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| Application No. | Application Title | Issue Date |
| 20120128089 | WIRELESS COMMUNICATION SYSTEM, TRANSMITTING APPARATUS, WIRELESS COMMUNICATION METHOD, AND CONTROL METHOD FOR TRANSMITTING APPARATUS A wireless communication system includes a transmitting apparatus, and a plurality of receiving apparatuses. A first receiving apparatus among the plurality of receiving apparatuses includes, a first receiver that receives wireless signals transmitted from a plurality o... | 05/24/2012 |
| 20120128090 | METHOD FOR PROVIDING INFORMATION OF ACCESS POINT SELECTION A method for providing information of access point (AP) selection in a wireless local area network (WLAN) system is provided. The method includes: receiving from candidate APs the AP selection information comprising channel correlation information for other stations ass... | 05/24/2012 |
| 20120106667 | SYSTEMS AND METHODS OF TRANSMITTER PROTECTION FOR WIRELESS COMMUNICATIONS Various embodiments provide for systems and methods for wireless communications that implement transmitter protection schemes using spatial combining. The protection scheme implemented by some embodiments provides for a number of benefits, including without limitation: ... | 05/03/2012 |
| 20120106668 | METHOD AND SYSTEM FOR AN ALTERNATING CHANNEL DELTA QUANTIZER FOR MIMO PRE-CODERS WITH FINITE RATE CHANNEL STATE INFORMATION FEEDBACK Aspects of a method and system for an alternating channel delta quantizer for MIMO pre-coders with finite rate channel state information feedback may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook using a cost functi... | 05/03/2012 |
| 20120082257 | Method and System for Channel Estimation in a Single Channel MIMO System with Multiple RF Chains for WCDMA/HSDPA Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a plurality of transmit antennas. A plurality of vectors of baseband combined ch... | 04/05/2012 |
| 20120082190 | PMI FEEDBACK WITH CODEBOOK INTERPOLATION Various embodiments of this disclosure may describe apparatuses, methods, and systems for interpolation of precoding matrixes to increase feedback accuracy of the channel state information (CSI) feedback in a wireless communication network. Other embodiments may also be... | 04/05/2012 |
| 20120069926 | METHOD OF GENERATING CODEBOOK AND TRANSMITTING DATA IN A MULTI-INPUT MULTI-OUTPUT SYSTEM A method for designing an optimized codebook in a multi-input multi-output communication method using various codebooks is disclosed. In particular, an optimized codebook with respect to eight transmission antennas is devised, and a method for effectively transmitting d... | 03/22/2012 |
| 20120069924 | LINEAR PRECODING IN MIMO BROADCAST CHANNEL WITH ARBITRARY RANK CONSTRAINTS Methods and systems for transmission are shown that include iteratively generating an optimized precoder matrix and optimized linear filters for multiple receivers, where the optimized precoder matrix is based on a linear filter from a previous iteration and the optimiz... | 03/22/2012 |
| 20120069925 | METHOD AND APPARATUS FOR FEEDBACK IN CLOSED LOOP TRANSMITTING A method an apparatus is described for providing feedback for closed-loop transmitting with multiple transmit and receive antennas. The method includes a first step 900 of providing a codebook containing sets of weightings for each data stream of the multiple tra... | 03/22/2012 |
| 20120051404 | METHOD FOR ACCOMMODATING OVERLAPPING REFERENCE SIGNAL PATTERNS The present application describes embodiments of methods and apparatuses that may be used to accommodate different reference symbol patterns. One embodiment of the method includes identifying overlapping resource element(s) in a resource block by comparing a first patte... | 03/01/2012 |
| 20120051408 | BEAMFORMING FEEDBACK OPTIONS FOR MU-MIMO Beamforming may be used in MIMO communication systems to further enhance spectral efficiency. Beamforming refers to beamed transmissions to a single destination (e.g., a station) at a time, to enhance the rate and/or range of transmission. To perform beamforming from a ... | 03/01/2012 |
| 20120045007 | INSERTING AND DECODING REPLICATED DATA SYMBOLS IN WIRELESS COMMUNICATIONS Examples are generally described that include transmission methods including inserting at least a portion of data from a first data stream into a second data stream to be transmitted over a communications channel. On receipt of the two data streams, examples of receivin... | 02/23/2012 |
| 20120045006 | RADIO FREQUENCY FRONT END CIRCUIT A RF front end circuit includes a processor, a main receiving (Rx) path and an adjustment path connected between the processor and an external antenna array in parallel, and a coupling module coupled with the main Rx path. The adjustment path includes an adjustment tran... | 02/23/2012 |
