Abstract: The present invention relates to a test system for displaying log information about the communication of a plurality of pseudo-base stations such that each pseudo-base station can be identified. A mobile communication terminal test system includes a display device which is connected to a plurality of pseudo-base station apparatuses through a network, receives a packet transmitted from each of the plurality of pseudo-base station apparatuses, and displays a communication log between layers on a display unit on the basis of log data included in the packet. The display device includes an information storage unit that stores information associated with the address of each of the plurality of pseudo-base station apparatuses in advance and a log data storage unit that stores the log data such that the pseudo-base station apparatus which has performed the communication can be identified.

Abstract: Embodiments of the present invention disclose a link failure recovery method and apparatus. The method includes: first receiving, by a primary base station, failure report information sent by a user equipment, acquiring, according to the failure report information, an identifier of a DRB that needs to be reconfigured, and reconfiguring a parameter for the DRB that needs to be reconfigured; and then sending, by the primary base station, a first reconfiguration message to the user equipment, so that the user equipment reconfigures a failed DRB according to the first reconfiguration message. The present invention is applicable to the field of communications systems.

Abstract: A rogue base station detection system that establishes a communication session with a suspected base station, and verifies whether the base station is rogue or innocent by testing which advanced communication features are supported by the base station. The detection system holds a definition of one or more communication features that are supported by innocent base stations and not by rogue base stations. During a communication session with a suspected base station, the detection system requests the base station to activate these communication features. If the base station does not support the features in question, it is likely to be rogue.

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and an apparatus for processing a NAS signaling request. A method for performing a non-access stratum (NAS) signaling process by means of a terminal in a wireless communication system according to one embodiment of the present invention comprises: a step of receiving a first message that includes information indicating a network failure from a network node of a first network; a step of starting a timer relating to a network selection; and a step of selecting a second network from among network candidates excluding the first network during the operation of the timer relating to a network selection.

Abstract: A mobile wireless device adapts roaming parameters used to determine searching for and switching among access points. The roaming parameters are adjusted based on a wireless network characterization for access points that includes a detected wireless network type. In an embodiment, the wireless network type is characterized by a service set identifier and a number of unique basic service set identifiers associated with the service set identifier per radio frequency band. Roaming parameters include a scan threshold, a roam threshold and a time interval between successive scans.

Abstract: Provided herein is a dynamically coordination of a distribution of radio signals via distributed remote radio units, with respect to changing numbers and locations of user equipment. A distributing and combining unit combines uplink radio signals from the remote radio units and distributes downlink radio signals from the access unit according to dynamically changing specified criteria. A measurement unit measures performance indicators of the communication between the remote radio units and the mobile communication devices into a matrix of performance indicator values, calculates cost functions therefrom and generates output execution parameters by applying a decision process based on the calculated cost function. Communication criteria are dynamically updated according to the generated output execution parameters and the process is continuously iterative. The invention allows incorporating “smart” capabilities into legacy networks without any major physical changes of the network.

Abstract: An adaptive workflow system can be used to implement captioning projects, such as projects for creating captions or subtitles for live and non-live broadcasts. Workers can repeat words spoken during a broadcast program or other program into a voice recognition system, which outputs text that may be used as captions or subtitles. The process of workers repeating these words to create such text can be referred to as respeaking. Respeaking can be used as an effective alternative to more expensive and hard-to-find stenographers for generating captions and subtitles.

Abstract: The present invention relates to a switching center server (100) handling calls, comprising a blade cluster with a plurality of different blades (110), a distributor (125, 170) distributing a message relating to a call to one of the blades, a master (130, 150) centrally controlling a usage of pooled resources by said plurality of blades (110) for handling the call, wherein the distributor contacts the master for retrieving the information to which blade said message is to be distributed. The different blades in the blade cluster are seen from the outside as one node, so that for message distribution the master is contacted in order to distribute the message relating to a call to the blade that is handling said call.

Abstract: A method and system allows a mobile device user to receive status information concerning the mobile device even when the user is not in possession of the mobile device. The user can access the status information via a cloud-based service, thereby allowing the user to be made aware of the device's status from any location at which the user has network (e.g., Internet) access. The system includes the service, which securely receives and stores the status information from the mobile device and a client, which is used to access the service in order to receive the status information to display to the user, and which can send commands to the mobile device.

