Patents Assigned to Alvarion Ltd.
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Patent number: 8483204Abstract: 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: GrantFiled: January 10, 2011Date of Patent: July 9, 2013Assignee: Alvarion Ltd.Inventors: Naftali Chayat, Ze'ev Roth, Vladimir Yanover, Mark Altshuller, Oleg Marinchenco
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Publication number: 20130142185Abstract: A method device and system are provided for managing a wireless local area network comprising a plurality of station units (STAs), where each of the plurality of station units is adapted to wirelessly communicate with one or more access points. The method device and system comprises affecting power control over air time request packets transmitted by respective station units from among the plurality of STAs towards one of the one or more access points, so that all air time request packets are received at said access point at substantially the same Signal to Noise Ratio (“SNR”), and wherein said power control does not affect packets carrying payload data that proceeds the air time request packets transmitted by the respective station units.Type: ApplicationFiled: November 26, 2012Publication date: June 6, 2013Applicant: Alvarion Ltd.Inventor: Alvarion Ltd.
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Publication number: 20130003618Abstract: A method of using resource blocks in a communication system with a plurality of Base Stations (BSs), including assigning resource blocks to a first BS, the first BS communicating to a second BS a message comprising information about at least one resource block assigned to the first BS and not planned to be used by the first BS, and the second BS receiving the message. Optionally, the second BS using the at least one resource block. Related apparatus and methods are also described.Type: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicant: Alvarion Ltd.Inventor: Leonid Shousterman
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Patent number: 8315656Abstract: A method is provided by the present invention for allocating channel resources in a wireless network. The method comprises: a) transmitting at least one message which comprises information that would allow association of at least one service flow for conveying data from/to a subscriber terminal, with at least one group of service flows; b) transmitting from a base station messages adapted to provide information which relate to the allocation of resources of a channel along which data will be transmitted to/from said subscriber terminal via one or more service flows associated with that at least one group of service flows, and wherein the information comprises an identification of the at least one group of service flows; and c) transmitting data from/to the subscriber terminal in accordance with the allocation of the channel resources for the at least one group of service flows.Type: GrantFiled: June 13, 2008Date of Patent: November 20, 2012Assignee: Alvarion Ltd.Inventor: Vladimir Yanover
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Patent number: 8289929Abstract: A method is provided for providing secured mobile IP services to a mobile terminal which is currently associated with an access network different from its own home access network. The method is characterized by creating a virtual mobile node at an access network server of the current access network, which communicates with a Home Agent associated with the terminal's home mobile network and with one or more access points associated with the current access network, at which the mobile terminal is currently located.Type: GrantFiled: January 28, 2011Date of Patent: October 16, 2012Assignee: Alvarion Ltd.Inventor: Leonid Shousterman
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Publication number: 20120257599Abstract: A method for carrying out a handover procedure, following which a mobile terminal (MS) currently in communication with a first base station (BS), will communicate via a second BS. The method includes upon initiating a handover procedure, determining that the MS will receive all future IP packets via the second base station, following this determination and prior to establishing a connection between the MS and the second BS, forwarding all IP packets being addressed to the MS to the second BS, and buffering the received IP packets thereat, and upon establishing a connection between the MS and the second BS, forwarding the IP packets that were buffered at the second BS to the MS, wherein the buffered IP packets are delivered to the MS before delivering any packets addressed thereto along a new path extending to the second BS which does not include the first BS.Type: ApplicationFiled: April 2, 2012Publication date: October 11, 2012Applicant: ALVARION LTD.Inventors: Leonid SHOUSTERMAN, Oleg Marinchenco, Mark Altshuller, Vladimir Yanover, Avner Aloush
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Patent number: 8265648Abstract: A method of using resource blocks in a communication system with a plurality of Base Stations (BSs), including assigning resource blocks to a first BS, the first BS communicating to a second BS a message comprising information about at least one resource block assigned to the first BS and not planned to be used by the first BS, and the second BS receiving the message. Optionally, the second BS using the at least one resource block. Related apparatus and methods are also described.Type: GrantFiled: July 1, 2009Date of Patent: September 11, 2012Assignee: Alvarion Ltd.Inventor: Leonid Shousterman
