Question: What is the implication for a Node B when it receives a MAC-es Guaranteed Bit Rate IE with a value set to 0 during Radio Link (RL) setup or modification?
Option 1: The Node B must allocate maximum UL resources to ensure high-priority data delivery.
Option 2: The Node B will apply a default guaranteed bit rate for the connection.
Option 3: The Node B is instructed to prioritize neighboring cell's UL resources.
Option 4: No guarantee on bit rate delivery is applied, and resource allocation is not specifically adjusted.
Explanation: According to the specification, if the MAC-es Guaranteed Bit Rate IE value is set to 0 during RL setup or modification, no guarantee on the bit rate delivery is applied. This means the Node B does not have to provide sufficient UL resources for a guaranteed bit rate, as there is no specified rate to guarantee. This setting essentially makes the bit rate delivery best-effort rather than guaranteed.