CN113347624B - Public network blind-patching commanding and dispatching terminal - Google Patents

Public network blind-patching commanding and dispatching terminal Download PDF

Info

Publication number
CN113347624B
CN113347624B CN202110560083.XA CN202110560083A CN113347624B CN 113347624 B CN113347624 B CN 113347624B CN 202110560083 A CN202110560083 A CN 202110560083A CN 113347624 B CN113347624 B CN 113347624B
Authority
CN
China
Prior art keywords
cqi
network
mesh
public network
communication
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.)
Active
Application number
CN202110560083.XA
Other languages
Chinese (zh)
Other versions
CN113347624A (en
Inventor
喻刚
杜光
槐雨
邱华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Putian Communication Co ltd
Original Assignee
Putian Communication Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Putian Communication Co ltd filed Critical Putian Communication Co ltd
Priority to CN202110560083.XA priority Critical patent/CN113347624B/en
Publication of CN113347624A publication Critical patent/CN113347624A/en
Application granted granted Critical
Publication of CN113347624B publication Critical patent/CN113347624B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security

Abstract

The invention provides a command scheduling terminal based on public network blind compensation, and belongs to the technical field of network security. The method comprises the steps of evaluating the quality of network signals directly connected between a terminal and a base station under a public network environment to obtain a CQI value; evaluating the transmission quality of the MESH data to obtain a normalized value of Tb; when a terminal CQI is smaller than a preset threshold value, awakening a MESH ad hoc network strategy which can be connected with the terminal in the area, counting CQI values of the terminals participating in ad hoc network nodes, and performing networking strategy operation by using the CQI values and a CQIMax value of the terminal with the strongest signal; and judging the normalized values of the CQI and the Tb, selecting different communication strategies, encrypting and decrypting the input and output data of the specified bus interface, encrypting and decrypting the data by hardware in a data receiving and transmitting link of a communication unit, wherein the encryption and decryption process is not controlled by an OS layer, and the data interaction with the general equipment under the non-private network environment is cut off.

