Abstract: A wireless communication system including a repeated pattern of cells, in which base station transmitters and user station transmitters for each cell may be assigned a spread-spectrum code for modulating radio signal communication in that cell. Radio signals used in that cell are spread across a bandwidth sufficiently wide that both base station receivers and user station receivers in an adjacent cell may distinguish communication which originates in one cell from another. Adjacent cells may use distinguishable frequencies and distinguishable codes, but it is sufficient if adjacent cells use distinguishable frequencies and identical codes. A repeated pattern of cells allows the codes each to be reused in a plurality of cells.

Abstract: A radio communication device which is capable of effecting communications in different communication systems and is highly advantageous economically has a main communication unit capable of effecting communications in a first digital cellular communication system (GSM), and an additional unit to be attached to said main communication unit for effecting communications in a second digital cellular communication system (PCN) which differs from said first digital cellular communication system. The main communication unit includes variable-bandwidth filters compatible with both GSM and PCN. The additional unit comprises a power amplifier, and the main communication unit has a power amplifier. Switching can be made between these power amplifiers to make the radio transmission device compatible with both GSM and PCN. The radio communication device has many components shared by GSM and PCN and hence is highly economical.

Abstract: Periodically, when a mobile is in its normal mode of operation, a first list of control frequencies transmitted by respective base stations of the geographical area in which the mobile is located is stored in a SIM card and a second list of control frequencies and associated respective maximal second receive levels measured by the mobile is stored in RAM. In response to being switched on, the mobile measures a first receive level for each of the control frequencies defined in the network and a comparator compares the first and second receive levels for each of the control frequencies of the second list, to assess movement of the mobile. To synchronize to a given network constituting a subnetwork of the radio communication network, the mobile uses the control frequencies defined in the radio communication network or the control frequencies from the first list, respectively, according to whether the mobile has moved or not.

Abstract: The satellite radio communication system of this invention provides communication between one or more service centers and an ensemble of fixed and mobile user terminals. One or more earth orbiting satellites are provided with each satellite having transmitter forming a down-link channel which is slow frequency hopped, and a multi-beam antenna system with a single channel per beam to time division multiple broadcast signals to all user terminals covered by each said beam, respectively. Each user terminal includes a transceiver for receiving a down-link channel broadcast from the one of said beams in whose path it lies, and a return link comprised of a dedicated narrow band broadcast channel with slow frequency hopping of down-link channel. There is a fixed set of frequencies through which the frequency hopping is carried out, with the plurality of fixed and mobile user terminals using the same set of frequency hopping frequencies.

Abstract: A two way communications path is established between a pager device and a paging service provider. The pager device generates a control command for the paging service provider, converts the control command into signals recognizable by a telephone network, and transmits the signals to the paging service provider over the telephone network. The paging service provider receives the signals from the pager device over the telephone network, generates one or more messages for the pager device in response to these signals, and sends the message(s) to the pager device over a wireless paging network. The pager device receives the message(s) over the wireless paging network.

Abstract: A base station for handling radio communication including flexible filler transmission is described. Therein, plural transmitters share a distributed responsibility to ensure that each time slot on a control channel carrier frequency is transmitted by one of the transmitters, even when no meaningful data is available for transmission. A control channel sign bus is provided which indicates if the control channel is currently scheduled to transmit on the next time slot. Idle transmitters can monitor this bus and, if necessary, provide the filler function when the control channel bus indicates that no transmission is currently scheduled for the control channel.

Abstract: A system for coding and transmitting traffic alert and collision avoidance data between vehicles (A, B and C) traveling within a given airspace (12). The airspace is divided into a grid of volume elements (14a, 14b . . . 14i), each of which is assigned a unique pseudonoise (PN) code. A vehicle (A) traveling through the airspace determines its position using signals from Global Positioning System (GPS) satellites. The vehicle's position places it within one of the volume elements in the airspace. A Traffic Alert and Collision Avoidance System (TCAS) transmitter (38) on the vehicle creates a navigation message that describes the position of the vehicle. A collision avoidance signal is then generated by modulating a carrier signal with the PN code representing the volume element containing the transmitting vehicle and with the navigation message. The collision avoidance signal is transmitted on a common communications channel using time-multiplexing based on a pseudorandom sequence.

