Abstract: A portable electronic device and a method of controlling are disclosed, each of which is capable of efficiently selecting a communication processing unit. The portable electronic device includes: a first communication processing unit conforming to a first communication scheme; a second communication processing unit conforming to a second communication scheme; a third communication processing unit conforming to a third communication scheme; and a control unit. When data communication is performed, the control unit controls each processing unit so as to preferentially use the first communication processing unit, the second communication processing unit, and the third communication processing unit in this order. In a case in which a network is disconnected while data communication is being performed by the second communication processing unit, the control unit executes control so as to continue the data communication by the third communication processing unit.

Abstract: The invention is directed to systems, methods and computer program products for forming a mobile cell in a network. An exemplary method comprises: first determining a first node of the network is within a predetermined distance of a second node of the network; second determining the first node's movement pattern is substantially similar to the second node's movement pattern; forming a mobile cell comprising the first node and the second node based on the first determining and second determining steps; and selecting the first node as a base station for the mobile cell.

Abstract: A micro-cell base station subsystem at a premises of an enterprise includes a base transceiver system configured for wireless communication with a mobile station over a frequency band allocated for mobile traffic in a macro cellular network. A communication interface is configured to send and receive communications for one or more mobile stations when at the premises via a packet data network. A controller coupled to the base transceiver system is configured to operate the micro-cell base station subsystem to appear as a base station similar to a base station of the macro cellular network, including enabling mobile station registration. A softswitch coupled to the packet data network enables mobile station registration with the macro cellular network through the micro-cell base station subsystem.

Abstract: In a radio communication system that allows coexistence of a plurality of radio network systems, a radio node 1 that belongs to a first radio network system and temporarily belongs to a second radio network system includes a system-coordination control unit 13 that gives a notification indicating that the radio node 1 temporarily becomes unavailable when the radio node 1 starts operating as a radio node that belongs to the second radio network system, wherein when a radio node that belongs to the first radio network system and is adjacent to the radio node 1 receives a notification of temporary node unavailability, the radio node changes a radio communication parameter between this radio node and the radio node 1 to a value such that the radio node 1 is not detected as faulty.

Abstract: A system is provided for overlapping cells for wireless coverage in a cellular communication system. The system includes a beam-weight generator and beamformer coupled to the beam-weight generator. The beam-weight generator is configured to generate a plurality of beam weights including at least first and second sets of beam weights. And the beamformer is configured to apply the first and second sets of beam weights to signals in a cellular communication system. The cellular communication system provides coverage over a geographic region divided into cells arranged in overlapping first and second layers of cells having criteria optimized for respective, distinct first and second types of services, or communication by respective, distinct first and second types of user terminals. In this regard, the criteria are reflected in the first and second sets of beam weights.

Abstract: An apparatus (100) generates a preferred roaming list (108) for a wireless mobile station (404) that includes area identification data (such as GEO GROUP_ID) (200) corresponding to an area serviced by at least one wireless wide area network, such as a ground based CDMA system and an area services by at least one in-vehicle wireless pico-cell (402), such as a wireless CDMA pico-cell located on an aircraft or any other suitable vehicle. The area identification data (200) is associated with a wireless in-vehicle pico-cell system identification data (205) and in the case of a CDMA pico cell system, a system identification data SID) and network identification (NID) data pair (206) associated with the in-vehicle wireless pico-cell (402).

Abstract: Aspects described herein relate to a base station for providing air-to-ground wireless communication over various altitudes. The base station includes a first antenna array comprising one or more antennas configured to form a first cell coverage area extending substantially from a horizon up to a first elevation angle away from the first antenna array to a predetermined distance from the first antenna array. The base station further includes a second antenna array configured at an uptilt elevation angle to form a second cell coverage area extending at least from the first elevation angle to a second elevation away from the second antenna array, wherein the first cell coverage area and the second cell coverage area are concentric to define the ATG cell at least to the predetermined distance and up to a predetermined elevation.

Abstract: A node of a multiple radio access technology (multi-RAT) system acquires resource status information associated with each RAT of the multi-RAT system. The resource status information of the RATs of the multi-RAT system can be acquired by sniffing higher layer protocol information pertaining to call setup requests and/or call terminated messages. The node further maintains a flag representing overall resource availability associated with the RATs of the multi-RAT system, based on the acquired resource status information, for use in admission control and/or load balancing. The flag is associated with a pre-defined set of overall resource availability states of the multi-RAT system, where the availability states are defined in terms of admission control decisions.

