CN111343641A - Intelligent 5G network system - Google Patents
Intelligent 5G network system Download PDFInfo
- Publication number
- CN111343641A CN111343641A CN202010143143.3A CN202010143143A CN111343641A CN 111343641 A CN111343641 A CN 111343641A CN 202010143143 A CN202010143143 A CN 202010143143A CN 111343641 A CN111343641 A CN 111343641A
- Authority
- CN
- China
- Prior art keywords
- module
- base station
- communication
- network
- intelligent
- 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
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
An intelligent 5G network system comprises a server and a terminal; the server is wirelessly connected with the terminal, the terminal sends the information to the server, the server sends the information of other terminals to the terminal, and the server allows each terminal to select other terminals for communication according to relevant characteristics; the terminal comprises a 5G base station, a 5G antenna, a data receiving module and a data sending module; the 5G antenna signal is connected with the data receiving module, the data receiving module is connected with the 5G base station, and the 5G base station is in communication connection with the data sending module; the 5G antenna is used for receiving signals, and the 5G base station is used for receiving, transmitting and processing information; the 5G base station comprises a base station activation module, a macro base station, a micro base station, a directional coupler, a communication transceiving module, an optical fiber communication module and a network calibration module. The invention improves the network capacity of the mobile communication system, greatly improves the frequency spectrum efficiency of the system area, reduces the hardware cost, greatly reduces the time delay and can provide a more energy-saving and intelligent wireless network.
Description
Technical Field
The invention relates to the technical field of 5G networks, in particular to an intelligent 5G network system.
Background
Like earlier 2G, 3G and 4G mobile networks, 5G networks are digital cellular networks in which the service area covered by the provider is divided into many small geographical areas called cells, and analog signals representing sound and images are digitized in handsets, converted by analog-to-digital converters and transmitted as a bit stream; all 5G wireless devices in a cell communicate by radio waves with a local antenna array and a low power autonomous transceiver in the cell, the transceiver allocating channels from a common frequency pool, which channels are reusable in geographically separated cells, the local antenna being connected to the telephone network and the internet by high bandwidth optical fiber or wireless backhaul connections; as with existing handsets, when a user passes from one cell to another, their mobile device will automatically "switch" to the antenna in the new cell;
the main advantages of 5G networks are that the data transmission rate is much higher than previous cellular networks, up to 10Gbit/s, faster than current wired internet, 100 times faster than previous 4G lte cellular networks, another advantage is lower network delay, less than 1 ms; due to faster data transmission, the 5G network will not only provide services for the mobile phone, but will also become a general home and office network provider, competing with the cable network provider; the fifth generation mobile communication technology is the latest generation cellular mobile communication technology, and the performance targets of 5G are high data rate, reduced delay, energy saving, cost reduction, increased system capacity and large-scale device connection; in recent years, the fifth generation mobile communication system has become a hotspot for discussion of communication industry and academia, and the development of 5G mainly has two driving forces, on one hand, the fourth generation mobile communication system 4G represented by long term evolution technology is fully commercialized, and the discussion of the next generation technology is scheduled, on the other hand, the demand of mobile data is explosively increased, the existing mobile communication system is difficult to meet the future demand, and the development of a new generation 5G system is urgently needed;
however, the existing 5G network system is not intelligent enough, the energy consumption is large, the serving cells are dense and the interference is large, and the use effect needs to be improved.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides an intelligent 5G network system, which improves the network capacity of a mobile communication system, greatly improves the frequency spectrum efficiency of a system area, reduces the hardware cost, greatly reduces the time delay and can provide a more energy-saving intelligent wireless network.
