ETSI TS 145 002 V13.0.0 (2016-01)

Digital cellular telecommunications system (Phase 2+) (GSM); Multiplexing and multiple access on the radio path (3GPP TS 45.002 version 13.0.0 Release 13)

RTS/TSGG-0145002vd00

General Information

• Status: Published
• Publication Date: 21-Jan-2016
• Technical Committee: 3GPP GERAN 1 - Radio aspects
• Current Stage: 12 - Completion
• Completion Date: 22-Jan-2016

Standards Content (Sample)

ETSI TS 1145 002 V13.0.0 (201616-01)

TECHNICAL SPECIFICATIONION
Digital cellular telecommmmunications system (Phase e 2+) (GSM);
Multiplexing and m multiple access on the radioio path
(3GPP TS 45.0.002 version 13.0.0 Release 13 13)

3GPP TS 45.002 version 13.0.0 Release 13 1 ETSI TS 145 002 V13.0.0 (2016-01)

Reference
RTS/TSGG-0145002vd00
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3GPP TS 45.002 version 13.0.0 Release 13 2 ETSI TS 145 002 V13.0.0 (2016-01)
Intellectual Property Rights
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 SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI 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 ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
http://webapp.etsi.org/key/queryform.asp.
Modal 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" are NOT allowed in ETSI deliverables except when used in direct citation.
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Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 7
1 Scope . 8
1.1 References . 8
1.2 Abbreviations . 9
1.3 Restrictions . 9
2 General . 9
3 Logical channels . 9
3.1 General . 9
3.2 Traffic channels . 10
3.2.1 General . 10
3.2.2 Speech traffic channels . 10
3.2.3 Circuit switched data traffic channels . 11
3.2.4 Packet data traffic channels (PDTCH) . 11
3.3 Control channels . 12
3.3.1 General . 12
3.3.2 Broadcast channels . 12
3.3.2.1 Frequency correction channels (FCCH and CFCCH) . 12
3.3.2.2 Synchronization channels . 12
3.3.2.2.1 Synchronization channel (SCH) . 12
3.3.2.2.2 COMPACT synchronization channel (CSCH) . 12
3.3.2.3 Broadcast control channel (BCCH) . 13
3.3.2.4 Packet Broadcast Control Channels . 13
3.3.2.4.1 Packet Broadcast Control Channel (PBCCH) . 13
3.3.2.4.2 COMPACT Packet Broadcast Control Channel (CPBCCH) . 14
3.3.3 Common control type channels . 14
3.3.3.1 Common control type channels, known when combined as a common control channel (CCCH) . 14
3.3.3.2 Packet Common control channels . 15
3.3.3.2.1 Packet Common Control Channels (PCCCH) . 15
3.3.3.2.2 COMPACT Common Control Channels (CPCCCH) . 15
3.3.3.2.3 MBMS Common Control Channels . 15
3.3.4 Dedicated control channels . 15
3.3.4.1 Circuit switched dedicated control channels . 15
3.3.4.2 Packet dedicated control channels . 16
3.3.5 Cell Broadcast Channel (CBCH) . 16
3.3.6 CTS control channels . 16
3.3.6.1 CTS beacon channel (BCH) . 16
3.3.6.2 CTS paging channel (CTSPCH) . 17
3.3.6.3 CTS access request channel (CTSARCH) . 17
3.3.6.4 CTS access grant channel (CTSAGCH) . 17
3.4 Combination of channels . 17
4 The physical resource . 17
4.1 General . 17
4.2 Radio frequency channels. 17
4.2.1 Cell allocation and mobile allocation. 17
4.2.2 Downlink and uplink . 17
4.3 Timeslots, TDMA frames, and time groups . 17
4.3.1 General . 17
4.3.2 Timeslot number . 18
4.3.3 TDMA frame number . 18
4.3.4 Time group. 18
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5 Physical channels . 19
5.1 General . 19
5.2 Bursts . 19
5.2.1 General . 19
5.2.2 Types of burst and burst timing . 19
5.2.3 Normal burst (NB) . 20
5.2.3a Higher symbol rate burst (HB) . 26
5.2.4 Frequency correction burst (FB) . 29
5.2.5 Synchronization Burst (SB) . 30
5.2.6 Dummy burst . 30
5.2.7 Access burst (AB) . 31
5.2.8 Guard period . 31
5.3 Physical channels and bursts . 31
5.4 Radio frequency channel sequence . 31
5.5 Timeslot and TDMA frame sequence . 32
5.6 Parameters for channel definition and assignment . 32
5.6.1 General . 32
5.6.2 General parameters . 32
5.6.3 Specific parameters . 32
6 Mapping of logical channels onto physical channels . 33
6.1 General . 33
6.2 Mapping in frequency of logical channels onto physical channels . 33
6.2.1 General . 33
6.2.2 Parameters. 33
6.2.3 Hopping sequence generation . 34
6.2.4 Specific cases . 35
6.2.5 Change in the frequency allocation of a base transceiver station. 36
6.2.6 Frequency assignment in CTS . 36
6.2.7 Mapping restrictions in downlink multi-carrier configurations . 36
6.3 Mapping in time of logical channels onto physical channels . 37
6.3.1 Mapping in time of circuit switched logical channels onto physical channels . 37
6.3.1.1 General . 37
6.3.1.2 Key to the mapping table of clause 7 . 37
6.3.1.3 Mapping of BCCH data . 38
6.3.1.4 Mapping of SID Frames . 40
6.3.2 Mapping in time of packet logical channels onto physical channels . 40
6.3.2.1 General . 40
6.3.2.2 Mapping of the uplink channels . 41
6.3.2.2.1 Mapping of uplink packet traffic channel (PDTCH/U) and PACCH/U . 41
6.3.2.2.1.1 BTTI configuration . 41
6.3.2.2.1.2 RTTI configuration . 42
6.3.2.2.2 Mapping of the Packet Timing Advance Control Channel (PTCCH/U) . 43
6.3.2.2.3 Mapping of the uplink PCCCH i.e. PRACH . 43
6.3.2.2.3a Mapping of the COMPACT uplink CPCCCH i.e. CPRACH . 43
6.3.2.2.4 Mapping of the MBMS uplink MPRACH . 43
6.3.2.3 Mapping of the downlink channels . 44
6.3.2.3.1 Mapping of the (PDTCH/D) and PACCH/D . 44
6.3.2.3.2 Mapping of the PTCCH/D . 44
6.3.2.3.3 Mapping of the PBCCH . 44
6.3.2.3.3a Mapping of the COMPACT CPBCCH . 44
6.3.2.3.4 Mapping of the PCCCH . 44
6.3.2.3.4a Mapping of the COMPACT CPCCCH . 45
6.3.2.4 Mapping of PBCCH data . 45
6.3.2.4a Mapping of COMPACT CPBCCH data . 46
6.3.3 Mapping in time of CTS control channels onto physical channels . 46
6.3.3.1 CTSBCH timeslot assignment . 46
6.3.3.2 CTSPCH, CTSARCH and CTSAGCH timeslot assignment . 48
6.4 Permitted channel combinations . 48
6.4.1 Permitted channel combinations onto a basic physical channel. 48
6.4.2 Multislot configurations . 52
6.4.2.1 Multislot configurations for circuit switched connections in A/Gb mode . 52
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6.4.2.2 Multislot configurations for packet switched connections in A/Gb mode . 53
6.4.2.3 Multislot configurations for dual transfer mode in A/Gb mode . 56
6.4.2.3a Multislot configurations for MBMS in A/Gb mode . 57
6.4.2.4 Multislot configurations for DBPSCH in Iu mode . 58
6.4.2.4.1 TCHs assigned . 58
6.4.2.4.2 PDTCHs assigned . 58
6.4.2.4.3 TCHs and PDTCHs assigned . 58
6.4.2.5 void . 58
6.4.2.6 Multislot configurations for SBPSCH in Iu mode . 58
6.4.2.7 Multislot configurations for dual transfer mode in Iu mode . 58
6.5 Operation of channels and channel combinations . 59
6.5.1 General . 59
6.5.2 Determination of CCCH_GROUP and PAGING_GROUP for MS in idle mode . 62
6.5.2a Determination of CCCH_GROUP and PAGING_GROUP for MS in idle mode when using extended
DRX cycles . 62
6.5.3 Determination of specific paging multiframe and paging block index . 62
6.5.4 Short Message Service Cell Broadcast (SMSCB) . 62
6.5.5 Voice group and voice broadcast call notifications . 63
6.5.6 Determination of PCCCH_GROUP and PAGING_GROUP for MS in GPRS attached mode . 63
6.5.6a Determination of extended DRX cycle for MS in GPRS attached mode. 64
6.5.7 Determination of CTS_PAGING_GROUP and specific paging 52-multiframe for MS in CTS mode . 64
6.5.8 Determination of single carrier fallback group . 65
7 Mapping tables . 66
8 Flexible layer one . 90
8.1 General . 90
8.2 Transport channels . 90
8.3 Mapping of transport channels onto physical channels . 90
8.3.1 General . 90
8.3.2 Mapping in frequency of transport channels onto physical channels . 90
8.3.3 Mapping in time of transport channels onto physical channels . 90
8.3.4 Permitted channel combinations onto a basic physical subchannel . 93
8.3.5 Multislot configurations . 94
8.3.5.1 Multislot configurations for DBPSCHs assigned . 94
8.3.5.2 Multislot configurations for dual transfer mode in Iu mode . 94
Annex A (normative): Phase 2 mobiles in a Phase 1 infrastructure . 95
A.1 Scope . 95
A.2 Implementation options for TCH channels . 95
A.2.1 C0 filling on the TCH . 95
A.2.1.1 A dummy burst with (BN61, BN62, BN86) = training sequence bits of normal bursts . 95
A.2.1.2 A dummy burst with the "C0 filling training sequence. 95
A.2.1.3 A dummy burst with ( BN61, BN62, BN86) mapped from the TSC bits of normal bursts according
to the table. 95
A.2.1.4 Partial SID information . 95
A.2.2 Half burst filling . 95
A.2.2.1 Partial SID information from any associated SID frame; or . 96
A.2.2.2 The mixed bits of the dummy bursts (encrypted or not encrypted) . 96
A.2.3 Dummy burst Stealing flag . 96
A.2.4 Half burst Filling Stealing flag . 96
A.2.5 Allowed combinations . 96
A.3 Idle Channels . 96
Annex B (normative): Multislot capability . 97
B.1 MS classes for multislot capability . 97
B.2 Constraints imposed by the service selected . 99
B.3 Network requirements for supporting MS multislot classes . 99
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B.4 Multislot capabilities for dual carrier mobile stations . 101
B.5 Multislot capabilities when EFTA is used. 103
B.6 Multislot capabilities for Downlink Multi Carrier mobile stations . 104
Annex C (informative): CTSBCH Timeslot shifting example . 105
Annex D (informative): COMPACT multiframe structure examples . 106
Annex E (informative): Example illustrations of neighbour cell measurements for downlink
dual carrier MS . 114
Annex F (informative): Illustration of mapping restrictions in Downlink Multi Carrier . 115
Annex G (informative): Change history . 118
History . 122

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Foreword
rd
This Technical Specification has been produced by the 3 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.
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1 Scope
The present document defines the physical channels of the radio sub-system required to support the logical channels.
For the Flexible Layer One, it defines the physical channels of the radio sub-system required to support the transport
channels. It includes a description of the logical channels, transport channels and the definition of frequency hopping,
TDMA frames, timeslots and bursts.
1.1 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 21.905: "Vocabulary for 3GPP Specifications ".
[2] 3GPP TS 23.003: "Numbering, addressing and identification".
[3] 3GPP TS 23.034: 'High Speed Circuit Switched Data (HSCSD) – Stage 2'.
[4] 3GPP TS 43.052: "GSM Cordless Telephony System (CTS), Phase 1; Lower layers of the CTS
Radio Interface; Stage 2".
[5] 3GPP TS 43.059: 'Functional stage 2 description of Location Services (LCS) in GERAN'.
[6] 3GPP TS 43.064: "General Packet Radio Service (GPRS); Overall description of the GPRS Radio
Interface; Stage 2".
[7] 3GPP TS 43.246: "Multimedia Broadcast Multicast Service (MBMS) in the GERAN; Stage 2".
[8] 3GPP TS 44.003: "Mobile Station - Base Station System (MS - BSS) interface Channel structures
and access capabilities".
[9] 3GPP TS 44.006: "Mobile Station - Base Station System (MS - BSS) interface Data Link (DL)
layer specification".
[10] 3GPP TS 44.018: "Mobile radio interface layer 3 specification, Radio Resource Control Protocol".
[11] 3GPP TS 44.060: "General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station
System (BSS interface; Radio Link Control (RLC) and Medium Access Control (MAC) Layer
Specification".
[12] 3GPP TS 44.056: "GSM Cordless Telephony System (CTS), Phase 1; CTS radio interface layer 3
specification".
[13] 3GPP TS 45.003: "Channel coding".
[14] 3GPP TS 45.004: "Modulation".
[15] 3GPP TS 45.005: "Radio transmission and reception".
[16] 3GPP TS 45.008: "Radio subsystem link control".
[17] 3GPP TS 45.010: "Radio subsystem synchronization".
[18] 3GPP TS 45.056: "GSM Cordless Telephony System (CTS), Phase 1; CTS-FP radio subsystem".
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[19] 3GPP TR 45.902: 'Flexible Layer One'.
[20] 3GPP TS 46.031: 'Discontinuous Transmission (DTX) for full rate speech traffic channels'.
[21] 3GPP TS 24.008: "Mobile Radio Interface Layer 3 specification; Core Network Protocols -
Stage 3".
[22] 3GPP TS 23.060: "General Packet Radio Service (GPRS); Service Description; Stage 2".
1.2 Abbreviations
Abbreviations used in the present document are listed in 3GPP TR 21.905. In addition to abbreviations in 3GPP TR
21.905, the following abbreviations are applied:
BTTI Basic Transmission Time Interval
FANR Fast Ack/Nack Reporting
RTTI Reduced Transmission Time Interval
TTI Transmission Time Interval
1.3 Restrictions
Independently of what is stated elsewhere in this and other 3GPP specifications, mobile station support for PBCCH and
PCCCH is optional for A/Gb-mode of operation. The network shall never enable PBCCH and PCCCH.
2 General
The radio subsystem is required to support a certain number of logical channels that can be separated into two
categories as defined in 3GPP TS 44.003:
i) the traffic channels (TCH's);
ii) the control channels.
More information is given about these logical channels in clause 3 which also defines a number of special channels used
by the radio sub-system.
Clause 4 of this document describes the physical resource available to the radio sub-system, clause 5 defines physical
channels based on that resource and clause 6 specifies how the logical channels shall be mapped onto physical channels.
Figure 1 depicts this process.
With the Flexible Layer One (FLO), the radio subsystem is required to support transport channels (see 3GPP TR
45.902). Clause 8 of this document describes the mapping and multiplexing principles that are specific to FLO. Because
FLO offers transport channels instead of logical channels, any reference to logical channels, with the exception of
SACCH, does not apply to FLO. Otherwise, and unless otherwise stated, the multiplexing principles described in this
document are equally applicable to FLO (e.g. physical resource and physical channels).
3 Logical channels
3.1 General
This subclause describes the logical channels that are supported by the radio subsystem.
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3.2 Traffic channels
3.2.1 General
