8.10 Mobile Equipment Identity (MEI)
29.2743GPP3GPP Evolved Packet System (EPS)Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C)Release 18Stage 3TS
Mobile Equipment Identity (MEI) is coded as depicted in Figure 8.10-1. MEI is defined in clause 6.2 of 3GPP TS 23.003 [2].
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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|
1 |
Type = 75 (decimal) |
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2 to 3 |
Length = n |
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4 |
Spare |
Instance |
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5 to (n+4) |
Mobile Equipment (ME) Identity |
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Figure 8.10-1: Mobile Equipment (ME) Identity (MEI)
The ME Identity field contains either the IMEI or the IMEISV as defined in clause 6.2 of 3GPP TS 23.003 [2]. It is encoded as specified in clause 7.7.53 of 3GPP TS 29.060 [4], beginning with octet 4 of Figure 7.7.53.1.
The IMEI(SV) digits are encoded using BCD coding where IMEI is 15 BCD digits and IMEISV is 16 BCD digits. For IMEI, bits 5 to 8 of the last octet shall be filled with an end mark coded as ‘1111’.