Cisco Cisco Packet Data Gateway (PDG)
S-GW CDR Field Descriptions
▀ CDR Fields
▄ GTPP Interface Administration and Reference, StarOS Release 17
382
CSG Access Mode
This field is the CGI access mode of the user accessing a CSG cell.
Possible access modes are:
Closed
Hybrid
Format
Enumerated integer
Length
1 byte
CSG Membership Indication
This field indicates CSG membership for the user when hybrid access applies, as defined in TS 29.060 for
GPRS case, and in TS 29.274 for EPC case.
GPRS case, and in TS 29.274 for EPC case.
Format
Null
Length
Zero
User Location Information
This field contains the User Location Information as described in TS 29.274 for eGTP case (e.g. CGI, SAI, RAI, TAI and
ECGI).
ECGI).
The field is provided by the SGSN/MME and transferred to the S-GW/P-GW during the IP-CAN bearer
activation/modification.
activation/modification.
User Location Information contains the location (e.g. CGI/SAI, ECGI/TAI or RAI) where the UE is located and used
during the transfer of the data volume captured by the container (applicable only to the SGW-CDR). This is included
in the Traffic data container only if previous container's change condition is “user location change”. Note the user
location information in SGW-CDR main level contains the location where the UE was when PGW-CDR was opened.
during the transfer of the data volume captured by the container (applicable only to the SGW-CDR). This is included
in the Traffic data container only if previous container's change condition is “user location change”. Note the user
location information in SGW-CDR main level contains the location where the UE was when PGW-CDR was opened.
The flags ECGI, TAI, RAI, SAI and CGI in octet 1 indicate if the corresponding fields are present in the IE or not. If
one of these flags is set to “0”, the corresponding field is not present at all. The respective identities are defined in
3GPP TS 23.003.
one of these flags is set to “0”, the corresponding field is not present at all. The respective identities are defined in
3GPP TS 23.003.
The following subclauses specify the coding of the different identities. For each identity, if an Administration decides
to include only two digits in the MNC, then bits 5 to 8 of octet 7 are coded as “1111”.
to include only two digits in the MNC, then bits 5 to 8 of octet 7 are coded as “1111”.
CGI field:
The Location Area Code (LAC) consists of 2 octets. Bit 8 of Octet 9 is the most significant bit and bit 1 of Octet 10
the least significant bit. The coding of the location area code is the responsibility of each administration. Coding
using full hexadecimal representation is used.
the least significant bit. The coding of the location area code is the responsibility of each administration. Coding
using full hexadecimal representation is used.
The Cell Identity (CI) consists of 2 octets. Bit 8 of Octet 11 is the most significant bit and bit 1 of Octet 12 the least
significant bit. The coding of the cell identity is the responsibility of each administration. Coding using full
hexadecimal representation is used.
significant bit. The coding of the cell identity is the responsibility of each administration. Coding using full
hexadecimal representation is used.
SAI field: