SIST EN 300 911 V6.4.1:2003

Digital cellular telecommunications system (Phase 2+) (GSM); Radio subsystem link control (GSM 05.08 version 6.4.1 Release 1997)

SUBJECT Clarification of Complete BA (SACCH) MS delay time in reporting a new strongest neighbouring cell Measurement reporting GPRS idle mode measurements Tolerances for power control Clarification of Power Control GPRS downlink power control

Digitalni celični telekomunikacijski sistem (faza 2+) – Krmiljenje povezave radijskega podsistema (GSM 05.08, različica 6.4.1, izdaja 1997)

General Information

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.50 - Global System for Mobile Communication (GSM)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 911 V6.4.1 (1999-08) - Digital cellular telecommunications system (Phase 2+) (GSM); Radio subsystem link control (GSM 05.08 version 6.4.1 Release 1997)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Radio subsystem link control (GSM 05.08 version 6.4.1 Release 1997)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 300 911 Version 6.4.1SIST EN 300 911 V6.4.1:2003en01-december-2003SIST EN 300 911 V6.4.1:2003SLOVENSKI
STANDARD



SIST EN 300 911 V6.4.1:2003



EN 300 911 V6.4.1 (1999-08)European Standard (Telecommunications series)Digital cellular telecommunications system (Phase 2+);Radio subsystem link control(GSM 05.08 version 6.4.1 Release 1997)GLOBAL SYSTEM
FOR MOBILE COMMUNICATIONSRSIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)2(GSM 05.08 version 6.4.1 Release 1997)ReferenceREN/SMG-020508Q6R3 (8fo031co.PDF)KeywordsDigital cellular telecommunications system,Global System for Mobile communications (GSM)ETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail] copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: [e-mail] NotificationNo 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 1999.All rights reserved.SIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)3(GSM 05.08 version 6.4.1 Release 1997)ContentsIntellectual Property Rights.6Foreword.61Scope.71.1References.71.2Abbreviations.82General.83Handover.93.1Overall process.93.2MS measurement procedure.93.3BSS measurement procedure.93.4Strategy.94RF power control.104.1Overall process.104.2MS implementation.104.3MS power control range.104.4BSS implementation.104.5BSS power control range.104.6Strategy.114.7Timing.114.8Dedicated channels used for a voice group call or voice broadcast.115Radio link failure.115.1Criterion.115.2MS procedure.125.3BSS procedure.126Idle mode tasks.126.1Introduction.126.2Measurements for normal cell selection.136.3Measurements for stored list cell selection.136.4Criteria for cell selection and reselection.146.5Downlink signalling failure.156.6Measurements for Cell Reselection.156.6.1Monitoring of received signal level and BCCH data.166.6.2Path loss criteria and timings for cell re-selection.166.7Release of TCH and SDCCH.176.7.1Normal case.176.7.2Call re-establishment.186.8Abnormal cases and emergency calls.187Network pre-requisites.197.1BCCH carriers.197.2Identification of surrounding BSS for handover measurements.198Radio link measurements.208.1Signal level.208.1.1General.208.1.2Physical parameter.208.1.3Statistical parameters.218.1.4Range of parameter.228.2Signal quality.228.2.1General.228.2.2Physical parameter.228.2.3Statistical parameters.228.2.4Range of parameter.22SIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)4(GSM 05.08 version 6.4.1 Release 1997)8.3Aspects of discontinuous transmission (DTX).238.4Measurement reporting.248.4.1Measurement reporting for the MS on a TCH.248.4.2Measurement reporting for the MS on a SDCCH.258.4.3Additional cell reporting requirements for multi band MS.258.4.4Common aspects for the MS on a TCH or a SDCCH.268.4.5Measurement reporting for the BSS.268.4.6Extended measurement reporting.278.5Absolute MS-BTS distance.278.5.1General.278.5.2Physical parameter.279Control parameters.2810GPRS mode tasks.3010.1Cell Re-selection.3010.1.1Monitoring the received signal level and PBCCH data.3110.1.1.1Packet idle mode.3110.1.1.2Packet transfer mode.3110.1.2Cell Re-selection Criteria.3210.1.3Cell Re-selection Algorithm.3310.1.3.1Abnormal cell reselection.3410.1.4Network controlled Cell re-selection.3410.1.4.1Measurement reporting.3510.1.4.2Cell re-selection command.3610.1.4.3Exceptional cases.3610.1.5Extended Measurement reporting.3610.2RF Power Control.3710.2.1MS output power.3710.2.2BTS output power.3810.2.3Measurements at MS side.3810.2.3.1Deriving the C value.3810.2.3.1.1Packet idle mode.3810.2.3.1.2Packet transfer mode.3910.2.3.2Derivation of Channel Quality Report.4010.2.3.2.1Packet transfer mode.4110.2.3.2.2Packet idle mode.4110.2.4Measurements at BSS side.4210.3Measurement requirements.4210.4Control parameters.42Annex A (informative):Definition of a basic GSM or DCS 1 800 handover and RF powercontrol algorithm.45A.1Scope.45A.2Functional requirement.45A.3BSS pre-processing and threshold comparisons.46A.3.1Measurement averaging process.46A.3.2Threshold comparison process.47A.3.2.1RF power control process.47A.3.2.2Handover Process.48A.4BSS decision algorithm.49A.4.1Internal intracell handover according to radio criteria: (Interference problems).50A.4.2Internal handover according to other criteria.50A.4.3General considerations.50SIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)5(GSM 05.08 version 6.4.1 Release 1997)A.5Channel allocation.50A.6Handover decision algorithm in the MSC.51Annex B (informative):Power Control Procedures.53B.1Open loop control.53B.2Closed loop control.54B.3Quality based control.54B.4BTS power control.55B.5Example.55Annex C (informative):Change Request History.57History.59SIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)6(GSM 05.08 version 6.4.1 Release 1997)Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by the Special Mobile Group (SMG).The present document specifies the Radio sub-system link control implemented in the Mobile Station (MS), BaseStation System (BSS) and Mobile Switching Centre (MSC) of the digital mobile cellular and personal communicationsystems operating in the 900 MHz and 1 800 MHz band (GSM 900 and DCS 1 800).The contents of the present document are subject to continuing work within SMG and may change following formalSMG approval. Should SMG modify the contents of the present document it will then be republished by ETSI with anidentifying change of release date and an increase in version number as follows:Version 6.x.ywhere:6indicates release 1997 of GSM Phase 2+xthe second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates,etc.ythe third digit is incremented when editorial only changes have been incorporated in the specification.Proposed national transposition datesDate of adoption of this EN:6 August 1999Date of latest announcement of this EN (doa):30 November 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 May 2000Date of withdrawal of any conflicting National Standard (dow):31 May 2000SIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)7(GSM 05.08 version 6.4.1 Release 1997)1ScopeThe present document specifies the Radio sub-system link control implemented in the Mobile Station (MS), BaseStation System (BSS) and Mobile Switching Centre (MSC) of the GSM and DCS 1 800 systems.Unless otherwise specified, references to GSM also include DCS 1 800.1.1ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.