SIST TBR 019 E1:2004

SLOVENSKI STANDARD
SIST TBR 019 E1:2004
01-oktober-2004
(YURSVNLGLJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D3ULNOMXþLWYHQH]DKWHYH
]DPRELOQHSRVWDMHJOREDOQHJDVLVWHPDPRELOQLKNRPXQLNDFLM*60'RVWRS
European digital cellular telecommunications system (Phase 2); Attachment
requirements for Global System for Mobile communications (GSM) mobile stations;
Access
Ta slovenski standard je istoveten z: TBR 019 Edition 1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST TBR 019 E1:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST TBR 019 E1:2004

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TECHNICAL TBR 19
BASIS for February 1996
REGULATION
Source: ETSI TC-SMG Reference: DTBR/SMG-0019TTCN
ICS: 33.060.50
European digital cellular telecommunications system, Global System for Mobile communications
Key words:
(GSM)
European digital cellular telecommunications system (Phase 2);
Attachment requirements for Global System for Mobile
communications (GSM) mobile stations;
Access
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
*
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 1996. All rights reserved.

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TBR 19: February 1996
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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TBR 19: February 1996
Contents
Foreword .5
1 Scope .7
2 Normative references.8
3 Abbreviations.9
4 Requirements.11
Annex A (normative): The TBR Requirement Table (TBR-RT).60
A.1 Introduction to the TBR-RT .60
A.2 Format of the tables .60
A.3 References to ETS 300 607-1 (GSM 11.10-1).61
A.4 Notations used in the TBR-RT .61
A.4.1 Status Notations.61
A.4.2 Support Answer Notations .61
A.5 The TBR Requirement Tables .62
A.5.1 Static Requirements, TBR-RT A.62
A.5.1.1 Types of Mobile Stations .62
A.5.1.2 Mobile Station Features .63
A.5.1.3 Teleservices .64
A.5.1.4 Bearer Services.65
A.5.1.5 Supplementary Services .66
A.5.1.6 Bearer Capability Information.67
A.5.1.7 Additional Information.80
A.5.2 Dynamic Requirements, TBR-RT B.83
History.104

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TBR 19: February 1996
Foreword
This Technical Basis for Regulation (TBR) has been produced by the Special Mobile Group (SMG)
Technical Committee of the European Telecommunications Standards Institute (ETSI). This TBR covers
the general access requirements for terminal equipment for the Global System for Mobile communications
(GSM) mobile services.
This TBR contains the procedures and requirements for the approval testing of GSM terminal equipment
for access.
The requirements of other TBRs apply in addition to this TBR.
For each test, supplementary information is provided, giving a justification why this item has been selected
for regulatory testing, and a reference to the relevant article of the Terminal Directive [1].
This TBR is based on ETS 300 607-1 (GSM 11.10-1) [2].
ThisTBR 19 corresponds to TC-SMG TBR 19 version 4.0.0.
NOTE: This TBR for Phase 2 may be developed in stages. The first release will include, as a
minimum, all of the basic Phase 2 requirements for full rate, half rate, and primary and
extended bands. Subsequent releases will include additional requirements.