Abstract: According to an apparatus, method and computer program product an interference pattern transmitted by a communication terminal based on a cellular communication network related configuration of the communication terminal is determined, wherein the determined interference pattern includes information on a transmission schedule of the communication terminal. Further, a wire connection based broadcast distribution of the determined interference pattern is initiated. Then, an interference pattern observed on a radio interface is compared with an interference pattern broadcast on wire connection, based on a transmission schedule of the interference pattern broadcast on wire connection. Finally, an originator of an interference pattern broadcast on wire connection is marked as a neighbor in case a match is determined between the interference pattern broadcast on wire connection of this originator and an interference pattern observed on a radio interface.

Abstract: An apparatus and method is provided for indoor/outdoor transition detection of devices to improve selection of the navigation algorithms. A mobile device can scan resources such as radio frequency (RF) sources in its vicinity and compare the scanned resources with a set of indoor-only resources to determine whether the mobile device is located inside a structure (e.g., indoor) or outside the structure (e.g., outdoor). The techniques provide an apparatus and method to determine when a device transitions between indoor and outdoor to efficiently use appropriate algorithm for positioning and/or navigation.

Abstract: Applications executed out of router memory may acquire additional bandwidth that is not being used by other applications, in order to speed up network traffic. Scavenging may occur up to a point where current congestion is detected, at which point any scavenged bandwidth is relinquished and the application returns to its prescribed limit. After current congestion is mitigated, scavenging may occur up to a limit below the point where congestion was detected. After a predetermined interval, additional scavenging may occur beyond this limit until a preset bandwidth limit is reached.

Abstract: An apparatus including at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least evaluate, in a cognitive node, transmission of a physical random access channel in an uplink of a communications carrier, and, based on the evaluating, utilize an interference-free guard time period of a cellular user terminal's transmission in the physical random access channel, for distributing a synchronization signal and a beacon signal locally, the cellular user terminal's transmission in the physical random access channel including a guard time period that compensates a maximum round trip delay in a cell.

Abstract: A communication system (1) includes a mobile communication network (2); a fixed communication network (3) connected to the mobile communication network (2); and a plurality of radio base stations capable of communicating with a mobile terminal (100) by radio communication. The radio base stations include a first base station (41, 42) connected to the mobile communication network (2); and second base stations (51, 52) connected to the fixed communication network (3) through wire communication lines (61, 62). A communication connection using a predetermined interface is established between one of the second base stations (51) and one of neighboring base stations (the first base station (42) and another one of the second base stations (52)) located in the neighborhood of the one of the second base stations (51).

Abstract: In an embodiment, a method for determining the type of a mobile radio base station is provided. The method may include receiving a synchronization message comprising a mobile radio base station identifier, and determining the type of a mobile radio base station using a previously signaled and stored piece of mobile radio base station type determining information indicating a rule as to how the type of a mobile radio base station out of a plurality of types of a mobile radio base station can be derived from a mobile radio base station identifier and the received mobile radio base station identifier.

Abstract: The present disclosure discloses a method for inter-cell interference coordination, which includes: classifying users in a cell into cell-edge users and cell-center users and allocating frequency resources to the cell-edge users and the cell-center users; acquiring the interference level of the frequency resources in the cell according to inter-cell interference and recording the changing trend of the interference caused by a neighboring cell on the cell; and coordinating the inter-cell interference according to the interference level of the frequency resources in the cell and the changing trend of the interference caused by the neighboring cell on the cell. The present disclosure further discloses a base station for implementing inter-cell interference coordination. The present disclosure can effectively lower the level of inter-cell interference to an ideal balanced state and improve the service capability of a base station.

Abstract: There lies a challenge to develop a technique of accurately and efficiently determining an available communication channel. In accordance with some embodiments disclosed herein, techniques for sensing a primary user of a particular communication channel are performed more efficiently. In some implementations, a geo-location of a communication device is combined with a sensing algorithm in order to more efficiently perform spectrum sensing. In some implementations, a geo-location and an accuracy determination may be used to determine all required sample regions in order to ensure that a primary user is not present in a particular location.

