WO2017107500A1

WO2017107500A1 - Method and apparatus for testing satellite communication system

Info

Publication number: WO2017107500A1
Application number: PCT/CN2016/094211
Authority: WO
Inventors: 祝大勇; 任飞
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-12-25
Filing date: 2016-08-09
Publication date: 2017-06-29
Also published as: CN106921448B; CN106921448A

Abstract

Provided are method and apparatus for testing a satellite communication system. The method comprises: an analogue end station accessing a target master station by means of an analogue satellite link, wherein the analogue end station and the analogue satellite link are generated by pre-setting an analogue parameter; the analogue end station generating a multi-user data message; and the analogue end station sending the data message to the target master station by means of the analogue satellite link.

Description

Test method and device for satellite communication system

Technical field

Embodiments of the present invention relate to, but are not limited to, the field of communications, and in particular, to a method and apparatus for testing a satellite communication system.

Background technique

The feasibility of satellite broadband access technology has been demonstrated for many years. In the architecture of related technologies, the open standard of Digital Video Broadcasting Return Channel by Satellite (DVB-RCS) has been commercially obtained. Success. The DVB-RCS standard is a truly open standard that allows interoperability between products from different vendors implementing the DVB-RCS standard.

In the satellite broadband communication system, data is transmitted between the end station and the primary station through the satellite link, and the data transmission process has problems such as high delay, high jitter, and easy packet loss. The main station in the satellite broadband communication system supports the access of thousands of end stations. It is impossible to carry out the test through a large number of real end stations, but access the main station through expensive and limited satellite resources. System testing, this type of testing will result in higher system testing costs.

In view of the related art, the problem of expensive and limited satellite resources in the test of the satellite broadband communication system has not been effectively solved.

Summary of the invention

Embodiments of the present invention provide a testing method and apparatus for a satellite communication system to at least solve the problem of occupying expensive and limited satellite resources when testing a satellite broadband communication system in the related art.

According to an aspect of an embodiment of the present invention, a method for testing a satellite communication system is provided, including:

The analog end station accesses the target primary station through the analog satellite link, wherein the analog end station and the analog satellite link are generated by using preset simulation parameters;

The analog end station generates a data message of a multi-user;

The analog end station transmits the data message to the target primary station through the analog satellite link.

Optionally, the analog end station generates a data message of the multi-user, and sending the data message to the target primary station includes:

After generating the data packet of the multi-user, the analog end station encapsulates the data packet according to a preset rule;

And transmitting, by the analog end station, the encapsulated data packet to the target primary station by using the analog satellite link.

Optionally, the analog end station accessing the target primary station by using an analog satellite link includes:

The analog end station sends an access request message to the target primary station through the analog satellite link;

The analog end station receives the first notification message corresponding to the access request message sent by the target primary station by using the analog satellite link, where the first notification message indicates that the analog end station successfully connects Enter the target primary station.

Optionally, after the analog end station sends an access request message to the target primary station by using the analog satellite link, the method further includes:

The analog end station sets the analog satellite link to discard the first notification message corresponding to the sending access request message sent by the target primary station;

Receiving, by the analog end station, the second notification message corresponding to the sending access request message that is sent by the target primary station by using the simulated satellite link, where the second notification message indicates the analog end station Successful access to the target primary station.

Optionally, after the analog end station accesses the target primary station by using an analog satellite link, the method further includes:

The analog end station sets the analog satellite link to discard the data message;

The analog end station receives a first release message of the target primary station, where the first release message is used to indicate the simulated end station release process.

The analog end station sends a voice message to the target satellite station through the analog satellite link A real end station, wherein the real end station accesses the target primary station through the analog satellite link.

The analog end station sends a second release message to the target primary station, where the second release message is used to instruct the analog end station to initiate a release procedure of the analog end station and the target end station.

According to another aspect of an embodiment of the present invention, a test apparatus for a satellite communication system is provided, which is applied to an analog end station, and includes:

An access module, configured to access a target primary station by using an analog satellite link, where the analog end station and the analog satellite link are generated by using preset simulation parameters;

Generating a module, configured to generate a multi-user data message;

And a first sending module, configured to send the data message to the target primary station by using the analog satellite link.

