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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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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 ...
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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, ...
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 ...
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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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Spatial multiplexing power save learning mode
Apple Inc.
December 08, 2016 - N°20160360489

Apparatus and methods for configuring wireless circuitry of a wireless communication device associated with a wireless local area network (wlan) access point (ap) to use a reduced power consumption mode are disclosed. While associated with a multiple-input multiple-output (mimo) wlan ap and operating in a mimo mode that includes at least two spatial streams for communication with multiple radio frequency (...
Method and apparatus for mimo wlan power optimization
Apple Inc.
December 08, 2016 - N°20160359661

Apparatus and methods for configuring wireless circuitry of a wireless device to optimize power consumption based on operating states of the wireless device are disclosed. When associating with or while associated with a multiple-input multiple-output (mimo) capable wireless local area network (wlan) access point (ap), the wireless device configures the wireless circuitry to use a mimo mode that includes at ...
Methods and apparatus for wlan transmission
Marvell World Trade Ltd.
November 24, 2016 - N°20160344511

A modulation coding scheme (mcs) is selected i) from a first set of mcss when the phy data unit is to be transmitted using a first channel bandwidth, and ii) from a second set of mcss when the phy data unit is to be transmitted using a second channel bandwidth. The first set of mcss corresponds to i) a number ...
Modified cts or block acknowledgement for coexistence
Qualcomm Incorporated
November 10, 2016 - N°20160330759

Methods, systems, and devices are described for wireless communication. A wireless device may identify an upcoming interference period, determine a receive end time based on when the interference period will begin to disrupt incoming messages, and transmit a scheduling outlook message to a transmitter to schedule around the interference in response to receiving a packet (request-to-send (rts) or data). The ...
Apparatus, system and method of multi-user wireless communication
Intel Ip Corporation
November 03, 2016 - N°20160323058

Some demonstrative embodiments include apparatuses, devices, systems and methods of multi-user (mu) wireless communication. For example, a wireless station may generate a mu physical layer convergence protocol (plcp) protocol data unit (ppdu) including a header field and a plurality of spatial streams (sss) of media access control (mac) protocol data units (mpdus) to a plurality of users, the header field ...
Tone block and spatial stream allocation
Marvell World Trade Ltd.
September 29, 2016 - N°20160285600

A method is described. A block allocation that indicates a plurality of contiguous tone blocks of a wireless local area network communication channel is selected for a multi-user, multiple input multiple output (mu-mimo) orthogonal frequency division multiple access (ofdma) data unit. A contiguous tone block corresponds to a respective device set having at least one communication device. Respective spatial stream ...
Opportunistic peak-to-average power ratio reduction in mu-mimo wireless communication
Mediatek Inc.
September 22, 2016 - N°20160277227

Methods and apparatuses pertaining to opportunistic peak-to-average power ratio reduction in multi-user multi-input and multi-output (mu-mimo) wireless communication are described. A method may involve determining whether a length of a payload of each spatial stream of a plurality of spatial streams is less than a predetermined length for transmission of each spatial stream of the plurality of spatial streams. The ...
Methods and apparatus for channel state information sounding and feedback
Qualcomm Incorporated
September 08, 2016 - N°20160262051

Methods and apparatus for channel state information feedback are provided. In various aspects, a message is transmitted requesting channel feedback information. In some aspects, a first portion of the message is transmitted according to a first or second, and contains first information intended for a first or second set of wireless communication devices compatible with the first or second format ...
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