ESTABLISHING A WIRELESS DISPLAY SESSION BETWEEN A COMPUTING DEVICE AND A VEHICLE HEAD UNIT

• US 20140120829A1
• Filed: 03/13/2013
• Published: 05/01/2014
• Est. Priority Date: 10/29/2012
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Raveendran, Vijayalakshmi R., Huang, Xiaolong, Wang, Xiaodong, BHAMIDIPATI, PhaniKumar K., Jiang, Hongyu
• Granted Patent: US 9,144,094 B2
• Time in Patent Office: Days
• US Class Current: 455/3.06
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

This disclosure describes a method of transmitting media data from a source device, the method comprising establishing, with the source device, a first communication session between the source device and a sink device comprising a vehicle head unit, wherein the first communication session conforms to a communication protocol. The method also comprises discovering, with the source device and by the first communication session, the sink device. The method further comprises, during operation of the first communication session, establishing with the source device a second communication session between the source device and the sink device, wherein the second communication session conforms to a wireless display protocol. The method also comprises transmitting, using the second communication session, media data from the source device to the sink device for output to an interface of the sink device.

Claims

1. A method of transmitting media data from a source device, the method comprising:

establishing, with the source device, a first communication session between the source device and a sink device comprising a vehicle head unit, wherein the first communication session conforms to a communication protocol;

discovering, with the source device and by the first communication session, the sink device;

during operation of the first communication session, establishing with the source device a second communication session between the source device and the sink device, wherein the second communication session conforms to a wireless display protocol; and

transmitting, using the second communication session, media data from the source device to the sink device for output to an interface of the sink device.

2. The method of claim 1, further comprising:

receiving, with the source device by the first communication session, a control message from the sink device;

in response to the control message, executing a wireless display service with the source device.

3. The method of claim 2, wherein transmitting the media data from the source device to the sink device for output to an interface of the sink device comprises transmitting the media data from the wireless display service executed by the source device to the sink device.

4. The method of claim 1, further comprising:

transmitting, from the source device to the sink device, data defining a user interface that presents a user with one or more applications for execution;

receiving, with the source device and by the first communication session, a control message indicating the user has selected a first one of the one or more applications for execution,

wherein transmitting the media data from the source device to the sink device for output to an interface of the sink device comprising transmitting the media data in response to the control message.

5. The method of claim 1, wherein the vehicle head unit comprises a front console substantially accessible to a driver of a vehicle that includes the vehicle head unit and a rear console substantially inaccessible to the driver, the method further comprising:

transmitting the media data to the sink device for output to one of the front console or the rear console according to properties of the media data.

6. The method of claim 5, further comprising transmitting the media data only to the rear console when the vehicle is in motion.

7. The method of claim 1, wherein the communication protocol comprises MirrorLink.

8. The method of claim 1, wherein the wireless display protocol comprises Wi-Fi Display.

9. The method of claim 1, further comprising:

sending a Real Time Streaming Protocol (RTSP) message to the sink device, wherein the RTSP message identifies a user datagram protocol (UDP) port; and

receiving a command for the second communication session at the identified UDP port.

10. The method of claim 1, further comprising:

receiving a user input message from the sink device by the second communication session, wherein the user input message is based at least in part on a message defined according to a wireless display standard and includes a field indicating whether the message includes an ASCII key code or a 32-bit binary key; and

adjusting the transmission of media data according to the user input message.

11. A method of receiving media data with a sink device comprising a vehicle head unit, the method comprising:

establishing, with the sink device, a first communication session between the sink device and a source device, wherein the first communication session conforms to a communication protocol;

discovering, with the sink device and by the first communication session, the source device;

during operation of the first communication session, establishing with the sink device a second communication session between the source device and the sink device, wherein the second communication session conforms to a wireless display protocol;

receiving, with the sink device using the second communication session, media data from the source device; and

rendering the media data to an interface of the sink device.

12. The method of claim 11, further comprising:

sending, with the sink device by the first communication session, a control message to the source device to direct the source device to execute a wireless display service.

