Abstract: A mobile communication base station determines the oncoming direction of a radio wave with a simple arrangement and transmits a narrow angle beam in this direction. Received signals from a pair of wide angle beam antennae 21-1 and 21-2 having an equal configuration and a common orientation and which are located close to each other are fed to a direction finder receiver 22 and a communication receiver 15. By utilizing the fact that the both received signals have a coincident amplitude, a phase difference between the received signals is detected. The oncoming direction of the received radio wave (or the direction of a mobile station) is determined on the basis of the phase difference. A beam switcher 12 is controlled so as to connect a transmitter 13 to a narrow angle beam antenna (one of 11-1 to 11-4) which is directed in the oncoming direction thus determined.

Abstract: A system and method for providing local service to non-local subscribers in a telecommunications network. The systems and methods employ mapping of a subscriber IMSI with a unique local identifier for use by the local system for locally originating and terminating calls.

Abstract: Remotely controllable actuators are provided to alter the cavity size of bandpass cavity filters to alter the bandpass characteristics. In one embodiment, a stepper motor is used to provide lateral movement of a tuning plate to alter the size of the cavity. The neck of the cavity is also changed in length through the use of a tuning motor. A feedback loop is used to provide fine tuning of the length of the neck in response to changes due to temperature and vibration to offer maximum propagation of the signal to be transmitted. A coupling tuner is used to adjust to the resulting change in Q to the cavity. A tuning processor is used to receive signals from a remote location identifying the desired characteristics of the filter.

Abstract: A wide-band array antenna using a single real-valued multiplier for each antenna element is simple in construction and suitable for wide-band code division multiple access (WCDMA) mobile communication systems. A rectangular array antenna is formed by N×M antenna elements. Each antenna element has a frequency dependent gain which is the same for all elements. Each antenna element is connected to said single real-valued multiplier with a single real-valued coefficient, which is determined by properly selecting a number of points on a u-v plane defined for simplifying the design procedure according to the selected design algorithm.

Abstract: AMR coding mode control in cellular telecommunication systems is mainly performed centrally, controlled advantageously by RNC and based on the system load or quality measurements such as FER measurements. The MS is nevertheless allowed to change the AMR mode in certain situations.

Abstract: The invention relates to a method for processing a traffic channel request in a cellular radio system. To ensure that the allocation of a new traffic channel would not disturb adjacent cells, the method comprises the steps of: calculating the number of traffic channels in use in a radio cell; measuring the quality of ongoing connections of adjacent cells using at least to some extent the same frequency channels as said radio cell; and preventing the traffic channel from being allocated to a mobile station from said radio cell if the number of traffic channels in use exceeds a predetermined threshold value and if in any of said adjacent cells the mean value of quality for ongoing connections is lower than a predetermined minimum quality value.

Abstract: A radio transmission method for carrying out radio transmission in a radio transmission network formed of plural communication stations by control of a communication station set up as a central control station, wherein one station of the plural communication stations determines whether it is capable of relaying a signal sent from another station according to a condition of a power supply or the presence/absence of portability and, if it is determined that the relay transmission is possible, the one station sets up itself in a condition capable of relay transmission.

Abstract: Radio mobile terminal 120 is provided with antenna 129, transmitting/receiving output unit 121, image information output unit 122 for outputting image information, line quality monitoring unit 123 for monitoring line quality between radio base station device 110 and radio mobile terminal 120 based on signals received at transmitting/receiving output unit 121, display method selector 124 for selecting an appropriate image display method on image display unit 140 according to the line quality, and display method designator 125 for outputting the selected display method to adapter for image display 130. Adapter for image display 130 is provided with image display processor 131 for receiving the image information and displaying an image on image display unit 140, and display operation unit 132 for receiving the instructions of display method designator 125 and operating image display processor 131 to modify to an appropriate display.

Abstract: Disclosed is a surrogate service attendant for ensuring invocation of services subscribed to by users of mobile-terminal equipment which are unattached or unregistered. When a call for an unattached/unregistered user mobile-telephone equipment (UE) is received by a wireless communication network, the surrogate service attendant will ensure invocation of the user's service subscriptions according to a set of service handling instructions. The service handling instructions may be issued by an application server, which is operable to execute service logic programs for various value added services.

Abstract: Method and apparatus for dynamically allocating IP addresses in a wireless IP network. IP address servers determine the requisite IP address pools and guard bands for individual network cells to guarantee fair access to the network and facilitate handoff host handoff from a prior cell to a new cell. IP address servers also prioritize handoff and resident hosts that request an IP address from the IP address server. In particular, IP address servers assign a higher priority to handoff hosts over resident hosts that request an IP address from an IP address server in order to maintain a preestablished handoff host network connection instead of dropping a handoff host connection in favor of a new resident host network connection. Finally, each cell is allocated a minimum number of IP addresses to ensure a certain level of fair access to the network regardless of the cell wherein a handoff or resident host resides.

