APPARATUS AND METHODS FOR WIRELESS COMMUNICATION USING A PACKET STRUCTURE

• US 20120281699A1
• Filed: 06/16/2011
• Published: 11/08/2012
• Est. Priority Date: 05/06/2011
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Jia, Zhanfeng, Julian, David Jonathan, Tian, Qingjiang, Ekbal, Amal
• Granted Patent: US 8,902,894 B2
• Time in Patent Office: Days
• US Class Current: 370/392
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• 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 76/14 Direct-mode setup
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

In accordance with aspects of the disclosure, a method, apparatus, and computer program product are provided for wireless communication. The method, apparatus, and computer program product may be configured to generate packets, wherein each of the packets comprises a packet header comprising a packet format field comprising a first indicator that indicates whether the packet header comprises a payload length field and whether the packet comprises a payload. The method, apparatus, and computer program product may be further configured to generate a second indicator based on a type of data in the payload, and attach the second indicator to the data.

Claims

1. An apparatus for wireless communication, comprising:

a packet generator configured to generate packets, wherein each of the packets comprises a packet header comprising a packet format field comprising a first indicator that indicates whether the packet header comprises a payload length field and whether the packet comprises a payload; and

a transmitter configured to transmit each of the packets.

2. The apparatus of claim 1, wherein the packets comprise variable length packets.

3. The apparatus of claim 1, wherein each of the packets generated by the packet generator without the first indicator comprises a default length.

4. The apparatus of claim 1, wherein each of the packets generated by the packet generator comprises a preamble header comprising one or more repetitions of a pulse sequence.

5. The apparatus of claim 4, wherein the preamble header comprises a delimiter that indicates a start of the packet header that further comprises a sequence related to the pulse sequence.

6. The apparatus of claim 1, wherein the first indicator is configured to indicate one of first, second, and third states,

wherein the first state comprises no payload length field and no payload,

wherein the second state comprises no payload length field and a payload comprising a default payload length, and

wherein the third state comprises a payload length field and a payload comprising a length defined by the payload length field.

7. The apparatus of claim 1, wherein the packet header is coded in 1/15 repetition code.

8. The apparatus of claim 1, wherein if one or more of the packets comprise a payload, the payload comprises a payload control field comprising:

a packet type subfield configured to indicate a packet type;

a packet security key ID subfield;

a transmitter address format subfield; and

a packet acknowledgement request subfield.

9. The apparatus of claim 8, wherein the packet type subfield indicates one of first, second, and third types,

wherein the first type is a data packet,

wherein the second type is a supervisory packet, and

wherein the third type is a control packet.

10. The apparatus of claim 9, wherein if the packet type is the second type, then the data portion indicates one of first, second, and third subtypes,

wherein the first subtype is a NULL-DATA packet,

wherein the second subtype is an ACK packet, and

wherein the third subtype is a KEEP_ALIVE packet.

11. The apparatus of claim 1, wherein if one or more of the packets comprise a payload, the payload comprises a sequence number field and a transmitter address field.

12. The apparatus of claim 1, wherein if one or more of the packets comprise a payload, the payload comprises at least one of a MIC (Message Integrity Code) field or a CRC (Cyclic Redundancy Check) field, and the payload is modulated by ¼

convolutional code plus (63,55) Reed-Solomon (RS) code.

13. The apparatus of claim 1, wherein the packet generator is further configured to generate a second indicator based on a type of data in the payload, and attach the second indicator to the data.

14. The apparatus of claim 13, wherein the second indicator comprises an 8-bit control message identifier (CMID).

15. The apparatus of claim 13, wherein the second indicator is attached to the data as a first field in a data portion of the payload.

16. A method for wireless communication, comprising:

generating packets, wherein each of the packets comprises a packet header comprising a packet format field comprising a first indicator that indicates whether the packet header comprises a payload length field and whether the packet comprises a payload; and

transmitting each of the packets.

17. The method of claim 16, wherein the packets comprise variable length packets.

18. The method of claim 16, wherein each of the packets generated without the first indicator comprises a default length.

19. The method of claim 16, wherein each of the packets comprises a preamble header comprising one or more repetitions of a pulse sequence.

20. The method of claim 19, wherein the preamble header comprises a delimiter that indicates a start of the packet header that further comprises a sequence related to the pulse sequence.

21. The method of claim 16, wherein the first indicator is configured to indicate one of first, second, and third states,

wherein the first state comprises no payload length field and no payload,

wherein the second state comprises no payload length field and a payload comprising a default payload length, and

wherein the third state comprises a payload length field and a payload comprising a length defined by the payload length field.

22. The method of claim 16, wherein the packet header is coded in 1/15 repetition code.

23. The method of claim 16, wherein if one or more of the packets comprise a payload, the payload comprises a payload control field comprising:

a packet type subfield configured to indicate a packet type;

a packet security key ID subfield;

a transmitter address format subfield; and

a packet acknowledgement request subfield.

