ETSI TS V ( ) Technical Specification

Transcription

1 TS V ( ) Technical Specification Digital cellular telecommunications system (Phase 2+); General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station System (BSS) interface; Radio Link Control / Medium Access Control (RLC/MAC) protocol (3GPP TS version Release 5) GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS R

2 1 TS V ( ) Reference RTS/TSGG v5l0 Keywords GSM 650 Route des Lucioles F Sophia Antipolis Cedex - FRANCE Tel.: Fax: Siret N NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: 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 of dispute, the reference shall be the printing on printers of the PDF version kept on a specific network drive within 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 documents is available at If you find errors in the present document, please send your comment to one of the following services: Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute All rights reserved. DECT TM, PLUGTESTS TM, UMTS TM, TIPHON TM, the TIPHON logo and the logo are Trade Marks of registered for the benefit of its Members. 3GPP TM is a Trade Mark of registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of currently being 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 Association.

3 2 TS V ( ) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to. The information pertaining to these essential IPRs, if any, is publicly available for members and non-members, and can be found in SR : "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to in respect of standards", which is available from the Secretariat. Latest updates are available on the Web server ( Pursuant to the IPR Policy, no investigation, including IPR searches, has been carried out by. No guarantee can be given as to the existence of other IPRs not referenced in SR (or the updates on the Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by 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 being references to the corresponding deliverables. The cross reference between GSM, UMTS, 3GPP and identities can be found under

4 3 TS V ( ) Contents Intellectual Property Rights...2 Foreword...2 Foreword Scope General Related documents Use of logical control channels Use of logical traffic channels Conventions References Definitions, abbreviations and symbols Definitions Abbreviations Symbols Layered overview of radio interface Layer services Layer functions Service primitives Services required from lower layers Introduction to the Medium Access Control (MAC) procedures General Multiplexing principles Temporary Block Flow Temporary Flow Identity Uplink State Flag Medium Access modes a Multiplexing of GPRS and EGPRS TBF mode capable mobile stations Packet idle mode Packet transfer mode a Dual transfer mode General procedures in packet idle and packet transfer modes Mobile station side Cell reselection a Network Assisted Cell Change a.1 Neighbour Cell System Information Distribution a.2 CCN Mode b Release of RR connection b.1 General b.2 Continuation of PBCCH information b.3 Continuation of BCCH information b.4 Receipt of PSI14 message in dual transfer mode System information on PBCCH Supervision of PBCCH_CHANGE_MARK and update of PBCCH information Replacement of PBCCH PSI1 reception failure System information on BCCH Supervision of BCCH_CHANGE_MARK and update of BCCH information Establishment of PBCCH SI13 reception failure Acquisition of system information on the broadcast channel Consistent sets of system information messages Suspension of operation to receive system information Request for acquisition of system information...32

5 4 TS V ( ) Discontinuous reception (DRX) Page mode procedures on PCCCH Frequency Parameters TLLI management Packet Flow Context (PFC) Network side System Information broadcasting System information on PBCCH System information on BCCH System information on PACCH (and other logical channels) a Rules for (P)SI information distribution within Packet Serving Cell Data messages Consistent sets of system information messages Paging Network Assisted Cell Change Measurement reports General Network Control (NC) measurement reporting Extended measurement (EM) reporting Additional measurement and reporting parameters Deriving the 3G Neighbour Cell list from the 3G Neighbour Cell description Deriving BA(GPRS) and the GSM Neighbour Cell list Deriving the Neighbour Cell list from the GSM Neighbour Cell list and the 3G Neighbour Cell list GPRS Real Time Differences GPRS Report Priority Descriptions GPRS Measurement Parameters and GPRS 3G Measurement Parameters The GPRS 3G Cell Reselection list Paging procedures Paging procedure for RR connection establishment Paging initiation using paging subchannel on CCCH Paging initiation using paging subchannel on PCCCH Paging initiation using PACCH Paging response Paging procedure for downlink packet transfer Paging procedure using paging subchannel on CCCH Paging using paging subchannel on PCCCH Paging response Medium Access Control (MAC) procedures on PCCCH General TBF establishment initiated by the mobile station on PCCCH Permission to access the network Initiation of a TBF establishment Initiation of the packet access procedure Access persistence control on PRACH Packet assignment procedure On receipt of a PACKET CHANNEL REQUEST or EGPRS PACKET CHANNEL REQUEST message a Acquisition of MS Radio Access Capability information within EGPRS TBF establishment procedure Packet access queuing notification procedure Packet polling procedure Packet access reject procedure Contention resolution at one phase access a RLC/MAC procedures during contention resolution One phase packet access completion Timing Advance PFC procedure at one phase access TBF establishment using two phase access Initiation of the Packet resource request procedure Packet resource assignment for uplink procedure...56

