CN103702279A - Method and device for positioning mobile terminal inside LTE enterprise network - Google Patents
Method and device for positioning mobile terminal inside LTE enterprise network Download PDFInfo
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- CN103702279A CN103702279A CN201310373832.3A CN201310373832A CN103702279A CN 103702279 A CN103702279 A CN 103702279A CN 201310373832 A CN201310373832 A CN 201310373832A CN 103702279 A CN103702279 A CN 103702279A
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Abstract
The invention discloses a method and device for positioning a mobile terminal inside an LTE enterprise network. A plurality of LTE base stations are deployed inside the LTE enterprise network, the method comprises the followings: after entering into a target region covered with the LTE enterprise network, the mobile terminal detects signal strength representative values of the LTE base stations, searched in a current position, and the targe region comprises a plurality of sub regions; the mobile terminal obtains the signal strength representative values of the LTE base stations, detected in advance and searched in all sub regions, and by making a comparison between the signal strength representative values of the current position and the signal strength representative valves of all the sub regions, the position information of the current position is determined. According to the method and the device, provided by the invention, the problem of incapability in positioning when the mobile terminal is positioned inside a room environment can be avoided.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of LTE(Long Term Evolution, Long Term Evolution) localization method of mobile terminal in enterprise network, and the positioner of mobile terminal in a kind of LTE enterprise network.
Background technology
Enterprise network refers in enterprises, the network interconnecting for different departments, manager at different levels, employee etc.In the scope covering in enterprise network, mobile terminal is accessible enterprise network after enterprise network succeeds in registration, and can further carry out data interaction with the server end of enterprise network, to obtain corresponding network service.
Under some application scenarios, the server end of enterprise network need to manage a plurality of mobile terminals present position, at present, the locate mode of mobile terminal adopts GPS(Global Positioning System, global positioning system) location, by accepting three of sky diverse location above satellite-signals, utilize on mathematics three lines to determine that the principle of a point measures the position at mobile terminal place.
But due to indoor GPS dtr signal, when mobile terminal is positioned at indoor environment, cannot adopt GPS locate mode to position.
Summary of the invention
Technical problem to be solved by this invention is to provide the localization method of mobile terminal in a kind of LTE enterprise network, the problem that cannot locate when avoiding mobile terminal to be positioned at indoor environment.
The present invention also provides the positioner of mobile terminal in a kind of LTE enterprise network, in order to guarantee said method application and realization in practice.
In order to address the above problem, the invention discloses the localization method of mobile terminal in a kind of LTE enterprise network, in described LTE enterprise network, be deployed with a plurality of LTE base station, described method comprises:
Described mobile terminal enters behind the target area that described LTE enterprise network covers, and detects the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position, and described target area comprises a plurality of subregions;
The signal strength signal intensity characterization value of a plurality of LTE that described acquisition for mobile terminal detects in advance, that search in each sub regions base station, by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determine the positional information of current present position.
Preferably, described signal strength signal intensity characterization value is in LTE enterprise network, to characterize the Reference Signal Received Power of wireless signal strength.
Preferably, described by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determine that the step of the positional information of current present position comprises:
Extract successively in the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions, the signal strength signal intensity characterization value of corresponding same LTE base station, wherein, the signal strength signal intensity characterization value of described each sub regions comprises, the signal strength signal intensity characterization value of the LTE base station searching respectively at the boundary point of described each sub regions, wherein each boundary point at least searches the signal strength signal intensity characterization value of three LTE base stations;
The signal strength signal intensity characterization value extracting is compared, find out the subregion of the signal strength signal intensity characterization value that the number range of the signal strength signal intensity characterization value of each boundary point comprises current present position, as the positional information of described mobile terminal.
Preferably, at described mobile terminal, enter behind the target area that described LTE enterprise network covers, described method also comprises:
Described mobile terminal receives first of first predeterminated frequency that carries of the LTE base station transmission of LTE enterprise network and measures configuration messages, and carries second of the second predeterminated frequency and measure configuration messages.
Preferably, first step of measuring configuration messages of carrying the first predeterminated frequency that the LTE base station of mobile terminal reception LTE enterprise network sends comprises:
Described mobile terminal is in the process of a LTE base station of registering LTE enterprise network, receive the first measurement configuration messages that carries the first predeterminated frequency that described base station sends, described first to measure the first predeterminated frequency that configuration messages carries be described mobile terminal and being connected when the Idle state of LTE base station, records the frequency of described positional information;
After the step of the described positional information of determining current present position, described method also comprises:
When described mobile terminal and LTE base station be connected in Idle state time, described mobile terminal records described positional information according to described the first predeterminated frequency;
Described method also comprises:
Described mobile terminal with being connected from Idle state transfers connected state to of LTE base station, receive described LTE base station according to the feedback message of the request transmission of the server end that described mobile terminal is monitored, and to described server end, send described positional information through described LTE base station.
Preferably, second step of measuring configuration messages of carrying the second predeterminated frequency that the LTE base station of mobile terminal reception LTE enterprise network sends comprises:
Described mobile terminal with LTE base station be connected in connected state time, receive the second measurement configuration messages that carries described the second predeterminated frequency that described base station sends, the second predeterminated frequency that described the second measurement configuration messages carries is that described mobile terminal reports the frequency of described positional information to the server end that described mobile terminal is monitored;
Described method also comprises:
Described mobile terminal, according to described the second predeterminated frequency, sends described positional information through described LTE base station to described server end.
Preferably, described the first predeterminated frequency or the second predeterminated frequency are configured described LTE base station by the server end that described mobile terminal is monitored.
Preferably, described first measures configuration messages or second measures configuration messages, the second module that realizes core net function in described LTE base station realizes the first module forwards of base station functions in described LTE base station, and to described mobile terminal, sends the first measurement configuration messages or the second measurement configuration messages by described the first module;
Described first measures configuration messages or second measures configuration messages, and the first predeterminated frequency or the second predeterminated frequency that the server end that described mobile terminal is monitored are arranged by described the second module, add in default collocation strategy and generate.
Preferably, a plurality of LTE base station comprises a crucial base station that is positioned at the predeterminated position of described target area, and described method also comprises:
Record the maximum signal characterization value of described crucial base station, and in conjunction with the signal strength signal intensity characterization value of preset described crucial base station, generate the calibration value to signal strength signal intensity characterization value;
After the step of the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position in described detection, described method also comprises:
According to described calibration value, the signal strength signal intensity characterization value of a plurality of LTE base station is revised.
Preferably, the described step that records the maximum signal characterization value of described crucial base station comprises:
When described mobile terminal to search is during to the signal of described crucial base station, record the signal strength signal intensity characterization value of described crucial base station and a plurality of signal strength signal intensity characterization values from the process that greatly diminish large from little change;
In a plurality of signal strength signal intensity characterization values of record, extract a maximum value as the maximum signal characterization value of described crucial base station.
The present invention also provides the positioner of mobile terminal in a kind of LTE enterprise network, is deployed with a plurality of LTE base station in described LTE enterprise network, and described device comprises:
Characterization value detection module, enters behind the target area that described LTE enterprise network covers for described mobile terminal, detects the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position, and described target area comprises a plurality of subregions;
Characterization value acquisition module, the signal strength signal intensity characterization value of a plurality of LTE base station of detecting in advance for described acquisition for mobile terminal, search in each sub regions;
Characterization value comparing module, for by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determines the positional information of current present position.
Preferably, described characterization value comparing module comprises:
Characterization value extracts submodule, for extracting successively the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions, the signal strength signal intensity characterization value of corresponding same LTE base station, wherein, the signal strength signal intensity characterization value of described each sub regions comprises, the signal strength signal intensity characterization value of the LTE base station searching respectively at the boundary point of described each sub regions, wherein each boundary point at least searches the signal strength signal intensity characterization value of three LTE base stations;
Characterization value comparison sub-module, for the signal strength signal intensity characterization value extracting is compared, find out the subregion of the signal strength signal intensity characterization value that the number range of the signal strength signal intensity characterization value of each boundary point comprises current present position, as the positional information of described mobile terminal.
Preferably, described device also comprises:
Frequency receiver module, first of the first predeterminated frequency that carries that receives the LTE base station transmission of LTE enterprise network for described mobile terminal is measured configuration messages, and carries second of the second predeterminated frequency and measure configuration messages.
Preferably, a plurality of LTE base station comprises a crucial base station that is positioned at the predeterminated position of described target area, and described device also comprises:
Maximum characterization value logging modle, for recording the maximum signal characterization value of described crucial base station;
Calibration value generation module, for the signal strength signal intensity characterization value of the described crucial base station in conjunction with preset, generates the calibration value to signal strength signal intensity characterization value;
Described device also comprises:
Characterization value correcting module, for revising the signal strength signal intensity characterization value of a plurality of LTE base station according to described calibration value.
Compared with prior art, the present invention has the following advantages:
According to the embodiment of the present invention, in being deployed with the enterprise network of a plurality of LTE base station, after mobile terminal is entered target area that enterprise network covers, the signal strength signal intensity characterization value of a plurality of LTE base station that detection searches, and compare with the signal strength signal intensity characterization value of each sub regions of the target area of detecting in advance, by comparison result, determine the positional information of mobile terminal, than adopting in background technology the GPS cannot be in the indoor problem positioning, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, the region that in the embodiment of the present invention, enterprise network covers can be indoor can be also outdoor, the problem that cannot locate while having avoided mobile terminal to be positioned at indoor environment.
And, adopt the embodiment of the present invention, the server end that mobile terminal is managed can be by LTE base station to mobile terminal configuration predeterminated frequency, when mobile terminal and LTE base station be connected in connected state time according to predeterminated frequency reporting position information to server end, or when Idle state, according to predeterminated frequency record position information, after transferring connected state to, report server end, thereby make server end can know the positional information of mobile terminal, be convenient to the position of mobile terminal and action to manage.
In addition, the embodiment of the present invention also adopts and comprises the integrated base station of realizing base station and core net function, and than existing LTE network side framework, without encapsulating in addition, interface protocol is to fixed form separately, and data transmission procedure is more simple.
Accompanying drawing explanation
Fig. 1 is the flow chart of the localization method embodiment 1 of mobile terminal in a kind of LTE enterprise network of the present invention;
Fig. 2 is the flow chart of the localization method embodiment 2 of mobile terminal in a kind of LTE enterprise network of the present invention;
Fig. 3 is the flow chart of the localization method embodiment 3 of mobile terminal in a kind of LTE enterprise network of the present invention;
Fig. 4 is the structured flowchart of the positioner embodiment 1 of mobile terminal in a kind of LTE enterprise network of the present invention;
Fig. 5 is the structured flowchart of the positioner embodiment 2 of mobile terminal in a kind of LTE enterprise network of the present invention;
Fig. 6 is the structured flowchart of the positioner embodiment 3 of mobile terminal in a kind of LTE enterprise network of the present invention;
Fig. 7 is the schematic diagram of the target area that in an example of the embodiment of the present invention, LTE enterprise network covers.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
In prior art, two kinds of locate modes of many employings position mobile terminal, and a kind of is the GPS location of more employing, but due to indoor GPS dtr signal, when mobile terminal is positioned at indoor environment, cannot adopt GPS locate mode to position; Another kind is architecture, by measuring the TOA(Time of Arrival of the down-bound pilot frequency signal of different base station, due in) or calculate the TDOA(Time Difference of Arrival of the down-bound pilot frequency signal of different base station, the time of advent is poor), and in conjunction with the coordinate of base station, adopt triangle formula algorithm for estimating, calculate the latitude and longitude information of mobile terminal.Although adopt in this way, indoor, can position, this locate mode does not provide corresponding mechanism to make not have server end to obtain the positional information of mobile terminal, cannot realize the management of server end to mobile terminal yet.
Based on above prior art, one of core idea of the embodiment of the present invention is, in being deployed with the enterprise network of a plurality of LTE base station, mobile terminal is determined the positional information of mobile terminal by the signal strength signal intensity characterization value of a plurality of LTE base station, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, therefore, avoided the problem that cannot locate when mobile terminal is positioned at indoor environment in first kind of way, and pass through LTE base station to mobile terminal configuration predeterminated frequency, by mobile terminal reporting positional information to server, be convenient to the position of mobile terminal and action to manage.
With reference to figure 1, show the flow chart of the localization method embodiment 1 of mobile terminal in a kind of LTE enterprise network of the present invention, in LTE enterprise network, be deployed with a plurality of LTE base station, specifically can comprise the following steps:
In the embodiment of the present invention, mobile terminal can be supported LTE communication standard, enterprise network refers to the enterprise network based on LTE technology, in LTE enterprise network, dispose a plurality of LTE base station, when guaranteeing that mobile terminal is located at each position of the target area that LTE enterprise network covered, can search the signal of community that a plurality of base station is administered simultaneously.
Behind mobile terminal target approach region, the signal strength signal intensity characterization value of a plurality of LTE base station that can search in current residing position probing, diverse location in institute's coverage goal region, base station, the signal strength signal intensity size searching is not identical, and signal strength signal intensity characterization value can characterize the power of the cell signal of base station.
The signal strength signal intensity characterization value of a plurality of LTE that step 102, acquisition for mobile terminal detect in advance, that search in each sub regions base station, by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determine the positional information of current present position.
In embodiments of the present invention, target area is divided into a plurality of subregions, and detects in advance the signal strength signal intensity characterization value of a plurality of LTE base station searching in each sub regions.At mobile terminal, detect after the signal strength signal intensity characterization value of current present position, the signal strength signal intensity characterization value of each sub regions and the signal strength signal intensity characterization value of current present position that detect are in advance compared, to determine the current residing position of mobile terminal.
A plurality of base station signal strength that the embodiment of the present invention adopts the current position of mobile terminal to detect, in the target area that enterprise network covers, the signal strength signal intensity of each sub regions compares, determine the current position of mobile terminal, than adopting in background technology the GPS cannot be in the indoor problem positioning, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, the region that in the embodiment of the present invention, enterprise network covers can be indoor can be also outdoor, the problem that cannot locate while having avoided mobile terminal to be positioned at indoor environment.
Further preferred, in the embodiment of the present invention, signal strength signal intensity characterization value can be for characterizing the Reference Signal Received Power (RSRP of wireless signal strength in LTE enterprise network, Reference Signal Receiving Power), being in LTE network, to represent one of the key parameter of wireless signal strength and physical layer measurement demand, is all RE(resource particle of carrying reference signal in certain symbol) on the mean value of the signal power that receives.
Further preferred, in the embodiment of the present invention, the signal strength signal intensity characterization value of each sub regions comprises, the signal strength signal intensity characterization value of the LTE base station searching respectively at the boundary point of each sub regions.Based on three lines, determine the principle of a bit, adopt at least three signal strength signal intensity characterization values just can determine the position at the current place of mobile terminal, therefore, at each boundary point of subregion, at least search the signal strength signal intensity characterization value of three LTE base stations, so that mobile terminal is positioned.
In concrete realization, in target area, each sub regions can be any region with boundary point, and for example, when subregion is rectangular region, boundary point refers to four angles of rectangular region; When subregion is delta-shaped region, boundary point should be leg-of-mutton three summits mutually; When subregion is other polygonal regions, boundary point should be polygonal summit mutually.Subregion can be also other regions with boundary point in irregular shape, and, the shape of each sub regions or size can be identical, can be not identical yet, the concrete mode that target area is divided into a plurality of subregions can be according to concrete applied environment and demand, and the present invention does not limit this.
With reference to Fig. 7, provided the schematic diagram of the target area that in an example of the embodiment of the present invention, LTE enterprise network covers, in target area, be deployed with three base stations, be respectively eNB1, eNB2 and eNB3, in target area, mark off three sub regions, be respectively starbuck, offoce1 and meeting room, three sub regions are rectangular region, take meeting room as example, comprise that four angles are designated as respectively A, B, C and D, at four angles, searched respectively the signal of three base stations, according to eNB1, eNB2 and eNB3 sort, the signal strength signal intensity characterization value of this subregion is included in the RSRP value (100 that A angle searches,-84,-80), the RSRP value (104 searching at B angle,-80,-84), the RSRP value (102 searching at C angle,-86,-78), the RSRP value (106 searching at D angle,-82,-82).The position of three arrow points that wherein, draw base station is the position at the current place of mobile terminal.
Further preferred, in the embodiment of the present invention, the contrast of the signal strength signal intensity based on the current position of mobile terminal and the signal strength signal intensity of subregion, can draw mobile terminal affiliated subregion, particularly, the step of determining the positional information of current present position can comprise:
Sub-step S11, extract successively in the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions the signal strength signal intensity characterization value of corresponding same LTE base station.
Sub-step S12, the signal strength signal intensity characterization value extracting is compared, find out the subregion of the signal strength signal intensity characterization value that the number range of the signal strength signal intensity characterization value of each boundary point comprises current present position, as the positional information of mobile terminal.
When comparing, signal strength signal intensity characterization value for same base station is compared, in the signal strength signal intensity characterization value of current present position, extract a signal strength signal intensity characterization value that base station is corresponding, accordingly, in the signal strength signal intensity characterization value of each sub regions, also extract signal strength signal intensity characterization value corresponding to this base station.While comparing by this class value, find out at least one subregion of the signal strength signal intensity characterization value that the number range of the signal strength signal intensity characterization value of each boundary point comprises current present position, then successively signal strength signal intensity characterization value corresponding to other base station also contrasted, finally find a sub regions, this subregion is in each base station, and the number range of the corresponding signal strength signal intensity characterization value of each boundary point has all comprised the signal strength signal intensity characterization value of current present position.
In concrete realization, the value at each angle can be arranged according to the order of default base station, so, when comparing, can extract successively in order first group, second group ... until the value of last group also can, for different base station sets identifiers, be added the identifier of corresponding base station to signal strength signal intensity characterization value, when comparison, extraction possesses the signal strength signal intensity characterization value of identical identifier and compares.
Take Fig. 7 as example, when subregion meeting room and current position are compared, the signal strength signal intensity characterization value that the mobile terminal current location E of take is ordered is (102,-83,-80) be example, while comparing, can first extract four angles in meeting room and be respectively-100 in RSRP value corresponding to eNB1,-104,-102,-106, according to these four values, can show that the signal strength range of eNB1 in meeting room is-106～-100, can show that thus E point is within the scope of this, continuation also compares eNB2 and signal strength signal intensity corresponding to eNB3, the signal strength range that draws eNB2 is-86～-80, the signal strength range of eNB3 is-84～-78, signal strength signal intensity characterization value-83 that E point is corresponding and-80 are respectively also in scope, the number range of signal strength signal intensity characterization value that is four angles of meeting room comprises the signal strength signal intensity characterization value that E is ordered, therefore show that E point is positioned at subregion meeting room.
