A method of transmitting, by a communication unit, channel allocation information for Vehicle-to-Everything, V2X, communications in a wireless communication system, the method comprising: determining a first channel, among a plurality of channels, that is utilized for V2X communications, the first channel being defined by a first range of frequencies; determining state information that comprises first state information regarding signal interference in the first channel; determining whether the state information satisfies at least one criteria; based on a determination that the state information satisfies the at least one criteria: determining a second channel, among the plurality of channels, through which channel-reassignment information is transmittable, the second channel being defined by a second range of frequencies; determining a third range of frequencies, to which the V2X communications of the first channel are re-assigned; segmenting the first channel into at least two channel segments; and determining a first channel segment, among the at least two channel segments, that defines the third range of frequencies to which the V2X communications of the first channel are re-assigned; and transmitting, by the communication unit through the second channel to at least one vehicle, the channel-reassignment information regarding a change in channel assignment for the V2X communications from the first channel to the third range of frequencies, wherein the third range of frequencies is a subset of the first range of frequencies of the first channel. determining a first channel, among a plurality of channels, that is utilized for V2X communications, the first channel being defined by a first range of frequencies; determining state information that comprises first state information regarding signal interference in the first channel; determining whether the state information satisfies at least one criteria; based on a determination that the state information satisfies the at least one criteria: determining a second channel, among the plurality of channels, through which channel-reassignment information is transmittable, the second channel being defined by a second range of frequencies; determining a third range of frequencies, to which the V2X communications of the first channel are re-assigned; segmenting the first channel into at least two channel segments; and determining a first channel segment, among the at least two channel segments, that defines the third range of frequencies to which the V2X communications of the first channel are re-assigned; and transmitting, by the communication unit through the second channel to at least one vehicle, the channel-reassignment information regarding a change in channel assignment for the V2X communications from the first channel to the third range of frequencies, wherein the third range of frequencies is a subset of the first range of frequencies of the first channel. determining a second channel, among the plurality of channels, through which channel-reassignment information is transmittable, the second channel being defined by a second range of frequencies; determining a third range of frequencies, to which the V2X communications of the first channel are re-assigned; segmenting the first channel into at least two channel segments; and determining a first channel segment, among the at least two channel segments, that defines the third range of frequencies to which the V2X communications of the first channel are re-assigned; and transmitting, by the communication unit through the second channel to at least one vehicle, the channel-reassignment information regarding a change in channel assignment for the V2X communications from the first channel to the third range of frequencies, wherein the third range of frequencies is a subset of the first range of frequencies of the first channel.