hi,
I am unable to locate num RLC SDU's in processing loop of nrTDDsymbolbasedscheduling new 5G toolbox of matlab 2020b. this feature was available in matlab 2019b.
I need to calculate latency in terms of numRLCSDU's.
Why is this RLCSDU removed from processing loop : For step in only macentity is available.
for symbolNum = 1 : tickGranularity : numSymbolsSim
UEMetrics(:) = 0;
HARQProcessStatus(:) = 0;
symbolType = currentSymbolType(gNB); % Get current symbol type: DL/UL/Guard
if mod(symbolNum - 1, 14) == 0
slotNum = slotNum + 1;
disp('slot number is');
disp(slotNum);
end
% where is RLC block why is it missing ?
% Run MAC and PHY layers of gNB
run(gNB.MACEntity);
run(gNB.PhyEntity);
% Run MAC and PHY layers of UEs
for ueIdx = 1:simParameters.NumUEs
% Read the last received NDI flags for HARQ processes for
% logging (Reading it before it gets overwritten by run function of MAC)
if symbolType == 0 % DL
HARQProcessStatus(ueIdx, :) = getLastNDIFlagHarq(UEs{ueIdx}.MACEntity, 0); % 0 for DL
else
HARQProcessStatus(ueIdx, :) = getLastNDIFlagHarq(UEs{ueIdx}.MACEntity, 1); % 1 for UL
end
run(UEs{ueIdx}.MACEntity);
run(UEs{ueIdx}.PhyEntity);
end
% RLC logging (only at slot boundary)
if mod(symbolNum - 1, 14) == 0 %
for ueIdx = 1:simParameters.NumUEs % For all UEs
% Get RLC statistics
ueRLCStats{ueIdx} = getRLCStatistics(UEs{ueIdx}, ueIdx);
gNBRLCStats{ueIdx} = getRLCStatistics(gNB, ueIdx);
end
logRLCStats(simRLCLogger, ueRLCStats, gNBRLCStats); % Update RLC statistics logs
end
flag=zeros(4,4);
% MAC logging
% Read UL and DL assignments done by gNB MAC scheduler
% at current time. Resource assignments returned by a scheduler (either
% UL or DL) is empty, if either scheduler was not scheduled to run at
% the current time or no resources got scheduled
[resourceAssignmentsUL, resourceAssignmentsDL] = getCurrentSchedulingAssignments(gNB.MACEntity);
% Read throughput and goodput bytes sent for each UE
if symbolType == 0 % DL
[UEMetrics(:, 1), UEMetrics(:, 2)] = getTTIBytes(gNB);
[UEMetrics(:, 3), flag] = getBufferStatus(gNB); % Read pending buffer (in bytes) on gNB, for all the UEs
%flag is set when the downlink buffer for logical channel is zero
%flag correction for non exixtent logical channels
for ueIdx = 2:simParameters.NumUEs
for lcIdx = (simParameters.NumLogicalChannels(ueIdx)+1):1:4
flag(ueIdx,lcIdx)=0;
end
end
end
for ueIdx = 1:simParameters.NumUEs
if symbolType == 0 % DL
% Read the DL channel quality for the UE
channelQuality(ueIdx,:) = getChannelQuality(gNB, 0, ueIdx); % 0 for DL
else
% Read the UL channel quality for the UE
channelQuality(ueIdx,:) = getChannelQuality(gNB, 1, ueIdx); % 1 for UL
% Read throughput and goodput bytes transmitted by the UE in the current TTI
[UEMetrics(ueIdx, 1), UEMetrics(ueIdx, 2)] = getTTIBytes(UEs{ueIdx});
UEMetrics(ueIdx, 3) = getBufferStatus(UEs{ueIdx}); % Read pending buffer (in bytes) on UE
end
end
% Update logs based on the current symbol run of UEs and gNB
logScheduling(simSchedulingLogger, symbolNum, [resourceAssignmentsUL resourceAssignmentsDL], UEMetrics, channelQuality, HARQProcessStatus, symbolType);
% Visualization
% RB assignment visualization (if enabled)
if simParameters.RBVisualization
if symbolNum > 1 && (simParameters.SchedulingType == 1 && (mod(symbolNum, 14) == 0)) || (simParameters.SchedulingType == 0 && (mod(slotNum, rbAssignmentPlotPeriodicity) == 0))
% Plot at slot boundary, if the update periodicity is
% reached
plotRBGrids(simSchedulingLogger);
end
end
% CQI grid visualization (if enabled)
if simParameters.CQIVisualization
if symbolNum > 1 && mod(symbolNum-1, 14) == 0 && mod(slotNum, numSlotsFrame) == 0 % Plot at frame boundary
plotCQIRBGrids(simSchedulingLogger);
end
end
% Plot scheduler metrics and RLC metrics visualization at slot
% boundary, if the update periodicity is reached
if symbolNum > 1 && mod(symbolNum-1, 14) == 0 && mod(slotNum, simParameters.MetricsStepSize) == 0
plotMetrics(simSchedulingLogger);
plotMetrics(simRLCLogger);
end
% Advance timer ticks for gNB and UEs by 'tickGranularity' symbols
end.