In concrete realization, while comparing, the signal strength signal intensity characterization value of current position can be compared with each sub regions respectively successively, when signal strength range corresponding to certain base station of subregion do not comprise the signal strength signal intensity characterization value of this current position, illustrate that mobile terminal is not in this subregion; Also can be first for a base station, find out respectively each sub regions in the signal strength range of each boundary point of this base station, the subregion of getting rid of the signal strength signal intensity characterization value that does not comprise this current position, than a kind of front method, can accelerate the speed of comparison, determine quickly the position of mobile terminal.
Further preferred, in the embodiment of the present invention, the step of the signal strength signal intensity characterization value of a plurality of LTE that acquisition for mobile terminal detects in advance, that search in each sub regions base station comprises:
The signal strength signal intensity characterization value of each sub regions that the target area of sub-step S21, the local storage of mobile terminal extraction comprises.
Or, the map of the target area that sub-step S22, mobile terminal are installed from this locality, the signal strength signal intensity characterization value of each sub regions that extraction target area comprises.
The signal strength signal intensity characterization value detecting in advance at subregion can be kept at mobile terminal this locality, also can carry out associated with the map of target area, be kept in the map of mobile terminal, accordingly, when extracting, the signal strength values of local storage can be extracted, also signal strength signal intensity characterization value can be in map, extracted.
With reference to figure 2, show the flow chart of the localization method embodiment 2 of mobile terminal in a kind of LTE enterprise network of the present invention, in LTE enterprise network, be deployed with a plurality of LTE base station, specifically can comprise the following steps:
First of the first predeterminated frequency that carries that the LTE base station of step 201, reception LTE enterprise network sends is measured configuration messages, and carries second of the second predeterminated frequency and measure configuration messages.
Different from last embodiment, in the present embodiment, mobile terminal also need to report determined positional information according to default frequency record or to the server end that mobile terminal is managed.
Predeterminated frequency is in server end setting configuration to LTE base station, and LTE base station is measured configuration messages by the first measurement configuration messages or second again and is handed down to mobile terminal.
Particularly, first step of measuring configuration messages of carrying the first predeterminated frequency that the LTE base station of reception LTE enterprise network sends can comprise:
Sub-step S31, mobile terminal are in the process of a LTE base station of registering LTE enterprise network, receive the first measurement configuration messages that carries predeterminated frequency that base station sends, first to measure predeterminated frequency that configuration messages carries be mobile terminal and being connected when the Idle state of LTE base station, the frequency of record position information.
LTE(Long Term Evolution, Long Term Evolution) system has been introduced MDT(Minimization of Drive-Tests, minimum road test) technology.MDT measurement comprises real-time MDT(Immediate MDT, IMM MDT) and log(daily record) MDT.
The configuration of Log MDT be by LTE base station in mobile terminal registration process, issue Loggede Measurement Configuration message (daily record measurement configuration messages) and give mobile terminal, only when mobile terminal enters the IDLE(free time) just start measurement during state.Mobile terminal enters after IDLE state, independently completes the behavior that corresponding MDT is measured control by mobile terminal.
In the embodiment of the present invention, the first measurement configuration messages is Loggede Measurement Configuration message, at mobile terminal, registering in the process of LTE enterprise network and be handed down to mobile terminal, by adding therein the first predeterminated frequency, control the frequency that is connected the positional information of mobile terminal record location when Idle state of mobile terminal and LTE base station.
Mobile terminal enters behind the target area that LTE enterprise network covers, and receiving second step of measuring configuration messages of carrying the second predeterminated frequency that the LTE base station of LTE enterprise network sends can comprise:
Sub-step S32, mobile terminal with LTE base station be connected in connected state time, receive the second measurement configuration messages that carries predeterminated frequency that base station sends, the predeterminated frequency that the second measurement configuration messages carries is that mobile terminal is to the frequency of the server end reporting position information that mobile terminal is monitored.
Different from Log MDT, IMM MDT is based on existing RRM(Radio Resource Management, and Radio Resource is measured) measure the mechanism that reports.When mobile terminal is during in connected state, IMM MDT implements to measure configuration by network control completely and reports with result, measures content and mode and by Measconfig(, measures configuration by LTE base station) cell is handed down to mobile terminal.
In the embodiment of the present invention, the second measurement configuration messages is Measconfig cell, mobile terminal and LTE base station be connected in connected state time, LTE is handed down to base station the Measconfig cell of interpolation the second predeterminated frequency to mobile terminal, controls mobile terminal to the frequency of server end reporting position information.
The signal strength signal intensity characterization value of a plurality of LTE that step 203, acquisition for mobile terminal detect in advance, that search in each sub regions base station, by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determine the positional information of current present position.
Mobile terminal is received the first predeterminated frequency of measuring in configuration, after determining the positional information of current present position, according to the first predeterminated frequency, positional information is carried out to record at mobile terminal, waits for after network is notified and reporting.
When mobile terminal with being connected from Idle state transfers connected state to of LTE base station, server end sends message to LTE base station, the positional information of request mobile terminal, LTE base station receives after message, to mobile terminal, send feedback message (UE Information Request/Response), request mobile terminal home position information, mobile terminal, after receiving this request, sends positional information by LTE base station to server end.
When mobile terminal is during always in connected state, can to server end, feed back definite positional information according to the second predeterminated frequency, thereby make server end can know the position of mobile terminal.In concrete realization, server end can record or preserve the positional information of mobile terminal after obtaining positional information, also can according to positional information, draw the event trace of mobile terminal, to realize, mobile terminal is managed.
In concrete realization, the first predeterminated frequency and the second predeterminated frequency can be set according to concrete application demand, can be same numerical value, also can be unequal.
Further preferably, in the embodiment of the present invention, LTE base station can be for comprising the first module that realizes base station functions and the integrated base station of realizing the second module of core net function.