6 5 TS V ( ) On receipt of a PACKET RESOURCE REQUEST message Contention resolution at two phase access Two phase packet access completion Timing Advance Abnormal cases TBF establishment initiated by the network on PCCCH Entering the packet transfer mode Packet downlink assignment procedure Packet downlink assignment procedure completion Packet polling procedure Abnormal cases Procedure for measurement report sending in packet idle mode Measurement report sending procedure initiated on PCCCH On receipt of a PACKET CHANNEL REQUEST message On receipt of a PACKET UPLINK ASSIGNMENT message On receipt of a PACKET ACCESS REJECT message Abnormal cases Measurement report sending procedure initiated on CCCH Cell Change Order procedures in Packet Idle mode Cell Change Order procedure initiated on PCCCH Cell Change Order procedure initiated on CCCH Measurement Order procedures in Packet Idle mode Measurement Order procedures initiated on PCCCH Measurement Order procedures initiated on CCCH Packet Pause procedure Packet pause procedure initiated on PCCCH On receipt of a PACKET CHANNEL REQUEST message On receipt of a PACKET UPLINK ASSIGNMENT message On receipt of a PACKET ACCESS REJECT message Abnormal cases Packet pause procedure initiated on CCCH Medium Access Control (MAC) Procedures in Packet Transfer Mode General Transfer of RLC data blocks Medium access mode Uplink RLC data block transfer Dynamic allocation uplink RLC data block transfer PACCH operation Resource Reallocation for Uplink Establishment of Downlink TBF Extended Dynamic Allocation uplink RLC data block transfer Uplink PDCH Allocation PACCH operation Neighbour cell power measurements Shifted USF operation (void) a Exclusive allocation RLC data block transfer a.1 General a.2 Radio link failure a.3 (void) a.4 PACCH operation a.5 Resource Reallocation for Uplink a.5.1 General a.5.2 Change of service demand a.5.3 Reallocation of radio resources for an uplink TBF a.5.4 Rejection of new service demand a.5.5 Abnormal cases a.6 Establishment of Downlink TBF a.6.1 General a.6.2 Abnormal cases Network initiated release of uplink TBF...77

7 6 TS V ( ) Abnormal cases Change of RLC mode in extended uplink TBF mode General Change of RLC mode Abnormal cases Downlink RLC data block transfer Downlink RLC data block transfer Abnormal cases Polling for Packet Downlink Ack/Nack (void) Resource Reassignment for Downlink Abnormal cases Establishment of uplink TBF Abnormal cases (void) (void) Network initiated abnormal release of downlink TBF (void) Packet PDCH Release Procedure for measurement report sending in Packet Transfer mode Network controlled cell reselection procedure Network controlled cell reselection completion b Network controlled cell reselection completion (UTRAN target Cell) Abnormal cases Measurement Order procedures in Packet Transfer mode PACKET CONTROL ACKNOWLEDGEMENT Abnormal cases General Abnormal release without retry Abnormal release with access retry Abnormal release with system information Network Assisted Cell Change procedures Neighbour Cell System Information Distribution CCN setting procedure a CCN support description Cell Change Notification procedure Radio Link Control (RLC) procedures in packet transfer mode General Procedures and parameters for peer-to-peer operation Send state variable V(S) a Control send state variable V(CS) Acknowledge state variable V(A) Acknowledge state array V(B) Acknowledge state array V(B) for GPRS TBF Mode Acknowledge State Array V(B) for EGPRS TBF Mode Block sequence number BSN Block sequence number BSN for GPRS TBF Block sequence number BSN for EGPRS TBF a Reduced Block Sequence Number RBSN Receive state variable V(R) Receive window state variable V(Q) Receive state array V(N) Receive state array V(N) in GPRS TBF Receive state array V(N) in EGPRS TBF Starting sequence number (SSN) and received block bitmap (RBB) Starting sequence number (SSN) and received block bitmap (RBB) in GPRS TBF Starting sequence number (SSN) and received block bitmap (RBB) in EGPRS TBF Extended Polling Determination of SSN Generation of the bitmap Interpretation of the bitmap...98

8 7 TS V ( ) Window Size GPRS EGPRS Compression Segmentation of upper layer PDUs into RLC data units Re-assembly of upper layer PDUs from RLC data units a Segmentation of RLC/MAC control messages into RLC/MAC control blocks b Re-assembly of RLC/MAC control messages from RLC/MAC control blocks Priority of upper layer PDUs Operation during RLC/MAC control message transfer Operation during RLC data block transfer General Countdown procedure General Non-extended uplink TBF mode Extended uplink TBF mode a Delayed release of downlink Temporary Block Flow b Extended uplink TBF mode b.1 Application b.2 Operation of uplink TBF in extended uplink TBF mode Acknowledged mode operation General Additional functionality in acknowledged EGPRS TBF Mode Establishment of Temporary Block Flow Operation of uplink Temporary Block Flow Release of uplink Temporary Block Flow General Non-extended uplink TBF mode Operation of downlink Temporary Block Flow Release of downlink Temporary Block Flow Unacknowledged mode operation General Establishment of Temporary Block Flow Operation of uplink Temporary Block Flow Release of uplink Temporary Block Flow General Non-extended uplink TBF mode Operation of downlink Temporary Block Flow Release of downlink Temporary Block Flow Abnormal release cases Abnormal release with access retry Abnormal release with cell reselection Uplink TBF release in extended uplink TBF mode RLC/MAC block structure a RLC/MAC block structure a.1 GPRS RLC/MAC block for data transfer a.2 EGPRS RLC/MAC block for data transfer a.3 RLC/MAC block for control message transfer b RLC/MAC block format conventions b.1 Numbering convention b.2 Assembling conventions b.2.1 Assembling convention for GPRS RLC data blocks and RLC/MAC control blocks, 11-bit and 8-bit control messages b.2.2 Assembling convention for EGPRS RLC data blocks b b.3.1 Field mapping conventions Field mapping convention for GPRS RLC data blocks, RLC/MAC control blocks, 11-bit and 8-bit control messages b.3.2 Field mapping convention for EGPRS RLC data blocks Spare bits GPRS RLC data blocks Downlink RLC data block...118

