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Patent Searching and Data


Matches 1 - 50 out of 635

Document Document Title
WO/2009/039027A1
Control of signal compression is coordinated by selectively modifying control parameters affecting the bit rate, sample rate, dynamic range and compression operations. Selected control parameters are modified according to a control funct...  
WO/2009/016741A1
MIMO communication technology to improve estimation accuracy (MIMO decoding performance) of a transmission signal in MIMO communication. A MIMO decoding method generates a triangular matrix (R) which minimizes a scalar sum of a non-diago...  
WO/2009/012649A1
A method for transmitting multimedia broadcast multicast services is disclosed, including following steps: a Time Division Duplex system divides code channels in a time slot used to bear multimedia broadcast multicast services; the multi...  
WO/2009/015093A1
CAPACITY MAXIMIZATION FOR A UNICAST SPOT BEAM SATELLITE SYSTEM ABSTRACT Methods, systems, and apparatuses are presented for improved satellite communications. The satellite system may comprises at least one gateway, a satellite in orbit ...  
WO/2009/001528A1
A signal arrangement of an SP signal transmitted from a first transmission antenna (11) is made identical to a signal arrangement of an SP signal transmitted from a second transmission antenna (12). The SP signal transmitted from the sec...  
WO/2008/156067A1
A base station device is used in a mobile communication system of the MIMO method which performs precoding. The base station device includes: reception means which receives from a user device, a precoding matrix indicator (PMI) indicatin...  
WO/2008/156098A1
[PROBLEMS] To provide a technique to assure sufficient types of step size used for reducing interference of other cell regardless of the number of physical resource blocks which are distributed so as to reduce interference of other cell....  
WO/2008/156081A1
A transmission device includes: a plurality of transmission antennas; conversion means which prepares a plurality of signal sequences in accordance with a predetermined frequency bandwidth from at least one transmission stream associated...  
WO/2008/152959A1
A radio communication method used in a radio communication device (100) which performs a radio communication with a plurality of terminals by the adaptive modulation method by using the space division multiple access method includes: a d...  
WO/2008/153081A1
In the reception quality information transmitted from a mobile station device to a base station device, a request such as the transmitted information amount and the transmission frequency differs for each of the services and unnecessary ...  
WO/2008/153218A1
A method for using a numerical method to design a sequence for code modulating data is described. An input multiple input multiple output signal is determined. A nearest tight frame to one or more given structured vectors is obtained. On...  
WO/2008/149533A1
Provided is a radio communication mobile station device which can accurately judge a CDD mode of an interference signal from other cell when using a CDD. In this device, a mode judging unit (110) specifies some data signals among data si...  
WO/2008/146515A1
A communication apparatus having a plurality of antennas includes a prestage processing section (1) for performing processing according to a designation from an upper layer for every zone created by time sharing a transmission frame and ...  
WO/2008/136469A1
A base station device is used in a mobile communication system in which user devices having different numbers of antennas may be used. The base station device includes: means for mapping a reference signal, a primary report signal, a syn...  
WO/2008/123028A1
A base station device includes: scheduling means for deciding a resource to be allocated for at least one user who requests for downstream communication; means for deciding a PV to be applied for a plurality of antennas in accordance wit...  
WO2008024545B1
A plurality of wireless addresses to be transmitted using a shared message and at least one item of informational content are provided (101 and 102). At least some of the plurality of wireless address are then arranged (103) into an orde...  
WO/2008/114743A1
A base station apparatus is used in a mobile communication system in which user apparatuses having different numbers of reception antennas may coexist. The base station apparatus comprises a means that prepares a plurality of reference s...  
WO/2008/111686A1
A method for using a numerical method to design reference signals for multiple input multiple output (MIMO) systems is described. An input multiple input multiple output signal is determined. A nearest tight frame to one or more given st...  
WO/2008/093619A1
It is possible significantly improve the entire system throughput upon retransmission in multi-user MIMO system. When a user terminal UE1 (200a) has successfully demodulated an interference signal destined to other user terminal (UE2) (2...  
WO/2008/088054A1
when the SC-FDMA method is used in combination with the multi-antenna transmission technique, a radio transmission method effectively improves the frequency use efficiency by performing appropriate frequency allocation to a plurality of ...  
WO/2008/084810A1
Provided is a radio communication base station device which can reduce the number of judgment times for a control signal in a mobile station, thereby suppressing power consumption by the mobile station. The radio communication base stati...  
WO/2008/069097A1
Provided is a radio communication method for performing radio communications with a plurality of radio stations by using a space-division multiplex connection system. The radio communication method comprises a moving speed grasping step,...  
WO/2008/056425A1
Terminal device performance information related to a function of a wireless terminal device in which at least either a first frequency band width used for the up line or a second frequency band width used for the down line is variable is...  
WO/2008/050745A1
Disclosed are a radio communication device and a radio communication method capable of suppressing fluctuations of interference given to an adjacent cell while maintaining a beam gain to a UE of a local cell even when a transmission beam...  
WO/2008/041752A1
A radio communication device receives a signal by a channel allocated by other radio communication device among N channels. The radio communication device includes: a storage unit containing information expressing at least the latest M-K...  
