CN103731915A - Auxiliary global positioning method and mobile terminal - Google Patents
Auxiliary global positioning method and mobile terminal Download PDFInfo
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- CN103731915A CN103731915A CN201210384479.4A CN201210384479A CN103731915A CN 103731915 A CN103731915 A CN 103731915A CN 201210384479 A CN201210384479 A CN 201210384479A CN 103731915 A CN103731915 A CN 103731915A
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
- G01S19/06—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data employing an initial estimate of the location of the receiver as aiding data or in generating aiding data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Radar, Positioning & Navigation (AREA)
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Abstract
The invention provides an auxiliary global positioning method and a mobile terminal. The method comprises the steps of generating a positioning service request; selecting an available mobile internet network as a bearing network of positioning information according to the positioning service request; obtaining the network parameters of the bearing network; and obtaining the positioning information of the terminal through the bearing network according to the network parameters. The mobile terminal can select one mobile internet network as the bearing network of the positioning information according to the positioning service request. According to the auxiliary global positioning method, the available mobile internet network is selected as the bearing network of the positioning information according to the positioning service request, and a scheme selecting the bearing network is provided for the terminal to obtain the positioning information. Compared with an existing auxiliary global positioning method which supports one bearing network, the applied range for the mobile terminal to carry out auxiliary global positioning is expanded.
Description
Technical field
The invention belongs to communication technical field, refer to especially a kind of auxiliary global positioning method and mobile terminal.
Background technology
At present, location-based service has become in mobile terminal one of the most basic the most common function.For location-based service more is easily provided to user, various location-based service technology are applied and are given birth to, as senior forward direction triangle link (AFLT:Advanced Forward Link Trilateration), cell identification number (CELLID:Cell Identity), the time of advent poor (TDOA:Time Difference Of Arrival), enhancing Observable time difference (EOTD:Enhanced Observed Time Difference), Observable arrive the time (OTDOA:Observed Time Difference Of Arrival) etc.
In position service field, locating speed and accuracy are two affects the very important index that user experiences.Assisted global location technology has improved this two indexs very significantly, especially aspect locating speed.For the integration requirement to lower deployment cost, setting accuracy, speed etc., the assisted global location technology based on user plane becomes at present the mobile positioning technique of main flow the most.Assisted global location technology is divided into assisted global location technology based on user plane and the assisted global location technology based on control plane, assisted global location technology based on user plane is most widely used aspect location navigation, wherein most widely used and the most representative to open secure user plane location (SUPL:Secure User Plan Location) standard that mobile phone alliance (OMA:Open Mobile Alliance) formulates.
The basic principle of SUPL is, the scope of business module of terminal is by the identification code of the current mobile terminal resident band of position is sent to assist location server, assist location server according to the location area of terminal fast to terminal return terminal region visible, for auxiliary positioning datas such as ephemeris, year calendar and the Doppler of the satellite of locating, ionospheres.This assisted global locate mode has replaced terminal and has transferred to obtain above-mentioned auxiliary positioning data by the solution of satellite-signal at a slow speed, thereby has accelerated locating speed.
At present in assisted global location technology, conventional have three kinds of locate modes:
Method one, mobile terminal obtains the locating information of assist location server by cellular network.When mobile terminal supporting cellular access to netwoks the Internet, scope of business module in mobile terminal sends to assist location server by the positioning request information of carrying target terminal, assist location server positions target terminal, and the location information of mobile terminal that location is obtained sends to scope of business module by cellular network, to realize the assisted global location by cellular network.Cellular Networks has more user at present, supports more eurypalynous mobile phone, and common cellular network has GSM network, cdma network, 3G network, FDMA, TDMA, PDC, TACS, AMPS etc.Universal due to cellular network, makes cellular network carry out the utilization rate of assisted global location higher.But when mobile terminal forbidding cellular network or mobile terminal be not during plug-in card, and now mobile terminal can be used WIFI(wireless-fidelity) during accesses network, but the mobile terminal that can carry out network interconnection but cannot be realized assisted global location.And this scheme requires mobile terminal must possess the function accessing by cellular network, but in some cases, mobile terminal does not meet above-mentioned functions, as pure WIFI PAD etc.The cellular network that places one's entire reliance upon in agps system obtains the design of assist location information, limited mobile terminal and carry out the scope of assisted global location.
Method two, mobile terminal obtains the locating information of assist location server by WIFI.WIFI is a kind of short range wireless transmission technology, can adopt within the specific limits WIFI connected mode to network.When mobile terminal is supported WIFI access the Internet, scope of business module in mobile terminal sends to assist location server by the positioning request information of carrying target terminal, assist location server positions target terminal, and the location information of mobile terminal that location is obtained sends to scope of business module by WIFI mode.Because WIFI is a kind of free WLAN (wireless local area network), can within the scope of hundreds of feet, support the Internet access, there is application prospect more widely.But, support that at present the assist location server of WIFI location is few, support that the equipment supplier of WIFI location is also little.Due to the restriction of WIFI application, when relying on WIFI completely and carry out assisted global location, under current state, successfully ratio is lower.
Method three, downloads assist location program by mobile Internets such as the cellular network on mobile terminal or WIFI, obtains assist location information.It is by downloading assist location information, carrying out assisted global location that the method is carried out assisted global location.At present, the service of this download assist location information is to be provided by special service provider, needs to pay just can download.And the data precision of this download is not very high, is not real-time locator data, make the poor-performing of assisted global location.
Summary of the invention
The technical problem to be solved in the present invention is, it is as bearer network according to the mobile Internet of acquiescence that terminal is carried out assisted global location, the mobile internet that also there are other in terminal, can not select other the mobile Internet as the bearer network of locating information, thereby limit terminal and carry out the range of application of assisted global location.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of auxiliary global positioning method, comprising:
Produce a location service request;
According to described location service request, select the bearer network of an available mobile internet as locating information;
Obtain the network parameter of described bearer network;
According to described network parameter, by described bearer network, obtain the locating information of terminal.
Preferably, according to described location service request, select an available mobile internet to comprise as the step of the bearer network of locating information:
According to described location service request, judge the current available mobile internet that whether has;
If current, there is mobile Internet to use, according to mobile Internet state actual in user's configuration and mobile terminal, select the bearer network of an available mobile internet as locating information.
Preferably, select also to comprise after the bearer network of an available mobile internet as locating information:
Obtain the routing parameter of described bearer network, and configure described routing parameter.
Preferably, the step of obtaining the network parameter of described bearer network comprises:
Produce a network parameter request;
According to described network parameter request, and the current network state of described bearer network and/or the configuration of user to this bearer network, obtain the network parameter of described bearer network.
Preferably, according to described network parameter request, and the current network state of described bearer network and/or the configuration of user to this bearer network, the step of obtaining the network parameter of described bearer network comprises:
According to described network parameter request, for the mobile terminal that possesses honeycomb mobile Internet access function, described honeycomb mobile Internet is as described bearer network, the state of the configuration according to user to described honeycomb mobile Internet and honeycomb mobile Internet, obtains the network parameter of described honeycomb mobile Internet; Or
According to described network parameter request, for the mobile terminal that does not possess honeycomb mobile Internet access function, other network except described honeycomb mobile Internet is as described bearer network, the parameter configuration of described other network of described mobile terminal being supported according to user, obtains described other network of network parameter.
Preferably, described other network is WIFI network.
Preferably, according to described network parameter, the step of obtaining the locating information of terminal by described bearer network comprises:
Produce a location service data visitation request;
According to described positioning service data access request and described network parameter, by described bearer network, obtain the locating information of terminal.
