Patents by Inventor Hassan Afkhami
Hassan Afkhami 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: 20180343068Abstract: This disclosure provides methods, systems, and apparatuses supporting power line communication (PLC) interference mitigation for digital subscriber line (DSL) networks. A DSL device of a DSL network may detect interference on a set of DSL lines caused by multiple PLC devices of a PLC network. The DSL device may measure the aggregate interference from the multiple PLC devices without interrupting communication of the PLC devices. The measured aggregate network interference may be used to determine a mitigation parameter to be applied to each PLC device of the PLC network and the determined mitigation parameter may be adjusted based on subsequent measurements of aggregate network interference or of interference caused by an individual PLC device.Type: ApplicationFiled: May 23, 2017Publication date: November 29, 2018Inventor: Hassan Afkhami
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Patent number: 9998174Abstract: This disclosure provides systems, methods, and apparatus for wireline communication. A digital subscriber line (DSL) receiver may detect one or more power line communication (PLC) sound packets and measure PLC signal leakage on a set of DSL lines based on the detected sound packets. For example, PLC sound packets may be transmitted by PLC devices within a PLC network, and impulse noise received on the set of DSL lines corresponding to the transmitted PLC sound packet may be detected by a DSL receiver (such as a consumer premises equipment (CPE)). The DSL receiver may measure PLC signal leakage on the set of DSL lines based on the detected PLC sound packets. In some cases, the PLC sound packets may be detected based on a duration, a position, or an arrival time of a PLC sound packet.Type: GrantFiled: October 18, 2016Date of Patent: June 12, 2018Assignee: Ikanos Communications, Inc.Inventors: Laurent Alloin, Hassan Afkhami, Vinay Kumar Chapala
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Publication number: 20180109288Abstract: This disclosure provides systems, methods, and apparatus for wireline communication. A digital subscriber line (DSL) receiver may detect one or more power line communication (PLC) sound packets and measure PLC signal leakage on a set of DSL lines based on the detected sound packets. For example, PLC sound packets may be transmitted by PLC devices within a PLC network, and impulse noise received on the set of DSL lines corresponding to the transmitted PLC sound packet may be detected by a DSL receiver (such as a consumer premises equipment (CPE)). The DSL receiver may measure PLC signal leakage on the set of DSL lines based on the detected PLC sound packets. In some cases, the PLC sound packets may be detected based on a duration, a position, or an arrival time of a PLC sound packet.Type: ApplicationFiled: October 18, 2016Publication date: April 19, 2018Inventors: Laurent Alloin, Hassan Afkhami, Vinay Kumar Chapala
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Publication number: 20170366361Abstract: Embodiments include systems and methods for performing transmit power management in a wire-line communication system. A processor of a wire-line communication system may determine one or more signal characteristics of a radio frequency (RF) signal received by the wire-line communication system. The processor may characterize the received signal based on the one or more signal characteristics. The processor may determine whether the received RF signal is a valid signal based on the characterization of the received signal. The processor may determine a transmit power for a signal from the wire-line communication system based on the characterization of the received RF signal when the received RF signal is a valid signal.Type: ApplicationFiled: June 21, 2016Publication date: December 21, 2017Inventors: Hassan Afkhami, Purva Rajoktia
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Patent number: 9577923Abstract: An advanced gateway for multiple broadband access can include a plurality of broadband network interfaces. The advanced gateway can route data from a local network interface to a broadband network interface when a performance attribute of the broadband network meets or exceeds a data characteristic of data conveyed through the local network interface. In another embodiment, a first advanced gateway can send a portion of data received through the local network interface to a second advanced gateway when performance attributes associated with the first advanced gateway cannot meet or exceed a data characteristic of data received through a local network interface of the first advanced gateway. In yet another embodiment, an advanced gateway can receive commands from service providers, determine a recipient device for the command and forward the command to the recipient device through a device interface coupled to the recipient device.Type: GrantFiled: March 14, 2013Date of Patent: February 21, 2017Assignee: QUALCOMM IncorporatedInventors: Purva R. Rajkotia, Todd D. Antes, Srinivas Katar, Hassan Afkhami
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Patent number: 9166853Abstract: In some embodiments, a method includes receiving, at a first device via a channel of a communication medium, multiple data transmissions, wherein a code rate of multiple code rates is associated with each data transmission of the multiple data transmissions. The method includes determining, based on signal characteristics of the multiple data transmissions, the data transmission from among the multiple data transmissions having a preferred physical data rate. The method also includes setting a code rate for the channel for communication from a second device to the first device via the communication medium, to the code rate of the data transmission having the preferred physical data rate.Type: GrantFiled: January 10, 2013Date of Patent: October 20, 2015Assignee: QUALCOMM IncorporatedInventors: Hassan Afkhami, Purva R. Rajkotia, Manjunath Anandarama Krishnam