Traffic channels (TCH's) are intended to carry either encoded speech or user data in circuit switched mode. Five general
forms of traffic channel are defined:
i) Full rate traffic channel (TCH/F). This channel carries information at a gross rate of 22,8 kbit/s.
ii) Half rate traffic channel (TCH/H). This channel carries information at a gross rate of 11,4 kbit/s.
iii) Enhanced circuit switched full rate traffic channel (E-TCH/F). This channel carries information at a gross rate of
69,6 kbit/s including the stealing symbols.
iv) 8-PSK full rate traffic channel (O-TCH/F). This channel carries information at a gross rate of 68,4 kbit/s.
v) 8-PSK half rate traffic channel (O-TCH/H). This channel carries information at a gross rate of 34,2 kbit/s.
Packet data traffic channels (PDTCH's) are intended to carry user data in packet switched mode. For the purpose of this
EN, any reference to traffic channel does not apply to PDTCH unless explicitly stated.
All traffic channels are bi-directional unless otherwise stated. Unidirectional downlink full rate channels, TCH/FD, are
defined as the downlink part of the corresponding TCH/F.
Multiple full rate channels can be assigned to the same MS. This is referred to as multislot configurations, which is
defined in subclause 6.4.2.1.
Multiple packet data traffic channels can be assigned to the same MS or, in the case of point-to-multipoint transmission,
a group of MSs. This is referred to as multislot packet configurations, as defined in subclause 6.4.2.2 and subclause
6.4.2.3a.
A combination of a half rate traffic channel and a half rate packet data traffic channel on the same basic physical
channel can be assigned to the same MS as defined in subclause 6.4.2.3.
A combination of a traffic channel and one or more full rate packet data traffic channels can be assigned to the same
MS.
A pair of speech traffic channels along with their associated control channels sharing the same timeslot number (see
subclause 4.3), ARFCN (see subclause 6.2.3) and TDMA frame number (see subclause 4.3) is referred to as a VAMOS
pair. The speech traffic channels along with their associated control channels in a VAMOS pair are said to be in VAMOS
mode and are referred to as VAMOS subchannels.
In case of speech traffic channels in VAMOS mode, up to 4 speech traffic channels can be mapped on the same basic
physical channel both in downlink and uplink (see subclause 6.4.1).
The specific traffic channels available in the categories of speech and user data are defined in the subclauses following.
3.2.2 Speech traffic channels
The following traffic channels are defined to carry encoded speech:
i) full rate traffic channel for speech (TCH/FS);
ii) half rate traffic channel for speech (TCH/HS);
iii) enhanced full rate traffic channel for speech (TCH/EFS);
iv) adaptive full rate traffic channel for speech (TCH/AFS);
v) adaptive half rate traffic channel for speech (TCH/AHS);
vi) adaptive full rate traffic channel for wideband speech (TCH/WFS);
vii) adaptive half rate 8PSK traffic channel for speech (O-TCH/AHS);
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viii) adaptive full rate 8PSK traffic channel for wideband speech (O-TCH/WFS);
ix) adaptive half rate 8PSK traffic channel for wideband speech (O-TCH/WHS).
3.2.3 Circuit switched data traffic channels
The following traffic channels are defined to carry user data:
i) full rate traffic channel for 9,6 kbit/s user data (TCH/F9.6);
ii) full rate traffic channel for 4,8 kbit/s user data (TCH/F4.8);
iii) half rate traffic channel for 4,8 kbit/s user data (TCH/H4.8);
iv) half rate traffic channel for ≤ 2,4 kbit/s user data (TCH/H2.4);
v) full rate traffic channel for ≤ 2,4 kbit/s user data (TCH/F2.4);
vi) full rate traffic channel for 14,4 kbit/s user data (TCH/F14.4);
vii) enhanced circuit switched full rate traffic channel for 28,8 kbit/s user data (E-TCH/F28.8);
viii) enhanced circuit switched full rate traffic channel for 32,0 kbit/s user data (E-TCH/F32.0);
ix) enhanced circuit switched full rate traffic channel for 43.2 kbit/s user data (E-TCH/F43.2).
3.2.4 Packet data traffic channels (PDTCH)
A PDTCH/F corresponds to the resource assigned to a single MS or, in the case of point-to-multipoint transmission, to
multiple MSs for user data transmission. In BTTI configuration, a PDTCH/F is mapped onto one physical channel (see
subclause 6.3.2.1). Due to the dynamic multiplexing onto the same physical channel of different logical channels (see
subclause 6.3.2), a PDTCH/F in BTTI configuration carries information at an instantaneous bit rate ranging from 0 to a
maximum value dependent on the modulation and on the symbol rate, as given in the following table.

