WO2018045588A1

WO2018045588A1 - Information processing method, apparatus and related equipment

Info

Publication number: WO2018045588A1
Application number: PCT/CN2016/098725
Authority: WO
Inventors: 马慧娟
Original assignee: 海能达通信股份有限公司
Priority date: 2016-09-12
Filing date: 2016-09-12
Publication date: 2018-03-15

Abstract

The present invention provides an information processing method, apparatus and related equipment, the method comprising: when determining that a connection between a first base station and a terrestrial network is disconnected on the basis of a network status of the first base station, receiving a first type request sent by the first base station using a wireless mode, and sending a second type request corresponding to the first type request to the terrestrial network using a wireless mode so as to trigger the terrestrial network to respond to a same indication. In other words, when an internet protocol (IP) link between the first base station and the terrestrial network fails, the terrestrial network may receive the second type request corresponding to the same indication by means of a wireless mode so as to carry out wireless link backup of the IP link. Thus, a wireless link may be configured for each first base station in an underground network, eliminating the need to set up infrastructure equipment and lay a wired network for each first base station, and thereby reducing investment cost and reducing failure frequency of master and backup links in the case of infrastructure problems occurring in the entire site.

Description

Information processing method, device and related equipment

Technical field

The invention belongs to the technical field of subway communication, and more particularly to an information processing method, device and related equipment.

Background technique

At present, domestic subway public security generally constructs a PDT (Police Digital Trunking) wireless communication network underground. The PDT base station in the PDT wireless communication network is connected to the MSO through an IP (Internet Protocol) link (Mobile Switch Office). , wireless switching center). When the IP link of one or more PDT base stations in the local PDT wireless communication network is disconnected, the PDT base station is reduced to work in a single station mode, so that the base station cannot communicate with other PDF base stations, which may cause the underground network to become an information island. It is easy to cause a major group safety incident.

To prevent the underground network from becoming an information island due to the IP link failure, you can use the IP link backup mode. When the primary IP link in the PDT base station fails, the PDT base station can use the standby IP link to access the MSO. Other PDT base stations communicate.

However, the network environment of the current private IP backbone network is different. Although the above-mentioned IP link backup mode can ensure the security of the link of the PDT base station, in the actual implementation, the underground network needs to be modified, for each The PDT base station deploys a separate dual-IP link, which has a high investment cost. Due to the special nature of the underground network construction, if the infrastructure problem occurs at the entire site that is transited by the active/standby IP link, the active and standby IP links will be faulty.

Summary of the invention

In view of the above, the present invention provides an information processing method, device, and related device, which are used to reduce the investment cost, and reduce the probability of failure of the active and standby links in the case of a infrastructure problem at the entire site. The technical solution is as follows:

In a first aspect, the present invention provides an information processing method, where the method is applied to a gateway, where the gateway is used for communication between an underground network and a terrestrial network, and the gateway is connectable to the first communication terminal and the second communication terminal. The first communication terminal is configured to respond to at least a first type of request in the underground network, and the second communication terminal is configured to respond to at least a second type of request in the terrestrial network, the method comprising:

Obtaining a networking situation of the first base station, where the first base station is located in the underground network, where the third communication terminal registered under the first base station issues the first type request;

Receiving, when the networked condition of the first base station indicates that the connection between the first base station and the terrestrial network is disconnected, receiving the first type request that is sent by the first base station in a wireless manner;

Transmitting, to the terrestrial network, a second type of request corresponding to the first type of request, the first type of request and the second type of request being different types of requests.

Advantageously, the transmitting, by the wireless manner, the second type of request corresponding to the first type of request to the terrestrial network comprises:

Obtaining a second type request corresponding to the first type request;

Sending, to the second communication terminal, a second control instruction, where the second control instruction is used to instruct the second communication terminal to send the second type request in a wireless manner;

or

Transmitting, to the second communication terminal, a second control instruction, where the second control instruction carries the first type request, and is configured to instruct the second communication terminal to wirelessly send, corresponding to the first type of request The second type of request.

Preferably, the method further includes:

After establishing a call corresponding to the second type of request, obtaining networking conditions of other first base stations;

And when the networking condition of the other first base station indicates that the connection of the other first base station to the terrestrial network is disconnected, the first type request is sent to the other first base station in a wireless manner.

Preferably, the networking situation of the other first base station indicates the other first base station When the connection with the terrestrial network is disconnected, sending the first type request to the other first base station in a wireless manner includes:

Obtaining a first type request corresponding to the second type request when the networking condition of the other first base station indicates that the connection of the other first base station to the terrestrial network is disconnected;

Sending, by the first communications terminal, a first control instruction, where the first control command is used to instruct the first communications terminal to send the first type request in a wireless manner;

or

When the networking condition of the other first base station indicates that the connection between the other first base station and the terrestrial network is disconnected, sending a first control instruction to the first communication terminal, where the first control instruction is used And instructing the first communication terminal to obtain and wirelessly transmit a first type request corresponding to the second type request.

Preferably, when the networking request of the other first base station indicates that the connection of the other first base station to the terrestrial network is normal, the terrestrial network directly sends the first type request to other first base stations.

In a second aspect, the present invention provides an information processing method, which is applied to a communication terminal, and the method includes:

Receiving a second control instruction, according to which the second type request corresponding to the first type request is obtained, wherein the first type request is sent by a third communication terminal registered under the first base station, The first base station is located in the underground network, and the first type request and the second type request are different types of requests;

The second type of request is sent to the terrestrial network in a wireless manner.

Preferably, after receiving the second control instruction, obtaining the second type request corresponding to the first type request includes:

After receiving the second control instruction, acquiring a second type request corresponding to the first type request from the second control instruction;

or

After receiving the second control instruction, searching for the first type request from the relationship mapping table Corresponding to the second type of request to obtain the second type of request, wherein the first type of request is carried in the second control instruction.

Preferably, the method further includes:

After the call corresponding to the second type request is established and the connection between the other first base station and the terrestrial network is disconnected, the second type request is responded to by the communication terminal;

After receiving the first control instruction, obtaining the first type request corresponding to the second type request;

The first type of request is sent to the other first base station in a wireless manner.

Preferably, after receiving the first control instruction, obtaining the first type request corresponding to the second type request includes:

After receiving the first control instruction, acquiring a first type request corresponding to the second type request from the first control instruction;

or

After receiving the first control instruction, searching for the first type request corresponding to the second type request from a relationship mapping table to obtain the first type request, wherein the second type request Carryed in the first control instruction.

