GB/T 47424-2026Technical requirements and test methods for the BDS PPP service based on mobile communication networks (English PDF)

8.3 Test Preset Configuration

8.3.1 Network Origin Location The following conditions must be met.

a) The standard user terminal is operating normally and supports network PPP services;

b) The information parsing system is operating normally and supports the parsing of information exchanged between user terminals and the platform;

c) The user plane positioning agent is operating normally and requests positioning results from the platform via the mobile communication network;

d) Set the satellite signal source test parameters according to Table 4.

8.3.2 Terminal Origin Positioning The following conditions must be met.

a) The standard user terminal is operating normally and supports network PPP services;

b) The information parsing system is operating normally and supports the parsing of information exchanged between user terminals and the platform;

c) The user plane positioning agent is operating normally and requests location information from the user terminal through the mobile communication network;

d) Set the satellite signal source test parameters according to Table 4.

8.4 Test Items Both network origin location and terminal origin location tests should comply with the requirements in Table

5.Except for the optional concurrency capability test, the remaining tests should also comply with the requirements in Table 5. He selected the required test items.

9.1.1 Broadcast Content Test

9.1.1.1 Test Objective By exchanging information between the user terminal and the platform, the data content broadcast by the platform in the network origination location is verified.

9.1.1.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.1.1.3 Test Procedure The specific testing process is described as follows:

a) Connect the components as shown in Figure 4, and activate the satellite signal source for the test scenario;

b) Enable the user plane positioning agent to request the user terminal's location information from the platform, completing the network PPP service process;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Verify that the LPP message correctly encapsulates the track correction, clock correction, inter-symbol offset correction, and user ranging accuracy. Record the value.

9.1.1.4 Expected Results The data content of the BeiDou PPP positioning assistance information broadcast by the platform meets the requirements of 7.1.

9.1.2 Data Accuracy Test

9.1.2.1 Test Objective The accuracy of information broadcast by the platform during network origination positioning is verified through information interaction between the user terminal and the platform.

9.1.2.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.1.2.3 Test Procedure The specific testing process is described as follows:

a) Connect the components as shown in Figure 4, and activate the satellite signal source for the test scenario;

b) Enable the user plane positioning agent to request the user terminal's location information from the platform, completing the network PPP service process;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Extract track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values;

e) Continuously collect BeiDou PPP positioning assistance information for more than 7 days;

f) Calculate the track correction, clock error correction, inter-symbol deviation correction, and user measurement correction according to sections

7.4 of GB/T 45526-2025. Precision mark value accuracy.

9.1.2.4 Expected Results The accuracy of the BeiDou PPP auxiliary information provided by the platform meets the requirements of 7.2.

9.1.3 Update Cycle Test

9.1.3.1 Test Objective By exchanging information between the user terminal and the platform, the update cycle of information broadcast by the platform in the network origination positioning is verified.

9.1.3.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.1.3.3 Test Procedure The specific testing process is described as follows:

a) Connect the components as shown in Figure 4, and activate the satellite signal source for the test scenario;

b) Enable the user plane location proxy and request user terminal location information from the platform at the following time intervals to complete the network PPP service flow. Process. Track correction values and user ranging accuracy marker values are tested at 1-minute intervals; clock error correction values are tested at 10-second intervals; code intervals... Deviations are tested at 1-day intervals;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Extract track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values;

e) Record the update times of track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values, and calculate the data. Update interval.

9.1.3.4 Expected Results The update cycle of the BeiDou PPP positioning assistance information data broadcast by the platform meets the requirements of 7.3.

9.1.4 Latency Test

9.1.4.1 Test Objective Through information exchange between the user terminal and the platform, it is verified that the platform received the BeiDou PPP positioning assistance information request during the network origination positioning process. There was a delay in the broadcast of the corresponding supplementary information.

9.1.4.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.1.4.3 Test Procedure The testing process is described in detail below.

a) Connect according to Figure 4, and start the test scenario for the satellite signal source.

b) Enable the user plane positioning agent to request the user terminal's location information from the platform and complete the network PPP service process.