Modulation Maximum instantaneous bit rate (kbit/s) when using Maximum instantaneous bit rate (kbit/s) when
the normal symbol rate (see 3GPP TS 45.004) using the higher symbol rate (see
3GPP TS 45.004)
GMSK 22,8 -
QPSK - 55,2
8-PSK 69,6 -
16QAM 92,8 110,4
32QAM 116,0 138,0
In RTTI configuration, a PDTCH/F is mapped onto two physical channels, i.e. a PDCH-pair (see subclause 6.3.2.1). A
PDTCH/F in RTTI configuration carries information at an instantaneous bit rate ranging from 0 to a maximum value
which is double the corresponding value for that modulation and the symbol rate.
A PDTCH/H corresponds to the resource assigned to a single MS on half a physical channel for user data transmission.
The maximum instantaneous bit rate for a PDTCH/H is half that for a PDTCH/F. A PDTCH/H is only possible in BTTI
configuration if FANR is not activated (see 3GPP TS 44.060).
All packet data traffic channels are uni-directional, either uplink (PDTCH/U), for a mobile originated packet transfer or
downlink (PDTCH/D) for a mobile terminated packet transfer.
In the case of point-to-multipoint transmission, a PDTCH/D can be used for communication with multiple MSs.
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3.3 Control channels
3.3.1 General
Control channels are intended to carry signalling or synchronization data. Four categories of control channel are
defined: broadcast, common, dedicated and CTS control channels. Specific channels within these categories are defined
in the subclauses following.
3.3.2 Broadcast channels
3.3.2.1 Frequency correction channels (FCCH and CFCCH)
The frequency correction channel carries information for frequency correction of the mobile station. It is required only
for the operation of the radio sub-system. Different mapping is used for FCCH and COMPACT CFCCH (see clause 7).
3.3.2.2 Synchronization channels
The synchronization channel carries information for frame synchronization of the mobile station and identification of a
base transceiver station. It is required only for the operation of the radio sub-system. Different channels are used for
SCH and COMPACT CSCH.
3.3.2.2.1 Synchronization channel (SCH)
Specifically the synchronization channel (SCH) shall contain two encoded parameters:
a) Base transceiver station identity code (BSIC): 6 bits (before channel coding) consists of 3 bits of PLMN c
...