CN106161574A - A kind of network signal provides method and device - Google Patents
A kind of network signal provides method and device Download PDFInfo
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- CN106161574A CN106161574A CN201510206418.2A CN201510206418A CN106161574A CN 106161574 A CN106161574 A CN 106161574A CN 201510206418 A CN201510206418 A CN 201510206418A CN 106161574 A CN106161574 A CN 106161574A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The invention discloses a kind of network signal and method and device is provided, method is, network service provides device to detect the various types of signals of communication being able to receive that in real time, and determine that the signal of communication received is corresponding to local any signal conversion module, the signal of communication of respective type is converted to network signal by the signal conversion module being determined by, and thinks that terminal provides network service.Use technical solution of the present invention, network service provides device can generate network signal according to any one type or polytype signal of communication, it is not limited to a kind of certain types of signal of communication, network signal is made to provide device can be applicable to various types of signal of communication, ensure that vehicle can keep network signal not interrupt in the region that any a type of signal of communication covers, be effectively increased network communication quality.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of network signal and method and device is provided.
Background technology
WLAN (Wireless Local Area Network, be called for short WLAN) is low with networking cost,
Access efficiency is high, dispose the features such as flexible, is widely applied.For meeting mass transportation facilities, such as
Bus, subway, train etc., above the online demand of passenger, by affixing one's name to vehicle-mounted access point at vehicle upper
(Access Point is called for short AP), WLAN technology is used to make wireless network cover vehicle, on vehicle
Passenger service on net (refering to shown in Fig. 1) is provided.
At present, all vehicle-mounted access points all can only receive the signal of communication that single operator provides, and this is led to
Letter signal is converted to network signal, provides network service for terminal.When vehicle be positioned at vehicle-mounted access point can not
Time in the telecommunications signal range that the operator joined provides, vehicle-mounted access point will be owing to cannot receive communication letter
Number, and network service cannot be provided the terminal with.
As can be seen here, current vehicle-mounted access point is during providing network signal, when vehicle-mounted access point cannot
When receiving the signal of communication of respective type, there is the problem that network service cannot be provided.
Summary of the invention
The embodiment of the present invention provides a kind of network signal to provide method and device, in order to solve current vehicle-mounted access
Point is during providing network signal, when vehicle-mounted access point cannot receive the signal of communication of respective type
Time, there is the problem that network service cannot be provided.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A kind of network signal provides method, is applied in Vehicular communication system, and described method includes:
Obtain the signal of communication that current time can be detected by；
From at least two signal conversion module that this locality comprises, determine that the described signal of communication of acquisition is corresponding
Signal conversion module；
Described signal of communication is converted to network signal by the described signal conversion module controlling to determine, and passes through institute
State network signal and provide network service for terminal.
A kind of network service provides device, is applied in Vehicular communication system, and described network signal provides device
Including at least two signal conversion module, each signal conversion module is only capable of processing a type of communication letter
Number, described device includes:
Acquisition module, for obtaining the signal of communication that current time can be detected by；
Determine module, for determining the described logical of acquisition from least two signal conversion module that this locality comprises
The signal conversion module that letter signal is corresponding；
Control module, for sending described signal of communication to the signal conversion module determined；
Described signal conversion module, for being converted to network signal, and by described net by described signal of communication
Network signal provides network service for terminal.
In the embodiment of the present invention, network service provides device to detect be able to receive that various types of logical in real time
Letter signal, and determine that the signal of communication received corresponds to local any signal conversion module, by really
The signal of communication of respective type is converted to network signal by fixed signal conversion module, thinks that terminal provides network
Service.Using technical solution of the present invention, network service provides the device can be according to any one type or many
The signal of communication of type generates network signal, is not limited to a kind of certain types of signal of communication so that network
Signal provides device can be applicable to various types of signal of communication, it is ensured that vehicle is the most a type of
Network signal can be kept not interrupt in the region that signal of communication covers, be effectively increased network communication quality.
Accompanying drawing explanation
Fig. 1 is Vehicular communication system structural representation in prior art；
Fig. 2 a and Fig. 2 b is Vehicular communication system structural representation in the embodiment of the present invention；
Fig. 3 provides method flow diagram for network signal in the embodiment of the present invention；
Fig. 4 is mapping table schematic diagram in the embodiment of the present invention；
Fig. 5 provides apparatus structure schematic diagram for network signal in the embodiment of the present invention.
Detailed description of the invention
Thering is provided during network signal, when vehicle-mounted access point cannot connect to solve current vehicle-mounted access point
When receiving the signal of communication of respective type, there is the problem that network service cannot be provided.In the embodiment of the present invention,
Network service provides device to detect the various types of signals of communication being able to receive that in real time, and determines and receive
Signal of communication corresponding to local any signal conversion module, the signal conversion module being determined by is by phase
The signal of communication answering type is converted to network signal, thinks that terminal provides network service.Use the technology of the present invention
Scheme, network service provides device can generate according to any one type or polytype signal of communication
Network signal, is not limited to a kind of certain types of signal of communication so that network signal provides device to be suitable for
In various types of signals of communication, it is ensured that vehicle is in the region that any a type of signal of communication covers
Network signal can be kept not interrupt, be effectively increased network communication quality.
Refering to shown in Fig. 2 a and Fig. 2 b, for Vehicular communication system structural representation in the embodiment of the present invention, it is somebody's turn to do
Vehicular communication system includes that network signal provides device, and terminal；Wherein, network signal provides device bag
Containing reception antenna, it is used for receiving signal of communication；Network signal provides device to comprise at least two signal modulus of conversion
Block, different signal conversion module for being converted to network letter by the different types of signal of communication received
Number；Additionally, network signal provides device also to include, network signal launches antenna (refering to shown in Fig. 2 a), uses
In the network signal being converted to wirelessly is transferred out；Or, network signal provides device bag
Include wireline cable (refering to shown in Fig. 2 b), for being transmitted by wired mode by the network signal being converted to
Going out, this wireline cable can be realized by RJ45 cable；Terminal in Vehicular communication system, is used for connecing
Receive the network signal that network signal provides device to provide, and obtained the information of network side by this network signal.
Optionally, when network signal provides device to include wireline cable, Vehicular communication system also includes collection
Line device or router, carry out shaping and amplification for the network signal providing device to generate network signal
After process, the network signal after shaping and each processing and amplifying is transferred out.
Optionally, above-mentioned signal conversion module can pass through client identification module (Subscriber Identity
Module, is called for short SIM) card realization.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
Refering to shown in Fig. 3, in the embodiment of the present invention, network signal provides device to provide network signal for terminal
Process, including:
Step 300: network signal provides device to obtain the signal of communication that current time can be detected by.
In the embodiment of the present invention, network signal provides device by reception antenna, detects current time institute in real time
The signal of communication that can receive, to determine that current time network signal provides device to be in any signal of communication
In overlay area.Wherein, the signal of communication of each type corresponds to a Virtual network operator, i.e. different nets
The signal of communication that network operator provides is different.
Step 310: network signal provides device to determine from least two signal conversion module that this locality comprises
Signal conversion module corresponding to signal of communication obtained.
In the embodiment of the present invention, network signal provides in device and comprises at least two signal conversion module；Preferably
, the number of the signal conversion module that network signal offer device comprises is equal to communication signal type total number.
Optionally, network signal provides device to be the corresponding mark of each signal conversion module distribution, and
Locally created mapping table, comprises communication signal type and signal conversion module mark in this mapping table
Corresponding relation, or this mapping table comprises Virtual network operator and the signal conversion module mark of signal of communication
The corresponding relation known, such as, refering to shown in Fig. 4, for Virtual network operator 1, the signal conversion of its correspondence
Module id is signal conversion module 1, for Virtual network operator 2, the signal conversion module mark of its correspondence
For signal conversion module 2.
