CN115102923A - AGPS positioning starting method, device, equipment, medium and program product - Google Patents

AGPS positioning starting method, device, equipment, medium and program product Download PDF

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Publication number
CN115102923A
CN115102923A CN202210663586.4A CN202210663586A CN115102923A CN 115102923 A CN115102923 A CN 115102923A CN 202210663586 A CN202210663586 A CN 202210663586A CN 115102923 A CN115102923 A CN 115102923A
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China
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address
local
supl
terminal
domain name
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CN202210663586.4A
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CN115102923B (en
Inventor
张健
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
    • G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Abstract

The embodiment of the application discloses an AGPS positioning starting method, device, equipment, medium and program product, belonging to the technical field of auxiliary positioning. The method comprises the following steps: acquiring an SUPL domain name; inquiring a local IP address corresponding to the SUPL domain name from a local storage of the terminal; the local IP address is an IP address which is obtained from a DNS server and successfully accessed in the historical AGPS positioning process of the terminal; and successfully accessing the local IP address, and starting the AGPS positioning. The method can improve the access success rate and the access efficiency of the SUPL server IP address.

Description

AGPS positioning starting method, device, equipment, medium and program product
Technical Field
The embodiment of the application relates to the technical field of auxiliary positioning, in particular to an AGPS positioning starting method, device, equipment, medium and program product.
Background
An Assisted Global Positioning System (AGPS) is used for assisting Positioning by combining Positioning information of a base station provided by a mobile operator on the basis that a Global Positioning System (GPS) receives a Positioning signal through a satellite, so that the Positioning speed of a terminal (User Equipment, UE) can be increased.
When a terminal initiates AGPS positioning, a Secure User Plane Location (SUPL) Domain Name is acquired, then a Domain Name System (DNS) server is requested for SUPL Domain Name resolution, an Internet Protocol (IP) address is obtained, the IP address is accessed, and AGPS positioning is started.
In the above process, the situation that the IP address obtained by analysis is unavailable exists, which results in failure of the terminal to access the IP address and causes the AGPS to work normally.
Disclosure of Invention
The embodiment of the application provides an AGPS positioning starting method, device, equipment, medium and program product. The technical scheme is as follows:
according to an aspect of the present application, there is provided an AGPS positioning initiation method, where the method is performed by a terminal, and the method includes:
acquiring an SUPL domain name;
inquiring a local IP address corresponding to the SUPL domain name from a local storage of the terminal; the local IP address is an IP address which is obtained from a DNS server and successfully accessed in the historical AGPS positioning process of the terminal;
and successfully accessing the local IP address and starting AGPS positioning.
According to another aspect of the present application, there is provided an AGPS positioning initiation apparatus, the apparatus comprising:
an acquisition module for acquiring a SUPL domain name;
the query module is used for querying a local IP address corresponding to the SUPL domain name from a local storage of the terminal, wherein the local IP address is an IP address which is obtained from a DNS server and successfully accessed in the historical AGPS positioning process of the terminal;
and the access module is used for successfully accessing the local IP address and starting AGPS positioning.
According to another aspect of the present application, a terminal is provided, where the terminal includes a processor, and a memory connected to the processor, where the memory stores program instructions, and the processor executes the program instructions to implement the AGPS positioning start method according to the aspects of the present application.
According to another aspect of the present application, there is provided a computer readable storage medium having stored therein program instructions, which when executed by a processor, implement the AGPS positioning start-up method as provided in the various aspects of the present application.
According to another aspect of the present application, there is provided a computer program product (or computer program) comprising computer instructions stored in a computer readable storage medium; the processor of the computer device reads the computer instructions from the computer readable storage medium, and executes the computer instructions to cause the computer device to perform the method provided in the various alternative implementations of the AGPS positioning initiation method described above.
According to another aspect of the present application, there is provided a chip comprising programmable logic circuits and/or program instructions, which when executed, is configured to implement the AGPS positioning start-up method according to the various aspects of the present application.
The beneficial effects brought by the technical scheme provided by the embodiment of the application can include:
the terminal can inquire whether a local IP address corresponding to the SUPL domain name exists in a local storage or not in the process of starting the AGPS positioning, and directly accesses the local IP address under the condition of inquiring the local IP address corresponding to the SUPL domain name, wherein the local IP address is the IP address obtained by the terminal from the DNS server in the historical AGPS positioning process, and the terminal successfully accesses the local IP address and selects to access the local IP address. After the local IP address is successfully accessed, the SUPL domain name resolution does not need to be requested from the DNS, so that the step of acquiring the IP address by the SUPL domain name resolution is saved, the time spent by AGPS positioning is reduced, and the efficiency of successfully connecting the SUPL server is further improved.
Drawings
In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating an AGPS positioning initiation method according to an exemplary embodiment of the present application;
FIG. 2 illustrates a schematic diagram of a communication system provided by an exemplary embodiment of the present application;
fig. 3 is a flowchart illustrating an AGPS positioning initiation method according to another exemplary embodiment of the present application;
fig. 4 is a flowchart illustrating an AGPS positioning initiation method according to another exemplary embodiment of the present application;
fig. 5 is a flowchart illustrating an AGPS positioning initiation method according to another exemplary embodiment of the present application;
fig. 6 shows a flowchart of an AGPS positioning initiation method according to another exemplary embodiment of the present application;
fig. 7 is a flowchart illustrating an AGPS positioning initiation method according to another exemplary embodiment of the present application;
fig. 8 is a flowchart illustrating an AGPS positioning initiation method according to another exemplary embodiment of the present application;
FIG. 9 illustrates a block diagram of an AGPS location initiating device according to an exemplary embodiment of the present application;
fig. 10 shows a schematic structural diagram of a computer device provided in an exemplary embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
When a terminal initiates AGPS positioning, a SUPL domain name needs to be sent to a DNS (domain name server), the DNS is requested to analyze the SUPL domain name, a plurality of IP addresses corresponding to the SUPL domain name are obtained, and the SUPL server is accessed through one of the IP addresses. However, in some operator networks, not all resolved IP addresses are available, and if an unavailable IP address is accessed, AGPS cannot work normally.
