CN103702419B - Signal retransmission method based on intelligent distribution system, relevant equipment and intelligent distribution system - Google Patents
Signal retransmission method based on intelligent distribution system, relevant equipment and intelligent distribution system Download PDFInfo
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- CN103702419B CN103702419B CN201310727162.0A CN201310727162A CN103702419B CN 103702419 B CN103702419 B CN 103702419B CN 201310727162 A CN201310727162 A CN 201310727162A CN 103702419 B CN103702419 B CN 103702419B
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Abstract
The invention discloses a signal retransmission method based on an intelligent distribution system, relevant equipment and an intelligent distribution system. The method comprises the following steps that intelligent distribution type AP (access point) equipment receives a signal from a station (STA) through one antenna; the signal is emitted via other antennae connected with the intelligent distribution type AP equipment except the antenna used in the previous step; and the existence of STA is notified to STA covered by other antennae connected with the intelligent distribution type AP equipment except the antenna used in the first step. According to the scheme, a hidden node under one intelligent distribution type AP can be effectively eliminated, the associated STA under the intelligent distribution type AP can be guaranteed to normally send a message, and the message sending efficiency is improved.
Description
Technical field
The present invention relates to communication technical field, espespecially a kind of signal retransmission method based on intelligence subsystem, relevant device and
Intelligence subsystem.
Background technology
The framework of current intelligence subsystem is as shown in figure 1, include intelligence parting access point（Access Point, AP）, feeder line
And antenna, feeder line connects intelligence parting AP and antenna, and because the material required for intelligence subsystem is few, construction is simple, in a lot of environment
In be widely applied, such as dormitory, hotel's suite, hospital ward etc., the application of intelligence subsystem makes in these environment
Wireless signal obtained greatly being lifted, the area of covering also greatly improves, but still there is a difficult problem for some industries, hide
Node is exactly one of.
In the wireless network, if A node can be detected by B node, but the C node that but can not be communicated with B node
Detect, then A node is exactly concealed nodes for C node.In intelligence subsystem, concealed nodes mean one
2 station points are had under intelligence parting AP（Station, STA）Mutually to can't detect, if this two STA send message and will result in simultaneously
Message collisions, lead to send the transmitting efficiency unsuccessfully reducing message.Therefore, the concealed nodes eliminating under intelligence parting AP are non-
Often important.
Institute of Electrical and Electronics Engineers（Institute of Electrical and Electronics
Engineers, IEEE）802.11 provide using request to send/allowed to send（Request To Send/Clear To
Send, RTS/CTS）The scheme of concealed nodes is eliminated, program limitation is very big, for not assisting using RTS/CTS during agreement
The situation of view, still cannot eliminate concealed nodes.It can be seen that, currently without the concealed nodes that can be good under elimination intelligence parting AP
Scheme.
Content of the invention
The embodiment of the present invention provides a kind of signal retransmission method based on intelligence subsystem, relevant device and intelligence subsystem, uses
To eliminate the concealed nodes under intelligence parting AP.
Therefore, the embodiment of the present invention provides a kind of signal retransmission method based on intelligence subsystem, and described intelligence subsystem includes
Intelligence parting access point AP equipment, at least two antennas and the feeder line connecting described intelligence parting AP equipment and antenna, methods described bag
Include：
Described intelligence parting AP equipment receives the signal from site STA from an antenna；And
By the antenna that the other and described intelligence parting AP equipment in addition to a described antenna are connected, described signal is sent out
It is shot out, the sky that other and described intelligence parting AP equipment in addition to a described antenna for the presence notice of described STA are connected
STA under line covering.
Specifically, the antenna being connected by the other and described intelligence parting AP equipment in addition to a described antenna will be described
Signal is launched, and specifically includes：
The quantity of the antenna being connected according to the other and described intelligence parting AP equipment in addition to a described antenna will be described
Signal carries out branch；
Launched after a road branch by the antenna that the other and described intelligence parting AP equipment in addition to a described antenna are connected
Signal.