Abstract: According to an embodiment of the invention, there is disclosed a method for geographically locating a cellular phone. The method comprises: determining an effective cell-area for each of a first cell and a second cell in a cellular network; and determining a handover area within which the cellular phone is likely to be located when control of the cellular phone is transferred from the first cell to the second cell; wherein the determination of the handover area and the effective cell-area for each of the first cell and the second cell are made based on a topological relationship between the first cell and the second cell. Further related apparatus embodiments are also disclosed.

Abstract: A method is provided for passing information through a network during overload and subsequent actions to reduce congestion. An exemplary method includes receiving an origination request from a mobile device of a calling party, detecting an overload condition, transmitting a message request to a terminating network element associated with a called party in response to the origination request during the overload condition, receiving an acknowledgement of receipt of the message request, and denying the origination request. In this manner, high resource requests (e.g. a voice call) may be converted into lower resource requests (e.g. text or voicemail messages), or the resource request may be deferred to a more appropriate time.

Abstract: Method and arrangement in a base station, a user equipment and a positioning node, for sending, and obtaining, respectively, a value of a propagation delay of a signal. The signal is sent to the base station from a user equipment. The base station and the user equipment are comprised within a wireless communication system. Also, the base station and the user equipment are adapted to exchange wireless signals. The method is characterized by the step of receiving a signal sent from the user equipment. The method is further characterized by the step of measuring the value of the signal propagation delay of the received signal. Still further, the method is characterized by the step of sending the measured value to the equipment and/or to a positioning node comprised within the wireless communication system.

Abstract: Location information may be provided for a mobile station based on the serving area that is currently serving the mobile station. The location information may include a representative location (e.g., a centroid location of the serving area) and an uncertainty (e.g., a distance between the representative location and a boundary of the serving area). The representative location and uncertainty for a serving area may depend on the status of at least one neighboring area. For example, the effective size of a serving area may become larger when a neighboring area is heavily loaded or out of service. In an embodiment, a location server receives a request to locate a mobile station, selects a representative location and uncertainty for the serving area that is serving the mobile station based on the status of at least one neighboring area, and reports the representative location and uncertainty in response to the request.

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 method is provided for managing load balance in cellular heterogeneous networks. The method comprises: providing a plurality of spectrum carriers for conveying communication signals to/from a macro cell. At least one of the carriers is a shared carrier for conveying communication signals to/from the macro cell and to/from at least one small cell located at the geographical vicinity of the macro cell, and wherein the shared carrier is characterized in that data is the only type of communication signals being conveyed thereat when the cellular network is under congestion. One or more other spectrum carriers are dedicated carriers adapted to essentially convey voice calls, and wherein user terminals are steered away from dedicated carriers to the shared carrier, so that when a data session is initiated for a user terminal camped on the shared carrier, that session will be conveyed one or more of the small cells.

Abstract: The technology in this application reduces the maintenance effort and expense to monitor the performance of a cellular radio access node (e.g., a relay or repeater) by having the cellular radio access node automatically perform radio performance monitoring on itself and providing some kind of indication of its status to an operations and maintenance node. The cellular radio access node monitors performance of a set of one or more radio characteristics of a received radio signal received by the cellular radio access node or a transmitted radio signal transmitted by the cellular radio access node and determines whether the performance exceeds an associated predetermined threshold. The cellular radio access node indicates a condition of the cellular radio access node for the operations and maintenance node based on the monitored performance. The cellular radio access node may take independent action, e.g., shutdown, restart, reduce transmit power, etc., if a monitored condition is exceeded, e.g.

Abstract: Systems and methods for improved interference management by Wi-Fi devices are disclosed. The interference management may be achieved by monitoring, by the Wi-Fi device, signaling energy on a communication channel in a frequency band associated with the Wi-Fi device, comparing the monitored signal energy with a known waveform signature corresponding to Long Term Evolution (LTE) operation, and identifying a presence of an LTE interferer on the communication channel in the frequency band associated with the Wi-Fi device based on the comparison.

