1、 ETSI TS 127 010 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Terminal Equipment to User Equipment (TE-UE) multiplexer protocol (3GPP TS 27.010 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 12
2、7 010 V15.0.0 (2018-07)13GPP TS 27.010 version 15.0.0 Release 15Reference RTS/TSGC-0327010vf00 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 lucratif e
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9、GSM Association. ETSI ETSI TS 127 010 V15.0.0 (2018-07)23GPP TS 27.010 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these essential IPRs, if any,
10、 is publicly available for ETSI 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
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13、ht to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Gene
14、ration 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 being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP
15、 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“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafti
16、ng 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 V15.0.0 (2018-07)33GPP TS 27.010 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs
17、terminology 2g3Foreword . 6g3Introduction 6g31 Scope 7g32 References 7g33 Abbreviations . 7g34 Overview of Multiplexing System . 8g35 Non Error Recovery mode Options 9g35.1 Service Interface Definition . 9g35.1.1 Service Definition Model 9g35.1.2 Start up services 10g35.1.3 DLC establishment service
18、s 11g35.1.4 Data services . 11g35.1.5 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 Services 13g35.1.8.1 27.010 Services . 13g35.1.8.1.1 DLC parameter negotiation . 13g35.1.8.1.2 DLC
19、Service Negotiation service 13g35.1.8.1.3 Test service 14g35.1.8.1.4 Flow control services . 14g35.1.8.2 Port Emulation Services 14g35.1.8.2.1 Remote DLC parameter negotiation service 14g35.1.8.2.2 DLC Control Parameter service 15g35.1.8.2.3 DLC Line status indication service 15g35.2 Frame Structure
20、 15g35.2.1 Frame Fields . 15g35.2.1.1 Flag Sequence Field 16g35.2.1.2 Address Field 16g35.2.1.3 Control Field . 16g35.2.1.4 Information Field 17g35.2.1.5 Length Indicator 17g35.2.1.6 Frame Checking Sequence Field (FCS) 17g35.2.2 Format Conventions 18g35.2.3 Frame Validity 18g35.2.4 Frame Abort 18g35
21、.2.5 Inter-frame Fill 18g35.2.6 Basic Option . 18g35.2.6.1 Constraint 19g35.2.7 Advanced Option 19g35.2.7.1 Control-octet transparency 19g35.2.7.2 Start/stop transmission - extended transparency . 19g35.2.7.3 Flow-control transparency 20g35.2.7.4 Frame Structure . 20g35.3 Frame Types . 20g35.3.1 Set
22、 Asynchronous Balanced Mode (SABM) command 20g35.3.2 Unnumbered Acknowledgement (UA) response 20g35.3.3 Disconnected Mode (DM) response . 20g3ETSI ETSI TS 127 010 V15.0.0 (2018-07)43GPP TS 27.010 version 15.0.0 Release 155.3.4 Disconnect (DISC) command . 20g35.3.5 Unnumbered information with header
23、check (UIH) command and response . 21g35.3.6 Unnumbered Information (UI) command and response . 21g35.4 Procedures and States . 21g35.4.1 DLC Establishment. 21g35.4.2 DLC Release . 21g35.4.3 Information Transfer . 21g35.4.3.1 Information Data . 21g35.4.3.2 Priority 22g35.4.4 Frame Variables 22g35.4.
24、4.1 Functions of the poll bit 22g35.4.4.2 Functions of the final bit . 23g35.4.5 Time-out considerations . 23g35.4.6 Multiplexer Control Channel 23g35.4.6.1 Message format . 23g35.4.6.2 Operating procedures 24g35.4.6.3 Message Type and Actions . 24g35.4.6.3.1 DLC parameter negotiation (PN). 24g35.4.