9 8 TS V ( ) Uplink RLC data block RLC/MAC control blocks Downlink RLC/MAC control block Uplink RLC/MAC control block a EGPRS RLC data blocks and RLC/MAC headers a.0 General a.1 EGPRS downlink RLC data block a.2 EGPRS Uplink RLC data block a.3 EGPRS Downlink RLC/MAC header a.3.1 Header type 1: header for MCS-7, MCS-8 and MCS a.3.2 Header type 2: header for MCS-6 and MCS a.3.3 Header type 3: header for MCS-4, MCS-3, MCS-2 and MCS-1 case a.4 EGPRS Uplink RLC/MAC header a.4.1 Header type 1: header for MCS-7, MCS-8 and MCS a.4.2 Header type 2: header for MCS-6 and MCS a.4.3 Header type 3 : header for MCS-4, MCS-3, MCS-2 and MCS Header fields Uplink state flag (USF) field Retry (R) bit Stall indicator (SI) bit Supplementary/Polling (S/P) Bit a EGPRS Supplementary/Polling (ES/P) Field Relative Reserved Block Period (RRBP) field Special requirements in dual transfer mode Countdown Value (CV) field Payload Type field Final block indicator (FBI) bit a Coding and Puncturing Scheme indicator field (CPS) a.1 Header type 1: a.2 Header type a.3 Header type b Split Block indicator field (SPB) TLLI Indicator (TI) bit a Address Control (AC) bit b Final Segment (FS) bit c Radio Transaction Identifier (RTI) field d Direction (D) bit Temporary Flow Identity (TFI) field a Power Reduction (PR) field Extension (E) Bit Block Sequence Number (BSN) field a Reduced Block Sequence Number (RBSN) bit More (M) bit Length Indicator (LI) field in GPRS TBF mode and DCCH TBF mode (Iu mode) a Length Indicator (LI) field in EGPRS TBF mode and TCH TBF mode (Iu mode) TLLI field RLC data field Control message contents field Resent Block Bit (RSB) PFI Indicator (PI) bit Packet Flow Identifier (PFI) field Message functional definitions and contents Handling of erroneous protocol data Message classification Distribution messages Non-distribution messages Format of the address information DBPSCH message (Iu mode only) Error detection mechanism Error labels Generic error labels...138

10 9 TS V ( ) 'Ignore' error label 'Message escape' error label Error detection and order of precedence Unknown message type Message not compatible with current protocol state Syntactically incorrect message Messages with error label: 'Distribution part error' Messages with error label: 'Address information part error' Messages with error label: 'Non-distribution part error' Messages with error label: 'Message escape' Messages with error label: 'Ignore' Messages with error label: "DBPSCH message part error" Syntactic error in truncated concatenation (void) RLC/MAC control messages Message format Downlink RLC/MAC messages Uplink RLC/MAC messages Packet Access Reject Packet Control Acknowledgement a Packet Cell Change Continue Packet Cell Change Failure a Packet Cell Change Notification Packet Cell Change Order Packet Channel Request a EGPRS Packet Channel Request b Packet DBPSCH Assignment Packet Downlink Ack/Nack a EGPRS Packet Downlink Ack/Nack b Packet DBPSCH Downlink Ack/Nack Packet Downlink Assignment Special requirements in dual transfer mode for downlink TBF a Multiple TBF Downlink Assignment (Iu mode only) Packet Downlink Dummy Control Block b Packet Uplink Dummy Control Block Packet Measurement Report b Packet Measurement Order c Packet Mobile TBF Status d Packet Enhanced Measurement Report e Packet Neighbour Cell Data Packet Paging Request Packet PDCH Release Packet Polling Request Packet Power Control/Timing Advance Packet PRACH Parameters Packet Queueing Notification Packet Resource Request Packet PSI Status a Packet Serving Cell Data b Packet SI Status Packet System Information Type Packet System Information Type Reference Frequency Lists in PSI Cell Allocation in PSI GPRS Mobile Allocation in PSI PCCCH Description Abnormal cases Packet System Information Type Packet System Information Type 3 bis a... Packet System Information Type 3 ter b... Packet System Information Type 3 quater Packet System Information Type

