CN103078665B - Based on the joint transmission method of power line communication and radio communication - Google Patents
Based on the joint transmission method of power line communication and radio communication Download PDFInfo
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Abstract
The present invention relates to the data transmission technology of the communications field, it discloses a kind of joint transmission method based on power line communication and radio communication, solve in conventional art and only rely on power line communication or radio communication can not meet the problem of the demand of high speed data transfer.The method may be summarized to be: business datum waiting for transmission is split into power line communication data to be transmitted and wireless communication data to be transmitted, transmit respectively by power line channel and wireless channel; After receiving power line communication data and wireless communication data by corresponding receiving terminal, these two kinds of data are merged into business datum.The present invention is applicable to the high-speed transfer to business datum.
Description
Technical field
The present invention relates to the data transmission technology of the communications field, specifically, relate to a kind of joint transmission method based on power line communication and radio communication, to realize business data transmission at a high speed.
Background technology
In the information age, the high speed along with network popularizes the develop rapidly with multimedia technology, and the demand of user to high speed data transfer is growing.Radio communication, as a kind of communication technology of with fastest developing speed, most widely used, convenient and efficient, is applied in many broadcast communication services.But because Communications Market is very fierce to the competition of wireless communication spectrum resource, obtainable frequency spectrum resource is extremely rare, transfer of data reliably is realized at a high speed and just become very difficult.
In recent years, the research of some emerging communication technologys, development and application obtain and pay close attention to widely.Power line communication is exactly that a kind of existing power transmission line or distribution wire of utilizing realizes the emerging communication mode of transfer of data as transmission signal vector.It has without the need to advantages such as wiring, cost-saving, wide coverage, access are convenient, can be applicable to many aspects such as automatic data logging, intelligent appliance, large-capacity data transmission.Along with the maturation of power line topology, various standardization body and some relevant enterprises also start the standard actively setting about formulating power line communication, at present, some has the power line communication standard of significantly affecting power, as G3-PLC, PRIME, IEEEStd1901-2010, G.hn etc.But due to power line channel inclement condition, disturbance type is various, be suitable for the frequency spectrum resource carrying out data communication also comparatively limited.If the message transmission rate that service needed is very high, power line communication is only adopted also not reach the demand of business.
Along with technology is constantly reformed, various different transmission means is all by integrated, and Communications Market will towards the trend development of many net fusions.When only adopting power line communication or only adopt radio communication all not reach service data transmission rate requirement, power line communication and radio communication can be adopted to combine and to realize high-rate service transmission; At present, a kind of joint transmission method based on power line communication and radio communication is not also had in conventional art.
Summary of the invention
Technical problem to be solved by this invention is: propose a kind of joint transmission method based on power line communication and radio communication, solves in conventional art and only relies on power line communication or radio communication can not meet the problem of the demand of high speed data transfer.
The scheme that the present invention solves the problems of the technologies described above employing is: based on the joint transmission method of power line communication and radio communication, comprise: business datum waiting for transmission is split into power line communication data to be transmitted and wireless communication data to be transmitted, transmit respectively by power line channel and wireless channel; After receiving power line communication data and wireless communication data by corresponding receiving terminal, these two kinds of data are merged into business datum.
Further, the method specifically comprises the following steps:
A. according to relevant information, business datum waiting for transmission is split into power line communication data to be transmitted and wireless communication data to be transmitted, submit to power line communication transmitting terminal and radio communication transmitting terminal respectively;
B. power line communication transmitting terminal is treated transferring electric power line communication data and is carried out respective handling, forms electric-power wire communication signal, and transmits in this signal coupling to power line; Radio communication transmitting terminal is treated transmit wireless communication data and is carried out respective handling, forms wireless communication signals, and is transmitted in wireless channel in the form of an electromagnetic wave by this signal and transmits;
C. power line communication receiving terminal receives electric-power wire communication signal, and carries out respective handling to it, obtains power line communication data; Wireless communication receiver termination receives wireless communication signals, and carries out respective handling to it, obtains wireless communication data;
D. described power line communication data and described wireless communication data are merged, be reduced to business datum.
Further, in step a, described relevant information comprises: transmission mode, signal transmission form that the system parameters of power communication system and wireless communication system, the information of business datum and data adopt in power line channel and wireless channel.
Concrete, described transmission mode comprises error correction coding mode, interleaving mode, constellation mapping mode, modulation system, framing mode.
Concrete, the system parameters of described power communication system and wireless communication system comprises: the communication standard of channel width, employing.
Concrete, the information of described business datum comprises: the transmission rate request of business, transmission reliability requirement, requirement of real-time, mobility.
Further, in step a, business datum waiting for transmission is shunted in units of IP bag.
Further, in step b, described power line communication transmitting terminal is treated transferring electric power line communication data and is carried out respective handling, comprising: coded modulation, framing, AFE (analog front end) process etc.; Described radio communication transmitting terminal is treated transmit wireless communication data and is carried out respective handling, comprising: coded modulation, framing, AFE (analog front end) process etc.
Further, in step c, described power line communication receiving terminal receives electric-power wire communication signal, and carries out respective handling to it, comprising: AFE (analog front end) process, synchronous, demodulating and decoding etc.; Described wireless communication receiver termination receives wireless communication signals, and carries out respective handling to it, comprising: AFE (analog front end) process, synchronous, demodulating and decoding etc.
Further, the communication standard that described power communication system adopts be following any one: G.hn, IEEEStd1901-2010, PRIME, G3-PLC.
Further, the communication standard that described wireless communication system adopts be following any one: WiFi (802.11a/b/g/n), UWB
The invention has the beneficial effects as follows: power line channel and wireless channel point flow transmission are adopted to business datum, meets the demand of high speed data transfer.
Accompanying drawing explanation
Fig. 1 is the joint transmission method flow chart based on power line communication and radio communication of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is further described.
As shown in Figure 1, the joint transmission method based on power line communication and radio communication in the present invention, comprises the following steps:
A. according to relevant information, business datum waiting for transmission is split into power line communication data to be transmitted and wireless communication data to be transmitted, submit to power line communication transmitting terminal and radio communication transmitting terminal respectively; Relevant information described here comprises: transmission mode, signal transmission form that the system parameters of power communication system and wireless communication system, the information of business datum and data adopt in power line channel and wireless channel.Wherein, described transmission mode comprises error correction coding mode, interleaving mode, constellation mapping mode, modulation system, framing mode; The system parameters of described power communication system and wireless communication system comprises: the communication standard of channel width, employing; The information of described business datum comprises: the transmission rate request of business, transmission reliability requirement, requirement of real-time, mobility; Communication standard for electric line communication system includes but not limited to G.hn, IEEEStd1901-2010, PRIME, G3-PLC.Communication standard for wireless communication system includes but not limited to WiFi (802.11a/b/g/n), UWB etc.;
B. power line communication transmitting terminal is treated transferring electric power line communication data and is carried out respective handling (comprising: coded modulation, framing, AFE (analog front end) process etc.), forms electric-power wire communication signal, and will transmit in this signal coupling to power line; Radio communication transmitting terminal is treated transmit wireless communication data and is carried out respective handling (comprising: coded modulation, framing, AFE (analog front end) process etc.), forms wireless communication signals, and is transmitted in the form of an electromagnetic wave in wireless channel by this signal and transmits;
C. power line communication receiving terminal receives electric-power wire communication signal, and carries out respective handling (comprising AFE (analog front end) process, synchronous, demodulating and decoding etc.) to it, obtains power line communication data; Wireless communication receiver termination receives wireless communication signals, and carries out respective handling (comprising AFE (analog front end) process, synchronous, demodulating and decoding etc.) to it, obtains wireless communication data;
D. described power line communication data and described wireless communication data are merged, be reduced to business datum.
