Patents by Inventor Christopher G. Lott

Christopher G. Lott 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).

  • Publication number: 20090285159
    Abstract: Techniques for selecting a serving sector for a terminal based on server selection information in order to balance the load of sectors in a wireless communication system are described. The server selection information for each sector may be set based on the load of the sector and may be used to rank the sector for selection as a serving sector. In one design, a terminal may receive server selection information for multiple sectors. The server selection information for each sector may include an offset used to adjust a measurement made by the terminal for the sector, a priority of the sector for selection as a serving sector, a DRCLock set based on the load of the sector, etc. The terminal may determine received signal qualities of the sectors. The terminal may then select one of the sectors as a serving sector based on the server selection information and the received signal qualities of the sectors.
    Type: Application
    Filed: May 14, 2009
    Publication date: November 19, 2009
    Applicant: QUALCOMM Incorporated
    Inventors: Ramin Rezaiifar, Rashid Ahmed A. Attar, Christopher G. Lott
  • Publication number: 20090268684
    Abstract: Systems and methodologies are described that facilitate quality of service (QoS) differentiation and/or prioritization across a plurality of base stations included in wireless communication systems. The system can include components and/or devices that obtain resource allocations for cells controlled by a local base station, ascertains whether or not the resource allocations satisfy quality of service targets associated with data flows traversing through cells controlled by the local base station, and dispatches inter cell interference coordination indicators to remote base stations that have a proximate relationship defined by an X2 channel between the local base station and the remote base stations.
    Type: Application
    Filed: April 28, 2009
    Publication date: October 29, 2009
    Applicant: QUALCOMM INCORPORATED
    Inventors: Christopher G. Lott, Amir Farajidana
  • Patent number: 7411923
    Abstract: Reverse Link (RL) data rate allocation in a High Data Rate (such as 1xEV-DO) system as a function of Forward Link (FL) channel quality. Rate shaping of a throughput profile for multiple Access Terminals (ATs) is performed by adjusting transition probabilities associated with a data rate allocation algorithm. The transition probabilities are adjusted to encourage transitions in a desired direction. In one embodiment, the transition probabilities are adjusted as a function of the FL Signal to Interference and Noise Ratio Ratio (SINR), such as measured per serving sector or as a captured sum total of FL SINR. In another embodiment, the transition probabilities are adjusted as a function of the historical loading condition of the system. In still another embodiment, the transition probabilities are adjusted as a function of differences in rise-over-thermal values between neighboring sectors.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: August 12, 2008
    Assignee: QUALCOMM Incorporated
    Inventors: Rashid A. Attar, Christopher G. Lott
  • Patent number: 7411974
    Abstract: Reverse Link (RL) data rate allocation in a High Data Rate (such as 1xEV-DO) system as a function of Forward Link (FL) channel quality. Rate shaping of a throughput profile for multiple Access Terminals (ATs) is performed by adjusting transition probabilities associated with a data rate allocation algorithm. The RL maximum data rate per AT is adjusted to reduce the loading in a designated area and result in rate shaping of the cell and/or sector. In one embodiment, the maximum data rates are adjusted as a function of the FL Signal to Interference and Noise Ratio (SINR), such as measured per serving sector or as a captured sum total of FL SINR. In still another embodiment, the maximum data rates are adjusted as a function of differences in rise-over-thermal values between neighboring sectors.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: August 12, 2008
    Assignee: QUALCOMM Incorporated
    Inventors: Rashid A. Attar, Christopher G. Lott
  • Patent number: 6970437
    Abstract: An access terminal (206) is configured for wireless communication with an access network (204) within a sector (1032). The access terminal (206) includes a transmitter (2608) for transmitting a reverse traffic channel to the access network (204), an antenna (2614) for receiving signals from the access network (204), a processor (2602) and memory (2604) in electronic communication with the processor (2602). Instructions are stored in the memory (2604). The instructions are executable estimate a current value of a reverse activity bit (1444) transmitted by the access network (204). Per flow power allocation may be decreased on increased based on an estimated current value of the reverse activity bit.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: November 29, 2005
    Assignee: Qualcomm Incorporated
    Inventors: Christopher G. Lott, Naga Bhushan, Rashid A. Attar, Jean Put Ling Au, Donna Ghosh
  • Publication number: 20040202136
    Abstract: Reverse Link (RL) data rate allocation in a High Data Rate (such as 1xEV-DO) system as a function of Forward Link (FL) channel quality. Rate shaping of a throughput profile for multiple Access Terminals (ATs) is performed by adjusting transition probabilities associated with a data rate allocation algorithm. The RL maximum data rate per AT is adjusted to reduce the loading in a designated area and result in rate shaping of the cell and/or sector. In one embodiment, the maximum data rates are adjusted as a function of the FL Signal to Interference and Noise Ratio (SINR), such as measured per serving sector or as a captured sum total of FL SINR. In still another embodiment, the maximum data rates are adjusted as a function of differences in rise-over-thermal values between neighboring sectors.
    Type: Application
    Filed: November 14, 2002
    Publication date: October 14, 2004
    Inventors: Rashid A. Attar, Christopher G. Lott
  • Publication number: 20040095960
    Abstract: Reverse Link (RL) data rate allocation in a High Data Rate (such as 1xEV-DO) system as a function of Forward Link (FL) channel quality. Rate shaping of a throughput profile for multiple Access Terminals (ATs) is performed by adjusting transition probabilities associated with a data rate allocation algorithm. The transition probabilities are adjusted to encourage transitions in a desired direction. In one embodiment, the transition probabilities are adjusted as a function of the FL Signal to Interference and Noise Ratio Ratio (SINR), such as measured per serving sector or as a captured sum total of FL SINR. In another embodiment, the transition probabilities are adjusted as a function of the historical loading condition of the system. In still another embodiment, the transition probabilities are adjusted as a function of differences in rise-over-thermal values between neighboring sectors.
    Type: Application
    Filed: November 14, 2002
    Publication date: May 20, 2004
    Inventors: Rashid A. Attar, Christopher G. Lott