Abstract: In a transmission system, a modulator and a fractional frequency divider are introduced into the control loop of a voltage-controlled oscillator. It is shown that the benefit of this is a reduction in noise associated with the reduction of noise due to using a divider with a lower division coefficient. In one embodiment, the fractional divider is obtained by selecting different dividers in turn in accordance with temporal proportions corresponding to a required division fraction.

Abstract: A short messaging communication system for communicating short messages to a user located in an operating region of the system. Information beacons or beacons which function as store and forward devices operable in a corresponding local operating region communicate with terminal devices that are located within the local operating region. Short messages can be “private” messages wherein only specified recipients are permitted access, or “public” messages whose access is not limited to specific users. A message stored on a beacon can be retrieved by a recipient when the recipient's presence in the operating range is detected, whereupon the beacon will wirelessly transmit the message to the recipient device. For private messages, a password or other security access code may be required for input into the receiving device to decipher the received message.

Abstract: In the digital multi-subscriber radio telecommunication system which operates using frequency hopping technology and is intended for use in the 2.4 GHz ISM (Industrial Scientific and Medical) frequency band, in which a 20 dB channel bandwidth of a maximum of 1 MHz is prescribed, the known, DECT radio system operating using TDMA/FDMA technology is matched, in RF terms, to the ISM band and is modified such that the data transfer rate is reduced, preferably halved, by comparison with the data transfer rate of 1152 kbit/s, which is prescribed as standard for DECT. The system according to the invention can be used in cordless telephones.

Abstract: The invention relates to a method and arrangement by means of which a mobile station (MS, 400) operating in a cellular network measures and indicates the field strength of a signal sent by a base station (BTS, 451). From the measured signal it is calculated a virtual field strength (Pvr) on the basis of which it is determined whether the desired service (speech, data, GPRS, HSCSD) can be used at that field strength.

Abstract: The present invention relates generally to an information system, and more particularly to a system and method for providing access to an entity by context association.

Abstract: A method for determining a confidence limit for a telecommunication network element, whereby the number of data transmission connections established through the network element is stored into a database and a relative value as a ratio of the number of faulty operations in the network element to the number of data transmission connections is determined. A variable describing the relative number of faulty operations is assigned a target value for which a confidence limit is set, the deviation of the confidence limit from the target value changing in proportion to the number of the data transmission connections. The deviation of the confidence limit in relation to the target value becomes either smaller, in response to an increase in the number of data transmission connections, or larger, in response to a decrease in the number of data transmission connections. The confidence limits of the telecommunication network element can be updated automatically.

Abstract: A system, method and computer program for ordering, paying for and download digital products to a mobile device in a cost-effective manner. The mobile device includes a short range transceiver and a network transceiver. The mobile device accesses electronic shop server web sites which contain digital products for sale and hotspot network locations where these digital products may be downloaded to the mobile device via the short range transceiver. The hotspot network locations contain a hotspot device for transmitting the digital products to the mobile devices via the low power radio frequency signal of the short range transceivers when the mobile device has detected the low power radio frequency signal. Using this system, method and computer program, a user of a mobile device may download large amounts of digital data without incurring telephone or cellular phone charges.

Abstract: The present invention provides a multiple band mobile radio (also referred to as a Wireless Communication Device (WCD)) capable of communicating with both a satellite communication system and a terrestrial communication system. The satellite communication system can be, for example, a Low Earth Orbit (LEO) satellite system. The terrestrial communication system can be a Personal Communication System (PCS), or a cellular system, including either an analog or a digitally based cellular system. The cellular analog system can be AMPS. The digitally based cellular system can be a CDMA or a TDMA based communication system. The WCD can concurrently receive signals from the terrestrial communication system and the satellite communication system.

Abstract: A method for controlling message transmission by a telecommunications device (110). A trigger configuration signal (150) including a dynamic logic expression (160) is received by the telecommunications device (110). The dynamic logic expression (160) defines one or more conditions associated with the transmission of a message (140). The telecommunications device (110) applies the dynamic logic expression (160) and transmits the message (140) if the dynamic logic expression (160) is satisfied.

Abstract: A system of advertising information on one or more mobile vehicles as a function of the vehicle's location. The system comprises mobile units and a central system for controlling the displays on the mobile units. The mobile units include displays visible from the outside of the vehicle, a controller, and a wireless communication system for repeatedly transmitting a locator signal to and receiving display-selection messages from the central system. The central system includes a wireless communication system for receiving locator signals from the mobile units, a memory and a processor. The central system determines a zone in which the mobile unit is located, selects a display to be shown by the mobile unit based on the zone that the mobile unit is located, and transmits a display-selection message to the mobile unit identifying a selected display message to be shown on the mobile unit's display.