Optionally, the device further includes:

The encapsulating module is configured to encapsulate the data packet according to a preset rule after generating a data message of the multi-user;

And a second sending module, configured to send the encapsulated data packet to the target primary station by using the analog satellite link.

Optionally, the access module includes:

a first access unit, configured to send an access request message to the target primary station by using the analog satellite link;

a second access unit, configured to receive, by using the analog satellite link, a first notification message that is sent by the target primary station and that is corresponding to the access request message, where the first notification message is used to indicate The analog end station successfully accesses the target primary station.

Optionally, the device further includes:

a first discarding module, configured to: after the sending an access request message to the target primary station by using the analog satellite link, setting the analog satellite link to discard the sending the request message sent by the target primary station Corresponding first notification message;

a receiving module configured to receive, by the analog satellite link, the target primary station to transmit again And a second notification message corresponding to the sending access request message, where the second notification message indicates that the analog end station successfully accesses the target primary station.

Optionally, the device further includes:

a second discarding module, configured to set the analog satellite link to discard the data packet after the analog end station accesses the target primary station through the analog satellite link;

And a first release module, configured to receive a first release message of the target primary station, where the first release message is used to indicate the simulated end station release process.

Optionally, the device further includes:

a third sending module, configured to send the voice message to the real end station through the analog satellite link and the target primary station after the analog end station accesses the target primary station through the analog satellite link, where The real end station accesses the target primary station through the analog satellite link.

Optionally, the device further includes:

a second release module, configured to send a second release message to the target primary station after the analog end station accesses the target primary station through the analog satellite link, where the second release message is used to indicate the analog end station Initiating a release process of the analog end station and the target end station.

According to the embodiment of the present invention, the analog end station accesses the target primary station through the analog satellite link, wherein the analog end station and the analog satellite link are generated by using preset simulation parameters, and the analog end station generates a multi-user data message. The analog end station transmits the data message to the target primary station through the analog satellite link, and the satellite broadband communication system can be tested without occupying expensive and limited satellite resources, thereby reducing test cost; In the laboratory, the main station of satellite communication can also be tested for traffic, and the system function and performance are tested in a timely and effective manner to ensure product quality.

BRIEF abstract

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

1 is a flow chart of a test method of a satellite communication system according to an embodiment of the present invention;

2 is a block diagram showing the structure of a test apparatus for a satellite communication system according to an embodiment of the present invention. One;

3 is a structural block diagram 2 of a test apparatus for a satellite communication system according to an embodiment of the present invention;

4 is a structural block diagram 3 of a test apparatus for a satellite communication system according to an embodiment of the present invention;

5 is a structural block diagram 4 of a test apparatus for a satellite communication system according to an embodiment of the present invention;

6 is a structural block diagram 5 of a test apparatus for a satellite communication system according to an embodiment of the present invention;

7 is a structural block diagram 6 of a test apparatus for a satellite communication system according to an embodiment of the present invention;

FIG. 8 is a structural block diagram 7 of a testing apparatus for a satellite communication system according to an embodiment of the present invention; FIG.

9 is a block diagram of a satellite communication large traffic test system in accordance with an alternative embodiment of the present invention;

Figure 10 is a block diagram of a simulated end station in accordance with an alternative embodiment of the present invention;

11 is a schematic diagram of normal access of an analog end station according to an alternative embodiment of the present invention;

12 is a schematic diagram of an abnormality of a forward satellite link according to an alternative embodiment of the present invention;

13 is a schematic diagram of an inverse satellite link anomaly in accordance with an alternative embodiment of the present invention;

14 is a schematic diagram of a processing flow of an analog end station application message according to an alternative embodiment of the present invention;

15 is a schematic diagram of a simulation end station release flow according to an alternative embodiment of the present invention.

Embodiments of the invention

The present application will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It should be noted that the terms "first", "second" and the like in the specification and claims of the embodiments of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or Prioritization.

In this embodiment, a testing method of a satellite communication system is provided. FIG. 1 is a flowchart of a testing method of a satellite communication system according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:

Step S102: The analog end station accesses the target primary station by using an analog satellite link, where the analog end station and the analog satellite link are generated by using preset simulation parameters;

Step S104, the analog end station generates a data message of multiple users;

Step S106, the analog end station sends the data message to the target primary station through the analog satellite link.

Through the above steps, the analog end station accesses the target primary station through the analog satellite link, wherein the analog end station and the analog satellite link are generated by using preset analog parameters, and the analog end station generates a multi-user data message, The analog end station transmits the data message to the target main station through the analog satellite link, and the satellite broadband communication system can be tested without occupying expensive and limited satellite resources, thereby reducing the test cost.

In this embodiment, the manner in which the analog end station generates a multi-user data message and sends the data message to the target primary station includes the following contents:

The analog end station sends the encapsulated data packet to the target primary station through the analog satellite link.

In this embodiment, the manner in which the analog end station accesses the target primary station through the analog satellite link includes the following contents:

Receiving, by the analog end station, the first notification message corresponding to the access request message sent by the target primary station, where the first notification message is used to indicate that the analog end station successfully accesses the target Main site.

In this embodiment, after the analog end station sends the access request message to the target primary station by using the analog satellite link, the method further includes: setting the analog satellite link to discard the sent by the target primary station and transmitting the Sending a first notification message corresponding to the access request message, the analog end station receiving, by the analog satellite link, a second notification message corresponding to the sending access request message that is sent by the target primary station again, where the second notification message The message indicates that the analog end station successfully accesses the target primary station.

In this embodiment, after the analog end station accesses the target primary station through the analog satellite link, the method further includes: setting the analog satellite link to discard the data message, and the analog end station receives the first release of the target primary station a message, wherein the first release message is used to indicate the simulated end station release process.

In this embodiment, after the analog end station accesses the target primary station through the analog satellite link, the method further includes: the analog end station transmitting the voice message to the real end station through the analog satellite link and the target primary station, The real end station accesses the target primary station through the analog satellite link.

In this embodiment, after the analog end station accesses the target primary station by using the analog satellite link, the method further includes: the analog end station sending a second release message to the target primary station, where the second release message is used to indicate The analog end station initiates a release process of the analog end station and the target end station.

In this embodiment, a test device for a satellite communication system is provided, which is used to implement the above-mentioned embodiments and optional embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

2 is a structural block diagram 1 of a test apparatus for a satellite communication system according to an embodiment of the present invention, which is applied to an analog end station, as shown in FIG. 2, the apparatus includes:

The access module 22 is configured to connect the analog end station to the target primary station by using an analog satellite link, where the analog end station and the analog satellite link are generated by using preset simulation parameters;

The generating module 24 is connected to the access module 22 and configured to generate a data message of multiple users.

The first sending module 26 is connected to the generating module 24 and configured to send the data message to the target primary station through the analog satellite link.

Through the above steps, the access module 22 accesses the target primary station through the analog satellite link, wherein the analog end station and the analog satellite link are generated by using preset simulation parameters, and the generating module 24 generates a multi-user data message, A transmitting module 26 sends the data message to the target primary station through the analog satellite link, and the satellite broadband communication system can be tested without occupying expensive and limited satellite resources. Source, thus reducing test costs.

3 is a structural block diagram 2 of a testing apparatus for a satellite communication system according to an embodiment of the present invention. As shown in FIG. 3, the apparatus further includes:

The encapsulating module 32 is connected to the access module 22, and is configured to encapsulate the data packet according to a preset rule after generating a data message of the multi-user;

The second sending module 34 is connected to the encapsulating module 32 and configured to send the encapsulated data packet to the target primary station through the analog satellite link.

4 is a structural block diagram 3 of a test apparatus for a satellite communication system according to an embodiment of the present invention. As shown in FIG. 4, the access module 22 further includes:

The first access unit 42 is configured to send an access request message to the target primary station by using the analog satellite link;

The second access unit 44 is configured to receive, by using the analog satellite link, a first notification message that is sent by the target primary station and that is corresponding to the access request message, where the first notification message indicates that the analog end station successfully accesses The target primary station.

