ETSI TS 138 215 V16.3.0 (2020-11)

ETSI TS 138 215 V16.3.0 (2020-11)
TECHNICAL SPECIFICATION
5G;
NR;
Physical layer measurements
(3GPP TS 38.215 version 16.3.0 Release 16)
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3GPP TS 38.215 version 16.3.0 Release 16 1 ETSI TS 138 215 V16.3.0 (2020-11)
Reference
RTS/TSGR-0138215vg30
Keywords
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Intellectual Property Rights ................................................................................................................................ 2

Legal Notice ....................................................................................................................................................... 2

Modal verbs terminology .................................................................................................................................... 2

Foreword ............................................................................................................................................................. 5

1 Scope ........................................................................................................................................................ 6

2 References ................................................................................................................................................ 6

3 Definitions, symbols and abbreviations ................................................................................................... 6

3.1 Definitions .......................................................................................................................................................... 6

3.2 Symbols .............................................................................................................................................................. 7

3.3 Abbreviations ..................................................................................................................................................... 7

4 Control of UE/NG-RAN measurements ................................................................................................... 7

5 Measurement capabilities for NR ............................................................................................................. 8

5.1 UE measurement capabilities ............................................................................................................................. 8

5.1.1 SS reference signal received power (SS-RSRP) ........................................................................................... 9

5.1.2 CSI reference signal received power (CSI-RSRP) ...................................................................................... 10

5.1.3 SS reference signal received quality (SS-RSRQ) ....................................................................................... 11

5.1.4 CSI reference signal received quality (CSI-RSRQ) .................................................................................... 12

5.1.5 SS signal-to-noise and interference ratio (SS-SINR) .................................................................................. 13

5.1.6 CSI signal-to-noise and interference ratio (CSI-SINR) .............................................................................. 14

5.1.7 Void ............................................................................................................................................................ 14

5.1.8 Void ............................................................................................................................................................ 14

5.1.9 UE GNSS Timing of Cell Frames for UE positioning for E-UTRA........................................................... 14

5.1.10 UE GNSS code measurements.................................................................................................................... 15

5.1.11 UE GNSS carrier phase measurements ....................................................................................................... 15

5.1.12 IEEE 802.11 WLAN RSSI ......................................................................................................................... 15

5.1.13 Reference signal time difference (RSTD) for E-UTRA.............................................................................. 15

5.1.14 SFN and frame timing difference (SFTD) .................................................................................................. 16

5.1.15 E-UTRA RSRP ........................................................................................................................................... 16

5.1.16 E-UTRA RSRQ .......................................................................................................................................... 17

5.1.17 E-UTRA RS-SINR ..................................................................................................................................... 17

5.1.18 SS reference signal received power per branch (SS-RSRPB) ..................................................................... 18

5.1.19 SRS reference signal received power (SRS-RSRP) .................................................................................... 18

5.1.20 CLI Received signal strength indicator (CLI-RSSI) ................................................................................... 19

5.1.21 Received Signal Strength Indicator (RSSI) ................................................................................................ 19

5.1.22 PSBCH reference signal received power (PSBCH-RSRP) ......................................................................... 19

5.1.23 PSSCH reference signal received power (PSSCH-RSRP) .......................................................................... 20

5.1.24 PSСCH reference signal received power (PSCCH-RSRP) ......................................................................... 20

5.1.25 Sidelink received signal strength indicator (SL RSSI) ............................................................................... 21

5.1.26 Sidelink channel occupancy ratio (SL CR) ................................................................................................. 21

5.1.27 Sidelink channel busy ratio (SL CBR) ........................................................................................................ 21

5.1.28 DL PRS reference signal received power (DL PRS-RSRP) ....................................................................... 22

5.1.29 DL reference signal time difference (DL RSTD) ....................................................................................... 22

5.1.30 UE Rx – Tx time difference ........................................................................................................................ 22

5.1.31 SS reference signal antenna relative phase (SS-RSARP) ........................................................................... 23

5.1.32 UTRA FDD CPICH RSCP ......................................................................................................................... 23

5.1.33 UTRA FDD carrier RSSI ............................................................................................................................ 23

5.1.34 UTRA FDD CPICH Ec/No ......................................................................................................................... 24

5.2 NG-RAN measurement abilities ....................................................................................................................... 24

5.2.1 SSS transmit power ..................................................................................................................................... 24

5.2.2 UL Relative Time of Arrival (T ) ..................................................................................................... 25

5.2.3 gNB Rx – Tx time difference...................................................................................................................... 25

5.2.4 UL Angle of Arrival (UL AoA) .................................................................................................................. 25

5.2.5 UL SRS reference signal received power (UL SRS-RSRP) ....................................................................... 26

Annex A: Change history ...................................................................................................................... 27

History .............................................................................................................................................................. 30

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

y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,

z the third digit is incremented when editorial only changes have been incorporated in the document.

