METHOD OF DYNAMIC PERSISTANCE CONTROL IN WIRELESS COMMUNICATION

• US 20080159160A1
• Filed: 12/29/2006
• Published: 07/03/2008
• Est. Priority Date: 12/29/2006
• Status: Abandoned Application

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: DAS, DEEPAK, LEE, JUNG AH
• Application Number:
  US11/618,121
• Publication Number:
  US 20080159160A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 1/203 Details of error rate determination, e.g. BER, FER or WER
• CPC Class Codes: H04L 47/11 Identifying congestion
• CPC Class Codes: H04W 28/0205 at the air interface dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/0252 per individual bearer or channel dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/0284 detecting congestion or overload during communication monitoring arrangements H04L43/00
• CPC Class Codes: H04W 74/0866 using a dedicated channel for access
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

The present invention provides a method of wireless communication. One embodiment of the method includes determining a persistence parameter for at least one packet transmission based upon information indicative of a congestion level.

Claims

1. A method of wireless communication, comprising:

determining a persistence parameter for at least one packet transmission based upon information indicative of a congestion level.

2. The method of claim 1, wherein determining the persistence parameter based upon the information indicative of the congestion level comprises determining the persistence parameter based upon at least one of a backlog and a load.

3. The method of claim 2, wherein determining the persistence parameter comprises determining the persistence parameter based upon at least one of a backlog and a load for at least one access service class associated with at least one base station.

4. The method of claim 2, wherein determining the persistence parameter based upon the backlog comprises estimating a forward error rate based upon at least one cyclic redundancy check error associated with at least one received random access channel message.

5. The method of claim 4, wherein determining the persistence parameter based upon the backlog comprises averaging the cyclic redundancy check errors for at least one detected user, at least one access slot, and at least one access service class signature.

6. The method of claim 2, wherein determining the persistence parameter based upon the backlog comprises estimating a forward error rate using a virtual decoder.

7. The method of claim 6, wherein estimating the forward error rate using the virtual decoder comprises:

estimating a ratio of signal energy per bit to additive noise and interference (Eb/No); and

estimating the forward error rate using the estimated ratio and at least one of a link-level results and a lookup table.

8. The method of claim 2, wherein estimating the congestion level based upon the load comprises estimating the load based on a number of acknowledged preambles and a number of available resources.

9. The method of claim 8, wherein estimating the congestion levels comprises estimating at least one loaded for at least one access service class based upon a number of acknowledged preambles and a number of available resources associated with said at least one access service class.

10. The method of claim 1, wherein determining the persistence parameter based upon the information indicative of the congestion level comprises determining the persistence parameter based upon a value of the congestion level averaged over a selected time period.

11. The method of claim 1, comprising providing information indicative of the determined persistence parameter to at least one mobile unit.