Matches 1 - 50 out of 58 1 2 >
Match Document Document Title
7292857 Mobile station, radio communication system, base station switching control method, program, and recording medium  
A mobile station for communicating with a plurality of base stations, including: a field strength detecting circuit that detects a wave strength received from the base stations and outputs a...
7257417 Method for determining a change in a communication signal and using this information to improve SPS signal reception and processing  
Methods and apparatuses for determining a position of a mobile satellite positioning system (SPS) receiver which is coupled to a communication receiver or transceiver. In one exemplary method, a...
7088966 Wireless connection controller  
A method and system for establishing connection between two wireless devices. The method and system includes establishing connection authentication between the wireless devices, and measuring and...
7082305 Method and apparatus for generating a neighbor cell list  
A user equipment (UE) communicates with at least one cell defining an active set. A velocity vector including position, speed, and direction is associated with the UE. A radio network controller...
7039436 Mobile communication terminal  
A mobile communication terminal includes a receiver ( 2 ) receiving a radio waves from a base station, a sampling unit ( 3 ) sampling a signal received by the receiver ( 2 ), a demodulator ( 5 )...
EP0988763B1 VELOCITY CALCULATION OF A RADIO TRANSMITTER  
Abstract not available for EP0988763 Abstract of corresponding document: US6310573 Method and device for calculating a velocity of a moving transmitter using Rayleigh-fading of a received radio...
EP0976275B1 METHOD FOR DETERMINING THE SPEED OF A TERMINAL, AND RECEIVER  
Abstract not available for EP0976275 Abstract of corresponding document: US6577603 The invention relates to a method for determining speed of terminal in a radio system, and to a receiver in a...
6816729 Handover method  
The invention relates to a handover method, mobile system and apparatus deciding on the handover of the mobile system triggering an accelerated handover algorithm when the signal level and/or...
6754493 Method and systems for dynamic threshold adjustment for handoffs in radio communication systems  
A method and system for performing handoffs in radiocommunication systems using adaptively variable thresholds are described. Adaptive thresholds are functions of the quality level of a best or...
6745034 Apparatus, and associated method, for adaptively selecting a handoff threshold in a radio communication system  
Apparatus, and an associated method, dynamically selects values of thresholds to be used in a determination of whether to request a handoff of communications between serving and target base...
EP1349293A2 Apparatus for controlling transmission power of a data signal  
A method and apparatus for controlling transmission power in a mobile communication system is disclosed. The method disclosed provides for a closed-loop power control method for variable rate...
6594494 Mobile communication terminal  
A reference pattern comparing means 14 detects the number of error bits, using a reference pattern data portion embedded in the received signal. An error correcting means 15 detects the number...
EP0776581B1 METHOD FOR MANAGING A TELECOMMUNICATION SYSTEM INCLUDING A SMALL CELL NETWORK AND A MOBILE PHONE NETWORK  
Abstract not available for EP0776581 Abstract of corresponding document: US5983104 PCT No. PCT/SE95/00846 Sec. 371 Date Apr. 3, 1997 Sec. 102(e) Date Apr. 3, 1997 PCT Filed Jul. 11, 1995 PCT Pub....
6577603 Method for determining speed of terminal, and receiver  
The invention relates to a method for determining speed of terminal in a radio system, and to a receiver in a radio system, the receiver comprising means for taking samples from a received signal...
6564042 Velocity-estimation-based gain tables  
A method of modifying gain tables for the reverse-link communications in a cdma2000 wireless communication network includes the steps of estimating the velocity of a mobile station for a given...
6539227 Methods and systems for controlling hard and soft handoffs in radio communications systems  
A method and system for controlling handoffs in radiocommunication systems using a softzone concept are described. Soft handoff is permitted between members of a particular softzone, but not...
6526286 Power management system for a mobile unit by reduced neighbor cell scanning  
A power management system for a mobile unit wherein the frequency of scanning a neighboring cell may be controlled. A mobile unit consumes power in standby mode by periodically scanning the base...
6490460 Forward and reverse link power control using position and mobility information  
A method and apparatus for dynamically adjusting a power control loop that attempts to maintain either the transmit power of a signal sent from a base station to a mobile station or the signal to...
6480716 Estimating subscriber terminal speed, selecting cell, and radio system  
The invention relates to a method for determining a speed of a subscriber terminal and for selecting a cell in a radio system comprising a plural number of microcells and at least one umbrella cell...
6456610 TDM/TDMA wireless telecommunication system with electronic scanning antenna  
A terrestrial wireless telecommunication system is disclosed that uses an electronic scanning antenna to rotate a beam that carries communication messages between a base station and a plurality of...
6400953 CDMA type mobile radio communication system capable of realizing an effective system operation without excess and deficiency of radio base stations simultaneously connected  
In a code division multiple access (CDMA) cellular type mobile radio communication system, in order to realize effective system operation with neither more nor less of radio base stations which are...
6385460 Power management system for a mobile unit by reduced neighbor cell scanning  
A power management system for a mobile unit wherein the frequency of scanning a neighboring cell may be controlled. A mobile unit consumes power in standby mode by periodically scanning the base...
6381212 Power sharing amplifier system for amplifying multiple input signals with shared power amplifiers  
The invention provides a power sharing amplifier system having an N by N transform matrix circuit, N amplifiers and an N by N inverse transform matrix circuit. The N by N transform matrix circuit...
6310573 Velocity calculation  
Method and device for calculating a velocity of a moving transmitter using Rayleigh-fading of a received radio signal are presented. The method includes the step of making at least two parallel...
