Patents by Inventor Karim Nassiri-Toussi
Karim Nassiri-Toussi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11871367Abstract: Disclosed herein are related to systems and methods for a multiple-input multiple-output (MIMO) communication. In one aspect, during a first time period, a master access point transmits, to a slave access point, information for a joint transmission by the master access point and the slave access point. In one aspect, the slave access point estimates synchronization information for the joint transmission, according to the information for the joint transmission. In one aspect, during a second time period after the first time period, the master access point transmits a portion of a null data packet to a station device. In one aspect, during the second time period, the slave access point transmits the portion of the null data packet to the station device, based on the synchronization information for the joint transmission. In one aspect, the station device determines steering information for the MIMO communication, according to the null data packet.Type: GrantFiled: May 20, 2022Date of Patent: January 9, 2024Assignee: Avago Technologies International Sales Pte. LimitedInventors: Ron Porat, Srinath Puducheri Sundaravaradhan, Karim Nassiri Toussi, Jun Zheng
-
Publication number: 20230413310Abstract: In some aspects, the disclosure is directed to methods and systems for signaling and decoding of punctured sub-bands in a trigger-based PPDU. In one aspect, at least one of the communication interface or the processing circuitry of a wireless communication device is configured to generate a trigger frame that includes signaling indicating that at least one other wireless communication device is allowed to reduce a bandwidth of an allocated resource unit (RU) for transmitting data via a communication channel; transmit, via the communication channel, the trigger frame to at least one other wireless communication device; receive, via the communication channel and from the at least one other wireless communication device, an uplink (UL) orthogonal frequency division multiple access (OFDMA) frame including the data; and process the UL OFDMA frame including the data based on the signaling.Type: ApplicationFiled: September 6, 2023Publication date: December 21, 2023Applicant: Avago Technologies International Sales Pte. LimitedInventors: Ron Porat, Karim Nassiri Toussi, Srinath Puducheri Sundaravaradhan, Sundaram Vanka
-
Patent number: 11792834Abstract: In some aspects, the disclosure is directed to methods and systems for signaling and decoding of punctured sub-bands in a trigger-based PPDU. In one aspect, at least one of the communication interface or the processing circuitry of a wireless communication device is configured to generate a trigger frame that includes signaling indicating that at least one other wireless communication device is allowed to reduce a bandwidth of an allocated resource unit (RU) for transmitting data via a communication channel; transmit, via the communication channel, the trigger frame to at least one other wireless communication device; receive, via the communication channel and from the at least one other wireless communication device, an uplink (UL) orthogonal frequency division multiple access (OFDMA) frame including the data; and process the UL OFDMA frame including the data based on the signaling.Type: GrantFiled: February 8, 2021Date of Patent: October 17, 2023Assignee: Avago Technologies International Sales Pte. LimitedInventors: Ron Porat, Karim Nassiri Toussi, Srinath Puducheri Sundaravaradhan, Sundaram Vanka
-
Publication number: 20220279465Abstract: Disclosed herein are related to systems and methods for a multiple-input multiple-output (MIMO) communication. In one aspect, during a first time period, a master access point transmits, to a slave access point, information for a joint transmission by the master access point and the slave access point. In one aspect, the slave access point estimates synchronization information for the joint transmission, according to the information for the joint transmission. In one aspect, during a second time period after the first time period, the master access point transmits a portion of a null data packet to a station device. In one aspect, during the second time period, the slave access point transmits the portion of the null data packet to the station device, based on the synchronization information for the joint transmission. In one aspect, the station device determines steering information for the MIMO communication, according to the null data packet.Type: ApplicationFiled: May 20, 2022Publication date: September 1, 2022Inventors: Ron PORAT, Srinath PUDUCHERI SUNDARAVARADHAN, Karim NASSIRI TOUSSI, Jun ZHENG
