System Manual

BreezeCOMPACT System Manual
Chapter 1: System Description
Br
eezeCOMPACT Features
35
1.5.2.2
LTE TDD Special Subframe Configuration
The Special subframe contains the DL (DwPTS), Gap and UL (UpPTS) parts. A longer Gap
supports a longer range. Figure 15 describes the special subframe types.
Figure 15: Subframe Types
The Special subframe configuration defines the cell radius limitation, in addition to the
throughput allocation for the DL and the UL. UE’s located further than the cell radius are not
registered to the eNodeB.
Cell radius limitations may reduce inter-cell configuration issues and enable the UE to register
the correct eNodeB.
The table below describes the Special subframe configuration for each range.
Table 2-4: Cell Radius and Special Subframes
Cell Radius (Km)
SpecialSubframeCfg
Maximum SSupported RRange
R <= 10
0 to 3, 7
10 km
R <= 20
0 to 2
20 km
R <= 30
0 to 1
30 km
R <= 39
0
39 km
R <= 60
0
60 km
1.5.3
BreezeCOMPACT QoS
3GPP defines the following levels of quality of service (QoS):

QCI 1–4:
Guaranteed Bit Rate (GBR) service

QCI 5–9:
Non-Guaranteed Bit Rate (Non-GBR)