13. The method of claim 12, wherein receiving the media data from the source device comprises receiving the media data from the wireless display service.

14. The method of claim 11, further comprising:

receiving, with the sink device by the first communication session, data defining a user interface that presents a user with one or more applications for execution;

sending, with the sink device and by the first communication session, a control message indicating the user has selected a first one of the one or more applications for execution.

15. The method of claim 11, wherein the vehicle head unit comprises a front console substantially accessible to a driver of a vehicle that includes the vehicle head unit and a rear console substantially inaccessible to the driver, the method further comprising:

routing the media data with the vehicle head unit to one of the front console or the rear console according to properties of the media data.

16. The method of claim 15, further comprising routing the media data only to the rear console when the vehicle is in motion.

17. The method of claim 11, wherein the communication protocol comprises MirrorLink.

18. The method of claim 11, wherein the wireless display protocol comprises Wi-Fi Display.

19. The method of claim 11, further comprising:

receiving a Real Time Streaming Protocol (RTSP) message from the source device, wherein the RTSP message identifies a user datagram protocol (UDP) port; and

sending a command for the second communication session at the identified UDP port.

20. The method of claim 11, further comprising:

sending a user input message to the source device by the second communication session, wherein the user input message is based at least in part on a message defined according to a wireless display standard and includes a field indicating whether the message includes an ASCII key code or a 32-bit binary key; and

receiving media data adjusted according to the user input message.

21. A source device comprising:

a MirrorLink interface configured to establish a first communication session with a sink device comprising a vehicle head unit, wherein the first communication session conforms to a communication protocol,

wherein the MirrorLink interface is configured to discover, by the first communication session, a sink device; and

a Wi-Fi Display (WFD) source configured to, during operation of the first communication session, establish a second communication session with the sink device, wherein the second communication session conforms to a wireless display protocol, and

wherein the WFD source is configured to transmit, using the second communication session, media data to the sink device for output to an interface of the sink device.

22. The source device of claim 21,

wherein the MirrorLink interface is configured to receive, by the first communication session, a control message from the sink device,

wherein the MirrorLink interface is configured to, in response to the control message, cause the source device to execute a wireless display service.

23. The source device of claim 22, wherein the WFD source is configured to transmit the media data from to the sink device for output to an interface of the sink device by transmitting the media data from the wireless display service to the sink device.

24. The source device of claim 21,

wherein the MirrorLink interface is configured to transmit, to the sink device, data defining a user interface that presents a user with one or more applications for execution,

wherein the MirrorLink interface is configured to receive, by the first communication session, a control message indicating the user has selected a first one of the one or more applications for execution, and

wherein the WFD source is configured to transmit the media data to the sink device for output to an interface of the sink device comprising transmitting the media data in response to the control message.

25. The source device of claim 21,

wherein the sink device comprises a vehicle head unit comprising a front console substantially accessible to a driver of a vehicle that includes the vehicle head unit and a rear console substantially inaccessible to the driver, and

wherein the WFD source is configured to transmit the media data to the sink device for output to one of the front console or the rear console according to properties of the media data.

26. The source device of claim 25, wherein the WFD source is configured to transmit the media data only to the rear console when the vehicle is in motion.

27. The source device of claim 21, wherein the communication protocol comprises MirrorLink.

28. The source device of claim 21, wherein the wireless display protocol comprises Wi-Fi Display.

29. The source device of claim 21,

wherein the WFD source is configured to send a Real Time Streaming Protocol (RTSP) message to the sink device, wherein the RTSP message identifies a user datagram protocol (UDP) port, and

wherein the WFD source is configured to receive a command for the second communication session at the identified UDP port.

30. The source device of claim 21, further comprising:

wherein the WFD source is configured to receive a user input message from the sink device by the second communication session, wherein the user input message is based at least in part on a message defined according to a wireless display standard and includes a field indicating whether the message includes an ASCII key code or a 32-bit binary key, and

wherein the WFD source is configured to adjust the transmission of media data according to the user input message.

