Techniques capable of providing efficient scheduling of packet data traffic in wireless data networks

• US 20070104132A1
• Filed: 11/07/2005
• Published: 05/10/2007
• Est. Priority Date: 11/07/2005
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Venkatachalam, Muthaiah, Srinivasan, Roshni, Rajagopalan, Bala
• Application Number:
  US11/269,398
• Publication Number:
  US 20070104132A1
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/215 using token-bucket
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 47/50 Queue scheduling
• CPC Class Codes: H04L 47/6215 Individual queue per QOS, rate or priority
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

An embodiment of the present invention provides a method comprising, using packet knowledge at a base station to efficiently schedule uplink transmissions from a subscriber station. The present method may further comprise using the type of packet and the destination subscriber station as the packet knowledge and, further, the type of packet may include voice, data or signaling and each of the types of packet may be given a packet classifier.

Claims

1. An apparatus, comprising:

a base station capable of using packet knowledge to efficiently schedule uplink transmissions from a subscriber station.

2. The apparatus of claim 1, wherein said packet knowledge comprises the type of packet and the destination subscriber station (SS).

3. The apparatus of claim 2, wherein said type of packet includes voice, data, signaling or other application specific information and wherein each of said types of packet is given to a packet classifier.

4. The apparatus of claim 3, wherein said base station further comprises a plurality of queues such that one queue per type of packet is assigned for each SS served.

5. The apparatus of claim 4, wherein said type of packet corresponds to a given traffic class.

6. The apparatus of claim 3, further comprising a token bucket policing technique for data traffic to enforce the rate at which said data traffic is accepted for transmission.

7. The apparatus of claim 1, further comprising a scheduler at said BS that keeps track of overall resource availability in the uplink and downlink directions, and allocates capacity for uplink and downlink transmissions

8. The apparatus of claim 3, wherein when said packet classifier indicates voice traffic, said BS monitors downlink traffic, and when it detects silence, it begins scheduling uplink transmission opportunities in anticipation of a change in direction.

9. The apparatus of claim 3, wherein when said packet classifier indicates data traffic, said BS schedules an uplink transmission opportunity for acknowledgements and other responses when it sends downlink TCP or UDP traffic.

10. A method, comprising:

using downlink packet knowledge at a base station to efficiently schedule uplink transmissions from a subscriber station.

11. The method of claim 10, further comprising using the type of packet and the destination SS as said packet knowledge.

12. The method of claim 11, further comprising including voice, data or signaling as the type of packet and wherein each of said types of packet is given to a packet classifier.

13. The method of claim 11, further comprising assigning one queue by a BS per traffic class from a plurality of queues for each SS served.

14. The method of claim 13, wherein said traffic classes includes voice, data and signaling.

15. The method of claim 12, further comprising using a token bucket policing technique for data traffic to enforce the rate at which said data traffic is accepted for transmission.

16. The method of claim 10, further comprising using a scheduler at said BS that keeps track of overall resource availability in the uplink and downlink directions, and allocates capacity for uplink and downlink transmissions.

17. The method of claim 12, wherein when said packet classifier indicates downlink voice traffic and said BS detects silence, it begins scheduling uplink transmission opportunities in anticipation of a change in direction.

18. The method of claim 12, wherein when said packet classifier indicates data traffic, said BS schedules an uplink transmission opportunity for acknowledgements and other responses when it sends downlink TCP or UDP traffic.

19. A system, comprising:

a subscriber station in a wireless communication network; and

a base station capable of using downlink packet knowledge to schedule uplink transmissions from said subscriber station to said base station efficiently

20. The system of claim 19, wherein said packet knowledge comprises the type of packet and the destination SS.

21. The system of claim 20, wherein said type of packet includes voice, data, signaling and wherein each of said types of packet is given to a packet classifier.

22. The system of claim 21, further comprising a token bucket policing technique for data traffic to enforce the rate at which said data traffic is accepted for transmission.

24. The machine-accessible medium of claim 22, further comprising said instructions causing said machine to use the type of packet and the destination SS as said packet knowledge.

28. The machine-accessible medium of claim 22, further comprising said instructions causing said machine to use a scheduler at said BS that keeps track of overall resource availability in the uplink and downlink directions, and allocates capacity for uplink and downlink transmissions

23. A machine-accessible medium that provides instructions, which when accessed, cause a machine to perform operations comprising:

using packet knowledge at a base station to efficiently schedule uplink transmissions from a subscriber station.

25. The machine-accessible medium of claim 23, further comprising said instructions causing said machine to include voice, data or signaling as the type of packet and giving each of said types of packet a packet classifier.

26. The machine-accessible medium of claim 23, further comprising said instructions causing said machine to assign at least one queue by a BS per traffic class from a plurality of queues for each SS served.

27. The machine-accessible medium of claim 23, further comprising said instructions causing said machine to use a token bucket policing technique for data traffic to enforce the rate at which said data traffic is accepted for transmission.