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TBR 19: February 1996
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TBR 19: February 1996
1 Scope
This Technical Basis for Regulation (TBR) specifies the technical requirements to be met by terminal
equipment capable of connecting to a public telecommunications network. These requirements apply to
terminals for Phase 2 of the public land mobile radio service, operating in the 900 MHz band with a
channel separation of 200 kHz, utilising constant envelope modulation and carrying traffic channels
according to the Time Division Multiple Access (TDMA) principle.
This TBR specifies the terminal equipment access requirements for the GSM 900 version of the Global
System for Mobile communications (GSM).
For each test purpose and its corresponding conformance requirement, a reference is given to the test
method in ETS 300 607-1 (GSM 11.10-1) [2]. The requirements apply at the air interface and the
Subscriber Identity Module - Mobile Equipment interface for the access requirements, which may be
stimulated to perform the tests by additional equipment if necessary.
The measurement uncertainty is described in ETS 300 607-1 (GSM 11.10-1) [2].
This TBR covers the essential requirements of the Terminal Directive 91/263/EEC [1] Articles 4d, 4e, 4f.
Non access related aspects of speech telephony, where Article 4g has been applied, are covered by
TBR 20.
The Terminal Directive 91/263/EEC [1] Articles 4a and 4b are covered by other directives, and, therefore,
not by this TBR.
In this TBR, there are no Electromagnetic Compatibility technical requirements in terms of the Terminal
Directive 91/263/EEC [1], Article 4c.
NOTE: Technical Requirements for EMC performance and testing of the equipment are
covered by the relevant standards applicable to the EMC Directive 89/336/EEC, Annex
A.
Terminal equipment may be subject to additional requirements in other Common Technical Regulations
(CTR) depending on the equipments functionality.
ETS 300 607-1 (GSM 11.10-1) [2] constitutes the conformance test suite for GSM. The verification of the
conformance requirements in this TBR is based on the tests described in this reference. The set of
requirements in ETS 300 607-1 (GSM 11.10-1) [2] and the set of requirements in this TBR need not be
identical.
Some requirements only apply to specific types of mobile station (e.g. data tests only apply to mobile
stations with a data facility). The TBR also indicates the specific test which should be carried out for each
mobile station type.
An active accessory is covered by this TBR if it modifies the terminal performance in an aspect which
affects conformance to essential requirements.
NOTE: Only active devices are subject to this TBR. Accessories may be tested with specific
terminals, and either approved for use with those terminals only, or may possibly be
approved for use with a wider range of terminals, depending on the nature and effect
of the accessory.

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TBR 19: February 1996
2 Normative references
This TBR incorporates, by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references subsequent amendments to or revision of any of these publications apply
to the requirements specified in this TBR, only when incorporated in it by amendment or revision. For
undated references the latest edition of the publication referred to applies.
[1] Terminal Directive 91/263/EEC: "Council directive of 29 April 1991 on the
approximation of the laws of the Member States concerning telecommunications
terminal equipment, including the mutual recognition of their conformity. ("The
Terminal Directive")".
[2] ETS 300 607-1 (GSM 11.10-1 version 4.13.0): "European digital cellular
telecommunications system (phase 2); Mobile station conformity specifications".
[3] TBR 20: "European digital cellular telecommunications system; Attachment
requirements for Global System for Mobile communications (GSM) mobile
stations; Telephony".
[4] ETS 300 500 (GSM 02.01 version 4.6.0): "European digital cellular
telecommunication system (Phase 2); Principles of telecommunication services
supported by a GSM Public Land Mobile Network (PLMN)".
[5] ETS 300 501 (GSM 02.02 version 4.2.2): "European digital cellular
telecommunication system (Phase 2); Bearer Services (BS) supported by a
GSM Public Land Mobile Network (PLMN)".
[6] ETS 300 502 (GSM 02.03 version 4.3.1): "European digital cellular
telecommunication system (Phase 2); Teleservices supported by a GSM Public
Land Mobile Network (PLMN)".
[7] ETS 300 503 (GSM 02.04 version 4.9.1): "European digital cellular
telecommunication system (Phase 2); General on supplementary services".
[8] ETS 300 504 (GSM 02.06 version 4.4.0): "European digital cellular
telecommunication system (Phase 2); Types of Mobile Stations (MS)".
[9] ETS 300 505 (GSM 02.07 version 4.7.0): "European digital cellular
telecommunication system (Phase 2); Mobile Station (MS) features".
[10] ETS 300 507 (GSM 02.11 version 4.8.0): "European digital cellular
telecommunication system (Phase 2); Service accessibility".
[11] ETS 300 508 (GSM 02.16 version 4.5.0): "European digital cellular
telecommunication system (Phase 2); International Mobile station Equipment
Identities (IMEI)".
[12] ETS 300 511 (GSM 02.30 version 4.13.0): "European digital cellular
telecommunication system (Phase 2); Man-Machine Interface (MMI) of the
Mobile Station (MS)".
[13] ETS 300 536 (GSM 03.40 version 4.12.0): "European digital cellular
telecommunication system (Phase 2); Technical realization of the Short
Message Service (SMS) Point to Point (PP)".
[14] ETS 300 537 (GSM 03.41 version 4.11.0): "European digital cellular
telecommunication system (Phase 2); Technical realization of Short Message
Service Cell Broadcast (SMSCB)".

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[15] ETS 300 538 (GSM 03.45 version 4.5.0): "European digital cellular
telecommunication system (Phase 2); Technical realization of facsimile group 3
transparent".
[16] ETS 300 539 (GSM 03.46 version 4.1.2): "European digital cellular
telecommunication system (Phase 2); Technical realization of facsimile group 3
non-transparent".
[17] ETS 300 551 (GSM 04.02 version 4.0.4): "European digital cellular
telecommunication system (Phase 2); GSM Public Land Mobile Network
(PLMN) access reference configuration".
[18] ETS 300 557 (GSM 04.08 version 4.13.0): "European digital cellular
telecommunication system (Phase 2); Mobile radio interface layer 3
specification".
[19] ETS 300 577 (GSM 05.05 version 4.13.0): "European digital cellular
telecommunication system (Phase 2); Radio transmission and reception".
[20] ETS 300 582 (GSM 07.01 version 4.10.0): "European digital cellular
telecommunication system (Phase 2); General on Terminal Adaptation
Functions (TAF) for Mobile Stations (MS)".
3 Abbreviations
ACK ACKnowledgement
ARFCN Absolute Radio Frequency Channel Number
ATR Answer To Reset
ATT ATTach (flag)
BA BCCH Allocation
BC Bearer Capability
BCCH Broadcast Control CHannel
BER Bit Error Ratio
BFI Bad Frame Indication
BTS Base Transceiver Station
CC Call Control
CCH Control CHannel
CCCH Common Control CHannel
CFB Call Forwarding mobile subscriber Busy
CFNRc Call Forwarding MS Not Reachable
CFU Call Forwarding Unconditional
CKSN Ciphering Key Sequence Number
CLK CLocK
CM Connection management
CTR Common Technical Regulations
DCCH Dedicated Control CHannel
DISC DISConnect frame
DM Disconnect Mode (frame)
DRX Discontinuous Reception (mechanism)
DTE Data Terminal Equipment
DTMF Dual Tone Multi Frequency
DTX Discontinuous Transmission (mechanism)
EA Address field Extension bit
EL Length indicator field Extension bit
etu elementary time unit
F Final bit
FACCH Fast Associated Control CHannel
FER Frame Erasure Ratio
HLR Home Location Register
HPLMN Home PLMN
I Information (frame)
IMEI International Mobile station Equipment Identity
IMSI International Mobile Subscriber Identity

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TBR 19: February 1996
L Length indicator
LA Location Area
LAC Location Area Code
LAI Location Area Identification
M More data bit
ME Mobile Equipment
MM Mobility Management
MMI Man Machine Interface
MO Mobile Originated
MOC Mobile Originated Call
MS GSM Mobile Station
MT Mobile Terminated
MTC Mobile Terminated Call
N(R) Receive sequence Number
N(S) Send sequence Number
N(SD) SenD sequence Number
NPI Number Plan Identification
OACSU Off Air Call Set Up
P Poll bit
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
PLMN Public Land Mobile Network
PRC structured PRoCedures
RA Random mode request information field
RACH Random Access CHannel
RAND RANDom number (authentication)
RBER Residual Bit Error Ratio
REJ REJect (frame)
RF Radio Frequency
RMS Root Mean Square (value)
RNR Receiver Not Ready (frame)
RR Radio Resource (management entity / connection)
RR Receive Ready (frame) (in L2)
RST Reset
RXLEV Received signal LEVel
RXQUAL Received signal QUALity
RXQUAL_FULL Received signal QUALity assessed over the FULL set of TDMA frames within a
SACCH block
RXQUAL_SUB Received signal QUALity assessed over a SUBset of 12 TDMA frames
S S counter
SABM Set Asynchronous Balanced Mode (frame)
SACCH Slow Associated Control CHannel
SAPI Service Access Point Identifier
SDCCH Stand-alone Dedicated Control CHannel
SIM Subscriber Identity Module
SMS Short Message Service
SRES Signed RESponse (authentication)
SS System Simulator
TA Terminal Adapter
TCH Traffic CHannel
TCH/FS Full rate Traffic CHannel for Speech
TCH/HS Half rate Traffic CHannel for Speech
TDMA Time Division Multiple Access
TE Terminal Equipment
TI Transaction Identifier
TMSI Temporary Mobile Subscriber Identity
TN Timeslot Number
TON Type Of Number
TXPWR Transmit PoWeR: Tx power level in the MS_TXPWR_REQUEST and
MS_TXPWR_CONF parameters
U Unnumbered (frame)
UA Unnumbered Acknowledge (frame)
UI Unnumbered Information (frame)

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TBR 19: February 1996
V(SD) SenD state Variable
4 Requirements
The following table contains all requirements that are needed to meet the essential requirements as
defined in the Terminal Directive [1]. A justification according to article 4 of the Terminal Directive is given
by stating the relevant categories (c to f) together with a text supporting the justification.
The entries are defined as follows:
− "ETS 300 607-1 Item" defines the item number of the conformance requirement and also the
reference to ETS 300 607-1 (GSM 11.10-1) [2]. This reference is a normative reference to a
subclause of ETS 300 607-1 (GSM 11.10-1) [2] containing the conformance requirement text, and
references to the base standard.

- "Description" contains a short description of the requirement
- "TBR Justification" contains supplementary information to explain the justification of the requirement
according to article 4 of the Terminal Directive [1].
- "TD Cat" defines the category according to article 4 of the Terminal Directive [1].
- “Test Cat” defines whether the requirement is covered by a “special test situation” (e.g. a
manufacturer’s declaration of some form). An “X” indicates a special test situation, whilst, a blank
entry indicates conformity is by the test referred to by this TBR.

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TBR 19: February 1996
Table 1: Requirements and Justifications
ETS 300 607-1 DESCRIPTION TBR JUSTIFICATION TD Cat Test
Item Cat
11.1.1 Verification of support and To ensure that the MS correctly f
non-support of services (MT). accepts BC(s) from the network to
ensure correct interworking with the
network
11.1.2 Verification of support and To ensure that the MS correctly f
non-support of services (MO). reports BC(s) to the network to ensure
correct interworking with the network
11.2 Verification of support of the To ensure correct interworking with a f
single numbering scheme network supporting single numbering
scheme
11.3 Verification of non-support of If the MS incorrectly supports AoCC d,f
services. (Advice of Charge incorrect charging may result. If the
Charging, AOCC) MS incorrectly indicates support of
AoCC the network may not correctly
decide whether access is allowed.
11.4 Verification of non-support of If the MS supports AoCC incorrect f
services. (Call Hold) charging may result If the MS
incorrectly indicates non-support of
call hold.
11.5 Verification of non-support of If the MS supports AoCC incorrect f
services. (MultiParty) charging may result. If the MS
incorrectly indicates non-support of
multi-party.
11.6 Verification of non-support of If a fixed dialling number SIM is d,f X
feature. (Fixed dialling inserted into a MS not rejecting other
number) call setups, calls may be made (and
charged) to non-authorised numbers.
11.7 IMEI security If an IMEI could be changed without d X
authorisation security mechanisms
based on the IMEI would not work.
12.1.1 Conducted spurious Non compliance in this area may
e
emissions - MS allocated a cause interference to other spectrum
channel users.
12.1.2 Conducted spurious Non compliance in this area may e
emissions - MS in idle mode cause interference to other spectrum
users.
12.2.1 Radiated spurious emissions Non compliance in this area may e
- MS allocated a channel cause interference to other spectrum
users.
12.2.2 Radiated spurious emissions Non compliance in this area may e
- MS in idle mode cause interference to other spectrum
users.
13.1 Transmitter - Frequency error Non Compliance in this area may e
and phase error impair establishment and the
maintaining of the call.
13.2 Transmitter - Frequency error Non Compliance in this area may e
under multipath and impair establishment and the
interference conditions maintaining of the call.
13.3-1 Transmitter output power and Non Compliance in this area may e
burst timing - MS with impair establishment and the
permanent antenna connector maintaining of the call or may cause
interference to other spectrum users.