11 10 TS V ( ) Packet System Information Type a Packet System Information Type b Packet System Information Type Packet System Information Type Packet System Information a Packet System Information b Packet System Information c Packet System Information Type Packet TBF Release (void) Packet Uplink Ack/Nack a Packet DBPSCH Uplink Ack/Nack Packet Uplink Assignment Special requirements in dual transfer mode for uplink TBF a Multiple TBF Uplink Assignment (Iu mode only) (void) a Packet Pause Packet Timeslot Reconfigure Special requirements in dual transfer mode a Multiple TBF Timeslot Reconfigure (Iu mode only) Additional MS Radio Access Capabilities Handover Access (Iu mode only) Physical Information (Iu mode only) Information element coding Overview (void) Ack/Nack Description EGPRS Ack/Nack Description (void) EGPRS EGPRS Channel Quality Report EGPRS Window Size EGPRS BEP Link Quality Measurements IE EGPRS Timeslot Link Quality Measurements IE (void) Channel Request Description a Iu mode Channel Request Description Frequency Parameters Abnormal cases Global Power Control Parameters Global TFI a GPRS Mobile Allocation a.1 Abnormal cases b (void) c (void) d EGPRS Modulation and coding Scheme description e RESEGMENT description Packet Request Reference Packet Timing Advance a Global Packet Timing Advance b Packet Extended Timing Advance Power Control Parameters PRACH Control Parameters Temporary Flow Identity (TFI) Temporary Logical Link Identity (TLLI)/G-RNTI a GERAN Radio Network Temporary Identity (G-RNTI) Temporary Queueing Identifier (TQI) TIMESLOT_ALLOCATION (void) PAGE_MODE Starting Frame Number Description...300

12 11 TS V ( ) Absolute Frame Number Encoding Relative Frame Number Encoding (void) Cell Identification GPRS Cell Options PCCCH Organization Parameters Extension Bits IE Non GPRS Cell Options IE LSA Parameters COMPACT reduced MA MS Radio Access Capability Timers and counters Timers on the Mobile Station side Timers on the network side Counters on the Mobile Station side Counters on the Network side Annex A (informative): Bibliography Annex B (informative): RLC data block encoding B.1 Example B.2 Example B.3 Example B.4 Example B.5 Example B.6 Example B.7 Example B.8 RLC data block delimitation for EGPRS B.8.1 Example B.8.2 Example B.8.3 Example Annex C (informative): Message Sequence Diagrams Annex D (informative): (void) Annex E (informative): (void) Annex F (informative): Examples of Countdown procedure operation F.1 Example F.2 Example F.3 Example Annex G (informative): Handling of erroneous protocol data, examples G.1 Application of error labels G.2 Application of the 'Message escape' error label G.3 Application of truncated concatenation including 'padding bits' G.4 Message extension using 'padding bits' G.5 Message extension using the Extension Bits IE Annex H (informative): (void) Annex I (informative): EGPRS RLC Window Sizes Annex J (informative): An example of MCS-8 retransmission J.1 Original MCS-8 RLC data block J.2 Retransmission in two MCS-6 RLC data blocks J.3 Retransmission in four MCS-3 RLC data blocks Annex K (informative): Change History History...344

13 12 TS V ( )

14 13 TS V ( ) Foreword This Technical Specification has been produced by the 3 rd Generation 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 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. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document.

15 14 TS V ( ) 1 Scope 1.1 General This document specifies procedures for the following layers of the radio interface (Um reference point), the interface between the GSM/EDGE Radio Access Network (GERAN) and the Mobile Station (MS): - Radio Link Control (RLC) - Medium Access Control (MAC), including Physical Link Control functions The procedures apply in A/Gb mode. Unless otherwise stated, the procedures also apply in Iu mode. 1.2 Related documents The following documents provide information related to this document: - 3GPP TS contains an overview of the GPRS radio interface (Um reference point). - 3GPP TS specifies channel types, access capabilities and channel configurations at the Um reference point. - 3GPP TS specifies services offered by the physical layer of the Um reference point. It also specifies control channels. RLC and MAC use these services and control channels. - 3GPP TS specifies, in general terms, this protocol's structured functions, its procedures and its relationship with other layers and entities. It also specifies the basic message format and error handling applied by layer 3 protocols. - 3GPP TS specifies GPRS procedures when operating on the Common Control Channel (CCCH) or on dedicated channels. - 3GPP TS specifies the Logical Link Control (LLC) layer. - 3GPP TS is an overall description of the GSM/EDGE Radio Access Network (GERAN) in Iu mode. - 3GPP TS specifies RLC/MAC procedures specific to Iu mode. - 3GPP TS specifies test procedures for radio-interface signalling. 1.3 Use of logical control channels 3GPP TS defines three similar sets of logical control. The first set consists of the following logical control channels: - Broadcast Control Channel (BCCH): downlink only, used to broadcast Cell specific information; - Paging Channel (PCH): downlink only, used to send page requests to Mobile Stations (MSs); - Random Access Channel (RACH): uplink only, used to request GPRS resources or a Dedicated Control Channel; - Access Grant Channel (AGCH): downlink only, used to allocate GPRS resources or a Dedicated Control Channel; The second set consists of the following logical control channels (Packet Control Channels): - Packet Broadcast Control Channel (PBCCH): downlink only, used to broadcast Cell specific information; - Packet Paging Channel (PPCH): downlink only, used to send page requests to Mobile Stations (MSs);

16 15 TS V ( ) - Packet Random Access Channel (PRACH): uplink only, used to request GPRS resources; - Packet Access Grant Channel (PAGCH): downlink only, used to allocate GPRS resources; - Packet Associated Control Channel (PACCH): bi-directional, associated with a Temporary Block Flow (TBF); - Packet Timing advance control channel uplink (PTCCH/U): used to transmit random access bursts to allow estimation of the timing advance for one MS in transfer state; - Packet Timing advance control channel downlink (PTCCH/D): used to transmit timing advance updates for several MS. One PTCCH/D is paired with several PTCCH/U's. The third set consists of the following logical control channels (COMPACT control channels): - COMPACT Packet Broadcast Control Channel (CPBCCH): downlink only, used to broadcast Cell specific information; This channel broadcasts the same information as the PBCCH, but has a different physical structure (see 3GPP TS ); - COMPACT Packet Paging Channel (CPPCH): downlink only, used to send page requests to Mobile Stations (MSs) on a COMPACT control channel;; - COMPACT Packet Random Access Channel (CPRACH): uplink only, used to request GPRS resources on a COMPACT control channel; - COMPACT Packet Access Grant Channel (CPAGCH): downlink only, used to allocate GPRS resources on a COMPACT control channel; - Packet Associated Control Channel (PACCH): see above; - Packet Timing advance control channel uplink (PTCCH/U): see above; - Packet Timing advance control channel downlink (PTCCH/D): see above. 1.4 Use of logical traffic channels 3GPP TS defines the following logical traffic channels used by RLC and MAC: - Traffic Channel (TCH): bidirectional, carries encoded speech or user data using GMSK on a dedicated basic physical subchannel (DBPSCH). TCH can be full-rate (TCH/F) or half-rate (TCH/H). - Octal Traffic Channel (O-TCH): bidirectional, carries encoded speech using 8-PSK on a DBPSCH. O-TCH can be full-rate (O-TCH/F) or half-rate (O-TCH/H). - Enhanced Traffic Channel (E-TCH): bidirectional, carries user data using 8-PSK on a DBPSCH. - Packet Data Traffic Channel (PDTCH): downlink or uplink, carries user data using GMSK or 8-PSK on a shared basic physical subchannel (SBPSCH) or a DBPSCH. PDTCHs can be full-rate (PDTCH/F) or half-rate (PDTCH/H). 1.5 Conventions Unless explicitly stated otherwise, the following conventions apply: - The notations "further study", "FS" or "FFS" indicate the annotated text is not normative. - "GPRS" refers to "GPRS and EGPRS". - "PBCCH" refers to "PBCCH and CPBCCH". - "PPCH" refers to "PPCH and CPPCH". - "PRACH" refers to "PRACH and CPRACH". - "PAGCH" refers to "PAGCH and CPAGCH".

17 16 TS V ( ) - References to "PDCH" also apply to "SBPSCH" and vice-versa. 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 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 of that document in the same Release as the present document. [1] 3GPP TR : "Vocabulary for 3GPP Specifications". [2] 3GPP TS : "General Packet Radio Service (GPRS); Service Description; Stage 1". [3] 3GPP TS : "Numbering, addressing and identification". [4] 3GPP TS : "Discontinuous Reception (DRX) in the GSM system". [5] 3GPP TS : " Overall description of GPRS radio interface; Stage 2". [6] 3GPP TS : "GSM - UMTS Public Land Mobile Network (PLMN) access reference configuration". [7] 3GPP TS : "Mobile Station - Base Station System (MS-BSS) interface; Channel structures and access capabilities". [8] 3GPP TS : "Layer 1; General requirements". [9] 3GPP TS : "Data Link (DL) layer; General aspects". [10] 3GPP TS : "Mobile radio interface signalling layer 3; General aspects". [11] 3GPP TS : "Mobile radio interface layer 3 specification; Radio Resource Control Protocol". [12] 3GPP TS : " Mobile Station - Serving GPRS Support Node (MS-SGSN) Logical Link Control (LLC) Layer Specification [13] 3GPP TS : "Multiplexing and multiple access on the radio path". [14] 3GPP TS : "Channel coding". [15] 3GPP TS : "Radio subsystem link control". [16] 3GPP TS : "Radio subsystem synchronization". [17] (void) [18] (void). [19] 3GPP TS : "General Packet Radio Service (GPRS); Service Description; Stage 2". [20] 3GPP TS : "Radio Resource Control (RRC) protocol specification". [21] 3GPP TS : "Requirements for support of radio resource management (FDD)". [22] 3GPP TS : "Requirements for support of radio resource management (TDD)". [23] ITU-T Recommendation T.4: "Standardization of Group 3 facsimile terminals for document transmission".

