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US20140079155 |
SYSTEM AND METHOD FOR SUPPORTING MULTIPLE REVERSE LINK DATA STREAMS
A method for wireless communication includes determining a number of uplink data streams to transmit from a mobile device and determining a selection of antennas from a plurality of antennas for... |
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US20110194504 |
METHOD AND APPARATUS FOR SUPPORTING SINGLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (SU-MIMO) AND MULTI-USER MIMO (MU-MIMO)
Techniques for supporting data transmission with single-user multiple-input multiple-output (SU-MIMO) and multi-user MIMO (MU-MIMO) are described. A base station may transmit multiple data streams... |
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US20070243831 |
Wireless communication system
A transmitting apparatus forms a plurality of transmission beams by using a plurality of antennas. Transmission beams, the correlation of which is low and the reception quality of which is high,... |
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US20060039489 |
Method and apparatus for providing closed-loop transmit precoding
A method for providing closed-loop transmit precoding between a transmitter and a receiver, includes defining a codebook that includes a set of unitary rotation matrices. The receiver determines... |
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US20090074094 |
BEACON SYMBOLS WITH MULTIPLE ACTIVE SUBCARRIERS FOR WIRELESS COMMUNICATION
Techniques for transmitting information using beacon symbols in a wireless communication system are described. In one design, a transmitter may map information to multiple subcarriers among a... |
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US20060093066 |
Apparatus and method for space-time-frequency block coding
A transmitter for maximizing coding gain by transmitting an input symbol sequence through a plurality of transmit antennas method according to feedback CQIs from a receiver in a 3 Tx-rate 2... |
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US20060109932 |
OFDM pre-equalizing
For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′)... |
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US20050265475 |
Spatial division multiplexing for MIMO devices
A communications system, comprising a transmitter and a receiver, are operable to communicate information using a spatial multiplexing method. The transmitter is operable to separate data to be... |
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US20090110114 |
Open-Loop MIMO Scheme and Signaling Support for Wireless Networks
Transmission with multiple antennas in a wireless network is performed by selecting between adaptive precoding and fixed precoding based on a selection criterion. Transmission using spatial... |
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US20080107204 |
SYSTEMS AND METHODS FOR A MULTICARRIER MODULATION SYSTEM WITH A VARIABLE MARGIN
A multicarrier modem has a plurality of carriers over which data is transmitted. By assigning, for example, one or more different margins to the individual carriers the data rate and impairment... |
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US20060093058 |
Multiple list link adaptation
The present invention relates to link adaptation in wireless communication, and in particular though not exclusively to wireless local area networks (WLAN). The present invention provides a link... |
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US20060009168 |
Method for controlling transmissions using both diversity and nondiversity transmission schemes
A wireless communications system is provided in which transmissions may be made in either a diversity mode or a non-diversity mode on a slot by slot basis. When transmitting in the diversity mode,... |
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US20060109931 |
Mobile communication receiver and transmitter
A receiver for mobile communication includes a wireless scheme parameter storing unit (23) configured to store a plurality of characteristics of multiple wireless schemes, a wireless scheme... |
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US20050213682 |
Apparatus and method for transmitting and receiving data in a mobile communication system using an array antenna
An apparatus and a method for transmitting and receiving data in a mobile communication system including an array antenna. The method includes the steps of transmitting pilot channels through a... |
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US20090022242 |
SYSTEMS AND METHODS FOR INCREASED DATA RATE MODES USING MULTIPLE ENCODERS/DECODERS
Systems and methods for providing for increased data rate modes using multiple encoders and decoders, comprising a transmitter comprising multiple encoders, wherein at least one of the encoders... |
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US20070189416 |
Apparatus and method for Orthogonal Spatial Multiplexing in a closed-loop MIMO-OFDM system
An Orthogonal Spatial Multiplexing (OSM) apparatus and method in a closed-loop Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system are provided. In the OSM... |
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US20050265477 |
Wireless transmission method and wireless transmitter having a plurality of antennas
In a wireless transmission method and wireless transmitter using a plurality of antennas at least in signal transmission, a process requiring a high immediateness is enabled to implement at the... |
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US20070183533 |
