A method for signaling radio access network, RAN, profile index, the method comprising: transmitting, by a first cell operating on a first component carrier, a first RAN profile indexing message to a user equipment, UE,, the first RAN profile indexing message comprising a first plurality of Bandwidth Part, BWP, indices corresponding to a first plurality of BWP configurations; transmitting, by the first cell on a first Resource Block, RB, of a default BWP of the first component carrier, a first BWP index that corresponds to a first BWP configuration of the first plurality of BWP configurations; transmitting, by the first cell on the first RB as part of a first downlink control information, DCI, message, a BWP indicator field, BIF, to indicate the first BWP configuration; transmitting, by the first cell, a second plurality of DCI messages, wherein the second plurality of DCI messages is encoded based on a Control-Resource Set, CORESET, configuration of the first BWP configuration; wherein at least one of the first plurality of BWP configurations includes: a BWP index associated with the corresponding BWP configuration; a frequency location of the corresponding BWP configuration; a bandwidth in frequency domain; a transmission type; and one or more periodic resource allocations associated with the transmission type; wherein the first plurality of BWP configurations configured at least a first BWP and a second BWP in the first component carrier in a frequency domain; wherein the first RAN profile indexing message is contained in at least one radio resource control, RRC, message or in a portion of system information, SI; wherein the first BWP comprises a first set of RBs within a first frequency range of the first component carrier and the second BWP comprises a second set of RBs within a second frequency range of the first component carrier; wherein the first BWP and the second BWP have different configurations in numerology, which includes a cyclic prefix and a subcarrier spacing configuration; and wherein the first frequency range and the second frequency range are one of i) at least partially overlapped in frequency domain and ii) not overlapped in the frequency domain. transmitting, by a first cell operating on a first component carrier, a first RAN profile indexing message to a user equipment, UE,, the first RAN profile indexing message comprising a first plurality of Bandwidth Part, BWP, indices corresponding to a first plurality of BWP configurations; transmitting, by the first cell on a first Resource Block, RB, of a default BWP of the first component carrier, a first BWP index that corresponds to a first BWP configuration of the first plurality of BWP configurations; transmitting, by the first cell on the first RB as part of a first downlink control information, DCI, message, a BWP indicator field, BIF, to indicate the first BWP configuration; transmitting, by the first cell, a second plurality of DCI messages, wherein the second plurality of DCI messages is encoded based on a Control-Resource Set, CORESET, configuration of the first BWP configuration; wherein at least one of the first plurality of BWP configurations includes: a BWP index associated with the corresponding BWP configuration; a frequency location of the corresponding BWP configuration; a bandwidth in frequency domain; a transmission type; and one or more periodic resource allocations associated with the transmission type; a BWP index associated with the corresponding BWP configuration; a frequency location of the corresponding BWP configuration; a bandwidth in frequency domain; a transmission type; and one or more periodic resource allocations associated with the transmission type; wherein the first plurality of BWP configurations configured at least a first BWP and a second BWP in the first component carrier in a frequency domain; wherein the first RAN profile indexing message is contained in at least one radio resource control, RRC, message or in a portion of system information, SI; wherein the first BWP comprises a first set of RBs within a first frequency range of the first component carrier and the second BWP comprises a second set of RBs within a second frequency range of the first component carrier; wherein the first BWP and the second BWP have different configurations in numerology, which includes a cyclic prefix and a subcarrier spacing configuration; and wherein the first frequency range and the second frequency range are one of i) at least partially overlapped in frequency domain and ii) not overlapped in the frequency domain.