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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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Antenna configuration for co-operative beamforming
June 15, 2017 - N°20170170886

(a2) the first and second primary stations applying a precoding matrix across both the first antenna array and the second antenna array, and wherein the precoding matrix comprises a first vector for the first cell and a second vector for the second cell, the precoding matrix being based on the at least one channel matrix.
Precoding matrix indicator feedback method, receive end, and transmit end
June 15, 2017 - N°20170170883

And the first antenna group and the second antenna group belong to a same multi-antenna system; and sending, by the receive end, a precoding matrix indicator (pmi) to the transmit end. In this way, using the coefficient α to perform the phase adjustment on φn can increase a size of a codebook set applicable to different antenna ...
Precoding method, apparatus, and system
Huawei Technologies Co., Ltd.
June 15, 2017 - N°20170170880

The present disclosure relates to embodiments of a precoding method and systems for implementing those embodiments. The embodiments includes receiving, by a level 2 data center, level 1 channel information sent by at least two level 1 data centers, where the level 1 channel information includes a channel matrix between a terminal and the level 1 data center; performing, by the level 2 data center, calculation ...
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Method and apparatus for implementing interference alignment on the basis of codebook design and selection
Huawei Technologies Co., Ltd.
May 25, 2017 - N°20170149549

Disclosed are a method and apparatus for interference alignment based on codebook design and selection. The method includes: a codebook set including codebooks of different sizes of a precoding matrix is pre-designed or pre-stored; a receiver or a transmitter selects a codebook satisfying a specified condition from the codebook set to explicitly or implicitly notify the opposite end; the receiver ...
Method for measuring downlink channel quality, transmit end, receive end, and system
Huawei Technologies Co., Ltd.
May 18, 2017 - N°20170141834

The present disclosure disclose a method including: a transmit end transmits at least two mixed pilot signals to a receive end separately by using at least two physical antennas. The at least two mixed pilot signals are separately obtained after preset pilot signals corresponding to logical antennas in the at least two logical antennas are weighted by using a precoding ...
Channel station information reporting and transmission mode for enhanced machine type communication
Qualcomm Incorporated
May 18, 2017 - N°20170141831

Methods, systems, and devices for wireless communication are described. A wireless device may identify a transmission mode that specifies a rank indicator (ri) feedback parameter for channel state indicator (csi) reporting, and may determine that the appropriate csi configuration excludes an ri. The device may then send csi reports with a precoding matrix indicator (pmi) and without the ri, and ...
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Method for reporting precoding matrix index for high-frequency band communication in wireless communication system, and ...
Lg Electronics Inc.
May 18, 2017 - N°20170141826

Disclosed in the present application is a method for a terminal reporting a precoding matrix index to a base station in a wireless communication system. Specifically, the method comprises the steps of: estimating a channel with the base station; on the basis of the estimated channel, selecting a first precoding matrix from a first codebook; on the basis of the ...
Method and system for enabling resource block bundling in lte-a systems
Samsung Electronics Co., Ltd
May 18, 2017 - N°20170141824

A base station includes a transmit path circuitry to transmit an indication of whether a subscriber station is configured with precoding matrix indicator/rank indicator (pmi/ri) reporting. The transmit path circuitry sets a pre-coding granularity to multiple physical resource blocks in the frequency domain to perform a same pre-coding over a bundled resource block if the subscriber station is ...
Method and apparatus for reduced feedback mimo
Samsung Electronics Co., Ltd
May 11, 2017 - N°20170134082

Methods and apparatuses for csi reporting mechanisms are provided. A user equipment (ue) includes a transceiver and a processor operably connected to the transceiver. The transceiver is configured to receive transmission scheme configuration information, codebook configuration information, and emimo-type configuration information. The processor is configured to calculate, in response to receipt of configuration information that indicates an open-loop diversity operation, ...
Method and apparatus for beamforming with coupled antennas
Motorola Mobility Llc
May 11, 2017 - N°20170134078

A method and apparatus provide beamforming with coupled antennas. A first channel matrix can be transformed into a transformed second channel matrix. The first channel matrix can be a channel from a transmitter array of antennas of the transmitting device to at least one receiver antenna of a receiving device. A precoding matrix can be determined that maximizes the capacity ...
Method and apparatus for controlling uplink transmission on discontinuous reception operation in wireless communication system
Lg Electronics Inc.
April 27, 2017 - N°20170118794

A method for controlling uplink transmissions on discontinuous reception (drx) operation, by a wireless device, in a wireless communication system, the method comprising: configuring a channel quality indicator (cqi)-masking which indicates that at least one of a cqi, a precoding matrix index (pmi), a rank indicator (ri), or a precoding type indicator (pti) is not to be reported on ...
Channel quality measurement method in multiple antenna wireless communication system and device for same
Lg Electronics Inc.
April 20, 2017 - N°20170111098

The present invention relates to a method and device for measuring channel quality by a base station having a two-dimensional active antenna system including multiple antennas. Particularly, the method comprises: receiving channel state information (csi) generated on the basis of a first reference signal relating to a part of multiple antennas, from a terminal; selecting a precoding and a rank ...
Signal processing method, transmitter, and compressive sampling receiving device
Huawei Technologies Co., Ltd.
April 20, 2017 - N°20170111082

Embodiments provide a signal processing method, a transmitter, and a compressive sampling receiving device. The method includes: obtaining a periodic pseudo random sequence used when a compressive sampling receiving device performs frequency mixing. The method also includes selecting 2n information symbols from n radio signals; determining a precoding matrix d according to the periodic pseudo random sequence. The method also ...
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Channel state information csi reporting method and apparatus, and base station antenna
Huawei Technologies Co., Ltd.
April 06, 2017 - N°20170099093

The present invention discloses a channel state information csi reporting method and apparatus, and a base station antenna. In the method, at least one precoding matrix is selected from a codebook based on a reference signal sent by a base station, and csi is sent to the base station. The csi includes at least one selected precoding matrix indicator pmi, ...
System and method for multiple-input and multiple-output (mimo) full-duplex precoding algorithms
Huawei Technologies Canada Co., Ltd.
March 23, 2017 - N°20170085358

Embodiments are provided to enable effective cancellation or reduction of the self-interference (si) introduced when applying full-duplex transmission to mimo systems. A method embodiment includes forming, using a first component matrix of a precoding matrix generated in accordance with signal channel conditions, a plurality of beams for a plurality of transmit signals, and forming, using a second component matrix of ...
Information feedback method, terminal, base station, communication system and storage medium
Zte Corporation
March 23, 2017 - N°20170085304

Disclosed are a channel state feedback information determination method, a terminal, a base station and a communication system. The method includes that: a channel state is measured to form a measurement result; when a rank indicator (ri) is 2, a precoding matrix is formed according to the measurement result and a precoding codebook matrix model w; and channel state feedback information ...
Signal generating method and signal generating device
Sun Patent Trust
March 16, 2017 - N°20170078007

A transmission method of 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. One of signal generation processing in which phase change is performed and signal generation processing in which phase change ...
Method and apparatus for csi reporting on pucch
Samsung Electronics Co., Ltd
March 09, 2017 - N°20170070277

A method of a user equipment (ue) for channel state information (csi) reporting in a wireless communication system. The method comprises receiving csi reporting configuration information, generating a csi report comprising at least one of a rank indicator (ri), a channel quality indicator (cqi), a precoding matrix indicator (pmi), or a csi-rs resource indicator (cri) based on the csi reporting ...
Method and apparatus for transmitting signal in wireless communication system
Lg Electronics Inc.
March 09, 2017 - N°20170070273

A method and apparatus for transmitting a signal in a wireless communication system are provided. The method includes: generating r spatial streams each of which is generated on the basis of an information stream and a reference signal; generating n transmit streams on the basis of the r spatial streams and a precoding matrix (where r<n); mapping ...
Beamforming signaling in a wireless network
Comcast Cable Communications, Llc
February 23, 2017 - N°20170054481

Methods, apparatus, and systems for wireless communications are described. A first base station may be configured to transmit a measurement information message to a wireless device. The measurement information message may comprise at least one information element, wherein the at least one information element indicates one or more first resource blocks corresponding to first signals associated with the first base ...
Non-linear precoder with separate tracking
Alcatel Lucent
February 23, 2017 - N°20170054473

A network unit includes a non-linear precoder for jointly pre-processing transmit samples to be transmitted over respective communication channels for crosstalk mitigation. The non-linear precoder includes a first non-linear precoding stage configured to operate according to a first triangular precoding matrix and including a modulo function, followed by a second linear precoding stage configured to operate according to a second ...
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