disclosed.

Abstract: A method of enabling a soft handoff in a communication system, wherein the communication system includes a plurality of sectors and each of the plurality of sectors includes at least one base station is disclosed. The method includes: providing at least one mobile station; setting identical resources for serving the mobile station from each of the plurality of base stations in each sector; designating at least a plurality of base stations in at least one sector to participate a soft handoff; and performing a soft handoff.

Abstract: It is described a method for transmitting a synchronization signal within a cellular telecommunication network. The method includes activating a first base station of the cellular telecommunication network, informing at least one second base station, which is a potentially interfering base station with respect to the first base station, about the activation of the first base station, and broadcasting the synchronization signal by the at least one second base station with a temporarily increased transmitting power. It is further described a second base station for transmitting a synchronization signal to another base station of the cellular telecommunication network and a central network element, which is adapted to prompt a base station in order to transmit a synchronization signal. Furthermore, it is described a program element, which is adapted for controlling the described synchronization signal transmitting method.

Abstract: Methods of handing off an access terminal in a meshed wireless system is disclosed. Data that is received by an access point in the meshed wireless system may be routed to an access terminal via a downstream serving access point. The access point may also be configured to communicate a connection state of the access terminal to a target access point if a handoff of the access terminal from the serving access point to the target access point is requested.

Abstract: A base station node (BS) of a heterogeneous radio access network comprises a terminal locator (34) and a scheduler (36). The terminal locator (34) obtains an indication of location of a wireless terminal (30) in a cell served by the base station (BS), e.g., whether the wireless terminal (30) is in a center region (M) or an edge region (E) for the cell served by the base station node (BS). The scheduler (36) uses the indication of location to assign to the wireless terminal (30) a frequency of a frequency bandwidth usable by the heterogeneous radio access network. The scheduler (36) assigns a frequency from a partitioned portion of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in an edge region of a micro cell. The scheduler (36) also assigns a frequency of the frequency bandwidth if the cell served by the base station node is a micro cell and the wireless terminal is in a center portion of the micro cell.

Abstract: A system, apparatus and method for flexible sectorization in a wireless communication system are disclosed. For example, a system for flexible sectorization in a wireless communication system is disclosed. The system includes a base communication unit, a plurality of first communication link sector generation units coupled to the base communication unit, and at least a second communication link sector generation unit coupled to the base communication unit. Each communication link sector generation unit is configured to generate at least one associated sector for radio coverage, and the number of first communication link sector generation units is not equal to the number of second communication link sector generation units.

Abstract: At least one feature provides a way to perform point-to-multipoint transmissions using adaptive or directional antennas while reducing antenna pattern distortion. Generally, rather than transmitting the same waveform to two or more receivers, an information-bearing signal is transformed into different decorrelated waveforms and each decorrelated waveform is transmitted to a different receiver. In one implementation, an information-bearing signal is transformed into two decorrelated signals such that their crosscorrelation, or autocorrelation of the information-bearing signal, is zero or very small. Such decorrelation may be achieved by sending a first signal to a first receiver while sending a second signal, having a radio frequency spectrum that is the spectrally inverted version of the first signal, to a second receiver. In another implementation, a first signal is transmitted to a first receiver and is also transmitted to a second receiver with a time delay.

Abstract: A wireless communication system includes: at least one base station that forms a plurality of cells of different frequencies such that the cells partially or completely overlap with each other; and a terminal that is capable of recognizing the cells of the different frequencies. The base station determines priority factors of the different frequencies of the cells, and transmits the priority factors to the terminal that has set a cell formed by the base station as a serving cell. The terminal receives the priority factors from the base station forming the serving cell, and selects a cell to be set as the serving cell next from among the cells based on the priority factors.

Abstract: Various arrangements for managing wireless network communication are described. Two cells using different radio access technologies (RATs), such as a 3G cell and a 4G cell, may provide overlapping coverage. A first cell using a first RAT, under certain circumstances, may be permitted to enter a powered down state such that less power is consumed. User equipment may communicate with the cell using the second RAT as the preferred network and only communicate with the cell using the first RAT when a service available through the first RAT but not the second RAT has been requested. Upon a request from the second cell, the first cell may enter a powered up state.