Optionally, the antenna being connected by the other and described intelligence parting AP equipment in addition to a described antenna will be described
Before signal is launched, also include：
Amplify described signal.
Also provide a kind of signal retransmission unit based on intelligence subsystem, described intelligence subsystem includes intelligence parting access point AP and sets
Standby, at least two antennas and the feeder line connecting described intelligence parting AP equipment and antenna, described device includes：
Receiving unit, for receiving the signal from site STA from an antenna；
Transmitter unit, for the antenna being connected by the other and described intelligence parting AP equipment in addition to a described antenna
Described signal is launched, the presence of described intelligence parting STA is notified the other and described intelligence in addition to a described antenna
STA under the antenna covering that parting AP equipment connects.
Specifically, described transmitter unit, for being set by other and described intelligence partings AP in addition to a described antenna
Described signal is launched by the standby antenna connecting, specifically for：
The quantity of the antenna being connected according to the other and described intelligence parting AP equipment in addition to a described antenna will be described
Signal carries out branch；
Launched after a road branch by the antenna that the other and described intelligence parting AP equipment in addition to a described antenna are connected
Signal.
Optionally, described transmitter unit, is additionally operable to：
In the antenna being connected by the other and described intelligence parting AP equipment in addition to a described antenna by described signal
Before launching, amplify described signal.
A kind of intelligence parting access point AP equipment is also provided, is applied in intelligence subsystem, described AP equipment passes through feeder line and institute
The every antenna stated in intelligence subsystem connects, described AP equipment include Transmit-Receive Unit that control unit is connected with every antenna and
Switching network, wherein：
The Transmit-Receive Unit that a piece antenna connects, for receiving the signal from site STA from a described antenna；
Described control unit, receives after described signal for monitoring the Transmit-Receive Unit that a described antenna connects, control
Described signal is sent to described switching network by the Transmit-Receive Unit making described antenna connection, and controls described switching network to incite somebody to action
The Transmit-Receive Unit that other antennas that described signal is transmitted in addition to a described antenna connect；
Described switching network, the described signal that the Transmit-Receive Unit for connecting a described antenna sends is sent to except institute
State the Transmit-Receive Unit that the other antennas outside an antenna connect；
The Transmit-Receive Unit that other antennas in addition to a described antenna connect, for the signal sending described switching network
Launched by the antenna connecting, the STA under the presence of described STA is notified connected antenna to cover.
Specifically, the Transmit-Receive Unit that every antenna connects includes first switch, receiving path and transmitting path, and described first
Switch for the switching between described receiving path, described transmitting path；Described switching network includes corresponding with every antenna
Forward path, each forwards path to be used for the reception of the Transmit-Receive Unit of the other antennas connections in addition to itself corresponding antenna
The signal of path, is transmitted to the transmitting path of the Transmit-Receive Unit that itself corresponding antenna connects；Wherein,
Described control unit, the first switch in the Transmit-Receive Unit connecting specifically for the described antenna of control is switched to
Receiving path, controls the receiving path in the Transmit-Receive Unit of described antenna connection will be sent to after described signal branch described
Other antennas corresponding forwarding path in addition to a described antenna in switching network, and control described switching network by described letter
The transmitting path of the Transmit-Receive Unit that the other antennas number being transmitted in addition to a described antenna connect.
Optionally, the receiving path in the Transmit-Receive Unit of every antenna connection also includes power amplification unit, for amplifying
Signal in this receiving path.
A kind of intelligence subsystem is also provided, described including above-mentioned intelligence parting access point AP equipment, at least two antennas and connection
Intelligence parting AP equipment and the feeder line of antenna.
Signal retransmission method based on intelligence subsystem provided in an embodiment of the present invention, relevant device and intelligence subsystem, pass through
Receive the signal from STA from an antenna；By the other and described intelligence parting AP equipment in addition to a described antenna even
Described signal is launched by the antenna connecing, by the presence of described STA notify other in addition to a described antenna with described
STA under the antenna covering that intelligence parting AP equipment connects, thus just can effectively eliminate the concealed nodes under intelligence parting AP equipment,
Ensure that the STA of association under intelligence parting AP equipment can normally send message, improve the transmitting efficiency of message.
Brief description
Fig. 1 is the Organization Chart of intelligence subsystem of the prior art；
Fig. 2 is the flow chart of the signal retransmission method in the embodiment of the present invention based on intelligence subsystem；
Fig. 3 is the structural representation of the signal retransmission unit in the embodiment of the present invention based on intelligence subsystem；
Fig. 4 is the structural representation of the intelligence parting AP equipment in the embodiment of the present invention；
Fig. 5 is the structural representation of preferably intelligence parting AP equipment in the embodiment of the present invention.
Specific embodiment
In order to eliminate the concealed nodes under intelligence parting AP equipment, the embodiment of the present invention provides a kind of letter based on intelligence subsystem
Number retransmission method, the framework of intelligence subsystem as shown in figure 1, the executive agent of the method is intelligence parting AP equipment, flow process such as Fig. 2 institute
Show, execution step is as follows：
S20：Receive from an antenna and be derived from website（Station, STA）Signal.
It can be the signal carrying data message, the management control message of this STA etc. from the signal of STA.
S21：By the antenna that the other in addition to an antenna is connected with intelligence parting AP equipment, signal is launched, will
The presence of STA notifies the STA under the antenna covering that the other in addition to an antenna is connected with intelligence parting AP equipment.
In the program, receive the signal from STA from an antenna, by the other in addition to an antenna and intelligence parting
Signal is launched by the antenna that AP equipment connects, other STA that the presence notice of STA is associated with intelligence parting AP equipment, from
And just can effectively eliminate the concealed nodes under intelligence parting AP equipment it is ensured that the STA of association can be normal under intelligence parting AP equipment
Send message, improve the transmitting efficiency of message.
Specifically, the antenna being connected with intelligence parting AP equipment by the other in addition to an antenna in above-mentioned S21 will
Signal is launched, and specifically includes：
Signal is carried out branch by the quantity of the antenna being connected with intelligence parting AP equipment according to the other in addition to an antenna；
Launch the signal after a road branch with intelligence parting AP equipment by the antenna that the other in addition to an antenna is connected.
The quantity of the antenna that hypothesis is connected with intelligence parting AP equipment is N, then just can be divided into the signal receiving（N-
1）Road, then by the other outside the antenna of removing receipt signal（N-1）Root antenna is launched respectively（N-1）Road, an antenna is sent out
Penetrate a road signal.
Optionally, the antenna being connected with intelligence parting AP equipment by the other in addition to an antenna in above-mentioned S21 will
Before signal is launched, also include：Amplify signal.
After signal is amplified, then carry out branch transmitting again, the coverage after transmitting can be expanded, and then ensure to receive
STA to signal can preferably confirm to launch the presence of the STA of this signal.
Based on same inventive concept, the embodiment of the present invention provides a kind of signal retransmission unit based on intelligence subsystem, structure
As shown in figure 3, including：
Receiving unit 30, for receiving the signal from STA from an antenna.
Transmitter unit 31, for the antenna that is connected with intelligence parting AP equipment by the other in addition to an antenna by signal
Launch, under the presence of STA is notified the antenna that the other in addition to an antenna is connected with intelligence parting AP equipment to cover
STA.
Specifically, above-mentioned transmitter unit 31, for being connected with intelligence parting AP equipment by the other in addition to an antenna
Antenna signal is launched, specifically for：
Signal is carried out branch by the quantity of the antenna being connected with intelligence parting AP equipment according to the other in addition to an antenna；
Launch the signal after a road branch with intelligence parting AP equipment by the antenna that the other in addition to an antenna is connected.
Optionally, above-mentioned transmitter unit 31, is additionally operable to：
Before signal is launched by the antenna being connected with intelligence parting AP equipment by the other in addition to an antenna,
Amplify signal.
