1、 ETSI TS 1Digital cellular telecoUniversal Mobile TelTerminal Equipmmu(3GPP TS 27.0TECHNICAL SPECIFICATION127 010 V13.0.0 (2016communications system (Phaelecommunications System (LTE; ment to User Equipment (TE-ultiplexer protocol .010 version 13.0.0 Release 1316-01) hase 2+); (UMTS); UE) 13) ETSI E
2、TSI TS 127 010 V13.0.0 (2016-01)13GPP TS 27.010 version 13.0.0 Release 13Reference RTS/TSGC-0327010vd00 Keywords GSM,LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non l
3、ucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of th
4、e present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific netw
5、ork drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the p
6、resent document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as autho
7、rized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLU
8、GTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Associat
9、ion. ETSI ETSI TS 127 010 V13.0.0 (2016-01)23GPP TS 27.010 version 13.0.0 Release 13Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI
10、members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.
11、etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to
12、 the present document. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as
13、being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“
14、, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 127 010 V13.0.0 (2016-01)33GPP TS
15、 27.010 version 13.0.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g3Introduction 6g31 Scope 7g32 References 7g33 Abbreviations . 7g34 Overview of Multiplexing System . 8g35 Non Error Recovery mode Options 9g35.1 Service Interface Definitio
16、n . 9g35.1.1 Service Definition Model 9g35.1.2 Start up services 10g35.1.3 DLC establishment services 11g35.1.4 Data services . 12g35.1.5 Power Control services . 12g35.1.5.1 Sleep services 12g35.1.5.2 Wakeup services . 12g35.1.6 DLC Release services . 12g35.1.7 Close down services 13g35.1.8 Control
17、 Services 13g35.1.8.1 27.010 Services . 13g35.1.8.1.1 DLC parameter negotiation . 13g35.1.8.1.2 DLC Service Negotiation service 14g35.1.8.1.3 Test service 14g35.1.8.1.4 Flow control services . 14g35.1.8.2 Port Emulation Services 15g35.1.8.2.1 Remote DLC parameter negotiation service 15g35.1.8.2.2 DL
18、C Control Parameter service 15g35.1.8.2.3 DLC Line status indication service 16g35.2 Frame Structure 16g35.2.1 Frame Fields . 16g35.2.1.1 Flag Sequence Field 16g35.2.1.2 Address Field 16g35.2.1.3 Control Field . 17g35.2.1.4 Information Field 17g35.2.1.5 Length Indicator 17g35.2.1.6 Frame Checking Se
19、quence Field (FCS) 18g35.2.2 Format Conventions 18g35.2.3 Frame Validity 19g35.2.4 Frame Abort 19g35.2.5 Inter-frame Fill 19g35.2.6 Basic Option . 19g35.2.6.1 Constraint 19g35.2.7 Advanced Option 20g35.2.7.1 Control-octet transparency 20g35.2.7.2 Start/stop transmission - extended transparency . 20g
20、35.2.7.3 Flow-control transparency 20g35.2.7.4 Frame Structure . 20g35.3 Frame Types . 21g35.3.1 Set Asynchronous Balanced Mode (SABM) command 21g3ETSI ETSI TS 127 010 V13.0.0 (2016-01)43GPP TS 27.010 version 13.0.0 Release 135.3.2 Unnumbered Acknowledgement (UA) response 21g35.3.3 Disconnected Mode
21、 (DM) response . 21g35.3.4 Disconnect (DISC) command . 21g35.3.5 Unnumbered information with header check (UIH) command and response . 21g35.3.6 Unnumbered Information (UI) command and response . 22g35.4 Procedures and States . 22g35.4.1 DLC Establishment. 22g35.4.2 DLC Release . 22g35.4.3 Informati
22、on Transfer . 22g35.4.3.1 Information Data . 22g35.4.3.2 Priority 23g35.4.4 Frame Variables 23g35.4.4.1 Functions of the poll bit 23g35.4.4.2 Functions of the final bit . 24g35.4.5 Time-out considerations . 24g35.4.6 Multiplexer Control Channel 24g35.4.6.1 Message format . 24g35.4.6.2 Operating proc
