Lte Tdd Frame

LTE TDD frame 36.211 frame structure type 2 (DL / UL / SSF) Filter Increasing frame configuration Downlin k to Subframe number 3GPP uplink Configurat relea switch ion se point 0 1 2 3 4 5 periodic ity (ms) 0 8 5 D S U U U D 1 8 5 D S U U D D 2 8 5 D S U D D D 3 8 10 D S U U U D 4 8 10 D S U U D D 5 8 10 D S U D D D 6 8 5 D S U U U D

D

Downlink subframe S

Special subframe (see befow) U

Uplink subframe Graphical view of one TDD frame (10ms)

Number of subframes / frame 6 7 8 9

D [D L]

U [U L]

S [SS F]

S S S D D D S

2 4 6 6 7 8 3

6 4 2 3 2 1 5

2 2 2 1 1 1 2

U U U D D D U

U U D D D D U

U D D D D D D

SSF Special SubFrame, normal CP (Dw / GP / Up) Increasing SSF configuration DwPTS 3GPP Configuration release (Ts) 0 8 6592 1 8 19760 2 8 21952 3 8 24144 4 8 26336 5 8 6592 6 8 19760 7 8 21952 8 8 24144 9 11 13168

DwPTS Downlink Pilot Time Slot UpPTS Uplink Pilot Time Slot GP

UpPTS (Ts) 2192 2192 2192 2192 2192 4384 4384 4384 4384 4384

Number of OFDM symbols / subframe Dw GP Up 3 10 1 9 4 1 10 3 1 11 2 1 12 1 1 3 9 2 9 3 2 10 2 2 11 1 2 6 6 2

Guard period Graphical view of a Special Subframe (1ms)