Matches 451 - 500 out of 1409 < 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >
Match Document Document Title
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...
6963753 Transmission power control method and transmission power control apparatus in mobile communication system  
This invention relates to a transmission power control method and transmission power control apparatus in a mobile communication system. The reception quality of a signal ( 31, 32 a , 32 b , 41 ,...
6963752 Method and apparatus for setting transmit power control command energy  
The energy at which a transmit power control is transmitted is set based on how important it is that the transmit power control command is received. As an indication of how important it is that the...
6963742 Periodic calibration on a communications channel  
Calibration signals can be sent on a traffic channel without interrupting a connection between two radios. In one embodiment, the present invention includes receiving, at a second radio, a first...
6961582 Transmission power control method and system for CDMA communication system  
A transmission power control method for a CDMA communication system which performs communication between a basestation and a plurality of mobile stations; comprising the steps of: transmitting...
6961542 Method of estimating a downlink channel  
A method of estimating a downlink channel between a base station and a mobile terminal in a mobile telecommunication system. In the method the base station estimates the uplink channel between the...
6959199 Multicast signal transmission power control method and base station using the same  
In a transmission power control method of the present invention, a value of a received signal quality parameter of a received multicast signal is measured. A parameter signal, indicating the...
6959181 Transmitter device having means for automatically transmitting data remaining therein upon its re-activation  
Data formulated according to a user's request signal is transmitted from a transmitter device to a receiver device under a wireless or a wired system. The transmitter device includes a transmission...
6957079 Base station transmission power control method and apparatus  
In a base station transmission power control method, the first expected value of the first block error rate representing predetermined reception quality is set in a potable terminal apparatus. The...
6956889 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...
6956840 Power control protocol for highly variable data rate reverse link of a wireless communication system  
A technique for implementing closed loop power control in a Code Division Multiple Access (CDMA) type wireless system which dynamically assigns coded channels on a demand basis. The technique...
6954622 Cooperative transmission power control method and system for CDMA communication systems  
A method and system for cooperative transmission power control in a communication system is provided. The method, operating within a system having a base station and at least on mobile station,...
6952591 Uplink power control algorithm  
In a system having a base station transmitter for transmitting data blocks to one or more mobile stations over a radio link, there is a method for determining an uplink transmit power level at...
6950671 Cellular system, base station, mobile station and communication control method therefor  
Growth of interference wave power resulting from the growth of transmission power of the DPCH is prevented to increase line capacity while increasing reliability of control information. When a...
6950632 Transmitting and receiving device and method for continuous outer-loop power control while in DTX mode in a CDMA mobile communication system  
A device and method for continuous outer-loop power control on a physical channel which transmits only power control bits and no data while in discontinuous transmission (DTX) mode in a CDMA mobile...
6950629 Self-structuring antenna system with memory  
A self-structuring antenna (SSA) system employs a memory device to store switch states for antenna configurations that are determined to produce acceptable antenna characteristics. Each antenna...
6950406 Method and apparatus for controlling transmission power in a potentially transmission gated or capped communication system  
A power control system for controlling the transmission power in a system wherein the transmission power may be gated or capped. The receiver employs a combination of closed loop and outer loop...
6947483 Method, apparatus, and system for managing data compression in a wireless network  
According to one aspect of the present invention, a method is provided in which an access point and a mobile unit associated with the access point may optionally transmit compressed data to each...
6944470 Method and system for closed loop power control in wireless systems  
A system for closed loop power control in a mobile communication system comprises error determination process for determining an error between a target SIR and a received SIR ( 12, 14 ) and a power...
6944469 Apparatus and method for controlling transmission power in a mobile communication system  
An apparatus and method for maximizing the efficiency of a power amplifier by reducing the PAPR of a BS in a mobile communication system. A power controller between I and Q channel pulse shaping...
6944468 Transmit power control method and transmit power control system suitable to mobile communications  
A transmit power control method and system used in radio communications between a transmitting station and a receiving station is provided. The method and system employ a so-called double...
6944456 Message access for radio telecommunications system  
In a UMTS system, the AICH is arranged to send, in addition to signals acknowledging that a preamble ( 164 ) from a mobile ( 12 ) is at an acceptable strength, further signals ( 171, 176 )...
6941153 Radio communication apparatus having more channel capacity and less feedback information, and method therefor  
A radio communication apparatus having maximized channel capacity, and a method thereof, preferably includes a transmitter having a plurality of transmitting antennae, wherein each transmitting...
6941112 Gain control amplification circuit and terminal equipment having the same  
A gain control amplification circuit of this invention has a gain control amplification section which has at least two stages and is arranged in the transmission circuit of a terminal equipment for...
6940925 Receiver  
A receiver detects a highly precise approximate value of the power of a reception signal with a high speed. A first comparator outputs a larger of a component I and component Q of a reception...
6937864 Transmission apparatus and method for multimedia service in mobile communication system  
A scheduling method for providing multimedia service and packet data service efficiently. The scheduling is a Round-Robin scheduling in an MQC (Multiple Quality Control) protocol structure. A...
6937847 Integrated RF signal level detector usable for automatic power level control  
A radio frequency signal level is determined by generating an AC reference voltage from a DC reference voltage and determining an envelope of the AC reference voltage in an envelope detector having...
6934556 Transmission power correcting method, mobile communications system and mobile station  
A mobile station in a mobile communications system directs a base station to raise a transmission power using identification data, when a reception quality measured by the mobile station is lower...
6934555 Software analysis tool for CDMA system  
A wireless network planning tool simulates wireless network operation, including subscriber admission processing based resource reservation procedures. Simulated subscribers are associated with an...
6934516 Radio network system  
Occurrence of significant difference of transmission rate between communication zones can be prevented to maintain the transmission rate of overall network uniform. The radio network system...
6934264 Method and apparatus for acknowledging a reception of a data packet in a CDMA communication system  
In a communication system ( 100 ), a method and an accompanying apparatus provide for acknowledging reception of a packet of data. A receiver ( 400 ) at a serving base station ( 101 ) receives a...
6931257 Fast forward power control during soft handoff  
A wireless communication network includes base stations that operate with variable transmit power adjustments during soft handoff of a mobile station. Base stations adjust current transmit powers...
6931256 Apparatus, and associated method, for selectably permitting communication of burst data in a radio communication system  
Apparatus, and an associated method, for selectably permitting data to be scheduled and transmitted to effectuate a data service, such as a WAP-based service. Power control commands generated...
6931077 Data transmitting apparatus and data transmitting method  
A parity bit generating section 110 generates parity bits of FEC for error correction from transmission data. A transmission power deciding section 111 decides transmission power at the time of...
6928296 Base station apparatus and radio communication method  
A direction of arrival estimation section 106 estimates the direction of arrival of a signal, and a DSCH-using terminal determination section 108 determines a communication terminal that is to...
6928268 Method for allocating a transmission capacity to connections in a radio communication system  
According to the invention, a connection between a base transceiver station and a subscriber station is allocated a transmission rate for signal transmission from the base transceiver station to...
Matches 451 - 500 out of 1409 < 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >