Rel-18 Dual Connectivity (DC) of 1 band LTE (1DL/1UL) and 1 NR band (1DL/1UL)
The present document is a technical report for Dual Connectivity (DC) of 1 LTE band (1DL/1UL) and 1 NR band (1DL/1UL) under Rel-18 time frame.
The purpose is to gather the relevant background information and studies in order to address Dual Connectivity (DC) of 1 LTE band (1DL/1UL) and 1 NR band (1DL/1UL) for the Rel-18 band combinations in Table 1-1, 1-2, 1-3 and 1-4, including EN-DC and NE-DC combinations. The actual requirements are added to the corresponding technical specifications.
Table 1-1: Release 18 EN-DC of 1 LTE band (1DL/1UL) and 1 NR band (1DL/1UL) within FR1
DC combination
Uplink EN-DC configuration
DC_3(n)AA
DC_3(n)AA1
DC_8B_n78A
DC_8A_n78A
DC_8B_n78A
DC_3C_n28A
DC_3C_n28A
DC_1A_n26A
DC_1A_n26A
DC_3A_n26A
DC_3A_n26A
DC_3C_n26A
DC_3A_n26A
DC_3C_n26A
DC_7A_n26A
DC_7A_n26A
DC_7C_n26A
DC_7A_n26A
DC_7C_n26A
DC_28A_n20A
DC_28A_n20A
DC_1A_n1A
DC_1A_n1A1
DC_28A_n38A
DC_28A_n38A
DC_8A_n38A
DC_8A_n38A
DC_5A_n25A
DC_5A_n25A
DC_5A_n41A
DC_5A_n41A
DC_71A_n25A
DC_71A_n25A
DC_7A_n12A
DC_7A_n12A
DC_71A_n7A
DC_71A_n7A
DC_1A_n105A
DC_1A_n105A
DC_3A_n105A
DC_3A_n105A
DC_7A_n105A
DC_7A_n105A
DC_71A_n12A
DC_71A_n12A1
DC_5A_n28A
DC_5A_n28A
DC_14A_n41A
DC_14A_n41A
DC_40A_n3A
DC_40A_n3A
DC_40A_n7A
DC_40A_n7A
DC_20A_n40A
DC_20A_n40A
DC_8B_n1A
DC_8B_n1A
DC_41A_n79C
DC_41A_n79C
DC_28A_n105A
DC_28A_n105A1
NOTE 1: Only single switched UL is supported
Table 1-2: Release 18 EN-DC of 1 LTE band (1DL/1UL) and 1 NR band (1DL/1UL) including FR2
DC combination
Uplink EN-DC configuration
Table 1-3: Release 18 NE-DC of 1 LTE band (1DL/1UL) and 1 NR band (1DL/1UL) within FR1
DC combination
Uplink NE-DC configuration
DC_n40A_42A
DC_n40A_42C
DC_n40A_42D
DC_n40A_42A
Table 1-4: Release 18 NE-DC of 1 LTE band (1DL/1UL) and 1 NR band (1DL/1UL) including FR2
DC combination
Uplink NE-DC configuration