Radio link parameter updating method in mobile communication system

[0098]The present invention is implemented in such a mobile communication system as the UMTS (universal mobile telecommunications system), which has been recently developed by 3GPP. However, without being limited thereto, the present invention can be also applied to a communication system operated with different standards. Preferred embodiments of the present invention will now be described.

[0099]Referring to the HSDPA system, an HSDPA scheduler exists in a node B. The HSDPA scheduler of the node B transmits control information related to an HS-PDSCH through a shared control channel (HS-SCCH) to a UE in downlink and a HS-DSCH data through a HS-PDSCH to the UE in downlink. In response, the UE transmits a HSDPA-related feedback information (ACK / NACK, and CQI) to the node B through an HS-DPCCH in uplink. The HSDAP scheduler of Node B can configure a HSDPA related parameter (HS-DPCCH related, HS-DSCH related, or HS-SCCH related parameter) to control the transmissions in downlink and upli