Patents by Inventor Saeed Ghassemzadeh
Saeed Ghassemzadeh 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).
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Publication number: 20200244385Abstract: The gains with non-orthogonal multiple access (NOMA) for uplink data transmissions can be high when chosen codes are orthogonal. However, when codes are non-orthogonal, the gains can be low. NOMA can be used when there is more than one mobile device using the same resources. Since orthogonal codes cannot be possible for every length, codes which have low cross-correlation properties can be used. However, when there are a large number of mobile devices using the same resources, the cross-correlation between the codes can cause interference to the mobile devices. Reducing the gains of a NOMA system can reduce the overall throughput. Thus, transmitting data on the same resources in a NOMA can occur in spite of the interference to the UEs transmitting data on the same resources. Therefore, a non-orthogonal multiple access design for a 5G network can mitigate interference.Type: ApplicationFiled: April 16, 2020Publication date: July 30, 2020Inventors: SaiRamesh Nammi, Arunabha Ghosh, Saeed Ghassemzadeh
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Patent number: 10666374Abstract: The gains with non-orthogonal multiple access (NOMA) for uplink data transmissions can be high when chosen codes are orthogonal. However, when codes are non-orthogonal, the gains can be low. NOMA can be used when there is more than one mobile device using the same resources. Since orthogonal codes can not be possible for every length, codes which have low cross-correlation properties can be used. However, when there are a large number of mobile devices using the same resources, the cross-correlation between the codes can cause interference to the mobile devices. Reducing the gains of a NOMA system can reduce the overall throughput. Thus, transmitting data on the same resources in a NOMA can occur in spite of the interference to the UEs transmitting data on the same resources. Therefore, a non-orthogonal multiple access design for a 5G network can mitigate interference.Type: GrantFiled: May 11, 2018Date of Patent: May 26, 2020Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: SaiRamesh Nammi, Arunabha Ghosh, Saeed Ghassemzadeh
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Publication number: 20200162174Abstract: An example method may include a processing system of a channel sounding receiver having a processor receiving from a base station, at a location, a channel sounding waveform via a plurality of carriers, sampling the channel sounding waveform via the plurality of carriers to generate a plurality of per-carrier time domain sample sets, and processing the plurality of per-carrier time domain sample sets via a plurality of discrete Fourier transform modules to provide a plurality of per-carrier frequency domain sample sets. The method may further include the processing system aligning the plurality of per-carrier frequency domain sample sets in gain and phase to provide a combined frequency domain sample set and measuring a channel property at the location based upon the combined frequency domain sample set.Type: ApplicationFiled: January 27, 2020Publication date: May 21, 2020Inventors: Aditya Chopra, Saeed Ghassemzadeh, Arunabha Ghosh, Ralf Bendlin, Salam Akoum, SaiRamesh Nammi, Thomas Novlan, Xiaoyi Wang
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Patent number: 10638340Abstract: An example method may include a processing system of a base station having a processor assigning at least one resource block of a physical downlink shared channel for a transmission of a channel sounding waveform and transmitting the channel sounding waveform via the at least one resource block. Another example method may include a processing system of a channel sounding receiver receiving from a base station, at a location, a channel sounding waveform via at least one resource block of a physical downlink shared channel, and measuring a channel property at the location based upon the channel sounding waveform that is received.Type: GrantFiled: August 15, 2017Date of Patent: April 28, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Arunabha Ghosh, Ralf Bendlin, Saeed Ghassemzadeh, Thomas Novlan, Salam Akoum, SaiRamesh Nammi, Xiaoyi Wang
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Patent number: 10602370Abstract: An example method may include a processing system of a device having a processor capturing, at a first position comprising a first location and a first spatial orientation of the device, a first measurement of a performance indicator based upon at least a first wireless signal from a base station of a beamformed wireless communication network and capturing, at a second position comprising a second location and a second spatial orientation of the device, a second measurement of the performance indicator based upon at least a second wireless signal from the base station of the beamformed wireless communication network. The method may include the processing system selecting a position for a deployment of the device based upon the first measurement of the performance indicator and the second measurement of the performance indicator and providing at least one instruction for the deployment of the device at the position that is selected.Type: GrantFiled: October 1, 2018Date of Patent: March 24, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Ralf Bendlin, Saeed Ghassemzadeh, Aditya Chopra, Arunabha Ghosh
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Patent number: 10547397Abstract: An example method may include a processing system of a channel sounding receiver having a processor receiving from a base station, at a location, a channel sounding waveform via a plurality of carriers, sampling the channel sounding waveform via the plurality of carriers to generate a plurality of per-carrier time domain sample sets, and processing the plurality of per-carrier time domain sample sets via a plurality of discrete Fourier transform modules to provide a plurality of per-carrier frequency domain sample sets. The method may further include the processing system aligning the plurality of per-carrier frequency domain sample sets in gain and phase to provide a combined frequency domain sample set and measuring a channel property at the location based upon the combined frequency domain sample set.Type: GrantFiled: December 22, 2017Date of Patent: January 28, 2020Assignee: AT&T Intellectual Property I, L.P.Inventors: Aditya Chopra, Saeed Ghassemzadeh, Arunabha Ghosh, Ralf Bendlin, Salam Akoum, SaiRamesh Nammi, Thomas Novlan, Xiaoyi Wang
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Publication number: 20200014518Abstract: Various embodiments disclosed herein provide for switching between non-orthogonal and orthogonal multiple access protocols dynamically. A base station device can determine whether a user equipment device on a communication link should use a non-orthogonal multiple access system or an orthogonal multiple access system based on one or more attributes of the communication link, and send an indication of the selection to the user equipment device. The base station device can indicate the selection using a spreading factor parameter that is either equal to one or greater than one. If the spreading factor parameter is equal to one, that can indicate to the user equipment device to use an orthogonal multiple access system, whereas if the spreading factor parameter is greater than one, that can indicate to the user equipment device to use a non-orthogonal multiple access system.Type: ApplicationFiled: September 18, 2019Publication date: January 9, 2020Inventors: SaiRamesh Nammi, Saeed Ghassemzadeh, Arunabha Ghosh
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Publication number: 20200014475Abstract: An example device may include at least three phased array antennas controllable to provide respective receive beams steerable in azimuth and elevation, where faces of the phased array antennas are arranged to provide a receive beam coverage 360 degrees in azimuth, and at least three radio frequency front ends to receive channel sounding waveforms from a fifth generation base station of a cellular network via the respective receive beams and to generate baseband signals from the channel sounding waveforms. The device may include a processing system including at least one processor in communication with the radio frequency front ends to steer the respective receive beams via instructions to the radio frequency front ends, receive the baseband signals from the radio frequency front ends, determine a plurality of measurements of at least one wireless channel parameter based upon the baseband signals, and record locations and spatial orientation information for the measurements.Type: ApplicationFiled: September 16, 2019Publication date: January 9, 2020Inventors: Aditya Chopra, Arunabha Ghosh, Saeed Ghassemzadeh, Salam Akoum, Xiaoyi Wang
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Publication number: 20190380051Abstract: An example device includes antennas to receive wireless signals from a wireless transmitter and to output radio frequency signals based upon the wireless signals that are received, low noise amplifiers coupled to the antennas to amplify the radio frequency signals, and a receiver stage to generate, based upon the radio frequency signals, digital representations of the wireless signals that are received via the antennas and to determine a measure a wireless channel parameter from the digital representations of the wireless signals.Type: ApplicationFiled: August 22, 2019Publication date: December 12, 2019Inventors: Saeed Ghassemzadeh, Arunabha Ghosh
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Publication number: 20190349169Abstract: Various embodiments disclosed herein provide for switching between non-orthogonal and orthogonal multiple access protocols dynamically. A base station device can determine whether a user equipment device on a communication link should use a non-orthogonal multiple access system or an orthogonal multiple access system based on one or more attributes of the communication link, and send an indication of the selection to the user equipment device. The base station device can indicate the selection using a spreading factor parameter that is either equal to one or greater than one. If the spreading factor parameter is equal to one, that can indicate to the user equipment device to use an orthogonal multiple access system, whereas if the spreading factor parameter is greater than one, that can indicate to the user equipment device to use a non-orthogonal multiple access system.Type: ApplicationFiled: May 11, 2018Publication date: November 14, 2019Inventors: SaiRamesh Nammi, Saeed Ghassemzadeh, Arunabha Ghosh
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Publication number: 20190349110Abstract: The gains with non-orthogonal multiple access (NOMA) for uplink data transmissions can be high when chosen codes are orthogonal. However, when codes are non-orthogonal, the gains can be low. NOMA can be used when there is more than one mobile device using the same resources. Since orthogonal codes can not be possible for every length, codes which have low cross-correlation properties can be used. However, when there are a large number of mobile devices using the same resources, the cross-correlation between the codes can cause interference to the mobile devices. Reducing the gains of a NOMA system can reduce the overall throughput. Thus, transmitting data on the same resources in a NOMA can occur in spite of the interference to the UEs transmitting data on the same resources. Therefore, a non-orthogonal multiple access design for a 5G network can mitigate interference.Type: ApplicationFiled: May 11, 2018Publication date: November 14, 2019Inventors: SaiRamesh Nammi, Arunabha Ghosh, Saeed Ghassemzadeh
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Patent number: 10461910Abstract: Various embodiments disclosed herein provide for switching between non-orthogonal and orthogonal multiple access protocols dynamically. A base station device can determine whether a user equipment device on a communication link should use a non-orthogonal multiple access system or an orthogonal multiple access system based on one or more attributes of the communication link, and send an indication of the selection to the user equipment device. The base station device can indicate the selection using a spreading factor parameter that is either equal to one or greater than one. If the spreading factor parameter is equal to one, that can indicate to the user equipment device to use an orthogonal multiple access system, whereas if the spreading factor parameter is greater than one, that can indicate to the user equipment device to use a non-orthogonal multiple access system.Type: GrantFiled: May 11, 2018Date of Patent: October 29, 2019Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: SaiRamesh Nammi, Saeed Ghassemzadeh, Arunabha Ghosh
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Patent number: 10432330Abstract: An example method may include a processing system of a base station having a processor selecting a blank resource of a time and frequency resource grid of the base station for a transmission of a channel sounding waveform and transmitting the channel sounding waveform via the blank resource. Another example method may include a processing system of a channel sounding receiver receiving at a location, from a base station, a channel sounding waveform via a blank resource of a time and frequency resource grid of the base station, and measuring a channel property at the location based upon the channel sounding waveform.Type: GrantFiled: August 15, 2017Date of Patent: October 1, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Arunabha Ghosh, Ralf Bendlin, Saeed Ghassemzadeh, Thomas Novlan, Salam Akoum, SaiRamesh Nammi, Xiaoyi Wang
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Patent number: 10419138Abstract: An example device may include at least three phased array antennas controllable to provide respective receive beams steerable in azimuth and elevation, where faces of the phased array antennas are arranged to provide a receive beam coverage 360 degrees in azimuth, and at least three radio frequency front ends to receive channel sounding waveforms from a fifth generation base station of a cellular network via the respective receive beams and to generate baseband signals from the channel sounding waveforms. The device may include a processing system including at least one processor in communication with the radio frequency front ends to steer the respective receive beams via instructions to the radio frequency front ends, receive the baseband signals from the radio frequency front ends, determine a plurality of measurements of at least one wireless channel parameter based upon the baseband signals, and record locations and spatial orientation information for the measurements.Type: GrantFiled: December 22, 2017Date of Patent: September 17, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Aditya Chopra, Arunabha Ghosh, Saeed Ghassemzadeh, Salam Akoum, Xiaoyi Wang
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Patent number: 10397811Abstract: An example device includes antennas to receive wireless signals from a wireless transmitter and to output radio frequency signals based upon the wireless signals that are received, low noise amplifiers coupled to the antennas to amplify the radio frequency signals, and a receiver stage to generate, based upon the radio frequency signals, digital representations of the wireless signals that are received via the antennas and to determine a measure a wireless channel parameter from the digital representations of the wireless signals.Type: GrantFiled: October 14, 2016Date of Patent: August 27, 2019Assignee: AT&T Intellectual Property I, L.P.Inventors: Saeed Ghassemzadeh, Arunabha Ghosh
