Method and apparatus for handling minimum system information in a wireless communication system

A method performed by a master node (MN) for handling minimum system information MSI (904a) in a wireless communication system, comprising:

• receiving a measurement report from a UE (111) for adding at least one candidate cell in a next generation telecommunication network;
• sending a candidate cell addition request message to a network apparatus (113) in the next generation telecommunication network;
• receiving a candidate cell addition response message from the network apparatus (113) after addition of the at least one candidate cell in the next generation telecommunication network, while the network apparatus (113) continues to broadcast the PBCH (103g) block combining the MSI (904a) to the UE (111), wherein the MSI (904a) comprises a Master Information Block (MIB) and a System Information Block (SIB), wherein the SIB comprises at least one of at least one cell selection parameter of the at least one candidate cell, at least one cell access related parameter of the at least one candidate cell, a value tag indicating whether the MSI is valid or a change has occurred, and at least one RACH parameter of the at least one candidate cell;
• sending a Radio Resource Control (RRC) configuration request message to the UE (111), wherein the RRC configuration request message comprises the information of the candidate cell added into the next generation telecommunication network;
• and
• receiving a RRC configuration complete message from the UE (111) in the next generation telecommunication network after completion of cell selection by the UE (111).

A UE (111) for handling system information in a wireless communication system, comprising:

• a memory (205);
• a processor (203);
• and
• a system information controller (209), communicable coupled to the memory (205) and the processor (203), configured to:
• tune a frequency to perform cell selection in a next generation telecommunication network;
• receive a Physical Broadcast Channel (PBCH) block on the tuned frequency, wherein the PBCH (103g) block is broadcasted from a network apparatus (113) in the next generation telecommunication network;
• decode the PBCH (103g) block to obtain the MSI (904a), wherein the MSI (904a) comprises a Master Information Block (MIB) and a System Information Block (SIB), wherein the SIB comprises at least one of at least one cell selection parameter, at least one cell access related parameter, a value tag indicating whether the MSI is valid or a change has occurred, and at least one RACH parameter;
• perform the cell selection on the tuned frequency to select at least one candidate cell based on the at least one cell selection parameter, at least one cell access related parameter, the value tag and the at least one RACH parameter.

A Master Node (MN) (112) for handling system information in a wireless communication system, comprising:

• a memory (304);
• a processor (301);
• and
• a system information controller (306), communicable coupled to the memory (304) and the processor (301), configured to:
• receive a measurement report from a UE (111) for adding at least one candidate cell in a next generation telecommunication network;
• send a candidate cell addition request message to a network apparatus (113) in the next generation telecommunication network;
• receive a candidate cell addition response message from the network apparatus (113) after addition of the at least one candidate cell in the next generation telecommunication network, while the network apparatus (113) continues to broadcast the PBCH (103g) block combining the MSI (904a) to the UE (111), wherein the MSI (904a) comprises a Master Information Block (MIB) and a System Information Block (SIB), wherein the SIB comprises at least one of at least one cell selection parameter of the at least one candidate cell, at least one cell access related parameter of the at least one candidate cell, a value tag indicating whether the MSI is valid or a change has occurred, and at least one RACH parameter of the at least one candidate cell;
• send a Radio Resource Control (RRC) configuration request message to the UE (111), wherein the RRC configuration request message comprises the information of the candidate cell added into the next generation telecommunication network;
• and
• receive a RRC configuration complete message from the UE (111) in the next generation telecommunication network after completion of cell selection by the UE (111).