Question: What is used to initialize the scrambling sequence generator for an SPDCCH in a subframe?
Option 1: Cell ID
Option 2: UE ID
Option 3: Frame Number
Option 4: SPDCCH Resource Set Number
Explanation: The scrambling sequence generator is initialized with the SPDCCH resource set number, which ensures that the scrambled bits are unique for each resource set and helps to prevent interference between different UEs.