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform.

d) Record the time when the platform receives the BeiDou PPP positioning assistance information request.

e) Record the time when the platform broadcasts the corresponding auxiliary information.

f) Calculate the single platform delay according to formula (1).

f) at least 100 times.

h) Average latency of the computing platform.

9.1.4.4 Expected Results The time delay between the platform receiving the BeiDou PPP positioning assistance information request and broadcasting the corresponding assistance information meets the requirements of 7.4.

9.1.5 Access Availability Testing

9.1.5.1 Test Objective The availability of network PPP service access provided by the platform is verified through information interaction between the user terminal and the platform during network origination location.

9.1.5.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.1.5.3 Test Procedure The specific testing process is described as follows:

a) Connect the components as shown in Figure 4, and activate the satellite signal source for the test scenario;

b) Enable the user plane positioning agent to request the user terminal's location information from the platform, completing the network PPP service process;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Extract track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values;

e) Compare the information accuracy with post-event data from the same epoch; if the accuracy requirements are met, record it as a valid access.

e) at least 5000 times;

g) Calculate the availability of network PPP service access provided by the platform according to formula (2).

9.1.5.4 Expected Results The availability of network PPP service access provided by the platform meets the requirements of 7.5.

9.1.6 Concurrency Capability Test

9.1.6.1 Test Objective By exchanging information between the user terminal simulator and the platform, the platform's ability to support concurrency in network origination and positioning was verified.

9.1.6.2 Test Conditions Both the user terminal simulator and the BeiDou positioning service platform are operating normally, and they interact with each other via the SUPL protocol.

9.1.6.3 Test Procedure The specific testing process is described as follows:

a) Connect according to Figure 3;

b) Within 1 second, the user plane location agent requests the location information of 5000 user terminals from the platform to complete the network PPP service. process;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Extract track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values;

e) All 5,000 user terminals can receive track corrections, clock error corrections, inter-symbol deviation corrections, and user ranging accuracy marker values;

f) Continue testing for at least 30 minutes, repeating steps

9.1.6.4 Expected Results The platform's BeiDou PPP-assisted concurrent capability requirements must meet the requirements of 7.6.

9.1.7 Protocol Consistency Testing

9.1.7.1 Test Objective By exchanging information between the user terminal and the platform, the basic functions of the user terminal using the network PPP service in the network origination location are verified.

9.1.7.2 Test Conditions Both the user terminal and the platform are operating normally.

9.1.7.3 Test Procedure The specific test flowchart for this item is shown in Figure 5. Figure

5.Flowchart of network-assisted BeiDou PPP positioning test originating from the network The testing process is described in detail below.

a) Connect according to Figure 4, and start the test scenario for the satellite signal source.

b) The user plane positioning agent sends a positioning request message (MLPSLIR) to the platform for the user terminal.

c) The platform finds its route.

d) The platform sends a SUPLINIT message to the user terminal.

e) The user terminal analyzes the received SUPLINIT message.

f) The user terminal establishes a secure connection with the platform. The user terminal sends a SUPLPOSINIT message to the platform, which includes information about the terminal's supported positioning. Location methods, location protocols, and other related content.

g) The user terminal and the platform interact with each other via SUPLPOS messages, and complete the process in conjunction with BeiDou PPP positioning assistance information. position. 1) The platform sends a RequestCapabilities message to the user terminal, requesting the user terminal to report the location services it supports. ability; 2) The user terminal sends a ProvideCapabilities message to the platform, providing the location capabilities it supports; 3) The user terminal sends a RequestAssistanceData message to the platform. The message should include a request for BeiDou PPP assistance. information; 4) The platform sends a ProvideAssistanceData message to the user terminal. The message should contain BeiDou PPP assistance information. 5) The platform sends a RequestLocationInformation message to the user terminal, requesting the terminal's location information; 6) The user terminal sends a ProvideLocationInformation message to the platform. The message should contain the terminal's location information.

h) The platform sends a SUPLEND message to the user terminal, and the user terminal releases the secure connection.

i) The platform sends location information (MLPSLIA) to the user's plane positioning agent.

9.1.7.4 Expected Results The user terminal and the platform complete network-assisted BeiDou PPP positioning through network PPP service, and the positioning process between the two is consistent. The SUPL protocol requires compliance with 7.7.

9.2.1 Broadcast Content Test

9.2.1.1 Test Objective The system verifies the data content broadcast by the platform during the initial positioning of the terminal through information interaction between the user terminal and the platform.

9.2.1.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.2.1.3 Test Procedure The specific testing process is described as follows:

a) The user terminal launches the application, triggers a location request, and completes the network PPP service process;

b) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

c) Verify that the LPP message correctly encapsulates the track correction, clock correction, inter-symbol offset correction, and user ranging accuracy. Record the value.

9.2.1.4 Expected Results The data content of the BeiDou PPP positioning assistance information broadcast by the platform meets the requirements of 7.1.

9.2.2 Data Accuracy Test

9.2.2.1 Test Objective The accuracy of information broadcast by the platform during the initial positioning of the terminal is verified through information interaction between the user terminal and the platform.

9.2.2.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.2.2.3 Test Procedure The specific testing process is described as follows:

a) Connect the components as shown in Figure 4, and activate the satellite signal source for the test scenario;

b) The user terminal launches the application, triggers a location request, and completes the network PPP service process;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Extract track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values;

e) Continuously collect BeiDou PPP positioning assistance information for more than 7 days;

f) Calculate the track correction, clock error correction, inter-symbol deviation correction, and user measurement correction according to sections

7.4 of GB/T 45526-2025. Precision mark value accuracy.

9.2.2.4 Expected Results The accuracy of the BeiDou PPP auxiliary information provided by the platform meets the requirements of 7.2.

9.2.3 Update Cycle Test

9.2.3.1 Test Objective By exchanging information between the user terminal and the platform, the update cycle of information broadcast by the platform during the initial positioning of the terminal is verified.

9.2.3.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.2.3.3 Test Procedure The specific testing process is described as follows:

a) Connect the components as shown in Figure 4, and activate the satellite signal source for the test scenario;

b) The user terminal launches the application and triggers location requests at the following time intervals to complete the network PPP service process. track correction number The distance measurement accuracy mark value is tested at 1-minute intervals, the clock error correction value is tested at 10-second intervals, and the inter-symbol deviation is tested at 1-day intervals. test;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Extract track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values;

e) Record the update times of track corrections, clock corrections, inter-symbol deviation corrections, and user ranging accuracy marker values, and calculate the data. Update interval.

9.2.3.4 Expected Results The update cycle of the BeiDou PPP positioning assistance information broadcast by the platform meets the requirements of 7.3.

9.2.4 Latency Test

9.2.4.1 Test Objective Through information exchange between the user terminal and the platform, it is verified that the platform receives the BeiDou PPP positioning assistance information request during the initial positioning process of the terminal. There was a delay in the broadcast of the corresponding supplementary information.

9.2.4.2 Test Conditions Both the user terminal and the platform are running normally, and they interact with each other via the SUPL protocol.

9.2.4.3 Test Procedure The specific testing process is described as follows:

a) Connect the components as shown in Figure 4, and activate the satellite signal source for the test scenario;

b) The user terminal launches the application, triggers a location request, and completes the network PPP service process;

c) Use an information parsing system to parse the information exchanged between the user terminal and the platform;

d) Record the time when the platform receives the BeiDou PPP positioning assistance information request;

e) Record the time when the platform broadcasts the relevant auxiliary information;

f) Calculate the single-platform delay according to formula (1);

f) at least 100 times;

h) Average latency of the computing platform.

9.2.4.4 Expected Results The latency of the BeiDou PPP positioning assistance information broadcast by the platform meets the requirements of 7.4.

9.2.5 Access Availability Testing

9.2.5.1 Test Objective By exchanging information between the user terminal and the platform, the availability of network PPP service access provided by the platform during the terminal's initial positioning is verified.