FDMA satellite communication network multistage management system based on hybrid management channel

Abstract

The invention discloses an FDMA satellite communication network multi-stage management system based on a hybrid management channel. The FDMA satellite communication network multi-stage management system comprises a first-stage network management center, a plurality of second-stage network management centers and a plurality of third-stage network management stations belonging to the second-stage network management centers, a ground private network is established between the primary network management center and the secondary network management center; a TDMA satellite communication network network is established between each second-level network management center and a plurality of subordinate third-level network management stations; the third-level network management station is used for managing equipment in the earth station; the secondary network management center is used for centrally managing the state and parameters of each station device in the area; and the primary network management center is used for managing the whole satellite communication network. According to the system, a three-level management architecture adopting a centralized management mode is designed, and equipment management and resource management are completed through mutual cooperation; a ground special line and a TDMA satellite communication network are combined to manage a channel, so that the limitation of a service communication satellite is eliminated, and the defect that a reverse ALOHA is easy to conflict and collide is overcome; and the flexibility and the expansibility of multi-satellite networking are improved.

Description

Technical Field

[0001] The present invention relates to the field of satellite communication technology, and more specifically to a FDMA satellite communication network multi-level management system based on a hybrid management channel. Background Art

[0002] At present, the network management of satellite communication networks requires the independent construction of management channels for centralized control of the equipment at each earth station. Currently, the management channels of FDMA satellite communication networks mostly adopt the TDM / ALOHA mode, that is, an additional frequency is reserved in the satellite for business communications as a management channel, which is characterized by forward broadcast and reverse short burst.

[0003] This method has some problems. First, the management capacity is limited. Since the reverse ALOHA mode is prone to management signaling conflicts, the more management nodes there are, the higher the probability of conflicts. The confirmation retransmission mechanism will make the problem more serious.

[0004] Secondly, the flexibility and scalability of multi-satellite networking are poor. In management mode, management channel parameters need to be configured and debugged when the earth station changes satellites, and when the satellite communication network adds satellites or transponders, new management channels need to be reset.

[0005] For satellite communication systems that require high reliability and openness, the TDM / ALOHA mode cannot meet their requirements. Therefore, how to use different management channels to uniformly control each earth station in the FDMA satellite communication network has become an urgent problem that technical personnel in this field need to solve. Summary of the invention

[0006] In view of this, and in view of the shortcomings of the existing TDM / ALOHA mode, the present invention proposes a FDMA satellite communication network multi-level management system based on a hybrid management channel.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] The embodiment of the present invention provides a FDMA satellite communication network multi-level management system based on a hybrid management channel, comprising: at least one primary network management center, a corresponding plurality of secondary network management centers, and a plurality of tertiary network management stations belonging to each secondary network management center;

[0009] Wherein, a ground private network is established between the first-level network management center and the second-level network management center as the ground network management network of the first / second-level network management center;

[0010] Establish a TDMA satellite communication network management network between each secondary network management center and multiple subordinate tertiary network management stations;

[0011] The third-level network management station is used to manage the equipment in the earth station through the TDMA satellite communication network management network;

[0012] The secondary network management center is used to centrally manage the status and parameters of each station equipment in the area using the TDMA satellite communication network management network and the ground dedicated network;

[0013] The first-level network management center is used to use the ground-based private network to complete the management of the entire satellite communication network, including network-wide equipment management and resource management.

[0014] Furthermore, a TDMA satellite communication network management network is established between the primary network management center and the secondary network management center, and management signaling is transmitted through the TDMA satellite communication network management network.

[0015] Furthermore, the first-level network management center, each second-level network management center and each subordinate third-level network management station are individually equipped with TDMA communication terminal equipment; an independent TDMA satellite communication network management network is constructed in this area, and the FDMA satellite communication service network is established through the control of the TDMA satellite communication network management network.

[0016] Furthermore, the third-level network management station is specifically used to accept the management of the first-level network management center and / or the second-level network management center. After completing the network access through authentication and authorization, the local equipment working status, parameters and alarm information are reported to the second-level network management center through the TDMA satellite communication network management channel, to assist the second-level network management center in completing the centralized management of the area.