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Patent number: 9008159Abstract: In some embodiments, a method includes receiving, at a receiver of a first device via a channel of a communication medium, multiple data transmissions. Each data transmission of the multiple data transmissions has a guard interval of multiple guard intervals, wherein the multiple guard intervals have different lengths. The method includes determining, based on signal characteristics of the multiple data transmissions, the data transmission from among the multiple data transmissions having a preferred physical data rate. The method includes setting a length of an adjusted guard interval for the channel for data communication from a transmitter of a second device to the receiver of the first device via the communication medium, to a length of the guard interval for the data transmission having the preferred physical data rate.Type: GrantFiled: January 10, 2013Date of Patent: April 14, 2015Assignee: QUALCOMM IncorporatedInventors: Hassan Afkhami, Purva R. Rajkotia, Manjunath Anandarama Krishnam
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Publication number: 20140269304Abstract: An advanced gateway for multiple broadband access can include a plurality of broadband network interfaces. The advanced gateway can route data from a local network interface to a broadband network interface when a performance attribute of the broadband network meets or exceeds a data characteristic of data conveyed through the local network interface. In another embodiment, a first advanced gateway can send a portion of data received through the local network interface to a second advanced gateway when performance attributes associated with the first advanced gateway cannot meet or exceed a data characteristic of data received through a local network interface of the first advanced gateway. In yet another embodiment, an advanced gateway can receive commands from service providers, determine a recipient device for the command and forward the command to the recipient device through a device interface coupled to the recipient device.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Inventors: Purva R. Rajkotia, Todd D. Antes, Srinivas Katar, Hassan Afkhami
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Publication number: 20140254649Abstract: Rate adaptation in network communications can be determined, at least in part, by bit error rates through network communication channels. Bit error rates can provide an indication of channel conditions and can guide selection of data rate settings by network devices. Relatively good channel conditions can support relatively higher data rates while communication channels with relatively more noise and/or interference can support relatively lower data rates. Transmitted data can be coded with Forward Error Correction codes that can allow determination of bit error rates resulting from transmission. In one embodiment, bit error rates can guide carrier selection when data is transmitted with groups of two or more carriers such as with orthogonal frequency division multiplexing modulation.Type: ApplicationFiled: March 7, 2013Publication date: September 11, 2014Applicant: QUALCOMM INCORPORATEDInventors: Hassan Afkhami, Purva R. Rajkotia, Manjunath Anandarama Krishnam
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Publication number: 20140192846Abstract: In some embodiments, a method includes receiving, at a receiver of a first device via a channel of a communication medium, multiple data transmissions. Each data transmission of the multiple data transmissions has a guard interval of multiple guard intervals, wherein the multiple guard intervals have different lengths. The method includes determining, based on signal characteristics of the multiple data transmissions, the data transmission from among the multiple data transmissions having a preferred physical data rate. The method includes setting a length of an adjusted guard interval for the channel for data communication from a transmitter of a second device to the receiver of the first device via the communication medium, to a length of the guard interval for the data transmission having the preferred physical data rate.Type: ApplicationFiled: January 10, 2013Publication date: July 10, 2014Applicant: QUALCOMM INCORPORATEDInventors: Hassan Afkhami, Purva R. Rajkotia, Manjunath Anandarama Krishnam
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Publication number: 20140192847Abstract: In some embodiments, a method includes receiving, at a first device via a channel of a communication medium, multiple data transmissions, wherein a code rate of multiple code rates is associated with each data transmission of the multiple data transmissions. The method includes determining, based on signal characteristics of the multiple data transmissions, the data transmission from among the multiple data transmissions having a preferred physical data rate. The method also includes setting a code rate for the channel for communication from a second device to the first device via the communication medium, to the code rate of the data transmission having the preferred physical data rate.Type: ApplicationFiled: January 10, 2013Publication date: July 10, 2014Applicant: QUALCOMM INCORPORATEDInventors: Hassan Afkhami, Purva R. Rajkotia, Manjunath Anandarama Krishnam
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Publication number: 20140195637Abstract: A device may determine adapted physical layer transmission properties based upon characteristics of a packet stream to be transmitted via a communications channel. The physical layer transmission properties may comprise an adapted tone map that is associated with an aggressive physical layer throughput capability for UDP traffic, a conservative physical layer throughput capability for TCP traffic, or a dynamically adjusted physical layer throughput rate for mixed traffic. An indication regarding the adapted tone map may be included in a first message, a portion of a physical layer framing protocol, a physical layer control transmission (such as a frame control symbol), or other transmissions such that the receiving device can derive the adapted tone map without significant added overhead.Type: ApplicationFiled: January 10, 2013Publication date: July 10, 2014Applicant: QUALCOMM INCORPORATEDInventors: Ehab Tahir, John Fraser Chappel, Nikolai Kroupetski, Vladimir Vidovic, Hassan Afkhami, Purva R. Rajkotia, Manjunath Anandarama Krishnam