Question: How is an S-RNTI Group identified for a set of UEs (User Equipment) in the SRNC, based on the S-RNTI (Short-RNTI) values and the S-RNTI bit mask index?
Option 1: By matching all bits of the S-RNTI value with the corresponding bits of the IE (Information Element), regardless of the S-RNTI bit mask index.
Option 2: By comparing bits of the S-RNTI from the most significant down to the bit indicated by the S-RNTI bit mask index, and ignoring less significant bits.
Option 3: Through a hash function that combines all S-RNTI values with the S-RNTI bit mask index for unique group identification.
Option 4: Based solely on the least significant bits of the S-RNTI not affected by the S-RNTI bit mask index.
Explanation: The correct approach to identifying an S-RNTI Group involves comparing the more significant bits (starting from the most significant bit down to the bit indicated by the S-RNTI bit mask index) of the S-RNTI values. This method ensures that UEs are correctly grouped based on shared, significant portions of their S-RNTI, as defined by the S-RNTI bit mask index, while ignoring the less significant bits. This process is crucial for efficient management and signaling within the SRNC.