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Precoding Matrix

Precoding Matrix-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Updating precoding matrix for mimo transmissions
October 04, 2018 - N°20180287674

The present disclosure discloses that a device uses precoding to transmit independent data streams to existing users and additional independent data streams to one or more new users simultaneously. During a first transmission of a first one or more data streams that are precoded using a first precoding matrix, the device determines to transmit a second one or more data ...
Transmission scheme for wireless communication systems
Mediatek Inc.
September 27, 2018 - N°20180279352

A method of two-layer (rank=2) demodulation reference signal (dmrs) based transmission scheme is proposed. The precoding matrix on a data re can be represented as a×b.
Method of signal generation and signal generating device
Sun Patent Trust
September 20, 2018 - N°20180270096

A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.. .
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Data transmission method and apparatus
September 13, 2018 - N°20180262381

Embodiments of the present invention provide a data transmission method and apparatus, and the method includes: modulating to-be-sent information bits according to a lower order constellation diagram, and generating 4m lower order modulation symbols; multiplying a precoding matrix q by a column vector including every four lower order modulation symbols in the 4m lower order modulation symbols, to obtain 4m ...
Information feedback method, information feedback device and user equipment
September 13, 2018 - N°20180262245

The present disclosure relates to the field of communication technology, and provides an information feedback method, an information feedback device and a ue. The information feedback method includes steps of: acquiring pmis of multiple-level component precoding matrices of a precoding matrix for downlink data transmission; and feeding back the pmi of each of the multiple-level component precoding matrices of the ...
Feedback apparatus and method in multi-antenna system
September 13, 2018 - N°20180262244

Disclosed are feedback and transmission devices and methods in full-dimension multi-antenna systems using two-dimensional (2d) planar array antennas, wherein a ue estimates channel states each corresponding to a respective one of multiple domain channels by a reference signal received from a base station, and obtains precoding matrix indicators (pmis) each corresponding to a respective one of the multiple domain channels ...
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Signal generation method and signal generation device
Sun Patent Trust
September 06, 2018 - N°20180254806

A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.. .
Communication technique using csi-rs in mobile communication system
Samsung Electronics Co., Ltd.
August 23, 2018 - N°20180242285

Disclosed is a 5g or pre-5g communication system to be provided so as to support a data transmission rate higher than that of a 4g communication system, such as lte. Disclosed is a communication method of a base station using a channel state information reference signal (csi-rs) in a mobile communication system, the method comprising the steps of: receiving ...
Channel state information feedback method and apparatus
Samsung Electronics Co., Ltd.
August 23, 2018 - N°20180241454

The present disclosure relates to a 5g or pre-5g communication system for supporting a higher data transfer rate beyond a 4g communication system such as lte. A method and an apparatus for transmitting and receiving channel state information are disclosed.
Precoding matrix determination method and precoding matrix determination device
China Academy Of Telecommunications Technology
August 23, 2018 - N°20180241449

A precoding matrix determination method and a precoding matrix determination device are provided. The precoding matrix determination method includes: dividing each of the groups of vertical-dimension beams into a plurality of subgroups of vertical-dimension beams, and dividing each of the groups of horizontal-dimension beams into a plurality of subgroups of horizontal-dimension beams; determining a first stage codebook in accordance with ...
Method for determining precoding matrix indicator, user equipment, and base station
Huawei Technologies Co.,ltd.
August 23, 2018 - N°20180241447

A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first ...
Methods and apparatuses for transmitting coding indication information and determining precoding matrix
China Academy Of Telecommunications Technology
August 23, 2018 - N°20180241445

Methods and apparatuses for transmitting coding indication information and determining a precoding matrix, for use in resolving the problem that the resolution of code words in a codebook generated by using a combination of a beam vector subgroup and column selection cannot be flexibly adjusted. The method comprises: determining first precoding indication information and second precoding indication information, the first ...
Artificially mutual-coupled antenna arrays
Nokia Solutions And Networks
August 23, 2018 - N°20180241442

A mechanism for mutually coupling multiple antennas for transmission in a wireless communication environment, wherein, for a received or transmitted radio signal a precoding matrix is created that includes artificial mutual antenna coupling coefficients and processing the received or transmitted radio signal using the created precoding matrix.. .
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Wireless communication system, central unit equipment, distributed unit equipment, communication method of central unit equipment, ...
Nippon Telegraph And Telephone Corporation
August 16, 2018 - N°20180234152

In a partial centralization system configuration, a wireless communication system of the present invention transmits a precoding matrix generated in a media access control (mac) function or a matrix or vector obtained by dividing the precoding matrix between central unit equipment and distributed unit equipment in addition to data of modulated symbols necessary for a precoding matrix calculation and downlink ...
Method and apparatus for short-term feedback in multi-input multi-output communications
Alcatel Lucent
August 16, 2018 - N°20180234148

Embodiments of the present disclosure provide a method and apparatus for multi-input multi-output mimo communications in a wireless communication network. The method comprises: receiving, from a device, long-term precoding information for the mimo communication, the long-term precoding information indicating a first group of beams for a first antenna polarization, and a second group of beams for a second antenna polarization (...
Downlink multiple input multiple output enhancements for single-cell with remote radio heads
Texas Instruments Incorporated
August 16, 2018 - N°20180234146

A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the nt-by-n precoding matrix where n is the number of said layers and nt is the number of transmit ...
Downlink multiple input multiple output enhancements for single-cell with remote radio heads
Texas Instruments Incorporated
August 16, 2018 - N°20180234145

A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the nt-by-n precoding matrix where n is the number of said layers and nt is the number of transmit ...
Method for determining precoding matrix indicator, user equipment, and base station
Huawei Technologies Co.,ltd.
August 16, 2018 - N°20180234143

A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first ...
Facilitation of computational complexity reduction for periodic and aperiodic channel state information reporting in 5g ...
At&t Intellectual Property I, L.p.
August 09, 2018 - N°20180227029

Using channel state information (csi), e.g., rank information, precoding matrix index, etc., that is reported periodically by a user equipment, a complexity of reporting of aperiodic csi reporting can be reduced, by reducing a search space of a codebook used for the aperiodic csi reporting, when the ue is configured with periodic and aperiodic csi reporting. A periodic configuration ...
Codebook-based signal transmission/reception method in multi-antenna wireless communication system, and device for same
Lg Electronics Inc.
August 02, 2018 - N°20180219603

Disclosed are a codebook-based signal transmission/reception method in a multi-antenna wireless communication system, and a device for same. Specifically, provided is a method by which a terminal transmits/receives a signal on the basis of a codebook, in a 2-dimensional multi-antenna wireless communication system, comprising the steps of: receiving a channel state information reference signal (csi-rs) from a base ...
Method for reporting csi in wireless communication system and device for same
Lg Electronics Inc.
August 02, 2018 - N°20180219598

Disclosed in the present invention is a method for reporting, by a terminal, channel status information (csi) to a base station in a wireless communication system. The csi reporting method is characterized by including the steps of: transmitting, to a base station, first csi including a rank indicator in a first period unit; transmitting, to the base station, second csi ...
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