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7415288 Techniques for providing efficient transmit diversity and bandwidth segmentation in a wireless communication system  
Wireless communication techniques for cellular deployment of wireless communication systems with transmitters in each cell to have partially overlapped transmission patterns between two adjacent...
7411929 Method and apparatus for utilizing channel state information in a wireless communication system  
Techniques for transmitting data from a transmitter unit to a receiver unit in a multiple-input multiple-output (MIMO) communication system. In one method, at the receiver unit, a number of signals...
7406060 Coverage improvement in wireless systems with fixed infrastructure based relays  
Infrastructure relays are used to relay signals to multi-antenna receivers where the received signals are then processed using MIMO processing. The transmissions can use spatial multiplexing and/or...
7394799 Apparatus and method using smart antenna in FDD wireless communication system  
The invention relates to a method and an apparatus using smart antennas in a frequency division duplex code division multiple access mobile communication system and for solving the limitations of...
7394793 Method and apparatus for generating preambles in a broadband wireless communication system using multiple antennas  
A preamble generation method and apparatus are provided for improving transmit diversity by changing a preamble structure in a broadband wireless communication system using multiple antennas based...
7392460 Mobile communication system and signal processing method thereof  
A method of mobile communication including a transmitter having multiple transmitters and a receiver having multiple receivers. The method includes adding a cyclic redundancy check (CRC) code to a...
7391755 Signaling and control mechanisms in MIMO harq schemes for wireless communication systems  
A method for conveying signaling information of a communication system that uses MIMO antenna systems. To enable a relatively larger amount of information to be conveyed over the communication...
7386029 Reception device and reception method  
At noise component addition section 105 , a noise equivalent value equivalent in size to noise component is calculated using a constant which is dependent on a difference of spreading factors...
7385914 Apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals  
The present invention provides an apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals, where each of the signals...
7382743 Multiple-beam antenna system using hybrid frequency-reuse scheme  
Antenna system and methodology for producing multiple interleaved beams using a hybrid frequency-reuse scheme. In particular, depending on the traffic demand in specific coverage areas, some beams...
7372835 Handoff system and method of dual mode mobile for connecting mobile communication system and wireless network  
An active handoff system and method of a dual mode terminal capable of connecting to a wireless network, such as wireless local area network (LAN), and a mobile communication system are provided....
7372830 Dynamic subchannel and bit allocation in a multiuser-MIMO/OFDMA system  
A resource allocation method in a multiuser-multiple-input multiple-output/orthogonal frequency division multiple access (MIMO/OFDMA) system. In the multiuser-MIMO/OFDMA system feedback information...
7369526 Flexible transport system including support for bilateral user access  
One aspect of the present invention is a method for the wireless transmission of information from one or more antennas to one or more separate users. The method comprises processing information to...
7366140 Apparatus and method for switching transmit diversity in a wireless network  
A base station for communicating with mobile stations in a coverage area of a wireless network. The base station comprises a first transmit antenna, a second transmit antenna, and an RF transceiver...
7366139 Switched combining antenna diversity technique  
An antenna diversity method and a corresponding communication device are disclosed that may be used in wireless LAN receivers. An AGC (Automatic Gain Control) unit controls a gain when processing...
7359735 Radio communication apparatus and packet scheduling method  
A radio communication apparatus enhances cell throughput by adaptive selection of spatially multiplexed channels in consideration of interferences in a local cell and reducing load for calculation...
7359362 Control of a multi-sectored antenna system to improve channel efficiency  
A wireless device is coupled to a multi-sector antenna that includes a plurality of different sectors, any of which can be activated to transmit and receive in a desired direction specific to that...
7356004 Data transmission method for a mobile communication system  
This invention provides a mobile communication system which expanded the operation limitation of the heretofore adopted mobile communication systems and improved the spectrum efficiency greatly. A...
7352721 Beam forming apparatus and method for an array antenna system  
A joint channel and Direction of Arrival (DOA) estimation apparatus and method simplified to efficiently estimate a channel impulse response associated with a spatially selective transmission...
7349374 Uplink transmission power control in wireless communication system  
A method of controlling uplink transmission of a user equipment in a soft handover mode in a wireless communication system comprises communicating with a first network and a second network, at a...
7349373 Apparatus and method for determining soft or softer handoff in mobile communication system  
Apparatus and method for determining soft or softer handoff are described. The present invention includes the steps of comparing sectors in an active set to set values corresponding to the soft or...
7340279 Wireless communications with an adaptive antenna array  
Systems and techniques for parallel demodulation and searching using an adaptive antenna array with a processor configured to control the adaptive antenna to search for a first signal with the...
7340269 Uplink transmission power control method  
Disclosed is an uplink transmission power control method, by which a transmission power of an uplink signal is efficiently controlled while a terminal communicates with a plurality of base...
7339884 STBC MIMO-OFDM peak-to-average power ratio reduction by cross-antenna rotation and inversion  
A signal scrambling method is provided for peak-to-average power ratio (PAPR) reduction of STBC MIMO-OFDM signals in a MIMO-OFDM system having Y transmit antenna. In general terms the OFDM sequence...
7333456 Training information transmission method in a block transmission system  
A method and system for transmitting training information in a block transmission system is provided. The method includes transmitting a first information bearing unit by at least one transmit...
7333455 Multiple input multiple output (MIMO) wireless communications system  
A wireless broadband communications system that can transmit signals over communications links with multiple modes of diversity, thereby allowing signals having very low correlation to propagate...
7330450 Wireless network detection device  
A device for determining network parameters may include one or more antennae and a processor. For example, the device may include multiple antennae so that direction information for one or more...
7324482 Method and constructions for space-time codes for PSK constellations for spatial diversity in multiple-element antenna systems  
General binary design criteria for PSK-modulated space-time codes are provided. For linear binary PSK (BPSK) codes and quadrature PSK (QPSK) codes, the rank (i.e., binary projections) of the...
7324481 Radio transmitting apparatus and radio transmission method  
A radio transmitting apparatus that has a plurality of antennas and changes the number of modulated signals transmitted simultaneously according to the propagation environment and so forth. A...
7324480 Mobile communication apparatus and method including base station and mobile station having multi-antenna  
A mobile communication apparatus including a base station and at least two mobile stations, having multiple antennas, respectively is provided. In the mobile communication apparatus, the base...
7321571 In-band wireless communication network backhaul  
By using allocated spectrum from the mobile station air interface, one or more remote, child access points within a wireless communication network establish backhaul connections to a parent access...
7319685 Method for assigning channels based on spatial division multiplexing in an orthogonal frequency division multiplexing system with multiple antennas  
A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division...
7319683 Radio base station, control method therefor, and program recording medium  
In a radio base station ( 100 ) that communicates with a mobile station according to the PHS standards, a reception timing detection unit ( 55 ) measures the time when a UW signal of a signal...
7315571 Method and apparatus for a variable bandwidth multi-protocol X-DSL transceiver  
A transceiver for communicating a multi-tone modulated communication channel on a subscriber line. The transceiver includes: a digital signal processor (DSP) with a Fourier transform module and an...
7308286 Multi-dimensional joint searcher and channel estimators  
A wireless communication receiver ( 20 ) comprises an antenna structure ( 22 ) and a joint searcher and channel estimator ( 24 ). The antenna structure acquires dimensionally differentiated signals...
7307974 System and method for channel estimation in an OFDM mobile communication system  
A mobile communication system, a transmitter includes a first transmission antenna and a second transmission antenna, and the first and second transmission antennas transmit signals through at...
7289770 Compact feedback for closed loop MIMO  
Compact feedback schemes are presented for use in closed loop multiple input, multiple output systems.
7289474 Apparatus and method for communication  
An eigen value expansion section 103 calculates eigen values and eigen vectors in a correlation matrix or covariance matrix of input signals. When the ratio between a maximum eigen value and...
7286507 Method and system for dynamically routing between a radio access network and distributed antenna system remote antenna units  
An improved mechanism for routing communication traffic between a radio access network and distributed antenna system (DAS) remote antenna units. In accordance with an exemplary embodiment of the...
7283834 Multi-radio unification protocol  
An invention is disclosed whereby a wireless network node, equipped with two or more radio transceivers statically tuned to non-interfering frequency channels, can make decisions regarding which...
7283499 Simplified practical rank and mechanism, and associated method, to adapt MIMO modulation in a multi-carrier system with feedback  
A method of adapting transmission parameters in a multicarrier communication system having multiple transmit antennas and/or multiple receive antennas, whereby a statistical parameter of a wideband...
7274935 Method and base station controller for handover of simultaneous voice and data sessions  
A method and base station controller (BSC) in a GPRS/EDGE cellular radio telecommunication system for controlling a handover of a mobile station (MS) conducting both a circuit-switched call and a...
7274678 Method and system for transmitting data, with transmission antenna diversity  
The present invention provides a data transfer method for use in a CDMA system operating in the TDD mode. A data signal is transmitted in the form of a data stream of data bursts of different users...
7263359 Handoff mechanism for CDMA wireless network using dynamically scalable traffic channels  
A handoff mechanism for a mobile station and wireless network preferably operating in a Z×EV-DV mode, using scalable traffic channels where Z is a multiple of a 1×EV-DV channel, including a...
7263083 Radio communication device and arrival direction estimation method  
A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without...
7257408 Radio communication system and transmission mode selecting method  
A radio communication system for quickly selecting an optimum transmission mode in accordance with the quality and situation of a propagation path is provided. The system comprises first and second...
7254122 Apparatus and method for generating pilot beacon signal in base stations of CDMA system  
An apparatus for generating pilot beacon signals for handoff between base stations having a different frequency assignment FA in a code division multiple access CDMA radio communication system...
7248647 Radio telecommunications system operative by interactive determination of soft estimates, and a corresponding method  
A system to communicate digital data symbols with higher than QPSK modulation comprises a transmitter and receiver. The transmitter comprises, a modulator and circuitry to split and encode the data...
7245679 Receiving apparatus and transceiver  
A receiver/transceiver includes N pieces of receiving antennas, a propagation path characterization estimator, a weight generator for interference canceller, an array processing interference...
7245598 Feedback of channel quality information  
Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station to...
Matches 1 - 50 out of 254 1 2 3 4 5 6 >