System and method for determining cell congestion level
AssigneeAlcatel-Lucent USA Inc.
InventorsEdward Grinshpun, Charles Payette, Bruce Cilli, Sameer Sharma, Harish Viswanathan
Life of this patent
Estimating the term…
Abstract
A metric of cell congestion is determined using an average physical resource block rate that is expected to be allocated for a very active user equipment bearer that is a persistent average rate. The average physical resource block rate is mapped to congestion levels and this information is exported to an application function or a radio access network function in order to mitigate congestion. An average bearer throughput for the user equipment can be calculated based on the average physical resource block rate.
Claims28
A method of determining cell congestion, comprising:
- determining, by one or more processors of at least one network node, an average physical resource block rate to be allocated by a scheduler for very active bearers, the very active bearers being bearers that continuously attempt to obtain a maximal fair share of physical resource blocks that are available by the scheduler for a given duration of time, the determining of the average physical resource block rate including,
- subtracting an aggregate physical resource block rate for less active bearers from an available aggregate physical resource block rate and dividing by the number of very active bearers, the average physical resource block rate and the available aggregate physical resource block rate being for a particular quality of service level and traffic direction;
- mapping, by the one or more processors, the average rate of physical resource blocks to congestion levels to produce congestion level information;
- and
- exporting, by the one or more processors, the congestion level information.
A method of determining average available wireless network throughput for a user equipment (UE) bearer of a wireless Internet Protocol Connectivity Access Network (IP-CAN), comprising:
- receiving, by one or more first processors of a first node, an average physical resource block rate in the form of cell congestion level information for a cell from a second node, the second node being part of the IP-CAN, wherein the average rate of physical resource blocks is a persistent average rate of physical resource blocks over a first time interval that is based on an instant average rate of physical resource blocks and averages of auxiliary data;
- receiving, by the one or more first processors, average channel condition information for at least one UE served by the cell;
- calculating, by the one or more first processors, an average bearer throughput for the UE based on the average physical resource block rate and the average channel condition information;
- and
- exporting, by the one or more processors, the average bearer throughput for the UE.
The method of 9, wherein the exporting includes forwarding the average bearer throughput for the UE to at least one of the application function and an internet protocol connectivity access network (IP-CAN) function that controls an application data flow.
At least one network node, comprising:
- one or more a processors configured to,
- determine an average physical resource block rate to be allocated by a scheduler for very active bearers, the very active bearers being bearers that continuously attempt to obtain a maximal fair share of physical resource blocks that are available by the scheduler for a given duration of time, the determining of the average physical resource rate block including,
- subtracting an aggregate physical resource block rate for less active bearers from an available aggregate physical resource block rate and dividing by the number of very active bearers, the average physical resource block rate and the available aggregate physical resource block rate being for a particular quality of service level and traffic direction;
- map the average rate of physical resource blocks to congestion levels to produce congestion level information;
- and
- export the congestion level information.
A first node, comprising:
- one or more processors configured to,
- receive an average physical resource block rate in the form of cell congestion level information for a cell from a second node, the second node being part of the IP-CAN, wherein the average rate of physical resource blocks is a persistent average rate of physical resource blocks over a first time interval that is based on an instant average rate of physical resource blocks and averages of auxiliary data;
- receive average channel condition information for at least one UE served by the cell;
- calculate an average bearer throughput for the UE based on the average physical resource block rate and the average channel condition information;
- and
- export the average bearer throughput for the UE.
Dependencies are inferred from the claim text.