1、 TIA STANDARD ANSI/TIA-895-A-2002 Approved: October 29, 2002 CDMA Tandem Free Operation TIA-895-A (Revision of TIA/EIA-895) OCTOBER 2002 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance Copyright Electronic In
2、dustries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purch
3、asers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. The existence of such Standards and Publications shall not in any respect preclude any member or non-member of T
4、IA from manufacturing or selling products not conforming to such Standards and Publications. Neither shall the existence of such Standards and Publications preclude their voluntary use by Non-TIA members, either domestically or internationally. Standards and Publications are adopted by TIA in accord
5、ance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication. This Standard does not purport to address all safety problems a
6、ssociated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-0030-RV1, formulate
7、d under the cognizance of the TIA TR-45.4 Subcommittee on Radio to Switching Technology.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2002 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS IN
8、DUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) or search online at http:/www.tiaonline.org/standards/search_n_order.cfm All rights reserved Printed in U.S.A. Copyright Electronic Industries
9、Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PLEASE! DONT VIOLATE THE LAW! This document is copyrighted by the TIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a lim
10、ited number of copies through entering into a license agreement. For information, contact: Global Engineering Documents 15 Inverness Way East Englewood, CO 80112-5704 U.S.A. or call U.S.A. and Canada 1-800-854-7179, International (303) 397-7956 Copyright Electronic Industries Alliance Provided by IH
11、S under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY The document to which this Notice is affixed has been prepared by one or more Engineering Committees of the Telecommunications Industry Associat
12、ion (“TIA”). TIA is not the author of the document contents, but publishes and claims copyright to the document pursuant to licenses and permission granted by the authors of the contents. TIA Engineering Committees are expected to conduct their affairs in accordance with the TIA Engineering Manual (
13、“Manual”), the current and predecessor versions of which are available at http:/www.tiaonline.org/standards/sfg/engineering_manual.cfm. TIAs function is to administer the process, but not the content, of document preparation in accordance with the Manual and, when appropriate, the policies and proce
14、dures of the American National Standards Institute (“ANSI”). THE USE OR PRACTICE OF CONTENTS OF THIS DOCUMENT MAY INVOLVE THE USE OF INTELLECTUAL PROPERTY RIGHTS (“IPR”), INCLUDING PENDING OR ISSUED PATENTS, OR COPYRIGHTS, OWNED BY ONE OR MORE PARTIES. TIA MAKES NO SEARCH OR INVESTIGATION FOR IPR. W
15、HEN IPR CONSISTING OF PATENTS AND PUBLISHED PATENT APPLICATIONS ARE CLAIMED AND CALLED TO TIAS ATTENTION, A STATEMENT FROM THE HOLDER THEREOF IS REQUESTED, ALL IN ACCORDANCE WITH THE MANUAL. TIA TAKES NO POSITION WITH REFERENCE TO, AND DISCLAIMS ANY OBLIGATION TO INVESTIGATE OR INQUIRE INTO, THE SCO
16、PE OR VALIDITY OF ANY CLAIMS OF IPR. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY AND ITS NON-INFRINGEMENT OF ANY T
17、HIRD PARTYS INTELLECTUAL PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENTS COMPLIANCE WITH ANY APPLICABLE STATUTE, RULE OR REGULATION. TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGE
18、S, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BASED UPON BREACH O
19、F CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH
20、 LIMITATIONS. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CDMA Tandem Free Operation TIA-895-AiTable of Contents 1 Foreword . vi 2 1 Introduction. 1 3 2 Documentation Conventions . 1
21、 4 3 References. 1 5 3.1 TIA / EIA 1 6 3.2 3GPP2. 2 7 3.3 Other . 2 8 4 Terminology 3 9 4.1 Definitions. 3 10 4.2 Acronyms 3 11 5 General Approach . 4 12 5.1 Background. 4 13 5.2 Principle of Tandem Free Operation. 5 14 5.3 CDMA TFO Version Identification 6 15 6 TFO Frame Structure 7 16 6.1 TFO Fram
22、e Structure for 16 kbps Sub-Multiplexing 7 17 6.1.1 Requirements/Assumptions for TFO Frame Structure Definitions . 7 18 6.1.2 Coding of TFO Frames for 16 kbps Sub-Multiplexing . 7 19 6.1.2.1 Coding of System Identification Bits (S1 S8) 7 20 6.1.2.2 Coding of Speech Codec Type (C1 C4). 8 21 6.1.2.3 E
23、mbedded TFO Message Indicator Bit (C5) 8 22 6.1.2.4 Packet Type Information for CDMA Variable Rate Codecs (D1.D9) 8 23 6.1.2.5 Coding of Time Alignment Bits (T1.T4) 10 24 6.1.2.6 Coding of Data Bits for Q8, EVRC and SMV (D-Bits) 10 25 6.1.2.7 Coding of Data Bits for Q13 (D-Bits). 10 26 6.1.2.8 Rate
24、Reduction Parameters for CDMA Variable Rate Codecs . 11 27 6.1.2.9 Dim-And-Burst with CDMA Variable Rate Codecs . 11 28 6.1.2.10 Rate Reduction Mismatch with CDMA Variable Rate Codecs. 11 29 6.1.3 TFO Frames for 16 kbps Sub-Multiplexing 11 30 6.1.3.1 TFO Frame Structure for CDMA Q8 12 31 6.1.3.2 TFO
25、 Frame Structure for CDMA EVRC 15 32 6.1.3.3 TFO Frame Structure for CDMA SMV 18 33 6.1.3.4 TFO Frame Structure for CDMA Q13 21 34 7 TFO Message Structure 24 35 7.1 Definition of the TFO_REQ Messages . 25 36 7.1.1 Definition of the TFO_Req_Extension_Block 26 37 7.1.2 Cyclic Redundancy Check 26 38 7.