(II) technical scheme
The invention provides an intelligent 5G network system, which comprises a server and a terminal, wherein the server is connected with the terminal;
the server is wirelessly connected with the terminal, the terminal sends the information to the server, the server sends the information of other terminals to the terminal, and the server allows each terminal to select other terminals for communication according to relevant characteristics;
the terminal comprises a 5G base station, a 5G antenna, a data receiving module and a data sending module; the 5G antenna signal is connected with the data receiving module, the data receiving module is connected with the 5G base station, and the 5G base station is in communication connection with the data sending module; the 5G antenna is used for receiving signals, the data receiving module is used for receiving data, the 5G base station is used for receiving, sending and processing information, and the data sending module is used for sending data;
the 5G base station comprises a base station activation module, a macro base station, a micro base station, a directional coupler, a communication transceiving module, an optical fiber communication module and a network calibration module;
a base station activation module for activating a corresponding base station to serve the 5G user;
the macro base station is connected with the optical fiber communication module and used for guaranteeing the continuity of signal coverage;
the micro base station comprises a plurality of antenna radiation modules, an antenna transceiver module is connected with a directional coupler, the directional coupler is connected with a communication transceiver module, and the communication transceiver module is connected with an optical fiber communication module; the signal of the antenna radiation module enters the communication transceiving module through the directional coupler, and the communication transceiving module transmits the signal to the optical fiber communication module;
the network calibration module is connected with the micro base station and is used for carrying out signal radiation monitoring, fault diagnosis and fault treatment on the antenna radiation module in the signal transmission process.
Preferably, the base station activation module comprises a set establishment module, a calculation processing module, a judgment module, an activation submodule and an update module;
the set establishing module is used for establishing a set corresponding to the base station group;
the calculation processing module is used for calculating the number of base stations which provide service for all users under the current condition;
the judging module is used for judging the base stations which can provide service for the most users in the set;
an activation submodule for activating the corresponding base station to access a maximum number of users without exceeding the available bandwidth;
and an updating module for removing the selected active base stations from the set and simultaneously removing the users communicating therewith.
Preferably, the number of the directional couplers and the number of the communication transceiver modules are multiple, each directional coupler is connected with one communication transceiver module, the multiple directional couplers are connected in sequence and then connected to the network calibration module, so that the transceiving state information of the antenna radiation module of the micro base station is transmitted to the network calibration module, and the calibration network is connected with the optical fiber communication network.
Preferably, each communication transceiver module includes a downlink channel and an uplink channel.
Preferably, the downlink channel comprises a duplexer, a low noise amplifier, a radio frequency filter, an intermediate frequency receiver and a baseband signal receiver; the duplexer is connected with the directional coupler, the low-noise amplifier is connected with the duplexer and the radio frequency filter, the intermediate frequency receiver is connected with the radio frequency filter and the baseband signal receiver, and the output end of the baseband signal receiver is connected with the optical fiber communication network.
Preferably, the uplink channel comprises a baseband signal transmitter, a radio frequency power amplifier and a duplexer; the output end of the optical fiber communication network is connected with the input end of the baseband signal transmitter, the output end of the baseband signal transmitter is connected with the input end of the radio frequency signal transmitter, the output end of the radio frequency signal transmitter is connected with the input end of the radio frequency power amplifier, and the output end of the radio frequency power amplifier is connected with the input end of the duplexer.
Preferably, the number of the 5G antennas is multiple, and the arrangement distribution of the 5G antennas is a three-dimensional array distribution.
Preferably, the 5G base station can also obtain the positioning information of the mobile intelligent terminal, calculate the position and motion status of the mobile intelligent terminal in the area according to the positioning data of the mobile intelligent terminal, know the number of the mobile intelligent terminals entering the service cell, and meet the user requirements through corresponding adjustment.
Preferably, the adjusting means includes adjusting power and direction of the 5G antenna and a switch of each 5G base station.
The technical scheme of the invention has the following beneficial technical effects:
electromagnetic wave energy is concentrated in a specific direction, signal waste is reduced while received signals are enhanced, communication quality is obviously improved, baseband capacity can be shared, capacity expansion capacity is high, optical fibers are almost lossless, and a coverage area and system capacity can be independently planned; the number of the base stations is minimum, so that the waste of resources is avoided, the activation time is reduced, and the using effect is better;
the invention improves the network capacity of the mobile communication system, greatly improves the frequency spectrum efficiency of the system area, reduces the hardware cost, greatly reduces the time delay and can provide a more energy-saving and intelligent wireless network.
Drawings
Fig. 1 is a system block diagram of an intelligent 5G network system according to the present invention.
Fig. 2 is a system block diagram of a 5G base station in an intelligent 5G network system according to the present invention.
