CN109525305A - Communication means, communication system and communication equipment based on LoRa technology - Google Patents
Communication means, communication system and communication equipment based on LoRa technology Download PDFInfo
- Publication number
- CN109525305A CN109525305A CN201910012957.0A CN201910012957A CN109525305A CN 109525305 A CN109525305 A CN 109525305A CN 201910012957 A CN201910012957 A CN 201910012957A CN 109525305 A CN109525305 A CN 109525305A
- Authority
- CN
- China
- Prior art keywords
- communication
- server
- request
- equipment
- way
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18558—Arrangements for managing communications, i.e. for setting up, maintaining or releasing a call between stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A kind of communication means based on LoRa technology, communication system and communication equipment proposed by the present invention, wherein, a kind of communication means based on LoRa technology is applied to the caller device with LoRa module, it include: to send communication request to called equipment by way of satellite communication and via server, communication request includes to be used to search and call the information of called equipment by server；Request response, the echo message from called equipment to communication request that request response bag is received and transmitted containing server are received by way of satellite communication；It is responded based on request, is established and communicated to connect via server and called equipment by way of satellite communication.It is combined by communication technology of satellite with LoRa technology, given full play to the low-power consumption of LoRa technology, high-performance, it is remote, anti-interference the advantages that, the reliability that ensure that overall network communications, solves remote districts or communication network signal is bad and influence the communication issue of LoRa equipment when geological disaster occurs.
Description
Technical field
The present invention relates to field of communication technology, a kind of communication means based on LoRa technology, communication are especially related to
System and communication equipment.
Background technique
LoRa (LoRa Wide Area Network, low-power consumption wide area network) technology has low-power consumption, low cost, Gao Xing
Can, it is remote and anti-interference the advantages that, compared with other transmission modes, this kind of technology can be under same consumption conditions letter
It number propagates farther, realizes low-power consumption and unified at a distance, have great application prospect.But the biography of this kind of technical application
Defeated network there are problems that being influenced by geographical, geological conditions.It such as, can not in many remote districts because being influenced by geographical conditions
Construction network connect system or apart from network connection system farther out, so that it cannot with 2G/3G/4G network or cable broadband
Carry out good network connection；Or in the case where geological disaster occurs, conventional wireless or cable network be easy by
It destroys.The application of Lora technology can be significantly influenced in this way.
In consideration of it, it is necessary to provide a kind of communication means, communication system and communication equipment, with solve remote districts or
Communication network signal is bad, cannot give full play to the problem of LoRa technical advantage when geological disaster occurs.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of communication means based on LoRa technology, is applied to have LoRa
The caller device of module, comprising:
Communication request is sent to called equipment by way of satellite communication and via server, and the communication request includes
It is used to search and call the information of the called equipment by the server；
Request response is received by way of satellite communication, the request response includes that the server is received and transmitted
From the called equipment to the echo message of the communication request；
It is responded based on the request, establishes and lead to via the server and the called equipment by way of satellite communication
Letter connection.
Further, described to send communication request to called equipment, institute by way of satellite communication and via server
State communication request include the step of being used to search and call the information of the called equipment by the server before, comprising:
The communicating number that the server is sent is received, the communicating number and communication device identification code pass through the service
Device establishes mapping relations, and the communicating number is used to find the communication equipment according to the communication device identification code；It is described logical
Letter request includes the communicating number of caller device and the communicating number of called equipment.
Further, described to send communication request to called equipment, institute by way of satellite communication and via server
State communication request include the step of being used to search and call the information of the called equipment by the server before, comprising:
Set communication operational mode.
Further, the step of setting communication operational mode, comprising:
Current mode is sent to server by way of satellite communication；
Receive the confirmation message that the server is returned by way of satellite communication；
The operation mode is established according to the confirmation message.
Further, before the step of setting communication operational mode, comprising:
Execute screening process.
Further, the step of execution screening process, comprising:
The information that network is added in request is sent to server by way of satellite communication；
It receives the request that the server is passed back by way of satellite communication and response message is added, wherein the request
It is added in response message and is accompanied with device address information.
Further, it is responded described based on the request, is established by way of satellite communication with the called equipment
After the step of communication connection, comprising:
The request of communication close is sent to the server by way of satellite communication；
The response message that the server returns is received, the response message is the server according to the communication close
Request delete the response message that returns by way of satellite communication after intercommunication connection；
According to response message communication close port.
The present invention also proposes a kind of communication system based on LoRa technology, comprising:
Sending module, for sending communication request to called equipment, institute by way of satellite communication and via server
Stating communication request includes to be used to search and call the information of the called equipment by the server；
Receiving module, for receiving request response by way of satellite communication, the request response includes the service
The echo message from the called equipment to the communication request that device is received and transmitted；
Communication connection module, for being responded based on the request, by way of satellite communication via the server and
The called equipment establishes communication connection.
Further, the communication system based on LoRa technology further include:
Communicating number receiving module, the communicating number sent for receiving the server, the communicating number with communicate
Equipment mark code establishes mapping relations by the server, and the communicating number according to the communication device identification code for seeking
Look for the communication equipment；The communication request includes the communicating number of caller device and the communicating number of called equipment.
The present invention also proposes a kind of communication equipment based on LoRa technology, including memory and processor, the memory
It is stored with computer program, the step of processor realizes above-mentioned communication means when executing the computer program.