MIMO system with spatial diversity
A method of transmitting a wireless signal (FIGS. 2 and 3A) is disclosed. A data stream (DATA) is received at a first transmitter (210). The data stream is also received by a second transmitter... |
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US20060140303 |
Wireless communication method and apparatus
In transmitting a wireless packet signal for channel response estimation, after AGC preambles and channel estimation preambles are transmitted by using a plurality of antennas, at least one data... |
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US20060056540 |
Dynamic pilot subcarrier and data subcarrier indexing structure for wireless MIMO communication systems
The present invention provides a subcarrier index coordinator for use with a multiple-input, multiple-output (MIMO) transmitter having N transmit antennas, N being at least two, wherein each... |
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US20100246717 |
INTERLEAVING IN A WIRELESS COMMUNICATION SYSTEM
The method and apparatus in accordance with the present invention receives bits, writes the bits row-by-row in a matrix, reads the bits column-by-column from the matrix, groups and rotates the... |
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US20050220215 |
Radio transmitting apparatus provided with transmitters and transmitting antennas
A radio transmitting apparatus with a plurality of transmission units comprises a calculation unit configured to calculate, based on a data length of a transmission signal including a control... |
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US20090262858 |
CONSTELLATION REARRANGEMENT FOR ARQ TRANSMIT DIVERSITY SCHEMES
An ARQ (re-) transmission method of transmitting data in a wireless communication system wherein data packets are transmitted from a transmitter to a receiver, using a first transmission and a... |
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US20070217546 |
TRANSMISSION SIGNALS, METHOD AND APPARATUS
This invention relates to apparatus, methods, processor control code and signals for channel estimation in OFDM (Orthogonal Frequency Division Multiplexed) communication systems with a plurality... |
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US20150117277 |
DATA TRANSMISSION METHOD AND SYSTEM
A data transmission method and system are provided. The data transmission method includes: transmitting, by a BBU, frequency domain data obtained by performing a multi-antenna MIMO coding, to a... |
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US20060039499 |
Apparatus and method for space-time block coding
A space-time block coding apparatus and method for transmitting an input symbol sequence through a plurality of Tx antennas using a channel information from the receiver in order to improve the... |
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US20060034389 |
Wireless transmitting device and method
A wireless transmitting device for use in communication with a wireless receiving device with a wireless packet, includes a plurality of antennas, and a signal generator to generate a signal for a... |
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US20060034385 |
Wireless communication apparatus and method for estimating number of antennas
wireless communication apparatus (transmitter) including a plurality of antennas for transmitting a plurality of known symbol sequences and data symbols, transmits the known symbol sequences, each... |
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US20050213686 |
Reduced complexity transmit spatial waterpouring technique for multiple-input, multiple-output communication systems
A waterpouring system and method for use with a multiple-input, multiple-output (MIMO) transmitter. In one embodiment, the waterpouring system includes an encoding decision subsystem that selects... |
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US20060198460 |
Link adaptation for high throughput multiple antenna WLAN systems
A wireless device 148 that performs link adaptation is disclosed. The wireless device 148 comprises at least two antennas 101a, 120a and 101b, 120b, and a network interface logic operable to... |
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US20090129501 |
Optimal signaling and selection verification for transmit antenna selection with erroneous feedback
A method is provided for receiving data at a receiver via a communication channel from a transmitter having at least two transmitter antennas, the method including: receiving (S204) a codebook... |
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US20090028263 |
MIMO COMMUNICATION APPARATUS AND DATA RETRANSMISSION METHOD
A MIMO communication apparatus wherein HARQ technique is utilized, in a MIMO system, to simplify feedback information and hence reduce the amount of information to be transmitted, thereby saving... |
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US20100322349 |
METHOD FOR TRANSMITTING DATA USING CYCLIC DELAY DIVERSITY
A method of transmitting data using cyclic delay in a multi-antenna system using a plurality of subcarriers is disclosed. Data is transmitted through a phase shift based precoding scheme enhanced... |
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US20090046807 |
Method and system for beamforming communication in wireless communication systems
A method and system for beamforming communication in a wireless communication system that includes a wireless initiator and a wireless responder is provided. A channel matrix is estimated at the... |
