Method for simulating a communication system, simulation system for a communication system and computer program

• US 10,367,695 B2
• Filed: 10/23/2015
• Issued: 07/30/2019
• Est. Priority Date: 10/23/2014
• Status: Active Grant

• Current Assignee: Volkswagen AG
• Original Assignee: Volkswagen AG
• Inventors: Simsek, Burak, Gunther, Hendrik-Jorn
• Primary Examiner(s): Ochoa, Juan C
• Application Number:
  US14/921,813
• Publication Number:
  US 20160119191A1
• Time in Patent Office: 1,376 Days
• Field of Search: 703 13, 703 21, 703 6
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 41/145 involving simulating, designing, planning or modelling of a network
• CPC Class Codes: H04W 16/22 Traffic simulation tools or models

Abstract

A method for simulating a communication system, and simulation system for a communication system and computer program, the communication system having a communication protocol which regulates a communication between at least two transmitter-receivers of the communication system via a common communication channel in such a way that a first transmitter-receiver transmits a data packet only when no use of the communication channel by a second transmitter-receiver is indicated to the first transmitter-receiver, includes sending a data packet by at least the first transmitter-receiver via the common communication channel even when at least the second transmitter-receiver is using the communication channel.

Claims

1. A method for simulating a communication system having a communication protocol which regulates a communication between at least two transmitter-receivers of the communication system via a common communication channel to only permit a first transmitter-receiver to transmit a data packet when no use of the common communication channel by a second transmitter-receiver is indicated to the first transmitter-receiver, the method comprising:

sending a data packet by at least the first transmitter-receiver via the common communication channel even when at least the second transmitter-receiver is using the common communication channel; and

damping the common communication channel above a predefined threshold along a downlink direction with respect to the first transmitter receiver;

wherein a channel detection of the first transmitter receiver cannot detect a data packet transmitted below the predefined threshold.

2. The method according to claim 1, further comprising:

modifying a return signal to include information about a release of the common communication channel irrespective of an actual usage of the common communication channel.

3. The method according to claim 2, the modifying step further comprising:

modifying the return signal to include a remaining time value until a release of the common communication channel of zero irrespective of an actually remaining time value.

4. The method according to claim 1, wherein a damped representation of an input signal on a first terminal of a circulator through the second transmitter-receiver is provided on a second terminal of the circulator.

5. The method according to claim 1, further comprising:

temporarily damping an additional direction from the group of the uplink direction and the downlink direction above the predefined threshold.

6. The method according to claim 5, further comprising:

transmitting a first representation of an input signal originating from the second transmitter-receiver via the uplink direction; and

transmitting a second representation of the input signal originating from the second transmitter-receiver via the downlink direction by way of a signal splitter.

7. The method according to claim 5,

wherein the temporary damping occurs by way of an isolator segment between the first transmitter-receiver and the second transmitter-receiver;

and

wherein a control element provides a control signal to the isolator segment, which effects a modification of the temporary damping such that a usage of the common communication channel by a second transmitter-receiver is indicated to the first transmitter-receiver.

8. A system for simulating a communication system having at least a first and a second transmitter-receiver and a communication protocol which regulates a communication between the at least two transmitter-receivers of the communication system via a common communication channel to only permit a first transmitter-receiver to transmit a data packet when no use of the common communication channel by a second transmitter-receiver is indicated to the first transmitter-receiver, the system comprising:

one of a computer, a processor, or a programmable hardware component configured to;

send a data packet by at least the first transmitter-receiver via the common communication channel even when at least the second transmitter-receiver is using the common communication channel; and

damp the common communication channel above a predefined threshold along a downlink direction with respect to the first transmitter receiver;

wherein a channel detection of the first transmitter receiver cannot detect a data packet transmitted below the predefined threshold.

9. The system according to claim 8, the one of a computer, a processor, or a programmable hardware component further configured to:

modify a return signal to include information about a release of the common communication channel irrespective of an actual usage of the common communication channel.

10. The system according to claim 9, the one of a computer, a processor, or a programmable hardware component further configured to:

modify the return signal to include a remaining time value until a release of the common communication channel of zero irrespective of an actually remaining time value.

11. The system according to claim 8, the one of a computer, a processor, or a programmable hardware component further configured to:

temporarily damp an additional direction from the group of the uplink direction and the downlink direction above the predefined threshold.

12. The system according to claim 11, the one of a computer, a processor, or a programmable hardware component further configured to:

transmit a first representation of an input signal originating from the second transmitter-receiver via the uplink direction; and

transmit a second representation of the input signal originating from the second transmitter-receiver via the downlink direction by way of a signal splitter.

13. A simulation system for a communication system having a communication protocol which regulates a communication between at least two hardware transmitter-receivers of the communication system via a common communication channel to only permit a hardware first transmitter-receiver to transmit a data packet when no use of the common communication channel by a hardware second transmitter-receiver is indicated to the first transmitter-receiver, comprising:

the at least two transmitter-receivers, including the first and second transmitter-receivers;

a circulator connected between the first transmitter receiver and the second transmitter receiver;

a first terminal of the circulator connected to the first transmitter-receiver;

a second terminal of the circulator connected to the second transmitter-receiver;

wherein at least the first transmitter-receiver is configured to transmit a data packet via the common communication channel even when at least the second transmitter-receiver is using the common communication channel;

wherein the circulator is configured to damp the common communication channel above a predefined threshold along a downlink direction with respect to the first transmitter receiver;

wherein a channel detection of the first transmitter receiver cannot detect a data packet transmitted below the predefined threshold; and

wherein the data packet originating from the first transmitter-receiver is provided on the second terminal of the circulator;

wherein a representation of an input signal originating from the second transmitter-receiver is damped above a predefined threshold, and provided on the first terminal of the circulator.

14. The simulation system according to claim 13,

wherein the first transmitter-receiver is connected to the second transmitter receiver via an isolator segment;

wherein the isolator segment effects a damping of an input signal originating from the second transmitter-receiver;

wherein the isolator segment is connected to a control element; and

wherein the control element provides a control signal to the isolator segment, which effects a modification of a damping such that a usage of the common communication channel by a second transmitter-receiver is temporarily indicated to the first transmitter-receiver.