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Approach for managing communications channels based on performance and transferring functions between participants in a communications arrangement

Patent 7222166 Issued on May 22, 2007. Estimated Expiration Date: Icon_subject January 16, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventors

Assignee

Application

No. 10052019 filed on 01/16/2002

US Classes:

709/223, COMPUTER NETWORK MANAGING709/208, MASTER/SLAVE COMPUTER CONTROLLING455/442Soft handoff

Examiners

Primary: Walsh, John B.

Attorney, Agent or Firm

Foreign Patent References

  • WO 00/60896 WO 10/01/2000
  • WO 01/03379 WO 01/01/2001

International Classes

G06F 15/173
G06F 15/16
G06G 15/16

Abstract

A novel approach for selecting communications channels and participants with which to communicate based on channel performance and transferring management functions between participants in a communications arrangement is disclosed. According to one aspect of the invention, a particular channel is selected based on channel performance and channel identification data is provided to a participant that sends a response on a channel selected based on the channel identification data. According to another aspect of the invention, a particular participant is selected from a group of participants based on the performance of a particular channel. According to yet another aspect, an associate master participant is selected to assume responsibilities for functions assigned to the master participant if any of a set of handoff criteria are satisfied. For example, the associate master participant may assume the role of the master participant if the master participant can no longer perform the functions.

Other References

  • Lawrey; Eric et al., “Adaptive Frequency Hopping for Multiuser OFDM,” Second International Conference on Information, Communications & Signal Processing, ICICS'99, Dec. 7-10, 1999, pp. 1-5.
  • Zander, J. et al., “Adaptive frequency hopping in HF communications,” IEE Proc-Commun., vol. 142, No. 2, Apr. 1995, pp. 99-105.
  • Martin Johnson, “HiperLAN/2-The Broadband Radio Transmission Technology Operating in the 5 GHz Frequency Band,” pp. 1-22, 1999.
  • European Patent Office, “Communication pursuant to Article 96(2) EPC,” Jun. 22, 2004, 5 pages.
  • “Clean Version of Amended Claims for Response to Official Comm. From Patent Examiner,” EPO Patent Application No. 02709170.1, pp. 1-15.
  • Walter L. Davis, A MAC Layer submission for the High Rate 802.15.3 Standard, Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs), Sep. 2000, XP 002220853, pp. 1-57.
  • Jeyhan Karaoguz, “Multi-Rate QAM Physical Layer (8-40 Mbps) Proposal for High Rate WPAN,” Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs), Oct. 20, 2000, XP002220854, pp. 1-39.
  • IEE Proc.-Commun., vol. 142, No. 2, Apr. 1995, entitled “Adaptive frequency hopping in HF communications”, by J. Zander, PhD and G. Malmgren, MSc, (pp. 99-105).
  • Fifth International Symposium on Signal Processing and its Applications, ISSPA '99 Brisbane, Australia, Aug. 22-25, 1999, entitled “Multiuser OFDM”, by E. Lawrey, (pp. 761-764).
  • Gan et al., “Adaptive Frequency Hopping Implementation Proposals for IEEE 802.15.1/2 WPAN,” Bandspeed Pty Ltd., Nov. 2000, pp. 1-28.
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