CN100466784C - Method for positioning user terminal and user terminal - Google Patents
Method for positioning user terminal and user terminal Download PDFInfo
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- CN100466784C CN100466784C CNB2006101397396A CN200610058248A CN100466784C CN 100466784 C CN100466784 C CN 100466784C CN B2006101397396 A CNB2006101397396 A CN B2006101397396A CN 200610058248 A CN200610058248 A CN 200610058248A CN 100466784 C CN100466784 C CN 100466784C
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Abstract
The invention relates to a method for positioning the user terminal and relative user terminal. Wherein, said method comprises: user terminal obtains and stores the distance information between the base stations of stayed section and nearby section; the user terminal, in IDLE condition, measures the synchronous channel of stayed section and nearby section, to obtains the distance change information between said base stations, according to the stored distance information and the measured distance change information, to fix the position range of user terminal. With said invention, the user terminal can be positioned accurately, when the user terminal is in IDLE condition.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of method and user terminal that user terminal is positioned.
Background technology
GSM (Globe System of Mobile Communication, Global Link mobile communcations system) and all there is higher requirement user location based on the GT800 on the GSM basis (800M frequency range) trunking communication.
Be example with the mobile phone below, describe the measuring process of user terminal.
User mobile phone in network process or the cell reselection process, at first will obtain FCCH (frequency rectification channel) in start, utilize this FCCH rectification frequency, then according to the synchronizing sequence synchronising base station that comprises among the SCH (synchronizing channel).Finish synchronously mobile phone and base station, and after the acquisition system message, this mobile phone can resident this base station.At this moment, mobile phone do not have and the base station between distance parameter.
Then, mobile phone do the position more new technological process or dedicated channel take flow process, by carrying out alternately with the base station, obtain the range information TA (Timing Advance) between mobile phone and the base station, TA and mobile phone BIT (binary digit) corresponding relation of eating dishes without rice or wine is 1 BIT 3.69us, about 550m.
Mobile phone will be in IDLE (free time) state after dedicated channel takies end, at this moment, mobile phone can not obtain the TA value of base station notice in the process that moves, and mobile phone is by real-time synchronising base station BCCH (Broadcast Control Channel) channel, assurance and base station synchronous.
Mobile phone all at the real-time level of measuring the adjacent area, is used to switch and the sub-district gravity treatment at IDLE state and dedicated channel status.Concrete measuring process is: mobile phone obtains by system message needs the adjacent area frequency point information measured, then, mobile phone be tuned to this frequency obtain the BCCH level, and SCH (synchronizing channel) synchronously obtains the BSIC (BCC) of this sub-district.Arrange according to the size of BCCH level each adjacent area that will measure at last.When switching, select as required with the sub-district gravity treatment.
Location technology among GSM and the GT800 mainly comprises at present: GPS (global positioning system), AGPS (assistant GPS location), E-OTD (enhancement mode observation time difference location), CELLID (cell identification), CELLID+TA (cell identification binding time lead) and CELLID+TA+RX (cell identification binding time lead and incoming level) etc.
Above-mentioned various location technology can be divided into needs to be increased external equipment and not to need to increase by two kinds of implementations of external equipment.
First kind of implementation needs the localization method of additional equipment, and this localization method comprises following location technology:
The GPS location.This localization method requires the terminal of user terminal to increase the GPS receiver, is used to receive gps satellite signal.Because the shielding action of building generally is difficult to receive gps signal indoor, so the GPS location is not suitable for indoor positioning.Because this localization method needs terminal to increase the GPS receiver, cause terminal volume to increase, cost increases.
The A-GPS location.This localization method carries out the GPS location by network assistance, can save positioning time, but has the problem of above-mentioned GPS location equally.
The E-OTD location.This localization method needs the whole network to increase the location network element newly synchronously or in base station side, and the cost height is safeguarded inconvenient.
Above-mentioned three kinds of locate modes that need additional equipment though the positioning accuracy height is influenced by the GPS receiver sensitivity, can not receive in building.Locating speed is slow, the equipment price costliness.Terminal need increase the GPS receiving equipment, when needs are revised software, all needs to make amendment at network side and end side.