WO/2008/041309A1
In a transmitter (2) of a communication system (1) where wireless communication is performed between the transmitter (2) and a receiver (3), an information bit generating part generates information bits from data to be transmitted. A sub...  
WO/2008/038652A1
When transmitting a downlink burst from a base station (1) to a mobile station (2) by using a communication frame structure in which a MAP region used for allocating a MAP and a data region used for allocating data, the base station (1) ...  
WO/2008/029632A1
A communication device includes: a reception unit for receiving a plurality of packet signals containing a signal known to the local device indicating known information and a signal unknown to the local device indicating unknown informat...  
WO/2008/030471A3
RFID readers (110), systems (100), and methods are provided for overcoming the effects of RF interference (128). While a system (100) is communicating in a channel, RF interference (128) is monitored. If it is low, then hopping to anothe...  
WO/2008/024545A3
A plurality of wireless addresses to be transmitted using a shared message and at least one item of informational content are provided (101 and 102). At least some of the plurality of wireless address are then arranged (103) into an orde...  
WO/2008/018462A1
Provided is a mobile station capable of increasing the use efficiency of a transmission resource. The mobile station (100) includes: a line quality measuring unit (105) which measures SINR of a pilot symbol; a CQI generation unit (106) w...  
WO/2008/003022A3
Various embodiments of calibration systems and techniques for distributed beamforming are described. In one embodiment, an apparatus may comprise a first transmitter node to cooperate with a second transmitter node for cooperatively comm...  
WO/2008/003022A2
Various embodiments of calibration systems and techniques for distributed beamforming are described. In one embodiment, an apparatus may comprise a first transmitter node to cooperate with a second transmitter node for cooperatively comm...  
WO/2007/139064A1
A base station device (10) for carrying out wireless communication with a mobile station device includes a frequency channel allocating unit (12) for allocating a plurality of different frequency channels to mobile station devices, a com...  
WO/2007/133880A3
A multi-hop wireless network includes an originator node, a proxy node, and at least one other node. The originator node generates a data packet and transmits the data packet to the proxy node. The proxy node receives and forwards to the...  
WO/2007/119831A1
A transmitter includes a transmission unit compatible with a plurality of antennas. The transmission unit includes: a cyclic delay unit for cyclically delaying all the sub-carriers; and an allocation unit. The allocation unit selects a s...  
WO/2007/109349A3
Communication systems and methods are described that enable mobile devices to route telephone calls via an enterprise telephone system. The communication system is configured to receive via a data channel a request from the mobile device...  
WO/2007/105685A1
[PROBLEMS] A communication device is provided to optimize an amount of information necessary for adoptive modulation control. [MEANS FOR SOLVING THE PROBLEMS] A communication device allocates terminal identifiers to destination terminal ...  
WO/2007/102546A1
A group scheduling method is provided for dynamically grouping all users in a multiple-antenna-multiple-user wireless communication system based on average transmission capability which each user has shown. Since, at a certain scheduled ...  
WO/2007/099675A1
A transmitter (101) extracts a CQI value indicating a reception quality which has been measured and transmitted by receivers (102-1 to 102-β) as the reception state of antennas (121-1 to 121-φ) of the receivers (102-1 to 102-β), from ...  
WO/2007/091317A1
A wireless system wherein a transmitting station having a plurality of antennas performs a scheduling operation and a transmission to a plurality of receiving stations. At the transmitting station, information of reception qualities esti...  
WO/2007/091605A1
A mobile station includes a control unit for controlling modification of at least one of the following parameters for a transmission packet from a parameter of the transmission packet: a data modulation type, a channel encoding rate, a p...  
WO/2007/083699A1
Disclosed are a radio transmission device and a radio transmission method capable of reducing a reception error of a user at other cell and improving transmission efficiency at the other cell when frequency scheduling is combined with be...  
WO/2007/049712A1
A radio base station, which assigns one or more communication channels for wireless communication with respective terminals, comprises a communication status grasping means that acquires the communication statuses of the communication ch...  
WO/2007/043459A1
There is provided a MIMO radio communication system capable of mitigating lowering of the transmission rate in a cell terminal far from a base station and compensating a high transmission rate for a mobile station not depending on the di...  
WO/2007/023923A1
Provided is a MIMO-OFDM transmission device which makes possible highly accurate frequency offset estimation, highly accurate transmission channel variation estimation and highly accurate synchronization/signal detection. A pilot symbol ...  
WO/2007/023524A1
A base station apparatus that transmits frames in accordance with a communication format, and a mobile station apparatus that uses the frames to determine the communication format of the base station apparatus, and then performs an adapt...  
WO/2007/004461A1
It is desirable to decide a data rate in accordance with a condition. A control unit (30) transmits a rate request signal to a radio device to be communicated in accordance with a variable data rate to provide information on the data rat...  
WO/2007/003034A1
A system and method of improvement of coverage in wireless systems with fixed infrastructure based relays wherein the relays are used to relay signals to multi-antenna receivers where the received signals are then processed using MIMO pr...  
WO/2007/001052A1
It is possible to estimate a fading speed of a mobile station and judge whether spatial division multi-connection is appropriate without using a response vector of the mobile station. A radio communication device includes: fading speed e...  

Matches 1 - 50 out of 635