Method for upstream priority lookup at physical interface within a wireless device

• US 20080037556A1
• Filed: 08/17/2007
• Published: 02/14/2008
• Est. Priority Date: 09/27/2001
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Shallow, Gale, Denney, Lisa, Pantelias, Niki, Horton, John
• Granted Patent: US 7,990,952 B2
• Time in Patent Office: Days
• US Class Current: 370/395.42
• CPC Class Codes: H04L 12/2801 Broadband local area networks

Abstract

A traffic prioritization system and method performs a coarse classification of upstream bursts at the physical interface of a wireless communications device. The wireless device monitors and controls communications with a plurality of remote wireless communications devices throughout a widely distributed network, including the Internet. The traffic prioritization system includes a burst receiver that receives and sends the upstream bursts to a classifier. At an appropriate time, the classifier receives the upstream bursts and queries a priority lookup table (LUT) to determine a priority classification. The priority classification is used to separate the bursts into two or more priority levels. The higher priority level is used to designate services having a low tolerance for delay, such as telephony. Upon classification, the upstream bursts are forwarded to one of several priority queues. Each priority queue corresponds to at least one priority level. The headend device services each priority queue such that the higher priority queues are serviced before the lower priority queues.

Claims

1. A method for determining a priority classification of a burst at a physical interface of a wireless communications device, comprising the steps of:

detecting an identifier from the burst at the physical interface of a wireless device; and

matching said identifier to a priority indicator to determine the priority classification.

2. The method of claim 1, wherein said matching step further comprises the step of:

querying a memory to determine said priority indicator.

3. The method of claim 1, further comprising the step of:

storing the burst prior to said detecting step.

4. The method of claim 1, wherein said detecting step further comprises the step of parsing a header associated with the burst to detect said identifier.

5. The method of claim 1, wherein said identifier is associated with a service.

6. The method of claim 1, wherein said identifier is associated with a quality of service.

7. The method of claim 1, wherein said identifier is associated with a burst source.

8. The method of claim 1, wherein said identifier is associated with at least two of a service, a quality of service, and a burst source.

9. The method of claim 1, wherein said priority indicator represents one of two levels of priority.

10. The method of claim 1, wherein said priority indicator represents one of three or more levels of priority.

11. The method of claim 1, further comprising the step of:

forwarding the burst to a priority queue associated with said priority indicator.

12. The method of claim 11, further comprising the step of:

postpending said priority indicator to the burst prior to said forwarding step.

13. The method of claim 1, wherein the burst includes voice over an Internet protocol signal.

14. The method of claim 1, wherein the burst includes video signals.

15. The method of claim 1, wherein the burst includes a webcast video production.

16. A method for determining a priority classification of a plurality of bursts at a physical interface to a central controller within a wireless network, comprising the steps of:

processing the plurality of bursts at the physical interface to detect an identifier from each burst; and

matching said identifier from each burst to a priority indicator, wherein said priority indicator represents one of two or more available priority levels.

17. The method of claim 16, further comprising the step of:

providing a plurality of priority queues, each priority queue being associated with at least one priority indicator.

18. The method of claim 17, further comprising the step of:

forwarding each burst to one of said plurality of priority queues associated with said priority indicator from said matching step.

19. The method of claim 17, further comprising the step of:

servicing said plurality of priority queues according to a designated order of priority.

20. The method of claim 17, further comprising the step of:

servicing said plurality of priority queues to empty each higher priority queue prior to servicing a lower priority queue.