CN105517142B - WLAN positioning method, terminal and WLAN access server - Google Patents
WLAN positioning method, terminal and WLAN access server Download PDFInfo
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- CN105517142B CN105517142B CN201410495260.0A CN201410495260A CN105517142B CN 105517142 B CN105517142 B CN 105517142B CN 201410495260 A CN201410495260 A CN 201410495260A CN 105517142 B CN105517142 B CN 105517142B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
The invention provides a WLAN positioning method, a terminal and a WLAN access server, which are applied to the terminal, wherein the positioning method comprises the following steps: acquiring a position transmitting frame including access position information transmitted by a WLAN access server; the access location information is saved. The WLAN positioning method provided by the invention can realize the function of sending and acquiring the position information by the WLAN access server and the terminal in a protocol frame expanding mode under the condition of no network, thereby achieving the function of acquiring the position information directly by the WLAN access server, the WLAN access server can also receive the position information update from the terminal, a user can directly carry out quick positioning by the WLAN without networking by the method, and when the position information of the WLAN access server needs to be updated, the user can also quickly update the position information of the WLAN access server by the method.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a WLAN (wireless local area network) positioning method, a terminal and a WLAN access server.
Background
The current WLAN positioning is based on a network, and requires a terminal to download from the network or obtain specific location information corresponding to a MAC (media access control) address of a WLAN access server from a server through the network in real time, but if a user does not open the network or the network is unavailable, the user cannot perform positioning through the WLAN without connecting to the server required for WLAN positioning. That is, WLAN positioning cannot be used in the event that the network is unavailable.
Disclosure of Invention
In order to solve the technical problem, the invention discloses a WLAN positioning method, a terminal and a WLAN access server, which solve the problem of completing WLAN positioning under the condition of no network.
According to an aspect of the present invention, there is provided a WLAN positioning method applied to a terminal, the WLAN positioning method including: acquiring a position transmitting frame including access position information transmitted by a WLAN access server; the received access location information is saved.
Optionally, in the step of transmitting the location transmission frame containing the access location information by the WLAN access server, the location transmission frame is periodically transmitted in a broadcast form by the WLAN access server.
Optionally, the WLAN positioning method further includes: and transmitting a location request frame not including the location information of the terminal to the WLAN access server, wherein the location transmission frame including the access location information transmitted by the WLAN access server is transmitted in response to the location request frame.
Optionally, the WLAN positioning method further includes: and sending a position request frame comprising the terminal position information to the WLAN access server, so that the WLAN access server updates the stored terminal position information according to the position request frame.
Optionally, the sent location request frame is recorded in a Subtype in the message, and the location request frame includes a sent source address corresponding to the MAC address of the terminal and a sent destination address corresponding to the MAC address of the WLAN access server.
Alternatively, when the destination addresses of the transmitted location request frames are all filled with 1, it indicates that the location request frame is a broadcast frame.
According to another aspect of the present invention, there is also provided a terminal, including:
the frame receiving module is used for acquiring a position transmitting frame which is transmitted by the WLAN access server and contains access position information;
a storage module for storing the received access location information
Optionally, the frame receiving module acquires a location transmission frame containing access location information periodically transmitted by the WLAN access server in a broadcast manner.
Optionally, the terminal further includes a first frame sending module, configured to send a location request frame that does not include location information of the terminal to the WLAN access server, where the location sending frame that includes the access location information and is received by the frame receiving module is sent by the WLAN access server in response to the location request frame.
Optionally, the terminal further includes a second frame sending module, configured to send a location request frame including the location information of the terminal to the WLAN access server, so that the WLAN access server updates the stored location information of the terminal according to the location request frame.
Optionally, the terminal further includes a frame parsing module, configured to parse the received location transmitting frame, and extract the access location information in the location transmitting frame.
According to another aspect of the present invention, there is also provided a WLAN positioning method applied to a WLAN server, the method including:
and transmitting a location transmission frame including the access location information to the terminal, so that the terminal stores the access location information.
Alternatively, in the step of transmitting the location transmission frame including the access location information to the terminal, the location transmission frame including the access location information is periodically transmitted to the terminal in a broadcast form.
Optionally, the WLAN positioning method further includes:
and receiving a position request frame sent by the terminal, and sending a position sending frame containing access position information to the terminal according to the position request frame when the position request frame does not contain the terminal position information.
