Patents Assigned to Airvana, Corp.
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Patent number: 8355727Abstract: Techniques for facilitating a hand-in using proximity-detection and dual-pilot operation detect a presence of a client device in proximity to the network-side device; and transmit a first signal over a first communication channel to the client device, the first signal enabling the client device to access information transmitted in a second signal from the network-side device.Type: GrantFiled: December 19, 2007Date of Patent: January 15, 2013Assignee: Airvana, Corp.Inventors: Minh Hoang, Kenneth Jones
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Patent number: 8345694Abstract: An access terminal identity based mobility is provided in which a first network tunnel is established between an access gateway and a first access router, and a second network tunnel is established between the access gateway and a second access router. At the access gateway, source addresses of packets sent from an access terminal to a remote correspondent node are translated by replacing the local address of the access terminal with the public address of the access terminal. The access terminal continuously maintain a communication session with the correspondent node as the access terminal moves from a first location to a second location and switches from accessing the first access router to accessing the second access router. A mapping between the local address and the public address is updated as the access terminal switches from the first access router to the second access router.Type: GrantFiled: December 31, 2007Date of Patent: January 1, 2013Assignee: Airvana, Corp.Inventors: Minsh Den, Steve Kohalmi, Leigh M. Chinitz
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Patent number: 8295256Abstract: This patent application relates to private access point beacon signals in wireless networks.Type: GrantFiled: August 29, 2008Date of Patent: October 23, 2012Assignee: Airvana, Corp.Inventors: Pierre A. Humblet, Amit Jain, Woojune Kim, Balaji Raghothaman
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Patent number: 8290527Abstract: The invention relates to a method and system of setting transmitter power levels, particularly in a Local Network Node transmitter, providing a pico cell for private use. A User Equipment (UE) is used to make measurements of the transmission link properties, such as downlink power and round trip time. Based on the measurements made at one or a plurality of locations, the power of the Local Network Node can be determined such that interference is minimized with any overlying cells of a macro-network. Call handovers between the UE and the cell of a macro network can also be arranged based on properties measure by the UE.Type: GrantFiled: August 1, 2005Date of Patent: October 16, 2012Assignee: Airvana, Corp.Inventor: Andrew Richardson
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Patent number: 8280376Abstract: In general, a first private access point detects a neighboring private access point. An address of the neighboring private access point is identified, and a peer-to-peer network that includes the first private access point and the neighboring private access points is formed. The peer-to-peer network is maintained between the first private access point and the neighboring private access points.Type: GrantFiled: December 31, 2008Date of Patent: October 2, 2012Assignee: Airvana, Corp.Inventors: Sundaram M. Rajagopalan, Deepak Das, Balaji Raghothaman, Woojune Kim, Steve Kohalmi
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Patent number: 8259671Abstract: Disclosed is a method that includes determining an identifier of an access terminal authorized to use an access point, and transmitting a service redirection message including the identifier. The method also includes transmitting a parameter that instructs the access terminal to wake up during the particular time slot in the repeating interval.Type: GrantFiled: December 18, 2007Date of Patent: September 4, 2012Assignee: Airvana, Corp.Inventors: Balaji Raghothaman, Pierre A. Humblet, Vedat Eyuboglu, Woojune Kim
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Patent number: 8229498Abstract: In addition to other aspects disclosed, a portable base station requests assignment of a portion of a code space from a remotely located control station. The assignment is based upon the location of the portable base station. The portable base station is also capable of transmitting an identification signal using the assigned code space portion to uniquely identify the portable base station to one or more access terminals.Type: GrantFiled: December 28, 2006Date of Patent: July 24, 2012Assignee: Airvana, Corp.Inventors: Shi Baw Ch'ng, Amit Mate, Satish Ananthaiyer, Vedat Eyuboglu
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Patent number: 8229397Abstract: This description relates to access terminal authorization methods in wireless networks.Type: GrantFiled: September 23, 2008Date of Patent: July 24, 2012Assignee: Airvana, Corp.Inventors: Jindong Hou, Kenneth Jones
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Patent number: 8176327Abstract: A method includes sending a first authentication challenge from an authenticator to an access terminal, and receiving, at the authenticator, a first return message from the access terminal that includes an identifier of the access terminal and a response to the first challenge. A second authentication challenge is sent from the authenticator to the access terminal, in which the second authentication challenge is determined by an authentication server based in part on the identifier of the access terminal previously received along with the response to the first challenge. The authenticator receives a second return message from the access terminal that includes a response to the second authentication challenge.Type: GrantFiled: December 27, 2006Date of Patent: May 8, 2012Assignee: Airvana, Corp.Inventors: Jay Xiong, Shi Baw Ch'ng
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Patent number: 8170598Abstract: This description relates to information sharing in a private access point network.Type: GrantFiled: December 30, 2008Date of Patent: May 1, 2012Assignee: Airvana, Corp.Inventors: Balaji Raghothaman, Deepak Das, Anand Srinivas, Pierre A. Humblet
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Patent number: 8165528Abstract: An access terminal is enabled to communicate with a private access point while interference caused by the access terminal is mitigated. A maximum allowable transmit rate of the access terminal for communication with the private access point is determined. The access terminal is caused to communicate at a transmit rate at or below the maximum allowable transmit rate.Type: GrantFiled: December 27, 2007Date of Patent: April 24, 2012Assignee: Airvana, Corp.Inventors: Balaji Raghothaman, Pierre A. Humblet
