• Replay this A-Interface trace sample with Linkbit Simulation Studio
  • 19:41:54.710 Tx1-16 FISU (36830)
    • 81 81 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000001
      .
      BSN1 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000001
      .
      FSN1 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:41:54.889 Rx1-16 FISU (37305)
    • 81 81 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000001
      .
      BSN1 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000001
      .
      FSN1 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:42:22.236 Tx1-16 OPC: 31 DPC: 14600 CR.COMPLETE LAYER 3 INFORMATION.CM SERVICE REQUEST
    • 81 82 38 03 08 F9 07 40 01 53 02 8B 02 02 06 04 43 08 39 FE 04 04 43 1F 00 FE 0F 1E 00 1C 57 05
      08 00 52 F0 20 14 8F 50 FB 17 0D 05 24 61 03 30 58 81 05 F4 35 88 71 56 21 81 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000001
      .
      BSN1 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000010
      .
      FSN2 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..111000
      .
      LI56 Dec (MSU).
      00......
      .
      SpareSpare.
      03
      ....0011
      .
      Service indSCCP.
      ..00....
      .
      SpareSpare.
      00......
      .
      Network indInternational network.
      04
      00001000
      .
      DPCSee below.
      05
      ..111001
      .
      DPC14600.
      11......
      .
      OPCSee below.
      06
      00000111
      .
      OPCSee below.
      07
      ....0000
      .
      OPC31.
      0100....
      .
      SLS4 Dec.
      SCCP ITU.
      08
      00000001
      .
      Message typeCR (1).
      9-11
      .
      Source local reference9110099.
      Protocol class.
      12
      ....0010
      .
      Protocol class2 (class 2).
      0000....
      .
      spare0.
      Pointer to Called party address.
      13
      00000010
      .
      Pointer to Called party address2.
      Pointer to start of optional part.
      14
      00000110
      .
      Pointer to start of optional part6.
      Called party address.
      15
      00000100
      .
      Length indicator4.
      16
      01000011
      Address indicatorsee below.
      0.......
      .
      spare0.
      .1......
      .
      Routing indicator1 (Route on SSN).
      ..0000..
      .
      Global title indicator0 (no global title included).
      ......1.
      .
      SSN indicator1 (address contains a subsystem number).
      .......1
      .
      Point code indicator1 (address contains a signalling point code).
      17-18
      Signalling point codesee below.
      17-18
      .
      Signalling point code14600.
      18
      00......
      .
      spare0.
      19
      11111110
      .
      Subsystem number254 -> reserved for national networks.
      Calling party address.
      20
      00000100
      .
      Parameter nameCalling party address (4).
      21
      00000100
      .
      Length indicator4.
      22
      01000011
      Address indicatorsee below.
      0.......
      .
      spare0.
      .1......
      .
      Routing indicator1 (Route on SSN).
      ..0000..
      .
      Global title indicator0 (no global title included).
      ......1.
      .
      SSN indicator1 (address contains a subsystem number).
      .......1
      .
      Point code indicator1 (address contains a signalling point code).
      23-24
      Signalling point codesee below.
      23-24
      .
      Signalling point code31.
      24
      00......
      .
      spare0.
      25
      11111110
      .
      Subsystem number254 -> reserved for national networks.
      Data.
      26
      00001111
      .
      Parameter nameData (15).
      27
      00011110
      .
      Length indicator30.
      28-57
      .
      Data30 Octets (hex): 00 1C 57 05 08....
      End of optional parameters.
      58
      00000000
      .
      End of optional parameters0.
      GSM BSSAP.
      Distribution Data Unit.
      28
      00000000
      .
      Discrimination Parameter0 (Non Transparent).
      Length indicator.
      29
      00011100
      .
      Length indicator28.
      Layer 3 data.
      30-57
      .
      Layer 3 data28 Octets (hex): 57 05 08 00 52....
      GSM BSSMAP.
      30
      01010111
      .
      Message TypeCOMPLETE LAYER 3 INFORMATION (87).
      Cell Identifier.
      31
      00000101
      .
      Information Element IdentifierCell Identifier (5).
      32
      00001000
      .
      Length8.
      33
      0000....
      .
      spare0.
      ....0000
      .
      Cell identification discriminator0 (The whole Cell Global Identification, CGI, is used to identify the cells).
      34-40
      Cell identificationCGI.
      34-40
      CGIsee below.
      34
      0101....
      .
      MCC dig 25.
      ....0010
      .
      MCC dig 12.
      35
      1111....
      .
      MNC dig 315.
      ....0000
      .
      MCC dig 30.
      36
      0010....
      .
      MNC dig 22.
      ....0000
      .
      MNC dig 10.
      37-38
      .
      LAC5263.
      39-40
      .
      CI value20731.
      Layer 3 Information.
      41
      00010111
      .
      Information Element IdentifierLayer 3 Information (23).
      42
      00001101
      .
      Length13.
      43-55
      .
      Layer 3 information13 Octets (hex): 05 24 61 03 30....
      Chosen Channel.
      56
      00100001
      .
      Information Element IdentifierChosen Channel (33).
      57
      1000....
      .
      Channel mode8 (signalling only).
      ....0001
      .
      Channel1 (SDCCH).
      GSM Radio L3.
      43
      ....0101
      .
      Mobility management protocol discriminator5 (mobility management messages).
      0000....
      .
      Skip Indicator0.
      CM Service Request message type.
      44
      00......
      .
      N(SD)0.
      ..100100
      .
