Abstract: An apparatus and method for disabling wireless communication devices establishes a disabling zone. Inside the disabling zone, one or more capabilities of the wireless communication devices are disabled. The wireless communication devices may include cellular phones, beepers, pagers, portable computers, electronic personal attendants, and/or similar wireless devices. In a first embodiment, the zone is formed in conjunction with a power monitoring unit proximate the zone. In a second embodiment, the zone is formed in conjunction with a position monitoring system determining the geographical position of the wireless communication devices. In both the first and second embodiments, the zone may be either geographically fixed or moveable.

Abstract: An apparatus and method for suppressing interference between a first signal transmitted from an antenna of a first communication system and a second signal received by a second communication system in proximity to the first communication system, including: a reflecting assembly equipped to the transmit antenna of the first communication system and a position adjusting assembly for varying the slope of the reflecting assembly, moving the reflecting assembly right and left, and changing the height of the reflecting assembly. The reflecting assembly includes a plurality of lattices, with a gap between lattices having a width of the wavelength of the first signal divided by a natural number, and further includes two reflecting panes made from aluminum that are symmetric about the adjusting assembly and each have a width equal to the length of the transmit antenna.

Abstract: A handoff trial method by a mobile station that compares a pilot power strength of a base station providing communication service to the mobile station with a pilot power strength of a neighboring base station and attempts to handoff based on the comparing results. As a result of comparing, if the difference is larger than a pilot threshold to try handoff, the mobile station transmits a signal measurement message to the service base station for handoff to the neighboring base station. Also, if the mobile station communicated with a plurality of base stations tries to cut calls with the base stations, the mobile station measures pilot power strengths of the service base stations compares therebetween. As a result of the comparing, if the difference is smaller than a pilot threshold to cut call, the mobile station tries to cut call with the associated base station.

Abstract: A method is provided for interfacing telecommunication devices. A base unit is connected to a landline for wireless communication. The base unit has a power supply operating at a power supply frequency. A mobile unit is provided for wireless communication with the base unit. The base unit is interfaced to the mobile unit using an interface protocol that has a plurality of frames. Each frame is for transmitting signals from the mobile unit to the base unit and from the base unit to the mobile unit. The frames have a specified frame length. An interference frequency is detected at either the base unit or the mobile unit. The interference frequency is compared with the power supply frequency. The frames are synchronized with the power supply and the specified frame length is adjusted based on the power supply frequency when the interference frequency and the power supply frequency are substantially the same.

Abstract: A computer implemented process compares signals communicated between a known position and a plurality of base stations in a cellular telephone system to determine the level of interference with a signal on a channel expected to serve the known position, and determines a value indicating a probability of interference with a signal on a channel expected to serve the known position.

Abstract: A method is provided for wireless communication. The method includes communicating from a first unit to a second unit a plurality of transition signals. Each of the transition signals has a sequential value. The method further includes transitioning the first unit and the second unit from a first state to a second state simultaneously based on the sequential values of the transition signals.

Abstract: Method and system integrating wireless/wireline and circuit/packet networks (to bypass GSM Memorandum of Understandings) for cellular/PCS services so that GSM subscribers roaming into CDMA networks can be provided with basic wireless call delivery services as long as the roamers can pay the bill with their valid credit card. This is achieved by integrating wireless and wireline networks as well as circuit and packet networks, using IP networks and protocols as an alternative to the existing telephony-based approach.

Abstract: An unacknowledged, reliable short message service cell broadcast message reception protocol method to enable short message service cell broadcast messages to be constructed from the fragments of the multiple repetitions of the cell broadcast service messages which are repeated on the cell broadcast channel. When a new message block, corresponding to a recognized type of cell broadcast service message, is geographically coherent with existing partially received data or contains message components previously received, and is temporally coherent with previously received message blocks, the new message block is inserted within a received message structure. If the received message structure is complete and correctly received, the complete message is assembled and sent to an upper software layer.

Abstract: At least one communication station is provided with a number of antennas having directivities, a communication station to which a radio signal is transmitted for the next communication is judged by the communication station provided with the number of antennas, an optimal antenna communicating with the communication station is judged based on a receiving state when a signal from the judged communication station was received in the past; and wireless communication is performed by using the judged antenna, so that when a network system is wirelessly composed of several stations, a quality of communication can be optimized.

Abstract: An apparatus and method reduce out-of-band frequency components of an amplified, multichannel RF signal able to have at least two frequency bandwidth limited signal channels, each channel having a respective carrier frequency which is not known in advance. The channels can, for example, be dedicated to CDMA signals. Each channel of the amplified RF signal has both in-band frequency components and out-of-band frequency components. The apparatus and method feature a network for amplifying an input signal for producing the amplified RF signal, the network having adjustable electrical characteristics, and a control system connected to the network for locating a frequency within the bandwidth of one of the channels of the amplified RF signal and for detecting energy in the out-of-band frequency components for the one located channel for producing control signals relating to the energy in that one channel.

Abstract: An improved method of updating parameters stored in memory of mobile telecommunications stations. An object model represents all the parameters that can be modified in an IS-683A mobile station. The details of the physical location of each parameter are defined in this mobile object model. Advantageously, when any parameter is changed or added, it is necessary to provide the computer system, which generates messages to be transmitted to the mobile station, only the identification and value of the parameter to be added or changed. The computer system then generates a message sequence that defines the memory location in the mobile station to be changed, and the new value of the data for that memory location. Advantageously, this arrangement sharply reduces the total number of airwave messages transmitted to the mobile station in order to change or add a parameter.

Abstract: In a wireless communication system, the constellation mapping scheme employed may be changed on a per-time-slot basis, i.e., from time slot to time slot, so that the constellation used to encode the symbols of each time slot may be different for each time slot within a single frame and may be different for a particular time slot in different consecutive frames. In other words, several constellation mapping schemes are available, with each providing the ability to transmit a different number of bits per symbol, and the particular constellation mapping scheme employed for any time slot need be selected for that time slot only. The ability to use any particular constellation mapping scheme is dependent on the current channel quality. The particular constellation mapping used for the user data of the time slot may be indicated in the preamble of the time slot.

Abstract: When carrying out CDMA/TDD-based data communications between a base station apparatus and mobile station apparatus, the base station apparatus and mobile station apparatus carry out VOX control turning ON/OFF transmission operation according to the presence/absence of transmission data and if transmission on the base station transmitting side is OFF the mobile station receiving side receives channels being sent all the time from the base station apparatus, performing open-loop transmission power control, and if transmission on the mobile station transmitting side is OFF the mobile station apparatus transmits dummy slots with small transmission power while the base station receiving side receives the dummy slots, performing transmission space diversity.

Abstract: A method, executed on a simulation system (20), characterizes propagation of a radiofrequency signal (56) in a three-dimensional environment (52). The method includes forming a database (42) of propagation paths (54) of the radiofrequency signal (56) transmitted from a transmitter (58) at a fixed location (66) in the three-dimensional environment (52). The propagation paths (54) are represented by a plurality of line segments (120, 122) in the database (42). Local line segments (188) are selected from the plurality of line segments (120, 122) to establish a subset (47) of the propagation paths (54). The subset (47) includes those propagation paths (54) each having one of the local line segments (188) proximate a location (182) of a receiver (72) in the environment (52). Distinct multipath components (246) representing distinct wavefronts of the radiofrequency signal (56) are subsequently identified from the subset (47) of the propagation paths (54).

Abstract: A method that initiates call blocking responsive to a call-quality measurement of the forward link. The call-quality measurement is a measurement of how well a mobile terminal is able to receive the forward link. One call-quality measurement is a pilot fraction of the forward link, which is a ratio of the pilot's power level to the power level of a set of forward-link signals of a base station. Call blocking is initiated when an average pilot fraction is below a pilot-fraction blocking threshold. The pilot's power level is obtained for a time period, and the signal set's power level is obtained for the same time period. The pilot fraction is determined for the time period, and then used to determine the average pilot fraction for the time period. The average pilot fraction for the current time period is based on a pilot fraction for the current time period, and an average pilot fraction for a previous time period.

Abstract: The invention relates to a method for inputting information into a mobile radio telephone (1) via its input data channel by appropriately moving a motion detector (10) which belongs to the radio telephone (1) and senses this movement. In this arrangement, the mobile radio telephone (1) can be constructed to be pen-shaped and can contain the motion detector (10) in its pen point.

Abstract: This invention relates to a cellular radio system including a mobile telephone exchange, base stations and mobile stations, the geographical area covered by the cellular radio system being divided into location areas and the mobile stations being arranged to send location update messages to the base stations. In order that the number of mobile stations located in the area may be ascertained more accurately than before, the system includes storing means for monitoring location update messages and for storing data contained in the location update messages in a memory means, and means for transmitting the data stored in the memory means further to the operator of the system, for an estimation of the need of capacity for the different parts of the system on the basis of the stored data.

Abstract: A method and system for managing communication resources between nodes in a network, and more particularly to a dynamic distributed multi-channel time division multiple access (TDMA) slot assignment method is presented. The method and apparatus include a set of higher level heuristics that enable the wireless channel access scheme to address predetermined characteristics of the wireless channel access system. These predetermined heuristics include using bootstrap slots, adaptive broadcast cycles, channelized neighborhoods, standby slots, speculation slots, neighbor segregation, hard circuits, and soft circuits.

Abstract: A path connection control system in a CDMA mobile communication system can establish minimum but sufficient paths without causing degradation of communication quality due to delay of hand off control even during high speed travel. The path connection control system in a CDMA mobile communication system determines a radio base station to establish a path for communication with a mobile terminal by a base station control unit. The base station control unit includes means for repeatedly inputting position information of said mobile terminal, means for deriving a current position, a traveling speed and a traveling direction of said mobile terminal on the basis of repeatedly input position information of said mobile terminal, a necessary path number map of predetermining necessary path number on the basis of a contour map.

Abstract: A power consumption reduction method for a mobile radio station in a digital mobile radio system is proposed. During a dedicated mode of the mobile radio station in which the mobile radio station should perform power measurements on BCCH carriers of neighboring cells, as many as possible measurements are squeezed in a single frame, within the stabilizing capabilities of a frequency synthesizer comprised in the mobile radio station. Next succeeding frames are freed of power measurements. In the time intervals freed from power measurements, the mobile radio station adopts a power down mode so that considerable power savings are achieved.