Based on same inventive concept, the embodiment of the present invention provides a kind of intelligence parting AP equipment, is applied to intelligence as shown in Figure 1
In subsystem, the structure of AP equipment is as shown in figure 4, include Transmit-Receive Unit 40, switching network 41 and the control being connected with every antenna
Unit 42 processed, the structure of the Transmit-Receive Unit of every antenna connection is all identical, so illustrate only the 1st antenna even in figure
The Transmit-Receive Unit connecing, wherein：
The Transmit-Receive Unit 40 that a piece antenna connects, for receiving the signal from STA from an antenna.
Control unit 42, receives after signal for monitoring the Transmit-Receive Unit that an antenna connects, controls an antenna
The Transmit-Receive Unit connecting sends a signal to switching network, and signal is transmitted to its in addition to an antenna by controlling switch network
The Transmit-Receive Unit that its antenna connects.
Switching network 41, the signal that the Transmit-Receive Unit for connecting an antenna sends is sent in addition to an antenna
The Transmit-Receive Unit that other antennas connect；
The Transmit-Receive Unit 40 that other antennas in addition to an antenna connect, the signal for sending switching network passes through even
The antenna connecing is launched, the STA under the presence of STA is notified connected antenna to cover.
Specifically, the Transmit-Receive Unit 40 of every antenna connection includes first switch, receiving path and transmitting path, and first opens
Close for the switching between receiving path, transmitting path；Switching network 41 includes forwarding path corresponding with every antenna, each
Forward path to be used for the signal of the receiving path of the Transmit-Receive Unit connecting the other antennas in addition to itself corresponding antenna, turn
Issue the transmitting path of the Transmit-Receive Unit that itself corresponding antenna connects；Wherein,
Control unit 42, it is logical that the first switch in the Transmit-Receive Unit connecting specifically for piece antenna of control is switched to reception
Road, controls the receiving path in the Transmit-Receive Unit of an antenna connection will be sent to after signal branch in switching network and removes a sky
Other antennas corresponding forwarding path outside line, and signal is transmitted to the other antennas in addition to an antenna by controlling switch network
The transmitting path of the Transmit-Receive Unit connecting.
Optionally, the receiving path in the Transmit-Receive Unit of every antenna connection also includes power amplification unit, for amplifying
Signal in this receiving path.
Lower mask body introduces a kind of preferred intelligence parting AP equipment, and structure is as shown in figure 5, include Transmit-Receive Unit, switch net
Network 41, CPLD（Complex Programmable Logic Device, CPLD）42 and radio frequency chip
43, CPLD42 correspond to the control unit 42 in Fig. 4, and every antenna is connected on the antennal interface of Transmit-Receive Unit it is assumed that there being N root
Antenna, then just have N number of Transmit-Receive Unit, be designated as respectively ant401, ant402 ..., ant40N, due to the knot of each Transmit-Receive Unit
Structure is all identical, so in figure only illustrates the structure of ant401.
In ant401, switch 1 corresponds to the first switch in Fig. 4, switch 2 and power amplifier（Power
Amplifier, PA）In transmitting path, connection and disconnections that switch 2 can control transmitting path, switch 3, power splitter and
Low-noise amplifier is located in receiving path, and switch 3 can control connection and the disconnection of receiving path, and wave detector is connected to reception
On path, the comparator being connected with wave detector is connected on CPLD42.
In switching network 41, each forwards path to include power splitter and emission switch, and wherein power splitter a is used for radio frequency
The signal that chip 43 sends is sent to the Transmit-Receive Unit that corresponding antenna connects, power splitter by forwarding the emission switch in path
B is used for receiving the signal of the Transmit-Receive Unit that every antenna connects, and the signal receiving is sent to radio frequency chip 43.
When all antennas transmitting normal signal, the switch 2 in all Transmit-Receive Units connects, switchs 1 dozen to transmitting, switch
3 disconnections, now intelligence parting AP is normal transmission state.Under this state, the signal of radio frequency chip 42 reaches respectively through switching network 41
The region that individual antenna covers.