Second kind of main mode do not need to increase external equipment, utilizes the localization method of Internet resources, and this localization method comprises location technologies such as CELLID, CELLID+TA and CELLID+TA+RX.
The above-mentioned various localization method that does not need to increase external equipment, positioning accuracy is limited.Wherein to be subjected to environmental impact big in the RX measurement, can not be related with distance exactly, and error is big.The advantage of this localization method is when needs are revised software, does not need to make amendment in end side.
In a word, above-mentioned existing localization method all is difficult to realize user terminal is carried out cheapness, locatees fast and accurately, does not make full use of Internet resources.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of method and user terminal that user terminal is positioned, thereby when can be implemented in user terminal and being in the IDLE state, user terminal is accurately located.
The objective of the invention is to be achieved through the following technical solutions:
A kind of user terminal comprises: winning post information acquisition module, variable in distance information acquisition module and position determination module, wherein:
Winning post information acquisition module: be used for position more new technological process and cell reselection process by user terminal, obtain the persistent district of user terminal and the winning post information of adjacent area, and the winning post information of obtaining is passed to variable in distance information acquisition module and position determination module;
Variable in distance information acquisition module: be used for when user terminal is in idle IDLE state, measure the persistent district of user terminal and the synchronizing channel of adjacent area, the winning post information that passes over winning post information acquisition module is benchmark, calculate in real time the variable in distance information between the base station of base station, user terminal and adjacent area of user terminal and persistent district, and the variable in distance information of obtaining is passed to position determination module;
Locating channel is monitored module: be used for the persistent district of monitoring users terminal and the locating channel of adjacent area, obtain the persistent district of user terminal and the current location information of adjacent area, the positional information of obtaining is passed to position determination module;
Position determination module: the variable in distance information that winning post information that passes over according to winning post information acquisition module and variable in distance information acquisition module pass over, determine the current distance between user terminal and persistent district and the neighbor base station, according to the persistent district of this current distance information and user terminal and the positional information of adjacent area, by calculating the position range information of determining user terminal.
Described user terminal comprises:
Winning post information is preserved module: be used for the winning post information that winning post information acquisition module obtains is preserved, and the winning post information of preserving is passed to position determination module and variable in distance information acquisition module.
Described position determination module comprises:
Position computation module: according to the current distance information between the base station of base station, user terminal and the adjacent area of user terminal and persistent district, and the positional information of the persistent district of user terminal and adjacent area, go out the position range information of user terminal by the algorithm computation of setting;
The feedback information module: the current distance information of the base station of base station, user terminal and each adjacent area of the user terminal that obtains and this sub-district is passed to winning post information acquisition module, and winning post information acquisition module is with the new winning post information of this current distance information as this sub-district and each adjacent area.
Described winning post information comprises: user terminal is apart from the Timing Advance TA value information of cell base station, cell ID, sub-district the window's position through big degree and sub-district synchronizing channel.
A kind of method that user terminal is positioned increases locating channel or increase system message in global system for mobile communications in cluster communication system, comprising:
A, user terminal obtain and preserve the winning post information of the base station of its persistent district and adjacent area by described locating channel or system message, with and the positional information of persistent district and adjacent area;
B, user terminal are when idle IDLE state, measure the synchronizing channel of persistent district and adjacent area, variable in distance information between the base station of acquisition and persistent district and adjacent area, positional information according to winning post information, its persistent district and the adjacent area of described preservation, and the variable in distance information of measuring, determine the position range of user terminal.
Described steps A specifically comprises:
User terminal obtains and preserve the winning post information of the base station of its persistent district and adjacent area, and this winning post information comprises: user terminal is apart from the Timing Advance TA value information of base station, cell ID, sub-district the window's position through big degree and sub-district synchronizing channel.
Described steps A specifically comprises:
A1, in cluster communication system, increase locating channel;
After A2, the user terminal start, make more new technological process of normal position, obtain the winning post information of persistent district, then, user terminal is initiated cell reselection process, obtains the winning post information of each adjacent area by described locating channel.
