A method, performed by a base station (170a, 170b) being a transmit-receive point, TRP, in a communication network, the method comprising: sending a first uplink, UL, control channel assignment to a first user equipment (110a, 110b, 110c), UE, wherein the first UL control channel assignment indicates a first transmission resource in a first symbol of an uplink control channel, and wherein the uplink control channel comprises at least the first symbol and a second symbol; receiving, from the first user equipment (110a, 110b, 110c), UE, data using the first transmission resource in the first symbol of the uplink, UL, control channel; sending a second uplink, UL, control channel assignment to a second UE (110a, 110b, 110c), wherein the second UL control channel assignment indicates a second transmission resource in the second symbol of the uplink control channel; and receiving, from the second UE (110a, 110b, 110c), UL control information using the second transmission resource in the second symbol of the uplink control channel; wherein the first symbol and the second symbol have different numerologies at a same sub-band of the UL control channel, wherein the same sub-band is divided, by the base station (170a, 170b), into at least a first partial sub-band and a second partial sub-band, wherein the first and second symbols in the same sub-band are split into smaller symbols in their first and second partial sub-bands based on frequency-division multiplexing, FDM, or based on time-division multiplexing, TDM, and wherein each of the first partial sub-band and the second partial sub-band includes a first group of the smaller symbols for data transmission and a second group of the smaller symbols for control message transmission. sending a first uplink, UL, control channel assignment to a first user equipment (110a, 110b, 110c), UE, wherein the first UL control channel assignment indicates a first transmission resource in a first symbol of an uplink control channel, and wherein the uplink control channel comprises at least the first symbol and a second symbol; receiving, from the first user equipment (110a, 110b, 110c), UE, data using the first transmission resource in the first symbol of the uplink, UL, control channel; sending a second uplink, UL, control channel assignment to a second UE (110a, 110b, 110c), wherein the second UL control channel assignment indicates a second transmission resource in the second symbol of the uplink control channel; and receiving, from the second UE (110a, 110b, 110c), UL control information using the second transmission resource in the second symbol of the uplink control channel; wherein the first symbol and the second symbol have different numerologies at a same sub-band of the UL control channel, wherein the same sub-band is divided, by the base station (170a, 170b), into at least a first partial sub-band and a second partial sub-band, wherein the first and second symbols in the same sub-band are split into smaller symbols in their first and second partial sub-bands based on frequency-division multiplexing, FDM, or based on time-division multiplexing, TDM, and wherein each of the first partial sub-band and the second partial sub-band includes a first group of the smaller symbols for data transmission and a second group of the smaller symbols for control message transmission.