The following documents contain provisions which, through reference in this text, constitute provisions of the present

[10] 3GPP TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource

[11] IEEE 802.11, Part 11: "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)

[13] 3GPP TS 36.211: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and

[14] 3GPP TS 38.509: "5GS; Special conformance testing functions for User Equipment (UE)"

[15] 3GPP TS 38.901: "Study on channel model for frequencies from 0.5 to 100 GHz"

[17] 3GPP TS 37.213: "Physical layer procedures for shared spectrum channel access"

[18] 3GPP TS 38.305: "NG Radio Access Network (NG-RAN); Stage 2 functional specification of

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].

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

In this chapter the general measurement control concept of the higher layers is briefly described to provide an

understanding on how L1 measurements are initiated and controlled by higher layers.

With the measurement specifications L1 provides measurement capabilities for the UE and NG-RAN. These

measurements can be classified in different reported measurement types: intra-frequency, inter-frequency, inter-system,

In the L1 measurement definitions, see chapter 5, the measurements are categorised as measurements in the UE or

States in which state(s) it shall be possible to perform this measurement. The following terms are

Shall be possible to perform in the corresponding RRC state on an intra-frequency cell;

Shall be possible to perform in the corresponding RRC state on an inter-frequency cell

Shall be possible to perform in the corresponding RRC state on an inter-RAT cell.

Definition SS reference signal received power (SS-RSRP) is defined as the linear average over the power

contributions (in [W]) of the resource elements that carry secondary synchronization signals. The

measurement time resource(s) for SS-RSRP are confined within SS/PBCH Block Measurement

Time Configuration (SMTC) window duration. If SS-RSRP is used for L1-RSRP as configured by

reporting configurations as defined in TS 38.214 [6], the measurement time resources(s)

For SS-RSRP determination demodulation reference signals for physical broadcast channel

(PBCH) and, if indicated by higher layers, CSI reference signals in addition to secondary

synchronization signals may be used. SS-RSRP using demodulation reference signal for PBCH

or CSI reference signal shall be measured by linear averaging over the power contributions of

the resource elements that carry corresponding reference signals taking into account power

scaling for the reference signals as defined in TS 38.213 [5]. If SS-RSRP is not used for L1-

RSRP, the additional use of CSI reference signals for SS-RSRP determination is not applicable.

SS-RSRP shall be measured only among the reference signals corresponding to SS/PBCH

blocks with the same SS/PBCH block index and the same physical-layer cell identity.

If SS-RSRP is not used for L1-RSRP and higher-layers indicate certain SS/PBCH blocks for

performing SS-RSRP measurements, then SS-RSRP is measured only from the indicated set of

For frequency range 1, the reference point for the SS-RSRP shall be the antenna connector of

the UE. For frequency range 2, SS-RSRP shall be measured based on the combined signal from

antenna elements corresponding to a given receiver branch. For frequency range 1 and 2, if

receiver diversity is in use by the UE, the reported SS-RSRP value shall not be lower than the

NOTE 1: The number of resource elements within the measurement period that are used by the UE to determine

SS-RSRP is left up to the UE implementation with the limitation that corresponding measurement

NOTE 2: The power per resource element is determined from the energy received during the useful part of the

Definition CSI reference signal received power (CSI-RSRP), is defined as the linear average over the

power contributions (in [W]) of the resource elements of the antenna port(s) that carry CSI

reference signals configured for RSRP measurements within the considered measurement

For CSI-RSRP determination CSI reference signals transmitted on antenna port 3000 according

to TS 38.211 [4] shall be used. If CSI-RSRP is used for L1-RSRP, CSI reference signals

For intra-frequency CSI-RSRP measurements, if the measurement gap is not configured, UE is

not expected to measure the CSI-RS resource(s) outside of the active downlink bandwidth part.