Optionally, the WLAN positioning method further includes receiving a location request frame sent by the terminal, and updating the stored terminal location information according to the location request frame when the location request frame includes the terminal location information.
Optionally, the WLAN positioning method further includes parsing the received location request frame including the terminal location information, and extracting the terminal location information in the location request frame.
In accordance with another aspect of the present invention, there is provided a WLAN access server, including:
and the frame sending module is used for sending the position sending frame comprising the access position information to the terminal so that the terminal stores the access position information.
Alternatively, the frame transmitting module periodically transmits the location transmission frame including the access location information to the terminal in a broadcast form when transmitting the location transmission frame to the terminal.
Optionally, the WLAN access server further comprises: the frame receiving module is used for receiving a position request frame sent by a terminal; the frame analysis module is used for analyzing the position request frame and judging whether the position request frame comprises terminal position information or not; the storage module is used for storing and updating the terminal position information of the terminal according to the position request frame when the frame analysis module judges that the position request frame comprises the terminal position information; when the frame analysis module judges that the position request frame does not include the terminal position information, the frame sending module sends a position sending frame containing the access position information to the terminal according to the position request frame.
The embodiment of the invention has the beneficial effects that: a WLAN positioning method is applied to a terminal and comprises the steps of obtaining a position sending frame which is sent by a WLAN access server and comprises access position information and storing the access position information, and the terminal can directly position through the surrounding WLAN access servers under the condition that a network is unavailable, so that the process of large-data-volume retrieval is omitted, and the convenience and the real-time performance of positioning are improved.
Drawings
Fig. 1 is a flowchart illustrating a terminal-side WLAN positioning method according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a terminal-side WLAN positioning method according to another embodiment of the present invention;
fig. 3 shows a schematic block diagram of a terminal in an embodiment of the invention;
fig. 4 shows a schematic block diagram of a terminal in another embodiment of the invention;
fig. 5 is a flowchart illustrating a WLAN access server side WLAN positioning method according to another embodiment of the present invention;
fig. 6 is a flowchart illustrating the operation of updating the terminal location information at the WLAN access server side according to the two embodiments of the present invention;
fig. 7 shows a schematic block diagram of a WLAN access server in another embodiment of the invention;
fig. 8 is a schematic block diagram of a WLAN access server updating location information in an embodiment of the present invention;
fig. 9 is a flowchart illustrating a process of passively acquiring access location information by a terminal according to an embodiment of the present invention;
fig. 10 is a flowchart illustrating a process of actively acquiring access location information by a terminal according to an embodiment of the present invention;
figure 11 shows a flow chart of the operation of a terminal to update location information to a WLAN access server; and
fig. 12 shows a frame management format in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the embodiment of the present invention, the terminal is a general client in the WLAN, and may be a computer equipped with a wireless network card, or may be a smart phone supporting the WLAN technology, and the terminal may be mobile or fixed, and is the most basic constituent unit of the WLAN. The terminal location information is location information of the client, and may change with the change of the terminal location.
The WLAN access server represents an access point, the access position information is the position information of the WLAN access server, and the mode for realizing WLAN positioning is that a terminal acquires an MAC (media access control) address and the access position information of the WLAN server, wherein the MAC address and the access position information are in one-to-one correspondence.
The present invention provides a WLAN positioning method, as shown in fig. 1, which is a working flow chart of a WLAN positioning method at a terminal side in an embodiment of the present invention, and the WLAN positioning method is applied to a terminal, and includes:
acquiring a position transmitting frame including access position information transmitted by a WLAN access server;
and storing the access position information.
By adopting the WLAN positioning method provided by the embodiment of the invention, the WLAN access server can directly send the access position information to the terminal, so that the terminal can acquire the access position information of the WLAN access server under the condition of no network, and the WLAN can be quickly positioned.
Specifically, those skilled in the art can understand that after receiving the position transmission frame, the terminal first needs to analyze the position transmission frame and then take out the access position information, and finally stores the access position information.
In the above-mentioned WLAN positioning method, optionally, the received position transmission frame is periodically transmitted by the WLAN access server in a broadcast manner, and all terminals may receive the position transmission frame.
The present invention further provides a WLAN positioning method of another embodiment, which is applied to a terminal, and as shown in fig. 2, the WLAN positioning method includes:
sending a position request frame to a WLAN access server, wherein the position request frame does not include terminal position information;
acquiring a position sending frame which is sent by the WLAN access server and comprises access position information according to the position request frame;
analyzing the position sending frame;
and storing the access position information.
By the WLAN positioning method of this embodiment, the terminal may actively send a location request frame to the WLAN access server to obtain the access location information of the WLAN access server.
In the WLAN positioning methods of the two embodiments, the method further includes:
and sending a position request frame to the WLAN access server, wherein the position request frame comprises the terminal position information, so that the WLAN server updates the stored terminal position information according to the position request frame.
Through the above steps, the terminal can inject specific location information into the WLAN access server.
Therefore, the WLAN positioning method according to the embodiment of the present invention provides a communication mechanism between the WLAN access server and the terminal, so that the terminal can obtain the access location information of the WLAN access server, and the WLAN access server can update the location information through the terminal.
Specifically, the location request frame of the terminal includes the MAC address of the terminal, and if the location request frame is broadcast, all the WLAN access servers around can receive the location request frame; if a location request frame is to be sent to a WLAN access server alone, the MAC address of the WLAN access server to be requested should also be included in the frame. If the position request frame carries the terminal position information, the request frame is a position updating request.
The subtype value 0110 of the management frame is used as the position request frame type of the terminal, the MAC address to be sent to the WLAN access server is filled in the destination address, the MAC address of the terminal is filled in the source address, and if all bits of the destination address are filled with 1, the request frame is a broadcast frame.
According to another aspect of the present invention, there is also provided a terminal, as shown in fig. 3, including:
the frame receiving module is used for acquiring a position sending frame including access position information of the WLAN access server;
and the storage module is used for storing the access position information.
Specifically, as can be understood by those skilled in the art, after the frame receiving module receives the position sending frame, the frame analyzing module further analyzes the position sending frame, and then takes out and accesses the position information, and the terminal can acquire the access position information to perform WLAN positioning without a network.
The present invention also provides a terminal of another embodiment, as shown in fig. 4, the terminal includes:
a first frame sending module, configured to send a location request frame to a WLAN access server, where the sent location request frame does not include terminal location information;
the frame receiving module is used for acquiring a position sending frame sent by the WLAN access server, and the position sending frame comprises access position information;
the frame analysis module is used for analyzing the received position sending frame;
and the storage module is used for storing the access position information analyzed by the frame analysis module.
The terminal of this embodiment may actively send a location request frame to the WLAN access server to obtain access location information of the WLAN access server.
In the terminals in the two embodiments, the terminal may further include a second frame sending module, configured to send a location request frame, where the location request frame includes terminal location information, so that the WLAN access server updates the stored terminal location information according to the location request frame.
The terminal can inject specific location information into the WLAN access server using the second frame transmission module.
The invention also provides a WLAN positioning method, which is applied to the WLAN access server and comprises the following steps:
and sending a position sending frame to the terminal, wherein the position sending frame comprises the access position information, so that the terminal can directly acquire the access position information of the WLAN access server even under the condition of no network, and the WLAN is positioned.
In the above WLAN positioning method, the transmitted position transmission frame is optionally periodically transmitted in a broadcast form, and all terminals can receive it.
The present invention further provides a WLAN positioning method of another embodiment, which is applied to a WLAN access server, as shown in fig. 5, the WLAN positioning method includes:
receiving a position request frame from a terminal, wherein the position request frame does not include terminal position information;
and sending a position sending frame to the terminal according to the position request frame, wherein the position sending frame comprises access position information.
Through the WLAN positioning method of the embodiment, the WLAN access server can send the access position information to the terminal according to the active request of the terminal.
As shown in fig. 6, a flowchart of a work flow for updating terminal location information at a WLAN access server side is shown, in the WLAN positioning methods of the two embodiments, the methods may further include:
receiving a position request frame from a terminal, wherein the position request frame comprises terminal position information;
and saving the terminal position information.
Through the step, the WLAN access server obtains the specific position information of the terminal according to the position request frame sent by the terminal, so as to update and store the position information.
Specifically, as will be understood by those skilled in the art, after receiving the location request frame, the WLAN access server first parses the location request frame, extracts the terminal location information, stores and updates the terminal location information, and in this way, the WLAN access server can directly update the terminal location information without a network.
Specifically, the location transmission frame of the WLAN access server includes the MAC address of the WLAN access server and corresponding access location information, and if the location transmission frame is broadcast, all surrounding terminals can receive the location transmission frame; if a location transmission frame is intended to be transmitted to a certain terminal alone, the MAC address of the terminal to be requested should also be included in the frame.
The subtype value 0111 of the management frame is used as the position sending frame type of the WLAN access server, the MAC address to be sent to the terminal is filled in the destination address, the MAC address of the WLAN access server is filled in the source address, the access position information is added in the frame body, if all bits of the destination address are filled with 1, the request frame is a broadcast frame, and all terminals can receive the position sending frame of the WLAN access server at this time.
According to another aspect of the present invention, there is also provided a WLAN access server, including:
and the frame sending module is used for sending the position sending frame to the terminal, wherein the position sending frame comprises the access position information, so that the terminal can acquire the access position information to position the WLAN.
The present invention further provides a WLAN access server according to another embodiment, as shown in fig. 7, including:
the frame receiving module is used for receiving a position request frame from a terminal, and the position request frame does not include terminal position information;
and the frame sending module is used for sending the position sending frame comprising the access position information.
In the WLAN access server of the above two embodiments, as shown in fig. 8, further includes:
the frame receiving module is used for receiving a position request frame from a terminal, and the position request frame comprises terminal position information;
the frame analysis module is used for analyzing the position request frame which is received by the frame receiving module and comprises the terminal position information and extracting the terminal position information;
and the storage module is used for storing the terminal position information extracted by the frame analysis module and updating the terminal position information.
Specifically, with the positioning method according to the embodiment of the present invention, as shown in fig. 9, the step of passively acquiring the location information by the terminal includes:
the terminal monitors an air interface wireless message and waits for the arrival of a position sending frame broadcasted by the WLAN access server;
the WLAN access server broadcasts the position transmitting frame, so that all terminals can monitor the position transmitting frame, and the position transmitting frame comprises access position information;
the terminal monitors a position sending frame;
the terminal extracts the access position information through a frame analysis process;
the terminal stores the access location information.
With the positioning method of the embodiment of the present invention, as shown in fig. 10, the step of actively acquiring the position information by the terminal includes:
the terminal sends a position request frame to the WLAN access server, wherein the position request frame does not include terminal position information;
the WLAN access server receives the position request frame;
the WLAN access server carries out frame analysis on the position request frame to analyze the MAC address of the terminal;
the WLAN access server sends a position sending frame to the corresponding terminal according to the analyzed MAC address, wherein the position sending frame comprises access position information;
the terminal receives the position sending frame;
the terminal extracts the access position information through a frame analysis process;
the terminal stores the access location information.
By adopting the method for acquiring the access position information of the WLAN access server by the terminal, the terminal can directly acquire the access position information of the WLAN access server without networking.
With the positioning method of the embodiment of the present invention, as shown in fig. 11, the step of the terminal updating the location information of the WLAN access server includes:
the terminal sends a position request frame to the WLAN access server, wherein the position request frame comprises terminal position information;
the WLAN access server receives the position request frame;
the WLAN access server extracts the terminal position information through a frame analysis module;
and the WLAN access server updates and stores the position information.
By adopting the method for updating the position of the WLAN access server by the terminal, the WLAN access server can quickly update the position information under the condition of no network.
In summary, the present invention provides a WLAN positioning method, a terminal and a WLAN access server, which implement the function of sending and acquiring location information by the WLAN access server and the terminal by extending a protocol frame, so as to achieve the effect of directly acquiring access location information by the WLAN access server, and the WLAN access server can also receive location information update from the terminal. By the method, networking is not needed, positioning can be directly carried out through the WLAN, and when the position information of the WLAN access server needs to be updated, the position information can be quickly updated through the method.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. A WLAN positioning method is applied to a terminal, and is characterized in that the WLAN positioning method comprises the following steps:
acquiring a location transmission frame including access location information transmitted by a WLAN access server, including: if the WLAN access server sends a position sending frame including access position information to a terminal, the position sending frame is sent to the terminal periodically in a broadcasting mode; if the terminal sends a location request frame which does not include the location information of the terminal to the WLAN access server, the location sending frame which is sent by the WLAN access server and contains the access location information is sent in response to the location request frame;
and storing the access position information.
2. The WLAN positioning method of claim 1, further comprising:
and sending a position request frame comprising terminal position information to the WLAN access server, so that the WLAN access server updates the stored terminal position information according to the position request frame.
3. The WLAN positioning method according to claim 1 or claim 2, wherein the location request frame is recorded in a Subtype in a message, and the location request frame includes a transmitted source address corresponding to the MAC address of the terminal and a transmitted destination address corresponding to the MAC address of the WLAN access server.
4. The WLAN positioning method according to claim 3, characterized in that the fact that the location request frame is a broadcast frame when all bits of the destination address of the location request frame are filled with 1 indicates that the location request frame is a broadcast frame.
5. A terminal, comprising:
the frame receiving module is used for acquiring a position transmitting frame which is transmitted by the WLAN access server and contains access position information; the frame receiving module is specifically configured to acquire the location transmission frame containing access location information, which is periodically transmitted by the WLAN access server in a broadcast manner;
a first frame sending module, configured to send a location request frame that does not include terminal location information to the WLAN access server; the frame receiving module is further specifically configured to receive a location transmission frame containing access location information, which is transmitted by the WLAN access server in response to the location request frame;
and the storage module is used for storing the access position information.
6. The terminal of claim 5, further comprising:
and the second frame sending module is used for sending a position request frame comprising terminal position information to the WLAN access server, so that the WLAN access server updates the stored terminal position information according to the position request frame.
7. A WLAN positioning method is applied to a WLAN access server, and is characterized in that the WLAN positioning method comprises the following steps:
transmitting a position transmission frame including access position information to a terminal, so that the terminal stores the access position information;
and receiving a position request frame sent by the terminal, and sending a position sending frame containing access position information to the terminal according to the position request frame when the position request frame does not contain terminal position information.
8. The WLAN positioning method according to claim 7, wherein in the step of transmitting the position transmission frame including the access location information to the terminal, the position transmission frame including the access location information is periodically transmitted to the terminal in a broadcast form.
9. The WLAN positioning method of claim 7, further comprising:
and receiving a position request frame sent by the terminal, and updating the stored terminal position information according to the position request frame when the position request frame comprises the terminal position information.
10. A WLAN access server, comprising:
a frame sending module, configured to send a position sending frame including access position information to a terminal, so that the terminal stores the access position information; when the frame sending module sends a position sending frame including access position information to a terminal, the frame sending module sends the position sending frame to the terminal periodically in a broadcasting mode;
a frame receiving module, configured to receive a location request frame sent by the terminal;
the frame analysis module is used for analyzing the position request frame and judging whether the position request frame comprises terminal position information or not;
the storage module is used for storing and updating the terminal position information of the terminal according to the position request frame when the frame analysis module judges that the position request frame comprises the terminal position information;
when the frame analysis module judges that the position request frame does not include the terminal position information, the frame sending module sends a position sending frame containing the access position information to the terminal according to the position request frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410495260.0A CN105517142B (en) | 2014-09-24 | 2014-09-24 | WLAN positioning method, terminal and WLAN access server |
| PCT/CN2014/092568 WO2015131581A1 (en) | 2014-09-24 | 2014-11-28 | Wlan positioning method, terminal and wlan access server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410495260.0A CN105517142B (en) | 2014-09-24 | 2014-09-24 | WLAN positioning method, terminal and WLAN access server |
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| CN105517142A CN105517142A (en) | 2016-04-20 |
| CN105517142B true CN105517142B (en) | 2020-09-15 |
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| WO (1) | WO2015131581A1 (en) |
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| CN106101998A (en) * | 2016-05-26 | 2016-11-09 | 努比亚技术有限公司 | A kind of terminal and the method opening terminal wireless fidelity WIFI function |
| CN108474858A (en) * | 2016-11-07 | 2018-08-31 | 华为技术有限公司 | A kind of sharing method and terminal of auxiliary positioning data |
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2014
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| CN101557414A (en) * | 2008-04-10 | 2009-10-14 | 中国移动通信集团公司 | Positioning method, equipment and system based on WLAN |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015131581A1 (en) | 2015-09-11 |
| CN105517142A (en) | 2016-04-20 |
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