Node B-control-proxy

A method of operating a first node in a mobile telecommunication network comprising the first node, a second node configured to execute a master-proxy-process and a third node configured to execute a slave-process, wherein execution of the master-process and the slave-process realizes a system function associated with a mobility of the third node, and wherein the execution of the master-process realizes a control function associated with the system function, wherein the control function relates to management of an active set for the third node, the method comprising:

• while the master-process of the first node has responsibility for managing the active set, issuing commands related to managing the active set from the first node to the third node through the second node;
• temporarily delegating the responsibility for managing the active set to a master-proxy-process implemented in the second node;
• and
• receiving heartbeat messages from the master-proxy-process while the master-proxy-process has the responsibility for managing the active set in order to get information that the master-proxy-process is functioning.

A method of operating a second node in a mobile telecommunication network comprising the second node, a first node configured to execute a master-process, and a third node configured to execute a slave-process, wherein execution of the master-process and the slave-process realizes a system function associated with a mobility of the third node, and wherein the execution of the master-process realizes a control function associated with the system function, wherein the control function relates to management of an active set for the third node, the method comprising:

• while the master-process of the first node has responsibility for managing the active set, deriving soft-state information associated with the system function at the second node based on communication between the first node and the third node that passes through the second node;
• when the master-process of the first node delegates the responsibility for managing the active set to a master-proxy-process implemented in the second node, managing the active set by autonomously issuing new commands to the third node based on the derived soft-state information;
• and
• sending heartbeat messages to the master-process while the master-proxy-process has the responsibility for managing the active set in order to indicate that the master-proxy-process is functioning.