CN108966240A - The multichannel transmission systems of across frequency range fusion electric power wireless private network - Google Patents

The multichannel transmission systems of across frequency range fusion electric power wireless private network Download PDF

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Publication number
CN108966240A
CN108966240A CN201810505699.5A CN201810505699A CN108966240A CN 108966240 A CN108966240 A CN 108966240A CN 201810505699 A CN201810505699 A CN 201810505699A CN 108966240 A CN108966240 A CN 108966240A
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CN
China
Prior art keywords
frequency range
board
core net
far
module
Prior art date
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Pending
Application number
CN201810505699.5A
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Chinese (zh)
Inventor
邵炜平
吕勇
马平
吕舟
凌芝
朱航
赏炜
徐志强
陆阳
张东磊
闫淑辉
严玉平
陈静
张瑞兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Global Energy Interconnection Research Institute
Potevio Information Technology Co Ltd
Putian Information Technology Co Ltd
Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Global Energy Interconnection Research Institute
Putian Information Technology Co Ltd
Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Zhejiang Electric Power Co Ltd, Global Energy Interconnection Research Institute, Putian Information Technology Co Ltd, Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201810505699.5A priority Critical patent/CN108966240A/en
Publication of CN108966240A publication Critical patent/CN108966240A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18Network planning tools
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges

Abstract

The present invention provides the multichannel transmission systems of across frequency range fusion electric power wireless private network, belong to the communications field, the multichannel transmission systems include base station, and the far-end RF module being connected on base station and across frequency range core net, are connected with service port in the other side across frequency range core net;Base station includes the first across the frequency range baseband board and the second across frequency range baseband board for connecting the first far-end RF module and the second far-end RF module, it is connected with the first transmission board of across frequency range core net connection on the first across frequency range baseband board, the second transmission board of across frequency range core net connection is connected on the second across frequency range baseband board.Physical isolation scheme is used by whole in Transmission system, solve the problems, such as that the electric power wireless private network built based on single frequency network mode is still difficult while meeting transmission bandwidth, reliability and network coverage requirement, different frequency range wireless private network advantage is had both, the multi service access demands such as highly reliable, the wide big connection of covering of power grid high-speed wideband, low time delay can be met simultaneously.

Description

The multichannel transmission systems of across frequency range fusion electric power wireless private network
Technical field
The invention belongs to the communications field, in particular to the multichannel transmission systems of across frequency range fusion electric power wireless private network.
Background technique
Currently, domestic prevailing power wireless private network is all made of LTE (Long Term Evolution, long term evolution) technology System carries out the construction of electric power wireless communication system based on two kinds of frequency ranges of 230MHz and 1800MHz.From the point of view of application effect, LTE230 is based on 223-235MHz power industry authorized spectrum band, has the advantages such as covering is remote, networking cost is low, however due to electric power Industry is only approved using 1MHz bandwidth (40 channels, single channel 25kHz) discrete in the frequency range totally, and network capacity is temporarily not Foot, the still difficult multiple service supporting demand for fully meeting wireless private network.LTE1800 is capable of providing height based entirely on public network LTE technology Band width service guarantee has from core net, the perfect industrial chain of base station to terminal, however grid company needs individually application 1785-1805MHz frequency range, single base station covering radius is small, and network construction cost is higher compared with LTE230.All in all, two kinds of technologies System respectively has advantage and disadvantage, is suitble to different power business scenes respectively.
With the continuous propulsion that smart grid is built, the communication requirement of electric power wireless private network is also rapidly developing.It is wireless special How net is realized that one throws the net and network while carrying power grid broadband, narrowband differentiated service, is realized as grid company uncommitted assets " a net multipotency ", becomes urgent problem to be solved.From the point of view of current applicable cases, it is based on LTE230 or LTE1800 single frequency network The wireless private network of mode is still difficult to meet transmission bandwidth, reliability and network coverage requirement simultaneously, and between product mutually Independent, access net transportation level, which is not able to achieve, to interconnect so that wireless network support the practicability of intelligent adapted electric industry business by To limitation.
Summary of the invention
In order to solve shortcoming and defect existing in the prior art, the present invention provides using a variety of of internal insulation setting Equipment is to improve the multichannel transmission systems of across the frequency range fusion electric power wireless private network of transmission line isolation.
