Method and apparatus of paging transmission and reception, system information window determination and uplink carrier selection

A method performed by a base station in a wireless communication system, the method comprising:

• transmitting, to a terminal, a system information block (SIB) including at least one parameter for a paging;
• and
• transmitting, to the terminal on a downlink bandwidth part (BWP), a paging message based on a physical downlink control channel (PDCCH) addressed to a paging radio network temporary identifier (P-RNTI),
• wherein the paging message is transmitted in a paging occasion (PO) of a paging frame (PF) based on the at least one parameter, and a monitoring of the PO starts from a first PDCCH monitoring occasion indicated by information transmitted to the terminal for the downlink BWP.

A terminal in a wireless communication system, the terminal comprising:

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to:
• receive, from a base station, a system information block (SIB) including at least one parameter for a paging,
• identify information indicating a first physical downlink control channel (PDCCH) monitoring occasion of a paging occasion (PO) of a paging frame (PF) for a downlink bandwidth part (BWP), and
• receive, from the base station on the downlink BWP, a paging message based on a PDCCH addressed to a paging radio network temporary identifier (P-RNTI) by monitoring the PO of the PF based on the at least one parameter,
• wherein the monitoring starts from the first PDCCH monitoring occasion indicated by the information on the PO.

A base station in a wireless communication system, the base station comprising:

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to:
• transmit, to a terminal, a system information block (SIB) including at least one parameter for a paging, and
• transmit, to the terminal on a downlink bandwidth part (BWP), a paging message based on a physical downlink control channel (PDCCH) addressed to a paging radio network temporary identifier (P-RNTI),
• wherein the paging message is transmitted in a paging occasion (PO) of a paging frame (PF) based on the at least one parameter, and a monitoring of the PO starts from a first PDCCH monitoring occasion indicated by information transmitted to the terminal for the downlink BWP.