1、 ETSI EN 300 175-4 V2.7.1 (2017-11) Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 4: Data Link Control (DLC) layer EUROPEAN STANDARD ETSI ETSI EN 300 175-4 V2.7.1 (2017-11) 2 Reference REN/DECT-00307-4 Keywords DECT, DLC, IMT-2000, mobility, radio, TDD, TDMA ETSI 6
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7、n of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2017. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are trademarks of ETSI registered for the benefit
8、of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSM and the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI EN 300 175-4 V2.7.1 (2017-11) 3 Contents Intellectual Property Rights 13g3Foreword . 13g3Modal v
9、erbs terminology 13g31 Scope 14g32 References 14g32.1 Normative references . 14g32.2 Informative references 15g33 Definitions, symbols and abbreviations . 16g33.1 Definitions 16g33.2 Symbols and abbreviations . 16g34 Data Link Control (DLC) layer overview 19g34.1 General . 19g34.2 C-plane services .
10、 20g34.3 U-plane services . 20g34.4 Lower Layer Management Entity (LLME) 24g35 C-plane service characteristics . 24g35.1 Data link service (LAPC+Lc) . 24g35.1.1 General 24g35.1.2 LAPC types of operation 25g35.1.3 Establishment of information transfer modes . 25g35.1.3.1 Data Link Identifier (DLI) 25
11、g35.1.3.2 LAPC states. 25g35.2 Broadcast service (Lb) 26g36 Frame structures for C-plane services 27g36.1 Data link service frame structure 27g36.1.0 Frame format type FA. 27g36.1.1 General frame structure 27g36.1.2 Lc frame delimiting and transparency 28g36.1.3 Transmission order . 28g36.1.4 Routin
12、g to logical channels . 28g36.1.4.0 General 28g36.1.4.1 CF/CLFlogical channel 29g36.1.4.2 CS/CLSlogical channel 29g36.1.5 Invalid frames . 29g36.2 Broadcast service frame structure. 30g36.2.1 Standard frame structure . 30g36.2.2 Extended frame structure 30g37 Elements of procedures and formats of fi
13、elds for C-plane peer-to-peer communication . 31g37.1 General . 31g37.2 Address field formats . 31g37.3 Address field parameters 31g37.3.1 REServed bit (RES) 31g37.3.2 Command Response (C/R) bit 31g37.3.3 SAPI field . 31g37.3.4 New Link Flag (NLF) bit 32g37.3.5 LLN-field 32g37.3.6 Data Link Identifi
14、ers (DLI) . 32g37.4 Control field formats 33g37.5 Control field parameters . 33g37.5.1 Poll/Final (P/F) bit 33g37.5.2 Multiple frame operation variables and sequence numbers 33g37.5.2.1 Modulus 33g3ETSI ETSI EN 300 175-4 V2.7.1 (2017-11) 4 7.5.2.2 Send state Variable V(S) . 33g37.5.2.3 Acknowledge s
15、tate Variable V(A) 34g37.5.2.4 Send sequence Number N(S) 34g37.5.2.5 Receive state Variable V(R) 34g37.5.2.6 Receive sequence Number N(R) . 34g37.5.3 Unacknowledged operation variables and sequence numbers 34g37.5.4 Supervisory and Unnumbered function bits S and U 34g37.6 Length indicator field form
16、at 34g37.7 Length indicator field parameters . 35g37.7.1 Length indicator field extension bit (N) 35g37.7.2 More data bit (M) 35g37.7.3 Length parameter (LI) . 35g37.7.4 Extended length parameter (LJJ) . 36g37.7.5 Reserved bit (RES) . 36g37.8 Fill field format 36g37.9 Checksum field format . 36g37.1
17、0 Checksum field parameters 36g37.11 Commands and responses 37g37.11.0 General 37g37.11.1 Information (I) command 38g37.11.2 Receive Ready (RR) command/response 38g37.11.3 Receive Not Ready (RNR) command/response 39g37.11.4 REJect (REJ) command/response . 39g37.11.5 Set Asynchronous Balanced Mode (S
18、ABM) command 39g37.11.6 Disconnect Mode (DM) response . 39g37.11.7 Unnumbered Information (UI) command . 39g37.11.8 DISConnect (DISC) command . 40g37.11.9 Unnumbered ACK (UA) response 40g38 Primitives . 40g38.1 Primitive types 40g38.2 Primitives to the MAC layer (lower layer) . 40g38.3 Primitives to
19、 the NWK layer (higher layer) . 41g38.3.0 General 41g38.3.1 Parameter definitions 41g38.3.2 S-SAP primitives 42g38.3.2.0 List of primitives . 42g38.3.2.1 DL_ESTABLISH primitive 42g38.3.2.2 DL_RELEASE primitive 43g38.3.2.3 DL_DATA primitive . 43g38.3.2.4 DL_UNIT_DATA primitive . 43g38.3.2.5 DL_SUSPEN
20、D primitive 43g38.3.2.6 DL_RESUME primitive 44g38.3.2.7 DL_ENC_KEY primitive 44g38.3.2.8 DL_ENCRYPT primitive 44g38.3.2.9 DL_SERVICE_MOD primitive 45g38.3.3 B-SAP primitives 45g38.3.3.0 List of primitives . 45g38.3.3.1 DL_BROADCAST primitive 45g38.3.3.2 DL_EXPEDITED primitive 45g38.4 Primitives to t
21、he interworking unit . 46g38.4.0 General 46g38.4.1 Parameter definitions 46g38.4.2 LUX-SAP primitives . 46g38.4.2.0 List of primitives . 46g38.4.2.1 DL_U_DATA primitive 46g38.4.2.2 DL_U_UNIT_DATA primitive 47g38.4.2.3 DL_U_ERROR primitive 47g39 C-plane peer-to-peer procedures 47g39.1 General . 47g39
22、.2 Point-to-point acknowledged operation 48g3ETSI ETSI EN 300 175-4 V2.7.1 (2017-11) 5 9.2.1 Procedure for the use of the P/F bit 48g39.2.1.1 Class A acknowledged information transfer . 48g39.2.1.2 Class B acknowledged information transfer . 48g39.2.2 Use of LLN . 48g39.2.2.1 Class A operation 48g39
23、.2.2.2 Class B operation 48g39.2.3 Link establishment and information transfer in class A operation 49g39.2.3.1 Establishing class A operation 49g39.2.3.2 Class A acknowledged information transfer . 49g39.2.3.3 Transmission of class A I-frames 50g39.2.3.4 Reception of class A I-frames . 50g39.2.3.5
24、Receiving acknowledgements . 50g39.2.3.6 Waiting for acknowledgement 51g39.2.3.7 Release of class A operation . 51g39.2.3.8 Re-establishment of class A operation 51g39.2.4 Establishing class B multiple frame operation 52g39.2.4.1 Overview. 52g39.2.4.2 Class B multiple frame establishment procedures
25、. 52g39.2.4.3 Class B LLN assignment procedures 53g39.2.4.3.0 General 53g39.2.4.3.1 PT establishment . 54g39.2.4.3.2 FT establishment . 54g39.2.5 Link maintenance and information transfer in class B multiple frame operation . 54g39.2.5.0 General 54g39.2.5.1 Transmitting I-frames 55g39.2.5.2 Receivin
26、g I-frames 55g39.2.5.2.0 General 55g39.2.5.2.1 P bit set to 1 . 55g39.2.5.2.2 P bit set to 0 . 55g39.2.5.3 Sending and receiving acknowledgements 56g39.2.5.3.1 Sending acknowledgements 56g39.2.5.3.2 Receiving acknowledgements . 56g39.2.5.4 Receiving REJ-frames . 56g39.2.5.5 Receiving RNR-frames . 57
27、g39.2.5.6 LAPC own receiver busy condition 58g39.2.5.7 Waiting acknowledgement 59g39.2.5.8 Appropriate supervisory frame 59g39.2.6 Release of class B multiple frame operation . 59g39.2.7 Link suspension and resumption . 60g39.2.7.1 Link suspension . 60g39.2.7.1.0 General 60g39.2.7.1.1 Class B acknow
28、ledged suspend . 60g39.2.7.1.2 Unacknowledged suspend . 61g39.2.7.2 Class B link resumption 62g39.2.7.3 Connection handover 63g39.2.7.3.0 General 63g39.2.7.3.1 Class A connection handover 65g39.2.7.3.2 Class B connection handover 65g39.2.7.3.3 Expiry of connection handover timer 66g39.2.8 Re-establi
29、shment of class B multi-frame operation 66g39.2.8.1 Criteria for re-establishment 66g39.2.8.2 Procedure 66g39.2.9 Exception handling . 67g39.2.9.1 General 67g39.2.9.2 Class B exception condition reporting and recovery . 67g39.2.9.2.0 General 67g39.2.9.2.1 N(S) sequence error . 67g39.2.9.2.2 N(R) seq
30、uence error 68g39.2.9.2.3 Timer recovery condition 68g39.2.9.2.4 Collision of identical transmitted and received commands . 68g39.3 Unacknowledged operation 68g39.3.1 Use of LLN for unacknowledged information transfer . 68g3ETSI ETSI EN 300 175-4 V2.7.1 (2017-11) 6 9.3.2 Class U link establishment 6
31、8g39.3.3 Unacknowledged information transfer 68g39.3.3.1 Transmission of unacknowledged information . 68g39.3.3.2 Reception of unacknowledged information 68g39.3.4 Unacknowledged release 69g39.4 Broadcast operation 69g39.4.1 Normal operation 69g39.4.1.1 Procedure in the Fixed radio Termination (FT)
32、69g39.4.1.2 Procedure in the Portable radio Termination (PT) 69g39.4.2 Expedited operation 69g39.4.2.1 Procedure in the Fixed radio Termination (FT) 69g39.4.2.2 Procedure in the Portable radio Termination (PT) 70g39.5 MAC layer interfaces . 70g39.5.1 MC-SAP . 70g39.5.1.1 C-plane overview 70g39.5.1.2
33、 C-plane service data procedures 70g39.5.1.3 U-plane service data 71g39.5.2 MB-SAP . 71g39.5.2.0 General 71g39.5.2.1 C-plane service data procedures 71g39.5.2.2 U-plane service data 72g39.5.3 MA-SAP . 72g39.5.3.1 Overview . 72g39.5.3.2 Service data procedures . 72g310 Management procedures. 72g310.1
34、 Lower Layer Management Entity (LLME) 72g310.2 MAC connection management . 73g310.2.0 General 73g310.2.1 MAC connection set-up 73g310.2.2 MAC connection release . 73g310.2.3 MAC connection modification . 74g310.2.4 MAC connection identifiers 74g310.2.4.1 Overview . 74g310.2.4.2 Advanced MAC Connecti
35、on Identifiers (AMCI) 75g310.2.4.3 Basic MAC Connection Identifiers (BMCI) . 75g310.2.4.4 MAC Connection Endpoint Identifier (MCEI) . 75g310.2.5 Selection of logical channel (CSor CF) . 75g310.3 DLC C-plane (LAPC) management . 76g310.3.0 General 76g310.3.1 Provision of link signature 76g310.3.2 Rout
36、ing of connection oriented links 77g310.3.3 Routing of connectionless links 77g310.4 DLC U-plane (LUX) management . 77g310.4.0 General 77g310.4.1 U-plane establishment. 77g310.4.2 U-plane release . 78g310.4.3 U-plane suspend and resume 78g310.5 Connection handover management 78g310.6 Ciphering manag
37、ement . 79g310.6.1 Ciphering management in cases where the NWK layer executes the ciphering related MM procedure 79g310.6.1.0 General 79g310.6.1.1 Providing a key to the MAC layer 79g310.6.1.2 Starting and stopping the ciphering . 79g310.6.1.3 Connection handover 79g310.6.2 Ciphering management in c
38、ases where the NWK layer does not execute the ciphering related MM procedure 80g310.7 Broadband data link management 80g311 U-plane service characteristics . 80g311.1 General . 80g311.2 LU1 TRansparent UnProtected service (TRUP) 81g3ETSI ETSI EN 300 175-4 V2.7.1 (2017-11) 7 11.3 LU2 Frame RELay serv
39、ice (FREL) 82g311.3.1 General 82g311.3.2 Checksum operation . 83g311.3.3 Segmentation and transmission class 83g311.3.4 Data transmission 84g311.3.4.1 Send side procedure 84g311.3.4.2 Receive side procedure . 84g311.4 LU3 Frame SWItching service (FSWI) 84g311.5 LU4 Forward Error Correction (FEC) ser
40、vice 85g311.6 LU5 Basic RATe adaption service (BRAT) . 85g311.6.1 Overview 85g311.6.2 Protected service operation . 86g311.6.2.1 General 86g311.6.2.2 Data buffering and initial rate adaptation 87g311.6.2.3 Multi-channel set multiplexing . 88g311.6.2.4 Segmentation of Multiplexed Data Units (MDU) . 8
41、9g311.6.2.5 Frame sequencing and addition of control and fill octets 90g311.6.2.6 Frame transmission . 91g311.6.3 Unprotected service operation 91g311.6.3.1 General 91g311.6.3.2 Data buffering and initial rate adaption . 92g311.6.3.3 Multi-channel set multiplexing . 92g311.6.3.4 Segmentation of MDUs
42、 . 93g311.6.3.5 Frame transmission . 93g311.7 LU6 Secondary RATe adaption (SRAT) service . 94g311.7.1 General 94g311.8 LU16 ESCape Service (ESC) . 95g311.8.1 General 95g311.9 LU7 64 kbit/s data bearer service . 95g311.9.1 General 95g311.9.2 Physical layer service 95g311.9.3 MAC layer service 96g311.
