Method, apparatus, and system for medium access control

• US 20050135403A1
• Filed: 10/13/2004
• Published: 06/23/2005
• Est. Priority Date: 10/15/2003
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Walton, Jay Rodney, Ketchum, John W., Nanda, Sanjiv, Wallace, Mark S.
• Granted Patent: US 8,284,752 B2
• Time in Patent Office: Days
• US Class Current: 370/437
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/325 in the network layer [OSI layer 3], e.g. X.25 H04L69/16 takes precedence
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. In one aspect, an apparatus comprises a first layer for receiving one or more packets from one or more data flows and for generating one or more first layer Protocol Data Units (PDUs) from the one or more packets. In another aspect, a second layer is deployed for generating one or more MAC frames based on the one or more MAC layer PDUs. In another aspect, a MAC frame is deployed for transmitting one or more MAC layer PDUs. The MAC frame may comprise a control channel for transmitting one or more allocations. The MAC frame may comprise one or more traffic segments in accordance with allocations.

Claims

1. An apparatus comprising:

a first layer for;

receiving one or more flows, each flow comprising one or more packets; and

generating one or more Medium Access Control (MAC) layer Protocol Data Units (PDUs) based on the one or more packets from the one or more flows; and

a second layer for;

generating one or more MAC frames based on the one or more MAC layer PDUs, each MAC frame comprising;

a control channel for transmitting one or more medium allocations;

one or more traffic segments, each for transmitting one or more MAC layer Protocol Data Units (PDUs) in accordance with a medium allocation.

2. The apparatus of claim 1, wherein the MAC frame further comprises a broadcast channel for transmitting parameters of the MAC frame.

3. The apparatus of claim 1, wherein the MAC frame further comprises a beacon indicative of a MAC frame boundary.

4. The apparatus of claim 1, wherein the control channel comprises a plurality of subchannels, each of the subchannels comprising one or more allocations, each subchannel transmitted at one of a plurality of transmission formats.

5. The apparatus of claim 1, wherein the one or more traffic segments comprises one or more forward traffic segments.

6. The apparatus of claim 5, wherein the one or more forward traffic segments comprises transmission of a MAC PDU from a first device to a second device.

7. The apparatus of claim 1, wherein the one or more traffic segments comprises one or more reverse traffic segments.

8. The apparatus of claim 7, wherein the one or more reverse traffic segments comprises transmission of a MAC PDU from a second device to a first device.

9. The apparatus of claim 1, wherein the one or more traffic segments comprises one or more peer to peer traffic segments.

10. The apparatus of claim 9, wherein the one or more peer to peer traffic segments comprises ad hoc transmission.

11. The apparatus of claim 9, wherein the one or more peer to peer traffic segments comprises scheduled transmission.

12. The apparatus of claim 1, wherein the one or more traffic segments comprises one or more contention based traffic segments.

13. The apparatus of claim 1, wherein the one or more traffic segments comprises one or more random access traffic segments.

14. The apparatus of claim 1, wherein the first layer comprises an adaptation layer for generating adaptation layer PDUs.

15. The apparatus of claim 14, wherein the adaptation layer performs segmentation of one or more packets from the one or more flows.

16. The apparatus of claim 14, wherein the adaptation layer performs reassembly of one or more packets from the one or more flows.

17. The apparatus of claim 14, wherein the adaptation layer performs flow classification of one or more packets from the one or more flows.

18. The apparatus of claim 17, wherein the flow classification is performed according to Quality of Service (QoS).

19. The apparatus of claim 14, wherein the adaptation layer performs multicast mapping for one or more packets from the one or more flows.

20. The apparatus of claim 14, wherein the MAC layer comprises a data link layer for generating data link layer PDUs from the adaptation layer PDUs.

21. The apparatus of claim 20, wherein the MAC layer comprises a common MAC layer aggregating one or more data link layer PDUs corresponding to one or more flows to form a MAC layer PDU.

22. A method comprising:

receiving one or more flows at a first layer, each flow comprising one or more packets;

generating one or more Medium Access Control (MAC) layer Protocol Data Units (PDUs) based on the one or more packets from the one or more flows; and

forming a MAC frame comprising;

a control channel for transmitting one or more medium allocations;

one or more traffic segments, each for transmitting one or more MAC layer Protocol Data Units (PDUs) in accordance with a medium allocation;

23. The method of claim 22, further comprising transmitting a MAC layer PDU in a traffic segment in accordance with a medium allocation.

24. The method of claim 22, further comprising receiving a MAC layer PDU in a traffic segment in accordance with a medium allocation.

25. The method of claim 22, further comprising transmitting the control channel.

26. The method of claim 25, wherein the control channel comprises a plurality of subchannels, each of the subchannels comprising one or more allocations, each subchannel transmitted at one of a plurality of transmission formats.

27. The method of claim 22, further comprising performing adaptation layer processing to generate adaptation layer PDUs from one or more packets from the one or more flows.

28. The method of claim 27, further comprising performing data link layer processing to generate data link layer PDUs from the adaptation layer PDUs.

29. The method of claim 27, further comprising performing common MAC processing to aggregate one or more adaptation layer PDUs to form a MAC layer PDU.

30. The method of claim 22, further comprising transmitting a forward traffic segment.

31. The method of claim 22, further comprising transmitting a reverse traffic segment.

32. The method of claim 22, further comprising transmitting a peer to peer traffic segment.

33. The method of claim 22, further comprising transmitting a random access traffic segment.

34. An apparatus comprising:

means for receiving one or more flows, each flow comprising one or more packets and generating one or more MAC layer PDUs from one or more packets from the one or more flows; and

means for generating a MAC frame based on one or more MAC layer PDUs, the MAC frame comprising;

a control channel for transmitting one or more medium allocations; and

one or more traffic segments, each for transmitting one or more MAC layer Protocol Data Units (PDUs) in accordance with a medium allocation; and

35. The apparatus of claim 34, further comprising means for transmitting a MAC layer PDU in a traffic segment.

36. The apparatus of claim 34, further comprising means for receiving a MAC layer PDU in a traffic segment.

37. Computer readable media operable to perform the following steps:

receiving one or more flows at a first layer, each flow comprising one or more packets;

generating one or more Medium Access Control (MAC) layer Protocol Data Units (PDUs) based on the one or more packets from the one or more flows; and

forming a MAC frame comprising;

a control channel for transmitting one or more medium allocations;

one or more traffic segments, each for transmitting one or more MAC layer Protocol Data Units (PDUs) in accordance with a medium allocation;