WO2020034191A1

WO2020034191A1 - Data transmission method, device, and storage medium

Info

Publication number: WO2020034191A1
Application number: PCT/CN2018/101058
Authority: WO
Inventors: 邢平平; 丁泽文
Original assignee: 华为技术有限公司
Priority date: 2018-08-17
Filing date: 2018-08-17
Publication date: 2020-02-20

Abstract

Provided in the present application are a data transmission method, a device, and a storage medium. Said method comprises: an access network device acquiring original satellite measurement information measured by the access network device itself, converting the original satellite measurement information into satellite differential data, and sending to a positioning server the satellite differential data; the positioning server receiving, from the access network device, the satellite differential data and a positioning request from a mobile station, determining, according to the positioning request, position information of the mobile station, and according to the position information and by means of the access network device, sending to the mobile station the satellite differential data. The solution enables acquisition of satellite differential data having the same or similar quality at a lower cost, and is also able to effectively reduce the acquisition delay and the transmission delay of the satellite differential data.

Description

Data transmission method, equipment and storage medium

Technical field

The present application relates to the field of communication technologies, and in particular, to a method, a device, and a storage medium for data transmission.

Background technique

At present, high-precision positioning has shifted from professional surveying and mapping fields or local use to consumer-level and wide-area. That is, the coverage of differential services is in great demand. To provide high-precision differential services, a large number of differential reference stations need to be built. Construct a differential base station network, each base station uniformly transmits the measurement data to the web server, and then the web server virtualizes a base station near the mobile station using the virtual base station technology based on the rough position reported by the mobile station, and The satellite differential data of the virtual reference station is transmitted to the mobile station via the Internet.

Since the existing mechanism is based on the measurement data reported to the network server by the differential base station network and the virtual base station, the satellite differential data of the virtual base station is finally acquired. However, in this method, when the network server delivers satellite differential data to the mobile station, the Internet distribution mode is used, and the entire distribution delay is long, which affects the positioning performance of the mobile station.

Summary of the Invention

The embodiments of the present application provide a method, a device, and a storage medium for data transmission, which can solve the problem of high transmission delay of satellite differential data in the prior art.

In a first aspect, an embodiment of the present application provides a data transmission method, where the method is performed by an access network device, and the method includes:

The access network device obtains the original satellite measurement information obtained by its own measurement.

The access network device converts the original satellite measurement information into satellite differential data.

The access network device sends the satellite differential data to a positioning server.

Compared with the existing mechanism, in the embodiment of the present application, the deployed access network equipment is used to obtain the original satellite measurement information. The original satellite measurement information obtained based on the deployed access network equipment's own measurement can be obtained from the existing satellite measurement information. The satellite differential data in the mechanism has similar or identical satellite differential data, that is, the existing access network equipment is used as a differential reference station, and there is no need to establish a large number of differential reference stations other than these base stations, and it is not necessary to be near mobile stations. Virtual out differential base station. In addition, after acquiring the original satellite measurement information, the access network device does not need to send it to the network server to make a decision to send the satellite differential data of the virtual differential reference station to the mobile station via the Internet, but directly reports it to the positioning server. It is then delivered to the mobile station by the positioning server. Therefore, the present application can acquire satellite differential data of the same or similar quality at a lower cost.

In some possible designs, the access network device includes a device management platform and a satellite receiving device that are communicatively connected through an encapsulated interface; the access network device obtains original satellite measurement information obtained by its own measurement, and the access network device Converting the original satellite measurement information into satellite differential data includes:

The satellite receiving device acquires the original satellite measurement information, and sends the original satellite measurement information to the device management platform through the encapsulation interface;

The device management platform converts the original satellite measurement information into the satellite differential data according to a predefined data format.

It can be seen that the introduction of satellite receiving equipment in the access network equipment enables the access network equipment to meet the performance requirements of the receiver as a differential reference station. The division of labor between the satellite receiving equipment and the equipment management platform is clear, and satellites in the existing mechanism can be obtained. The satellite differential data with the same or similar differential data provides a reference basis for the subsequent positioning server to determine whether the access network device has the conditions to serve as a differential reference station.

In some possible designs, the original satellite measurement information includes at least satellite navigation information, satellite status information, and original satellite measurement value information, and the method further includes:

The device management platform generates output parameters, and sends the output parameters to the satellite receiving device through the encapsulation interface. The output parameters include an output period of satellite navigation information, an output period of satellite status information, and original satellite measurement values. Information output period.

In some possible designs, the method further includes:

Receiving, by the access network device, a first message from the positioning server, and reporting the hardware capability information of the access network device to the positioning server according to an indication of the first message;

The access network device receives a second message from the positioning server, and reports satellite differential data of the access network device to the positioning server according to an instruction of the second message, and the reported satellite differential data is used for The positioning server performs quality assessment on the access network device and determines whether the access network device meets a condition as a differential reference station.

It can be seen that in the process of determining the candidate reference station by the positioning server, the access network device provides satellite differential data to the positioning server, which in turn provides an accurate basis for the positioning server's ability to evaluate each access network device as a reference station, which makes the positioning server The satellite differential data reported by the network access equipment in real time for quality evaluation makes the final evaluation result more accurate. Correspondingly, the candidate reference station finally determined by the positioning server can better achieve the performance of the reference station.

In some possible designs, the method further includes:

The access network device receives a third message from the positioning server, performs quality evaluation on the acquired original satellite measurement information according to an instruction of the third message, and reports an evaluation result to the positioning server, where the evaluation result is used for The positioning server judges whether the access network device satisfies a condition as a differential reference station.

It can be seen that in the process of determining the candidate base station by the positioning server, the access network device performs a quality assessment according to the instructions of the positioning server, and then feeds back the evaluation result to the positioning server. Improve the efficiency of determining candidate base stations.

In a second aspect, an embodiment of the present application provides a data transmission method, where the method includes:

The positioning server receives satellite differential data from an access network device and a positioning request from a mobile station, and the satellite differential data is converted according to the original satellite measurement information.

The positioning server determines location information of the mobile station according to the positioning request.

The positioning server sends the satellite differential data to the mobile station through the access network device according to the position information.

Compared with the existing mechanism, in the embodiment of the present application, in the embodiment of the present application, the transceiver module acquires satellite differential data obtained from the original satellite measurement information from the access network device, and the processing module determines the position information of the mobile station according to the positioning request. Then, the satellite differential data may be sent to the mobile station according to the position information. In this way, the positioning server in the embodiment of the present application does not need to first virtualize a differential reference station near the mobile station, and then calculate the satellite differential data of the differential reference station. Compared with the existing mechanism, it ensures the accuracy of the satellite differential data. At the same time, it can also effectively reduce the acquisition time and transmission delay of satellite differential data.

In some possible designs, the method further includes:

The positioning server sends a first message to multiple access network devices within a coverage area, where the first message is used to instruct each access network device to report hardware capability information of the access network device;

Receiving, by the positioning server, hardware capability information from multiple access network devices, and determining multiple candidate reference stations from multiple access network devices according to the hardware capability information of the multiple access network devices;

Sending, by the positioning server, a second message to each of the plurality of candidate reference stations, and the second message is used to instruct each candidate reference station to report satellite differential data;

After the positioning server receives satellite differential data of candidate reference stations from each candidate reference station, it performs quality evaluation on the received satellite differential data of each candidate reference station, and adds candidate reference stations whose evaluation results meet the conditions of being a differential reference station. Base station candidate queue.

