Question: How does the TX Radio Subsystem handle RATSCCH during regular speech transmission for TCH/AHS in terms of speech frame replacement?
Option 1: No speech frames are replaced; RATSCCH is appended to the end of the speech burst.
Option 2: One speech frame is replaced with RATSCCH_MARKER and another with RATSCCH_DATA.
Option 3: Two consecutive speech frames are merged and partially replaced with a single RATSCCH frame.
Option 4: The entire speech burst is paused to transmit a standalone RATSCCH frame.
Explanation: During regular speech transmission for TCH/AHS, the TX Radio Subsystem's handling of RATSCCH involves replacing two speech frames with specific RATSCCH formats: one frame is replaced with RATSCCH_MARKER and another with RATSCCH_DATA. This approach ensures efficient signaling while maintaining speech integrity, highlighting the subsystem's adaptive management of radio resources during active speech sessions.