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TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Evolved Universal Terrestrial Radio Access (E-UTRA);
Physical layer for relaying operation
(3GPP TS 36.216 version 15.0.0 Release 15)
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3GPP TS 36.216 version 15.0.0 Release 15 1 ETSI TS 136 216 V15.0.0 (2018-07)
Reference
RTS/TSGR-0136216vf00
Keywords
LTE,UMTS
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3GPP TS 36.216 version 15.0.0 Release 15 2 ETSI TS 136 216 V15.0.0 (2018-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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
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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
.
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.
ETSI
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3GPP TS 36.216 version 15.0.0 Release 15 3 ETSI TS 136 216 V15.0.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 4
1 Scope . 5
2 References . 5
3 Definitions, symbols and abbreviations . 5
3.1 Definitions . 5
3.2 Symbols . 5
3.3 Abbreviations . 6
4 General . 6
5 Physical Channels and Modulation . 7
5.1 General . 7
5.2 Resource partitioning and multiplexing for relays . 7
5.3 Relay frame timing . 8
5.4 Downlink slot structure and physical resource elements . 8
5.5 Physical downlink shared channel . 9
5.6 Relay physical downlink control channel . 9
5.6.1 General . 9
5.6.2 R-PDCCH formats without cross-interleaving . 10
5.6.3 R-PDCCH formats with cross-interleaving . 10
5.7 Reference signals . 11
5.7.1 Downlink reference signals. 11
6 Multiplexing and channel coding . 11
7 Relay Node procedures . 11
7.1 General . 11
7.2 Relay node procedures for receiving the physical downlink shared channel . 11
7.3 Relay node procedures for transmitting the physical uplink shared channel . 12
7.4 Relay node procedure for receiving the relay physical downlink control channel . 13
7.4.1 Monitoring and demodulation. 13
7.4.2 Relay node procedure for determining relay physical downlink control channel assignment without
cross-interleaving . 14
7.4.3 Relay node procedure for determining relay physical downlink control channel assignment with
cross-interleaving . 14
7.5 Relay node procedures for transmitting the physical uplink control channel . 14
7.5.1 Relay node procedure for determining physical uplink control channel assignment . 14
7.5.2 Relay node HARQ-ACK feedback procedure for frame structure type 2 . 15
Annex A (informative): Change history . 16
History . 17
ETSI
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3GPP TS 36.216 version 15.0.0 Release 15 4 ETSI TS 136 216 V15.0.0 (2018-07)
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.
ETSI
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3GPP TS 36.216 version 15.0.0 Release 15 5 ETSI TS 136 216 V15.0.0 (2018-07)
1 Scope
The present document describes the characteristics of eNB - relay node transmissions.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 36.201: "Evolved Universal Terrestrial Radio Access (E-UTRA); LTE physical layer;
General description".
[3] 3GPP TS 36.211: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and
modulation".
[4] 3GPP TS 36.212: "Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and
channel coding".
[5] 3GPP TS 36.213: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer
procedures".
[6] 3GPP TS 36.214: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer –
Measurements".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 [1] and the following apply. A
term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 [1].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Δf Subcarrier spacing as defined in [3]
i R-PDCCH aggregation element index
j Slot index
K PDSCH-to-ACK/NACK timing association set
k Subcarrier index
ιth element of K
κ
L End OFDM symbol index for R-PDCCH
l OFDM symbol index
l' OFDM symbol index
Λ Aggregation level of R-PDCCH
m R-PDCCH candidate index
M Number of elements in the set K for subframe n
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3GPP TS 36.216 version 15.0.0 Release 15 6 ETSI TS 136 216 V15.0.0 (2018-07)
R−PDCCH
N Number of CCEs configured for detecting R-PDCCH in slot j
CCE, j
R−PDCCH
N Number of VRBs configured for detecting R-PDCCH
VRB
n Subframe index
n System frame number as defined in [3]
f
n Physical resource block number as defined in [3]
PRB
(1)
n Resource index for PUCCH formats 1/1a/1b for subframe index i as defined in [3]
PUCCH,i
(1, p)
n Resource index for PUCCH formats 1/1a/1b using antenna port p as defined in [3]
PUCCH
(3, p)
n Resource index for PUCCH format 3 using antenna port p as defined in [3]
PUCCH
n Slot number within a radio frame as defined in [3]
s
n Scrambling identity as defined in [3]
SCID
n Virtual resource block number as defined in [3]
VRB
( Λ)
S Search space for aggregation level Λ in slot j of subframe n
n, j
Y Equivalent to Y in [5]
n k
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905 [1].
