Universal Mobile Telecommunications System (UMTS); Physical channels and mapping of transport channels onto physical channels (FDD) (3GPP TS 25.211 version 8.7.0 Release 8)

RTS/TSGR-0125211v870

General Information

Status
Published
Publication Date
10-Oct-2010
Current Stage
12 - Completion
Due Date
15-Oct-2010
Completion Date
11-Oct-2010
Ref Project
Standard
ETSI TS 125 211 V8.7.0 (2010-10) - Universal Mobile Telecommunications System (UMTS); Physical channels and mapping of transport channels onto physical channels (FDD) (3GPP TS 25.211 version 8.7.0 Release 8)
English language
60 pages
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Technical Specification
Universal Mobile Telecommunications System (UMTS);
Physical channels and mapping of transport
channels onto physical channels (FDD)
(3GPP TS 25.211 version 8.7.0 Release 8)

3GPP TS 25.211 version 8.7.0 Release 8 1 ETSI TS 125 211 V8.7.0 (2010-10)

Reference
RTS/TSGR-0125211v870
Keywords
UMTS
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ETSI
3GPP TS 25.211 version 8.7.0 Release 8 2 ETSI TS 125 211 V8.7.0 (2010-10)
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
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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.
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 3 ETSI TS 125 211 V8.7.0 (2010-10)
Contents
Intellectual Property Rights . 2
Foreword . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Symbols and abbreviations . 7
3.1 Symbols . 7
3.2 Abbreviations . 7
4 Services offered to higher layers . 8
4.1 Transport channels . 8
4.1.1 Dedicated transport channels . 8
4.1.1.1 DCH - Dedicated Channel . 8
4.1.1.2 E-DCH – Enhanced Dedicated Channel . 8
4.1.2 Common transport channels . 8
4.1.2.1 BCH - Broadcast Channel . 8
4.1.2.2 FACH - Forward Access Channel . 8
4.1.2.3 PCH - Paging Channel . 8
4.1.2.4 RACH - Random Access Channel . 9
4.1.2.5 Void. 9
4.1.2.6 Void. 9
4.1.2.7 HS-DSCH – High Speed Downlink Shared Channel . 9
4.1.2.7A E-DCH - Enhanced Dedicated Channel . 9
4.2 Indicators . 9
5 Physical channels and physical signals . 9
5.1 Physical signals . 10
5.2 Uplink physical channels . 10
5.2.1 Dedicated uplink physical channels . 10
5.2.1.1 DPCCH and DPDCH . 10
5.2.1.2 HS-DPCCH . 13
5.2.1.3 E-DPCCH and E-DPDCH . 13
5.2.2 Common uplink physical channels . 15
5.2.2.1 Physical Random Access Channel (PRACH) . 15
5.2.2.1.1 Overall structure of random-access transmission . 15
5.2.2.1.2 RACH preamble part . 15
5.2.2.1.3 RACH message part . 16
5.2.2.2 Void. 17
5.3 Downlink physical channels . 17
5.3.1 Downlink transmit diversity . 17
5.3.1.1 Open loop transmit diversity . 19
5.3.1.1.1 Space time block coding based transmit antenna diversity (STTD) . 19
5.3.1.1.2 Time Switched Transmit Diversity for SCH (TSTD) . 21
5.3.1.2 Closed loop transmit diversity. 21
5.3.2 Dedicated downlink physical channels . 21
5.3.2.1 STTD for DPCH and F-DPCH. 25
5.3.2.2 Dedicated channel pilots with closed loop mode transmit diversity . 26
5.3.2.3 Void. 27
5.3.2.4 E-DCH Relative Grant Channel . 27
5.3.2.5 E-DCH Hybrid ARQ Indicator Channel . 29
5.3.2.6 Fractional Dedicated Physical Channel (F-DPCH) . 29
5.3.3 Common downlink physical channels . 30
5.3.3.1 Common Pilot Channel (CPICH) . 30
5.3.3.1.1 Primary Common Pilot Channel (P-CPICH) . 31
5.3.3.1.2 Secondary Common Pilot Channel (S-CPICH) . 31
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 4 ETSI TS 125 211 V8.7.0 (2010-10)
5.3.3.2 Downlink phase reference . 32
5.3.3.3 Primary Common Control Physical Channel (P-CCPCH) . 33
5.3.3.3.1 Primary CCPCH structure with STTD encoding . 34
5.3.3.4 Secondary Common Control Physical Channel (S-CCPCH) . 34
5.3.3.4.1 Secondary CCPCH structure with STTD encoding . 37
5.3.3.5 Synchronisation Channel (SCH) . 37
5.3.3.5.1 SCH transmitted by TSTD . 38
5.3.3.6 Void. 38
5.3.3.7 Acquisition Indicator Channel (AICH) . 38
5.3.3.8 Void. 42
5.3.3.9 Void. 42
5.3.3.10 Paging Indicator Channel (PICH) . 42
5.3.3.11 Void. 43
5.3.3.12 Shared Control Channel (HS-SCCH) . 43
5.3.3.13 High Speed Physical Downlink Shared Channel (HS-PDSCH) . 43
5.3.3.14 E–DCH Absolute Grant Channel (E-AGCH) . 44
5.3.3.15 MBMS Indicator Channel (MICH) . 44
6 Mapping and association of physical channels . 45
6.1 Mapping of transport channels onto physical channels . 45
6.2 Association of physical channels and physical signals . 46
7 Timing relationship between physical channels . 47
7.1 General . 47
7.2 PICH/S-CCPCH timing relation . 48
7.2A PICH/HS-SCCH timing relation . 48
7.3 PRACH/AICH timing relation . 49
7.3A UL/DL timing relation for Enhanced Uplink in CELL_FACH state and IDLE mode . 50
7.4 Void . 51
7.5 Void . 51
7.6 DPCCH/DPDCH timing relations . 51
7.6.1 Uplink . 51
7.6.2 Downlink . 51
7.6.3 Uplink/downlink timing at UE. 51
7.7 Uplink DPCCH/HS-DPCCH/HS-PDSCH timing at the UE . 51
7.8 HS-SCCH/HS-PDSCH timing . 52
7.9 MICH/S-CCPCH timing relation . 52
7.10 E-HICH/P-CCPCH/DPCH timing relation . 53
7.11 E-RGCH/P-CCPCH/DPCH timing relation . 53
7.12 E-AGCH/P-CCPCH timing relation . 54
7.13 E-DPDCH/E-DPCCH/DPCCH timing relation . 54
Annex A (informative): Change history . 55
History . 59

ETSI
3GPP TS 25.211 version 8.7.0 Release 8 5 ETSI TS 125 211 V8.7.0 (2010-10)
Foreword
rd
This Technical Specification (TS) 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.
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 6 ETSI TS 125 211 V8.7.0 (2010-10)
1 Scope
The present document describes the characteristics of the Layer 1 transport channels and physicals channels in the FDD
mode of UTRA. The main objectives of the document are to be a part of the full description of the UTRA Layer 1, and
to serve as a basis for the drafting of the actual technical specification (TS).
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 TS 25.201: "Physical layer - general description".
[2] 3GPP TS 25.211: "Physical channels and mapping of transport channels onto physical channels
(FDD)".
[3] 3GPP TS 25.212: "Multiplexing and channel coding (FDD)".
[4] 3GPP TS 25.213: "Spreading and modulation (FDD)".
[5] 3GPP TS 25.214: "Physical layer procedures (FDD)".
[6] 3GPP TS 25.221: "Transport channels and physical channels (TDD)".
[7] 3GPP TS 25.222: "Multiplexing and channel coding (TDD)".
[8] 3GPP TS 25.223: "Spreading and modulation (TDD)".
[9] 3GPP TS 25.224: "Physical layer procedures (TDD)".
[10] 3GPP TS 25.215: "Physical layer - Measurements (FDD)".
[11] 3GPP TS 25.301: "Radio Interface Protocol Architecture".
[12] 3GPP TS 25.302: "Services Provided by the Physical Layer".
[13] 3GPP TS 25.401: "UTRAN Overall Description".
[14] 3GPP TS 25.133: "Requirements for Support of Radio Resource Management (FDD)".