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: The cognitive radio system and method uses a wideband chirp signal for characterization of the spectra that a mobile radio may use. A cognitive radio base station broadcasts the low power reference wideband chirp signal with bandwidth covering the sensed spectrum. At the receiver, spectral resolution in the presence of white noise is achieved by cross-correlating the chirp signal with a locally generated copy of itself (i.e., matched filtering). A Fast Fourier Transform (FFT) is applied to the output of this matched filtering. The FFT output is fed to a decision circuitry, where a threshold value is set to decide the minimum amplitude of utilized frequencies. This process eases sensing computational complexity and improves the quality of sensing, thereby offering enhanced cognition at the cognitive radio receiver.

Abstract: A relay and distribution apparatus is provided for a cellular communication system. The relay and distribution apparatus includes an antenna system configured to lay down beams in overlapping first and M second N-cell frequency reuse patterns. The first frequency reuse pattern may be for communication of control channels of a cellular communication system, and the second frequency reuse patterns may be for communication of traffic channels exclusive of control channels of the cellular communication system. The second frequency reuse patterns may be staggered with one another. And cells of the second frequency reuse patterns may have a size only a fraction of which is for transmission of traffic channels any of which may be assignable through a control channel of the first reuse frequency pattern.

Abstract: In a wireless communications network, the presence of a wireless local area network in a cell segment is determined. An identifier of the wireless local area network in the cell segment is sent to at least one mobile station in the cell segment to enable the at least one mobile station to hand off to the wireless local area network. Optionally, information identifying geographic boundaries of cell segments and the wireless local area network can be sent to the at least one mobile station.

Abstract: A system is provided for overlapping cells for wireless coverage in a cellular communication system. The system includes a beam-weight generator and beamformer coupled to the beam-weight generator. The beam-weight generator is configured to generate a plurality of beam weights including at least first and second sets of beam weights. And the beamformer is configured to apply the first and second sets of beam weights to signals in a cellular communication system. The cellular communication system provides coverage over a geographic region divided into cells arranged in overlapping first and second layers of cells having criteria optimized for communication by respective, distinct first and second types of user terminals. In this regard, the criteria are reflected in the first and second sets of beam weights.

Abstract: A method for implementing local call local switch (LCLS) is provided in the present invention, and the method includes that: a mobile switching center (MSC) at a calling side receives a call establishment request of a calling user, and a MSC at a calling side transmits the local reference to a base station system (BSS) at the calling side and a MSC at the called side; the MSC at the called side transmits the received local reference to the BSS at the called side; and a BSS judges whether the local switch can be triggered according to the received local reference, and executes the local switch when determining that the local switch can be triggered. The present invention also provides a system for implementing LCLS. With the method and system provided by the present invention, the problem of unsuccessful local switch resulted by the BSS connecting multiple MSCs is solved.

Abstract: The present invention discloses a cluster head assisted method for converting a user terminal from device-to-device (D2D) communication to cellular communication. When quality of a D2D link between a user terminal and a cluster head is lower than a predetermined threshold, if the user terminal has to leave the cluster but still expects to continue an original the service, the user terminal performs cell search and random access, and establishes a radio resource control (RRC) connection with a target base station of a cellular network. Switching from D2D communication to cellular communication is implemented with the assistance of the cluster head, and a communication manner after the switching is provided. The present invention implements mobile switching from D2D communication in distributed cluster communication to cellular communication, which can reduce route search delay and save wireless resources.

Abstract: A measurement reporting method for a Closed Subscriber Group (CSG) cell and a corresponding User Equipment (UE) are provided in the present invention. The method comprises the following steps that: after detecting a neighboring accessible CSG cell which is not on a frequency in a measurement configuration, a UE in a connected state requests a network for a measurement configuration by reporting indication information which contains the frequency information of the accessible CSG cell and/or the bandwidth information of the accessible CSG cell. The present invention solves the problem about the measurement and reporting of a CSG cell by a UE, so that a network is able to make a decision in time according to a measurement report, satisfying the requirement of the UE on mobility.

Abstract: A mobile communications network includes a core network including infrastructure equipment, and a radio network including plural base stations to provide a wireless access interface for communicating data to/from communications terminals. One base station operates as a serving base station to one of the communications terminals, to establish one or more communications bearers for communicating user data to/from the communications terminal via the core network and the radio network via the serving base station, and to co-operate with at least another base station to communicate the user data to/from the communications terminal.