In order to improve the success rate and efficiency of accessing the IP address corresponding to the SUPL domain name by the terminal, the application provides an AGPS positioning starting method, the IP address of the SUPL server which is successfully accessed can be stored in the terminal, and in the subsequent AGPS positioning process, the terminal can select the IP address of the SUPL server to be accessed based on the IP address which is successfully accessed. Exemplarily, as shown in fig. 1, a flowchart of an AGPS positioning initiation method provided in an exemplary embodiment of the present application is shown, where the method is performed by a terminal, and the method includes:
step 101, initiating AGPS positioning.
Exemplarily, an application program run by a terminal requests a positioning service, and the terminal initiates an AGPS positioning; or, the operating system operated by the terminal requests the positioning service, and the terminal initiates the AGPS positioning.
Step 102, connecting a DNS server.
After initiating AGPS positioning, the terminal connects with a DNS server; in response to the terminal successfully connecting to the DNS server, step 103 is executed; step 105 is performed in response to a failure of the terminal to connect to the DNS server.
Step 103, SUPL domain name resolution.
A terminal sends a domain name resolution request to a DNS (domain name server), wherein the domain name resolution request carries an SUPL (super high level language) domain name; responding to the domain name resolution request by a DNS server, and resolving the SUPL domain name to obtain at least two IP addresses; the terminal receives feedback information of the DNS server; in response to that the feedback information includes at least two IP addresses corresponding to the SUPL domain name, the terminal determines that the SUPL domain name resolution is successful, and then step 104 is executed; in response to the feedback information indicating that the SUPL domain name resolution fails, step 105 is performed.
Step 104, comparing the local IP address database.
The terminal is provided with a local IP address database, an IP list is stored in the local IP address database, SUPL domain names and IP addresses in the IP list are stored in a one-to-one correspondence mode, wherein the IP addresses stored in the IP list are IP addresses which are acquired from a DNS server in the historical process and successfully accessed by the terminal; the terminal inquires a local IP address corresponding to the SUPL domain name from an IP list and matches the at least two IP addresses with the local IP address respectively; responding to the local IP address existing in the at least two IP addresses, that is, matching the IP address identical to the local IP address in the at least two IP addresses, and preferentially accessing the local IP address in the at least two IP addresses, executing step 108; in response to that the at least two IP addresses are both different from the local IP address, step 105 is performed.
Step 105, prioritizing the local IP address database.
Responding to the local IP address corresponding to the SUPL domain name stored in the local IP address database, and preferentially accessing the local IP address by the terminal; the terminal accesses the local IP address successfully, and step 108 is executed; if the terminal fails to access the local IP address, step 106 is performed.
Step 106, the first IP address provided by the DNS server.
Exemplarily, in a case that the at least two IP addresses include a local IP address, the first IP address refers to an IP address other than the local IP address among the at least two IP addresses; in a case where the at least two IP addresses do not include the local IP address, the first IP address refers to any IP address of the at least two IP addresses. The terminal accesses a first IP address; the terminal successfully accesses the first IP address and performs step 107 and step 108.
Illustratively, the terminal selects a first IP address from the remaining IP addresses to access under the condition that the local IP address access fails, and executes step 107 and step 108 in response to successful access of the first IP address; wherein the remaining IP addresses include at least one IP address of the at least two IP addresses other than the local IP address.
In some embodiments, the first IP addresses may include at least two, and the terminal accesses one first IP address in case of failure to access the other first IP address.
In some embodiments, after the terminal fails to access the first IP address, the domain name resolution request may be sent to the DNS server again, and the IP address corresponding to the SUPL domain name may be requested from the DNS server again until the terminal successfully accesses the SUPL server. For example, if the terminal fails to access the first IP address, the process returns to step 103.
Step 107, updating the local IP address database.
And the terminal correspondingly updates the SUPL domain name and the successfully accessed first IP address to a local IP address database. Illustratively, the terminal updates the SUPL domain name to the locally stored IP list corresponding to the successfully accessed first IP address.
Step 108, start AGPS.
Illustratively, the terminal successfully accesses the first IP address and starts AGPS.
Or the terminal accesses the local IP address successfully and starts the AGPS.
In summary, in the AGPS positioning start method provided in this embodiment, the terminal is connected to the DNS server, and the SUPL domain name is resolved from the DNS server to obtain at least two IP addresses; and then, under the condition that the local IP address corresponding to the SUPL domain name is locally stored and the local IP address exists in at least two IP addresses, the local IP address is preferentially selected to be accessed, and the local IP address is the IP address successfully accessed by the terminal, so that the success rate of the terminal for connecting the SUPL server can be improved, the condition that the terminal needs to try to connect the SUPL server for multiple times is avoided with high probability, and the efficiency of successfully connecting the SUPL server is further improved.
