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Precoding Matrix patents

      

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 Channel quality measurement method in multiple antenna wireless communication system and device for same patent thumbnailChannel quality measurement method in multiple antenna wireless communication system and device for same
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 based on a precoding matrix indicator (pmi) and a rank indicator (ri) of the received csi; generating a port by applying the selected precoding and the selected rank; through the generated port, transmitting, to the terminal, a physical downlink shared channel (pdsch) and a demodulation-reference signal (dm-rs) configured for the terminal; and receiving, from the terminal, a channel quality indication (cqi) feedback for reducing a mismatch for the cqi of the csi, wherein the cqi feedback may be generated based on the dm-rs..
Lg Electronics Inc.


 Signal processing method, transmitter, and compressive sampling receiving device patent thumbnailSignal processing method, transmitter, and compressive sampling receiving device
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.
Huawei Technologies Co., Ltd.


 Transmission method, transmitter apparatus, reception method and receiver apparatus patent thumbnailTransmission method, transmitter apparatus, reception method and receiver apparatus
Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ.
Sun Patent Trust


 Channel state information csi reporting method and apparatus, and base station antenna patent thumbnailChannel state information csi reporting method and apparatus, and base station antenna
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.
Huawei Technologies Co., Ltd.


 System and  multiple-input and multiple-output (mimo) full-duplex precoding algorithms patent thumbnailSystem and multiple-input and multiple-output (mimo) full-duplex precoding algorithms
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 the precoding matrix, a plurality of si cancellation signals corresponding to the transmit signals.
Huawei Technologies Canada Co., Ltd.


 Information feedback method, terminal, base station, communication system and storage medium patent thumbnailInformation feedback method, terminal, base station, communication system and storage medium
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 is formed according to the precoding matrix.
Zte Corporation


 Signal generating method and signal generating device patent thumbnailSignal generating method and signal generating device
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 is not performed is selectable, thereby improving general versatility in signal generation..
Sun Patent Trust


 Method and  csi reporting on pucch patent thumbnailMethod and csi reporting on pucch
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 configuration information, determining a number of bits of a payload included in the csi report, and selecting at least one of a physical uplink control channel (pucch) format or a physical uplink shared channel (pusch) based on the number of bits of the payload included in the csi report to transmit the csi report..
Samsung Electronics Co., Ltd


 Method and  transmitting signal in wireless communication system patent thumbnailMethod and transmitting signal in wireless communication system
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 the n transmit streams to at least one resource block; and generating n signals from the n transmit streams mapped to the at least one resource block, and the transmitting the n signals to a user equipment through respective antennas..
Lg Electronics Inc.


 Beamforming signaling in a wireless network patent thumbnailBeamforming signaling in a wireless network
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.
Comcast Cable Communications, Llc


Non-linear precoder with separate tracking

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 precoding matrix.
Alcatel Lucent

Calibration and beamforming in a wireless communication system

Techniques for performing calibration and beamforming in a wireless communication system are described. In an aspect, a node b may periodically perform calibration in each calibration interval with a set of ues to obtain a calibration vector for the node b.
Qualcomm Incorporated

Method and apparatus of controlling periodic csi reporting

Exemplary embodiments of the present invention relates to an apparatus and method for performing periodic csi reporting available in a system supporting a tdd-fdd aggregation operation and an fdd-tdd aggregation operation. A periodicity and an offset for periodic reporting of channel quality indicator and precoding matrix indicator may be determined based on the cell type of a primary serving cell for a tdd-fdd carrier aggregation and an fdd-tdd carrier aggregation..
Innovative Technology Lab Co., Ltd.

Improved beamforming method in multi-antenna wireless communication system and same

The present invention relates to a method and an apparatus for beamforming by a base station in a wireless communication system supporting multiple antennas. Particularly, the method comprises the steps of: determining a first coverage on the basis of long-term feedback information; setting multiple logical antenna ports for the first coverage on the basis of a combination of multiple horizontal beams and multiple vertical beams; and transmitting a channel state information-reference signal to a terminal according to a precoding matrix index which is set on the basis of the multiple antenna ports, wherein the multiple horizontal beams respectively correspond to multiple second coverages divided into horizontal domains on the basis of the first coverage, and the multiple vertical beams respectively correspond to multiple third coverages divided into vertical domains on the basis of the first coverage..
Lg Electronics Inc.