26、1.3 Definition of the Codec_List_Extension_Block . 26 39 7.2 Definition of the TFO_ACK Messages. 27 40 7.2.1 Definition of the TFO_Ack_Extension_Block 27 41 7.3 Definition of the TFO_TRANS Messages 28 42 7.4 Definition of the TFO_NORMAL Message 28 43 7.5 Definition of the TFO_FILL Message 28 44 7.6
27、Definition of the TFO_DUP Message (Not for CDMA-CDMA calls) . 28 45 7.7 Definition of the TFO_SYL Message (Not for CDMA-CDMA calls) 29 46 7.8 Definition of the TFO_DTMF and TFO_DTMF_ACK messages 29 47 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo rep
28、roduction or networking permitted without license from IHS-,-,-TIA-895-A CDMA Tandem Free Operationii7.8.1 Message structure of TFO_DTMF and TFO_DTMF_ACK . 30 1 8 Time Alignment of TFO Frames and TFO Messages . 32 2 8.1 Time Alignment of TFO Messages . 32 3 8.2 Time Alignment of TFO Frames. 32 4 8.3
29、 Time Alignment of TFO Frames to Downlink TRAU Frames 33 5 9 Processes for Tandem Free Operation 34 6 9.1 Rx_TRAU Process 35 7 9.2 Tx_TRAU Process 35 8 9.2.1 Downlink Speech Transmission if TFO is ON 35 9 9.2.2 Synchronization and Bit Errors in Received TFO Frames 36 10 9.3 Tx_TFO Process . 36 11 9.
30、4 Rx_TFO Process. 37 12 9.4.1 Search for and Monitoring of TFO Synchronization. 37 13 9.4.2 Errors in TFO Messages and TFO Frames 37 14 9.5 TFO_Protocol Process 39 15 9.5.1 Messages from Rx_TRAU or local MSC 39 16 9.5.2 Messages to Tx_TRAU. 39 17 9.5.3 Messages to and from Tx_TFO. 39 18 9.5.4 Messag
31、es from Rx_TFO . 39 19 9.5.5 Messages from a higher level system 40 20 10 State Machine of the TFO_Protocol Process for CDMA 41 21 10.1 Initialization 42 22 10.1.1 Not_Active State. 42 23 10.1.2 Wakeup State 42 24 10.2 Establishment 42 25 10.2.1 First_Try State 42 26 10.2.2 Continuous_Retry State 42
32、 27 10.2.3 Periodic_Retry State . 43 28 10.2.4 Monitor State 43 29 10.2.5 Mismatch State 43 30 10.3 Contact State . 43 31 10.4 Connect State 43 32 10.5 Operation State . 43 33 10.6 Tandem . 43 34 11 Detailed Description of TFO_Protocol for CDMA. 44 35 12 CDMA TFO Codec Negotiations 56 36 12.1 Codec
33、Mismatch Resolution . 56 37 12.2 Codec Optimization 56 38 12.3 Rules for Resolving Codec Mismatch that a certain course of action is preferred but not 13 necessarily required; or (in the negative form) that a certain possibility or course of action is discouraged but not 14 prohibited. May and need
34、not indicate a course of action permissible within the limits of the standard. Can and 15 cannot are used for statements of possibility and capability, whether material, physical, or causal. 16 3 References 17 The following documents contain provisions which, through reference in this text, constitu
35、te provisions of the 18 present document. 19 3.1 TIA / EIA 20 For ease of cross referencing, the Telecommunications Industry Association (TIA) / Electronics Industry Association 21 (EIA) references provided this section are aligned with the 3GPP2 references, provided in section 3.2. 22 1. TIA/EIA-96
36、C, Speech Service Option Standard for Wideband Spread Spectrum System, 1998. 23 2. TIA/EIA/IS-127-1, Enhanced Variable Rate Codec, Speech Service Option 3 for Wideband Spread Spec-24 trum Digital Systems, 1998. 25 3. TIA/EIA/IS-733-1, High Rate Speech Service Option 17 for Wideband Spread Spectrum C
37、ommunication 26 Systems, 1999. 27 4. TIA/EIA-829, Interoperability Specification for Tandem Free Operation, June 2000. 28 5. TIA/EIA/IS-893 Selectable Mode Vocoder Service Option for Wideband Spread Spectrum Communication 29 Systems, in ballot, 2002. 30 6. cdma2000 Standards for Spread Spectrum Syst