18 17 TS V ( ) [24] 3GPP TS : "Service accessibility". [25] 3GPP TS : "UE Radio Transmission and Reception (FDD)". [26] 3GPP TS : "UTRA (UE) TDD; Radio transmission and reception". [27] 3GPP TS : "Spreading and modulation (FDD)". [28] 3GPP TS : "Spreading and modulation (TDD)". [29] 3GPP TS : "UE Procedures in Idle Mode and Procedures for Cell Reselection in Connected Mode". [30] 3GPP TS : "Radio transmission and reception". [31] 3GPP TS : "Link adaptation". [32] TIA/EIA-IS A: "CDMA 2000 Series". [33] 3GPP TS : "Mobile Station (MS) conformance specification; Part 1: Conformance specification ". [34] 3GPP TS : "Mobile Station (MS) conformance specification; Part 2: Protocol Implementation Conformance Statement (ICS); proforma specification". [35] 3GPP TS : "Mobile Station (MS) conformance specification; Part 3: Layer 3 Abstract Test Suite (ATS)". [36] 3GPP TS : "Mobile Station (MS) conformance specification; Part 4: SIM application toolkit conformance specification". [37] 3GPP TS : "Base Station System (BSS) equipment specification; Radio aspects". [38] 3GPP TS : "GSM/EDGE Radio Access Network (GERAN); Overall Description Stage 2". [39] 3GPP TS : "Mobile Station (MS) - Base Station System (BSS) interface; Radio Link Control/ Medium Access Control (RLC/MAC) protocol in Iu mode". [40] Michel MOULY, "CSN.1 Specification, Version 2.0", Cell & Sys, ISBN: Web: [41] 3GPP TS : "Physical Layer Procedures (TDD)". 3 Definitions, abbreviations and symbols 3.1 Definitions This document uses the following definitions: A/Gb mode: mode of operation of the MS when connected to the Core Network via GERAN and the A and/or Gb interfaces. Block period: block period is the sequence of four timeslots on a PDCH used to convey one radio block Cell Change Notification (CCN): See sub-clause a. Dual transfer mode: In dual transfer mode, the mobile station is allocated radio resources providing an RR connection (3GPP TS ) and a Temporary Block Flow on one or more packet data physical channels. The allocation of radio resource for the RR connection and the Temporary Block Flow is co-ordinated by the network in agreement with the capabilities of the mobile station in dual transfer mode.

19 18 TS V ( ) EGPRS: Enhanced GPRS enables higher data rates through usage of 8PSK modulation in addition to GMSK. EGPRS also enables Incremental Redundancy operation. EGPRS TBF mode: refers to a TBF utilising the EGPRS enhancements, e.g. Incremental Redundancy and possibly 8- PSK. EGPRS-GMSK only TBF mode: refers to a TBF in EGPRS TBF mode but making only use of MCS-1 to MCS-4 modulation and coding schemes. The number of PDCHs allocated to an EGPRS-GMSK only TBF can be extended to the maximum number of timeslots compatible with the GPRS multislot class of the MS. This mode is determined by the mobile station based on the aggregate timeslot allocation assigned by the network. In the case the aggregate timeslot allocation is not within the indicated EGPRS multislot class, but is within the indicated GPRS multislot class, a mobile station supporting this mode shall consider the TBF to be in EGPRS-GMSK only mode (see sub-clause ). This mode is only applicable in packet transfer mode. Extended uplink TBF mode: In the extended uplink TBF mode, the uplink TBF may be maintained during temporary inactive periods, where the mobile station has no RLC information to send. The network determines the release of the uplink TBF (see sub-clause 9.3.1b). MS multislot class: refers to GPRS multislot class in case of a GPRS TBF mode or EGPRS-GMSK only TBF mode. In case of EGPRS TBF mode, MS multislot class refers to EGPRS multislot class. GPRS multislot class / EGPRS multislot class: refers to the different mobile station capabilities to transmit and receive on different combinations of multiple PDCHs. The multislot classes are defined in 3GPP TS Note that the mobile station may indicate different multislot classes for circuit mode services for GPRS and for EGPRS (see 3GPP TS ). Different multislot class mobile stations are capable of supporting different medium access modes (see sub-clause 5.2.4). GPRS TBF mode: a TBF not utilising EGPRS enhancements. IR: Incremental redundancy, enables higher data rates through combining information from different transmissions of RLC data blocks when decoding. Also known as Hybrid Type II/III ARQ. Iu mode: mode of operation of the MS when connected to the Core Network via GERAN or UTRAN and the Iu interface. MAC-dedicated state: a MAC-control-entity state where a DBPSCH is assigned and no SBPSCH is assigned. This state only applies in Iu mode. MAC-DTM state: a MAC-control-entity state where at least one DBPSCH and one SBPSCH are assigned. This state only applies in Iu mode. MAC-idle state: a MAC-control-entity state where no basic physical subchannels are assigned. This state only applies in Iu mode. MAC-shared state: a MAC-control-entity state where at least one SBPSCH is assigned. This state only applies in Iu mode. MCS: Modulation and Coding Scheme. Non-extended uplink TBF mode: Where a distinction is needed, an uplink TBF, not operating in the extended uplink TBF mode, is referred as operating in the non-extended uplink TBF mode. Packet flow context: Packet Flow Context (PFC) procedures are described in 3GPP TS A Packet Flow Identifier (PFI) is used to identify a PFC. Packet idle mode: In packet idle mode, the mobile station is prepared to transfer LLC PDUs on packet data physical channels (see sub-clause 5.3). The mobile station is not allocated any radio resource on a packet data physical channel; it listens to the PBCCH and PCCCH or, if those are not provided by the network, to the BCCH and the CCCH. Packet transfer mode: In packet transfer mode, the mobile station is prepared to transfer LLC PDUs on packet data physical channels (see sub-clause 5.4). The mobile station is allocated radio resource on one or more packet data physical channels for the transfer of LLC PDUs. Radio block: A radio block is the sequence of four normal bursts carrying one RLC/MAC protocol data units (see 3GPP TS ). (The one exception is a radio block occasionally used on PACCH consisting of a sequence of four access bursts, each carrying a repetition of one short RLC/MAC block.)

