Matches 401 - 450 out of 1394 < 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >
Match Document Document Title
7020483 Power control in mobile radio telephone systems when transmission is interrupted  
A method is provided for transmission power control and a radio communications system having at least one first and one second station which communicate with each other, wherein a receiving one of...
7020482 Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems  
Techniques to allocate the total transmit power to the transmission channels in a multi-channel communication system such that higher overall system spectral efficiency and/or other benefits may be...
7020445 Wireless base station system, and wireless transmission method  
A radio base station apparatus may include two diversity antennas spaced apart by a distance that allows space diversity, with each diversity antenna functioning as an adaptive array antenna. Each...
7020216 Method for adjusting a phase angle of a phase modifier of a transmitting device  
A method for adjusting a phase angle (φ) of a phase modifier ( 25 ) of a transmitting device which includes a quadrature modulator ( 3 ), a power amplifier ( 9 ), a quadrature demodulator ( 19 )...
7016710 Power optimized request response communication protocol with timer mechanism to enforce client to generate request  
In order to support connectivity requirements for today's pervasive devices, the present invention provides an asymmetric two-way request-response communication protocol in which the end user or...
7016697 Controlling multiple modems in a wireless terminal using dynamically varying modem transmit power limits  
A mobile wireless terminal (MWT) includes multiple wireless modems. The multiple modems have their respective transmit outputs combined together to produce an aggregate transmit output. The...
7016691 Mobile telecommunications system and a mobile telecommunications control method  
Regulating the unnecessary handover control count and reducing the power consumption of a radio mobile station thereby reducing the load on an entire radio telecommunications system to maintain...
7016653 Radio terminal  
A radio terminal that receives signals from a plurality of radio stations to calculate its current position has: interference canceling means for canceling each interference signal from the...
7013161 Peak power reduction using windowing and filtering  
Large signal peaks (for example, peaks 105 and 110 ) can dramatically increase the cost of a communications device by requiring high grade power amplifiers. Peak reduction can reduce the large...
7013160 Method and apparatus for performing fast power control in a mobile communication system  
A method and apparatus for controlling transmission power levels in a mobile communication system. The method provides for a closed-loop power control method. A mobile station provides information...
7010322 Apparatus and method for controlling power of a forward common power control channel in a mobile communication system  
A method for controlling power of common power control channels from a plurality of base stations in order to control transmission power of a mobile station in a mobile communication system. The...
7010320 Transmission power control method, base station, mobile station and mobile communication system  
This invention is to prevent deterioration in communication quality of closed loop transmission power control, which may occur when the change in transmission power cannot keep up with a sudden...
7010317 Apparatus and method for transmitting TFCI used for DSCH in a W-CDMA mobile communication system  
Disclosed is a method for determining transmission power of a second TFCI bit indicating transport format information of data on a downlink shared channel transmitted from a selected Node B to a UE...
7010316 Method and apparatus for multi-channel reverse link outer-loop power control  
In a disclosed embodiment, a maintain and adjust threshold module determines the desired signal to noise and interference ratio for a first channel. Next, a delta computation module produces a...
7010282 Dynamic bias for RF power amplifiers  
A subscriber unit and method for wireless communication that dynamically adjusts RF amplifier operating bias for the subscriber unit's transmitter in response to a power control signal. The...
7006844 Adaptive power control for multicast transmission  
The power level of multicast data transmissions in a wireless communications network are controlled. Power level information is provided in a transmitted channel received by a user equipment. The...
7006842 Communication system transmit power control method  
A method for adjusting an OLT for power control, which is capable of closely tracking a low tFER. The OLT is adjusted based on frame quality indicator FQI and channel quality metrics. FQI and...
7006837 Electronic apparatus  
An electronic (or computer) apparatus ( 10 ) has a current position data output unit ( 13 ) and an area data output unit ( 14 ) responsive to current position data from the current position data...
7006802 Universal transmitter  
A method and apparatus for a universal transmitter that can learn and emulate the transmission frequency and modulation pattern of a template transmitter, without prior knowledge of such...
7006798 Communication terminal apparatus, base station apparatus and radio communication method  
A retransmission request signal creation section ( 119 ) outputs an ACK signal or NACK signal to a NACK signal counting section( 120 ) based on the result of error detection by an error detection...
7006463 CDMA communication system and its transmission power control method  
An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data...
6999737 Wireless transmitter and device for mobile station  
A wireless transmitter has: a calculation means for determining an electric power value of baseband signals to be input to modulating means; a detection means for determining a transmitting...
6999729 Contact management for mobile communication devices in wireless packet switched networks  
Methods and apparatus for maintaining contact with a wireless communication network improve the timeliness in which traffic is delivered to a mobile communication device in marginal coverage areas....
6996420 Radio communication system, mobile terminal unit thereof, and azimuth determining method  
Disclosed are a mobile station unit which can obtain azimuth information with a simple construction and a radio communication system including the mobile terminal unit. According to the present...