Description

Commanding and dispatching terminal for public network blind compensation
Technical Field
The invention relates to the technical field of network security, in particular to a command and dispatch terminal for public network blind area compensation.
Background
The dispatching and commanding service has extremely high requirements on safety and controllability. The communication and data need to be kept secret from the outside, the network needs to have extremely strong security guarantee, and the network also needs to be managed and controlled, so that the high-priority user is allowed to access the network preferentially. Only with the use of independent network facilities, physically isolated from other networks, can 100% security be achieved. It is currently the only option for scheduling and directing traffic to use private network communications for security reasons.
Private network communication is wireless network communication services such as emergency communication, command scheduling, daily work communication and the like provided for governments and public safety, utilities, industrial and commercial industries and the like, and refers to a communication network which is built in some industries, departments or units and is used for meeting the requirements of organization and management, safe production, scheduling and commanding and the like. With the rapid development of domestic communication industry in recent years, the network scale of private network communication is rapidly increased, the technical level and the public network basically keep synchronous development, and the private network communication network gradually becomes a preferred mode for industry communication guarantee.
However, network coverage of private network communication has limitations, and a terminal device capable of realizing secure communication through a public network is urgently needed as a supplement for an area which cannot be covered by private network signals. Most of current dispatching command terminal equipment are equipment with a private network communication module independently, or are provided with a public network and a private network dual communication module, but the public network communication module is designed to be the same as general equipment, so that data intercommunication between the private network equipment and the public network general equipment cannot be avoided from hardware, physical isolation cannot be realized, and safety risks exist.
The prior art has at least the following disadvantages:
1. the design of the public network communication module is the same as that of general equipment, so that data intercommunication between special network equipment and the general equipment of the public network cannot be avoided on hardware, physical isolation cannot be realized, and safety risks exist.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a public network blind-patching commanding and scheduling terminal, which evaluates the quality of network signals directly connected between the terminal and a base station in a public network environment to obtain CQI and a normalization value thereof; evaluating the transmission quality of the MESH data to obtain Tb and a normalized value thereof; normalized CQI when there is terminal<When CQI _1 is adopted, CQI _1 is a preset threshold value, the MESH ad hoc network strategy of the connectable terminal in the area is awakened, the CQI value of the terminal participating in the ad hoc network node is counted, and the CQI value and the CQI of the terminal with the strongest signal are utilizedMaxCarrying out networking strategy operation on the value; and the data is encrypted and decrypted in a data receiving and transmitting link of the WIFI communication module, the Bluetooth communication module, the MESH module and the public network communication module, the encryption and decryption processes are not controlled by an OS layer, and the data interaction with the general equipment under the non-private network environment is cut off.
The invention provides a command scheduling terminal for public network blind compensation, which comprises a main control unit, an encryption unit and a communication unit;
the communication unit comprises a network signal quality evaluation module, a public network communication module, a WIFI communication module, a Bluetooth communication module, an MESH module and a private network communication module, wherein the MESH is a wireless MESH network;
the main control unit is connected with a private network communication module, an LTE-TDD mode is adopted, and the working frequency Band comprises Band61:1447MHz-1467MHz and Band62:1785MHz-1805 MHz;
the output end of the encryption unit is connected with the public network communication module, the output end of the encryption unit is connected with the WIFI communication module, the output end of the encryption unit is connected with the Bluetooth communication module, and the output end of the encryption unit is connected with the MESH communication module;
the network signal quality evaluation module performs the following operations:
broadcasting the CQI in the MESH network;
when a public network is started, UE measurement and CQI estimation are carried out, CQI and Tb values are counted and normalized, the CQI is a channel quality indicator, the Tb is a block error rate of data sent by blocks under a MESH environment, and the block error rate is used as a signal quality evaluation standard;
selecting different communication strategies according to the difference that the normalized values Tb' of the CQI and Tb fall into the range;
the encryption unit comprises a high-speed encryption and decryption module, and executes the following operations aiming at the transceiving data of wifi, Bluetooth or public network:
the high-speed encryption and decryption module encrypts and decrypts data by adopting an encryption and decryption algorithm; the encryption and decryption algorithm comprises at least one of the following algorithms: DES/3DES algorithm, ES128, AES192, AES256 algorithm, RSA1024bit-2048bit algorithm and ECC algorithm;
and sending the encrypted data to a base station or a terminal, wherein the adopted communication mode comprises the following communication modes: wifi, bluetooth or public network;
the public network communication module supports 2G, 3G and TDD mode 4G communication standards.
Preferably, the network signal quality evaluation module specifically performs the following operations:
when the CQI of the private network link is lower than a preset threshold or communication cannot be performed, public network communication is started;
evaluating the quality of network signals directly connected between a terminal and a base station under a public network environment to obtain a CQI value, and normalizing;
evaluating the data transmission quality under the MESH environment, taking the block error rate of the data sent by blocks under the MESH environment as a signal quality evaluation standard, and normalizing the block error rate to obtain a normalized value of Tb;
and selecting different communication strategies according to the difference that the normalized CQI value CQI 'and the normalized value Tb' of the terminal fall into the range.
Preferably, the communication policy comprises: the MESH ad hoc network, the public network direct connection and the public network direct connection are cascaded with the MESH ad hoc network.
Preferably, the normalized CQI value CQI' is obtained by: CQI 15/CQIMaxWherein CQI is an estimated CQI value, CQIMaxIs the maximum of the estimated CQI values; tb values were normalized as follows: tb ═ 15 (Tb-Tb)Min)/(TbMax-TbMin) Wherein Tb' is the normalized value of error block rate Tb, Tb is error block rate Tb, TbMinFor minimum block error rate, TbMaxThe maximum block error rate.
Preferably, according to the difference that the normalized CQI value CQI 'of the terminal and the normalized value Tb' of Tb fall into different ranges, selecting different communication strategies specifically includes: when CQI 'is less than CQI _1, a MESH ad hoc network strategy is adopted, and the CQI value of the terminal participating in the MESH ad hoc network node and the normalized CQI' are counted; when CQI _1< CQI' < ═ CQI _2 and Tb < Tb _1, a public network direct connection strategy is adopted; when CQI' is less than CQI _2 and Tb _1 is less than Tb, adopting a MESH ad hoc network strategy; when CQI _2< CQI' < ═ CQI _5 and Tb < ═ Tb _2, adopting a public network direct connection strategy; when CQI _2< CQI' < CQI _3 and Tb _2< ═ Tb < Tb _4, adopting a MESH ad hoc network strategy; and when CQI _3< CQI' < CQI _5 and Tb _2< Tb, adopting a public network direct connection and MESH ad hoc network cascade strategy.
Preferably, CQI _1 is 2.5, CQI _2 is 5, CQI _3 is 7.5, and CQI _5 is 15; tb _1 was 5, Tb _2 was 7.5, and Tb _4 was 15.
Preferably, the data entering and exiting the designated bus interface are encrypted and decrypted, and when the data of the WIFI communication module, the Bluetooth communication module, the MESH module and the public network communication module are received and transmitted, the data are encrypted and decrypted through hardware.
Preferably, the public network communication module supports GSM, WCDMA, TD-SCDMA and TD-LTE communication network systems; the WIFI communication module supports an 802.11a/b/g/n/ac protocol and supports 2x 2Wi-Fi MIMO; the Bluetooth communication module supports Bluetooth 4.0 and Bluetooth 5.0 standards; the MESH module common-frequency broadband network supports 8-hop relay at most, the MESH module supports the network scale that the single frequency is not lower than 32 nodes, and the direct communication can be realized within the distance of 2KM under the common-view environment.
Preferably, data is transmitted in clear text between private network access devices; in public network, MESH, Bluetooth and WIFI communication, data are encrypted and decrypted by hardware.
Preferably, the public network communication module supports the following standards and characteristics:
3GPP Release 12；
the lowest supported TDD (time division duplex)/FDD (frequency division duplex) LTE Category (terminal capability class) 7, DL (downlink) maximum transmission rate 300Mbps, UL (uplink) maximum transmission rate 100 Mbps;
supporting TDD/FDD LTE Category13 UL 150Mbps, Category 7 DL 300 Mbps;
supporting DL: 2-layer MIMO, the 2-layer MIMO comprising 2x2MIMO, 4x2MIMO, and 8x2 MIMO;
supporting UL64QAM and DL 64 QAM;
support 2CA (carrier aggregation) within and between DL bands;
support continuous 2CA (carrier aggregation) within and between UL bands;
supporting FDD CA (carrier aggregation) and TDD CA (carrier aggregation);
support VoLTE (Voice over Long-Term Evolution Voice over LTE);
support short DRX (discontinuous reception), long DRX and DRX under connection state;
support TTI Bundling (Transmission Time Interval Bundling) and SPS (Semi-Persistent Scheduling);
support security algorithms EEA1/EIA1 SNOW-3G, EEA2/EIA2 AES, EEA3/EIA3 ZUC.
Preferably, the private network communication module supports the following features:
the working frequency band comprises TDD 1.8G and TDD 1.4G, and the supported working bandwidth comprises 5MHz, 10MHz and 20 MHz; the maximum transmitting power is 27dBm, and the highest receiving sensitivity is-94 dBm;
modulation mode: both uplink and downlink support QPSK, 16QAM and 64 QAM; capacity rating greater than Category 4;
the military TF card encryption is supported;
supporting an audio and video transmission function;
support voice cluster functions;
the power consumption in the normal working state is less than or equal to 600mW, and the power consumption in the dormant state is less than or equal to 35 mW.
Preferably, the encrypted data is not reproducible from the OS layer;
preferably, an external interface is further included, the external interface including: USB2.0, OTG (Type-C), Audio-in, SKU 16Pin standard interface and magnetism inhale the mouth that charges.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention selects different communication modes according to the fact that the normalized CQI and Tb fall into different ranges, effectively solves the contradiction between the coverage range limitation of a private network and the potential safety hazard of public network data, and expands the use scene and range of users.
2. According to the invention, through the network signal quality evaluation module, a network strategy is selected in a self-adaptive manner, so that the requirement of user intervention operation in a public network environment is reduced to the greatest extent, and the MESH communication is performed in a self-adaptive manner on the areas (underground space, super high-rise space and the like) which can not be covered by public network signals, so that the MESH multi-hop cascade and the public network direct connection play a role in fusion complementation and multiple guarantee.