In the prior art, LTE communication system mainly consists of end side and network side, and the network side framework of LTE system is mainly comprised of core net (Evolved Packet Core, EPC) two parts of base station and evolution.Wherein, base station is separated with the geographical position between EPC, EPC is arranged in the machine room of mobile operator, by special-purpose return network, be connected with base station, EPC comprises a plurality of network elements, as mobile management entity (Mobility Management Entity, MME), service webmaster (Serving Gateway, S-GW) etc.
Existing network side framework complexity very, network element entity in EPC is numerous, thereby cause respective network elements in base station and EPC to communicate by special-purpose communication interface, wherein, communicate by letter by S1-MME interface with MME in base station, owing to needing to meet the agreement of respective communication interface, transmitting procedure more complicated in data transmission.
In MDT measurement mechanism, MME is in mobile terminal registration process or be connected into behind the community of base station administration, by the Loggede Measurement Configuration message that comprises MDT measurement configuration parameter (first measures configuration messages) or Measconfig cell (second measures configuration messages), send to base station, indication base station is further issued to mobile terminal.
As can be seen here, according to existing LTE network side framework, MME sends MDT and measures configuration parameter to the transmitting procedure more complicated of base station.In the embodiment of the present invention, the function of base station and core net is combined in a hardware entities, the first module and the second module have respectively the function of base station and core net, and without encapsulating in addition, interface protocol is to fixed form separately, and data transmission procedure is more simple.
Accordingly, first of the embodiment of the present invention is measured configuration messages or second and is measured configuration messages, by the second module that realizes core net function, to the first module forwards, to send first by the first module to mobile terminal, measures configuration messages or the second measurement configuration messages.Wherein, first measures configuration messages or second measures configuration messages, and the first predeterminated frequency or the second predeterminated frequency that the server end that mobile terminal is monitored are arranged by the second module, add in default collocation strategy and generate.
Adopt behind integrated base station, by the second module, by the first predeterminated frequency or the second predeterminated frequency, added in default collocation strategy, generate corresponding first and measure configuration messages or the second measurement configuration messages, then be forwarded to the first module, by the first module forwards to mobile terminal.
In sum, according to the embodiment of the present invention, in being deployed with the enterprise network of a plurality of LTE base station, after mobile terminal is entered target area that enterprise network covers, the signal strength signal intensity characterization value of a plurality of LTE base station that detection searches, and compare with the signal strength signal intensity characterization value of each sub regions of the target area of detecting in advance, by comparison result, determine the positional information of mobile terminal, than adopting in background technology the GPS cannot be in the indoor problem positioning, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, the region that in the embodiment of the present invention, enterprise network covers can be indoor can be also outdoor, the problem that cannot locate while having avoided mobile terminal to be positioned at indoor environment.
And, adopt the embodiment of the present invention, the server end that mobile terminal is managed can be by LTE base station to mobile terminal configuration predeterminated frequency, when mobile terminal and LTE base station be connected in connected state time according to predeterminated frequency reporting position information to server end, or when Idle state, according to predeterminated frequency record position information, after transferring connected state to, report server end, thereby make server end can know the positional information of mobile terminal, be convenient to the position of mobile terminal and action to manage.
In addition, the embodiment of the present invention also adopts and comprises the integrated base station of realizing base station and core net function, and than existing LTE network side framework, without encapsulating in addition, interface protocol is to fixed form separately, and data transmission procedure is more simple.
With reference to figure 3, show the flow chart of the localization method embodiment 3 of mobile terminal in a kind of LTE enterprise network of the present invention, in LTE enterprise network, be deployed with a plurality of LTE base station, specifically can comprise the following steps:
The maximum signal characterization value of step 301, recorded key base station, and in conjunction with the signal strength signal intensity characterization value of preset crucial base station, generate the calibration value to signal strength signal intensity characterization value.
Different from the first two embodiment is, in the present embodiment, also need the signal strength signal intensity characterization value that current location is detected to calibrate, calibration according to being that the signal strength signal intensity characterization value of crucial base station and the signal strength signal intensity characterization value of standard detecting compares, by the maximum signal characterization value of recorded key base station, with the signal strength signal intensity characterization value of preset crucial base station do poor, as the calibration value to signal strength signal intensity characterization value.
A plurality of LTE base station comprises a crucial base station that is positioned at the predeterminated position of target area, in a plurality of base stations that crucial base station can be disposed in enterprise network, select one of them, preferably, the calibration value to signal strength signal intensity characterization value can for example,, on mobile terminal just the position of Entry Firm net (doorway of target area), can be determined so as early as possible in the position of crucial base station.
Preferably, the step of the maximum signal characterization value of recorded key base station comprises:
Sub-step S41, when mobile terminal to search is during to the signal of crucial base station, the signal strength signal intensity characterization value of recorded key base station and a plurality of signal strength signal intensity characterization values from the process that greatly diminish large from little change.
Sub-step S42, in a plurality of signal strength signal intensity characterization values of record, extract a maximum value as the maximum signal characterization value of crucial base station.
Mobile terminal carries out, behind target area, can searching the signal of a plurality of base stations, when searching the signal of crucial base station, the signal strength signal intensity characterization value of crucial base station is carried out to record.In the process of mobile terminal near crucial base station, signal strength signal intensity characterization value can slowly become greatly, and in the process away from crucial base station gradually, signal strength signal intensity characterization value can slowly diminish, the maximum signal characterization value that wherein maximum value is crucial base station.Therefore, signal strength signal intensity characterization value that can recorded key base station and a plurality of signal strength signal intensity characterization values from the process that greatly diminish large from little change, find out wherein maximum value, and the signal strength signal intensity characterization value of this value and preset crucial base station is compared.
After detecting a plurality of signal strength signal intensity characterization values of the current present position of mobile terminal, need to calibrate according to calibration value definite in step 301, during calibration, if the crucial base station maximum signal characterization value that calibration value is record and preset signal strength signal intensity characterization value is poor, the value that can treat correction deducts the correction of calibration value; If the crucial base station maximum signal characterization value that calibration value is record and preset signal strength signal intensity characterization value is poor, the value that can treat correction adds the correction of calibration value.For example, the maximum signal characterization value of record is-104, and preset value is-103, calibration value can be 1, while calibrating, signal strength signal intensity characterization value to be calibrated is done to the correction that adds 1, calibration value can be also-1, while calibrating, signal strength signal intensity characterization value to be calibrated is done to the correction that subtracts 1.
