08_ResourceManager_2004(3)

08_ResourceManager_2004

ResourceManager

The main function of RM is to allocate logical radio resources of BS according to the channel request by the RRC layer for each radio connection The RM is located in the RNC and it works in close co-operation with AC and PS The actual input for resource allocation comes from AC/PS and RMinforms the PS about the resource situation The RM is able to switch codes and code types for different reasons such as soft handover and defragmentation of code tree Manages the BS logical resources

BS reports the available logical HW resourcesTransport resource manager RNC HW manager (L1/L2)

Requests for other resources such as ATM Maintains the code tree

Allocates the DL spreading (=channelization) codes, UL scrambling code, UL spreading (=channelisation) code type

Prevents fragmentation, may cause extraHO's