Title:
COMMUNICATION SYSTEM, COMMUNICATION TERMINAL, SERVER AND DATA TRANSFER CONTROL PROGRAM
Document Type and Number:
Japanese Patent JP3707546
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a communication system for communicating information for management/control between a plurality of communication terminals and a server without degrading the efficiency of communication.
SOLUTION: In the communication system for transmitting and receiving communication frames between a plurality of the communication terminals and the server, a frame for control indicating control information required for communication between the communication terminal and the server, whose size is smaller than the communication frame, is included in the preamble part of each communication frame and transferred. In the case that there is no communication frame to be transmitted, the frame for the control is transferred as an independent frame.
Inventors:
Masaki Umayabashi
Kazuo Takagi
Makoto Shibuya
Kazuo Takagi
Makoto Shibuya
Application Number:
JP2002020373A
Publication Date:
October 19, 2005
Filing Date:
January 29, 2002
Export Citation:
Assignee:
NEC
International Classes:
H04J3/00; H04J3/16; H04L12/44; (IPC1-7): H04L12/44
Domestic Patent References:
| JP200049823A | ||||
| JP200392582A | ||||
| JP884132A |
Foreign References:
| WO2001093498A2 |
Attorney, Agent or Firm:
Masao Matsumoto