Abstract: A propagated control channel signal for use in a shared radio access network is disclosed. The control channel signal comprises common control data for use by mobile terminals authorized to access the shared radio access network and operator-specific data for use by those of the mobile terminals that are associated with a first mobile operator. The common control data may comprise handover-related data for handovers within the shared radio access network and the operator-specific data may comprise handover-related data for handovers from the shared radio access network to an unshared radio access network having overlapping coverage with the shared radio access network. The common control data and the operator-specific data may comprise values for one or more mobile terminal settings, wherein the operator-specific values are for use instead of the common values by those of the mobile terminals that are associated with the first mobile operator.

Abstract: A user apparatus in a mobile communication system includes: a unit configured to receive a downlink control signal using a frequency of a residing cell; and a unit configured to perform cell search using a frequency different from the frequency of the residing cell during an interval between reception timings of the downlink control signal in response to an occurrence of a predetermined event for different frequency measurement in the user apparatus or a base station apparatus. When the reception timing interval of the downlink control signal is not longer than the threshold reported from the base station apparatus, and when the predetermined event for different frequency measurement occurs in the user apparatus or the base station apparatus, different frequency measurement is performed in a cycle, different from the reception timing interval, reported from the base station apparatus.

Abstract: A method for facilitating inter-system handover by a multi-mode wireless transmit/receive unit (WTRU) is disclosed. The WTRU is capable of communicating in multiple wireless communication systems using different wireless communication protocols. A first wireless communication system provides a hot spot within the coverage area of a second wireless communication system. A base station in a cell in the second wireless communication system generates and transmits a message to inform the WTRU of the existence of the hot spot located in the vicinity of the cell. The WTRU receives the message and is therefore informed of the existence of the hot spot in the vicinity of the cell.

Abstract: A method of providing a handover service to a mobile communication terminal supporting multi-modal communications, and a mobile communication terminal for performing the method are provided. More particularly, a method of eliminating an interruption of a data transmission service occurring during a handover between different communication networks, and a terminal for performing the method are provided. A method of providing a handover service of a mobile communication terminal supporting multi-modal communications can include: transmitting and receiving data to/from a corresponding node via a first access network and a second access network while simultaneously maintaining an association with the first access network and the second access network, determining a point in time of completing a handover registration, and releasing an association with the first access network after the point in time of completing the handover registration.

Abstract: A mobile telephone device includes: an instruction reception unit which, when a predetermined communication is transferred to a CDMA communication system, receives a handover instruction signal in the LTE communication system; a communication request unit which, when the signal is received, captures the CDMA communication system and requests a start of the communication; a communication processing unit which, when receiving an enabling signal for the request, performs communication in the CDMA communication system; and a storage unit which, when the enabling signal is not received, stores a combination of calling zones of both communication systems; wherein when a combination of a calling zone of the CDMA communication system newly captured in accordance with a new handover instruction and a calling zone in the LTE communication system matches with the stored combination, the communication request unit requests the start of the communication after performing a new location registration.

Abstract: A communication method of a macro base station including reporting information about a broadcast channel section in order to identify a femtocell in the macrocell, is provided. The macro base station receives position information of a mobile terminal and a request for information about neighboring femto base stations from the mobile terminal, when the mobile terminal identifies an accessible femto base station in the broadcast channel section. The macro base station generates a list of the neighboring femto base stations and information about the neighboring femto base stations based on the position information of the mobile terminal, and transmits the list and the information about the neighboring femto base stations to the mobile terminal.

Abstract: There is provided a communication control device including a radio communication unit communicating with a terminal device, a network communication unit accessing any one of a plurality of gateway apparatuses through a network and relaying communication between the terminal device and the gateway apparatus, and a control unit switching the gateway apparatus to be accessed by the network communication unit.

Abstract: A first roadside equipment operates as a transmitting/receiving mode in a control channel interval of an Nth synchronization interval so as to support a handover. In this instance, a second roadside equipment neighboring to the first roadside equipment operates as a receiving mode in the control channel interval of the Nth synchronization interval. The first roadside equipment operates as the receiving mode in a control channel interval of an (N+1)th synchronization interval. In this instance, the second roadside equipment operates as the transmitting/receiving mode in the control channel interval of the (N+1)th synchronization interval.

Abstract: A wireless communication system includes a plurality of mobile stations and a base station which periodically receives a predetermined kind of information from one or more registered mobile stations registered in the base station among the plurality of mobile stations via a radio channel shared among the registered mobile stations. The base station determines a transmission interval of the information for the registered mobile stations in accordance with the number of the registered mobile stations, allocates transmission timings of the information for the registered mobile stations to be different among the registered mobile stations in the transmission interval, and notifies the registered mobile station of the transmission interval and the transmission timing. Each one of the registered mobile stations periodically sends out the information to the radio channel in accordance with the transmission interval and the transmission timing.

