Abstract: Innovative new methods in connection with lighter-than-air free floating platforms, of facilitating legal transmitter operation, platform flight termination when appropriate, environmentally acceptable landing, and recovery of these devices are provided. Especially, termination of radio transmissions and flight related to regional, governmental and international border requirements, regulations and laws. The new methods comprise specific criteria, detection of the criteria and elements of operation for reducing or preventing illegal transmissions, for producing rapid descend to the ground, for environmentally acceptable landing and for facilitating recovery all with improved safety and enhanced compliance with known regulations.

Abstract: For calls involving a wireless device on a wireless wide area network, a network entity may create an electronic record for the call that includes an indication of whether the call was established with vocoder bypass. A service provider of the wireless wide area network may then use the indications in the electronic records, at least in part, as a basis for billing a user of the wireless device. The service provider may additionally use the electronic records to generate statistics about the usage of the wireless wide area network.

Abstract: Methods and apparatuses for establishing time at a first basestation, and synchronizing the first basestation with other basestations in a cellular network. The method may be performed using a mobile (cellular communication) station that includes a satellite position system receiver. One method comprises determining a location of the mobile station, determining a time indicator that represents a time-of-day at the mobile station, wherein the time indicator is determined relative to a signal available at the first basestation, transmitting at least one of the position information and location, and transmitting the time indicator from the mobile station. The time indicator and at least one of the position information and the location are used to establish a time at the first basestation such that the first basestation is synchronized to other basestations in the cellular communication system. Other methods and apparatuses are also described for synchronizing basestations in a cellular network.

Abstract: An apparatus, system, and method efficiently manage reverse link communication in a communication system having geographically distributed base stations. A base station functioning to at least one mobile station as a non-serving active base station estimates an expected coupled load due to the at least one mobile based on a previous total coupled load. The base station determines a total available capacity based on the difference between the total capacity of the base station and the estimated expected coupled load. The base station allocates reverse link resources to other mobile stations served by the base station so as not to exceed the total available capacity. Since the allocation of reverse link channels resources are controlled directly by the base station, delays due to communications with a central controller are eliminated. As a result, adverse effects of load scheduling based on obsolete reverse channel information are minimized.

Abstract: A slide type cellular phone having two separate bodies automatically or manually sliding with respect to each other includes a first main body having a motor with a shaft, an elastic member elastically supporting the motor, and a switch activating the motor, a power transmitting unit coupled to the shaft of the motor to receive a rotation power from the motor, a pinion coupled to the power transmitting unit to be rotated by the rotation power, a second main body slidably coupled to the first main body, having a rack coupled to the pinion, and sliding with respect to the first main body according to movements of the pinion and the rack, and a sliding detecting unit detecting a termination of a sliding operation of the second main body to control the motor. The pinion, the rack, and the power transmitting member to operates by a rotation of the motor to automatically or manually slide the second main body with respect to the first main body, thereby providing a more convenient cellular phone.

Abstract: A handoff system and method using an MPTY (multiparty) service in a mobile communication system. When a terminal senses that it is located at the boundary of a WCDMA during a WCDMA communication service, it transitions to a first state. In the first state, the terminal requests an MPTY service to a BS in a CDMA network. If the strength of a first current WCDMA signal is less than a predetermined first threshold, the terminal transitions to a second state. In the second state, the terminal requests an available MPTY call to be maintained. If the strength of a second current WCDMA signal is less than a predetermined second threshold, the terminal transitions to a third state. Then the terminal establishes a CDMA call using the maintained MPTY call in the third state. If the strength of a third current WCDMA signal is less than a predetermined third threshold, the terminal ends the WCDAM call.

Abstract: There is provided a neighbor cell notifying apparatus capable of implementing more efficient notification to a mobile station within a range that can be notified of and monitored, when the mobile station in communication using a plurality of cells is notified of neighbor cell information. This neighbor cell notifying apparatus includes a cell information extracting part for extracting neighbor cell information items for specifying respective neighbor cells corresponding to each of the cells; a cell rank determining part for, based on the neighbor cell information items extracted, determining ranks of neighbor cell information items that the mobile station is to be notified of, in favor of neighbor cell information items about neighbor cells common to the cells; and a cell information notifying part for notifying the mobile station of a predetermined number of neighbor cell information items among the neighbor cell information items on the basis of the ranks determined.

Abstract: A method and system is provided for determining a location for each of a plurality of units, which is selected from one of multiple sets of locations, which are each estimated based upon different initial location estimates. The selected set of locations includes the set which has the minimum error value, where the error value is based on the aggregate of the differences between the range determined from the estimated locations and the measured range. By using different sets of initial location estimates, there is a greater chance that at least one of the sets of initial location estimates will avoid any local minimums and produce a more accurate estimate of unit locations.

Abstract: A system (100) grants inbound channel capacity using frequency and time diversity by wirelessly transmitting on a first (202) of a plurality of outbound channels (202–208) a first (511) of a plurality of first inbound channel grant signals (511–514) for controlling transmission of a multiple channel mobile station (106) on a plurality of inbound channels (212–218). Thereafter, on a second (204) of the plurality of outbound channels a second (512) of the plurality of first inbound channel grant signals is wirelessly transmitted. Furthermore, the system (100) grants inbound channel capacity using time diversity by wirelessly transmitting on the first (202) of the plurality of outbound channels all of a plurality of second inbound channel grant signals (521–524) for controlling transmission of a single channel mobile station (104) on one (212) of the plurality of inbound channels are transmitted.