A kind of communication means based on LoRa technology, communication system and communication equipment proposed by the present invention, wherein Yi Zhongji
It is applied to the caller device with LoRa module in the communication means of LoRa technology, comprising: by way of satellite communication and warp
Communication request is sent to called equipment by server, communication request includes the letter for being used to search and call called equipment by server
Breath；Request response is received by way of satellite communication, what request response bag was received and transmitted containing server comes from called equipment
To the echo message of communication request；It is responded based on request, is established by way of satellite communication via server and called equipment
Communication connection.Information transmission and reception are carried out by way of satellite communication, are avoided because in remote districts or in geology calamity
Evil is located in that network signal is bad and the transmission and reception that influence LoRa equipment to signal, that is to say, that by satellite communication skill
Art is combined with LoRa technology, given full play to the low-power consumption of LoRa technology, high-performance, it is remote, anti-interference the advantages that, guarantee
The reliabilities of overall network communications, solves remote districts or communication network signal is bad when geological disaster occurs
And influence the communication issue of LoRa equipment.
Detailed description of the invention
Fig. 1 is the communication means steps flow chart schematic diagram of one embodiment of the invention；
Fig. 2 is the communication system module block schematic illustration of one embodiment of the invention；
Fig. 3 is the communication system module block schematic illustration of another embodiment of the present invention；
Fig. 4 is the communication system module block schematic illustration of third embodiment of the invention；
Fig. 5 is the mode setting module block schematic illustration in the communication system of third embodiment of the invention；
Fig. 6 is the communication system module block schematic illustration of fourth embodiment of the invention；
Fig. 7 is the screening module frame schematic diagram in the communication system of fourth embodiment of the invention；
Fig. 8 is the communication system module block schematic illustration of fifth embodiment of the invention；
Fig. 9 is the structural schematic diagram of communication equipment in one embodiment of the invention；
Figure 10 is the structural schematic diagram of storage medium in one embodiment of the invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.
As shown in Figure 1, proposing a kind of communication means based on LoRa technology in one embodiment of the invention, it is applied to tool
There is the caller device of LoRa module, comprising:
S1: communication request is sent to called equipment by way of satellite communication and via server, communication request includes
It is used to search and call the information of called equipment by server；
S2: receiving request response by way of satellite communication, and what request response bag was received and transmitted containing server comes from
Echo message of the called equipment to communication request；
S3: it based on request response, is established and is communicated to connect via server and called equipment by way of satellite communication.
In the present embodiment, the corresponding network system of the communication means mainly includes caller device, server, called sets
It is standby.Wherein, caller device can be an individual device, or the combination of several devices, called equipment are also such.
It will be combination the case where progress using several devices to caller device and called equipment below to preferably be illustrated
It is described in detail, it is emphasized that, the case where other are not described in detail, is also in the protection scope of this programme.
Specifically, caller device includes the dress such as caller device terminal, the corresponding gateway of caller device in present embodiment
It sets, being called equipment includes the called devices such as device end and the corresponding gateway of called equipment.Server is used for according to caller device
The information of terminal and the information of called device end establish communication data channel, and carry out the routing and distribution of data.It should
Network system is based on LoRa technology and realizes communication.The communications device terminal of local terminal is known as caller device terminal, it is corresponding logical
Signal code is known as calling number, is known as called device end to the communications device terminal of square end, corresponding number is known as called
Number.
The communication means can be applied to the equipment such as intercom, not enumerate herein, wherein " caller ", " called " are
Opposite, an only address using with understanding for ease of description, for example, in some cases, " caller device " can also be at
For " called equipment ", " called equipment " can also become " caller device ".
In above-mentioned steps S1, after caller device terminal receives the called number of user's input, caller device terminal will lead to
Letter request is sent to the corresponding gateway of caller device, and the equipment mark of calling number, caller device terminal is carried in this communication request
The information such as knowledge code (DevEUI), the device address (DevAddr) of caller device terminal and called number；Gateway is logical by satellite
The communication request is forwarded to server by letter mode；Server is after the communication request for receiving caller device terminal, according to quilt
It cries number searching its corresponding equipment mark code (DevEUI), corresponding device address is searched according to equipment mark code
(DevAddr) information, to determine the address of called device end according to device address, and by satellite communication to quilt such as
It makes the gateway at device end corresponding address to send communication request, calling number is carried in this message, caller device terminal is set
The information such as the device address (DevAddr) of standby address (DevAddr) and called number, called device end.Called equipment is whole
Gateway at the corresponding address of end forwards the communication request to called terminal by LoRa wireless network or cable network.In this implementation
In mode, between caller device terminal and corresponding gateway, distance is shorter, it is possible to rely on the wireless network of LoRa system
Or cable network carries out signal transmission, and the distance between gateway and server are farther out, are passed by means of communication technology of satellite
Defeated (the problem of avoiding the poor signal of original 2G/3G/4G network or cable broadband).Called device end is called
Signal transmission between the corresponding gateway of device end and server is also in this way, being not repeated herein.
In above-mentioned steps S2, caller device receives the called equipment passed back from server via the mode of satellite communication
Response message.Specifically, after called device end receives communication request message, calling number, caller device address are saved
(DevAddr) information such as, and response message is replied to the corresponding gateway of called device end, it is called the corresponding gateway of device end
The communication response message is forwarded to server by satellite communication.At this point, server establishes calling number, caller device end
The device address (DevAddr) at end, called number, called device end the corresponding relationships such as device address (DevAddr), establish
The channel of communication.Server also passes through satellite communication and disappears to the corresponding gateway transmission communication request response of caller device
Breath, the corresponding gateway of caller device are asked by way of LoRa wireless network or cable network to the forwarding communication of caller device terminal
Seek response message.
In above-mentioned steps S3, receive request response after, caller device by way of satellite communication via server with
Called equipment establishes communication connection, and user can communicate at this time.Specifically, being when caller device terminal in the present embodiment
After receiving request response, which is established.
In the present embodiment, by the application of LoRa technology, and information transmission is carried out by way of satellite communication, sufficiently send out
Wave the low-power consumption of LoRa technology, high-performance, it is remote, anti-interference the advantages that while, guarantee overall network communications can
By property, solves the problems, such as remote districts or communication network signal is bad when geological disaster occurs.
In one embodiment, communication request is sent to called equipment by way of satellite communication and via server, lead to
Letter request is used to search and call before the step S1 of information of called equipment comprising bedding and clothing business device, comprising:
S01: the communicating number that server is sent is received.
Wherein, communicating number establishes mapping relations by server with communication device identification code, and communicating number is used for basis
Communication device identification code finds communication equipment；Communication request includes the communicating number of caller device and the messenger of called equipment
Code.
In above-mentioned steps S01, when being transmitted using LoRa network technology combination satellite communication, DevEUI is
LoRa server (i.e. LoRa system) is the globally unique equipment mark code of equipment distribution, that is to say, that a particular device
Possess a globally unique equipment mark code, equipment mark code and communicating number correspond, in this way, can be according to messenger
Code finds equipment mark code, therefore, need to distribute communicating number in a communications system in advance before using equipment for equipment.
It is noted that communicating number and equipment mark code are distributed by server (namely LoRa system), this
The allocation order at place and time are not limited, as long as will not influence the communication of two method, apparatus i.e. when being communicated using equipment
It can.In addition, having one-to-one mapping relations between communicating number and equipment mark code, the settling time of the mapping be can be
After the screening process (about screening process, behind will be described) of equipment, it is also possible to (the phase before the screening process of equipment
Established when in prior), herein with no restrictions, as long as not influencing the communication of two method, apparatus yet.It will be introduced one by one below.
In some embodiments, communicating number and equipment mark code (DevEUI) are previously stored in the server, messenger
Code establishes mapping relations by server with equipment mark code (DevEUI).Communication request initiation before, caller device and by
A communicating number for making equipment receive server distribution respectively, in this way, in subsequent steps, server is according to communicating number
With the mapping relations of equipment mark code (DevEUI), the equipment mark code (DevEUI) of equipment, and root are searched by communicating number
Device address information is searched according to equipment mark code (DevEUI), to obtain the position where caller and called number equipment.
In further embodiments, after screening process, communications device terminal oneself reports the communication of oneself to server
Number and equipment mark code (DevEUI), communicating number establish mapping relations by server with equipment mark code (DevEUI).
Server searches the equipment mark of equipment by communicating number according to the mapping relations of communicating number and equipment mark code (DevEUI)
Know code (DevEUI), and device address information is searched according to equipment mark code (DevEUI), to obtain caller and called number
Position where equipment.
In one embodiment, communication request is sent to called equipment by way of satellite communication and via server, lead to
Letter request is used to search and call before the step S1 of information of called equipment comprising bedding and clothing business device, comprising:
S02: setting communication operational mode.
In above-mentioned steps S02, according to different selections, device end will be different by LoRa wireless network or cable network
Command request be sent to gateway, gateway is notified to the operation mould of the device end by way of satellite communication to server again
Formula, server after receiving command request by receive request when communication path backtracking send confirmation message to device end,
Device end receives confirmation message, confirmation operation mode.
The communication operational mode of LoRa communication system includes Class A, Class B and Class C mode, Class A mould
Formula is least in power-consuming, and Class C mode time delay is minimum, and can be then with the real-time reception communication information, Class B-mode between
Between Class A and Class C mode, according to different application scenarios, different communication operational modes is set, device end is made
In different operating modes, communications is made to play maximum effect, it is flexible and changeable.
Below under Class A, Class B and Class C mode, the working condition of device end is carried out specifically
It is bright:
Under Class mode A, device end is transmitted in both directions terminal, and terminal can all closely follow two after each uplink at this time
Of short duration downlink reception window, realizes transmitted in both directions with this.Transmission time slot is to be arranged by terminal when there is transmission to need, and adds one
Fixed random delay (i.e. ALOHA agreement).This operation mode is most power saving, it is desirable that after transmitting using row at the terminal very
The downlink transfer of server is carried out in short time.Downlink transfers that server is carried out any time at other all etc. under terminals
Uplink.
Under Class B-mode, device end is to delimit the transmitted in both directions terminal for receiving time slot, at this point, terminal has more
Reception time slot.In addition to the random reception window of Class A, the equipment under Class B-mode can also be opened at the appointed time not
Reception window.In order to allow terminal that can at the appointed time open reception window, terminal needs synchronous from gateway receiving time
Beacon Beacon.This makes server be known that device end is being monitored.
Under Class C mode, device end is to maximize the transmitted in both directions terminal for receiving time slot, at this point, device end base
Originally it is always on reception window, is only momentarily closed when sending.Under Class C mode, terminal is handed down to from server
Time delay is shortest.
In one embodiment, the step S02 of communication operational mode is set:, comprising:
S021: current mode is sent to server by way of satellite communication；
S022: the confirmation message that server is returned by way of satellite communication is received；
S023: operation mode is established according to confirmation message and server.
In step S021, current mode is sent to pair by device end by LoRa wireless network or cable network
The gateway answered, then it is notified to oneself current operation mode to server by way of satellite communication through gateway.
In step S022, server sends by way of satellite communication confirmation message to asking after receiving notification request
The corresponding gateway of device end is sought, the corresponding gateway of device end forwards confirmation message to equipment end by LoRa wireless network
End, confirms the selected operation mode of device end.
In step S023, communications device terminal receives confirmation message, and confirmation operation mode, communications device terminal has at this time
For the condition communicated with opposite end communications device terminal transmitting message.
In some embodiments, operation mode is set as Class C mode, then in step S021, the operation of transmission
Mode connection identifier (CID (CID) order is 0x20.Class C mode has time delay minimum, and can be with the real-time reception communication information
The advantages of.In other embodiments, the mode of Class A and Class B also be can choose.
In one embodiment, before setting the step S02 of communication operational mode, comprising:
S03: screening process is executed.
By executing screening process, communication equipment is added in the network of communication system, in this way, communication system can allow
Include the information such as network address, the device address of communication equipment.It is noted that being somebody's turn to do " screening process " further includes most starting
" activation process ".
