Method and apparatus for transmitting and receiving control information based on cell switching in wireless communication system
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system is provided. The method includes transmitting, to a base station, capability information of the terminal; receiving, from the base station, configuration information related to physical uplink control channel (PUCCH) cell switching according to the capability information; and transmitting, to the base station, a PUCCH on one of a plurality of serving cells for the PUCCH cell switching based on the configuration information. The plurality of serving cells for the PUCCH cell switching are in a same timing advance group (TAG).
1 . A method performed by a terminal in a wireless communication system, the method comprising:
transmitting, to a base station, capability information of the terminal;
receiving, from the base station, configuration information related to physical uplink control channel (PUCCH) cell switching according to the capability information;
identifying whether a time difference between a last symbol of a first PUCCH and a first symbol of a second PUCCH for the PUCCH cell switching is greater than or equal to a threshold for preventing simultaneous transmission of the first PUCCH and the second PUCCH;
in case that the time difference is greater than or equal to the threshold, transmitting, to the base station, the first PUCCH on a first cell and the second PUCCH on a second cell for the PUCCH cell switching, based on the configuration information; and
in case that the time difference is less than the threshold, dropping one of the first PUCCH or the second PUCCH, based on at least one of priority information or information on a transmission time at which the first PUCCH and the second PUCCH are scheduled.
2 . The method of claim 1 , wherein the configuration information includes information on a periodic pattern for the PUCCH cell switching.
3 . The method of claim 2 , wherein each bit of the information on the periodic pattern for the PUCCH cell switching corresponds to a slot with value of 0 or value of 1 respectively indicating the first cell or the second cell for the PUCCH cell switching.
4 . The method of claim 1 , wherein the configuration information includes information indicating that the PUCCH cell switching is based on a dynamic indication in downlink control information (DCI).
5 . The method of claim 4 , wherein transmitting the second PUCCH comprises:
receiving, from the base station, the DCI indicating the second cell for the PUCCH cell switching; and
transmitting, to the base station, the second PUCCH on the second cell for the PUCCH cell switching indicated by the DCI.
6 . A method performed by a base station in a wireless communication system, the method comprising:
receiving, from a terminal, capability information of the terminal;
transmitting, to the terminal, configuration information related to physical uplink control channel (PUCCH) cell switching based on the capability information; and
in case that a time difference between a last symbol of a first PUCCH and a first symbol of a second PUCCH for the PUCCH cell switching is greater than or equal to a threshold, receiving, from the terminal, the first PUCCH on a first cell and the second PUCCH on a second cell for the PUCCH cell switching, according to the configuration information,
wherein, in case that the time difference is less than the threshold, one of the first PUCCH or the second PUCCH is dropped based on at least one of priority information or information on a transmission time at which the first PUCCH and the second PUCCH are scheduled.
7 . The method of claim 6 , wherein the configuration information includes information on a periodic pattern for the PUCCH cell switching.
8 . The method of claim 7 , wherein each bit of the information on the periodic pattern for the PUCCH cell switching corresponds to a slot with value of 0 or value of 1 respectively indicating the first cell or the second cell for the PUCCH cell switching.
9 . The method of claim 6 , wherein the configuration information includes information indicating that the PUCCH cell switching is based on a dynamic indication in downlink control information (DCI).
10 . The method of claim 9 , wherein receiving the second PUCCH comprises:
transmitting, to the terminal, the DCI indicating the second cell for the PUCCH cell switching; and
receiving, from the terminal, the second PUCCH on the second sell for the PUCCH cell switching indicated by the DCI.
11 . A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a controller configured to:
transmit, to a base station via the transceiver, capability information of the terminal,
receive, from the base station via the transceiver, configuration information related to physical uplink control channel (PUCCH) cell switching according to the capability information,
identify whether a time difference between a last symbol of a first PUCCH and a first symbol of a second PUCCH for the PUCCH cell switching is greater than or equal to a threshold for preventing simultaneous transmission of the first PUCCH and the second PUCCH,
in case that the time difference is greater than or equal to the threshold, transmit, to the base station via the transceiver, the first PUCCH on a first cell and the second PUCCH on a second cell for the PUCCH cell switching, based on the configuration information, and
in case that the time difference is less than the threshold, drop one of the first PUCCH or the second PUCCH, based on at least one of priority information or information on a transmission time at which the first PUCCH and the second PUCCH are scheduled.
12 . The terminal of claim 11 , wherein the configuration information includes information on a periodic pattern for the PUCCH cell switching.
13 . The terminal of claim 12 , wherein each bit of the information on the periodic pattern for the PUCCH cell switching corresponds to a slot with value of 0 or value of 1 respectively indicating the first cell or the second cell for the PUCCH cell switching.
14 . The terminal of claim 11 , wherein the configuration information includes information indicating that the PUCCH cell switching is based on a dynamic indication in downlink control information (DCI).
15 . The terminal of claim 14 , wherein, in transmitting the second PUCCH, the controller is further configured to:
receive, from the base station via the transceiver, the DCI indicating the second cell for the PUCCH cell switching, and
transmit, to the base station via the transceiver, the second PUCCH on the second cell for the PUCCH cell switching indicated by the DCI.
16 . A base station in a wireless communication system, the base station comprising:
a transceiver; and
a controller configured to:
receive, from a terminal via the transceiver, capability information of the terminal,
transmit, to the terminal via the transceiver, configuration information related to physical uplink control channel (PUCCH) cell switching based on the capability information, and
in case that a time difference between a last symbol of a first PUCCH and a first symbol of a second PUCCH for the PUCCH cell switching is greater than or equal to a threshold, receive, from the terminal via the transceiver, the first PUCCH on a first cell and the second PUCCH on a second cell for the PUCCH cell switching, according to the configuration information,
wherein, in case that the time difference is less than the threshold, one of the first PUCCH or the second PUCCH is dropped based on at least one of priority information or information on a transmission time at which the first PUCCH and the second PUCCH are scheduled.
17 . The base station of claim 16 , wherein the configuration information includes information on a periodic pattern for the PUCCH cell switching.
18 . The base station of claim 17 , wherein each bit of the information on the periodic pattern for the PUCCH cell switching corresponds to a slot with value of 0 or value of 1 respectively indicating the first cell or the second cell for the PUCCH cell switching.
19 . The base station of claim 16 , wherein the configuration information includes information indicating that the PUCCH cell switching is based on a dynamic indication in downlink control information (DCI).
20 . The base station of claim 19 , wherein, in receiving the second PUCCH, the controller is further configured to:
transmit, to the terminal via the transceiver, the DCI indicating the second cell for the PUCCH cell switching, and
receive, from the terminal via the transceiver, the PUCCH on the second cell for the PUCCH cell switching indicated by the DCI.