A method for telephone intercommunication between a satellite communication network and a super-short wave communication network

Abstract

The application discloses a satellite communication network and ultrashort wave communication network telephone intercommunication method, and relates to the wireless emergency communication field. The application uniformly numbers the user telephone numbers of the ultrashort wave communication network and the satellite communication network, and provides protocol interaction and addressing link establishment functions for the telephone intercommunication between the two networks through the switching adaptation module integrated in the satellite communication terminal. The ultrashort wave communication network user calls the satellite communication network user by adopting a twice dialing system; and the satellite communication network user calls the ultrashort wave communication network user by adopting a network number search system. The application realizes voice automatic switching between the ultrashort wave communication network and the satellite communication network, simplifies the cross-network voice call flow between heterogeneous networks, and promotes the organic integration and complementary advantages of the two networks.

Description

Technical Field

[0001] This invention relates to the field of wireless emergency communication, and in particular to a method for telephone interconnection between a satellite communication network and an ultra-shortwave communication network. Background Technology

[0002] In the face of sudden natural disasters or emergencies, especially complex cross-regional disasters, basic communication infrastructure is easily damaged and disrupted, and traditional communication equipment signals malfunction. To ensure communication in disaster areas, it is necessary to comprehensively utilize various communication resources for rescue, emergency relief, and service support. Satellite communication and ultra-shortwave communication are important communication methods. Due to the flexible networking, rapid communication, and mobility of ultra-shortwave radios, they can be equipped by emergency rescue teams in disaster areas for line-of-sight network communication support. Satellite communication has advantages such as large communication range, long distance, less susceptibility to geographical environment, and fast construction speed. It can quickly establish a satellite communication network from the disaster area to the rear emergency support agencies, achieving stable and reliable long-distance communication.

[0003] In practical applications, each communication method has its limitations. Emergency communication support cannot rely on a single method; it needs to integrate multiple communication methods based on the requirements and technical characteristics of the emergency communication scenario to build a highly reliable, adaptable, and complementary emergency communication system. Currently, the various existing communication support methods are technologically diverse, making effective integration and interconnection difficult. Each network system operates independently, lacking a unified, well-planned, and highly coordinated communication support system that integrates multiple communication methods, hindering inter-departmental collaboration and unified coordinated application. Summary of the Invention

[0004] In view of this, the present invention proposes a method for telephone interoperability between a satellite communication network and an ultra-shortwave communication network. When external information needs to be transmitted to the communication system via ultra-shortwave or satellite, two-way telephone communication between the ultra-shortwave network and the satellite network can be achieved directly through dialing. This method enables automatic voice transfer between heterogeneous networks without the need for manual secondary relay. This method organically integrates different communication modes, enabling their collaborative application in complex and ever-changing emergency environments.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A method for telephone interconnection between a satellite communication network and an ultra-shortwave communication network involves uniformly numbering the user telephone numbers of the ultra-shortwave communication network and the satellite communication network, and interconnecting between a radio station in each ultra-shortwave communication network and a satellite communication terminal in the satellite communication network. The satellite communication terminal integrates a switching adaptation module, which provides protocol interaction and addressing link establishment functions for telephone interconnection between the ultra-shortwave communication network and the satellite communication network.

[0007] When a user in an ultra-shortwave communication network calls a user in a satellite communication network, a two-step dialing system is used;

[0008] When a user in a satellite communication network calls a user in an ultra-shortwave communication network, an intra-network number search system is used.

[0009] Furthermore, when a user in the VHF / UHF communication network calls a user in the satellite communication network, a two-step dialing system is used; specifically, this includes the following steps:

[0010] Step a1: Ultra-shortwave radio station A in the ultra-shortwave communication network acts as the calling user and makes a voice dialing call. First, it calls ultra-shortwave radio station B, which is connected to the satellite communication network. After receiving the voice signaling, ultra-shortwave radio station B distinguishes the user's phone number. If it is a satellite communication number, it transmits the voice signaling to the satellite communication terminal C connected to it. The switching and adaptation module in satellite communication terminal C converts the voice signaling from the ultra-shortwave side into voice signaling from the satellite communication side for reception.

[0011] Step a2: Satellite communication terminal C determines the destination satellite communication terminal D based on the user number called in the voice signaling, and requests a satellite channel voice transmission time slot between satellite communication terminal C and satellite communication terminal D;

[0012] Step a3: After the time slot application is successful, the satellite communication terminal C packages the voice signaling and sends it to the destination satellite communication terminal D. The satellite communication terminal D unpacks the voice signaling and sends it to the local telephone terminal for ringing.

