System and method of transmitting content from a mobile device to a wireless display

• US 8,929,297 B2
• Filed: 03/05/2013
• Issued: 01/06/2015
• Est. Priority Date: 07/09/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Raveendran, Vijayalakshmi R.
• Primary Examiner(s): Nguyen, Brian D
• Application Number:
  US13/785,314
• Publication Number:
  US 20130182645A1
• Time in Patent Office: 672 Days
• Field of Search: 370/328, 370/338, 370/470, 370/471, 370/412
• US Class Current: 370/328
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/0067 Rate matching H04L1/0013 and H04L1/08 take precedence
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 47/20 Traffic policing
• CPC Class Codes: H04L 47/38 by adapting coding or compression rate
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04L 49/901 using storage descriptor, e.g. read or write pointers
• CPC Class Codes: H04L 49/9047 including multiple buffers, e.g. buffer pools
• CPC Class Codes: H04L 65/765 intermediate
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04W 28/0263 involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

A method of transmitting content to a wireless display device is disclosed. The method may include receiving multimedia data, encoding the multimedia data, and writing encoded multimedia data into a first predetermined memory location of a shared memory. Further, the method may include encapsulating the encoded multimedia data and writing encapsulation data into a second predetermined memory location of the shared memory. The method may also include calculating error control encoding and writing the error control encoding into a third predetermined memory location of the shared memory. Further, the method may include transmitting the encoded multimedia data, the encapsulation data, and the error control encoding to the wireless display device.

Claims

1. A method of wirelessly transmitting data from a mobile device to a display device, comprising:

receiving, in the mobile device, first data to be included in a first packet;

receiving, in the mobile device, second data to be included in a second packet;

allocating locations of a memory buffer associated with the mobile device in which to store an encoded version of the first data, an encoded version of the second data, first transport header data associated with the encoded version of the first data, second transport header data associated with the encoded version of the second data, first Media Access Control (MAC) header data associated with the first data, and second MAC header data associated with the second data, wherein the locations are allocated such that the first encoded data, first transport header data and first MAC header data are stored in first contiguous memory buffer locations associated with the mobile device, and the second encoded data, second transport header data and second MAC header data are stored in second contiguous memory buffer locations associated with the mobile device; and

storing the first encoded data, first transport header data and first MAC header data in the first contiguous memory buffer locations associated with the mobile device, and the second encoded data, second transport header data and second MAC header data in the second contiguous memory buffer locations associated with the mobile device.

2. The method of claim 1 wherein storing includes storing the first encoded data and second encoded data concurrently.

3. The method of claim 1 wherein the allocated locations are based on a predetermined channel bandwidth and packet error rate (PER).

4. The method of claim 1 further comprising transmitting one or more of the first and second packets from the mobile device to the display device.

5. The method of claim 4 further comprising establishing a near field communication (NFC) link between the mobile device and the display device,

wherein transmitting one or more of the first and second packets from the mobile device to the display device includes transmitting one or more of the first and second packets from the mobile device to the display device via the NFC link.

6. The method of claim 1 further comprising storing the first encoded data, first transport header data and first MAC header data in first contiguous memory buffer locations associated with the display device, and the second encoded data, second transport header data and second MAC header data in second contiguous memory buffer locations associated with the display device.

7. A system for wirelessly transmitting data from a mobile device to a display device, comprising:

means for receiving, in the mobile device, first data to be included in a first packet;

means for receiving, in the mobile device, second data to be included in a second packet;

means for allocating locations of a memory buffer associated with the mobile device in which to store an encoded version of the first data, an encoded version of the second data, first transport header data associated with the encoded version of the first data, second transport header data associated with the encoded version of the second data, first Media Access Control (MAC) header data associated with the first data, and second MAC header data associated with the second data, wherein the locations are allocated such that the first encoded data, first transport header data and first MAC header data are stored in first contiguous memory buffer locations associated with the mobile device, and the second encoded data, second transport header data and second MAC header data are stored in second contiguous memory buffer locations associated with the mobile device; and

means for storing the first encoded data, first transport header data and first MAC header data in the first contiguous memory buffer locations associated with the mobile device, and the second encoded data, second transport header data and second MAC header data in the second contiguous memory buffer locations associated with the mobile device.

8. The system of claim 7 wherein the allocated locations are based on a predetermined channel bandwidth and packet error rate (PER).

9. The system of claim 7 further comprising means for establishing a near field communication (NFC) link between the mobile device and the display device;

and

means for transmitting one or more of the first and second packets from the mobile device to the display device via the NFC link.

10. The system of claim 7 further comprising means for storing the first encoded data, first transport header data and first MAC header data in first contiguous memory buffer locations associated with the display device, and the second encoded data, second transport header data and second MAC header data in second contiguous memory buffer locations associated with the display device.