In a third aspect, the present invention provides an information processing method, which is applied to a terrestrial network, and the method includes:

After receiving the second type request corresponding to the first type request, establishing a call corresponding to the second type request, where the first type request is sent by a third communication terminal registered under the first base station, The first base station is located in the underground network, and the first type request and the second type request are different types of requests;

After establishing the call corresponding to the second type request, obtaining a first type request corresponding to the second type request;

The first type of request is sent to the second base station that is normally connected, and the second base station that is normally connected is located in the underground network.

In a fourth aspect, the present invention provides an information processing apparatus, the apparatus being applied to a gateway, the network A communication for the underground network and the terrestrial network, and the gateway is connectable to the first communication terminal and the second communication terminal, the first communication terminal being configured to respond at least to the first type of request in the underground network, The second communication terminal is configured to respond at least to the second type of request in the terrestrial network, and the apparatus includes:

a first obtaining unit, configured to obtain, according to a network connection situation, a networking situation of the first base station, where the first base station is located in the underground network, where a third communication terminal registered under the first base station issues the first a type of request;

a receiving unit, configured to: when the networked condition of the first base station indicates that the connection between the first base station and the terrestrial network is disconnected, receive the first type request that is sent by the first base station in a wireless manner;

And a sending unit, configured to send, to the terrestrial network, a second type of request corresponding to the first type of request, where the first type request and the second type request are different types of requests.

Preferably, the first obtaining unit is configured to obtain a second type request corresponding to the first type request;

The sending unit is configured to send a second control instruction to the second communications terminal, where the second control command is used to instruct the second communications terminal to send the second type request in a wireless manner;

or

The sending unit is configured to send a second control instruction to the second communications terminal, where the second control command carries the first type request, and is used to instruct the second communications terminal to send and transmit in a wireless manner A second type of request corresponding to the first type of request.

Preferably, the device further includes: a second obtaining unit, configured to obtain a networking situation of the other first base station after establishing a call corresponding to the second type request, and when the other first base station is connected to the network When the connection of the other first base station to the terrestrial network is indicated to be disconnected, the sending unit is triggered to send the first type request to the other first base station in a wireless manner.

Preferably, the second obtaining unit is further configured to obtain the second type when the networking condition of the other first base station indicates that the connection of the other first base station to the terrestrial network is disconnected And requesting the corresponding first type of request, and triggering the sending unit to send a first control instruction to the first communications terminal, where the first control command is used to instruct the first communications terminal to send the first class in a wireless manner Type request

or

The sending unit is configured to send a first control instruction to the first communication terminal when the networking situation of the other first base station indicates that the connection between the other first base station and the terrestrial network is disconnected, The first control instruction is used to instruct the first communication terminal to obtain and wirelessly transmit a first type request corresponding to the second type request.

In a fifth aspect, the present invention provides an information processing apparatus, which is applied to a communication terminal, and the apparatus includes:

a receiving unit, configured to receive a second control instruction;

a first conversion unit, configured to obtain, according to the second control instruction, a second type request corresponding to the first type of request, where the first type request is sent by a third communication terminal registered under the first base station, where The first base station is located in an underground network, and the first type request and the second type request are different types of requests;

And a sending unit, configured to send the second type request to the terrestrial network in a wireless manner.

Preferably, the first converting unit is configured to acquire, after the receiving unit receives the second control instruction, a second type request corresponding to the first type request from the second control instruction. ;

or

The first converting unit is configured to: after the receiving unit receives the second control instruction, look up the second type request corresponding to the first type request from a relationship mapping table to obtain a A second type of request, wherein the first type of request is carried in the second control instruction.

Preferably, the device further comprises:

a response unit, configured to respond to the second type request by the communication terminal after establishing a call corresponding to the second type request and the connection between the other first base station and the terrestrial network is disconnected;

a second converting unit, configured to: after the receiving unit receives the first control instruction, obtain the first type request corresponding to the second type request, and trigger the sending unit to wirelessly The other first base station sends the first type of request.

Preferably, the second converting unit is configured to acquire, after the receiving unit receives the first control instruction, a first type request corresponding to the second type request from the first control instruction. ;

or

The second converting unit is configured to: after the receiving unit receives the first control instruction, look up the first type request corresponding to the second type request from a relationship mapping table to obtain a A first type of request, wherein the second type of request is carried in the first control instruction.

In a sixth aspect, the present invention provides an information processing apparatus, which is applied to a terrestrial network, and the apparatus includes:

a establishing unit, configured to establish, after receiving the second type request corresponding to the first type request, a call corresponding to the second type request, where the first type request is configured by a third communication registered under the first base station The terminal sends out that the first base station is located in an underground network, and the first type request and the second type request are different types of requests;

An obtaining unit, configured to obtain a first type request corresponding to the second type request after establishing a call corresponding to the second type request;

And a sending unit, configured to send the first type of request to a second base station that is normally connected, where the second base station that is normally connected is located in an underground network.

According to a seventh aspect, the present invention provides a gateway, where the gateway is used for communication between an underground network and a terrestrial network, and the gateway is connectable to the first communication terminal and the second communication terminal, where the first communication terminal is at least configured to respond a first type of request in the underground network, the second communication terminal is configured to respond to at least a second type of request in the terrestrial network, the gateway comprising:

a communication component, configured to obtain a networking situation of the first base station based on a network connection situation, where the first base station is located in the underground network, where a third communication terminal registered under the first base station issues the first type request;

a processor, configured to determine, according to the networking situation of the first base station, that the connection between the first base station and the terrestrial network is disconnected, and trigger the communication component to receive the first base station to send wirelessly The first type of request and triggering the communication component to wirelessly transmit a second type of request corresponding to the first type of request to the terrestrial network, the first type request and the second type request Request for different types.

In an eighth aspect, the present invention provides a communication terminal, where the communication terminal includes:

a communication component, configured to receive a second control instruction;

a processor, configured to obtain a second type request corresponding to the first type request according to the second control instruction, and trigger the communication component to wirelessly send the second type request to a terrestrial network, where the A type request is issued by a third communication terminal registered under the first base station, the first base station is located in an underground network, and the first type request and the second type request are different types of requests.