Described steps A 2 specifically comprises:
A21, user terminal obtain the positional information that comprises latitude and longitude information of this sub-district and each adjacent area by locating channel, user terminal is according to the level of each adjacent area, sorted in each adjacent area, initiate the reuse adoption process of each adjacent area successively, obtain the locating channel of each adjacent area and describe;
A22, user terminal are described according to described locating channel, enter locating channel and send up access calibration request message to this neighbor base station, receive this neighbor base station by the targeted message that described locating channel returns, and obtain the winning post information of this adjacent area.
Described steps A specifically comprises:
A3, in global system for mobile communications, increase system message;
After A4, the user terminal start, make more new technological process of normal position, obtain the winning post information of persistent district, then, user terminal is initiated cell reselection process, obtains the winning post information of each adjacent area by described system message.
Described steps A 4 specifically comprises:
A41, user terminal obtain the positional information that comprises latitude and longitude information of this sub-district and each adjacent area by system message, user terminal is according to the level of each adjacent area, sorted in each adjacent area, initiate the reuse adoption process of each adjacent area successively, obtain the system message of each adjacent area;
A42, user terminal send up access calibration request message according to described system message to described neighbor base station, receive the targeted message that described neighbor base station returns, and obtain the winning post information of this adjacent area.
Described method also comprises:
When user terminal with part or all of winning post information dropout, user terminal is after the start flow process finishes, again carry out the adjacent area reuse adoption process, in reuse adoption process, the adjacent area of TA winning post has been arranged, not gravity treatment is obtained winning post information to this sub-district, the sub-district that does not have the TA winning post, user terminal is according to signal level, and this sub-district of gravity treatment obtains the winning post information of this sub-district.
Described step B specifically comprises:
User terminal is when the IDLE state, with this sub-district of described acquisition and the winning post information of each adjacent area is benchmark, variable in distance information Δ TA between real-time calculating and this sub-district and each neighbor base station, according to this Δ TA and winning post information, determine and this sub-district and each neighbor base station between distance, and then the position range of definite user terminal.
Described step B specifically comprises:
B1, user terminal are when the IDLE state, TA with this sub-district of obtaining is the winning post benchmark, in moving process, the BCCH channel of broadcast control channel of synchronous resident base station, the demodulation training sequence, calculate the variable in distance Δ TA of user terminal and resident base station in real time, and then, determine the current distance=TA+ Δ TA between user terminal and the resident base station;
B2, user terminal detect the level of each adjacent area in real time, TAn with each adjacent area is the winning post benchmark, pass through synchronizing sequence, confirm the current synchronizing sequence and the deviation of winning post, measure the deviation of demodulating data, calculate the variable in distance Δ TAn of user terminal and each neighbor base station in real time, and then, determine the current distance=TAn+ Δ TAn between user terminal and each neighbor base station;
B3, user terminal are according to the current distance between the base station that obtain and this sub-district and each adjacent area, and the positional information of this sub-district and each adjacent area, by calculating the position range of determining user terminal.
Described step B3 specifically comprises:
Current distance between the base station of user terminal basis and this sub-district, determine that user terminal is being the center with resident base station, least radius is that the width of current distance is in the annulus scope of 550m, according to and the base station of each adjacent area between current distance, determine that user terminal is the center in the base station with each adjacent area, least radius is that the width of current distance is in the boundary scope between the annulus of 550m.
Described step B also comprises:
User terminal is done the current location of the synchronizing channel window of current distance, this sub-district and each adjacent area between the base station between the base station of the user terminal that obtains and this sub-district, user terminal and each adjacent area to upgrade and is preserved, as the winning post information of calculating next time.
Described step B also comprises:
When user terminal is calculating in its position range process, the common factor of finding certain sub-district and other sub-district is the intersection range between the sub-district not, and user terminal reselects to this sub-district, obtains the winning post information of this sub-district again.
As seen from the above technical solution provided by the invention, the present invention is by utilizing locating channel or the system message that increases, user terminal is measured the synchronizing channel of this sub-district and each adjacent area at one's leisure, calculate and the base station of this sub-district and each adjacent area between TA and Δ TA.Thereby when can be implemented in user terminal and being in the IDLE state, under the situation that does not increase external equipment, the GSM/GT800 user terminal is accurately located, positioning accuracy reaches the precision of E-OTD.
Description of drawings
Fig. 1 is the structural representation of the embodiment of user terminal of the present invention;
Fig. 2 is the process chart of the embodiment of the method for the invention;
Fig. 3 is the schematic diagram according to the offset information of this sub-district of winning post information acquisition;
Fig. 4 is the schematic diagram according to the offset information of each adjacent area of winning post information acquisition of each adjacent area;
Fig. 5 is the TA (new) between the base station of user terminal basis and this sub-district, determines the schematic diagram of the position range of user terminal;
The precision schematic diagram of Fig. 6 for user terminal being positioned according to 4 base stations;
Fig. 7 is according to the method for the invention, the handling process schematic diagram after the user terminal start;
Fig. 8 is according to the method for the invention, the handling process schematic diagram of user terminal cell reselection process.
Embodiment
The invention provides a kind of method and user terminal that user terminal is positioned, core of the present invention is: by increasing locating channel or system message, increase user terminal under the IDLE state to the tracking of TA (range information between user terminal and the base station), do not have under the mutual situation at user terminal and base station, can guarantee that user terminal obtains TA information yet.
Describe the present invention in detail below in conjunction with accompanying drawing, the structure of the embodiment of user terminal of the present invention comprises as shown in Figure 1 as lower module:
Locating channel is monitored module: be used for the persistent district of monitoring users terminal and the locating channel of adjacent area, obtain the persistent district of user terminal and the current location information of adjacent area, the positional information of obtaining is passed to position determination module.
Winning post information acquisition module: be used for after the user terminal start, position by user terminal is new technological process and cell reselection process more, obtain the persistent district of user terminal and the winning post information TAn of adjacent area, this winning post information TAn comprises the Timing Advance TA value information between the base station of user terminal and persistent district and adjacent area.And the winning post information of obtaining is passed to winning post information preserve module.This sub-district that mark post information acquisition module also passes over position determination module and the current distance information of each adjacent area are as the new mark post information of this sub-district and each adjacent area.Described winning post information comprises: user terminal is apart from the Timing Advance TA value information of cell base station, cell ID, sub-district the window's position through big degree and sub-district synchronizing channel.
Winning post information is preserved module: be used for the winning post information that winning post information acquisition module passes over is preserved, and pass to position determination module and variable in distance information acquisition module.
Variable in distance information acquisition module: be used for when user terminal is in the IDLE state, measure the persistent district of user terminal and the synchronizing channel of adjacent area, preserving the winning post information that module passes over winning post information is benchmark, calculates the variable in distance information Δ TAn between the base station of user terminal and persistent district and adjacent area in real time.And the variable in distance information Δ TAn that obtains passed to position determination module.
Position determination module: preserve the variable in distance information Δ TAn that winning post information TAn that module passes over and described variable in distance information acquisition module pass over according to winning post information, determine the current distance=TAn+ Δ TAn between user terminal and persistent district and each neighbor base station.According to the persistent district of this current distance information and user terminal and the positional information of each adjacent area, go out the position range information of user terminal by the algorithm computation of setting.Position determination module also passes to mark post information acquisition module with the user terminal of acquisition and the current distance information of this sub-district and each adjacent area.Position determination module comprises: position computation module and feedback information module.
Wherein, position computation module: according to the current distance information between user terminal and persistent district and the neighbor base station, and the positional information of the persistent district of user terminal and adjacent area, go out the position range information of user terminal by the algorithm computation of setting;
Wherein, feedback information module: the user terminal of acquisition and the current distance information of this sub-district and each adjacent area are passed to mark post information acquisition module, and mark post information acquisition module is with the new mark post information of this current distance information as this sub-district and each adjacent area.
Message processing module: be used for carrying out the mutual of various message with the persistent district of user terminal and the base station of each adjacent area.
The process chart of the embodiment of the method for the invention comprises the steps: as shown in Figure 2
Step 2-1, in the GT800 system, increase locating channel, perhaps, increase system message at gsm system.
The present invention need increase a locating channel in each sub-district of GT800 system, the main effect of this locating channel is as follows:
By this locating channel, the base station sends the positional information of this sub-district and each adjacent area to user terminal descending, comprising information such as the CELLID of sub-district and longitude and latitude, the TA value of informing user terminal and this sub-district.
