Congestion control within a radio access network
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsMats Sågfors, Paul Teder, Tarmo Kuningas
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Abstract
A method of controlling the volume of user-plane traffic on the Iub or Iub/Iur interface between a Radio Network Controller and a Node B of a UMTS Radio Access Network during periods of overload. The method comprises, for individual uplink or downlink connections established over the Iub or Iub/Iur interface, monitoring at the Radio Network Controller the late arrival of frames at the Radio Network Controller or at the Node B transmitted over the Iub or Iub/Iur interface, and based on the results of said monitoring, causing a reduction in the Iub or Iub/Iur load for a connection when appropriate.
Claims19
A method of controlling the volume of user-plane traffic on the Iub or Iub/Iur interface between a Radio Network Controller and a Node B of a UMTS Radio Access Network during periods of overload, the method comprising:
- for individual uplink or downlink connections established over the Iub or Iub/Iur interface, monitoring at the Radio Network Controller the late arrival of frames carrying user-plane data at the Radio Network Controller or at the Node B transmitted over the Iub or Iub/Iur interface, and
- based on the results of said monitoring, causing a reduction in the Iub or Iub/Iur load for a connection when appropriate.
A method of controlling the volume of user-plane traffic on the Iub or Iub/Iur interface between a Radio Network Controller and a Node B of a UMTS Radio Access Network during periods of overload, the method comprising:
- for individual downlink connections established over the Iub or Iub/Iur interface, monitoring at the Node B the late arrival of frames carrying user-plane data at the Node B transmitted over the Iub or Iub/Iur interface, and
- based on the results of said monitoring causing a reduction in the Iub or Iub/Iur load for a connection when appropriate.
A method of controlling the volume of user-plane traffic on the Iub or Iub/Iur interface between a Radio Network Controller and a Node B of a UMTS Radio Access Network during periods of overload, the method comprising:
- for individual uplink or downlink connections established over the Iub or Iub/Iur interface, monitoring the late arrival of frames carrying user-plane data at the Radio Network Controller or at the Node B transmitted over the Iub or Iub/Iur interface, and
- based on the results of said monitoring, causing a reduction in the Iub or Iub/Iur load by restricting the allowed transport formats available to the sending Medium Access Control entity on a per connection basis.
A Radio Network Controller node configured to control the volume of user-plane traffic on the Iub or Iub/Iur interface between the Radio Network Controller and a Node B of a UMTS Radio Access Network during periods of overload, the Radio Network Controller comprising:
- monitoring circuitry configured to monitor a late arrival of frames carrying user-plane data at the Radio Network Controller or at the Node B transmitted over the Iub or Iub/Iur interface for individual uplink or downlink connections established over the Iub or Iub/Iur interface, and
- load control circuitry configured to cause a reduction in the Iub or Iub/Iur load for a connection when appropriate based on monitoring information generated by the monitoring circuitry.
Dependencies are inferred from the claim text.