Method and system for joint reverse link access and traffic channel radio frequency overload control
View Patent ↗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.
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 total loading of the reverse link includes both a loading of an access channel and a loading of a traffic channel;
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;
the joint access and traffic overload control module controls the total loading of the reverse link based on an effect that dropping a call from the traffic channel has on the loading of the access channel; and
a rise over thermal (RoT) monitor connected to the joint access and traffic control module monitors RoT of both the access channel and the traffic channel of the reverse link and provides RoT measurement input to the joint access and traffic control module.
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 the RoT monitor is integral with the base station.
7. 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.
8. 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.
9. A cellular network reverse link control module comprising:
a joint overload control coordinator that controls the total loading of the cellular network reverse link, the total loading of the reverse link including both a loading of an access channel and a loading of a traffic channel;
a rise over thermal (RoT) monitor that provides a RoT measurement input of both the access channel and the traffic channel to the joint overload control coordinator;
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 RoT measurement input, the access channel load relief plan, the traffic channel load relief plan and an effect that dropping a call from the traffic channel has on the loading of the access channel;
wherein the cellular network reverse link control module is implemented in a computing apparatus.
10. The control module according to claim 9 , wherein the RoT monitor is a base station.
11. The control module according to claim 9 , wherein the control module is adapted to receive access loading input from an access load monitor.
12. The control module according to claim 9 , wherein the control module is adapted to receive traffic loading input from a traffic load monitor.
13. A method for controlling a total loading of a cellular network reverse link, the total loading including both a loading of an access channel and a loading of a traffic channel, said method comprising the steps of:
generating an access channel load relief plan, including:
inputting access load input; and
inputting a rise over thermal (RoT) measurement input of both the access channel and the traffic channel;
generating a traffic channel load relief plan; and
relieving total loading of the cellular network reverse link based on the RoT measurement input, the access channel load relief plan, the traffic channel load relief plan and an effect that dropping a call from the traffic channel has on the loading of the access channel.
14. The method according to claim 13 , additionally comprising the step of calculating an access loading of the reverse link.
15. The method according to claim 13 , additionally comprising the step of calculating a traffic loading of the reverse link.
16. A method for controlling a total loading of a cellular network reverse link, the total loading including both a loading of an access channel and a loading of a traffic channel, said method comprising the steps of:
generating an access channel load relief plan;
generating a traffic channel load relief plan, including:
inputting traffic load input; and
inputting rise over thermal (RoT) measurement input of both the access channel and the traffic channel; and
relieving total loading of the cellular network reverse link based on the RoT measurement input, the access channel load relief plan, the traffic channel load relief plan and an effect that dropping a call from the traffic channel has on the loading of the access channel.
17. A method for controlling a total loading of a cellular network reverse link, the total loading including both a loading of an access channel and a loading of a traffic channel, said method comprising the steps of:
generating an access channel load relief plan;
generating a traffic channel load relief plan;
calculating a rise over thermal (RoT) of both the access channel and the traffic channel; and
relieving total loading of the cellular network reverse link based on the RoT measurement input, the access channel load relief plan, the traffic channel load relief plan and an effect that dropping a call from the traffic channel has on the loading of the access channel.