According to a ninth aspect, the present invention provides a communication device, which is applied to a terrestrial network, where the communication device includes: a communication component and a processor;

The processor is configured to: after the communication component receives the second type request corresponding to the first type request, establish a call corresponding to the second type request, after establishing the call corresponding to the second type request Obtaining a first type request corresponding to the second type of request, and triggering the communication component to send the first type request to a second base station that is normally connected;

The first type request is sent by a third communication terminal registered under the first base station, the first base station is located in an underground network, and the first type request and the second type request are different types of requests, The second base station that is normally connected is located in the underground network.

Compared with the prior art, the above technical solution provided by the present invention has the following advantages:

The foregoing technical solution provided by the present invention, when determining that the connection between the first base station and the terrestrial network is disconnected based on the networking situation of the first base station, receiving the first type request that is sent by the first base station in a wireless manner, and may be wireless The method sends a second type of request corresponding to the first type of request to the terrestrial network to trigger the terrestrial network to respond to the same indication. That is to say, when the IP link of the first base station and the terrestrial network is faulty, the terrestrial network can receive the second type request corresponding to the same indication in a wireless manner, thereby implementing wireless link backup of the IP link, so that the underground network is in the underground network. Each of the first base stations can be configured with a wireless link, thereby eliminating the need to build infrastructure equipment for each first base station and A network that reduces the cost of investment and reduces the chances of failure of both the primary and backup links in the event of a infrastructure problem across the site.

Moreover, the foregoing technical solutions provided by the present invention can be implemented by a gateway and a communication terminal, and the gateway and the communication terminal generally reduce the failure rate as the technology continues to develop, so when the gateway and the communication terminal are used as the infrastructure equipment of the entire site, the reduction can be reduced. The failure rate of the infrastructure equipment further reduces the chance that the active and standby links will fail.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are Some embodiments of the present invention may also be used to obtain other drawings based on these drawings without departing from the art.

FIG. 1 is a flowchart of an information processing method according to an embodiment of the present invention;

2 is another flowchart of an information processing method according to an embodiment of the present invention;

FIG. 3 is still another flowchart of an information processing method according to an embodiment of the present invention;

4 is a schematic diagram of a PDT cluster system according to an embodiment of the present invention;

5 is a schematic diagram of an IP link failure of a PDT base station A and a PDT base station B in the PDT cluster system shown in FIG. 4;

FIG. 6 is a signaling diagram of an information processing method according to an embodiment of the present invention;

FIG. 7 is another signaling diagram of an information processing method according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an information processing apparatus applied to a gateway according to an embodiment of the present disclosure;

FIG. 9 is another schematic structural diagram of an information processing apparatus applied to a gateway according to an embodiment of the present invention; FIG.

FIG. 10 is a schematic structural diagram of an information processing apparatus applied to a communication terminal according to an embodiment of the present invention; FIG.

11 is another type of information processing apparatus applied to a communication terminal according to an embodiment of the present invention. Schematic diagram

FIG. 12 is a schematic structural diagram of an information processing apparatus applied to a terrestrial network according to an embodiment of the present invention; FIG.

FIG. 13 is a schematic structural diagram of a gateway according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of a communication terminal according to an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a communication device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

First, the information processing method provided by the embodiment of the present invention is described from the gateway side in conjunction with the accompanying drawings, wherein the gateway is used for the communication between the underground network and the terrestrial network, and the gateway is connected with the first communication terminal and the second communication terminal, and the first communication terminal At least for responding to a first type of request in the underground network, the second communication terminal is responsive at least to responding to a second type of request in the terrestrial network.

Please refer to FIG. 1 , which is a flowchart of an information processing method according to an embodiment of the present invention, which may include the following steps:

101: Obtain a networking situation of the first base station according to a network connection situation, where the first base station is located in the underground network, and the third communication terminal registered under the first base station sends a first type request.

102: Receive a first type request that is sent by the first base station in a wireless manner when the networking situation of the first base station indicates that the connection between the first base station and the terrestrial network is disconnected.

103: Send a second type request corresponding to the first type request to the terrestrial network in a wireless manner, the first type request and the second type request being different types of requests.

One of the modes is: obtaining a second type request corresponding to the first type request by using the gateway; and sending a second control instruction to the second communication terminal, where the second control instruction is used to indicate that the second communication terminal is The second type of request is sent wirelessly.

Another way is to send a second control instruction to the second communication terminal, where the second control instruction is used to instruct the second communication terminal to obtain and wirelessly transmit the second type request corresponding to the first type request.

The information processing method provided by the embodiment of the present invention is described with reference to FIG. 2, which is a flowchart of an information processing method applied to a communication terminal, and may include the following steps:

201: After receiving the second control instruction, obtain a second type request corresponding to the first type request, where the first type request is sent by a third communication terminal registered under the first base station, where the first base station is located in the underground network. And the first type request and the second type request are different types of requests.

In the embodiment of the present invention, when the first type of request is that the networking situation of the first base station indicates that the connection between the first base station and the terrestrial network is disconnected, the first base station is sent in a wireless manner, and the corresponding second type request is in the first The networking situation of the base station is obtained when the connection between the first base station and the terrestrial network is disconnected.

One way of obtaining the second type of request is: after receiving the second control instruction, obtaining a second type of request corresponding to the first type of request from the second control instruction; the corresponding another way is: After receiving the second control instruction, the second type request corresponding to the first type request is searched from the relationship mapping table to obtain a second type request, where the first type request is carried in the second control instruction.

202: Send a second type of request to the terrestrial network in a wireless manner.

For a networked server of a terrestrial network, a flowchart of a corresponding information processing method is shown in FIG. 3, and may include the following steps:

301: After receiving the second type request corresponding to the first type request, establish a call corresponding to the second type request, where the first type request is sent by a third communication terminal that is registered to the first base station, where the first base station is located. In the underground network, the first type request and the second type request are different types of requests.

302: After establishing a call corresponding to the second type request, obtaining a corresponding request of the second type The first type of request.

303: Send a first type request to the second base station that is normally connected, where the second base station that is normally connected is located in the underground network.

