WIRELESS NETWORK TIME SYNCHRONIZING METHOD

Title:

WIRELESS NETWORK TIME SYNCHRONIZING METHOD

Document Type and Number:

Japanese Patent JP3865223

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a wireless network time synchronizing method, by which a time synchronization can be established with operations in autonomously distributed manner, without each node receiving a reference time from an outside, and without requiring a network topology in a multi-hop wireless network, in which a plurality of nodes are arranged in distributed manner.
SOLUTION: A procedure of synchronizing a clock of one wireless channel device (slave) to a frame synchronizing clock of the other wireless channel device (master) of a pair of facing wireless nodes which share a wireless link, and a procedure of synchronizing the clock of the master to the clock of the slave in the wireless node in which the master and the slave sets are accommodated are included.

Inventors:

Keita Tabata
Kishi Yoji
Satoshi Konishi
Namba Shinobu
Shinichi Nomoto

Application Number:

JP2002070258A

Publication Date:

January 10, 2007

Filing Date:

March 14, 2002

Export Citation:

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Assignee:

Kddi research institute

International Classes:

H04L7/00; H04L12/28; H04B7/26; (IPC1-7): H04L7/00; H04B7/26; H04L12/28

Domestic Patent References:

JP2000307557A
JP11266236A
JP2000032030A
JP10308697A
JP2000049738A
JP5235833A
JP4275737A
JP4225647A
JP3250829A
JP3106245A

Other References:

Takashi Sato,Synchronizing Cycle Master to External Timing Information via Cycle Slave,IEEE P1394.1 Documents,米国,IEEE,1998年 1月26日,BR008r00,1-14,URL,http://grouper.ieee.org/groups/1394/1/Documents/BR008r00.pdf

Attorney, Agent or Firm:

Kaori Tanaka
Michito Hiraki
Sanji Tanabe

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