5.4.4F Carrier frequency and EARFCN for category NB1 and NB2
36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
The carrier frequency of category NB1/NB2 in the downlink is designated by the E-UTRA Absolute Radio Frequency Channel Number (EARFCN) in the range 0 – 262143 and the Offset of category NB1/NB2 Channel Number to EARFCN in the range {-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,-0.5,0,1,2,3,4,5,6,7,8,9}. for FDD and in the range {-10,-9,-8.5,-8,-7,-6,-5,-4.5,-4,-3,-2,-1,-0.5,0,1,2,3,3.5,4,5,6,7,7.5,8,9} for TDD. The relation between EARFCN, Offset of category NB1/NB2 Channel Number to EARFCN and the carrier frequency in MHz for the downlink is given by the following equation, where FDL is the downlink carrier frequency of category NB1/NB2, FDL_low and NOffs-DL are given in table 5.2-1, NDL is the downlink EARFCN, MDL is the Offset of category NB1/NB2 Channel Number to downlink EARFCN.
FDL = FDL_low + 0.1(NDL – NOffs-DL) + 0.0025*(2MDL+1)
The carrier frequency of category NB1/NB2 in the uplink is designated by the E-UTRA Absolute Radio Frequency Channel Number (EARFCN) in the range 0 –262143 and the Offset of category NB1/NB2 Channel Number to EARFCN in the range {-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9}. The relation between EARFCN, Offset of category NB1/NB2 Channel Number to EARFCN and the carrier frequency in MHz for the uplink is given by the following equation, where FUL is the uplink carrier frequency of category NB1/NB2, FUL_low and NOffs-UL are given in table 5.2-1, NUL is the uplink EARFCN, MUL is the Offset of category NB1/NB2 Channel Number to uplink EARFCN.
FUL = FUL_low + 0.1(NUL – NOffs-UL) + 0.0025*(2MUL)
NOTE 1: For category NB1/NB2, NDL or NUL is different than the value of EARFCN that corresponds to E-UTRA downlink or uplink carrier frequency for in-band and guard band operation.
NOTE 2: For stand-alone operation, only MDL = -0.5 and MUL= 0 are applicable. For FDDMDL = -0.5 is not applicable for in-band and guard band operation. For TDD MDL {-0.5,+3.5,-4.5,+7.5,-8.5} is not applicable for in-band and guard band operation.
NOTE 3: For the carrier including NPSS/NSSS for in-band and guard band operation, MDL is selected from {-2,-1,0,1}.
NOTE 4: For the carrier including NPSS/NSSS for stand-alone operation, MDL = -0.5.