Operation of a multi-standard base station site supporting at least two different radio access technologies

In a multi-standard base station site, a first base station module is configured to operate in multi-antenna transmission mode according to a first radio access technology by means of multiple transmitter branches. The first base station module is also configured to determine phase/time compensation information based on ue feedback information representative of precoding matrix index, pmi.
Telefonaktiebolaget Lm Ericsson (publ)

Higher rank codebooks for advanced wireless communication systems

A user equipment (ue) capable of communicating with a base station includes a plurality of antenna ports p, the ue includes a transceiver configured to receive downlink signals indicating precoder codebook parameters, the downlink signal including first and second quantities of antenna ports (n1, n2) indicating respective quantities of antenna ports in first and second dimensions, first and second oversampling factors (o1, o2) indicating respective oversampling factors for dft beams in the first and second dimensions, and a codebook subset selection configuration among a plurality of codebook subset selection configurations, and a controller configured to determine first and second beam skip numbers (s1, s2) indicating respective differences of leading beam indices of two adjacent beam groups in the first and second dimensions, determine a plurality of precoding matrix indicators (pmis) including a first pmi (i1,1, i1,2) and a second pmi i2, based on the received downlink signals and the skip numbers (s1, s2), and cause the transceiver to transmit uplink signals containing the plurality of pmis to the base station.. .
Samsung Electronics Co., Ltd

Codebook sub-sampling for csi feedback on pucch for 4tx mimo

Channel state information (csi) feedback in a wireless communication system (100) is disclosed. User equipment (107) transmits a csi feedback signal via a physical uplink control channel (pucch) (108).
Texas Instruments Incorporated

Downlink control information (dci) enhancements for non-orthogonal multiple access

The present disclosure relates to downlink control information (dci) enhancements for non-orthogonal multiple access. For example, the disclosure presents a method and an apparatus for wireless communications that may include determining, at the base station, downlink control information (dci) for a first user equipment (ue), wherein the dci for the first ue comprises modulation order information, spatial layer information, and power ratio information of the first ue, and a precoding matrix indicator (pmi) and spatial layer information of a second ue; and transmitting the determined dci to the first ue..
Qualcomm Incorporated

Method and efficient feedback in a wireless communication system supporting multiple antenna

A method for transmitting channel status information (csi) via uplink in a wireless communication system includes transmitting a first precoding matrix indicator (pmi) and a second pmi at a subframe. A subsampled codebook for each of a precoding codebook for rank-1 and a precoding codebook for rank-2 is determined based on at least the first pmi or the second pmi.
Lg Electronics Inc.

Precoding matrix indicator feedback method, receiving method, and apparatus

Embodiments of the present invention disclose a precoding matrix indicator feedback method, receiving method, and apparatus. User equipment ue receives a reference signal sent by a base station; the ue selects, based on the reference signal, a precoding matrix for each first subband of n first subbands in a system transmission bandwidth from a codebook, where the codebook includes at least two precoding matrixes, and each precoding matrix is denoted by at least a first precoding matrix indicator pmi and a second pmi, where each first subband of the n first subbands corresponds to a second pmi, and each second subband of m second subbands corresponds to a first pmi; and the ue feeds back the first pmi corresponding to each second subband to the base station, and feeds back the second pmi corresponding to each first subband to the base station..
Huawei Technologies Co., Ltd.

Method and channel measurement and feedback

Embodiments of the invention provide a method for channel measurement and feedback. The method comprises transmitting a first csi-rs and a second csi-rs to a user equipment for vertical csi measurement, wherein the first csi-rs is based on antenna configuration of one vertical antenna element mapping to one vertical antenna port, and the second csi-rs is based on antenna configuration of multiple vertical antenna elements mapping to one vertical antenna port.
Nec Corporation

Method of transmitting control information using physical uplink shared channel region in mimo antenna system

Provided is a method of transmitting control information using a physical uplink shared channel (pusch) region in a system employing a multi-input multi-output (mimo) antenna system in which transmission is performed through a plurality of layers. A method of transmitting a channel quality indicator (cqi)/precoding matrix indicator (pmi) using a pusch region in a system employing a mimo antenna system in which transmission is performed through a plurality of layers includes encoding the cqi/pmi using one channel encoder, and transmitting the encoded cqi/pmi using some or all of the layers.
Electronics And Telecommunications Research Institute

Method for reporting channel state information, user equipment, and base station

The present application discloses a method for reporting channel state information, user equipment, and a base station. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set includes at least two reference signals; sending first csi to the base station, where the first csi is determined according to the first reference signal set, and the first csi includes a first ri and/or a first pmi, where the first pmi is used to indicate a first precoding matrix; receiving a second reference signal set sent by the base station, where the second reference signal set is determined based on the first csi, and the second reference signal set includes at least one reference signal; and sending second csi to the base station, where the second csi is determined according to the second reference signal set..
Huawei Technologies Co., Ltd.

