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Spatial Streams

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


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Wireless device and method for iterative decoding for mu-mimo wireless systems
October 05, 2017 - N°20170288747

Embodiments relate to systems, methods, and computer readable media to enable a wireless receiver are described. In one embodiment a wireless receiver includes a channel decoder and a soft-input soft-output multiple-input multiple-output detector (siso mimo detector). The siso mimo detector includes circuitry to generate soft symbol outputs for each of a plurality of received spatial streams, and circuitry to adjust ...
Apparatus, system and method of communicating pilot signals according to a diversity scheme
Intel Corporation
September 14, 2017 - N°20170265217

For example, a wireless station may be configured to map a plurality of data symbols to orthogonal frequency-division multiplexing (ofdm) symbols in a plurality of spatial streams, to may map a plurality of pilot sequences to the ofdm symbols according to a pilot mapping scheme, and to transmit a multi-in-multi-out (mimo) transmission based on the plurality of spatial streams.
Station (sta), access point (ap) and method for communication of control information for uplink transmission
Intel Corporation
September 14, 2017 - N°20170265135

Embodiments of an access point (ap), station (sta) and method for communication of control information for uplink transmission are generally described herein. The ap may transmit a trigger frame (tf) that indicates a resource unit (ru) to be used by an sta for an uplink data transmission. The ap may transmit a downlink data packet that indicates an ru to ...
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Beamforming techniques for single-stream communications
Qualcomm Incorporated
August 03, 2017 - N°20170222706

A method of adjusting single-stream transmissions by a wireless device based on channel state information (csi). The wireless device generates a sounding packet formatted for transmission via multiple spatial streams, and transmits the sounding packet to a receiving device via a single one of the multiple spatial streams. For example, the wireless device may be a single-antenna device. The wireless ...
Method and apparatus for changing operating mode in wireless local area network system
Lg Electronics Inc.
July 20, 2017 - N°20170208580

The present specification suggests a signal processing method for changing an operating mode to configure a ppdu in a wireless local area network (wlan) system. Specifically, a first station receives indication information indicating a change in operating mode that indicates a number of spatial streams and a receiving channel bandwidth that are supported by a second station from the second ...
Apparatus, system and method of communicating according to a transmit space-frequency diversity scheme
Intel Corporation
July 20, 2017 - N°20170207838

For example, a wireless station may be configured to modulate a plurality of data bit sequences into a plurality of data blocks in a frequency domain according to a dual carrier modulation, a data bit sequence of the plurality of data bit sequences to be modulated into first and second consecutive symbols in a data block of the plurality of ...
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Preamble design aspects for high efficiency wireless local area networks
Qualcomm Incorporated
June 22, 2017 - N°20170181130

Methods, apparatuses, and computer readable media for resource allocation signaling in a high efficiency wireless local area network (wlan) are disclosed. A receiver may receive, at a first station, a transmission frame that includes a wlan signaling field decodable by a plurality of stations. The receiver may identify, in a station-specific portion of the wlan signaling field, an order for ...
Method and apparatus for implementing space time processing
Interdigital Technology Corporation
June 08, 2017 - N°20170163383

A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (mcss) or stream-dependent mcss are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An mcs for each data stream is selected independently. The spatial streams are ...
Systems and methods for calculating log-likelihood ratios in a mimo detector
Uurmi Systems Pvt Ltd
June 08, 2017 - N°20170163319

A method and a communication receiver have been described for calculating log-likelihood ratios in a communication receiver. The log-likelihood ratio is calculated for each bit of one or more subsymbols of each of the one or more spatial streams by computing effective noise on one or more spatial streams after considering noise terms resulting from mimo detection estimates of the ...
Nan further availability schedule indications
Apple Inc.
May 04, 2017 - N°20170127464

In some embodiments, one or more wireless stations operate to configure direct communication with neighboring mobile stations, e. G., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to a mechanism for peer devices to transmit availability schedules beyond 512 time units while continuing to minimize communication overhead. In some embodiments, a wireless ...
Wireless station control of wlan receive operating mode change
Apple Inc.
May 04, 2017 - N°20170126461