Abstract: A two-way communication system for communication between a system network and a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into zonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and zonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The preferred mobile unit includes a noise detector circuit to prevent unwanted transmissions. The system network further provides an adaptive registration feature for mobile units which controls the registration operations by the mobile units to maximize information throughput.

Abstract: An apparatus for adaptive-power control of a spread-spectrum transmitter of a mobile station operating in a cellular-communications network using spread-spectrum modulation. A base station transmits a first spread-spectrum signal. A mobile station has an automatic-gain-control circuit for generating an AGC-output signal, from a received signal. The received signal includes the first spread-spectrum signal and an interfering signal.

Abstract: An application device (401) is connectable with a donor device (541) such as a portable memory card (560) or widely accessible central database (550). The donor device (541) stores and provides preferences to the application device (401). The donor device (541) contains a reference preference memory capable of storing preferences for a particular user. A controller (450) accesses the donor device, when the donor device is available, to obtain preferences that pertain to the particular user under certain conditions and stores preferences obtained from the donor device in the session preference memory (490) of the application device (401) for use in a session by the particular user. When the donor device is unavailable, alternate preference establishment procedures are used.

Abstract: A comprehensive method for mobile station registration in a cellular communication system wherein registrations are made due to multiple stimulus. Registration can occur as a function of distance traveled since the previous registration. Registration can occur due to entering the coverage area of a base station assigned to a zone in which the mobile station has not recently registered. A registration timer can be used to ensure a minimum time between registrations. Registrations can occur at power up and at power down. The mobile station can be ordered to register by a transmission from a base station. Registration can occur due to parameter changes with in the mobile station. Registration may also occur through necessary communication with a base station which is not expressly directed to registration.

Abstract: A microcellular communications network includes a plurality of base station units and corresponding antenna units. The base station units are housed in a common location. Each includes either conventional transmitters and receivers or all digital transmitter and receiver equipment, and interface circuitry to a mobile telecommunications switching office. The microcell traffic output is applied to a frame generator/multiplexer. The output of the frame generator/multiplexer is applied to a digitally modulated laser. The laser output is conveyed by fiber to a remote antenna unit, which demultiplexes the microcell traffic signal and applies it to a digital-to-analog converter. The output of the digital-to-analog converter is applied to a power amplifier, which in turn is connected to a main antenna. RF signals from the mobile units are received at both a main and a diversity antenna. The received signals are filtered, digitized, multiplexed together and transmitted over the optical fiber back to the base station.

Abstract: A satellite system antenna/high frequency unit of a mobile terminal of the present invention is constructed with a satellite system antenna for a mobile satellite communication system and a satellite system high frequency circuit and a first interface is provided externally of a casing of the unit. A ground system antenna/high frequency unit is constructed with a ground system antenna for a mobile ground communication system and a ground system high frequency circuit and a second interface is provided externally of a casing of the unit. A radio control unit includes a circuit portion within a casing thereof for demodulating a receiving signal to an input intermediate frequency signal and modulating a transmission signal and converting it into an intermediate frequency signal. The radio control unit further includes a radio control interface and a set of switches provided externally of the casing and, in use, only one of the first and second interfaces is connected to the radio control interface.

Abstract: A method for facilitating communication between parent telephones and child telephones in a cordless telephone system. The method includes steps of dividing a plurality of channels into groups and assigning each parent telephone to one of the groups. When a child telephone is registered with one of the parent telephones, the child telephone may scan only the channels in the group assigned to the parent telephone with which the child telephone is registered, rather than the entire plurality of channels in the cordless telephone system.

Abstract: In a frequency hopping cellular communication system (40) having a number of base sites (41-48) and using mobile assisted handoff, a method is offered of providing base site identification signals. The method includes the steps of assigning each base site of the number of base sites to a slot of a intersite control frame; and, periodically transmitting, in the assigned slot of the intersite control frame, the identification signal of the base site.