[0017] Furthermore, the third-level network management station directly under the first-level network management center reports local information directly to the first-level network management center through the TDMA satellite communication network management network channel.

[0018] Furthermore, the secondary network management center is specifically used to summarize the equipment working status, parameters and alarm information reported by each tertiary network management station in the area through the TDMA satellite communication network management network, and then report to the primary network management center through the ground dedicated network.

[0019] Furthermore, the first-level network management center is specifically used to use the ground-based private network and / or TDMA satellite communication network management network to complete the management of all the satellite network sites;

[0020] The whole-site site management includes the management of basic information of the earth station's longitude and latitude, antenna aperture, and power amplifier size.

[0021] Furthermore, the first-level network management center is specifically used to use the ground dedicated network and / or TDMA satellite communication network management network to complete the whole network equipment management of the entire satellite network;

[0022] The whole network equipment management includes monitoring the working status of equipment and controlling equipment parameters, checking the working status, parameter information and alarm status of remote equipment, and realizing remote control of equipment parameters.

[0023] Furthermore, the first-level network management center is specifically used to complete the whole network resource management of the entire satellite network using the ground dedicated network;

[0024] The whole network resource management includes the configuration of satellite frequency resources, the establishment and removal of FDMA communication links and the monitoring of frequency usage.

[0025] It can be seen from the above technical solution that, compared with the prior art, the present invention discloses a FDMA satellite communication network multi-level management system based on a hybrid management channel, comprising: at least one primary network management center, a corresponding plurality of secondary network management centers, and a plurality of tertiary network management stations belonging to each secondary network management center;

[0026] Among them, a ground private network is established between the first-level network management center and the second-level network management center as the ground network management network of the first / second-level network management center; a TDMA satellite communication network management network is established between each second-level network management center and multiple third-level network management stations under it; the third-level network management station is used to complete the management of the equipment in the local earth station through the TDMA satellite communication network management network; the second-level network management center is used to use the TDMA satellite communication network management network and the ground private network to centrally manage the status and parameters of the equipment of each station in the area; the first-level network management center is used to use the ground private network to complete the management of the entire satellite communication network, including the management of equipment and resources of the entire network. The system is designed with a three-level management architecture that adopts a centralized management method, and cooperates with each other to complete equipment management and resource management; in addition, the ground dedicated line is combined with the TDMA satellite communication network to manage the channel, get rid of the limitation of the business communication satellite, overcome the disadvantage of the reverse ALOHA easy conflict collision; improve the flexibility and scalability of multi-satellite networking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 The present invention provides a schematic structural diagram of a FDMA satellite communication network multi-level management system based on a hybrid management channel.

[0029] Figure 2The present invention provides a schematic diagram of the working principle of the FDMA satellite communication network multi-level management system based on the hybrid management channel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The embodiment of the present invention discloses a FDMA satellite communication network multi-level management system based on a hybrid management channel, referring to Figure 1 As shown, it includes: at least one primary network management center, a corresponding plurality of secondary network management centers, and a plurality of tertiary network management stations belonging to each secondary network management center;

[0032] The present invention designs a three-level management architecture, adopts a centralized management method, and is divided into three levels according to the hierarchy, including a primary network management center, a secondary network management center, and a tertiary network management station, a total of three levels of network management software, which can cooperate with each other to complete functions such as equipment management and resource management:

[0033] Among them, a ground dedicated network is established between the first-level network management center and the second-level network management center as the ground network management network of the first / second-level network management center to ensure the smooth operation of the satellite communication network management channel and the reliability of the mission; a TDMA satellite communication network management network is established between each second-level network management center and multiple third-level network management stations under it to transmit management messages, get rid of the limitations of business communication satellites, and overcome the shortcomings of reverse ALOHA prone to conflicts and collisions.

[0034] The above-mentioned three-level network management station is used to complete the management of the equipment in the earth station through the TDMA satellite communication network management network; the second-level network management center is used to use the TDMA satellite communication network management network and the ground private network to centrally manage the status and parameters of the equipment in each station in the area; the first-level network management center is used to use the ground private network to complete the management of the entire satellite communication network, including equipment management and resource management of the entire network.