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TBR 19: February 1996
Table 1: Requirements and Justifications (continued)
ETS 300 607-1 DESCRIPTION TBR JUSTIFICATION TD Cat Test
Item Cat
13.3-2 Transmitter output power and Non Compliance in this area may e X
burst timing - MS with integral impair establishment and the
antenna maintaining of the call or may cause
interference to other spectrum users.
13.4 Transmitter - Output RF Non compliance in this area may e
spectrum cause interference to other spectrum
users.
14.1.1.1 Receiver / Bad Frame Non compliance in this area may e X
Indication - TCH/FS - degrade speech quality.
Random RF input
14.1.1.2 Receiver / Bad Frame Non compliance in this area may e
Indication - TCH/FS - degrade speech quality.
Frequency hopping and
downlink DTX
14.1.2.1 Receiver / Bad Frame Non compliance in this area may e X
Indication - TCH/HS - degrade speech quality.
Random RF input
14.1.2.2 Receiver / Bad Frame Non compliance in this area may e
Indication - TCH/HS - degrade speech quality.
Frequency hopping and
downlink DTX
14.2.1 Receiver / Reference Non compliance in this area may
f
sensitivity - TCH/FS degrade speech quality and may
impair call maintenance.
14.2.2 Receiver / Reference Non compliance in this area may f
sensitivity - TCH/HS degrade speech quality and may
impair call maintenance.
14.2.3 Receiver / Reference Non Compliance in this area may f
sensitivity - FACCH/F impair establishment and the
maintaining of the call.
14.2.4 Receiver / Reference Non Compliance in this area may f
sensitivity - FACCH/H impair establishment and the
maintaining of the call.
14.2.5 Receiver / Reference Non Compliance in this area may f X
sensitivity - full rate data impair establishment and the
channels maintaining of the call.
14.2.6 Receiver / Reference Non Compliance in this area may f X
sensitivity - half rate data impair establishment and the
channels maintaining of the call.
14.3 Receiver / Usable receiver Non compliance in this area may e
input level range degrade speech quality and may
impair call maintenance.
14.4.1 Co-channel rejection - Non compliance in this area may e
TCH/FS degrade speech quality and may
impair call maintenance.
14.4.2 Co-channel rejection - Non compliance in this area may f
TCH/HS (speech frames) degrade speech quality and may
impair call maintenance.
14.4.4 Co-channel rejection - Non Compliance in this area may f
FACCH/F impair establishment and the
maintaining of the call.
14.4.5 Co-channel rejection - Non Compliance in this area may f
FACCH/H impair establishment and the
maintaining of the call.

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TBR 19: February 1996
Table 1: Requirements and Justifications (continued)
ETS 300 607-1 DESCRIPTION TBR JUSTIFICATION TD Cat Test
Item Cat
14.5.1 Adjacent channel rejection - Non compliance in this area may e
speech channels degrade speech quality and may
impair call maintenance.
14.5.2 Adjacent channel rejection - Non Compliance in this area may f
control channels impair establishment and the
maintaining of the call.
14.6.1 Intermodulation rejection - Non compliance in this area may e
speech channels degrade speech quality and may
impair call maintenance.
14.6.2 Intermodulation rejection - Non Compliance in this area may
f
control channels impair establishment and the
maintaining of the call.
14.7.1 Blocking and spurious Non compliance in this area may e
response - speech channels degrade speech quality and may
impair call maintenance.
14.7.2 Blocking and spurious Non Compliance in this area may f X
response - control channels impair establishment and the
maintaining of the call.
14.8.1 AM suppression - speech Non compliance in this area may f
channels impair establishment and
maintenance of the call
14.8.2 AM suppression - control Non compliance in this area may f
channels impair establishment and
maintenance of the call
15 Timing advance and absolute If the timing advance is set or reported f
delay wrongly the establishment or
maintenance of a connection may be
disturbed. Calls on adjacent timeslots
may be disturbed.
16 Reception time tracking If the MS does not respond correctly f
speed to changes in timing, the call may drop
or interference may be caused to
other users.
17.1 Access times during There may be an unacceptable f
handover - Intra cell channel audible break in the speech if this time
change is exceeded.
17.2 Access times during Tp1/2: There may be an unacceptable f
handover - Inter cell handover audible break in the speech if this time
is exceeded. Tp3/4: The call may drop
if these requirements are not met.
18 Temporary reception gaps Non Compliance in this area may f
impair the holding of the connection.
19.1 Channel release after Failure in these requirements will e,f
unrecoverable errors - 1 result in incorrect call holding and
clearance performance in marginal RF
signal conditions.
19.2 Channel release after Failure in these requirements will e,f
unrecoverable errors - 2 result in incorrect call holding and
clearance performance in marginal RF
signal conditions.
19.3 Channel release after Failure in these requirements will
e,f
unrecoverable errors - 3 result in incorrect call holding and
clearance performance in marginal RF
signal conditions.

