Abstract: To address the need for an apparatus and method for CDMA-dispatch soft handoff, the present invention enables mobile-initiated soft handoff for dispatch calls. A mobile station (120) in a dispatch call establishes an individual inbound link (137) with the serving base site (111). When the mobile station determines that a handoff with an adjacent site (112) is needed, the mobile station uses its individual inbound link to request a soft handoff with the adjacent base site. After notifying the adjacent base site, the serving base site then transmits the handoff information to the mobile station to enable the mobile station to begin a soft handoff with the adjacent site.

Abstract: A network, system and method for merging a packet service such as GPRS with a mobile IP is disclosed. The GPRS network includes a first base station for providing wireless access to a mobile node, a GPRS support node (GSN) connected to the base station, and a security gateway for connecting the GPRS network to a second network that may use mobile IP. The GSN is capable of creating an IP tunnel connecting it to the second network through the security gateway. The GSN is also capable of handling mobile IP specific messaging and converting the wireless access to mobile IP specific messaging.

Abstract: It is determined whether or not a receiver responds to a call from a caller. If it is detected that the receiver has responded, a communication channel is maintained, and thereafter two characters respectively representing the caller and receiver are communicated between the caller and receiver. Two characters are synthesized and displayed. The caller and receiver communicate of intentions with each other while letting the self character take a specified action.

Abstract: A transmission electric power control device includes: a coupler 12, detector 13, electric power amplifier 14, error detection means 15, target value generation means 16, gain variable means 17, control calculation means 18, control calculation parameter generation means 19, modulator 20, control variable addition means 21, transmission electric power control means 22, and transmission electric power designation means 23. In this case, the automatic transmission electric power control feedback loop includes: the coupler 12, detector 13, error detection means 15, control calculation means 18, control calculation parameter generation means 19, transmission electric power designation means 23, control variable addition means 21 and gain variable means 17.

Abstract: A method is provided for using an application (18) in a mobile station (1). The application has a first mode of operation and a second mode of operation. The first mode of operation is passive. In the second mode of operation the application (18) controls a master control unit (MCU) of the mobile station (1). Also provided is a system for making payments, comprising at least one mobile station (1) which has an associated application (18), a component for using the application (18), and a first transceiver (IR, 20) for providing local data transfer. The system also comprises at least one cash register (21) or the like, which has a second transceiver for providing data transfer (IR2). The application (18) has a capability for causing data to be transferred from the first transceiver (IR) to the second transceiver (IR2).

Abstract: A satellite communication system includes a plurality of spacecraft in geosynchronous orbit, where each spacecraft provides a plurality of beams on the surface of the earth, and a plurality of ground stations individual ones of which are located in one of the beams for transmitting uplink signals to one of the spacecraft. Each spacecraft has a plurality of receivers for receiving a plurality of the uplinked signals from ground stations, a frequency translator for translating the received uplink signals to a transmission frequency of a plurality of downlink signals, and a plurality of transmitters for transmitting the plurality of downlink signals within the same beams as the corresponding uplink signals. Each transmitter includes a combiner for combining together a plurality of frequency translated signals and a power amplifier, such as a TWTA, for amplifying the combined plurality of frequency translated signals.

Abstract: A call management system is provided to manage the use of specified wireless telephones in order to limit or manage their use for unofficial calls and to report on official as well as unofficial uses. Calls originated from or directed to a controlled wireless telephone are routed to a call management center from a wireless central office. The call management center determines whether the call is approved by consulting a database of approved telephone numbers. If the call is approved it is completed normally. If the call is not approved, the caller is prompted to provide an access code. The call is completed if the access code matches a predetermined security code. Customizable exception reports are generated to reflect unofficial usage, incorrect access attempts, and other detailed information concerning the use of the specified wireless telephones.

Abstract: A method and system for the reception, conversion and distribution of wireless communication signals received from such communication devices as PCS, Cellular, and Satellite over AC power lines commonly found within a building, office, home or other structure is disclosed. This invention specifically provides for the distribution of wireless signals in structures where otherwise signal degradation and/or blockage are common. Moreover, this invention takes advantage of the existing AC power lines to create a communication channel avoiding the necessity of rewiring the building or other structure. This invention provides important improvements to the signal coverage and reception of wireless transmitted signals within buildings and other structures and does so in an efficient and cost effective manner.

Abstract: A service of a telecommunication system which is delivered upon receiving of a communication request (REQ) of an originating user (A). The communication request (REQ) is generated at a first terminal (T1-A1) of the originating user (A) and includes an identification of a terminating user (B). The service includes the steps of retrieving and comparing a request profile of the originating user and a reachability profile of the terminating user. Following the results of the comparing the service can further include any or both of the steps of: a) according to a result of the comparing, establishing a communication between a second terminal (T2-A) of the originating user and first terminal (T2-B) of the terminating user; and b) generating and providing information of the result to a third terminal (T1-A) of the originating user.

Abstract: In a cellular telephone system of the type having the capability of making measurements useful in determining the location of a mobile station, at least one such measurement is made. The measurement is made in accordance with a cost function which minimizes the costs to the systems. A position fix of the mobile station is determined using the cost function and the measurement.

Abstract: A telecommunications system and method is disclosed for administration of location services by using black and gray location application lists within a positioning gateway. When a location application subscribes to location services, the wireless service provider assigns a unique Location Application Identifier Number (LAIN) to the location application, which is included in every positioning request. The black list is used to bar service to the location applications included in the list, while maintaining the location application's location application profile in the positioning gateway. Location applications included in the gray list are not barred from service, but instead are monitored by the wireless operator.

Abstract: A modulator (104) varies the duty cycle of a waveform to amplitude modulate information for transmission. A push-pull amplifier (106) in accordance with the invention, preferably constructed of CMOS devices, receives the waveform with a varying duty cycle in order to drive an antenna (108) such that a wireless transceiver can become excited by the oscillating waveform and receive the amplitude modulated signal and demodulate it to obtain the transmitted information. The power generated by the push-pull power amplifier (106) is simply increased or decreased by varying the voltage of the power supplied to the power amplifier or by varying the number of devices driving the antenna (108) in parallel.