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Content for  TS 24.501  Word version:  17.5.0

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9.12  3GPP specific coding information defined within present documentWord‑p. 817

9.12.1  Serving network name (SNN)Word‑p. 817

The serving network name (SNN) is used:
  • in the Network name field of the AT_KDF_INPUT attribute defined in RFC 5448;
  • in KAUSF derivation function as specified in TS 33.501 Annex A; and
  • in RES* and XRES* derivation function as specified in TS 33.501 Annex A.
SNN shall contain a UTF-8 string without terminating null characters.
SNN is of maximum length of 1020 octets.
SNN consists of SNN-service-code and SNN-network-identifier, delimited by a colon.
SNN-network-identifier identifies the serving PLMN or the serving SNPN.
MCC and MNC in the SNN-PLMN-ID are MCC and MNC of the serving PLMN. If the MNC of the serving PLMN has two digits, then a zero is added at the beginning.
MCC and MNC in the SNN-SNPN-ID are MCC and MNC of the serving SNPN. If the MNC of the serving SNPN has two digits, then a zero is added at the beginning.
SNN-NID contains an NID in hexadecimal digits.
ABNF syntax of SNN is specified in Table 9.12.1.1
SNN =
SNN-service-code ":" SNN-network-identifier
SNN-service-code =
%x35.47 ; "5G"
SNN-network-identifier =
SNN-PLMN-ID / SNN-SNPN-ID
SNN-PLMN-ID =
SNN-mnc-string SNN-mnc-digits "." SNN-mcc-string SNN-mcc-digits "." SNN-3gppnetwork-string "." SNN-org-string ; applicable when not operating in SNPN access operation mode.
SNN-SNPN-ID =
SNN-mnc-string SNN-mnc-digits "." SNN-mcc-string SNN-mcc-digits "." SNN-3gppnetwork-string "." SNN-org-string ":" SNN-NID ; applicable when operating in SNPN access operation mode.
SNN-mnc-digits =
DIGIT DIGIT DIGIT ; MNC of the PLMN ID
SNN-mcc-digits =
DIGIT DIGIT DIGIT ; MCC of the PLMN ID
SNN-mnc-string =
%x6d.6e.63 ; "mnc" in lower case
SNN-mcc-string =
%x6d.63.63 ; "mcc" in lower case
SNN-3gppnetwork-string =
%x33.67.70.70.6e.65.74.77.6f.72.6b ; "3gppnetwork" in lower case
SNN-org-string =
%x6f.72.67 ; "org" in lower case
SNN-NID =
11SNN-hexadecimal-digit ; NID in hexadecimal digits
SNN-hexadecimal-digit =
DIGIT / %x41 / %x42 / %x43 / %x44 / %x45 / %x46
EXAMPLE 1:
In case of a PLMN, if PLMN ID contains MCC = 234 and MNC = 15, SNN is 5G:mnc015.mcc234.3gppnetwork.org.
EXAMPLE 2:
In case of an SNPN, if SNPN ID contains a PLMN ID of MCC = 234 and MNC = 15 and an NID of 123456ABCDEH, SNN is 5G:mnc015.mcc234.3gppnetwork.org:123456ABCDE.
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