A wireless local area network station (sta) changes a receiver operating mode (rom) and saves power by influencing when a rom-conforming access point (ap) transmission takes place. The sta evaluates candidate delay regimes after a negotiation exchange with the sta. The sta then instructs the ap of a selected delay regime which the ap is permitted to use when transmitting ...
Method and apparatus for transceiving a data frame in a wireless lan system
Lg Electronics Inc.
March 30, 2017 - N°20170094646

A method of transmitting a data frame by a transmitter in a wlan system is provided. The method includes generating a data block including at least one data units respectively transmitted through at least one or more spatial streams to at least one receiver, transmitting first control information to the at least one receiver, transmitting second control information to each ...
Scalable massive mimo
National Instruments Corporation
March 30, 2017 - N°20170093466

Techniques are disclosed relating to massive mimo communications. In some embodiments, a base station is configured to dynamically adjust the number of processing elements used for mimo signal estimation (e. G., the number of mimo rx chains used for parallel processing). In some embodiments, the number of processing elements may be based on the number of antennas currently being used, ...
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Multi-user multiple-input-multiple-output grouping metrics
Qualcomm Incorporated
March 02, 2017 - N°20170064566

Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a wireless device, beamforming information from a plurality of stations. The beamforming information includes feedback signal-to-noise ratio (snr) values and beamforming feedback matrices. The method further includes determining a metric associated with a candidate group of the plurality of stations ...
Multicast negative acknowledgements using high-energy long-training fields for feedback
Qualcomm Incorporated
March 02, 2017 - N°20170063562

Apparatuses, computer readable media, and methods for multicast negative acknowledgements using high-energy long-training fields for feedback are disclosed. An apparatus of a wireless device is disclosed. The apparatus includes memory and processing circuitry coupled to the memory where the processing circuitry configured to: encode one or more packets in accordance with multicast or broadcast, cause to be transmitted the one ...
Method for setting modulation and coding scheme in wireless ran system and apparatus supporting the ...
Lg Electronics Inc.
February 09, 2017 - N°20170041913

A method and a transmitting station for transmitting data by using a multi-user multiple input multiple output (mu-mimo) in a wireless local area network system are discussed. The method according to an embodiment includes transmitting a physical layer convergence procedure (plcp) protocol data unit (ppdu) including a bundled interface field, a modulation and coding scheme (mcs) index field and a ...
Software access point standby power optimization across an arbitrary number of associated clients
Qualcomm Incorporated
February 09, 2017 - N°20170041869

Systems and methods for wireless communications are disclosed. More particularly, aspects generally relate to an apparatus for wireless communications. The apparatus generally includes an interface for communicating with a plurality of wireless nodes via a plurality of antennas, and a processing system configured to determine a power state of each of the plurality of wireless nodes, and change from a ...
Scalable projection-based mimo detector
Qualcomm Incorporated
February 02, 2017 - N°20170033895

Systems and methods are disclosed that may detect data transmitted using mimo communications. Data may be received, on a wireless channel, as a plurality of spatial streams. A channel matrix characterizing the wireless channel may also be received. The channel matrix may be decomposed into a first sub-channel matrix and a second sub-channel matrix, each having a lower dimension than ...
Techniques for supporting definitions for reduced numbers of spatial streams
Qualcomm Incorporated
January 19, 2017 - N°20170019306

A method and apparatuses for wireless communication are described herein. An exemplary method may include generating a frame comprising: at least one bit indicating an operating bandwidth mode associated with a set of bandwidths, a first field having a value indicating a first number of spatial streams supported by the apparatus associated with a first subset of the set of ...
Uplink or downlink mu-mimo apparatus and method
Intel Ip Corporation
January 05, 2017 - N°20170005709

Generally discussed herein are systems and apparatuses that may include ul or dl using multiple user (mu) multiple input multiple output (mimo) or frequency multiplexing. The disclosure also includes techniques of using the systems and apparatuses. According to an example, a technique may include transmitting, using a plurality of spatial streams or sub-channels, a schedule frame (sch) to a plurality ...
Systems and methods for implementing an ofdma ltf design for wireless network communication
Marvell World Trade Ltd.
December 29, 2016 - N°20160380794

Systems, methods, and apparatuses are disclosed herein for aligning he-ltfs corresponding to a plurality of users by determining a respective number of spatial streams corresponding to each user, determining a highest respective number of spatial streams of the spatial streams, and setting an alignment number of he-ltf symbols to be equal to or larger than the highest respective number of ...
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