23、edures 25g35.4.6.3 Message Type and Actions . 25g35.4.6.3.1 DLC parameter negotiation (PN). 25g35.4.6.3.2 Power Saving Control (PSC) . 27g35.4.6.3.3 Multiplexer close down (CLD) 27g35.4.6.3.4 Test Command (Test) 28g35.4.6.3.5 Flow Control On Command (FCon) 28g35.4.6.3.6 Flow Control Off Command (FCo
24、ff) 28g35.4.6.3.7 Modem Status Command (MSC) 28g35.4.6.3.8 Non Supported Command Response (NSC) 30g35.4.6.3.9 Remote Port Negotiation Command (RPN) 31g35.4.6.3.10 Remote Line Status Command(RLS) 33g35.4.6.3.11 Service Negotiation Command (SNC) 34g35.4.7 Power Control and Wake-up Mechanisms 36g35.4.8
25、 Flow Control . 37g35.4.8.1 RTR Flow Control 37g35.4.8.2 XON/XOFF Flow Control 37g35.5 Convergence Layers . 38g35.5.1 Type 1 - Unstructured Octet Stream . 38g35.5.2 Type 2 - Unstructured Octet Stream with flow control, break signal handling and transmission of V.24 signal states 38g35.5.3 Type 3 - U
26、ninterruptible Framed Data 40g35.5.4 Type 4 - Interruptible Framed Data 40g35.6 DLCI Values 41g35.7 System Parameters . 41g35.7.1 Acknowledgement Timer (T1) . 42g35.7.2 Maximum Frame Size (N1) 42g35.7.3 Maximum number of retransmissions (N2) 42g35.7.4 Window Size (k) . 42g35.7.5 Response Timer for m
27、ultiplexer control channel (T2) 42g35.7.6 Response Timer for wake-up procedure(T3) 42g35.8 Start-up and close-down of multiplexer . 42g35.8.1 Start-up procedure. 42g35.8.2 Close-down procedure 43g36 Error Recovery Mode Option . 43g36.1 Frame Types . 43g36.1.1 Information transfer, I, command and res
28、ponse 43g36.1.2 Receive ready, RR, command and response . 43g36.1.3 Receive not ready, RNR, command and response 44g36.1.4 Reject, REJ, command and response 44g36.2 Procedure and State 44g36.2.1 Frame state variables and sequence numbers 44g36.2.1.1 General 44g36.2.1.2 Send state variable V(S) 44g3E
29、TSI ETSI TS 127 010 V13.0.0 (2016-01)53GPP TS 27.010 version 13.0.0 Release 136.2.1.3 Send sequence number N(S) . 44g36.2.1.4 Receive state variable V(R). 44g36.2.1.5 Receive sequence number N(R) 44g36.2.1.6 Use of the P/F bit to assist in error recovery . 45g36.2.2 Exchange of information (I) frame
30、s 45g36.2.2.1 Sending I frames . 45g36.2.2.2 Receiving I frames 45g36.2.2.3 Reception of incorrect frames . 46g36.2.2.4 Station receiving acknowledgements 46g36.2.2.5 Exception conditions and recovery . 46g36.2.2.5.1 Busy . 46g36.2.2.5.2 N(S) sequence error . 46g36.2.2.5.3 Poll/final (P/F) bit (chec
31、kpoint) recovery 46g36.2.2.5.4 REJ recovery . 47g36.2.2.5.5 SABM Command 47g36.2.2.5.6 DISC Command 47g3Annex A (informative): Advice to TE software implementers . 48g3Annex B (informative): Explanatory notes on the CRC Calculation 49g3B.1 Example 49g3B.2 Reflected bits 49g3B.3 Implementation . 50g3
32、B.3.1 Calculate FCS for the example given earlier 50g3B.3.2 Check FCS for the example given earlier . 50g3B.3.3 The transmitter code . 50g3B.3.4 The receiver code . 50g3B.3.5 Reversed CRC table . 51g3Annex C (informative): Change History 52g3History 53g3ETSI ETSI TS 127 010 V13.0.0 (2016-01)63GPP TS
33、 27.010 version 13.0.0 Release 13Foreword This Technical Specification (TS) has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the co
34、ntents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved
35、document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. Introduction The multiplexer protocol described
36、in the present document operates between an UE and a TE and allows a number of simultaneous sessions over a normal serial asynchronous interface. Each session consists of a stream of bytes transferring various kinds of data; for instance, voice, fax, data, SMS, CBS, phonebook maintenance, battery st