It can be seen that in the process of determining the candidate reference station, the positioning server requests the access network device to provide satellite differential data, thereby achieving the capability evaluation of each access network device as a reference station. Because the positioning server performs the evaluation based on the access network device The satellite differential data reported in real time, so the final evaluation result is more accurate. Accordingly, the candidate reference station finally determined by the positioning server can better achieve the performance of the reference station.

In some possible designs, the method further includes:

Sending, by the positioning server, a third message to each of the plurality of candidate reference stations, the third message is used to instruct each candidate reference station to perform quality evaluation on the acquired original satellite measurement information and report the evaluation result;

After receiving the evaluation result of the candidate reference station from each candidate reference station, the positioning server adds the candidate reference station whose evaluation result satisfies the condition as a differential reference station to the reference station candidate queue.

It can be seen that in the process of determining the candidate reference station, the positioning server instructs the access network device to perform quality evaluation, and then feeds back the evaluation result to the positioning server. The positioning server determines the candidate reference station based on the evaluation result, which can reduce the calculation load of the positioning server And operating costs to improve the efficiency of identifying candidate base stations.

In some possible designs, after the candidate reference station whose evaluation result satisfies a condition as a differential reference station is added to a reference station candidate queue, the method further includes:

The positioning server determines a plurality of target base stations within the coverage area from the base station candidate queue according to a predefined coverage area and position information of each base station in the base station candidate queue.

In some possible designs, within the coverage area, the distribution density of the plurality of target reference stations is less than a preset distribution density, and the number of the plurality of target reference stations is less than a first value. It can be seen that the positioning server selects the most suitable part of the access network equipment as the target reference station from multiple candidate reference stations, and does not need to upgrade all candidate reference stations to target reference stations. While ensuring high positioning performance, it is as decentralized as possible. The distribution of each target base station can reduce operating and deployment costs to a certain extent.

In some possible designs, the coverage range is included in a total coverage range of the plurality of target reference stations, and an evaluation result of at least one of the target reference stations is higher than a preset data quality. It can be seen that under the condition that the coverage area is up to standard, the positioning server preferentially selects an access network device that reports better satellite differential data quality as the target reference station, which can further improve the positioning performance of the reference station network to a certain extent.

In some possible designs, the method further includes:

The positioning server sends a fourth message to all access network devices in the coverage area, and the fourth message is used to instruct each access network device to report the latest satellite differential data of the access network device;

Receiving, by the positioning server, the latest satellite differential data from a plurality of the access network devices, and updating the reference station candidate queue according to the network status in the current coverage area and the latest satellite differential data of the plurality of access network devices;

Determining, by the positioning server, a plurality of target reference stations from the updated reference station candidate queue according to the location distribution of each access network device within the coverage area, and sending a fifth message to each of the target reference stations, The fifth message is used to instruct the target reference station to periodically report the latest satellite differential data obtained.

It can be seen that the positioning server can ensure that the entire base station network can be in a healthy state for a long time by continuously monitoring, quality evaluation and updating the base stations in the candidate base station pair, and continuously provide mobile stations with better positioning services.

In a third aspect, an embodiment of the present application provides an access network device having a function of implementing a method corresponding to the data transmission provided in the first aspect. The functions may be implemented by hardware, and may also be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, and the modules may be software and / or hardware.

In a possible design, the access network device includes:

A transceiver module, configured to obtain the original satellite measurement information obtained by its own measurement;

A processing module, configured to convert the original satellite measurement information into satellite differential data; and send the satellite differential data to a positioning server through the transceiver module.

In a possible design, the access network device includes a device management platform and a satellite receiving device that are communicatively connected through an encapsulated interface; and the transceiver module is configured to obtain the original satellite measurement information and send the original satellite measurement information to the A device management platform sends the original satellite measurement information;

The processing module is configured to convert the original satellite measurement information into the satellite differential data according to a predefined data format.

In a possible design, the original satellite measurement information includes at least satellite navigation information, satellite status information, and original satellite measurement value information, and the processing module is further configured to:

Generate output parameters, and send the output parameters to the satellite receiving device through the encapsulation interface. The output parameters include an output period of satellite navigation information, an output period of satellite status information, and an output period of original satellite measurement value information.

In a possible design, the transceiver module is further configured to:

Receiving a first message from the positioning server, and reporting hardware capability information of the access network device to the positioning server according to an indication of the first message;

Receiving a second message from the positioning server, and reporting satellite differential data of the access network device to the positioning server according to an instruction of the second message, where the satellite differential data is used by the positioning server to interface with the interface The network access device performs quality assessment and judges whether the access network device meets the conditions as a differential reference station.

In a possible design, the transceiver module is further configured to:

Receive a third message from the positioning server, perform a quality evaluation on the acquired original satellite measurement information according to the instructions of the third message, and report an evaluation result to the positioning server, where the evaluation result is used by the positioning server to determine Describes whether the access network equipment satisfies the conditions as a differential reference station.

In a fourth aspect, an embodiment of the present application provides a positioning server having a function of implementing a method corresponding to the data transmission provided in the second aspect. The functions may be implemented by hardware, and may also be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, and the modules may be software and / or hardware.

In a possible design, the positioning server includes:

A transceiver module, configured to receive satellite differential data from an access network device and a positioning request from a mobile station, where the satellite differential data is converted according to the original satellite measurement information;

A processing module, configured to determine position information of the mobile station according to the positioning request;

The transceiver module is further configured to send the satellite differential data to the mobile station through the access network device according to the location information.

In a possible design, the processing module is further configured to:

Sending a first message to multiple access network devices in the coverage area through the transceiver module, where the first message is used to instruct each access network device to report hardware capability information of the access network device;

Receiving hardware capability information from multiple access network devices through the transceiver module, and determining multiple candidate reference stations from multiple access network devices according to the hardware capability information of the multiple access network devices;

Sending a second message to the plurality of candidate reference stations through the transceiver module, where the second message is used to instruct each candidate reference station to report satellite differential data;

After receiving the satellite differential data of the candidate reference stations from the candidate reference stations through the transceiver module, the quality evaluation is performed on the satellite differential data of the candidate reference stations received by the transceiver module, and the evaluation result satisfies the conditions as a differential reference station Of candidate base stations join the base station candidate queue.

In a possible design, the processing module is further configured to:

Sending a third message to the plurality of candidate reference stations through the transceiver module, where the third message is used to instruct each candidate reference station to perform quality evaluation on the acquired original satellite measurement information and report the evaluation result;

After receiving the evaluation result of the candidate reference station from each candidate reference station through the transceiver module, the candidate reference station whose evaluation result satisfies the condition as a differential reference station is added to the reference station candidate queue.

In a possible design, the processing module is further configured to: after adding the candidate reference station whose evaluation result satisfies a condition as a differential reference station to the reference station candidate queue:

According to a predefined coverage area and position information of each base station in the base station candidate queue, a plurality of target base stations within the coverage area are determined from the base station candidate queue.

In a possible design, within the coverage area, the distribution density of the plurality of target reference stations is less than a preset distribution density, and the number of the plurality of target reference stations is less than a first value.

In a possible design, the coverage range is included in a total coverage range of the plurality of target reference stations, and an evaluation result of at least one of the target reference stations is higher than a preset data quality.

