CN110505686B - Mobile terminal positioning method and device - Google Patents
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- CN110505686B CN110505686B CN201910848196.2A CN201910848196A CN110505686B CN 110505686 B CN110505686 B CN 110505686B CN 201910848196 A CN201910848196 A CN 201910848196A CN 110505686 B CN110505686 B CN 110505686B
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- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
A method and a device for positioning a mobile terminal are provided, the method comprises the following steps: receiving a cell information list issued by a positioning server; setting the matching priority of each cell in a current cell list of the mobile terminal, wherein the current cell list comprises cell information of a serving cell and/or an adjacent cell; according to the sequence of the matching priority from high to low, sequentially matching the cell information of the current cell list with the cell information in the cell information list; the cell for the positioning calculation is determined based on the matching result. The scheme can reduce positioning time delay and improve positioning precision.
Description
The application is 2016, 03 and 31, and has the application numbers: 201610200751.7, title of the invention: a mobile terminal positioning method and device are applied in divisional cases.
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for positioning a mobile terminal.
Background
At present, most mobile terminals have Enhanced Cell identification (E-CID) functions. In the implementation process of the E-CID positioning function based on the UE, the positioning server issues the coverage information of the Area Network where the Mobile terminal is located, and the information of the serving cellular Network Cell and the neighboring Cell, which is known by the current Mobile terminal, exists in the current Cell list, such as Public Land Mobile Network (PLMN), Location Area Code (LAC), Routing Area Code (RAC), Tracking Area Code (TAC), Global Cell Identity (Global Cell Identity, Global Cell ID), Cell frequency point (freq), physical Cell Identity (physical Cell ID), and so on, of the serving cellular Network Cell and the neighboring Cell, and the Mobile terminal matches the Cell information in the current Cell list with the Cell information included in the auxiliary information issued by the Network to find a Cell suitable for positioning, the method is used for the mobile terminal to perform positioning calculation.
However, in the prior art, the E-CID positioning method based on the UE has the problems of low positioning delay and positioning accuracy.
Disclosure of Invention
The invention solves the technical problems of reducing positioning time delay and improving the positioning precision of the mobile terminal.
In order to solve the above technical problem, an embodiment of the present invention provides a method for positioning a mobile terminal, where the method includes: receiving a cell information list issued by a positioning server; setting the matching priority of each cell in a current cell list of the mobile terminal, wherein the current cell list comprises cell information of a serving cell and/or an adjacent cell; according to the sequence of the matching priority from high to low, sequentially matching the cell information of the current cell list with the cell information in the cell information list; the cell for the positioning calculation is determined based on the matching result.
Optionally, the setting of the matching priority of each cell in the current cell list of the mobile terminal includes:
the matching priority of the cell with the measured value is higher than that of the cell without the measured value, and the measured value is a physical signal measured value.
Optionally, the setting of the matching priority of the cells in the current cell list of the mobile terminal further includes:
and in the cells with the measured values, setting the matching priority of the cells with all clear access technology types, network numbers and all-network cell identification numbers to be higher than the matching priority of the cells with all the clear access technology types, network numbers and all-network cell identification numbers.
Optionally, the setting of the matching priority of the cells in the current cell list of the mobile terminal further includes:
setting the matching priority of the cell with the definite access technology type, network number and whole network cell identification number or the cell with the indefinite access technology type, network number and whole network cell identification number according to the measured value strength of the physical signal, wherein the higher measured value strength of the physical signal is higher than the matching priority.
Optionally, the setting of the matching priority of the cells in the current cell list of the mobile terminal further includes:
and in the neighbor cells without the measured values, setting the matching priority of the cells with all clear access technology types, network numbers and all network cell identification numbers to be higher than the matching priority of the cells with all no clear access technology types, network numbers and all network cell identification numbers.
Optionally, the determining a cell for positioning calculation based on the matching result includes:
and when the access technology types, the network numbers and the whole network cell identification numbers of the cells in the current cell list are successfully matched with the access technology types, the network numbers and the whole network cell identification numbers of the cells in the cell information list, determining the cell as a cell for positioning calculation.
Optionally, the determining a cell for positioning calculation based on the matching result includes:
and when the cell in the current cell list does not have a definite network number and a whole network cell identification number, but the access technology type, the physical frequency point and the physical cell identification number are successfully matched with the access technology type, the physical frequency point and the physical cell identification number of the cell in the cell information list, determining the cell as the cell for positioning calculation.
An embodiment of the present invention further provides a positioning apparatus for a mobile terminal, including:
the receiving unit is suitable for receiving a cell information list issued by the positioning server;
a priority setting unit, adapted to set a matching priority of each cell in a current cell list of the mobile terminal, where the current cell list includes cell information of a serving cell and/or a neighboring cell;
the matching unit is suitable for matching the cell information of the current cell list with the cell information in the cell information list in sequence from high matching priority to low matching priority;
a determining unit adapted to determine a cell for positioning calculation based on the matching result.
Optionally, the priority setting unit includes:
a first setting subunit adapted to set a matching priority of a cell with a measurement value higher than a matching priority of a cell without a measurement value, the measurement value being a physical signal measurement value.
Optionally, the priority setting unit further includes:
and the second setting subunit is suitable for setting the matching priority of the cell with all clear access technology types, network numbers and all-network cell identification numbers in the cell with the measured value to be higher than the matching priority of the cell with all clear access technology types, network numbers and all-network cell identification numbers.
Optionally, the priority setting unit further includes:
a third setting subunit, adapted to set, according to the measured value strength of the physical signal, the matching priority of the cell with the explicit access technology type, network number, and network-wide cell identification number, or the matching priority of the cell with the unspecified access technology type, network number, and network-wide cell identification number, where the matching priority with the higher measured value strength of the physical signal is higher.
Optionally, the priority setting unit further includes:
and the fourth setting subunit is adapted to set, in the neighbor cell without the measured value, the matching priority of the cell in which the access technology type, the network number, and the identification number of the whole network cell are all clear to be higher than the matching priority of the cell in which the access technology type, the network number, and the identification number of the whole network cell are not all clear.
Optionally, the determining unit includes:
and the first determining subunit is adapted to determine the cell as a cell for positioning calculation when the access technology types, network numbers and all-network cell identification numbers of the cells in the current cell list and the cells in the cell information list are successfully matched.
Optionally, the determining unit includes:
and the second determining subunit is adapted to determine the cell as a cell for positioning calculation when the cell in the current cell list does not have an explicit network number and an explicit network cell identification number, but the access technology type, the physical frequency point and the physical cell identification number are successfully matched with the access technology type, the physical frequency point and the physical cell identification number of the cell in the cell information list.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the embodiment of the invention sets the matching priority of each cell in the current cell list of the mobile terminal by receiving the cell information list sent by the positioning server, wherein the current cell list comprises the cell information of a service cell and/or an adjacent cell, the cell information of the current cell list and the cell information in the cell information list are sequentially matched according to the sequence from high to low of the matching priority, and the cell used for positioning calculation is determined based on the matching result, so that the cell which is more likely to achieve effective positioning can be preferentially matched with the cell information sent by the positioning server, the cell used for positioning can be determined more efficiently, and the positioning time delay is reduced and the positioning accuracy is improved.
Drawings
Fig. 1 is a flowchart of a positioning method of a mobile terminal in an embodiment of the present invention;
fig. 2 is a flowchart of a positioning method of another mobile terminal in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a positioning apparatus of a mobile terminal in an embodiment of the present invention.
Detailed Description
As described above, in the prior art, the E-CID positioning method based on the UE has the problems of low positioning delay and positioning accuracy.
The inventor of the present application has found that, in the prior art, mainly because of the limitation of the physical layer capability, it is impossible to perform the matching operation with the cell information in the cell list issued by the positioning server at the same time to determine the cell for measuring or reading the system message, and it is also impossible to directly measure the information of the huge number of neighboring cells or read the system message of the huge number of neighboring cells. Therefore, if not taken care of, the positioning time delay and the positioning accuracy cannot be guaranteed.