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Publication number: 20190199457Abstract: An example device may include at least three phased array antennas controllable to provide respective receive beams steerable in azimuth and elevation, where faces of the phased array antennas are arranged to provide a receive beam coverage 360 degrees in azimuth, and at least three radio frequency front ends to receive channel sounding waveforms from a fifth generation base station of a cellular network via the respective receive beams and to generate baseband signals from the channel sounding waveforms. The device may include a processing system including at least one processor in communication with the radio frequency front ends to steer the respective receive beams via instructions to the radio frequency front ends, receive the baseband signals from the radio frequency front ends, determine a plurality of measurements of at least one wireless channel parameter based upon the baseband signals, and record locations and spatial orientation information for the measurements.Type: ApplicationFiled: December 22, 2017Publication date: June 27, 2019Inventors: Aditya Chopra, Arunabha Ghosh, Saeed Ghassemzadeh, Salam Akoum, Xiaoyi Wang
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Publication number: 20190199456Abstract: An example method may include a processing system of a channel sounding receiver having a processor receiving from a base station, at a location, a channel sounding waveform via a plurality of carriers, sampling the channel sounding waveform via the plurality of carriers to generate a plurality of per-carrier time domain sample sets, and processing the plurality of per-carrier time domain sample sets via a plurality of discrete Fourier transform modules to provide a plurality of per-carrier frequency domain sample sets. The method may further include the processing system aligning the plurality of per-carrier frequency domain sample sets in gain and phase to provide a combined frequency domain sample set and measuring a channel property at the location based upon the combined frequency domain sample set.Type: ApplicationFiled: December 22, 2017Publication date: June 27, 2019Inventors: Aditya Chopra, Saeed Ghassemzadeh, Arunabha Ghosh, Ralf Bendlin, Salam Akoum, SaiRamesh Nammi, Thomas Novlan, Xiaoyi Wang
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Publication number: 20190116500Abstract: An example method may include a processing system of a device having a processor capturing, at a first position comprising a first location and a first spatial orientation of the device, a first measurement of a performance indicator based upon at least a first wireless signal from a base station of a beamformed wireless communication network and capturing, at a second position comprising a second location and a second spatial orientation of the device, a second measurement of the performance indicator based upon at least a second wireless signal from the base station of the beamformed wireless communication network. The method may include the processing system selecting a position for a deployment of the device based upon the first measurement of the performance indicator and the second measurement of the performance indicator and providing at least one instruction for the deployment of the device at the position that is selected.Type: ApplicationFiled: October 1, 2018Publication date: April 18, 2019Inventors: Ralf Bendlin, Saeed Ghassemzadeh, Aditya Chopra, Arunabha Ghosh
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Publication number: 20190116506Abstract: An example method may include a processing system of a cellular network having a processor receiving, from a mobile endpoint device, a measurement of a performance indicator, a location, and spatial orientation information, the measurement of the performance indicator based upon at least one wireless signal from a base station of the cellular network, and adjusting at least one aspect of the cellular network in response to the measurement of the performance indicator, the location, and the spatial orientation information. Another example method may include a processing system of a mobile endpoint device having a processor receiving a wireless signal from a base station of a cellular network, capturing a measurement of a performance indicator based upon the wireless signal, recording a location and spatial orientation information, and transmitting to the cellular network the measurement of the performance indicator, the location, and the spatial orientation information.Type: ApplicationFiled: October 13, 2017Publication date: April 18, 2019Inventors: Ralf Bendlin, Thomas Novlan, Arunabha Ghosh, Saeed Ghassemzadeh
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Publication number: 20190059064Abstract: A method may include a processing system of a channel sounding receiver having a processor detecting a synchronization signal within a time and frequency resource grid of a base station and measuring a channel property at a first location based upon the synchronization signal that is received at the first location. The method may further include the processing system receiving at a second location, from the base station, the synchronization signal, measuring a channel property at the second location based upon the synchronization signal that is received at the second location, and selecting between the first location and the second location for a deployment of a customer premises equipment based upon the channel property at the first location and the channel property at the second location.Type: ApplicationFiled: August 15, 2017Publication date: February 21, 2019Inventors: ARUNABHA GHOSH, Ralf Bendlin, Saeed Ghassemzadeh, Thomas Novlan, Salam Akoum, SaiRamesh Nammi, Xiaoyi Wang