When signal enters fashionable, wave detector in ant401 and comparator work from antenna 1, CPLD42 detects in ant401
Comparator output signal, CPLD42 control ant401 in switch 2 disconnect, switch 1 dozen to receive, switch 3 connect, same to time control
Make the switch 2 in other Transmit-Receive Units to disconnect, switch 1 dozen to transmitting, switch 3 connection.
Under this state, signal is entered by antenna 1, and through the switch 1 in ant1, switch 3, work(is divided into N road after power splitter, and one
Road enters radio frequency chip 43 by the power splitter b in switching network 41 after amplifying, and processes this signal by radio frequency chip 43, separately
Outward（N-1）Road access switch network 41, by the power splitter in switching network（2……N）, emission switch（2……N）Enter it
In his several Transmit-Receive Units, then signal pass through other several Transmit-Receive Units in switch 2, power amplifier（Power
Amplifier, PA）, switch 1, launched by corresponding antenna, thus be accomplished by the signal that antenna 1 receives putting
It is transmitted into after big in the range of the covering of other antennas, other STA thus can be allowed the signal of this STA can be detected, can
To avoid the formation of concealed nodes.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）, and computer program flow process
Figure and/or block diagram are describing.It should be understood that can be by each stream in computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor instructing all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device is to produce
A raw machine is so that produced for reality by the instruction of computer or the computing device of other programmable data processing device
The device of the function of specifying in present one flow process of flow chart 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 can guide computer or other programmable data processing device with spy
Determine in the computer-readable memory that mode works so that the instruction generation inclusion being stored in this computer-readable memory refers to
Make the manufacture of device, this command device realize in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function of specifying in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that counting
On calculation machine or other programmable devices, execution series of operation steps to be to produce computer implemented process, thus in computer or
On other programmable devices, the instruction of execution is provided for realizing in one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function of specifying in individual square frame or multiple square frame.
Although having been described for the alternative embodiment of the present invention, those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including can
Select embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the embodiment of the present invention
The spirit and scope of bright embodiment.So, if these modifications of the embodiment of the present invention and modification belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to comprise these changes and modification.
Claims (10)
1. a kind of signal retransmission method based on intelligence subsystem, described intelligence subsystem includes intelligence parting access point AP equipment, at least
Two antennas and connect described intelligence parting AP equipment with the feeder line of antenna it is characterised in that methods described includes：
Described intelligence parting AP equipment receives the signal from site STA from an antenna；And
By the antenna that the other and described intelligence parting AP equipment in addition to a described antenna are connected, described signal is launched
Go, the presence of described STA is notified the antenna that the other and described intelligence parting AP equipment in addition to a described antenna are connected to cover
STA under lid.
2. the method for claim 1 is it is characterised in that divided by the other and described intelligence in addition to a described antenna
Described signal is launched by the antenna that type AP equipment connects, and specifically includes：
The quantity of the antenna being connected according to the other and described intelligence parting AP equipment in addition to a described antenna is by described signal
Carry out branch；
Launch the letter after a road branch by the antenna that the other and described intelligence parting AP equipment in addition to a described antenna are connected
Number.
3. method as claimed in claim 1 or 2 it is characterised in that by the other in addition to a described antenna with described
Before described signal is launched by the antenna that intelligence parting AP equipment connects, also include：
Amplify described signal.
4. a kind of signal retransmission unit based on intelligence subsystem, described intelligence subsystem includes intelligence parting access point AP equipment, at least
Two antennas and connect described intelligence parting AP equipment with the feeder line of antenna it is characterised in that described device includes：
Receiving unit, for receiving the signal from site STA from an antenna；
Transmitter unit, for the antenna that is connected by the other and described intelligence parting AP equipment in addition to a described antenna by institute
State signal to launch, the presence of intelligence parting STA is notified other and described intelligence partings AP in addition to a described antenna to set
STA under the standby antenna covering connecting.
5. device as claimed in claim 4 is it is characterised in that described transmitter unit, for by except a described antenna it
Described signal is launched by the antenna that outer other and described intelligence parting AP equipment are connected, specifically for：
The quantity of the antenna being connected according to the other and described intelligence parting AP equipment in addition to a described antenna is by described signal
Carry out branch；
Launch the letter after a road branch by the antenna that the other and described intelligence parting AP equipment in addition to a described antenna are connected
Number.
6. the device as described in claim 4 or 5, it is characterised in that described transmitter unit, is additionally operable to：
In the antenna being connected by the other and described intelligence parting AP equipment in addition to a described antenna, described signal is launched
Before going out, amplify described signal.
7. a kind of intelligence parting access point AP equipment, is applied in intelligence subsystem, and described AP equipment is divided with described intelligence by feeder line and is
Every antenna in system connects it is characterised in that described AP equipment includes the Transmit-Receive Unit that control unit is connected with every antenna
And switching network, wherein：
The Transmit-Receive Unit that a piece antenna connects, for receiving the signal from site STA from a described antenna；
Described control unit, receives after described signal for monitoring the Transmit-Receive Unit that a described antenna connects, controls institute
State the Transmit-Receive Unit that antenna connects and described signal is sent to described switching network, and control the described switching network will be described
The Transmit-Receive Unit that other antennas that signal is transmitted in addition to a described antenna connect；
Described switching network, the described signal that the Transmit-Receive Unit for connecting a described antenna sends is sent to except described one
The Transmit-Receive Unit that other antennas outside root antenna connect；
The Transmit-Receive Unit that other antennas in addition to a described antenna connect, the signal for sending described switching network passes through
The antenna connecting is launched, the STA under the presence of described STA is notified connected antenna to cover.
8. equipment as claimed in claim 7 is it is characterised in that the Transmit-Receive Unit of every antenna connection includes first switch, connects
Receive path and transmitting path, described first switch is used for the switching between described receiving path, described transmitting path；Described switch
Network includes forwarding path corresponding with every antenna, and each forwards path to be used for the other in addition to itself corresponding antenna
The signal of the receiving path of Transmit-Receive Unit that antenna connects, the transmitting being transmitted to the Transmit-Receive Unit that itself corresponding antenna connects is led to
Road；Wherein,
Described control unit, the first switch in the Transmit-Receive Unit connecting specifically for the described antenna of control is switched to reception
Path, controls the receiving path in the Transmit-Receive Unit of described antenna connection to be sent to described switch by after described signal branch
Other antennas corresponding forwarding path in addition to a described antenna in network, and control described switching network to turn described signal
Issue the transmitting path of the Transmit-Receive Unit that the other antennas in addition to a described antenna connect.
9. equipment as claimed in claim 8 is it is characterised in that the receiving path in the Transmit-Receive Unit of every antenna connection is also wrapped
Include power amplification unit, for amplifying the signal in this receiving path.
10. a kind of intelligence subsystem it is characterised in that include described intelligence parting access point AP equipment as arbitrary in claim 7-9,
At least two antennas and the feeder line connecting described intelligence parting AP equipment and antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310727162.0A CN103702419B (en) | 2013-12-25 | 2013-12-25 | Signal retransmission method based on intelligent distribution system, relevant equipment and intelligent distribution system |
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| CN201310727162.0A CN103702419B (en) | 2013-12-25 | 2013-12-25 | Signal retransmission method based on intelligent distribution system, relevant equipment and intelligent distribution system |
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| EP2104392A2 (en) * | 2008-03-18 | 2009-09-23 | Sony Corporation | Communication apparatus and communication method, communication system and computer program |
| CN103249166A (en) * | 2012-02-01 | 2013-08-14 | 中兴通讯股份有限公司 | Method and device and system for starting RTS/CTS mechanism |
| CN102548003A (en) * | 2012-03-14 | 2012-07-04 | 北京邮电大学 | Multi-channel microwave resource dispatching method in wireless system of intelligent light carrier |
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Address after: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee after: RUIJIE NETWORKS CO., LTD. Address before: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee before: Fujian Xingwangruijie Network Co., Ltd. |
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