3. The high-speed encryption and decryption module adopts a 32-bit encryption chip, a main stream encryption algorithm can reach 32MB/s when the encryption strength is 128 bits, the real-time audio and video communication bandwidth requirement can be met, the encryption and decryption are carried out on the input and output data of specified SDIO and USB bus interfaces, the hardware encryption and decryption are further carried out on the data in the data receiving and sending links of WIFI, Bluetooth, MESH and public network communication modules, the encryption and decryption processes are not controlled by an OS layer, and the data interaction between the high-speed encryption and decryption module and general equipment under the non-private network environment is cut off.
Drawings
Fig. 1 is a block diagram of a command scheduling terminal for public network blind compensation according to an embodiment of the present invention;
fig. 2 is a schematic diagram of determining a communication policy according to normalized values of normalized CQI and Tb according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings 1-2.
The invention provides a command scheduling terminal for public network blind compensation, which comprises a main control unit, an encryption unit and a communication unit;
the communication unit comprises a network signal quality evaluation module, a public network communication module, a WIFI communication module, a Bluetooth communication module, an MESH module and a private network communication module, wherein the MESH is a wireless MESH network;
the main control unit is connected with a private network communication module, an LTE-TDD mode is adopted, and the working frequency Band comprises Band61:1447MHz-1467MHz and Band62:1785MHz-1805 MHz;
the output end of the encryption unit is connected with the public network communication module, the output end of the encryption unit is connected with the WIFI communication module, the output end of the encryption unit is connected with the Bluetooth communication module, and the output end of the encryption unit is connected with the MESH communication module;
the network signal quality evaluation module performs the following operations:
broadcasting the CQI in the MESH network;
when a public network is started, UE measurement and CQI estimation are carried out, CQI and Tb values are counted and normalized, the CQI is a channel quality indicator, the Tb is a block error rate of data sent by blocks under a MESH environment, and the block error rate is used as a signal quality evaluation standard;
selecting different communication strategies according to the difference that the normalized values Tb' of the CQI and Tb fall into the range;
the encryption unit comprises a high-speed encryption and decryption module, and executes the following operations aiming at the transceiving data of wifi, Bluetooth or public network:
the high-speed encryption and decryption module encrypts and decrypts data by adopting an encryption and decryption algorithm; the encryption and decryption algorithm comprises at least one of the following algorithms: DES/3DES algorithm, ES128, AES192, AES256 algorithm, RSA1024bit-2048bit algorithm and ECC algorithm;
and sending the encrypted data to a base station or a terminal, wherein the adopted communication mode comprises the following communication modes: wifi, bluetooth or public network;
the public network communication module supports 2G, 3G and TDD mode 4G communication standards.
According to a specific embodiment of the present invention, the network signal quality evaluation module specifically performs the following operations:
when the CQI of the private network link is lower than a threshold value and cannot communicate, starting public network communication;
evaluating the quality of network signals directly connected between a terminal and a base station under a public network environment to obtain a CQI value, and normalizing;
evaluating the data transmission quality under the MESH environment, taking the block error rate of the data sent by blocks under the MESH environment as a signal quality evaluation standard, and normalizing the block error rate to obtain a normalized value of Tb;
selecting different communication strategies according to the difference that the normalized CQI value CQI 'and the normalized value Tb' of the terminal fall into the range;
before determining the communication strategy, all the communication modules are started and standby, the strategy determines which communication module is selected to work, and after determining the communication strategy, the receiving and sending channels of data are directly selected from an operating system network layer and comprise four channels of private network, public network, MESH and MWSH public network cascade.
According to a specific embodiment of the present invention, the communication policy comprises: the MESH ad hoc network, the public network direct connection and the public network direct connection are cascaded with the MESH ad hoc network.
According to a specific embodiment of the present invention, the normalized CQI value CQI' is obtained by: CQI 15/CQIMaxWherein CQI is an estimated CQI value, CQIMaxIs the maximum of the estimated CQI values; tb values were normalized as follows: tb ═ 15 (Tb-Tb)Min)/(TbMax-TbMin) Wherein Tb' is the normalized value of error block rate Tb, Tb is error block rate Tb, TbMinFor minimum block error rate, TbMaxThe maximum block error rate.
According to a specific embodiment of the present invention, according to the difference that the normalized CQI value CQI 'and the normalized value Tb' of Tb of the terminal fall into the range, selecting different communication strategies specifically comprises: when CQI 'is less than CQI _1, a MESH ad hoc network strategy is adopted, and the CQI value of the terminal participating in the MESH ad hoc network node and the normalized CQI' are counted; when CQI _1< CQI' < ═ CQI _2 and Tb < Tb _1, adopting a public network direct connection strategy; when CQI' is less than CQI _2 and Tb _1 is less than Tb, adopting a MESH ad hoc network strategy; when CQI _2< CQI' < ═ CQI _5 and Tb < ═ Tb _2, adopting a public network direct connection strategy; when CQI _2< CQI' < CQI _3 and Tb _2< ═ Tb < Tb _4, adopting a MESH ad hoc network strategy; and when CQI _3< CQI' < CQI _5 and Tb _2< Tb, adopting a public network direct connection and MESH ad hoc network cascade strategy.