31. A sink device comprising:

a MirrorLink interface configured to establish a first communication session with a source device, wherein the first communication session conforms to a communication protocol,

wherein the MirrorLink interface is configured to discover, by the first communication session, the source device; and

a Wi-Fi Display (WFD) sink configured to, during operation of the first communication session, establish a second communication session with the sink device, wherein the second communication session conforms to a wireless display protocol,

wherein the WFD sink is configured to receive, using the second communication session, media data from the source device, and

wherein the WFD sink is configured to render the media data to an interface of the sink device.

32. The sink device of claim 31,

wherein the MirrorLink interface is configured to send, by the first communication session, a control message to the source device to direct the source device to execute a wireless display service.

33. The sink device of claim 32, wherein the MirrorLink interface is configured to receive the media data from the source device by receiving the media data from the wireless display service.

34. The sink device of claim 31, further comprising:

wherein the MirrorLink interface is configured to receive, by the first communication session, data defining a user interface that presents a user with one or more applications for execution, and

wherein the MirrorLink interface is configured to sends, by the first communication session, a control message indicating the user has selected a first one of the one or more applications for execution.

35. The sink device of claim 31, further comprising:

a vehicle head unit comprising a front console substantially accessible to a driver of a vehicle that includes the vehicle head unit and a rear console substantially inaccessible to the driver,

wherein the WFD sink is configured to route the media data to one of the front console or the rear console according to properties of the media data.

36. The sink device of claim 35, wherein the WFD sink is configured to route the media data only to the rear console when the vehicle is in motion.

37. The sink device of claim 31, wherein the communication protocol comprises MirrorLink.

38. The sink device of claim 31, wherein the wireless display protocol comprises Wi-Fi Display.

39. The sink device of claim 31,

wherein the WFD sink is configured to receive a Real Time Streaming Protocol (RTSP) message from the source device, wherein the RTSP message identifies a user datagram protocol (UDP) port, and

wherein the WFD sink is configured to send a command for the second communication session at the identified UDP port.

40. The sink device of claim 31,

wherein the WFD sink is configured to sending a user input message to the source device by the second communication session, wherein the user input message is based at least in part on a message defined according to a wireless display standard and includes a field indicating whether the message includes an ASCII key code or a 32-bit binary key, and

wherein the WFD sink is configured to receive media data adjusted according to the user input message.

41. A source device comprising:

means for establishing a first communication session with a sink device comprising a vehicle head unit, wherein the first communication session conforms to a communication protocol;

means for discovering, by the first communication session, the sink device;

means for, during operation of the first communication session, establishing a second communication session with the sink device, wherein the second communication session conforms to a wireless display protocol; and

means for transmitting, using the second communication session, media data to the sink device for output to an interface of the sink device.

42. A sink device comprising:

means for establishing a first communication session with a source device, wherein the first communication session conforms to a communication protocol;

means for discovering, by the first communication session, the source device;

means for, during operation of the first communication session, establishing a second communication session with the source device, wherein the second communication session conforms to a wireless display protocol; and

means for receiving, using the second communication session, media data from the source device; and

means for rendering the media data to an interface.

43. A computer-readable storage medium including instructions stored thereon that when executed cause one or more processors to:

establish, with the source device, a first communication session between a source device and a sink device comprising a vehicle head unit, wherein the first communication session conforms to a communication protocol;

discover, with the source device and by the first communication session, the sink device;

during operation of the first communication session, establish with the source device a second communication session between the source device and the sink device, wherein the second communication session conforms to a wireless display protocol; and

transmit, using the second communication session, media data from the source device to the sink device for output to an interface of the sink device.

44. A computer-readable storage medium including instructions stored thereon that when executed cause one or more processors to:

establish, with the sink device, a first communication session between a sink device comprising a vehicle head unit and a source device, wherein the first communication session conforms to a communication protocol;

discover, with the sink device and by the first communication session, the source device;

during operation of the first communication session, establish with the sink device a second communication session between the source device and the sink device, wherein the second communication session conforms to a wireless display protocol; and

receive, with the sink device using the second communication session, media data from the source device; and

render the media data to an interface of the sink device.