5 Document structure of physical layer specification

38.2013GPPGeneral descriptionNRPhysical layerRelease 17TS

5.1 Overview

The physical layer specification consists of a general document (TS 38.201), and seven documents (TS 38.202, 38.211 through 38.215, and 37.213). The relation between the physical layer specifications in the context of the higher layers is shown in Figure 2.

Figure 2: Relation between Physical Layer specifications

5.2 TS 38.201: Physical layer; General description

The scope is to describe:

– The contents of the Layer 1 documents (TS 38.200 series);

– Where to find information;

5.3 TS 38.202: Physical layer services provided by the physical layer

The scope is to describe services provided by the physical layer, and to specify:

– Services and functions of the physical layer;

– Model of physical layer of the UE;

– Parallel transmission of simultaneous physical channels and SRS;

– Measurements provided by the physical layer.

5.4 TS 38.211: Physical channels and modulation

The scope is to establish the characteristics of the Layer-1 physical channels, generation of physical layer signals and modulation, and to specify:

– Definition of the uplink, downlink and sidelink physical channels;

– Frame structure and physical resources;

– Modulation mapping (BPSK, QPSK, etc);

– OFDM signal generation;

– Scrambling, modulation and upconversion;

– Layer mapping and precoding;

– Physical shared channel in uplink, downlink and sidelink;

– Reference signal in uplink, downlink and sidelink;

– Physical random access channel;

– Primary and secondary synchronization signals.

5.5 TS 38.212: Multiplexing and channel coding

The scope is to describe the transport channel and control channel data processing, including multiplexing, channel coding and interleaving, and to specify:

– Channel coding schemes;

– Rate matching;

– Uplink transport channels and control information;

– Downlink transport channels and control information;

– Sidelink transport channels and control information.

5.6 TS 38.213: Physical layer procedures for control

The scope is to establish the characteristics of the physical layer procedures for control, and to specify:

– Synchronization procedures;

– Uplink power control;

– Random access procedure;

– UE procedure for reporting control information;

– UE procedure for receiving control information.

5.7 TS 38.214: Physical layer procedures for data

The scope is to establish the characteristics of the physical layer procedures for data, and to specify:

– Power control;

– Physical downlink shared channel related procedures;

– Physical uplink shared channel related procedure;

– Physical sidelink shared channel related procedure.

5.8 TS 38.215: Physical layer measurements

The scope is to establish the characteristics of the physical layer measurements, and to specify:

– Control of UE/NG-RAN measurements;

– Measurement capabilities for NR.

5.9 TS 37.213: Physical layer procedures for shared spectrum channel access

The scope is to establish the characteristics of the physical layer procedures for shared spectrum channel, and to specify:

– Downlink channel access procedures;

– Uplink channel access procedures.

Annex A (informative):
Preferred mathematical notations

The following table contains the preferred mathematical notations used in L1 documentation.

item	notation
multiply product	cross sign, e.g. ab
matrix product	dot sign, e.g. ab
scalar product (product of a matrix by a scalar)	dot sign, scalar should precede matrix e.g.
matrix dimensioning	number of rows  number of column, e.g.: RC
Kronecker product	ab
bracketing of sets (all elements of same type, not ordered elements)	curly brackets {}, e.g. {a1, a2, …,ap}, or
bracketing of lists (all elements not necessary of same type, ordered elements)	round brackets (), e.g. (A, u, x)
bracketing of sequences (all elements of same type, ordered elements)	angle brackets, e.g. <a1, a2, …,ap> or
bracketing of function argument	round brackets, e.g. f(x)
bracketing of array index	square brackets, e.g. a[x]
bracketing of matrix or vector	square brackets [], e.g. , , or
Separation of indexes	use a comma : e.g. Ni,j
use of italic for symbols	a symbol should be either in italic or in normal font, but mixing up should be avoided.
bracketing of arithmetic expression to force precedence of operations	round brackets : e.g.
necessity of bracketing arithmetic expressions	When only + and  bracketing is not necessary. When the mod operator is used explicit bracketing of mod operands and possibly result should be done.
number type	in a context of non negative integer numbers, some notes should stress when a number is signed, or possibly fractional.
binary xor and and	respectively use + or . If no "mod 2" is explicitly in the expression some text should stress that the operation is modulo 2.
matrix or vector transpose	vT
11 matrices	implicitly cast to its unique element.
vector dot product	uTv for column vectors, and uvT for line vectors
complex conjugate	v*
matrix or vector Hermitian transpose	vH
real part and imaginary part of complex numbers.	Re(x) and Im(x)
Modulo operation (including negative value)	Let be the integer quotient of and , is integer, is remainder then , where for all and (Note that is floor operation to round the elements of to the nearest integers towards minus infinity)

Annex B (informative):
Change history

Change history
Date	Meeting	TDoc	CR	Rev	Cat	Subject/Comment	New version
2017-05	RAN1#89	R1-1708435				Draft skeleton	0.0.0
2017-07	AH_1706	R1-1712012				Inclusion of agreements up to and including RAN1 NR Ad-Hoc #2	0.0.1
2017-08	RAN1#90	R1-1713894				Updates according to email discussion " [NRAH2-03-201] TS 38.201"	0.0.2
2017-08	RAN1#90	R1-1715069				Clean version	0.1.0
2017-08	RAN1#90	R1-1715319				Inclusion of agreements up to and including RAN1 #90	0.1.1
2017-09	RAN #77	RP-171998				For information to RAN	1.0.0
2017-11	RAN1#90b	R1-1719242				Inclusion of agreements up to and including RAN1#90bis	1.0.1
2017-11	RAN1#91	R1-1721046				Endorsed version by RAN1#90bis (email thread)	1.1.0
2017-12	RAN1#91	R1-1721339				Editorial update – Endorsed version by RAN1#91 (email thread)	1.2.0
2017-12	RAN#78	RP-172530				Endorsed version for approval by plenary.	2.0.0
2017-12	RAN#78					Approved by plenary – Rel-15 spec under change control	15.0.0
2019-12	RAN#86	RP-192661	0001	–	B	Introduction of V2X, NR-based access to unlicensed spectrum, integrated access backhaul for NR and remote interference management	16.0.0
2021-12	RAN#94-e	RP-212982	0002	–	B	Introduction of DL 1024QAM	17.0.0