| 20120045008 | PILOT PATTERN FOR MIMO OFDM In an embodiment, a transmitter includes a transmission path that is configurable to generate first pilot clusters each including a respective first pilot subsymbol in a first cluster position and a respective second pilot subsymbol in a second cluster position such tha... | 02/23/2012 |
| 20120039377 | Multiple-Input Multiple-Output System And Method A multiple-input multiple-output (MIMO) system can transmit on multiple antennas simultaneously and receive on multiple antennas simultaneously. Unfortunately, because a legacy 802.11a/g device is not able to decode multiple data streams, such a legacy device may “sto... | 02/16/2012 |
| 20120039411 | FEED-FORWARD CONTROL SIGNALING AND DECODING SCHEMES Systems and methods for conveying wireless transmission allocation information are disclosed. In accordance with one method, an index indicating selected data stream parameters is received. In addition, an indication of a number of transmit antennas at a transmitter fro... | 02/16/2012 |
| 20120039412 | ENFORCING CONSTANT MODULUS AND FINITE ALPHABET PROPERTIES IN ADAPTIVE AND DUAL-STAGE CODEBOOKS Methods and apparatus for enforcing codebook properties (e.g., constant modulus and/or finite alphabet) in adaptive and dual-stage codebooks are described. One example method generally includes receiving multiple feedback aspects of a channel for wireless communications... | 02/16/2012 |
| 20120033755 | Transmit Mode Switching for MIMO Base Stations In a transmitter using at least two transmitting antennas a STTD transmitter is used in combination with a common pre-coding transmitter for power amplifying power balancing. A selector can be provided for selecting data/channels transmitted using STTD and common pre-co... | 02/09/2012 |
| 20120033756 | Multi-User Downlink Linear MIMO Precoding System Multi-user (MU-) MIMO systems with quantized feedback are designed to maximize the sum-rate via scheduling and linear precoding. To maximize throughput over the network, quantized CSIT is sent through a low-rate feedback link feedback from a plurality of users back to a... | 02/09/2012 |
| 20120033723 | METHOD, PRE-CODING APPARATUS AND WIRELESS COMMUNICATION SYSTEM FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COLLABORATIVE COMMUNICATION A method for multiple-input multiple-output (MIMO) collaborative communication in a wireless communication system includes at least one user equipment and M base stations performing collaborative communication with the user equipment. Here, M is an integer that is great... | 02/09/2012 |
| 20120027113 | STRUCTURED MIMO CODEBOOK Provided is a method of wireless communication which includes selecting a codebook from a plurality of codebooks in accordance with an antenna characteristic, and transmitting an indication of the selected codebook. Each of the plurality of codebooks is associated with ... | 02/02/2012 |
| 20120027116 | MULTICARRIER TECHNIQUES FOR WIRELESS SYSTEMS Multicarrier techniques for wireless communications system are described. An apparatus may comprise a carrier management module to define a primary carrier for use by a multicarrier communications system to communicate control information, and a secondary carrier for us... | 02/02/2012 |
| 20120027112 | Antenna Switching in a Closed Loop Transmit Diversity System A method for closed loop transmit diversity is disclosed. Data from user equipment (UE) that was transmitted using multiple transmit antennas is received. A new transmit antenna is selected for the UE. A new cycle period for the UE is determined. A new transmit antenna ... | 02/02/2012 |
| 20120027111 | METHOD AND APPARATUS FOR MAJOR GROUP SCHEDULING IN A FIXED BEAM COMMUNICATION SYSTEM An OFDMA communication system is provided that schedules partial usage of subchannels (PUSC) major groups by assigning a beam matrix of a plurality of beam matrices to each major group of multiple PUSC major groups, receiving an uplink signal from each user equipment of... | 02/02/2012 |
| 20120027114 | BEAMFORMING BY ANTENNA PUNCTURING Beamforming is provided for a wireless MIMO device by using antenna puncturing to reduce the number of transmit antennas that are used to transmit data for certain subcarriers. In a conventional approach, if N spatial streams are being used to provide spatial multiplexi... | 02/02/2012 |
| 20120027115 | Method and Apparatus for Impairment Correlation Estimation in a Wireless Communication Receiver A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver may b... | 02/02/2012 |
| 20120020425 | APPARATUS AND METHOD FOR MINIMIZING ERRORS BY A CELL EDGE USER IN A MULTI-CELL COMMUNICATION SYSTEM The present invention relates to performance improvement in a cell edge, particularly, to a method for selecting a precoder for a terminal in a multiple antenna system, wherein the method comprises: performing channel estimation for reference signals of a serving base s... | 01/26/2012 |