Abstract: The claimed subject matter is directed to defining a framework that enables wireless communicability between base stations for maintenance and configuration purposes, even while disconnected from an operator network, and/or deployed in the field. Embodiments are particularly applicable in the cases of small-cell base transceiver stations deployed in inconvenient, secluded, elevated and/or difficult to reach locations. The small cell base transceiver station is operable to communicate wirelessly to wireless terminals and mobile computing devices by emulating select functionality from dedicated components in an operator network.

Abstract: Systems, methods, and computer-readable media for migrating from coaxial cable to hybrid cable base station installations with zero or partial down-time are provided. In embodiments, the method includes determining, based on operational measurement data, a sector associated with a base station having the least traffic. Each sector supported by two conduits feeding two coaxial cables to an antenna. A channel count associated with the determined sector is reduced so that all transmits fit on a single coaxial cable resulting in an unused conduit and an unused coaxial cable. A hybrid cable is installed and activated so that all traffic for the determined sector is moved to the hybrid cable. Additional hybrid cables are installed to replace unused coaxial cables until traffic for all sectors has been moved to hybrid cables, which frees half the conduits for other use.

Abstract: Methods and apparatuses are directed to calibrating a misconfigured wireless access point. One method may include receiving a position of mobile station(s) and wireless signal model measurements derived from packets exchanged between the mobile station(s) and a plurality of wireless access points, receiving positions and/or identities of the plurality of wireless access points used in determining the position of the mobile station(s), comparing a position of the mobile station(s) with wireless signal model measurements, and identifying a misconfigured wireless access point based upon the comparing. Another method may include receiving positions associated with a plurality of wireless access points, determining a position of a mobile station based upon a wireless signal model, comparing the position of the mobile station and the wireless signal model with the positions associated with the plurality of wireless access points, and determining whether at least one wireless access point is misconfigured.

Abstract: Selecting at least one recipient to receive a communication, identifying and presenting a list of additional recipients to the user, the additional recipient list including contacts who have received messages in combination with the at least one selected recipient in the past, and allowing the user to select one or more of the additional recipients to receive the communication.

Abstract: A method (700, 800) and apparatus (500, 600) for distinguishing cells with the same physical cell identifier is disclosed. The method can include receiving (820) a handover request message including target cell timing offset information at a potential target cell base station, where the potential target cell base station can have a physical cell identifier. The method can include comparing (830) the received target cell timing offset information with stored timing offset information at the potential target cell base station. The method can include sending (840) a handover request accept message if the received target cell timing offset information is substantially equal to the stored timing offset information. The method can also include receiving (720), at a wireless terminal, a target cell physical cell identifier and determining (730) a target cell timing offset of a radio frame of the target cell with respect to reference timing of a serving cell.

Abstract: Method and system for testing communication devices via network connections. A request from a user in association with testing a communication device is received by a server. The request is with respect to a feature of the communication device that is being tested. The request is forwarded to a gateway that is responsible for facilitating the testing of communication devices. Upon receiving a response by the server from the gateway, the response is sent to the user.

Abstract: An apparatus and method for matching the radio channel measurement timing of Minimization of Drive Test (MDT) cycle with timings of the Discontinuous Reception (DRX) cycle are provided. The radio channel measurement method of a terminal according to the present invention includes configuring a DRX cycle, receiving a Minimization of Drive Test (MDT) cycle, comparing the DRX cycle and the MDT cycle, measuring, when the MDT cycle is an integer multiple of the DRX cycle, the radio channel at DRX timings matching with MDT timings, and storing a result of the measurement.

Abstract: A technique for protecting location information of a subscriber in a mobile network is disclosed. A User Mobility Server (UMS) receives a first query from a first call state control function (CSCF). The UMS transmits a call setup and a subscriber identity to a servicing-call state control function (S-CSCF). The S-CSCF may have no record of the subscriber identity due to a restart are some other event. The UMS receives a second query from the S-CSCF based in part of the subscriber identity. The UMS transmits a home address of a mobile station to the S-CSCF. The UMS may also transmit a profile download to the S-CSCF.