Secondly, under the condition that the terminal cannot be connected to the DNS server or the condition that the SUPL domain name is failed to be analyzed, the terminal can also obtain a local IP address corresponding to the SUPL domain name from the local storage, so that the terminal has the possibility of successfully accessing the SUPL server under the condition that the terminal cannot obtain the IP address through analyzing the SUPL domain name, and the success rate of accessing the SUPL server is further improved. The terminal also updates the local IP address in time when the local IP address is unavailable so as to further ensure the availability of the local IP address.
The AGPS positioning starting method provided by the application can be applied to a computer system. Referring to fig. 2, a block diagram of a computer system provided by an exemplary embodiment of the present application is shown, the computer system including a terminal 220, a communication network 240, and a server 260.
The terminal 220 has an operating system and at least one application installed therein. The terminal supports a positioning function, which illustratively includes an AGPS positioning function. The AGPS positioning function may be triggered by the operating system; and/or the AGPS positioning function may be triggered by an application. Illustratively, the operating system may be an Android (Android) system, an apple (iOS) system, a hermonist (HermaryOS) system, or a microsoft (Windows) system. The application programs may include instant messaging application programs, news information application programs, life service application programs, financial service application programs, and the like.
The terminal illustratively supports SUPL, a standard-based protocol that allows a mobile phone user to communicate with a location server.
Illustratively, the terminal 220 may include at least one of a smart phone, a tablet computer, a smart watch, an e-book reader, an MP3(Moving Picture Experts Group Audio Layer III, motion Picture Experts compression standard Audio Layer 3) player, an MP4(Moving Picture Experts Group Audio Layer IV, motion Picture Experts compression standard Audio Layer 4) player, a laptop portable computer, a desktop computer, and a notebook computer.
A communication network 240 exists between the terminal 220 and the server 260, and the communication network 240 may be a wired network or a wireless network. Illustratively, the wired network may be a metropolitan area network, a local area network, a fiber optic network, or the like; the Wireless network may be a mobile communication network, a Wireless Fidelity (WiFi) network, or the like.
Server 260 provides background services for the running of operating systems and/or applications in terminal 220. The server 260 may include at least one of a server 260, a plurality of servers 260, a cloud computing platform, and a virtualization center.
Illustratively, the servers 260 include a DNS server 2602 and a SUPL server 2604; the terminal 220 may request resolution of the SUPL domain name from the DNS server 2602 through the mobile communication network; after the DNS server 2602 resolves the SUPL domain name to obtain an IP address, the resolved IP address is fed back to the terminal 220; the terminal 220 accesses the SUPL server 2604 through the IP address to start AGPS positioning.
The DNS server 2602 and the SUPL server 2604 are illustratively provided by a mobile operator. For example, the DNS server 2602 and the SUPL server 2604 are provided by the same or different mobile operators. The DNS server is a domain name server, and is configured to perform conversion between a domain name and an IP address corresponding to the domain name. The SUPL server 2604 is a computer device for supporting the operation of a SUPL Location Platform (SLP).
Those skilled in the art will appreciate that the number of terminals 220 in the computer system described above can be greater or fewer. For example, the number of the terminals 220 in the computer system may be only one, or several tens or hundreds, or more, and the number and the device type of the terminals 220 in the computer system are not limited in the embodiment of the present application.
Fig. 3 is a flowchart illustrating an AGPS positioning initiation method according to an exemplary embodiment of the present application, where the method may be applied to the terminal shown in fig. 1, and the method includes:
in step 310, the SUPL domain name is obtained.
Illustratively, the SUPL domain name is an identification of one or a group of SUPL servers. The terminal is provided with an SUPL domain name corresponding to the SUPL server; and in the AGPS positioning process, the terminal reads the SUPL domain name from the storage position of the SUPL domain name to obtain the IP address of the SUPL server based on the SUPL domain name resolution, and then accesses the IP address of the SUPL server to start the AGPS positioning.
Illustratively, the SUPL domain name is automatically set when the terminal accesses a network; alternatively, the SUPL domain name is autonomously set by a user.
Illustratively, an application running on the terminal requests AGPS positioning and the terminal reads the SUPL domain name from its memory. Alternatively, the operating system running on the terminal requests AGPS positioning, and the terminal reads the SUPL domain name from its own memory.
Step 320, querying a local IP address corresponding to the SUPL domain name from a local storage of the terminal; the local IP address is an IP address which is obtained from the DNS server in the historical AGPS positioning process and successfully accessed by the terminal.
An IP list is stored in a local storage of the terminal, and SUPL domain names and IP addresses are stored in the IP list in a one-to-one correspondence manner; the terminal inquires a local IP address corresponding to the SUPL domain name from a locally stored IP list.
And step 330, successfully accessing the local IP address and starting AGPS positioning.
After obtaining the local IP address, the terminal accesses the local IP address; and responding to the success of accessing the local IP address and starting the AGPS positioning.
In summary, according to the AGPS positioning start method provided in this embodiment, in the process of starting AGPS positioning, the terminal may query whether there is a local IP address corresponding to the SUPL domain name from the local storage, and directly access the local IP address when the local IP address corresponding to the SUPL domain name is queried, where the local IP address is an IP address obtained from the DNS server in the historical AGPS positioning process by the terminal, and the terminal successfully accesses the local IP address and selects to access the local IP address, so that the success rate of successfully accessing the SUPL server is high, that is, the success rate of accessing the SUPL server by the terminal once is increased, and the case of trying to connect the SUPL server many times is avoided with a high probability, thereby increasing the efficiency of successfully connecting the SUPL server. After the local IP address is successfully accessed, the SUPL domain name resolution does not need to be requested from the DNS, so that the step of acquiring the IP address by the SUPL domain name resolution is saved, the time spent by AGPS positioning is reduced, and the efficiency of successfully connecting the SUPL server is further improved.
Illustratively, there is a case where the terminal fails to access the local IP address, in which case the terminal may attempt to access an IP address corresponding to the SUPL domain name acquired from the DNS server.
Illustratively, as shown in fig. 4, if the terminal directly attempts to access the local IP address before requesting resolution of the SUPL domain name from the DNS server, the terminal may perform the following steps in case of a failure to access the local IP:
in response to a failure to access the local IP address, the SUPL domain name is resolved from the DNS server to obtain at least one IP address, step 340.
The terminal responds to the access failure of the local IP address, and sends a domain name resolution request to the DNS, wherein the domain name resolution request carries the SUPL domain name and is used for requesting the DNS to resolve the SUPL domain name so as to obtain at least one IP address; and receiving at least one IP address fed back by the DNS server.
And 350, successfully accessing a second IP address in the at least one IP address, and starting AGPS positioning.
Illustratively, the terminal randomly selects a second IP address from at least one IP address to access; and responding to the success of accessing the second IP address, and starting the AGPS positioning.
Optionally, in response to successful access to the second IP address, the terminal further updates the SUPL domain name to the local storage in correspondence with the second IP address.
Illustratively, the SUPL domain name is stored in correspondence with the IP address in a locally stored IP list; and under the condition that the terminal successfully accesses the second IP address, correspondingly updating the SUPL domain name and the second IP address into a locally stored IP list. For example, the terminal updates the local IP address corresponding to the SUPL domain name in the IP list to the second IP address.
In summary, in the AGPS positioning start method provided in this embodiment, in the starting process of the AGPS positioning start method, when the local IP address corresponding to the SUPL domain name is locally stored, the local IP address is preferentially accessed, and after the local IP address is failed to be accessed, the IP address corresponding to the SUPL domain name is obtained through resolution from the DNS server. Because the IP addresses of the SUPL servers of each operator cannot be changed frequently, the probability of successful access by adopting the local IP addresses is high, once the local IP addresses are successfully accessed, the IP addresses corresponding to the SUPL domain names do not need to be acquired from the DNS, the time spent on starting the AGPS positioning can be saved, and the efficiency of the AGPS positioning is improved.
Secondly, if the access of the local IP address fails and the IP address acquired from the DNS server is successfully accessed, the terminal also updates the IP address successfully accessed this time and the SUPL domain name to the IP list correspondingly so as to ensure the availability of the local IP address corresponding to the SUPL domain name.
There is also a case where the terminal requests the DNS server to resolve the SUPL domain name before accessing the IP address, to obtain at least two IP addresses; if there is a local IP address in at least two IP addresses, the terminal preferentially selects to access the local IP address, as shown in fig. 5, an exemplary embodiment of the AGPS positioning start method is as follows:
in step 410, a SUPL domain name is obtained.
Illustratively, the SUPL domain name is an identification of one or a group of SUPL servers. The terminal is provided with an SUPL domain name corresponding to the SUPL server; and the terminal reads the SUPL domain name in the AGPS positioning process to obtain the IP address of the SUPL server based on the SUPL domain name resolution, accesses the IP address of the SUPL server and starts the AGPS positioning.
Illustratively, the SUPL domain name is automatically set when the terminal accesses a network; alternatively, the SUPL domain name is autonomously set by a user.
Illustratively, an application running on the terminal requests AGPS positioning and the terminal reads the SUPL domain name from its memory. Alternatively, the operating system running on the terminal requests AGPS positioning, and the terminal reads the SUPL domain name from its own memory.
In step 420, the SUPL domain name is resolved from the DNS server to obtain at least two IP addresses.
A terminal sends a domain name resolution request to a DNS (domain name server), wherein the domain name resolution request carries an SUPL (super high level language) domain name; then, analyzing the SUPL domain name by a DNS server to obtain at least two IP addresses corresponding to the SUPL domain name, and feeding back the at least two SUPL domain names to the terminal; the terminal receives at least two SUPL domain names fed back by the DNS server.
Illustratively, a corresponding relation table of the SUPL domain name and the IP address is stored in the DNS server; after the terminal sends a domain name resolution request to the DNS server, the DNS server resolves the SUPL domain name based on the corresponding relation table, resolves at least two IP addresses corresponding to the SUPL domain name, and returns the at least two IP addresses to the terminal, so that the terminal can obtain the at least two IP addresses corresponding to the SUPL domain name.
Step 430, inquiring a local IP address corresponding to the SUPL domain name from a local storage of the terminal; the local IP address is the IP address that the terminal obtained from the DNS server in the historical AGPS positioning process and successfully accessed.
An IP list is stored in a local storage of the terminal, and SUPL domain names and IP addresses are stored in the IP list in a one-to-one correspondence manner; the terminal inquires a local IP address corresponding to the SUPL domain name from the locally stored IP list.
In response to the local IP address existing in the at least two IP addresses, the local IP address is preferentially accessed, step 440.
And the terminal determines that the IP address same as the local IP address exists in the at least two IP addresses, and preferentially accesses the local IP address.