Fig. 3 is a system block diagram of a base station activation module in an intelligent 5G network system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the intelligent 5G network system provided by the present invention includes a server and a terminal;
the server is wirelessly connected with the terminal, the terminal sends the information to the server, the server sends the information of other terminals to the terminal, and the server allows each terminal to select other terminals for communication according to relevant characteristics;
the terminal comprises a 5G base station, a 5G antenna, a data receiving module and a data sending module; the 5G antenna signal is connected with the data receiving module, the data receiving module is connected with the 5G base station, and the 5G base station is in communication connection with the data sending module; the 5G antenna is used for receiving signals, the data receiving module is used for receiving data, the 5G base station is used for receiving, sending and processing information, and the data sending module is used for sending data;
the 5G base station comprises a base station activation module, a macro base station, a micro base station, a directional coupler, a communication transceiving module, an optical fiber communication module and a network calibration module;
a base station activation module for activating a corresponding base station to serve the 5G user;
the macro base station is connected with the optical fiber communication module and used for guaranteeing the continuity of signal coverage;
the micro base station comprises a plurality of antenna radiation modules, an antenna transceiver module is connected with a directional coupler, the directional coupler is connected with a communication transceiver module, and the communication transceiver module is connected with an optical fiber communication module; the signal of the antenna radiation module enters the communication transceiving module through the directional coupler, and the communication transceiving module transmits the signal to the optical fiber communication module;
the network calibration module is connected with the micro base station and is used for carrying out signal radiation monitoring, fault diagnosis and fault treatment on the antenna radiation module in the signal transmission process.
In an optional embodiment, the base station activation module includes a set establishment module, a calculation processing module, a judgment module, an activation submodule, and an update module; the set establishing module is used for establishing a set corresponding to the base station group; the calculation processing module is used for calculating the number of base stations which provide service for all users under the current condition; the judging module is used for judging the base stations which can provide service for the most users in the set; an activation submodule for activating the corresponding base station to access a maximum number of users without exceeding the available bandwidth; and an updating module for removing the selected active base stations from the set and simultaneously removing the users communicating therewith.
In an optional embodiment, the number of the directional couplers and the number of the communication transceiver modules are multiple, each directional coupler is connected with one communication transceiver module, the multiple directional couplers are connected in sequence and then connected to the network calibration module, so that the transceiving state information of the antenna radiation module of the micro base station is transmitted to the network calibration module, and the calibration network is connected with the optical fiber communication network.
In an optional embodiment, each communication transceiver module includes a downlink channel and an uplink channel; the downlink channel comprises a duplexer, a low noise amplifier, a radio frequency filter, an intermediate frequency receiver and a baseband signal receiver; the duplexer is connected with the directional coupler, the low-noise amplifier is connected with the duplexer and the radio frequency filter, the intermediate frequency receiver is connected with the radio frequency filter and the baseband signal receiver, and the output end of the baseband signal receiver is connected with the optical fiber communication network; the uplink channel comprises a baseband signal transmitter, a radio frequency power amplifier and a duplexer; the output end of the optical fiber communication network is connected with the input end of the baseband signal transmitter, the output end of the baseband signal transmitter is connected with the input end of the radio frequency signal transmitter, the output end of the radio frequency signal transmitter is connected with the input end of the radio frequency power amplifier, and the output end of the radio frequency power amplifier is connected with the input end of the duplexer.
In an alternative embodiment, the number of the 5G antennas is multiple, and the 5G antennas are distributed in a three-dimensional array.
In an optional embodiment, the 5G base station can further obtain the positioning information of the mobile intelligent terminal, calculate the position and motion status of the mobile intelligent terminal in the area according to the positioning data of the mobile intelligent terminal, know the number of the mobile intelligent terminals entering the serving cell, and meet the user requirements through corresponding adjustment; the adjustment method includes adjusting the power and the direction of the 5G antenna and the switch of each 5G base station.