CCE Control Channel Element
CRC Cyclic Redundancy Check
CSI-RS Channel-State Information Reference Signals
DCI Downlink Control Information
eNB Evolved Node B
FDD Frequency Division Duplex
HARQ Hybrid Automatic Repeat Request
LTE Long Term Evolution
OFDM Orthogonal Frequency Division Multiplexing
PDSCH Physical Downlink Shared Channel
PDCCH Physical Downlink Control Channel
PHICH Physical Hybrid ARQ Indicator Channel
PRB Physical Resource Block
PUCCH Physical Uplink Control Channel
PUSCH Physical Uplink Shared Channel
RB Resource Block
RE Resource Element
REG Resource Element Group
RN Relay Node
R-PDCCH Relay Physical Downlink Control Channel
TDD Time Division Duplex
UE User Equipment
VRB Virtual Resource Block
4 General
From a UE perspective a relay node is part of the radio access network and behaves like an eNB. A relay node is
wirelessly connected to a donor eNB.
A relay node includes at least two physical layer entities. One entity is used for communication with UEs as described
in [3][4][5][6]. Another physical layer entity is used for communication with the donor eNB and it corresponds to UE
functionality as described in [3][4][5][6]. If a relay node is configured to use relay-specific advancements, the physical
ETSI
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3GPP TS 36.216 version 15.0.0 Release 15 7 ETSI TS 136 216 V15.0.0 (2018-07)
layer entity for communication with the donor eNB corresponds to UE functionality as described in [3][4][5][6]
extended by relay-specific advancements as described in the following.
5 Physical Channels and Modulation
5.1 General
Processing and mapping of physical channels shall be processed according to [3] with the exceptions described within
Section 5.
5.2 Resource partitioning and multiplexing for relays
Time-frequency resources shall be set aside for eNB-RN transmissions by time multiplexing eNB-RN and RN-UE
transmissions. Subframes during which eNB-RN transmission may take place are configured by higher layers.
Downlink subframes configured for eNB-to-RN transmission shall be configured as MBSFN subframes by the relay
node. eNB-to-RN transmissions occur in downlink subframes and RN-to-eNB transmissions occur in uplink subframes.
For frame structure type 1, eNB-to-RN and RN-to-UE transmissions occur in the downlink frequency band, while RN-
to-eNB and UE-to-RN transmissions occur in the uplink frequency band.
For frame structure type 1, a subframe configured for eNB-to-RN transmission is a subframe satisfying
[]()10⋅ n + n 2 mod8 ∈ Δ where n and n refer to donor eNB cell timing, with the exception that a downlink
f s
f s BSC
subframe that cannot be configured as MBSFN subframe in the relay node cell shall not be configured for eNB-to-RN
transmission. The set Δ is determined as the union of the applicable offset values listed in Table 5.2-1 with respect
BSC
to the parameter SubframeConfigurationFDD, which is configured by higher layers, and where "x" means that the
corresponding bit in the bitmap can be either 0 or 1. A subframe n is configured for RN-to-eNB transmission if
n − 4 is configured for eNB-to-RN transmission.
subframe
Table 5.2-1: Downlink subframe configuration for eNB-to-RN transmission (frame structure type 1)
SubframeConfigurationFDD
Offset value element of Δ
BSC
{xxxxxxx1} 7
{xxxxxx1x} 6
{xxxxx1xx} 5
{xxxx1xxx} 4
{xxx1xxxx} 3
{xx1xxxxx} 2
{x1xxxxxx} 1
{1xxxxxxx} 0
For frame structure type 2 the subframes that can be configured for eNB-RN transmission are listed in Table 5.2-2
where, for each subframe in a radio frame, "D" denotes the subframe is configured for downlink eNB-to-RN
transmissions, "U" denotes the subframe is configured for uplink RN-to-eNB transmissions. The parameter
SubframeConfigurationTDD is configured by higher layers. Table 5.2-2 indicates the supported uplink-downlink
configurations [3] for the eNB-RN link as a function of SubframeConfigurationTDD.
ETSI
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3GPP TS 36.216 version 15.0.0 Release 15 8 ETSI TS 136 216 V15.0.0 (2018-07)
Table 5.2-2: Supported configurations for eNB-RN transmission (frame structure type 2)
eNB-RN Subframe number n
SubframeConfigurationTDD
uplink- 0 1 2 3 4 5 6 7 8 9
downlink
configuration
0 1 D U
1 U D
2 D U D
3 U D D
4 U D U D
5 2 U D
6 D U
7 U D D
8 D U D
9 U D D D
10 D U D D
11 3 U D D
12 U D D D
13 4 U D
14 U D D
15 U D D
16 U D D D
17 U D D D D
18 6 U D
5.3 Relay frame timing
The frame timing for downlink transmission from the relay shall be such that the relay node can receive at least the
OFDM symbols from the donor eNB according to Section 5.4.
5.4 Downlink slot structure and physical resource elements
The downlink slot structure and the physical resource elements are described in Section 6.2 of [3].
eNB-to-RN transmissions shall be restricted to a subset of the OFDM symbols in a slot. The starting and ending OFDM
symbo
...