38、ems Release B: 31 TIA/EIA/IS-2000.1-B, Introduction to cdma2000 Standards for Spread Spectrum Systems, May 2002. 32 TIA/EIA/IS-2000.2-B, Physical Layer Standard for cdma2000 Spread Spectrum Systems, May 2002. 33 TIA/EIA/IS-2000.3-B, Medium Access Control (MAC) Standard for cdma2000 Spread Spectrum S
39、ystems, 34 May 2002. 35 TIA/EIA/IS-2000.4-B, Signaling Link Access Control (LAC) Standard for cdma2000 Spread Spectrum Sys-36 tems, May 2002. 37 TIA/EIA/IS-2000.5-B, Upper Layer (Layer 3) Signaling Standard for cdma2000 Spread Spectrum Systems, 38 May 2002. 39 TIA/EIA/IS-2000.6-B, Analog Signaling S
40、tandard for cdma2000 Spread Spectrum Systems, May 2002. 40 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-895-A CDMA Tandem Free Operation 2 7. TIA/EIA-2001.4-B, Interoperability Sp
41、ecification (IOS) for cdma2000 Access Network Interfaces Part 4 1 (A1, A2, and A5 Interfaces), May 2002. 2 3 3.2 3GPP2 4 The 3GPP2 references are aligned with the TIA/EIA references of section 3.1 and are provided here for information 5 and cross reference purposes. 6 1. 3GPP2 C.S0009-0, Speech Serv
42、ice Option Standard for Wideband Spread Spectrum Systems, December 7 1999. 8 2. 3GPP2 C.S0014-0-1, Enhanced Variable Rate Codec, Speech Service Option 3 for Wideband Spread Spec-9 trum Systems - Addendum 1, December 1999. 10 3. 3GPP2 C.S0020-0-1, High Rate Speech Service Option 17 for Wideband Sprea
43、d Spectrum Communicat-11 ions Systems Addendum 1, December 1999. 12 4. 3GPP2 A.S0004-0.1, 3GPP2 Tandem Free Operation Specification Release A, August 2000. 13 5. 3GPP2 C.S0030-0 v2.0, Selectable Mode Vocoder Service Option for Wideband Spread Spectrum 14 Communication Systems, December 2001. 15 6. c
44、dma2000 Standards for Spread Spectrum Systems Release B: 16 3GPP2 C.S0001-B, Introduction to cdma2000 Standards for Spread Spectrum Systems, May 2002. 17 3GPP2 C.S0002-B, Physical Layer Standard for cdma2000 Spread Spectrum Systems, May 2002. 18 3GPP2 C.S0003-B, Medium Access Control (MAC) Standard
45、for cdma2000 Spread Spectrum Systems, 19 May 2002. 20 3GPP2 C.S0004-B, Signaling Link Access Control (LAC) Standard for cdma2000 Spread Spectrum Sys-21 tems, May 2002. 22 3GPP2 C.S0005-B, Upper Layer (Layer 3) Signaling Standard for cdma2000 Spread Spectrum Systems, 23 May 2002. 24 3GPP2 C.S0006-B,
46、Analog Signaling Standard for cdma2000 Spread Spectrum Systems, May 2002. 25 7. 3GPP2 A.S0014-0, Interoperability Specification (IOS) for cdma2000 Access Network Interfaces Part 4 26 (A1, A2, and A5 Interfaces), May 2002. 27 3.3 Other 28 8. 3GPP TS 28.062: In-band Tandem Free Operation (TFO) of Spee
47、ch Codecs; Version 4.2.0 29 9. GSM 08.62: Digital cellular telecommunication system (Phase 2+); Inband Tandem Free Operation (TFO) 30 of Speech Codecs; Version 7.0.0. 31 32 33 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking p
48、ermitted without license from IHS-,-,-CDMA Tandem Free Operation TIA-895-A 3 4 Terminology 1 4.1 Definitions 2 For the purposes of the present document, the following definitions apply. 3 2G is a 2ndgeneration wireless systems. 4 3G is a 3rdgeneration wireless systems. 5 Decoder provides reconstruction of a speech signal from a compressed format according to an appropriate algor-6 ithm. 7 Encoder provides compression of a speech signal into a new format for bandwidth efficiency according to an 8 ap
