| 摘要 |
The present invention relates to provision of data bearers in a communication system ( 2 ) comprising a first node ( 1 ) and a second node ( 4 ). A message is generated that associates with provision of control of a data bearer between the nodes ( 1,4 ), said message being based on a data bearer control protocol. Information that associates with responsibilities regarding a quality of service function of the data bearer is included in the message. The message is then transported between the nodes ( 1,4 ). The quality of service function of the data bearer is controlled by a control node ( 1,16 ) that has been selected based on said information added in the message.
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