Method and device for uplink transmission and reception in wireless communication system

1 . A method comprising:

receiving, by a terminal from a network, configuration information related to at least one timing advance (TA) parameter; and

calculating, by the terminal, a TA based at least on at least one common TA parameter of at least one configured TA parameter; and

performing, by the terminal, an uplink transmission based on the TA,

wherein a second common TA parameter of a second order is used for calculating the TA based on a first common TA parameter of a first order being used for calculating the TA, and the first order is lower than the second order,

wherein a first transmission period of the first common TA parameter is longer than a second transmission period of the second common TA parameter.

2 . The method according to claim 1 , wherein:

a third common TA parameter of a third order is used for calculating the TA based on the first common TA parameter and the second common TA parameter being used for calculating the TA, and the third order is higher than the second order.

3 . The method according to claim 2 , wherein the at least one common TA parameter is provided from the network as one set of:

a first set of the first common TA parameter,

a second set of the first common TA parameter and the second common TA parameter, or

a third set of the first common TA parameter, the second common TA parameter and the third common TA parameter.

4 . The method according to claim 2 , wherein the at least one common TA parameter includes that:

a default value is applied to the second common TA parameter based on the first common TA parameter being provided and the second common TA parameter being not provided for the terminal;

the default value is applied to each of the second common TA parameter and the third common TA parameter based on the first common TA parameter being provided and the second common TA parameter and the third common TA parameter being not provided for the terminal; or

the default value is applied to the third common TA parameter based on the first common TA parameter and the second common TA parameter being provided and the third common TA parameter being not provided for the terminal.

5 . The method according to claim 2 , wherein the at least one common TA parameter includes that:

at least one of the second common TA parameter or the third common TA parameter has a non-zero value based on the first common TA parameter having the non-zero value; or

the third common TA parameter has the non-zero value based on each of the first common TA parameter and the second common TA parameter having the non-zero value.

6 . The method according to claim 2 , wherein:

the first common TA parameter is a common TA parameter or a common delay parameter,

the second common TA parameter is a common TA drift parameter or a common delay drift parameter,

the third common TA parameter is a common TA drift variation or a common delay drift variation.

7 . The method according to claim 2 , wherein:

the second transmission period of the second common TA parameter is longer than a third transmission period of the third common TA parameter.

8 . The method according to claim 1 , wherein:

the TA includes a common TA,

the common TA is calculated based on at least one common TA parameter.

9 . The method according to claim 1 , wherein:

the TA includes a first TA (N TA ) related to a TA command, a second TA (N TA,common ) related to a common TA, and a third TA (N TA,UE-specific ) related to a UE-specific TA parameter.

10 . The method according to claim 9 , wherein:

at least one of the first TA, the second TA, or the third TA is determined based on subcarrier spacing of a changed active uplink BWP based on the active uplink bandwidth (BWP) being changed between a time of at least one of reception of the TA command, reception of the common TA parameter or acquisition of the UE-specific TA parameter and the time when the calculated TA is applied to an uplink transmission timing.

11 . The method according to claim 9 , wherein:

based on an active uplink BWP being changed after a time when the calculated TA is applied to an uplink transmission timing, at least one of the first TA of a same absolute value, the second TA of the same absolute value or the third TA of the same absolute value is applied before and after the active uplink BWP is changed.

12 . The method according to claim 1 , wherein:

the method is performed in a non-terrestrial network (NTN) system.

13 . A terminal comprising:

at least one transceiver; and

at least one processor connected to the at least one transceiver,

wherein the at least one processor is configured to:

receive configuration information related to at least one timing advance (TA) parameter from a network through the at least one transceiver;

calculate a TA based at least on at least one common TA parameter of the at least one configured TA parameter; and

perform an uplink transmission based on the TA through the at least one transceiver,

wherein a second common TA parameter of a second order is used for calculating the TA based on a first common TA parameter of a first order being used for calculating the TA, and the first order is lower than the second order,

wherein a first transmission period of the first common TA parameter is longer than a second transmission period of the second common TA parameter.

14 . A base station comprising:

at least one transceiver; and

at least one processor connected to the at least one transceiver,

wherein the at least one processor is configured to:

transmit configuration information related to at least one timing advance (TA) parameter to at least one terminal through the at least one transceiver; and

receive through the at least one transceiver from each terminal uplink transmission to which a TA calculated based at least on at least one common TA parameter of at least one configured TA parameter is applied,

wherein a second common TA parameter of a second order is used for calculating the TA based on a first common TA parameter of a first order being used for calculating the TA, and the first order is lower than the second order,

wherein a first transmission period of the first common TA parameter is longer than a second transmission period of the second common TA parameter.