By this locating channel, user terminal sends the calibration request message to the base station, reports the position information of user's terminal that calculates up.
Above-mentioned locating channel can be realized by newly-increased system message in other gsm system except that the GT800 system.
After the start of step 2-2, user terminal, make more new technological process of position, obtain this subdistrict position winning post information, the position winning post information that obtains each adjacent area by the locating channel that increases or the RACH channel in the gsm system.
The latitude and longitude information of base station has just been determined when base station construction.The geographical location information that locating channel or the system message of base station by above-mentioned increase sends this sub-district is to user terminal.User terminal obtains the geographical location information of adjacent area by the sub-district gravity treatment, and these geographical location information are kept in its position, adjacent area relation table.
Handling process after the user terminal start in the present invention as shown in Figure 7.After the user terminal start, at first make more new technological process of position,, can obtain the CELL-ID and the TA value of persistent district by carrying out alternately with resident base station.
Then, as shown in Figure 7, user terminal is according to the level and the latitude and longitude information of each adjacent area, to each adjacent area sort (sub-district of identical longitude and latitude is sub-district, cobasis station, to not contribution of location, not gravity treatment).Then, in order to obtain the TA value of each adjacent area, user terminal is initiatively initiated the reuse adoption process of each adjacent area respectively successively.Gravity treatment is each time finished, can obtain the CELL-ID of certain adjacent area, afterwards, according to this CELL-ID, send (up access calibration request) message by locating channel or the RACH channel in the gsm system that increases in the GT800 system to this neighbor base station, receive this neighbor base station by the targeted message that the AGCH channel in locating channel or the gsm system returns, obtain this adjacent area TA value.
As shown in Figure 7, after the reuse adoption process of all sub-districts was finished, user terminal can obtain information such as the window's position of cell ID, longitude and latitude, synchronizing channel of this sub-district and each adjacent area and TA value.Then, user terminal returns former persistent district.This sub-district that user terminal obtains and the TA value information of each adjacent area will be as the winning post information of user terminal location.User terminal is kept at this winning post information in its internal memory.This winning post information is as shown in table 1.
Table 1: the winning post information of user terminal
If after user terminal shutdown or the power down, part or all of winning post information dropout, user terminal carries out the reuse adoption process of above-mentioned adjacent area again after the start flow process finishes.The handling process of user terminal cell reselection process as shown in Figure 8 among the present invention.Specifically describe as follows:
In reuse adoption process, user terminal at first by carrying out alternately with new resident base station, can obtain the CELL-ID and the TA value of new persistent district.Then, define the adjacent area of TA winning post and do not have the adjacent area of TA winning post.For the adjacent area that the TA winning post is arranged, not gravity treatment is obtained TA to this sub-district.For the adjacent area that does not have the TA winning post, user terminal is according to signal level, and this sub-district of gravity treatment obtains the winning post information such as CELL-ID, TA of this sub-district.
Step 2-3, user terminal are benchmark with this sub-district of acquisition and the winning post information of each adjacent area when the IDLE state, in real time the TA (new) between calculating and this sub-district and each neighbor base station.
User terminal is in IDLE state following time after dedicated channel takies end.As shown in Figure 7 and Figure 8, at first the TA with this sub-district of obtaining is the winning post benchmark, in moving process, and the BCCH channel of synchronous resident base station, the demodulation training sequence calculates the variable in distance of user terminal and resident base station in real time, i.e. Δ TA.This Δ TA is the offset information of this sub-district.So, the TA (new) between user terminal and the resident base station=TA+ Δ TA.
The schematic diagram of above-mentioned offset information according to this sub-district of winning post information acquisition as shown in Figure 3.User terminal is TA A ground apart from base station distance, and user terminal roams into B ground, apart from the base station apart from TA (new)=TA+ Δ TA.
As shown in Figure 7 and Figure 8, in order to realize that user terminal is carried out more accurate localization, also need to calculate the Δ TA and the TA (new) of each adjacent area of user terminal.
