Question: What determines if sequence hopping is enabled or not for a UE in a cell?
Option 1: The length of the reference signal
Option 2: The pseudo-random sequence generator initialization value
Option 3: The number of resource blocks (RBs) allocated for PUSCH transmission
Option 4: The parameter Sequence-hopping-enabled provided by higher layers
Explanation: The correct answer is the parameter Sequence-hopping-enabled, which is provided by higher layers and determines if sequence hopping is enabled or not. This highlights the importance of higher-layer signaling in controlling physical layer procedures like sequence hopping.