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Patent number: 8160631Abstract: A method performed in a wireless communication system having radio frequency burst transmission interference is presented. The method includes obtaining a first power level of noise and interference signals in an environment of at least one of a plurality of wireless communication devices serviced by an access point; and estimating a second power level by filtering the first power level.Type: GrantFiled: January 7, 2009Date of Patent: April 17, 2012Assignee: Airvana, Corp.Inventors: Balaji Raghothaman, Pierre A. Humblet
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Patent number: 8160629Abstract: In a radio access network in which a first access terminal uses a first access point to access the network and a second access terminal uses a second access point to access the network, interference is reduced in communications between the first access terminal and the first access point by adjusting signal power levels of the second access terminal without requiring coordination between the first and second access points.Type: GrantFiled: December 15, 2006Date of Patent: April 17, 2012Assignee: Airvana, Corp.Inventors: Amit Mate, Paul D'Arcy, Satish Ananthaiyer
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Patent number: 8078165Abstract: Information is received identifying a geographic location of an access point in a radio access network. Access information is assigned and communicated to the access point, and the access information and the geographic location information is communicated to an access terminal. The access terminal identifies the access point as a preferred access point, including its geographic location. The access terminal receives information identifying its own geographic location, and when the access terminal is near the access point, the access point is used to access the network. The access point receives information identifying its geographic location and communicates the geographic location information to a configuration server. The access point receives access information from the configuration server and provides access terminals access to the network using the access information.Type: GrantFiled: December 15, 2006Date of Patent: December 13, 2011Assignee: Airvana, Corp.Inventors: Amit Mate, Shi Baw Ch'ng, Paul D'Arcy, Satish Ananthaiyer
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Patent number: 8060058Abstract: In addition to other aspects disclosed, through a non-secure network, one or more bidirectional secure logical connections are established between a mobile base station and a secure network interface.Type: GrantFiled: December 28, 2007Date of Patent: November 15, 2011Assignee: Airvana, Corp.Inventors: Shi Baw Ch'ng, Minsh Den, Woojune Kim, Douglas Norman Knisely, Robin Montague Mathews
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Patent number: 7995493Abstract: In general, a method includes monitoring, by a personal access point, an amount of backhaul bandwidth available for multimedia and signaling communications by measuring a level of latency associated with existing multimedia and signaling communications.Type: GrantFiled: December 23, 2008Date of Patent: August 9, 2011Assignee: Airvana, Corp.Inventors: Erik E. Anderlind, Andrew Richardson
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Patent number: 7983672Abstract: Communication is initiated with a radio access network through a first private access point according to a first air interface standard based on a first identifier corresponding to the first private access point. A second identifier corresponding to the first private access point is determined by using a roaming list. The second identifier is associated with the first identifier in the roaming list. A set of one or more carrier frequencies for communication according to a second air interface standard is determined using the roaming list. The second identifier is mapped to the set of one or more carrier frequencies in the roaming list. Based on the roaming list, initiation of communication with the radio access network is attempted through the first private access point according to the second air interface standard based on the second identifier at one carrier frequency of the set of one or more carrier frequencies.Type: GrantFiled: December 19, 2007Date of Patent: July 19, 2011Assignee: Airvana, Corp.Inventors: Pierre A. Humblet, Balaji Raghothaman
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Patent number: 7933619Abstract: A method including wirelessly receiving a communication from a wireless device at a receiving device where the communication designated for transmission through the receiving device, recognizing a non-address portion of the communication as indicative of a command for the receiving device, and terminating the communication at the receiving device.Type: GrantFiled: October 2, 2007Date of Patent: April 26, 2011Assignee: Airvana, Corp.Inventor: Woojune Kim
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Patent number: 7926098Abstract: A method includes establishing a secure connection between a client device and a first security gateway, the first security gateway being associated with a service provider for providing a service to the client device, and handing off the secure connection from the first security gateway to a second security gateway. Handing off the secure connection includes sending from the first security gateway to the second security gateway security information used to encrypt and decrypt messages transmitted through the secure connection, and sending from the first security gateway to the client device an address of the second security gateway to enable the client device to initiate contact with the second security gateway.Type: GrantFiled: December 29, 2006Date of Patent: April 12, 2011Assignee: Airvana, Corp.Inventors: Leigh M. Chinitz, Minsh Den
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Patent number: 7907571Abstract: Techniques for reducing beacon interference include identifying a mobile device located within a coverage area serviced by a first access point, determining a power of a signal transmitted by a mobile device to a second access point; and modifying the beacon to reduce interference.Type: GrantFiled: June 30, 2009Date of Patent: March 15, 2011Assignee: Airvana, Corp.Inventors: Balaji Raghothaman, Rayadurgam Ravikanth