In order to reach above-mentioned technical purpose, the present invention provides the multi-channel transmission systems of across frequency range fusion electric power wireless private network System, the multichannel transmission systems include base station, are connected with far-end RF module in the side of base station, are connected in the other side of base station It is connected to across frequency range core net, in the multichannel transmission systems, further includes:
Synchronous Digital Hierarchy channel is additionally provided between base station and across frequency range core net, in across frequency range core net far from base station The other side be connected with physically-isolated service port realized based on switching equipment;
Wherein, base station includes the first across the frequency range base that can connect the first far-end RF module and the second far-end RF module Band plate and the second across frequency range baseband board are connected with the first transmission of across frequency range core net connection on the first across frequency range baseband board Plate, is connected with the second transmission board of across frequency range core net connection on the second across frequency range baseband board, the first far-end RF module and The radio frequency signal frequency range that second far-end RF module is supported is different.
Optionally, on the first far-end RF module and the second far-end RF module being connect with the first across frequency range baseband board It is connected with the management information great Qu terminal including acquisition terminal, mobile terminal, in first connect with the second across frequency range baseband board The productions control great Qu terminal such as distribution terminal, smart control terminal is connected on far-end RF module and the second far-end RF module, no With the isolation for realizing access of eating dishes without rice or wine between service terminal by different frequency or different time-gap.
Optionally, the Synchronous Digital Hierarchy channel includes the first board being connected with the first transmission board, and with second The second connected board of transmission board;
It is connected with the first core net in across frequency range core net far from the side of the first transmission board in the first board, second Board is connected with the second core net in across frequency range core net far from the side of the second transmission board.
Optionally, control platform and essence control platform are connected with far from the side of the second transmission board in second core net.
Optionally, physical isolation route exchange device is equipped between second core net and control platform.
Optionally, Synchronous Digital Hierarchy subchannel is additionally provided between second core net and essence control platform.
Technical solution provided by the invention has the benefit that
Physical isolation scheme is used by whole in Transmission system, solves and is built at this stage based on single frequency network mode The still difficult problem for meeting transmission bandwidth, reliability and network coverage requirement simultaneously of electric power wireless private network, have both different frequencies Section wireless private network advantage can meet the multi service access such as highly reliable, the wide big connection of covering of power grid high-speed wideband, low time delay simultaneously Demand.
Detailed description of the invention
It, below will be to attached drawing needed in embodiment description in order to illustrate more clearly of technical solution of the present invention It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, general for this field For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural block diagram of the multichannel transmission systems of across frequency range fusion electric power wireless private network provided by the invention;
Fig. 2 is melting across frequency range based on unified core net amalgamation mode between alien frequencies electric power wireless private network provided by the invention It is combined rack composition;
Fig. 3 is the part-structure frame in the multichannel transmission systems of across frequency range fusion electric power wireless private network provided by the invention Figure.
Specific embodiment
To keep structure and advantage of the invention clearer, structure of the invention is made further below in conjunction with attached drawing Description.
Embodiment one
In order to reach above-mentioned technical purpose, the present invention provides the multi-channel transmission systems of across frequency range fusion electric power wireless private network System, as shown in Figure 1, the multichannel transmission systems include base station, is connected with far-end RF module in the side of base station, in base station The other side be connected with across frequency range core net, in the multichannel transmission systems, further includes:
Synchronous Digital Hierarchy channel is additionally provided between base station and across frequency range core net, in across frequency range core net far from base station The other side be connected with physically-isolated service port realized based on switching equipment;
Wherein, base station includes the first across the frequency range base band for being all connected with the first far-end RF module and the second far-end RF module Plate and the second across frequency range baseband board are connected with the first transmission board of across frequency range core net connection on the first across frequency range baseband board, The second transmission board of across frequency range core net connection, the first far-end RF module and second are connected on the second across frequency range baseband board The radio frequency signal frequency range that far-end RF module is supported is different.
In an implementation, the subject of implementation of the multichannel transmission systems is the base station of communication, and the side of the base station respectively connects Be connected to the far-end RF module (Radio Remote Unit, RRU) communicated with terminal, the other side of base station with across frequency range Core net connection.General thought across frequency range is to merge wide covering power, the big bandwidth of Yi Jigao, wide-band of low, narrow frequency range Ability.The different frequency of radio open, different time-gap realize the physical isolation of production control business and management information business.
In order to realize the channel isolation in information exchanging process, it is directed at across frequency range baseband board in a base station and transmission board Area of isolation has carried out piecemeal processing, i.e., different for the business transmission type of production control great Qu and management information great Qu, will Across frequency range baseband board and transmission board are divided into the first across frequency range baseband board corresponding with the area Liang Zhong great and the second across frequency range base respectively Band plate, the first transmission board and the second transmission board.In such a way that across frequency range baseband board and transmission board to be carried out to isolation setting, guarantee The isolation of information transmission is realized in base station.
Base station is based on distributed structure/architecture, including BBU (Base Band Unit, Base Band Unit) and RRU (Radio Remote Unit, radio frequency unit), it is separated from each other between the two, transmission is baseband signal, optical fiber can be used to transmit, transmission range General reachable 5km or more.Under unified core net amalgamation mode, LTE230 to realize that wide area, depth are covered as target, LTE1800 can be disposed in the coverage area of LTE230, can also be disposed outside the coverage area of LTE230, and emphasis passes through LTE1800 covers the big hot spot region (video monitoring in such as substation) of service set, data volume, to meet differentiated service Access demand.Furthermore, it is possible to which it is attached that signal extended to wireless network coverage hole using optical fiber by disposing BBU in substation RRU is closely disposed again, to solve the weak covering problem of network.For the weak area of coverage of the usually wireless network such as basement, pipe well Domain can use the ad hoc multihop cascade network mode of wireless terminal, realize the flexible access of end service node.
Based on the base station for realizing information transmission isolation, production control great Qu may be implemented and management information great Qu business is transmitted The physical isolation in channel.It is proposed that across frequency range fusing wireless private network passes through the different frequencies, time interval resource of eating dishes without rice or wine, base station twin spans frequency range Baseband board, transmission board/port, twin spans frequency range core net/board and physically-isolated SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) channel for different business provides special line channel, realize across frequency range multi-channel transmission, and lead to It is real to cross APN (Access Point Name, access point name)/VPN (Virtual Private Network, Virtual Private Network) Physical isolation in existing management information great Qu between business.To solve the electric power built at this stage based on single frequency network mode The still difficult problem for meeting transmission bandwidth, reliability and network coverage requirement simultaneously of wireless private network, it is wireless to have both different frequency range Private network advantage can meet the multi service access demands such as highly reliable, the wide big connection of covering of power grid high-speed wideband, low time delay simultaneously.
Optionally, on the first far-end RF module and the second far-end RF module being connect with the first across frequency range baseband board It is connected with the management information great Qu terminal including acquisition terminal, mobile terminal, in first connect with the second across frequency range baseband board The productions control great Qu terminal such as distribution terminal, smart control terminal is connected on far-end RF module and the second far-end RF module, no With the isolation for realizing access of eating dishes without rice or wine between service terminal by different frequency or different time-gap.
In an implementation, acquisition terminal, mobile terminal, distribution terminal, smart control terminal pass through respectively different wireless terminals with And RRU access, wherein RRU230Represent the radio frequency unit of LTE230, RRU1800Represent the radio frequency unit of LTE1800.
In base station side, eat dishes without rice or wine to access frequency or time slot realization production control great Qu and management information great Qu industry by different The physical isolation of business, base station uses twin spans frequency range baseband board, and has property by oneself using grid companies such as substations as far as possible and carry out Construction.In core-network side, realize that core net is disposed in the districts and cities of city's Company communication computer room, different equipment of the core network/board point Control great Qu and management information great Qu business Cheng Zai not produced.
In order to meet requirement of a variety of different business to traffic rate, the transmission method that the application proposes is proposed in 230MHz On the basis of, across frequency range fusion electric power wireless private network is set up in conjunction with 1800MHz frequency range, takes into account local hot spot while wide area covering The high bandwidth requirements in area, network includes simultaneously broadband connections terminal and narrow band communication terminal, can support video monitoring simultaneously The low speed such as highly reliable, the acquisition monitoring of the low time delays such as equal high-speed widebands, accurate load control system such as extensively cover at the diversified service terminal deeply Access, and realize the docking with grid company different business platform, realize " the width one " and " a net multipotency " of network.
Fig. 2 be between alien frequencies electric power wireless private network provided in an embodiment of the present invention based on unified core net amalgamation mode across Frequency range combination network architecture diagram.Technical principle are as follows: by the LTE230 for using 230MHz communication frequency and use 1800MHz communication frequency The LTE1800 radio channel of rate is unified in media access control layer or more, when base station design consider LTE230 and LTE1800 without The differences such as line frequency, bandwidth, using independent parameter and modulation system, and using LTE230 with LTE1800 difference board Designing technique requires to meet the differentiation of the two.Under which, communicated between LTE230 terminal and LTE1800 terminal very simple Just, protocol conversion process is not needed, and integrally has the advantages that service bearer is high-efficient, wireless private network construction cost is low.
Optionally, the Synchronous Digital Hierarchy channel includes the first board being connected with the first transmission board, and with second The second connected board of transmission board;
It is connected with the first core net in across frequency range core net far from the side of the first transmission board in the first board, second Board is connected with the second core net in across frequency range core net far from the side of the second transmission board.
In an implementation, in order to realize the physical isolation of entire communication process, it is arranged between base station and across frequency range core net SDH also for management information great Qu business and production control great Qu business be divided into the first board and the second board.
It is corresponding with two pieces of transmission boards in base station used here as two boards, and two boards are respectively and across frequency range Two core nets in core net respectively correspond, to realize that information between base station and core net transmitted is isolated.
Optionally, control platform and essence control platform are connected with far from the side of the second transmission board in second core net. Physical isolation route exchange device is equipped between second core net and control platform.In second core net and essence control Synchronous Digital Hierarchy subchannel is additionally provided between platform.Other industry are connected with far from the side of the first transmission board in the first core net Business platform.
In an implementation, as shown in figure 3, being also connected with respectively far from the side of the second transmission board to control in the second core net The control platform and the essence control platform that smart control business is controlled that business is controlled.In order to realize the second core net and control The information isolation of platform, essence control platform processed, is equipped with the object for playing information buffer action between the second core net and control platform Reason isolation route exchange device (APN/VPN).
Match electric terminal communication access net application environment towards intelligence, and combine cost accounting, wireless private network is suitable for industry Business terminal distribution density more concentrate, the scene that security requirement is high.The type of service that electric power wireless private network can carry is main It is divided into power grid control class, information collection class, three kinds of mobile application class.Partial service communications capacity is big, requirement of real-time compared with Height, such as video monitoring, intelligent business hall business.Partial service communications capacity is little, but to real-time, reliability requirement It is very high, such as the monitoring of power distribution automation, accurate load control system, distributed generation resource, active distribution network differential protection.
Partial service is not high to real-time, transmission rate request, but amount of communications is very huge, information security demand compared with Height, such as power information acquisition, electric automobile charging pile, electric network state monitoring.Partial service is to mobility, interactive communication energy Force request is higher, such as electric power asset whole life-cycle management, mobile operation, mobile inspection, mobile marketing, business administration correlation industry Business etc..It is additionally provided with the Synchronous Digital Hierarchy subchannel based on SDH between the second core net and essence control platform, to realize to more The whole control of kind transmission services.
In the multichannel transmission systems that the present embodiment proposes, for QoS (Quality of Service, service quality) More demanding accurate load control system business distributes dedicated time domain, frequency domain resource for it, realizes special line channel transfer, other Business provides QoS priority guarantee by system then using shared network access mode.Plan LTE230, LTE1800 radio frequency unit It can cover power grid control Terminal Type (such as power distribution automation " three is distant ", accurate load control system), realization more rapidly, is more safely controlled System;The information collections Terminal Type emphasis such as power information acquisition, electric network state monitoring are covered by LTE230, are met Future Information and are adopted Collection amount is more, the higher requirement of the frequency;The mobile applications Terminal Type emphasis such as mobile operation, mobile marketing are covered by LTE1800, The requirement for meeting each profession of grid company, supporting live traffic (especially video monitoring class high bandwidth business) whenever and wherever possible.
Across frequency range multi-channel transmission is based on business QCI (QoS Class Identifier, qos parameter) priority and realizes industry Business data stream scheduling provides network transmission resource guarantee for QCI priority by configuring QCI priority for different business.It is first First, according to different electric power data business to time delay, transmission rate, the different demands of reliability, the electric power number that network is carried Priority division is carried out according to business.When base station is dispatched, time slot, frequency resource are distributed according to business QCI priority, it is preferential to guarantee Control the highly reliable service access of class low time delay.When detecting congestion, the low priority industry after being located at heavy congestion threshold value is abandoned On the one hand business preferentially ensure that the QoS demand of high-priority service, on the other hand alleviate the Congestion Level SPCC of congested node.? When low priority traffice to be dropped re-establishes transmission channel, the time delay and available bandwidth of alternative path are comprehensively considered, no It can only guarantee the QoS of business, and optimize Internet resources, the balanced load of entire wireless network.
The present invention provides the multichannel transmission systems of across frequency range fusion electric power wireless private network, the multichannel transmission systems Including base station, it is connected with far-end RF module in the side of base station, across frequency range core net is connected in the other side of base station, in institute State in multichannel transmission systems, further includes: Synchronous Digital Hierarchy channel is additionally provided between base station and across frequency range core net, across Frequency range core net is connected with far from the other side of base station and realizes physically-isolated service port based on switching equipment;Base station includes equal The first across the frequency range baseband board and the second across frequency range baseband board of the first far-end RF module and the second far-end RF module can be connected, It is connected with the first transmission board of across frequency range core net connection on the first across frequency range baseband board, connects on the second across frequency range baseband board It is connected to the second transmission board of across frequency range core net connection.First far-end RF module and the second far-end RF module are supported wireless Radio frequency signal frequency range is different.Physical isolation scheme is used by whole in Transmission system, is solved at this stage based on single The still difficult difficulty for meeting transmission bandwidth, reliability and network coverage requirement simultaneously of the electric power wireless private network of frequency networking mode construction Topic, has both different frequency range wireless private network advantage, can meet that power grid high-speed wideband, low time delay are highly reliable, extensively cover Dalian simultaneously Connect equal multi service access demand.
Each serial number in above-described embodiment is for illustration only, the assembling for not representing each component or the elder generation in use process Sequence afterwards.
The above description is only an embodiment of the present invention, is not intended to limit the invention, all in the spirit and principles in the present invention Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (6)

1. the multichannel transmission systems of across frequency range fusion electric power wireless private network, the multichannel transmission systems include base station, in base The side stood is connected with far-end RF module, is connected with across frequency range core net in the other side of base station, which is characterized in that described In multichannel transmission systems, further includes:
Synchronous Digital Hierarchy channel is additionally provided between base station and across frequency range core net, in across frequency range core net far from the another of base station Side, which is connected with, realizes physically-isolated service port based on switching equipment;
Wherein, base station include be all connected with the first far-end RF module and the second far-end RF module the first across frequency range baseband board and Second across frequency range baseband board is connected with the first transmission board of across frequency range core net connection on the first across frequency range baseband board, the The second transmission board of across frequency range core net connection, the first far-end RF module and the second distal end are connected on two across frequency range baseband boards The radio frequency signal frequency range that radio-frequency module is supported is different.
2. the multichannel transmission systems of across frequency range fusion electric power wireless private network according to claim 1, which is characterized in that It is connected on the first far-end RF module and the second far-end RF module being connect with the first across frequency range baseband board including acquisition eventually End, mobile terminal management information great Qu terminal, in the first far-end RF module being connect with the second across frequency range baseband board and the It is connected with the productions control great Qu terminal such as distribution terminal, smart control terminal on two far-end RF modules, leads between different business terminal It crosses different frequency or different time-gap realizes the isolation for access of eating dishes without rice or wine.
3. the multichannel transmission systems of across frequency range fusion electric power wireless private network according to claim 2, which is characterized in that institute Stating Synchronous Digital Hierarchy channel includes the first board being connected with the first transmission board, and the second plate being connected with the second transmission board Card;
It is connected with the first core net in across frequency range core net far from the side of the first transmission board in the first board, in the second board Side far from the second transmission board is connected with the second core net in across frequency range core net.
4. the multichannel transmission systems of across frequency range fusion electric power wireless private network according to claim 3, which is characterized in that Second core net is connected with control platform and essence control platform far from the side of the second transmission board.
5. the multichannel transmission systems of across frequency range fusion electric power wireless private network according to claim 4, which is characterized in that Physical isolation route exchange device is equipped between second core net and control platform.
6. the multichannel transmission systems of across frequency range fusion electric power wireless private network according to claim 4, which is characterized in that Synchronous Digital Hierarchy subchannel is additionally provided between second core net and essence control platform.
CN201810505699.5A 2018-05-24 2018-05-24 The multichannel transmission systems of across frequency range fusion electric power wireless private network Pending CN108966240A (en)

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