Application US20190289610

Edge-Assisted Data Transmission for Connected Vehicles
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US20190289610

1. A method comprising: (7) (5)

receiving a first request of a first vehicle for a content item;

receiving travel data of the first vehicle including a first vehicle route of the first vehicle;

determining one or more first edge servers located on the first vehicle route of the first vehicle;

segmenting the content item into one or more content segments based on the travel data of the first vehicle and edge information of each first edge server; and

dispatching each content segment to the corresponding first edge server for transmission to the first vehicle.

2. The method of claim 1, wherein the edge information of each first edge server includes coverage data describing a communication coverage area of the first edge server and one or more performance metrics of the first edge server. (0)

3. The method of claim 1, wherein (0) (2)

4. The method of claim 1, wherein dispatching each content segment to the corresponding first edge server for transmission to the first vehicle includes: (0) (2)

5. The method of claim 1, further comprising: (0) (2)

6. The method of claim 1, further comprising: (2) (3)

receiving, from a first edge server among the one or more first edge servers, a notification of content delivery indicating that a first content segment corresponding to the first edge server among the one or more content segments is transmitted to the first vehicle;

determining that the first content segment is to be retained at the first edge server; and

responsive to determining that the first content segment is to be retained at the first edge server, transmitting an instruction of content retain instructing the first edge server to retain the first content segment.

7. The method of claim 6, wherein determining that the first content segment is to be retained at the first edge server includes: (0) (3)

8. The method of claim 6, wherein determining that the first content segment is to be retained at the first edge server includes: (0) (2)

9. The method of claim 1, further comprising: (0) (5)

receiving a notification of route change including a second vehicle route of the first vehicle;

determining one or more bypass edge servers located on the first vehicle route of the first vehicle;

determining one or more replacement edge servers located on the second vehicle route of the first vehicle;

determining, from the one or more content segments of the content item, one or more first content segments corresponding to the one or more bypass edge servers; and

dispatching the one or more first content segments corresponding to the one or more bypass edge servers to the one or more replacement edge servers for transmission to the first vehicle.

10. The method of claim 1, further comprising: (1) (6)

receiving a notification of route change including a second vehicle route of the first vehicle;

determining one or more bypass edge servers located on the first vehicle route of the first vehicle;

determining one or more replacement edge servers located on the second vehicle route of the first vehicle;

determining, from the one or more content segments of the content item, one or more first content segments corresponding to the one or more bypass edge servers;

adjusting the one or more first content segments to generate one or more second content segments using edge information of each replacement edge server; and

dispatching the one or more second content segments to the one or more replacement edge servers for transmission to the first vehicle.

11. The method of claim 10, further comprising: (1) (3)

determining that the one or more first content segments are dispatched to the one or more bypass edge servers;

responsive to determining that the one or more first content segments are dispatched to the one or more bypass edge servers, determining that the one or more first content segments are to be discarded at the one or more bypass edge servers; and

responsive to determining that the one or more first content segments are to be discarded at the one or more bypass edge servers, transmitting an instruction of content discard instructing the one or more bypass edge servers to discard the one or more first content segments.

12. The method of claim 11, wherein the instruction of content discard instructs the one or more bypass edge servers to release one or more edge server resources allocated to the one or more first content segments. (0)

13. A method comprising: (5) (6)

receiving by an edge server, from a management server, a content segment of a content item requested by a first vehicle;

determining, by the edge server, one or more performance metrics of the edge server;

computing, by the edge server, a target transmission data rate for the content segment based on the one or more performance metrics of the edge server;

adaptively encoding, by the edge server, the content segment using the target transmission data rate to generate an encoded content segment;

receiving, by the edge server, a connection request from the first vehicle; and

responsive to receiving the connection request from the first vehicle, transmitting, by the edge server, the encoded content segment to the first vehicle.

14. The method of claim 13, wherein determining the one or more performance metrics of the edge server includes: (1) (2)

monitoring one or more channel quality metrics indicating a channel quality of a communication channel between the edge server and one or more vehicles communicatively coupled to the edge server; and

monitoring one or more computation load metrics indicating a computation load condition of the edge server.

