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System and method for mitigating network congestion using fast congestion detection in a wireless radio access network (RAN)
System and method for mitigating network congestion using fast congestion detection in a wireless radio access network (RAN)
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机译:用于在无线接入网(RAN)中使用快速拥塞检测来缓解网络拥塞的系统和方法
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摘要
Fast congestion detection is implemented in a wireless radio access network (RAN) to mitigate congestion by classifying bearers into bearer types using bearer metrics and monitoring bearers for type specific anomalies to obtain anomaly data. Congestion is detected based on the anomaly data to obtain congestion information that is exported to a network node to mitigate network congestion. Bearer metrics include radio link protocol (RLC) buffer size information, physical resource block (PRB) utilization information, and transmission burst interval information. The transmission burst interval information includes information on time intervals between successive time periods when a RLC buffer is empty. The bearers are classified into Type I and Type II bearers. Type I bearers are bearers displaying bursty data transfer behavior, and Type II bearers are bearers displaying a continuous stream of data transfer behavior.
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