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Globally Unique Temporary Identifier
- • GUTI stands for Globally Unique Temporary Identifier which is allocated by AMF. • It is temporary field and hence does not have any fixed association with any subscriber or device. • GUTI term in 5G NR is used for privacy improvement. • AMF can change allocated 5G GUTI at anytime. Total size of GUTI is 80 bits in size.
www.rfwireless-world.com/5G/5G-NR-UE-IDENTITIES.html5G NR UE IDENTITIES | IMSI, IMEI, SUPI, SUCI, GUTI, S-TMSI ...
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Feb 15, 2012 · On GUTI consist two main components: GUMMEI - that uniquely identifies the MME which has allocated the GUTI; M-TMSI - other that uniquely identifies the UE within the MME because of allocated the GUTI
Jul 10, 2013 · Today's topic is IMSI (International Mobile Subscriber Identity) and GUTI (Globally Unique Temporary Identifier). These two are parameters (identifiers) used in identifying UEs in LTE networks. IMSI is a unique ID that globally identifies a mobile subscriber.
- 5G Nr IMSI
- 5G Nr Imei
- 5G Nr Supi
- 5G Nr Suci
- 5G Nr Guti
- 5G Nr S-Tmsi
- 5G Nr Rntis
- 5G Nr I-Rnti
• The term "IMSI" has been derived from "International Mobile Subscriber Identity". • IMSI structure = { MCC, MNC, MSIN } • Where MCC (Mobile Country Code) is 3 digits long, MNC (Mobile Network Code)is 2 or 3 digits long, MSIN (Mobile Subscriber Identification Number) is upto 10 digits long.
• The term "IMEI" has been derived from "International Mobile Equipment Identity". • IMEI structure = { TAC, SNR, CD } • Where, TAC (Type Allocation Code) is 8 digits long, SNR (Serial Number) is 6 digits long,CD (Check Digit) is 1 digit long.
• The term "SUPI" has been derived from "Subscription Permanent Identifier". • It can either be IMSI or NAI (Network Access Identifier). • NAI is specified in RFC 7542 which represents network specific identity for a private network.
• The term "SUCI" has been derived from "Subscription Concealed Identifier". • It allows SUPI to be signalled without exposing user identity. • Signalling procedures use SUCI instead of SUPI to provide privacy. • SUCI uses 'protection scheme' which can be set to 'Null' in which case SUPI is visible within message.Alternatively, 'protection scheme' ...
• GUTI stands for Globally Unique Temporary Identifier which is allocated by AMF. • It is temporary field and hence does not have any fixed association with any subscriber or device. • GUTI term in 5G NR is used for privacy improvement. • AMF can change allocated 5G GUTI at anytime. Total size of GUTI is 80 bits in size. • 5G NR GUTI = { MCC, MNC, ...
• S-TMSI is short version of 5G-GUTI. It excludes PLMN identity and AMF Region Identity. • It can be used to identify UE within specific AMF region but can not be used to identify UE across set of AMF regions. • It is more efficient compare to GUTI due to its smaller size which reduces signalling overhead during signalling procedures. • S-TMSI stru...
• RNTI stands for Radio Network Temporary Identifiers which are applicable within RAN (Radio Access Network). • They are allocated by BS and are subsequently stored by both BS and UE. • These RNTIs are used to address either individual UE, group of UE or all UEs. All RNTI have length of 16 bits. • For example, ➨C-RNTI can be used to address individ...
• I-RNTI stands for Inactive RNTI which is applicable to RRC Inactive State. • There are two variants of I-RNTI viz. Full I-RNTI and short I-RNTI. ➨Full I-RNTI is 40 bits in length where as short I-RNTI is 24 bits in length. • In contrast to other RNTI, I-RNTI is not used to scramble CRC bits which belongs to PDCCH payload. • I-RNTI is used to addr...
GUTI (Globaly Unique Temporary ID) As the name implies, GUTI is a kind of temporary ID. Each of the UE has a couple of different kind of it's own Unique ID like IMSI, IMEI etc, but to use these unique ID all the time during the communication would make the security vulnerable.
ETSI TS 123 003 V16.3.0 (2020-10) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; Numbering, addressing and identification
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Jan 14, 2014 · If the TIN indicates "GUTI" or "RAT-related TMSI" and the UE holds a valid GUTI, the UE shall indicate the GUTI in the EPS mobile identity IE.
RNTI stands for Radio Network Temporary Identifiers and GUTI stands for Globally Unique Temporary UE Identity. This page on LTE RNTI vs GUTI describes basics of RNTI identifier and GUTI in LTE system.
