IP Library Granted Patent US 9,225,782
Granted Patent B2
US 9,225,782 · App. 13/943,114 · Granted Dec 29, 2015

System and method for enabling a vehicular access network in a vehicular environment

Inventors: Sateesh K. Addepalli (San Jose, CA); Rodolfo A. Milito (Los Gatos, CA); Lillian Lei Dai (Rockville, MD); Flavio Bonomi (Palo Alto, CA); Raghuram S. Sudhaakar (Sunnyvale, CA); Christian Ibars Casas (Ceira (Girona), ES); Pere Monclus (San Jose, CA)
Assignee: CISCO TECHNOLOGY, INC.
H04L67/12B60W50/10G06F3/017G06F3/167G06F9/542G06F21/45H04L12/266H04L29/06578H04L43/0811H04L43/0876H04L63/08H04L63/107H04L67/32H04W4/046H04W12/06H04W12/08H04W28/0215H04W40/20H04W48/02H04W48/06H04W48/18H04W52/12H04W72/0406H04W72/0493H04W28/06H04W36/08H04W52/143H04W52/225H04W52/241H04W52/346H04W72/042H04W84/005H04W84/12H04W92/18
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Quick Facts
Patent No.
US 9,225,782
App. No.
13/943,114
Granted
Dec 29, 2015
Kind
B2
Abstract

A method includes joining a vehicular access network (VAN) comprising cooperative communication between a plurality of on-board units (OBU) in respective vehicles, scanning the VAN to pick up a coverage of at least one infrastructure access point (IAP), which operates on a control channel in a radio access tree (RAT) comprising a plurality of cells, listening to a channel allocation information from the IAP that includes a request for a mobile cell gateway (MCG) at a nominal location in the RAT, and sending a candidacy message to the at least one IAP to become an MCG. Certain embodiments include establishing the VAN in a highway, and in urban areas, aggregating traffic in a cell and transmitting to the IAP via the MCG, and other features.

Claims (47)

1. A method, comprising:

scanning a vehicular access network (VAN), which facilitates a communication involving an on-board unit (OBU) of a respective vehicle, for coverage associated with an infrastructure access point (IAP); and

receiving channel allocation information from the IAP, wherein the channel allocation information comprises at least one request for a mobile cell gateway (MCG).

2. The method of claim 1 , wherein the channel allocation information comprises at least one request for the MCG at a nominal location in the RAT.

3. The method of claim 1 , wherein the IAP operates on a control channel in a radio access tree (RAT) comprising a plurality of cells.

4. The method of claim 3 , further comprising:

performing, by the OBU, functions of the IAP; and

establishing the control channel in the RAT if the coverage cannot be identified.

5. The method of claim 1 , wherein the IAP is a roadside unit (RSU) operating on at least one short-range wireless channel.

6. The method of claim 1 , further comprising:

sending a candidacy message to the IAP to become a new mobile cell gateway (MCG).

7. The method of claim 1 , wherein the OBU is configured to cooperate with another OBU such that the OBUs can self-organize as an ad hoc mobile network, with an ability to communicate with each other.

8. The method of claim 1 , wherein the OBU is configured to facilitate wireless communication as a WiFi hotspot involving other vehicles.

9. The method of claim 1 , further comprising:

locating a vehicular mobile router (VMR) in a cell that aggregates end-node traffic from end nodes; and

transmitting the end-node traffic to a particular MCG.

10. The method of claim 1 , wherein the OBU performs functions of a femtocell.

11. The method of claim 1 , wherein the OBU facilitates registering of a hotspot/femtocell to a network via a remote or virtual Subscriber Identity Module (SIM).

12. The method of claim 1 , wherein the communication comprises maximizing a capacity of a RAT by implementing a frequency reuse method.

13. The method of claim 1 , wherein the communication comprises:

implementing an iterative power control algorithm to facilitate video streaming.

14. The method of claim 1 , further comprising:

retrieving a stored signal-to-interference plus noise ratio (SINR);

calculating an updated SINR for a node;

storing the updated SINR; and

calculating an individual power component for the node.

15. The method of claim 1 , wherein the communication comprises:

implementing a utility power control algorithm.

16. The method of claim 1 , further comprising:

randomly selecting a node;

updating a power level for the node; and

maximizing a utility function corresponding to the power level for the node.

17. The method of claim 1 , further comprising:

receiving a network access credential comprising a globally unique phone; and

establishing a network connection with the VAN using the network access credential.

18. Logic encoded in non-transitory media that includes code for execution and when executed by a processor is operable to perform operations comprising:

scanning a vehicular access network (VAN), which facilitates a communication involving an on-board unit (OBU) of a respective vehicle, for coverage associated with an infrastructure access point (IAP); and

receiving channel allocation information from the IAP, wherein the channel allocation information comprises at least one request for a mobile cell gateway (MCG).

19. An on-board unit (OBU) of a respective vehicle, comprising:

a memory element configured to store data;

a network interface; and

a computing processor operable to execute instructions associated with the data, wherein the network interface, computing processor, and the memory element cooperate such that the OBU is configured to:

scan a vehicular access network (VAN), which facilitates a communication involving the on-board unit (OBU) of the respective vehicle, for coverage associated with an access point (IAP); and

receive channel allocation information from the IAP, wherein the channel allocation information comprises at least one request for a mobile cell gateway (MCG).

20. The OBU of claim 19 , further comprising:

a vehicle diagnostics element; and

a navigation system, wherein the OBU is configured to interface with the vehicle diagnostics element and the navigation system.

Continuity (3)
Continuation 13118024 · May 27, 2011
Provisional Application 61433138 · Jan 14, 2011
Related Publication 20130301584A1 · Nov 14, 2013