Abstract: The invention relates to a method for identifying base stations of a time division cellular network in a mobile station. An object of the invention is to speed up the identification of new base stations. In accordance with the invention frame timing difference data for the neighbor base stations (301) and/or the broadcast control channel time slot data for the neighbor base stations are transmitted from the serving base station to the mobile station; reception times for the neighbor base stations' system data are determined in the mobile station on the basis of said frame timing differences and/or the broadcast control channel time slot data (302) and system data are read and neighbor base stations are identified (303). The invention is also directed to a mobile station applying the method.

Abstract: An object of the invention is a method for implementing a messaging service between a terminal of a cellular network and a messaging server external to the cellular network. The method comprises receiving a message addressed to said terminal at the messaging server and sending an inquiry from the messaging server to a specific first network element of the cellular network to determine the readiness of said terminal to receive data. The method comprises determining by said first network element the readiness of said terminal to receive data and transmitting a specific first response message from the cellular network to said messaging server in response to said first inquiry. The readiness of said terminal to receive data is indicated in the response message for the purpose of transmitting said message to the terminal.

Abstract: A method and system for playing a distributed game over a wireless telecommunications network is disclosed. The game is initiated when a game server sends a task (e.g., a question) to a first group of mobile terminals. Each mobile terminal may either respond to the task (e.g., submit an answer) or forward the task to another mobile terminal. Once a mobile terminal forwards the task, that mobile terminal no longer retains the task. The game ends when a mobile terminal submits a correct task response, when a global time limit ends, or when all mobile terminals have submitted incorrect responses. Responses and forwards can be sent using any known data messaging technique.

Abstract: The present invention proposes a method for management of a database of a visitor location register in a telecommunication network, wherein said database has a predetermined storage capacity and is adapted to contain a plurality of data sets, each data set containing subscriber data associated to an individual subscriber of said telecommunication network or of another telecommunication network, said individual subscribers having at least once registered within a geographical area of said telecommunication network corresponding to said visitor location register (VLR), said method comprising the step of: selecting (S24) subscriber data of said database to be deleted from said database, wherein said selection being based on parts of said subscriber data on the basis of which a roaming behavior of the associated subscriber can be determined. Also, the present invention proposes accordingly adapted VLR and HLR devices.

Abstract: A method of tuning an alert device in a portable communication apparatus having a microphone. The method involves the steps of recording, through the microphone, an acoustic signal which is emitted by the alert device in response to a drive signal; deriving a characteristic value of the recorded signal; comparing the characteristic value with a reference value and generating a comparison result; and controlling the drive signal of the alert device in response to the comparison result.

Abstract: A system and method for efficient QoS signaling for mobile IP using RSVP framework in which mobile nodes are connected to correspondent nodes via plurality of intermediate nodes. The method has the steps of: programming in the mobile node for data packets propagating upstream data from a mobile node to correspondent node via intermediate nodes; initiating in the mobile node a first PATH message for upstream data; sending the first PATH message from the mobile node to the correspondent node via the intermediate nodes; programming in the correspondent node for data packets propagating downstream data from the correspondent node to the mobile node via the intermediate nodes; initiating in the correspondent node a first RSVP message for downstream data; sending the first RSVP message from the correspondent node to the mobile node via the intermediate nodes; and thereafter sending REFRESH messages only between intermediate nodes.

Abstract: To reduce the complexity of the correlation in a correlation based tracking of a code modulated signal received at a receiver, received samples and available replica samples are aligned to each other and the positions of the samples in the received signal and in the replica code sequences are grouped, each group comprising all positions at which the composition of the values of the samples of all of the replica code sequences is similar. The values of the received samples which are associated to a respective group are combined separately for each group to obtain a respective intermediate result. Then, a correlation value is determined for each replica code sequence by combining the intermediate results obtained for all groups separately for each replica code sequence, taking into account the values of the samples of the replica sequences in the respective group.

Abstract: In a technique for setting up calls in IP mobile networks, when an application level in a mobile station sends a setup message to set up a multimedia call, before sending such a message over the radio interface, the mobile station performs the appropriate procedures to setup the appropriate bearers over the radio interface and in the network to satisfy the call requirements specified by the application level in the setup message. The technique applies to both mobile originated calls and mobile terminated calls, the called mobile station performing the transport level procedures after having received a setup message and before sending a confirmation/call acceptance message back to the calling party. Furthermore, the allocation of radio resources for PDP contexts that will be used to carry the media of a multimedia IP called is delayed so that no radio resources are allocated to the PDP contexts activated before the call control signaling is exchanged.

