Patents by Inventor Mostafa El-Khamy

Mostafa El-Khamy 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: 9467253
    Abstract: A computing system includes: an interface configured to communicate a coordination profile for coordinating a second transmitter device with a first transmitter device; and a unit, coupled to the interface, configured to generate a first encoded message using a message polarization mechanism based on the coordination profile for coordinating the first encoded message with a second encoded message concurrently transmitting through the second transmitter device. A further embodiment of the computing system includes: an interface configured to communicate a receiver signal for representing a first encoded message and a second encoded message coordinated for concurrent transmission; a unit, coupled to the interface, configured to: determine a communication rate associated with the receiver signal, and decode the receiver signal based on a message polarization mechanism and the communication rate for identifying the first encoded message based on a coordination profile corresponding to the communication rate.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: October 11, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hessam Mahdavifar, Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Publication number: 20160285479
    Abstract: A method, apparatus, and chipset are provided for constructing hybrid automatic repeat request (HARQ) rate-compatible polar codes for communication channels. The method includes constructing, in a terminal, a base polar code of length 2n; and determining a sequence of m<2n bits to puncture in the base polar code by testing a predetermined criterion at most (22n+2n)/2?1 times.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 29, 2016
    Inventors: Mostafa EL-KHAMY, Jungwon LEE, Inyup KANG, Hsien-Ping LIN
  • Publication number: 20160241362
    Abstract: Apparatuses (including user equipment (UE) and modem chips for UEs), systems, and methods for UE downlink Hybrid Automatic Repeat reQuest (HARQ) buffer memory management are described. In one method, the entire UE DL HARQ buffer memory space is pre-partitioned according to the number and capacities of the UE's active carrier components. In another method, the UE DL HARQ buffer is split between on-chip and off-chip memory so that each partition and sub-partition is allocated between the on-chip and off-chip memories in accordance with an optimum ratio.
    Type: Application
    Filed: September 8, 2015
    Publication date: August 18, 2016
    Inventors: Mostafa EL-KHAMY, Arvind YEDLA, SangHyuck HA, Hyunsang CHO, lnyup KANG
  • Publication number: 20160241355
    Abstract: An apparatus and method of constructing a universal polar code is provided. The apparatus includes a first function block configured to polarize and degrade a class of channels Wj to determine a probability of error Pe,j of each bit-channel of Wj, wherein j?{1, 2, . . . , s}, in accordance with a bit-channel index i; a second function block configured to determine a probability of error Pe(i) for the universal polar code for each bit-channel index i; a third function block configured to sort the Pe(i); and a fourth function block configured to determine a largest number k of bit-channels such that a sum of corresponding k bit-channel error probabilities Pe(i) is less than or equal to a target frame error rate Pt for the universal polar code, wherein the indices corresponding to the k smallest Pe(i) are good bit-channels for the universal polar code.
    Type: Application
    Filed: August 27, 2015
    Publication date: August 18, 2016
    Inventors: Hessam Mahdavifar, Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Patent number: 9386541
    Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference and perform a self-calibration process.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: July 5, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Mehmet Yavuz, Farhad Meshkati, Mostafa El-Khamy, Sanjiv Nanda
  • Patent number: 9362956
    Abstract: A concatenated encoder is provided that includes an outer encoder, a symbol interleaver and a polar inner encoder. The outer encoder is configured to encode a data stream using an outer code to generate outer codewords. The symbol interleaver is configured to interleave symbols of the outer codewords and generate a binary stream. The polar inner encoder is configured to encode the binary stream using a polar inner code to generate an encoded stream. A concatenated decoder is provided that includes a polar inner decoder, a symbol de-interleaver and an outer decoder. The polar inner decoder is configured to decode an encoded stream using a polar inner code to generate a binary stream. The symbol de-interleaver is configured to de-interleave symbols in the binary stream to generate outer codewords. The outer decoder is configured to decode the outer codewords using an outer code to generate a decoded stream.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 7, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hessam Mahdavifar, Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Publication number: 20160088576
    Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference and perform a self-calibration process.
    Type: Application
    Filed: April 23, 2014
    Publication date: March 24, 2016
    Applicant: QUALCOMM Incorporated
    Inventors: Mehmet Yavuz, Farhad Meshkati, Mostafa El-Khamy, Sanjiv Nanda
  • Publication number: 20160065245
    Abstract: A electronic system includes: a support chip configured to receive an input code stream; a circular Viterbi mechanism, coupled to the support chip, configured to: generate a final path metric for the input code stream, store intermediate path metrics at the repetition depth, generate a repetition path metric for the input code stream, and calculate a soft correlation metric based on the final path metric, the repetition path metric, and the intermediate path metrics.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 3, 2016
    Inventors: Marcel Nassar, Mostafa El-Khamy, Inyup Kang, Jungwon Lee
  • Publication number: 20150349909
    Abstract: A computing system includes: a communication unit configured to: determine a relaxed coding profile including a polar-processing range for processing content data over a bit channel; process the content data based on a total polarization level being within the polar-processing range, the polar-processing range for controlling a polar processing mechanism or a portion therein corresponding to the bit channel for the content data; and an inter-device interface, coupled to the communication unit, configured to communicate the content data.
    Type: Application
    Filed: October 24, 2014
    Publication date: December 3, 2015
    Inventors: Mostafa El-Khamy, Hessam Mahdavifar, Gennady Feygin, Jungwon Lee, Inyup Kang
  • Patent number: 9143372
    Abstract: A communication system includes: an antenna unit configured to receive a receiver signal; a communication unit, coupled to the antenna unit, configured to: calculate a decoding result based on the receiver signal, generate a dynamic scalar based on the decoding result, and generate a content replication based on the dynamic scalar for communicating with a device.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: September 22, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinhong Wu, Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Publication number: 20150236717
    Abstract: A method and system for decoding a signal are provided. The method includes receiving a signal, where the signal includes at least one symbol; decoding the signal in stages, where each at least one symbol is decoded into at least one bit per stage, wherein a Log-Likelihood Ratio (LLR) and a path metric are determined for each possible path for each at least one bit at each stage; determining the magnitudes of the LLRs; identifying K bits of the signal with the smallest corresponding LLR magnitudes; identifying, for each of the K bits, L possible paths with the largest path metrics at each decoder stage for a user-definable number of decoder stages; performing forward and backward traces, for each of the L possible paths, to determine candidate codewords; performing a Cyclic Redundancy Check (CRC) on the candidate codewords, and stopping after a first candidate codeword passes the CRC.
    Type: Application
    Filed: December 9, 2014
    Publication date: August 20, 2015
    Inventors: Mostafa EL-KHAMY, Jinhong WU, Jungwon LEE, Inyup KANG
  • Patent number: 9083387
    Abstract: A communication system includes: an antenna for receiving a receiver signal for communicating a transmitter signal corresponding to the receiver signal over transmission channels according to a polar coding scheme; a communication unit including: an arrangement module for generating a sequenced-signal based on the receiver signal according to a permutation mechanism; and a decoder module for determining a communication content based on the sequenced-signal for communicating the communication content intended by the transmitter signal with a device.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: July 14, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hessam Mahdavifar, Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Publication number: 20150188666
    Abstract: A computing system includes: an inter-device interface configured to communicate content; and a communication unit, coupled to the inter-device interface, configured to process the content based on a polar communication mechanism utilizing multiple processing dimensions for communicating the content, including: generating a node result with a first orthogonal mechanism, and processing the node result from the first orthogonal mechanism with a second orthogonal mechanism.
    Type: Application
    Filed: September 12, 2014
    Publication date: July 2, 2015
    Inventors: Hessam Mahdavifar, Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Publication number: 20150155884
    Abstract: A method, apparatus, and non-transitory computer-readable recording medium for generating an algebraic Spatially-Coupled Low-Density Parity-Check (SC LDPC) code are provided. The method includes selecting an LDPC block code over a finite field GF(q) with a girth of at least 6; constructing a parity-check matrix H from the selected LDPC block code; replicating H a user-definable number of times to form a two-dimensional array Hrep; constructing a masking matrix W with a user-definable spatially-coupled pattern; and masking a sub-matrix of Hrep using W to obtain a spatially-coupled parity-check matrix HSC, wherein a null space of HSC is the algebraic SC LDPC code.
    Type: Application
    Filed: October 17, 2014
    Publication date: June 4, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Mostafa El-Khamy, Keke LIU, Jungwon LEE, Inyup KANG
  • Publication number: 20150058694
    Abstract: A computing system includes: an inter-device interface configured to access a destination signal including an information portion for representing a content and an error-handling portion for describing the information portion relative to the content; a communication unit, coupled to the inter-device interface, configured to: generate a parity-check parameter based on a sparse configuration from the destination signal, and estimate the content based on decoding the information portion using the error-handling portion and the parity-check parameter.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Patent number: 8942323
    Abstract: A communication system includes: a partial-calculation module configured to determine a partial-sensitive output and a partial-insensitive output for a receiver message; a characterization module, coupled to the partial-calculation module, configured to calculate a mismatch characterization with a control unit using the partial-sensitive output and the partial-insensitive output; and a selection module, coupled to the partial-calculation module, configured to generate a mechanism-controller based on the mismatch characterization for communicating with a device.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: January 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mostafa El Khamy, Jinhong Wu, Heejin Roh, Jungwon Lee, Inyup Kang
  • Publication number: 20150016563
    Abstract: A computing system includes: an interface configured to communicate a coordination profile for coordinating a second transmitter device with a first transmitter device; and a unit, coupled to the interface, configured to generate a first encoded message using a message polarization mechanism based on the coordination profile for coordinating the first encoded message with a second encoded message concurrently transmitting through the second transmitter device. A further embodiment of the computing system includes: an interface configured to communicate a receiver signal for representing a first encoded message and a second encoded message coordinated for concurrent transmission; a unit, coupled to the interface, configured to: determine a communication rate associated with the receiver signal, and decode the receiver signal based on a message polarization mechanism and the communication rate for identifying the first encoded message based on a coordination profile corresponding to the communication rate.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Inventors: Hessam Mahdavifar, Mostafa El-Khamy, Jungwon Lee, Inyup Kang
  • Patent number: 8897399
    Abstract: A communication system includes: a module configured to decode a remainder portion of a receiver message using a mechanism with a compensation channel value calculated from decoding an evaluation portion of the receiver message with a different mechanism, or using a mechanism-controller generated using a mismatch characterization based on determining a partial-sensitive output and a partial-insensitive output, or a combination thereof for communicating with a device.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: November 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mostafa El Khamy, Jinhong Wu, Heejin Roh, Jungwon Lee, Inyup Kang
  • Publication number: 20140334577
    Abstract: A communication system includes: a partial-calculation module configured to determine a partial-sensitive output and a partial-insensitive output for a receiver message; a characterization module, coupled to the partial-calculation module, configured to calculate a mismatch characterization with a control unit using the partial-sensitive output and the partial-insensitive output; and a selection module, coupled to the partial-calculation module, configured to generate a mechanism-controller based on the mismatch characterization for communicating with a device.
    Type: Application
    Filed: April 29, 2013
    Publication date: November 13, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Mostafa El Khamy, Jinhong Wu, Heejin Roh, Jungwon Lee, Inyup Kang
  • Publication number: 20140235288
    Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference and perform a self-calibration process.
    Type: Application
    Filed: April 23, 2014
    Publication date: August 21, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Mehmet Yavuz, Farhad Meshkati, Mostafa El-Khamy, Sanjiv Nanda