In one embodiment, the step S03 of screening process is executed, comprising:
S031: the information that network is added in request is sent to server by way of satellite communication；
S031: it receives the request that server is passed back by way of satellite communication and response message is added, wherein request is added
Device address information is accompanied in response message.
In the above-mentioned steps S031 of present embodiment, device end is corresponded to by LoRa wireless network or cable network to it
Gateway send be added network request message, the corresponding gateway of device end is by way of satellite communication by the request message
It is sent to server, includes the networking license request (JoinEUI) and equipment mark code of device end in request message
(DevEUI) information such as.
In above-mentioned steps S032, server is after the request for receiving device end transmission, by way of satellite communication
The message back that will have agreed to be added network gives device end corresponding gateway, and it is wireless that the corresponding gateway of device end passes through LoRa again
Network or finite element network reverting equipment terminal, reply message in include network address (Home NetID), device address
(DevAddr) information such as.Device end receive server transmission return information after, according to the information in replying message into
The setting of row corresponding network address (Home NetID) and device address (DevAddr) are completed to network.
In some embodiments, based on request response, communication link is established with called equipment by way of satellite communication
After the step S3 connect, comprising:
S4: the request of communication close is sent to server by way of satellite communication；
S5: receiving the response message that server returns, and response message is that server is double according to the request of communication close deletion
The response message returned by way of satellite communication after side's communication connection；
S6: information communication close port according to response.
In above-mentioned steps S4, either party in communicating pair can initiate communication close at any time in communication process
Request；Server is after receiving communication close request, and deletion caller is called and the corresponding informances such as device address, discharges resource.
In above-mentioned steps S5, after receiving communication close request, what is also requested to initiation communication close sets server
Standby terminal replies communication close response message, while communication close message is sent to another party's device end.Last gateway forwards
The message that server is sent is closed to corresponding device end, entire communication.
In above-mentioned steps S6, communications device terminal is after the response message for receiving server return, communication close
Connection stops entire communication.
In conclusion propose a kind of communication means based on LoRa technology in the embodiment of the present invention, applied to having
The equipment of LoRa module, comprising: S1: sending communication request to called equipment by way of satellite communication and via server,
Communication request includes to be used to search and call the information of called equipment by server；S2: it is received and is asked by way of satellite communication
Ask response, the echo message from called equipment to communication request that request response bag is received and transmitted containing server；S3: it is based on
Request response is established via server and called equipment by way of satellite communication and is communicated to connect.Pass through the side of satellite communication
Formula carries out information transmission and reception, avoid because remote districts or geological disaster be located in network signal it is bad, due to
Influence transmission and reception of the LoRa equipment to signal, that is to say, that communication technology of satellite is combined with LoRa technology, is sufficiently sent out
Waved the low-power consumption of LoRa technology, high-performance, it is remote, anti-interference the advantages that, ensure that the reliable of overall network communications
Property, it solves remote districts or communication network signal is bad and influence the communication of LoRa equipment and ask when geological disaster occurs
Topic.
As shown in Fig. 2, also proposed a kind of communication system based on LoRa technology in the embodiment of the present invention, comprising:
Sending module 10, for sending communication request to called equipment by way of satellite communication and via server,
Communication request includes to be used to search and call the information of called equipment by server；
Receiving module 20, for receiving request response by way of satellite communication, request response bag is received containing server
And transmit from called equipment to the echo message of communication request；
Communication connection module 30 is built by way of satellite communication via server and called equipment based on request response
Vertical communication connection.
It mainly include caller device, server, called equipment in the communication system.Wherein, caller device can be one
A individual device, or the combination of several devices, called equipment are also such.In the present embodiment, caller device
It is the combination using several devices with called equipment, in order to preferably be illustrated, this kind of situation will be carried out below detailed
Explanation, it should be noted that the case where other are not described in detail is also in the protection scope of this programme.
Specifically, in present embodiment, caller device includes the dress such as caller device terminal, the corresponding gateway of caller device
It sets, being called equipment includes the called devices such as device end and the corresponding gateway of called equipment.Server is used for according to caller device
The information of terminal and the information of called device end establish communication data channel, and carry out the routing and distribution of data.It should
Network system is based on LoRa technology and realizes communication.The communications device terminal of local terminal is known as calling terminal, corresponding messenger
Code is known as calling number, is known as called device end to the communications device terminal of square end, corresponding number is known as called number.
The communication system can be applied to the equipment such as intercom, not enumerate herein, wherein " caller ", " called " are
Opposite, an only address using with understanding for ease of description, for example, in some cases, " caller device " can also be at
For " called equipment ", " called equipment " can also become " caller device ".
Pass through above-mentioned sending module 10, after caller device terminal receives the called number of user's input, caller device terminal
Communication request is sent to the corresponding gateway of caller device, calling number is carried in this communication request, caller device terminal is set
The information such as standby identification code (DevEUI), the device address (DevAddr) of caller device terminal and called number；Gateway is by defending
The communication request is forwarded to server by star communication mode；Server is after the communication request for receiving caller device terminal, root
Its corresponding equipment mark code (DevEUI) is searched according to called number, corresponding device address is searched according to equipment mark code
(DevAddr) information, to determine the address of called device end according to device address, and by satellite communication to quilt such as
It makes the gateway at device end corresponding address to send communication request, calling number is carried in this message, caller device terminal is set
The information such as the device address (DevAddr) of standby address (DevAddr) and called number, called device end.Called equipment is whole
Gateway at the corresponding address of end forwards the communication request to called terminal by LoRa wireless network or cable network.In this implementation
In mode, between caller device terminal and corresponding gateway, distance is shorter, it is possible to rely on the wireless network of LoRa system
Or cable network carries out signal transmission, and the distance between gateway and server are farther out, are passed by means of communication technology of satellite
Defeated (the problem of avoiding the poor signal of original 2G/3G/4G network or cable broadband).Called device end is called
Signal transmission between the corresponding gateway of device end and server is also in this way, being not repeated herein.
By above-mentioned receiving module 20, caller device receives the quilt passed back from server via the mode of satellite communication
It is the response message of equipment.Specifically, after called device end receives communication request message, calling number is saved, caller is set
Information such as standby address (DevAddr), and response message is replied to the corresponding gateway of called device end, it is corresponding to be called device end
Gateway the communication response message is forwarded to server by satellite communication.At this point, server establishes calling number, caller
The device address (DevAddr) of device end, called number, called device end device address (DevAddr) etc. corresponding close
System establishes the channel of communication.Server also passes through satellite communication asks to the corresponding gateway transmission communication of caller device
Response message is sought, the corresponding gateway of caller device is turned by way of LoRa wireless network or cable network to caller device terminal
Send out communication request response message.
By above-mentioned communication connection module 30, after receiving request response, caller device is passed through by way of satellite communication
It is established and is communicated to connect by server and called equipment, user can communicate at this time.Specifically, being as master in the present embodiment
After making device end receive request response, which is established.
Communication system in the present embodiment by the application of LoRa technology, and carries out information by way of satellite communication
Transmission, give full play to the low-power consumption of LoRa technology, high-performance, it is remote, anti-interference the advantages that while, guarantee that overall network is logical
The reliability for believing transmission, solves the problems, such as remote districts or communication network signal is bad when geological disaster occurs.
In one embodiment, as shown in figure 3, the communication system based on LoRa technology further include:
Number receiving module 40, for receiving the communicating number of server transmission, communicating number and communication device identification code
Mapping relations are established by server, communicating number is used to find communication equipment according to communication device identification code；Communication request packet
Include the communicating number of caller device and the communicating number of called equipment.
Pass through number receiving module 40, when being transmitted using LoRa network technology combination satellite communication, DevEUI
It is the globally unique equipment mark code that LoRa server (i.e. LoRa system) is equipment distribution, that is to say, that one specific to set
Standby to possess a globally unique equipment mark code, equipment mark code and communicating number correspond, in this way, can be according to communication
Number searching is to equipment mark code, therefore, need to distribute communicating number in a communications system in advance before using equipment for equipment.
It is noted that communicating number and equipment mark code are distributed by server (namely LoRa system), this
The allocation order at place and time are not limited, as long as will not influence the communication of two method, apparatus i.e. when being communicated using equipment
It can.In addition, having one-to-one mapping relations between communicating number and equipment mark code, the settling time of the mapping be can be
After the screening process (about screening process, behind will be described) of equipment, it is also possible to (the phase before the screening process of equipment
Established when in prior), herein with no restrictions, as long as not influencing the communication of two method, apparatus yet.
In some embodiments, communicating number and equipment mark code (DevEUI) are previously stored in the server, messenger
Code establishes mapping relations by server with equipment mark code (DevEUI).Communication request initiation before, caller device and by
A communicating number for making equipment receive server distribution respectively, in this way, in subsequent steps, server is according to communicating number
With the mapping relations of equipment mark code (DevEUI), the equipment mark code (DevEUI) of equipment, and root are searched by communicating number
Device address information is searched according to equipment mark code (DevEUI), to obtain the position where caller and called number equipment.
In further embodiments, after screening process, communications device terminal oneself reports the communication of oneself to server
Number and equipment mark code (DevEUI), communicating number establish mapping relations by server with equipment mark code (DevEUI).
Server searches the equipment mark of equipment by communicating number according to the mapping relations of communicating number and equipment mark code (DevEUI)
Know code (DevEUI), and device address information is searched according to equipment mark code (DevEUI), to obtain caller and called number
Position where equipment.
In one embodiment, as shown in figure 4, the communication system based on LoRa technology further include:
Mode setting module 50: for setting communication operational mode.
By mode setting module 50, according to different selections, device end passes through LoRa wireless network or cable network
Different command requests is sent to gateway, gateway is notified to the behaviour of the device end by way of satellite communication to server again
Operation mode, server are sending confirmation message to equipment end by communication path backtracking when receiving request after receiving command request
End, device end receive confirmation message, confirmation operation mode.
The communication operational mode of LoRa communication system includes Class A, Class B and Class C mode, Class A mould
Formula is least in power-consuming, and Class C mode time delay is minimum, and can be then with the real-time reception communication information, Class B-mode between
Between Class A and Class C mode, according to different application scenarios, different communication operational modes is set, communication equipment is made
Terminal is in different operating modes, and communications is made to play maximum effect, flexible and changeable.
In one embodiment, as shown in figure 5, mode setting module 50 includes:
First transmission unit 501, for current mode to be sent to server by way of satellite communication；
First receiving unit 502, the confirmation message returned by way of satellite communication for receiving server；
Mode confirmation unit 503, for establishing operation mode according to confirmation message and server.
By the first transmission unit 501, device end is by LoRa wireless network or cable network by current mode
It is sent to corresponding gateway, then is notified to oneself current operation mode to server by way of satellite communication through gateway.
By the first receiving unit 502, server sends confirmation after receiving notification request by way of satellite communication
Message gives request device end corresponding gateway, the corresponding gateway of device end by LoRa wireless network forward confirmation message to
Device end confirms the selected operation mode of device end.
By mode confirmation unit 503, communication equipment device end receives confirmation message, and confirmation operation mode communicates at this time
Device end has the condition communicated with opposite end communications device terminal transmitting message.
In some embodiments, operation mode is set as Class C mode, then, in step S021, the operation of transmission
Mode connection identifier (CID (CID) order is 0x20.Class C mode has time delay minimum, and can be with the real-time reception communication information
The advantages of.In other embodiments, the mode of Class A and Class B also be can choose.