Abstract: In a multi-user frequency domain spreading downlink MC-CDMA system, a group of sub-carriers can be replaced by an equivalent sub-carrier of a conventional OFDM modem for purposes of resource allocation to improve the system performance. The chips for a given user are spread only within the group. Confinement insures synchronization between different users' chips that is essential to the recovering and separation of user symbols at the receiver. There is no limit imposed on the group size, which permits different spreading code lengths to be used for different scenarios or for performance tuning.

Abstract: A method of forming directional antenna beams, comprising: directing at least two antenna beam signals by means of a beam formation matrix and pre-phasing pre-determined antenna beam signals formed with an antenna array in such a way that the signal of at least one antenna beam has a different phase compared with the signals of other antenna beams. The pre-phasing is implemented with a pre-phasing element, which comprises phasing coefficients in digital implementation. The pre-phasing element is implemented in such a way, for example, that the power of the sum signal of the antenna elements is evenly distributed to the different antenna elements in a pre-determined variation range.

Abstract: An input system for an electronic apparatus including at least one force sensing element and a joystick member. The at least one force sensing element is connected to an underside of a printed wiring board (PWB) of the electronic apparatus. The at least one force sensing element includes a plurality of force sensing domes extending in a downward direction from the PWB. The joystick member extends through the PWB and contacts the force sensing domes. The joystick member has a user contact section located above an upper side of the PWB. The joystick member is adapted to be moved to depress the force sensing domes towards the PWB.

Abstract: An RF transceiver having dual-mode envelope restoration architecture. In narrow-band applications such as GSM/EDGE, a switch-mode amplifier is used to provide an envelope signal for amplitude modulating the phase-modulated signals. To achieve required modulation bandwidth in wide-band applications such as WDCMA, an analog amplifier is used to provide the envelope signal. Furthermore, in the wide-band mode, the envelope modulation is applied through the base of an emitter follower while the collector voltage is scaled to achieve a desired power output in the amplitude-modulated signals.

Abstract: For transferring packets between a wireless data transfer device and a mobile communication network, temporary block flows are formed, and information is transferred in these block flows in one or more packet data traffic channels either in the first direction from the mobile communication network to the wireless data transfer device or in the second direction from the wireless data transfer device to the mobile communication network. In the method, information about the end of the block flow is set in a packet to be transmitted in a block flow when data transfer has stopped. When the transfer of packets in the first direction has stopped, at least one enquiry message is also sent from the mobile communication network to the wireless data transfer device.

Abstract: The present invention relates to systems and methods that employ a novel balanced duplexer that can be utilized to facilitate concurrent signal transmission and reception. The systems and methods can be employed within mobile devices such as cell phones and utilize two-filters (e.g., acoustic) with substantially similar input/output impedances interfaced with two couplers (e.g., 3 dB hybrid), which provide isolation and maintain the duplexer's input/output impedance. The couplers interface the filters to front/back ends such as signal processors, transmitters and receivers. The novel aspects of the present invention mitigate the need to employ external directional couplers between the duplexer and front/back ends. In addition, the two-filter topology enables employment of lower powered rated filters. The systems and methods further provide for separation and isolation of transmitters and receivers, which reduces noise coupling and enables the transmitter and receiver to be placed within close proximity.

Abstract: An apparatus, method, and system for a database of Bluetooth devices. The Bluetooth directory database accelerates, facilitates, and simplifies communications. Communications are made more efficient with a connectivity tool. Both the Bluetooth directory database and connectivity tool may be integrated into a Bluetooth device. The connectivity tool uses the Bluetooth directory database to correlate Bluetooth addresses of various devices together with other device identifiers, e.g., cleartextual representations. Thus, when other Bluetooth devices are encountered, information obtained from inquiry and/or page responses may be saved into the Bluetooth directory database for future reference. In one non-limiting example embodiment, communications are more efficient because the connectivity tool reduces the amount of subsequent Bluetooth inquiries and responses required to identify and/or engage in communications with Bluetooth devices.

Abstract: A mobile communications device is adapted to use applications resident on a remote network server. The display of the mobile device is divided into static and dynamic display zones. Inquiries originating externally from the mobile device are identified and restrictively routed only to the dynamic display. Internally generated inquiries trigger a indicator symbol within the static display. In this manner bogus requests for confidential identifiers may be avoided.

Abstract: A method of requesting access from a mobile station (MS) 10 to a network 8 by which to conduct user-to-user communications (e.g., requesting a dedicated traffic channel) is presented. A first time is when a user input at the mobile station 10 initiates a call. The first time as compared to a threshold time. A time-dependent code, such as a CDMA long code, is calculated for a random time if the first time is earlier than the threshold time, or for the beginning of a slot is the first time is later than the threshold time. A mobile station 10 to practice the method includes a user interface 26 whereby a call may be initiated at the first time, a processor 22 for calculating the time-dependent code, and a comparator for comparing a start threshold time to the first time. The threshold time is related to the slot time.