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TBR 19: February 1996
Table 1: Requirements and Justifications (continued)
ETS 300 607-1 DESCRIPTION TBR JUSTIFICATION TD Cat Test
Item Cat
20.1 Cell Selection An MS which does not select the e,f
correct cell at switch on, may not
camp onto the optimum cell for
establishing a connection with the
network, or may not offer service at all
20.2 Cell selection with varying An MS which incorrectly averages
e,f
signal strength values. signal strength values during cell
selection, may not camp onto the
optimum cell for establishing a
connection with the network
20.3 Basic Cell Reselection An MS which reselects cells d,e,f
incorrectly, may not camp onto the
optimum cell for establishing a
connection with the network
20.4 Cell reselection using An MS which reselects cells
d,e,f
TEMPORARY_OFFSET, incorrectly, may not camp onto the
CELL_RESELECT_OFFSET optimum cell for establishing a
and PENALTY_TIME connection with the network
parameters
20.5 Cell reselection using An MS which reselects incorrectly, d,e,f
parameters transmitted in the may not camp onto the optimum cell
SYSTEM INFORMATION for establishing a connection with the
TYPE 2bis, 7 and 8 network
messages
20.6 Cell Reselection Timings An MS which reselects cells d,e,f
incorrectly, may not camp onto the
optimum cell for establishing a
connection with the network
20.7 Priority of Cells An MS which reselects cells d,e,f
incorrectly, may not camp onto the
optimum cell for establishing a
connection with the network. Too
frequent reselections may cause
increased network signalling load at
LA boundaries, or missed paging
messages
20.8 Cell Reselection when C1 An MS that selects a cell of incorrect d,e,f
(serving cell) < 0 for 5 secs priority or incorrectly uses the cell
selection parameters, may not camp
onto the optimum cell for establishing
a connection with the network
20.9 Running average of An MS which incorrectly calculates the d,e,f
surrounding cell BCCH carrier C1 parameter may not camp onto the
signal levels optimum cell for establishing a
connection with the network, Too
frequent reselections may cause
increased network signalling load at
LA boundaries, or missed paging
messages

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TBR 19: February 1996
Table 1: Requirements and Justifications (continued)
ETS 300 607-1 DESCRIPTION TBR JUSTIFICATION TD Cat Test
Item Cat
20.10 Running average of serving An MS which incorrectly averages d,e,f
cell BCCH carrier signal level signal levels may not camp onto the
optimum cell for establishing a
connection with the network, Too
frequent reselections may cause
increased network signalling load at
LA boundaries, or missed paging
messages
20.11 Updating list of 6 strongest An MS which incorrectly averages d,e,f
neighbour carriers and signal levels may not camp onto the
decoding BCCH info of a new optimum cell for establishing a
carrier on the list. connection with the network, Too
frequent reselections may cause
increased network signalling load at
LA boundaries, or missed paging
messages
20.12 Decoding the BCCH An MS that fails to decode the BCCHs d,e,f
information of the neighbour of surrounding cells correctly, may not
carriers on the list of six reselect the optimum cell for
strongest neighbour carriers. establishing a connection with the
network., This may cause increased
network signalling load at LA
boundaries
20.13 Decoding the BSIC
...