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Method and circuit for monitoring and optionally controlling transmission capacility of data transmission channel

A technology for transmission capacity and data transmission, which is applied to the selection device, time division multiplexing selection device, selection device and other directions of the multiplexing system, and can solve the problem that the transmission capacity cannot be measured by the user circuit.

Inactive Publication Date: 2005-02-02
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the user circuit connected to each user port line sometimes cannot measure the transmission capacity provided by the connecting circuit.

Method used

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  • Method and circuit for monitoring and optionally controlling transmission capacility of data transmission channel
  • Method and circuit for monitoring and optionally controlling transmission capacility of data transmission channel

Examples

Experimental program
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Embodiment Construction

[0032] The shown equipment comprises a telephone terminal TEL, a facsimile terminal FX and a home or personal computer PC. Of all the devices of the subscriber station SUB which are connected to the connection circuit COC, for example the network termination circuit (so-called NT circuit) of the ISDN communication network, only the home or personal computer PC mentioned below plays a role in the communication connection. In this case, the personal computer PC and the connection circuit COC cooperate to represent a data device between which data signals are to be transmitted to another or another data device which will be described later.

[0033] The connecting circuit COC is connected to a switching device via a series of communication channels B1, B2 and D, in which case only one associated coupling device SW is used to represent said switching device. In the present example, the dial-in node POP, which represents the other data devices described above, is connected via a se...

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PUM

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Abstract

The invention concerns a method for monitoring and, optionally, controlling the transmission capability of a data transmission channel (D, TL1, TL2) existing between two computerised devices (PC, COC, POP), which consists in transmitting control signals from at least one computerised device (PC, COC) regularly or in targeted mode, via the data transmission channel (D, TL1, TL2), to the other computerised device (POP), the latter sending in return response signals. The time interval between the transmission of a control signal and the arrival of a response signal is compared to a threshold temporal value, and a transmission capability signal is formed from the result of said comparison. Said signal is, particularly when said time interval exceeds the threshold temporal value, a warning signal indicating that the data transmission channel (D, TL1, TL2) is overloaded.

Description

technical field [0001] The invention relates to a method and a device for monitoring and possibly controlling the transmission capacity of a data transmission link. Background technique [0002] The data transmission link is located between two data devices and is used to transmit signals, especially data signals, and a main channel with a small transmission capacity is used on the data transmission link. If necessary, the The size of the transmission capacity is determined by the effect not controlled by the two data devices, and the main channel can be replaced or supplemented by one or more secondary channels with larger transmission capacity, [0003] Wherein, some inspection signals are transmitted through the main channel at certain certain moments or periodically, [0004] Wherein, measuring the delay time for transmission of the test signal, [0005] And wherein, when the relevant delay time exceeds a certain threshold value, a signal indicating the overload state ...

Claims

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Application Information

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IPC IPC(8): H04Q11/04
CPCH04Q11/0457
Inventor P・施奈德S・盖尔
Owner SIEMENS AG