According to the foregoing technical solution, when it is determined that the connection between the first base station and the terrestrial network is disconnected based on the networking situation of the first base station, the first type of request that is sent by the first base station in a wireless manner is received, and may be wirelessly The terrestrial network sends a second type of request corresponding to the first type of request to trigger the terrestrial network to respond to the same indication. That is to say, when the IP link of the first base station and the terrestrial network is faulty, the terrestrial network can receive the second type request corresponding to the same indication in a wireless manner, thereby implementing wireless link backup of the IP link, so that the underground network is in the underground network. Each of the first base stations can be configured with a wireless link, thereby eliminating the need to build infrastructure equipment and laying a wired network for each first base station, reducing investment costs, and reducing active and standby situations in the event of infrastructure problems throughout the site. The probability that the link will fail.

The following describes the information processing method provided by the embodiment of the present invention from the information exchange between the gateway, the communication terminal, and the networked server. The description of the information processing method will be based on the PDT cluster system shown in FIG. 4 as an example.

The PDT cluster system shown in FIG. 4 includes a plurality of PDT base stations (first base stations), a gateway corresponding to each PDT base station, an MPT base station, an MPT switching center, a networked server, and a PDT switching center, wherein the plurality of PDT base stations form an underground network. The MPT base station, the MPT switching center, the networked server, and the PDT switching center constitute a terrestrial network, and the underground network and the terrestrial network are associated through the network.

Each of the PDT base stations in FIG. 4 is registered with at least one third communication terminal (such as the handheld mobile station in FIG. 4), and each PDT base station is connected to the PDT switching center through an IP link, as shown in FIG. PDT base station A, PDT base station B, and PDT base station C. These three PDF base stations are registered with at least one communication terminal, and the networked server needs to be associated with each gateway, PDT switching center, and MPT. The switching center is connected through an IP link. Each of the above gateways corresponds to a PDT base station, and each gateway is connected with an underground PDT communication terminal (the first communication terminal, such as the underground PDT vehicle mobile station in FIG. 4, referred to as the underground PDT vehicle platform) and the ground MPT communication. The terminal (the second communication terminal, such as the ground PDT car mobile station in FIG. 4, referred to as the ground PDT car station), the underground PDT communication terminal responds to the PDT call corresponding to the PDT base station (first type request), and the ground MPT communication terminal responds The MPT call corresponding to the MPT base station (the second type of request), and when the IP link of the PDT base station and the PDT switching center fails, the underground PDT communication terminal -> terrestrial MPT communication terminal -> MPT base station -> MPT switching center - >Networked server->PDT switching center such a path, the PDT call under the disconnected PDT base station can reach the PDT switching center, that is, realize the wireless link backup of the IP link of the underground PDT base station, so that the IP link is disconnected. The PDT base station is still able to communicate with other PDT base stations.

The above MPT refers to the private network MPT cluster communication standard, such as the current MPT 1327 and MPT1343. When any one of the PDT base stations in the PDT cluster system is disconnected from the terrestrial network, the connection of the PDT cluster system is as shown in FIG. 5. In FIG. 5, the connection between the PDF base station A and the PDT base station B is disconnected.

After any PDT base station is disconnected from the terrestrial network, the communication process between the disconnected PDT base station and other PDT base stations is as shown in FIG. 6. FIG. 6 is an example of the PDT base station B in FIG. After the PDT call is initiated, the PDT base station A and the PDT base station C receive the PDT call, which may include the following steps:

601: The gateway B obtains the networking situation of the PDT base station B based on the network connection situation, wherein the network connection situation is the connection situation between the gateway B and the networked server, and if the network connection condition indicates that the connection between the gateway B and the networked server is disconnected, the PDT is obtained. If the connection between the base station B and the ground network is disconnected, if the network connection indicates that the connection between the gateway B and the networked server is normal, the current connection status between the PDT base station B and the PDT switching center needs to be further obtained from the networked server. The connection status indicates that the connection between the PDT base station B and the PDT switching center is disconnected, and a network condition indicating that the connection between the PDT base station B and the terrestrial network is disconnected is obtained.

602: When the networking condition of the PDT base station B indicates that the connection between the PDT base station B and the terrestrial network is disconnected, the gateway B receives the PDT call that is sent by the PDT base station B in a wireless manner, where the PDT call is The third communication terminal registered under the PDT base station B is issued.

603: The gateway B acquires an MPT call corresponding to the PDT call. In the embodiment of the present invention, the gateway B pre-stores the call group correspondence relationship between the PDT system and the MPT system. Therefore, after the gateway B receives any one of the two systems, the gateway B can obtain the corresponding information based on the call group correspondence. Another type of call, such as the above, after receiving a PDT call when the connection between the PDT base station B and the terrestrial network is disconnected, the MPT call corresponding to the PDT call can be obtained based on the call group correspondence.

It should be noted here that the above MPT call is only an example of the second type of request, and other types of calls, such as a TETRA call initiated by a TETRA (Trans European Trunked Radio) communication terminal, may also be used.

604: The gateway B sends a second control instruction to the ground MPT communication terminal connected to the gateway B, where the second control instruction is used to instruct the ground MPT communication terminal to send the MPT call in a wireless manner.

605: The ground MPT communication terminal connected by the gateway B wirelessly transmits the MPT call to the MPT base station of the terrestrial network.

606: The MPT base station establishes an MPT call after receiving the MPT call.

607: After establishing the MPT call, the gateway A and the gateway C obtain the networking situation of the corresponding PDT base stations.

608: When the networking situation of the PDT base station A indicates that the connection between the PDT base station A and the terrestrial network is disconnected, the ground MPT communication terminal connected by the gateway A responds to the MPT call, and obtains a PDT call corresponding to the MPT call through the gateway A, and acquires the manner. It can also be based on the call group correspondence, which is not detailed here.

609: The gateway A sends a first control instruction to the connected underground PDT communication terminal, where the first control instruction is used to instruct the underground PDT communication terminal to send the PDT call in a wireless manner.

610: The underground PDT communication terminal connected by the gateway A initiates a PDT call in a wireless manner, so that the third communication terminal registered under the corresponding PDT base station A can receive the PDT call, and implement the third communication under the two disconnected base stations. Terminal communication.

611: After establishing the MPT call, the MPT base station sends an instruction to the networked server through the MPT call center to instruct the networked server to obtain the PDT call corresponding to the MPT call. Which establishes MPT The process of the call is the same as the prior art, and the embodiment of the present invention will not be described in detail.