According to the measuring process of above-mentioned user terminal, user terminal detects the level of each adjacent area in real time under the IDLE state, synchronously the system message of each adjacent area.In synchronizing process, be benchmark with the TAn of this adjacent area of obtaining previously, by synchronizing sequence, confirm the current synchronizing sequence and the deviation of winning post.Measure the deviation of demodulating data, can determine the deviation delta TAn of each adjacent area TAn value, obtain apart from each adjacent area apart from TAn (new)=TAn+ Δ TAn.This acquisition process does not need the user terminal gravity treatment to each adjacent area.
TA (new) value after this sub-district that user terminal will obtain and the adjustment of each adjacent area skew and synchronizing channel position of window are done to upgrade and are preserved, as the winning post that calculates next time.
The schematic diagram of the offset information of above-mentioned each adjacent area of winning post information acquisition according to each adjacent area as shown in Figure 4.
Step 2-4, user terminal according to the TA (new) between the base station that obtain and this sub-district and each adjacent area, and the positional information of this sub-district and each adjacent area, are determined the position of user terminal when the IDLE state.
As shown in Figure 7 and Figure 8, user terminal is according to the TA (new) between the base station that obtain and this sub-district and each adjacent area, and the position information such as longitude and latitude of this sub-district and each adjacent area, by simple algorithm, can obtain the positional information of user terminal.Computational methods can be described below with reference to GSM 0371:
TA between the base station of user terminal basis and this sub-district (new) can determine that user terminal is being the center with resident base station, and radius is that the width of TA (new) is in the annulus scope of 550m.As shown in Figure 5.After user terminal moved to position B from position A, user terminal had been the center with resident base station, and least radius is that the width of TA is in the annulus scope of 550m.According to and the base station of each adjacent area between TAn (new), can determine that user terminal is being the center with each adjacent area, radius is that the width of TAn (new) is in the boundary scope between the annulus of 550m.As shown in Figure 6.
Fig. 6 represents the precision schematic diagram that user terminal positioned according to 4 base stations.As can be seen from Figure 5, the positioning accuracy of a base station is 550 meters a garden ring, and the positioning accuracy of two base stations is that two length of sides are 550 meters approximate rhombus; Three base stations navigate to an irregular polygon, and error is about 200 meters; 4 base stations can be positioned at the black region of about 100 meters of errors.Specific implementation and actual environment have relation.
According to said method, realized when the IDLE state, user terminal accurately being located.Subsequently, user terminal reports the base station by locating channel or system message with the positional information that obtains.
In above-mentioned positioning flow to user terminal, the winning post information of sub-district is very important, if certain sub-district winning post obtains mistake, can cause position error.Therefore, in order to guarantee the correctness of winning post information, in user terminal calculating location process, the common factor of finding certain sub-district and other sub-districts is not at the intersection point of most sub-districts, just think that the winning post of this sub-district obtains mistake, user terminal reselects to this sub-district and initiates position requests, obtains the correct winning post information of this sub-district.
User terminal is after entering the dedicated channel pattern, and the adjacent area winning post data according to preserving also can realize measuring and calculating its current position.At this moment,, switched to new sub-district, the winning post information of meeting lost part adjacent area if switching has taken place user terminal.Because under the dedicated channel pattern, user terminal can not gravity treatment obtains new winning post data to the adjacent area of new sub-district, will cause the decline of positioning accuracy.User terminal finishes the dedicated channel pattern, get back to the IDLE state after, the adjacent area winning post information that can search for new sub-district again improves positioning accuracy.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (16)
1, a kind of user terminal is characterized in that, comprising: winning post information acquisition module, variable in distance information acquisition module and position determination module, wherein:
Winning post information acquisition module: be used for position more new technological process and cell reselection process by user terminal, obtain the persistent district of user terminal and the winning post information of adjacent area, and the winning post information of obtaining is passed to variable in distance information acquisition module and position determination module;
Variable in distance information acquisition module: be used for when user terminal is in idle IDLE state, measure the persistent district of user terminal and the synchronizing channel of adjacent area, the winning post information that passes over winning post information acquisition module is benchmark, calculate in real time the variable in distance information between the base station of base station, user terminal and adjacent area of user terminal and persistent district, and the variable in distance information of obtaining is passed to position determination module;
Locating channel is monitored module: be used for the persistent district of monitoring users terminal and the locating channel of adjacent area, obtain the persistent district of user terminal and the current location information of adjacent area, the positional information of obtaining is passed to position determination module;
Position determination module: the variable in distance information that winning post information that passes over according to winning post information acquisition module and variable in distance information acquisition module pass over, determine the current distance between user terminal and persistent district and the neighbor base station, according to the persistent district of this current distance information and user terminal and the positional information of adjacent area, by calculating the position range information of determining user terminal.
2, user terminal according to claim 1 is characterized in that, described user terminal comprises:
Winning post information is preserved module: be used for the winning post information that winning post information acquisition module obtains is preserved, and the winning post information of preserving is passed to position determination module and variable in distance information acquisition module.
3, user terminal according to claim 1 is characterized in that, described position determination module comprises:
Position computation module: according to the current distance information between the base station of base station, user terminal and the adjacent area of user terminal and persistent district, and the positional information of the persistent district of user terminal and adjacent area, go out the position range information of user terminal by the algorithm computation of setting;
The feedback information module: the current distance information of the base station of base station, user terminal and each adjacent area of the user terminal that obtains and this sub-district is passed to winning post information acquisition module, and winning post information acquisition module is with the new winning post information of this current distance information as this sub-district and each adjacent area.
4, user terminal according to claim 1 is characterized in that, described winning post information comprises: user terminal is apart from the window's position of Timing Advance TA value information, cell ID, sub-district longitude and latitude and the sub-district synchronizing channel of cell base station.
5, a kind of method that user terminal is positioned is characterized in that, increases locating channel or increase system message in cluster communication system in global system for mobile communications, comprising:
A, user terminal obtain and preserve the winning post information of the base station of its persistent district and adjacent area by described locating channel or system message, with and the positional information of persistent district and adjacent area;
B, user terminal are when idle IDLE state, measure the synchronizing channel of persistent district and adjacent area, variable in distance information between the base station of acquisition and persistent district and adjacent area, positional information according to winning post information, its persistent district and the adjacent area of described preservation, and the variable in distance information of measuring, determine the position range of user terminal.
6, method according to claim 5 is characterized in that, described steps A specifically comprises:
User terminal obtains and preserves the winning post information of the base station of its persistent district and adjacent area, and this winning post information comprises: user terminal is apart from the window's position of Timing Advance TA value information, cell ID, sub-district longitude and latitude and the sub-district synchronizing channel of base station.
7, method according to claim 6 is characterized in that, described steps A specifically comprises:
A1, in cluster communication system, increase locating channel;
After A2, the user terminal start, make more new technological process of normal position, obtain the winning post information of persistent district, then, user terminal is initiated cell reselection process, obtains the winning post information of each adjacent area by described locating channel.
8, method according to claim 7 is characterized in that, described steps A 2 specifically comprises:
A21, user terminal obtain the positional information that comprises latitude and longitude information of this sub-district and each adjacent area by locating channel, user terminal is according to the level of each adjacent area, sorted in each adjacent area, initiate the reuse adoption process of each adjacent area successively, obtain the locating channel of each adjacent area and describe;
A22, user terminal are described according to described locating channel, enter locating channel and send up access calibration request message to this neighbor base station, receive this neighbor base station by the targeted message that described locating channel returns, and obtain the winning post information of this adjacent area.
9, method according to claim 6 is characterized in that, described steps A specifically comprises:
A3, in global system for mobile communications, increase system message;
After A4, the user terminal start, make more new technological process of normal position, obtain the winning post information of persistent district, then, user terminal is initiated cell reselection process, obtains the winning post information of each adjacent area by described system message.
10, method according to claim 9 is characterized in that, described steps A 4 specifically comprises:
A41, user terminal obtain the positional information that comprises latitude and longitude information of this sub-district and each adjacent area by system message, user terminal is according to the level of each adjacent area, sorted in each adjacent area, initiate the reuse adoption process of each adjacent area successively, obtain the system message of each adjacent area;
A42, user terminal send up access calibration request message according to described system message to described neighbor base station, receive the targeted message that described neighbor base station returns, and obtain the winning post information of this adjacent area.