20 19 TS V ( ) Random values: In a number of places in this Technical Specification, it is mentioned that some value must take a 'random' value, in a given range, or more generally with some statistical distribution. For such random values refer to 3GPP TS RLC/MAC block: A RLC/MAC block is the protocol data unit exchanged between RLC/MAC entities (see clause 10 and 3GPP TS ). RLC/MAC control block: A RLC/MAC control block is the part of an RLC/MAC block carrying a control message between RLC/MAC entities (see sub-clause 10.3). RLC data block: A RLC data block is the part of a RLC/MAC block carrying user data or upper layers" signalling data (see sub-clause 10.2). RR connection: An RR connection is a physical connection established between a mobile station and the network to support the upper layers" exchange of information flows. An RR connection is maintained and released by the two peer entities. RRC connection: An RRC connection is a point-to-point, bi-directional, logical connection between RRC peer entities in the mobile station and the GERAN characterised by the allocation of a G-RNTI. A mobile station has either zero or one RRC connections. RRC connections only apply in Iu mode. TBF abort: The term 'abort' as applied to TBF is used when the TBF is abruptly stopped without using the Release of TBF procedures defined in clause 9. TBF release: The term 'release' as applied to TBF is used when the TBF is stopped using one of the Release of TBF procedures defined in clause 9. Temporary Block Flow (TBF): A Temporary Block Flow is, in A/Gb mode, a physical connection used by the two RR peer entities to support the unidirectional transfer of LLC PDUs on packet data physical channels (see sub-clause 5.2.1). In Iu mode, a TBF is a logical connection offered by two MAC entities to support the unidirectional transfer of RLC PDUs on basic physical subchannels. Timer Expiry: A started timer has run the time specified. Timer Restart: A timer that may already be running is stopped and then started again to run the time specified. Timer Start: A timer is started to run the time specified. Timer Stop: A started timer is stopped and its value is then undefined. Uplink control timeslot: refers to the timeslot number of the timeslot where the PACCH/U for the MS is located. This parameter is set to the value of the Uplink Control timeslot IE in an assignment message. Otherwise, this parameter is unassigned. Uplink State Flag (USF): The Uplink State Flag (USF) is used on PDCH channel(s) to allow multiplexing of uplink Radio blocks from different mobile stations (see sub-clause 5.2.3, clause 10 and 3GPP TS ). Upper-layer PDU: An upper-layer PDU is, in A/Gb mode, an LLC PDU and, in Iu mode, an RRC message, a PDCP PDU or a PDU from the NAS user plane. 3.2 Abbreviations This document uses abbreviations from 3GPP TR and 3GPP TS It also uses the following abbreviations: ARI ARQ AS BCCH BSS CBCH CC CCCCH CCCH CCN Access Request Identifier Automatic Repeat request Access Stratum Broadcast Control CHannel Base Station Subsystem Cell Broadcast CHannel Call Control COMPACT CCCH Common Control CHannel Cell Change Notification

21 20 TS V ( ) CN CPBCCH CS-i DC DLC DBPSCH ECSD EDGE E-FACCH EGPRS E-TCH FACCH GC GERAN GPRS GRA G-RNTI GSM IETF IMSI IP LCS LLC MAC MCS-i MM MS NAS NSAPI Nt O-FACCH O-TCH PBCCH PDCH PDCP PDP PDTCH PDU PFC PFI PLMN PTCCH P-TMSI QoS RAB RANAP RB RLC RNC RNS RNSAP ROHC RR RRC RTP SACCH SAP SAPI SDCCH SDU SBPSCH TBF Core Network COMPACT PBCCH GPRS Coding Scheme i Dedicated Control Data Link Control Dedicated Basic Physical Sub CHannel Enhanced Circuit Switched Data Enhanced Data rates for Global Evolution Enhanced FACCH Enhanced General Packet Radio Service Enhanced TCH Fast Associated Control CHannel General Control GSM/EDGE Radio Access Network General Packet Radio Service GERAN Registration Area GERAN Radio Network Temporary Identity Global System for Mobile communications Internet Engineering Task Force International Mobile Subscriber Identity Internet Protocol LoCation Services Logical Link Control Medium Access Control EGPRS Modulation and Coding Scheme i Mobility Management Mobile Station Non Access Stratum Network-layer SAPI Notification Octal FACCH Octal TCH Packet BCCH Packet Data CHannel Packet Data Convergence Protocol Packet Data Protocol Packet Data TCH Protocol Data Unit Packet Flow Context Packet Flow Identifier Public Land Mobile Network Packet Timing-advance Control CHannel Packet TMSI Quality of Service Radio Access Bearer Radio Access Network Application Part Radio Bearer Radio Link Control Radio Network Controller Radio Network Subsystem Radio Network Subsystem Application Part Robust Header Compression Radio Resource Radio Resource Control Real Time Protocol Slow Associated Control CHannel Service Access Point Service Access Point Identifier Stand-alone Dedicated Control CHannel Service Data Unit Shared Basic Physical Sub CHannel Temporary Block Flow

