RADIO TRANSMISSION/RADIO RECEPTION DEVICE AND METHOD FOR COMMUNICATION WITHIN A, IN PARTICULAR WIRELESS, MOTOR VEHICLE COMMUNICATION SYSTEM INTERACTING IN AD-HOC FASHION

• US 20140126557A1
• Filed: 10/26/2011
• Published: 05/08/2014
• Est. Priority Date: 06/21/2011
• Status: Active Grant

• Current Assignee: Yunex GmbH
• Original Assignee: Siemens AG
• Inventors: Kasslatter, Fritz, Ritter, Thomas
• Granted Patent: US 9,893,869 B2
• Time in Patent Office: Days
• US Class Current: 370/336
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

The invention relates to a radio transmission/radio reception device and to a method for communication within a, in particular wireless, motor vehicle communication system interacting in ad-hoc fashion which are configured such that the radio transmission/radio reception device emits a piece of information about the scope of envisaged reports, at least one further radio transmission/radio reception device receives the information, and the further radio transmission/radio reception device takes the received information as a basis for stipulating a frequency for the emission of chronologically successive reports.

Claims

1. A radio transmission/radio reception device (10, 20, 30, 40, 50) for communication within a, in particular wireless, motor vehicle communication system interacting in ad-hoc fashion, characterized in that it is designed in such a manner that

a) it emits an information item about the range of messages (12, 22, 32, 42, 52) provided,

b) at least one further radio transmission/radio reception device (10, 20, 30, 40, 50) receives the information and

c) on the basis of the received information, a frequency of the emission of successive messages over time is specified by the further radio transmission/radio reception device (10, 20, 30, 40, 50).

2. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in claim 1, characterized in that it is designed for the communication between road users (10, 20, 30, 40, 50) among one another and/or between road users (10, 20, 30, 40, 50) and traffic infrastructure.

3. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the preceding claims, characterized in that it is designed for data transmission according to a dedicated short-range radio communication standard, particularly the so-called Dedicated Short Range Communication, “

DSRC”

.

4. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the previous claim, characterized in that it is designed for data transmission according to the so-called Wireless Access in Vehicular Environments, “

WAVE”

, standard or derivatives thereof.

5. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, characterized in that it is designed for data transmission at least partially according to IEEE 1609.4 and/or ETSI Intelligent Transportation Systems, ITS standards or its derivatives.

6. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the two preceding claims, characterized in that it is designed for a data transmission at least partially according to IEEE 802.11 standards or its derivatives, particularly IEEE 802.11p.

7. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, characterized in that it is designed for a higher-priority first, particularly safety-related, data transmission according to IEEE 802.11e or IEEE 802.11p.

8. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of claims 6 to 7, characterized in that it is designed for a second lower-priority, particularly subscriber-individual, data transmission according to IEEE 802.11 a/b/g.

9. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the preceding claims, characterized in that the messages comprise status messages about the state of a road user (10, 20, 30, 40, 50).

10. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the preceding claims, which is designed in such a manner that for the emission of messages, a control channel, particularly the so-called control channel “

CCH”

, a service channel, particularly the so-called service channel “

SCH”

, is utilized.

11. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the preceding claims, characterized in that the information about the range of messages (12, 22, 32, 42, 52) provided is based on messages prepared for dispatch by the radio transmission/radio reception device (10, 20, 30, 40, 50), present in a data memory (11, 21, 31, 41, 51) allocated to the radio transmission/radio reception device (10, 20, 30, 40, 50).

12. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the preceding claims, characterized in that the range is designed as a first value belonging to the integer set of numbers, reproducing the number of the messages to be dispatched, designated especially as “

channelLoadtoNeighbors”

.

13. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that the first value is conveyed at least with a part of messages to be transmitted, preferably each message.

14. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that the first value is conveyed within a message field of the data transmission of the message.

15. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, characterized in that the message field is designed as a field having a fixed bit width, particularly 4 bits wide.

16. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the two preceding claims, which is designed in such a manner that it, as a further radio transmission/radio reception device (10, 20, 30, 40, 50), forms on the basis of first values received by, especially all, adjacent radio transmission/radio reception devices, a second value belonging to the integer set of numbers, designated especially as “

channelLoadfromNeighbors”

.

17. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that when a first threshold value, designated especially as “

channelLoadfromNeighbors_active”

, is exceeded by the second value, the frequency of the emission of successive messages over time is specified at a third value.

18. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that when a second threshold value, designated especially as “

channelLoadfromNeighbors_restrictive”

, is exceeded by the second value, the frequency of the emission of successive messages over time is specified at a fourth value.

19. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that when the second threshold value is undercut by the second value, the frequency of the emission of successive messages over time is specified at the third value.

20. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that when the first threshold value is undercut by the second value, the frequency of the emission of successive messages over time is specified at a fifth value.

21. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that the first and/or second threshold value are specified in such a manner that the difference of their values is greater than zero, especially five.

22. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, which is designed in such a manner that the third, fourth and/or fifth value, according to defined system states, forms a decentralized load control designated as “

Decentralized Congestion Control”

prescribed especially according to the ETSI TS 102 687 standard.

23. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the preceding claims, which is designed in such a manner that communication with road users takes place at least partially according to a mobile radio standard such as GSM, UMTS or derivatives thereof.

24. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in one of the two preceding claims, characterized in that it is designed for communication with road users at least partially according to the European standard ETSI TC ITS, the American so-called “

Vehicle Safety Communications Program, VSC”

or the Japanese “

Advanced Vehicle Safety Program, AVS”

.

25. The radio transmission/radio reception device (10, 20, 30, 40, 50) as claimed in the preceding claim, characterized in that it is designed for communication with road users at least partially according to the ISO standard “

continuous-air long and medium range”

, CALM.

28. The method as claimed in one of the two preceding claims, in which the data transmission takes place according to a dedicated short-range radio communication standard, particularly the so-called Dedicated Short-Range Communication “

DSRC”

.

29. The method as claimed in the preceding claim, in which the data transmission takes place according to the so-called Wireless Access in Vehicular Environments, “

WAVE”

, standard or derivates thereof.

30. The method as claimed in the preceding claim, in which the data transmission takes place at least partially according to IEEE 1609.4 and/or ETSI Intelligent Transportation Systems, ITS standards or its derivatives.

31. The method as claimed in one of the two preceding claims, in which the data transmission takes place at least partially according to IEEE 802.11 standards or its derivatives, particularly IEEE 802.11p.

32. The method as claimed in the preceding claim, in which a higher-priority first, particularly safety-related, data transmission is formed according to IEEE 802.11e or IEEE 802.11p.

33. The method as claimed in one of claims 30 to 31, in which a lower-priority second, particularly subscriber-individual, data transmission is formed according to IEEE 802.11 a/b/g.

34. The method as claimed in one of the preceding claims, in which the messages comprise status messages about the state of a road user (10, 20, 30, 40, 50).

35. The method as claimed in one of the preceding claims, in which for the emission of messages, a control channel, particularly the so-called control channel “

CCH”

, a service channel, particularly the so-called service channel “

SCH”

, is utilized.

36. The method as claimed in one of the preceding claims, in which the information about the range of messages (12, 22, 32, 42, 52) provided is based on messages prepared for dispatch by the radio transmission/radio reception device (10, 20, 30, 40, 50), present in a data memory (11, 21, 31, 41, 51) allocated to the radio transmission/radio reception device (10, 20, 30, 40, 50).

37. The method as claimed in one of the preceding claims, in which the range is reproduced as a first value belonging to the integer set of numbers, reproducing the number of the messages to be dispatched, designated especially as “

channelLoadtoNeighbors”

.

38. The method as claimed in the preceding claim, in which the first value is conveyed at least with a part of messages to be transmitted, preferably each message.

39. The method as claimed in the preceding claims, in which the first value is conveyed within a message field of the data transmission of the message.

40. The method as claimed in the preceding claim, in which a field having a fixed bit width, particularly 4 bits wide, is used for the message field.

41. The method as claimed in one of the two preceding claims, in which a further radio transmission/radio reception device (10, 20, 30, 40, 50) forms on the basis of first values received by, especially all, adjacent radio transmission/radio reception devices, a second value belonging to the integer set of numbers, designated especially as “

channelLoadfromNeighbors”

.

42. The method as claimed in the preceding claim, in which, when a first threshold value, designated especially as “

channelLoadfromNeighbors_active”

, is exceeded by the second value, the frequency of the emission of successive messages over time is specified at a third value.

43. The method as claimed in the preceding claim, in which, when a second threshold value, designated especially as “

channelLoadfromNeighbors_restrictive”

, is exceeded by the second value, the frequency of the emission of successive messages over time is specified at a fourth value.

44. The method as claimed in the preceding claim, in which, when the second threshold value is undercut by the second value, the frequency of the emission of successive messages over time is specified at the third value.

45. The method as claimed in the preceding claim, in which, when the first threshold value is undercut by the second value, the frequency of the emission of successive messages over time is specified at a fifth value.

46. The method as claimed in the preceding claim, in which the first and/or second threshold value are specified in such a manner that the difference of their values is greater than zero, especially five.

47. The method as claimed in the preceding claim, in which the third, fourth and/or fifth value is formed according to defined system states of a decentralized load control designated as “

Decentralized Congestion Control”

prescribed especially according to the ETSI TS 102 687 standard.

48. The method as claimed in one of the preceding claims, in which communication with road users takes place at least partially according to a mobile radio standard such as GSM, UMTS or derivatives thereof.

49. The method as claimed in the preceding claims, in which the communication with road users takes place at least partially according to the European standard ETSI TC ITS, the American so-called “

Vehicle Safety Communications Program, VSC”

or the Japanese “

Advanced Vehicle Safety Program, AVS”

.

50. The method as claimed in the preceding claim, in which the communication with road users takes place at least partially according to the ISO standard “

continuous-air long and medium range”

, CALM.

26. A method for communication within a, in particular wireless, motor vehicle communication system interacting in ad-hoc fashion, characterized in that

a) a first radio transmission/radio reception device (10, 20, 30, 40, 50) emits an information item about the range of messages (12, 22, 32, 42, 52) provided,

b) at least a further radio transmission/radio reception device (10, 20, 30, 40, 50) receives the information and

c) on the basis of the received information, a frequency of the emission of successive messages over time is specified by the further radio transmission/radio reception device (10, 20, 30, 40, 50).

27. The method as claimed in the preceding claim, in which the communication between road users (10, 20, 30, 40, 50) takes place among one another and/or between road users (10, 20, 30, 40, 50) and traffic infrastructure.