Signal generation method and signal generation device

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.. .
Sun Patent Trust

Method for transmitting channel state information in wireless access system

A method is provided for reporting channel state information (csi) in a wireless access system which supports carrier aggregation. A user equipment (ue) measures a first type csi for a first component carrier (cc) of two or more downlink (dl) ccs, and measures a second type csi for a second cc of the two or more dl ccs.
Lg Electronics Inc.

Advanced beamforming and feedback methods for mimo wireless communication systems

A user equipment (ue) capable of communicating with a base station (bs) includes a transceiver configured to receive a signal comprising a csi process configuration, wherein the csi process configuration comprises a csi-rs resource configuration to identify a csi-rs resource and a csi-rs on the csi-rs resource, and transmit a precoding matrix indicator to the base station, and a controller configured to derive the precoding matrix indicator utilizing the csi-rs on the csi-rs resource. When the csi-rs resource configuration indicates 4 csi-rs ports: the precoding matrix indicator has a 3-bit size when a rank to derive the precoding matrix indicator is one; the precoding matrix indicator has a 3-bit size when the rank is two; the precoding matrix indicator has a 2-bit size when the rank is three; and the precoding matrix indicator has a 1-bit size when the rank is four..
Samsung Electronics Co., Ltd

Method for transmitting and receiving downlink control information

A method for efficiently transmitting and receiving downlink control information is disclosed. The method includes, at a base station, receiving feedback information including a precoding matrix index (pmi) from a user equipment (ue) and transmitting precoding information having a predetermined bit number according to the number of antenna ports and a transmission mode of the base station.
Lg Electronics Inc.

Beamforming based communications method and apparatus

Embodiments of the present application provide a beamforming based communications method and apparatus. The method includes: obtaining, by a transmit end, a transmit-end precoding matrix trbb, a transmit-end intermediate-frequency beamforming matrix trif, and a transmit-end radio-frequency-end beamforming matrix trrf according to feedback information that is from a receive end; acquiring a first data stream, and performing precoding processing on the first data stream according to trbb, to generate a first analog signal; performing weighting and power amplification processing on the first analog signal according to trif, to generate a second analog signal; performing weighting and power amplification processing on the second analog signal according to trrf, to generate a third analog signal; and determining an antenna array matching the third analog signal, and transmitting the third analog signal to the receive end by using the antenna array matching the third analog signal..
Huawei Technologies Co., Ltd.

Precoding with a codebook for a wireless system

A base station used in a wireless communications system with multiple transmission ranks is disclosed. The base station comprises a memory to store a codebook for a transmission rank, a beamforming controller to precode data with a precoding matrix selected from the codebook, and a transmitter to transmit the precoded data to a user equipment, wherein the precoding matrix is selected according to a first description and a second description, which are unique to the precoding matrix, and wherein the second description provides a finer description of the codebook than the first description.
Nec Corporation

Method and transmitting and receiving channel state information

A communication method of a user equipment in a mobile communication system. The method includes receiving a control signal from a base station, the control signal comprising at least one of: a first information element or a second information element; determining, if a field of the first information element is set to a predetermined value and a channel state information (csi) reporting mode determined based on the second information element is a redetermined mode, a codebook based on the csi reporting mode; generating a csi based on the determined codebook, the csi comprising at least one of a rank indicator (ri), a first precoding matrix indicator (pmi), or a second pmi; and reporting the generated csi to the base station..
Samsung Electronics Co., Ltd.

Codebook sub-sampling for csi feedback on pucch for 4tx mimo

Channel state information (csi) feedback in a wireless communication system is disclosed. User equipment transmits a csi feedback signal via a physical uplink control channel (pucch).
Texas Instrumentsins Corporated

Method for feeding back channel state information, user equipment, and base station

Embodiments of the present invention provide a method for feeding back channel state information, a user equipment, and a base station, to improve feedback precision of channel state information. The method includes: receiving a reference signal sent by a base station; selecting a precoding matrix w from a codebook according to the reference signal, where a column vector of the precoding matrix w may be expressed as α[v ejφv]t, v=[1 ejθ]; and sending a precoding matrix indicator pmi to the base station, where the pmi is corresponding to the selected precoding matrix w.
Huawei Technologies Co., Ltd.