Abstract: The disclosed mobile communication method is a mobile communication method in a mobile communication system, wherein at least a part of a macro-cell (#A), with which first broadcast information is transmitted at a first frequency, and a femto cell (#a), in which second broadcast information is transmitted at a second frequency, overlap geographically. The method has step in which a wireless base station (#a) for a femto cell that manages the femto cell (#a) detects the first broadcast information, step in which the wireless base station (#a) for a femto cell transmits guiding broadcast information at a first frequency in response to detection of the first broadcast information, and step (C) in which a mobile station (UE #1) that is communicating in the macro-cell (#A) performs handover to the femto cell (#a) when the guiding broadcast information is detected.

Abstract: A system and method are described for reducing congestion in a wireless network. A wireless base station becomes congested when substantially all of the available base station airlink resources are being used during a period of time. It is useful, however, to distinguish between periods of congestion with few users and periods where a larger number of users are using the base station. When there are few users a congestion situation is not necessarily a problem, while it is more likely that users' quality of experience and quality of service suffers as the number of users increases. This system and method determines when a base station is congested and implements a congestion prime management scenario when the number of active users is above an activity threshold.

Abstract: A system and methodology that facilitates efficiently and accurately defining operating parameters for a femto access point (FAP) is provided. In particular, during provisioning of the FAP, the system obtains operating parameters utilized by a nearby FAP expected to have a substantially similar radio environment as the provisioning FAP. Moreover, weighting is applied to the nearby FAP to determine which set of operating parameters to utilize at the provisioning FAP. Accordingly, pre-existing operating parameters, optimized by the nearby FAP are employed to augment initial network listen measurements performed at the provisioning FAP, and thus improve speed and accuracy of initial FAP parameter provisioning.

Abstract: A wireless service of a first type is scanned. A first station associated with the first type is selected. A first indicator of expected service conditions associated with the first station is received. Based on the first indicator, a wireless service of a second type is scanned. A second station associated with the second type is selected. A second indicator of expected service conditions associated with the second type is received. Based on the first indicator and the second indicator, one of the first type and second type is selected to receive wireless service.

Abstract: An authorization scheme controls whether an interface is established between communication nodes. Such a scheme may be used, for example, to determine whether to establish a direct interface (e.g., an X2 interface) between a pair of access points. A decision to establish a direct interface between nodes may be based on a node type of one or both of the nodes. A decision to establish a direct interface between nodes may be based on whether the nodes belong to the same group.

Abstract: Provided is a method and apparatus for determining a downlink beamforming vector in a hierarchical cell communication system. Small base stations may determine transmit beamforming vectors of the small base stations so that interference from the small base stations may be reduced in a macro terminal. A macro terminal and small terminals may determine receive beamforming vectors based on the transmit beamforming vectors of the small base stations. A macro base station may determine a transmit beamforming vector based on effective channels to terminals using the receive beamforming vectors of the terminals.

Abstract: The present invention provides embodiments of methods for directing traffic between cells of different sizes. One embodiment of the method includes determining, at a mobile unit, whether to hand off from a source cell to a target cell based on information indicating sizes of coverage areas of the source cell and the target cell.

Abstract: A method and system provide a plurality of femto cells that are deployed within a macro cell of cellular network. The femto cells improve cellular service inside structures, such as residential and commercial structures. Femto base stations convert signals between an airlink-interface and core network to enable data communication between the mobile terminal and an access network to occur through the Internet and a public switched telephone network. The femto base stations are independent of each other and the macro cell. The method and system provide the femto base stations with interference awareness and mitigation techniques to minimize interference with the cellular network.

Abstract: In accordance with the exemplary embodiments of the invention there is at least a method, apparatus, and executable computer program to perform operations including detecting that a cell in a wireless communication system is able to selectively increase or decrease its transmit power by an amount, where the cell is configured with a transmit power and a parameter that indicates a maximum difference in power change, resulting from a change in transmit power, that can exist between a power change of the cell and a power change of a neighbor cell, examining, at the cell, a signal comprising at least one value received from at least one neighbor cell, based on the examining, determining that a transmit power change is possible, modifying a value associated with the transmit power, and modifying the transmit power of the cell by the modified value, and signaling the modified value to the at least one neighbor cell in the wireless communication system.

