Patents Assigned to Airvana, Corp.
  • Patent number: 8355727
    Abstract: 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: Grant
    Filed: December 19, 2007
    Date of Patent: January 15, 2013
    Assignee: Airvana, Corp.
    Inventors: Minh Hoang, Kenneth Jones
  • Patent number: 8345694
    Abstract: 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: Grant
    Filed: December 31, 2007
    Date of Patent: January 1, 2013
    Assignee: Airvana, Corp.
    Inventors: Minsh Den, Steve Kohalmi, Leigh M. Chinitz
  • Patent number: 8295256
    Abstract: This patent application relates to private access point beacon signals in wireless networks.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: October 23, 2012
    Assignee: Airvana, Corp.
    Inventors: Pierre A. Humblet, Amit Jain, Woojune Kim, Balaji Raghothaman
  • Patent number: 8290527
    Abstract: 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: Grant
    Filed: August 1, 2005
    Date of Patent: October 16, 2012
    Assignee: Airvana, Corp.
    Inventor: Andrew Richardson
  • Patent number: 8280376
    Abstract: 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: Grant
    Filed: December 31, 2008
    Date of Patent: October 2, 2012
    Assignee: Airvana, Corp.
    Inventors: Sundaram M. Rajagopalan, Deepak Das, Balaji Raghothaman, Woojune Kim, Steve Kohalmi
  • Patent number: 8259671
    Abstract: 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: Grant
    Filed: December 18, 2007
    Date of Patent: September 4, 2012
    Assignee: Airvana, Corp.
    Inventors: Balaji Raghothaman, Pierre A. Humblet, Vedat Eyuboglu, Woojune Kim
  • Patent number: 8229498
    Abstract: 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: Grant
    Filed: December 28, 2006
    Date of Patent: July 24, 2012
    Assignee: Airvana, Corp.
    Inventors: Shi Baw Ch'ng, Amit Mate, Satish Ananthaiyer, Vedat Eyuboglu
  • Patent number: 8229397
    Abstract: This description relates to access terminal authorization methods in wireless networks.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: July 24, 2012
    Assignee: Airvana, Corp.
    Inventors: Jindong Hou, Kenneth Jones
  • Patent number: 8176327
    Abstract: 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: Grant
    Filed: December 27, 2006
    Date of Patent: May 8, 2012
    Assignee: Airvana, Corp.
    Inventors: Jay Xiong, Shi Baw Ch'ng
  • Patent number: 8170598
    Abstract: This description relates to information sharing in a private access point network.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: May 1, 2012
    Assignee: Airvana, Corp.
    Inventors: Balaji Raghothaman, Deepak Das, Anand Srinivas, Pierre A. Humblet
  • Patent number: 8165528
    Abstract: 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: Grant
    Filed: December 27, 2007
    Date of Patent: April 24, 2012
    Assignee: Airvana, Corp.
    Inventors: Balaji Raghothaman, Pierre A. Humblet
  • Patent number: 8160631
    Abstract: 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: Grant
    Filed: January 7, 2009
    Date of Patent: April 17, 2012
    Assignee: Airvana, Corp.
    Inventors: Balaji Raghothaman, Pierre A. Humblet
  • Patent number: 8160629
    Abstract: 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: Grant
    Filed: December 15, 2006
    Date of Patent: April 17, 2012
    Assignee: Airvana, Corp.
    Inventors: Amit Mate, Paul D'Arcy, Satish Ananthaiyer
  • Patent number: 8078165
    Abstract: 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: Grant
    Filed: December 15, 2006
    Date of Patent: December 13, 2011
    Assignee: Airvana, Corp.
    Inventors: Amit Mate, Shi Baw Ch'ng, Paul D'Arcy, Satish Ananthaiyer
  • Patent number: 8060058
    Abstract: 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: Grant
    Filed: December 28, 2007
    Date of Patent: November 15, 2011
    Assignee: Airvana, Corp.
    Inventors: Shi Baw Ch'ng, Minsh Den, Woojune Kim, Douglas Norman Knisely, Robin Montague Mathews
  • Patent number: 7995493
    Abstract: 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: Grant
    Filed: December 23, 2008
    Date of Patent: August 9, 2011
    Assignee: Airvana, Corp.
    Inventors: Erik E. Anderlind, Andrew Richardson
  • Patent number: 7983672
    Abstract: 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: Grant
    Filed: December 19, 2007
    Date of Patent: July 19, 2011
    Assignee: Airvana, Corp.
    Inventors: Pierre A. Humblet, Balaji Raghothaman
  • Patent number: 7933619
    Abstract: 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: Grant
    Filed: October 2, 2007
    Date of Patent: April 26, 2011
    Assignee: Airvana, Corp.
    Inventor: Woojune Kim
  • Patent number: 7926098
    Abstract: 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: Grant
    Filed: December 29, 2006
    Date of Patent: April 12, 2011
    Assignee: Airvana, Corp.
    Inventors: Leigh M. Chinitz, Minsh Den
  • Patent number: 7907571
    Abstract: 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: Grant
    Filed: June 30, 2009
    Date of Patent: March 15, 2011
    Assignee: Airvana, Corp.
    Inventors: Balaji Raghothaman, Rayadurgam Ravikanth