Method of performing a hybrid beamforming in a wireless communication system and apparatus therefor

A method of performing a beamforming in a base station of a wireless communication system according to one embodiment of the present invention may include determining an effective range of an analog beam based on a gain of an analog beam-forming in a hybrid beamforming, determining a precoding matrix for a digital beamforming in the hybrid beamforming based on the effective range of the analog beam, and performing the hybrid beamforming having the digital beamforming and the analog beam-forming coupled therein based on the effective range and the precoding matrix.. .
Lg Electronics Inc.

Method and channel state information (csi) reporting

Methods and apparatuses for csi reporting mechanisms are provided. A user equipment (ue) apparatus includes a transceiver and a processor.
Samsung Electronics Co., Ltd

Precoding matrix set determining method and apparatus, and parameter indication information sending method and apparatus

A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method include: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix.
Huawei Technologies Co., Ltd.

Transmission method, transmitter apparatus, reception method and receiver apparatus

Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ.
Sun Patent Trust

System and multiple-input and multiple-output (mimo) full-duplex precoding structures

Embodiments are provided to enable effective cancellation or reduction of the self-interference (si) introduced when applying full-duplex (fd) transmission to multiple-input-multiple-output (mimo) systems. A method embodiment includes forming, using a precoding matrix generated in accordance with channel conditions, a plurality of beams for a plurality of transmit signals and a plurality of self-interference cancellation signals corresponding to the plurality of transmit signals.
Huawei Technologies Canada Co., Ltd.

Codebook design and structure for advanced wireless communication systems

A base station capable of communicating with a user equipment (ue) includes a transceiver configured to transmit downlink signals containing first and second antenna numbers, first and second oversampling factors indicating respective oversampling rates in first and second dimensions for each beam group, first and second quantities of beams indicating respective quantities of beams in the first and second dimensions for each beam group, and first and second beam skip numbers indicating respective differences of leading beam indices of two adjacent beam groups in the first and second dimensions, receive uplink signals containing a plurality of precoding matrix indicators (pmis) from the ue. Other embodiments including methods and ues and methods are disclosed..
Samsung Electronics Co., Ltd

Method and arrangement for adapting a multi-antenna transmission

A method in a first node for adapting a multi-antenna transmission to a second node over a wireless channel is provided. The wireless channel has at least three inputs and at least one output.
Telefonaktiebolaget Lm Ericsson (publ)

Signal generating method and signal generating apparatus

A transmission method for simultaneously transmitting a first modulated signal and a second modulated signal at the same frequency includes performing precoding on both signals using a fixed precoding matrix and regularly changing the phase of at least one of the signals. In this method, the power ratio between a plurality of signals transmitted from a plurality of antennas at the same frequency and at the same time differs from the power ratio between a plurality of pilot signals transmitted from the plurality of antennas at the same frequency and at the same time, whereby the accuracy of channel estimation by a reception device is improved..
Sun Patent Trust

Method and device for transmitting channel state information

The present invention discloses a method and a device for transmitting channel state information, where the method includes: determining, by a first network device according to measurement of a reference signal sent by a second network device, channel state information including a precoding matrix indication pmi and selection information that is used to instruct to select a matrix element in a precoding matrix indicated by the pmi; and sending the channel state information to the second network device. Because the channel state information includes the precoding matrix indication pmi and the selection information, the second network device can determine a precoding matrix for performing precoding, and synthesize a channel precoding matrix applicable to a two-dimensional antenna.
Huawei Technologies Co., Ltd.

Pre-coding in a faster-than-nyquist transmission system

The invention refers to faster than nyquist communication system wherein a set of symbols is conveyed from a transmitter (21) to a receiver (23), wherein the transmitter (21) and the receiver (23) are coupled by means of a transmission channel (22), comprising a precoder (210) adapted for generating a set of precoded symbols from a set of input symbols by performing a matrix operation with a precoding matrix, a pulse filter (212) adapted for generating a transmission signal to be transmitted over the transmission channel (22) as a function of the precoded symbols, a receiving filter (230) adapted for generating a set of sampled symbols as a function of the transmission signal and noise added by the transmission channel, and a decoder (232) adapted for generating a set of decoded symbols as a function of the set of sampled symbols, wherein the elements of the precoding matrix are dependent on a property of the pulse filter (212), the invention further refers to a transmitter, a receiver and corresponding methods, and to a user equipment and a base station.. .
Telefonaktiebolaget Lm Ericsson (publ)

