CN101848414B

CN101848414B - Method for determining signal transmission time delay and method for positioning mobile station

Info

Publication number: CN101848414B
Application number: CN 200910080161
Authority: CN
Inventors: 蒋峥; 孙长果; 吴柯维
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2009-03-24
Filing date: 2009-03-24
Publication date: 2013-04-17
Anticipated expiration: 2029-03-24
Also published as: CN101848414A

Abstract

The invention discloses a method for determining signal transmission time delay as well as a method and a device for positioning a mobile station, which is used for improving the precision of positioning the mobile station. The method comprises: in one positioning period, executing by respectively aiming to a cell in which each base station sending signals to the mobile station is positioned; in different periods, respectively detecting the signal transmission time delay of a signal which is sent by the base station in the cell and received by the mobile station to obtain at least two signal transmission time delay values; selecting the minimum value from the obtained signal transmission time delay values to serve as the signal transmission time delay value of the signal which is sent by the base station in the cell and received by the mobile station in the positioning period.

Description

Determine the method for signal transmission delay, to the method for mobile position estimation

Technical field

The present invention relates to the cellular mobile communication technology field, especially relate to a kind of method and a kind of method that travelling carriage is positioned of definite signal transmission delay.

Background technology

Be accompanied by the fast development of cellular mobile communication technology, mobile subscriber's quantity presents the state of increasing rapidly, in order constantly to satisfy mobile subscriber's demand, need to be for the mobile subscriber constantly provide new business, wherein utilize cell mobile communication systems to realize that mobile position estimation is exactly one of new business that provides for the mobile subscriber.

Along with mobile communication enters the 3G epoch, positioning service also becomes one of important service of 3G (Third Generation) Moblie simultaneously.Present positioning service mainly by the parameters such as the residential quarter ownership of travelling carriage, propagation delay, power, angle are measured, realizes target MS is positioned.Localization method commonly used has cell localization, angle to arrive (AOA at present, Angle of Arrivals)+timing advance (TA, Timing Advance) location, signal arrival time difference (TDOA, Time Difference of Arrivals) location etc.These localization methods are different at the positioning performance that different net environments has, wherein the TDOA localization method is to utilize the signal transmission time of measuring between travelling carriage and a plurality of base station poor, come a kind of algorithm that travelling carriage is positioned, and because the TDOA localization method is at time division duplex (TDD, Time Division Duplex) and Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplex) can use in the mobile communication system, and positioning accuracy is higher, therefore becomes a kind of localization method that the most mobile communication system adopts.

The signal arrival time difference TDOA that the TDOA localization method need to utilize different base station to divide to be clipped to travelling carriage calculates the positional information of travelling carriage.The measurement of TDOA can be carried out by travelling carriage, general can the employing in the cell mobile communication systems of base station synchronization by travelling carriage carried out measurement TDOA, this method is referred to as to observe TDOA (OTDOA, Observe TDOA) localization method also is that the 3GPP agreement is defined in the localization method that should support in the 3-G (Generation Three mobile communication system).Another kind is to measure travelling carriage to the TDOA of base station by NodeB, this mode is referred to as up TDOA (UTDOA, Up TDOA) localization method, the advantage of UTDOA localization method are not need travelling carriage is carried out larger transformation, also do not need between the base station synchronously strict simultaneously.

Therefore as seen, no matter be OTDOA localization method or UTDOA localization method, and other utilize the localization method (such as the OTDOA+AOA hybrid locating method) of TDOA information etc., its prerequisite of accurately locating all is the accuracy of TDOA measured value.If the TDOA measured value is inaccurate, will inevitably cause travelling carriage is positioned so the decline of performance, even locating information do not have reference value.And can find that from reality test and emulation testing the measure error of TDOA is to cause the main factor that adopts OTDOA or UTDOA localization method travelling carriage to be positioned the error that produces.

