Cisco Cisco Packet Data Gateway (PDG)
S-GW CDR Field Descriptions
▀ CDR Fields
▄ GTPP Interface Administration and Reference, StarOS Release 18
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Serial Number (SNR) is an individual serial number uniquely identifying each equipment within each TAC.
Its length is 6 digits;
Its length is 6 digits;
Software Version Number (SVN) identifies the software version number of the mobile equipment. Its length
is 2 digits.
is 2 digits.
If SV is not available, a filler digit “f” is added after the spare digit to fill up the last byte. Spare digit: this digit is
zero, when transmitted by the MS.
zero, when transmitted by the MS.
Format
BCD encoded octet string
Length
8 bytes
Served IMSI
This field contains the International Mobile Subscriber Identity (IMSI) of the served party. The IMSI is formatted in
accordance with 3GPP TS 23.003.
accordance with 3GPP TS 23.003.
Example for Coding: (Set by SGSN)
3GPP TS 23.003 (CCITT Rec. E 212)ServedIMSI ::= OCTET STRING (SIZE(1..8))--
subscriber identification IMSI-- octet 1..8: <= 15 digits TBCD-String
(twisted)-- substructure (without spares or fillers):-- 3 digits - mobile
country code (MCC)-- 2 digits - mobile network code (MNC)-- <= 10 digits -
mobile subscriber identification number (MSIN)-- first and intermediate octet =
2 digits-- last octet = 2 digits or 1 digit + 1 fill digit H'F--
subscriber identification IMSI-- octet 1..8: <= 15 digits TBCD-String
(twisted)-- substructure (without spares or fillers):-- 3 digits - mobile
country code (MCC)-- 2 digits - mobile network code (MNC)-- <= 10 digits -
mobile subscriber identification number (MSIN)-- first and intermediate octet =
2 digits-- last octet = 2 digits or 1 digit + 1 fill digit H'F--
-- example:-- IMSI: '262025600010020'-- filled: '262025600010020F'-- encoded:
H'62 02 52 06 00 01 20 F0
H'62 02 52 06 00 01 20 F0
Format
BCD encoded octet string
Length
3-8 bytes
Served MSISDN
This field tracks the Mobile Station (MS) ISDN number (MSISDN) of the subscriber which is transparently copied from the
Create Session Request message.
Create Session Request message.
The MSISDN is TBCD encoded as shown in the example below:
3GPP TS 23.003 (CCITT Rec. E 213)
ServedMSISDN ::= OCTET STRING (SIZE(1..9))
MSISDN in CDR is 1:1 copy of the MSISDN sent in GTP-V2 message. MSISDN value contains only the actual
MSISDN number (does not contain the “nature of address indicator” octet, which indicates “international number” as
in 3GPP TS 29.002) and is encoded as TBCD digits (i.e. digits from 0 through 9 are encoded “0000” to “1001”).
When there is an odd number of digits, bits 8 to 5 of the last octet are encoded with the filler “1111”.
MSISDN number (does not contain the “nature of address indicator” octet, which indicates “international number” as
in 3GPP TS 29.002) and is encoded as TBCD digits (i.e. digits from 0 through 9 are encoded “0000” to “1001”).
When there is an odd number of digits, bits 8 to 5 of the last octet are encoded with the filler “1111”.
Example: