Method and arrangement in a telecommunication system

A radio network node configured to function as a serving node in a radio communication network, and comprising:

• a radio resource management (RRM) function module configured to perform a RRM function required in the radio communication network;
• an interface and node identification module configured to identify a transport network interface and a node associated with the interface that are relevant for performance of the RRM function;
• a measurement configuration request generation module configured to form a measurement configuration request comprising measurement parameters, to be transferred to the node identified by the transport network interface and node identification module;
• a receiving module configured to:
• receive measurement reports from the node that has been requested to perform and report measurements;
• and
• provide the reported measurements to the RRM function module;
• and
• a storage module configured to store long-term network transport load data that is used to identify a mismatch between loads on the air interface and the transport network interface;
• wherein the transport network includes resources on a fixed part of a radio access network portion of the radio communication network.

A method, performed in a radio network node, for detecting the load on transport network interfaces at admission control, wherein the radio network node is part of a transport network functioning as a serving radio network node, and is responsible for performing admission control, the method comprising:

• the serving radio network node identifying a transport network interface from which transport load measurements are required for admission control, and a target radio network node associated with the identified transport network interface;
• the serving radio network node requesting the target radio network node to perform transport load measurements on the identified transport network interface, the request specifying measurement parameters, filtering parameters, and reporting conditions for the target radio network node;
• the serving radio network node receiving the measurement results from the target radio network node when the reporting conditions are fulfilled;
• the serving radio network node basing the admission control at least partly on the received measurement results;
• and
• determining, at the serving radio network node, the measurement parameters and reporting conditions;
• wherein the measurement parameters include one or more of the basic measurement interval, measurement filtering, reporting condition, transport bearer, and flow type;
• and
• wherein the filtering parameters comprise one or more of a number of successive measurement intervals, a minimum number of packets to be measured in each interval, and whether filtering averaging is linear or non-linear.

A method, performed in a radio network node, for detecting the load on transport network interfaces at admission control, wherein the radio network node is part of a transport network functioning as a serving radio network node, and is responsible for performing admission control, the method comprising:

• the serving radio network node identifying a transport network interface from which transport load measurements are required for admission control, and a target radio network node associated with the identified transport network interface;
• the serving radio network node requesting the target radio network node to perform transport load measurements on the identified transport network interface, the request specifying measurement parameters, and reporting conditions for the target radio network node;
• the serving radio network node receiving the measurement results from the target radio network node when the reporting conditions are fulfilled;
• the serving radio network node basing the admission control at least partly on the received measurement results;
• and
• the serving radio network node storing long-term network transport load data that is used to identify a mismatch between loads on the air interface and the transport network interface.