The public network direct connection and MESH ad hoc network cascade strategy can access the MESH network-accessed device data into the public network. If no public network cascade strategy starting condition exists in the environment, the UE cannot access the network, only the MESH networking strategy is adopted, and the audio and video communication of the local area network is realized by decentralized audio and video communication software of the UE.
According to a specific embodiment of the present invention, CQI _1 is 2.5, CQI _2 is 5, CQI _3 is 7.5, CQI _5 is 15; tb _1 was 5, Tb _2 was 7.5, and Tb _4 was 15.
According to a specific embodiment of the invention, the data entering and exiting the designated bus interface is encrypted and decrypted, and when the data of the WIFI communication module, the Bluetooth communication module, the MESH module and the public network communication module are respectively received and transmitted, the data are encrypted and decrypted through hardware.
According to a specific embodiment of the invention, the public network communication module supports GSM, WCDMA, TD-SCDMA and TD-LTE communication network systems; the WIFI communication module supports an 802.11a/b/g/n/ac protocol and supports 2x 2Wi-Fi MIMO; the Bluetooth communication module supports Bluetooth 4.0 and Bluetooth 5.0 standards; the MESH module common-frequency broadband network supports 8-hop relay at most, the MESH module supports the network scale that the single frequency is not lower than 32 nodes, and the direct communication can be realized within the distance of 2KM under the common-view environment.
According to a specific embodiment of the invention, data is transmitted in plaintext between private network access devices; in public network, MESH, Bluetooth and WIFI communication, data are encrypted and decrypted by hardware.
According to one embodiment of the invention, the public network communication module supports the following standards and characteristics:
3GPP Release 12；
the lowest supported TDD (time division duplex)/FDD (frequency division duplex) LTE Category (terminal capability class) 7, DL (downlink) maximum transmission rate 300Mbps, UL (uplink) maximum transmission rate 100 Mbps;
the TDD/FDD LTE Category13 UL 150Mbps and Category 7 DL 300Mbps are supported;
supporting DL: 2-layer MIMO, the 2-layer MIMO comprising 2x2MIMO, 4x2MIMO, and 8x2 MIMO;
supporting UL64QAM and DL 64 QAM;
support 2CA (carrier aggregation) within and between DL bands;
support continuous 2CA (carrier aggregation) within and between UL bands;
supporting FDD CA (carrier aggregation) and TDD CA (carrier aggregation);
support VoLTE (Voice over Long-Term Evolution Voice over LTE);
support short DRX (discontinuous reception), long DRX and DRX under connection state;
support TTI Bundling (Transmission Time Interval Bundling) and SPS (Semi-Persistent Scheduling);
support security algorithms EEA1/EIA1 SNOW-3G, EEA2/EIA2 AES, EEA3/EIA3 ZUC.
According to a specific embodiment of the present invention, the private network communication module supports the following features:
the working frequency band comprises TDD 1.8G and TDD 1.4G, and the supported working bandwidth comprises 5MHz, 10MHz and 20 MHz; the maximum transmitting power is better than 27dBm, and the receiving sensitivity is better than-94 dBm;
the modulation mode is as follows: both the uplink and the downlink support QPSK, 16QAM and 64 QAM; capacity rating greater than Category 4;
supporting military TF card encryption;
supporting an audio and video transmission function;
support voice cluster functions;
the power consumption in the normal working state is less than or equal to 600mW, and the power consumption in the dormant state is less than or equal to 35 mW.
According to a specific embodiment of the present invention, the encrypted data is not reproducible from the OS layer
According to a specific embodiment of the present invention, the mobile terminal further comprises an external interface, the external interface comprising: USB2.0, OTG (Type-C), Audio-in, SKU 16Pin standard interface and magnetism inhale the mouth that charges.
Example 1
Referring to fig. 1-2, a command scheduling terminal for public network blind compensation according to an embodiment of the present invention will be described in detail.
The invention provides a command scheduling terminal for public network blind compensation, which comprises a main control unit, an encryption unit and a communication unit; the device also comprises an external interface;
the communication unit comprises a network signal quality evaluation module, a public network communication module, a WIFI communication module, a Bluetooth communication module, an MESH module and a private network communication module, wherein the MESH is a wireless MESH network;
the main control unit is connected with a private network communication module, an LTE-TDD mode is adopted, and the working frequency Band comprises Band61:1447MHz-1467MHz and Band62:1785MHz-1805 MHz;
the output end of the encryption unit is connected with the public network communication module, the output end of the encryption unit is connected with the WIFI communication module, the output end of the encryption unit is connected with the Bluetooth communication module, and the output end of the encryption unit is connected with the MESH communication module;
the network signal quality evaluation module performs the following operations:
broadcasting the CQI in the MESH network;
when a public network is started, UE measurement and CQI estimation are carried out, CQI and Tb values are counted and normalized, the CQI is a channel quality indicator, the Tb is a block error rate of data sent by blocks under a MESH environment, and the block error rate is used as a signal quality evaluation standard;
the normalized CQI value CQI' is obtained by the following method: CQI 15/CQIMaxWherein CQI is an estimated CQI value, CQIMaxIs the maximum of the estimated CQI values; tb values were normalized as follows: tb ═ 15 (Tb-Tb)Min)/(TbMax-TbMin) Wherein Tb' is the normalized value of error block rate Tb, Tb is error block rate Tb, TbMinFor minimum block error rate, TbMaxThe maximum block error rate;