[0013] Step a4: Satellite communication terminal D determines the reverse satellite communication destination station, satellite communication terminal C, packages the data according to the frame format, and requests the reverse voice transmission time slot of the satellite channel between satellite communication terminal D and satellite communication terminal C.

[0014] Step a5: When the time slot application is successful, the satellite communication terminal D goes off-hook, and the VHF radio A is called off-hook after hearing the ringback tone.

[0015] Step a6: The VHF radio A and the satellite communication terminal D communicate with each other. Both parties package their service data into frames and send them to each other. The other party unpacks the data after receiving it.

[0016] Step a7: After the call ends, both the VHF radio A and the satellite communication terminal D release their transmission time slots, and both telephone operators hang up.

[0017] Furthermore, when a user in a satellite communication network calls a user in an ultra-shortwave communication network, an intra-network number search system is used; specifically, this includes the following steps:

[0018] Step b1: Satellite communication terminal D within the satellite communication network acts as the calling user and initiates a network number search using the broadcast channel of the satellite communication network;

[0019] In step b2, the satellite communication terminal receiving the number search within the satellite communication network forwards the search signaling to the VHF radio station B connected to it through the local switching adaptation module. If the VHF radio station B finds user A called by satellite communication terminal D in the VHF communication network, it will respond to the search through the satellite communication terminal C connected to it; if user A called by satellite communication terminal D does not exist, it will not respond.

[0020] Step b3: If satellite communication terminal C responds to the search, then satellite communication terminal D requests a satellite communication channel voice transmission time slot between satellite communication terminal D and satellite communication terminal C based on the responding terminal address.

[0021] Step b4: After the time slot application is successful, the satellite communication terminal D packages the voice signaling and sends it to the destination satellite communication terminal C. The satellite communication terminal C unpacks the voice signaling and converts the voice signaling on the satellite communication side into voice signaling on the VHF side through the switching adapter module. Then it transmits it to the connected VHF radio station B, and VHF radio station B sends it to VHF radio station A to ring.

[0022] Step b5: Satellite communication terminal C determines the reverse satellite communication destination station, satellite communication terminal D, packages the data according to the frame format, and requests the reverse voice transmission time slot of the satellite channel between satellite communication terminal C and satellite communication terminal D.

[0023] Step b6: When the time slot application is successful, the VHF radio A goes off-hook, and the satellite communication terminal D is called off-hook after hearing the ringback tone.

[0024] In step b7, the VHF radio A and the satellite communication terminal D communicate with each other. Both parties package their service data into frames and send them to each other. The other party then unpacks the data upon receiving it.

[0025] Step b8: After the call ends, both the VHF radio A and the satellite communication terminal D release their transmission time slots, and both telephone operators hang up.

[0026] Due to the adoption of the above technical solution, the beneficial effects of this invention compared with the prior art are as follows:

[0027] 1. Under the communication method of the present invention, external information can be directly transmitted to the internal system across networks, simplifying the voice call process and more effectively combining satellite communication networks and ultra-shortwave communication networks to form a rapid, accurate and reliable collaborative communication system.

[0028] 2. Compared with traditional single emergency communication support methods, the present invention has the advantages of being fast, convenient, efficient, highly operable, and relatively mature in technology, and has a certain promoting effect on improving the efficiency of emergency communication support. Attached Figure Description

[0029] Figure 1 This is a network connection diagram of a method for telephone interconnection between a satellite communication network and an ultra-shortwave communication network according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram illustrating the process of a user A in an ultra-shortwave communication network calling a user D in a satellite communication network, as described in an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram illustrating the process of satellite communication network user D calling ultra-shortwave communication network user A in an embodiment of the present invention. Detailed Implementation

[0032] The invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] A method for telephone interconnection between a satellite communication network and an ultra-shortwave communication network, such as... Figure 2 , Figure 3 As shown, the call process is divided into two types according to the initiating user: UHF / UHF communication network user calling satellite communication network user and satellite communication network user calling UHF / UHF communication network user.

[0034] (1) User A of the VHF / UHF communication network calls user D of the satellite communication network:

[0035] like Figure 2 As shown, it includes the following steps:

[0036] Step 1: Radio station A in the VHF communication network acts as the calling user and makes a voice dialing. It first calls VHF radio station B, which is connected to the satellite communication network. After receiving the dialing tone, VHF radio station B distinguishes the user's number. If it is a satellite communication number, the switching and adaptation module converts the voice signaling on the VHF side into voice signaling on the satellite communication side and sends it to the local satellite terminal C.

[0037] The switching adapter module resolves the incompatibility issue between VHF radios and satellite communication terminals, enabling the two types of equipment to work together. When the voice coding of the VHF communication network user differs from that of the satellite communication network, the switching adapter module performs voice coding conversion. The switching adapter module can also perform addressing based on the destination address, establishing a routing table between the sending and receiving users.

[0038] The VHF radio and the satellite communication terminal are connected via a control channel and a voice channel. The control channel is used to control signaling transmission, number transmission, etc.; the voice channel is used for voice communication between the two parties.

[0039] When VHF radio B calls satellite terminal C, it uses a two-step dialing method. If the user number is a satellite communication number, it continues dialing to connect to satellite terminal C; if the user number is not a satellite communication number, the operation is terminated.

[0040] If the VHF radio station B connected to the satellite communication network is the calling user, then the VHF voice signaling is directly transmitted to the satellite terminal C, and the switching adapter module in the satellite terminal C converts it into voice signaling received from the satellite communication side.

[0041] Step 2: Satellite communication terminal C determines the destination based on the calling user's number and applies to the network management center for a satellite channel transmission time slot;

[0042] The satellite network management center coordinates the normal operation of each station, including the network access and address allocation of satellite communication terminals, to ensure the normal operation of the satellite communication network and allocate transmission time slots to terminals that apply for satellite communication channels.

[0043] If satellite terminal C is the destination, then satellite terminal C directly communicates with the VHF side via the switching adapter module.

[0044] Step 3: After the time slot application is successful, the satellite communication terminal C packages the service data and sends it to the destination satellite communication terminal D. The satellite communication terminal D unpacks the service data and sends it to the local telephone terminal for ringing.

[0045] Step 4: Satellite communication terminal D determines the destination station, packages the data according to the frame format, and requests a transmission time slot;

[0046] Step 5: When the time slot application is successful, the satellite communication terminal D goes off-hook, and the VHF radio A is called off-hook after hearing the ringback tone.

[0047] Step 6: The VHF radio A and the satellite communication terminal D communicate with each other. Both parties package their service data into frames and send them to each other. The other party unpacks the data after receiving it.

[0048] Step 7: After the call ends, both the VHF radio A and the satellite communication terminal D release their transmission time slots, and both telephone operators hang up.

[0049] (2) Satellite communication network user D calls ultra-shortwave communication network user A:

[0050] like Figure 3 As shown, the present invention includes the following steps:

[0051] Step 1: Satellite communication network user D initiates an intra-network number search using the satellite communication network's broadcast channel;

[0052] Satellite terminal C performs a full search within its coverage area via a broadcast channel, searching all neighboring nodes and determining if a destination node exists. If the destination node is not found, it searches for first-level, second-level, and third-level relay nodes connected to the destination node, continuing until a path connecting to the destination node is found. If no path is found, the search fails. If multiple links with the same number of relay nodes are found during the search, the one with the lowest cost is selected as the optimal path.

[0053] If the VHF / UHF communication network connected to satellite terminal D includes VHF / UHF communication network user A, then satellite terminal D can directly communicate with the VHF / UHF side via a switching adapter module.

[0054] Step 2: The satellite communication terminal receiving the number search within the network forwards the search signaling to the local radio station through the local switching adaptation module. If the local radio station has a user A calling from the satellite communication network, it will respond to the search through the satellite communication terminal C connected to it; if the local radio station does not have a user A calling from the satellite communication network, it will not respond.

[0055] Step 3: After the satellite communication terminal C responds to the search, it applies to the network management center for a satellite communication channel based on the responding terminal address.

[0056] Step 4: After the time slot application is successful, the satellite communication terminal D packages the service data and sends it to the destination station C. The satellite communication terminal C unpacks the service data and sends it to the VHF radio station A to ring.

[0057] Step 5: VHF radio station A determines the destination station, packages the data in frame format, and requests a transmission time slot;

[0058] Step 6: When the time slot application is successful, the VHF radio A goes off-hook, and the satellite communication terminal D is called off-hook after hearing the ringback tone.

[0059] Step 7: The VHF radio A and the satellite communication terminal D communicate with each other. Both parties package their service data into frames and send them to each other. The other party unpacks the data after receiving it.

[0060] Step 8: After the call ends, both the VHF radio A and the satellite communication terminal D release their transmission time slots, and both telephone operators hang up.