For frequency range 1, the reference point for the CSI-RSRP shall be the antenna connector of

the UE. For frequency range 2, CSI-RSRP shall be measured based on the combined signal

from antenna elements corresponding to a given receiver branch. For frequency range 1 and 2, if

receiver diversity is in use by the UE, the reported CSI-RSRP value shall not be lower than the

NOTE 1: The number of resource elements within the considered measurement frequency bandwidth and within the

measurement period that are used by the UE to determine CSI-RSRP is left up to the UE implementation

with the limitation that corresponding measurement accuracy requirements have to be fulfilled.

NOTE 2: The power per resource element is determined from the energy received during the useful part of the

Definition Secondary synchronization signal reference signal received quality (SS-RSRQ) is defined as the

ratio of N×SS-RSRP / NR carrier RSSI, where N is the number of resource blocks in the NR

carrier RSSI measurement bandwidth. The measurements in the numerator and denominator

NR carrier Received Signal Strength Indicator (NR carrier RSSI), comprises the linear average of

the total received power (in [W]) observed only in certain OFDM symbols of measurement time

resource(s), in the measurement bandwidth, over N number of resource blocks from all sources,

including co-channel serving and non-serving cells, adjacent channel interference, thermal noise

etc. For cell selection, according to Clause 4.1 of TS 38.211 [12], the measurement time

resources(s) for NR Carrier RSSI are not constrained. Otherwise, the measurement time

resource(s) for NR Carrier RSSI are confined within SS/PBCH Block Measurement Time

If indicated by higher-layers, if measurement gap is not used, the NR Carrier RSSI is measured

in slots within the SMTC window duration that are indicated by the higher layer parameter

measurementSlots and in OFDM symbols given by Table 5.1.3-1 and, if measurement gap is

used, the NR Carrier RSSI is measured in slots within the SMTC window duration that are

indicated by the higher layer parameter measurementSlots and in OFDM symbols given by Table

5.1.3-1 that are overlapped with the measurement gap, which is defined in TS38.133 [12].

- For intra-frequency measurements, NR Carrier RSSI is measured with timing reference

- For inter-frequency measurements, NR Carrier RSSI is measured with timing reference

Otherwise not indicated by higher-layers, if measurement gap is not used, NR Carrier RSSI is

measured from OFDM symbols within SMTC window duration and, if measurement gap is used,

NR Carrier RSSI is measured from OFDM symbols corresponding to overlapped time span

If higher-layers indicate certain SS/PBCH blocks for performing SS-RSRQ measurements, then

For frequency range 1, the reference point for the SS-RSRQ shall be the antenna connector of

the UE. For frequency range 2, NR Carrier RSSI shall be measured based on the combined

signal from antenna elements corresponding to a given receiver branch, where the combining for

NR Carrier RSSI shall be the same as the one used for SS-RSRP measurements. For frequency

range 1 and 2, if receiver diversity is in use by the UE, the reported SS-RSRQ value shall not be

Definition CSI reference signal received quality (CSI-RSRQ) is defined as the ratio of N×CSI-RSRP to CSI-

RSSI, where N is the number of resource blocks in the CSI-RSSI measurement bandwidth. The

measurements in the numerator and denominator shall be made over the same set of resource

CSI Received Signal Strength Indicator (CSI-RSSI), comprises the linear average of the total

received power (in [W]) observed only in OFDM symbols of measurement time resource(s), in

the measurement bandwidth, over N number of resource blocks from all sources, including co-

channel serving and non-serving cells, adjacent channel interference, thermal noise etc. The

For CSI-RSRQ determination CSI reference signals transmitted on antenna port 3000 according

For intra-frequency CSI-RSRQ measurements, if the measurement gap is not configured, UE is

not expected to measure the CSI-RS resource(s) outside of the active downlink bandwidth part.

For frequency range 1, the reference point for the CSI-RSRQ shall be the antenna connector of

the UE. For frequency range 2, CSI-RSSI shall be measured based on the combined signal from

antenna elements corresponding to a given receiver branch, where the combining for CSI-RSSI

shall be the same as the one used for CSI-RSRP measurements. For frequency range 1 and 2, if

receiver diversity is in use by the UE, the reported CSI-RSRQ value shall not be lower than the

Definition SS signal-to-noise and interference ratio (SS-SINR), is defined as the linear average over the

power contribution (in [W]) of the resource elements carrying secondary synchronisation signals

divided by the linear average of the noise and interference power contribution (in [W]). If SS-