Patents by Inventor Ze'ev Roth

Ze'ev Roth 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).

  • TRANSMIT AND ADMISSION CONTROL FOR CDMA SATELLITE COMMUNICATION SYSTEM
    Publication number: 20130294224
    Abstract: A system for performing transmit power and admission control for a satellite based wireless communication systems. Admission control uses centralized admission and distributed admission controls. Centralized admission control uses a maximum persistence value broadcasted from a hub to terminals. Persistence is the probability that a transmission will timely occur. Each terminal transmits a persistence that is no greater than the maximum persistence value. If the transmission fails, the transmission is repeated using the same probability. Lowering the persistence introduces a delay for alleviateing congestion. Power control is performed using centralized and distributed power control. Centralized power control uses power control commands transmitted from the hub to each terminal. When an acknowledge is not received, a backoff and recovery procedure is performed.
    Type: Application
    Filed: June 21, 2013
    Publication date: November 7, 2013
    Inventors: Franklin P. Antonio, Ilan Kessler, Ze'ev Roth, Ephraim Zehavi
  • Transmit and admission control for CDMA satellite communication system
    Patent number: 8538322
    Abstract: A system for performing transmit power and admission control for a satellite based wireless communication systems. Admission control uses centralized admission and distributed admission controls. Centralized admission control uses a maximum persistence value broadcasted from a hub to terminals. Persistence is the probability that a transmission will timely occur. Each terminal transmits a persistence that is no greater than the maximum persistence value. If the transmission fails, the transmission is repeated using the same probability. Lowering the persistence introduces a delay for alleviating congestion. Power control is performed using centralized and distributed power control. Centralized power control uses power control commands transmitted from the hub to each terminal. When an acknowledge is not received, a backoff and recovery procedure is performed.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: September 17, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Franklin P. Antonio, Ilan Kessler, Ze'ev Roth, Ephraim Zehavi
  • Apparatus and system for using relay station in a TDD wireless network
    Patent number: 8483204
    Abstract: A Relay Station (RS) is provided. The RS is adapted to operate in a TDD type of wireless communication network which comprises at least one base station (BS) operative to communicate with the RS and with an IP network, and a plurality of Mobile Subscribers (MSs). The RS comprises: a subscriber terminal operative in conformity with IEEE 802.16e Standard; and a BS operative in conformity with said IEEE 802.16e Standard, and wherein that subscriber terminal and that BS that belong to the RS are connected to each other, and wherein all communications transmitted from the at least one BS to the RS are in conformity with the IEEE 802.16e Standard.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: July 9, 2013
    Assignee: Alvarion Ltd.
    Inventors: Naftali Chayat, Ze'ev Roth, Vladimir Yanover, Mark Altshuller, Oleg Marinchenco
  • APPARATUS AND SYSTEM FOR USING RELAY STATION IN A TDD WIRELESS NETWORK
    Publication number: 20110170460
    Abstract: A Relay Station (RS) is provided. The RS is adapted to operate in a TDD type of wireless communication network which comprises at least one base station (BS) operative to communicate with the RS and with an IP network, and a plurality of Mobile Subscribers (MSs). The RS comprises: a subscriber terminal operative in conformity with IEEE 802.16e Standard; and a BS operative in conformity with said IEEE 802.16e Standard, and wherein that subscriber terminal and that BS that belong to the RS are connected to each other, and wherein all communications transmitted from the at least one BS to the RS are in conformity with the IEEE 802.16e Standard.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Applicant: ALVARION LTD.
    Inventors: Naftali CHAYAT, Ze'ev Roth, Vladimir Yanover, Mark Altshuller, Oleg Marinchenco
  • Wireless communications in a multi-sector network
    Patent number: 7706323
    Abstract: In a wireless network employing Spatial Division Multiplexing Access (“SDMA”) in at least one of its cells, a method is provided for dynamically allocating transmission resources to different subscriber devices.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: April 27, 2010
    Assignee: Alvarion Ltd.
    Inventors: Dan Stopler, Ze'ev Roth, Naftali Chayat
  • WIRELESS COMMUNICATIONS IN A MULTI-SECTOR NETWORK
    Publication number: 20080273515
    Abstract: In a wireless network employing Spatial Division Multiplexing Access (“SDMA”) in at least one of its cells, a method is provided for dynamically allocating transmission resources to different subscriber devices.
    Type: Application
    Filed: May 2, 2007
    Publication date: November 6, 2008
    Applicant: Alvarion Ltd.
    Inventors: Dan STOPLER, Ze'ev Roth, Naftali Chayat