Abstract: A system is provided that includes a portable electronic device and a customer care system. The customer care system is configured to remotely communicate with the portable electronic device. The customer care system is operable to receive an indication of content displayed on a display of the portable electronic device. The customer care system is operable to communicate a signal to the portable electronic device that the portable electronic device interprets as input to keys on the portable electronic device by a user of the portable electronic device.

Abstract: An approach is provided for generating accurate and substantially real-time map and location-based data in a cost-effective manner. Specifically, one or more communications within one or more social networks are monitored, processed, and mined to determine map-related information (e.g., maps, traffic, points of interest). The map-related information is then subjected to one or more threshold criteria (e.g., a correctness probability, a level of confidence, a degree of trust, an author's influence, a rating, or a combination thereof) to better ensure its accuracy before being made available to mapping and/or location-based services that can use the map-related information to develop better quality maps and/or location-based mobile applications (e.g., improved routing guidance, location recommendations, etc.).

Abstract: The present invention discloses a method for sending auxiliary detection signaling, comprising: for each base station in a base station group, that is, a first base station, the other base stations in the base station group except the first base station respectively send auxiliary detection signaling at the carrier frequency of the first base station. The technical solution saves both signaling overhead and power and reduces the complexity of a search carried out by an MS.

Abstract: Various embodiments provide adaptive monitoring of a wireless communication network. In one embodiment, a first set of network data generated for a wireless communication network is analyzed. The first set of network data is a set of historical network data for the wireless communication network. A baseline for at least one operating characteristic associated with the wireless communication network is determined based on the analyzing. A second set of network data generated for the wireless communication network is received. The second set of call detail records that has been received is utilized to determine if the at least one operating characteristic corresponds to the baseline. A set of monitoring operations performed by a network management system with respect to the wireless communication network is dynamically adjusted based on the at least one operating characteristic failing to correspond to the baseline.

Abstract: A radio communication system, a radio station, a network operation management apparatus, and a network healing method are provided that can suppress system performance degradation caused when a failure occurs in a radio base station, a network apparatus, or the like. In a radio communication system which includes multiple radio stations (10, 20) and a network operation management apparatus (30) managing the radio stations and in which network optimization is performed, at least one of a first radio station (10) in which a failure occurs, a second radio station (20) different from the first ration station, and the network operation management apparatus (30) sends alarm information regarding the failure.

Abstract: Test systems for characterizing devices under test (DUTs) are provided. A test system for testing a DUT in a shunt configuration may include a signal generator and a matching network that is coupled between the signal generator and the DUT and that is optimized to apply desired voltage/current stress to the DUT with reduced source power. The matching network may be configured to provide matching and desired stress levels at two or more frequency bands. In another suitable embodiment, a test system for testing a DUT in a series configuration may include a signal generator, an input matching network coupled between the DUT and a first terminal of the DUT, and an output matching network coupled between the DUT and a second terminal of the DUT. The input and output matching network may be optimized to apply desired voltage/current stress to the DUT with reduced source power.

Abstract: The present invention provides a method and system for communicating physical cell identifier information to mobile stations. In one embodiment, a method includes detecting a need to change a physical cell identifier associated with a cell in a telecommunication network used for serving the mobile station. The method also includes communicating physical cell identifier information to the mobile station based on the detected need to change the physical cell identifier. The method includes employing another physical cell identifier associated with the cell based on the communicated physical cell identifier information. The physical cell identifier information is communicated in one or more modification periods such that said another physical cell identifier is employed by the base station and the mobile station at a boundary of one of the modification periods. Moreover, the method includes continue serving the mobile station based on the employed said another physical cell identifier.

Abstract: A method of selecting a wireless carrier system using a vehicle telematics unit includes identifying the system identity of a first base station with which a vehicle telematics unit is presently registered; detecting the presence of a second base station having a different system identity using the vehicle telematics unit; determining that the system identity of the first base station is preferred by the vehicle telematics unit with respect to the system identity of the second base station; and registering the vehicle telematics unit with the second base station when the signal strength of the second base station is greater than the signal strength of the first base station.