[0035] In specific implementation, for example, for satellite communication systems that require high reliability and openness, first of all, a three-level management architecture is designed, using a centralized management method and divided into three levels; secondly, a management channel combining ground dedicated lines and TDMA satellite communication networks is adopted, and a ground dedicated line is used as a management channel when the data exchange volume between the first-level network management center and the second-level network management center is large; a TDMA satellite communication management network is established between each second-level network management center and the subordinate third-level network management station to transmit management messages, get rid of the limitations of business communication satellites, and overcome the shortcomings of reverse ALOHA that is prone to conflicts and collisions.

[0036] Furthermore, a TDMA satellite communication network management network can be established in the above-mentioned primary network management center and secondary network management center, and management signaling can be transmitted through the TDMA satellite communication network management network. The normalized operation mode is adopted to open the normalized TDMA satellite communication network management network, and all subordinate network management stations are joined in it. Management signaling is transmitted through the TDMA satellite communication network management network to ensure that the network management channels of each network management station are unobstructed, so as to meet the control of the primary / secondary network management center.

[0037] This management mode requires that TDMA communication terminal equipment be separately equipped in the primary / secondary network management center and each network management station, and that the TDMA satellite communication network management network in the region be independently constructed. The FDMA satellite communication service network is established through the control of the network management network. Therefore, system control is more efficient and communication is more flexible.

[0038] In terms of system, the TDMA system has the advantages of supporting multi-point intercommunication, broadcast and multicast applications, dynamic allocation of resources on demand, and less channel equipment in the station compared to the FDMA system. It is currently the most popular satellite communication system in the world, but its bandwidth is relatively limited and cannot meet the needs of high-speed communication. According to the characteristics of TDMA and the needs of satellite communication management channels, TDMA is more suitable as a management channel; it can realize the network communication of the center-small station mode of the DVB system (digital satellite TV system), and can be used as a dedicated network management channel from the first / secondary network management center to the network management station, used to support the first / secondary network management center to monitor, control and manage the network management stations, carry the comprehensive information of satellite communication network management, and also provide IP telephone access function based on the TDMA network service channel.

[0039] Reference Figure 2 As shown, the implementation process of the FDMA satellite communication network multi-level management system based on the hybrid management channel is as follows:

[0040] A. Deploy the third-level network management station software at the earth station, which will be responsible for monitoring the working status, equipment parameters and alarm information of the equipment in the earth station. The earth station includes fixed stations, vehicle-mounted stations, ship-mounted stations, etc.

[0041] B. Add TDMA network control software to the primary / secondary network management center and TDMA communication terminals to the earth station. The built-in agent module in the terminal can assist the TDMA network control software in realizing TDMA network planning and control. The TDMA network control software and the TDMA equipped in each earth station form a regional TDMA satellite communication network management network.

[0042] C. The third-level network management station software can receive management from the first / secondary network management center. After completing the network access through authentication and authorization, the working status, parameters and alarm information of the local equipment will be reported to the second-level network management center through the TDMA satellite communication network management channel to assist the second-level network management center in completing the centralized management of the region. The earth station directly under the first-level network management center will also report the local information directly to the first-level network management center software through the TDMA satellite communication network management channel;

[0043] D. The amount of data exchange between the primary network management center and the secondary network management center is relatively large, so the ground private network is used as its management channel. The secondary network management center collects the equipment working status, parameters and alarm information reported by the third-level network management stations in the area through the TDMA satellite communication network management network, and then reports it to the primary network management center through the ground private network;

[0044] E. The first-level network management center software uses a ground-based private network and / or TDMA satellite communication network management network to complete the full network equipment management of the entire satellite network, including full-site site management, equipment management, and resource management. Site management includes the management of basic information such as the longitude and latitude of the earth station, antenna aperture, and power amplifier size; equipment management includes monitoring of the equipment's working status and control of equipment parameters. The working status, parameter information, and alarm status of remote equipment can be viewed, and remote control of equipment parameters can be achieved. Resource management includes the configuration of satellite frequency resources, the establishment and removal of FDMA communication links, and the monitoring of frequency usage.