In the invention, electromagnetic wave energy is concentrated in a specific direction, signal waste is reduced while receiving signals are enhanced, communication quality is obviously improved, baseband capacity can be shared, capacity expansion capacity is high, optical fibers are almost free of loss, and a coverage area and system capacity can be independently planned; the number of the base stations is minimum, so that the waste of resources is avoided, the activation time is reduced, and the using effect is better;
the invention improves the network capacity of the mobile communication system, greatly improves the frequency spectrum efficiency of the system area, reduces the hardware cost, greatly reduces the time delay and can provide a more energy-saving and intelligent wireless network.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. An intelligent 5G network system is characterized by comprising a server and a terminal;
the server is wirelessly connected with the terminal, the terminal sends the information to the server, the server sends the information of other terminals to the terminal, and the server allows each terminal to select other terminals for communication according to relevant characteristics;
the terminal comprises a 5G base station, a 5G antenna, a data receiving module and a data sending module; the 5G antenna signal is connected with the data receiving module, the data receiving module is connected with the 5G base station, and the 5G base station is in communication connection with the data sending module; the 5G antenna is used for receiving signals, the data receiving module is used for receiving data, the 5G base station is used for receiving, sending and processing information, and the data sending module is used for sending data;
the 5G base station comprises a base station activation module, a macro base station, a micro base station, a directional coupler, a communication transceiving module, an optical fiber communication module and a network calibration module;
a base station activation module for activating a corresponding base station to serve the 5G user;
the macro base station is connected with the optical fiber communication module and used for guaranteeing the continuity of signal coverage;
the micro base station comprises a plurality of antenna radiation modules, an antenna transceiver module is connected with a directional coupler, the directional coupler is connected with a communication transceiver module, and the communication transceiver module is connected with an optical fiber communication module; the signal of the antenna radiation module enters the communication transceiving module through the directional coupler, and the communication transceiving module transmits the signal to the optical fiber communication module;
the network calibration module is connected with the micro base station and is used for carrying out signal radiation monitoring, fault diagnosis and fault treatment on the antenna radiation module in the signal transmission process.
2. The intelligent 5G network system according to claim 1, wherein the base station activation module comprises a set establishment module, a calculation processing module, a judgment module, an activation sub-module and an update module;
the set establishing module is used for establishing a set corresponding to the base station group;
the calculation processing module is used for calculating the number of base stations which provide service for all users under the current condition;
the judging module is used for judging the base stations which can provide service for the most users in the set;
an activation submodule for activating the corresponding base station to access a maximum number of users without exceeding the available bandwidth;
and an updating module for removing the selected active base stations from the set and simultaneously removing the users communicating therewith.
3. The intelligent 5G network system according to claim 1, wherein the number of the directional couplers and the communication transceiver modules is plural, and each directional coupler is connected to one communication transceiver module, the plural directional couplers are connected to the network calibration module in sequence, so as to transmit the transceiver status information of the antenna radiation module of the micro base station to the network calibration module, and the calibration network is connected to the optical fiber communication network.
4. The intelligent 5G network system of claim 1, wherein each communication transceiver module comprises a downlink channel and an uplink channel.
5. The intelligent 5G network system according to claim 4, wherein the downstream channel includes a duplexer, a low noise amplifier, a radio frequency filter, an intermediate frequency receiver, and a baseband signal receiver; the duplexer is connected with the directional coupler, the low-noise amplifier is connected with the duplexer and the radio frequency filter, the intermediate frequency receiver is connected with the radio frequency filter and the baseband signal receiver, and the output end of the baseband signal receiver is connected with the optical fiber communication network.
6. The intelligent 5G network system according to claim 4, wherein the uplink channel comprises a baseband signal transmitter, a radio frequency power amplifier and a duplexer; the output end of the optical fiber communication network is connected with the input end of the baseband signal transmitter, the output end of the baseband signal transmitter is connected with the input end of the radio frequency signal transmitter, the output end of the radio frequency signal transmitter is connected with the input end of the radio frequency power amplifier, and the output end of the radio frequency power amplifier is connected with the input end of the duplexer.
7. The intelligent 5G network system of claim 1, wherein the number of the 5G antennas is plural, and the arrangement distribution of the 5G antennas is a three-dimensional array distribution.
8. The intelligent 5G network system according to claim 1, wherein the 5G base station is further capable of obtaining positioning information of the mobile intelligent terminals, calculating the position and movement status of the mobile intelligent terminals in the area according to the positioning data of the mobile intelligent terminals, knowing the number of the mobile intelligent terminals entering the serving cell, and adjusting accordingly to meet the user's needs.
9. The intelligent 5G network system of claim 8, wherein the adjustment comprises adjusting the power, orientation, and switching of each 5G antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143143.3A CN111343641A (en) | 2020-03-04 | 2020-03-04 | Intelligent 5G network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143143.3A CN111343641A (en) | 2020-03-04 | 2020-03-04 | Intelligent 5G network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111343641A true CN111343641A (en) | 2020-06-26 |
Family
ID=71187283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010143143.3A Pending CN111343641A (en) | 2020-03-04 | 2020-03-04 | Intelligent 5G network system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111343641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114253175A (en) * | 2021-11-08 | 2022-03-29 | 中国通信建设集团设计院有限公司第三分公司 | Safety joint defense system based on 5G communication network application |
| CN114390564A (en) * | 2022-02-14 | 2022-04-22 | 成都益为创达科技有限公司 | Network communication system and method for 5G communication base station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105592537A (en) * | 2016-02-29 | 2016-05-18 | 广州银禾网络通信有限公司 | 5G relay network energy saving method and system |
| CN106374983A (en) * | 2016-08-26 | 2017-02-01 | 四川天邑康和通信股份有限公司 | Large-scale antenna system based on 5G network |
| EP3160194A1 (en) * | 2015-10-21 | 2017-04-26 | Alcatel Lucent | Apparatuses, methods and computer programs for determining transmission control information |
| US20180167130A1 (en) * | 2016-12-08 | 2018-06-14 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
| CN110139219A (en) * | 2018-03-28 | 2019-08-16 | 杨铭域 | Wisdom 5G network system |
-
2020
- 2020-03-04 CN CN202010143143.3A patent/CN111343641A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3160194A1 (en) * | 2015-10-21 | 2017-04-26 | Alcatel Lucent | Apparatuses, methods and computer programs for determining transmission control information |
| CN105592537A (en) * | 2016-02-29 | 2016-05-18 | 广州银禾网络通信有限公司 | 5G relay network energy saving method and system |
| CN106374983A (en) * | 2016-08-26 | 2017-02-01 | 四川天邑康和通信股份有限公司 | Large-scale antenna system based on 5G network |
| US20180167130A1 (en) * | 2016-12-08 | 2018-06-14 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
| CN110139219A (en) * | 2018-03-28 | 2019-08-16 | 杨铭域 | Wisdom 5G network system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114253175A (en) * | 2021-11-08 | 2022-03-29 | 中国通信建设集团设计院有限公司第三分公司 | Safety joint defense system based on 5G communication network application |
| CN114390564A (en) * | 2022-02-14 | 2022-04-22 | 成都益为创达科技有限公司 | Network communication system and method for 5G communication base station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111343642B (en) | 5G signal radio frequency variable frequency distribution system | |
| US20040185794A1 (en) | Multi-sector in-building repeater | |
| JPH05122135A (en) | Micro base station, center base station and mobile communication equipment | |
| WO2002030141A1 (en) | Mobile base station system where the central unit and the antenna units are separated from each other | |
| CN105917732B (en) | Baseband processing unit, radio remote unit and communication method | |
| JP2007053768A (en) | Distributed antenna system and communication method thereof | |
| CN109698717B (en) | Networking method for common-frequency and simulcasting of relay station and relay station | |
| CN111343641A (en) | Intelligent 5G network system | |
| Artuso et al. | Cloudification of mmwave-based and packet-based fronthaul for future heterogeneous mobile networks | |
| KR100615419B1 (en) | Wireless communication system for increasing reverse link capacity | |
| CN111935730A (en) | Method and device for realizing signal coverage of distributed base station and base station network | |
| US8115677B2 (en) | Transmitter and receiver-side processing of signals transmitted or received with a smart antenna | |
| CN215300635U (en) | 5G base station coupling zoom-out system | |
| US20240088949A1 (en) | Distributed antenna system and signal transmission method | |
| CN215818638U (en) | Mine communication system based on multiple wireless module supports | |
| JP2000023241A (en) | Radio communication system | |
| CN210042233U (en) | 5G indoor covering equipment | |
| CN110839278B (en) | Indoor base station and positioning method | |
| CN113225132A (en) | 5G base station coupling zoom-out system | |
| CN104954071A (en) | LTE (long term evolution)-Advanced full-digital optical fiber relay system and implementation method thereof | |
| CN110730012A (en) | Synchronous wave beam selection device in ad hoc network | |
| CN101420260B (en) | Radio electric device node, distributed radio communication base station and communication method therefor | |
| CN111756623A (en) | Communication gateway device | |
| CN215990809U (en) | High-frequency optical fiber extension type signal coverage system | |
| CN210958410U (en) | Simulation system |
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: 20200626 |
|
| RJ01 | Rejection of invention patent application after publication |