Question: For a User Equipment (UE) that supports both UTRA TDD and UTRA FDD, what is the basis for defining the absolute accuracy of CPICH RSCP in a conformance test?
Option 1: Comparison of CPICH RSCP measured in a UTRA TDD cell to its actual power on a different frequency.
Option 2: Evaluation of CPICH RSCP in an UTRA FDD cell against its theoretical value on a separate network.
Option 3: Measurement of CPICH RSCP in an UTRA FDD cell compared to its actual CPICH RSCP power on the same frequency.
Option 4: Analysis of CPICH RSCP variations between UTRA TDD and UTRA FDD modes on adjacent frequencies.
Explanation: The correct answer, Option 3, specifies that the absolute accuracy of CPICH RSCP is determined by comparing the measured CPICH RSCP in an UTRA FDD cell to its actual transmitted power on the same frequency. This method ensures a direct and accurate assessment of the UE's ability to measure signal strength correctly, crucial for handovers, cell selection, and overall network performance.