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Patent number: 8228950Abstract: A method for detecting and/or estimating a ranging signal in a wireless communications network, wherein the ranging signal comprises a plurality of tiles. The method includes (i) for two or more of the plurality of tiles, carrying out a plurality of mathematical correlations for one or more of the plurality of tiles but less than all of the plurality of tiles products between subcarriers, wherein at least one of the plurality of products is carried out between non-adjacent subcarriers associated with one of the two or more of the plurality of tiles; (ii) summing the results of the correlations products, thereby obtaining mathematical correlations that make up summed results; and (iii) based on the summed results, detecting a code characterizing the ranging signal and/or estimating the timing offset of the ranging signal.Type: GrantFiled: September 18, 2006Date of Patent: July 24, 2012Assignee: Alvarion Ltd.Inventors: Dan Stopler, Tal Kaitz, Yaniv Bar
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Patent number: 8219117Abstract: In a wireless network which comprises a first plurality of base stations and a second plurality of access network gateways, there is provided a method for tracking and/or paging a mobile terminal, wherein the method comprises the steps of: providing a mobile terminal located within the wireless network, and wherein the mobile terminal is in an active mode; selecting a first access network gateway out of the second plurality of access network gateways to be an anchor gateway for location and/or paging control for the mobile terminal; and upon receiving at the first access network gateway a request for a location update of the mobile terminal which has meanwhile entered an idle mode, selecting a base station for communicating with the mobile terminal from among the first plurality of base stations, and providing the selected base station with information required for verifying the identity of the mobile terminal and/or for retaining the security integrity of the selected base station while carrying out locationType: GrantFiled: February 27, 2006Date of Patent: July 10, 2012Assignee: Alvarion Ltd.Inventors: Mark Altshuller, Oleg Marinchenco, Leonid Shousterman
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Patent number: 8204555Abstract: A method is provided for carrying out a power saving procedure in a wireless subscriber terminal which is operative to receive at least two different services, each of which is characterized by one or more characteristics related to traffic demands associated with that service. The method comprises the following steps: classifying each of the at least two different services based on their traffic demand related characteristics into corresponding power saving classes, where there are at least two different power saving classes associated with the at least two different services; for each of the power saving classes, determining required listening windows and required sleep windows; exchanging messages between the base station and the subscriber's device for synchronizing parameters for carrying out the power saving procedure.Type: GrantFiled: June 20, 2011Date of Patent: June 19, 2012Assignee: Alvarion Ltd.Inventor: Vladimir Yanover
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Patent number: 8179875Abstract: A method is described for the provisioning of latency-tolerant services in an access network. The method comprises the steps of: setting a demand to provide a service to a user; determining the network resources required to provide this service; establishing based upon the resources required to provide that service, the available network resources and/or the network's service provisioning policy, whether the provisioning of this service shall be immediately effected or be postponed to a later stage. If it has been established that the service will be provided at a later stage, it will be provided at a time when the available resources and/or the network's service provisioning policy match that of the resources required for the provisioning of the service.Type: GrantFiled: June 25, 2007Date of Patent: May 15, 2012Assignee: Alvarion Ltd.Inventors: Dvora Shait, Naftali Chayat
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Patent number: 8149786Abstract: A method and devices are provided to enable continuing a communication session currently carried by a mobile subscriber station (MSS) while switching from a first base station to a second base station. During the communication session that is being held with the MSS, a first Internet Protocol (IP) datagram is selected from among a plurality of IP datagrams associated with that communication session and received at a network gateway adapted to convey IP traffic received from the MSS. Following that selection and prior to establishing a connection between the mobile subscriber terminal and the second base station, IP datagrams that will be received at that network gateway after that first IP datagram had been received and which are addressed to the MSS, are backed up.Type: GrantFiled: June 21, 2006Date of Patent: April 3, 2012Assignee: Alvarion Ltd.Inventors: Leonid Shousterman, Oleg Marinchenco, Mark Altshuller, Vladimir Yanover, Avner Aloush
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Publication number: 20120066724Abstract: A method and apparatus for providing wireless coverage such as WiMAX or LTE coverage via a wired network are provided. For example, systems and methods are discussed in which a Cable TV (“CATV”) network, Direct Broadcasting Satellite (“DBS”) and/or Passive Optical Network (PON) are used in order to deliver the native wireless signals into the buildings or an area in which wireless coverage is desired, where a small Consumer Premise Device is used to transmit and receive the signals to and from the wireless devices.Type: ApplicationFiled: November 14, 2011Publication date: March 15, 2012Applicant: ALVARION LTD.Inventor: Mordechai ZUSSMAN
