Rel-18 DC of x bands (x=1,2,3,4) LTE inter-band CA (xDL/1UL) and 2 bands NR inter-band CA (2DL/1UL)
The present document is a technical report for Rel-18 DC of x bands (x=1,2,3,4) LTE inter-band CA (xDL/1UL) and 2 bands NR inter-band CA (2DL/1UL) under Rel-18 time frame. The purpose is to gather the relevant background information and studies to address DC band combinations of inter-band CA for LTE xDL/1UL (x=1,2,3,4) and inter-band CA for NR 2DL/1UL in Rel-18 as shown in Table 1-1.
Table 1-1: Release 18 Dual Connectivity band combination of LTE xDL/1UL (x=1,2,3,4) + inter-band NR 2DL/1UL
Combination
LTE X Bands (x=1,2,3,4) Combinations
NR 2 Bands Combinations
LTE 1 Band
Band x
CA_nY-nZ
LTE 2 Bands
CA_w-x
CA_nY-nZ
LTE 3 Band
CA_v-w-x
CA_nY-nZ
LTE 4 Bands
CA_u-v-w-x
CA_nY-nZ
This TR contains a general part and band-specific combination part. The actual requirements are added to the corresponding technical specifications.