Abstract: A variation compensating unit that compensates an amplitude variation and phase variation efficiently and that improves system reliability and communication quality. A first combining section generates a first combined signal by combining signal on different transmission paths in which a variation has not occurred. A second combining section generates a second combined signal by combining signal on the different transmission paths in which a variation has occurred. A compensation value calculating section calculates compensation values for compensating variation according to the transmission paths on the basis of the first combined signal, the second combined signal, and signal on each transmission path in which a variation has not occurred or in which a variation has occurred. A compensating section compensates variation dynamically on the basis of the compensation values.

Abstract: A wireless communication device performance, such as standby time, is improved by adaptively allocating surplus system resources to change quick paging channel parameters at the system, such a system being for example, a base station. Adaptively adjusting the quick paging channel parameters allows available base station resources to be allocated to the quick paging channel, thereby enabling the wireless communication device to demodulate the quick paging channel more reliably. Parameters such as the number of quick paging channels, the data rate used by the paging channel, and the quick paging channel transmit power level are weighed and adjusted.

Abstract: A method of providing call charge information in a mobile telecommunications system. The method comprises maintaining in a home mobile telecommunications network a set of call charging algorithms which correspond to respective foreign mobile telecommunications networks. The algorithms are transferred periodically to respective foreign networks, wherein the transferred algorithms may be used by the receiving foreign networks to calculate call charge information for subscribers of the home network when they are roaming in the foreign networks.

Abstract: A system for managing return channel bandwidth in a two-way satellite communication network is disclosed. A plurality of transceivers are configured to transmit backlog information over a return channel via a satellite. The backlog information specifies an amount of queued traffic for the respective transceivers. A hub is configured to receive the backlog information and to allocate a predetermined amount of return channel bandwidth to each of the plurality of transceivers. The hub determines whether additional return channel bandwidth is available to accommodate a remaining backlog such that a bandwidth allocation amount is set to a level associated with one of the plurality of transceivers having the largest backlog. The hub selectively identifies a transceiver among the plurality of transceivers having a next largest backlog based upon the determined available return channel bandwidth.

Abstract: A telecommunication system incorporates individual station instruments simplified by wireless operation, voice dialing, prepaid accounting and out-call operation, all enabled by cooperative system operation including supporting central equipment. Wireless operation of the central equipment involves a multiple port wireless platform along with other units for interfacing a multitude of mobile station instruments simultaneously for interactive audio communication to, regulate control, monitor and record operations of the instruments, and bridge communication with selected remote terminals through the public switched telephone network. Message capability, emergency abort to an operator station and security features supplement the basic system.

Abstract: An access node has a portal which performs interfacing between a wireless network domain and content/service providers in the Internet. On the wireless side the portal is linked with an SMSC, a CBC, and a USSD server for interfacing with and management of bearer stacks. Service functionality includes modular systems including a Push server, a Pre-paid calling server, and a location server in addition to internal portal functions. The latter provide for subscriber self-provisioning, customer care provisioning, subscriber device provisioning, and service provisioning. Thus, the node caters for both particular subscriber service and mobile device requirements.

Abstract: Certain antenna arrangements are provided, and active radiator units are presented which may form those antenna arrangements. Various subcomponents of such antenna arrangements and active radiator units are provided. Systems and methods, and portions thereof, facilitate the assembling and arranging of antenna elements, active radiator units, and subcomponents of such antenna arrangements and active radiator units. They also facilitate the controlling of the operation of one or more aspects of a communication site, particularly an active radiator unit within a given antenna arrangement.

Abstract: Methods and apparatus for implementing a Mobile IP mobile router are provided. In accordance with one aspect, the Home Agent receives a registration request packet. The registration request packet may include a care-of address for the mobile router. Networks associated with the mobile router are then identified. The Home Agent then updates a routing table to associate the identified networks with the care-of address. In addition, the Home Agent updates a mobility binding table with the care-of address for the mobile router. In accordance with another aspect, routing information is exchanged between the Home Agent and the mobile router. A routing table associated with at least one of the Home Agent and the mobile router is then updated as appropriate to include the exchanged routing information.

Abstract: An electrochemical emergency power supply for a cellular telephone otherwise having a main battery. The emergency power supply, once activated, provides the cellular telephone with power for operation of the cellular telephone for at least a predetermined duration. The emergency power supply is an emergency cell that is selectively activated by the cellular telephone user, preferably through the exposure of the emergency cell to ambient air, when needed. The preferred emergency cell is an oxidizing zinc-air electrochemical cell that is held in a hermetically-sealed compartment which is selectively unsealed to activate the emergency power supply.

Abstract: A system and method for selecting from a plurality of data service options in a wireless communication network is presented. The system includes a terminal device for originating a call and for transmitting and receiving data in accordance with a selected data service option. The terminal device includes a dialing interface for inputting a sequence of one or more symbols representing a dial command string for originating the call. The input symbol sequence includes information indicating the selection of a data service option. The system also includes a communication device, coupled to the terminal device, for receiving the dial command string from the terminal device, for storing a plurality of pre-determined symbol sequences including standard telephone numbers and reserved telephone number sequences representing different data service options, and for comparing the contents of the dial command string with the stored pre-determined symbol sequences.

