System and method for wireless communication of uncompressed video having beacon design

• US 8,396,018 B2
• Filed: 11/07/2007
• Issued: 03/12/2013
• Est. Priority Date: 12/04/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Shao, Huai-Rong, Singh, Harkirat, Qin, Xiangping, Ngo, Chiu
• Primary Examiner(s): Shah, Chirag
• Assistant Examiner(s): Shivers, Ashley
• Application Number:
  US11/936,600
• Publication Number:
  US 20080129881A1
• Time in Patent Office: 1,952 Days
• Field of Search: None
• US Class Current: 370/312
• 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: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence
• 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

Abstract

A system and method for efficiently communicating messages over a low-rate channel between multiple devices in a system for wireless communication of uncompressed video is disclosed. The method includes various control bits in a beacon control field of a beacon frame to improve the efficiency of the beacon processing, thereby reducing beacon processing time and size of the beacon frame itself. The transmitting device can use one or more of the various control bits to indicate whether there are changes in various MAC payload information fields. The receiving station can use one or more of the control bits to eliminate the need to parse one or more MAC payload information fields whose values have not changed from the previous beacon frame.

Claims

1. A system for wireless communication of uncompressed video comprising:

a memory in a transmitting station, the memory configured to store a current beacon frame having a beacon control field, wherein the beacon control field includes one or more control bits, and wherein at least one control bit comprises a configuration change bit;

a processor configured to set at least one control bit in the beacon control field; and

a transmitter to wirelessly transmit the current beacon frame,

wherein transmitted information elements (IEs) are selectively parsed by a receiving station based on a setting of multiple control bits, wherein selective parsing comprises parsing a particular number of fields of the current beacon frame based on settings of only multiple control bits that indicate a change in the particular number of fields of the current beacon frame as compared to a previous beacon frame, wherein at least one field of the current beacon frame is parsed.

2. The system of claim 1, wherein one of the control bits indicates an inclusion of a particular type of information elements in the current beacon frame.

3. The system of claim 1, wherein one of the control bits indicates a configuration change in the current beacon frame.

4. The system of claim 3, wherein the configuration change in the current beacon frame comprises a change in media access control (MAC) layer payload information.

5. The system of claim 3, wherein if one of the control bits indicates no configuration change in the current beacon frame, the processor only parses a time stamp field without parsing any other fields.

6. The system of claim 1, wherein one of the control bits indicates a channel time scheduling change in the current beacon frame.

7. The system of claim 1, wherein the information elements include schedule information elements.

8. The system of claim 7, wherein the schedule information elements include static or dynamic schedule information elements.

9. The system of claim 8, wherein one of the control bits indicates an inclusion of static schedule informational elements in the current beacon frame.

10. The system of claim 9, wherein if one of the control bits indicates an inclusion of static schedule informational elements in the current beacon frame, the processor does not parse the static schedule informational elements and parses at least a time stamp field.

11. The system of claim 1, wherein one of the control bits indicates whether a coordinator is busy.

12. The system of claim 1, wherein one of the control bits indicates the beacon frame being sent by a non-coordinator.

13. The system of claim 1, wherein one of the control bits indicates whether there is still channel time available to accept a new bandwidth reservation request or allow devices to contend a channel at unreserved channel time blocks.

14. The system of claim 1, wherein only a time stamp field is parsed when no new IEs are contained in the beacon frame as indicated by the configuration control bit.

15. The system of claim 1, wherein the control bits further comprise a channel schedule change bit and a static schedule IE included bit.

16. The system of claim 15, wherein inclusion of the channel schedule change bit eliminates parsing of schedule IEs when no new schedule IE is contained in the current beacon frame.

17. The system of claim 15, wherein inclusion of the static schedule IE included bit eliminates parsing of static schedule IEs when no new static schedule IE is contained in the current beacon frame.

18. The system of claim 1, wherein the uncompressed video comprises uncompressed high definition (HD) video.

19. The system of claim 1, wherein selective parsing of the IEs based on the setting of multiple control bits reduces beacon size.

20. The system of claim 1, wherein information elements (IEs) are parsed based on a setting of multiple control bits without parsing fields that have unchanged information in the current beacon frame as compared to the previous beacon frame.