In the prior art, if adopt the OTDOA localization method that travelling carriage is positioned processing, normally calculated respectively the signal transmission delay (TOA of each the adjacent cell base station transmitted signal that self receives current place Serving cell by travelling carriage, Timer Of Arrival) and receive the TOA of the base station transmitted signal of current place Serving cell, what then will calculate subtracts each other with TOA for current service cell respectively for the TOA of each adjacent cell, transmit a signal to the TDOA of travelling carriage to obtain respectively each adjacent cell base station, then travelling carriage each adjacent cell base station that will calculate TDOA of transmitting a signal to travelling carriage reports Serving Mobile Location Center (SMLC, Serving Mobile Location Center), the TDOA for each adjacent cell that the SMLC receiving mobile reports in a locating periodically, then ask for the mean value of a plurality of TDOA that corresponding each adjacent cell reports, and then according to the TDOA mean value that corresponding each adjacent cell is tried to achieve respectively, utilize hyperboloid algorithm or hyperbola algorithm to calculate the positional information of travelling carriage.Wherein SMLC can be used as a specific installation in the cell mobile communication systems, and the functional module and the RNC that also can be used as in the radio network controller (RNC, Radio Network Controller) integrate, specifically referring to shown in Figure 1.

In the prior art, if adopt the UTDOA localization method that travelling carriage is positioned processing, normally by the orientation management unit (LMU among the NodeB, Location Management Unit) calculate respectively travelling carriage receive current service cell each adjacent cell the base station transmitted signal TOA and receive the TOA of the base station transmitted signal of current service cell, each adjacent cell base station that then will calculate respectively transmits a signal to the TOA of travelling carriage and TOA that the current service cell base station transmits a signal to travelling carriage reports SMLC, what SMLC will receive subtracts each other with TOA for current service cell respectively for the TOA of each adjacent cell, transmit a signal to the TDOA of travelling carriage to obtain respectively each adjacent cell, then ask for the mean value of a plurality of TDOA that corresponding each adjacent cell calculates in a locating periodically, and then the TDOA mean value of trying to achieve respectively according to corresponding each adjacent cell utilizes hyperboloid algorithm or hyperbola algorithm to calculate the positional information of travelling carriage.

In actual applications, if there is the direct projection footpath between base station and the travelling carriage, that is to say does not have the transmission of obstacle block signal between base station and the travelling carriage, then more accurate to the measurement meeting of TOA, and the precision that travelling carriage is positioned is also just higher.Between base station and travelling carriage, there is non-direct projection environment, then because the existence of the phenomenons such as radio wave refration, reflection, meeting is so that the measurement of TOA produces larger error, simultaneously because the multipath in the wireless channel and the time become decline, also can cause TOA to beat in a big way at one, therefore can cause the precise decreasing that travelling carriage is positioned.

And available technology adopting OTDOA localization method or UTDOA localization method position processing to travelling carriage, only be that a plurality of TDOA that respectively each adjacent cell of the current place of travelling carriage Serving cell calculated in a locating periodically are averaged processing, to eliminate the larger impact of TOA measure error that when having non-direct projection environment, is brought between base station and the travelling carriage, but in each locating periodically for each adjacent cell of the current place of travelling carriage Serving cell, only adopting a plurality of TDOA that calculate are averaged processing also only can be that measure error to TOA is averaged processing, particularly in the comparatively abominable situation of environment, this TDOA value that obtains in the mode of averaging and actual value still have gap, therefore cause precision that travelling carriage is positioned still not high.

Summary of the invention

The embodiment of the invention provides a kind of method of definite signal transmission delay, to improve the precision that travelling carriage is positioned.

The embodiment of the invention also provides a kind of method that travelling carriage is positioned, to improve the precision that travelling carriage is positioned.

Technical scheme provided by the invention is specific as follows:

A kind of method of definite signal transmission delay, be included in the locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, select minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

A kind of device of definite signal transmission delay, comprise that the propagation delay value obtains the unit, be used in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; Selected cell is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, selects minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

A kind of method that travelling carriage is positioned comprises:

The Serving Mobile Location Center receiving mobile in a locating periodically, report respectively for the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell, wherein the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell is determined by following process:

Travelling carriage is in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, select minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically;

The signal transmission delay value that travelling carriage will be selected for each adjacent cell of self current place Serving cell, respectively with the difference of the signal transmission delay value of selecting for self current place Serving cell, be defined as the signal arrival time difference of each adjacent cell of self current place Serving cell;

Serving Mobile Location Center is determined the residing positional information of travelling carriage in this locating periodically according to the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell that receives.

A kind of mobile station equipment, comprise: the propagation delay value obtains the unit, be used in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; Selected cell is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, selects minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically; The signal arrival time difference determining unit, be used for the signal transmission delay value of selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; Report the unit, the signal arrival time difference that is used for each adjacent cell of the current place of travelling carriage Serving cell that the signal arrival time difference determining unit is determined reports Serving Mobile Location Center equipment.