Based on above-mentioned mapping table, network signal provides device to obtain the type of signal of communication, from this correspondence
Relation table inquires about the type of the signal of communication of acquisition, and signal corresponding to the type that obtains this signal of communication turns
Die change block identification, according to the signal conversion module mark obtained, determines the signal modulus of conversion that signal of communication is corresponding
Block；Or, network signal provides device to obtain the Virtual network operator that signal of communication is corresponding, from this corresponding relation
Table is inquired about the Virtual network operator that the signal of communication of acquisition is corresponding, and obtains the network fortune that this signal of communication is corresponding
The signal conversion module mark that battalion business is corresponding, according to the signal conversion module mark obtained, determines signal of communication
Corresponding signal conversion module.
Optionally, network signal provides device can be determined the class of signal of communication by the frequency of signal of communication
Type, and the Virtual network operator that signal of communication is corresponding；Network signal provides device can also pass through signal of communication
In the network operator identification that carries, determine the type of signal of communication.
Using technique scheme, network signal provides in device and comprises multi-signal modular converter, each
The most corresponding a type of signal of communication of signal conversion module；Further, network signal provides device pre-in this locality
If mapping table, obtain, according to this mapping table, the signal conversion module that signal of communication is corresponding, obtain logical
The process simple and fast of the signal conversion module that letter signal is corresponding, accuracy is high.
Step 320: above-mentioned signal of communication is turned by the signal conversion module that network signal provides device to control to determine
It is changed to network signal, and provides network service by this network signal for terminal.
In the embodiment of the present invention, network signal provides device one can be detected by point between the most for the moment
Signal of communication, it is also possible to multiple signal of communication detected；Network signal provides device different based on above two
Application scenarios, generate network signal in different ways.
Concrete, when network signal provides device a type of signal of communication only to be detected at current time
Time, control the signal conversion module that this signal of communication is corresponding, the signal of communication detected is converted directly into finger
The network signal of the formula that fixes, and provide network service by the network signal of this specified format for terminal；Wherein,
This specified format can be configured according to existing network communication protocol.Such as, network signal provides device to exist
Current time only detects signal of communication A, and the type of this signal of communication A is Class1, Network Search signal
Mapping table in device is provided, determines the signal conversion module mark that the Class1 of this signal of communication A is corresponding
Knowing is signal conversion module 1, then by signal conversion module 1, signal of communication A is converted to network signal.
Concrete, when network signal provides device the signal of communication of at least two type to be detected at current time
Time, according to the signal quality of the signal of communication of each type, from all signals of communication, choose signal quality
Optimum signal of communication；And control the signal conversion module that the signal of communication chosen is corresponding, the communication that will choose
Signal is converted to perform the network signal of form, and is that terminal carries by the network signal of above-mentioned specified format
For network service.
Optionally, network signal provides device to choose the communication letter that signal quality is optimum from all signals of communication
Number process, specifically include: obtain the signal quality parameter of the signal of communication of each type respectively；Relatively
The signal quality parameter of the signal of communication of each type, and by true for the signal of communication of signal quality parameter maximum
It is set to the signal of communication that signal quality is optimum.Such as, network signal provides device to detect at current time simultaneously
To signal of communication A and signal of communication B, obtain the signal quality parameter (a) of signal of communication A and the letter that communicates
The signal quality parameter (b) of number B, comparison signal mass parameter a and signal quality parameter b, owing to a is big
In b, accordingly, it is determined that signal of communication A is optimum signal of communication, the type obtaining this signal of communication A is
Class1, Network Search signal provides the mapping table in device, determines the Class1 of this signal of communication A
Corresponding signal conversion module is designated signal conversion module 1, then by signal conversion module 1 by signal of communication
A is converted to network signal.
Further, when network signal provides device in the multiple signal of communication that current time detects, deposit
When the signal of communication that at least two signal quality parameter is identical, network signal provides device from this at least two
In the signal of communication that signal quality parameter is identical, obtain the signal stabilization degree ginseng of each signal of communication respectively
Number, from the signal of communication that all signal quality parameters are identical, chooses the communication that signal stabilization degree parameter is maximum
Signal；And control the signal conversion module that the signal of communication chosen is corresponding, the signal of communication chosen is converted to
Perform the network signal of form, and provide network to take by the network signal of above-mentioned specified format for terminal
Business.
Using technique scheme, network signal controls the communication letter that device can monitor according to current time
Number, control the signal conversion module corresponding with the signal of communication detected and change this signal of communication, Jin Ersheng
Becoming network signal, provide network service for terminal, this network signal controls device and can change various types of
Signal of communication, is not only restricted to the signal of communication of single type, thus the scope of application is wider, using the teaching of the invention it is possible to provide net
Network signal is more stable, improves the performance of Vehicular communication system.
Additionally, when network signal provides device the signal of communication of at least two type to be detected at current time
Time, obtain the signal conversion module that the signal of communication of each type is corresponding respectively, control each letter respectively
The signal of communication of respective type is converted to the network signal of specified format by number modular converter, and will be converted to
Each of the network signal of type merge, and provide net by the network signal after merging for terminal
Network services.Such as, network signal provides device to be detected simultaneously by signal of communication A and the letter that communicates at current time
Number B, the type obtaining this signal of communication A is Class1, and the type of signal of communication B is type 2；Search
Network signal provides the mapping table in device, determines that the signal that the Class1 of this signal of communication A is corresponding turns
Die change block identification is signal conversion module 1, the signal conversion module mark of type 2 correspondence of signal of communication B
For signal conversion module 2, then by signal conversion module 1 signal of communication A is converted to network signal, and by
Signal of communication B is converted to network signal by signal conversion module 2；And merge signal conversion module 1 conversion
Network signal and the network signal of signal conversion module 2 conversion.
Using technique scheme, network signal provides the communication letter that device can monitor according to current time
Number, control the signal conversion module corresponding with the signal of communication detected and change this signal of communication, Jin Ersheng
Become network signal, and the multi-channel network signal of generation is merged, provide network service, this net for terminal
Network signal control device can change various types of signal of communication, is not only restricted to the communication letter of single type
Number, thus the scope of application is wider, and closes after different types of signal of communication is converted to network signal
And, using the teaching of the invention it is possible to provide network signal more stable, further ensure that not interrupting of network signal, improve
The performance of Vehicular communication system.
Further, when time point A, network signal provides device to be currently in use signal of communication A, and will be logical
Letter signal A is converted to network signal；As time goes on, network signal provide device in moving process,
The signal of communication X of any one type is detected at time point B, and in this any one type of time point B
The signal quality of signal of communication X be better than the signal quality parameter of the signal of communication that time point A uses, by
Signal of communication A switches to the signal of communication X of any one type above-mentioned；And leading to this any one type
Letter signal X is converted to network signal, and provides network service by this network signal for terminal.
In the embodiment of the present invention, network signal provides device to provide network service by network signal for terminal,
Specifically include: by wireline cable mode transmission network signal, provide network service for terminal；Or, logical
Cross wireless way for transmitting network signal, provide network service for terminal.
Based on technique scheme, refering to shown in Fig. 5, the embodiment of the present invention also provides for a kind of network signal and carries
For device, including acquisition module 50, determine module 51, control module 52, signal conversion module 53, with
And output module 54, wherein:
Acquisition module 50, for obtaining the signal of communication that current time can be detected by；
Determine module 51, for determining the communication of acquisition from least two signal conversion module that this locality comprises
The signal conversion module that signal is corresponding；
Control module 52, for sending described signal of communication to the signal conversion module 53 determined；
Described signal conversion module 53, for being converted to network signal by described signal of communication；
Output module 54, provides network service by described network signal for terminal.