21. The system of claim 1, wherein a size of the beacon frame is reduced by eliminating unchanged IEs based on the settings of the multiple control bits.

22. A system for wireless communication of uncompressed video comprising:

a receiver in a receiving station, the receiver wirelessly receives a current beacon frame having a beacon control field, wherein the beacon control field includes one or more control bits for indicating whether there is a change in one or more fields of the current beacon frame as compared to a previous beacon frame;

a memory that stores the current beacon frame; and

a processor that processes the one or more fields of the current beacon frame depending on value(s) of the one or more control bits, wherein processing comprises selectively parsing a particular number of fields of the current beacon frame based on settings of only multiple control bits that indicate a change in the particular number of fields of the current beacon frame as compared to the previous beacon frame, wherein at least one field of the current beacon frame is parsed.

23. The system of claim 22, wherein processing further comprises parsing one or more fields of the current beacon frame based on settings of multiple control bits without parsing fields that have unchanged information in the current beacon frame as compared to the previous beacon frame.

24. A method of processing of beacon frames in a system for wireless communication of uncompressed video, the method comprising:

providing a current beacon frame at the start of a current superframe by a transmitting station, wherein the current beacon frame includes a plurality of information elements and a beacon control field;

providing in the beacon control field one or more control bits configured for indicating whether there is a change in one or more of the information elements (IEs) as compared to a previous beacon frame;

wirelessly transmitting the current superframe; and

selectively parsing one or more fields of the current beacon frame by a receiving station based on settings of the one or more control bits;

wherein selectively parsing comprises eliminating parsing of one or more fields of the current beacon frame based on information that has changed from the previous beacon frame as compared to the current beacon frame, wherein at least one field of the current beacon frame is parsed.

25. The method of claim 24, wherein the current beacon frame does not include information elements when there is no change in the information elements.

26. A method of processing of beacon frames in a system for wireless communication of uncompressed video, the method comprising:

wirelessly receiving a current beacon frame by a receiving station, wherein the current beacon frame comprises a plurality of information elements and a beacon control field having a plurality of control bits configured to indicate whether there is a change in the information elements as compared to a previous beacon frame; and

processing one or more of the information elements depending on value(s) of one or more of the control bits, wherein processing comprises selectively parsing a particular number of fields of the current beacon frame based on multiple settings of only the plurality of control bits that indicate a change in the particular number of fields of the current beacon frame as compared to the previous beacon frame, wherein at least one field of the current beacon frame is parsed.

27. The method of claim 26, wherein a portion of the information elements are not parsed if one of the control bits indicates that there is no change in the information elements.

28. The method of claim 26, wherein the information elements include a plurality of schedule information elements.

29. The method of claim 28, wherein the schedule information elements are not parsed if one of the control bits indicates that there is no change in the schedule information elements.

30. The method of claim 26, wherein the receiving station is a station other than a coordinator that is configured to wirelessly receive data in the system for wireless communication of uncompressed video.

31. The method of claim 26, wherein the receiving station is a coordinator.

32. The method of claim 26, wherein processing further comprises parsing the particular number of fields of the current beacon frame based on multiple settings of the plurality of control bits without parsing fields that have unchanged information in the current beacon frame as compared to the previous beacon frame.

33. A non-transitory computer-usable medium in a system for wireless communication of uncompressed video having computer readable code comprising instructions for:

storing and processing one or more information elements in a current beacon frame; and

storing and processing a beacon control field in the current beacon frame by a receiving station, the beacon control field having multiple control bits for indicating whether there is a change in one or more of the information elements as compared to a previous beacon frame, wherein processing comprises selectively parsing a particular number of fields of the current beacon frame based on settings of only multiple control bits that indicate a change in the particular number of fields of the current beacon frame as compared to the previous beacon frame, wherein at least one field of the current beacon frame is parsed.

34. The computer-usable medium of claim 33 further comprising instructions for wirelessly transmitting the information elements and the beacon control field to the receiving station.

35. The computer-usable medium of claim 33 further comprising instructions for processing the information elements and the beacon control field that are wireless received.

36. The computer-usable medium of claim 33, wherein processing further comprises parsing the particular fields of the current beacon frame based on settings of the multiple control bits without parsing fields that have unchanged information in the current beacon frame as compared to the previous beacon frame.