ed on the DPCCH and the Transport Format Combination Information (TFCI) is also sent as it contains information, for example, about bit rate and interleaving. Parameter Planning Dedicated Physical Data Channel (DPDCH) The DPDCH is a variable bit rate channel. The DPDCH bit rate is indicated by TFCI bits on the DPCCH. User data, higher layer signalling, e.g. mobile measurements, active set updates and packet allocations are all sent on the DPDCH. Downlink Dedicated Physical Channel (DDPCH) In the downlink direction the DPCCH and DPDCH are time multiplexed. This causes discontinuous transmission. Uplink Dedicated Physical Channel (UDPCH) In the uplink direction the transmission is continuous. The DPCCH and DPDCH are I-Q/code multiplexed into the UDPCH. Planning Idle Mode Common Channel Power Settings The transmit power of the common channels is controlled by common channel power setting parameters. The common pilot indication channel (CPICH) carries the pilot bit sequence and is used as the quality estimation channel for handover and cell reselection procedures. PLMN Selection The PLMN selection procedure is used to find the network that the mobile is allowed to use its resources. The selected PLMN can be the home PLMN, the network that the subscriber has a subscription with, or any other network that allows the mobile to use its resources. The PLMN search procedure starts in two cases: 1. After power-on. The UE looks for the home PLMN. If the UE has been on another PLMN before switch-off or the previously used PLMN was not the home PLMN, the UE starts the PLMN selection procedure. 2. Periodically. If the UE is roaming (camping in other than home PLMN) it searches for the home PLMN. In a PLMN search procedure the UE scans through all the carrier frequencies. In the manual mode, the UE gives the user an option to select from a list of found PLMNs where the signal level is considered good enough (RSCP, or received signal code power > -95 dBm). In the automatic mode, the UE automatically selects the PLMN in the follow