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asked 2024-05-23 18:55:41 +0000

DrMom gravatar image

[RLC-LTE] Sequence analysis problem?

Hi, Could you please help to get the root cause of the following issue: UE has successfully finished the attach procedure. After some time UE goes to IDLE state, we can see RRCConnectionRelease in DL_DCCH. PCAP is OK. After Paging message, UE goes to CONNECTED state:

  1. RRCConnectioRequest in UL_CCCH
  2. RRCConnectionSetup in DL_CCCH

But starting from RRCConnectionSetupComplete all LTE RRC DL/UL_DCCH/NAS-EPS packets has rlc-lte.sequence-analysis.ok = False in RLC-LTE.

UE sends first packet with sn=0 for the new SRB (but it seems wireshark can't detect it), so expectedSequenceNumber != sequenceNumber. Is it works as expected?

Screen

[RLC-LTE] Sequence analysis problem?

Hi, Could you please help to get the root cause of the following issue: UE has successfully finished the attach procedure. After some time UE goes to IDLE state, we can see RRCConnectionRelease in DL_DCCH. PCAP is OK. After Paging message, UE goes to CONNECTED state:

  1. RRCConnectioRequest in UL_CCCH
  2. RRCConnectionSetup in DL_CCCH

But starting from RRCConnectionSetupComplete all LTE RRC DL/UL_DCCH/NAS-EPS packets has rlc-lte.sequence-analysis.ok = False in RLC-LTE.

UE sends first packet with sn=0 for the new SRB (but it seems wireshark can't detect it), so expectedSequenceNumber != sequenceNumber. Is it works as expected?

ScreenScreen

[RLC-LTE] Sequence analysis problem?

Hi, Could you please help to get the root cause of the following issue: UE has successfully finished the attach procedure. After some time UE goes to IDLE state, we can see RRCConnectionRelease in DL_DCCH. PCAP is OK. After Paging message, UE goes to CONNECTED state:

  1. RRCConnectioRequest in UL_CCCH
  2. RRCConnectionSetup in DL_CCCH

But starting from RRCConnectionSetupComplete all LTE RRC DL/UL_DCCH/NAS-EPS packets has rlc-lte.sequence-analysis.ok = False in RLC-LTE.

UE sends first packet with sn=0 for the new SRB (but it seems wireshark can't detect it), so expectedSequenceNumber != sequenceNumber. Is Does it works work as expected?

Screen

[RLC-LTE] Sequence analysis problem?

Hi, Could you please help to get the root cause of the following issue: UE has successfully finished the attach procedure. After some time UE goes to IDLE state, we can see RRCConnectionRelease in DL_DCCH. PCAP is OK. After Paging message, UE goes to CONNECTED state:

  1. RRCConnectioRequest in UL_CCCH
  2. RRCConnectionSetup in DL_CCCH

But starting from RRCConnectionSetupComplete all LTE RRC DL/UL_DCCH/NAS-EPS packets has rlc-lte.sequence-analysis.ok = False in RLC-LTE.

UE sends first packet with sn=0 for the new SRB (but it seems wireshark can't detect it), so expectedSequenceNumber != sequenceNumber. Does it work as expected?

Screen