Method and system for joint reverse link access and traffic channel radio frequency overload control

• US 20100008229A1
• Filed: 07/11/2008
• Published: 01/14/2010
• Est. Priority Date: 07/11/2008
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Alcatel-Lucent USA, Inc. (Nokia Corporation)
• Inventors: Bi, Qi, Yang, Yang, Ye, Sigen
• Granted Patent: US 7,990,855 B2
• Time in Patent Office: Days
• US Class Current: 370/237
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control

Abstract

A system for joint reverse link access and traffic channel overload control in a cellular network includes relieving the reverse link total loading to optimize resource utilization and distribution among different types of mobile device users. The cellular network includes a plurality of mobile stations that wirelessly communicate with a base station over a reverse link, using a CDMA or similar communications protocol. A joint access and traffic overload control module creates an access channel load relief plan, a traffic channel load relief plan and then relieves the total loading of the reverse link based upon both the access channel load relief plan and the traffic channel load relief plan.

Claims

1. A cellular network comprising:

one or more mobile devices that wirelessly communicate with a base station over a reverse link; and

a joint access and traffic overload control module that communicates with the base station to control a total loading of the reverse link;

wherein the joint access and traffic overload control module controls the total loading of the reverse link using both access loading input and traffic loading input.

2. The cellular network according to claim 1, wherein the joint access and traffic overload control module is a software module.

3. The cellular network according to claim 1, wherein the joint access and traffic overload control module is a hardware module.

4. The cellular network according to claim 1, wherein the joint access and traffic overload control module is integral with the base station.

5. The cellular network according to claim 1, wherein the joint access and traffic overload control module is integral with a radio network controller that is connected to the base station.

6. The cellular network according to claim 1, wherein an RoT monitor connected to the joint access and traffic control module monitors RoT of the reverse link and provides RoT measurement input to the joint access and traffic control module.

7. The cellular network according to claim 6, wherein the RoT monitor is integral with the base station.

8. The cellular network according to claim 1, wherein an access load monitor connected to the joint access and traffic control module monitors access channel loading of the reverse link and provides access loading input to the joint access and traffic control module.

9. The cellular network according to claim 1, wherein a traffic load monitor connected to the joint access and traffic control module monitors traffic channel loading of the reverse link and provides traffic loading input to the joint access and traffic control module.

10. A cellular network reverse link control module comprising:

a joint overload control coordinator that controls the total loading of the cellular network reverse link;

an access overload controller for providing an access channel load relief plan to the joint overload control coordinator; and

a traffic overload controller for providing a traffic channel load relief plan to the joint overload control coordinator;

wherein the joint overload control coordinator relieves the total loading of the cellular network reverse link by relieving the access channel loading, the traffic channel loading or a combination thereof, based on the access channel load relief plan and the traffic channel load relief plan.

11. The control module according to claim 10, wherein the control module is adapted to receive RoT measurement input from an RoT monitor.

12. The control module according to claim 11, wherein the RoT monitor is a base station.

13. The control module according to claim 10, wherein the control module is adapted to receive access loading input from an access load monitor.

14. The control module according to claim 10, wherein the control module is adapted to receive traffic loading input from a traffic load monitor.

15. A method for controlling a total loading of a cellular network reverse link, said method comprising the steps of:

generating an access channel load relief plan;

generating a traffic channel load relief plan; and

relieving total loading of the cellular network reverse link based on the access channel load relief plan and the traffic channel load relief plan.

16. The method according to claim 15, wherein generating the access load relief plan includes inputting access load input and inputting RoT measurement input.

17. The method according to claim 15, wherein generating the traffic load relief plan includes inputting traffic load input and inputting RoT measurement input.

18. The method according to claim 15, additionally comprising the step of calculating an RoT.

19. The method according to claim 15, additionally comprising the step of calculating an access loading of the reverse link.

20. The method according to claim 15, additionally comprising the step of calculating a traffic loading of the reverse link.