· References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.· For a specific reference, subsequent revisions do not apply.· For a non-specific reference, the latest version applies.· A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations andacronyms".[2]GSM 03.03: "Digital cellular telecommunications system (Phase 2+); Numbering, addressing andidentification".[3]GSM 03.09: "Digital cellular telecommunications system (Phase 2+); Handover procedures".[4]GSM 03.22: "Digital cellular telecommunications system (Phase 2+); Functions related to MobileStation (MS) in idle mode and group receive mode".[5]GSM 04.04: "Digital cellular telecommunications system (Phase 2+); Layer 1; Generalrequirements".[6]GSM 04.06: "Digital cellular telecommunications system (Phase 2+); Mobile Station - BaseStation System (MS - BSS) interface; Data Link (DL) layer specification".[7]GSM 04.08: "Digital cellular telecommunications system (Phase 2+); Mobile radio interface layer3 specification".[8]GSM 05.02: "Digital cellular telecommunications system (Phase 2+); Multiplexing and multipleaccess on the radio path".[9]GSM 05.05: "Digital cellular telecommunications system (Phase 2+); Radio transmission andreception".[10]GSM 05.10: "Digital cellular telecommunications system (Phase 2+); Radio subsystemsynchronization".[11]GSM 06.11: "Digital cellular telecommunications system; Full rate speech; Substitution andmuting of lost frames for full rate speech channels".[12]GSM 08.08: "Digital cellular telecommunications system (Phase 2+); Mobile-services SwitchingCentre - Base Station System (MSC - BSS) interface, Layer 3 specification".[13]GSM 08.58: "Digital cellular telecommunications system (Phase 2+); Base Station Controller -Base Transceiver Station (BSC - BTS) interface; Layer 3 specification".[14]GSM 11.10: "Digital cellular telecommunications system (Phase 2+); Mobile Station (MS)conformity specification".SIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)8(GSM 05.08 version 6.4.1 Release 1997)[15]GSM 03.64: "Digital cellular telecommunications system (Phase 2+); General Packet RadioService (GPRS); Overall description of the GPRS Radio Interface; Stage 2".1.2AbbreviationsAbbreviations used in the present document are listed in GSM 01.04.2GeneralThe radio sub-system link control aspects that are addressed are as follows:-Handover;-RF Power control;-Radio link Failure;-Cell selection and re-selection in Idle mode, in Group Receive mode and in GPRS mode (see GSM 03.22).Handover is required to maintain a call in progress as a MS engaged in a point-to-point call or with access to the uplinkof a channel used for a voice group call passes from one cell coverage area to another and may also be employed to meetnetwork management requirements, e.g. relief of congestion.Handover may occur during a call from one TCH or multiple TCHs (in the case of multislot configuration) to anotherTCH or multiple TCHs. It may also occur from DCCH to DCCH or from DCCH to one or multiple TCH(s), e.g. duringthe initial signalling period at call set-up.The handover may be either from channel(s) on one cell to other channel(s) on a surrounding cell, or between channelson the same cell which are carried on the same frequency band. Examples are given of handover strategies, however,these will be determined in detail by the network operator.For a multiband MS, specified in GSM 02.06, the handover described is also allowed between any channels on differentcells which are carried on different frequency bands, e.g. between a GSM 900/TCH and a DCS 1 800/TCH. Handoverbetween two co-located cells, carried on different frequency bands, is considered as inter-cell handover irrespective ofthe handover procedures used.Adaptive control of the RF transmit power from an MS and optionally from the BSS is implemented in order to optimizethe uplink and downlink performance and minimize the effects of co-channel interference in the system.The criteria for determining radio link failure are specified in order to ensure that calls which fail either from loss ofradio coverage or unacceptable interference are satisfactorily handled by the network. Radio link failure may result ineither re-establishment or release of the call in progress. For channels used for a voice group call, an radio uplink failureresults in the freeing up of the uplink.Procedures for cell selection and re-selection whilst in Idle mode (i.e. not actively processing a call), are specified inorder to ensure that a mobile is camped on a cell with which it can reliably communicate on both the radio uplink anddownlink. The operations of an MS in Idle Mode are specified in GSM 03.22.Cell re-selection is also performed by the MS when attached to GPRS, except when the MS simultaneously has a circuitswitched connection. Optional procedures are also specified for network controlled cell re-selection for GPRS. Cell re-selection for GPRS is defined in subclause 10.1.An MS listening to a voice group call or a voice broadcast use cell re-selection procedures to change cell. This may besupported by a list of cells carrying the voice group or voice broadcast call downlink, provided to the MS by thenetwork. The operations of an MS in Group Receive Mode are specified in GSM 03.22.Information signalled between the MS and BSS is summarized in tables 1, 2 and 3. A full specification of the Layer 1header is given in GSM 04.04, and of the Layer 3 fields in GSM 04.08.SIST EN 300 911 V6.4.1:2003



