plink and Downlink Modulation 4.3.2 Dedicated Uplink Physical Channels 4.3.2.1 Spreading DPCCH/DPDCH 4.3.3 Common Uplink Physical Channels 4.3.3.1 Physical Random Access Channel - PRACH 4.3.3.2 Physical Common Packet Channel (PCPCH) 4.3.3.3 Spreading Common Uplink Physical Channels 4.3.4 Uplink Channelization Codes 4.3.4.1 DPCCH/DPDCH Code Allocation 4.3.4.2 PRACH Message Part Code Allocation 4.3.4.3 PCPCH Message Part Code Allocation 4.3.5 Uplink Scrambling Codes 4.3.5.1 Long Scrambling Sequence 4.3.5.2 Short Scrambling Sequence 4.3.5.3 Scrambling Codes in Uplink Dedicated Physical Channels 4.3.5.4 PRACH and PCPCH Message Part Scrambling Code 4.3.5.5 Scrambling Code in the PCPCH Power Control Preamble 4.3.5.6 PRACH Preamble Codes 4.3.5.7 PCPCH Preamble Codes 4.3.6 Uplink Power Control Procedure 4.3.6.1 PRACH and DPCCH/DPDCH Power Control 4.3.6.2 Compressed Mode Power Control 4.3.6.3 DPCCH Power Control Preamble 4.3.6.4 Power Control in the PCPCH Message Part and Preamble 4.3.6.5 Power Control in the Power Control Preamble Part 4.3.7 Downlink Physical Channels 4.3.7.1 Downlink Transmit Diversity 4.3.7.2 Open Loop Transmit Diversity 4.3.7.3 Closed Loop Transmit Diversity 4.3.8 Dedicated Downlink Physical Channels 4.3.8.1 The Compressed Mode 4.3.8.2 Multi-Code Transmission 4.3.8.3 STTD in the DPCH 4.3.8.4 Closed Loop Mode Transmit Diversity and Dedicated Channel Pilots 4.3.8.5 The Downlink DPCCH for CPCH 4.3.9 Common Downlink Physical Channels 4.3.9.1 Common Pilot Channel (CPICH) 4.3.9.2 Primary Common Control Physical Channel (P-CCPCH) 4.3.9.3 Secondary Common Control Physical Channel (S-CCPCH) 4.3.9.4 Synchronization Channel (SCH) 4.3.9.5 Physical Downlink Shared Channel (PDSCH) 4.3.9.6 Acquisition Indicator Channel (AICH) Contents 4.3.9.7 CPCH Access Preamble Acquisition Indicator Channel (AP-AICH). 4.3.9.8 CPCH Collision Detection/Channel Assignment Indicator Channel 4.3.9.9 Paging Indicator Channel (PICH) 4.3.9.10 CPCH Status Indicator Channel (CSICH) 4.3.10 Mapping Transport Channels onto Physical Channels 4.