11. A computer program product, comprising:

a non-transitory computer readable medium comprising;

code for wirelessly transmitting data from a mobile device to a display device, the code comprising;

code for causing first data to be included in a first packet to be received in the mobile device;

code for causing second data to be included in a second packet to be received in the mobile device;

code for causing locations of a memory buffer associated with the mobile device to be allocated in which to store an encoded version of the first data, an encoded version of the second data, first transport header data associated with the encoded version of the first data, second transport header data associated with the encoded version of the second data, first Media Access Control (MAC) header data associated with the first data, and second MAC header data associated with the second data, wherein the locations are allocated such that the first encoded data, first transport header data and first MAC header data are stored in first contiguous memory buffer locations associated with the mobile device, and the second encoded data, second transport header data and second MAC header data are stored in second contiguous memory buffer locations associated with the mobile device; and

code for causing the first encoded data, first transport header data and first MAC header data to be stored in the first contiguous memory buffer locations associated with the mobile device, and the second encoded data, second transport header data and second MAC header data to be stored in the second contiguous memory buffer locations associated with the mobile device.

12. The computer program product of claim 11 further comprising code for causing the locations to be allocated based on a predetermined channel bandwidth and packet error rate (PER).

13. The computer program product of claim 11 further comprising:

code for causing a near field communication (NFC) link to be established between the mobile device and the display device; and

code for causing one or more of the first and second packets to be transmitted from the mobile device to the display device via the NFC link.

14. A method of wirelessly receiving data from a mobile device in a display device, comprising:

receiving in the display device a first packet;

receiving in the display device a second packet;

allocating locations of a memory buffer associated with the display device in which to store first encoded data from the first packet, second encoded data from the second packet, first transport header data from the first packet, second transport header data from the second packet, first Media Access Control (MAC) header data from the first packet, and second MAC header data from the second packet, wherein the locations are allocated such that the first encoded data, first transport header data and first MAC header data from the first packet are stored in first contiguous memory buffer locations associated with the display device, and the second encoded data, second transport header data and second MAC header data from the second packet are stored in second contiguous memory buffer locations associated with the display device; and

storing the first encoded data, first transport header data and first MAC header data from the first packet in the first contiguous memory buffer locations associated with the display device, and the second encoded data, second transport header data and second MAC header data from the second packet in the second contiguous memory buffer locations associated with the display device.

15. The method of claim 14 wherein the allocated locations are based on a predetermined channel bandwidth and packet error rate (PER).

16. The method of claim 14 further comprising establishing a near field communication (NFC) link between the mobile device and the display device;

wherein receiving the first and second packets includes receiving the first and second packets via the NFC link.

17. A system for wirelessly receiving data from a mobile device in a display device, comprising:

means for receiving in the display device a first packet;

means for receiving in the display device a second packet;

means for allocating locations of a memory buffer associated with the display device in which to store first encoded data from the first packet, second encoded data from the second packet, first transport header data from the first packet, second transport header data from the second packet, first Media Access Control (MAC) header data from the first packet, and second MAC header data from the second packet, wherein the locations are allocated such that the first encoded data, first transport header data and first MAC header data from the first packet are stored in first contiguous memory buffer locations associated with the display device, and the second encoded data, second transport header data and second MAC header data from the second packet are stored in second contiguous memory buffer locations associated with the display device; and

means for storing the first encoded data, first transport header data and first MAC header data from the first packet in the first contiguous memory buffer locations associated with the display device, and the second encoded data, second transport header data and second MAC header data from the second packet in the second contiguous memory buffer locations associated with the display device.

18. The system of claim 17 wherein the allocated locations are based on a predetermined channel bandwidth and packet error rate (PER).

19. The system of claim 17 further comprising:

means for establishing a near field communication (NFC) link between the mobile device and the display device; and

means for receiving the first and second packets in the display device via the NFC link.

20. A computer program product, comprising:

a non-transitory computer readable medium comprising;

code for wirelessly receiving data from a mobile device in a display device, the code comprising;

code for causing a first packet to be received in the display device;

code for causing a second packet to be received in the display device;

code for causing allocation of locations of a memory buffer associated with the display device in which to store first encoded data from the first packet, second encoded data from the second packet, first transport header data from the first packet, second transport header data from the second packet, first Media Access Control (MAC) header data from the first packet, and second MAC header data from the second packet, wherein the locations are allocated such that the first encoded data, first transport header data and first MAC header data from the first packet are stored in first contiguous memory buffer locations associated with the display device, and the second encoded data second, transport header data and second MAC header data from the second packet are stored in second contiguous memory buffer locations associated with the display device; and

code for causing the first encoded data, first transport header data and first MAC header data from the first packet to be stored in the first contiguous memory buffer locations associated with the display device, and the second encoded data, second transport header data and second MAC header data from the second packet to be stored in the second contiguous memory buffer locations associated with the display device.

21. The computer program product of claim 20 further comprising code for causing the locations to be allocated based on a predetermined channel bandwidth and packet error rate (PER).

22. The computer program product of claim 20 further comprising:

code for causing a near field communication (NFC) link to be established between the mobile device and the display device; and

code for causing the first and second packets to be received in the display device via the NFC link.