      Message typeCM service request (36).
      Ciphering key sequence number.
      45
      0.......
      .
      Sparespare value (0).
      .110....
      .
      key sequence6 (6).
      CM service type.
      ....0001
      .
      CM service typeMobile originating call establishment or packet mode connection establishment (1).
      Mobile station classmark.
      46
      00000011
      .
      Length indicator3.
      47
      0.......
      .
      Sparespare value (0).
      .01.....
      .
      Revision levelUsed by GSM phase 2 mobile stations (1).
      ...1....
      .
      ES IND'Controlled Early Classmark Sending' option is implemented in the MS (1).
      ....0...
      .
      A5/1 algorithm supportedencryption algorithm A5/1 available (0).
      .....000
      .
      RF power capabilitypower class 1 (0).
      48
      0.......
      .
      Spare2spare value (0).
      .1......
      .
      PS capabilityPS capability present (1).
      ..01....
      .
      SS Screening Indicatorcapability of handling of ellipsis notation and phase 2 error handling (1).
      ....1...
      .
      SM capabilityMobile station supports mobile terminated point to point SMS (1).
      .....0..
      .
      VBS notification receptionno VBS capability or no notifications wanted (0).
      ......0.
      .
      VGCS notification receptionno VGCS capability or no notifications wanted (0).
      .......0
      .
      FC Frequency CapabilityWhen a GSM 900 band is used - The MS does not support the E-GSM or R-GSM band (0).
      49
      1.......
      .
      CM3The MS supports options that are indicated in classmark 3 IE (1).
      .0......
      .
      Spare3spare value (0).
      ..0.....
      .
      LCS VA capabilitylocation request notification via CS domain not supported (0).
      ...0....
      .
      UCS2 treatmentthe ME has a preference for the default alphabet (defined in 3GPP TS 23.038 [8b]) over.
      .
      UCS2 (0)
      ....0...
      .
      SoLSAThe ME does not support SoLSA (0).
      .....0..
      .
      CM Service Prompt'Network initiated MO CM connection request' not supported (0).
      ......0.
      .
      A5/3 algorithm supportedencryption algorithm A5/3 not available (0).
      .......1
      .
      A5/2 algorithm supportedencryption algorithm A5/2 available (1).
      Mobile identity.
      50
      00000101
      .
      Length indicator5.
      51
      .....100
      .
      Type of identityTMSI/P-TMSI (4).
      ....0...
      .
      Odd/even indicatoreven number of identity digits and also when the TMSI/P-TMSI is used (0).
      1111....
      .
      spare15.
      52-55
      .
      TMSI/P-TMSI Identity digits4 Octets (hex): 35 88 71 56.
  • 19:42:22.283 Tx1-16 FISU (95)
    • 81 82 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000001
      .
      BSN1 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000010
      .
      FSN2 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:42:22.283 Rx1-16 FISU (1)
    • 82 81 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000010
      .
      BSN2 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000001
      .
      FSN1 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:42:22.453 Tx1-16 FISU (180)
    • 81 82 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000001
      .
      BSN1 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000010
      .
      FSN2 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:42:22.453 Rx1-16 FISU (223)
    • 82 81 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000010
      .
      BSN2 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000001
      .
      FSN1 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:42:22.453 Rx1-16 OPC: 14600 DPC: 31 CC
    • 82 82 0E 03 1F 00 42 4E 02 53 02 8B E2 02 E8 02 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000010
      .
      BSN2 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000010
      .
      FSN2 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..001110
      .
      LI14 Dec (MSU).
      00......
      .
      SpareSpare.
      03
      ....0011
      .
      Service indSCCP.
      ..00....
      .
      SpareSpare.
      00......
      .
      Network indInternational network.
      04
      00011111
      .
      DPCSee below.
      05
      ..000000
      .
      DPC31.
      00......
      .
      OPCSee below.
      06
      01000010
      .
      OPCSee below.
      07
      ....1110
      .
      OPC14600.
      0100....
      .
      SLS4 Dec.
      SCCP ITU.
      08
      00000010
      .
      Message typeCC (2).
      9-11
      .
      Destination local reference9110099.
      12-14
      .
      Source local reference15205090.
      Protocol class.
      15
      ....0010
      .
      Protocol class2 (class 2).
      0000....
      .
      spare0.
      Pointer to start of optional part.
      16
      00000000
      .
      Pointer to start of optional part0 (No optional part).
  • 19:42:22.453 Tx1-16 FISU (1)
    • 82 82 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000010
      .
      BSN2 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000010
      .
      FSN2 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:42:22.454 Rx1-16 FISU (1)
    • 82 82 00
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000010
      .
      BSN2 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000010
      .
      FSN2 Dec.
      1.......
      .
      FIB1 Dec.
      02
      ..000000
      .
      LI0 (FISU).
      00......
      .
      SpareSpare.
  • 19:42:22.458 Rx1-16 OPC: 14600 DPC: 31 DT1.AUTHENTICATION REQUEST
    • 82 83 22 03 1F 00 42 4E 06 53 02 8B 00 01 16 01 80 13 05 12 00 45 BF 0D C2 AE FA 8F 8D 8B B7 8D
      6A 6F AC 38 EA
      
      POS
      BINARY
      NAME
      VALUE
      MTP.
      00
      .0000010
      .
      BSN2 Dec.
      1.......
      .
      BIB1 Dec.
      01
      .0000011
      .
      FSN3 Dec.
      1.......
      .
      FIB1 Dec.
      02