6259919 Method for identifying a fast speed mobile station, and a base station  
A method for identifying a fast speed mobile station (MS) in a radio system, said method comprising measuring the frequency error of radio signals received from a mobile station. In order for a...
6246877 Method and system in a mobile radio system  
The invention relates to a method of performing handover in a mobile radio system. The mobile radio system performs quality measurements on signals transmitted (300) between a mobile terminal and...
6198930 Automatic cellular phone tracking  
A system for tracking the location of, and for providing cellular telephone handoff for, a mobile cellphone user as the cellphone user moves from one cellzone to another. A boundary curve B12...
6185182 Power sharing amplifier system for a cellular communications system  
The invention provides a power sharing amplifier system for a cellular communications system, having with an 8th order transform matrix circuit, eight power sharing amplifiers and an 8th order...
6141554 Method for processing hard handoff in a digital communication system  
Method for processing hard handoff to prevent unnecessary frequent hard handoffs using specific parameters after the first handoff is performed. The method includes the steps of establishing a...
6067460 Mobile station having enhanced standby mode  
When a mobile station (10) is in a DCCH camping state it monitors its assigned page frame. After making RSSI and possibly also Bit Error Rate/Word Error Rate (BER/WER) measurements the mobile...
6061549 Support of multiple modulation levels for a cellular traffic channel  
A D-AMPS+ cellular communications air interface is presented wherein a packet data control channel and packet data traffic channel is supported in addition to the conventional digital control...
6011780 Transparant non-disruptable ATM network  
A method and apparatus for the transparent, non-disruptable transfer of data, particularly multimedia data, through any packet-based network, such as an ATM network is provided. The method of the...
5995836 Method and system for variable handoff hysteresis in a radiocommunication system  
A method and system for performing handoffs in radiocommunication systems using a time variable hysteresis value are described. By varying the hysteresis value in accordance with the amount of time...
5991286 Support of multiple modulation levels for a cellular packet control channel  
A D-AMPS+ cellular communications air interface is presented wherein a packet data control channel and packet data traffic channel is supported in addition to the conventional digital control...
5983104 Mobile communications system with mobile unit speed identification features  
In telecommunication systems, for instance of the type DECT, there are mobile units which move within and between the cells of the system. The new device identifies mobile units which move with a...
5963870 Process for switching between IS-95 forward power control and fast forward power control  
The power control process switches between IS-95 forward power control and fast forward power control using either speed or hand-off status information from the mobile radiotelephone. If the...
5913168 Method of controlling handover in a multicellular radio communications network, and speed estimation methods relating thereto  
In a multicellular radio communications network, when a mobile station satisfies a criterion for automatic intercellular handover from a source cell to a target cell, the speed of movement of the...
EP0903951A2 Base station searching device  
A mobile radio terminal apparatus in a code division multiple access system comprises level crossing number counter section 201 that calculates the Doppler frequency caused by the fading, moving...
5873028 Transmission power control apparatus and method in a mobile communication system  
A transmission power control scheme for a mobile communication system for suppressing the transmission power to an absolutely necessary minimum level, and increasing the subscriber capacity by...
5825817 Radio wave measuring apparatus for digital communication system  
In one aspect of this invention, a receiver sequentially demodulates sequentially received burst signals into original digital data signals. A data extraction unit extracts base station information...
5822697 Hybrid cellular radio communication system  
A hybrid cellular mobile communication system is disclosed that contains a first layer having a plurality of radio communication micro-cells, and a second layer of radio communication cells of a...
5790517 Power sharing system for high power RF amplifiers  
A land mobile radio system (110) includes a plurality of radio channels (112), each radio channel (112) being interconnectable (115) to any one of a number, N, of combiners (114), and each combiner...
5787348 Method of measuring speed of a mobile unit and a receiver for use in a wireless communication system  
A method of measuring speed of a mobile unit for use in a wireless communication system 20. The method includes the steps of receiving a radio frequency (RF) signal from the mobile unit 202,...
5742584 Power sharing system for RF amplifiers  
A land mobile radio system (110) includes a plurality of receive antenna (120) for receiving RF signals transmitted from mobile units. Each receive antenna (120) is connected to a transform matrix...
5634206 Method and apparatus for estimating a signal fading characteristic  
A method and apparatus for measuring a characteristic of a fading signal received using a two or more branch diversity receiver is presented. This fading characteristic is generally proportional to...
EP0772916A1 METHOD AND APPARATUS FOR ESTIMATING A SIGNAL FADING CHARACTERISTIC  
Abstract not available for EP0772916 Abstract of corresponding document: US5634206 A method and apparatus for measuring a characteristic of a fading signal received using a two or more branch...
5602831 Optimizing packet size to eliminate effects of reception nulls  
Packets are transmitted in different block sizes according to the speed of motion of the receiver. The packet block size is selected to minimize the effects of burst errors that occur at the...
5574984 Method and apparatus for controlling a power level of a base station of a wireless communication system  
After setting a base station to a transmit power level (12) which provides a signal at a subscriber unit having a target quality level, a fading characteristic of a communication channel between...
5551059 Method and system for intelligent cell selection using doppler data in cellular systems  
A cellular communication system projects multiple cells throughout a user area. Subscriber units (24) encounter multiple cells as they roam through the user area or as the cells migrate past the...
5551058 Method and system for intelligent cell selection using location data in cellular systems  
A cellular communication system projects multiple cells throughout a user area. Subscriber units (24) encounter multiple cells as they roam through the user area or as the cells migrate past the...
Matches 1 - 50 out of 58 1 2 >