6993352 Acknowledging missed messages broadcast on a control channel  
Methods and apparatus are presented for acknowledging missed control channel messages. In a system wherein control channel messages can be used to send the transmission parameters of signals on a...
6993063 Outer loop/weighted open loop power control  
A transmission power level for a user equipment in a wireless time division duplex communication system using code division multiple access is determined. An interference level is measured. A...
6985752 Mobile communications system, base station, mobile station, threshold setting method and storage medium having program recorded therein  
A mobile communications system can easily set the optimum threshold for use in selecting a modulation-coding mode depending on a link condition. A selection control unit compares the reception...
6985751 Combined open and closed loop power control with differential measurement  
A power control system and method for a wireless telephone employs an open loop technique for relatively low power levels and a closed loop technique at higher power levels. In the open loop...
6983167 Wireless communication system and wireless station  
A station determines the presence/absence of directional beam control in an access point, on the basis of received power measured when data transmitted from the access point are received, and the...
6983166 Power control for a channel with multiple formats in a communication system  
Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g.,...
6983165 Radio communication apparatus and transmission power control method  
Desired signal power measured at a desired signal power measuring circuit 105 is averaged over a plurality of slots by an averaging circuit 106 to reduce a power error in desired signal power...
6983140 Portable mobile unit  
A cellular phone capable of informing a user of the deterioration of a line speech quality by raising an alarm. In the cellular phone according to the present invention, the condition in which the...
6980838 Control channel to enable a low power mode in a wideband wireless communication system  
A wireless multi-carrier communication system having designated control sub-channels that enable a receiving device to operate in a low power decoding mode. A sending device may send control or...
6980824 Method and system for optimizing transmission and reception power levels in a communication system  
A method and system are disclosed herein for determining optimum power level settings for a transmitter and receiver pair of a communication system having a plurality of transmitter and receiver...
6980770 Mobile marine communications apparatus  
A mobile communications apparatus ( 84 ) for wireless communication with a fixed mount marine radio ( 82 ) is disclosed. A radio-frequency communicator ( 120 ) is selectively operable to transmit...
6978151 Updating path loss estimation for power control and link adaptation in IEEE 802.11h WLAN  
A method and apparatus for determining the transmission power level between a plurality of stations located within the coverage area of a basic service set (BSS) in a wireless local area network...
6978150 Apparatus and method for transmission power balance adjustment in a mobile cellular system  
A transmission power control system can establish synchronization by matching adjustment start timings while repeating adjustment periods even when start timings of transmission power balance...
6977967 Method and apparatus for performing fast power control in a mobile communication system  
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...
6977910 Power control with space time transmit diversity  
A circuit is designed with a measurement circuit ( 432 ). The measurement circuit is coupled to receive a first input signal ( 903 ) from a first antenna ( 128 ) of a transmitter and coupled to...
6975880 Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel  
A method and apparatus for controlling transmit power levels of a plurality of different data streams transmitted from at least one base station to a mobile station in a mobile radio communication...
6973334 Cellular telephone  
A cellular telephone includes a receiver connected to an antenna through a duplexer. The receiver converts a first communication signal into a voice signal code, and outputs a signal indicating an...
6973295 Determination of a differential offset in a radio device and radio device  
A device for determining an offset value for an offset occurring in a differential transmission signal section of a radio device utilizes, for the purpose of determining the offset value, a signal...
6973289 Radio communication device and method of controlling transmission rate  
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...
6970714 Adaptive power level setting in an ad-hoc wireless network  
Wireless devices within an ad-hoc wireless network adaptively set their transmission power levels based on locally available information. Initially, each such wireless device sets its transmission...
6970710 Radio data communication apparatus and radio data communication method  
A radio data communication apparatus and a radio data communication method are disclosed which prevent, even in a situation wherein a circuit state is bad and unstable, repetition of acquisition of...
6970679 Method of detecting a redirection or relaying of a contactless data transmission using at least two sequentially driven transmitting antennas  
A method detects relaying of a contactless data communication by a radio amplifier for intercepting and manipulating the communication to achieve an unauthorized authentication. The method involves...
6967987 Transmission power control method and mobile communication system  
A reception error rate of a received signal is detected; the detected reception error rate is compared with predetermined target reception error rate; the SIR (the ratio between the target received...
6965762 System and method for antenna diversity using joint maximal ratio combining  
A composite beamforming technique is provided wherein a first communication device has a plurality of antennas and the second communication has a plurality of antennas. When the first communication...
6965568 Multi-hop packet radio networks  
An adaptive communication system utilises opportunistic peak-mode transmissions to transmit data between originating and destination stations, via one or more intermediate stations. Each station...
6963754 Transmission power control method of wireless communication terminal and a base station therefore  
Disclosed is a transmission power control method which enables communications between a base station and a terminal station to be always performed at a high transfer rate by always assuring an...
Matches 401 - 450 out of 1394 < 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >