Question: What action should the UE take when it receives an LTM CSI resource configuration release message with an ltm-CSI-ResourceConfigId value that has a matching entry in VarLTM-Config?
Option 1: The UE shall add a new entry to VarLTM-Config for the released LTM-CSI-ResourceConfig.
Option 2: The UE shall ignore the release message and keep the existing entry in VarLTM-Config.
Option 3: The UE shall update the existing entry in VarLTM-Config with new configuration parameters.
Option 4: The UE shall remove the entry related to the LTM-CSI-ResourceConfig from VarLTM-Config.
Explanation: According to the 3GPP specification, when the UE receives an LTM CSI resource configuration release message, it should remove the corresponding entry from VarLTM-Config if a matching entry exists. This ensures that the UE's configuration is updated correctly and consistently with the network's instructions.