Abstract: A count is made of the number of mobile assisted handoff (MAHO) attempts between a service cell and a targeted cell. A count is also made of the number of times the targeted cell is considered a Best Candidate (BestCand) for handoff from the service cell. If the targeted cell is not included in the service cell's neighbor list, a potential neighbor cell (PNC), hysteresis is added to the targeted cell to prevent handoffs to the targeted cell. The MAHO and BestCand counts are determined and if the counts meet or exceed predetermined threshold values the targeted cell is added to the list. If the targeted cell is on the neighbor list, no hysteresis is added.

Abstract: One aspect of the present invention regards a method of coordinating the handoff of a mobile carrier between a first access network and a second access network, the method including handing off from a first access network that the mobile carrier is currently operating within to a second access network and building a physical access network topology based on the handing off without input from either the first access network or the second access network.

Abstract: A method for finding the position of a subscriber in a radio communications system combines transmission signals from subscribers to form a transmission sum signal, which is passed by cables from a base station to at least two antenna devices for transmission. Received signals from subscribers are received via the antenna devices and are combined to form a received sum signal, which is passed by cables to the base station. Each individual antenna device is associated with an individual area for the radio supply for the subscribers there. Cables lengths, which are used for signal transmission, for each antenna device are chosen individually such that a round trip delay time measurement which is based on the transmission signal and received signal of a sought subscriber is used to determine an antenna device via which the received signal sought subscriber is received. The position of the sought subscriber is determined via the area which is supplied by radio and is associated with the determined antenna device.

Abstract: Agile frequency converter and method, IF-RF level exchange process, and notch filtering techniques. System noise and spurious levels generated by channel frequency conversion is reduced in applications requiring broadband combining of frequency converters to form multichannel composite signal. Converter employs two-stage frequency conversion process, with gain exchange system using variable pre-mixer gain and variable post-mixer attenuation to maintain constant RF output signal power level. For those few conversion frequencies where distortion component(s) cannot be filtered without degrading desired signal, IF-RF level exchange is optimized for meeting the carrier-to-distortion (C/D) ratio specifications at slight expense of noise level for that channel only, while still meeting aggregate combined carrier-to-noise (C/N) specification requirements.

Abstract: A telecommunication network (TN) comprises a radio access network (2) defining cells in which user equipments (7) are localized and a core network (1) linked to the radio access network and adapted to establish a multimedia broadcast multicast context for the user equipments (7) located in the cells.

Abstract: The present invention is directed to forward link and reverse link diversity in a wireless telecommunications network. The present invention solves the reverse link/forward link dependence between a mobile station and a base station of a network by purposely selecting different base stations or sectors of a base station for reverse-link and forward-link transmissions. In one embodiment, reverse link traffic channel transmissions are targeted to a different base station than the base station from which the forward link traffic channel transmissions originate and respective control information of these channels are embedded or transmitted with the opposite link. Such diversity may be activated only in signal conditions that have a certain predefined value or mobile station locations that exhibit a sufficient chance of experiencing a forward or reverse link failure.

Abstract: A method and system for establishing a data connection between two devices over a mobile telecommunications network is provided. A mobile terminal can establish a data connection with a second device by establishing a GPRS connection and obtaining an IP address. The mobile terminal sends an SMS message including its IP address to the second device. The second device also establishes a GPRS connection and obtains an IP address, and then sends a return SMS message including the second device's IP address to the mobile terminal. Once the two devices have exchanged IP address information, they jointly set up a data connection to transfer data, e.g., image files.

Abstract: Method and system for the planning and/or evaluation of radio networks, especially CDMA radio networks. The service area of a radio network is divided into pixels after which for each pixel a probability is determined whether it is covered by a cell of the radio network. To account for cell breathing due to traffic changes, the planning involves the calculation of a link budget for each pixel and of a noise rise for each cell.

Abstract: The mobile station is in the sleep mode until just prior to a designated slot. Upon wakeup, the mobile station ensures a link is maintained with the network by measuring the strength of several pilots. If a neighbor pilot is stronger than the current pilot, a handoff is performed. After handoff, the Control Channel Capsule (CCC) may be demodulated by the mobile station to obtain new overhead information, such as neighbor pilots. If no handoff is performed, the reacquisition slew for the current pilot is measured and fed back to the sleep controller to determine the next wake-up time. The mobile station then returns to sleep mode.

Abstract: Methods and apparatuses for frequency synchronizing basestations in a cellular communication system. In one aspect of the invention, a method to predict a timing of transmission of a basestation in a cellular communication system includes: receiving a first time tag for a first timing marker in a first cellular signal transmitted from the basestation; receiving a second time tag of a second timing marker in a second cellular signal transmitted from the basestation; and computing a frequency related to the basestation using the first and second time tags. Each of the time tags are determined using at least one satellite positioning system signal received at a mobile station which receives the corresponding time marker.

Abstract: A method for an ATN aeronautical telecommunications network to select ground stations giving access to the ATN terrestrial network, by an aircraft in the course of its task. The method equips the on-board router with a database relating to the ATN network containing a file of ground stations graded as a function of the geographical position of the aircraft on its route prepared during the construction of the flight plan, and provides a link between the on-board router and the navigation equipment of the aircraft, allowing the on-board router to know the position of the aircraft on its route and to use this position to select, from the database, the ground stations having the aircraft in their areas of coverage, with an order of preference determined by the company operating the aircraft. This accelerates the choice of a ground station for access to the ATN terrestrial network, while leaving complete control of this choice to the operating company.