By the step that signal strength signal intensity characterization value is revised, can make signal strength signal intensity characterization value more accurate, improve the accuracy that mobile terminal is positioned.
The signal strength signal intensity characterization value of a plurality of LTE that step 304, acquisition for mobile terminal detect in advance, that search in each sub regions base station, by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determine the positional information of current present position.
Mobile terminal this locality can be provided with map, after determining positional information, can on map, to current position, indicate, and makes user can know the position at own place; The movable destination that the user that also can receive according to mobile terminal determines, draws the movement reference path from current location to movable destination, thereby can instruct user's activity direction.
According to the embodiment of the present invention, in being deployed with the enterprise network of a plurality of LTE base station, after mobile terminal is entered target area that enterprise network covers, the signal strength signal intensity characterization value of a plurality of LTE base station that detection searches, and compare with the signal strength signal intensity characterization value of each sub regions of the target area of detecting in advance, by comparison result, determine the positional information of mobile terminal, than adopting in background technology the GPS cannot be in the indoor problem positioning, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, the region that in the embodiment of the present invention, enterprise network covers can be indoor can be also outdoor, the problem that cannot locate while having avoided mobile terminal to be positioned at indoor environment.
And the present embodiment can make signal strength signal intensity characterization value more accurate by the step that signal strength signal intensity characterization value is revised, improve the accuracy that mobile terminal is positioned.
For embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
With reference to figure 4, show the structured flowchart of the positioner embodiment 1 of mobile terminal in a kind of LTE enterprise network of the present invention, specifically can comprise with lower module:
Characterization value detection module 401, enters behind the target area that LTE enterprise network covers for mobile terminal, detects the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position, and target area comprises a plurality of subregions.
Characterization value acquisition module 402, the signal strength signal intensity characterization value of a plurality of LTE base station of detecting in advance for acquisition for mobile terminal, search in each sub regions.
Characterization value comparing module 403 is connected with characterization value acquisition module 402 with characterization value detection module 401, characterization value comparing module 403 is for the signal strength signal intensity characterization value of the current present position by characterization value detection module 401 is detected, the signal strength signal intensity characterization value of each sub regions of obtaining with characterization value acquisition module 402 is compared, and determines the positional information of current present position.
Further preferably, signal strength signal intensity characterization value is in LTE enterprise network, to characterize the Reference Signal Received Power of wireless signal strength.
Further preferably, the signal strength signal intensity characterization value of each sub regions can comprise, the signal strength signal intensity characterization value of the LTE base station searching respectively at the boundary point of each sub regions, and wherein each boundary point at least searches the signal strength signal intensity characterization value of three LTE base stations.
Further preferably, the positional information of mobile terminal comprises mobile terminal affiliated subregion, and characterization value comparing module comprises:
Characterization value extracts submodule, for extracting successively the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions, the signal strength signal intensity characterization value of corresponding same LTE base station.
Characterization value comparison sub-module is extracted submodule with characterization value and is connected, characterization value comparison sub-module compares for characterization value being extracted to the signal strength signal intensity characterization value of submodule extraction, find out the subregion of the signal strength signal intensity characterization value that the number range of the signal strength signal intensity characterization value of each boundary point comprises current present position, as the positional information of mobile terminal.
Further preferably, characterization value acquisition module comprises:
The local submodule that extracts, the signal strength signal intensity characterization value of each sub regions comprising for the local target area of storing of mobile terminal extraction.
Or map extracts submodule, the map of the target area of installing from this locality for mobile terminal, the signal strength signal intensity characterization value of each sub regions that extraction target area comprises.
A plurality of base station signal strength that the embodiment of the present invention adopts the current position of mobile terminal to detect, in the target area that enterprise network covers, the signal strength signal intensity of each sub regions compares, determine the current position of mobile terminal, than adopting in background technology the GPS cannot be in the indoor problem positioning, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, the region that in the embodiment of the present invention, enterprise network covers can be indoor can be also outdoor, the problem that cannot locate while having avoided mobile terminal to be positioned at indoor environment.
With reference to figure 5, show the structured flowchart of the positioner embodiment 2 of mobile terminal in a kind of LTE enterprise network of the present invention, specifically can comprise with lower module:
Frequency receiver module 501, first of the first predeterminated frequency that carries that receives the LTE base station transmission of LTE enterprise network for mobile terminal is measured configuration messages, and carries second of the second predeterminated frequency and measure configuration messages.
Characterization value detection module 502, enters behind the target area that LTE enterprise network covers for mobile terminal, detects the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position, and target area comprises a plurality of subregions.
Characterization value acquisition module 503, the signal strength signal intensity characterization value of a plurality of LTE base station of detecting in advance for acquisition for mobile terminal, search in each sub regions.
Characterization value comparing module 504 is connected with characterization value acquisition module 503 with characterization value detection module 502, for comparing by the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions that characterization value acquisition module 503 obtains that characterization value detection module 502 is detected, determine the positional information of current present position.
Positional information logging modle 505 is connected with characterization value comparing module 504 with frequency receiver module 501, positional information logging modle 505 for when mobile terminal and LTE base station be connected in Idle state time, the first predeterminated frequency that mobile terminal receives according to frequency receiver module 501 records the definite positional information of characterization value comparing module 504.
Feedback message receiver module 506, for mobile terminal with being connected from Idle state transfers connected state to of LTE base station, receive the feedback message that LTE base station sends according to the request of the server end that mobile terminal is monitored.
Positional information feedback module 507 is connected with feedback message receiver module 506 with positional information logging modle 505, and positional information feedback module 507 is for sending the positional information of positional information logging modle 505 records to server end through LTE base station.
Positional information reporting module 508 is connected with characterization value comparing module 504 with frequency receiver module 501, the second predeterminated frequency that positional information reporting module 508 receives according to frequency receiver module 501 for mobile terminal, sends the definite positional information of characterization value comparing module 504 through LTE base station to server end.
In sum, according to the embodiment of the present invention, in being deployed with the enterprise network of a plurality of LTE base station, after mobile terminal is entered target area that enterprise network covers, the signal strength signal intensity characterization value of a plurality of LTE base station that detection searches, and compare with the signal strength signal intensity characterization value of each sub regions of the target area of detecting in advance, by comparison result, determine the positional information of mobile terminal, than adopting in background technology the GPS cannot be in the indoor problem positioning, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, the region that in the embodiment of the present invention, enterprise network covers can be indoor can be also outdoor, the problem that cannot locate while having avoided mobile terminal to be positioned at indoor environment.
And, adopt the embodiment of the present invention, the server end that mobile terminal is managed can be by LTE base station to mobile terminal configuration predeterminated frequency, when mobile terminal and LTE base station be connected in connected state time according to predeterminated frequency reporting position information to server end, or when Idle state, according to predeterminated frequency record position information, after transferring connected state to, report server end, thereby make server end can know the positional information of mobile terminal, be convenient to the position of mobile terminal and action to manage.
In addition, the embodiment of the present invention also adopts and comprises the integrated base station of realizing base station and core net function, and than existing LTE network side framework, without encapsulating in addition, interface protocol is to fixed form separately, and data transmission procedure is more simple.
With reference to figure 6, show the structured flowchart of the positioner embodiment 3 of mobile terminal in a kind of LTE enterprise network of the present invention, specifically can comprise with lower module:
Maximum characterization value logging modle 601, for the maximum signal characterization value of recorded key base station.
Calibration value generation module 602 is connected with maximum characterization value logging modle 601, calibration value generation module 602 is the signal strength signal intensity characterization value with preset crucial base station for the maximum signal characterization value in conjunction with maximum characterization value logging modle 601 records, the calibration value of generation to signal strength signal intensity characterization value.
Characterization value detection module 603, enters behind the target area that LTE enterprise network covers for mobile terminal, detects the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position, and target area comprises a plurality of subregions.
Characterization value correcting module 604 is connected with characterization value detection module 603 with calibration value generation module 602, and the signal strength signal intensity characterization value of a plurality of LTE base station that characterization value correcting module 604 detects characterization value detection module 603 for the calibration value generating according to calibration value generation module 602 is revised.
Characterization value acquisition module 605, the signal strength signal intensity characterization value of a plurality of LTE base station of detecting in advance for acquisition for mobile terminal, search in each sub regions.
Characterization value comparing module 606 is connected with characterization value acquisition module 604 with characterization value correcting module 604, characterization value comparing module 605, for by the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions that characterization value acquisition module 605 obtains revised through characterization value correcting module 604 are compared, is determined the positional information of current present position.
Map indicates module 607 and is connected with characterization value comparing module 606, and map indicates module 607, for mobile terminal, the definite positional information of characterization value comparing module 606 is indicated in to the local map of installing.
And/or path drawing module 608 is connected with characterization value comparing module 606, path drawing module 608, for receiving the setting to movable destination, is drawn movement reference path according to the destination of the definite positional information of characterization value comparing module 606 and setting.
Further preferably, maximum characterization value logging modle 601 comprises:
Characterization value change records submodule, for when mobile terminal to search arrives the signal of crucial base station, the signal strength signal intensity characterization value of recorded key base station is a plurality of signal strength signal intensity characterization values greatly and from the process diminishing greatly from little change.
Maximum is extracted submodule and is connected with characterization value change records submodule, and maximum is extracted submodule and extracted a maximum value as the maximum signal characterization value of crucial base station for a plurality of signal strength signal intensity characterization values at characterization value change records submodule record.
According to the embodiment of the present invention, in being deployed with the enterprise network of a plurality of LTE base station, after mobile terminal is entered target area that enterprise network covers, the signal strength signal intensity characterization value of a plurality of LTE base station that detection searches, and compare with the signal strength signal intensity characterization value of each sub regions of the target area of detecting in advance, by comparison result, determine the positional information of mobile terminal, than adopting in background technology the GPS cannot be in the indoor problem positioning, because the signal of LTE base station can not be subject to the impact of indoor and outdoor environment, the region that in the embodiment of the present invention, enterprise network covers can be indoor can be also outdoor, the problem that cannot locate while having avoided mobile terminal to be positioned at indoor environment.
And the present embodiment can make signal strength signal intensity characterization value more accurate by the step that signal strength signal intensity characterization value is revised, improve the accuracy that mobile terminal is positioned.
Because described device embodiment is substantially corresponding to the embodiment of the method shown in earlier figures 1-3, therefore not detailed part in the description of the present embodiment can, referring to the related description in previous embodiment, just not repeat at this.
The present invention can be used in numerous general or special purpose computingasystem environment or configuration.For example: personal computer, server computer, handheld device or portable set, plate equipment, multicomputer system, the system based on microprocessor, set top box, programmable consumer-elcetronics devices, network PC, minicom, mainframe computer, comprise distributed computing environment (DCE) of above any system or equipment etc.
The present invention can describe in the general context of the computer executable instructions of being carried out by computer, for example program module.Usually, program module comprises the routine carrying out particular task or realize particular abstract data type, program, object, assembly, data structure etc.Also can in distributed computing environment (DCE), put into practice the present invention, in these distributed computing environment (DCE), by the teleprocessing equipment being connected by communication network, be executed the task.In distributed computing environment (DCE), program module can be arranged in the local and remote computer-readable storage medium that comprises memory device.
In this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Localization method to mobile terminal in a kind of LTE enterprise network provided by the present invention above, and, in a kind of LTE enterprise network, the positioner of mobile terminal is described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (14)
1. a localization method for mobile terminal in LTE enterprise network, is characterized in that, in described LTE enterprise network, be deployed with a plurality of LTE base station, described method comprises:
Described mobile terminal enters behind the target area that described LTE enterprise network covers, and detects the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position, and described target area comprises a plurality of subregions;
The signal strength signal intensity characterization value of a plurality of LTE that described acquisition for mobile terminal detects in advance, that search in each sub regions base station, by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determine the positional information of current present position.
2. method according to claim 1, is characterized in that, described signal strength signal intensity characterization value is in LTE enterprise network, to characterize the Reference Signal Received Power of wireless signal strength.