[15] 3G TS 25.427: "UTRAN Overall Description :UTRA Iub/Iur Interface User Plane Protocol for
DCH data streams".
[16] 3GPP TS 25.435: "UTRAN Iub Interface User Plane Protocols for Common Transport Channel
Data Streams".
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 7 ETSI TS 125 211 V8.7.0 (2010-10)
3 Symbols and abbreviations
3.1 Symbols
N The number of data bits per downlink slot in Data1 field.
data1
N The number of data bits per downlink slot in Data2 field. If the slot format does not contain a
data2
Data2 field, N = 0.
data2
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
16QAM 16 Quadrature Amplitude Modulation
4PAM 4 Pulse-Amplitude Modulation
64QAM 64 Quadrature Amplitude Modulation
AI Acquisition Indicator
AICH Acquisition Indicator Channel
BCH Broadcast Channel
CCPCH Common Control Physical Channel
CCTrCH Coded Composite Transport Channel
CPICH Common Pilot Channel
CQI Channel Quality Indicator
DCH Dedicated Channel
DPCCH Dedicated Physical Control Channel
DPCH Dedicated Physical Channel
DPDCH Dedicated Physical Data Channel
DTX Discontinuous Transmission
E-AGCH E-DCH Absolute Grant Channel
E-DCH Enhanced Dedicated Channel
E-DPCCH E-DCH Dedicated Physical Control Channel
E-DPDCH E-DCH Dedicated Physical Data Channel
E-HICH E-DCH Hybrid ARQ Indicator Channel
E-RGCH E-DCH Relative Grant Channel
FACH Forward Access Channel
FBI Feedback Information
F-DPCH Fractional Dedicated Physical Channel
FSW Frame Synchronization Word
HS-DPCCH Dedicated Physical Control Channel (uplink) for HS-DSCH
HS-DSCH High Speed Downlink Shared Channel
HS-PDSCH High Speed Physical Downlink Shared Channel
HS-SCCH Shared Control Channel for HS-DSCH
ICH Indicator Channel
MBSFN MBMS over a Single Frequency Network
MICH MBMS Indicator Channel
MIMO Multiple Input Multiple Output
MUI Mobile User Identifier
NI MBMS Notification Indicator
PCH Paging Channel
P-CCPCH Primary Common Control Physical Channel
PICH Page Indicator Channel
PRACH Physical Random Access Channel
PSC Primary Synchronisation Code
RACH Random Access Channel
RNC Radio Network Controller
S-CCPCH Secondary Common Control Physical Channel
SCH Synchronisation Channel
SF Spreading Factor
SFN System Frame Number
SSC Secondary Synchronisation Code
STTD Space Time Transmit Diversity
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 8 ETSI TS 125 211 V8.7.0 (2010-10)
TFCI Transport Format Combination Indicator
TSTD Time Switched Transmit Diversity
TPC Transmit Power Control
UE User Equipment
UTRAN UMTS Terrestrial Radio Access Network

4 Services offered to higher layers
4.1 Transport channels
Transport channels are services offered by Layer 1 to the higher layers. General concepts about transport channels are
described in [12].
A transport channel is defined by how and with what characteristics data is transferred over the air interface. A general
classification of transport channels is into two groups:
- Dedicated channels, using inherent addressing of UE;
- Common channels, using explicit addressing of UE if addressing is needed.
4.1.1 Dedicated transport channels
There exists two types of dedicated transport channel, the Dedicated Channel (DCH) and the Enhanced Dedicated
Channel (E-DCH).
4.1.1.1 DCH - Dedicated Channel
The Dedicated Channel (DCH) is a downlink or uplink transport channel. The DCH is transmitted over the entire cell or
over only a part of the cell using e.g. beam-forming antennas.
4.1.1.2 E-DCH – Enhanced Dedicated Channel
The Enhanced Dedicated Channel (E-DCH) is an uplink transport channel in CELL DCH.
4.1.2 Common transport channels
There are six types of common transport channels: BCH, FACH, PCH, RACH, HS-DSCH and E-DCH.
4.1.2.1 BCH - Broadcast Channel
The Broadcast Channel (BCH) is a downlink transport channel that is used to broadcast system- and cell-specific
information. The BCH is always transmitted over the entire cell and has a single transport format.
4.1.2.2 FACH - Forward Access Channel
The Forward Access Channel (FACH) is a downlink transport channel. The FACH is transmitted over the entire cell.
The FACH can be transmitted using power setting described in [16].
4.1.2.3 PCH - Paging Channel
The Paging Channel (PCH) is a downlink transport channel. The PCH is always transmitted over the entire cell. The
transmission of the PCH is associated with the transmission of physical-layer generated Paging Indicators, to support
efficient sleep-mode procedures.
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 9 ETSI TS 125 211 V8.7.0 (2010-10)
4.1.2.4 RACH - Random Access Channel
The Random Access Channel (RACH) is an uplink transport channel. The RACH is always received from the entire
cell. The RACH is characterized by a collision risk and by being transmitted using open loop power control.
4.1.2.5 Void
4.1.2.6 Void
4.1.2.7 HS-DSCH – High Speed Downlink Shared Channel
The High Speed Downlink Shared Channel is a downlink transport channel shared by several UEs. The HS-DSCH can
be associated with one downlink DPCH or F-DPCH, and one or several Shared Control Channels (HS-SCCH). The HS-
DSCH is transmitted over the entire cell or over only part of the cell using e.g. beam-forming antennas.
4.1.2.7A E-DCH - Enhanced Dedicated Channel
The Enhanced Dedicated Channel (E-DCH) is an uplink transport channel in CELL_FACH state and IDLE mode.
4.2 Indicators
Indicators are means of fast low-level signalling entities which are transmitted without using information blocks sent
over transport channels. The meaning of indicators is specific to the type of indicator.
The indicators defined in the current version of the specifications are: Acquisition Indicator (AI), Page Indicator (PI)
and MBMS Notification Indicator (NI).
Indicators may be either boolean (two-valued) or three-valued. Their mapping to indicator channels is channel specific.
Indicators are transmitted on those physical channels that are indicator channels (ICH).
5 Physical channels and physical signals
Physical channels are defined by a specific carrier frequency, scrambling code, channelization code (optional), time
start & stop (giving a duration) and, on the uplink, relative phase (0 or π/2). The downlink E-HICH and E-RGCH are
each further defined by a specific orthogonal signature sequence. Scrambling and channelization codes are specified in
[4]. Time durations are defined by start and stop instants, measured in integer multiples of chips. Suitable multiples of
chips also used in specification are:
Radio frame: A radio frame is a processing duration which consists of 15 slots. The length of a radio
frame corresponds to 38400 chips.
Slot: A slot is a duration which consists of fields containing bits. The length of a slot corresponds
to 2560 chips.
Sub-frame: A sub-frame is the basic time interval for E-DCH and HS-DSCH transmission and E-DCH
and HS-DSCH-related signalling at the physical layer. The length of a sub-frame
corresponds to 3 slots (7680 chips).
The default time duration for a physical channel is continuous from the instant when it is started to the instant when it is
stopped. Physical channels that are not continuous will be explicitly described.
Transport channels are described (in more abstract higher layer models of the physical layer) as being capable of being
mapped to physical channels. Within the physical layer itself the exact mapping is from a composite coded transport
channel (CCTrCH) to the data part of a physical channel. In addition to data parts there also exist channel control parts
and physical signals.
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 10 ETSI TS 125 211 V8.7.0 (2010-10)
5.1 Physical signals
Physical signals are entities with the same basic on-air attributes as physical channels but do not have transport channels
or indicators mapped to them. Physical signals may be associated with physical channels in order to support the
function of physical channels.
5.2 Uplink physical channels
5.2.1 Dedicated uplink physical channels
There are five types of uplink dedicated physical channels, the uplink Dedicated Physical Data Channel (uplink
DPDCH), the uplink Dedicated Physical Control Channel (uplink DPCCH), the uplink E-DCH Dedicated Physical Data
Channel (uplink E-DPDCH), the uplink E-DCH Dedicated Physical Control Channel (uplink E-DPCCH) and the uplink
Dedicated Control Channel associated with HS-DSCH transmission (uplink HS-DPCCH).
The DPDCH, the DPCCH, the E-DPDCH, the E-DPCCH and the HS-DPCCH are I/Q code multiplexed (see [4]).
5.2.1.1 DPCCH and DPDCH
The uplink DPDCH is used to carry the DCH transport channel. There may be zero, one, or several uplink DPDCHs on
each radio link.
The uplink DPCCH is used to carry control information generated at Layer 1. The Layer 1 control information consists
of known pilot bits to support channel estimation for coherent detection, transmit power-control (TPC) commands,
feedback information (FBI), and an optional transport-format combination indicator (TFCI). The transport-format
combination indicator informs the receiver about the instantaneous transport format combination of the transport
channels mapped to the simultaneously transmitted uplink DPDCH radio frame. There is one and only one uplink
DPCCH on each radio link.
Figure 1 shows the frame structure of the uplink DPDCH and the uplink DPCCH. Each radio frame of length 10 ms is
split into 5 subframes, each of 3 slots, each of length T = 2560 chips, corresponding to one power-control period. The
slot
DPDCH and DPCCH are always frame aligned with each other.

Data
DPDCH
N bits
data
k
T = 2560 chips, N = 10*2 bits (k=0.6)
slot data
FBI TPC
Pilot TFCI
DPCCH
N bits N bits
N bits N bits
FBI TPC
pilot TFCI
T = 2560 chips, 10 bits
slot
Slot #0 Slot #1 Slot #2 Slot #3 Slot #i Slot #14
Subframe #0 Subframe #1 Subframe #2 Subframe #3 Subframe #4
1 subframe = 2 ms
1 radio frame: T = 10 ms
f
Figure 1: Frame structure for uplink DPDCH/DPCCH
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 11 ETSI TS 125 211 V8.7.0 (2010-10)
The parameter k in figure 1 determines the number of bits per uplink DPDCH slot. It is related to the spreading factor
k
SF of the DPDCH as SF = 256/2 . The DPDCH spreading factor may range from 256 down to 4. The spreading factor
of the uplink DPCCH is always equal to 256, i.e. there are 10 bits per uplink DPCCH slot.
The exact number of bits of the uplink DPDCH and the different uplink DPCCH fields (N , N , N , and N ) is
pilot TFCI FBI TPC
given by table 1 and table 2. What slot format to use is configured by higher layers and can also be reconfigured by
higher layers.
The channel bit and symbol rates given in table 1 and table 2 are the rates immediately before spreading. The pilot
patterns are given in table 3 and table 4, the TPC bit pattern is given in table 5.
The FBI bits are used to support techniques requiring feedback from the UE to the UTRAN Access Point for operation
of closed loop mode transmit diversity. The use of the FBI bits is described in detail in [5].
Table 1: DPDCH fields
Slot Format #i Channel Bit Rate Channel Symbol SF Bits/ Bits/ N
data
(kbps) Rate (ksps) Frame Slot
0 15 15 256 150 10 10
1 30 30 128 300 20 20
2 60 60 64 600 40 40
3 120 120 32 1200 80 80
4 240 240 16 2400 160 160
5 480 480 8 4800 320 320
6 960 960 4 9600 640 640
There are two types of uplink dedicated physical channels; those that include TFCI (e.g. for several simultaneous
services) and those that do not include TFCI (e.g. for fixed-rate services). These types are reflected by the duplicated
rows of table 2. It is the UTRAN that determines if a TFCI should be transmitted and it is mandatory for all UEs to
support the use of TFCI in the uplink. The mapping of TFCI bits onto slots is described in [3].
In compressed mode, DPCCH slot formats with TFCI fields are changed. There are two possible compressed slot
formats for each normal slot format. They are labelled A and B and the selection between them is dependent on the
number of slots that are transmitted in each frame in compressed mode.
If UL_DTX_Active is TRUE (see [5]), the number of transmitted slots per radio frame may be less than the number
shown in Table 2.
