Synchronous Usage Report for Online or Offline Bearer Recalculation
The following call flow and procedure explains the Offline SDFs and Online URRs Usage Report in N4 Session Modification Request with immediate trigger.

Step | Description | ||
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1 |
S-GW sends Modify Bearer Request with new ULI. |
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2 |
SMF sends Modify Bearer Response to the S-GW. |
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3 |
SMF sends N4 Session Modification Request to the UPF with Query URR for both online and offline URRs. |
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4 |
UPF sends N4 Session Modification Response for Offline SDFs and Online URRs with reporting trigger Immediate. |
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5 |
SMF sends GTPP Data Transfer Request with SDF Containers.
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6 |
SMF receives GTPP Data Record Transfer Response from OFCS. |
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7 |
SMF sends Gy CCR-U with one/multiple MSCCs for each RG+SID to the OCS. |
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8 |
SMF receives Gy CCA-I with quota, triggers for each RG+Service ID. |
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9 |
SMF sends N4 Session Modification Request with update URR-with quota for required online URRs and update URR – with bearer recalculate for offline bearer level URR. |
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10 |
UPF sends N4 Session Modification Response to the SMF. |
Sample Configuration
The following is a sample message output for an Offline Bearer level URR.
URR ID:
Type: 81 Length: 4
Value: 0x80000002
USAGE REPORT TRIGGER:
Type: 63 Length: 2
Time Threshold
VOLUME MEASUREMENT:
Type: 66 Length: 25
Total Volume: 450
Uplink Volume: 250
Downlink Volume: 200
DURATION MEASUREMENT:
Type: 67 Length: 4
Value: 100
URR ID:
Type: 81 Length: 4
Value: 0x00000021.
USAGE REPORT TRIGGER:
Type: 63 Length: 2
Linked Usage Reporting
VOLUME MEASUREMENT:
Type: 66 Length: 25
Total Volume: 450
Uplink Volume: 250
Downlink Volume: 200
DURATION MEASUREMENT:
Type: 67 Length: 4
Value: 87
accessPointNameNi cisco.com
ratingGroup 10
chargingRuleBaseName cisco
resultCode 2001
localSequenceNumber 1
timeOfFirstUsage 220822005641-0400
timeOfLastUsage 220822005646-0400
timeUsage 5
serviceConditionChange Time Limit
qCI 5
maxRequestedBandwithUL 0
maxRequestedBandwithDL 0
guaranteedBitrateUL 0
guaranteedBitrateDL 0
aRP 5
servingNodeAddress 2002::2:61
datavolumeFBCUplink 250
datavolumeFBCDownlink 200
timeOfReport 220822005818-0400
userLocationInformation
Location Type TAI
MCC 214
MNC 365
TAC 0x6789
Location Type ECGI
MCC 214
MNC 365
ECI 0x1234567