25、6.3.2 Power Saving Control (PSC) . 26g35.4.6.3.3 Multiplexer close down (CLD) 26g35.4.6.3.4 Test Command (Test) 26g35.4.6.3.5 Flow Control On Command (FCon) 26g35.4.6.3.6 Flow Control Off Command (FCoff) 27g35.4.6.3.7 Modem Status Command (MSC) 27g35.4.6.3.8 Non Supported Command Response (NSC) 29g3
26、5.4.6.3.9 Remote Port Negotiation Command (RPN) 29g35.4.6.3.10 Remote Line Status Command(RLS) 32g35.4.6.3.11 Service Negotiation Command (SNC) 33g35.4.7 Power Control and Wake-up Mechanisms 34g35.4.8 Flow Control . 35g35.4.8.1 RTR Flow Control 35g35.4.8.2 XON/XOFF Flow Control 36g35.5 Convergence L
27、ayers . 37g35.5.1 Type 1 - Unstructured Octet Stream . 37g35.5.2 Type 2 - Unstructured Octet Stream with flow control, break signal handling and transmission of V.24 signal states 37g35.5.3 Type 3 - Uninterruptible Framed Data 39g35.5.4 Type 4 - Interruptible Framed Data 39g35.6 DLCI Values 39g35.7
28、System Parameters . 40g35.7.1 Acknowledgement Timer (T1) . 40g35.7.2 Maximum Frame Size (N1) 40g35.7.3 Maximum number of retransmissions (N2) 40g35.7.4 Window Size (k) . 40g35.7.5 Response Timer for multiplexer control channel (T2) 41g35.7.6 Response Timer for wake-up procedure(T3) 41g35.8 Start-up
29、and close-down of multiplexer . 41g35.8.1 Start-up procedure. 41g35.8.2 Close-down procedure 41g36 Error Recovery Mode Option . 41g36.1 Frame Types . 41g36.1.1 Information transfer, I, command and response 42g36.1.2 Receive ready, RR, command and response . 42g36.1.3 Receive not ready, RNR, command
30、and response 42g36.1.4 Reject, REJ, command and response 42g36.2 Procedure and State 42g36.2.1 Frame state variables and sequence numbers 42g36.2.1.1 General 42g36.2.1.2 Send state variable V(S) 43g36.2.1.3 Send sequence number N(S) . 43g36.2.1.4 Receive state variable V(R). 43g3ETSI ETSI TS 127 010
31、 V15.0.0 (2018-07)53GPP TS 27.010 version 15.0.0 Release 156.2.1.5 Receive sequence number N(R) 43g36.2.1.6 Use of the P/F bit to assist in error recovery . 43g36.2.2 Exchange of information (I) frames 43g36.2.2.1 Sending I frames . 43g36.2.2.2 Receiving I frames 43g36.2.2.3 Reception of incorrect f
32、rames . 44g36.2.2.4 Station receiving acknowledgements 44g36.2.2.5 Exception conditions and recovery . 44g36.2.2.5.1 Busy . 44g36.2.2.5.2 N(S) sequence error . 44g36.2.2.5.3 Poll/final (P/F) bit (checkpoint) recovery 45g36.2.2.5.4 REJ recovery . 45g36.2.2.5.5 SABM Command 45g36.2.2.5.6 DISC Command
33、45g3Annex A (informative): Advice to TE software implementers . 46g3Annex B (informative): Explanatory notes on the CRC Calculation 47g3B.1 Example 47g3B.2 Reflected bits 47g3B.3 Implementation . 47g3B.3.1 Calculate FCS for the example given earlier 48g3B.3.2 Check FCS for the example given earlier
34、. 48g3B.3.3 The transmitter code . 48g3B.3.4 The receiver code . 48g3B.3.5 Reversed CRC table . 49g3Annex C (informative): Change History 50g3History 51g3ETSI ETSI TS 127 010 V15.0.0 (2018-07)63GPP TS 27.010 version 15.0.0 Release 15Foreword This Technical Specification (TS) has been produced by the
35、 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 contents of the present document, it will be re-released by the TSG with an identifying change of rele
36、ase 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 document under change control. y the second digit is incremented for all changes of substance, i.e.
37、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 in the present document operates between an UE and a TE and allows a number of simultaneous sessions
38、 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 status, GPRS, USSD etc. This permits, for example, SMS and CBS to be transferred to a TE when a data c
39、onnection 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 complete system to be partitioned in a flexible way between a UE and TE. The design of the multiplexer is
40、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 very important functionality such as power saving control and priorities. It is also specially desig
41、ned 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 option is not in accordance with HDLC. In the basic option, the multiplexer does not make use of any tr
42、ansparency 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 operate over links which use DC1/DC3 (XON/XOFF) flow control. The advanced option also may include error
43、-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 mechanism (byte stuffing) can not be implemented in the UE. If an UE supports the HDLC transparency
44、 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-recovery option should be used in situations where the link is subject to errors. The multiplexer is
45、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 multiplexer is optional, but when supported, it is activated with the AT+CMUX command described in 3GPP TS 27.
46、007 4. ETSI ETSI TS 127 010 V15.0.0 (2018-07)73GPP TS 27.010 version 15.0.0 Release 151 Scope The scope of the present document is to define a multiplexing protocol between a UE and a TE. The multiplexing protocol can be used to send any data, for instance voice, SMS, USSD, fax etc. The present docu
47、ment 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 the present document. References are either specific (identified by date of publication, edition numb
48、er, 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 document (including a GSM document), a non-specific reference implicitly refers to the latest version
49、 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 link 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 for 3GPP Specifications“. 6 3GPP TS 46.021: “Half rate speech; Su