-
Patent number: 11363549Abstract: Disclosed herein are related to systems and methods for a multiple-input multiple-output (MIMO) communication. In one aspect, during a first time period, a master access point transmits, to a slave access point, information for a joint transmission by the master access point and the slave access point. In one aspect, the slave access point estimates synchronization information for the joint transmission, according to the information for the joint transmission. In one aspect, during a second time period after the first time period, the master access point transmits a portion of a null data packet to a station device. In one aspect, during the second time period, the slave access point transmits the portion of the null data packet to the station device, based on the synchronization information for the joint transmission. In one aspect, the station device determines steering information for the MIMO communication, according to the null data packet.Type: GrantFiled: August 26, 2019Date of Patent: June 14, 2022Assignee: Avago Technologies International Sales Pte. LimitedInventors: Ron Porat, Srinath Puducheri Sundaravaradhan, Karim Nassiri Toussi, Jun Zheng
-
Publication number: 20210274507Abstract: In some aspects, the disclosure is directed to methods and systems for signaling and decoding of punctured sub-bands in a trigger-based PPDU. In one aspect, at least one of the communication interface or the processing circuitry of a wireless communication device is configured to generate a trigger frame that includes signaling indicating that at least one other wireless communication device is allowed to reduce a bandwidth of an allocated resource unit (RU) for transmitting data via a communication channel; transmit, via the communication channel, the trigger frame to at least one other wireless communication device; receive, via the communication channel and from the at least one other wireless communication device, an uplink (UL) orthogonal frequency division multiple access (OFDMA) frame including the data; and process the UL OFDMA frame including the data based on the signaling.Type: ApplicationFiled: February 8, 2021Publication date: September 2, 2021Inventors: Ron Porat, Karim Nassiri Toussi, Srinath Puducheri Sundaravaradhan, Sundaram Vanka
-
Patent number: 10797928Abstract: Disclosed herein are related to systems and methods for a multiple-input multiple-output (MIMO) communication. In one aspect, during a first time period, a master access point transmits, to a slave access point, information for a joint transmission by the master access point and the slave access point. In one aspect, the slave access point estimates synchronizing information for the joint transmission, according to the information for the joint transmission. In one aspect, during a second time period after the first time period, the master access point transmits a portion of a steered frame to a station device. In one aspect, the slave access point transmits, during the second time period, the portion of the steered frame to the station device, based on the synchronizing information. In one aspect, the station device decodes the portion of the steered frame to obtain content data in the portion of the steered frame.Type: GrantFiled: August 26, 2019Date of Patent: October 6, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Ron Porat, Srinath Puducheri Sundaravaradhan, Karim Nassiri Toussi, Jun Zheng
-
Publication number: 20200076665Abstract: Disclosed herein are related to systems and methods for a multiple-input multiple-output (MIMO) communication. In one aspect, during a first time period, a master access point transmits, to a slave access point, information for a joint transmission by the master access point and the slave access point. In one aspect, the slave access point estimates synchronizing information for the joint transmission, according to the information for the joint transmission. In one aspect, during a second time period after the first time period, the master access point transmits a portion of a steered frame to a station device. In one aspect, the slave access point transmits, during the second time period, the portion of the steered frame to the station device, based on the synchronizing information. In one aspect, the station device decodes the portion of the steered frame to obtain content data in the portion of the steered frame.Type: ApplicationFiled: August 26, 2019Publication date: March 5, 2020Inventors: Ron PORAT, Srinath PUDUCHERI SUNDARAVARADHAN, Karim NASSIRI TOUSSI, Jun ZHENG
-