Illustratively, the terminal locally stores an IP list in which the SUPL domain name and the IP address are stored in a one-to-one correspondence. After the terminal obtains the at least two IP addresses, the at least two IP addresses are respectively matched with the local IP address; and in the case that the local IP address exists in the at least two IP addresses, preferentially accessing the local IP address.
For example, the terminal traverses at least two IP addresses, and determines whether a local IP address exists in the at least two IP addresses; and in the case that the local IP address exists in at least two IP addresses, preferentially accessing the local IP address. Or the terminal matches at least two IP addresses with the local IP address in sequence; until the IP address which is the same as the local IP address is matched, the local IP address is accessed preferentially.
For example, the at least two IP addresses include three IP addresses "xx.xxx.xxx.xxx.xxx.xx", "xx.xxx.xxx.xxx.yy" and "xx.xxx.xxx.xxx.zz"; a local IP address stored in correspondence with the SUPL domain name in the locally stored IP list is "xx.xxx.xxx.yy"; the terminal is matched with the three IP addresses in sequence, when the terminal is matched with the 2 nd IP address 'XX.XXX.XXX.yy' to be the same, the terminal does not continue to be matched with the third IP address, and the terminal selects to preferentially access the local IP address 'XX.XXX.XXX.yy'.
Illustratively, the data structure of the locally stored local IP address is as follows:
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Figure BDA0003687015010000111
step 450, in response to successfully accessing the local IP address, starts AGPS positioning.
And the terminal starts AGPS positioning under the condition of successfully accessing the local IP address.
It should be noted that, the execution order of step 420 and step 430 is not limited in this application, and in this embodiment, only step 420 and step 430 are executed in sequence as an example for description; in other embodiments, step 430 may be performed first and then step 420, or step 420 and step 430 may be performed simultaneously.
In summary, in the AGPS positioning start method provided in this embodiment, the terminal is connected to the DNS server in the process of starting AGPS positioning, and requests to resolve the SUPL domain name to obtain a plurality of IP addresses corresponding to the SUPL domain name; then, under the condition that the local IP address corresponding to the SUPL domain name is locally stored by the terminal, the first IP address in the plurality of IP addresses is determined to be the same as the local IP address, the first IP address is preferentially accessed in the plurality of IP addresses, and the first IP address is preferentially accessed because the local IP address is the IP address successfully accessed by the terminal, so that the success rate of the terminal for connecting the SUPL server can be improved, the condition of trying to connect the SUPL server for a plurality of times is avoided with high probability, and the efficiency of successfully connecting the SUPL server is further improved.
If the local IP address corresponding to the SUPL domain name does not exist in the IP addresses obtained by resolving the SUPL domain name from the DNS server, the terminal may still select to preferentially access the local IP address, for example, as shown in fig. 6, on the basis of the embodiment shown in fig. 5, a step 460 is added, as follows:
step 460, in response to at least two IP addresses all being different from the local IP address, preferentially accessing the local IP address.
And the terminal determines that at least two IP addresses are different from the local IP address, and preferentially accesses the local IP address.
Illustratively, the terminal locally stores an IP list in which the SUPL domain name and the IP address are stored in a one-to-one correspondence. After the terminal obtains at least two IP addresses, the at least two IP addresses are respectively matched with the local IP address; and under the condition that at least two IP addresses are different from the local IP address, preferentially accessing the local IP address.
For example, the terminal traverses at least two IP addresses, and determines whether a local IP address exists in the at least two IP addresses; and in the case that the local IP address does not exist in the at least two IP addresses, preferentially accessing the local IP address.
For example, the at least two IP addresses include three IP addresses "yy.yyy.xx", "yy.yy.yy.yy", and "yy.yy.yyy.zz"; a local IP address stored in correspondence with the SUPL domain name in the locally stored IP list is "yy.yyy.qq"; and the terminal is sequentially matched with the three IP addresses, and when the three IP addresses are determined to be different from the local IP address, the local IP address' YY.
Illustratively, in case that the terminal has successfully accessed the local IP address with priority, step 450 is executed.
In summary, in the AGPS positioning start method provided in this embodiment, there is no IP address in the plurality of IP addresses obtained by resolving the SUPL domain name that is the same as the local IP address, and then the terminal preferentially selects the local IP address to access.
In the embodiments shown in fig. 5 and fig. 6, in the case that the terminal fails to access the local IP address, at this time, the terminal selects an IP address from the non-local IP addresses provided by the DNS server for access. Taking the embodiment shown in fig. 6 as an example, step 470 and step 480 are added, as shown in fig. 7:
in response to a failure to access the local IP address, a first IP address of the at least two IP addresses is accessed, step 470.
Illustratively, in the case that the at least two IP addresses include a local IP address, the first IP address refers to an IP address other than the local IP address among the at least two IP addresses; in a case where the at least two IP addresses do not include the local IP address, the first IP address refers to any IP address of the at least two IP addresses.
And the terminal selects a first IP address from at least two IP addresses to access under the condition that the local IP address access fails.
Step 480, in response to the successful access of the first IP address, starting AGPS positioning.
Optionally, the terminal further updates the SUPL domain name and the first IP address correspondence to a local storage of the terminal in response to successful access to the first IP address. Illustratively, in case of successful access to the first IP address, the terminal updates the SUPL domain name and the first IP address correspondence to an IP list stored locally by the terminal. It should be noted that the terminal may sequentially execute the step of starting the AGPS positioning and updating the IP list in response to the successful access of the first IP address, or may simultaneously execute the step of starting the AGPS positioning and updating the IP list in response to the successful access of the first IP address.
Illustratively, the first IP addresses include at least two, and in the case that one first IP address fails to access, another first IP address is selected to access until the terminal successfully accesses the SUPL server, and the first IP address which is successfully accessed and the SUPL domain name are updated to a locally stored IP list in correspondence with each other.
In some embodiments, in case that the terminal fails to access both the local IP address and the first IP address, the terminal requests resolution of the SUPL domain name from the DNS server again, and then performs steps 440 to 470 again.
In summary, in the AGPS positioning start method provided in this embodiment, when the local IP address is unavailable, the terminal selects an access from the IP addresses obtained by resolving the SUPL domain name, and after successfully accessing one IP address, updates the SUPL domain name corresponding to the successfully accessed IP address into the locally stored IP list, so as to provide an available local IP address for next APGS positioning.
In the foregoing embodiments, it is assumed that the terminal locally stores a local IP address corresponding to the SUPL domain name, and there is a case where the local IP address does not exist in the terminal local storage, as shown in fig. 8, in this case, the implementation steps of the AGPS positioning start method are as follows:
in step 510, the SUPL domain name is obtained.
Illustratively, in the process of AGPS positioning, the terminal reads the SUPL domain name from its own memory to obtain the IP address of the SUPL server based on SUPL domain name resolution, and then accesses the IP address of the SUPL server to start AGPS positioning.
In step 520, the SUPL domain name is resolved from the DNS server to obtain at least one IP address.
Exemplarily, the terminal sends a domain name resolution request to the DNS server, where the domain name resolution request carries an SUPL domain name; then, analyzing the SUPL domain name by a DNS server, obtaining at least two IP addresses corresponding to the SUPL domain name, and feeding back the at least two SUPL domain names to the terminal; the terminal receives at least two SUPL domain names fed back by the DNS server.
Optionally, in response to the local IP address not being present in the local storage of the terminal, the terminal resolves the SUPL domain name from the DNS server to obtain at least one IP address.
Illustratively, the terminal queries a local IP address corresponding to the SUPL domain name from a local storage; under the condition that the local IP address corresponding to the SUPL domain name does not exist in the local storage, the SUPL domain name is analyzed from the DNS to obtain at least one IP address; selecting to access a second IP address of the at least one IP address.
Optionally, the terminal resolves the SUPL domain name from the DNS server to obtain at least one IP address; and responding to the condition that the local IP address does not exist in the local storage of the terminal, and selecting to access a second IP address in the at least one IP address.
Illustratively, the terminal resolves the SUPL domain name from the DNS server to obtain at least one IP address; then, a local IP address corresponding to the SUPL domain name is inquired from a local storage; and under the condition that the local IP address corresponding to the SUPL domain name does not exist in the local storage, selecting to access a second IP address in the at least one IP address.
Illustratively, the terminal accesses from the at least one IP address randomly from the second IP address.
Step 530, successfully accessing a second IP address in the at least one IP address, and starting AGPS positioning.
The terminal starts AGPS positioning under the condition that the terminal is successfully accessed to the second IP address; and storing the successfully accessed second IP address and the SUPL domain name in a local storage correspondingly.
In summary, in the AGPS positioning start method provided in this embodiment, when the local IP address does not exist in the local storage, the terminal selects an access from the IP addresses obtained by resolving the SUPL domain name, and after successfully accessing one IP address, updates the SUPL domain name corresponding to the successfully accessed IP address to the locally stored IP list, so as to provide an available local IP address for next APGS positioning.
In some embodiments, the DNS server resolves the SUPL domain name to obtain an IP address, also referred to as a third IP address. And the terminal receives the third IP address fed back by the DNS and matches the third IP address with the local IP address.
Under the condition that the third IP address is the same as the local IP address, accessing the third IP address; starting AGPS positioning under the condition that the third IP address is successfully accessed; and when the third IP address fails to be accessed, the IP address corresponding to the SUPL domain name is acquired from the DNS again.
Accessing the local IP address under the condition that the third IP address is different from the local IP address; starting AGPS positioning under the condition of successful access to the local IP address; and accessing the third IP address under the condition that the local IP address is failed to be accessed. Starting AGPS positioning under the condition that the third IP address is accessed successfully; and when the third IP address fails to be accessed, the IP address corresponding to the SUPL domain name is acquired from the DNS again.
In some embodiments, when the DNS server feeds back at least two IP addresses to the terminal, each IP address is also marked with the current utilization rate; and under the condition that the terminal fails to access the local IP address, the terminal can select the first IP address to access according to the sequence of the current utilization rate from low to high. Or, the terminal may select the second IP address to access according to the order of the current usage rate from low to high when the local IP address does not exist in the local storage. For example, if the usage rate of the second IP address 1 is 0.1 and the usage rate of the second IP address 2 is 0.6, the terminal selects to access the second IP address 1, because there are many user terminals accessing the IP addresses with high usage rate, which may cause access difficulty, and thus the success rate and efficiency of terminal access are improved.
In summary, in the AGPS positioning start method provided in this embodiment, when the SUPL domain name is analyzed to obtain an IP address, the local IP address is still preferably selected for access, so as to ensure the probability of successful access to the SUPL server.
It should be noted that, in the above embodiment, the execution sequence of the two steps of acquiring the IP address corresponding to the SUPL domain name from the DNS server and acquiring the local IP address corresponding to the SUPL domain name from the terminal local storage is not limited, and may be executed sequentially or simultaneously.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Fig. 9 shows a block diagram of an AGPS positioning starting apparatus according to an exemplary embodiment of the present application. The AGPS positioning initiating means may be implemented as all or part of the terminal by software, hardware or a combination of both. The device includes:
an obtaining module 610, configured to obtain a SUPL domain name;
a query module 620, configured to query, from a local storage of the terminal, a local IP address corresponding to the SUPL domain name, where the local IP address is an IP address that is obtained from a DNS server and successfully accessed in a historical AGPS positioning process of the terminal;
an access module 630, configured to access the local IP address successfully, and start AGPS positioning.
In some embodiments, the obtaining module 610 is configured to resolve the SUPL domain name from the DNS server to obtain at least two IP addresses;
an accessing module 630, configured to preferentially access the local IP address in response to the local IP address existing in the at least two IP addresses;
an accessing module 630, configured to start AGPS positioning in response to successful accessing of the local IP address.
In some embodiments, access module 630 is configured to:
matching the at least two IP addresses with the local IP address in sequence;
and preferentially accessing the local IP address until the IP address which is the same as the local IP address is matched.
In some embodiments, the obtaining module 610 is configured to resolve the SUPL domain name from the DNS server to obtain at least two IP addresses;
an accessing module 630, configured to preferentially access the local IP address in response to that the at least two IP addresses are both different from the local IP address;
an accessing module 630, configured to start AGPS positioning in response to successful accessing of the local IP address.
In some embodiments, access module 630 is configured to:
accessing a first IP address of the at least two IP addresses in response to a failure to access the local IP address;
and responding to the successful access of the first IP address, and starting AGPS positioning.
In some embodiments, the apparatus comprises: an update module 640;
an updating module 640, configured to update the SUPL domain name and the first IP address to a local storage of the terminal in response to successful access of the first IP address.
In some embodiments, the obtaining module 610 is configured to, in response to failure to access the local IP address, resolve the SUPL domain name from the DNS server to obtain at least one IP address;
the access module 630 is configured to access a second IP address of the at least one IP address successfully, and start AGPS positioning.
In some embodiments, the obtaining module 610 is configured to, in response to the local IP address not existing in the local storage of the terminal, resolve the SUPL domain name from the DNS server to obtain at least one IP address;
an accessing module 630, configured to access a second IP address of the at least one IP address successfully, and start AGPS positioning.
In some embodiments, the apparatus comprises: an update module 640;
an updating module 640, configured to update the SUPL domain name and the second IP address to a local storage of the terminal in response to successful access to the second IP address.
In summary, in the AGPS positioning starting apparatus provided in this embodiment, in the process of starting AGPS positioning, it may be queried whether there is a local IP address corresponding to the SUPL domain name in the local storage, and in the case of querying the local IP address corresponding to the SUPL domain name, the local IP address is directly accessed, where the local IP address is an IP address obtained from the DNS server in the historical AGPS positioning process by the terminal, and the terminal successfully accesses the local IP address and selects to access the local IP address, so that the success rate of successfully accessing the SUPL server is high, that is, the success rate of accessing the SUPL server by the terminal once is increased, the case of trying to connect the SUPL server many times is avoided with a high probability, and the efficiency of successfully connecting the SUPL server is further increased. After the local IP address is successfully accessed, the SUPL domain name resolution does not need to be requested from the DNS, so that the step of acquiring the IP address by the SUPL domain name resolution is saved, the time spent by AGPS positioning is reduced, and the efficiency of successfully connecting the SUPL server is further improved.
It should be noted that: in the AGPS positioning start device provided in the above embodiment, when the AGPS positioning start method is executed, only the division of the above function modules is used for illustration, and in practical applications, the function distribution may be completed by different function modules according to needs, that is, the internal structure of the device is divided into different function modules to complete all or part of the above described functions. In addition, the AGPS positioning start device and the AGPS positioning start method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
Fig. 10 shows a schematic structural diagram of a computer device provided in an exemplary embodiment of the present application. The computer device may be a terminal performing the AGPS positioning initiation method as provided herein. Specifically, the method comprises the following steps:
the computer apparatus 700 includes a Central Processing Unit (CPU) 701, a system Memory 704 including a Random Access Memory (RAM) 702 and a Read Only Memory (ROM) 703, and a system bus 705 connecting the system Memory 704 and the Central Processing Unit 701. The computer device 700 also includes a basic Input/Output System (I/O) 706 for facilitating information transfer between devices within the computer, and a mass storage device 707 for storing an operating System 713, application programs 714, and other program modules 715.
The basic input/output system 706 includes a display 708 for displaying information and an input device 709, such as a mouse, keyboard, etc., for a user to input information. Wherein the display 708 and the input device 709 are connected to the central processing unit 701 through an input output controller 710 connected to the system bus 705. The basic input/output system 706 may also include an input/output controller 710 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input-output controller 710 may also provide output to a display screen, a printer, or other type of output device.
The mass storage device 707 is connected to the central processing unit 701 through a mass storage controller (not shown) connected to the system bus 705. The mass storage device 707 and its associated computer-readable media provide non-volatile storage for the computer device 700. That is, the mass storage device 707 may include a computer-readable medium (not shown) such as a hard disk or Compact Disc Read Only Memory (CD-ROM) drive.
Computer-readable media may include computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), flash Memory or other Solid State Memory technology, CD-ROM, Digital Versatile Disks (DVD), or Solid State Drives (SSD), other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage, or other magnetic storage devices. The Random Access Memory may include a resistive Random Access Memory (ReRAM) and a Dynamic Random Access Memory (DRAM). Of course, those skilled in the art will appreciate that computer storage media is not limited to the foregoing. The system memory 704 and mass storage device 707 described above may collectively be referred to as memory.
According to various embodiments of the present application, the computer device 700 may also operate as a remote computer connected to a network through a network, such as the Internet. That is, the computer device 700 may be connected to the network 712 through the network interface unit 711 connected to the system bus 705, or may be connected to other types of networks or remote computer systems (not shown) using the network interface unit 711.
The memory further includes one or more programs, and the one or more programs are stored in the memory and configured to be executed by the CPU to implement the AGPS positioning start method as described above.
The embodiment of the present application further provides a computer-readable storage medium, where at least one instruction is stored, and the at least one instruction is loaded and executed by a processor to implement the AGPS positioning start method according to the above embodiments.
Optionally, the computer-readable storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), Solid State Drive (SSD), or optical disc, etc. The Random Access Memory may include a resistive Random Access Memory (ReRAM) and a Dynamic Random Access Memory (DRAM).
Embodiments of the present application also provide a computer program product (or computer program) comprising computer instructions stored in a computer-readable storage medium; the processor of the computer device reads the computer instructions from the computer readable storage medium, and executes the computer instructions to cause the computer device to execute the AGPS positioning start method provided in the above embodiments.
According to another aspect of the present application, a chip is provided, where the chip includes programmable logic circuits and/or program instructions, and when the chip runs, the chip is configured to implement the AGPS positioning start method according to the above embodiments.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the implementation of the present application and is not intended to limit the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (13)

1. An AGPS positioning start method, wherein the method is executed by a terminal, and the method comprises:
acquiring a Secure User Plane Location (SUPL) domain name;
inquiring a local Internet Protocol (IP) address corresponding to the SUPL domain name from a local storage of the terminal; the local IP address is an IP address which is obtained from a Domain Name System (DNS) server and successfully accessed in the historical AGPS positioning process of the terminal;
and successfully accessing the local IP address, and starting AGPS positioning.
2. The method of claim 1, wherein successfully accessing the local IP address, prior to initiating AGPS positioning, comprises:
resolving the SUPL domain name from the DNS server to obtain at least two IP addresses;
the successfully accessing the local IP address and starting AGPS positioning comprises the following steps:
in response to the local IP address existing in the at least two IP addresses, preferentially accessing the local IP address;
and responding to the successful access of the local IP address, and starting AGPS positioning.
3. The method of claim 2, wherein the prioritizing access to the local IP address in response to the local IP address being present in the at least two IP addresses comprises:
matching the at least two IP addresses with the local IP address in sequence;
and preferentially accessing the local IP address until the IP address which is the same as the local IP address is matched.
4. The method of claim 1, wherein successfully accessing the local IP address, prior to initiating AGPS positioning, comprises:
resolving the SUPL domain name from the DNS server to obtain at least two IP addresses;
the successfully accessing the local IP address and starting AGPS positioning comprises the following steps:
in response to the at least two IP addresses both being different from the local IP address, preferentially accessing the local IP address;
and responding to the successful access of the local IP address, and starting AGPS positioning.
5. The method of any of claims 2 to 4, further comprising:
accessing a first IP address of the at least two IP addresses in response to a failure to access the local IP address;
and responding to the successful access of the first IP address, and starting AGPS positioning.
6. The method of claim 5, further comprising:
and in response to the successful access of the first IP address, correspondingly updating the SUPL domain name and the first IP address to a local storage of the terminal.
7. The method of claim 1, further comprising:
resolving the SUPL domain name from the DNS server to obtain at least one IP address in response to failure to access the local IP address;
and successfully accessing a second IP address in the at least one IP address, and starting AGPS positioning.
8. The method of claim 1, further comprising:
resolving the SUPL domain name from the DNS server in response to the local IP address not being present in a local storage of the terminal, obtaining at least one IP address;
and successfully accessing a second IP address in the at least one IP address, and starting AGPS positioning.
9. The method of claim 7 or 8, further comprising:
and in response to the successful access of the second IP address, correspondingly updating the SUPL domain name and the second IP address to a local storage of the terminal.
10. An AGPS positioning initiation device, the device comprising:
an acquisition module for acquiring the SUPL domain name;
the query module is used for querying a local IP address corresponding to the SUPL domain name from a local storage of the terminal, wherein the local IP address is an IP address which is obtained from a DNS server and successfully accessed in the historical AGPS positioning process of the terminal;
and the access module is used for successfully accessing the local IP address and starting AGPS positioning.
11. A terminal, characterized in that the terminal comprises a processor, a memory connected to the processor, and program instructions stored in the memory, and when the processor executes the program instructions, the AGPS positioning initiation method according to any one of claims 1 to 9 is implemented.
12. A computer readable storage medium, wherein program instructions are stored in the computer readable storage medium, and when executed by a processor, implement the AGPS positioning initiation method according to any one of claims 1 to 9.
13. A computer program product, characterized in that the computer program product comprises computer instructions, the computer instructions being stored in a computer readable storage medium; a processor of a computer device reads the computer instructions from the computer readable storage medium, the processor executing the computer instructions to cause the computer device to perform the AGPS positioning initiation method according to any of claims 1 to 9.
CN202210663586.4A 2022-06-09 2022-06-09 AGPS positioning starting method, device, equipment, medium and program product Active CN115102923B (en)

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