Abstract: A wireless communication device is provided with a first radio module and a second radio module inside. The first radio module performs wireless transceiving according to a plurality of first traffic patterns which each indicates allocations of a plurality of first slots for a plurality of forthcoming transmitting or receiving operations, respectively. The second radio module determines an indicator indicating at least one of a plurality of second traffic patterns which each indicates allocations of a plurality of second slots for a plurality of forthcoming transmitting or receiving operations, respectively. Particularly, one or more allocations of the second slots are selectively determined according to the first traffic patterns. Also, the second radio module transmits the indicator to a peer communication device, so that the peer communication device performs transmitting or receiving operations according to the indicator.

Abstract: A fractional frequency reuse method for assigning physical resource units of a contiguous frequency band to sectors of cells is disclosed.

Abstract: Cell relocation procedures to address handover between a macro radio network controller (RNC) and a home base station in a wireless communication network, while accounting for access control or membership verification procedures needed to support a Closed Subscriber Group (CSG) at the home base station. An example method begins with the receiving of a request for handover of the mobile terminal from an RNC of the macro wireless network. A closed subscriber group (CSG) identifier for the home base station and a cell access mode for the home base station are then sent, to a core network node associated with the macro wireless network, for use by the core network node in membership verification or access control for the mobile terminal. In response, the home base station receives a CSG membership status for the mobile terminal from the core network node.

Abstract: A method for operating an overlay macro base station (BS) for discovering a closed subscriber group (CSG) user equipment (UE) in a femto cell, includes: receiving a ranging request message including a CSG ID information from a UE which attempts a network entry; and after receiving the ranging request message from the UE, recommending the femto cell to monitor uplink signaling of a CSG UE belonging to the overlay macro BS.

Abstract: A wireless communication system includes a first base station (3), a plurality of second base stations (1-1 and 1-2) and a control apparatus (10). The first base station forms a first cell (6). The plurality of second base stations (1-1 and 1-2) forms a plurality of second cells (5-1 and 5-2) each including a portion thereof partially overlapping with the first cell. The control apparatus (10) executes uplink transmission power control for a target second cell (5-1) by using a resource parameter (R1) which increases and decreases in accordance with a sum of usage amounts or sum of usage rates of uplink resources in the plurality of second cells (5-1 and 5-2).

Abstract: A graphical user interface displays a proposed site plan of one or more new base stations with respect to existing network infrastructure in a geographical region. While in the field, an installation specialist can perform an in-person survey of the geographical region to determine whether a proposed location is suitable for installation of a wireless base station. The installation specialist may identify an obstacle that would inhibit a newly proposed wireless base station from providing desired coverage if installed at the proposed location. Via input to the graphical user interface, the installation specialist proposes an alternative location in which to install the new base station. A processor performs a validity check and provides feedback indicating whether installation of the new base station at the alternative location is acceptable. The graphical user interface also can support collection of site survey data to monitor progress of the installation.

Abstract: To start secondary use of a spectrum without causing an adverse effect on a communication service for primary usage, provided is a communication control method including the steps of acquiring data related to a communication environment surrounding a first communication device at the first communication device, determining that a second communication service using a part or whole of a spectrum assigned to a first communication service is available when the acquired data related to the communication environment satisfies a first condition, and permitting usage of the second communication service when the data related to the communication environment satisfies a second condition at the first communication device or a second communication device.

Abstract: Systems and methods for frequency reuse in a multi-cell deployment model of a wireless backhaul network are shown. According to embodiments, a wireless backhaul network includes a plurality of cells, each of which includes one or more hubs supporting wireless backhaul communication utilizing a cell deployment geometry and wireless communication frequency assignments adapted to facilitate heterogeneous cell configurations within the wireless backhaul network. In particular, embodiments provide frequency planning for initial deployment, build out, and expansion of a plurality of cells providing wireless backhaul communication so as to implement a predetermined wireless frequency reuse pattern providing alternating utilization of a plurality of wireless communication frequencies by the cells of the backhaul network.

Abstract: Systems and methods are disclosed that facilitate dynamically adjusting a number of resources, such as channels, frequencies, tones, etc., occupied by a node (e.g., an access point, and access terminal, etc.) in accordance with various aspects. A level of service experienced at the node may be determined, and a resource utilization message (RUM) may be generated if the level of service is at or below a predetermined threshold level (e.g., an acceptable level of service). The RUM may indicate a number of resources selected by the node for subsequent use, and may be transmitted to one or more other nodes.