Table 2: DPCCH fields
Slot Channel Bit Channel Symbol SF Bits/ Bits/ N N N N Transmitted
pilot TPC TFCI FBI
Form Rate (kbps) Rate (ksps) Frame Slot slots per
at #i radio frame
0 15 15 256 150 10 6 2 2 0 15
0A 15 15 256 150 10 5 2 3 0 10-14
0B 15 15 256 150 10 4 2 4 0 8-9
1 15 15 256 150 10 8 2 0 0 8-15
2 15 15 256 150 10 5 2 2 1 15
2A 15 15 256 150 10 4 2 3 1 10-14
2B 15 15 256 150 10 3 2 4 1 8-9
3 15 15 256 150 10 7 2 0 1 8-15
4 15 15 256 150 10 6 4 0 0 8-15

The pilot bit patterns are described in table 3 and table 4. The shadowed column part of pilot bit pattern is defined as
FSW and FSWs can be used to confirm frame synchronization. (The value of the pilot bit pattern other than FSWs shall
be "1".)
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 12 ETSI TS 125 211 V8.7.0 (2010-10)
Table 3: Pilot bit patterns for uplink DPCCH with N = 3, 4, 5 and 6
pilot
N = 3 N = 4 N = 5 N = 6
pilot pilot pilot pilot
Bit # 0 1 2 0 1 2 3 0 1 2 3 4 0 1 2 3 4 5
Slot #0 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 0
1 0 0 1 1 0 0 1 0 0 1 1 0 1 0 0 1 1 0
2 0 1 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1
3 0 0 1 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0
4 1 0 1 1 1 0 1 1 0 1 0 1 1 1 0 1 0 1
5 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 0
6 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 0
7 1 0 1 1 1 0 1 1 0 1 0 0 1 1 0 1 0 0
8 0 1 1 1 0 1 1 0 1 1 1 0 1 0 1 1 1 0
9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
10 0 1 1 1 0 1 1 0 1 1 0 1 1 0 1 1 0 1
11 1 0 1 1 1 0 1 1 0 1 1 1 1 1 0 1 1 1
12 1 0 1 1 1 0 1 1 0 1 0 0 1 1 0 1 0 0
13 0 0 1 1 0 0 1 0 0 1 1 1 1 0 0 1 1 1
14 0 0 1 1 0 0 1 0 0 1 1 1 1 0 0 1 1 1

Table 4: Pilot bit patterns for uplink DPCCH with N = 7 and 8
pilot
N = 7 N = 8
pilot pilot
Bit # 0 1 2 3 4 5 6 0 1 2 3 4 5 6 7
Slot #0 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0
1 1 0 0 1 1 0 1 1 0 1 0 1 1 1 0
2 1 0 1 1 0 1 1 1 0 1 1 1 0 1 1
3 1 0 0 1 0 0 1 1 0 1 0 1 0 1 0
4 1 1 0 1 0 1 1 1 1 1 0 1 0 1 1
5 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0
1 1 0 0 1 1 0 0
6 1 1 1 1 1 1 1
7 1 1 0 1 0 0 1 1 1 1 0 1 0 1 0
8 1 0 1 1 1 0 1 1 0 1 1 1 1 1 0
9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
10 1 0 1 1 0 1 1 1 0 1 1 1 0 1 1
11 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1
12 1 1 0 1 0 0 1 1 1 1 0 1 0 1 0
13 1 0 0 1 1 1 1 1 0 1 0 1 1 1 1
14 1 0 0 1 1 1 1 1 0 1 0 1 1 1 1

The relationship between the TPC bit pattern and transmitter power control command is presented in table 5.
Table 5: TPC Bit Pattern
TPC Bit Pattern Transmitter power
control command
N = 2 N = 4
TPC TPC
11 1111 1
00 0000 0
Multi-code operation is possible for the uplink dedicated physical channels. When multi-code transmission is used,
several parallel DPDCH are transmitted using different channelization codes, see [4]. However, there is only one
DPCCH per radio link.
A period of uplink DPCCH transmission prior to the start of the uplink DPDCH transmission (uplink DPCCH power
control preamble) shall be used for initialisation of a DCH. The length of the power control preamble is a higher layer
parameter, N , signalled by the network [5]. The UL DPCCH shall take the same slot format in the power control
pcp
preamble as afterwards, as given in table 2. When N > 0 the pilot patterns of table 3 and table 4 shall be used. The
pcp
timing of the power control preamble is described in [5], subclause 4.3.2.3. The TFCI field is filled with "0" bits.
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 13 ETSI TS 125 211 V8.7.0 (2010-10)
5.2.1.2 HS-DPCCH
Figure 2A illustrates the frame structure of the HS-DPCCH. The HS-DPCCH carries uplink feedback signalling related
to downlink HS-DSCH transmission and to HS-SCCH orders according to subclause 6A.1.1 in [5]. The feedback
signalling consists of Hybrid-ARQ Acknowledgement (HARQ-ACK) and Channel-Quality Indication (CQI) and in
case the UE is configured in MIMO mode of Precoding Control Indication (PCI) as well [3]. Each sub frame of length 2
ms (3*2560 chips) consists of 3 slots, each of length 2560 chips. The HARQ-ACK is carried in the first slot of the HS-
DPCCH sub-frame. The CQI, and in case the UE is configured in MIMO mode also the PCI, are carried in the second
and third slot of a HS-DPCCH sub-frame. There is at most one HS-DPCCH on each radio link. The HS-DPCCH can
only exist together with an uplink DPCCH. The timing of the HS-DPCCH relative to the uplink DPCCH is shown in
section 7.7.
T = 2560 chips 2 ×T  = 5120 chips
slot slot
HARQ-ACK CQI/PCI
One HS-DPCCH subframe (2 ms)
Subframe #0 Subframe #i Subframe #4
One radio frame T  = 10 ms
f
Figure 2A: Frame structure for uplink HS-DPCCH
The spreading factor of the HS-DPCCH is 256 i.e. there are 10 bits per uplink HS-DPCCH slot. The slot format for
uplink HS-DPCCH is defined in Table 5A.
Table 5A: HS-DPCCH fields
Slot Format #i Channel Bit Channel Symbol SF Bits/ Bits/ Transmitted
Rate (kbps) Rate (ksps) Subframe Slot slots per
Subframe
0 15 15 256 30 10 3
5.2.1.3 E-DPCCH and E-DPDCH
The E-DPDCH is used to carry the E-DCH transport channel. There may be zero, one, or several E-DPDCH on each
radio link.
The E-DPCCH is a physical channel used to transmit control information associated with the E-DCH. There is at most
one E-DPCCH on each radio link.
E-DPDCH and E-DPCCH are always transmitted simultaneously, except for the following cases when E-DPCCH is
transmitted without E-DPDCH:
- when E-DPDCH but not E-DPCCH is DTXed due to power scaling as described in [5] section 5.1.2.6, or
- during the n E-DPDCH idle slots if n >n as described in [3] section 4.4.5.2.
dtx max tx1
E-DPCCH shall not be transmitted in a slot unless DPCCH is also transmitted in the same slot.
Figure 2B shows the E-DPDCH and E-DPCCH (sub)frame structure. Each radio frame is divided in 5 subframes, each
th
of length 2 ms; the first subframe starts at the start of each radio frame and the 5 subframe ends at the end of each
radio frame.
An E-DPDCH may use BPSK or 4PAM modulation symbols. In figure 2B, M is the number of bits per modulation
symbol i.e. M=1 for BPSK and M=2 for 4PAM.
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 14 ETSI TS 125 211 V8.7.0 (2010-10)
The E-DPDCH slot formats, corresponding rates and number of bits are specified in Table 5B. The E-DPCCH slot
format is listed in Table 5C.
