Title:
EXCHANGE CONTROLLER FOR SIGNAL MESSAGE
Document Type and Number:
Japanese Patent JP3258523
Kind Code:
B2
Abstract:
PURPOSE: To prevent the occurrence of unclearness without using any sequence number by repeatedly transmitting a response message and transmitting a confirm message in response to the reception of respective response messages.
CONSTITUTION: A call connection controller(CCC) 10 establishes call connection by communicating with a signal protocol controller(SPC) 20. The CCC 10 controls the connection through the same method during a call. Namely, the CCC 10 supplies a signal message to the SPC 20 and next stores this message in a signal message transmission buffer 30. Afterwards, the SPC 20 unloads the respective messages one by one in order storing the messages in the buffer 30 and transmits the respective unloaded messages through an ordinary radio link modem 50 by a link 50. Then, the reception of first signal message copy is repeatedly reported to the closest terminal. When the first copy of response is received from a far end terminal, the closest terminal finishes transmitting the signal message.
Inventors:
Bukharat Tara Chand Dosi
Richard Paul Ejac
Sanji Nanda
Richard Paul Ejac
Sanji Nanda
Application Number:
JP13750695A
Publication Date:
February 18, 2002
Filing Date:
May 12, 1995
Export Citation:
Assignee:
AT&T CORP.
International Classes:
H04L1/08; H04L1/18; H04L29/06; H04L29/08; H04L1/12; (IPC1-7): H04L29/08; H04L1/08
Domestic Patent References:
| JP621924A | ||||
| JP3289834A | ||||
| JP8154096A | ||||
| JP3135239A | ||||
| JP5160815A | ||||
| JP5760751A | ||||
| JP1209829A | ||||
| JP3107229A | ||||
| JP6112874A |
Attorney, Agent or Firm:
Hirofumi Mitsumata