22 21 TS V ( ) TCH TCP TLLI TMSI UDP UMTS USF UTRAN Traffic Channel Transmission Control Protocol Temporary Logical Link Identifier Temporary Mobile Subscriber Identity User Datagram Protocol Universal Mobile Telecommunication System Uplink State Flag UMTS Terrestrial Radio Access Network 3.3 Symbols This document uses the following symbols: A Gb Iu Iu-cs Iu-ps Iur-g Um Interface between a BSS and a 2G MSC Interface between a BSS and a 2G SGSN Interface between a BSS or an RNC and a 3G MSC or a 3G SGSN Interface between a BSS or an RNC and a 3G MSC Interface between a BSS or an RNC and a 3G SGSN Interface between two BSSs or between a BSS and an RNC Interface between an MS and the GERAN 4 Layered overview of radio interface The Radio Resource sublayer provides the functions necessary for: - Radio Resource (RR) management of packet data physical channels (PDCHs); and - Radio Link Control and Medium Access Control (RLC/MAC) on packet data physical channels. As shown in figure 4.1, the RR sublayer provides services to the MM and LLC sublayers. The RR sublayer utilises the services of the Data Link layer (signalling layer 2) and the Physical Link layer. The packet logical channels PBCCH, PCCCH (including PPCH, PAGCH and PRACH), PACCH and PDTCH, are multiplexed onto the packet data physical channels on a per radio block basis.

23 22 TS V ( ) MM sublayer LLC sublayer RR-SAP GMMRR-SAP GRR-SAP RR sublayer RR management non-rr PD RR RR upper layers' PDUs RLC/MAC PCCCH PDTCH PBCCH PACCH SAPI 0 SAPI 3 BCCH RACH PCH SDCCH FACCH AGCH SACCH SDCCH SACCH Data Link layer (signalling layer 2) PDCH Physical Link layer Figure 4.1: Protocol architecture of Radio Resource (RR) sublayer and RLC/MAC function 4.1 Layer services The RR sublayer provides services for the transfer of upper layer PDUs using a shared medium between multiple mobile stations and the network. Direct communication is only possible between the network and one or more mobile stations. The RLC/MAC function supports two modes of operation: - unacknowledged operation; and - acknowledged operation. The RR sublayer further provides services for the paging of mobile stations. 4.2 Layer functions The RLC function defines the procedures for segmentation and reassemble of LLC PDUs into RLC/MAC blocks and, in RLC acknowledged mode of operation, for the Backward Error Correction (BEC) procedures enabling the selective retransmission of unsuccessfully delivered RLC/MAC blocks. In RLC acknowledged mode of operation, the RLC function preserves the order of higher layer PDUs provided to it. The RLC function provides also link adaptation. In EGPRS in RLC acknowledged mode of operation, the RLC function may provide Incremental Redundancy (IR).

24 23 TS V ( ) The MAC function defines the procedures that enable multiple mobile stations to share a common transmission medium, which may consist of several physical channels. The function may allow a mobile station to use several physical channels in parallel, i.e. use several timeslots within the TDMA frame. For the mobile station originating access, the MAC function provides the procedures, including the contention resolution procedures, for the arbitration between multiple mobile stations simultaneously attempting to access the shared transmission medium. For the mobile station terminating access, the MAC function provides the procedures for queuing and scheduling of access attempts. 4.3 Service primitives Information flow between layers is performed by the use of Service Primitives. Service Access Points (SAP) and their corresponding Service Primitives for the RR sublayer are defined in 3GPP TS Services required from lower layers The RLC/MAC function uses the services provided by the physical link layer as defined in 3GPP TS The RR sublayer may use the services provided by the data link layer as defined in 3GPP TS Moreover, the RR sublayer directly uses services provided by the physical layer such as BCCH searching, as defined in 3GPP TS Introduction to the Medium Access Control (MAC) procedures 5.1 General The Medium Access Control procedures include the functions related to the management of the shared transmission resources, e.g. the packet data physical channels and the radio link connections on packet data physical channels. The Medium Access Control procedures support the provision of Temporary Block Flows (TBFs) that allow the pointto-point transfer of signalling and user data within a cell between the network and a mobile station. Moreover, the Medium Access Control procedures include the procedures for reception of PBCCH and PCCCH, which permits autonomous cell reselection performed by the mobile station (see 3GPP TS ). 5.2 Multiplexing principles Temporary Block Flow A Temporary Block Flow (TBF) is a physical connection used by the two RR entities to support the unidirectional transfer of upper layer PDUs on packet data physical channels. The TBF is allocated radio resources on one or more PDCHs and comprises a number of RLC/MAC blocks carrying one or more upper layer PDUs. A TBF is temporary and is maintained only for the duration of the data transfer (i.e. until there are no more RLC/MAC blocks to be transmitted and, in RLC acknowledged mode, all of the transmitted RLC/MAC blocks have been successfully acknowledged by the receiving entity). A TBF may operate in either GPRS or EGPRS TBF mode. The network sets the TBF mode in the PACKET UPLINK ASSIGNMENT, PACKET DOWNLINK ASSIGNMENT or IMMEDIATE ASSIGNMENT message. The EGPRS TBF mode is only supported by EGPRS capable MSs. If an MS is assigned concurrent TBFs, these shall be in the same TBF mode.