Abstract: The present invention relates to a segment identifier detection method performed by a terminal if a segment being administrated by a base station in a wireless communication system has the frequency reuse factor of 3 and 2 at the same time. In particular, the method comprises: acquiring a cell identifier and a segment identifier corresponding to the cell identifier from a secondary advanced preamble (SA-preamble) that has been received from the base station; determining a frequency reuse factor of the base station; and if the frequency reuse factor is 2 and the obtained segment identifier is a third segment identifier, transforming the segment identifier corresponding to the cell identifier into a first segment identifier or a second segment identifier.

Abstract: In a cooperative spectrum sensing method and system for locationing primary transmitters, each of secondary users transmits to a corresponding one of cognitive radio (CR) base station location information thereof and a received signal strength indicator (RSSI) value generated thereby in response to sensing power signals from the primary transmitters. The CR base stations transmit the location information and the RDDI values of the secondary users to a data fusion center such that the data fusion center obtains the number and locations of the primary transmitters based on the location information and the RSSI values received thereby using a learning algorithm to thereby reconstruct a power propagation map of the primary transmitters.

Abstract: A user equipment UE determines that a neighbor cell is higher priority than a serving cell, measures neighbor cell signal strength in n>1 iterations, and analyzes them for reselecting from the serving cell to the neighbor cell. Each measurement iteration is spaced from one another by a time interval (e.g., 1 DRX) that is specific for the neighbor cell being higher priority. In various embodiments, the UE measures while in a Cell-PCH, URA-PCH or idle state/mode and the first iteration is taken at the first available measurement opportunity after transitioning to that state/mode. The UE reselects to the neighbor cell based on the analyzed signal strengths; in one embodiment the decision to reselect is without regard to signal quality of the serving cell; and in another the decision is without regard to whether a reselection condition remains satisfied for a specified time period Treselection.

Abstract: Methods for routing a call involving an Internet Protocol (IP) Multimedia Subsystem Centralized Services (ICS) subscriber accessing an IP Multimedia Subsystem (IMS) network using a circuit switched (CS) access network are provided. The method includes receiving an incoming call request for a user at a gateway Mobile Switching Centre (GMSC); accessing a Location Register storing information relating to the user to determine if the user is an ICS subscriber; and generating and forwarding a SIP INVITE message to the IMS to establish the call if it is determined that the user is an ICS subscriber. Related Gateway Mobile Switching Centres (GMSCs) and Home Location Registers (HLR) are also provided herein.

Abstract: Aspect of the subject technology relate to a computer-implemented method for identifying geographic features related to a location lookup point. In some implementations, the method includes steps for receiving location information for a location look-up point, generating a plurality of search cells containing the location look-up point, wherein the plurality of search cells correspond with a respective plurality of hierarchical map cells and using the plurality of search cells to identify at least one geographic feature that is associated with at least one of the plurality of search cells. In certain aspects, the method can further include steps for providing at least one geographic feature to a user for display. Systems and computer-readable media for generating a geographic feature index are also provided.

Abstract: Embodiments relate to positioning of a user equipment in a communications network. A method in a user equipment for performing positioning measurement comprises receiving positioning assistance data from a positioning node. The positioning assistance data comprises a plurality of reference cells, wherein each reference cell may be associated with at least one respective frequency, and a set of neighbor cells comprising at least one neighbor cell. The method further comprises, for each reference cell comprised in the plurality of reference cells, identifying a respective associated set of neighbor cells, wherein the reference cell and the respective associated set of neighbor cells define a group. Furthermore, the method comprises performing at least one positioning measurement using the positioning assistance data for each respective identified group.

Abstract: A detecting base station comprises a device beacon detector that is configured to apply wireless wide area network (WWAN) system timing to receive a device beacon transmitted by a wireless communication device in accordance with the WWAN system timing and outside of a WWAN uplink channel. The detecting base station may include a wireless wide area network (WWAN) interface configured to receive the WWAN system timing from the WWAN.

Abstract: There is disclosed a system and method for improving wireless system capacity by reducing collisions where the Signal to Interference Ratio (SIR) is high in systems having a channel reuse of 1. By ordering the channel assignment in each of the interfering cells according to a pattern, for example, according to the distance from a base station (determined by power levels), the mobile stations will become paired on the same channel in a manner to reduce interference between them. In one embodiment, this intelligent assignment is accomplished by assigning mobile stations in one cell such that the mobile station having the strongest signal is assigned channel A while in the interfering cell the mobile station with the weakest signal is assigned to channel A. In another embodiment, certain preferred mobile stations are assigned either interference-free channels or channels paired with weak interference mobile stations.

Abstract: In a communication system, an upper-level carrier has communication functions for both first and second sessions. A first communication unit communicates with the upper-level carrier through a first communication session established therewith. A second communication unit communicates with the upper-level carrier through a second communication session established therewith. A communication control unit controls the first and second communication units. The communication control unit disconnects the first communication session and directs a signal intended for the first communication session to the second communication session, so that the signal is delivered to the upper-level carrier by using the second communication session as a detour.

Abstract: A RAN may receive a call request to establish a call involving a WCD. The RAN may serve WCDs of a first type and WCDs of a second type. WCDs of the first type may communicate with the RAN using a first air-interface or a second air-interface, and WCDs of the second type may communicate using the second air-interface. If the WCD is of the first type, the RAN may select wireless coverage areas from a first candidate set of wireless coverage areas. If the WCD is of the second type, the RAN may select wireless coverage areas from a second candidate set of wireless coverage areas. The RAN may assign, to the WCD, traffic channels from each wireless coverage area selected for supporting the call. The selected wireless coverage areas may be defined by the RAN and may operate in accordance with the second air-interface.

Abstract: A system and method for synchronous spectrum sharing for a dedicated network in a wireless communication system based on orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) signaling is disclosed. The system and method includes detecting a frame of a broadcast waveform and extracting idle spectrum information associated with the dedicated subchannel to the secondary user node. The system allows transmitting data from the secondary user node in unused symbol slots identified in the idle spectrum information thereby making efficient use of unused or idle spectrum. Accordingly, secondary users of the wireless communication system can dynamically form ad-hoc mesh network communications in fixed or mobile scenarios.

Abstract: Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving, by a station in an access network, a frame from another station in the access network or from an overlapped access network, indicating time restrictions for reserving a wireless medium, the frame including an indication in a first portion of the frame, indicating the presence of the time restrictions for reserving the wireless medium; and decoding, by the station, at least a second portion occurring after the first portion of the received frame, to determine the time restrictions for reserving the wireless medium, in response to the indication.

Abstract: Aspects of a method and system for utilizing tone grouping with Givens rotations to reduce overhead associated with explicit feedback information are presented. In one aspect of the invention, Givens matrices may be utilized to reduce a quantity of information communicated in explicit feedback information via an uplink RF channel. The explicit feedback information may include specifications for a feedback beamforming matrix that may be utilized when transmitting signals via a corresponding downlink RF channel. The feedback beamforming matrix may represent a rotated version of an un-rotated matrix. The Givens matrices may be utilized to apply one or more Givens rotations to un-rotated matrix. The rotated matrix may reduce the quantity of information communicated in the explicit feedback information. The quantity of information communicated in the explicit feedback information may be further reduced by utilizing tone grouping.

Abstract: A method and system for allowing a client device to establish a direct communications session such as Wi-Fi Direct service using the 5 GHz band. In one embodiment, a client device first establishes a direct communications session, in the 2.4 GHz band with another client device, and then, based on the content used in that service, establishes a 5 GHz service if needed.

Abstract: A system and method for detecting a location of a mobile communication terminal. A mobile communication network for communication with the terminal and a cell identifier (ID) of a base station is set. A public land mobile network (PLMN) ID of the network and the cell ID are stored. One or more networks other than the set network are searched for. When the one or more other networks are searched for, the searched one or more other networks are sequentially set. Cell information according to the one or more other networks is searched for. Cell IDs of base stations communicable with the terminal are set. PLMN IDs of the one or more other networks and the cell IDs are stored. A common area between cells set using the stored PLMN and cell IDs is determined. Information about the common area is detected as location information of the terminal.

Abstract: A method and apparatus for obtaining overhead information by a mobile is provided herein. During operation, the mobile will be communicating with a first system on an active data channel. The mobile node will be able to measure pilot PN phase and amplitude for a second system that is a potential candidate to handoff and will have that information available. The data channel of the active service is used to query a proxy server that provides overhead information for the second base station. More particularly, when PN phase and amplitude information is provided to the proxy server, the proxy server will identify the base station and provide the overhead information needed to associate with the second base station.