CN106658466A - Beidou-based high frequency information communication system and method - Google Patents
Beidou-based high frequency information communication system and method Download PDFInfo
- Publication number
- CN106658466A CN106658466A CN201610954324.8A CN201610954324A CN106658466A CN 106658466 A CN106658466 A CN 106658466A CN 201610954324 A CN201610954324 A CN 201610954324A CN 106658466 A CN106658466 A CN 106658466A
- Authority
- CN
- China
- Prior art keywords
- sim
- dispatcher
- big dipper
- array
- central control
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/183—Processing at user equipment or user record carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
-
- 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)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Astronomy & Astrophysics (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a Beidou-based high frequency information communication system. The system is characterized by comprising a Beidou communicator, a central control processor, a power module, an SIM card dispatcher and an SIM card array, wherein the central control processor, the Beidou communicator, the SIM card dispatcher and the SIM card array are directly connected with each other; the Beidou communicator and the central control processor are connected with the power module respectively. The central control processor dispatches a plurality of Beidou SIM cards to sequentially connect the Beidou communicator within short time, and the Beidou communicator acquires authorization information of the SIM cards and then sends the queued information out in sequence, thereby fulfilling the purpose of sending a large amount of information within short time.
Description
Technical field
The present invention relates to satellite communication field technical field, especially a kind of frequent information communication system based on the Big Dipper
And method.
Background technology
The Beidou satellite navigation system of China compared with the GPS system in the U.S., RDSS services, i.e. radio determination industry more
Business.RDSS services allow authorized user to carry out active location and short message communication.
The short message communication of the Big Dipper is that authorized user is opened, and authorized user needs to obtain Big Dipper SIM, every SIM
Card defines the authorized user and carries out communication, levels (data volume for sending every time), the frequency (time of communication of short message communication
Interval), whether encrypt the information such as user.The Big Dipper SIM that domestic consumer can take is usually three-level card and (is less than
78.5Byte), frequency is not less than 60s.
The short message communication service of the Big Dipper itself because processing speed and user are bound the reason for sum, to authorized user's
Frequency and communication, levels have carried out more harsh restriction.High-grade, frequent Big Dipper SIM is expected very by domestic consumer
Difficulty, this is resulted in user and the long-distance transmissions of larger data cannot be carried out by Big Dipper short message communication business.And current
In the case of, select the cost of international communication transmission data again very it is high.
The content of the invention
The purpose of the present invention is primarily to solve that Big Dipper short message communication business single amount of communication data is little, commitment defini interval
The problem of time length, the present invention provides a kind of frequent information communication system and method based on the Big Dipper.
The technical scheme is that：
A kind of frequent information communication system based on the Big Dipper, including Beidou communication machine, central control processor, power supply mould
Block, SIM dispatcher and SIM array, central control processor, Beidou communication machine, SIM dispatcher and SIM array three
Person is directly connected to each other, and Beidou communication machine and central control processor are also connected with power module respectively；Wherein, Beidou communication machine
It is sequentially connected and is constituted by Big Dipper RDSS dual-mode antennas, Big Dipper RDSS radio frequency transceivers, Big Dipper RDSS BBP；Central authorities' control
Processor be responsible for control SIM dispatcher, control Beidou communication machine, to need send data carry out subpackage process, to receiving
Data recombinated；SIM dispatcher and SIM array realize that frequent information communicates.
The core of the SIM dispatcher in the SIM dispatcher and SIM array is two piece of 4 line decoder of line -16,
Model CD4514B；Central control processor exports the control code of 5, and the control signal of 32, control are produced after decoder
Two SIM arrays of system, reach the purpose of only SIM card gating every time；Meanwhile, by switching different control code letters
Number communicate with Big Dipper RDSS BBPs gating different SIMs；Pass through between SIM array and SIM dispatcher
SIM protects chip to gate and protect.
Chip is protected to gate and protect by SIM between the SIM array and SIM dispatcher, SIM is protected
Model LTC4555 of shield chip,；When LTC4555 chipsWhen pin is high level, its RIN pin and RST pin
Conducting, CIN pins are turned on CLK pin, and DATA pins are turned on I/O pins；Conversely, working asFor low level when, it is above-mentioned
Three disconnect；I.e. the chip is actually a bus switch, control Big Dipper RDSS BBPs and SIM array it
Between break-make,The output for connecing decoder ensures that every time an only SIM card is strobed.
The SIM dispatcher and SIM array are extendable to 48 cards or 64 cards, if necessary even can be with
Extension is more, the I/O mouths without taking many central control processors；And synchronization on SIM signal bus only
There is a SIM card.
A kind of frequent information communication system method based on the Big Dipper, comprises the following steps：
1) set up based on the frequent information communication system of the Big Dipper：The frequent information communication system bag based on the Big Dipper
Include Beidou communication machine, central control processor, power module, SIM dispatcher and SIM array, central control processor, north
Bucket communication equipment, SIM dispatcher and SIM array three are directly connected to each other, and Beidou communication machine and central control processor are also
It is connected with power module respectively；Wherein, Beidou communication machine is by Big Dipper RDSS dual-mode antennas, Big Dipper RDSS radio frequency transceivers, the Big Dipper
RDSS BBPs are sequentially connected composition；Central control processor be responsible for control SIM dispatcher, control Beidou communication machine,
Data to needing to send carry out subpackage process, the data to receiving and recombinate；SIM dispatcher and SIM array are realized
Frequent information communicates；
2) scheduling of SIM dispatcher and the SIM in SIM array is realized：In SIM dispatcher and SIM array
The core of SIM dispatcher be two piece of 4 line decoder of line -16, model CD4514B；Central control processor exports 5
Control code, produces the control signal of 32 after decoder, controls two SIM arrays, reaches an only SIM card every time
The purpose of gating；Meanwhile, gate different SIMs and Big Dipper RDSS Base-Band Processings by switching different control code signals
Device communicates；Chip is protected to gate and protect by SIM between SIM array and SIM dispatcher；
3) gating and the protection of SIM dispatcher and the SIM in SIM array are realized：SIM array is adjusted with SIM
Chip is protected to gate and protect by SIM between degree machine, SIM protects model LTC4555 of chip,；When
LTC4555 chipsWhen pin is high level, its RIN pin is turned on RST pin, and CIN pins are led with CLK pin
Logical, DATA pins are turned on I/O pins；Conversely, working asFor low level when, above three disconnects；That is the chip reality
On be a bus switch, control the break-make between Big Dipper RDSS BBPs and SIM array,Connect decoding
The output of device ensures that every time an only SIM card is strobed；
4) extension of SIM dispatcher and SIM：SIM dispatcher and SIM array are extendable to 48 cards or 64
Zhang Ka, can even extend if necessary more I/O mouths without taking many central control processors；And it is same
Moment only has a SIM card on SIM signal bus.
The invention has the beneficial effects as follows：
The present invention dispatches multiple Big Dipper SIMs and is sequentially connected Beidou communication at short notice using central control processor
Machine, successively sends the information of queuing after the authorization message of each SIM card of Beidou communication machine acquirement, and this has just been reached short
The purpose of relatively large information is sent in time.
The SIM dispatcher and SIM array of framework of the present invention can be extended to 48 cards or 64 cards, if needing
More I/O mouths without taking many central control processors can even be extended.And synchronization is believed in SIM
An only SIM card, can also reduce the requirement to Big Dipper RDSS BBP carrying load abilities in number bus.Meanwhile, SIM
Protect chip to protect the SIM of costliness simultaneously, reduce because the possible caused SIM of bus signals crosstalk is damaged.
Description of the drawings
Fig. 1 is a kind of circuit block diagram of frequent information communication system based on the Big Dipper of the present invention.
Fig. 2 is the circuit theory diagrams that the SIM of the present invention protects chip.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described：
Embodiment one.
As shown in Figure 1, Figure 2, hardware components of the invention mainly by Beidou communication machine, central control processor, power module,
SIM dispatcher and SIM array are constituted, and circuit block diagram refers to Fig. 1.
Wherein, Beidou communication machine is by Big Dipper RDSS dual-mode antennas, Big Dipper RDSS radio frequency transceivers, Big Dipper RDSS Base-Band Processings
Device is constituted.
Central control processor is core cell, it is main be responsible for control SIM dispatcher, control Beidou communication machine, to needing
The data to be sent carry out subpackage process, the data to receiving and recombinate etc..SIM dispatcher and SIM array are to realize
The hardware necessary condition of frequent information communication, is the main hardware part of present invention.
The core of SIM dispatcher is two piece of 4 line decoder of line -16, model CD4514B.Central control processor is defeated
Go out the control code of 5, the control signal of 32 is produced after decoder, control two SIM arrays, reach and only have every time one
The purpose of SIM card gating.Meanwhile, gate different SIMs and Big Dipper RDSS bases by switching different control code signals
Provided with processor communicates.Chip is protected to gate and protect by SIM between SIM array and SIM dispatcher.