E-DPDCH
E-DPDCH Data, N bits
data
k
T = 2560 chips, N = M*10*2 bits (k=0…7)
slot data
E-DPCCH 10 bits
T = 2560 chips
slot
Slot #0 Slot #1 Slot #2 Slot #i Slot #14
Slot #3
Subframe #0 Subframe #1 Subframe #2 Subframe #3 Subframe #4
1 subframe = 2 ms
1 radio frame, T = 10 ms
f
Figure 2B: E-DPDCH frame structure

Table 5B: E-DPDCH slot formats
Slot Format #i Channel Bit Rate Bits/Symbol SF Bits/ Bits/ Bits/Slot
(kbps) M Frame Subframe N
data
0 15 1 256 150 30 10
1 30 1 128 300 60 20
2 60 1 64 600 120 40
3 120 1 32 1200 240 80
4 240 1 16 2400 480 160
5 480 1 8 4800 960 320
6 960 1 4 9600 1920 640
7 1920 1 2 19200 3840 1280
8 1920 2 4 19200 3840 1280
9 3840 2 2 38400 7680 2560
Table 5C: E-DPCCH slot formats
Slot Format #i Channel Bit Rate SF Bits/ Bits/ Bits/Slot
(kbps) Frame Subframe N
data
0 15 256 150 30 10
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 15 ETSI TS 125 211 V8.7.0 (2010-10)
5.2.2 Common uplink physical channels
5.2.2.1 Physical Random Access Channel (PRACH)
The Physical Random Access Channel (PRACH) is used to carry the RACH.
5.2.2.1.1 Overall structure of random-access transmission
The random-access transmission is based on a Slotted ALOHA approach with fast acquisition indication. The UE can
start the random-access transmission at the beginning of a number of well-defined time intervals, denoted access slots.
There are 15 access slots per two frames and they are spaced 5120 chips apart, see figure 3. The timing of the access
slots and the acquisition indication is described in subclause 7.3. Information on what access slots are available for
random-access transmission is given by higher layers.
radio frame: 10 ms radio frame: 10 ms
5120 chips
Access slot #0 #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14
Random Access Transmission
Random Access Transmission
Random Access Transmission
Random Access Transmission
Figure 3: RACH access slot numbers and their spacing
The structure of the random-access transmission is shown in figure 4. The random-access transmission consists of one
or several preambles of length 4096 chips and a message of length 10 ms or 20 ms.

Preamble Preamble Preamble
Message part
4096 chips
10 ms (one radio frame)
Preamble Preamble Preamble
Message part
4096 chips
20 ms (two radio frames)
Figure 4: Structure of the random-access transmission
5.2.2.1.2 RACH preamble part
Each preamble is of length 4096 chips and consists of 256 repetitions of a signature of length 16 chips. There are a
maximum of 16 available signatures, see [4] for more details.
ETSI
3GPP TS 25.211 version 8.7.0 Release 8 16 ETSI TS 125 211 V8.7.0 (2010-10)
5.2.2.1.3 RACH message part
Figure 5 shows the structure of the random-access message part radio frame. The 10 ms message part radio frame is
split into 15 slots, each of length T = 2560 chips. Each slot consists of two parts, a data part to which the RACH
slot
transport channel is mapped and a control part that carries Layer 1 control information. The data and control parts are
transmitted in parallel. A 10 ms message part consists of one message part radio frame, while a 20 ms message part
consists of two consecutive 10 ms message part radio frames. The message part length is equal to the Transmission
Time Interval of the RACH Transport channel in use. This TTI length is configured by higher layers.
k
The data part consists of 10*2 bits, where k=0,1,2,3. This corresponds to a spreading factor of 256, 128, 64, and 32
respectively for the message data part.
The control part consists of 8 known pilot bits to support channel estimation for coherent detection and 2 TFCI bits.
This corresponds to a spreading factor of 256 for the message control part. The pilot bit pattern is described in table 8.
The total number of TFCI bits in the random-access message is 15*2 = 30. The TFCI of a radio frame indicates the
transport format of the RACH transport channel mapped to the simultaneously transmitted message part radio frame. In
case of a 20 ms PRACH message part, the TFCI is repeated in the second radio frame.
Data
Data
N bits
data
Pilot
TFCI
Control
N bits
pilot
N bits
TFCI
k
T = 2560 chips, 10*2 bits (k=0.3)
slot
Slot #0 Slot #1 Slot #i Slot #14
Message part radio frame T = 10 ms
RACH
Figure 5: Structure of the random-access message part radio frame
Table 6: Random-access message data fields
Slot Format Channel Bit Channel SF Bits/ Bits/ N
data
#i Rate (kbps) Symbol Rate Frame Slot
(ksp
...

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