A kind of Serving Mobile Location Center equipment comprises receiving element, be used for that receiving mobile reports in a locating periodically respectively for the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell; Positioning unit is used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell that receives according to receiving element, determines the residing positional information of travelling carriage in this locating periodically.

A kind of method that travelling carriage is positioned comprises:

Serving Mobile Location Center receives the signal transmission delay value that reports respectively to each base station of travelling carriage transmitted signal in a locating periodically, wherein the signal transmission delay value that reports of each base station is definite by following process:

The signal transmission delay that described travelling carriage receives the signal that self sends is detected respectively at different time in this base station in a locating periodically, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, select minimum value as the signal transmission delay value that will report in this locating periodically;

Serving Mobile Location Center is according to each signal transmission delay value that receives, the signal transmission delay value that base station in the Serving cell of the current place of travelling carriage is reported, respectively with each adjacent cell of the current place of travelling carriage Serving cell in the difference of the signal transmission delay value that reports of base station, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell; And

According to the signal arrival time difference of each adjacent cell of the current place of the travelling carriage of determining Serving cell, determine the residing positional information of travelling carriage in this locating periodically.

A kind of base station equipment comprises that the propagation delay value obtains the unit, is used in a locating periodically, detects respectively the signal transmission delay that travelling carriage receives the signal of described base station equipment transmission at different time, obtains at least two signal transmission delay values; Selected cell is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, selects minimum value as the signal transmission delay value that will report Serving Mobile Location Center in this locating periodically; Report the unit, the signal transmission delay value that is used for selected cell is selected reports Serving Mobile Location Center.

A kind of Serving Mobile Location Center equipment comprises receiving element, is used for receiving the signal transmission delay value that reports respectively in a locating periodically to each base station of travelling carriage transmitted signal; The signal arrival time difference determining unit, for each signal transmission delay value that receives according to receiving element, the signal transmission delay value that base station in the Serving cell of the current place of travelling carriage is reported, respectively with each adjacent cell of the current place of travelling carriage Serving cell in the difference of the signal transmission delay value that reports of base station, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell; Positioning unit is used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell determined according to the signal arrival time difference determining unit, determines the residing positional information of travelling carriage in this locating periodically.

A kind of method that travelling carriage is positioned, comprise at least two signal transmission delay values that the Serving Mobile Location Center receiving mobile reports for current service cell in a locating periodically, and at least two signal transmission delay values that report respectively for each adjacent cell of current service cell; And in this locating periodically, each adjacent cell for current service cell and current service cell is carried out respectively: at least two signal transmission delay values that correspondence receives, select minimum value as in this locating periodically for the signal transmission delay value of this residential quarter; The signal transmission delay value that Serving Mobile Location Center will be selected for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And according to the signal arrival time difference of each adjacent cell of the current place of the travelling carriage of determining Serving cell, determine the residing positional information of travelling carriage in this locating periodically.

A kind of Serving Mobile Location Center equipment, comprise receiving element, be used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal transmission delay values that report respectively for each adjacent cell of current service cell; And selected cell, be used in this locating periodically, each adjacent cell for current service cell and current service cell is carried out respectively: at least two signal transmission delay values that the receiving element correspondence receives, select minimum value as in this locating periodically for the signal transmission delay value of this residential quarter; The signal arrival time difference determining unit, be used for the signal transmission delay value of selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And positioning unit, be used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell determined according to the signal arrival time difference determining unit, determine the residing positional information of travelling carriage in this locating periodically.

A kind of method that travelling carriage is positioned comprises:

At least two signal transmission delay values that the Serving Mobile Location Center receiving mobile reports for current service cell in a locating periodically, and at least two signal arrival time differences that report respectively for each adjacent cell of current service cell; And

In this locating periodically, carry out respectively for each adjacent cell of current service cell:

At least two signal arrival time differences that correspondence is received, respectively with at least two signal transmission delay values of the corresponding current service cell that receives and, be defined as in this locating periodically at least two signal transmission delay values for this adjacent cell;

In at least two signal transmission delay values determining, select minimum value as in this locating periodically for the signal transmission delay value of this adjacent cell;

Serving Mobile Location Center is for current service cell, at least two signal transmission delay values that correspondence receives, select minimum value as in this locating periodically for the signal transmission delay value of current service cell; And