37、atus, GPRS, USSD etc. This permits, for example, SMS and CBS to be transferred to a TE when a data connection is in progress. Many other combinations are possible including digital voice. It is, for instance, possible to transfer digital voice in combination with SMS. The multiplexer allows a comple
38、te system to be partitioned in a flexible way between a UE and TE. The design of the multiplexer is flexible and independent of UE/TE platforms, and allows existing applications to work without any modifications. The multiplexer is designed, with special care for battery-powered devices, to include
39、very important functionality such as power saving control and priorities. It is also specially designed to require minimum processing power and memory consumption. The multiplexer is defined as a single mode with different options based on the ISO HDLC standard (ISO/IEC 13239) although the basic opt
40、ion is not in accordance with HDLC. In the basic option, the multiplexer does not make use of any transparency mechanism or error recovery method. The advanced option uses the ISO HDLC standard transparency mechanism and gives the multiplexer an easy re-synchronisation method and the ability to oper
41、ate over links which use DC1/DC3 (XON/XOFF) flow control. The advanced option also may include error-recovery for links subject to errors. In its basic option, the multiplexer is intended for use in situations where the link between UE and TE is of a very good quality and where the HDLC transparency
42、 mechanism (byte stuffing) can not be implemented in the UE. If an UE supports the HDLC transparency mechanism, it shall be used by the multiplexer. The ISO HDLC transparency mechanism must be used if loss of synchronisation may occur caused by, for example, data over-runs or under-runs. The error-r
43、ecovery option should be used in situations where the link is subject to errors. The multiplexer is based on a control channel. On this channel, management information is exchanged, such as parameter negotiation, power saving control information, testing, flow control, close down etc. The multiplexe
44、r is optional, but when supported, it is activated with the AT+CMUX command described in 3GPP TS 27.007 4. ETSI ETSI TS 127 010 V13.0.0 (2016-01)73GPP TS 27.010 version 13.0.0 Release 131 Scope The scope of the present document is to define a multiplexing protocol between a UE and a TE. The multiple
45、xing protocol can be used to send any data, for instance voice, SMS, USSD, fax etc. The present document describes the protocol, but not the commands or data transported with it. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of t
46、he present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP d
47、ocument (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 Void. 2 ISO/IEC 13239 (1997): “Information technology - Telecommunications and information exchange between systems - High-level data l
48、ink control (HDLC) procedures“. 3 3GPP TS 27.005: “Use of Data Terminal Equipment - Data Circuit terminating Equipment (DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS)“. 4 3GPP TS 27.007: “AT command set for User Equipment (UE)“. 5 3GPP TR 21.905: “Vocabulary fo
49、r 3GPP Specifications“. 6 3GPP TS 46.021: “Half rate speech; Substitution and muting of lost frames for half rate speech traffic channels“. 7 ISO/IEC 646 (1991): “Information technology - ISO 7-bit coded character set for information interchange“. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: ABM Asynchronous Balanced Mode DLC Data Link Connection DM Disconnected Mode ERM Error-Recovery Mode FCS Frame Check Sequence MSC Modem Status Command PSC Power Saving ControlSABM Set Asynchronous Balanced Mode UAU Unum