11, method according to claim 6 is characterized in that, described method also comprises:
When user terminal with part or all of winning post information dropout, user terminal is after the start flow process finishes, again carry out the adjacent area reuse adoption process, in reuse adoption process, the adjacent area of TA winning post has been arranged, not gravity treatment is obtained winning post information to this sub-district, the sub-district that does not have the TA winning post, user terminal is according to signal level, and this sub-district of gravity treatment obtains the winning post information of this sub-district.
12, according to each described method of claim 5 to 11, it is characterized in that described step B specifically comprises:
User terminal is when the IDLE state, with this sub-district of described acquisition and the winning post information of each adjacent area is benchmark, variable in distance information Δ TA between real-time calculating and this sub-district and each neighbor base station, according to this Δ TA and winning post information, determine and this sub-district and each neighbor base station between distance, and then the position range of definite user terminal.
13, method according to claim 12 is characterized in that, described step B specifically comprises:
B1, user terminal are when the IDLE state, TA with this sub-district of obtaining is the winning post benchmark, in moving process, the BCCH channel of broadcast control channel of synchronous resident base station, the demodulation training sequence, calculate the variable in distance Δ TA of user terminal and resident base station in real time, and then, determine the current distance=TA+ Δ TA between user terminal and the resident base station;
B2, user terminal detect the level of each adjacent area in real time, TAn with each adjacent area is the winning post benchmark, pass through synchronizing sequence, confirm the current synchronizing sequence and the deviation of winning post, measure the deviation of demodulating data, calculate the variable in distance Δ TAn of user terminal and each neighbor base station in real time, and then, determine the current distance=TAn+ Δ TAn between user terminal and each neighbor base station;
B3, user terminal are according to the current distance between the base station that obtain and this sub-district and each adjacent area, and the positional information of this sub-district and each adjacent area, by calculating the position range of determining user terminal.
14, method according to claim 13 is characterized in that, described step B3 specifically comprises:
Current distance between the base station of user terminal basis and this sub-district, determine that user terminal is being the center with resident base station, least radius is that the width of current distance is in the annulus scope of 550m, according to and the base station of each adjacent area between current distance, determine that user terminal is the center in the base station with each adjacent area, least radius is that the width of current distance is in the boundary scope between the annulus of 550m.
15, method according to claim 12 is characterized in that, described step B also comprises:
User terminal is done the current location of the synchronizing channel window of current distance, this sub-district and each adjacent area between the base station between the base station of the user terminal that obtains and this sub-district, user terminal and each adjacent area to upgrade and is preserved, as the winning post information of calculating next time.
16, method according to claim 12 is characterized in that, described step B also comprises:
When user terminal is calculating in its position range process, the common factor of finding certain sub-district and other sub-district is the intersection range between the sub-district not, and user terminal reselects to this sub-district, obtains the winning post information of this sub-district again.
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| CN101420711A (en) * | 2007-10-22 | 2009-04-29 | 华为技术有限公司 | Method, the Apparatus and system of metrical information, detection covering problem are provided |
| CN101557653B (en) * | 2008-04-10 | 2012-12-19 | 中兴通讯股份有限公司 | Selection method of base station and transmission method of base station type information |
| CN101765056A (en) * | 2008-12-23 | 2010-06-30 | 中兴通讯股份有限公司 | Neighboring-area message routing method and message routing method |
| CN102316478B (en) * | 2010-07-05 | 2014-07-16 | 宏碁股份有限公司 | Method for calculating current position, method for preventing communication device from being stolen and communication device |
| CN103491625B (en) * | 2012-06-11 | 2018-08-07 | 南京中兴软件有限责任公司 | A kind of localization method and system of mobile radio terminal |
| WO2014079032A1 (en) * | 2012-11-23 | 2014-05-30 | 华为技术有限公司 | Method, apparatus and system for processing access requests |
| CN107404566B (en) * | 2016-05-19 | 2020-05-12 | 中国移动通信集团设计院有限公司 | Terminal scene judging method and device |
| CN107634886A (en) * | 2017-09-20 | 2018-01-26 | 美的智慧家居科技有限公司 | Control method, control terminal and the readable storage medium storing program for executing of intelligent home device |
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