Optionally, described signal conversion module 53, specifically for: when current time only detects a type
Signal of communication time, control the signal conversion module that described signal of communication is corresponding, by the described communication detected
Signal is converted directly into the network signal of specified format, and is terminal by the network signal of described specified format
Network service is provided；When current time detects the signal of communication of at least two type, according to each kind
The signal quality of the signal of communication of type, chooses the signal of communication that signal quality is optimum from all signals of communication；
And control the signal conversion module that the signal of communication chosen is corresponding, be converted to the signal of communication chosen perform lattice
The network signal of formula, and provide network service by the network signal of described specified format for terminal；Or,
Obtain the signal conversion module that the signal of communication of each type is corresponding respectively, control each signal respectively and turn
The signal of communication of respective type is converted to the network signal of specified format by die change block, and every by be converted to
A type of network signal merges, and provides network to take by the network signal after merging for terminal
Business.
Optionally, described signal conversion module 53, specifically for: obtain the communication letter of each type respectively
Number signal quality parameter；The relatively signal quality parameter of the signal of communication of each type, and by signal matter
The signal of communication of amount parameter maximum is defined as the signal of communication that signal quality is optimum.
Further, described device also includes processing module 55, is used for: when detecting the presence of any one kind
When the signal quality of the signal of communication of type is better than the signal quality parameter of the signal of communication that current time uses, by
The signal of communication that current time uses switches to the signal of communication of any one type described；And by described arbitrarily
A type of signal of communication is converted to network signal, and provides network to take by described network signal for terminal
Business.
Optionally, described output module 54, specifically for: transmit described network by wireline cable mode and believe
Number, provide network service for terminal；Or, wirelessly transmit described network signal, carry for terminal
For network service.
In sum, in the embodiment of the present invention, network signal provides device to obtain current time and can be detected by
Signal of communication；Network signal offer device determines the signal conversion module that the signal of communication of acquisition is corresponding；Net
Above-mentioned signal of communication is converted to network signal by the signal conversion module that network signal provides device to control to determine, and
Network service is provided for terminal by this network signal.Using technical solution of the present invention, network service provides dress
Put and can generate network signal according to any one type or polytype signal of communication, be not limited to one
Certain types of signal of communication so that network signal provides device can be applicable to various types of communication letter
Number, it is ensured that vehicle can keep network signal not in the region that any a type of signal of communication covers
Interrupt, be effectively increased network communication quality.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (include but not limited to disk memory,
CD-ROM, optical memory etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention
The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding
The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating
The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one
The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set
In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart
The function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know base
This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted
Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not take off
Spirit and scope from the embodiment of the present invention.So, if these amendments of the embodiment of the present invention and modification belong to
Within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention be also intended to comprise these change and
Including modification.
Claims (10)
1. network signal provides a method, is applied in Vehicular communication system, it is characterised in that described
Method includes:
Obtain the signal of communication that current time can be detected by；
From at least two signal conversion module that this locality comprises, determine that the described signal of communication of acquisition is corresponding
Signal conversion module；
Described signal of communication is converted to network signal by the described signal conversion module controlling to determine, and passes through institute
State network signal and provide network service for terminal.
2. the method for claim 1, it is characterised in that described signal of communication is converted to network
Signal, and provide network service by described network signal for terminal, specifically include:
When current time only detects a type of signal of communication, control the letter that described signal of communication is corresponding
Number modular converter, is converted directly into the described signal of communication detected the network signal of specified format, and leads to
The network signal crossing described specified format provides network service for terminal；
When current time detects the signal of communication of at least two type, believe according to the communication of each type
Number signal quality, from all signals of communication, choose the signal of communication that signal quality is optimum；And control to choose
Signal conversion module corresponding to signal of communication, the signal of communication chosen is converted to perform the network letter of form
Number, and provide network service by the network signal of described specified format for terminal；Or, obtain respectively
The signal conversion module that the signal of communication of each type is corresponding, controlling each signal conversion module respectively will
The signal of communication of respective type is converted to the network signal of specified format, and each of will be converted to type
Network signal merge, and by merge after network signal provide network service for terminal.
