Content for  TS 38.104  Word version:  18.3.0

For carrier aggregation, the transmission bandwidth configuration is defined per component carrier and the requirement is specified in clause 5.3.2.

For intra-band contiguous carrier aggregation, Aggregated BS Channel Bandwidth and Guard Bands are defined as follows, see Figure 5.3A.2-1.

The aggregated BS Channel Bandwidth, BW_{Channel_CA}, is defined as The lower bandwidth edge F_edge,low and the upper bandwidth edge F_edge,high of the aggregated BS channel bandwidth are used as frequency reference points for transmitter and receiver requirements and are defined by The lower and upper frequency offsets depend on the transmission bandwidth configurations of the lowest and highest assigned edge component carrier and are defined as N_RB,low and N_RB,high are the transmission bandwidth configurations according to Table 5.3.2-1 or Table 5.3.2-2 or Table 5.3.2-3 for the lowest and highest assigned component carrier, SCS_low and SCS_high are the sub-carrier spacing for the lowest and highest assigned component carrier respectively. SCS_low, SCS_high, N_RB,low, N_RB,high, BW_GB,low and BW_GB,high use the largest μ value among the subcarrier spacing configurations supported in the operating band for both of the channel bandwidths according to Table 5.3.5-1 and BW_GB,low and BW_GB,high are the minimum guard band for lowest and highest assigned component carrier according to Table 5.3.3-1 for the said μ value. In case there is no common μ value for both of the channel bandwidths, μ=1 is used for SCS_low, SCS_high, N_RB,low, N_RB,high, BW_GB,low and BW_GB,high. For intra-band non-contiguous carrier aggregation sub-block bandwidth and sub-block edges are defined as follows, see Figure 5.3A.2-2.

The lower sub-block edge of the sub-block bandwidth (BW_{Channel,block}) is defined as follows: The upper sub-block edge of the sub-block bandwidth is defined as follows: The sub-block bandwidth, BW_{Channel,block}, is defined as follows: The lower and upper frequency offsets F_{offset,block,low} and F_{offset,block,high} depend on the transmission bandwidth configurations of the lowest and highest assigned edge component carriers within a sub-block and are defined as where N_RB,low and N_RB,high are the transmission bandwidth configurations according to Table 5.3.2-1 or Table 5.3.2-2 for the lowest and highest assigned component carrier within a sub-block, respectively. SCS_low and SCS_high are the sub-carrier spacing for the lowest and highest assigned component carrier within a sub-block, respectively. SCS_low, SCS_high, N_RB,low, N_RB,high, BW_GB,low and BW_GB,high use the largest μ value among the subcarrier spacing configurations supported in the operating band for both of the channel bandwidths according to Table 5.3.5-1 and BW_GB,low and BW_GB,high are the minimum guard band for lowest and highest assigned component carrier according to Table 5.3.3-1 for the said μ value. In case there is no common μ value for both of the channel bandwidths, μ=1 is used for SCS_low, SCS_high, N_RB,low, N_RB,high, BW_GB,low and BW_GB,high. The sub-block gap size between two consecutive sub-blocks W_gap is defined as follows: