Patents Assigned to Adaptix, Inc.
  • Patent number: 9344211
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: May 17, 2016
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 9219572
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 22, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 9210708
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: December 8, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 9203553
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 1, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 9191138
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: November 17, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 9161333
    Abstract: Advantage is taken of adaptive allocation techniques by intentionally creating multi-user diversity in an otherwise flat fading environment in order to improve system capacity. In one embodiment, multi-path distortion can be resolved to determine subscriber station (SS) diversity gain. Overall network capacity can be increased by allocating channel assignments to SSs within the network based on determined SS diversity gains. In one embodiment, intentional multi-path distortion is produced by transmitting a signal and a time-delayed version of the signal from a base station (BS).
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: October 13, 2015
    Assignee: Adaptix, Inc.
    Inventors: Manyuan Shen, Guanbin Xing
  • Publication number: 20150171988
    Abstract: Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.
    Type: Application
    Filed: March 3, 2015
    Publication date: June 18, 2015
    Applicants: Adaptix, Inc., NETGEAR, Inc.
    Inventors: David Prager, Bruce C. Rothaar, Heinz Lycklama A'nyeholt, Dave Randall
  • Patent number: 8964719
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: February 24, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 8958386
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: February 17, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
  • Patent number: 8934445
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: January 13, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
  • Patent number: 8934375
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: January 13, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 8891414
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: November 18, 2014
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
  • Patent number: 8873516
    Abstract: A method and apparatus for wireless communication are described. In one embodiment, a method for communicating with a subscriber comprises transmitting orthogonal frequency domain multiplexing (OFDM) signals to the subscriber, and receiving direct-sequence spread spectrum (DSSS) signals from the subscriber.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: October 28, 2014
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang
  • Publication number: 20140269572
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 18, 2014
    Applicant: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
  • Publication number: 20140269609
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Publication number: 20140269396
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: ADAPTIX, INC.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Publication number: 20140269573
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 18, 2014
    Applicant: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Wenzhong Zhang, Kemin Li
  • Patent number: 8805324
    Abstract: A communications base station is installed at a selected new location and the base station, prior to going “on line” monitors the wireless traffic from other base stations within interference range of the new base station's coverage area. The new base station also monitors the wireless traffic between mobile devices within its coverage area and these other base stations. Based upon these monitored conditions, as well as other known conditions, the new base station then determines the transmitting parameter configuration it should imply in order to achieve a desired optimization between capacity and coverage area. After the new base station is on line, a central control can monitor the entire network to determine if any additional changes are necessary and if so the new transceiver, or any other transceiver, can be instructed to monitor itself with respect to interference and to take corrective action to improve overall network coverage and capacity.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: August 12, 2014
    Assignee: Adaptix, Inc.
    Inventor: Douglas O. Reudink
  • Patent number: 8797970
    Abstract: A method and apparatus for antenna switching, grouping, and channel assignments in wireless communication systems. The invention allows multiuser diversity to be exploited with simple antenna operations, therefore increasing the capacity and performance of wireless communications systems. Channel characteristics indicative of signal reception quality for downlink or bi-directional traffic for each channel/antenna resource combination are measured or estimated at a subscriber. Corresponding channel characteristic information is returned to the base station. Channel characteristics information may also be measured or estimated for uplink or bi-directional signals received at each of multiple receive antenna resources. The base station employs channel allocation logic to assign uplink, downlink and/or bi-directional channels for multiple subscribers based on channel characteristics measured and/or estimated for the uplink, downlink and/or bi-directional channels.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: August 5, 2014
    Assignee: Adaptix, Inc.
    Inventors: Guanbin Xing, Manyuan Shen, Hui Liu
  • Publication number: 20140204876
    Abstract: Systems and methods are disclosed for transporting data across an air interface using a blending of protocol layers to achieve reduced bandwidth. Advantage is taken of the fact that the extra overhead from, for example, the Ethernet protocol is addressing information pertaining to the destination of the packet. This destination information (for example, the Ethernet address) can be stripped from the transmission prior to the air interface and recreated after the air interface. In one embodiment, the concepts of a proper Layer 2 CS are merged on top of the 802.16 protocol and still retain the benefits of a Layer 2 transparent bridged service layer to the network layer. In one embodiment, the MAC address of the destination is used for the air interface and the Ethernet address is recreated and added on the far side of the air interface.
    Type: Application
    Filed: March 19, 2014
    Publication date: July 24, 2014
    Applicant: ADAPTIX, INC.
    Inventor: Guichang FANG