Abstract: A base station of a mobile device's movement destination receives a diversity handover (DHO) start notification from a mobile station at the beginning of a DHO. This notifies a radio network control apparatus and an instruction is issued to the base station to add a radio link. The time for transmitting data to a mobile device is determined, the transmission timing is rounded up, and the data is transmitted from the base station to a mobile device. In this event, a search window's timing for receiving data from the mobile device is shifted with the round up of the transmission timing; and therefore the width of the search window is enlarged. The movement destination's base station also receives a DHO complete notification from a mobile device at the completion of the DHO. The movement destination's base station changes the width of the width-enlarged window back to the original width.

Abstract: A method and system is disclosed for allowing the sharing of one or more system resources between multiple devices. In one embodiment, a requesting device transmits a resource access request to a target device using a near-field communication (NFC) protocol. The target device responds by using the NFC connection to return a listing of resources available for sharing to the requesting device. The requesting device may select one or more of the available resources and establish an appropriate connection to access the selected resource or resources. In one embodiment, the requesting device may lack external network connectivity capabilities while the target device includes wi-fi connectivity as a shared resource. Accordingly, the requesting device may access external network of the target device via the target as a conduit.

Abstract: A method and corresponding system is disclosed for enhanced resource allocation in a wireless communication system. According to the method, when an idle wireless device seeks to initiate a call in a given coverage area, the device will provide with its initiation request to the serving radio network a motion specification indicating an extent of movement of the device, based on the device's tracking of its own movement. The network will then use that motion specification provided with the initiation request as a basis to determine whether to select a resource to allocate for the call in the given coverage area based on resource implementation in at least one neighboring coverage area or whether to instead select the resource to allocate without regard to resource allocation in the at least one neighboring coverage area.

Abstract: A base station may transmit at varied power levels. Subscriber stations receiving the power levels can transmit noise information back to the base station. As a result, co-channel interference can be determined from the varied power transmissions, either in the base station or in the subscriber station. In addition, in some embodiments, the transmissions may include different phases so that the phase of the co-channel interference may be determined as well.

Abstract: An apparatus and method relates to transmission of media independent (MIH) handover protocol information, the access point includes a wired interface module to receive, through a wired network, indication information indicating whether an access point that manages a neighboring heterogeneous subnet supports a protocol to conduct a media independent handover (MIH), a storage module to store the received indication information, a frame generating module to generate a frame including the stored indication information, and a wireless interface module to transmit the generated frame to a mobile node.

Abstract: A system and methodology that facilitates triggering device scanning and efficient femtocell detection in areas dominated by macro cells is provided. In particular, the system can includes a jamming component that generates a small and measured amount of interference to user equipment or user equipments (UEs) camping on nearby macro carriers. Moreover, the power utilized to introduce the interference can be enough to cause macro signal quality around the femtocell access point (AP) to fall below a scan trigger level. The UE(s) can detect the macro signal quality decline below the scan trigger level and scan other frequency bands, including the femtocell, on which to camp. Additionally, the system can perform femto pilot gating, such that the jamming component can scan the radio environment surrounding the femto AP during an off state, to determine information that facilitates jamming of a macro pilot.

Abstract: There is elucidated a method of communicating data packets (210; 520) within a data communication network (10). The network (10) comprises communication nodes (30a, 30b, 30c, 40), wherein a first nodal set (30a, 30b, 30c) comprises nodes which are operable to communicate via a communication medium with a second nodal set (40) comprising at least one of said nodes (30a, 30b, 30c, 40). The method comprises steps of: (a) mutually synchronizing together two or more nodes of said first nodal set; and (b) simultaneously in a synchronized manner transmitting one or more data packets from the mutually synchronized two or more nodes of said first nodal set via said communication medium for substantially simultaneous reception at said second nodal set (40).

Abstract: A method of performing handover using subnet information includes: comparing subnet information for the current PoA with subnet information for the new PoA; and determining a layer in which handover is performed, according to whether the subnet information for the current PoA is equal to the subnet information for the new PoA, and performing handover in the determined layer. By comparing subnet information received before a mobile node moves with subnet information received after the mobile node moves, and thus quickly determining whether a change between subnets occurs, and by determining a layer in which handover is performed on the basis of the determination result, it is possible to efficiently perform handover.

Abstract: Embodiments described herein relate to connected-state radio session transfer in wireless communications. A source access network controller may lock a source radio session associated with an access terminal (e.g., in response to detecting a handoff condition associated with the access terminal), where the source access network controller may be in communication with a data network. The source access network controller may also instruct a target access network controller to create a target radio session corresponding with the source radio session, and to establish a communication route between the data network and the access network via the target ANC. The source access network controller may then freeze a state associated with the source radio session and transmits the frozen state to the target access network controller. The target access network controller may subsequently unfreeze the received state and further unlock the radio session, hence resuming control of the access terminal.