In one embodiment, as shown in fig. 6, the communication system based on LoRa technology further include:
Screening module 60: for executing screening process.
By screening module, screening process is executed, communication equipment is added in the network of communication system, allows communication system
Include the information such as network address, the device address of communication equipment.
It in a specific embodiment, further include activation unit in screening module 60.
In one embodiment, as shown in fig. 7, screening module 60 includes:
Second transmission unit 601, for the information that network is added in request to be sent to service by way of satellite communication
Device；
Response letter is added for receiving the request that server is passed back by way of satellite communication in second receiving unit 602
Breath, wherein request is added in response message and is accompanied with device address information.
By the second transmission unit 601, device end passes through LoRa wireless network or cable network to its corresponding gateway
The request message that network is added is sent, which is sent to by the corresponding gateway of device end by way of satellite communication
Server includes the networking license request (JoinEUI) and equipment mark code (DevEUI) of device end in request message
Etc. information.
By the second receiving unit 602, server passes through satellite communication after the request for receiving device end transmission
The message back that mode will have agreed to be added network gives device end corresponding gateway, and the corresponding gateway of device end passes through LoRa again
Wireless network or finite element network reverting equipment terminal, reply message in include network address (Home NetID), device address
(DevAddr) information such as.Device end receive server transmission return information after, according to the information in replying message into
The setting of row corresponding network address (Home NetID) and device address (DevAddr) are completed to network.
In one embodiment, as shown in figure 8, the communication system based on LoRa technology further include:
Second sending module 70, for sending the request of communication close to server by way of satellite communication；
Second receiving module 80, for receiving the response message of server return, response message is server according to closing
The response message returned by way of satellite communication after intercommunication connection is deleted in the request of communication；
Closedown module 90, for information communication close port according to response.
By the second sending module 70, either party in communicating pair can initiate to close at any time in communication process
Communication request；Server is after receiving communication close request, and deletion caller is called and the corresponding informances such as device address, release money
Source.
By the second receiving module 80, server will also request after receiving communication close request to communication close is initiated
Device end reply communication close response message, while to another party's device end send communication close message.Last gateway
The message that forwarding server is sent is closed to corresponding device end, entire communication.
By closedown module 90, communications device terminal is after the response message for receiving server return, communication close
Connection stops entire communication.
Referring to Fig. 9, the communication equipment 1001 based on LoRa technology in one embodiment of the invention, including 1003 He of memory
Processor 1002, the memory 1003 are stored with computer program 1004, and the processor 1002 executes the computer journey
The step of above-mentioned communication means is realized when sequence 1004.
It will be understood by those skilled in the art that communication equipment 1001 of the present invention and above-mentioned involved for executing sheet
One or more equipment in method described in application.These equipment can specially design and manufacture for required purpose,
It or also may include known device in general purpose computer.These equipment have the computer program 1004 that is stored in it or
Application program, these computer programs 1004 are selectively activated or are reconstructed.Such computer program 1004 can be stored
In equipment (for example, computer) readable medium or it is stored in suitable for storage e-command and is coupled to any of bus respectively
In the medium of type, the computer-readable medium include but is not limited to any kind of disk (including floppy disk, hard disk, CD,
CD-ROM and magneto-optic disk), ROM (Read-Only Memory, read-only memory), RAM (Random Access Memory, with
Machine memory), EPROM (Erasable Programmable Read-Only Memory, the read-only storage of erasable programmable
Device), EEPROM (Electrically Erasable Programmable Read-Only Memory, electric erazable programmable only
Read memory), flash memory, magnetic card or light card.It is, readable medium includes by equipment (for example, computer) with energy
Any medium for the form storage or transmission information enough read.
Referring to Fig.1 0, a kind of computer readable storage medium 2001 is provided in one embodiment of the invention, is stored thereon with meter
The step of calculation machine program 2002, the computer program realizes above-mentioned communication means when being executed by processor.
Communication technology of satellite is combined with LoRa technology, has given full play to low-power consumption, the height of LoRa technology by the above method
Performance, it is remote, anti-interference the advantages that, ensure that the reliability of overall network communications, solve remote districts or
Communication network signal is bad and influence the communication issue of LoRa equipment when geological disaster occurs.
The present invention also provides a kind of computer program products comprising instruction, when run on a computer, so that
Computer executes communication means described in above embodiments.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.
The computer program product includes one or more computer instructions.Load and execute on computers the meter
When calculation machine program instruction, entirely or partly generate according to process or function described in the embodiment of the present application.The computer can
To be general purpose computer, special purpose computer, computer network or other programmable devices.The computer instruction can be deposited
Storage in a computer-readable storage medium, or from a computer readable storage medium to another computer readable storage medium
Transmission, for example, the computer instruction can pass through wired (example from a web-site, computer, server or data center
Such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave) mode to another website
Website, computer, server or data center are transmitted.The computer readable storage medium can be computer and can deposit
Any usable medium of storage either includes that the data storages such as one or more usable mediums integrated server, data center are set
It is standby.The usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or partly lead
Body medium (such as solid state hard disk Solid State Disk (SSD)) etc..
