Inter-mobile-terminal testing method in cellular automobile telephone system

• US 5,357,557 A
• Filed: 11/05/1992
• Issued: 10/18/1994
• Est. Priority Date: 11/06/1991
• Status: Expired due to Term

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Sakakura, Yukinori
• Primary Examiner(s): Chin, Stephen
• Assistant Examiner(s): Loomis, Paul
• Application Number:
  US07/971,596
• Time in Patent Office: 712 Days
• Field of Search: 375/3.1, 375/10, 455/33.1, 455/33.2, 455/67.4, 455/56.1, 379/1, 379/27, 379/29, 379/31, 379/50, 379/59, 379/34, 379/32
• US Class Current: 379/27.06
• CPC Class Codes: H04M 1/24 Arrangements for testing
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements

Abstract

In an inter-mobile-terminal testing method in a cellular automobile telephone system, test sequence information indicating a test sequence, next terminal number information indicating a terminal which is to make a next call, and test data are transmitted and down-loaded from a cellular automobile telephone exchange to each terminal. A test start command is output from the cellular automobile telephone exchange to the first terminal serving as a start point. In response to the test start command, the first terminal makes a call to the second terminal as a next terminal in accordance with the next terminal number information so as to transmit the test data thereto. The second terminal transmits connection determination information indicating success in connection of the call and data determination information indicating correct reception of the test data to the third terminal as a next terminal together with the test data. The same procedure is subsequently executed up to the nth terminal as a last terminal. An accumulated result of the connection determination information between the respective terminals and the data determination information is acquired in the cellular automobile telephone exchange.

Claims

1. An inter-mobile-terminal testing method in a cellular automobile telephone system including a cellular automobile telephone exchange and test mobile terminals respectively arranged in cells, a communication test being performed between said cells, comprising the steps of:

transmitting and down-loading test sequence information indicating a test sequence, next terminal number information indicating a terminal which is to make a next call, and test data from said cellular automobile telephone exchange to each of said terminals;

outputting a test start command from said cellular automobile telephone exchange to a first terminal serving as a start point;

causing said first terminal to make a call, through said cellular automobile exchange, to a second terminal as a next terminal in accordance with the next terminal number information in response to the test start command so as to transmit the test data thereto;

causing said second terminal to transmit connection determination information indicating success in connection of the call and data determination information indicating correct reception of the test data through said cellular automobile exchange to a third terminal as a next terminal together with the test data;

subsequently executing the same procedure up to an nth terminal as a last terminal; and

acquiring an accumulated result of the connection determination information between said respective terminals and the data determination information in said cellular automobile telephone exchange.

2. A method according to claim 1, wherein the step of transmitting and down-loading the test sequence information comprises the step of also down-loading number information of said first terminal as the start point to each terminal, and further comprising the steps of causing each of said second to nth terminals to transmit test completion information to a corresponding one of said first to (n-1)th terminals upon completion of reception of the information, causing each of said first to (n-1)th terminals to refer to the number information of said first terminal and transmit an accumulated result of the connection determination information and the data determination information up to a self-terminal to said first terminal if the test completion information is not received within a predetermined period of time, and causing said first terminal to transmit the accumulated result, which is the received information, to said cellular automobile telephone exchange.