This TS specifies the procedures used at the CTS radio interface (Reference Point Um*, see TS 03.56
) for Call Control (CC), Mobility Management (MM), Radio Resource (RR).
These procedures are defined in terms of messages exchanged over the control channels of the radio interface. The CTS control channels are described in TS 03.52
. The structured functions and procedures of this protocol and the relationship with other layers and entities are described in general terms in TS 04.07