Abstract: A wireless communication system according to the present invention includes a first base station forming a unicast area and a second base station forming a multicast area. The first base station is provided with a load status reporting unit for reporting the load status of the unicast area of the first base station to the second base station forming the multicast area within a certain distance from the unicast area of the first base station. The second base station is provided with a transmission power controlling unit for controlling, based on the reported load status of the unicast area, the transmission power of a signal transmitted in the multicast area of the second base station.

Abstract: In one embodiment, the method of carrier handoff includes receiving a measurement report from a mobile providing information regarding path loss as measured at the mobile for a serving one of the multiple carriers on the downlink. The serving carrier is the carrier over which the mobile communicates on the uplink. The method further includes selectively sending an instruction to the mobile to handoff to a non-serving one of the multiple carriers depending on whether a threshold requirement associated with the serving carrier has been met. Meeting the threshold requirement is based on the received measurement report, and each of the multiple carriers has an associated threshold requirement.

Abstract: A system and method implemented at a communication device for providing access to telephony services over one or more of a number of communication networks, including cellular networks and IP-based fixed and wireless networks. A mobile device may be configurable for voice communication over both a cellular network and a LAN (e.g. a wireless LAN), and may be adapted to place and receive calls via a PBX over one of the cellular network and the LAN. When it is determined that the mobile device is configured for voice communication using one or both of the cellular network connection and the LAN connection, the mobile device may automatically adapt its user interface to reflect the availability of voice communication only over those connections that are available.

Abstract: A mobile communication method according to the present invention includes a step A of causing a mobile station in a standby mode in a first cell to transmit a communication start request signal, a step B of judging whether or not to measure communication quality of a second cell on the basis of judgment as to whether or not the particular service is provided in each of the cells and judgment as to whether or not communication quality of the second cell is included in the communication start request signal, the second cell overlaid by the first cell in a different frequency band and a step C of starting communication of the mobile station in either one of the first cell and the second cell on the basis of the measured communication quality of the second cell.

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: 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: 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: A method and apparatus for detecting a cell in a mobile communication system such as an LTE (Long Term Evolution) system are provided. In the method, when a signal is received from at least one base station, a primary synchronization channel (PSCH) detector detects a PSCH symbol in the signal. Then a PSCH validity determiner ascertains a valid value of the PSCH symbol and determines whether the valid value is greater than a given threshold. If the PSCH symbol is greater than the threshold, a secondary synchronization channel (SSCH) allocator estimates a position of an SSCH symbol in the signal using the PSCH symbol. Then an SSCH detector detects the SSCH symbol at the estimated position, so that a neighboring cell can be found through the detected SSCH symbol.

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: The disclosure discloses a method for mobility parameter negotiation between base stations (BSs). A target BS performs a mobility parameter decision and an optimization processing after receiving a mobility parameter modification request message from a source BS. When the processing succeeds, the target BS sends a mobility parameter modification acknowledgement message at least carrying a message type and a source cell ID to the source BS; when it fails, the target BS sends a mobility parameter modification failure message at least carrying a message type, a reason of failure, and the source cell ID to the source BS. A system for mobility parameter negotiation between BSs is also provided.

Abstract: A method for selecting a cell in a wireless communication system includes performing a cell selection process in a mobile terminal, which includes receiving, in the mobile terminal, information from each of at least one cell, each information including a preference value, where each preference value indicates a congestion level of a corresponding one of the at least one cell, and selecting, in the mobile terminal, one of the at least one cell according to the received preference value. The method for selecting a cell a wireless communication system further includes attempting, by the mobile terminal, to connect with the selected cell by performing a random access procedure with the selected cell.

Abstract: An operational mode of a terminal is dynamically configured to allow the terminal to receive services of interest to the terminal while potentially conserving battery power. The terminal operates in a first mode (e.g., an HRPD-only mode) and monitors only a first radio network (e.g., an HRPD network) for pages from a first data network (e.g., and IMS network) if all services from a second data network (e.g., an ANSI-41 network) of interest to the terminal is obtainable via the first radio network. The terminal operates in a second mode (e.g., an 1X-HRPD mode) and monitors the first radio network and a second radio network (e.g., a 1X network) for pages from the first and second data networks, respectively, if at least one service from the second data network of interest to the terminal is not obtainable via the first radio network. The terminal may dynamically select the first or second mode.

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.