Embodiment one
The present embodiment provides the application of joint transmission method in faced chamber in Large Copacity multi-media transmission system based on power line communication and radio communication that the present invention proposes, and requirement provides the high speed data transfers up to 500Mbps.Details are as follows for involved method flow and transmission mode:
S1, according to system parameters and business information, determine the transmission mode that business adopts in power line communication and radio communication and signal transmission form, obtain power line communication data to be transmitted and wireless communication data to be transmitted;
Power line communication adopts G.hn standard, and channel width is 100MHz, adopts 1/2 code rate LDPC code as error correction coding, and 64QAM, as constellation mapping mode, supports the message transmission rate of 300Mbps; Radio communication adopts IEEE802.11n standard, and channel width is 50MHz, adopts 1/2 code rate LDPC code as error correction coding, and 256QAM, as constellation mapping mode, supports the message transmission rate of 200Mbps.Wrapped by the IP of business datum to be transmitted 2/5 is divided into power line communication data to be transmitted, and other are wireless communication data to be transmitted.
S2, power line communication transmitting terminal are treated transferring electric power line communication data according to transmission mode and are carried out coded modulation, framing, AFE (analog front end) process etc., are transmitted, are coupled in power circuit and transmit; Radio communication transmitting terminal is treated transmit wireless communication data according to transmission mode and is carried out coded modulation, framing, AFE (analog front end) process etc., is transmitted, is transmitted in wireless channel transmits with electromagnetic wave;
S3, power line communication receiving terminal receive the signal of telecommunication, through AFE (analog front end) process, synchronous, demodulating and decoding etc., obtain transferring electric power line communication data; Wireless communication receiver termination receives wireless signal, through AFE (analog front end) process, synchronous, demodulating and decoding etc., obtains transmit wireless communication data;
S4, transferring electric power line communication data and transmit wireless communication data to be merged, obtain transmitting business signal.
In the transmission system that the present embodiment provides, calculating overall transmission rate is R=500Mbps, can realize the demand of multimedia transmission.
Embodiment two
The present embodiment provides the application of joint transmission method in wide band multi-business digital communication based on power line communication and radio communication that the present invention proposes, and requirement provides the high speed data transfers of 80Mbps.Details are as follows for involved method flow and transmission mode:
S1, according to system parameters and business information, determine the transmission mode that business adopts in power line communication and radio communication and signal transmission form, obtain power line communication data to be transmitted and wireless communication data to be transmitted;
Power line communication adopts IEEEStd1901-2010 standard, and channel width is 28MHz, adopts 2/3 code rate LDPC code as error correction coding, and 64QAM, as constellation mapping mode, supports the message transmission rate of 112Mbps; Radio communication adopts IEEE802.11b standard, and channel width is 20MHz, adopts 1/2 code rate LDPC code as error correction coding, and 256QAM, as constellation mapping mode, supports the message transmission rate of 80Mbps.Due to the conflicting of other business, wireless channel only can be used at moment A, unavailable in other moment.Therefore, in moment A, the IP of business datum to be transmitted bag is all assigned as wireless communication data to be transmitted; In other moment, the IP of business datum to be transmitted bag is all assigned as power line communication data to be transmitted.
S2, power line communication transmitting terminal are treated transferring electric power line communication data according to transmission mode and are carried out coded modulation, framing, AFE (analog front end) process etc., are transmitted, are coupled in power circuit and transmit; Radio communication transmitting terminal is treated transmit wireless communication data according to transmission mode and is carried out coded modulation, framing, AFE (analog front end) process etc., is transmitted, is transmitted in wireless channel transmits with electromagnetic wave;
S3, power line communication receiving terminal receive the signal of telecommunication, through AFE (analog front end) process, synchronous, demodulating and decoding etc., obtain transferring electric power line communication data; Wireless communication receiver termination receives wireless signal, through AFE (analog front end) process, synchronous, demodulating and decoding etc., obtains transmit wireless communication data;
S4, transferring electric power line communication data and transmit wireless communication data to be merged, obtain transmitting business signal.
In the transmission system that the present embodiment provides, calculating overall transmission rate is R=100Mbps, can realize the demand of wide band multi-business digital communication.
It should be noted that, the scheme of application claims protection comprises but is not limited only to above-described embodiment, and those skilled in the art are according to being described in equivalent modifications/replacement of making above embodiment under Spirit Essence of the present invention above all in protection scope of the present invention.
Claims (8)
1. based on the joint transmission method of power line communication and radio communication, it is characterized in that, comprise: according to relevant information, business datum waiting for transmission is split into power line communication data to be transmitted and wireless communication data to be transmitted, submit to power line communication transmitting terminal and radio communication transmitting terminal respectively; After receiving power line communication data and wireless communication data by corresponding receiving terminal, these two kinds of data are merged into business datum; Described relevant information comprises: transmission mode, signal transmission form that the system parameters of power communication system and wireless communication system, the information of business datum and data adopt in power line channel and wireless channel.
2., as claimed in claim 1 based on the joint transmission method of power line communication and radio communication, it is characterized in that, the method specifically comprises the following steps:
A. power line communication transmitting terminal is treated transferring electric power line communication data and is carried out respective handling, forms electric-power wire communication signal, and transmits in this signal coupling to power line; Radio communication transmitting terminal is treated transmit wireless communication data and is carried out respective handling, forms wireless communication signals, and is transmitted in wireless channel in the form of an electromagnetic wave by this signal and transmits;
B. power line communication receiving terminal receives electric-power wire communication signal, and carries out respective handling to it, obtains power line communication data; Wireless communication receiver termination receives wireless communication signals, and carries out respective handling to it, obtains wireless communication data;
C. described power line communication data and described wireless communication data are merged, be reduced to business datum.
3., as claimed in claim 1 based on the joint transmission method of power line communication and radio communication, it is characterized in that, described transmission mode comprises error correction coding mode, interleaving mode, constellation mapping mode, modulation system, framing mode.
4., as claimed in claim 1 based on the joint transmission method of power line communication and radio communication, it is characterized in that, the system parameters of described power communication system and wireless communication system comprises: the communication standard of channel width, employing.
5., as claimed in claim 1 based on the joint transmission method of power line communication and radio communication, it is characterized in that, the information of described business datum comprises: the transmission rate request of business, transmission reliability requirement, requirement of real-time, mobility.
6. as claimed in claim 2 based on the joint transmission method of power line communication and radio communication, it is characterized in that, in step a, described power line communication transmitting terminal is treated transferring electric power line communication data and is carried out respective handling, comprising: coded modulation, framing, AFE (analog front end) process; Described radio communication transmitting terminal is treated transmit wireless communication data and is carried out respective handling, comprising: coded modulation, framing, AFE (analog front end) process.
7. as claimed in claim 2 based on the joint transmission method of power line communication and radio communication, it is characterized in that, in step b, described power line communication receiving terminal receives electric-power wire communication signal, and respective handling is carried out to it, comprising: AFE (analog front end) process, synchronous, demodulating and decoding; Described wireless communication receiver termination receives wireless communication signals, and carries out respective handling to it, comprising: AFE (analog front end) process, synchronous, demodulating and decoding.
8. the joint transmission method based on power line communication and radio communication as described in claim 2-7 any one, is characterized in that, business datum waiting for transmission is shunted in units of IP bag.
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| CN103413012B (en) * | 2013-08-30 | 2016-04-06 | 国网能源研究院 | Based on synchronisation control means and the device of electric system and communication system combined simulation |
| CN110429989B (en) * | 2019-07-22 | 2021-04-23 | 清华大学 | Interference suppression and coexistence method and device between communication systems |
| CN111181956A (en) * | 2019-12-27 | 2020-05-19 | 南京国电南自电网自动化有限公司 | Wireless multi-service data encryption system and method applied to relay protection device |
| CN113556165A (en) * | 2021-07-21 | 2021-10-26 | 深圳市国电科技通信有限公司 | Signal transmission method, receiver, transmitter, and communication device |
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| CN102761350A (en) * | 2012-07-19 | 2012-10-31 | 清华大学 | Power line and wireless mixed communication method and device thereof |
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