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US20070147543 |
Extension of space-time block code for transmission with more than two transmit antennas
An STBC encoding extension method for more than two transmit antennas, which provides higher diversity gains while keeping the same coding/decoding latency as in the two-transmit-antenna case of... |
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US20070263746 |
Feedback frame structure for subspace tracking precoding
The specification and drawings present a new method, system, apparatus and software product for resolving a feedback frame structure for implementing subspace tracking precoding for a MIMO-OFDM... |
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US20080165892 |
Using the Preamble in an OFDM-Based Communications System to Indicate the Number of Guard Tones
Indicating the number of guard tones on the preamble frames is described for an OFDM or ODFMA based wireless communication system. The information of the number of guard tones or the range of the... |
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US20060056538 |
Apparatus and method for transmitting data using full-diversity, full-rate STBC
A data transmission apparatus and method using a full-diversity, full-rate STBC are provided. In the data transmission apparatus, a serial-to-parallel converter converts an input bit stream to... |
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US20090316807 |
METHOD AND APPARATUS FOR ACHIEVING TRANSMIT DIVERSITY AND SPATIAL MULTIPLEXING USING ANTENNA SELECTION BASED ON FEEDBACK INFORMATION
A method of achieving transmit diversity in a wireless communication system is disclosed. The method comprises encoding and modulating data stream based on feedback information, demultiplexing... |
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US20100254489 |
CODE ENHANCED STAGGERCASTING
A method and architecture for processing signal communications between an encoder and decoder operating according to the ATSC standard adapted for mobile handheld transmission is disclosed. The... |
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US20060182199 |
Apparatus and method for retransmitting data in a communication system
A communication system includes a transmitter and a receiver. If there is information data to transmit to the receiver, the transmitter generates a first transmission frame by signal-mapping the... |
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US20060133535 |
Apparatus and method for linearizing adaptive array antenna system
Disclosed is an apparatus and method for linearizing an adaptive array antenna system. The apparatus and method for linearizing an adaptive array antenna system uses an identical feedback path as... |
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US20150372724 |
METHOD AND APPARATUS FOR CONFIGURING COORDINATED MULTI-POINT MEASUREMENT SET
Method and an apparatus for configuring a coordinated multi-point measurement set. An embodiment of the present invention provides a method at a neighboring base station side (26) for configuring... |
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US20060083332 |
Apparatus enabled for optimizing spectral efficiency of a wireless link
An apparatus simultaneously transmits at least a first signal and a second signal. Each one of those signals comprises a data sequence and a training sequence. The apparatus is arranged to... |
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US20090034654 |
Dynamic multiplexing and de-multiplexing technique with enhanced synchronization
A communication system having a first station and a second station in communication over a wireless communications link. The first station is operative during a communication session to assemble... |
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US20120327983 |
TRANSMITTER APPARATUS, TRANSMISSION METHOD AND TRANSMISSION SYSTEM
There is a problem that if a transmitter apparatus having an adaptive modulation function is to be configured to divide data for transmission, the structure of the transmitter apparatus will be... |
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US20080232319 |
SYSTEM AND METHOD FOR TRANSMITTING/RECEIVING RESOURCE ALLOCATION INFORMATION IN A WIRELESS MOBILE COMMUNICATION SYSTEM
A system for transmitting/receiving resource allocation information in a wireless mobile communication system is provided. A transmission apparatus allocates a data burst in a frame, the data... |
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US20090316829 |
METHOD AND SYSTEM FOR TRANSMIT DIVERSITY FOR CHIP-TO-CHIP COMMUNICATIONS
Aspects of a method and system for transmit diversity for chip-to-chip communications may include transmitting a plurality of signals generated in accordance with a transmission diversity protocol... |
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US20070127592 |
Apparatus and method for transmitting/receiving a signal in a communication system
An apparatus for transmitting a signal in a communication system includes: MT number of transmission antennas; a space-time encoder for generating MT number of transmission symbol streams by... |
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US20160218902 |
METHOD FOR TRANSMITTING BROADCASTING SIGNAL, METHOD FOR RECEIVING BROADCASTING SIGNAL, APPARATUS FOR TRANSMITTING BROADCASTING SIGNAL, AND APPARATUS FOR RECEIVING BROADCASTING SIGNAL
The present invention provides a method for transmitting a broadcasting signal. The method for transmitting the broadcasting signal according to the present invention may comprise: an input... |