The present invention also provides a kind of mobile terminal, comprising:
Assisted global locating module, for produce a location service request to decision-making module, and receives the network parameter of network carrying module, according to described network parameter, by bearer network, obtains locating information;
Decision-making module, the location service request sending for receiving auxiliary global locating module, according to location service request, select the bearer network of an available mobile internet as locating information, and obtain the network parameter of described bearer network and described network parameter is sent to assisted global locating module;
Network carrying module, for according to the selection of decision-making module, provides a kind of bearer network of locating information, and network parameter is sent to assisted global locating module to assisted global locating module.
Preferably, described decision-making module comprises:
Receiver module, the location service request sending for receiving auxiliary global locating module, and receive the network parameter that network carrying module sends;
Judge module, for according to described location service request, judges the current available mobile internet that whether has;
Select module, for determining currently while having mobile Internet available, according to mobile Internet state actual in user's configuration and mobile terminal, select the bearer network of an available mobile internet as locating information.
Preferably, described assisted global locating module comprises:
Positioning service sending module, for sending location service request to decision-making module;
Network parameter receiver module, for receiving the network parameter of network carrying module;
Locating information acquisition module, for according to network parameter, obtains locating information by bearer network.
The beneficial effect of technique scheme of the present invention is as follows: auxiliary global positioning method provided by the invention, to select the bearer network of available mobile internet as locating information according to location service request, for terminal, obtain locating information a scheme of selecting bearer network is provided, than existing auxiliary global positioning method, only support a kind of bearer network, expanded mobile terminal and carry out the range of application of assisted global location.
Accompanying drawing explanation
Fig. 1 is the flow chart of the assisted global location of an embodiment provided by the invention;
Fig. 2 is the flow chart that a kind of embodiment of the present invention selects available mobile internet;
Fig. 3 is the flow chart that another embodiment of the present invention is selected available mobile internet;
Fig. 4 is the flow chart that one embodiment of the invention is obtained the network parameter of bearer network;
Fig. 5 is the flow chart that obtains terminal location information of one embodiment of the invention;
Fig. 6 is the flow chart that an embodiment of the present invention is obtained network parameter;
Fig. 7 is the structured flowchart of the mobile terminal of one embodiment of the invention;
Fig. 8 is the structured flowchart of the decision-making module of one embodiment of the invention;
Fig. 9 is the structured flowchart of the assisted global locating module of one embodiment of the invention;
Figure 10 is the flow chart of the mobile terminal work of one embodiment of the invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, for the flow chart that the assisted global of an embodiment provided by the invention is located, comprise the steps:
Step S101: produce a location service request.
Step S102: according to described location service request, select the bearer network of an available mobile internet as locating information.
Step S103: the network parameter that obtains described bearer network.
Step S104: according to described network parameter, obtain the locating information of terminal by described bearer network.
Existing auxiliary global positioning method is only supported a kind of bearer network, along with the development of development of Mobile Internet technology, in terminal, there is two or more mobile internet, once the bearer network of acquiescence can not be realized assisted global location, just make this mobile terminal can not to realize assisted global location, thereby limited mobile terminal and carry out the range of application of assisted global location.Auxiliary global positioning method provided by the invention, to select the bearer network of available mobile internet as locating information according to location service request, in the disabled situation of acquiescence mobile internet, can select other mobile internet as the carrying networking of locating information, the method is by selecting bearer network to obtain the ephemeris information (comprising visible and sightless position location satellite) of current all position location satellites and other assist location information (as the UTC time etc.), for terminal, obtain locating information a scheme of selecting bearer network is provided, thereby expanded mobile terminal and carried out the range of application of assisted global location.
As shown in Figure 2, for the flow chart that a kind of embodiment of the present invention selects available mobile internet, specifically comprise the steps:
Step S201: receive location service request.
Step S202: judge the current available mobile internet that whether has, judge whether terminal has the mobile internet of support, if nothing is carried out end step S203, if having, perform step S204.
Step S204: have mobile Internet to use if current, according to mobile Internet state actual in user's configuration and mobile terminal, select the bearer network of an available mobile internet as locating information.
As shown in Figure 3, for another embodiment of the present invention is selected the flow chart of available mobile internet, basic identical with the flow process of Fig. 2, difference is also to comprise step S205 after step 204, obtain the routing parameter of described bearer network, and configure the step of described routing parameter.The object of configuration routing parameter is to carry out the communication network configuration of bearer network.
The present invention judges by the mobile internet to terminal, current have mobile Internet to use in the situation that, according to mobile Internet state actual in user's configuration and terminal, select a kind of bearer network for locating information, thereby expanded terminal and obtain the approach of locating information.
As shown in Figure 4, for one embodiment of the invention, obtain the flow chart of the network parameter of bearer network, comprise the steps:
Step S401: produce a network parameter request.
Step S402: according to described network parameter request, and the current network state of described bearer network and/or the configuration of user to this bearer network, obtain the network parameter of described bearer network.
The network parameter that obtains bearer network of the present invention is according to network parameter request and current network state and/or user, the configuration of this bearer network to be decided, and can comprise: the positional information that home network or mobile terminal belong to.
As shown in Figure 5, for the flow chart that obtains terminal location information of one embodiment of the invention, comprise the steps:
Step S501: produce a location service data visitation request.
Step S502: according to described positioning service data access request and described network parameter, by described bearer network, obtain the locating information of terminal.
As shown in Figure 6, for an embodiment of the present invention, obtain the flow chart of network parameter, comprise the steps: in detail
Step S601: receive network parameter request.
Step S602: judge whether mobile terminal possesses honeycomb mobile Internet access function, if having, performs step S603, if not, performs step S604.
Step S603: the configuration according to user to described cellular network and the state of cellular network, obtain the network parameter of described cellular network.
Step S604: further judge whether mobile terminal also possesses other mobile Internet access functions, if having, carries out end step S605, if not, performs step S606.
Step S606: the parameter configuration of described other network of described mobile terminal being supported according to user, obtain described other network of network parameter.
This embodiment of the present invention, according to whether there being other mobile Internet on mobile terminal, when having other mobile Internet access functions, obtains other corresponding network of network parameters.For the terminal that possesses cellular network access function, using cellular network as described bearer network, the configuration according to user to cellular network and the state of cellular network, obtain the network parameter of cellular network.For the terminal that does not possess cellular network access function, using other network except described cellular network as described bearer network, the parameter configuration of other network of terminal being supported according to user, obtains this other network of network parameters.Other networks can be the mobile Internets that the various terminals such as WIFI network are supported.
Below in conjunction with a specific embodiment, auxiliary global positioning method of the present invention is described:
On certain mobile terminal, there is supporting cellular network and WIFI network access functions, when this mobile terminal is initiated location service request, if current cellular network can be used, select cellular network as locating information bearer network, according to the state of user's configuration and current cellular network, and obtain cellular network parameters such as comprising the network state of cellular network and the positional information of mobile terminal ownership, and cellular network parameter is sent to assisted global locating module.Assisted global locating module, according to cellular network parameter, obtains the locating information of terminal by described cellular network.If cellular network is unavailable, selects the bearer network of WIFI network as locating information, and obtain WIFI network of network parameter, according to WIFI network of network parameter, by the locating information of described WIFI Network Capture terminal.
The invention solves without cellular network access function or function of cellular networks temporarily cannot with, do not support to do the terminal in the situation of assisted global location by mobile Internets such as WIFI, in the situation that mobile Internets such as having WIFI network can be used, still cannot do the problem of assisted global location.The range of application of having expanded assisted global location, promotes the experience of user for location-based service.
As shown in Figure 7, be the structured flowchart of the mobile terminal of one embodiment of the invention, comprising:
Assisted global locating module 100, for produce a location service request to decision-making module, receives the network parameter of network carrying module, and according to described network parameter, by bearer network, obtains locating information.
Decision-making module 200, the location service request sending for receiving auxiliary global locating module, according to location service request, select the bearer network of an available mobile internet as locating information, and obtain the network parameter of described bearer network and described network parameter is sent to assisted global locating module.
As shown in Figure 8, be the structured flowchart of the decision-making module of one embodiment of the invention, specifically comprise:
As shown in Figure 9, be the structured flowchart of the assisted global locating module of one embodiment of the invention, specifically comprise:
Positioning service sending module 101, for sending location service request to decision-making module;
Network parameter receiver module 102, for receiving the network parameter of network carrying module;
Locating information acquisition module 103, for according to network parameter, obtains locating information by bearer network.
As shown in figure 10, for the flow chart of the mobile terminal work of one embodiment of the invention, comprise the steps:
Step S1001: assisted global locating module 100 is initiated location service request, and by function call, by location service request, give decision-making module 200.
Step S1002: decision-making module 200 is according to current network state and user's configuration information, selects the bearer network of an available mobile internet as locating information, and adding routing table in corresponding network.If decision-making carrys out bearing data service by WIFI, in the routing table of mobile terminal, add the route that a data link is WIFI place link, if decision-making is cellular network, carry out bearing data service, in the routing table of mobile terminal, add the route that a data link is cellular network place link.
Step S1003: decision information is returned to assisted global locating module 100 by function call.
Step S1004: assisted global locating module 100 is initiated network parameter request, and by function call, by network parameter request, give decision-making module 200.
Step S1005: decision-making module 200 is according to current network state and user's configuration information, the source mode of decision networks parameter, and obtain corresponding network parameter, as be WIFI network, the pre-configured network parameter of user.
Step S1006: the network parameter information exchange after decision-making is crossed to function call and return to assisted global locating module 100;
Step S1007: assisted global locating module 100 is initiated positioning service data access request, and by the corresponding bearer network of function call.
Step S1008: assisted global locating module 100 obtains locating information by described bearer network.
Below in conjunction with a specific embodiment, the work engineering of terminal of the present invention is described:
Assisted global locating module is initiated the data service parameter request of positioning service, by decision-making module, by decision-making is current, whether has an available mobile internet, comprises honeycomb mobile Internet or WIFI etc.If decision-making module judgement is current, there is mobile Internet to use,, according to mobile Internet state actual in user's configuration and mobile terminal, decision-making is the Deta bearer entity as assisted global location with other mobile Internets such as honeycomb mobile Internet or WIFI.Decision-making module configures the relevant routing parameter of assisted global location in the carrying entity (as WIFI) of institute's decision-making, and by corresponding decision information notice assisted global locating module.
Assisted global locating module is initiated network parameter request, as positional information that home network or mobile terminal belonged to etc.For the mobile terminal that possesses honeycomb mobile Internet access function, decision-making module, obtains corresponding network state and positional information etc., and notifies assisted global locating module at state according to user's configuration and current cellular network.For the mobile device that does not possess honeycomb mobile Internet access function, decision-making module produces positional information that corresponding network parameter and mobile terminal belong to etc. according to user's configuration, and by these decision informations notice assisted global locating modules.Assisted global locating module, according to network parameter, obtains locating information by bearer network.
Auxiliary global positioning method provided by the invention, to select the bearer network of available mobile internet as locating information according to location service request, in the disabled situation of acquiescence mobile internet, select other mobile internet as the carrying networking of locating information, for terminal, obtain locating information a scheme of selecting bearer network is provided, thereby expanded mobile terminal and carry out the range of application of assisted global location.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an auxiliary global positioning method, is characterized in that, comprising:
Produce a location service request;
According to described location service request, select the bearer network of an available mobile internet as locating information;
Obtain the network parameter of described bearer network;
According to described network parameter, by described bearer network, obtain the locating information of terminal.
2. auxiliary global positioning method according to claim 1, is characterized in that, according to described location service request, selects an available mobile internet to comprise as the step of the bearer network of locating information:
According to described location service request, judge the current available mobile internet that whether has;
If current, there is mobile Internet to use, according to mobile Internet state actual in user's configuration and mobile terminal, select the bearer network of an available mobile internet as locating information.
3. auxiliary global positioning method according to claim 2, is characterized in that, selects also to comprise after the bearer network of an available mobile internet as locating information:
Obtain the routing parameter of described bearer network, and configure described routing parameter.
4. auxiliary global positioning method according to claim 1, is characterized in that, the step of obtaining the network parameter of described bearer network comprises:
Produce a network parameter request;
According to described network parameter request, and the current network state of described bearer network and/or the configuration of user to this bearer network, obtain the network parameter of described bearer network.
5. auxiliary global positioning method according to claim 4, it is characterized in that, according to described network parameter request, and the current network state of described bearer network and/or the configuration of user to this bearer network, the step of obtaining the network parameter of described bearer network comprises:
According to described network parameter request, for the mobile terminal that possesses honeycomb mobile Internet access function, described honeycomb mobile Internet is as described bearer network, the state of the configuration according to user to described honeycomb mobile Internet and honeycomb mobile Internet, obtains the network parameter of described honeycomb mobile Internet; Or
According to described network parameter request, for the mobile terminal that does not possess honeycomb mobile Internet access function, other network except described honeycomb mobile Internet is as described bearer network, the parameter configuration of described other network of described mobile terminal being supported according to user, obtains described other network of network parameter.
6. auxiliary global positioning method according to claim 5, is characterized in that, described other network is WIFI network.
7. auxiliary global positioning method according to claim 1, is characterized in that, according to described network parameter, the step of obtaining the locating information of terminal by described bearer network comprises:
Produce a location service data visitation request;
According to described positioning service data access request and described network parameter, by described bearer network, obtain the locating information of terminal.
8. a mobile terminal, is characterized in that, comprising:
Assisted global locating module, for produce a location service request to decision-making module, and receives the network parameter of network carrying module, according to described network parameter, by bearer network, obtains locating information;
Decision-making module, the location service request sending for receiving auxiliary global locating module, according to location service request, select the bearer network of an available mobile internet as locating information, and obtain the network parameter of described bearer network and described network parameter is sent to assisted global locating module;
Network carrying module, for according to the selection of decision-making module, provides a kind of bearer network of locating information, and network parameter is sent to assisted global locating module to assisted global locating module.
9. mobile terminal according to claim 8, is characterized in that, described decision-making module comprises:
Receiver module, the location service request sending for receiving auxiliary global locating module, and receive the network parameter that network carrying module sends;
Judge module, for according to described location service request, judges the current available mobile internet that whether has;
Select module, for determining currently while having mobile Internet available, according to mobile Internet state actual in user's configuration and mobile terminal, select the bearer network of an available mobile internet as locating information.
10. mobile terminal according to claim 8, is characterized in that, described assisted global locating module comprises:
Positioning service sending module, for sending location service request to decision-making module;
Network parameter receiver module, for receiving the network parameter of network carrying module;
Locating information acquisition module, for according to network parameter, obtains locating information by bearer network.
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| CN201210384479.4A CN103731915B (en) | 2012-10-11 | 2012-10-11 | A kind of auxiliary global positioning method and mobile terminal |
| PCT/CN2013/080056 WO2013170832A1 (en) | 2012-10-11 | 2013-07-24 | Assisted global positioning method and mobile terminal |
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| CN201210384479.4A CN103731915B (en) | 2012-10-11 | 2012-10-11 | A kind of auxiliary global positioning method and mobile terminal |
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| CN105744618A (en) * | 2014-12-12 | 2016-07-06 | 电信科学技术研究院 | Method for carrying out positioning, system and device |
| CN108089216A (en) * | 2016-11-21 | 2018-05-29 | 千寻位置网络有限公司 | Assisted location method and system |
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- 2012-10-11 CN CN201210384479.4A patent/CN103731915B/en active Active
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| CN108089216A (en) * | 2016-11-21 | 2018-05-29 | 千寻位置网络有限公司 | Assisted location method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013170832A1 (en) | 2013-11-21 |
| CN103731915B (en) | 2017-08-25 |
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