selecting different communication strategies according to the difference that the normalized values Tb' of the CQI and Tb fall into the range; the communication strategy comprises the following steps: the MESH ad hoc network, the public network direct connection and the public network direct connection are cascaded with the MESH ad hoc network.
The network signal quality evaluation module specifically executes the following operations:
when the CQI of the private network link is lower than a threshold value and cannot communicate, starting public network communication;
evaluating the quality of network signals directly connected between a terminal and a base station under a public network environment to obtain a CQI value, and normalizing;
evaluating the data transmission quality under the MESH environment, taking the block error rate of the data sent by blocks under the MESH environment as a signal quality evaluation standard, and normalizing the block error rate to obtain a normalized value of Tb;
according to the difference that the normalized CQI value CQI 'and the normalized value Tb' of the terminal fall into the range, selecting different communication strategies, specifically: when CQI 'is less than CQI _1, a MESH ad hoc network strategy is adopted, and the CQI value of the terminal participating in the MESH ad hoc network node and the normalized CQI' are counted; when CQI _1< CQI' < ═ CQI _2 and Tb < Tb _1, a public network direct connection strategy is adopted; when CQI' is less than CQI _2 and Tb _1 is less than Tb, adopting a MESH ad hoc network strategy; when CQI _2< CQI' < ═ CQI _5 and Tb < ═ Tb _2, adopting a public network direct connection strategy; when CQI _2< CQI' < CQI _3 and Tb _2< ═ Tb < Tb _4, adopting a MESH ad hoc network strategy; when CQI _3< CQI' < CQI _5 and Tb _2< Tb, adopting a public network direct connection and MESH ad hoc network cascade strategy;
in this embodiment, CQI _1 is 2.5, CQI _2 is 5, CQI _3 is 7.5, and CQI _5 is 15; tb _1 is 5, Tb _2 is 7.5, Tb _4 is 15;
before determining the communication strategy, all the communication modules are started and standby, the strategy determines which communication module is selected to work, and after determining the communication strategy, the receiving and sending channels of data are directly selected from an operating system network layer and comprise four channels of private network, public network, MESH and MWSH public network cascade.
The encryption unit comprises a high-speed encryption and decryption module, and executes the following operations aiming at the transceiving data of wifi, Bluetooth or public network:
the high-speed encryption and decryption module encrypts and decrypts data by adopting an encryption and decryption algorithm, and the encrypted data cannot be copied from an OS layer; the encryption and decryption algorithm comprises at least one of the following algorithms: DES/3DES algorithm, ES128, AES192, AES256 algorithm, RSA1024bit-2048bit algorithm and ECC algorithm;
and sending the encrypted data to a base station or a terminal, wherein the adopted communication mode comprises the following communication modes: wifi, bluetooth or public network;
encrypting and decrypting the input and output data of the designated bus interface, and performing hardware encryption and decryption on the data when the WIFI communication module, the Bluetooth communication module, the MESH module and the public network communication module respectively receive and transmit the data;
data is transmitted in plaintext between private network access devices; in public network, MESH, Bluetooth and WIFI communication, data is encrypted and decrypted by hardware;
the public network communication module supports 2G, 3G and TDD mode 4G communication standards.
The public network communication module supports GSM, WCDMA, TD-SCDMA and TD-LTE communication network systems; the WIFI communication module supports an 802.11a/b/g/n/ac protocol and supports 2x 2Wi-Fi MIMO; the Bluetooth communication module supports Bluetooth 4.0 and Bluetooth 5.0 standards; the MESH module common-frequency broadband network supports 8-hop relay at most, the MESH module supports the network scale that the single frequency is not lower than 32 nodes, and the direct communication can be realized within the distance of 2KM under the common-view environment.
The public network communication module supports the following standards and characteristics:
3GPP Release 12；
the lowest supported TDD (time division duplex)/FDD (frequency division duplex) LTE Category (terminal capability class) 7, DL (downlink) maximum transmission rate 300Mbps, UL (uplink) maximum transmission rate 100 Mbps;
supporting TDD/FDD LTE Category13 UL 150Mbps, Category 7 DL 300 Mbps;
supporting DL: 2-layer MIMO, the 2-layer MIMO comprising 2x2MIMO, 4x2MIMO, and 8x2 MIMO;
supporting UL64QAM and DL 64 QAM;
support 2CA (carrier aggregation) within and between DL bands;
support continuous 2CA (carrier aggregation) within and between UL bands;
supporting FDD CA (carrier aggregation) and TDD CA (carrier aggregation);
support VoLTE (Voice over Long-Term Evolution Voice over LTE);
support short DRX (discontinuous reception), long DRX and DRX under connection state;
support TTI Bundling (Transmission Time Interval Bundling) and SPS (Semi-Persistent Scheduling);
support security algorithms EEA1/EIA1 SNOW-3G, EEA2/EIA2 AES, EEA3/EIA3 ZUC.
The private network communication module supports the following features:
the working frequency band comprises TDD 1.8G and TDD 1.4G, and the supported working bandwidth comprises 5MHz, 10MHz and 20 MHz; the maximum transmitting power is better than 27dBm, and the receiving sensitivity is better than-94 dBm;
modulation mode: both uplink and downlink support QPSK, 16QAM and 64 QAM; capacity rating greater than Category 4;
supporting military TF card encryption;
supporting an audio and video transmission function;
support voice cluster functions;
the power consumption in the normal working state is less than or equal to 600mW, and the power consumption in the dormant state is less than or equal to 35 mW.
The external interface includes: USB2.0, OTG (Type-C), Audio-in, SKU 16Pin standard interface and magnetism inhale the mouth that charges.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (6)

1. A command scheduling terminal for public network blind compensation is characterized by comprising a main control unit, an encryption unit and a communication unit;
the communication unit comprises a network signal quality evaluation module, a public network communication module, a WIFI communication module, a Bluetooth communication module, an MESH module and a private network communication module, wherein the MESH is a wireless MESH network;
the main control unit is connected with the private network communication module and adopts an LTE-TDD mode;
the output end of the encryption unit is connected with the public network communication module, the output end of the encryption unit is connected with the WIFI communication module, the output end of the encryption unit is connected with the Bluetooth communication module, and the output end of the encryption unit is connected with the MESH communication module;
the network signal quality evaluation module performs the following operations:
broadcasting the CQI in the MESH network;
when a public network is started, UE measurement and CQI estimation are carried out, CQI and Tb values are counted and normalized, the CQI is a channel quality indicator, the Tb is a block error rate of data sent by blocks under a MESH environment, and the block error rate is used as a signal quality evaluation standard; the normalized CQI value CQI' is obtained by the following method: CQI 15/CQIMaxWherein CQI is an estimated CQI value, CQIMaxFor the maximum of the estimated CQI values, the Tb value is normalized as follows: tb ═ 15 (Tb-Tb)Min)/(TbMax-TbMin) Wherein Tb' is the normalized value of error block rate Tb, Tb is error block rate Tb, TbMinFor minimum block error rate, TbMaxThe maximum block error rate;
when the terminal normalized CQI is less than CQI _1, the CQI _1 is a preset threshold value, the MESH ad hoc network strategy of the connectable terminal in the area is awakened, and the CQI value of the terminal participating in the ad hoc network node is counted;
according to the difference that the normalized values Tb' of CQI and Tb fall into the range, selecting different communication strategies, wherein the communication strategies comprise: the MESH ad hoc network, the public network direct connection and the public network direct connection are cascaded with the MESH ad hoc network, and specifically:
when CQI 'is less than CQI _1, a MESH ad hoc network strategy is adopted, and the CQI value of the terminal participating in the MESH ad hoc network node and the normalized CQI' are counted; when CQI _1< CQI' < ═ CQI _2 and Tb < Tb _1, a public network direct connection strategy is adopted; when CQI' is CQI _2 and Tb _1 is Tb, adopting a MESH ad hoc network strategy; when CQI _2< CQI' < ═ CQI _5 and Tb < ═ Tb _2, adopting a public network direct connection strategy; when CQI _2< CQI' < CQI _3 and Tb _2< ═ Tb < Tb _4, adopting a MESH ad hoc network strategy; when CQI _3< CQI' < CQI _5 and Tb _2< Tb, adopting a public network direct connection and MESH ad hoc network cascade strategy;
the encryption unit comprises a high-speed encryption and decryption module, and executes the following operations aiming at the transceiving data of WIFI, Bluetooth or public network:
the high-speed encryption and decryption module encrypts and decrypts data by adopting an encryption and decryption algorithm; the encryption and decryption algorithm comprises at least one of the following algorithms: DES/3DES algorithm, ES128, AES192, AES256 algorithm, RSA1024bit-2048bit algorithm and ECC algorithm;
and sending the encrypted data to a base station or a terminal, wherein the adopted communication mode comprises the following communication modes: WIFI, Bluetooth or public networks.
2. The public network blind-patching commanding and scheduling terminal according to claim 1, wherein the network signal quality evaluation module specifically executes the following operations:
when the CQI of the private network link is lower than a preset threshold value or communication cannot be carried out, public network communication is started;
evaluating the quality of network signals directly connected between a terminal and a base station under a public network environment to obtain a CQI value, and normalizing;
evaluating data transmission quality under the MESH environment, taking a block error rate Tb of data sent by blocks under the MESH environment as a signal quality evaluation standard, and normalizing the block error rate to obtain a normalized value Tb' of Tb;
and selecting different communication strategies according to the difference that the normalized CQI value CQI 'and the normalized value Tb' of the terminal fall into the range.
3. The public network blind-complementing commanding and scheduling terminal according to claim 2, wherein CQI _1 is 2.5, CQI _2 is 5, CQI _3 is 7.5, and CQI _5 is 15; tb _1 was 5, Tb _2 was 7.5, and Tb _4 was 15.
4. The public network blind-patching commanding and scheduling terminal according to claim 1, wherein the data transmitted by the designated bus interface is encrypted and decrypted, and when the data are respectively received and transmitted by the WIFI communication module, the Bluetooth communication module, the MESH module and the public network communication module, the data are encrypted and decrypted by hardware.
5. The public network blind-patching commanding and scheduling terminal of claim 1, wherein the public network communication module supports GSM, WCDMA, TD-SCDMA and TD-LTE communication network systems; the WIFI communication module supports an 802.11a/b/g/n/ac protocol and supports 2x 2Wi-Fi MIMO; the Bluetooth communication module supports Bluetooth 4.0 and Bluetooth 5.0 standards; the MESH module common-frequency broadband network supports 8-hop relay at most, the MESH module supports the network scale that the single frequency is not lower than 32 nodes, and the direct communication can be realized within the distance of 2KM under the common-view environment.
6. The public network blind-patching commanding and scheduling terminal according to claim 1, wherein data is transmitted in plaintext between private network access devices; in public network, MESH, Bluetooth and WIFI communication, data are encrypted and decrypted by hardware.
CN202110560083.XA 2021-05-21 2021-05-21 Public network blind-patching commanding and dispatching terminal Active CN113347624B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110560083.XA CN113347624B (en) 2021-05-21 2021-05-21 Public network blind-patching commanding and dispatching terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110560083.XA CN113347624B (en) 2021-05-21 2021-05-21 Public network blind-patching commanding and dispatching terminal

