Title:
COMMUNICATION METHOD
Document Type and Number:
Japanese Patent JP3207670
Kind Code:
B2
Abstract:
PURPOSE: To obtain the communication method by which configuration revision of a communication system is flexibly coped with and the communication efficiency is improved.
CONSTITUTION: In the case of 1:N communication between a base station 10 and plural secondary stations 11, each secondary station 11 receiving a multiple address communication notice of communication start from the base station 10 calculates a time tn based on a random number and sends a reply to the base station after the lapse of the time tn thereto, then collision of communication from the plural secondary stations X1-Xn to the base station 10 is controlled. Furthermore, an optional random umber is sent from the secondary stations to the base station in the case of transmission of a reply and the base station informs the received random number to the secondary stations in a multiple address communication way, then each secondary station detects collision of communication and makes re-transmission on the occurrence of collision.
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Inventors:
Yuko Saeki
Keisuke Okano
Noriyuki Ogawa
Keisuke Okano
Noriyuki Ogawa
Application Number:
JP9516894A
Publication Date:
September 10, 2001
Filing Date:
May 09, 1994
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04B7/24; H04L12/28; H04L12/40; (IPC1-7): H04L12/28
Attorney, Agent or Firm:
Masamichi Matsuda