FIG. 5 is a structural block diagram 4 of a testing apparatus for a satellite communication system according to an embodiment of the present invention. As shown in FIG. 5, the apparatus further includes:

a first discarding module 52, configured to send an access request message to the target primary station through the analog satellite link, and set the simulated satellite link to discard the first corresponding to the sending access request message sent by the target primary station Notification message

The receiving module 54 is connected to the first discarding module 52, and is configured to receive, by using the analog satellite link, a second notification message that is sent by the target primary station and corresponding to the sending access request message, where the second notification message indicates The analog end station successfully accesses the target primary station.

6 is a structural block diagram 5 of a testing apparatus for a satellite communication system according to an embodiment of the present invention. As shown in FIG. 6, the apparatus further includes:

The second discarding module 62 is connected to the access module 22, and is configured to: after the analog end station accesses the target main station through the analog satellite link, set the analog satellite link to discard the data packet;

The first release module 64 is connected to the second discarding module 62 and configured to receive the first release message of the target primary station, wherein the first release message is used to indicate the simulated end station release process.

FIG. 7 is a structural block diagram 6 of a testing apparatus for a satellite communication system according to an embodiment of the present invention. As shown in FIG. 7, the apparatus further includes:

The third sending module 72 is connected to the access module 22, and is configured to send the voice message to the real end station through the analog satellite link and the target primary station after the analog end station accesses the target primary station through the analog satellite link. , wherein the real end station accesses the target primary station through the analog satellite link.

FIG. 8 is a structural block diagram of a testing apparatus for a satellite communication system according to an embodiment of the present invention. As shown in FIG. 8, the apparatus further includes:

The second release module 82 is connected to the access module 22, and is configured to: after the analog end station accesses the target primary station through the analog satellite link, send a second release message to the target primary station, where the second release message is used. Instructing the analog end station to initiate a release procedure of the analog end station and the target end station.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

The following is a detailed description in conjunction with an alternative embodiment of the invention.

The main content of the invention is: simulating multi-user data generation and corresponding processing (corresponding to the generation module 24 of the above embodiment); simulating the protocol implementation of the multi-terminal station, encapsulating the multi-user data message, or Decapsulation generates a multi-user data message (corresponding to the encapsulation module 32 of the above embodiment); simulating the satellite link transmission characteristic; simulating the service interaction between the end station and the real end station (corresponding to the third sending module 72 of the above embodiment) ).

The steps of the test method used in the alternative embodiment of the invention are as follows:

In the first step, the analog end station and the tested main station (target main station) are connected via a network cable, an E1 line or other medium. Simulate the star search process by setting simulation parameters and simulate the satellite transmission channel;

In the second step, multiple analog end stations access the main station through the analog satellite link to complete the end station access process;

The third step is to generate a multi-user data message, distribute it to the end-end protocol processing module for encapsulation processing according to a certain rule, and then send it to the main station via the simulated satellite link;

The fourth step is to receive the data of the primary station through the analog satellite link, perform corresponding decapsulation processing of the end station protocol, generate a multi-user data message, and distribute the data to the user (service) data module for processing;

In the fifth step, when a specific condition such as end station maintenance or power-off is satisfied, the end station initiates a release process or processes a passive release.

The steps described in the alternative embodiments above are not strictly sequential and must be fully available for testing.

The large traffic test method and system according to an alternative embodiment of the present invention includes the following parts: analog multi-user data generation and processing, analog multi-end station protocol processing, and analog satellite link communication characteristics.

9 is a block diagram of a satellite communication large traffic test system according to an alternative embodiment of the present invention. As shown in FIG. 9, the test system includes N simulators (analog end stations), a primary station, and a gateway.

10 is a block diagram of an analog end station in accordance with an alternate embodiment of the present invention. As shown in FIG. 10, the analog end station includes an application emulation module 102, a dedicated protocol processing module 104, and an analog satellite link module 106.

Example 1 of an alternative embodiment of the invention, the satellite link is normal:

FIG. 11 is a schematic diagram of normal access of an analog end station according to an alternative embodiment of the present invention. As shown in FIG. 11, a Next Generation Broadcast-Wireless (NGB-W) satellite system is taken as an example. The steps are as follows:

S1101: The analog end station initiates an access request after receiving the uplink access resource, and sends the request to the target primary station through the analog satellite link.

S1102: the target primary station receives the access of the analog end station, and notifies the analog end station by using an analog satellite link;

S1103, after the analog end station accesses successfully, notifies the application simulator end station state; the control channel and the data channel are all open.

Example 2 of an alternative embodiment of the present invention simulates loss of forward satellite links:

12 is a schematic diagram of an abnormality of a forward satellite link according to an alternative embodiment of the present invention. As shown in FIG. 12, taking the NGB-W satellite system as an example, the steps are as follows:

S1201: The analog end station initiates an access request after receiving the uplink access resource, and sends the request to the target primary station through the analog satellite link.

S1202, the target primary station accepts the access of the analog end station, and notifies the analog end station through the analog satellite link;

S1203: After receiving the message accessed by the end station, the primary station loses the packet due to the abnormality of the satellite link;

S1204, the primary station retransmits the analog end station access message;

S1205: After the analog end station accesses successfully, notify the application simulator end station state; the control channel and the data channel are all open.

Example 3 of an alternative embodiment of the invention simulates a reverse satellite link anomaly:

FIG. 13 is a schematic diagram of an inverse satellite link anomaly according to an alternative embodiment of the present invention. As shown in FIG. 13, the NGB-W satellite system is taken as an example, and the steps are as follows:

S1301, the analog end station normally accesses the primary station;

S1302, the satellite link is abnormal during operation, and the message sent by the end station to the primary station is used for the satellite link abnormality and cannot be sent to the primary station;

S1303. The primary station initiates an end station release process.

Example 4 of an alternative embodiment of the present invention, simulating end station application message processing:

14 is a schematic diagram of a processing flow of a simulated end station application message according to an alternative embodiment of the present invention. As shown in FIG. 14, the NGB-W satellite system is taken as an example, and the steps are as follows:

S1401, the analog end station and the real end station sequentially access the main station in succession;

S1402: The application simulator under the analog end station simulates an application to send a voice message;

S1403, the voice message is forwarded to the real end station through the satellite link analog module and the primary station system;

S1404: The real end station forwards the voice message from the analog end station to the target application for processing.

Example 5 of an alternative embodiment of the present invention, simulating end station release:

15 is a schematic diagram of a simulation end station release flow according to an alternative embodiment of the present invention. As shown in FIG. 15, the NGB-W satellite system is taken as an example, and the steps are as follows:

S1501, the analog end station sends a release request to the primary station;

S1502, the status of each module of the analog end station is updated.

After adopting the test method of the optional embodiment of the present invention, the mobile station can also perform the traffic test on the main station of the satellite communication without renting expensive satellite resources, and timely and effectively test the system function and performance to ensure the protection. product quality.

Through the description of the above embodiments, those skilled in the art can clearly understand that The method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the foregoing storage medium may be configured to store program code for performing the method steps of the above embodiment:

Step 1: The analog end station accesses the target primary station through the analog satellite link, wherein the analog end station and the analog satellite link are generated by using preset simulation parameters;

Step 2: The analog end station generates a data message of multiple users;

Step 3: The analog end station sends the data message to the target primary station by using the analog satellite link.

Optionally, the storage medium is further arranged to store program code for performing the method steps of the above-described embodiments:

Step 1: The analog end station sets the analog satellite link to discard the data packet;

Step 2: The analog end station receives a first release message of the target primary station, where the first release message is used to indicate the simulated end station release process.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor performs the method steps of the foregoing embodiment according to the stored program code in the storage medium:

After the analog end station accesses the target primary station through the analog satellite link, the analog end station sends a voice message to the real end station through the analog satellite link and the target primary station, where the real The end station accesses the target primary station through the analog satellite link.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

Obviously, those skilled in the art should understand that the above modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The present application provides a test method and apparatus for a satellite communication system, wherein the method includes: the analog end station accesses a target primary station through an analog satellite link, wherein the analog end station and the analog satellite link pass a preset Analog parameter generation, the analog end station generates a multi-user data message, and the analog end station sends the data message to the target primary station through the analog satellite link. When the application can implement the satellite broadband communication system test, it does not need to occupy expensive and limited satellite resources, thereby reducing the test cost.

Claims

A method of testing a satellite communication system, the method comprising:

The analog end station accesses the target primary station through the analog satellite link, wherein the analog end station and the analog satellite link are generated by using preset simulation parameters;

The analog end station generates a data message of a multi-user;

The analog end station transmits the data message to the target primary station through the analog satellite link.
The method of claim 1, wherein the analog end station generates a data message of the multi-user and sends the data message to the target primary station, including:

After generating the data packet of the multi-user, the analog end station encapsulates the data packet according to a preset rule;

And transmitting, by the analog end station, the encapsulated data packet to the target primary station by using the analog satellite link.
The method of claim 1 wherein said analog end station accesses a target primary station via an analog satellite link, comprising:

The analog end station sends an access request message to the target primary station through the analog satellite link;

Receiving, by the analog end station, the first notification message that is sent by the target primary station and corresponding to the access request message, where the first notification message is used to indicate the analog end The station successfully accesses the target primary station.
The method of claim 3, after the analog end station sends an access request message to the target primary station via the analog satellite link, the method further includes:

The analog end station sets the analog satellite link to discard the first notification message corresponding to the sending access request message sent by the target primary station;

The analog end station receives, by the analog satellite link, a second notification message that is sent by the target primary station and is corresponding to the sending access request message, where the second notification message is used to indicate the The analog end station successfully accesses the target primary station.
The method of claim 1, after the analog end station accesses the target primary station through the analog satellite link, the method further includes:

The analog end station sets the analog satellite link to discard the data message;

The analog end station receives a first release message of the target primary station, where the first release message is used to indicate the simulated end station release process.
The method of claim 1, after the analog end station accesses the target primary station through the analog satellite link, the method further includes:

The analog end station sends a voice message to the real end station through the analog satellite link and the target primary station, wherein the real end station accesses the target primary station through the analog satellite link.
The method of claim 1, after the analog end station accesses the target primary station through the analog satellite link, the method further includes:

The analog end station sends a second release message to the target primary station, where the second release message is used to instruct the analog end station to initiate a release procedure of the analog end station and the target end station.
A test device for a satellite communication system is applied to an analog end station, the device comprising:

An access module, configured to access a target primary station by using an analog satellite link, where the analog end station and the analog satellite link are generated by using preset simulation parameters;

Generating a module, configured to generate a multi-user data message;

And a first sending module, configured to send the data message to the target primary station by using the analog satellite link.
The apparatus of claim 8 further comprising:

The encapsulating module is configured to encapsulate the data packet according to a preset rule after generating a data message of the multi-user;

And a second sending module, configured to send the encapsulated data packet to the target primary station by using the analog satellite link.
The device of claim 8, wherein the access module comprises:

a first access unit, configured to send an access request message to the target primary station by using the analog satellite link;

a second access unit, configured to receive, by using the analog satellite link, a first notification message that is sent by the target primary station and that is corresponding to the access request message, where the first notification message is used to indicate The analog end station successfully accesses the target primary station.
The device of claim 10, wherein the device further comprises:

a first discarding module, configured to: after the sending an access request message to the target primary station by using the analog satellite link, setting the analog satellite link to discard the sending the request message sent by the target primary station Corresponding first notification message;

a receiving module, configured to receive, by using the analog satellite link, a second notification message that is sent by the target primary station and that is corresponding to the sending access request message, where the second notification message is used to indicate the The analog end station successfully accesses the target primary station.
The apparatus of claim 8 further comprising:

a second discarding module, configured to: after the analog end station accesses the target main station through the analog satellite link, setting the analog satellite link to discard the data packet;

The first release module is configured to receive the first release message of the target primary station, where the first release message is used to indicate the simulated end station release process.
The apparatus of claim 8 further comprising:

a third sending module, configured to send the voice message to the real end station through the analog satellite link and the target primary station after the analog end station accesses the target primary station through the analog satellite link, where And the real end station accesses the target primary station through the analog satellite link.
The apparatus of claim 8 further comprising:

a second release module, configured to send a second release message to the target primary station after the analog end station accesses the target primary station by using the analog satellite link, where the second release message is used to indicate the analog end The station initiates a release process of the analog end station and the target end station.