Abstract: A method and a home location register for starting a short message transmission in a mobile telephone network. To ensure that a short message is delivered successfully, a time supervision is started upon including an identity of a short message service centre in a subscriber-specific list. When a time preset in the time supervision expires, a short message transmission starting message is transmitted to each one of the short message service centres the identity of which is included in the list. The identity of the short message service centre is deleted from the list contained in the home location register. Each short message service centre transmits, in response to a short message transmission starting message, the short message to a gateway mobile exchange for the short message to be forwarded to the subscriber.

Abstract: An off-load cellular system controls cellular service between a main cellular system and the off-load cellular system and provides off-load cellular service to a mobile telephone. The off-load cellular system includes a receiver circuit, monitoring and receiving an origination message broadcast from the mobile telephone located in the off-load cellular system, and a system controller, for receiving the origination message output from the receiver circuit, and for outputting a connect signal indicating whether the off-load cellular service is to be provided to the mobile telephone responsive to the origination message.

Abstract: Increased coverage and macro diversity from a single base station in a wireless communication system by having a base station coupled to N antennas is described. Increased coverage and macro diversity are achieved by transmitting from the base station N control messages each via one of the antennas, and transmitting a data message addressed to a mobile unit via a particular one of the antennas previously assigned to the mobile unit for an active call. The mobile unit receives the control messages and the data message and analyzes the control messages to identify from the antennas a best antenna. The mobile unit then transmits to the base station a new antenna request identifying the best antenna in an uplink control slot of a frame. The uplink control field is associated with the particular one of the antennas. The base station uses the best antenna to transmit subsequent data messages addressed to the mobile unit.

Abstract: A method for relocating a subscriber in a voice messaging system (VMS) which is connected with an extensive digital mobile network (GMS), including a plurality of mobile switching centres (MSC) and a home location register (HLR). In the method, VMS checks HLR repeatedly for the location of a subscriber and concludes on the basis of this information whether the subscriber has moved into the area of some other MSC for a period of time longer than a predetermined period of time and, in a positive case, the old VMS transfers the subscriber-related information to the new VMS, thus accomplishing the automatic relocation of the subscriber's home station in connection with a new MSC.

Abstract: A method and system for preventing fraudulent use in a cellular system whereby upon establishment of communication with said micro cellular system, a maintenance console transmits an identifier to the control unit of said micro cellular system. The control unit compares the transmitted identifier to a stored value and controls the operation of the micro cellular system based upon said comparison. Operations of the micro cellular system are terminated if said transmitted value does not match said stored value and maintained if a match is found. The control unit additionally includes a time limit timer which is set upon activation of the control unit and is adapted to be reset upon command from the maintenance console, which command accompanies each communication for which access is maintained. Operation of the micro cellular system is terminated when said time limit expires without resetting.

Abstract: The present invention provides an improved cellular communications system which reduces the dynamic range of a received multicarrier signal. The cellular communications system includes at least one cell site. A base station cooperating with an antenna is positioned within the cell site and is configured to communicate with at least one wireless terminal. A receiver is positioned within the base station for receiving multicarrier signals. Within the receiver is positioned a dynamic range-reducing multicarrier signal processor which reduces the dynamic range of a received multicarrier signal.

Abstract: A mobile communication system permits a mobile terminal to operate in a microzone system which services a local area and to also operate in a cellular telephone system which is available in the local area. The microzone telephone system uses the same frequency band and channels of the cellular telephone system and includes a monitoring receiver which monitors the channels within that frequency band and makes those channels which are less likely to interfere with the cellular telephone system available to the microzone system. The microzone system includes a portable terminal which is capable of accessing the cellular system and, when in range of the microzone system, capable of accessing the microzone system on idle ones of the cellular channels which have been made available to the microzone system.

Abstract: A messaging system capable of transmitting messages to receivers which roam between coverage areas. In one configuration, a coverage area (100) is divided into a plurality of zones (110). A single simulcast system identification (SSID) number is assigned which consists of a local identification number which identifies the coverage area (100), a zone identifier which identifies a zone (110) within the coverage area, traffic splitting flags and a frequency. For larger roaming areas, a network (200) is defined as consisting of a plurality of service areas (210) and is identified by network roaming identification information (NRI). NRI information and/or SSID information is stored in a receiver according to desired coverage and like information is transmitted in the corresponding zone or service area.