Abstract: A radio receiver having a circuit arrangement for checking the quality of reception at an alternative frequency to a received transmit frequency. The radio receiver has two tuners for converting the received signals to two different intermediate frequencies and a switch, which is preferably switched by a microprocessor, for optionally forwarding signals from signal processing branches that are each connected to one of the tuners. This reduces the cost of implementing the second receiver, at the same time reducing the barely noticeable impairment of the set program when checking the quality of reception at the alternate frequency. The latter is achieved by positioning the switch upstream from an analog-digital converter, operating at a sampling frequency, of an intermediate frequency stage. The different intermediate frequencies are selected so that they both meet the following condition: f0=(n+R)fa where n is a natural number, and 0≦R≦1 applies.

Abstract: A proxy switch, communication methods, and communication logic for use in a mobile network are described. A proxy switch is deployed between a base station subsystem and a mobile station center. It receives signaling messages and either retransmits them, blocks them, converts them, or siphons them to an alternative network. Besides providing an ability to offload offload mobile traffic it provides a platform for new communication services. A proxy switch includes signaling message handling logic for receiving signaling messages from the MSC and BS in accordance with said mobile signaling protocol. Message transmission logic issues messages to the MSC and BS. A FSN and a BSN are provided for communication with the MSC, and another FSN/BSN pair are provided for communication with the BS.

Abstract: The present invention is directed to a method and to a system for regulating the transmission power of a mobile station (2) of a mobile radiotelephone system in which information are transmitted in various carrier frequencies with a frequency hopping method. The fixed station (1) comprises a receiver (4) for receiving information that are transmitted from a mobile station (2). The fixed station (1) also comprises a detector (11) for detecting the transmission quality of the transmitted information. When the transmission quality is good and the information were transmitted with a high transmission power, a first message for lowering the transmission power is sent to the mobile station and, when the transmission quality is poor and the information were transmitted with a low transmission power, a second message for raising the transmission power is sent to the mobile station. The present invention serves the purpose of lowering the power consumption in a mobile station of a mobile radiotelephone system.

Abstract: A subscriber terminal initiates an authentication procedure with a supporting wireless communications system in response to either a timer expiration based trigger, a state change based trigger, or a combination timer/state based trigger. With respect to the timer expiration based trigger, a countdown timer is set by either the subscriber terminal or the supporting system and thereafter monitored for expiration to trigger authentication. For the state change based trigger, the subscriber terminal monitors for any transition from an operating state wherein use of an air interface connection with the supporting system has been suspended to trigger authentication. Furthermore, for the combination timer/state based trigger, the subscriber terminal sets a countdown timer and monitors for an operating state transition that occurs subsequent to timer expiration to trigger authentication.

Abstract: The communication terminal apparatus measures reception quality and reports the measurement result to the base station apparatus, and the base station apparatus switches the transmission rate based on the reported result of the reception quality. In this way, the transmission rate is switched starting at the point in time at which the reception quality of the communication terminal apparatus deteriorates. Furthermore, the transmission rate is switched so that the amount of interference with others is within the allowable range according to the channel condition between the communication terminal apparatus and base station apparatus.

Abstract: A communication management system (48) for personalized mobility management of wireless services includes at least one wireless communication device (36), a mobility aware content server (50), and a wireless communication system (10). The mobility aware content server (50) sends a location specific content (60) to the wireless communication system (10) in response to a current location (62), a movement speed (64), and a movement direction (66) of the wireless communication device (36). The wireless communication system (10) is coupled to the mobility aware content server (50), and, upon receipt of the location specific content (60) from the mobility aware content server (50), transmits the location specific content (60) to the wireless communication device (36).

Abstract: The communication terminal apparatus measures reception quality and reports the measurement result to the base station apparatus, and the base station apparatus switches the transmission rate based on the reported result of the reception quality. In this way, the transmission rate is switched starting at the point in time at which the reception quality of the communication terminal apparatus deteriorates. Furthermore, the transmission rate is switched so that the amount of interference with others is within the allowable range according to the channel condition between the communication terminal apparatus and base station apparatus.

Abstract: The invention relates to a method and an arrangement for forming a beam for transmission in a TDD communication system, wherein an antenna comprises several elements. A multipath propagated signal is received and an antenna response is estimated. A subset of the responses is selected and beam forming coefficients are calculated by using the selected subset. The signal to be transmitted is multiplied by the beam forming coefficients. The inventive solution can be used in a call set-up.

Abstract: A radio communication system (100) has talkgroups or working groups that intercommunicate with each other on broadcast calls. Multiple working groups are associated with an announcement group. A subscriber unit (112a-f) may monitor talkgroup communications or announcement group communications. When communications to a talkgroup are initiated, a grant message (300) is sent to subscriber units affiliated with the talkgroup. A new grant message (350) is generated for subscriber units affiliated with the announcement group. The new grant message relieves subscriber units from storing an association between talkgroups and announcement groups, thereby allowing the association of announcement groups and talkgroups to be assigned dynamically.

Abstract: A wireless telephone system incorporates voice activated mobile instruments that are powered through a separate pod that includes electrical couplings either to A.C. structural power or D.C. vehicular power. Furthermore, the system accommodates both digital (DTMF) and voice (audio) communication from the keyless mobile instruments to and through a switched telephone network.