Method and apparatus for providing adaptive fast radio channel congestion control
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsGunnar Bark, Niclas Wiberg, Ke Wang Helmersson
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Abstract
Downlink congestion is accurately detected and congestion control is more effectively provided without decreasing the system downlink capacity. The characteristics of the downlink transmission of the base station are monitored and used to selectively adjust a fast congestion control (FCC) alarm threshold value in each base station. A FCC relief action is initiated upon detecting the downlink power exceeding the FCC alarm threshold value, i.e., potential downlink congestion. The FCC relief action includes temporarily blocking data services in the system or rapidly decreasing the downlink transmit power of the packet data user's Dedicated Physical Channels in the base stations.
Claims21
A base station comprising:
- means for providing channel control including an alarm which detects channel congestion;
- and
- means for providing congestion relief upon detecting channel congestion, wherein said alarm includes:
- means for monitoring at least one of a plurality of characteristics of downlink transmission on radio channels of the base station;
- means for comparing said at least one of characteristics of downlink transmission and a threshold value of said alarm;
- and
- means for selectively adjusting said threshold value based on the detected characteristics of the downlink transmission.
A method for monitoring transmission congestions in a radiocommunication system, the method comprising the steps of:
- monitoring at least one of a plurality of characteristics of downlink transmission on radio channels of a base station;
- selectively adjusting a threshold value based on the detected characteristics of the downlink transmission;
- comparing said at least one of a plurality of characteristics of downlink transmission and said threshold value;
- and
- determining the variation over time of the downlink transmit power of the base station.
A method for relieving transmission congestions in a base station of a radiocommunication system, the method comprising the steps of:
- monitoring at least one of a plurality of characteristics of downlink transmission on radio channels of a base station;
- selectively adjusting a threshold value based on the detected characteristics of the downlink transmission;
- comparing said at least one of a plurality of characteristics of downlink transmission and said threshold value;
- and
- temporarily blocking downlink transmission on radio channels of the base station based on the comparing step.
Dependencies are inferred from the claim text.