Question: Under what condition(s) is the Relative Code Domain Error requirement NOT applicable for a code channel in a UTRA FDD UE supporting HSDPA and Dual Cell E-DCH?
Option 1: When the spreading factor of the code channel is less than 16.
Option 2: When either the Effective Code Domain Power (ECDP) of any code channel is < -30dB or the nominal code domain power of any code channel is < -30 dB.
Option 3: When the measurement interval spans more than one timeslot without expected mean power changes between slots.
Option 4: When the UE operates in Release 8 or earlier releases.
Explanation: The correct answer, Option 2, directly reflects the conditions outlined in the specification under which the Relative Code Domain Error requirement does not apply. These conditions are specifically related to the threshold values of the Effective Code Domain Power (ECDP) and the nominal code domain power, both set at -30 dB. This highlights the importance of understanding the thresholds for applicability of specific technical requirements in telecom standards, ensuring proper implementation and testing of UEs in compliance with 3GPP specifications.