In conclusion proposing a kind of communication means based on LoRa technology, communication system and logical in the embodiment of the present invention
Believe equipment, wherein a kind of communication means based on LoRa technology, applied to the caller device with LoRa module, comprising: S1:
Communication request is sent to called equipment by way of satellite communication and via server, and communication request includes to be used to by server
Search and call the information of called equipment；S2: receiving request response by way of satellite communication, and request response bag contains server
The echo message from called equipment to communication request for receiving and transmitting；S3: based on request response, pass through the side of satellite communication
Formula is established via server and called equipment and is communicated to connect.Information transmission and reception are carried out by way of satellite communication, are avoided
Because remote districts or geological disaster be located in network signal it is bad, due to influence LoRa equipment to the transmission of signal and
It receives, that is to say, that communication technology of satellite is combined with LoRa technology, has given full play to low-power consumption, the Gao Xing of LoRa technology
Can, it is remote, anti-interference the advantages that, ensure that the reliability of overall network communications, solve remote districts or on ground
Communication network signal is bad and influence the communication issue of LoRa equipment when matter disaster occurs.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of communication means based on LoRa technology, applied to the caller device with LoRa module, which is characterized in that packet
It includes:
Communication request is sent to called equipment by way of satellite communication and via server, and the communication request includes by institute
State the information that server is used to search and call the called equipment；
Request response is received by way of satellite communication, the request response is received comprising the server and that transmits comes from
Echo message of the called equipment to the communication request；
It is responded based on the request, establishes communication link via the server and the called equipment by way of satellite communication
It connects.
2. the communication means according to claim 1 based on LoRa technology, which is characterized in that described by satellite communication
Mode simultaneously sends communication request to called equipment via server, and the communication request includes to be used to search simultaneously by the server
Before the step of calling the information of the called equipment, comprising:
The communicating number that the server is sent is received, the communicating number is built with communication device identification code by the server
Vertical mapping relations, the communicating number are used to find the communication equipment according to the communication device identification code；The communication is asked
Seek the communicating number of communicating number and called equipment including caller device.
3. the communication means according to claim 1 based on LoRa technology, which is characterized in that described by satellite communication
Mode simultaneously sends communication request to called equipment via server, and the communication request includes to be used to search simultaneously by the server
Before the step of calling the information of the called equipment, comprising:
Set communication operational mode.
4. the communication means according to claim 3 based on LoRa technology, which is characterized in that the setting traffic operation mould
The step of formula, comprising:
Current mode is sent to server by way of satellite communication；
Receive the confirmation message that the server is returned by way of satellite communication；
The operation mode is established according to the confirmation message.
5. the communication means according to claim 3 based on LoRa technology, which is characterized in that the setting traffic operation mould
Before the step of formula, comprising:
Execute screening process.
6. the communication means according to claim 5 based on LoRa technology, which is characterized in that the execution screening process
Step, comprising:
The information that network is added in request is sent to server by way of satellite communication；
It receives the request that the server is passed back by way of satellite communication and response message is added, wherein the request is added
Device address information is accompanied in response message.
7. the communication means according to claim 1 based on LoRa technology, which is characterized in that be based on the request described
Response is established after the step of communicating to connect by way of satellite communication with the called equipment, comprising:
The request of communication close is sent to the server by way of satellite communication；
The response message that the server returns is received, the response message is the server asking according to the communication close
Seek the response message deleted and returned by way of satellite communication after intercommunication connection；
According to response message communication close port.
8. a kind of communication system based on LoRa technology characterized by comprising
Sending module is described logical for sending communication request to called equipment by way of satellite communication and via server
Information of the letter request comprising being used to search and call the called equipment by the server；
Receiving module, for receiving request response by way of satellite communication, the request response connects comprising the server
The echo message from the called equipment to the communication request received and transmitted；
Communication connection module, for based on the request response, by way of satellite communication via the server with it is described
Called equipment establishes communication connection.
9. the communication system according to claim 8 based on LoRa technology, which is characterized in that the communication system is also wrapped
It includes:
Communicating number receiving module, the communicating number sent for receiving the server, the communicating number and communication equipment
Identification code establishes mapping relations by the server, and the communicating number is used to find institute according to the communication device identification code
State communication equipment；The communication request includes the communicating number of caller device and the communicating number of called equipment.
10. a kind of communication equipment based on LoRa technology, including memory and processor, the memory are stored with computer journey
Sequence, which is characterized in that realize that claim 1 to 7 is described in any item when the processor executes the computer program and be based on
The step of communication means of LoRa technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012957.0A CN109525305A (en) | 2019-01-07 | 2019-01-07 | Communication means, communication system and communication equipment based on LoRa technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910012957.0A CN109525305A (en) | 2019-01-07 | 2019-01-07 | Communication means, communication system and communication equipment based on LoRa technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109525305A true CN109525305A (en) | 2019-03-26 |
Family
ID=65798545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910012957.0A Pending CN109525305A (en) | 2019-01-07 | 2019-01-07 | Communication means, communication system and communication equipment based on LoRa technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109525305A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187365A (en) * | 2019-05-24 | 2019-08-30 | Oppo广东移动通信有限公司 | A kind of localization method, equipment and system |
| CN111148276A (en) * | 2020-01-13 | 2020-05-12 | 武汉慧联无限科技有限公司 | Communication method, device, base station and storage medium based on LoRa technology |
| CN112165353A (en) * | 2020-09-24 | 2021-01-01 | 天宸星通(深圳)科技有限公司 | Satellite Internet of things terminal network access authentication method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854596A (en) * | 2009-03-31 | 2010-10-06 | 华为技术有限公司 | Method and system for realizing communication, transfer server and terminal |
| CN103634041A (en) * | 2012-08-21 | 2014-03-12 | 北京盛安同力科技开发有限公司 | A session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof |
| CN104125005A (en) * | 2014-07-09 | 2014-10-29 | 深圳市邦彦信息技术有限公司 | Intelligent satellite communication system and method based on IP network and E1 network |
| CN104469027A (en) * | 2014-10-31 | 2015-03-25 | 百度在线网络技术（北京）有限公司 | Call processing method and device |
| CN106209211A (en) * | 2016-08-24 | 2016-12-07 | 江苏星宇芯联电子科技有限公司 | LoRa MANET communication system based on Beidou satellite communication |
| CN106714260A (en) * | 2016-12-12 | 2017-05-24 | 南京蓝思信息科技有限公司 | Positioning and communication system and method based on LORA |
| EP3208950A1 (en) * | 2016-02-19 | 2017-08-23 | Universite De Montpellier | Connected objects communication system |
| CN108593012A (en) * | 2018-07-19 | 2018-09-28 | 中国地质调查局水文地质环境地质调查中心 | The fast slowdown monitoring system of geological disaster |
| CN108933872A (en) * | 2018-07-05 | 2018-12-04 | 深圳市沃特沃德股份有限公司 | Method and device for supporting mobile phone networking and called based on satellite mobile communication hot spot |
| US20180359623A1 (en) * | 2017-06-12 | 2018-12-13 | Wisol Co., Ltd. | Wireless terminal and communication method of the wireless terminal |
-
2019
- 2019-01-07 CN CN201910012957.0A patent/CN109525305A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854596A (en) * | 2009-03-31 | 2010-10-06 | 华为技术有限公司 | Method and system for realizing communication, transfer server and terminal |
| CN103634041A (en) * | 2012-08-21 | 2014-03-12 | 北京盛安同力科技开发有限公司 | A session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof |
| CN104125005A (en) * | 2014-07-09 | 2014-10-29 | 深圳市邦彦信息技术有限公司 | Intelligent satellite communication system and method based on IP network and E1 network |
| CN104469027A (en) * | 2014-10-31 | 2015-03-25 | 百度在线网络技术（北京）有限公司 | Call processing method and device |
| EP3208950A1 (en) * | 2016-02-19 | 2017-08-23 | Universite De Montpellier | Connected objects communication system |
| CN106209211A (en) * | 2016-08-24 | 2016-12-07 | 江苏星宇芯联电子科技有限公司 | LoRa MANET communication system based on Beidou satellite communication |
| CN106714260A (en) * | 2016-12-12 | 2017-05-24 | 南京蓝思信息科技有限公司 | Positioning and communication system and method based on LORA |
| US20180359623A1 (en) * | 2017-06-12 | 2018-12-13 | Wisol Co., Ltd. | Wireless terminal and communication method of the wireless terminal |
| CN108933872A (en) * | 2018-07-05 | 2018-12-04 | 深圳市沃特沃德股份有限公司 | Method and device for supporting mobile phone networking and called based on satellite mobile communication hot spot |
| CN108593012A (en) * | 2018-07-19 | 2018-09-28 | 中国地质调查局水文地质环境地质调查中心 | The fast slowdown monitoring system of geological disaster |
Non-Patent Citations (5)
| Title |
|---|
| 朱鑫昱 等: "LoRa物理层关键技术在卫星物联网中应用的可行性分析", 《通信技术》 * |
| 熊昌浩: "基于LoRa的应急通信系统设计与实现", 《中国优秀硕士论文全文数据库》 * |
| 聂增丽 等: "《无线传感网开发与实践》", 30 November 2018, 《西南交通大学出版》 * |
| 郑浩: "LoRa技术在低功耗广域网络中的实现和应用", 《通信信息技术》 * |
| 马飒飒 等: "《物联网基础技术及应用》", 31 January 2018, 《西安电子科技大学出版社》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187365A (en) * | 2019-05-24 | 2019-08-30 | Oppo广东移动通信有限公司 | A kind of localization method, equipment and system |
| CN110187365B (en) * | 2019-05-24 | 2023-09-08 | Oppo广东移动通信有限公司 | Positioning method, device and system |
| CN111148276A (en) * | 2020-01-13 | 2020-05-12 | 武汉慧联无限科技有限公司 | Communication method, device, base station and storage medium based on LoRa technology |
| CN111148276B (en) * | 2020-01-13 | 2023-05-05 | 武汉慧联无限科技有限公司 | Communication method, device, base station and storage medium based on LoRa technology |
| CN112165353A (en) * | 2020-09-24 | 2021-01-01 | 天宸星通(深圳)科技有限公司 | Satellite Internet of things terminal network access authentication method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109525305A (en) | Communication means, communication system and communication equipment based on LoRa technology | |
| CN105046935A (en) | Dual mode heterogeneous communication system based on low voltage power line and micropower wireless | |
| CN109792287A (en) | A kind of method and apparatus of transmission response message | |
| US8644820B2 (en) | Apparatus and method for acquiring service information in wireless network | |
| CN106170969A (en) | Context management | |
| CN114902634A (en) | Apparatus and method for providing information of application server in mobile communication system | |
| WO2016201913A1 (en) | Data transmission method, device and system, and computer storage medium | |
| CN109548019A (en) | A kind of distribution method and system | |
| CN114726829B (en) | Communication method, user plane gateway and communication system | |
| CN109640289A (en) | A kind of communication means and equipment, communication system | |
| CN109672708A (en) | Communication means and device, system | |
| US20210392538A1 (en) | Method and device for configuring node to transmit and receive data | |
| CN110022583A (en) | A kind of information processing method, device, equipment and computer readable storage medium | |
| CN115152320A (en) | Method and apparatus for enhancing network selection accuracy in a wireless communication system | |
| CN110249634A (en) | Ammeter including power line interface He at least one radio frequency interface | |
| CN103929377A (en) | Wired network and wireless network combined dispatching method and system and related devices | |
| CN113613314A (en) | ICOT private network networking method and system based on converged network splitter | |
| JP2000092076A (en) | Communication control method and transmitter | |
| CN103685007A (en) | Method for MAC address learning during packet forwarding of edge devices and edge device | |
| CN109962834B (en) | Information processing method, system, terminal and computer storage medium | |
| CN105491065A (en) | Resource access method of message-oriented middleware, server, and resource access system | |
| CN113709683B (en) | Communication method and device of subnet service, electronic equipment and readable medium | |
| CN110505648A (en) | A kind of anti-lost line method of wireless device | |
| WO2016201860A1 (en) | Data transmission method and apparatus | |
| CN102742317B (en) | Communication system, communication method and communication apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |
|
| RJ01 | Rejection of invention patent application after publication |