Method, apparatus and communication unit

A method, an apparatus and a communication unit for generating precoding feedback information in a multiple frequency radio transmission system are disclosed. A rank for precoding matrices, wherein the rank is constant over the multiple frequencies, is selected and a plurality of precoding matrices having the selected rank are selected.
Intel Deutschland Gmbh

Wireless transmission precoding

Embodiments of the present disclosure describe systems and methods for precoding wireless transmissions. Various embodiments may precode rank-one or rank-two wireless transmissions onto four antennas.
Intel Ip Corporation

Uplink control information transmission methods for carrier aggregation

A method and apparatus for transmitting uplink control information (uci) for long term evolution-advanced (lte-a) using carrier aggregation is disclosed. Methods for uci transmission in the uplink control channel, uplink shared channel or uplink data channel are disclosed.
Interdigital Patent Holdings, Inc.

Feedback channel transmission and detection in multi antenna wireless communication systems

A method by a network node in a communications system includes determining a codebook subset restriction indicating a reduced set of precoding matrices out of an original set of precoding matrices in an original codebook. The full set of precoding matrix indicator, pmi, bits is used to identify the original set of precoding matrices in the original codebook.
Telefonaktiebolaget Lm Ericsson (publ)

Transmission method, transmission apparatus, reception method and reception apparatus

All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted..
Sun Patent Trust

Interference suppression method and apparatus

Embodiments of the present invention provide an interference suppression method and apparatus. The method includes: determining a precoding matrix according to a channel fading matrix, where the channel fading matrix is an n×m matrix, m is a quantity of antennas of a transmit end candidate device, n is a quantity of antennas of a receive end device, and each element in the channel fading matrix represents channel fading that occurs when each antenna of the transmit end candidate device transmits a signal to each antenna of the receive end device; acquiring a receiving base vector according to the precoding matrix, signal power of the transmit end candidate device, and a channel fading matrix from a signal to the receive end device; and determining receiving subspace according to the receiving base vector and receiving, in the receiving subspace, a signal sent by a transmit end selected device..
Huawei Technologies Co., Ltd.

Method for transmitting channel state information and apparatus therefor

A method for reporting, by a ue, a downlink channel state in a wireless communication system according to an embodiment of the present invention includes: receiving a vertical precoding matrix indicator (pmi) to be used to calculate the downlink channel state; calculating a value of the downlink channel state using the received vertical pmi; and reporting the calculated downlink channel state value to an enb, wherein the received vertical pmi is used from a later subframe between a subframe in which the vertical pmi is received and a subframe preceding a subframe in which the calculated downlink channel state value is reported by the number of subframes necessary to calculate the downlink channel state value using the received vertical pmi.. .
Lg Electronics Inc.

Feedback signaling error detection and checking in mimo wireless communication systems

A method of feedback in a wireless transmit receive unit includes providing a precoding matrix index (pmi), error checking the (pmi) to produce an error check (ec) bit, coding the pmi and the ec bit and transmitting the coded pmi and ec bit.. .
Interdigital Technology Corporation

Method and performing effective feedback in wireless communication system supporting multiple antennas

A method for transmitting channel status information (csi) of downlink multi-carrier transmission includes generating the csi including at least one of a rank indicator (ri), a first precoding matrix index (pmi), a second pmi and a channel quality indicator (cqi) for one or more downlink carriers, the cqi being calculated based on precoding information determined by a combination of the first and second pmis, determining, when two or more csis collide with one another in one uplink subframe of one uplink carrier, a csi to be transmitted on the basis of priority, and transmitting the determined csi over a uplink channel. If a csi including an ri or a wideband first pmi collides with a csi including a wideband cqi or a subband cqi, the csi including a wideband cqi or a subband cqi has low priority and is dropped..
Lg Electronics Inc.

Mcs/pmi/ri selection and coding/interleaving mechanism for bursty interference and puncturing handling

Bursty interference or puncturing may be identified, either by a user equipment (ue) or by a base station. In response, a protection scheme may be applied to protect communications from the bursty interference or puncturing.
Qualcomm Incorporated



Precoding Matrix topics:
  • Precoding Matrix
  • Communication System
  • Base Station
  • Coding Method
  • Serving Cell
  • Spatial Streams
  • Wireless Communication Device
  • Error Detection
  • Feedback Signal
  • Transmitter
  • Antenna Array
  • Phase Shift
  • Communications
  • Channel Status
  • Modulation


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