A method of wireless communication, the method comprising: Receiving, by a user equipment, a slot format information, SFI, from a base station, BS; wherein the SFI indicates at least one slot formation configuration, each of the at least one slot formation configuration comprises a first configuration associated with symbols within a first half of a slot and a second configuration associated with symbols within a second half of the slot, the first configuration indicates location of at least one uplink symbol and location of at least one downlink symbol, and the second configuration indicates location of at least one uplink symbol and location of at least one downlink symbol; and communicating, by the user equipment, a downlink data transmission or an uplink data transmission based on the slot formation configuration; wherein the first configuration comprises at least one first switching point in the first half of the slot and the second configuration comprises at least a second switching point in the second half of the slot; wherein the first configuration in the first half of the slot is the same as the second configuration in the second half of the slot; wherein each of the first switching point and the second switching point indicates switching from downlink transmission direction to uplink transmission direction; or each of the first switching point and the second switching point indicates switching from uplink transmission direction to downlink transmission direction; and wherein the at least one slot format configuration has a format from a set of formats that includes at least one of the formats of the following table: format symbol 0 symbol 1 symbol 2 symbol 3 symbol 4 symbol 5 symbol 6 symbol 7 symbol 8 symbol 9 symbol 10 symbol 11 symbol 12 symbol 13 1 DL DL DL DL DL UKWN UL DL DL DL DL DL UKWN UL 2 DL DL DL DL UKWN UL UL DL DL DL DL UKWN UL UL 3 DL DL UKWN UL UL UL UL DL DL UKWN UL UL UL UL 4 DL UKWN UL UL UL UL UL DL UKWN UL UL UL UL UL 5 DL DL DL DL UKWN UKWN UL DL DL DL DL UKWN UKWN UL 6 DL DL UKWN UKWN UL UL UL DL DL UKWN UKWN UL UL UL 7 DL UKWN UKWN UL UL UL UL DL UKWN UKWN UL UL UL UL wherein a symbol identified as "UKWN" is capable of being overridden by a DL symbol or an UL symbol by a dynamic signaling. Receiving, by a user equipment, a slot format information, SFI, from a base station, BS; wherein the SFI indicates at least one slot formation configuration, each of the at least one slot formation configuration comprises a first configuration associated with symbols within a first half of a slot and a second configuration associated with symbols within a second half of the slot, the first configuration indicates location of at least one uplink symbol and location of at least one downlink symbol, and the second configuration indicates location of at least one uplink symbol and location of at least one downlink symbol; and communicating, by the user equipment, a downlink data transmission or an uplink data transmission based on the slot formation configuration; wherein the first configuration comprises at least one first switching point in the first half of the slot and the second configuration comprises at least a second switching point in the second half of the slot; wherein the first configuration in the first half of the slot is the same as the second configuration in the second half of the slot; wherein each of the first switching point and the second switching point indicates switching from downlink transmission direction to uplink transmission direction; or each of the first switching point and the second switching point indicates switching from uplink transmission direction to downlink transmission direction; and wherein the at least one slot format configuration has a format from a set of formats that includes at least one of the formats of the following table: format symbol 0 symbol 1 symbol 2 symbol 3 symbol 4 symbol 5 symbol 6 symbol 7 symbol 8 symbol 9 symbol 10 symbol 11 symbol 12 symbol 13 1 DL DL DL DL DL UKWN UL DL DL DL DL DL UKWN UL 2 DL DL DL DL UKWN UL UL DL DL DL DL UKWN UL UL 3 DL DL UKWN UL UL UL UL DL DL UKWN UL UL UL UL 4 DL UKWN UL UL UL UL UL DL UKWN UL UL UL UL UL 5 DL DL DL DL UKWN UKWN UL DL DL DL DL UKWN UKWN UL 6 DL DL UKWN UKWN UL UL UL DL DL UKWN UKWN UL UL UL 7 DL UKWN UKWN UL UL UL UL DL UKWN UKWN UL UL UL UL wherein a symbol identified as "UKWN" is capable of being overridden by a DL symbol or an UL symbol by a dynamic signaling.