612: The networked server obtains a PDT call corresponding to the MPT call, and initiates a PDT call through the PDT switching center, so that the online base station can obtain the PDT call from the PDT switching center through the IP link. The online base station is a normal PDT base station connected to the terrestrial network. If the gateway C determines that the connection between the PDT base station C and the terrestrial network is normal based on the networking situation of the PDT base station C, the PDT base station C is an online base station. The PDT base station C can receive the PDT call sent by the PDT switching center through the IP link, so that the third communication terminal registered under the PDT base station C can receive the PDT call, and implement the third communication terminal under the PDT base station B that is disconnected from the network. Normal traffic between the third communication terminal under the PDT base station C.

It can be known from the above technical solutions that the terrestrial network and the underground network are interconnected through the gateway, thereby ensuring the consistency of the public security command and dispatch, and the above-mentioned multi-type communication terminal and the unified terrestrial network are used to realize the ground between the ground network and the underground network. The backup of the wireless link ensures the robustness of the underground network. In addition, when the IP link of the PDT base station is operating normally, the gateway may use a silent monitoring manner to detect the networking situation of the PDT base station, so that the standby ground MPT communication terminal does not affect the terrestrial network and the underground network, when listening After the connection between the arbitrary PDT base station and the terrestrial network is disconnected, the terrestrial MPT communication terminal corresponding thereto is activated, and the normal communication between the disconnected PDT base station and the other PDT base stations is realized through the terrestrial MPT communication terminal and the terrestrial network.

In the signaling diagram shown in FIG. 6, the MPT call corresponding to the PDT call is obtained by the gateway, and the PDT call corresponding to the MPT call is obtained by the gateway, and then the call is initiated by the corresponding communication terminal. In the embodiment of the present invention, the foregoing call may also be obtained by using a corresponding communication terminal, and the information processing method shown in FIG. 7 may include the following steps:

701: The gateway B obtains the networking situation of the PDT base station B according to the network connection situation, where the network connection situation is the connection situation between the gateway B and the networked server, and if the network connection condition indicates that the connection between the gateway B and the networked server is disconnected, the PDT is obtained. If the connection between the base station B and the ground network is disconnected, if the network connection indicates that the connection between the gateway B and the networked server is normal, the current connection status between the PDT base station B and the PDT switching center needs to be further obtained from the networked server. The current connection status indicates that the connection between the PDT base station B and the PDT switching center is disconnected, and a network condition indicating that the connection between the PDT base station B and the terrestrial network is disconnected is obtained.

702: When the networking condition of the PDT base station B indicates that the connection between the PDT base station B and the terrestrial network is disconnected, the gateway B receives the PDT call that is sent by the PDT base station B in a wireless manner, where the PDT call is the third communication registered to the PDT base station B. The terminal sends out.

703: The gateway B sends a second control instruction to the ground MPT communication terminal to which it is connected, where the second control instruction is used to instruct the ground MPT communication terminal to obtain and wirelessly transmit the MPT call corresponding to the PDT call.

704: The ground MPT communication terminal connected by the gateway B obtains an MPT call corresponding to the PDT call. In the embodiment of the present invention, the ground MPT communication terminal connected by the gateway B pre-stores the call group correspondence relationship between the PDT system and the MPT system, so the ground MPT communication terminal connected by the gateway B receives any one of the two systems. After that, the corresponding another type of call can be obtained based on the call group correspondence. If the PDT call is received after the connection between the PDT base station B and the terrestrial network is disconnected, the PDT can be obtained based on the call group correspondence. Call the corresponding MPT call.

It should be noted here that the above MPT call is only an example of the second type of request, and other types of calls, such as TETRA calls initiated by the TETRA communication terminal, can also be used.

705: The ground MPT communication terminal connected by the gateway B wirelessly transmits the MPT call to the MPT base station of the terrestrial network.

706: The MPT base station establishes an MPT call after receiving the MPT call.

707: After establishing the MPT call, the gateway A and the gateway C obtain the networking situation of the corresponding PDT base stations.

708: When the networking situation of the PDT base station A indicates that the connection between the PDT base station A and the terrestrial network is disconnected, the ground MPT communication terminal connected by the gateway A responds to the MPT call, and sends a first control instruction to the underground PDT communication terminal connected to the gateway A, The first control instruction is used to instruct the underground PDT communication terminal connected by the gateway A to obtain and wirelessly transmit the PDT call corresponding to the MPT call.

709: The underground PDT communication terminal connected by the gateway A obtains a PDT call corresponding to the MPT call. The PDT mode can also be based on the call group correspondence, which is not detailed here.

710: The underground PDT communication terminal connected by the gateway A initiates a PDT call in a wireless manner, so that the third communication terminal registered under the corresponding PDT base station A can receive the PDT call, and implement the third communication under the two disconnected base stations. Terminal communication.

711: After establishing the MPT call, the MPT base station sends an instruction to the networked server through the MPT call center to instruct the networked server to obtain the PDT call corresponding to the MPT call. The process of establishing an MPT call is the same as the prior art, and is not detailed in this embodiment of the present invention.

712: The networked server obtains a PDT call corresponding to the MPT call, and initiates a PDT call through the PDT switching center, so that the online base station can obtain the PDT call from the PDT switching center through the IP link. The online base station is a normal PDT base station connected to the terrestrial network. If the gateway C determines that the connection between the PDT base station C and the terrestrial network is normal based on the networking situation of the PDT base station C, the PDT base station C is an online base station. The PDT base station C can receive the PDT call sent by the PDT switching center through the IP link, so that the third communication terminal registered under the PDT base station C can receive the PDT call, and implement the third communication terminal under the PDT base station B that is disconnected from the network. Normal traffic between the third communication terminal under the PDT base station C.

For the foregoing method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described order of actions, because according to the present invention, Some steps can be performed in other orders or at the same time. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

Please refer to FIG. 8 , which is a schematic structural diagram of an information processing apparatus applied to a gateway, where the gateway is used for communication between an underground network and a terrestrial network, and the gateway can be connected to the first communication terminal and the first embodiment. a communication terminal, the first communication terminal is configured to respond to the first type of request in the underground network, and the second communication terminal is configured to respond to the second type of request in the ground network, wherein the information processing apparatus shown in FIG. The first obtaining unit 11, the receiving unit 12, and the transmitting unit 13.

a first obtaining unit 11 configured to obtain a networking situation of the first base station based on a network connection situation, where The first base station is located in the underground network, wherein the third communication terminal registered under the first base station issues a first type of request.

