Abstract: A portable cellular phone including the ability to customize a ring signal. The device accepts a spoken voice signal entered via a microphone and converts that signal into a digital audio signal. The device then obtains musical scale information from the digital audio signal by extracting frequency components. The device uses those frequency components to generate an audio output signal based on the extracted musical scale frequency components. This output signal can then be used as the ring signal, or for other purposes. Thus, a user can input a desired musical scale using the user's voice to customize the ring signal without relying solely on keypad operations.

Abstract: A method and apparatus for placing a long distance call using a mobile telephone with a data messaging device communicating via a separate data network (rather than the call signaling network) to a Remote Telephone Call Origination (RTCO) platform. The mobile telephone analyzes each number dialed to determine whether to utilize the RTCO platform or to dial normally. If RTCO is utilized, the mobile telephone transmits a data message with instructions for setting up the call. The RTCO platform then makes a call to the mobile phone and bridges this to a second call made to the dialed party.

Abstract: A method and system for monitoring traffic in a mobile communication network are disclosed which identify geographically regions of high traffic concentration or “hot spots”. This is done to allow the traffic distribution within a given area to be analysed so that network operators can retrieve information concerning the places where more capacity is needed. The hot spots are located by analysing reports from the mobile stations to identify the most often occurring cell patterns. These cell patterns can be associated with geographical locations which can then be visually displayed to identify the hot spots.

Abstract: In a wireless code-division multiple access (CDMA) system (100), a talkgroup (101) of subscriber units is provided. A sub-talkgroup (102) of subscriber units, forming a part of the talkgroup is assigned at least one inbound channel (416-417). The talkgroup is assigned outbound channels (415). Members of the sub-talkgroup may simultaneously transmit voice information (410-411) using the at least one inbound channel, which voice information is summed (412) and re-transmitted to the talkgroup using the outbound channels. Voice information is summed so that an individual talker receives summed voice information without the individual subscriber's voice content. Subscriber units in the sub-listengroup are allowed to transmit voice information only after requesting, and receiving, an additional inbound channel.

Abstract: The invention relates to a transmission method and a radio system comprising a base transceiver station acting as a transceiver and subscriber terminals acting as transceivers which establish a connection with each other with a signal transmitted through the base transceiver station, for which connection a radio channel is formed, in which a signal coded by the transceiver is transmitted. The transceiver comprises transmission means which transmit frames when the transceiver is in DTX mode. The radio system comprises measuring means which measure the signal received by the transceiver from the radio channel, and transmission means which during DTX transmit information in frames on the basis of the measurement result obtained from the measuring means, of which frames at least some are freely placed by the transmission means anywhere in the frame structure to be transmitted.

Abstract: A wireless communication system includes a system backbone, a host computer coupled to the system backbone, at least one base station coupled to the system backbone, the at least one base station including a base station transceiver for communicating wirelessly with mobile devices within the system, and at least one mobile device having a mobile device transceiver for communicating wirelessly with the host computer on the system backbone via the at least one base station. The at least one mobile device includes a software update schedule table for providing one or more times at which the mobile device is to inquire and obtain available software upgrades. Entries in the software update schedule table may be made manually through a user input associate with the at least one mobile device or wirelessly through communications received from the host computer.

Abstract: A radio receiver providing compensation for a direct current offset which includes a first frequency converter for converting a signal received by the receiver to first and second intermediate frequency signals, each signal having an angular frequency &ohgr;r and being in phase quadrature with respect to each other. All analog-to-digital converter for converting the first and second intermediate frequency signals to first and second intermediate frequency digital signals, each having an angular frequency &ohgr;r and being in phase quadrature with respect to each other, a direct current offset being generated within the analog-to-digital converter. A second frequency converter for converting the first and second digital signals and the direct current offset to first and second baseband signals, and low pass filters each having a cutoff frequency &ohgr;T for removing frequency components of the first and second baseband signals which are higher than &ohgr;r.

Abstract: A mobile unit communication apparatus (COMM APP) having digital and analog transmission (XMSN) modes is disclosed, which comprises: a radio wave XMSN and receiving portion including an antenna for transmitting digital and analog XMSN signals in the digital and analog XMSN modes respectively; a signal (SIG) processing portion including a DSP portion and an ASIC portion for processing the received digital and analog XMSN SIGs in the digital and analog COMM modes respectively; an input and output portion for inputting an input SIG and outputting an output SIG from the digital XMSN SIG from the digital processing portion in the digital COMM mode and from the analog XMSN SIG from the ASIC portion in the analog COMM mode; and a supply power saving portion for operating the ASIC portion and not operating the digital SIG processing portion in the analog COMM mode to reduce a consumption of the supply power.

Abstract: A vocal information system with the capability of retrieving and playing digital and audio data together with an audio system and associated cassette is disclosed. The audio system includes a housing, a communication bus, a bus connector, a radio receiver and a sound player. The housing has a slot for receiving a removable digital unit. The connector connects to the bus and to the removable digital unit and the sound player is selectably connected to the outputs of the radio receiver and the removable digital unit. Furthermore, the removable digital unit includes a digital storage unit for storing data thereon, a digital interface which communicates with an external digital processor and with the digital storage unit and a digital vocalizer at least for converting data stored on the digital storage unit to audio signals. The removable digital unit can be formed as part of a cassette, such as a cassette for a tape deck, or as part of a PCMCIA card.

Abstract: This invention uses a computer program to mine preexisting wireless data located in a variety of preexisting source GSM wireless network databases. The computer program either creates a new wireless database from parts of existing wireless databases or modifies an existing wireless database. The computer program replaces the current system's reliance upon manual data entry by data engineers to configure the operation of a new telecommunication switch or replace the software in a telecommunication switch that was damaged or requires a new wireless network data configuration.

