1、 ANSI/TIA-136-511-A-2000 APPROVED: MARCH 31, 2000 REAFFIRMED: OCTOBER 20, 2004 REAFFIRMED: AUGUST 14, 2013 WITHDRAWN: JUNE 12, 2015 TIA-136-511-A (Revision of TIA-136-511) March 2000TDMA Third Generation Wireless- Messages Subject to Encryption NOTICE TIA Engineering Standards and Publications are d
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20、 to TIA/EIA-136 Appendix AA 1,2 Incorporate messages subject to encryption for Domain A fromTIA/EIA-136 Appendix AA 3 Add messages subject to encryption for Domain B.TIA/EIA-136-511-AiiThis page intentionally left blank.TIA/EIA-136-511-AiiiContents1. INTRODUCTION 12. MESSAGE ENCRYPTION DOMAIN A .12.
21、1 ANALOG VOICE CHANNELS .12.1.1 Forward Analog Voice Channel 12.1.1.1 Alert With Info (See TIA/EIA-136-150) 12.1.1.2 Flash With Info (See TIA/EIA-136-150)12.1.2 Reverse Analog Voice Channel.22.1.2.1 Called Address Message (See TIA/EIA-136-150)22.2 DIGITAL TRAFFIC CHANNELS 22.2.1 Forward Traffic Chan
22、nel .22.2.1.1 Alert With Info (See TIA/EIA-136-133) 22.2.1.2 Flash With Info (See TIA/EIA-136-133)22.2.1.3 R-DATA (See TIA/EIA-136-133) 22.2.2 Reverse Traffic Channel32.2.2.1 Flash With Info (see TIA/EIA-136-133) 32.2.2.2 Send Burst DTMF (see TIA/EIA-136-133) 32.2.2.3 Send Continuous DTMF (See TIA/E
23、IA-136-133)32.2.2.4 R-DATA(See TIA/EIA-136-133) .33. MESSAGE ENCRYPTION DOMAIN B .43.1 BCCH MESSAGES SUBJECT TO ENCRYPTION43.2 SPACH MESSAGES SUBJECT TO ENCRYPTION43.3 RACH MESSAGES SUBJECT TO ENCRYPTION .43.4 DTC MESSAGES SUBJECT TO ENCRYPTION .53.4.1 Messages on the RDTC 53.4.2 Messages on the FDT
24、C53.5 ACC AND AVC MESSAGES SUBJECT TO ENCRYPTION .5TIA/EIA-136-511-AivThis page intentionally left blank.TIA/EIA-136-511-A11. Introduction1This document contains requirements for messages to be encrypted encryption and voice privacy2for cellular systems described in TIA/EIA-136. Related documents ar
25、e the latest revisions of:3“Common Cryptographic Algorithms”, TIA4“Interface to Common Cryptographic Algorithms”, TIA52. Message Encryption Domain A6The following is a description of the messages that are enciphered. For each message, the7enciphered fields are designated. The messages are grouped by
26、 channel designation.8Message encryption is enabled/disabled by the field Message Encryption Mode, see9TIA/EIA-136-510.102.1 Analog Voice Channels112.1.1 Forward Analog Voice Channel122.1.1.1 Alert With Info (See TIA/EIA-136-150)13The Alert with INFO message is encrypted. Word 1 of the Mobile Statio
27、n Control Message14contains the order and order qualifier fields that identify this message as ALERT WITH15INFO. No field in Word 1 is encrypted. No field in Word 2 - First Alert With Info Word is16encrypted.17The subsequent words contain a character representation. Each character transmitted is18re
28、presented in IA5 form in a field of 8 bits. Each word contains up to three characters. The 2419bits that comprise the three characters in each FVC word are treated by CMEA as a single20message.21No other fields in the Alert With Information Mmessage are encrypted.222.1.1.2 Flash With Info (See TIA/E
29、IA-136-150)23The Flash with INFO message is encrypted. Word 1 of the Mobile Station Control Message24contains the order and order qualifier field that identify this message as FLASH WITH25INFO. No field in Word 1 is encrypted. No field in Word 2 - Flash With Info Word is26encrypted.27The subsequent
30、words contain a character representation. Each character transmitted is28represented in IA5 form in a field of 8 bits. Each word contains up to three characters. The 2429bits that comprise the three characters in each FVC word are treated by CMEA as a single30message.31No other fields in the Flash W
31、ith Information Message are encrypted.32TIA/EIA-136-511-A22.1.2 Reverse Analog Voice Channel12.1.2.1 Called Address Message (See TIA/EIA-136-150)2The 32 bits in Word 1, - First Word of the Called Address Message which comprise digits 31-8, are encrypted. These 32 bits are treated by CMEA as a new si
32、ngle message. No4additional fields in Word 1 are encrypted.5The 32 bits in each Word 2 (and Word 3 and 4 when sent for 32-Digit Dialing) of the Called6Address Message which comprise further dialed digits are encrypted. These 32 bits are7treated by CMEA as a new single message.8No other fields in the
33、 Called Address Message are encrypted.92.2 Digital Traffic Channels10When encryption is disabled, all fields of all signaling messages sent by the mobile station11and base station are unencrypted.12Encryption shall apply only to the part of the message body specified below. The message13CRC shall ne
34、ver be encrypted.142.2.1 Forward Traffic Channel15When encryption is enabled, the encryptable fields of the following Forward Traffic Channel16messages, as listed below, shall be encrypted. All other Forward Traffic Channel messages17shall be unencrypted.182.2.1.1 Alert With Info (See TIA/EIA-136-13
