Question: In NR (New Radio) as per 3GPP specifications, what is the primary purpose of attaching Cyclic Redundancy Check (CRC) parity bits to BCH (Broadcast Channel) transport blocks?
Option 1: To enhance encryption for secure data transmission
Option 2: To facilitate faster decoding at the receiver end
Option 3: To increase the payload size for more data transmission
Option 4: To provide error detection capabilities for the transport block
Explanation: The attachment of CRC parity bits to BCH transport blocks is primarily for error detection. This mechanism allows the receiver to identify if errors have occurred during the transmission of the transport block, ensuring data integrity. This is a critical aspect of reliable communication in wireless networks like NR.