Abstract: A system and method reduces degradation of voice quality due to Fast Associated Control Channel (FACCH) format signaling between a mobile station and a base station on the digital voice channel. The present invention sends FACCH messages either at the expiration of a timer or during breaks in the speech pattern of a mobile user thereby improving digital speech quality while providing flexibility to implement features and services that require intensive FACCH signaling between a base station and a mobile station during voice conversation. Channel associated signaling messages that are not time-critical are synchronized with speech activity detection.

Abstract: A channel waiting method in a radio system, in which a plurality of base stations, mobile radio stations and a mobile services switching center which allocates radio channels to all calls in which one or more mobile stations participate and places the call in wait mode if radio channel capacity required by the call is not available. In order to avoid unnecessary reservation of radio channels and to ensure allocation of channels to all calls, the radio channel capacity available at a time is, at most, partly dependent on the waiting order of the calls, allocated to the waiting call for which the available channel capacity is the most suitable in view of the suitability value calculated for the call and when all the radio capacity required by the call is available.

Abstract: A mobile station apparatus and a base station apparatus for carrying out mobile communications according to TDMA technique and time alignment control are provided, wherein a guard time of a signal transmitted from a mobile station is reduced to improve the transmission efficiency, and also instantaneous disconnection of data signal at the time of channel switching is shortened. A measuring unit measures the received electric field strength of a radio wave from a base station, and a readout unit reads a time alignment value from a correlation table stored in a storage unit, based on the received electric field strength measured by the measuring unit. The correlation table is obtained beforehand through measurement or the like, taking account of a correlation found between the received electric field strength and time alignment value. A transmitting unit transmits data to the base station according to transmission timing adjusted based on the time alignment value read by the readout unit.

Abstract: A RF sniffer module and method for detecting the availability of cellular communication channels for data transmission. The module monitors the channels used in a cellular communication network to determine when a particular channel is idle, meaning it is not being currently used for communication. The module communicates the status of the channel to an overlay system. Thus, the overlay system is informed that a particular channel is idle and thus can be used for data transmission or that the channel is not available and thus the overlay system can not use that channel without interfering with the operation of the cellular communication network.

Abstract: A method and apparatus providing communications between mobile units and other communications devices, is disclosed wherein, in response to a request to call a mobile unit from an originating communications device, a paging signal is sent via a global communications network and received by a mobile unit. The paging signal contains caller and callee identification codes, which are decoded by the mobile unit. A paging response signal, in the form of a reverse call setup signal, is then transmitted from the mobile unit to the originating communications device. Transmission of the paging signal is preferably stopped when a correspondence condition exists such that the caller and callee identification codes of the paging signal correspond to the caller and caller identification codes of the paging response signal.

Abstract: The invention relates to a mobile telecommunication system having an auxiliary routing arrangement comprising auxiliary radio channel units and monitoring circuit. The auxiliary radio channel units are arranged in the base station of the system and the monitoring circuit are arranged in the mobile telephone switch of the system. The monitoring circuit monitor the setting-up of each call in the mobile telephone switch and, when faults occur, the monitoring circuit are adapted switch off the transmitter function of an affected radio channel unit and to replace the affected radio channel unit with an auxiliary radio channel unit which is allocated a frequency essentially corresponding to the frequency of the affected radio channel unit. The automatic replacement of an affected radio channel unit with an auxiliary radio channel unit ensures that the traffic handling capacity of the system is essentially unchanged.

Abstract: A land mobile radio communication system has a plurality of cell sites, each of which typically has a plurality of repeaters. The over-the-air radio communications between the cell site repeaters and the mobile radios in the system include both a voice component and a data component. The data component is carried as low-frequency subaudible information. Communication channels are provided between the radio users at each site as well as between users at different sites and between mobile radio users and the public telephone network. Within a cell site, the transmitted and received communicatios are digitized and passed through serial buses in a time multiplex fashion. The digitized voice is transferred between time slots to provide the required switching function. The system includes operational software to provide direct inward dial telephone number recognition, automatic voice prompts for a user entering a new cell, call priority override, fraud control for radio fleets and a dynamic control channel.