35、3)19The FACCH message contains up to n characters each represented as 8 bits in the IA5 format.20These are enciphered prior to convolutional coding. The CRC is computed on the resultant 4821bits. For the first slot of a multi-slot message (Continuation Flag = 0) all fields except the22Message Type (
36、40 bits total) are encrypted by CMEA. For the subsequent slots of a multi-slot23message (Continuation Flag =1) all fields are encrypted (total of 48 bits) by CMEA.242.2.1.2 Flash With Info (See TIA/EIA-136-133)25The FACCH message contains up to n characters each represented as 8 bits in the IA5 form
37、at.26These are enciphered prior to convolutional coding. The CRC is computed on the resultant 4827bits. For the first slot of a multi-slot message (Continuation Flag = 0) all fields except the28Message Type (40 bits total) are encrypted by CMEA. For the subsequent slots of a multi-slot29message (Con
38、tinuation Flag =1) all fields are encrypted (total of 48 bits) by CMEA.30No other fields in the Flash With Information Mmessage are encrypted.312.2.1.3 R-DATA (See TIA/EIA-136-133)32The SACCH/FACCH message contains up to n octets of binary information formatted33according to specific TeleService ID
39、contained in Higher Layer Protocol ID of the R-DATA34Unit (TIA/EIA-136-133.). These are enciphered prior to convolutional coding, and only if the35TeleService ID indicates Over-the-Air Activation (See TIA/EIA-136-720.). The CRC is36TIA/EIA-136-511-A3computed on the resultant bits. For the first slot
40、 of a multi-slot message (Continuation Flag =10) all fields except the Message Type are encrypted by CMEA. For the subsequent slots of a2multi-slot message (Continuation Flag =1) all fields are encrypted by CMEA (see.3Implementation Aspects of R-DATA Encryption in TIA/EIA-136-910).42.2.2 Reverse Tra
41、ffic Channel5When encryption is enabled, the encryptable fields of the following Reverse Traffic Channel6messages, as listed below, shall be encrypted. All other Reverse Traffic Channel messages7shall be unencrypted.82.2.2.1 Flash With Info (see TIA/EIA-136-133)9The FACCH message contains up to 63 c
42、haracters each represented as 8 bits in the IA510format. These are enciphered prior to convolutional coding. The CRC is computed on the11resultant 48 bits. For the first slot of a multi-slot message (Continuation Flag = 0) all fields12except the Message Type (40 bits total) are encrypted by CMEA. Fo
43、r the subsequent slots of13a multi-slot message (Continuation Flag =1) all fields are encrypted (total of 48 bits) by14CMEA.15No other fields in the Flash With Info Mmessage are encrypted.162.2.2.2 Send Burst DTMF (see TIA/EIA-136-133)17The FACCH message contains up to 64 digits each represented as
44、4 bits. These are18enciphered prior to convolutional coding. The CRC is computed on the resultant 48 bits. For19the first slot of a multi-slot message (Continuation Flag = 0) all fields except the Message20Type (40 bits total) are encrypted by CMEA. For the subsequent slots of a multi-slot message21
45、(Continuation Flag =1) all fields are encrypted (total of 48 bits) by CMEA.222.2.2.3 Send Continuous DTMF (See TIA/EIA-136-133)23The FACCH message contains 40 bits, 4 of which represent 1 digit. The message is24enciphered prior to convolutional coding. All fields except the Message Type (40 bits tot
46、al)25are encrypted by CMEA. The CRC is computed on the resultant 48 bits.262.2.2.4 R-DATA(See TIA/EIA-136-133)27The SACCH/FACCH message contains up to n octets of binary information formatted28according to specific TeleService ID contained in Higher Layer Protocol ID of the R-DATA29Unit (See TIA/EIA
47、-136-133.). These are enciphered prior to convolutional coding, and only30if the TeleService ID indicates Over-the-Air Activation (See TIA/EIA-136-720.) The CRC is31computed on the resultant bits. For the first slot of a multi-slot message (Continuation Flag =320) all fields except the Message Type
48、are encrypted by CMEA. For the subsequent slots of a33multi-slot message (Continuation Flag =1) all fields are encrypted by CMEA (see34Implementation Aspects of R-DATA Encryption in TIA/EIA-136-910).35TIA/EIA-136-511-A43. Message Encryption Domain B123.1 BCCH Messages Subject to Encryption34No BCCH
49、messages are subject to encryption.563.2 SPACH Messages Subject to Encryption7The following SPACH messages are subject to encryption:8Analog Voice Channel DesignationDigital Traffic Channel DesignationMessage WaitingPageR-DATARegistration AcceptUser Alert93.3 RACH Messages Subject to Encryption10The following RACH messages are subject to encryption:11OriginationPage ResponseR-DATASerial Number12TIA/EIA-136-511-A53.4 DTC Messages Subject to Encryption13.4.1 Messages on the RDTC2The following RDTC messages are subject to encryption:Flash With InfoSend Burst DTMFSend C