The embodiment of the invention sets the matching priority of each cell in the current cell list of the mobile terminal by receiving the cell information list sent by the positioning server, wherein the current cell list comprises the cell information of a service cell and/or an adjacent cell, matching the cell information of the current cell list with the cell information in the cell information list in sequence from high matching priority to low matching priority, and determining a cell for positioning calculation based on the matching result, thereby, the cell which is more likely to achieve effective positioning can be matched with the cell information sent by the positioning server in priority, and the cell for positioning can be determined more efficiently, further, in order to reduce the time delay of positioning and improve the accuracy of positioning, the above objects, features and advantages of the present invention can be better understood, and the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 is a flowchart of a positioning method of a mobile terminal in an embodiment of the present invention. The steps of the positioning method of the mobile terminal will be described with reference to fig. 1.
Step S101: receiving a cell information list issued by a positioning server;
step S102: setting the matching priority of each cell in a current cell list of the mobile terminal, wherein the current cell list comprises cell information of a serving cell and/or an adjacent cell;
step S103: according to the sequence of the matching priority from high to low, sequentially matching the cell information of the current cell list with the cell information in the cell information list;
step S104: the cell for the positioning calculation is determined based on the matching result.
In the specific implementation of step S101, the cell information list sent by the positioning server is included in the auxiliary positioning information, and the positioning server may send the auxiliary positioning information actively, or send the auxiliary positioning information in response to a request of the mobile terminal.
In the specific implementation of step S101, before the positioning server issues the auxiliary positioning information, the method may further include the step of receiving, by the mobile terminal, a positioning capability report request and reporting the positioning capability.
In the specific implementation of step S102, the current cell list includes cell information of a serving cell and a neighboring cell that have been currently acquired by the mobile terminal. The matching priority is used for indicating whether each cell is preferentially used for matching with the cell information list sent down in the current cell list, and the higher the matching priority is, the more preferentially the matching is.
In the prior art, when information matching is performed on a cell in the delivered cell information list, priority is not specifically set, but traversal matching is performed on the cells in the cell information list according to an arbitrary sequence (for example, based on the existing sequence). After which the matched cell is used for positioning based on the matching result.
In the embodiment of the invention, the priority sequence for matching with the cells in the issued cell list is set for each cell in the current cell list, and if the cell which can achieve effective positioning is called an effective cell, the operation of setting the matching priority can lead the cell which is more likely to be the effective cell to be matched with other cells, and then the cell information which is likely to be the effective cell is used for participating in positioning calculation. If the cell on the match has no measurement value, the cell can give priority to other cells to measure and use for positioning. Therefore, the technical scheme of the embodiment of the invention avoids consuming time to read the time of the last confirmed invalid cell, thereby reducing the positioning time delay of the mobile terminal and improving the positioning precision of the mobile terminal.
In a specific implementation of step S104, the matched cell may be used for positioning calculation. If the cell has no measurements but does not meet the current start-up conditions, the measurement can be forced.
Compared with the prior art, the method and the device improve the possibility of obtaining the cell information achieving effective positioning, further reduce the positioning time delay, and improve the positioning accuracy due to the fact that the number of effective cells obtained in the same time is increased.
The embodiment of the invention sets the matching priority of each cell in the current cell list of the mobile terminal by receiving the cell information list sent by the positioning server, wherein the current cell list comprises the cell information of a service cell and/or an adjacent cell, the cell information of the current cell list and the cell information in the cell information list are sequentially matched according to the sequence from high to low of the matching priority, and the cell used for positioning calculation is determined based on the matching result, so that the cell which is more likely to achieve effective positioning can be preferentially matched with the cell information sent by the positioning server, the cell used for positioning can be determined more efficiently, and the positioning time delay is reduced and the positioning accuracy is improved.
Fig. 2 is a flowchart of another positioning method of a mobile terminal in an embodiment of the present invention. The following is explained with reference to the steps shown in fig. 2.
Step S201: and receiving a cell information list sent by a positioning server.
Step S202: the matching priority of the cell with the measured value is higher than that of the cell without the measured value, and the measured value is a physical signal measured value.
Step S203: and matching the cell information of the current cell list with the cell information in the cell information list in sequence according to the sequence of the matching priority from high to low.
Step S204: the cell for the positioning calculation is determined based on the matching result.
In this embodiment, the specific implementation of step S201 and step S203 may refer to the corresponding description of step S in fig. 1, and is not repeated.
In this embodiment, the setting of the matching priority may be performed as shown in step S202, specifically, the setting of the matching priority may be divided into two levels, where a cell with a measured value has a higher matching priority and a cell without a measured value is located next. The measured value refers to a measurement result currently having a physical Signal, for example, the LTE standard, and the measurement result currently having a physical Signal refers to acquired Reference Signal Receiving Power (RSRP).
In another embodiment, since the measurement of the serving cell is always on, the relevant positioning information of the serving cell is relatively comprehensive, and the matching priority of the serving cell can also be set to be higher than the matching priority of the neighboring cell with the measured value, so that the serving cell can be preferentially used for positioning when the neighboring cell with the measured value does not exist in the current cell list, and a better positioning effect is achieved.
In the specific implementation of step S202, a matching priority between cells of the measured values may be further set, specifically, the matching priority of a cell with all explicit access technology types, network numbers, and all network-wide cell identification numbers is set to be higher than the matching priority of a cell with all unspecified access technology types, network numbers, and all network-wide cell identification numbers. Where "explicit" means that the relevant content is recorded or contained exactly.
In a specific implementation, in the cell with the measured value, a matching priority among cells in which an access technology type, a network number, and a whole network cell identification number are all clear may be further set, or a matching priority among cells in which the access technology type, the network number, and the whole network cell identification number are not all clear may be further set, a factor referred to in the specific setting is a measured value strength of a physical signal, and the matching priority with a higher measured value strength of the physical signal is higher.
For example, the neighbor cells having the measured values in the current cell list include neighbor cell 1, neighbor cell 2, and neighbor cell 4. Wherein:
the access technology type of the adjacent cell 1 is LTE, the network number is 46000, the identification number of the whole network unique cell is 101, the physical frequency point is 10000, the identification number of the physical cell is 1, and the RSRP is-25 dBm;
the access technology type of the adjacent cell 2 is LTE, the network number is 46000, the identification number of the whole network unique cell is 102, the physical frequency point is 10000, and the identification number of the physical cell is 2; RSRP is-35 dBm;
the access technology type of the adjacent cell 3 is LTE, the network number is not clear, and the identification number of the only cell in the whole network is not clear; the physical frequency point is 10000, the physical cell identification number is 3, and the RSRP is-24 dBm;
the access technology type of the adjacent cell 4 is LTE, the network number is not clear, and the identification number of the only cell in the whole network is not clear; the physical frequency point is 10000, the physical cell identification number is 4, and the RSRP is-34 dBm.
In the above cell, the access technology types, network numbers, and the unique cell identification numbers of the whole network of the neighboring cell 1 and the neighboring cell 2 are completely clear, so the matching priority of the neighboring cell 1 and the neighboring cell 2 is higher than that of the neighboring cell 3 and the neighboring cell 4. The RSRP strength of the neighboring cell 1 is higher than that of the neighboring cell 2, so the matching priority of the neighboring cell 1 is higher than that of the neighboring cell 2. The RSRP strength of neighbor 3 is higher than that of neighbor 4, so the matching priority of neighbor 3 is higher than that of neighbor 4. Therefore, the matching priority order in the current cell list is from high to low: neighbor 1, neighbor 2, neighbor 3, and neighbor 4.
Similarly, in the specific implementation of step S202, the matching priority between the neighbor cells without measurement values may also be set, specifically, in the neighbor cells without measurement values, the matching priority of the cell with all explicit access technology types, network numbers, and all-network cell identification numbers is set to be higher than the matching priority of the cell with all no explicit access technology types, network numbers, and all-network cell identification numbers.
In a specific implementation of step S204, a cell for positioning calculation may be determined based on the matching result.
Specifically, the method comprises the following steps:
and when the access technology types, the network numbers and the whole network cell identification numbers of the cells in the current cell list are successfully matched with the access technology types, the network numbers and the whole network cell identification numbers of the cells in the cell information list, determining the cell as a cell for positioning calculation.
And when the cell in the current cell list does not have a definite network number and a whole network cell identification number, but the access technology type, the physical frequency point and the physical cell identification number are successfully matched with the access technology type, the physical frequency point and the physical cell identification number of the cell in the cell information list, determining the cell as the cell for positioning calculation. In this case, if there is a measurement value in the cell, it is also possible to choose to use the cell for positioning calculation and then read the system message to confirm whether the positioning result is available. If the cell has no measured value, controlling to measure the physical signal of the cell and read the system message of the cell, after obtaining the measurement result of the physical signal, also using the cell to perform positioning first, and then confirming whether the positioning result is available through the read system message.
The embodiment of the invention sets the matching priority of each cell in the current cell list of the mobile terminal by receiving the cell information list sent by the positioning server, wherein the current cell list comprises the cell information of a service cell and/or an adjacent cell, the cell information of the current cell list and the cell information in the cell information list are sequentially matched according to the sequence from high to low of the matching priority, and the cell used for positioning calculation is determined based on the matching result, so that the cell which is more likely to achieve effective positioning can be preferentially matched with the cell information sent by the positioning server, the cell used for positioning can be determined more efficiently, and the positioning time delay is reduced and the positioning accuracy is improved.
Fig. 3 is a schematic structural diagram of a positioning apparatus of a mobile terminal in an embodiment of the present invention. The positioning apparatus 30 of the mobile terminal as shown in the figure may include:
a receiving unit 301, adapted to receive a cell information list sent by a positioning server;
a priority setting unit 302, adapted to set a matching priority of each cell in a current cell list of the mobile terminal, where the current cell list includes cell information of a serving cell and/or a neighboring cell;
a matching unit 303, adapted to match the cell information in the current cell list with the cell information in the cell information list in sequence from high to low according to the matching priority;
a determining unit 304 adapted to determine a cell for positioning calculation based on the matching result.
In a specific implementation, the priority setting unit 302 may include: the first setting subunit is suitable for setting the matching priority of the cell with the measured value higher than the matching priority of the neighbor cell without the measured value, and the measured value is a physical signal measured value.
In a specific implementation, the priority setting unit 302 may further include a second setting subunit, where the second setting subunit is adapted to set, in the measured cell, a matching priority of a cell with all explicit access technology types, network numbers, and all-network cell identifiers higher than a matching priority of a cell with all unspecified access technology types, network numbers, and all-network cell identifiers.
In a specific implementation, the priority setting unit 302 may further include a third setting subunit, where the third setting subunit is adapted to set, according to the measured value strength of the physical signal, a matching priority of a cell in which the access technology type, the network number, and the all-network cell identification number are explicit, or a matching priority of a cell in which the access technology type, the network number, and the all-network cell identification number are not explicit, where the matching priority is higher when the measured value strength of the physical signal is higher.
In a specific implementation, the priority setting unit 302 may further include a fourth setting subunit, where the fourth setting subunit is adapted to set, in the neighbor cell without the measurement value, a matching priority of a cell with all explicit access technology types, network numbers, and all network cell identification numbers higher than a matching priority of a cell with all no explicit access technology types, network numbers, and all network cell identification numbers.
In a specific implementation, the determining unit 303 may include a first determining subunit, adapted to determine that a cell in the current cell list is a cell for positioning calculation when the access technology type, the network number, and the network-wide cell identification number of the cell in the cell information list are successfully matched with each other.
The determining unit 303 may further include a second determining subunit, adapted to determine, when the cell in the current cell list does not have an explicit network number and an explicit network cell identification number, but an access technology type, a physical frequency point, and a physical cell identification number are successfully matched with the access technology type, the physical frequency point, and the physical cell identification number of the cell in the cell information list, that the cell is a cell used for location calculation.
The embodiment of the invention sets the matching priority of each cell in the current cell list of the mobile terminal by receiving the cell information list sent by the positioning server, wherein the current cell list comprises the cell information of a service cell and/or an adjacent cell, the cell information of the current cell list and the cell information in the cell information list are sequentially matched according to the sequence from high to low of the matching priority, and the cell used for positioning calculation is determined based on the matching result, so that the cell which is more likely to achieve effective positioning can be preferentially matched with the cell information sent by the positioning server, the cell used for positioning can be determined more efficiently, and the positioning time delay is reduced and the positioning accuracy is improved.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A method for positioning a mobile terminal, comprising:
receiving a cell information list issued by a positioning server;
setting the matching priority of each cell in a current cell list of the mobile terminal, wherein the current cell list comprises cell information of a serving cell and/or an adjacent cell;
according to the sequence of the matching priority from high to low, sequentially matching the cell information of the current cell list with the cell information in the cell information list;
determining a cell for positioning calculation based on the matching result;
the setting of the matching priority of each cell in the current cell list of the mobile terminal includes: the matching priority of the cell with the measured value is higher than that of the cell without the measured value, and the measured value is a physical signal measured value; and in the cells with the measured values, setting the matching priority of the cells with all clear access technology types, network numbers and all-network cell identification numbers to be higher than the matching priority of the cells with all the clear access technology types, network numbers and all-network cell identification numbers.
2. The method according to claim 1, wherein the setting of the matching priority of the cells in the current cell list of the mobile terminal further comprises:
setting the matching priority of the cell with the definite access technology type, network number and whole network cell identification number or the cell with the indefinite access technology type, network number and whole network cell identification number according to the measured value strength of the physical signal, wherein the higher measured value strength of the physical signal is higher than the matching priority.
3. The method according to claim 1, wherein the setting of the matching priority of the cells in the current cell list of the mobile terminal further comprises:
and in the neighbor cells without the measured values, setting the matching priority of the cells with all clear access technology types, network numbers and all network cell identification numbers to be higher than the matching priority of the cells with all no clear access technology types, network numbers and all network cell identification numbers.
4. A positioning apparatus of a mobile terminal, comprising:
the receiving unit is suitable for receiving a cell information list issued by the positioning server;
a priority setting unit, adapted to set a matching priority of each cell in a current cell list of the mobile terminal, where the current cell list includes cell information of a serving cell and/or a neighboring cell;
the matching unit is suitable for matching the cell information of the current cell list with the cell information in the cell information list in sequence from high matching priority to low matching priority;
a determining unit adapted to determine a cell for positioning calculation based on the matching result;
the priority setting unit includes: a first setting subunit adapted to set a matching priority of a cell with a measurement value higher than a matching priority of a cell without a measurement value, the measurement value being a physical signal measurement value; and the second setting subunit is suitable for setting the matching priority of the cell with all clear access technology types, network numbers and all-network cell identification numbers in the cell with the measured value to be higher than the matching priority of the cell with all clear access technology types, network numbers and all-network cell identification numbers.
5. The positioning apparatus of claim 4, wherein the priority setting unit further comprises:
a third setting subunit, adapted to set, according to the measured value strength of the physical signal, the matching priority of the cell with the explicit access technology type, network number, and network-wide cell identification number, or the matching priority of the cell with the unspecified access technology type, network number, and network-wide cell identification number, where the matching priority with the higher measured value strength of the physical signal is higher.
6. The positioning apparatus of claim 5, wherein the priority setting unit further comprises:
and the fourth setting subunit is adapted to set, in the neighbor cell without the measured value, the matching priority of the cell in which the access technology type, the network number, and the identification number of the whole network cell are all clear to be higher than the matching priority of the cell in which the access technology type, the network number, and the identification number of the whole network cell are not all clear.
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| Publication number | Publication date |
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| CN110505686A (en) | 2019-11-26 |
| CN107295630B (en) | 2019-12-03 |
| CN107295630A (en) | 2017-10-24 |
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