Abstract: Each mobile unit in a cellular communications system accumulates at least one mobility or communications traffic (teletraffic) statistic representative of "typical" operation of the mobile unit within the cellular communications system. The mobile units process or collect the statistics and then transmit the aggregate statistics to a microcell or macrocell base station at time of origination of a call to or from the mobile, request for a handoff of a call by the mobile unit or the registration process. Included within the characteristics which can be monitored in accordance with the present invention are the following: cell sojourn time; area sojourn time; call holding times; call throughput; number of previous handoffs in an ongoing call; time periods between two consecutive failed handoffs for the mobile unit; and, the ratio of calls originating from a mobile unit to the number of calls terminating to a mobile unit.

Abstract: A mobile switching center including multiple home location register platforms presented in varying configurations and connected to a network through a set of signal transfer points. In a master/slave configuration, a master platform is given primary responsibility for handling network service request messages, and dynamic data affecting messages are copied to a slave platform in order to maintain data integrity therein in the event the master fails and the slave must take over for the master. In a load sharing configuration, each platform is given primary responsibility for handling network service request messages of its "own" subscribers, and dynamic data affecting messages are copied between the platforms in order to maintain data integrity therein in the event one of the platforms fails and the remaining functional platforms must take over for the failed platform in addition to serving its own subscribers.

Abstract: The system of the invention has particular application to a wide area network (WAN) where call routing information often changes in one local area network (LAN) (e.g. a switching system) while other LANs (e.g. cellular communication systems) are unaware of the changes. Because of the heavy flow of traffic in such networks, the minimization of administrative traffic data is desirable. The invention solves the need for constant updating and auditing of the LANs in the WAN. One LAN is considered the master LAN for a given parameter and contains an accurate directory of administrative data for that parameter. Each of the other LANs operate on the assumption that the administrative or directory information it contains is correct.

Abstract: A comprehensive method for mobile station registration in a cellular communication system wherein registrations are made due to multiple stimulus. Registration can occur as a function of distance traveled since the previous registration. Registration can occur due to entering the coverage area of a base station assigned to a zone in which the mobile station has not recently registered. A registration timer can be used to ensure a minimum time between registrations. Registrations can occur at power up and at power down. The mobile station can be ordered to register by a transmission from a base station. Registration can occur due to parameter changes with in the mobile station. Registration may also occur through necessary communication with a base station which is not expressly directed to registration.

Abstract: It is enabled to perform the location confirmation as precisely as possible at a small number of receiving stations. In the respective stations, after performing the operation of filtering and amplifying at the front end portion, the signal passes through the discriminating portion corresponding to the transmission signal from the transmitter. Thereafter, the electric power or amplitude of the signal emitted from each transmitter is measured. The measured value is sent to the central station through the backbone communication network. The more the transmission distance of the electric wave is, the more the electric wave attenuates.Consequently, it is possible to know the zone in which the worker carrying the transmitter is staying nearby by respectively comparing with each other the electric powers of the respective signals; a, b, and c transmitted from the transmitters a-c measured by the respective receivers.

Abstract: The present invention relates to a method for transferring a position mark (CO-B0) of a mobile subscriber (B0) in a telecommunications system. The telecommunications system includes a first mobile telephone network (PLMN01) which includes a main switching center (GMSC01) to which a home location register (HLR0) is connected. The telecommunications system also includes a second mobile telephone network (PLMN02) which includes at least one first switching center (MSC-B0). The first switching center includes a visitor location register (GLR-B0) in which the position mark (CO-B0) of the mobile subscriber (B0) is stored. The second mobile telephone network (PLMN02) also includes a main visitor location register (GLR02) which is cognizant of the visitor location register (GLR-B0) of the second mobile telephone network (PLMN02) in which the visiting mobile subscriber (B0) is registered temporarily.

Abstract: In a mobile communication system comprising a plurality of base stations disposed in respective radio zones, a portable telephone set (20) comprises a radio transmission/reception section (24) for receiving a first area identification signal transmitted from a first base station. A main RAM (22) holds the first area identification signal as a current area identification signal. Responsive to an incoming call signal for the first base station, a main CPU (21) determines whether or not a user of the portable telephone set answers to the incoming call signal within a predetermined time interval elapsed since the incoming call signal is received. The main CPU (21) ensures one of the voice channels as an ensured voice channel by carrying out an automatic answering for the incoming call signal when the user does not answer to the incoming call signal within the predetermined time interval.

Abstract: A means of power control on the reverse link of a CDMA network is disclosed. Specifically, the forward link from the base station to the subscriber unit is used to direct the subscriber unit to modify the output power radiated. The forward link consists of the forward packet data channel and the forward channel control channel. The forward packet data channel carriers the informational data to the subscriber unit, and the forward packet control channel includes carries of a power control setting. The forward channel is bi-phase modulated with the forward packet data channel transmitted in-phase and the forward packet control channel transmitted in quadrature.

Abstract: A passive handoff cellular communication system includes a cell divided into a plurality of zones. A base station is connected by transmission apparatus to a plurality of antenna units. The base station includes analog RF signal generation circuitry for generating a plurality of RF signals on different channels and a first switch responsive to a first control signal for switching and combining the RF signals to form a composite RF signal for each zone. Analog-to-digital conversion circuitry converts the composite signal for each zone to a digitized stream of samples and applies the samples to the transmission apparatus for transmission to each corresponding antenna unit.

Abstract: An accurate position measuring system includes a communication satellite, a position measuring satellite, a position reference station, a network management station and a position measuring device. The communication satellite performs data communication. The position measuring satellite transmits position measurement data necessary for a position measurement calculation. The position reference station receives the position measurement data from the position measuring satellite and calculates positional error information. The calculated positional error information is transmitted to a network management station. The network management station collects the positional error information transmitted from the position reference station and transmits the collected positional error information to the communication satellite. The position measuring device receives the position measurement data from the position measuring satellite and calculates its current position.

Abstract: In a CDMA communication network, each base station (BS) is made to establish synchronism between a downward transmission signal directed to a mobile station (MS) and an upward reception signal received from the mobile station by adjusting in the mobile station a mobile generated SS pattern into an adjusted SS pattern of producing an upward transmission signal for reception at the base station as the upward reception signal. In order to get the adjusted SS pattern, the base station inserts in the downward transmission signal an inserted signal representative of a propagation delay t(D) between the base and the mobile stations and a propagation delay increment t(d) while the mobile station is in a prelminary state of receiving the downward transmission signal as a downward reception signal first from the base station and is in a steady state, respectively. The signals may ba propagated through at least one communication satellite.

Abstract: A system for servicing call establishment requests in a cellular telephone system on a priority basis is described. In this system, a base station receives a call establishment request either via an external MTSO (mobile telephone switch office) or PSTN (public telephone switch network), or internally from a call establishment request, broadcasted by a mobile unit associated with a first subscriber within the cell of interest. Both the base station and the mobile unit are located in a cell (i.e., the cell of interest) of the cellular telephone system. The base station determines whether it has a free channel to service the call establishment request. If the base station does not have a free channel to service the call establishment request, then a call processor determines a service priority level of the first subscriber. This service priority level is communicated to the base station.

Abstract: A method and apparatus for transmitting and receiving signals in a base station with an antenna array in a cellular communication system. The available communication channels are divided into a plurality of classes. The base station transmits signals to the mobile station in a first class of channels in a wide antenna lobe. The position of a mobile station can then be determined from signals received at the base station from the mobile station. After the position of the mobile station has been determined, the base station can transmit signals to and receive signals from the mobile station in a second class channel with a narrow antenna lobe.