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Publication number: 20120028648Abstract: A load balancing system for a wireless network comprises: a base station parameter extraction unit able to extract base station availability parameters of currently available base stations; and a base station quality of service selector associated with said base station parameter extraction unit configured to determine from said parameters which of said available base stations is able to provide a currently required quality of service. The system requests resources from one such base station, thereby to ensure that mobile stations are distributed in a balanced manner between the available base stations. As well as quality of service, interference with other links may be taken into account, and uplinks and downlinks may be considered separately.Type: ApplicationFiled: October 10, 2011Publication date: February 2, 2012Applicant: Alvarion Ltd.Inventors: Naftali Chayat, David Zelikovsky, Ariel Doubchak, Nadav Lavi
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Publication number: 20110280172Abstract: A method and apparatus are provided for transmitting a communication frame by a base station which comprises broadcasted information intended for a plurality of subscriber stations (AMSs), wherein that information is broadcasted by using more than one Modulation and Coding Scheme (MCS).Type: ApplicationFiled: May 11, 2010Publication date: November 17, 2011Applicant: ALVARION LTD.Inventors: Daniel COHEN, Yaniv WEIZMANN
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Publication number: 20110273244Abstract: A variable phase shifter comprising a coupler including an input port, an output port, a through port and a coupled port and two conducting finite strips exhibiting equal lengths, the first conducting strip being movably coupled with the section of the coupler connecting the input port with the through port and the second conducting strip being movably coupled with the section of the coupler connecting the output port and with the coupled port, wherein displacing the conducting strip relative to the coupler, changes the phase of an output signal from the coupler, relative to the phase of a corresponding input signal into the coupler.Type: ApplicationFiled: May 4, 2010Publication date: November 10, 2011Applicant: ALVARION LTD.Inventor: Zeev Iluz
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Patent number: 8036675Abstract: A load balancing system for a wireless network comprises: a base station parameter extraction unit able to extract base station availability parameters of currently available base stations; and a base station quality of service selector associated with said base station parameter extraction unit configured to determine from said parameters which of said available base stations is able to provide a currently required quality of service. The system requests resources from one such base station, thereby to ensure that mobile stations are distributed in a balanced manner between the available base stations. As well as quality of service, interference with other links may be taken into account, and uplinks and downlinks may be considered separately.Type: GrantFiled: March 31, 2009Date of Patent: October 11, 2011Assignee: Alvarion Ltd.Inventors: Naftali Chayat, David Zelikovsky, Ariel Doubchak, Nadav Lavi
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Publication number: 20110243050Abstract: A method is provided for carrying out a power saving procedure in a wireless subscriber terminal which is operative to receive at least two different services, each of which is characterized by one or more characteristics related to traffic demands associated with that service. The method comprises the following steps: classifying each of the at least two different services based on their traffic demand related characteristics into corresponding power saving classes, where there are at least two different power saving classes associated with the at least two different services; for each of the power saving classes, determining required listening windows and required sleep windows; exchanging messages between the base station and the subscriber's device for synchronizing parameters for carrying out the power saving procedure.Type: ApplicationFiled: June 20, 2011Publication date: October 6, 2011Applicant: Alvarion Ltd.Inventor: Vladimir Yanover
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Patent number: 7991436Abstract: A method is provided for carrying out a power saving procedure in a wireless subscriber terminal which is operative to receive at least two different services, each of which is characterized by one or more characteristics related to traffic demands associated with that service. The method comprises the following steps: classifying each of the at least two different services based on their traffic demand related characteristics into corresponding power saving classes, where there are at least two different power saving classes associated with the at least two different services; for each of the power saving classes, determining required listening windows and required sleep windows; exchanging messages between the base station and the subscriber's device for synchronizing parameters for carrying out the power saving procedure.Type: GrantFiled: October 11, 2005Date of Patent: August 2, 2011Assignee: Alvarion Ltd.Inventor: Vladimir Yanover
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Publication number: 20110170460Abstract: 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: ApplicationFiled: January 10, 2011Publication date: July 14, 2011Applicant: ALVARION LTD.Inventors: Naftali CHAYAT, Ze'ev Roth, Vladimir Yanover, Mark Altshuller, Oleg Marinchenco