3. method as claimed in claim 2, it is characterised in that according to the signal of communication of each type
Signal quality, from all signal of communication, choose the signal of communication that signal quality is optimum, specifically include:
Obtain the signal quality parameter of the signal of communication of each type respectively；
The relatively signal quality parameter of the signal of communication of each type, and maximum for signal quality parameter is led to
Letter signal is defined as the signal of communication that signal quality is optimum.
4. method as claimed in claim 2, it is characterised in that described method also includes:
When the signal quality of the signal of communication detecting the presence of any one type is better than what current time used
During the signal quality parameter of signal of communication, current time the signal of communication used switch to described any one
The signal of communication of type；And
The signal of communication of any one type described is converted to network signal, and by described network signal is
Terminal provides network service.
5. the method as described in any one of claim 1-4, it is characterised in that by described network signal
There is provided network service for terminal, specifically include:
Transmit described network signal by wireline cable mode, provide network service for terminal；Or,
Wirelessly transmit described network signal, provide network service for terminal.
6. network service provides a device, is applied in Vehicular communication system, it is characterised in that described
Device includes:
Acquisition module, for obtaining the signal of communication that current time can be detected by；
Determine module, for determining the described logical of acquisition from least two signal conversion module that this locality comprises
The signal conversion module that letter signal is corresponding；
Control module, for sending described signal of communication to the signal conversion module determined；
Described signal conversion module, for being converted to network signal by described signal of communication；
Output module, for providing network service by described network signal for terminal.
7. device as claimed in claim 6, it is characterised in that described signal conversion module, specifically uses
In:
When current time only detects a type of signal of communication, control the letter that described signal of communication is corresponding
Number modular converter, is converted directly into the described signal of communication detected the network signal of specified format, and leads to
The network signal crossing described specified format provides network service for terminal；When current time detects at least two
During the signal of communication of type, according to the signal quality of the signal of communication of each type, from all signals of communication
In choose the signal of communication that signal quality is optimum；And control the signal modulus of conversion that the signal of communication chosen is corresponding
Block, is converted to perform the network signal of form by the signal of communication chosen, and by described specified format
Network signal provides network service for terminal；Or, the signal of communication obtaining each type respectively is corresponding
Signal conversion module, controls each signal conversion module respectively and is converted to the signal of communication of respective type refer to
The network signal of the formula that fixes, and the network signal each of being converted to type is merged, Yi Jitong
Cross the network signal after merging and provide network service for terminal.
8. device as claimed in claim 7, it is characterised in that described signal conversion module, specifically uses
In:
Obtain the signal quality parameter of the signal of communication of each type respectively；The relatively communication of each type
The signal quality parameter of signal, and it is optimum that the signal of communication that signal quality parameter is maximum is defined as signal quality
Signal of communication.
9. device as claimed in claim 7, it is characterised in that described device also includes processing module,
For:
When the signal quality of the signal of communication detecting the presence of any one type is better than what current time used
During the signal quality parameter of signal of communication, current time the signal of communication used switch to described any one
The signal of communication of type；And the signal of communication of any one type described is converted to network signal, and pass through
Described network signal provides network service for terminal.
10. the device as described in any one of claim 6-9, it is characterised in that described output module, tool
Body is used for:
Transmit described network signal by wireline cable mode, provide network service for terminal；Or, pass through
Network signal described in wireless way for transmitting, provides network service for terminal.
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| CN201717893U (en) * | 2010-03-10 | 2011-01-19 | 陕西银河景天电子有限责任公司 | Wireless remote data transmission device adaptive to three 3G communication protocols |
| CN102438329A (en) * | 2011-10-12 | 2012-05-02 | 深圳市路畅科技有限公司 | Dialing method of vehicle-mounted navigation device supporting multimode 3G (the 3rd generation) network |
| CN102664916A (en) * | 2012-03-23 | 2012-09-12 | 清华大学 | Multi-mode wireless communication vehicle road cooperation data interaction system |
| CN104053044A (en) * | 2013-03-15 | 2014-09-17 | 松下航空电子公司 | System And Method For Providing Multi-mode Wireless Data Distribution |
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Application publication date: 20161123 |