YD/T 3340-2018 PDF English
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Technical requirements of air interface of LTE-based vehicular communication
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YD/T 3340-2018: Technical requirements of air interface of LTE-based vehicular communication---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/YDT3340-2018
YD
COMMUNICATION INDUSTRY STANDARD
ICS 33.060.99
M36
Technical requirements of air interface of LTE-based
vehicular communication
Issued on. DECEMBER 21, 2018
Implemented on. APRIL 01, 2019
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
Introduction... 4
1 Scope... 5
2 Normative references... 5
3 Abbreviations... 6
4 Overview... 9
5 PC5 interface technical requirements... 11
5.1 Physical layer... 11
5.2 MAC layer... 52
5.3 RLC layer... 69
5.4 PDCP layer... 70
5.5 RRC layer... 72
5.6 UE process in idle mode... 178
6 Uu interface's technical requirements... 180
6.1 Physical layer... 180
6.2 MAC layer... 184
6.3 RLC layer... 185
6.4 PDCP layer... 185
6.5 RRC layer... 185
6.6 UE process in idle mode... 200
1 Scope
This standard specifies the air interface technical requirements for the LTE-
based vehicular communication technology, including the PC5 interface
technical requirements for the sidelink communication mode between terminals,
as well as the Uu interface technical requirements for the uplink/downlink
communication mode between the terminal and the base station. It specifies
the physical layer, MAC layer, RLC layer, PDCP layer, RRC layer as well as the
UE process in idle mode under these two working modes.
This standard applies to LTE-based vehicular communication systems,
including V2V, V2I, V2P, V2N communication scenarios.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
YD/T 3340-2018 Technical requirements of air interface of LTE-based
vehicular communication
3GPP TS 23.285 (Release 14) Technical Specification Group Services and
System Aspects; Architecture enhancements for V 2X services
3GPP TS 24.334 (Release 14) Proximity-services (ProSe) User Equipment
(UE) to ProSe function protocol aspects; Stage 3
3GPP TS 24.386 (Release 14) User Equipment (UE) to V2X control function;
protocol aspects; Stage 3
3GPP TS 36.101 (Release 14) Evolved Universal Terrestrial Radio Access
(E-UTRA); User Equipment (UE) radio transmission and reception
3GPP TS 36.133 (Release 14) Evolved Universal Terrestrial Radio Access
(E-UTRA); Requirements for support of radio management
3GPP TS 36.211 (Release 14) Evolved Universal Terrestrial Radio Access
(E-UTRA); Physical channels and modulation
3GPP TS 36.212 (Release 14) Evolved Universal Terrestrial Radio Access
3 Abbreviations
The following abbreviations apply to this document.
3GPP. The 3rd Generation Partnership Project
AM. Acknowledged Mode
BSR. Buffer Status Report
CBR. Channel Busy Ratio
CR. Channel Occupancy Ratio
CRC. Cyclic Redundancy Check
CSI. Channel Status Indicator
DCI. Downlink Control Information
DL. Downlink
DFN. Direct Frame Number
DMRS. Demodulation Reference Signal
eNB. E-UTRAN Node B
E-PDCCH. Enhanced Physical Downlink Control Channel
E-UTRA. Evolved Universal Terrestrial Radio Access
E-UTRAN. Evolved Universal Terrestrial Radio Access Network
FDD. Frequency Division Duplex
FDM. Frequency Division Multiplex
GNSS. Global Navigation Satellite System
IE. Information Element
4 Overview
The LTE-based wireless communication technology for vehicular networking is
divided into two working modes. One is the sidelink communication between
terminals, where the air interface between the terminals is called the PC5
interface; the other is the uplink/downlink communication mode between the
terminal and the base station, where the air interface between the terminal and
the base station is called Uu interface.
5 PC5 interface technical requirements
5.1 Physical layer
5.1.1 Physical channel and modulation
5.1.1.1 Overview
5.1.1.2 Time slot structure and physical resources
5.1.1.3 Physical shared channel of sidelink
5.1.1.3.1 Scrambling
The bit block (where Mbit is the number of bits sent)
transmitted on the PSSCH in a subframe shall be scrambled according to 5.3.1
of 3GPP TS 36.211 (Release 14).
5.1.1.9 Timing
A sidelink radio frame numbered i sent by the UE shall start from the
seconds before the UE's corresponding timing reference
frame. The UE does not need to receive the sidelink or downlink transmission
before 624Ts after the end of a sidelink transmission, where. The
timing relationship of the sidelink is as shown in Figure 4.
5.1.3.2.3.Here refers to the resource reservation time interval
indicated by the higher layer.
If the UE is configured with the high-level parameter cr-Limit and transmits
PSSCH on subframe n, for any priority value k, the UE shall meet the restriction
conditions of formula (5).
5.1.3.2.2 UE process for receiving PSSCH
For the sidelink transmission mode 3, by detecting SCI format 1 on the PSCCH,
the UE shall decode the PSSCH according to the detected SCI format 1,
meanwhile the corresponding PSSCH resource is configured by the higher
layer.
5.2.2 MAC process
5.2.2.1 Data transmission of sidelink share channel (SL-SCH)
5.2.2.1.1 Data transmission of sidelink shared channel
5.5.5.2 Sidelink pre-configuration parameters
5.5.5.2.1 Specified parameters
This clause only lists the parameters with specified values in the standard, see
Table 23 for details.
5.5.5.2.2 Pre-configured parameters
This ASN.1 part is the beginning of the definition of pre-configured sidelink
parameters in E-UTRAN.
6 Uu interface's technical requirements
6.1 Physical layer
6.1.1 Physical channel and modulation
The physical channel and modulation of the uplink/downlink communication
mode between the terminal and the base station based on the Uu interface shall
comply with the Chapter 1 to Chapter 8 of 3GPP TS 36.211 (Release 14) on
the physical layer channel and modulation.
6.1.2 Multiplexing and channel coding
6.1.2.1 Overview
The uplink/downlink communication method between the terminal and the base
station based on the Uu interface can support uplink semi-persistent scheduling
(SPS) transmission; the uplink SPS configuration is activated or released
through DCI format 0.In addition to the provisions in 6.1.2, it shall also comply
with the provisions of 3GPP TS 36.211 (Release 14) on multiplexing and
channel coding.
6.1.4 Physical layer measurement
The physical layer measurement of the uplink/downlink communication mode
between the terminal and the base station based on the Uu interface shall
comply with the provisions of 3GPP TS 36.214 (Release 14).
6.2 MAC layer
The Uu interface-based uplink/downlink communication between the terminal
and the base station can support multiple SPS configurations. The eNB
provides the UE with the following information through RRC messages.
6.3 RLC layer
In the uplink/downlink communication mode between the terminal and the base
station based on the Uu interface, the UE shall establish the RLC entity
according to the RRC reconfiguration signaling sent by the eNB, meanwhile
support all the RLC functions of UL DTCH, UL DTCH and CCCH as specified
by 3GPP TS 36.322 (Release 14).
6.4 PDCP layer
The PDCP layer protocol of the uplink/downlink communication between the
terminal and the base station based on the Uu interface shall comply with the
provisions of 3GPP TS 36.323 (Release 14).
6.5 RRC layer
6.5.1 Overview
The RRC layer protocol of the uplink/downlink communication mode between
the terminal and the base station based on the Uu interface shall meet the
provisions of 6.5, it shall meet the provisions of 3GPP TS 36.331 (Release 14).
The clause 6.5 specifies the messages and information elements related to Uu
V2X. For complete ASN.1, see 3GPP TS 36.331 (Release 14).
6.5.2 UL SPS
For V2X communication with Uu port scheduling resource allocation, the eNB
can configure up to 8 SPS configurations with different parameters, meanwhile
all SPS configurations can be activated at the same time. The
activation/deactivation of the SPS configuration is controlled by the eNB
through the PDCCH. Uu port logical channel's priority is used for SPS V2X
communication on Uu port.
6.5.3 Downlink broadcast
V2X downlink can support MBMS broadcast. When using MBMS to transmit
downlink V2X messages, localized MBMS defined in 3GPP TS 23.285
(Release14) can be used to improve the delay. A single TMGI can be used for
non-overlapping MBMS service areas; multiple TMGI can be used for
overlapping MBMS service areas, thereby supporting the small MBMS areas of
V2X.
6.6 UE process in idle mode
The uplink/downlink communication mode between the terminal and the base
station based on the Uu interface shall comply with the provisions on the idle
state UE behavior of 3GPP TS 36.304 (Release 14).
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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