System and method for device management on a dedicated short-range communication network

• US 8,274,405 B2
• Filed: 09/03/2008
• Issued: 09/25/2012
• Est. Priority Date: 09/03/2008
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Bos, Jeremy
• Primary Examiner(s): Mehmood, Jennifer
• Assistant Examiner(s): GIRMA, FEKADESELASS
• Application Number:
  US12/203,276
• Publication Number:
  US 20100052943A1
• Time in Patent Office: 1,483 Days
• Field of Search: None
• US Class Current: 340/991
• CPC Class Codes: G07B 15/063 using wireless information transmission between the vehicle and a fixed station identification of vehicles G08G
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 84/10 Small scale networks; Flat hierarchical networks

Abstract

A method of managing a Dedicated Short-Range Communication (DSRC) network in a vehicle having a primary DSRC system is provided. The method comprises detecting a secondary DSRC system operating in proximity to the vehicle and transmitting a suppression notice in response to detecting the secondary DSRC system, where the suppression notice conveys an instruction to the secondary DSRC system to suspend DSRC transmissions.

Claims

1. A method of managing a Dedicated Short-Range Communication (DSRC) network in a vehicle having a primary DSRC system, the method comprising:

detecting a secondary DSRC system that is operating in proximity to the vehicle;

transmitting a suppression notice from the primary DSRC system to the secondary DSRC system in response to detecting the secondary DSRC system, where the suppression notice conveys an instruction to the secondary DSRC system to suspend DSRC transmissions of the secondary DSRC system, wherein the suppression notice comprises a time period after which the secondary DSRC system is permitted to resume DSRC transmissions; and

suspending, at the secondary DSRC system in response to the instruction conveyed in the suppression notice, DSRC transmissions of the secondary DSRC system;

wherein suspending, at the secondary DSRC system in response to the instruction conveyed in the suppression notice, DSRC transmissions of the secondary DSRC system, comprises;

causing the secondary DSRC system to enter a suspended operational state in response to the instruction conveyed in the suppression notice, wherein the secondary DSRC system suspends DSRC operations of the secondary DSRC system and does not transmit DSRC transmissions during the suspended operational state to prevent interference with DSRC transmissions of the primary DSRC system.

2. The method of claim 1, wherein transmitting the suppression notice comprises transmitting the suppression notice utilizing a secondary communication channel distinct from the DSRC network.

3. The method of claim 2, wherein utilizing a secondary communication channel comprises transmitting the suppression notice utilizing a radio-frequency communication band.

4. The method of claim 2, wherein utilizing a secondary communication channel comprises transmitting the suppression notice utilizing a low-power, short-range wireless communication band.

5. The method of claim 2, wherein utilizing a secondary communication channel comprises transmitting the suppression notice utilizing a near-field communication band.

6. The method of claim 1, wherein transmitting the suppression notice comprises transmitting the suppression notice on a DSRC communication band of the DSRC communication network.

7. The method of claim 1, further comprising:

receiving a certificate invalidity notice from the secondary DSRC system in response to transmitting the suppression notice; and

operating the primary DSRC system in a secondary role on the DSRC network in response to receiving the certificate invalidity notice.

8. The method of claim 7, further comprising providing feedback to an operator of the vehicle in response to receiving the certificate invalidity notice.

9. The method of claim 1, wherein the secondary DSRC system comprises a cellular phone.

19. The method of claim 1, after suspending DSRC transmissions of the secondary DSRC system, further comprising:

transmitting an acknowledgement signal from the secondary DSRC system to the primary DSEC system to indicate reception of the suppression notice and responsiveness to the instruction conveyed therein.

20. The method of claim 1, further comprising:

resuming DSRC transmissions at the secondary DSRC system after expiration of the time period provided in the suppression notice.

10. A vehicle-based primary Dedicated Short-Range Communication (DSRC) system comprising:

a DSRC transceiver configured to transmit and receive DSRC signals on a DSRC network; and

a DSRC controller configured to operate the DSRC transceiver, where the DSRC controller is configured to detect a signal from a secondary DSRC system in proximity to the vehicle and to operate the DSRC transceiver to transmit a suppression notice in response to detecting the signal from the secondary DSRC system, where the suppression notice conveys an instruction to the secondary DSRC system to suspend DSRC transmissions, wherein the suppression notice comprises a time period after which the secondary DSRC system is permitted to resume DSRC transmissions, and wherein the secondary DSRC system is configured to suspend DSRC transmissions of the secondary DSRC system in response to the instruction conveyed in the suppression notice;

wherein the secondary DSRC system is configured to enter a suspended operational state in response to the instruction conveyed in the suppression notice, wherein the secondary DSRC system suspends DSRC operations of the secondary DSRC system and does not transmit DSRC transmissions during the suspended operational state to prevent interference with DSRC transmissions of the primary DSRC system.

11. The system of claim 10, wherein the DSRC controller is further configured to initiate and conduct a negotiation session with the secondary DSRC system in response to detecting the signal from the secondary DSRC system, wherein conducting the negotiation session includes exchanging information to determine which DSRC system is to be the primary DSRC system and which DSRC system is to be the secondary DSRC system.

12. The system of claim 11, wherein the DSRC controller is further configured to transmit the suppression notice after establishment of the negotiation session.

13. The system of claim 11, wherein the negotiation session is conducted utilizing a secondary communication channel distinct from the DSRC network.

14. The system of claim 10, wherein detection of the signal from the secondary DSRC system includes detecting negotiation initiation signals and the DSRC controller is further configured to respond to negotiation initiation signals from the secondary DSRC system.

21. The system of claim 10, wherein the DSRC transceiver configured to receive an acknowledgement signal transmitted from the secondary DSRC system that indicates reception of the suppression notice and responsiveness to the instruction conveyed therein by the secondary DSRC system.

22. The system of claim 10, wherein the DSRC transceiver configured to receive, after expiration of the time period provided in the suppression notice, DSRC transmissions transmitted by the secondary DSRC system when the secondary DSRC system resumes DSRC transmissions.

15. A primary Dedicated Short-Range Communication (DSRC) system comprising:

a DSRC transceiver configured to transmit and receive DSRC signals on a DSRC network; and

a DSRC controller configured to operate the DSRC transceiver to transmit a periodic notification signal, where the periodic notification signal conveys primacy of the primary DSRC system over another secondary DSRC system that is configured to communicate on the DSRC network;

wherein the DSRC controller is further configured to detect a secondary DSRC system operating in proximity to the primary DSRC system;

wherein the DSRC controller is further configured to transmit a suppression notice in response to detecting a secondary DSRC system, where the suppression notice conveys an instruction to the secondary DSRC system to suspend DSRC transmissions, and wherein the suppression notice comprises a time period after which the secondary DSRC system is permitted to resume DSRC transmissions.

16. The system of claim 15, wherein the DSRC controller is further configured to initiate a negotiation session with the secondary DSRC system in response to detecting the secondary DSRC system.

17. The system of claim 15, wherein the DSRC controller is further configured to communicate with the secondary DSRC system utilizing a secondary communication channel distinct from the DSRC network.

18. The system of claim 15, wherein the DSRC controller is configured to communicate with the secondary DSRC system utilizing at least one of a radio-frequency communication band, a low-power, short-range wireless communication band, and a near-field communication band.