Message Analyser and Analysis Method

• US 20080151760A1
• Filed: 07/28/2004
• Published: 06/26/2008
• Est. Priority Date: 08/05/2003
• Status: Active Grant

• Current Assignee: Rohde & Schwarz GmbH & Company KG
• Original Assignee: Rohde & Schwarz GmbH & Company KG
• Inventors: Michl, Andreas
• Granted Patent: US 8,189,490 B2
• Time in Patent Office: Days
• US Class Current: 370/241
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 43/045 for graphical visualisation of monitoring data
• CPC Class Codes: H04L 43/06 Generation of reports
• CPC Class Codes: H04L 43/067 using time frame reporting
• CPC Class Codes: H04L 43/18 Protocol analysers
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

A message analysis device serves for the analysis of messages transmitted via service access points on layers of an OSI reference model. The message analysis device comprises a storage device, for storing messages, a selection device, for reading a series of sequential messages and a display device, for the display of at least one first region and one second region. In the first region, a series of messages read by the selection device from the memory device can be displayed as a list. The selection device determines a characteristic feature of messages for at least one service access point, transmitted by the service access point, whereby the curve for the characteristic feature may be displayed on the display device in the second region.

Claims

1. A message analyzer for analyzing messages which are transmitted via service access points from layers of an Open Systems Interconnection (OSI) reference model of an end system of a subscriber of a mobile telephone system, the message analyzer comprising:

a storage device for storing messages; and

a selector for reading in a sequence of temporally successive messages;

a display device for displaying a first region and a second region, wherein

the sequence of messages is read in by means of the selector from the storage device and displayed listed in the first region, wherein

the selector determines, for at least one service access point, a first characteristic feature of the messages which are transmitted via the one service access point and a course of the first characteristic feature is displayed on the display device in the second region.

2. A message analyzer according to claim 1, wherein:

the selector determines a second characteristic feature for messages which are transmitted via a plurality of service access points of a layer of the OSI reference model, the a course of the second characteristic feature is displayed on the display device in the second region.

3. A message analyzer according to claim 1, wherein:

the sequence of messages read in by the selector is dependent upon a selection with which a specific point of the course of the first characteristic feature is selectable in the second region.

4. A message analyzer according to claim 3, wherein:

at least one specific point can be is marked by a marking in the course displayed in the second region and, upon selection of the marking, a sequence of messages which corresponds to the specific point is read in from the storage device.

5. A message analyzer according to claim 3, wherein:

based on the additional items of information stored during storage of messages in the storage device, markings are produced automatically by of the selector.

6. A message analyzer according to claim 1, wherein:

the course of the first characteristic feature is displayed in the second region in a coordinate system, wherein the X axis of the coordinate system is a time axis.

7. A message analyzer according to claim 6, wherein:

a third region of the course displayed in the second region which corresponds respectively to the sequence of messages currently displayed in the first region, is highlighted.

8. A message analyzer according to claim 1, wherein:

the course of the first characteristic feature is displayed in the second region in a coordinate system, wherein the X axis of the coordinate system is subdivided into intervals each having an identical number of messages.

9. A message analyzer according to claim 1, wherein:

the first characteristic feature is a number of transmitted messages per interval of time or a data load of a layer of the OSI reference model or a number of messages transmitted repeatedly.

10. A method using a computer or a digital signal processor for analyzing messages which are transmitted via service access points from layers of an OSI reference model of an end system of a subscriber of a mobile telephone system and which are stored in a storage device, comprising the steps of:

reading in a sequence of messages by a selector; and

displaying the sequence of messages, which is read in by the selector, in tabular form in a first region of a display device, wherein

a first characteristic feature of messages which are transmitted via at least one service access point is determined by the selector

and a course of the first characteristic feature is displayed in a second region of the display device.

11. A method according to claim 10, further comprising:

determining, by the selector, a second characteristic feature of messages which are transmitted via a plurality of service access points of a layer of the OSI reference model.

12. A method according to claim 10, further comprising:

selecting, in the second region, a specific point of the course of the first characteristic feature; and

reading in, by the selector, a sequence of messages dependent upon the specific point.

13. A method according to claim 10, wherein:

in the second region, at least one specific point of the course of the first characteristic feature is marked by at least one marking, and

upon selection of the marking, dependent upon the specific point marked by the marking, a corresponding sequence of messages is read in by the selector from the storage device.

14. A method according to claim 13, wherein:

during storage of the messages in the storage device, additional items of information are stored, and

dependent upon the additional items of information, markings are produced automatically in the second region by the selector.

15. A method according to claim 10, wherein:

at least one characteristic feature is displayed in the second region in a coordinate system, wherein the X axis of the coordinate system is a time axis.

16. A method according to claim 15, wherein:

a third region which corresponds respectively to the sequence of messages displayed in tabular form in the first region is displayed highlighted in the second region.

17. A method according to claim 10, wherein:

the first characteristic feature is displayed in the second region in a coordinate system, wherein the X axis of the coordinate system is sub-divided into intervals each having an identical number of messages.