Publication number: 20200077351Abstract: Disclosed herein are related to systems and methods for a multiple-input multiple-output (MIMO) communication. In one aspect, during a first time period, a master access point transmits, to a slave access point, information for a joint transmission by the master access point and the slave access point. In one aspect, the slave access point estimates synchronization information for the joint transmission, according to the information for the joint transmission. In one aspect, during a second time period after the first time period, the master access point transmits a portion of a null data packet to a station device. In one aspect, during the second time period, the slave access point transmits the portion of the null data packet to the station device, based on the synchronization information for the joint transmission. In one aspect, the station device determines steering information for the MIMO communication, according to the null data packet.Type: ApplicationFiled: August 26, 2019Publication date: March 5, 2020Inventors: Ron PORAT, Srinath PUDUCHERI SUNDARAVARADHAN, Karim NASSIRI TOUSSI, Jun ZHENG
-
Publication number: 20190327746Abstract: In some aspects, the disclosure is directed to methods and systems for wireless communication. The method includes: determining one or more first subsets of channels within a frequency band, each of the first subsets of channels comprising one or more of a plurality of channels within the frequency band and corresponding to a potential set of one or more channels on which resource units of the frequency band can be allocated for transmissions; determining one or more second subsets of channels from among the first subsets of channels by enforcing an occupancy requirement on the one or more first subsets of channels; and selecting one or more of the second subsets of channels on which to allocate resource units for transmissions.Type: ApplicationFiled: April 24, 2019Publication date: October 24, 2019Inventors: Ron Porat, Sundaram Vanka, Karim Nassiri Toussi
-
Patent number: 9667301Abstract: A wireless transceiver for a wireless local area network (WLAN) including a port evaluator and a port correlator. Transceiver radio frequency “RF” communication ports are configured to couple to at least one of a wired or wireless communication medium. Shared and discrete components form transmit and receive chains each coupled to a corresponding RF communication port for communications with associated transceiver nodes. The port evaluator is coupled to each of the RF communication ports and configured to evaluate the selected communication channel on each of the RF communication ports with respect to each of the plurality of transceiver nodes. The port correlator is coupled to the shared and discrete components and to the port evaluator and configured to correlate each of the transceiver nodes with a corresponding subset of the RF communication ports supporting optimal communications therewith based on the evaluation by the port evaluator.Type: GrantFiled: August 3, 2015Date of Patent: May 30, 2017Assignee: Quantenna Communications Inc.Inventors: Karim Nassiri Toussi, Hossein Dehghan, Bahador Amiri
-
Patent number: 8588193Abstract: Enhanced wireless speeds are obtained using multiple transmission beams. In one example a transmitter sends data packets through an antenna array using multiple spatial beams and a plurality of analog converters. A receiver receives feedback from a remote station, the feedback including a quality measure of data packets received from the transmitter. A processor to controls transmission parameters of the transmitter using the feedback, the processor having a plurality of states, in a first channel analysis state, the processor determining a beam-forming vector for the antenna array, in a second beam search and training state, the processor determining pre-coding coefficients for the data packets, and in a third high rate transmission state, the processor providing pre-coded data packets to the transmitter for transmission, wherein the processor transitions from the third state to the first state upon receiving a reduced quality measure from the remote station.Type: GrantFiled: February 3, 2010Date of Patent: November 19, 2013Assignee: Sibeam, Inc.Inventors: Keangpo Ricky Ho, Jianhan Liu, Guocong Song, Karim Nassiri Toussi, Jeffrey M. Gilbert
-
