Title:
無線メッセージの局所的にアクティブにされた高速アクティブスケジューリングをもつ無線メッシュネットワーク
Document Type and Number:
Japanese Patent JP5207192
Kind Code:
B2
Abstract:
A wireless mesh network is formed by nodes having a regular active schedule for transmitting and receiving messages, and a fast active schedule mode that is locally activated when a demand exists for transmission of a larger number of messages. As each node transmits a message to another node, the transmitting node includes a message buffer queue parameter that indicates the number of messages in the transmitting nodes, pending message queue. The receiving node determines, based upon the message buffer queue parameter received and its own capacity, whether to continue on the regular schedule, or to activate the fast active schedule. If the fast active schedule is activated, the receiving node sends a special acknowledge message back to the sending node, so that both nodes will transmit and receive messages over a fast active schedule link until the message buffer of the sending node has been reduced and the fast active schedule can be deactivated in favor of the regular active schedule.
Inventors:
Aus Kelly M
Ostby Philip G
Ostby Philip G
Application Number:
JP2009530397A
Publication Date:
June 12, 2013
Filing Date:
September 25, 2007
Export Citation:
Assignee:
Rosemount Incorporated
International Classes:
H04W52/02; H04L47/30; H04W28/02; H04W84/18
Domestic Patent References:
| JP2003501941A | ||||
| JP2006527523A |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo