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1、 ETSI EN 300 175-4 V2.1.1 (2007-08) European Standard (Telecommunications series) Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 4: Data Link Control (DLC) layer ETSI ETSI EN 300 175-4 V2.1.1 (2007-08) 2 Reference REN/DECT-000241-4 Keywords DECT, IMT-2000, mobility,
2、 radio, TDD, TDMA 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 enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the pres
3、ent document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case
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6、 by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2007. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHO
7、N logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI EN 300 175-4 V2.1.1 (2007-08) 3 Contents Intellectual Property Rights11 Foreword.11 1
8、Scope12 2 References13 3 Definitions, symbols and abbreviations .14 3.1 Definitions14 3.2 Symbols14 3.3 Abbreviations.14 4 Data Link Control (DLC) layer overview16 4.1 General.16 4.2 C-plane services .16 4.3 U-plane services.17 4.4 Lower Layer Management Entity (LLME)20 5 C-plane service characteris
9、tics.20 5.1 Data link service (LAPC+Lc).20 5.1.1 General20 5.1.2 LAPC types of operation 21 5.1.3 Establishment of information transfer modes.21 5.1.3.1 Data Link Identifier (DLI) 21 5.1.3.2 LAPC states.21 5.2 Broadcast service (Lb)22 6 Frame structures for C-plane services23 6.1 Data link service f
10、rame structure23 6.1.1 General frame structure 23 6.1.2 Lc frame delimiting and transparency 24 6.1.3 Transmission order .24 6.1.4 Routing to logical channels.24 6.1.4.1 CF/CLF logical channel24 6.1.4.2 CS/CLS logical channel25 6.1.5 Invalid frames.25 6.2 Broadcast service frame structure.26 6.2.1 S
11、tandard frame structure.26 6.2.2 Extended frame structure26 7 Elements of procedures and formats of fields for C-plane peer-to-peer communication.27 7.1 General.27 7.2 Address field formats .27 7.3 Address field parameters27 7.3.1 REServed bit (RES)27 7.3.2 Command Response (C/R) bit27 7.3.3 SAPI fi
12、eld.27 7.3.4 New Link Flag (NLF) bit28 7.3.5 LLN-field28 7.3.6 Data Link Identifiers (DLI).28 7.4 Control field formats28 7.5 Control field parameters.29 7.5.1 Poll/Final (P/F) bit29 7.5.2 Multiple frame operation variables and sequence numbers29 7.5.2.1 Modulus 29 7.5.2.2 Send state Variable V(S).2
13、9 7.5.2.3 Acknowledge state Variable V(A)30 7.5.2.4 Send sequence Number N(S) 30 7.5.2.5 Receive state Variable V(R)30 ETSI ETSI EN 300 175-4 V2.1.1 (2007-08) 4 7.5.2.6 Receive sequence Number N(R).30 7.5.3 Unacknowledged operation variables and sequence numbers30 7.5.4 Supervisory and Unnumbered fu
14、nction bits S and U30 7.6 Length indicator field format30 7.7 Length indicator field parameters.31 7.7.1 Length indicator field extension bit (N)31 7.7.2 More data bit (M)31 7.7.3 Length parameter (LI).31 7.7.4 Extended length parameter (LJJ) .32 7.7.5 Reserved bit (RES) .32 7.8 Fill field format 32
15、 7.9 Checksum field format.32 7.10 Checksum field parameters 32 7.11 Commands and responses 33 7.11.1 Information (I) command34 7.11.2 Receive Ready (RR) command/response34 7.11.3 Receive Not Ready (RNR) command/response35 7.11.4 REJect (REJ) command/response.35 7.11.5 Set Asynchronous Balanced Mode
16、 (SABM) command35 7.11.6 Disconnect Mode (DM) response.35 7.11.7 Unnumbered Information (UI) command.35 7.11.8 DISConnect (DISC) command.36 7.11.9 Unnumbered ACK (UA) response36 8 Primitives .36 8.1 Primitive types36 8.2 Primitives to the MAC layer (lower layer).36 8.3 Primitives to the NWK layer (h
17、igher layer) .36 8.3.1 Parameter definitions37 8.3.2 S-SAP primitives38 8.3.2.1 DL_ESTABLISH primitive 38 8.3.2.2 DL_RELEASE primitive38 8.3.2.3 DL_DATA primitive.39 8.3.2.4 DL_UNIT_DATA primitive.39 8.3.2.5 DL_SUSPEND primitive39 8.3.2.6 DL_RESUME primitive39 8.3.2.7 DL_ENC_KEY primitive40 8.3.2.8
18、DL_ENCRYPT primitive40 8.3.2.9 DL_SERVICE_MOD primitive40 8.3.3 B-SAP primitives40 8.3.3.1 DL_BROADCAST primitive41 8.3.3.2 DL_EXPEDITED primitive41 8.4 Primitives to the interworking unit.41 8.4.1 Parameter definitions41 8.4.2 LUX-SAP primitives .42 8.4.2.1 DL_U_DATA primitive42 8.4.2.2 DL_U_UNIT_D
19、ATA primitive 42 8.4.2.3 DL_U_ERROR primitive42 9 C-plane peer-to-peer procedures43 9.1 General.43 9.2 Point to point acknowledged operation43 9.2.1 Procedure for the use of the P/F bit 43 9.2.1.1 Class A acknowledged information transfer .43 9.2.1.2 Class B acknowledged information transfer .44 9.2
20、.2 Use of LLN.44 9.2.2.1 Class A operation44 9.2.2.2 Class B operation44 9.2.3 Link establishment and information transfer in class A operation44 9.2.3.1 Establishing class A operation44 9.2.3.2 Class A acknowledged information transfer .45 9.2.3.3 Transmission of class A I-frames45 ETSI ETSI EN 300
21、 175-4 V2.1.1 (2007-08) 5 9.2.3.4 Reception of class A I-frames.46 9.2.3.5 Receiving acknowledgements.46 9.2.3.6 Waiting for acknowledgement46 9.2.3.7 Release of class A operation.47 9.2.3.8 Re-establishment of class A operation47 9.2.4 Establishing class B multiple frame operation47 9.2.4.1 Overvie
22、w.47 9.2.4.2 Class B multiple frame establishment procedures.48 9.2.4.3 Class B LLN assignment procedures49 9.2.4.3.1 PT establishment .49 9.2.4.3.2 FT establishment .50 9.2.5 Link maintenance and information transfer in class B multiple frame operation.50 9.2.5.1 Transmitting I-frames50 9.2.5.2 Rec
23、eiving I-frames51 9.2.5.2.1 P bit set to 1.51 9.2.5.2.2 P bit set to 0.51 9.2.5.3 Sending and receiving acknowledgements51 9.2.5.3.1 Sending acknowledgements 51 9.2.5.3.2 Receiving acknowledgements .51 9.2.5.4 Receiving REJ-frames.52 9.2.5.5 Receiving RNR-frames.53 9.2.5.6 LAPC own receiver busy con
24、dition54 9.2.5.7 Waiting acknowledgement54 9.2.5.8 Appropriate supervisory frame55 9.2.6 Release of class B multiple frame operation.55 9.2.7 Link suspension and resumption.56 9.2.7.1 Link suspension.56 9.2.7.1.1 Class B acknowledged suspend.56 9.2.7.1.2 Unacknowledged suspend .57 9.2.7.2 Class B li
25、nk resumption58 9.2.7.3 Connection handover 59 9.2.7.3.1 Class A connection handover60 9.2.7.3.2 Class B connection handover 61 9.2.7.3.3 Expiry of connection handover timer61 9.2.8 Re-establishment of class B multi-frame operation61 9.2.8.1 Criteria for re-establishment61 9.2.8.2 Procedure 62 9.2.9
26、 Exception handling.62 9.2.9.1 General62 9.2.9.2 Class B exception condition reporting and recovery.63 9.2.9.2.1 N(S) sequence error.63 9.2.9.2.2 N(R) sequence error 63 9.2.9.2.3 Timer recovery condition63 9.2.9.2.4 Collision of identical transmitted and received commands.63 9.3 Unacknowledged opera
27、tion64 9.3.1 Use of LLN for unacknowledged information transfer.64 9.3.2 Class U link establishment64 9.3.3 Unacknowledged information transfer64 9.3.3.1 Transmission of unacknowledged information.64 9.3.3.2 Reception of unacknowledged information 64 9.3.4 Unacknowledged release 64 9.4 Broadcast ope
28、ration65 9.4.1 Normal operation65 9.4.1.1 Procedure in the Fixed radio Termination (FT) 65 9.4.1.2 Procedure in the Portable radio Termination (PT)65 9.4.2 Expedited operation65 9.4.2.1 Procedure in the Fixed radio Termination (FT) 65 9.4.2.2 Procedure in the Portable radio Termination (PT)65 9.5 MA
29、C layer interfaces .66 9.5.1 MC-SAP .66 9.5.1.1 C-plane overview66 9.5.1.2 C-plane service data procedures66 ETSI ETSI EN 300 175-4 V2.1.1 (2007-08) 6 9.5.1.3 U-plane service data67 9.5.2 MB-SAP .67 9.5.2.1 C-plane service data procedures67 9.5.2.2 U-plane service data67 9.5.3 MA-SAP.68 9.5.3.1 Over
30、view.68 9.5.3.2 Service data procedures.68 10 Management procedures.68 10.1 Lower Layer Management Entity (LLME)68 10.2 MAC connection management.69 10.2.1 MAC connection set-up69 10.2.2 MAC connection release.69 10.2.3 MAC connection modification .69 10.2.4 MAC connection identifiers70 10.2.4.1 Ove
31、rview.70 10.2.4.2 Advanced MAC Connection Identifiers (AMCI)70 10.2.4.3 Basic MAC Connection Identifiers (BMCI).71 10.2.4.4 MAC Connection Endpoint Identifier (MCEI).71 10.2.5 Selection of logical channel (CS or CF).71 10.3 DLC C-plane (LAPC) management.72 10.3.1 Provision of link signature72 10.3.2
32、 Routing of connection oriented links72 10.3.3 Routing of connectionless links73 10.4 DLC U-plane (LUX) management.73 10.4.1 U-plane establishment.73 10.4.2 U-plane release .73 10.4.3 U-plane suspend and resume 73 10.5 Connection handover management 74 10.6 Ciphering management.74 10.6.1 Ciphering m
33、anagement in cases where the NWK layer executes the ciphering related MM procedure 74 10.6.1.1 Providing a key to the MAC layer 74 10.6.1.2 Starting and stopping the ciphering.75 10.6.1.3 Connection handover 75 10.6.2 Ciphering management in cases where the NWK layer does not execute the ciphering r
34、elated MM procedure75 10.7 Broadband data link management75 11 U-plane service characteristics.76 11.1 General.76 11.2 LU1 TRansparent UnProtected service (TRUP)76 11.3 LU2 Frame RELay service (FREL)77 11.3.1 General77 11.3.2 Checksum operation .78 11.3.3 Segmentation and transmission class78 11.3.4
35、 Data transmission79 11.3.4.1 Send side procedure79 11.3.4.2 Receive side procedure .79 11.4 LU3 Frame SWItching service (FSWI)80 11.5 LU4 Forward Error Correction (FEC) service80 11.6 LU5 Basic Rate Adaption service (BRAT)81 11.6.1 Overview 81 11.6.2 Protected service operation.82 11.6.2.1 General8
36、2 11.6.2.2 Data buffering and initial rate adaptation82 11.6.2.3 Multi-channel set multiplexing.83 11.6.2.4 Segmentation of Multiplexed Data Units (MDU).84 11.6.2.5 Frame sequencing and addition of control and fill octets85 11.6.2.6 Frame transmission.86 11.6.3 Unprotected service operation87 11.6.3
37、.1 General87 11.6.3.2 Data buffering and initial rate adaption.87 ETSI ETSI EN 300 175-4 V2.1.1 (2007-08) 7 11.6.3.3 Multi-channel set multiplexing.87 11.6.3.4 Segmentation of MDUs.89 11.6.3.5 Frame transmission.89 11.7 LU6 Secondary Rate AdapTion (SRAT) service .89 11.7.1 General89 11.8 LU16 ESCape
38、 Service (ESC).90 11.8.1 General90 11.9 LU7 64 kbit/s data bearer service.91 11.9.1 General91 11.9.2 Physical layer service91 11.9.3 MAC layer service91 11.9.4 DLC layer service.91 11.9.4.1 Architectural model.91 11.9.4.1.1 Transmit (Tx) frame buffering 92 11.9.4.1.2 Receive (Rx) frame buffering92 1
39、1.9.4.2 Automatic-Repeat-Request (ARQ) and Forward Error Control (FEC).92 11.9.4.2.1 Control field 93 11.9.4.2.2 Information field95 11.9.4.2.3 ARQ checksum96 11.9.4.3 Procedures for normal operation.96 11.9.4.3.1 Establishment and synchronization procedures.96 11.9.4.3.2 Active phase98 11.9.4.3.3 R
40、elease.100 11.9.4.4 Exceptional procedures.100 11.9.4.4.1 Invalid frame condition .100 11.9.4.4.2 Establishment 100 11.9.4.4.3 Transmitting frames.100 11.9.4.4.4 Receiving frames.100 11.9.4.4.5 Sending acknowledgements 101 11.9.4.4.6 Forwarding of received data101 11.9.4.4.7 N(R) sequence error 101
41、11.9.4.4.8 N(O) sequence error101 11.9.4.4.9 N(S) sequence error.102 11.9.4.4.10 Format error.102 11.9.4.4.11 Abnormal release.102 11.9.4.4.12 Implicit reset102 11.9.5 Network layer service.102 11.9.5.1 LCE service.102 11.9.5.2 CC service.102 11.10 LU8 service103 11.10.1 Physical layer service103 11
42、.10.2 MAC layer service103 11.10.3 DLC layer service.103 11.11 LU9 - Unprotected Rate Adaption for V series Equipment (RAVE) Service 103 11.11.1 Overview 103 11.11.1.1 FU9 frame structure 104 11.11.1.1.1 General frame structure.104 11.11.1.1.2 FU9 buffering procedures104 11.11.1.1.3 Connection hando
43、ver.104 11.11.1.1.4 Transmission order105 11.11.2 Alignment signal management .105 11.11.2.1 General105 11.11.2.2 Procedures.105 11.11.3 V.24 Signalling.106 11.11.3.1 General106 11.11.3.2 Transmitter procedures107 11.11.3.3 Receiver procedures107 11.11.4 Rate Coding107 11.11.4.1 General107 11.11.4.2
44、 Transmitter procedures108 11.11.4.3 Receiver procedures108 11.11.5 DECT Independent Clocking (DIC).109 ETSI ETSI EN 300 175-4 V2.1.1 (2007-08) 8 11.11.5.1 General109 11.11.5.2 Measurement of phase differences109 11.11.5.3 Compensation control rules.110 11.11.5.3.1 General 110 11.11.5.3.2 Optimizing
45、 error resilience110 11.11.6 Information field.111 11.11.6.1 General111 11.11.6.2 User data rates.111 11.11.6.3 Information field filling rule .111 11.11.7 Primitives112 11.12 LU10 Enhanced Frame RELay (EFREL) service 113 11.12.1 General113 11.12.2 Segmentation and transmission class113 11.12.3 Data
46、 transmission114 11.12.3.1 Send side procedures.114 11.12.3.2 Receive side procedure .114 11.13 LU11 service115 11.13.1 Physical layer service115 11.13.2 MAC layer service115 11.13.3 DLC layer service.115 12 Frame structures for U-plane services115 12.1 General.115 12.2 FU1 frame structure116 12.2.1
47、 General frame structure 116 12.2.2 FU1 buffering procedures.117 12.2.3 Minimum delay (speech) operation118 12.2.4 Connection handover118 12.2.5 Transmission order .118 12.3 FU2 frame structure118 12.3.1 General frame structure 118 12.3.2 FU2 buffering procedures.119 12.3.3 Connection handover119 12
48、.3.4 Transmission order .119 12.4 FU3 frame structure120 12.4.1 General frame structure 120 12.4.2 FU3 buffering procedures.120 12.4.3 Connection handover121 12.4.4 Transmission order .121 12.5 FU4 frame structure121 12.5.1 General frame structure 121 12.5.2 FU4 buffering procedures.122 12.5.3 Conne
49、ction handover122 12.5.4 Transmission order .122 12.6 FU5 frame structure123 12.6.1 General frame structure 123 12.6.2 FU5 buffering procedures.124 12.6.3 Connection handover124 12.6.4 Transmission order .124 12.7 FU6 frame structure124 12.7.1 General frame structure 124 12.7.2 FU6 buffering procedures.125 12.7.3 Connection handover125 12.7.4 Transmission order .125 12.8 FU7 frame structure125 12.9 FU8 frame structure126 12.10 FU9 frame structure126 12.11 FU10 frame structure126 12.11.1 General frame structure 126 12.11.2 Transmission of FU10c frames.128 12.11.2.1a Inserti
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