BA.8 Mapping scheme for K=2 Midambles

25.2213GPPPhysical channels and mapping of transport channels onto physical channels (TDD)Release 17TS

m1

m2

1

0

1 or 3 or 5 or 7 or 9 or 11 or 13 or 15 code(s)

0

1

2 or 4 or 6 or 8 or 10 or 12 or 14 or 16 codes

Annex BB (normative):
Signalling of the number of channelisation codes for the DL common midamble case for 7.68Mcps TDD

The following mapping schemes shall apply for the association between the number of channelisation codes employed in a timeslot and the use of a particular midamble shift in the DL common midamble case. In the following tables the presence of a particular midamble shift is indicated by ‘1’. Midamble shifts marked with ‘0’ are left unused. Mapping schemes in section BB.4, BB.5 and BB.6 are not applicable to beacon timeslots where a P-CCPCH is present, because the default midamble allocation scheme is applied to these timeslots. Note that in the mapping schemes of sections BB.4, BB.5 and BB.6, the fixed and pre-allocated channelisation code for the beacon channel is included into the number of indicated channelisation codes.