Abstract: The problem of unsynchronized internal clocks of user equipments in a cellular communication system is addressed by a solution where a mechanism relying on a standalone clock function in user equipments is provided. Embodiments provide a network node that distributes a time reference to a user equipment (UE), and wherein the UE, using an internal clock function, time-stamps the logged measurements and/or events relative to the received time reference. When the UE has logged measurements the UE indicates to the network node that it has an available measurement log. The network node may then request several UEs to deliver their measurement log, respectively. The network node is then able to retrieve time stamped measurement information from the measurement log of each UE relative the sent time reference. Furthermore, the network node is then able to compare measurement information from each UE in a cell provided at the same time interval in all UEs.

Abstract: Methods and systems for optimizing cell searches in a mobile communication system supporting variable channel bandwidths are disclosed. A user device stores data identifying frequency bands, networks associated with the frequency bands, and various channel bandwidths supported by the networks. The user device is operable to dynamically update the stored data upon detecting a new network associated with one of the frequency bands.

Abstract: Provided is a method for reporting carried out by a terminal in a wireless communication system. The method comprises: receiving a public land mobile network (PLMN) list, which is information on one or more of PLMNs on which a logged minimization drive test (MDT) is valid; receiving information for executing the logged MDT; logging a measurement on the basis of the information for executing the logged MDT; entering a target cell in a radio resource control (RRC) connected state; determining whether or not the logged measurement is reportable; and if determined possible to report to the target cell, reporting the whole or a part of the logged measurement to the target cell. Whether or not the logged measurement can be reported is determined on the basis of the PLMN list.

Abstract: A method for managing adjacent relation among cells is disclosed in the disclosure. The method includes: obtaining adjacent cell configuration information of a current cell in real time; a Network Management System (NMS), an Element Management System (EMS) and a Network Element (NE), in turn, analyzing and processing the adjacent cell configuration information and adjusting an adjacent relation list of the cell, according to a hierarchical control strategy table preconfigured or in default configuration, wherein the hierarchical control strategy table is used to specify adjacent relation list configuration ability of the NMS, the EMS and the NE.

Abstract: Methods and apparatus are provided for directing a beam towards a receiving device in the presence of interference. A beam transmitted by a transmission source is received at a receiving device. The received beam is affected by an interference signal from an interfering source. The receiving device computes a covariance matrix that represents a channel estimate associated with the interfering source. The receiving device modifies a predetermined sounding signal based on the covariance matrix for transmission to the transmission source. The receiving device causes the transmission source to estimate an equivalent channel matrix based on the predetermined sounding signal and the modified predetermined sounding signal. The equivalent channel matrix represents the channel estimate associated with the interfering source and a channel estimate associated with the transmission source.

Abstract: A user equipment of a communication system includes a first communication circuit configured to operably receive ANDSF rule set and RAN rule transmitted from a communication station; a second communication circuit; and a control circuit configured to operably: select a target ANDSF rule out of the ANDSF rule set; determine whether the user equipment fulfills all validity conditions of the target ANDSF rule; select a target access network out of a prioritized network list defined by the target ANDSF rule if all validity conditions of the target ANDSF rule are fulfilled; determine whether the target access network fulfills all validity conditions of the RAN rule if the target access network is present; and control the second communication circuit to steer traffic specified in the target ANDSF rule or traffic specified in the RAN rule to a target access point of the target access network.

Abstract: A base station includes: an interface that transfers user data; a processor that controls the base station in accordance with a process including: obtaining a period of time from when a transfer unit receives the user data to when the interface transmits the user data; and detecting an abnormality in the interface based on the period of time.

Abstract: The specification and drawings present a new method, apparatus and software related product for handling interruptions, specifically passive interruption (or unintended interruption) for telephone communications (e.g., wireless) between users or user equipments (e.g., in LTE wireless systems). At least one monitoring electronic device can detect one or more unintended interruptions in an audio communication between at least two UEs in one or both communication directions before each of the one or more unintended interruptions occur. Upon this detection, at least one monitoring electronic device can provide an instruction to facilitate a shortened audio delay for audio data in at least one communication direction to offset the one or more unintended interruptions. The embodiments described herein may be applies to wireless/mobile communications and non-wireless/landline communications.

Abstract: A method for remotely monitoring and gathering information about a plurality of vehicles, including the steps of accessing the plurality of vehicles wherein each vehicle is individually operated, selecting vehicle data from the plurality of vehicles, communicating the vehicle data from the plurality of vehicles to a remote processor, and processing the plurality of vehicle data into population data by the remote processor. The individual operation of each vehicle preferably includes the steps of generating vehicle data, operating the vehicle based on the vehicle data with a vehicle controller, and storing the vehicle data in a database located on the vehicle.

Abstract: The claimed subject matter is directed to defining a framework that enables wireless communicability between base stations for maintenance and configuration purposes, even while disconnected from an operator network, and/or deployed in the field. Embodiments are particularly applicable in the cases of small-cell base transceiver stations deployed in inconvenient, secluded, elevated and/or difficult to reach locations. The small cell base transceiver station is operable to communicate wirelessly to wireless terminals and mobile computing devices by emulating select functionality from dedicated components in an operator network.

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: Systems and methods of satellite communications for moving terminals, including but not limited to on-the-move and mobile terminals (e.g., on-the-pause terminals), are implemented in certain embodiments using smaller antennas (e.g., aperture area with diameter less than 50 cm), open standard waveforms to secure availability from several suppliers, payment for service only when using the terminal, interference avoidance to adjacent satellites, and low cost. Low cost is achieved in part by operating at frequency bands that are currently operated by terrestrial microwave links so that existing low cost microwave components are utilized. The system also includes an interference elimination system that continuously monitors for interference to adjacent satellites from a user terminal's uplink signal.

Abstract: A spatio-temporal random voting scheme is provided that incorporates location distribution, spatial randomness, and temporal randomness in the collection of information from a plurality of sensing devices within the cognitive network. The region is divided into a plurality of sectors, where each sector is a portion of the region. A subset of sectors is selected from the plurality of sectors in the region to provide spatial randomness. A device is randomly selected from each sector in the subset of sectors to provide additional spatial randomness to the information collection process. Temporal randomness may be introduced by randomly selecting a timeslot within a sensing window period in which devices are to scan a frequency spectrum band to determine if a signal energy above a threshold is detected. Sensing reports are then collected from the selected sensing devices and used to determine whether the frequency spectrum band is available or in use.

Abstract: A SON element which is operative to carry out at least two different SON functions is provided, wherein each of the SON functions is associated with at least one SON related action, and wherein a SON related action, initiated by triggering a SON function, would have been adversely affected by another SON related action, initiated by triggering another SON function, had the SON element not affected a modification in operating conditions of the cellular network, wherein the SON element is operative to: (a) assign priorities to the different SON functions; (b) assign different weights to the SON related actions; and (c) coordinate execution of SON related actions, that when executed are carried out in a way that does not breach the priorities hierarchy and the weights' order assigned to the SON related actions, thereby improving operation of the cellular network.

Abstract: The frequency with which data is refreshed for an application executed by a mobile device may be dynamically set based on one or more of the state of the battery or the network access of the device, or the frequency with which the application is used. The data refresh frequency may also be dynamically set based on additional parameters, including, e.g., the strength of the signal of the network over which the mobile device is communicating.

Abstract: An information handling system display having a first part that includes a display screen and rendering electronics fastened onto a second part to seal the rendering electronics within the display. The first part is bonded onto the second part via an adhesive that forms a bond between the two parts. A shearing mechanism is also disposed within the display with at least one externally exposed end. A pulling force is applied to the at least one externally exposed end in order to cut through the bond when there is a need to separate the two parts from each other.

Abstract: A base station for use in a mobile telephony network includes an antenna arrangement coupled to a transceiver arrangement for producing a plurality of beams. A method of testing the base station comprises detecting at the transceiver arrangement the signal strengths of a test signal received via the beams; comparing and/or correlating the said signal strengths detected at the transceiver arrangement; and using the results of the comparisons and/or correlations to determine the configuration of the antenna arrangement and transceiver arrangement and/or to detect faults. The comparison of average signal strengths can be used to detect cabling faults, and beam errors. The correlation of un-averaged signal strengths can be used to determine which beams have the same polarization. Beam pointing directions and the allocation of antennas to sectors can be determined by monitoring handovers of mobiles moving between cells. Frequencies may be allocated to sectors according to a frequency re-use scheme.