Standard No.:	GB/T 31983.31-2017
Chinese Name:	低压窄带电力线通信 第31部分：窄带正交频分复用电力线通信 物理层规范
English Name:	Narrow band power line communication over low-voltage mains—Part 31:Narrow band orthogonal frequency division multiplexing power line—Communication physical layer specification
Professional Classification:	N22 Electric energy measurement and load control system
ICS Classification:	17.220.20 Measurement of electrical and magnetic quantities
Issued by:
Issued on:	2017-05-12
Implemented on:	2017-12-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:
Price(USD):	please email coc@codeofchina.com for quotation
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1 Scope

This part of GB/T 31983 specifies the physical layer protocol specification of narrow band power line communication (PLC) over low-voltage mains based on orthogonal frequency division multiplexing (OFDM) technology, including physical layer protocol data unit format (PPDU), channel coding, interleaving, OFDM modulation, physical layer signal frame generation and continuous transmission modes and power-frequency synchronous zero-crossing time slot transmission mode, etc.

This part is applicable to the data transmission and communication of 3~500kHz frequency band through indoor or outdoor low-voltage AC distribution line or DC transmission line. A complete PLC system composed of multiple communication nodes which is established on low-voltage distribution network based on physical layer protocol specification of this part also includes data link layer (DLL, which is composed of medium access control sublayer MAC and logical link control sublayer LLC) and applications related to specific application situations. Typical application situations of narrow band power line communication over low-voltage mains includes electric energy meter automatic meter reading (AMR), AMI/AMM, smart home control, street lamp control, intelligent building, four-meter automatic reading and other applications of Smart Grid, e.g. electric vehicle charge control.

This part is also applicable to medium-voltage power line communication and urban-rural long-distance power line communication.

2 Normative References

The following referenced document is indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 31983.11-2015 Narrow Band Power Line Communication over Low-voltage Mains - Part 11: 3kHz~500kHz Frequency Bands and Classifications, Limits of Output Level and Electromagnetic Disturbances

3 Terms, Definitions, Symbols and Abbreviations

3.1 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1.1

power line communication

the communication or control realized between data terminals by transmission with power line as physical medium through modulating information data to appropriate carrier frequency

3.1.2

power line carrier communication

i.e. power line communication

3.1.3

narrow band power line communication

the power line communication with carrier frequency at frequency band of 3~500kHz