| 20120020269 | MEDIA ACCESS TECHNIQUES FOR MULTIPLE USER TRANSMISSIONS Techniques are disclosed involving media access. For instance, a transmitting device may have data to transmit to destination devices. The transmitting device selects one or more of the destination devices and initiates an exchange with each of one or more of the select... | 01/26/2012 |
| 20120014318 | MULTIPLEXING DEMODULATION REFERENCE SIGNALS IN WIRELESS COMMUNICATIONS Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple layers in multiple-input multiple-output (MIMO) communications. A CS ind... | 01/19/2012 |
| 20120014469 | WIRELESS COMMUNICATION SYSTEM, DEVICE AND METHOD A wireless communication system includes an inverse matrix calculating unit which uses an inverse matrix of a channel matrix of a first combination of L antennas (where L is an integer, 1≦L≦N) selected from the N antennas, so as to calculate an inverse matrix of a c... | 01/19/2012 |
| 20120008703 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM AND CHANNEL FEEDBACK METHOD THEREOF FOR USE IN MULTI-INPUT MULTI-OUTPUT NETWORK A communication apparatus, a communication system and a channel feedback method thereof for use in multi-input multi-output network are provided. The communication apparatus and the communication system communicate with each other via first antenna and second antenna re... | 01/12/2012 |
| 20120002742 | MIMO CHANNEL STATE INFORMATION ESTIMATION WITH COUPLED ITERATIVE TWO-STAGE RANKING A plurality of wireless channels link a transmitter and a receiver, each channel corresponding to a different transmit-receive antenna pair. Channel state information is estimated for the plurality of wireless channels by grouping the plurality of channels into one or m... | 01/05/2012 |
| 20120002743 | Statistical Joint Precoding in Multi-Cell, Multi-User MIMO A network node jointly precodes multi-user (MU) multiple-input multiple-output (MIMO) transmissions simultaneously sent from geographically distributed base stations to a plurality of mobile terminals over associated downlink MU-MIMO channels. The node receives feedback... | 01/05/2012 |
| 20120002744 | Methods and Systems for Transmitting an Information Signal in a Multiple Antenna Communication System Methods and systems are provided for transmitting a plurality of information signals in a multiple antenna communication system. One or more information signals are coded using a plurality of coders to generate the plurality of coded information signals and an Inverse F... | 01/05/2012 |
| 20110310877 | Coverage Extension Using Carrier Diversity In Multi-Carrier Communication Systems Embodiments are described to address coverage difference problems in communication systems (300) that operate in multiple frequency bands. Embodiments are described that utilize both Carrier Multiplexing and Carrier Diversity for a plurality of frequency carriers... | 12/22/2011 |
| 20110305223 | Method and Apparatus for Data Communication Through a Coordinated Multi-Point Transmission The present invention relates to a method and an apparatus for data communication through a Coordinated Multi-Point Transmission in a multiple cell environment. According to the present invention, the data communication method through a coordinated multi-point transmiss... | 12/15/2011 |
| 20110305290 | DEVICE AND METHOD SUPPORTING MULTI-CARRIER WAVES Provided are a device and method supporting multi-carrier waves. The device comprises: a multi-carrier control unit for receiving carrier wave allocation data including data relating to allocated carrier waves and deactivating a portion of the carrier waves included in ... | 12/15/2011 |
| 20110305291 | MIMO System Having A Plurality Of Service Antennas For Data Transmission And Reception And Method Thereof Embodiments provide a MIMO system having a plurality of service antennas and method for data transmission and reception. The system includes a plurality of service antennas, where each service antenna is configured to simultaneously serve a plurality of terminals and in... | 12/15/2011 |
| 20110299618 | MULTIPLE-BRANCH WIRELESS RECEIVER A wireless receiver detects signals received at two or more antennas, with each antenna coupled to an input receive chain. A switch is employed to couple selected input receive chains to one or more corresponding output receive chains during listening, coarse-detection,... | 12/08/2011 |
| 20110299617 | X-mimo systems with multi-transmitters and multi-receivers A method and apparatus for transmitting and receiving a wireless transmission of a plurality of data streams in a wireless communication system having a plurality of nodes is disclosed. Each node has multiple antennas. The method involves receiving first and second data... | 12/08/2011 |
