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3G/UMTS |
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NITZ (Network Information and Time Zone)
Network Name displayed on your mobile phone screen is determined by two different way as described below : Option 1: UE decode PLMN from Location Updating Accept or Attach Accept message and display the network name registered for the PLMN. Option 2 : Network explicitely notifies UE of Network Information by NAS message, MM:Information and/or GMM:Information as described in this page. Whether to take Option 1 or Option 2 is up to Network Operator's implementation and the exact point of the NAS message if Option 2 is taken is also up to Network Operator's implementation. The protocol sequence for a registration for Option 2 is only an example. The exact sequence would vary depending on each network operator. 1) MIB 2) SIB 3) RACH Preamble 4) AICH 5) RACH Message 6) RRC: RRC Connection Request 7) RRC: RRC Connection Setup 8) RRC: RRC Connection Setup Complete 9) RRC: initialDirectTransfer + MM: Location Updating Request 10) RRC : downlinkDirectTransfer + MM:Authentication Request 11) RRC: initialDirectTransfer + GMM: Attach Request 12) RRC : uplinkDirectTransfer + MM:Authentication Response 13) RRC : Security Mode Command 14) RRC : Security Mode Complete 15) RRC : downlinkDirectTransfer + MM:Identity Request 16) RRC : uplinkDirectTransfer + MM:Identity Response 17) RRC : downlinkDirectTransfer + MM:Location Updating Accept 18) RRC : uplinkDirectTransfer + MM:TMSI Reallocation Complete 19) RRC : downlinkDirectTransfer + MM:Information 20) RRC : downlinkDirectTransfer + GMM: AuthenticationAndCipheringRequest 21) RRC : uplinkDirectTransfer + GMM: AuthenticationAndCipheringResponse 22) RRC : Security Mode Command 23) RRC : Security Mode Complete 24) RRC : downlinkDirectTransfer + GMM:Identity Request 25) RRC : uplinkDirectTransfer + GMM:Identity Response 26) RRC : downlinkDirectTransfer + GMM:Attach Accept 27) RRC : uplinkDirectTransfer + GMM:Attach Complete 28) RRC : downlinkDirectTransfer + GMM:Information 29) RRC : RRC Connection Release 30) RRC : RRC Connection Release Complete
19) RRC : downlinkDirectTransfer + MM:Information
DL-DCCH-Message integrityCheckInfo messageAuthenticationCode: 1e45b70e rrc-MessageSequenceNumber: 2 message: downlinkDirectTransfer (5) downlinkDirectTransfer: r3 (0) r3 downlinkDirectTransfer-r3 rrc-TransactionIdentifier: 1 cn-DomainIdentity: cs-domain (0) nas-Message: 05324312834d228e76ab0523d376584e9fd2ebe4f41b4508... GSM A-I/F DTAP - MM Information Protocol Discriminator: Mobility Management messages .... 0101 = Protocol discriminator: Mobility Management messages (0x05) 0000 .... = Skip Indicator: No indication of selected PLMN (0) 00.. .... = Sequence number: 0 ..11 0010 = DTAP Mobility Management Message Type: MM Information (0x32) Network Name - Full Name Element ID: 0x43 Length: 10 1... .... = Extension: No Extension .000 .... = Coding Scheme: Cell Broadcast data coding scheme, GSM default alphabet, language unspecified, .... .... 0... = Add CI: The MS should not add the letters for the Country's Initials to the text string .... .011 = Number of spare bits in last octet: bits 6 to 8(inclusive) are spare and set to '0' in octet n Text String: TestNetwork Network Name - Short Name Element ID: 0x45 Length: 4 1... .... = Extension: No Extension .000 .... = Coding Scheme: Cell Broadcast data coding scheme, GSM default alphabet, language unspecified, .... .... 0... = Add CI: The MS should not add the letters for the Country's Initials to the text string .... .000 = Number of spare bits in last octet: this field carries no information about the number of spare bits ... Text String: Test Time Zone and Time - Universal Time and Local Time Zone Element ID: 0x47 Year 14, Month 03, Day 25 Hour 04, Minutes 17, Seconds 09 Timezone: GMT - 5 hours 0 minutes Daylight Saving Time Element ID: 0x49 Length: 1 0000 00.. = Spare bit(s): 0 .... ..00 = No adjustment for Daylight Saving Time
28) RRC : downlinkDirectTransfer + GMM:Information
DL-DCCH-Message integrityCheckInfo messageAuthenticationCode: 1905f951 rrc-MessageSequenceNumber: 6 message: downlinkDirectTransfer (5) downlinkDirectTransfer: r3 (0) r3 downlinkDirectTransfer-r3 rrc-TransactionIdentifier: 1 cn-DomainIdentity: ps-domain (1) nas-Message: 08214312834d228e76ab0523d376584e9fd2ebe4f41b4508... GSM A-I/F DTAP - GMM Information Protocol Discriminator: GPRS mobility management messages .... 1000 = Protocol discriminator: GPRS mobility management messages (0x08) 0000 .... = Skip Indicator: No indication of selected PLMN (0) DTAP GPRS Mobility Management Message Type: GMM Information (0x21) Network Name - Full Name Element ID: 0x43 Length: 10 1... .... = Extension: No Extension .000 .... = Coding Scheme: Cell Broadcast data coding scheme, GSM default alphabet, language unspecified, .... .... 0... = Add CI: The MS should not add the letters for the Country's Initials to the text string .... .011 = Number of spare bits in last octet: bits 6 to 8(inclusive) are spare and set to '0' in octet n Text String: TestNetwork Network Name - Short Name Element ID: 0x45 Length: 4 1... .... = Extension: No Extension .000 .... = Coding Scheme: Cell Broadcast data coding scheme, GSM default alphabet, language unspecified, ... .... 0... = Add CI: The MS should not add the letters for the Country's Initials to the text string .... .000 = Number of spare bits in last octet: this field carries no information about the number of spare bits ... Text String: Test Time Zone and Time Element ID: 0x47 Year 14, Month 03, Day 25 Hour 04, Minutes 17, Seconds 10 Timezone: GMT - 5 hours 0 minutes Daylight Saving Time Element ID: 0x49 Length: 1 0000 00.. = Spare bit(s): 0 .... ..00 = No adjustment for Daylight Saving Time
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