3. method according to claim 1, is characterized in that, described by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, and determines that the step of the positional information of current present position comprises:
Extract successively in the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions, the signal strength signal intensity characterization value of corresponding same LTE base station, wherein, the signal strength signal intensity characterization value of described each sub regions comprises, the signal strength signal intensity characterization value of the LTE base station searching respectively at the boundary point of described each sub regions, wherein each boundary point at least searches the signal strength signal intensity characterization value of three LTE base stations;
The signal strength signal intensity characterization value extracting is compared, find out the subregion of the signal strength signal intensity characterization value that the number range of the signal strength signal intensity characterization value of each boundary point comprises current present position, as the positional information of described mobile terminal.
4. method according to claim 1, is characterized in that, at described mobile terminal, enters behind the target area that described LTE enterprise network covers, and described method also comprises:
Described mobile terminal receives first of first predeterminated frequency that carries of the LTE base station transmission of LTE enterprise network and measures configuration messages, and carries second of the second predeterminated frequency and measure configuration messages.
5. method according to claim 4, is characterized in that, first step of measuring configuration messages of carrying the first predeterminated frequency that mobile terminal receives the LTE base station transmission of LTE enterprise network comprises:
Described mobile terminal is in the process of a LTE base station of registering LTE enterprise network, receive the first measurement configuration messages that carries the first predeterminated frequency that described base station sends, described first to measure the first predeterminated frequency that configuration messages carries be described mobile terminal and being connected when the Idle state of LTE base station, records the frequency of described positional information;
After the step of the described positional information of determining current present position, described method also comprises:
When described mobile terminal and LTE base station be connected in Idle state time, described mobile terminal records described positional information according to described the first predeterminated frequency;
Described method also comprises:
Described mobile terminal with being connected from Idle state transfers connected state to of LTE base station, receive described LTE base station according to the feedback message of the request transmission of the server end that described mobile terminal is monitored, and to described server end, send described positional information through described LTE base station.
6. method according to claim 4, is characterized in that, second step of measuring configuration messages of carrying the second predeterminated frequency that mobile terminal receives the LTE base station transmission of LTE enterprise network comprises:
Described mobile terminal with LTE base station be connected in connected state time, receive the second measurement configuration messages that carries described the second predeterminated frequency that described base station sends, the second predeterminated frequency that described the second measurement configuration messages carries is that described mobile terminal reports the frequency of described positional information to the server end that described mobile terminal is monitored;
Described method also comprises:
Described mobile terminal, according to described the second predeterminated frequency, sends described positional information through described LTE base station to described server end.
7. method according to claim 4, is characterized in that, described the first predeterminated frequency or the second predeterminated frequency are configured described LTE base station by the server end that described mobile terminal is monitored.
8. method according to claim 4, it is characterized in that, described first measures configuration messages or second measures configuration messages, the second module that realizes core net function in described LTE base station realizes the first module forwards of base station functions in described LTE base station, and to described mobile terminal, sends the first measurement configuration messages or the second measurement configuration messages by described the first module;
Described first measures configuration messages or second measures configuration messages, and the first predeterminated frequency or the second predeterminated frequency that the server end that described mobile terminal is monitored are arranged by described the second module, add in default collocation strategy and generate.
9. method according to claim 1, is characterized in that, a plurality of LTE base station comprises a crucial base station that is positioned at the predeterminated position of described target area, and described method also comprises:
Record the maximum signal characterization value of described crucial base station, and in conjunction with the signal strength signal intensity characterization value of preset described crucial base station, generate the calibration value to signal strength signal intensity characterization value;
After the step of the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position in described detection, described method also comprises:
According to described calibration value, the signal strength signal intensity characterization value of a plurality of LTE base station is revised.
10. method according to claim 9, is characterized in that, the described step that records the maximum signal characterization value of described crucial base station comprises:
When described mobile terminal to search is during to the signal of described crucial base station, record the signal strength signal intensity characterization value of described crucial base station and a plurality of signal strength signal intensity characterization values from the process that greatly diminish large from little change;
In a plurality of signal strength signal intensity characterization values of record, extract a maximum value as the maximum signal characterization value of described crucial base station.
In 11. 1 kinds of LTE enterprise network, the positioner of mobile terminal, is characterized in that, in described LTE enterprise network, be deployed with a plurality of LTE base station, described device comprises:
Characterization value detection module, enters behind the target area that described LTE enterprise network covers for described mobile terminal, detects the signal strength signal intensity characterization value of a plurality of LTE base station searching in current present position, and described target area comprises a plurality of subregions;
Characterization value acquisition module, the signal strength signal intensity characterization value of a plurality of LTE base station of detecting in advance for described acquisition for mobile terminal, search in each sub regions;
Characterization value comparing module, for by the signal strength signal intensity characterization value of the signal strength signal intensity characterization value of current present position and each sub regions is compared, determines the positional information of current present position.
12. devices according to claim 11, is characterized in that, described characterization value comparing module comprises:
Characterization value extracts submodule, for extracting successively the signal strength signal intensity characterization value of current present position and the signal strength signal intensity characterization value of each sub regions, the signal strength signal intensity characterization value of corresponding same LTE base station, wherein, the signal strength signal intensity characterization value of described each sub regions comprises, the signal strength signal intensity characterization value of the LTE base station searching respectively at the boundary point of described each sub regions, wherein each boundary point at least searches the signal strength signal intensity characterization value of three LTE base stations;
Characterization value comparison sub-module, for the signal strength signal intensity characterization value extracting is compared, find out the subregion of the signal strength signal intensity characterization value that the number range of the signal strength signal intensity characterization value of each boundary point comprises current present position, as the positional information of described mobile terminal.
13. devices according to claim 11, is characterized in that, also comprise:
Frequency receiver module, first of the first predeterminated frequency that carries that receives the LTE base station transmission of LTE enterprise network for described mobile terminal is measured configuration messages, and carries second of the second predeterminated frequency and measure configuration messages.
14. devices according to claim 11, is characterized in that, a plurality of LTE base station comprises a crucial base station that is positioned at the predeterminated position of described target area, and described device also comprises:
Maximum characterization value logging modle, for recording the maximum signal characterization value of described crucial base station;
Calibration value generation module, for the signal strength signal intensity characterization value of the described crucial base station in conjunction with preset, generates the calibration value to signal strength signal intensity characterization value;
Described device also comprises:
Characterization value correcting module, for revising the signal strength signal intensity characterization value of a plurality of LTE base station according to described calibration value.
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