43、9.4 DLC layer service . 96g311.9.4.1 Architectural model . 96g311.9.4.1.0 General 96g311.9.4.1.1 Transmit (Tx) frame buffering 96g311.9.4.1.2 Receive (Rx) frame buffering 96g311.9.4.2 Automatic-Repeat-Request (ARQ) and Forward Error Control (FEC) . 97g311.9.4.2.0 General 97g311.9.4.2.1 Control field
44、 98g311.9.4.2.2 Information field 100g311.9.4.2.3 ARQ checksum 101g311.9.4.3 Procedures for normal operation . 101g311.9.4.3.0 General 101g311.9.4.3.1 Establishment and synchronization procedures . 101g311.9.4.3.2 Active phase 103g311.9.4.3.3 Release. 105g311.9.4.4 Exceptional procedures . 105g311.9
45、.4.4.0 General 105g311.9.4.4.1 Invalid frame condition . 105g311.9.4.4.2 Establishment 105g311.9.4.4.3 Transmitting frames . 105g311.9.4.4.4 Receiving frames . 105g311.9.4.4.5 Sending acknowledgements 105g311.9.4.4.6 Forwarding of received data 105g311.9.4.4.7 N(R) sequence error 106g311.9.4.4.8 N(O
46、) sequence error 106g311.9.4.4.9 N(S) sequence error . 106g311.9.4.4.10 Format error . 107g311.9.4.4.11 Abnormal release . 107g311.9.4.4.12 Implicit reset 107g311.9.5 Network layer service . 107g3ETSI ETSI EN 300 175-4 V2.7.1 (2017-11) 8 11.9.5.1 LCE service . 107g311.9.5.2 CC service. 107g311.10 LU
47、8 service 107g311.10.0 General 107g311.10.1 Physical layer service 107g311.10.2 MAC layer service 108g311.10.3 DLC layer service . 108g311.11 LU9 - Unprotected Rate Adaption for V series Equipment (RAVE) Service 108g311.11.1 Overview 108g311.11.1.0 General 108g311.11.1.1 FU9 frame structure 109g311.
48、11.1.1.1 General frame structure . 109g311.11.1.1.2 FU9 buffering procedures 109g311.11.1.1.3 Connection handover . 109g311.11.1.1.4 Transmission order 109g311.11.2 Alignment signal management . 110g311.11.2.1 General 110g311.11.2.2 Procedures . 110g311.11.3 V.24 Signalling . 111g311.11.3.1 General
49、111g311.11.3.2 Transmitter procedures 112g311.11.3.3 Receiver procedures 112g311.11.4 Rate Coding 112g311.11.4.1 General 112g311.11.4.2 Transmitter procedures 113g311.11.4.3 Receiver procedures 113g311.11.5 DECT Independent Clocking (DIC) . 114g311.11.5.1 General 114g311.11.5.2 Measurement of phase differences 114g311.11.5.3 Compensation control rules . 115g311.11.5.3.1 General 115g311.11.5.3.2 Optimizing error resilience 115g311.11.6 Information field . 116g311.11.6.1 General 116g311.11.6.2 User data rates . 116g311.11.6.3 Information field filling rule . 116g311.11.7 Primitiv