[0061] Specifically, the satellite communication terminal integrates a switching adapter module that connects to the voice and control ports of the VHF radio, as shown in the diagram. Figure 1 As shown, user phone numbers in the VHF and satellite communication networks are uniformly numbered. In each VHF network, a radio station can be selected to interconnect with a satellite communication terminal in the satellite communication network. The switching adapter module integrated inside the satellite communication terminal provides protocol interaction and addressing link establishment functions for telephone communication between the two networks.

[0062] Those skilled in the art will recognize that the described embodiments are intended to help readers understand the principles of the invention and should be understood as not limiting the scope of protection of the invention to the described embodiments. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of the claims of the invention.

Claims

1. A method for telephone interconnection between a satellite communication network and an ultra-shortwave communication network, characterized in that, User telephone numbers in the UHF and satellite communication networks are uniformly numbered. A radio station in each UHF network and a satellite communication terminal in the satellite communication network are selected for interconnection. The satellite communication terminal integrates a switching adapter module, which is used to provide protocol interaction and addressing link establishment functions for telephone interconnection between the UHF and satellite communication networks. When a user in an ultra-shortwave communication network calls a user in a satellite communication network, a two-step dialing system is used; specifically, the following steps are included: Step a1: Ultra-shortwave radio station A in the ultra-shortwave communication network acts as the calling user and makes a voice dialing call. First, it calls ultra-shortwave radio station B, which is connected to the satellite communication network. After receiving the voice signaling, ultra-shortwave radio station B distinguishes the user's phone number. If it is a satellite communication number, it transmits the voice signaling to the satellite communication terminal C connected to it. The switching and adaptation module in satellite communication terminal C converts the voice signaling from the ultra-shortwave side into voice signaling from the satellite communication side for reception. Step a2: Satellite communication terminal C determines the destination satellite communication terminal D based on the user number called in the voice signaling, and requests a satellite channel voice transmission time slot between satellite communication terminal C and satellite communication terminal D; Step a3: After the time slot application is successful, the satellite communication terminal C packages the voice signaling and sends it to the destination satellite communication terminal D. The satellite communication terminal D unpacks the voice signaling and sends it to the local telephone terminal for ringing. Step a4: Satellite communication terminal D determines the reverse satellite communication destination station, satellite communication terminal C, packages the data according to the frame format, and requests the reverse voice transmission time slot of the satellite channel between satellite communication terminal D and satellite communication terminal C. Step a5: When the time slot application is successful, the satellite communication terminal D goes off-hook, and the VHF radio A is called off-hook after hearing the ringback tone. Step a6: The VHF radio A and the satellite communication terminal D communicate with each other. Both parties package their service data into frames and send them to each other. The other party unpacks the data after receiving it. Step a7: After the call ends, both the VHF radio A and the satellite communication terminal D release their transmission time slots, and both telephone terminals hang up. When a user in a satellite communication network calls a user in an ultra-shortwave communication network, an intra-network number search system is used; specifically, the following steps are included: Step b1: Satellite communication terminal D within the satellite communication network acts as the calling user and initiates a network number search using the broadcast channel of the satellite communication network; In step b2, the satellite communication terminal receiving the number search within the satellite communication network forwards the search signaling to the VHF radio station B connected to it through the local switching adaptation module. If the VHF radio station B finds user A called by satellite communication terminal D in the VHF communication network, it will respond to the search through the satellite communication terminal C connected to it; if user A called by satellite communication terminal D does not exist, it will not respond. Step b3: If satellite communication terminal C responds to the search, then satellite communication terminal D requests a satellite communication channel voice transmission time slot between satellite communication terminal D and satellite communication terminal C based on the responding terminal address. Step b4: After the time slot application is successful, the satellite communication terminal D packages the voice signaling and sends it to the destination satellite communication terminal C. The satellite communication terminal C unpacks the voice signaling and converts the voice signaling on the satellite communication side into voice signaling on the VHF side through the switching adapter module. Then it transmits it to the connected VHF radio station B, and VHF radio station B sends it to VHF radio station A to ring. Step b5: Satellite communication terminal C determines the reverse satellite communication destination station, satellite communication terminal D, packages the data according to the frame format, and requests the reverse voice transmission time slot of the satellite channel between satellite communication terminal C and satellite communication terminal D. Step b6: When the time slot application is successful, the VHF radio A goes off-hook, and the satellite communication terminal D is called off-hook after hearing the ringback tone. In step b7, the VHF radio A and the satellite communication terminal D communicate with each other. Both parties package their service data into frames and send them to each other. The other party then unpacks the data upon receiving it. Step b8: After the call ends, both the VHF radio A and the satellite communication terminal D release their transmission time slots, and both telephone operators hang up.

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