Abstract: The present invention provides an apparatus for credit based management of a telecommunication system. One embodiment of the apparatus includes an interface for communicating credit information on a particular subscriber and for receiving call records for the particular subscriber that are derived from a switch which establishes connections between telecommunication devices. A credit limit device then utilizes the credit information to establish a credit limit for the subscriber. The apparatus also includes a device for comparing the particular subscriber's call usage to a credit limit established for the subscriber based on information obtained from the credit bureau. An output device is used to provide an indication that the subscriber has exceeded their credit limit. Another embodiment of the apparatus, includes a device for, upon expiration of a predetermined time period, contacting the credit bureau to obtain a new credit score for a subscriber and use this score to update the subscriber's credit limit.

Abstract: A method for adaptively switching between the WS and S authentication schemes is based on the customer's usage. A first preferred embodiment provides a 2n-1 state automaton (where n>1), which switches from the WS Scheme to the S Scheme when the automaton passes from state n-1 to state n, and vice versa. At each new registration, the automaton increases one state if more than 1 call was made (i.e., incoming or outgoing) during the cycle; decreases one state if no calls were made during the cycle; and remains the same if 1 call was made during the cycle. The value of n is preferably determined by the PSP based on customer usage. A second preferred embodiment begins each new cycle with the WS Scheme, and will switch to the S Scheme if a call is made during the registration.

Abstract: In a cellular communications system having a plurality of cells, each cell being served by at least one of a plurality of existing base stations, a method of determining a location for a new micro base station antenna involves first providing a test antenna at a test location in one of the cells. Then, for a predetermined time period, a monitoring procedure is performed to assess how many mobile stations are close enough to the test location that they would be served by a micro cell having a base transceiver antenna at the test location. The monitoring procedure involves, in the test antenna, receiving an uplink access attempt signal that is transmitted from a mobile station to an intended one of the existing base stations. Then, signal strength of the received uplink access attempt signal is measured and compared to a predetermined threshold level. If the measured signal strength is greater than the predetermined threshold level, then a count value is incremented.

Abstract: A mobile terminal locator for locating a mobile terminal in a cellular telecommunication system having a plurality of base stations and associated cells. The mobile terminal locator identifies a plurality of candidate handoff cells having sufficient signal strength to maintain a call with the mobile terminal, and forces sequential handoffs of the mobile terminal from its serving cell to the plurality of candidate handoff cells. The locator then measures signal strength and propagation delay between the mobile terminal and each base station associated with each of the plurality of candidate handoff cells and between the mobile terminal and the serving base station. Either the signal strength, the propagation delay, or both are then used to calculate a distance between the mobile terminal and each base station associated with each of the plurality of candidate handoff cells and between the mobile terminal and its serving base station.

Abstract: A mobile communication system and a mobile station paging method are provided which are capable of sending a mobile station paging signal only to base station areas in which a mobile station to be paged for an incoming call might be present. The mobile communication system is provided with a location register 31, a mobile station paging signal transfer node 21 and base stations 11 to 13. The mobile station paging signal transfer node 21 receives a mobile station paging signal from the location register 31 which has identified the location area for paging a mobile station for an incoming call, and the mobile station paging signal transfer node 21 searches sublocation information to identify certain base stations to receive the mobile station paging signal.

Abstract: In a mobile station for use in radio communication with a selected station selected from a plurality of base stations which are placed at different positions and which have station numbers, respectively, position data are previously memorized in an RAM (13) in a form in which the position data are dependent on the station numbers, respectively. The position data represent summary addresses of the positions, respectively. The selected station transmits a particular signal representative of a particular one of said station numbers. A CPU (12) reads, as a particular datum, one of the position data from the RAM in accordance with reception of the particular signal. The CPU makes an LCD (15) display the particular datum in response to operation of a keypad (16).

Abstract: An improved apparatus for connecting a mobile end system to a communications network includes a mobile end system with storage that is assigned a first unique identity code. An interface with a first transmitter is assigned a second unique identity code and is linked to the mobile end system via a first communications channel. A data switch with a second transmitter is assigned a third unique identity code, and is linked to the interface via a second communications channel. The data switch is also linked to the communications network via a third communications channel. The mobile end system transmits at least the first unique identity code to the interface, which transmits a least the first and second unique identity codes to the data switch, which in turn transmits at least the first, second and third unique identity codes to the communications network.