Method and device for measurement in wireless communication system
The disclosure relates to a method and apparatus for performing cell measurement for mobility of a user equipment (UE) in a wireless communication system, and a communication method of the UE according to an embodiment of the disclosure may include: receiving, from a base station (BS), a system information block (SIB) including first signal/physical broadcast channel (SS/PBCH) block measurement time configuration (SMTC) information and second SMTC information; determining a measurement start time based on timing offset and duration included in the first SMTC information; determining a measurement occasion based on first periodicity included in the first SMTC information and second periodicity included in the second SMTC information; and performing measurement according to the measurement start time and the measurement occasion, based on the second SMTC information.
1. A method performed by a terminal, the method comprising:
receiving a system information block (SIB) from a base station;
in case that the received SIB is a SIB4, obtaining, from the SIB4, first synchronization signal/physical broadcast channel block measurement timing configuration (SMTC) information for a frequency different from a serving cell frequency, wherein the first SMTC information includes a parameter indicating a first periodicity;
in case that second SMTC information for the frequency is included in the SIB4, identifying time configuration for a synchronization signal/physical broadcast channel (SS/PBCH) block measurement, based on a second periodicity identified from the second SMTC information and a timing offset and a duration identified from the first SMTC information for the frequency; and
performing the SS/PBCH block measurement for an inter-frequency cell indicated by a physical cell ID (PCI) list included in the second SMTC information, based on the identified time configuration,
wherein the PCI list indicates the inter-frequency cell with the second periodicity longer than the first periodicity.
2. The method of claim 1 , wherein a parameter indicating the second periodicity is configured to have a value larger than a value of the parameter indicating the first periodicity.
3. The method of claim 1 , wherein in case that the received SIB is a SIB2, second SMTC information for a frequency same with the serving cell frequency includes a PCI list regarding an intra-frequency cell, and
the method further comprising:
performing a SS/PBCH block measurement for the intra-frequency cell.
4. A method performed by a base station, the method comprising:
transmitting, to a terminal, a system information block 4 (SIB4) including first synchronization signal/physical broadcast channel block measurement timing configuration (SMTC) information and second SMTC information for a frequency different from a serving cell frequency,
wherein the first SMTC information includes a parameter indicating a first periodicity,
wherein time configuration for a synchronization signal/physical broadcast channel (SS/PBCH) block measurement is identified at the terminal based on a second periodicity identified from the second SMTC information and a timing offset and a duration identified from the first SMTC information,
wherein the SS/PBCH block measurement for an inter-frequency cell indicated by a physical cell ID (PCI) list included in the second SMTC information is performed at the terminal, based on the identified time configuration, and
wherein the PCI list indicates the inter-frequency cell with the second periodicity longer than the first periodicity.
5. The method of claim 4 , wherein in case that the SIB is a SIB2 is transmitted to the terminal, second SMTC information for a frequency same with the serving cell frequency includes a PCI list regarding an intra-frequency cell, and
a SS/PBCH block measurement for the intra-frequency cell is performed at the terminal.
6. A terminal comprising:
a transceiver; and
a processor coupled with the transceiver and configured to:
receive a system information block (SIB) from a base station,
in case that the received SIB is a SIB4, obtain, from the SIB4, first synchronization signal/physical broadcast channel block measurement timing configuration (SMTC) information for a frequency different from a serving cell frequency, wherein the first SMTC information includes a parameter indicating a first periodicity,
in case that second SMTC information for the frequency is included in the SIB4, identify time configuration for a synchronization signal/physical broadcast channel (SS/PBCH) block measurement, based on a second periodicity identified from the second SMTC information and a timing offset and a duration identified from the first SMTC information for the frequency, and
perform the SS/PBCH block measurement for an inter-frequency cell indicated by a physical cell ID (PCI) list included in the second SMTC information, based on the identified time configuration,
wherein the PCI list indicates the inter-frequency cell with the second periodicity longer than the first periodicity.
7. The terminal of claim 6 , wherein a parameter indicating the second periodicity is configured to have a value larger than a value of the parameter indicating the first periodicity.
8. The terminal of claim 6 , wherein in case that the received SIB is a SIB2, second SMTC information for a frequency same with the serving cell frequency includes a PCI list regarding an intra-frequency cells, and
the processor is configured to perform a SS/PBCH block measurement for the intra-frequency cell.
9. A base station comprising:
a transceiver; and
a processor coupled with the transceiver and configured to:
transmit to a terminal, a system information block 4 (SIB4) including first synchronization signal/physical broadcast channel block measurement timing configuration (SMTC) information and second SMTC information for a frequency different from a serving cell frequency,
wherein the first SMTC information includes a parameter indicating a first periodicity,
wherein time configuration for a synchronization signal/physical broadcast channel (SS/PBCH) block measurement is identified at the terminal, based on a second periodicity identified from the second SMTC information and a timing offset and a duration identified from the first SMTC information,
wherein the SS/PBCH block measurement for an inter-frequency cell indicated by a physical cell ID (PCI) list included in the second SMTC information is performed at the terminal, based on the identified time configuration, and
wherein the PCI list indicates the inter-frequency cell with the second periodicity longer than the first periodicity.
10. The base station of claim 9 , wherein a parameter indicating the second periodicity is configured to have a value larger than a value of the parameter indicating the first periodicity.
11. The base station of claim 9 , wherein in case that a SIB2 is transmitted to the terminal, second SMTC information for a frequency same with the serving cell frequency includes a PCI list regarding an intra-frequency cell, and
a SS/PBCH block measurement for the intra-frequency cell is performed at the terminal.