Abstract: The invention relates to a method for the determination of neighbours of a sub-cell (122C) in a cellular radio network base station (100) applying dynamic channel allocation, and to a base station (100) implementing the method. The base station (100) comprises at least two sub-cells (122A, 122B, 122C). Each sub-cell (122A, 122B, 122C) comprises an antenna unit (118A, 118B, 118C) with a fixed connection to the base station (100). A transceiver (TRX1-TRX2-TRXN) is used for transmitting a signal through an antenna unit (118A, 118B, 118C). A measurement unit (124) measures through the antenna unit (118A, 118B, 118C) the reception power of the received signal. The invention is characterized in that a transceiver (TRX1) is used for transmitting a test signal (200) through the antenna unit of the sub-cell (122C) under examination. The test signal (200) is received though the antenna units (118A, 118B) of the of the sub-cells (122A, 122B).

Abstract: Profiles in personal communication devices are updated by a method called lazy updates or demand-driven updates. In a lazy update, information is transmitted between users of personal communication devices and updates are performed only when the users communicate for other purposes. Users and service providers may update their profiles as often as they wish. Then, when a call or service request is initiated based on a given profile, the initiator of the call or service request ensures that the profile that is being used is sufficiently up-to-date for the present purpose and, if it is not, updates the profile. Lazy updates can occur when communication occurs for reasons other than solely updating the information. Examples of such updates include modification of a user's schedule or changes in the services that a service provider offers. Updates that affect future communication, such as changes in address information, telephone numbers or email addresses, happen much less frequently.

Abstract: A non-predictive tone-coded-squelch (TCS) frequency determination method of scanning a plurality of radio frequency channels in a radio receiver and determining the presence of a standard tone-coded squelch frequency on the radio frequency channel (205) that includes determining a mathematical average of a plurality of subaudible tone samples from a radio frequency channel (211, 217) and then removing out-lying samples that differ from the mathematical average by some predetermined amount (219). A determination is made if the number of remaining samples is at least some predetermined percentage of the total samples taken (223) and a predictive tone-coded squelch detector is used to monitor for a standard tone-coded squelch frequency nearest to the a frequency corresponding to the mathematical average of the remaining samples (225) if the number of remaining samples is at least some predetermined percentage of the total samples taken.

Abstract: A method and apparatus for effectuating unidirectional and bidirectional communication directly between a mobile telephone and another device without the use of a mobile telephone system to carry the communication. A communication path and a communication format are assigned to the mobile telephone and the device either through a fixed preassignment or dynamically by the mobile telephone system. The communication path constitutes a portion of a radio spectrum assigned to the mobile telephone system, and the communication format includes a modulation type and a communication protocol. The communication path is removed from a set of communication paths allocated for use by the mobile telephone system and the communication path and communication format are stored in separate memories located in the mobile telephone and the device.

Abstract: A telecommunications system and method is disclosed for requiring a Mobile Station (MS) that calculates it's own position within a cellular network to report that calculated location to the requester. The MS can determine and store the location of the MS, along with a time stamp, in a memory therein at predefined intervals determined by the requestor. Once the location information has been calculated and stored, the MS can report all of the relevant historical location information to the requestor at predefined intervals determined by the requestor.

Abstract: A carrier changing apparatus in a mobile telecommunication system for generating a dummy frequency assignment signal for repeating a frequency conversion or providing a hard hand off based on a traffic signal is provided. In the carrier changing apparatus, a transmitting carrier changer transmits an input forward traffic signal having traffic and overhead information and generates a forward dummy frequency assignment signal based on the forward traffic signal. A receiving carrier changer receives and outputs a reverse traffic signal having traffic and overhead information from a mobile station and generates a delayed reverse traffic signal based on a reverse dummy frequency assignment signal from the mobile station.

Abstract: A control apparatus for a hand-held wireless telephone having a housing and operating in a first operational state of a plurality of sequential operational states. The control apparatus changes the operational state of the wireless telephone from the first operational state to a second operational state. The control apparatus itself comprises a detector that produces a signal responsive to a user grasping the housing of the wireless telephone and a controller responsive to receiving the signal produced by the detector and configured to select another operational state following the first operational state in a predetermined sequence of operational states.

Abstract: In a communication system having Low Earth Orbit (LEO) satellites (210), one or more Mission Operations Control Centers (MOCCs) (220), one or more Distributed Virtual Network Managers (DVNMs) (230), and several types of Customer Premises Equipment (CPE) (250, 260, 270, and 280), individual service providers (20) are able to control the network services they provide independently from other service providers (20) through local management of the DVNMs (230).

Abstract: A radio connection is adapted to an environment changing over the connection in a cellular radio system where the radio traffic between the base station and the mobile stations is arranged on a multiple access principle, according to a given frame structure (402). For a given radio connection between the transmitting device and the receiving device, there is reserved a given data transmission capacity in said frame structure. The receiving device measures the connection quality (103) during the connection, and on the bases of the measured connection quality, the size of the data transmission capacity (104, 110) reserved for said connection in said frame structure is changed.

Abstract: The present invention provides a method and system for reregistration of a subscriber unit in a global telecommunications network. The method and system includes receiving an event requiring authentication; determining if a threshold for subscriber verification has been reached; requesting subscriber verification if the threshold has been reached; and deregistering the subscriber if the subscriber is not verified. The method and system of the present invention prevents continued access to the network by deregistered subscribers for cross-protocol calls when deregistration messages are lost. In this manner, fraudulent use of the network by unauthorized users is decreased.