In a possible design, the processing module is further configured to:

Sending a fourth message to all access network devices in the coverage area through the transceiver module, where the fourth message is used to instruct each access network device to report the latest satellite differential data of the access network device;

Receiving the latest satellite differential data from a plurality of the access network devices through the transceiver module, and updating the reference station candidate queue according to the network status in the current coverage area and the latest satellite differential data of the plurality of access network devices;

Determining a plurality of target reference stations from the updated candidate station queue for the reference station according to the location distribution of each access network device within the coverage area;

A fifth message is sent to each of the target reference stations through the transceiver module, and the fifth message is used to instruct the target reference station to periodically report the latest satellite differential data obtained.

In a fifth aspect, an embodiment of the present application provides a communication system having a function of implementing the data transmission method in the first aspect or the second aspect. The functions may be implemented by hardware, and may also be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, and the modules may be software and / or hardware.

In a possible design, the communication system includes:

A mobile station, an access network device according to the third aspect, and a positioning server according to the fourth aspect.

According to a sixth aspect, an embodiment of the present application provides a communication device, where the communication device includes:

At least one processor, memory, and transceiver;

Wherein, the memory is used to store program code, and the processor is used to call the program code in the memory to perform an operation performed by an access network device as in the first aspect or any possible design of the first aspect, Or it is used to call the program code in the memory to perform the operations performed by the positioning server as in the second aspect or any possible design of the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer storage medium including instructions that, when run on a computer, causes the computer to execute the access network device as in the first aspect or any possible design of the first aspect The operation performed, or the operation performed by the positioning server as in the second aspect or any possible design of the second aspect.

In an eighth aspect, in the embodiments of the present application, a computer program product including instructions is provided, and when the computer program product is run on a computer, the computer is executed by the access network in the first aspect or any possible design of the first aspect. The operation performed by the device, or the operation performed by the positioning server as in the second aspect or any possible design of the second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application; FIG.

2 is a schematic structural diagram of an access network device according to an embodiment of the present application;

3 is a schematic flowchart of a data transmission method according to an embodiment of the present application;

4 is a flowchart of a positioning server determining a candidate reference station that meets the requirements of the reference station in the embodiment of the present application;

5 is a flowchart of a positioning server determining a candidate reference station that meets the requirements of the reference station in the embodiment of the present application;

FIG. 6 is a schematic diagram of a distribution of candidate reference stations, target reference stations, backup reference stations, and other access network devices in an embodiment of the present application; FIG.

7 is a schematic flowchart of a process in which a positioning server continuously monitors, evaluates, and updates a base station according to an embodiment of the present application;

8 is a schematic structural diagram of an access network device according to an embodiment of the present application;

9 is a schematic structural diagram of a positioning server according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a physical device that performs a data transmission method according to an embodiment of the present application; FIG.

FIG. 11 is another schematic structural diagram of a positioning server according to an embodiment of the present application.

detailed description

The terms "first" and "second" in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than what is illustrated or described herein. Furthermore, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or modules need not be limited to those explicitly listed Those steps or modules may instead include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or equipment. The division of the modules appearing in this application is only a logical division. In actual applications, there can be other divisions. For example, multiple modules can be combined or integrated in another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual The coupling or direct coupling or communication connection may be through some interfaces, and the indirect coupling or communication connection between the modules may be electrical or other similar forms, which are not limited in this application. In addition, the modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed into multiple circuit modules, and some or all of them may be selected according to actual needs. Module to achieve the objectives of the solutions in the embodiments of the present application.

The embodiments of the present application provide a data transmission method, device, and storage medium, which are used in the field of wireless communication technology, and can solve the problem of high transmission delay of satellite differential data in the existing mechanism in the prior art. The network element involved in this application includes at least one positioning server, at least one mobile station, and at least one access network device. As shown in FIG. 1, the access network device can obtain the original satellite measurement information of the satellite, and The original satellite measurement information is converted into satellite differential data, and the satellite differential data is reported to a positioning server. The positioning server determines an access network device serving as a differential reference station near the mobile station based on the rough position of the mobile station, and then determines the access network device. The satellite differential data corresponding to the network access device is transmitted to the mobile station through the access network device, so that the mobile station can perform accurate positioning according to the satellite differential data.

The following describes the structure of an access network device in the embodiment of the present application. As shown in FIG. 2, the access network device includes a device management platform and a satellite receiving device. The access network device may also include a lower-level platform and device management The platform and the satellite receiving device can be communicatively connected through the package interface of the underlying platform.

The device management platform may be configured to generate output parameters of a satellite receiving device, and send the output parameters to the satellite receiving device through the packaging interface. The output parameters may include an output period of satellite navigation information, an output period of satellite status information, and an output period of original satellite measurement value information.

The satellite receiving device may periodically obtain the original satellite measurement information of the access network device, and output the original satellite measurement information to the device management platform through the encapsulation interface in the underlying platform. The original satellite measurement information includes at least satellite navigation information, satellite status information, and original satellite measurement value information. In some implementation manners, the periods in which the satellite receiving device acquires and outputs satellite navigation information, satellite status information, and original satellite measurement value information may be the same or different, which is not limited in this application. For example, a satellite receiving device may acquire and output satellite navigation information at a period of every 30 seconds, acquire and output satellite status information at a period of 1 second, and acquire and output raw satellite measurement information at a period of 1 second. Among them, the satellite navigation information includes satellite orbit information and satellite period. The satellite status information mainly includes the health status of each satellite and the elevation angle of each satellite. The original satellite measurement value information may include a pseudo-range measurement value, a carrier phase measurement value, and a Doppler measurement value, which are not specifically limited in this application.

The access network device involved in this embodiment of the present application is a device that connects a mobile station to a wireless network, which is also referred to as a base station, including but not limited to: evolved Node B (English full name: evolved Node Base, English Abbreviation: eNB), wireless network controller (full name in English: Radio Network Controller, English abbreviation: RNC), node B (full English name: Node B, English abbreviation: NB), base station controller (full English name: Base Station Controller, English Abbreviation: BSC), Base Transceiver Station (full name in English: Base Transceiver Station, English abbreviation: BTS), home base station (e.g. Home NodeB, or Home NodeB, English abbreviation: HNB), baseband unit , English abbreviation: BBU).

The mobile station involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. A wireless terminal can communicate with one or more core networks via a wireless access network (full name in English: Radio Access Network, RAN for short). The wireless terminal can be a mobile terminal, such as a mobile phone (or a "cellular" phone) And computers with mobile terminals, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices that exchange voice and / or data with a wireless access network. For example, personal communication service (full name in English: Personal Communication Service (English: PCS) phone, cordless phone, session initiation protocol (SIP) telephone, wireless local loop (English: WLL) station, personal digital assistant (English full name: Personal Digital Assistant, English abbreviation: PDA) and other equipment. A wireless terminal can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, an access point, and an access point. Remote terminal (Remote Terminal), access terminal (Access terminal), user terminal (User terminal), terminal equipment, user agent (User Agent), user equipment (User Device), or user equipment (User Equipment).

In the existing mechanism, in order to ensure positioning accuracy, a large number of differential reference stations other than these base stations need to be established, which will increase construction costs and operating costs, and cannot meet the wide-area differential service coverage and low-cost operation of consumer-level positioning. A differential reference station is virtualized near the station. After acquiring the original satellite measurement information, the access network device needs to send it to the network server to make a decision to send the satellite differential data of the virtual differential reference station to the mobile station via the Internet. The entire differential data is transmitted. The delay is longer. To solve the above technical problems, the embodiments of the present application mainly provide the following technical solutions:

Because the quality of the original satellite measurement information is mainly related to the antenna, receiver, and environment, the access network equipment can meet the requirements of the differential reference station in these three dimensions (that is, antenna, receiver, and environment). The application can directly use the deployed access network equipment to obtain the original satellite measurement information, that is, the deployed access network equipment that meets the requirements of the differential reference station is used as the differential reference station. In addition, after acquiring the original satellite measurement information, the access network device converts the original satellite measurement information into satellite differential data and reports it to the positioning server, and then sends the positioning server to the mobile station. Therefore, the present application can acquire satellite differential data of the same or similar quality at a lower cost. Because no virtual reference station is needed, the resulting satellite differential data has higher accuracy.

As shown in FIG. 3, the following describes a data transmission method provided by the present application. The method includes:

301. The access network device obtains the original satellite measurement information obtained by its own measurement.

The original satellite measurement information includes at least satellite navigation information, satellite status information, and original satellite measurement value information. Satellite navigation information includes satellite orbit information and satellite cycles. The satellite status information mainly includes the health status of each satellite and the elevation angle of each satellite. The original satellite measurement value information may include a pseudo-range measurement value, a carrier phase measurement value, and a Doppler measurement value, which are not specifically limited in this application.

In some embodiments, the satellite receiving device acquires the original satellite measurement information, and sends the original satellite measurement information to the device management platform through the encapsulation interface.

In some embodiments, the satellite receiving device may obtain output parameters from a device management platform through a package interface, and then send the original satellite measurement information to the device management platform according to the output parameters. The output parameters include an output period of satellite navigation information, an output period of satellite status information, and an output period of original satellite measurement value information. An output period of satellite navigation information, an output period of satellite status information, and an output period of original satellite measurement value information. It may be the same or different, and the specific embodiments of the present application are not limited. For example, a satellite receiving device may acquire and output satellite navigation information at a period of every 30 seconds, acquire and output satellite status information at a period of 1 second, and acquire and output raw satellite measurement information at a period of 1 second.

302. The access network device converts the original satellite measurement information into satellite differential data.

In some embodiments, the original satellite measurement information is converted into data in a preset data format, that is, satellite differential data according to a preset data format. The preset data format can be the standard format of the Radio Technical Commission for Maritime Services (RTCM) and the 3rd Generation Partnership Project (3GPP) standard format, or other international standards. The format is not limited in this application. For example, the original satellite measurement information is converted into data in the data format RTCM3, that is, the satellite differential data finally obtained. The satellite differential data includes part or all of the same information as the original satellite measurement information, and may also include information used for satellite differential positioning (such as the precise position of the reference station antenna), which is different from the data format of the original satellite measurement information.

In some embodiments, after the device management platform receives the original satellite measurement information from the satellite receiving device through the encapsulation interface, the device management platform converts the original satellite measurement information according to a predefined data format. Into the satellite differential data.

303. The access network device sends the satellite differential data to a positioning server.

304. The positioning server receives satellite differential data from the access network device and a positioning request from the mobile station.

Wherein, the satellite differential data is converted according to the original satellite measurement information.

In the embodiment of the present application, the timing relationship between the positioning server receiving the satellite differential data from the access network device and receiving the positioning request from the mobile station is not limited. Steps 301 to 303 may be performed periodically by the access network device, and are not restricted by whether the mobile station initiates a positioning request.

305. The positioning server determines position information of the mobile station according to the positioning request, and sends the satellite differential data to the mobile station through the access network device according to the position information.

306. The mobile station receives satellite differential data from an access network device.

In the embodiment of the present application, the deployed access network device is used to obtain the original satellite measurement information. Based on the original satellite measurement information measured by the deployed access network device itself, the quality of the satellite differential data in the existing mechanism can be obtained. Similar or the same satellite differential data, that is, the existing access network equipment is used as a differential reference station. There is no need to build a large number of differential reference stations other than these base stations, and it is not necessary for a positioning server to virtually create a differential reference station near the mobile station. . In addition, after acquiring the original satellite measurement information, the access network device does not need to send it to the network server to make a decision to send the satellite differential data of the virtual differential reference station to the mobile station via the Internet, but directly sends the original satellite measurement information. It is converted into satellite differential data and reported to the positioning server, and then sent to the mobile station by the positioning server. It can be seen that in the existing mechanism, the positioning server needs to first virtualize a differential reference station near the mobile station, and then calculate the differential reference station. Compared with satellite differential data, this application can obtain satellite differential data of the same quality or similar quality at a lower cost, and can also effectively reduce the acquisition delay and transmission delay of satellite differential data.

Optionally, in some embodiments of the present application, two methods of how the positioning server determines candidate reference stations that meet the requirements of the reference station are respectively introduced below. The two methods include the process shown in FIG. 4 and FIG. 5. Process. The following are introduced separately. As shown in FIG. 4, the embodiment of the present application includes:

401. The positioning server sends a first message to multiple access network devices in a coverage area.

The first message is used to instruct each access network device to report hardware capability information of the access network device.

402. The access network device receives a first message from the positioning server, and reports hardware capability information of the access network device to the positioning server according to an instruction of the first message.

Among them, the hardware capability information of the access network device includes satellite receiving device information and satellite antenna information. The satellite receiving device information may include whether the access network device includes a satellite receiving device, and whether the performance of the satellite receiving device meets the access network device as a benchmark. Station hardware conditions. The satellite antenna information includes whether the access network equipment includes a satellite antenna, and whether the performance of the satellite antenna satisfies a preset receiving performance. For example, the hardware capability information may include: whether an access network device has a star card installed, and whether the performance of the star card meets the hardware conditions of the access network device as a reference station. The embodiment of the present application does not limit the presentation manner of the satellite receiving device and satellite antenna information in the hardware capability information. For example, it may be agreed that the access network device includes a satellite receiving device, and it is indicated as a flag bit 1 in the hardware capability information, and the access network If the device does not include a satellite receiving device, it is indicated as a flag bit 0 in the hardware capability information.

403. The positioning server receives hardware capability information from multiple access network devices, and determines multiple candidate reference stations from multiple access network devices according to the hardware capability information of multiple access network devices. .

404. The positioning server sends a second message to the multiple candidate reference stations, respectively.

The second message is used to instruct each candidate reference station to report satellite differential data.

405. The access network device serving as a candidate reference station receives a second message from the positioning server, and reports satellite difference data of the access network device to the positioning server according to an instruction of the second message.

Wherein, the reported satellite differential data is used by the positioning server to evaluate the quality of the access network device and determine whether the access network device meets the conditions as a differential reference station.

406. After receiving the satellite differential data of the candidate reference stations from the candidate reference stations, the positioning server performs quality evaluation on the received satellite differential data of each candidate reference station, and uses the evaluation result to satisfy the candidate reference as a condition of the differential reference station. The station joins the base station candidate queue.

In the embodiment of the present application, in the process of determining the candidate reference station, the positioning server requests the access network device to provide satellite differential data, thereby realizing the capability evaluation of each access network device as the reference station. The satellite differential data reported by the access network equipment in real time, so the final evaluation result is more accurate. Accordingly, the candidate reference station finally determined by the positioning server can better achieve the performance of the reference station.

As shown in FIG. 5, the embodiment of the present application includes:

501. The positioning server sends a first message to multiple access network devices in a coverage area.

502. The access network device receives a first message from the positioning server, and reports hardware capability information of the access network device to the positioning server according to an instruction of the first message.

503. The positioning server receives hardware capability information from multiple access network devices, and determines multiple candidate reference stations from multiple access network devices according to the hardware capability information of multiple access network devices. .

504. The positioning server separately sends a third message to the multiple candidate reference stations, where the third message is used to instruct each candidate reference station to perform quality evaluation on the acquired original satellite measurement information and report the evaluation result.