In the embodiment of the present invention, the network connection situation is a connection situation between the gateway and the networked server. If the network connection status indicates that the connection between the gateway and the networked server is disconnected, the networking condition indicating that the connection between the first base station and the ground network is disconnected is obtained. If the network connection indicates that the connection between the gateway and the networked server is normal, the current connection status between the first base station and the PDT switching center needs to be further obtained from the networked server, and the current connection status indicates the connection between the first base station and the PDT switching center. When disconnected, a networked situation indicating that the connection between the first base station and the terrestrial network is disconnected is obtained.

The receiving unit 12 is configured to receive, when the networking condition of the first base station indicates that the connection between the first base station and the terrestrial network is disconnected, receive the first type request that is sent by the first base station in a wireless manner.

The sending unit 13 is configured to send a second type request corresponding to the first type request to the terrestrial network in a wireless manner, where the first type request and the second type request are different types of requests.

In the embodiment of the present invention, the manner of sending the second type of request includes, but is not limited to, the following two manners. One manner is: the first obtaining unit 11 obtains the second type request corresponding to the first type request, and sends the The unit 13 sends a second control instruction to the second communication terminal, where the second control instruction is used to instruct the second communication terminal to send the second type request in a wireless manner.

In another mode, the sending unit 13 sends a second control command to the second communications terminal, where the second control command carries a first type of request, and is used to instruct the second communications terminal to wirelessly send the first corresponding to the first type of request. Two types of requests.

FIG. 9 is a schematic diagram of another structure of an information processing apparatus applied to a gateway according to an embodiment of the present invention. The method further includes: a second obtaining unit 14 for establishing and After the two types of requests correspond to the call, the networking situation of the other first base stations is obtained, and when the networking situation of the other first base stations indicates that the connection between the other first base stations and the terrestrial network is disconnected, the transmitting unit 13 is triggered in a wireless manner. The first type of request is sent to the other first base stations.

In the embodiment of the present invention, the manner of sending the first type of request includes, but is not limited to, the following manner, where the networking situation of the first base station acquired by the second obtaining unit 14 indicates that the other first base station and the ground When the connection of the network is disconnected, the second obtaining unit 14 obtains a correspondence corresponding to the second type request The first type of request, and the triggering sending unit 13 sends a first control instruction to the first communications terminal, where the first control command is used to instruct the first communications terminal to send the first type of request in a wireless manner.

Another way is: when the networking situation of the other first base station indicates that the connection between the other first base station and the terrestrial network is disconnected, the sending unit 13 sends a first control instruction to the first communication terminal, where the first control instruction is used. The first communication terminal is instructed to obtain and wirelessly transmit a first type of request corresponding to the second type of request.

Referring to FIG. 10, an information processing apparatus applied to a communication terminal according to an embodiment of the present invention is shown. The information processing apparatus may include: a receiving unit 21, a first converting unit 22, and a transmitting unit 23.

The receiving unit 21 is configured to receive the second control instruction.

The first converting unit 22 is configured to obtain, according to the second control instruction, a second type request corresponding to the first type request, where the first type request is sent by the third communication terminal registered under the first base station, where the first base station is located In the underground network, the first type request and the second type request are different types of requests.

The sending unit 23 is configured to send the second type request to the terrestrial network in a wireless manner.

One way in which the second type of request is obtained is that the first converting unit 22 acquires the second type request corresponding to the first type request from the second control instruction after the receiving unit 21 receives the second control instruction.

Another way is: after the receiving unit 21 receives the second control instruction, the first converting unit 22 searches for a second type request corresponding to the first type request from the relationship mapping table to obtain a second type request, wherein The first type of request is carried in the second control instruction.

FIG. 11 is a schematic diagram of another structure of an information processing apparatus applied to a communication terminal according to an embodiment of the present invention. The method further includes: a response unit 24 and a second conversion unit 25.

The response unit 24 is configured to respond to the second type of request by the communication terminal after the call corresponding to the second type request is established and the connection between the other first base station and the terrestrial network is disconnected.

The second converting unit 25 is configured to obtain a first type request corresponding to the second type request after the receiving unit 21 receives the first control instruction, and trigger the sending unit 23 to wirelessly send the first type to the other first base station. A type of request.

One way in which the second conversion unit 25 obtains the first type request is: the second conversion unit 25 acquires the first corresponding to the second type request from the first control instruction after the receiving unit 21 receives the first control instruction. A type of request.

Another way is: after receiving the first control instruction, the second converting unit 25 searches for a first type request corresponding to the second type request from the relationship mapping table to obtain a first type request, wherein The second type of request is carried in the first control instruction.

FIG. 12 is a schematic structural diagram of an information processing apparatus applied to a terrestrial network according to an embodiment of the present invention, which may include: an establishing unit 31, an obtaining unit 32, and a sending unit 33.

The establishing unit 31 is configured to: after receiving the second type request corresponding to the first type request, establish a call corresponding to the second type request, where the first type request is sent by the third communication terminal registered under the first base station, The first base station is located in the underground network, and the first type of request and the second type of request are different types of requests.

The obtaining unit 32 is configured to obtain a first type request corresponding to the second type request after establishing a call corresponding to the second type request.

The sending unit 33 is configured to send a first type request to the second base station that is normally connected, where the second base station that is normally connected is located in the underground network.

According to the foregoing technical solution, when it is determined that the connection between the first base station and the terrestrial network is disconnected based on the networking situation of the first base station, receiving the first type request that is sent by the first base station in a wireless manner, and A second type of request corresponding to the first type of request may be sent to the terrestrial network in a wireless manner to trigger the terrestrial network to respond to the same indication. That is to say, when the IP link of the first base station and the terrestrial network is faulty, the terrestrial network can receive the second type request corresponding to the same indication in a wireless manner, thereby implementing wireless link backup of the IP link, so that the underground network is in the underground network. Each of the first base stations can be configured with a wireless link, thereby eliminating the need to build infrastructure equipment and laying a wired network for each first base station, reducing investment costs, and reducing active and standby situations in the event of infrastructure problems throughout the site. The probability that the link will fail.

Referring to FIG. 13 , it is a schematic structural diagram of a gateway provided by an embodiment of the present invention, where a gateway is used for communication between an underground network and a terrestrial network, and a gateway may be connected to the first communication terminal and the second communication terminal. The communication terminal is configured to respond at least to the first type of request in the underground network, and the second communication terminal is configured to respond at least to the second type of request in the terrestrial network, the gateway comprising: a transmitter, a receiver, and a processor, and the transmitter and the receiver are configured Communication component.

And a communication component, configured to obtain a networking situation of the first base station based on a network connection situation, where the first base station is located in the underground network, and the third communication terminal registered under the first base station issues the first type request.

a processor, configured to determine, according to a networking situation of the first base station, disconnection of the first base station from the terrestrial network, and trigger the communication component to receive the first type of request that the first base station sends wirelessly and trigger the communication component to be wireless A second type of request corresponding to the first type of request is sent to the terrestrial network, the first type of request and the second type of request being different types of requests.

Referring to FIG. 14, which is a schematic structural diagram of a communication terminal according to an embodiment of the present invention, the communication terminal may include: a transmitter, a receiver, and a processor, and the transmitter and the receiver constitute a communication component.

a communication component, configured to receive a second control instruction.

a processor, configured to obtain a second type corresponding to the first type request according to the second control instruction And triggering a communication component to wirelessly transmit a second type of request to the terrestrial network, wherein the first type of request is sent by a third communication terminal registered under the first base station, the first base station is located in the underground network, and the first type of request And the second type of request is a different type of request.

Referring to FIG. 15, a schematic structural diagram of a communication device according to an embodiment of the present invention is shown. The communication device may include: a transmitter, a receiver, and a processor, and the transmitter and the receiver constitute a communication component.

a processor, configured to: after the communication component receives the second type request corresponding to the first type request, establish a call corresponding to the second type request, and after establishing the call corresponding to the second type request, obtain a request corresponding to the second type request Corresponding the first type of request, and triggering the communication component to send the first type of request to the second base station that is connected normally.

The first type of request is sent by the third communication terminal that is registered under the first base station, the first base station is located in the underground network, and the first type request and the second type request are different types of requests, and the second connected base station is located underground. In the network.

In the embodiment of the present invention, the specific implementation process of the functions of the foregoing information processing apparatus, the gateway, the communication terminal, and the communication device, refer to the related description in the foregoing method embodiments, and the present invention is implemented. The examples are not elaborated.

Finally, it should also be noted that in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities. There is any such actual relationship or order between operations. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

An information processing method, wherein the method is applied to a gateway, the gateway is used for communication between an underground network and a terrestrial network, and the gateway is connectable to the first communication terminal and the second communication terminal, where the first The communication terminal is configured to respond at least to the first type of request in the underground network, and the second communication terminal is configured to respond to at least the second type of request in the terrestrial network, the method comprising:

Obtaining a networking situation of the first base station, where the first base station is located in the underground network, where the third communication terminal registered under the first base station issues the first type request;

Receiving, when the networked condition of the first base station indicates that the connection between the first base station and the terrestrial network is disconnected, receiving the first type request that is sent by the first base station in a wireless manner;

Transmitting, to the terrestrial network, a second type of request corresponding to the first type of request, the first type of request and the second type of request being different types of requests.
The method of claim 1, wherein the transmitting, by the wireless manner, the second type of request corresponding to the first type of request to the terrestrial network comprises:

Obtaining a second type request corresponding to the first type request;

Sending, to the second communication terminal, a second control instruction, where the second control instruction is used to instruct the second communication terminal to send the second type request in a wireless manner;

or

Transmitting, to the second communication terminal, a second control instruction, where the second control instruction carries the first type request, and is configured to instruct the second communication terminal to wirelessly send, corresponding to the first type of request The second type of request.
The method of claim 1 further comprising:

After establishing a call corresponding to the second type of request, obtaining networking conditions of other first base stations;

And when the networking condition of the other first base station indicates that the connection of the other first base station to the terrestrial network is disconnected, the first type request is sent to the other first base station in a wireless manner.
The method of claim 3 wherein said other first base When the networking condition of the station indicates that the connection between the other first base station and the terrestrial network is disconnected, transmitting the first type request to the other first base station in a wireless manner includes:

Obtaining a first type request corresponding to the second type request when the networking condition of the other first base station indicates that the connection of the other first base station to the terrestrial network is disconnected;

Sending, by the first communications terminal, a first control instruction, where the first control command is used to instruct the first communications terminal to send the first type request in a wireless manner;

or

When the networking condition of the other first base station indicates that the connection between the other first base station and the terrestrial network is disconnected, sending a first control instruction to the first communication terminal, where the first control instruction is used And instructing the first communication terminal to obtain and wirelessly transmit a first type request corresponding to the second type request.
The method according to claim 3, wherein when the networking request of the other first base station indicates that the connection of the other first base station to the terrestrial network is normal, the terrestrial network directly goes to the other first The base station transmits the first type of request.
An information processing method, which is applied to a communication terminal, the method comprising:

Receiving a second control instruction, according to which the second type request corresponding to the first type request is obtained, wherein the first type request is sent by a third communication terminal registered under the first base station, The first base station is located in the underground network, and the first type request and the second type request are different types of requests;

The second type of request is sent to the terrestrial network in a wireless manner.
The method according to claim 6, wherein after receiving the second control instruction, obtaining the second type request corresponding to the first type request comprises:

After receiving the second control instruction, acquiring a second type request corresponding to the first type request from the second control instruction;

or

After receiving the second control instruction, searching for the second type request corresponding to the first type request from a relationship mapping table to obtain the second type request, where the first type is requested The request is carried in the second control instruction.
The method of claim 6 wherein the method further comprises:

After the call corresponding to the second type request is established and the connection between the other first base station and the terrestrial network is disconnected, the second type request is responded to by the communication terminal;

After receiving the first control instruction, obtaining the first type request corresponding to the second type request;

The first type of request is sent to the other first base station in a wireless manner.
The method according to claim 8, wherein the obtaining the first type of request corresponding to the second type of request after receiving the first control instruction comprises:

After receiving the first control instruction, acquiring a first type request corresponding to the second type request from the first control instruction;

or

After receiving the first control instruction, searching for the first type request corresponding to the second type request from a relationship mapping table to obtain the first type request, wherein the second type request Carryed in the first control instruction.
An information processing method is characterized in that it is applied to a terrestrial network, and the method includes:

After receiving the second type request corresponding to the first type request, establishing a call corresponding to the second type request, where the first type request is sent by a third communication terminal registered under the first base station, The first base station is located in the underground network, and the first type request and the second type request are different types of requests;

After establishing the call corresponding to the second type request, obtaining a first type request corresponding to the second type request;

The first type of request is sent to the second base station that is normally connected, and the second base station that is normally connected is located in the underground network.
An information processing apparatus, wherein the apparatus is applied to a gateway, the gateway is used for communication between an underground network and a terrestrial network, and the gateway is connectable to the first communication terminal and the second communication terminal, the first The communication terminal is configured to respond at least to the first type of request in the underground network, the The second communication terminal is configured to respond to at least the second type of request in the terrestrial network, and the apparatus includes:

a first obtaining unit, configured to obtain, according to a network connection situation, a networking situation of the first base station, where the first base station is located in the underground network, where a third communication terminal registered under the first base station issues the first a type of request;

a receiving unit, configured to: when the networked condition of the first base station indicates that the connection between the first base station and the terrestrial network is disconnected, receive the first type request that is sent by the first base station in a wireless manner;

And a sending unit, configured to send, to the terrestrial network, a second type of request corresponding to the first type of request, where the first type request and the second type request are different types of requests.
The apparatus according to claim 11, wherein the first obtaining unit is configured to obtain a second type request corresponding to the first type request;

The sending unit is configured to send a second control instruction to the second communications terminal, where the second control command is used to instruct the second communications terminal to send the second type request in a wireless manner;

or

The sending unit is configured to send a second control instruction to the second communications terminal, where the second control command carries the first type request, and is used to instruct the second communications terminal to send and transmit in a wireless manner A second type of request corresponding to the first type of request.
The device according to claim 11, wherein the device further comprises: a second obtaining unit, configured to obtain a network situation of the other first base station after establishing a call corresponding to the second type request, and When the networking condition of the other first base station indicates that the connection between the other first base station and the terrestrial network is disconnected, triggering, by the sending unit, to wirelessly send the first to the other first base station. Type request.
The apparatus according to claim 13, wherein the second obtaining unit is further configured to: when the networking situation of the other first base station indicates that the other first base station is disconnected from the terrestrial network Opening, obtaining a first type request corresponding to the second type request, and triggering the sending unit to send a first control instruction to the first communication terminal, where the first control instruction is used to indicate the first communication terminal Transmitting the first type request in a wireless manner;

Or

The sending unit is configured to send a first control instruction to the first communication terminal when the networking situation of the other first base station indicates that the connection between the other first base station and the terrestrial network is disconnected, The first control instruction is used to instruct the first communication terminal to obtain and wirelessly transmit a first type request corresponding to the second type request.
An information processing apparatus, which is applied to a communication terminal, the apparatus comprising:

a receiving unit, configured to receive a second control instruction;

a first conversion unit, configured to obtain, according to the second control instruction, a second type request corresponding to the first type of request, where the first type request is sent by a third communication terminal registered under the first base station, where The first base station is located in an underground network, and the first type request and the second type request are different types of requests;

And a sending unit, configured to send the second type request to the terrestrial network in a wireless manner.
The device according to claim 15, wherein the first converting unit is configured to acquire, after the receiving unit receives the second control instruction, the second control instruction a type request corresponding to a second type of request;

or

The first converting unit is configured to: after the receiving unit receives the second control instruction, look up the second type request corresponding to the first type request from a relationship mapping table to obtain a A second type of request, wherein the first type of request is carried in the second control instruction.
The device according to claim 15, wherein the device further comprises:

a response unit, configured to respond to the second type request by the communication terminal after establishing a call corresponding to the second type request and the connection between the other first base station and the terrestrial network is disconnected;

a second converting unit, configured to: after the receiving unit receives the first control instruction, obtain the first type request corresponding to the second type request, and trigger the sending unit to wirelessly The other first base station transmits the first type of request.
The apparatus according to claim 17, wherein the second converting unit is configured to acquire, after the receiving unit receives the first control instruction, the first control instruction The second type request corresponding to the first type request;

or

The second converting unit is configured to: after the receiving unit receives the first control instruction, look up the first type request corresponding to the second type request from a relationship mapping table to obtain a A first type of request, wherein the second type of request is carried in the first control instruction.
An information processing apparatus, which is applied to a terrestrial network, the apparatus comprising:

a establishing unit, configured to establish, after receiving the second type request corresponding to the first type request, a call corresponding to the second type request, where the first type request is configured by a third communication registered under the first base station The terminal sends out that the first base station is located in an underground network, and the first type request and the second type request are different types of requests;

An obtaining unit, configured to obtain a first type request corresponding to the second type request after establishing a call corresponding to the second type request;

And a sending unit, configured to send the first type of request to a second base station that is normally connected, where the second base station that is normally connected is located in an underground network.
A gateway, wherein the gateway is used for communication between an underground network and a terrestrial network, and the gateway is connectable to the first communication terminal and the second communication terminal, and the first communication terminal is configured to respond to at least the underground a first type of request in the network, the second communication terminal being configured to respond at least to a second type of request in the terrestrial network, the gateway comprising:

a communication component, configured to obtain a networking situation of the first base station based on a network connection situation, where the first base station is located in the underground network, where a third communication terminal registered under the first base station issues the first type request;

a processor, configured to determine, according to the networking situation of the first base station, that the connection between the first base station and the terrestrial network is disconnected, and trigger the communication component to receive the wirelessly sent by the first base station Determining the first type of request and triggering the communication component to wirelessly transmit a second type of request corresponding to the first type of request to the terrestrial network, the first type request and the second type request being different Type request.
A communication terminal, characterized in that the communication terminal comprises:

a communication component, configured to receive a second control instruction;

a processor, configured to obtain a second type request corresponding to the first type request according to the second control instruction, and trigger the communication component to wirelessly send the second type request to a terrestrial network, where the A type request is issued by a third communication terminal registered under the first base station, the first base station is located in an underground network, and the first type request and the second type request are different types of requests.
A communication device, characterized in that it is applied to a terrestrial network, the communication device comprising: a communication component and a processor;

The processor is configured to: after the communication component receives the second type request corresponding to the first type request, establish a call corresponding to the second type request, after establishing the call corresponding to the second type request Obtaining a first type request corresponding to the second type of request, and triggering the communication component to send the first type request to a second base station that is normally connected;

The first type request is sent by a third communication terminal registered under the first base station, the first base station is located in an underground network, and the first type request and the second type request are different types of requests, The second base station that is normally connected is located in the underground network.