Page 1085 - 5G Basics - Core Network Aspects

Transport aspects 2

s; = M × T seconds) s; = M × T seconds)
TDD frame (M = 23 symbol T F F S TDD sync frame (M = 23 symbol T F F S
F
F
Downstream M = 14 M = 8 Downstream M = 14 M = 8
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ds
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Line 1 rmc d d idle idle Upstream rmc d idle idle idle Upstream rmc ...
TTR = 5; TBUDGET = 3; TA = 0; TTR = 5; TBUDGET = 2; TA = 0;
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[TIQ = 0, B' = 0, B = 0]; [TIQ = 1, B' = 0, B = 0];
Line 2 rmc d d d idle Upstream rmc d d d idle Upstream rmc ...
TTR = 5; TBUDGET = 4; TA = 0; TTR = 5; TBUDGET = 4; TA = 0;
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[TIQ = 0, B' = 0, B = 0]; [TIQ = 0, B' = 0, B = 0];
Line 3 rmc d idle idle idle Upstream rmc d d idle idle Upstream rmc ...
TTR = 5; TBUDGET = 2; TA = 0; TTR = 5; TBUDGET = 3; TA = 0;
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[TIQ = 0, B' = 0, B = 0]; [TIQ = 0, B' = 0, B = 0];
Line 4 d d d d rmc d d d d d d d d d Upstream d d d rmc d d d d d d d d d Upstream d d d d rmc ...
TTR = 5; TBUDGET = 13; TA = 0; TTR = 5; TBUDGET = 14; TA = 0;
ds
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DRMC = 4 [TIQ = 0, B' = 8, B = 8]; ds ds [TIQ = 0, B' = 9, B = 9]; ds ds
ds
t = 0 t = T F t = 2T F
NOI DOI NOI DOI
DS logical frame (T ) containing DS sync symbol DS logical frame without DS sync symbol
F
rmc rmc symbol d data symbol = q quiet symbol idle idle symbol sync symbol
G.9701(14)_FVI.5a
TTR = duration of the normal operation interval TA = number of quiet symbols immediately after TTR
TBUDGET+TA–1 = index of the last symbol position in a logical frame eligible for carrying a data symbol
(a) Downstream
TDD sync frame (M = 23symbol s; T F = M × T seconds) TDD sync frame (M = 23 symbol T F = M × T seconds)
s;
F
S
F
S
F
F
M = 14 Upstream M = 8 M = 14 Upstream M = 8 M = 14 M = 8
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Line 1 Downstream rmc d d d Downstream rmc d d d Downstream rmc d ...
TTR =3; TBUDGET = 4; TA = 0; TTR = 3; TBUDGET = 4; TA = 0;
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[B' = 2, B = 2]; [B' = 2, B = 2];
Line 2 Downstream rmc idle idle Downstream rmc d idle Downstream rmc d ...
TTR = 3; TBUDGET = 1; TA = 0; TTR = 3; TBUDGET = 2; TA = 0;
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[B' = 0, B = 0]; [B' = 0, B = 0];
Line 3 Downstream rmc d idle Downstream rmc d d Downstream rmc d ...
TTR = 3; TBUDGET = 2; TA = 0; TTR = 3; TBUDGET = 3; TA = 0;
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[B' = 0, B = 0]; [B' = 0, B = 0];
Line 4 Downstream d d d rmc d d d Downstream d d rmc d d d Downstream d d d rmc d ...
TTR = 3; TBUDGET = 7; TA = 1; TTR = 3; TBUDGET = 7; TA = 1;
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[B' = 4, B = 3] [B' = 4, B = 4];
t = 0 DRMC = 3 t = T F
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NOI DOI NOI DOI
Upstream logical frame (T ) containing sync symbol Upstream logical frame (T ) without sync symbol
F
F
rmc rmc symbol d data symbol = q quiet symbol idle idle symbol sync symbol
G.9701(14)_FVI.5b
TTR = duration of the normal operation interval TA = number of quiet symbols immediately after TTR
TBUDGET+TA–1 = index of the last symbol position in a logical frame eligible for carrying a data symbol
(b) Upstream
Figure VI.5 – Example 4: Use of idle symbols in case TBUDGET < TTR

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