Method and apparatus for timing configuration of discovery signal and channel

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

• transmitting, to a terminal, a configuration for a discovery burst transmission window;
• and
• transmitting, based on a channel access procedure performed by the base station, to the terminal via a shared spectrum, at least one synchronization signal/physical broadcast channel (SS/PBCH) block in at least one discovery burst transmission window configured with a periodicity,
• wherein SS/PBCH blocks corresponding to a same SS/PBCH block index are quasi co-located (QCLed), and
• wherein the SS/PBCH block index is determined based on (i) an index of a demodulation reference signal (DMRS) sequence transmitted in a PBCH of a corresponding SS/PBCH block and (ii) a maximum number of transmitted SS/PBCH blocks in one discovery burst transmission window.

A terminal in a communication system, the terminal comprising:

• a controller;
• and
• a transceiver operably connected to the controller, the transceiver configured to:
• receive, from a base station, a configuration for a discovery burst transmission window;
• and
• receive, from the base station via a shared spectrum, at least one synchronization signal/physical broadcast channel (SS/PBCH) block in at least one discovery burst transmission window configured with a periodicity,
• wherein SS/PBCH blocks corresponding to a same SS/PBCH block index are quasi co-located (QCLed), and
• wherein the SS/PBCH block index is determined based on (i) an index of a demodulation reference signal (DMRS) sequence transmitted in a PBCH of a corresponding SS/PBCH block and (ii) a maximum number of transmitted SS/PBCH blocks in one discovery burst transmission window.

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

• a controller;
• and
• a transceiver operably connected to the controller, the transceiver configured to:
• transmit, to a terminal, a configuration for a discovery burst transmission window;
• and
• transmit, based on a channel access procedure performed by the base station, to the terminal via a shared spectrum, at least one synchronization signal/physical broadcast channel (SS/PBCH) block in at least one discovery burst transmission window configured with a periodicity;
• wherein SS/PBCH blocks corresponding to a same SS/PBCH block index are quasi co-located (QCLed), and
• wherein the SS/PBCH block index is determined based on (i) an index of a demodulation reference signal (DMRS) sequence transmitted in a PBCH of a corresponding SS/PBCH block and (ii) a maximum number of transmitted SS/PBCH blocks in one discovery burst transmission window.