24. The method of claim 23, wherein the packet type subfield indicates one of first, second, and third types,

wherein the first type is a data packet,

wherein the second type is a supervisory packet, and

wherein the third type is a control packet.

25. The method of claim 24, wherein if the packet type is the second type, then the data portion indicates one of first, second, and third subtypes,

wherein the first subtype is a NULL-DATA packet,

wherein the second subtype is an ACK packet, and

wherein the third subtype is a KEEP_ALIVE packet.

26. The method of claim 16, wherein if one or more of the packets comprise a payload, the payload comprises a sequence number field and a transmitter address field.

27. The method of claim 16, wherein if one or more of the packets comprise a payload, the payload comprises at least one of a MIC (Message Integrity Code) field and a CRC (Cyclic Redundancy Check) field, and the payload is modulated by ¼

convolutional code plus (63,55) Reed-Solomon (RS) code.

28. The method of claim 16, further comprising:

generating a second indicator based on a type of data in the payload; and

attaching the second indicator to the data.

29. The method of claim 28, wherein the second indicator comprises an 8-bit control message identifier (CMID).

30. The method of claim 28, wherein the second indicator is attached to the data as a first field in a data portion of the payload.

31. An apparatus for wireless communication, comprising:

means for generating packets, wherein each of the packets comprises a packet header comprising a packet format field comprising a first indicator that indicates whether the packet header comprises a payload length field and whether the packet comprises a payload; and

means for transmitting each of the packets.

32. The apparatus of claim 31, wherein the packets comprise variable length packets.

33. The apparatus of claim 31, wherein each of the packets generated without the first indicator comprises a default length.

34. The apparatus of claim 31, wherein each of the packets comprises a preamble header comprising one or more repetitions of a pulse sequence.

35. The apparatus of claim 34, wherein the preamble header comprises a delimiter that indicates a start of the packet header that further comprises a sequence related to the pulse sequence.

36. The apparatus of claim 31, wherein the first indicator is configured to indicate one of first, second, and third states,

wherein the first state comprises no payload length field and no payload,

wherein the second state comprises no payload length field and a payload comprising a default payload length, and

wherein the third state comprises a payload length field and a payload comprising a length defined by the payload length field.

37. The apparatus of claim 31, wherein the packet header is coded in 1/15 repetition code.

38. The apparatus of claim 31, wherein if one or more of the packets comprise a payload, the payload comprises a payload control field comprising:

a packet type subfield configured to indicate a packet type;

a packet security key ID subfield;

a transmitter address format subfield; and

a packet acknowledgement request subfield.

39. The apparatus of claim 38, wherein the packet type subfield indicates one of first, second, and third types,

wherein the first type is a data packet,

wherein the second type is a supervisory packet, and

wherein the third type is a control packet.

40. The apparatus of claim 39, wherein if packet type is the second type, then the data portion indicates one of first, second, and third subtypes,

wherein the first subtype is a NULL-DATA packet,

wherein the second subtype is an ACK packet, and

wherein the third subtype is a KEEP_ALIVE packet.

41. The apparatus of claim 31, wherein if one or more of the packets comprise a payload, the payload comprises a sequence number field and a transmitter address field.

42. The apparatus of claim 31, wherein if one or more of the packets comprise a payload, the payload comprises at least one of a MIC (Message Integrity Code) field and a CRC (Cyclic Redundancy Check) field, and the payload is modulated by ¼

convolutional code plus (63,55) Reed-Solomon (RS) code.

43. The apparatus of claim 31, further comprising:

means for generating a second indicator based on a type of data in the payload; and

means for attaching the second indicator to the data.

44. The apparatus of claim 43, wherein the second indicator comprises an 8-bit control message identifier (CMID).

45. The apparatus of claim 44, wherein the second indicator is attached to the data as a first field in a data portion of the payload.

46. A computer program product, comprising:

a computer-readable medium comprising code executable by an apparatus to;

generate packets, wherein each of the packets comprises a packet header comprising a packet format field comprising a first indicator that indicates whether the packet header comprises a payload length field and whether the packet comprises a payload; and

transmit each of the packets.

47. The computer program product of claim 46, wherein the computer-readable medium further comprises code executable by the apparatus to:

generate a second indicator based on a type of data in the payload; and

attach the second indicator to the data.

48. A mobile communication device, comprising:

a packet generator configured to generate packets, wherein each of the packets comprises a packet header comprising a packet format field comprising a first indicator that indicates whether the packet header comprises a payload length field and whether the packet comprises a payload;

an antenna; and

a transmitter configured to transmit each of the packets through the antenna.

49. The mobile communication device of claim 48, wherein the packet generator is further configured to generate a second indicator based on a type of data in the payload, and attach the second indicator to the data.