Chip is protected to gate and protect by SIM between SIM array and SIM dispatcher, SIM protection core
Model LTC4555 of piece, its circuit theory diagrams are shown in Fig. 2.When LTC4555 chipsWhen pin is high level, its
RIN pins are turned on RST pin, and CIN pins are turned on CLK pin, and DATA pins are turned on I/O pins；Conversely, working as
For low level when, above three disconnects；I.e. the chip is actually a bus switch, controls CONTROLLER (here
For Big Dipper RDSS BBPs) and the break-make between SIM/SMART CARD INTERFACE (being here SIM array),The output for connecing decoder ensures that every time an only SIM card is strobed.
Embodiment two.
A kind of frequent information communication system method based on the Big Dipper, comprises the following steps：
1) set up based on the frequent information communication system of the Big Dipper：The frequent information communication system bag based on the Big Dipper
Include Beidou communication machine, central control processor, power module, SIM dispatcher and SIM array, central control processor, north
Bucket communication equipment, SIM dispatcher and SIM array three are directly connected to each other, and Beidou communication machine and central control processor are also
It is connected with power module respectively；Wherein, Beidou communication machine is by Big Dipper RDSS dual-mode antennas, Big Dipper RDSS radio frequency transceivers, the Big Dipper
RDSS BBPs are sequentially connected composition；Central control processor be responsible for control SIM dispatcher, control Beidou communication machine,
Data to needing to send carry out subpackage process, the data to receiving and recombinate；SIM dispatcher and SIM array are realized
Frequent information communicates；
2) scheduling of SIM dispatcher and the SIM in SIM array is realized：In SIM dispatcher and SIM array
The core of SIM dispatcher be two piece of 4 line decoder of line -16, model CD4514B；Central control processor exports 5
Control code, produces the control signal of 32 after decoder, controls two SIM arrays, reaches an only SIM card every time
The purpose of gating；Meanwhile, gate different SIMs and Big Dipper RDSS Base-Band Processings by switching different control code signals
Device communicates；Chip is protected to gate and protect by SIM between SIM array and SIM dispatcher；
3) gating and the protection of SIM dispatcher and the SIM in SIM array are realized：SIM array is adjusted with SIM
Chip is protected to gate and protect by SIM between degree machine, SIM protects model LTC4555 of chip,；When
LTC4555 chipsWhen pin is high level, its RIN pin is turned on RST pin, and CIN pins are turned on CLK pin,
DATA pins are turned on I/O pins；Conversely, working asFor low level when, above three disconnects；I.e. the chip is actually
It is a bus switch, controls the break-make between Big Dipper RDSS BBPs and SIM array,Connect decoder
Output ensure that every time only a SIM card is strobed；
4) extension of SIM dispatcher and SIM：SIM dispatcher and SIM array are extendable to 48 cards or 64
Zhang Ka, can even extend if necessary more I/O mouths without taking many central control processors；And it is same
Moment only has a SIM card on SIM signal bus.
The SIM dispatcher and SIM array of this framework can be extended to 48 cards or 64 cards, if necessary
More I/O mouths without taking many central control processors can even be extended.And synchronization is in SIM signal
There was only a SIM card in bus, can also reduce the requirement to Big Dipper RDSS BBP carrying load abilities.Meanwhile, SIM is protected
Protecting chip can also protect the SIM of costliness simultaneously, reduce because the possible caused SIM of bus signals crosstalk is damaged.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the structure of the present invention
Think and scope is defined, under the premise of without departing from design concept of the present invention, ordinary skill technical staff is to this in this area
Various modifications and improvement that bright technical scheme is made, all should fall into protection scope of the present invention, the skill that the present invention is claimed
Art content has all been recorded in detail in the claims.
Claims (5)
1. a kind of frequent information communication system based on the Big Dipper, it is characterized in that including Beidou communication machine, central control processor,
Power module, SIM dispatcher and SIM array, central control processor, Beidou communication machine, SIM dispatcher and SIM
Array three be directly connected to each other, and Beidou communication machine and central control processor are also connected with power module respectively；Wherein, the Big Dipper
Communication equipment is sequentially connected and is constituted by Big Dipper RDSS dual-mode antennas, Big Dipper RDSS radio frequency transceivers, Big Dipper RDSS BBPs；In
Centre control process device be responsible for control SIM dispatcher, control Beidou communication machine, to need send data carry out subpackage process,
Data to receiving are recombinated；SIM dispatcher and SIM array realize that frequent information communicates.
2. a kind of frequent information communication system based on the Big Dipper according to claim 1, it is characterised in that the SIM
The core of the SIM dispatcher in dispatcher and SIM array is two piece of 4 line decoder of line -16, model CD4514B；Central authorities
Control process device exports the control code of 5, and the control signal of 32 is produced after decoder, controls two SIM arrays, reaches
To the purpose of only SIM card gating every time；Meanwhile, gate different SIMs by switching different control code signals
Communicate with Big Dipper RDSS BBPs；Chip is protected to gate by SIM between SIM array and SIM dispatcher
And protection.
3. a kind of frequent information communication system based on the Big Dipper according to claim 1, it is characterised in that the SIM
Chip is protected to gate and protect by SIM between array and SIM dispatcher, SIM protects the model of chip
LTC4555,；When LTC4555 chipsWhen pin is high level, its RIN pin and RST pin are turned on, CIN pins with
CLK pin is turned on, and DATA pins are turned on I/O pins；Conversely, working asFor low level when, above three disconnects；I.e.
The chip is actually a bus switch, controls the break-make between Big Dipper RDSS BBPs and SIM array,The output for connecing decoder ensures that every time an only SIM card is strobed.
4. a kind of frequent information communication system based on the Big Dipper according to claim 1, it is characterised in that the SIM
Dispatcher and SIM array are extendable to 48 cards or 64 cards, even can extend if necessary it is more, without
Take the I/O mouths of many central control processors；And synchronization only has a SIM card on SIM signal bus.
5. a kind of frequent information communication system method based on the Big Dipper, is characterized in that comprising the following steps：
1) set up based on the frequent information communication system of the Big Dipper：The frequent information communication system based on the Big Dipper includes north
Bucket communication equipment, central control processor, power module, SIM dispatcher and SIM array, central control processor, the Big Dipper lead to
Letter machine, SIM dispatcher and SIM array three are directly connected to each other, and Beidou communication machine and central control processor are also distinguished
It is connected with power module；Wherein, Beidou communication machine is by Big Dipper RDSS dual-mode antennas, Big Dipper RDSS radio frequency transceivers, Big Dipper RDSS
BBP is sequentially connected composition；Central control processor be responsible for control SIM dispatcher, control Beidou communication machine, to need
The data to be sent carry out subpackage process, the data to receiving and recombinate；SIM dispatcher and SIM array realize high frequency
Degree information communicates；
2) scheduling of SIM dispatcher and the SIM in SIM array is realized：SIM in SIM dispatcher and SIM array
The core of card dispatcher is two piece of 4 line decoder of line -16, model CD4514B；Central control processor exports the control of 5
Code, produces the control signal of 32 after decoder, controls two SIM arrays, reaches only SIM card gating every time
Purpose；Meanwhile, different SIMs are gated by switching different control code signals and is led to Big Dipper RDSS BBPs
Letter；Chip is protected to gate and protect by SIM between SIM array and SIM dispatcher；
3) gating and the protection of SIM dispatcher and the SIM in SIM array are realized：SIM array and SIM dispatcher
Between protect chip gating and protect by SIM, SIM protects model LTC4555 of chip,；When LTC4555 cores
PieceWhen pin is high level, its RIN pin is turned on RST pin, and CIN pins are turned on CLK pin, DATA pins
With the conducting of I/O pins；Conversely, working asFor low level when, above three disconnects；I.e. the chip is actually one always
Wiretap, controls the break-make between Big Dipper RDSS BBPs and SIM array,The output for connecing decoder is protected
Every time an only SIM card is strobed card；
4) extension of SIM dispatcher and SIM：SIM dispatcher and SIM array are extendable to 48 cards or 64
Card, can even extend if necessary more I/O mouths without taking many central control processors；And with for the moment
It is engraved on SIM signal bus and there was only a SIM card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954324.8A CN106658466B (en) | 2016-11-03 | 2016-11-03 | Beidou-based high-frequency information communication system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954324.8A CN106658466B (en) | 2016-11-03 | 2016-11-03 | Beidou-based high-frequency information communication system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106658466A true CN106658466A (en) | 2017-05-10 |
| CN106658466B CN106658466B (en) | 2023-05-05 |
Family
ID=58821524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610954324.8A Active CN106658466B (en) | 2016-11-03 | 2016-11-03 | Beidou-based high-frequency information communication system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106658466B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004999A (en) * | 2018-10-22 | 2018-12-14 | 成都共同进步信息技术有限公司 | A kind of interior wisdom ecology broadcast platform equipment |
| CN109143285A (en) * | 2017-06-27 | 2019-01-04 | 航天恒星科技有限公司 | Positioning reporting chain applied to the changeable high dynamic target of posture |
| CN110212937A (en) * | 2019-05-21 | 2019-09-06 | 中国科学院海洋研究所 | Low-power consumption mould group based on single Beidou module multibard data transmission mode |
| CN113038390A (en) * | 2019-12-25 | 2021-06-25 | 海鹰航空通用装备有限责任公司 | Communication method and device of Beidou short message terminal and Beidou short message terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270188A (en) * | 2013-12-11 | 2015-01-07 | 北京华力创通科技股份有限公司 | Beidou satellite communication equipment |
| CN105824034A (en) * | 2016-05-12 | 2016-08-03 | 江苏星宇芯联电子科技有限公司 | Multi-card supporting Beidou Bluetooth voice communication system |
-
2016
- 2016-11-03 CN CN201610954324.8A patent/CN106658466B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270188A (en) * | 2013-12-11 | 2015-01-07 | 北京华力创通科技股份有限公司 | Beidou satellite communication equipment |
| CN105824034A (en) * | 2016-05-12 | 2016-08-03 | 江苏星宇芯联电子科技有限公司 | Multi-card supporting Beidou Bluetooth voice communication system |
Non-Patent Citations (1)
| Title |
|---|
| 文斌等: "多SIM卡复用的"北斗"通信终端设计", 《电讯技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143285A (en) * | 2017-06-27 | 2019-01-04 | 航天恒星科技有限公司 | Positioning reporting chain applied to the changeable high dynamic target of posture |
| CN109143285B (en) * | 2017-06-27 | 2022-05-24 | 航天恒星科技有限公司 | Positioning reporting system applied to attitude multi-variable dynamic target |
| CN109004999A (en) * | 2018-10-22 | 2018-12-14 | 成都共同进步信息技术有限公司 | A kind of interior wisdom ecology broadcast platform equipment |
| CN110212937A (en) * | 2019-05-21 | 2019-09-06 | 中国科学院海洋研究所 | Low-power consumption mould group based on single Beidou module multibard data transmission mode |
| CN113038390A (en) * | 2019-12-25 | 2021-06-25 | 海鹰航空通用装备有限责任公司 | Communication method and device of Beidou short message terminal and Beidou short message terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106658466B (en) | 2023-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106658466A (en) | Beidou-based high frequency information communication system and method | |
| CN105893304B (en) | A kind of terminal and its implementation for supporting double network data transmission | |
| CN103731889B (en) | Realize the method and device of mobile terminal dual-card dual-standby dual-pass | |
| CN106412150A (en) | Terminal and terminal communication method | |
| CN207427486U (en) | A kind of network switching circuit of multimode multi-frequency | |
| CN104581719A (en) | Method and system for conducting communication authority management on mobile terminal | |
| CN104247530B (en) | For the circuit arrangement structure of the mobile communication equipment of automobile, the method for operating mobile communication equipment and the chip card for mobile communication equipment | |
| CN106656250A (en) | Radio frequency circuit, terminal and radio frequency circuit control method | |
| CN107046731A (en) | Electronic equipment and wireless communications method in wireless communication system | |
| CN110224706A (en) | Radio circuit and electronic equipment | |
| CN104618890B (en) | A kind of information processing method and electronic equipment | |
| CN102832961A (en) | Multi-band signal transceiving device | |
| CN205793375U (en) | A kind of roaming LTE terminal based on virtual SIM card technology | |
| CN206517616U (en) | A kind of frequent information communication system based on the Big Dipper | |
| CN203181051U (en) | Multi-functional handheld interphone capable of communicating by networking | |
| CN107948957A (en) | A kind of control system of Big Dipper terminal for Big Dipper short message transmitting | |
| CN105676248B (en) | A kind of safe Beidou navigation chip and its application method | |
| CN202503533U (en) | Network monitoring device based on WLAN (wireless local area network) technology | |
| CN206674203U (en) | A kind of enhanced WiFi wireless signal acquirings device | |
| CN202565377U (en) | Double-frequency video camera | |
| CN206135891U (en) | Multi -functional single alert law enforcement appearance | |
| CN201903885U (en) | Reader mainframe, extension sets and reading system for second-generation ID cards | |
| CN201467448U (en) | Police moving switch-in device with functions of locating and communicating | |
| CN107889165A (en) | Mobile substation free wireless public LTE network scheduling termination high-speed communication system and method | |
| CN107889191A (en) | Connection method, device, equipment and the computer-readable recording medium of WLAN |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |