1、 ETSI TS 136 323 V14.5.0 (2018-01) LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification (3GPP TS 36.323 version 14.5.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 136 323 V14.5.0 (2018-01)13GPP TS 36.323 version 14.5.0 Release 14Referen
2、ce RTS/TSGR-0236323ve50 Keywords LTE 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 The presen
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9、4.5.0 Release 14Intellectual Property Rights Essential patents 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 members and non-members, and can be found in ETSI
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15、odal 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 Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ ar
16、e NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 136 323 V14.5.0 (2018-01)33GPP TS 36.323 version 14.5.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g32 References 7g33 Definitions and abbrevia
17、tions . 8g33.1 Definitions 8g33.2 Abbreviations . 8g34 General . 9g34.1 Introduction 9g34.2 PDCP architecture 9g34.2.1 PDCP structure . 9g34.2.2 PDCP entities 10g34.3 Services 11g34.3.1 Services provided to upper layers . 11g34.3.2 Services expected from lower layers 11g34.4 Functions 12g34.5 Data a
18、vailable for transmission 12g35 PDCP procedures . 13g35.1 PDCP Data Transfer Procedures 13g35.1.1 UL Data Transfer Procedures . 13g35.1.2 DL Data Transfer Procedures . 14g35.1.2.1 Procedures for DRBs. 14g35.1.2.1.1 Void . 14g35.1.2.1.2 Procedures for DRBs mapped on RLC AM when the reordering functio
19、n is not used . 14g35.1.2.1.2a RN procedures for DRBs mapped on RLC AM 15g35.1.2.1.3 Procedures for DRBs mapped on RLC UM 16g35.1.2.1.3a RN procedures for DRBs mapped on RLC UM 16g35.1.2.1.4 Procedures for DRBs mapped on RLC AM and for LWA bearers when the reordering function is used 16g35.1.2.1.4.1
20、 Procedures when a PDCP PDU is received from the lower layers 16g35.1.2.1.4.2 Procedures when t-Reordering expires 18g35.1.2.1.4.3 Procedures when the value of t-Reordering is reconfigured 18g35.1.2.2 Procedures for SRBs . 18g35.1.3 SL Data Transmission Procedures 19g35.1.4 SL Data Reception Procedu
21、res . 19g35.2 Re-establishment procedure . 19g35.2.1 UL Data Transfer Procedures . 19g35.2.1.1 Procedures for DRBs mapped on RLC AM 19g35.2.1.2 Procedures for DRBs mapped on RLC UM 20g35.2.1.3 Procedures for SRBs . 20g35.2.2 DL Data Transfer Procedures . 20g35.2.2.1 Procedures for DRBs mapped on RLC
22、 AM while the reordering function is not used . 20g35.2.2.1a Procedures for DRBs mapped on RLC AM while the reordering function is used . 20g35.2.2.2 Procedures for DRBs mapped on RLC UM 21g35.2.2.3 Procedures for SRBs . 21g35.2.2.4 Procedures for LWA bearers . 21g35.3 PDCP Status Report . 21g35.3.1
23、 Transmit operation 21g35.3.2 Receive operation . 22g35.4 PDCP discard . 22g35.5 Header Compression and Decompression 22g3ETSI ETSI TS 136 323 V14.5.0 (2018-01)43GPP TS 36.323 version 14.5.0 Release 145.5.1 Supported header compression protocols and profiles 22g35.5.2 Configuration of header compres
24、sion . 23g35.5.3 Protocol parameters 23g35.5.4 Header compression 24g35.5.5 Header decompression 24g35.5.6 PDCP Control PDU for interspersed ROHC feedback packet 24g35.5.6.1 Transmit Operation . 24g35.5.6.2 Receive Operation . 24g35.6 Ciphering and Deciphering. 24g35.6.0 General 24g35.6.1 SL Cipheri
25、ng and Deciphering for one-to-many communication . 25g35.6.2 SL Ciphering and Deciphering for one-to-one communication 25g35.6.3 Handling of LWA end-marker PDCP Control PDU . 25g35.6.3.1 Transmit operation 25g35.6.3.2 Receive Operation . 26g35.7 Integrity Protection and Verification 26g35.8 Handling
26、 of unknown, unforeseen and erroneous protocol data 27g35.9 PDCP Data Recovery procedure 27g35.10 Status report for LWA 27g35.10.1 Transmit operation 27g35.10.2 LWA status report . 28g35.10.3 Receive operation . 28g36 Protocol data units, formats and parameters . 28g36.1 Protocol data units 28g36.1.
27、1 PDCP Data PDU . 28g36.1.2 PDCP Control PDU 29g36.2 Formats . 29g36.2.1 General 29g36.2.2 Control plane PDCP Data PDU 29g36.2.3 User plane PDCP Data PDU with long PDCP SN (12 bits) . 29g36.2.4 User plane PDCP Data PDU with short PDCP SN (7 bits) 30g36.2.5 PDCP Control PDU for interspersed ROHC feed
28、back packet 30g36.2.6 PDCP Control PDU for PDCP status report . 30g36.2.7 Void 31g36.2.8 RN user plane PDCP Data PDU with integrity protection 32g36.2.9 User plane PDCP Data PDU with extended PDCP SN (15 bits) 32g36.2.10 User plane PDCP Data PDU for SLRB 32g36.2.11 User plane PDCP Data PDU with furt
29、her extended PDCP SN (18 bits) 33g36.2.12 PDCP Control PDU for LWA status report 34g36.2.13 PDCP Control PDU for LWA end-marker packet 35g36.3 Parameters 36g36.3.1 General 36g36.3.2 PDCP SN 36g36.3.3 Data . 36g36.3.4 MAC-I 36g36.3.5 COUNT 36g36.3.6 R . 37g36.3.7 D/C 37g36.3.8 PDU type 37g36.3.9 FMS
30、37g36.3.10 Bitmap 37g36.3.11 Interspersed ROHC feedback packet 38g36.3.12 PGK Index 38g36.3.13 PTK Identity . 38g36.3.14 SDU Type . 38g36.3.15 KD-sessID . 38g36.3.16 NMP 39g36.3.17 HRW . 39g36.3.18 P 39g36.3.19 LSN . 39g3ETSI ETSI TS 136 323 V14.5.0 (2018-01)53GPP TS 36.323 version 14.5.0 Release 14
31、7 Variables, constants and timers 39g37.1 State variables 39g37.2 Timers 40g37.3 Constants 40g3Annex A (informative): Change history . 42g3History 45g3ETSI ETSI TS 136 323 V14.5.0 (2018-01)63GPP TS 36.323 version 14.5.0 Release 14Foreword This Technical Specification has been produced by the 3rdGene
32、ration 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 release date
33、 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. technica
34、l enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 136 323 V14.5.0 (2018-01)73GPP TS 36.323 version 14.5.0 Release 141 Scope The present document provides the description of the Packet Data Conv
35、ergence Protocol (PDCP). 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 number, version number, etc.) or non specific. For a speci
36、fic 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 of that document in the same Release as the present d
37、ocument. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 36.300: “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description“. 3 3GPP TS 36.331: “Evolved Universal Terrestrial Radio Access (E-UTRA) Radio
38、 Resource Control (RRC); Protocol Specification“. 4 3GPP TS 36.321: “Evolved Universal Terrestrial Radio Access (E-UTRA) Medium Access Control (MAC) protocol specification“. 5 3GPP TS 36.322: “Evolved Universal Terrestrial Radio Access (E-UTRA) Radio Link Control (RLC) protocol specification“. 6 3GP
39、P TS 33.401: “3GPP System Architecture Evolution: Security Architecture“. 7 IETF RFC 5795: “The RObust Header Compression (ROHC) Framework“. 8 IETF RFC 6846: “RObust Header Compression (ROHC): A Profile for TCP/IP (ROHC-TCP)“. 9 IETF RFC 3095: “RObust Header Compression (ROHC): Framework and four pr
40、ofiles: RTP, UDP, ESP and uncompressed“. 10 IETF RFC 3843: “RObust Header Compression (ROHC): A Compression Profile for IP“. 11 IETF RFC 4815: “RObust Header Compression (ROHC): Corrections and Clarifications to RFC 3095“. 12 IETF RFC 5225: “RObust Header Compression (ROHC) Version 2: Profiles for R
41、TP, UDP, IP, ESP and UDP Lite”. 13 3GPP TS 33.303: “Proximity-based Services; Security Aspects”. 14 3GPP TS 23.303: “Proximity-based Services; Stage 2”. 15 3GPP TS 36.360: “Evolved Universal Terrestrial Radio Access (E-UTRA); LTE-WLAN Aggregation Adaptation Protocol (LWAAP) specification”. ETSI ETSI
42、 TS 136 323 V14.5.0 (2018-01)83GPP TS 36.323 version 14.5.0 Release 143 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the def
43、inition of the same term, if any, in TR 21.905 1. NB-IoT: NB-IoT allows access to network services via E-UTRA with a channel bandwidth limited to 200 kHz. Split bearer: in dual connectivity, a bearer whose radio protocols are located in both the MeNB and the SeNB to use both MeNB and SeNB resources.
44、 LWA bearer: in LTE-WLAN Aggregation, a bearer whose radio protocols are located in both the eNB and the WLAN to use both eNB and WLAN resources. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 1 and the following apply. An abbreviation defined in the
45、 present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 1. AM Acknowledged Mode ARP Address Resolution Protocol CID Context IdentifierDRB Data Radio Bearer carrying user plane data EPS Evolved Packet System E-UTRA Evolved UMTS Terrestrial Radio Access E-
46、UTRAN Evolved UMTS Terrestrial Radio Access Network eNB E-UTRAN Node B FMS First missing PDCP SN HFN Hyper Frame Number HRW Highest Received PDCP SN on WLAN IETF Internet Engineering Task Force IP Internet Protocol L2 Layer 2 (data link layer) L3 Layer 3 (network layer) LWA LTE-WLAN AggregationMAC M
47、edium Access Control MAC-I Message Authentication Code for Integrity MCG Master Cell Group NB-IoT Narrow Band Internet of Things NMP Number of Missing PDCP SDUs PDCP Packet Data Convergence Protocol PDU Protocol Data Unit PEK ProSe Encryption Key PGK ProSe Group Key ProSe Proximity-based Services PT
48、K ProSe Traffic Key R Reserved RB Radio BearerRFC Request For Comments RLC Radio Link ControlRN Relay Node ROHC RObust Header Compression RRC Radio Resource Control RTP Real Time Protocol SAP Service Access PointSCG Secondary Cell Group SDU Service Data Unit ETSI ETSI TS 136 323 V14.5.0 (2018-01)93G
49、PP TS 36.323 version 14.5.0 Release 14SLRB Sidelink Radio Bearer carrying Sidelink Communication or V2X sidelink communication data SN Sequence Number SRB Signalling Radio Bearer carrying control plane data TCP Transmission Control Protocol UDP User Datagram Protocol UE User Equipment UM Unacknowledged Mode X-MAC Computed MAC-I 4 General 4.1 Introduction The present document describes the functionality of the PDCP. Functionality specified for the UE equally applies to the RN for functionality necessary for the RN. There is also function