ETSIEN 300 911 V6.4.1 (1999-08)9(GSM 05.08 version 6.4.1 Release 1997)3Handover3.1Overall processThe overall handover process is implemented in the MS, BSS and MSC. Measurement of radio subsystem downlinkperformance and signal levels received from surrounding cells, is made in the MS. These measurements are signalled tothe BSS for assessment. The BSS measures the uplink performance for the MS being served and also assesses the signallevel of interference on its idle traffic channels. Initial assessment of the measurements in conjunction with definedthresholds and handover strategy may be performed in the BSS. Assessment requiring measurement results from otherBTS or other information resident in the MSC, may be performed in the MSC.GSM 03.09 describes the handover procedures to be used in PLMNs.3.2MS measurement procedureA procedure shall be implemented in the MS by which it monitors the downlink RX signal level and quality from itsserving cell and the downlink RX signal level and BSIC of surrounding BTS. The method of identification ofsurrounding BTS is described in subclause 7.2. The requirements for the MS measurements are given in subclause 8.1.3.3BSS measurement procedureA procedure shall be implemented in the BSS by which it monitors the uplink RX signal level and quality from each MSbeing served by the cell. In the case of a multislot configuration the evaluation shall be performed on a timeslot pertimeslot basis. A procedure shall be implemented by which the BSS monitors the levels of interference on its idle trafficchannels.3.4StrategyThe handover strategy employed by the network for radio link control determines the handover decision that will bemade based on the measurement results reported by the MS/BSS and various parameters set for each cell. Networkdirected handover may also occur for reasons other than radio link control, e.g. to control traffic distribution betweencells. The exact handover strategies will be determined by the network operator, a detailed example of a basic overallalgorithm appears in annex A. Possible types of handover are as follows:Inter-cell handover:Intercell handover from the serving cell to a surrounding cell will normally occur either when the handovermeasurements show low RXLEV and/or RXQUAL on the current serving cell and a better RXLEV availablefrom a surrounding cell, or when a surrounding cell allows communication
...