Fujian Helios Technologies Co., Ltd.
www.heliostelecom.com
16
TDD Switch Mode
: Including 4 modes of Uplink Off/Downlink On, Uplink
On/Downlink Off, Uplink Off/Downlink Off and Normal
Carrier Selection Method
: Manual/Automatic
Manual Locked Carrier
: Lock the carrier from the Carrier List
Sync Threshold (dBm)
: Minimum Timeslot 1 input power for synchronization
PSS
: Primary Synchronization Signal
SSS
: Secondary Synchronization Signal
Uplink/Downlink Allocation
: As
per 3GPP standard, there’re 7 kinds of
Uplink/Downlink Allocations as following:
Uplink-Downlink Allocations
UL/DL
Configuration
Period
(ms)
Subframe number
0
1
2
3
4
5
6
7
8
9
0
5
D
S
U
U
U
D
S
U
U
U
1
D
S
U
U
D
D
S
U
U
D
2
D
S
U
D
D
D
S
U
D
D
3
10
D
S
U
U
U
D
D
D
D
D
4
D
S
U
U
D
D
D
D
D
D
5
D
S
U
D
D
D
D
D
D
D
6
5
D
S
U
U
U
D
S
U
U
D
Cyclic Prefix Config
: 0 (normal CP) or 1 (Extended CP)
Special Subframe Config
: As per 3GPP standard, there’re 9 kinds of Special
Subframe configuration as following:
DwPTS/GP/UpPTS length (OFDM symbols)
Format
Normal CP (Cyclic
Prefix)
Extended CP (Cyclic
Prefix)