CN102448166A - A positioning method and system, and mobile terminal - Google Patents
A positioning method and system, and mobile terminal Download PDFInfo
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- CN102448166A CN102448166A CN2011104437894A CN201110443789A CN102448166A CN 102448166 A CN102448166 A CN 102448166A CN 2011104437894 A CN2011104437894 A CN 2011104437894A CN 201110443789 A CN201110443789 A CN 201110443789A CN 102448166 A CN102448166 A CN 102448166A
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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
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/01—Determining conditions which influence positioning, e.g. radio environment, state of motion or energy consumption
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0205—Details
- G01S5/0244—Accuracy or reliability of position solution or of measurements contributing thereto
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention provides a positioning method, a positioning system and a mobile terminal, wherein the method comprises the following steps: the method comprises the steps that a mobile terminal initiates a Secure User Plane (SUPL) positioning process and a Wifi positioning process; the positioning result of the mobile terminal is determined according to the SUPL positioning result and the Wifi positioning result, the success rate of positioning can be improved, and the positioning precision can be improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a positioning method and system based on WIFI positioning and SUPL positioning and a mobile terminal.
Background
The mobile positioning service is a value-added service in which a mobile network acquires position information (latitude and longitude coordinates) of a mobile terminal through a specific positioning technology, provides the position information for a user, a communication system or a third party, and provides information related to the position of the mobile user by the support of certain electronic map information. The mobile positioning service has very wide application, which can make the mobile user more convenient when going out and help us to reach the destination in the most economic way; the user can be rescued more quickly in case of emergency; but also help us to get the position of the relatives, etc. More and more mobile location services require higher location success rates and location accuracy and shorter response times. With the help of the high-speed download capability of the 3G network, the SUPL (secure user plane) based a-GPS (assisted global positioning system) technology proposed by OMA (developed mobile alliance) will become the mainstream direction of mobile positioning development.
The basic principle of SUPL-based AGPS positioning is to use external resources (e.g. an assistance server and a GPS reference network) to transfer GPS assistance data to a GPS receiver on the mobile terminal via a wireless link to assist the GPS receiver in performing GPS positioning. The advantage of the AGPS solution is mainly in its positioning accuracy. In open areas such as outdoors and the like, the accuracy can reach about 10 meters under the normal GPS working environment, and the method can be called as a positioning technology with the highest positioning accuracy at present. Another advantage of this technique is: the time to first acquire a GPS signal typically only needs a few seconds. Although the GPS receiver reduces the requirement for the satellite signal reception quality due to the navigation messages provided by the network, the problem of positioning in the city still cannot be solved satisfactorily, particularly in the indoor environment.
In recent years, Wifi networks are gradually built, and especially in places with high buildings standing and dense population in large cities, Wifi hotspots (i.e., APs, wireless routers) are increasing. The hotspot will always transmit signals to the surroundings, as long as it is powered on, regardless of its presence or absence of encryption. The signal contains the unique global ID of the hotspot, which can be used to locate the location as long as the presence of the hotspot signal is sensed. The premise of Wifi positioning is that a mobile terminal with a Wifi function must be within a coverage range of a Wifi network, that is, a wireless signal of a surrounding Wifi wireless network access point can be searched. Just this prerequisite has made the defect of WIFI location, that is to say can not carry out WIFI location in the place that does not have WIFI wireless network to cover. At present, the deployment of the WIFI wireless network is limited to a dense place in a large city, and the WIFI positioning is ineffective compared with a remote area which does not cover the WIFI wireless network.
Disclosure of Invention
The invention aims to provide a positioning method, a positioning system and a mobile terminal to improve the success rate of positioning.
In order to solve the above technical problem, the present invention provides a positioning method, including:
the method comprises the steps that a mobile terminal initiates a Secure User Plane (SUPL) positioning process and a Wifi positioning process;
and determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result.
Further, the method also has the following characteristics: the mobile terminal initiates SUPL positioning flow, which comprises the following steps:
the mobile terminal and the SUPL positioning platform carry out continuous positioning-related auxiliary data and measurement data exchange;
and carrying out position calculation according to the auxiliary data and the measurement data to obtain an SUPL positioning result.
Further, the method also has the following characteristics: the mobile terminal initiates a Wifi positioning process, which comprises the following steps:
detecting Wifi access points around the mobile terminal;
inquiring corresponding geographic information from a Wifi positioning server according to the Wifi access point;
and taking the received information returned by the Wifi positioning server as a Wifi positioning result.
Further, the method also has the following characteristics: the mobile terminal determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result comprises the following steps:
if the positioning of only one positioning process is judged to be successful according to the SUPL positioning result and the Wifi positioning result, the SUPL positioning result or the Wifi positioning result which is successfully positioned is used as the positioning result of the mobile terminal;
and if the positioning of the two positioning processes is judged to be successful according to the SUPL positioning result and the Wifi positioning result, comparing the SUPL positioning result with the Wifi positioning result, and taking the positioning result with high precision as the positioning result of the mobile terminal.
Further, the method also has the following characteristics: the mobile terminal initiates a SUPL positioning process and a Wifi positioning process, and the steps comprise:
the mobile terminal initiates an SUPL positioning process after receiving the SUPL message;
after the SUPL positioning process is started, the Wifi positioning process is triggered.
In order to solve the above problem, the present invention also provides a mobile terminal, including:
a Global Positioning System (GPS) positioning module for initiating a Secure User Plane (SUPL) positioning procedure and transmitting the SUPL positioning result to the control module;
the Wifi positioning module is used for initiating a Wifi positioning process and sending a Wifi positioning result to the control module;
and the control module is used for determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result.
Further, the mobile terminal also has the following characteristics: the GPS positioning module comprises:
a switching unit for performing continuous positioning-related assistance data and measurement data exchange with the SUPL positioning platform;
and the calculating unit is used for carrying out position calculation according to the auxiliary data and the measurement data to obtain an SUPL positioning result.
Further, the mobile terminal also has the following characteristics: the Wifi positioning module comprises:
the detection unit is used for detecting Wifi access points around the mobile terminal;
and the query unit is used for querying the corresponding geographic information from the Wifi positioning server according to the Wifi access point and taking the received information returned by the Wifi positioning server as a Wifi positioning result.
Further, the mobile terminal also has the following characteristics: the control module includes:
the judging unit is used for judging the positioning conditions of the two positioning processes according to the SUPL positioning result and the Wifi positioning result;
the first positioning unit is used for taking an SUPL positioning result or a Wifi positioning result which is successfully positioned as a positioning result of the mobile terminal under the condition that the judging unit judges that only one positioning process is successfully positioned;
and the second positioning unit is used for comparing the SUPL positioning result with the Wifi positioning result and taking the positioning result with high precision as the positioning result of the mobile terminal under the condition that the judging unit judges that the positioning of the two positioning processes is successful.
Further, the mobile terminal also has the following characteristics:
the GPS positioning module initiates the SUPL positioning process after receiving the SUPL message and then informs the control module;
and the control module triggers the Wifi positioning module to initiate a Wifi positioning process after receiving the notification.
In order to solve the above problem, the present invention further provides a positioning system, including: secure User Plane (SUPL) location server, Wifi hotspot server and mobile terminal thereof
In summary, the present invention provides a positioning method and system, and a mobile terminal, which can improve the success rate of positioning and improve the accuracy of positioning.
Drawings
FIG. 1 is an architectural diagram of a positioning system in accordance with an embodiment of the present invention;
fig. 2 is a schematic diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 3 is a flow chart of a positioning method according to an embodiment of the present invention;
fig. 4 is a flowchart of a positioning method according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 is an architecture diagram of a positioning system according to an embodiment of the present invention, and as shown in fig. 1, the system according to the embodiment includes a mobile terminal, a SUPL positioning server, and a Wifi hotspot server, where the mobile terminal is connected to the SUPL positioning server and the Wifi hotspot server through a mobile network.
The SUPL positioning server is used for providing positioning auxiliary data for a GPS positioning module of the mobile terminal, and the SUPL positioning server and the mobile terminal complete the positioning of the mobile terminal together;
the Wifi hotspot server is used for storing the coordinates of Wifi hotspots, and the coordinates of all Wifi hotspots which are successfully positioned once are stored in the database;
the mobile terminal needs to be equipped with a positioning device (a GPS chip and a Wifi chip), wherein, as shown in fig. 2, the mobile terminal includes: GPS orientation module, Wifi orientation module and control module. Wherein,
the GPS positioning module is used for initiating an SUPL positioning process and sending the SUPL positioning result to the control module;
the Wifi positioning module is used for initiating a Wifi positioning process and sending a Wifi positioning result to the control module;
and the control module is used for determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result.
Wherein the GPS positioning module comprises:
a switching unit for performing continuous positioning-related assistance data and measurement data exchange with the SUPL positioning platform;
and the calculating unit is used for carrying out position calculation according to the auxiliary data and the measurement data to obtain an SUPL positioning result.
The switching unit and the SUPL positioning platform may perform continuous positioning-related auxiliary data and measurement data exchange through SUPL POS messages.
Wherein, Wifi orientation module includes:
the detection unit is used for detecting Wifi access points around the mobile terminal;
and the query unit is used for querying the corresponding geographic information from the Wifi positioning server according to the Wifi access point and taking the received information returned by the Wifi positioning server as a Wifi positioning result.
Wherein the control module comprises:
the judging unit is used for judging the positioning conditions of the two positioning processes according to the SUPL positioning result and the Wifi positioning result;
the first positioning unit is used for taking an SUPL positioning result or a Wifi positioning result which is successfully positioned as a positioning result of the mobile terminal under the condition that the judging unit judges that only one positioning process is successfully positioned;
and the second positioning unit is used for comparing the SUPL positioning result with the Wifi positioning result and taking the positioning result with high precision as the positioning result of the mobile terminal under the condition that the judging unit judges that the positioning of the two positioning processes is successful.
In a preferred embodiment, the GPS positioning module initiates a SUPL positioning procedure after receiving a SUPL message, and then notifies the control module;
and the control module triggers the Wifi positioning module to initiate a Wifi positioning process after receiving the notification.
Fig. 3 is a flowchart of a positioning method according to an embodiment of the present invention, and as shown in fig. 3, the method according to the embodiment includes the following steps:
s10, the mobile terminal initiates a SUPL positioning process and a Wifi positioning process;
and S20, determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result.
The embodiment of the invention provides a mobile terminal positioning method and a mobile terminal positioning system based on hybrid positioning, which are used for improving the positioning success rate and the positioning precision of a mobile terminal by combining SUPL positioning and Wifi positioning. And the mobile terminal starts a Wifi positioning process when SUPL positioning is started, finishes the comparison of the positioning results by the mobile terminal according to a certain algorithm by the Wifi positioning result and the SUPL positioning result after the positioning is finished, and takes the result with high precision as the final positioning result of the mobile terminal.
To further illustrate the technical means and effects of the present invention for achieving the predetermined purpose, a method for improving the success rate and accuracy of mobile terminal positioning based on SUPL positioning and Wifi positioning is described in detail below with reference to the accompanying drawings and embodiments.
Fig. 4 is a flowchart of a positioning method according to an embodiment of the present invention, as shown in fig. 4, the method includes the following steps:
step 201: the positioning application on the mobile terminal triggers a positioning process to notify the control module to start positioning, and then step 202 and step 206 can be executed simultaneously;
step 202: a control module of the mobile terminal informs a Wifi positioning module to start a Wifi positioning process;
step 203: the method comprises the following steps that a Wifi positioning module detects Wifi access points around a mobile terminal;
step 204: the Wifi positioning module sends the Wifi access point detected in the step 203 to a Wifi positioning server through a mobile network to inquire geographic coordinates corresponding to the Wifi access point;
any Wifi access point that was previously located successfully will have a record in the database on the server. If the Wifi access point reported by the mobile terminal cannot be inquired on the Wifi positioning server, the Wifi positioning fails at this time; and if the Wifi access point reported by the mobile terminal can be inquired in the Wifi positioning server, returning the searched coordinates to the mobile terminal.
Step 205: the mobile terminal Wifi positioning module transmits the Wifi positioning result to the mobile terminal control module, and then the process goes to step 210;
step 206: a control module of the mobile terminal informs a GPS positioning module to start an SUPL positioning process;
step 207: the GPS positioning module of the mobile terminal and the SUPL server carry out continuous positioning related auxiliary data and measurement data exchange through the SUPL POS message;
step 208: the GPS positioning module of the mobile terminal calculates the position of the mobile terminal according to the auxiliary data and the measurement data in step 207;
step 209: the GPS positioning module of the mobile terminal transmits the SUPL positioning result to the mobile terminal control module, and then proceeds to step 210;
step 210: the mobile terminal control module determines a positioning result;
if both the SUPL positioning and the Wifi positioning fail, the positioning result is failure; if the Wifi positioning is successful and the SUPL positioning is failed, taking the Wifi positioning result as a final positioning result; if the Wifi positioning fails and the SUPL positioning succeeds, taking the SUPL positioning result as a final positioning result; and if the Wifi positioning and the SUPL positioning are both successful, comparing the precision of the positioning results obtained by the two positioning methods, and taking the high-precision one as a final positioning result.
For example, the SUPL positioning result may carry one positioning accuracy, the Wifi positioning result also carries a corresponding positioning accuracy, and by comparing the two positioning accuracies, which positioning method has higher accuracy is obtained, and then the positioning result with higher accuracy is taken.
Step 211: and the mobile terminal control module returns the positioning result to the positioning application.
Wherein step 202/203/204/205 of the Wifi positioning procedure and step 206/207/208/209 of the SUPL positioning procedure are performed simultaneously.
The GPS location module of the mobile terminal in this embodiment may actively initiate location (e.g., receive a SUPL RESPONSE message from a SUPL Location Platform (SLP)); or passively initiating location (e.g., receiving a SUPL INIT message from a SUPL Location Platform (SLP)) and notifying the control module that SUPL location is enabled, then recording the status of SUPL location by the control module and triggering Wifi location.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The foregoing is only a preferred embodiment of the present invention, and naturally there are many other embodiments of the present invention, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the scope of the appended claims.
Claims (11)
1. A method of positioning, comprising:
the method comprises the steps that a mobile terminal initiates a Secure User Plane (SUPL) positioning process and a Wifi positioning process;
and determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result.
2. The method of claim 1, wherein: the mobile terminal initiates SUPL positioning flow, which comprises the following steps:
the mobile terminal and the SUPL positioning platform carry out continuous positioning-related auxiliary data and measurement data exchange;
and carrying out position calculation according to the auxiliary data and the measurement data to obtain an SUPL positioning result.
3. The method of claim 1, wherein: the mobile terminal initiates a Wifi positioning process, which comprises the following steps:
detecting Wifi access points around the mobile terminal;
inquiring corresponding geographic information from a Wifi positioning server according to the Wifi access point;
and taking the received information returned by the Wifi positioning server as a Wifi positioning result.
4. The method of any one of claims 1-3, wherein: the mobile terminal determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result comprises the following steps:
if the positioning of only one positioning process is judged to be successful according to the SUPL positioning result and the Wifi positioning result, the SUPL positioning result or the Wifi positioning result which is successfully positioned is used as the positioning result of the mobile terminal;
and if the positioning of the two positioning processes is judged to be successful according to the SUPL positioning result and the Wifi positioning result, comparing the SUPL positioning result with the Wifi positioning result, and taking the positioning result with high precision as the positioning result of the mobile terminal.
5. The method of any one of claims 1-3, wherein: the mobile terminal initiates a SUPL positioning process and a Wifi positioning process, and the steps comprise:
the mobile terminal initiates an SUPL positioning process after receiving the SUPL message;
after the SUPL positioning process is started, the Wifi positioning process is triggered.
6. A mobile terminal, comprising:
a Global Positioning System (GPS) positioning module for initiating a Secure User Plane (SUPL) positioning procedure and transmitting the SUPL positioning result to the control module;
the Wifi positioning module is used for initiating a Wifi positioning process and sending a Wifi positioning result to the control module;
and the control module is used for determining the positioning result of the mobile terminal according to the SUPL positioning result and the Wifi positioning result.
7. The mobile terminal of claim 6, wherein: the GPS positioning module comprises:
a switching unit for performing continuous positioning-related assistance data and measurement data exchange with the SUPL positioning platform;
and the calculating unit is used for carrying out position calculation according to the auxiliary data and the measurement data to obtain an SUPL positioning result.
8. The mobile terminal of claim 6, wherein: the Wifi positioning module comprises:
the detection unit is used for detecting Wifi access points around the mobile terminal;
and the query unit is used for querying the corresponding geographic information from the Wifi positioning server according to the Wifi access point and taking the received information returned by the Wifi positioning server as a Wifi positioning result.
9. The mobile terminal according to any of claims 6-8, characterized by: the control module includes:
the judging unit is used for judging the positioning conditions of the two positioning processes according to the SUPL positioning result and the Wifi positioning result;
the first positioning unit is used for taking an SUPL positioning result or a Wifi positioning result which is successfully positioned as a positioning result of the mobile terminal under the condition that the judging unit judges that only one positioning process is successfully positioned;
and the second positioning unit is used for comparing the SUPL positioning result with the Wifi positioning result and taking the positioning result with high precision as the positioning result of the mobile terminal under the condition that the judging unit judges that the positioning of the two positioning processes is successful.
10. The mobile terminal according to any of claims 6-8, characterized by:
the GPS positioning module initiates the SUPL positioning process after receiving the SUPL message and then informs the control module;
and the control module triggers the Wifi positioning module to initiate a Wifi positioning process after receiving the notification.
11. A positioning system, comprising: secure User Plane (SUPL) location server, Wifi hotspot server and mobile terminal according to any of claims 6-10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104437894A CN102448166A (en) | 2011-12-27 | 2011-12-27 | A positioning method and system, and mobile terminal |
| PCT/CN2012/071807 WO2013097342A1 (en) | 2011-12-27 | 2012-03-01 | Locating method and system, and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104437894A CN102448166A (en) | 2011-12-27 | 2011-12-27 | A positioning method and system, and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102448166A true CN102448166A (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011104437894A Pending CN102448166A (en) | 2011-12-27 | 2011-12-27 | A positioning method and system, and mobile terminal |
Country Status (2)
| Country | Link |
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| CN (1) | CN102448166A (en) |
| WO (1) | WO2013097342A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790946A (en) * | 2012-05-17 | 2012-11-21 | 江苏中科梦兰电子科技有限公司 | Geographical position query method |
| CN103052152A (en) * | 2012-12-14 | 2013-04-17 | 中兴通讯股份有限公司 | Method and device for positioning mobile terminal and mobile terminal |
| CN103308934A (en) * | 2013-06-20 | 2013-09-18 | 上海无线电设备研究所 | Method for positioning indoor moving persons by aid of WIFI (wireless fidelity) reflected signals |
| CN103458404A (en) * | 2012-05-29 | 2013-12-18 | 盛乐信息技术（上海）有限公司 | Wi-Fi hotspot connection method and system |
| CN103731915A (en) * | 2012-10-11 | 2014-04-16 | 中兴通讯股份有限公司 | Auxiliary global positioning method and mobile terminal |
| CN105120430A (en) * | 2015-07-23 | 2015-12-02 | 小米科技有限责任公司 | Terminal positioning method, device and terminal |
| CN105472561A (en) * | 2016-01-13 | 2016-04-06 | 广东欧珀移动通信有限公司 | Positioning method and device for mobile terminal and mobile terminal |
| CN112823535A (en) * | 2018-10-15 | 2021-05-18 | 高通股份有限公司 | Locating mobile device with 5G wireless access using SUPL |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114660642B (en) * | 2022-03-21 | 2025-05-27 | Oppo广东移动通信有限公司 | Positioning method, device, terminal equipment and computer readable storage medium |
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| CN112823535A (en) * | 2018-10-15 | 2021-05-18 | 高通股份有限公司 | Locating mobile device with 5G wireless access using SUPL |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013097342A1 (en) | 2013-07-04 |
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