505. The access network device receives a third message from the positioning server, performs quality evaluation on the acquired original satellite measurement information according to an instruction of the third message, and reports an evaluation result to the positioning server.

The evaluation result is used by the positioning server to determine whether the access network device satisfies a condition as a differential reference station.

506. After receiving the evaluation result of the candidate reference station from each candidate reference station, the positioning server adds the candidate reference station whose evaluation result satisfies the condition as a differential reference station to the reference station candidate queue.

In the embodiment of the present application, in the process of determining the candidate reference station, the positioning server instructs the access network device to perform quality evaluation, and then feeds back the evaluation result to the positioning server. The positioning server determines the candidate reference station based on the evaluation result, which can reduce positioning The computing load and operating cost of the server improve the efficiency of determining candidate base stations.

On the basis of the embodiment corresponding to FIG. 4 or FIG. 5 above, after the candidate reference station that satisfies the condition that is a differential reference station is added to the reference station candidate queue, the positioning server may select a target reference station, details as follows:

The positioning server determines a plurality of target base stations within the coverage area from the base station candidate queue according to a predefined coverage area and position information of each base station in the base station candidate queue. When the positioning server selects the target base station, the following two strategies can be referred to:

In some embodiments, the positioning server may select a target base station using a minimum base station strategy. For example, the minimum reference station number policy can satisfy: within the coverage area, the distribution density of the plurality of target reference stations is less than a preset distribution density, and the number of the plurality of target reference stations is less than a first value. It can be seen that the positioning server selects the most suitable part of the access network equipment as the target reference station from multiple candidate reference stations. Instead of upgrading all candidate reference stations to target reference stations, it is possible to disperse each target as much as possible under the premise of ensuring performance The distribution of reference stations achieves the purpose of covering the required area with the minimum number of reference stations. The embodiment of the present application does not limit the range of the preset distribution density and the first value.

In other embodiments, the positioning server may select a target base station using a minimum base station number strategy. For example, the optimal performance policy may satisfy that the coverage range is included in a total coverage range of the plurality of target reference stations, and an evaluation result of at least one of the target reference stations is higher than a preset data quality. That is, under the condition that the coverage area is up to standard, the positioning server selects an access network device that reports better satellite differential data quality as the target reference station, which can further improve the positioning performance of the reference station network to a certain extent. The embodiment of the present application does not limit the value range of the preset data quality.

In other embodiments, in order to improve the robustness of the base station network, in addition to the base stations necessary for the coverage area, some other access network devices may be activated as backup base stations. The embodiment of the present application does not limit the coverage rate of the backup reference station in the coverage area, and may increase or decrease the backup reference station according to the current network situation.

For example, FIG. 6 is a schematic diagram of a distribution of candidate base stations 2, target base stations 1, backup base stations 3, and other access network devices 4 that are finally obtained. As shown in FIG. 6, the base station candidate queue includes 11 base stations. Stations, of which there are 4 target base stations 1 officially opened, 7 candidate base stations 2 remaining active, 1

backup base station

3, and 1 other access network device 4. The total coverage area covered by the four target reference stations 1 (that is, the area formed by the four circular curves in FIG. 6) is larger than the coverage range indicated by the positioning requirements.

Optionally, in some embodiments of the present application, since the hardware capability information of the access network device is dynamically changed, the change of the hardware capability information of the access network device will affect the access network serving as the target reference station. Changes in the performance of the equipment or the coverage area indicated by the positioning requirements will cause the status of the base station network to change. Therefore, to ensure that the entire base station network can be in a healthy state for a long time, and continue to provide mobile stations with better positioning services, the positioning server also needs to continuously monitor, evaluate and update the base station. As shown in FIG. 7, the embodiment of the present application includes:

701. The positioning server sends a fourth message to all access network devices in the coverage area.

The fourth message is used to instruct each access network device to report the latest satellite differential data of the access network device.

702. After receiving the fourth message, the access network device in the coverage area reports the latest satellite differential data obtained by the access network device to the positioning server.

703. The positioning server receives the latest satellite differential data from a plurality of the access network devices, and updates the reference station candidate queue according to a network state in a current coverage area and the latest satellite differential data of the multiple access network devices. .

704. The positioning server determines a plurality of target reference stations from the updated candidate station queue for the reference station according to the location distribution of each access network device in the coverage area.

After step 704, the embodiment of the present application further includes:

705. The positioning server sends a fifth message to each of the target reference stations, where the fifth message is used to indicate that each of the target reference stations (that is, the access network device serving as the target reference station in FIG. 7) periodically. Report the latest satellite differential data obtained. After the access network device as the target reference station in FIG. 7 receives the fifth message, it can periodically report the latest satellite differential data obtained. Step 705 may also be considered as an activation process of reporting the latest satellite differential data to the target reference station.

In the embodiment of the present application, the positioning server can ensure that the entire network of reference stations can be in a healthy state for a long time through cyclic monitoring, quality evaluation, and updating the reference stations in the candidate pair of reference stations, and continuously provide mobile stations with better positioning services.

The original satellite measurement information, satellite differential data, output parameters, first message, second message, third message, fourth message, fifth message, hardware capability information, coverage area, and total coverage area appearing in the above embodiments Other technical features are also applicable to the embodiments corresponding to FIG. 8 to FIG. 10 in the present application, and the similarities are not repeated herein.

To facilitate understanding, the following uses the application scenario as an example. The positioning server is E-SMLC, and the access network device is a base station. The base station includes a device management platform, an underlying platform, and a satellite receiver. The underlying platform includes an encapsulation interface for encapsulating data. Taking the equipment management platform as an Equipment Management (EQM) module and the satellite receiving equipment as a star card as an example, the following describes the process of how the EQM module obtains satellite differential data:

The EQM module of the development platform configures the output parameters of the star card through the packaging interface of the underlying platform.

The satellite card periodically outputs satellite navigation information to the EQM module through a packaged interface with a period of 30 seconds. The EQM module will check the validity of the satellite navigation information and set the validity flag of the satellite navigation information, and then update / save the satellite navigation message to the local.

The star card periodically outputs satellite status information to the EQM module through a package interface with a period of 1 second. The EQM module will check the validity of the satellite status information and set the validity flag of the satellite status information, and update / save the satellite navigation message to the local.

The star card periodically outputs the original satellite measurement value information to the EQM module through a package interface with a period of 1 second. The EQM module will check the validity of the message and set the validity flag of the original satellite measurement information, and update / save the original satellite measurement information to the local.

The EQM module sorts the satellite navigation information, satellite status information, and original satellite measurement information obtained from the star card into a standard data format. The final sorted data format of the satellite differential data is RTCM3. The satellite differential data is sent to an enhanced mobile positioning service center (E-SMLC), and the E-SMLC provides the satellite differential data to the mobile station.

The data transmission method in the present application is described above, and the access network device and the positioning server that perform the above data transmission method are described below.

As shown in the structural diagram of an access network device 80 shown in FIG. 8, the access network device 80 in the embodiment of the present application can implement access control corresponding to any one of the foregoing embodiments corresponding to FIG. 3 to FIG. 7. Steps in a method of data transmission performed by a network device. The functions implemented by the access network device 80 may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, and the modules may be software and / or hardware. The access network device 80 may include a transceiver module 801 and a processing module 802. The processing module 802 may be configured to control a transceiver operation of the transceiver module. For the implementation of the function of the processing module 802, reference may be made to operations such as conversion of the original satellite measurement information into satellite differential data by the access network device in the embodiments corresponding to any of FIG. 3 to FIG. 7, and details are not described herein. For the function implementation of the transceiver module 801, reference may be made to any of the corresponding embodiments in FIGS. 3 to 7 to obtain the original satellite measurement information, send satellite differential data, receive the first message, send hardware capability information, and Operations such as receiving a second message.

In some implementation manners, the transceiver module 801 may be configured to obtain original satellite measurement information obtained by measurement.

The processing module 802 may be configured to convert the original satellite measurement information into satellite differential data; and send the satellite differential data to a positioning server through the transceiver module.

In the embodiment of the present application, the transceiver module 801 in the access network device 80 uses the deployed access network device to obtain the original satellite measurement information, and the processing module 802 in the access network device 80 is based on the deployed access network device itself. The original satellite measurement information obtained from the measurement can be used to obtain satellite differential data with a quality similar to or the same as the satellite differential data in the existing mechanism. That is, the existing access network equipment is used as a differential reference station. The external differential reference station does not need to virtualize the differential reference station near the mobile station. Therefore, the present application can obtain satellite differential data of the same or similar quality at a lower cost.

Optionally, in some embodiments of the present application, the access network device 80 further includes a device management platform and a satellite receiving device that are communicatively connected through an encapsulation interface; the transceiver module is configured to obtain the original satellite measurement information, Sending the original satellite measurement information to the device management platform through the encapsulation interface;

Optionally, in some embodiments of the present application, the original satellite measurement information includes at least satellite navigation information, satellite status information, and original satellite measurement value information, and the processing module 802 is further configured to:

Generate output parameters, and send the output parameters to the satellite receiving device through the transceiver module 801. The output parameters include the output period of the satellite navigation information, the output period of the satellite status information, and the original satellite measurement value information. Output cycle.

Optionally, in some embodiments of the present application, the transceiver module 801 is further configured to:

Receiving a second message from the positioning server, and reporting satellite differential data of the access network device to the positioning server according to the instruction of the second message, and the reported satellite differential data is used by the positioning server for The access network device performs a quality assessment and judges whether the access network device meets a condition as a differential reference station.

As shown in the structural schematic diagram of a positioning server 90 shown in FIG. 9, the positioning server 90 in the embodiment of the present application can implement data corresponding to the data executed by the positioning server in any of the foregoing embodiments corresponding to FIG. 3 to FIG. 7. Steps in the method of transfer. The functions implemented by the positioning server 90 may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, and the modules may be software and / or hardware. The positioning server 90 may include a transceiver module 901 and a processing module 902. The processing module 902 may be configured to control a transceiver operation of the transceiver module 901. For the implementation of the function of the processing module 902, reference may be made to the embodiment corresponding to any of FIG. 3 to FIG. 7 to determine the location information of the mobile station by the positioning server, determine multiple candidate reference stations, quality assessment, and determine multiple target references. Operations such as adding a base station to a candidate base station and adding a candidate base station to the base station candidate queue are not repeated here. For the function implementation of the transceiver module 901, reference may be made to the corresponding embodiment in any of FIG. 3 to FIG. 7 to receive a satellite differential data, a positioning request, send a satellite differential data, send a first message, receive hardware capability information, Operations such as sending a second message and sending a third message.

In some implementations, the transceiver module 901 may be configured to receive satellite differential data from an access network device and a positioning request from a mobile station, and the satellite differential data is converted according to the original satellite measurement information.

The processing module 902 may be configured to determine location information of the mobile station according to the positioning request.

The transceiver module 901 is further configured to send the satellite differential data to the mobile station through the access network device according to the location information.

In the embodiment of the present application, the transceiver module 901 obtains satellite differential data obtained from the original satellite measurement information from the access network device, and after the processing module 902 determines the position information of the mobile station according to the positioning request, it can send the mobile station to the mobile according to the position information. The station sends the satellite differential data. In this way, the positioning server in the embodiment of the present application does not need to first virtualize a differential reference station near the mobile station, and then calculate the satellite differential data of the differential reference station. Compared with the existing mechanism, it ensures the accuracy of the satellite differential data. At the same time, it can also effectively reduce the acquisition time and transmission delay of satellite differential data.

Optionally, in some embodiments of the present application, the processing module 902 is further configured to:

Sending a first message to multiple access network devices in coverage through the transceiver module 901, where the first message is used to instruct each access network device to report hardware capability information of the access network device;

Receiving hardware capability information from multiple access network devices through the transceiver module 901, and determining multiple candidate reference stations from multiple access network devices according to the hardware capability information of the multiple access network devices ;

Sending a second message to the multiple candidate reference stations through the transceiver module 901, where the second message is used to instruct each candidate reference station to report satellite differential data;

After receiving the satellite differential data of the candidate reference stations from the candidate reference stations through the transceiver module 901, perform quality evaluation on the satellite differential data of each candidate reference station received by the transceiver module, and satisfy the evaluation result as Conditional candidate base stations join the base station candidate queue.

Sending a third message to the multiple candidate reference stations through the transceiver module 901, where the third message is used to instruct each candidate reference station to perform quality evaluation on the acquired original satellite measurement information and report the evaluation result;

After receiving the evaluation result of the candidate reference station from each candidate reference station through the transceiver module 901, the candidate reference station whose evaluation result satisfies the condition as a differential reference station is added to the reference station candidate queue.

Optionally, in some embodiments of the present application, the processing module 902 is further configured to: after adding the candidate reference station that satisfies an evaluation result as a differential reference station to the reference station candidate queue, to:

Optionally, in some embodiments of the present application, within the coverage area, the distribution density of the plurality of target reference stations is less than a preset distribution density, and the number of the plurality of target reference stations is less than a first value .

Optionally, in some embodiments of the present application, the coverage range is included in a total coverage range of the plurality of target reference stations, and an evaluation result of at least one of the target reference stations is higher than a preset data quality.

Optionally, in some embodiments of the present application, the processing module is further configured to:

Sending a fourth message to all access network devices in the coverage area through the transceiver module 901, where the fourth message is used to instruct each access network device to report the latest satellite differential data of the access network device;

Receive the latest satellite differential data from multiple access network devices through the transceiver module 901, and update the reference station candidate queue according to the network status in the current coverage area and the latest satellite differential data of multiple access network devices ;

A fifth message is sent to each of the target reference stations through the transceiver module 901, and the fifth message is used to instruct the target reference station to periodically report the latest satellite differential data obtained.

The access network device and the positioning server in the embodiment of the present application are introduced from the perspective of the modular functional entity, and the access network device and the positioning server in the embodiment of the present application are introduced from the perspective of hardware processing.

FIG. 10 is a schematic structural diagram of a communication device (including an access network device and a positioning server in the embodiment of the present application) that performs a data transmission method according to an embodiment of the present application, and may include at least one processor, at least one Transceiver, memory, at least one bus. The at least one processor, the at least one transceiver, and the memory may be connected through a bus or other methods. In FIG. 10, the connection through the bus is taken as an example.

The memory may include read-only memory and random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory (full name in English: non-volatile random access memory, English abbreviation: NVRAM). The memory stores an operating system and program instructions, executable modules or data structures, or a subset thereof, or an extended set thereof, where the program instructions may include various operation instructions for implementing various operations. The operating system may include various system programs for implementing various basic tasks and processing hardware-based tasks.

The processor may control the operation of the communication device that executes the data transmission method. The processor may also be referred to as a central processing unit (full English name: central processing unit, English abbreviation: CPU). In specific applications, the various components of the communication device are coupled together through a bus. The bus may include a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses may be referred to as buses in FIG. 10.

It should be noted that in the embodiments of the present application (including the embodiments shown in FIG. 8 and FIG. 9), the physical devices corresponding to all the transceiver modules may be transceivers, and the physical devices corresponding to all the processing modules may be processors. Device. Each device shown in FIGS. 8 and 9 may have the structure shown in FIG. 10. When one of the devices has the structure shown in FIG. 10, the processor and the transceiver in FIG. 10 implement the foregoing corresponding device. The processing module and the transceiver module provided by the device embodiment have the same or similar functions. The memory in FIG. 10 stores program code that the processor needs to call when executing the above-mentioned data transmission method. The transceiver may also be replaced by a receiver and a transmitter, and may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers. For example, the transceivers can be radio frequency (full English: radio frequency, English for short: RF) circuits. The memory may be integrated in the processor, or may be provided separately from the processor.

The methods disclosed in the above embodiments of the present application may be applied to the processor shown in FIG. 10 or implemented by the processor shown in FIG. 10. For example, in some implementations, the processor in FIG. 10 may call program instructions stored in a memory, and the processor specifically needs program code to be called when the processor executes the data transmission method in the embodiment of the present application.

For example, when the access network device has a structure as shown in FIG. 10, the memory storage processor in FIG. 10 needs to call program code that is executed when the above-mentioned method for performing data transmission is performed by the access network device. Specifically, the processor in FIG. 10 can call the program code in the memory to perform the following operations:

Acquiring the original satellite measurement information obtained by the transceiver through the transceiver;

Convert the original satellite measurement information into satellite differential data; and send the satellite differential data to a positioning server through the transceiver.

For another example, when the positioning server has a structure as shown in FIG. 10, the memory in FIG. 10 stores program code that needs to be called when the processor executes the above-mentioned method for performing data transmission by the positioning server. Specifically, the processor in FIG. 10 can call the program code in the memory to perform the following operations:

Receiving satellite differential data from an access network device and a positioning request from a mobile station through the transceiver, and the satellite differential data is converted according to the original satellite measurement information;

Determining location information of the mobile station according to the positioning request;

Sending the satellite differential data to the mobile station through the access network device through the transceiver according to the location information.

The embodiment of the present application also provides another server. As shown in the schematic structural diagram shown in FIG. 11, the server 1100 may have a relatively large difference due to different configurations or performance, and may include one or more central processing units (full English name: central). processing units (English abbreviation: CPU) 1122 (for example, one or more processors), input-output interface 1158, and memory 1132, and the server may also include one or more storage media 1130 (for example, one Or a storage device in Shanghai).

The central processing unit 1122 may be configured to communicate with the storage medium 1130, and execute a series of instruction operations in the storage medium 1130 on the server 1100. The CPU 1122 may correspond to the processing module in FIG. 9 or the processor shown in FIG. 10, and the storage medium 1130 may correspond to the memory shown in FIG. 10.

The input / output interface 1158 may correspond to the transceiver module 901 in FIG. 9 or the transceiver shown in FIG. 10.

The memory 1132 and the storage medium 1130 may be temporary storage or persistent storage. The program stored in the storage medium 1130 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the server.

The server 1100 may also include one or more power sources 1126, one or more wired or wireless network interfaces 1150, one or more input / output interfaces 1158, and / or, one or more operating systems 1141, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD and more.

The steps performed by the positioning server in the foregoing embodiments may be based on the server structure shown in FIG. 11.

The present application also provides a computer storage medium that stores a program, and when the program is executed, the program includes part or all of the steps in the method in which the access network device or the positioning server performs the data transmission.

In the above embodiments, the description of each embodiment has its own emphasis. For a part that is not described in detail in one embodiment, reference may be made to related descriptions in other embodiments.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and modules described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner. For example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or modules, which may be electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the objective of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist separately physically, or two or more modules may be integrated into one module. The above integrated modules may be implemented in the form of hardware or software functional modules. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are wholly or partially generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by wire (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (Solid State Disk (SSD)), and the like.

The technical solutions provided in this application have been described in detail above. Specific examples have been used in this application to explain the principles and implementation of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. At the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation and scope of application. In summary, the content of this description should not be construed as a limitation on the present application.

Claims

A method for data transmission, characterized in that the method includes:

The access network equipment obtains the original satellite measurement information obtained by its own measurement;

The access network device converts the original satellite measurement information into satellite differential data;

The access network device sends the satellite differential data to a positioning server.
The method according to claim 1, wherein the access network device comprises a device management platform and a satellite receiving device connected through an encapsulation interface;

The access network device acquiring the original satellite measurement information obtained by itself, and the access network device converting the original satellite measurement information into satellite differential data includes:

The satellite receiving device acquires the original satellite measurement information, and sends the original satellite measurement information to the device management platform through the encapsulation interface;

The device management platform converts the original satellite measurement information into the satellite differential data according to a predefined data format.
The method according to claim 2, wherein the original satellite measurement information includes at least satellite navigation information, satellite status information, and original satellite measurement value information, and the method further comprises:

The device management platform generates output parameters, and sends the output parameters to the satellite receiving device through the encapsulation interface. The output parameters include an output period of satellite navigation information, an output period of satellite status information, and original satellite measurement values. Information output period.
The method according to any one of claims 1-3, wherein the method further comprises:

Receiving, by the access network device, a first message from the positioning server, and reporting the hardware capability information of the access network device to the positioning server according to an indication of the first message;

The access network device receives a second message from the positioning server, and reports satellite differential data of the access network device to the positioning server according to an instruction of the second message, and the reported satellite differential data is used for The positioning server performs quality assessment on the access network device and determines whether the access network device meets a condition as a differential reference station.
The method according to any one of claims 1-3, wherein the method further comprises:

Receiving, by the access network device, a first message from the positioning server, and reporting the hardware capability information of the access network device to the positioning server according to an indication of the first message;

The access network device receives a third message from the positioning server, performs quality evaluation on the acquired original satellite measurement information according to an instruction of the third message, and reports an evaluation result to the positioning server, where the evaluation result is used for The positioning server judges whether the access network device satisfies a condition as a differential reference station.
A method for data transmission, characterized in that the method includes:

The positioning server receives satellite differential data from an access network device and a positioning request from a mobile station, and the satellite differential data is converted according to the original satellite measurement information;

Determining, by the positioning server, location information of the mobile station according to the positioning request;

The positioning server sends the satellite differential data to the mobile station through the access network device according to the position information.
The method according to claim 6, further comprising:

The positioning server sends a first message to multiple access network devices within a coverage area, where the first message is used to instruct each access network device to report hardware capability information of the access network device;

Receiving, by the positioning server, hardware capability information from multiple access network devices, and determining multiple candidate reference stations from multiple access network devices according to the hardware capability information of the multiple access network devices;

Sending, by the positioning server, a second message to each of the plurality of candidate reference stations, and the second message is used to instruct each candidate reference station to report satellite differential data;

After the positioning server receives satellite differential data of candidate reference stations from each candidate reference station, it performs quality evaluation on the received satellite differential data of each candidate reference station, and adds candidate reference stations whose evaluation results meet the conditions of being a differential reference station. Base station candidate queue.
The method according to claim 6, further comprising:

The positioning server sends a first message to multiple access network devices within a coverage area, where the first message is used to instruct each access network device to report hardware capability information of the access network device;

Receiving, by the positioning server, hardware capability information from multiple access network devices, and determining multiple candidate reference stations from multiple access network devices according to the hardware capability information of the multiple access network devices;

Sending, by the positioning server, a third message to each of the plurality of candidate reference stations, the third message is used to instruct each candidate reference station to perform quality evaluation on the acquired original satellite measurement information and report the evaluation result;

After receiving the evaluation result of the candidate reference station from each candidate reference station, the positioning server adds the candidate reference station whose evaluation result satisfies the condition as a differential reference station to the reference station candidate queue.
The method according to claim 7 or 8, wherein after the candidate reference station that satisfies a condition that is a differential reference station is added to the reference station candidate queue, the method further comprises:

The positioning server determines a plurality of target base stations within the coverage area from the base station candidate queue according to a predefined coverage area and position information of each base station in the base station candidate queue.
The method according to claim 9, wherein in the coverage area, the distribution density of the plurality of target reference stations is smaller than a preset distribution density, and the number of the plurality of target reference stations is smaller than a first value .
The method according to claim 9 or 10, wherein the coverage range is included in a total coverage range of the plurality of target reference stations, and an evaluation result of at least one of the target reference stations is higher than a preset data quality.
The method according to any one of claims 9-11, wherein the method further comprises:

The positioning server sends a fourth message to all access network devices in the coverage area, and the fourth message is used to instruct each access network device to report the latest satellite differential data of the access network device;

Receiving, by the positioning server, the latest satellite differential data from a plurality of the access network devices, and updating the reference station candidate queue according to the network status in the current coverage area and the latest satellite differential data of the plurality of access network devices;

Determining, by the positioning server, a plurality of target reference stations from the updated reference station candidate queue according to the location distribution of each access network device within the coverage area, and sending a fifth message to each of the target reference stations, The fifth message is used to instruct the target reference station to periodically report the latest satellite differential data obtained.
An access network device, characterized in that the access network device includes:

A transceiver module, configured to obtain the original satellite measurement information obtained by its own measurement;

A processing module, configured to convert the original satellite measurement information into satellite differential data; and send the satellite differential data to a positioning server through the transceiver module.
The access network device according to claim 13, wherein the access network device comprises a device management platform and a satellite receiving device that are communicatively connected through an encapsulation interface; and the transceiver module is configured to obtain the original satellite measurement information Sending the original satellite measurement information to the device management platform through the encapsulation interface;

The processing module is configured to convert the original satellite measurement information into the satellite differential data according to a predefined data format.
The access network device according to claim 14, wherein the original satellite measurement information includes at least satellite navigation information, satellite status information, and original satellite measurement value information, and the transceiver module is further configured to:

Generate output parameters, and send the output parameters to the satellite receiving device through the transceiver module. The output parameters include an output period of satellite navigation information, an output period of satellite status information, and an output period of original satellite measurement value information.
The access network device according to any one of claims 13-15, wherein the transceiver module is further configured to:

Receiving a first message from the positioning server, and reporting hardware capability information of the access network device to the positioning server according to an indication of the first message;

Receiving a second message from the positioning server, and reporting satellite differential data of the access network device to the positioning server according to the instruction of the second message, and the reported satellite differential data is used by the positioning server for The access network device performs a quality assessment and judges whether the access network device meets a condition as a differential reference station.
The access network device according to any one of claims 13-15, wherein the transceiver module is further configured to:

Receiving a first message from the positioning server, and reporting hardware capability information of the access network device to the positioning server according to an indication of the first message;

Receiving a third message from the positioning server, performing a quality evaluation of the original satellite measurement information according to the indication of the third message, and reporting an evaluation result to the positioning server, where the evaluation result is used by the positioning server to determine the connection Whether the equipment connected to the network meets the requirements as a differential reference station.
A positioning server, wherein the positioning server includes:

A transceiver module, configured to receive satellite differential data from an access network device and a positioning request from a mobile station, where the satellite differential data is converted according to the original satellite measurement information;

A processing module, configured to determine position information of the mobile station according to the positioning request;

The transceiver module is further configured to send the satellite differential data to the mobile station through the access network device according to the location information.
The positioning server according to claim 18, wherein the processing module is further configured to:

Sending a first message to multiple access network devices in the coverage area through the transceiver module, where the first message is used to instruct each access network device to report hardware capability information of the access network device;

Receiving hardware capability information from multiple access network devices through the transceiver module, and determining multiple candidate reference stations from multiple access network devices according to the hardware capability information of the multiple access network devices;

Sending a second message to the plurality of candidate reference stations through the transceiver module, where the second message is used to instruct each candidate reference station to report satellite differential data;

After receiving the satellite differential data of the candidate reference stations from the candidate reference stations through the transceiver module, the quality evaluation is performed on the satellite differential data of the candidate reference stations received by the transceiver module, and the evaluation result satisfies the conditions as a differential reference station Of candidate base stations join the base station candidate queue.
The positioning server according to claim 18, wherein the processing module is further configured to:

Sending a first message to multiple access network devices in the coverage area through the transceiver module, where the first message is used to instruct each access network device to report hardware capability information of the access network device;

Receiving hardware capability information from multiple access network devices through the transceiver module, and determining multiple candidate reference stations from multiple access network devices according to the hardware capability information of the multiple access network devices;

Sending a third message to the plurality of candidate reference stations through the transceiver module, where the third message is used to instruct each candidate reference station to perform quality evaluation on the acquired original satellite measurement information and report the evaluation result;

After receiving the evaluation result of the candidate reference station from each candidate reference station through the transceiver module, the candidate reference station whose evaluation result satisfies the condition as a differential reference station is added to the reference station candidate queue.
The positioning server according to claim 19 or 20, wherein the processing module is further configured to: after the candidate reference station that satisfies an evaluation result as a differential reference station is added to a reference station candidate queue:

According to a predefined coverage area and position information of each base station in the base station candidate queue, a plurality of target base stations within the coverage area are determined from the base station candidate queue.
The positioning server according to claim 21, wherein in the coverage area, a distribution density of the plurality of target reference stations is smaller than a preset distribution density, and a number of the plurality of target reference stations is smaller than a first Value.
The positioning server according to claim 21 or 22, wherein the coverage range is included in a total coverage range of the plurality of target reference stations, and an evaluation result of at least one of the target reference stations is higher than a preset data quality .
The positioning server according to any one of claims 21 to 23, wherein the processing module is further configured to:

Sending a fourth message to all access network devices in the coverage area through the transceiver module, where the fourth message is used to instruct each access network device to report the latest satellite differential data of the access network device;

Receiving the latest satellite differential data from a plurality of the access network devices through the transceiver module, and updating the reference station candidate queue according to the network status in the current coverage area and the latest satellite differential data of the plurality of access network devices;

Determining a plurality of target reference stations from the updated reference station candidate queue according to the location distribution of each access network device within the coverage area, and sending a fifth message to each of the target reference stations through the transceiver module The fifth message is used to instruct the target reference station to periodically report the latest satellite differential data obtained.
A communication device, wherein the communication device includes:

At least one processor, memory, and transceiver;

The memory is used to store program code, and the processor is used to call the program code in the memory to perform an operation performed by an access network device according to any one of claims 1-5, or used to call all The program code in the memory performs the operations performed by the positioning server according to any one of claims 6-12.
A computer storage medium, characterized in that it contains instructions that, when run on a computer, causes the computer to perform the operations performed by the access network device according to any one of claims 1-5, or to perform the operations according to claim 6 Any of the operations performed by the location server.