Publications (2)

Publication Number Publication Date
CN113347624A CN113347624A (en) 2021-09-03
CN113347624B true CN113347624B (en) 2022-05-27

Family

ID=77470756

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110560083.XA Active CN113347624B (en) 2021-05-21 2021-05-21 Public network blind-patching commanding and dispatching terminal

Country Status (1)

Country Link
CN (1) CN113347624B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010073060A1 (en) * 2008-12-26 2010-07-01 夏普株式会社 Method, system, user device, base station, program and storage medium for cooperative communication
CN102378316A (en) * 2010-08-17 2012-03-14 北京迅光达通信技术有限公司 Double-network digital mobile communication terminal and double-network communication method thereof
CN111757427A (en) * 2020-06-05 2020-10-09 东方通信股份有限公司 Channel quality evaluation-based selection method for preferred network of wide-narrow convergence terminal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN213043848U (en) * 2020-07-14 2021-04-23 琪信通达(北京)科技有限公司 Emergency communication ad hoc network device and system
CN111970728A (en) * 2020-08-25 2020-11-20 塔盾信息技术(上海)有限公司 AI (Artificial intelligence) public-private converged communication commonality technical architecture and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010073060A1 (en) * 2008-12-26 2010-07-01 夏普株式会社 Method, system, user device, base station, program and storage medium for cooperative communication
CN102378316A (en) * 2010-08-17 2012-03-14 北京迅光达通信技术有限公司 Double-network digital mobile communication terminal and double-network communication method thereof
CN111757427A (en) * 2020-06-05 2020-10-09 东方通信股份有限公司 Channel quality evaluation-based selection method for preferred network of wide-narrow convergence terminal

Also Published As

Publication number Publication date
CN113347624A (en) 2021-09-03

Similar Documents

Publication Publication Date Title
US11438941B2 (en) Communication method and communications apparatus
US10009791B2 (en) Method for the transmission of data field of technology
CN109479297B (en) sidelink resource scheduling method, apparatus and system
JP2020524936A (en) Copy transmission configuration, copy transmission method and apparatus
US20140126489A1 (en) Managing operating parameters for communication bearers in a wireless network
US11962387B2 (en) Wireless communication method and apparatus
US10440602B2 (en) System and method for data forwarding in a communications system
CN111565371B (en) Method and system for transmitting and receiving protocol data units in a communication network
WO2021063071A1 (en) Wireless communication method and apparatus
EP2983420A1 (en) Base station
WO2013152743A1 (en) Method and device for transmitting signals
WO2022110168A1 (en) Communication configuration method and communication apparatus
KR20160079085A (en) Methods, system, and devices for configuring drx and for monitoring control channel
JP2022527921A (en) Communication method and equipment
WO2013135121A1 (en) Method and user equipment for data transmission
CN114830766A (en) Resource allocation method and device
CN113347624B (en) Public network blind-patching commanding and dispatching terminal
EP4274316A1 (en) Uplink transmission resource scheduling method, base station, user equipment and communication system
CN112423393A (en) Data transmission method and device
CN112243270A (en) Data packet transmission method and device and computer readable storage medium
WO2020221011A1 (en) Data transmission method and apparatus
WO2022036523A1 (en) Data transmission method and device
WO2023060404A1 (en) Logical channel priority ranking method and apparatus, device and storage medium
EP4340263A1 (en) Method and device for aligning downlink control information size
WO2022021293A1 (en) Method and device for channel monitoring

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