Patents by Inventor Ahmed Tarraf

Ahmed Tarraf 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: 8902739
    Abstract: A wireless communication system (20) includes backhaul congestion control. Whenever congestion is detected on the backhaul, a flow control message sets a window size to a reduced window size to reduce or eliminate packet drops and to facilitate alleviating the congestion condition. A disclosed example includes detecting backhaul congestion and responsively reducing an available backhaul receiver buffer space factor used for setting the window size for a subsequent backhaul transmission. In a disclosed example, the buffer space factor is gradually increased back toward an actual available buffer space as the congestion status improves.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: December 2, 2014
    Assignee: Alcatel Lucent
    Inventors: Ahmed Tarraf, Xin Wang, Yang Yang
  • Patent number: 8811173
    Abstract: In one embodiment, a plurality of queues are established corresponding to each of a plurality mobiles, respectively. Data packets associated with the plurality of mobiles are received at a network element. Each received data packet is assigned to a corresponding one of the plurality of queues. A determination operation is performed on a selected one of the plurality of queues to determine whether or not to send one or more packets of each queue from the network gateway element. The determination operation is performed based on a comparison between a packet size of a head packet and an adaptive transmission threshold value associated with the selected queue. The adaptive transmission threshold value is a value that is changed based on an amount data sent from the selected queue. The head data packet being an earliest received data packet in the selected queue.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: August 19, 2014
    Assignee: Alcatel Lucent
    Inventors: Sherif Sherif, Xin Wang, Mahmoud Sherif, Ahmed Tarraf, Jorge Rodriguez
  • Publication number: 20120201148
    Abstract: In one embodiment, a plurality of queues are established corresponding to each of a plurality mobiles, respectively. Data packets associated with the plurality of mobiles are received at a network element. Each received data packet is assigned to a corresponding one of the plurality of queues. A determination operation is performed on a selected one of the plurality of queues to determine whether or not to send one or more packets of each queue from the network gateway element. The determination operation is performed based on a comparison between a packet size of a head packet and an adaptive transmission threshold value associated with the selected queue. The adaptive transmission threshold value is a value that is changed based on an amount data sent from the selected queue. The head data packet being an earliest received data packet in the selected queue.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Applicant: ALCATEL-LUCENT USA INC.
    Inventors: Sherif Sherif, Xin Wang, Mahmoud Sherif, Ahmed Tarraf, Jorge Rodriguez
  • Publication number: 20110235632
    Abstract: A communications terminal device and a method performed by a communications terminal device wherein packet data received from a Wireless Personal Area Network (WPAN) headset (such as, for example, a Bluetooth headset), which comprises an encoded audio signal, is directly convened by the terminal device to Internet Protocol (IP) packets which are transmitted across a Voice over Internet Protocol (VoIP) communications network, wherein speech encoding is not performed by the terminal device. Similarly, a communications terminal device and a method performed by a communications terminal device wherein IP packet data comprising an encoded audio signal is received from a VoIP communications network by the terminal device, and is directly converted by the terminal device to WPAN packets (such as, for example, Bluetooth protocol packets) which are transmitted to a WPAN headset (such as, for example, a Bluetooth headset), wherein speech decoding is not performed by the terminal device.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 29, 2011
    Inventors: Doh-Suk Kim, Ahmed Tarraf
  • Publication number: 20060268689
    Abstract: A wireless communication system (20) includes backhaul congestion control. Whenever congestion is detected on the backhaul, a flow control message sets a window size to a reduced window size to reduce or eliminate packet drops and to facilitate alleviating the congestion condition. A disclosed example includes detecting backhaul congestion and responsively reducing an available backhaul receiver buffer space factor used for setting the window size for a subsequent backhaul transmission. In a disclosed example, the buffer space factor is gradually increased back toward an actual available buffer space as the congestion status improves.
    Type: Application
    Filed: May 26, 2005
    Publication date: November 30, 2006
    Inventors: Ahmed Tarraf, Xin Wang, Yang Yang
  • Publication number: 20060182152
    Abstract: A wireless communication system (20) allows communications between a mobile station (22) and a wireless network (24) over combined physical traffic channels (44, 46). In a disclosed example, a mobile station (22) has multiple wireless access terminals (40, 42) for transmitting different portions of a communication over multiple physical traffic channels (44, 46). In a disclosed example, each wireless access terminal (40, 42) utilizes one of the channels (44, 46). A known multilink PPP protocol facilitates splitting a communication into portions to be communicated over the combined physical traffic channels (44, 46) and then recombined at the mobile station (22) or an appropriate portion of the network (24). With a disclosed example, the achievable throughput using combined physical traffic channels (44, 46) approaches the aggregate or sum of the individual channel throughput capacities.
    Type: Application
    Filed: February 16, 2005
    Publication date: August 17, 2006
    Inventors: Qi Bi, Ahmed Tarraf, Xin Wang, Yang Yang
  • Publication number: 20050228655
    Abstract: The present invention provides a method and an apparatus for real time objective voice analysis. The apparatus includes a sound quality analyzer for receiving at least one first signal and providing at least one second signal indicative of at least one non-intrusive estimate of a sound quality based on the at least one first signal.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 13, 2005
    Inventors: Binshi Cao, Doh-Suk Kim, Ahmed Tarraf