15. The method of claim 14, wherein (0) (2)

16. The method of claim 13, further comprising: (0) (3)

17. The method of claim 13, further comprising: (0) (2)

18. The method of claim 13, further comprising: (0) (2)

19. The method of claim 13, further comprising: (0) (2)

20. A system comprising: (5) (2)

one or more processors;

one or more memories storing instructions that, when executed by the one or more processors, cause the system to: receive a first request of a first vehicle for a content item;

receive travel data of the first vehicle including a first vehicle route of the first vehicle;

determine one or more first edge servers located on the first vehicle route of the first vehicle;

segment the content item into one or more content segments based on the travel data of the first vehicle and edge information of each first edge server; and

dispatch each content segment to the corresponding first edge server for transmission to the first vehicle.

21. The system of claim 20, wherein the edge information of each first edge server includes coverage data describing a communication coverage area of the first edge server and one or more performance metrics of the first edge server. (0)

22. The system of claim 20, wherein (0) (2)

23. The system of claim 20, wherein to dispatch each content segment to the corresponding first edge server for transmission to the first vehicle includes: (0) (2)

24. The system of claim 20, wherein the instructions, when executed by the one or more processors, further cause the system to: (2) (3)

receive, from a first edge server among the one or more first edge servers, a notification of content delivery indicating that a first content segment corresponding to the first edge server among the one or more content segments is transmitted to the first vehicle;

determine that the first content segment is to be retained at the first edge server; and

responsive to determining that the first content segment is to be retained at the first edge server, transmit an instruction of content retain instructing the first edge server to retain the first content segment.

25. The system of claim 24, wherein to determine that the first content segment is to be retained at the first edge server includes: (0) (3)

26. The system of claim 24, wherein to determine that the first content segment is to be retained at the first edge server includes: (0) (2)

27. The system of claim 20, wherein the instructions, when executed by the one or more processors, further cause the system to: (1) (6)

receive a notification of route change including a second vehicle route of the first vehicle;

determine one or more bypass edge servers located on the first vehicle route of the first vehicle;

determine one or more replacement edge servers located on the second vehicle route of the first vehicle;

determine, from the one or more content segments of the content item, one or more first content segments corresponding to the one or more bypass edge servers;

adjust the one or more first content segments to generate one or more second content segments using edge information of each replacement edge server; and

dispatch the one or more second content segments to the one or more replacement edge servers for transmission to the first vehicle.

28. The system of claim 27, wherein the instructions, when executed by the one or more processors, further cause the system to: (0) (3)

determine that the one or more first content segments are dispatched to the one or more bypass edge servers;

responsive to determining that the one or more first content segments are dispatched to the one or more bypass edge servers, determine that the one or more first content segments are to be discarded at the one or more bypass edge servers; and

responsive to determining that the one or more first content segments are to be discarded at the one or more bypass edge servers, transmit an instruction of content discard instructing the one or more bypass edge servers to discard the one or more first content segments and release one or more edge server resources allocated to the one or more first content segments.

29. A system comprising: (4) (2)

one or more processors;

one or more memories storing instructions that, when executed by the one or more processors, cause the system to: receive, from a management server, a content segment of a content item requested by a first vehicle;

determine one or more performance metrics of the system;

compute a target transmission data rate for the content segment based on the one or more performance metrics of the system;

adaptively encode the content segment using the target transmission data rate to generate an encoded content segment;

receive a connection request from the first vehicle; and

responsive to receiving the connection request from the first vehicle, transmit the encoded content segment to the first vehicle.

30. The system of claim 29, wherein to determine the one or more performance metrics of the system includes: (0) (2)

31. The system of claim 29, wherein the instructions, when executed by the one or more processors, further cause the system to: (0) (3)

32. The system of claim 29, wherein the instructions, when executed by the one or more processors, further cause the system to: (0) (2)

33. The system of claim 29, wherein the instructions, when executed by the one or more processors, further cause the system to: (0) (2)

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Application US20190289610

Edge-Assisted Data Transmission for Connected Vehicles

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