Page 757 - 5G Basics - Core Network Aspects

Transport aspects 2

Table 9-21 – Derived framing parameters

Parameter Definition

fDMT Symbol rate of transmission expressed in Hz as specified in clause 10.4.4 (same for
upstream and downstream).
f D DS The downstream data symbol rate:
 1 
 M ds 1  
f D DS  f DMT   M SF 


 M F 
 
where:
1 = overhead due to one RMC symbol per TDD frame
1/MSF = overhead due to one sync symbol per superframe
MF = number of symbol periods per TDD frame
f US The upstream data symbol rate:
D
 1 
 M us 1  
f D US  f DMT    M SF 

 M F 
 

f RMC The RMC symbol rate:
 1 
f RMC  f DMT    

 M F 

Beoc The maximum number of eoc bytes per direction per logical frame period

6× +125000×
= min { − , ( 1− )} (Note 3)

DPR DTU payload rate:
DPR  DPR  DPR
D DR
DPRD DTU payload rate part corresponding to data symbols:
 K 
DPR  8( B ) f   FEC    1 DTUframing OH  (Note 1)


D
D
D
 N FEC 
DPReoc The maximum DTU payload rate corresponding to eoc:
DPReoc = ( 8 x Beoc ) / (MF / fDMT )
DPRDR DTU payload rate part corresponding to the data portion of the RMC symbol:
 K 


DPR DR  8( B )  f RMC  FEC    1 DTUframing OH 

DR
 N FEC 

DTUframingOH The relative overhead due to DTU framing:
7
DTUframing OH 
Q  K FEC
NDR The net data rate (for each direction):
NDR  DPR  1000 kbit/s (Note 2)

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