Patent number: 8457026Abstract: Enhanced wireless speeds are obtained using multiple transmission beams. In one example, a transmitter has a signal processor to receive a plurality of data streams, a plurality of analog converters each coupled to the signal processor to receive the plurality of data streams from the signal processor and to modulate the data streams onto carrier waves, and a plurality of phase shifters each coupled to an analog converter to each receive a modulated stream. A first antenna is coupled to more than one of the plurality of phase shifters to receive the modulated data stream from each phase shifter and transmit it on its respective carrier wave, and a second antenna is coupled to receive at least one modulated data stream and transmit it on its respective carrier wave.Type: GrantFiled: February 3, 2010Date of Patent: June 4, 2013Assignee: Sibeam, Inc.Inventors: Keang-Po Ricky Ho, Jianhan Liu, Guocong Song, Karim Nassiri Toussi, Jeffrey M. Gilbert
-
Patent number: 8170617Abstract: A radio frequency (RF) transmitter is coupled to and controlled by a processor to transmit data. A physical layer circuit is coupled to the RF transmitter to encode and decode between a digital signal and a modulated analog signal. The physical layer circuit comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). In a first embodiment, the LRP circuit generates a LRP packet comprising an LRP transmit power control feedback. In a second embodiment, the LRP and HRP circuit generate a packet comprising a beam-forming phase and magnitude feedback information. In a third embodiment, the LRP and HRP circuit supports up to 64 independent transmit antenna elements.Type: GrantFiled: March 25, 2008Date of Patent: May 1, 2012Assignee: SiBeam, Inc.Inventors: Karim Nassiri-Toussi, Jeffrey M. Gilbert
-
Patent number: 8155712Abstract: A radio frequency (RF) transmitter has a plurality of digitally controlled phased array antennas coupled to and controlled by the processor to transmit data. The processor is to enable one or more antennas to be turned off during a use of the apparatus to reduce a power consumption of the apparatus.Type: GrantFiled: March 22, 2007Date of Patent: April 10, 2012Assignee: SIBEAM, Inc.Inventors: James P. K. Gilb, Jeffrey M. Gilbert, Sheung Li, Karim Nassiri-Toussi
-
Patent number: 8014416Abstract: A radio frequency (RF) transmitter is coupled to and controlled by a processor to transmit data. A physical layer circuit is coupled to the RF transmitter to encode and decode between a digital signal and a modulated analog signal. The physical layer circuit comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). The low rate channels generated by the low rate physical layer circuit (LRP) share a same frequency band as a corresponding high rate channel generated by the high rate physical layer circuit (HRP).Type: GrantFiled: February 13, 2007Date of Patent: September 6, 2011Assignee: Sibeam, Inc.Inventors: Keangpo Ricky Ho, Karim Nassiri-Toussi, Dengwei Fu, Stephen P. Pope, Jeffrey M. Gilbert, Chuen-Shen Shung, Jianhan Liu
-
Patent number: 7982669Abstract: A method and apparatus for adaptive beam-steering are disclosed. In one embodiment, the method comprises performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.Type: GrantFiled: March 26, 2010Date of Patent: July 19, 2011Assignee: Sibeam, Inc.Inventors: Karim Nassiri-Toussi, Jeffrey M. Gilbert, Chuen-Shen Shung, Dmitry M. Cherniavsky
-
Publication number: 20100178884Abstract: A method and apparatus for adaptive beam-steering are disclosed. In one embodiment, the method comprises performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.Type: ApplicationFiled: March 26, 2010Publication date: July 15, 2010Inventors: Karim Nassiri-Toussi, Jeffrey M. Gilbert, Chuen-Shen Shung, Dmitry M. Cherniavsky
-
Patent number: 7710319Abstract: A method and apparatus for adaptive beam-steering are disclosed. In one embodiment, the method comprises performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.Type: GrantFiled: February 13, 2007Date of Patent: May 4, 2010Assignee: SiBeam, Inc.Inventors: Karim Nassiri-Toussi, Jeffrey M. Gilbert, Chuen-Shen Shung, Dmitry M. Cherniavsky
-
Publication number: 20090323563Abstract: A radio frequency (RF) transmitter is coupled to and controlled by a processor to transmit data. A physical layer circuit is coupled to the RF transmitter to encode and decode between a digital signal and a modulated analog signal. The physical layer circuit comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). The low rate channels generated by the low rate physical layer circuit (LRP) share a same frequency band as a corresponding high rate channel generated by the high rate physical layer circuit (HRP).Type: ApplicationFiled: February 13, 2007Publication date: December 31, 2009Inventors: Keangpo Ricky Ho, Karim Nassiri-Toussi, Dengwei Fu, Stephen P. Pope, Jeffrey M. Gilbert, Chuen-Shen Shung, Jianhan Liu