Question: In a UTRAN TDD cell with Transmit Diversity applied to the Primary Common Control Physical Channel (PCCPCH), how is the Primary PCCPCH power calculated?
Option 1: The Primary PCCPCH power is the linear sum of the power used on all branches, measured at the antenna connector.
Option 2: The Primary PCCPCH power is the maximum power used on any single branch, with measurement taken at the base station's output.
Option 3: The Primary PCCPCH power remains constant regardless of the number of branches used for Transmit Diversity.
Option 4: The Primary PCCPCH power is calculated as the average power across all branches, referenced to the cell's geographic center.
Explanation: When Transmit Diversity is applied to the Primary PCCPCH in a TDD cell, the total power output is considered for interference and coverage calculations. Thus, the correct method to calculate the Primary PCCPCH power in this scenario is by summing the power used across all branches, with the measurement reference point being the antenna connector, as this accurately reflects the total energy transmitted.