[0045] By adopting the FDMA satellite communication network management architecture that combines ground dedicated lines with TDMA satellite communication networks, and by using different management channels to uniformly control each earth station in the FDMA satellite communication network, the first-level network management center can achieve unified management of earth stations, equipment and satellite resources in the entire network, and facilitate the expansion of satellites, earth stations and satellite communication equipment.

[0046] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-level management system for FDMA satellite communication networks based on a hybrid management channel, characterized in that: include: At least one primary network management center, multiple corresponding secondary network management centers, and multiple tertiary network management stations belonging to each secondary network management center; Wherein, a ground private network is established between the first-level network management center and the second-level network management center as the ground network management network of the first / second-level network management center; Establish a TDMA satellite communication network management network between each secondary network management center and multiple subordinate tertiary network management stations; The third-level network management station is used to manage the equipment in the earth station through the TDMA satellite communication network management network; The secondary network management center is used to centrally manage the status and parameters of each station equipment in the area using the TDMA satellite communication network management network and the ground dedicated network; The first-level network management center is used to use the ground-based private network to complete the management of the entire satellite communication network, including network-wide equipment management and resource management.

2. The FDMA satellite communication network multi-level management system based on hybrid management channel according to claim 1 is characterized in that: A TDMA satellite communication network management network is established in the primary network management center and the secondary network management center, and management signaling is transmitted through the TDMA satellite communication network management network.

3. The FDMA satellite communication network multi-level management system based on hybrid management channel according to claim 2 is characterized in that: The first-level network management center, each second-level network management center and each subordinate third-level network management station are individually equipped with TDMA communication terminal equipment; an independent TDMA satellite communication network management network is constructed in this area, and the FDMA satellite communication service network is established through the control of the TDMA satellite communication network management network.

4. The FDMA satellite communication network multi-level management system based on hybrid management channel according to claim 2 is characterized in that: The third-level network management station is specifically used to accept the management of the first-level network management center and / or the second-level network management center. After completing the network access through authentication and authorization, the local equipment working status, parameters and alarm information are reported to the second-level network management center through the TDMA satellite communication network management channel to assist the second-level network management center in completing the centralized management of the area.

5. The FDMA satellite communication network multi-level management system based on hybrid management channel according to claim 4 is characterized in that: The third-level network management station directly under the first-level network management center reports local information directly to the first-level network management center through the TDMA satellite communication network management network channel.

6. The FDMA satellite communication network multi-level management system based on hybrid management channel according to claim 2 is characterized in that: The secondary network management center is specifically used to summarize the equipment working status, parameters and alarm information reported by each third-level network management station in the area through the TDMA satellite communication network management network, and then report to the primary network management center through the ground dedicated network.

7. The FDMA satellite communication network multi-level management system based on hybrid management channels according to claim 2 is characterized in that: The first-level network management center is specifically used to use the ground dedicated network and / or TDMA satellite communication network management network to complete the management of the entire satellite network; The whole-site site management includes the management of basic information of the earth station's longitude and latitude, antenna aperture, and power amplifier size.

8. The FDMA satellite communication network multi-level management system based on hybrid management channels according to claim 7 is characterized in that: The first-level network management center is specifically used to use the ground dedicated network and / or TDMA satellite communication network management network to complete the whole network equipment management of the entire satellite network; The whole network equipment management includes monitoring the working status of equipment and controlling equipment parameters, checking the working status, parameter information and alarm status of remote equipment, and realizing remote control of equipment parameters.

9. The FDMA satellite communication network multi-level management system based on hybrid management channels according to claim 7 is characterized in that: The first-level network management center is specifically used to complete the whole network resource management of the entire satellite network by using the ground dedicated network; The whole network resource management includes the configuration of satellite frequency resources, the establishment and removal of FDMA communication links and the monitoring of frequency usage.

Images