The signal transmission delay value that to select for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And

A kind of Serving Mobile Location Center equipment, comprise receiving element, be used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal arrival time differences that report respectively for each adjacent cell of current service cell; And first selected cell, be used in this locating periodically, each adjacent cell for current service cell is carried out respectively: at least two signal arrival time differences that the receiving element correspondence is received, respectively with at least two signal transmission delay values of the corresponding current service cell that receives and, be defined as in this locating periodically at least two signal transmission delay values for this adjacent cell; And at least two signal transmission delay values determining, select minimum value as in this locating periodically for the signal transmission delay value of this adjacent cell; The second selected cell is used for for current service cell, at least two signal transmission delay values that the receiving element correspondence receives, select minimum value as in this locating periodically for the signal transmission delay value of current service cell; And signal arrival time difference determining unit, be used for the signal transmission delay value of the first selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the second selected cell for the signal transmission delay value of the current place of travelling carriage Serving cell selection, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; Positioning unit is used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell determined according to the signal arrival time difference determining unit, determines the residing positional information of travelling carriage in this locating periodically.

A kind of method of definite signal transmission delay, be included in the locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, add up respectively the inferior numerical value that identical value occurs; Compare in inferior numerical value that obtains of statistics greater than the inferior numerical value to the threshold value should the residential quarter preset; And in the corresponding identical value that occurs of the inferior numerical value that compares, select minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

A kind of device of definite signal transmission delay, comprise that the propagation delay value obtains the unit, be used in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; Statistic unit is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, adds up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, selects minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

A kind of method that travelling carriage is positioned comprises:

Travelling carriage is in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, add up respectively the inferior numerical value that identical value occurs; Compare in inferior numerical value that obtains of statistics greater than the inferior numerical value to the threshold value should the residential quarter preset; And in the corresponding identical value that occurs of the inferior numerical value that compares, select minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically;

A kind of mobile station equipment, comprise: the propagation delay value obtains the unit, be used in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; Statistic unit is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, adds up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, selects minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically; The signal arrival time difference determining unit, be used for the signal transmission delay value of selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; Report the unit, the signal arrival time difference that is used for each adjacent cell of the current place of travelling carriage Serving cell that the signal arrival time difference determining unit is determined reports Serving Mobile Location Center equipment.

A kind of method that travelling carriage is positioned comprises:

The signal transmission delay that described travelling carriage receives the signal that self sends is detected respectively at different time in this base station in a locating periodically, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, add up respectively the inferior numerical value that identical value occurs; Compare in inferior numerical value that obtains of statistics the inferior numerical value greater than the threshold value of presetting; And in the corresponding identical value that occurs of the inferior numerical value that compares, select minimum value as the signal transmission delay value that will report in this locating periodically;

A kind of base station equipment comprises that the propagation delay value obtains the unit, is used in a locating periodically, detects respectively the signal transmission delay that travelling carriage receives the signal of described base station equipment transmission at different time, obtains at least two signal transmission delay values; Statistic unit is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, adds up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value of the threshold value of presetting; Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, selects minimum value as the signal transmission delay value that will report Serving Mobile Location Center in this locating periodically; Report the unit, the signal transmission delay value that is used for selected cell is selected reports Serving Mobile Location Center.

A kind of method that travelling carriage is positioned comprises:

At least two signal transmission delay values that the Serving Mobile Location Center receiving mobile reports for current service cell in a locating periodically, and at least two signal transmission delay values that report respectively for each adjacent cell of current service cell; And

In this locating periodically, carry out respectively for each adjacent cell of current service cell and current service cell:

In at least two signal transmission delay values that correspondence receives, add up respectively the inferior numerical value that identical value occurs;

Compare in inferior numerical value that obtains of statistics greater than the inferior numerical value to the threshold value should the residential quarter preset; And

In the corresponding identical value that occurs of the inferior numerical value that compares, select minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically;

The signal transmission delay value that Serving Mobile Location Center will be selected for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And

A kind of Serving Mobile Location Center equipment, comprise receiving element, be used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal transmission delay values that report respectively for each adjacent cell of current service cell; And statistic unit, be used in this locating periodically, carrying out respectively for each adjacent cell of current service cell and current service cell: at least two signal transmission delay values that correspondence receives, add up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; And selected cell, for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, select minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically; The signal arrival time difference determining unit, be used for the signal transmission delay value of selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And positioning unit, be used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell determined according to the signal arrival time difference determining unit, determine the residing positional information of travelling carriage in this locating periodically.

A kind of method that travelling carriage is positioned comprises:

In this locating periodically, each adjacent cell for current service cell is carried out respectively: at least two signal arrival time differences that correspondence is received, respectively with at least two signal transmission delay values of the corresponding current service cell that receives and, be defined as in this locating periodically at least two signal transmission delay values for this adjacent cell;

At least two signal transmission delay values that Serving Mobile Location Center receives for corresponding current service cell, and at least two signal transmission delay values that described each adjacent cell of correspondence is determined respectively, carry out respectively:

In at least two signal transmission delay values of correspondence, add up respectively the inferior numerical value that identical value occurs; And

A kind of Serving Mobile Location Center equipment, comprise receiving element, be used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal arrival time differences that report respectively for each adjacent cell of current service cell; And propagation delay value determining unit, be used in this locating periodically, each adjacent cell for current service cell is carried out respectively: at least two signal arrival time differences that the receiving element correspondence is received, respectively with at least two signal transmission delay values of the corresponding current service cell that receives and, be defined as in this locating periodically at least two signal transmission delay values for this adjacent cell; Statistic unit, for at least two signal transmission delay values that receive for the corresponding current service cell of receiving element, with at least two signal transmission delay values determining respectively for corresponding described each adjacent cell of propagation delay value determining unit, carry out respectively: at least two signal transmission delay values of correspondence, add up respectively the inferior numerical value that identical value occurs; And comparing unit, be used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, selects minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically; The signal arrival time difference determining unit, be used for the signal transmission delay value of selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; Positioning unit is used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell determined according to the signal arrival time difference determining unit, determines the residing positional information of travelling carriage in this locating periodically.

A kind of method of definite signal transmission delay, be included in the locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, add up respectively the inferior numerical value that identical value occurs; Compare in inferior numerical value that obtains of statistics greater than the inferior numerical value to the threshold value should the residential quarter preset; And in the corresponding identical value that occurs of the inferior numerical value that compares, select minimum signal transmission delay value; According to the signal transmission delay value of selecting and in the signal transmission delay value that obtains less than the time delay value of the signal transmission delay value of this selection, determine that travelling carriage in this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter.

A kind of device of definite signal transmission delay, comprise that the propagation delay value obtains the unit, be used in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; Statistic unit is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, adds up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; And selected cell, for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, select minimum signal transmission delay value; Propagation delay value determining unit, be used for according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that obtains less than the signal transmission delay value of this selection, determine that the interior travelling carriage of this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter.

A kind of method that travelling carriage is positioned comprises:

Travelling carriage is in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, add up respectively the inferior numerical value that identical value occurs; Compare in inferior numerical value that obtains of statistics greater than the inferior numerical value to the threshold value should the residential quarter preset; And in the corresponding identical value that occurs of the inferior numerical value that compares, select minimum signal transmission delay value; According to the signal transmission delay value of selecting and in the signal transmission delay value that obtains less than the time delay value of the signal transmission delay value of this selection, determine the signal transmission delay value that travelling carriage in this locating periodically receives the signal that the base station sends in this residential quarter;

The signal transmission delay value that travelling carriage will be determined for each adjacent cell of self current place Serving cell, respectively with the difference of the signal transmission delay value of determining for self current place Serving cell, be defined as the signal arrival time difference of each adjacent cell of self current place Serving cell;

A kind of mobile station equipment, comprise that the propagation delay value obtains the unit, be used in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values; Statistic unit is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, adds up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, is selected minimum signal transmission delay value; Propagation delay value determining unit, be used for according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that obtains less than the signal transmission delay value of this selection, determine that the interior travelling carriage of this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter; The signal arrival time difference determining unit, for the signal transmission delay value that propagation delay value determining unit is determined for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of determining for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; Report the unit, the signal arrival time difference that is used for each adjacent cell of the current place of travelling carriage Serving cell that the signal arrival time difference determining unit is determined reports Serving Mobile Location Center equipment.

A kind of method that travelling carriage is positioned comprises:

The signal transmission delay that described travelling carriage receives the signal that self sends is detected respectively at different time in this base station in a locating periodically, obtain at least two signal transmission delay values; In at least two signal transmission delay values that obtain, add up respectively the inferior numerical value that identical value occurs; Compare in inferior numerical value that obtains of statistics the inferior numerical value greater than the threshold value of presetting; And in the corresponding identical value that occurs of the inferior numerical value that compares, select minimum signal transmission delay value; According to the signal transmission delay value of selecting and in the signal transmission delay value that obtains less than the time delay value of the signal transmission delay value of this selection, determine the signal transmission delay value that will report in this locating periodically;

A kind of base station equipment comprises that the propagation delay value obtains the unit, is used in a locating periodically, detects respectively the signal transmission delay that travelling carriage receives the signal of described base station equipment transmission at different time, obtains at least two signal transmission delay values; Statistic unit is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, adds up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value of the threshold value of presetting; Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, is selected minimum signal transmission delay value; Propagation delay value determining unit, be used for determining to report in this locating periodically the signal transmission delay value of Serving Mobile Location Center according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that obtains less than the signal transmission delay value of this selection; Report the unit, the signal transmission delay value that is used for propagation delay value determining unit is determined reports Serving Mobile Location Center.

A kind of method that travelling carriage is positioned comprises:

In the corresponding identical value that occurs of the inferior numerical value that compares, select minimum signal transmission delay value;

According to the signal transmission delay value of selecting and in the signal transmission delay value that receives less than the time delay value of the signal transmission delay value of this selection, determine the signal transmission delay value that travelling carriage in this locating periodically receives the signal that the base station sends in this residential quarter;

The signal transmission delay value that Serving Mobile Location Center will be determined for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of determining for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And

A kind of Serving Mobile Location Center equipment, comprise receiving element, be used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal transmission delay values that report respectively for each adjacent cell of current service cell; And statistic unit, be used in this locating periodically, carrying out respectively for each adjacent cell of current service cell and current service cell: at least two signal transmission delay values that correspondence receives, add up respectively the inferior numerical value that identical value occurs; Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; And selected cell, for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, select minimum signal transmission delay value; Propagation delay value determining unit, be used for according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that receives less than the signal transmission delay value of this selection, determine the signal transmission delay value that the interior travelling carriage of this locating periodically receives the signal that the base station sends in this residential quarter; The signal arrival time difference determining unit, for the signal transmission delay value that propagation delay value determining unit is determined for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of determining for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And positioning unit, be used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell determined according to the signal arrival time difference determining unit, determine the residing positional information of travelling carriage in this locating periodically.

A kind of method that travelling carriage is positioned comprises:

A kind of Serving Mobile Location Center equipment, comprise receiving element, be used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal arrival time differences that report respectively for each adjacent cell of current service cell; And

Propagation delay value determining unit, be used in this locating periodically, each adjacent cell for current service cell is carried out respectively: at least two signal arrival time differences that the receiving element correspondence is received, respectively with at least two signal transmission delay values of the corresponding current service cell that receives and, be defined as in this locating periodically at least two signal transmission delay values for this adjacent cell; Statistic unit, for at least two signal transmission delay values that receive for the corresponding current service cell of receiving element, with at least two signal transmission delay values determining respectively for corresponding described each adjacent cell of propagation delay value determining unit, carry out respectively: at least two signal transmission delay values of correspondence, add up respectively the inferior numerical value that identical value occurs; And comparing unit, be used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, is selected minimum signal transmission delay value; Propagation delay value determining unit, be used for according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that receives less than the signal transmission delay value of this selection, determine the signal transmission delay value that the interior travelling carriage of this locating periodically receives the signal that the base station sends in this residential quarter; The signal arrival time difference determining unit, be used for signal transmission delay value that each adjacent cell for the current place of travelling carriage Serving cell that propagation delay value determining unit is determined is selected, with the difference of the signal transmission delay value of determining for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively;

Positioning unit is used for the signal arrival time difference of each adjacent cell of the current place of the travelling carriage Serving cell determined according to the signal arrival time difference determining unit, determines the residing positional information of travelling carriage in this locating periodically.

The embodiment of the invention is before SMLC positions computing to travelling carriage, to in a locating periodically, in a plurality of TOA measured values that detect respectively for each residential quarter to the travelling carriage transmitted signal, choose less TOA value as far as possible and be used for follow-up localization process, thereby improve the precision of under the non-direct projection environment TOA value being selected, and improve the accuracy that travelling carriage is positioned.

Description of drawings

Below in conjunction with each accompanying drawing the specific implementation process of technical solution of the present invention is carried out detailed elaboration, wherein in each accompanying drawing:

Fig. 1 is the structure chart of navigation system in the present cell mobile communication systems;

Fig. 2 is the process chart that the first of embodiment of the invention proposition is determined the method for signal transmission delay;

Fig. 3 is the first embodiment that among the present invention travelling carriage is positioned;

Fig. 4 is the second embodiment that among the present invention travelling carriage is positioned;

Fig. 5 is the 3rd embodiment that among the present invention travelling carriage is positioned;

Fig. 6 is the 4th embodiment that among the present invention travelling carriage is positioned;

Fig. 7 is the process chart that the second of embodiment of the invention proposition is determined the method for signal transmission delay;

Fig. 8 is the 5th embodiment that among the present invention travelling carriage is positioned;

Fig. 9 is the 6th embodiment that among the present invention travelling carriage is positioned;

Figure 10 is the 7th embodiment that among the present invention travelling carriage is positioned;

Figure 11 is the 8th embodiment that among the present invention travelling carriage is positioned;

Figure 12 is the 9th embodiment that among the present invention travelling carriage is positioned;

Figure 13 is the tenth embodiment that among the present invention travelling carriage is positioned;

Figure 14 is the 11 embodiment that among the present invention travelling carriage is positioned;

Figure 15 is the 12 embodiment that among the present invention travelling carriage is positioned.

Embodiment

Because when available technology adopting OTDOA localization method or UTDOA localization method position processing to travelling carriage, only be that a plurality of TDOA that respectively each adjacent cell of the current place of travelling carriage Serving cell calculated in a locating periodically are averaged processing, to eliminate the larger impact of TOA measure error that when having non-direct projection environment, is brought between base station and the travelling carriage, when but larger error appears in the TOA measured value that causes when instantaneous channel variation, therefore or can cause precision that travelling carriage is positioned not high adopt and thisly can not eliminate the TOA measurement error to the impact of TDOA accuracy in the mode of averaging.The present invention is directed to this problem, propose a kind of scheme of new elimination TOA measurement error, thereby eliminate the TDOA error that may cause, to improve the positioning performance of OTDOA localization method, UTDOA localization method and other localization method.General in the network environment of reality, scattering object often is distributed in the travelling carriage certain limit on every side, and along with the variation of the movement of travelling carriage or surrounding environment and change, when scattering object changes, from the signal of base station emission arrive travelling carriage the path of process also can change, like this TOA value that detects of travelling carriage will the time little when large.For example when the mobile subscriber stands in the curbside the rheology because road is got on the bus, stopping in the time of can causing the signal propagation path between mobile subscriber and the base station and by wagon flow becomes non-direct projection path, the time and do not have wagon flow to stop to become the direct projection path.Again for example when mobile subscriber's road walking along the street, because street environment constantly changes, also can make signal propagation path between mobile subscriber and the base station in continuous variation.Because the refraction environment has prolonged the length of signal propagation path, therefore the signal transmission delay TOA under the non-direct projection environment is necessarily greater than the signal transmission delay TOA under the direct projection environment, based on this principle, therefore the technological thought of the present invention's proposition is in a locating periodically, when a plurality of TOA values that detect in a residential quarter are carried out the error correction processing, in a plurality of TOA measured values that detect, seek as much as possible minimum TOA measured value as in this locating periodically, to the TOA value that should cell measurement obtains, the impact that the mobile position estimation processing procedure is caused to reduce non-direct projection environment improves the positioning performance to travelling carriage.

The focusing on of the embodiment of the invention processed for a plurality of TOA measured values that the cell detection to each place, base station of travelling carriage transmitted signal obtains, in a plurality of TOA measured values, to filter out rational TOA value, be used for to calculate TDOA that should the residential quarter, thereby improve the certainty of measurement of TDOA, reach accordingly and improve the precision that travelling carriage is positioned.

As shown in Figure 2, the first that proposes for the embodiment of the invention is determined the process chart of the method for signal transmission delay, and its processing procedure is, in a locating periodically, carries out following processing for the residential quarter to each place, base station of travelling carriage transmitted signal respectively:

Step 10 at different time, detects respectively the TOA that this travelling carriage receives the signal that the base station sends in this residential quarter, to obtain at least two TOA values; Burst and the actual burst that receives of travelling carriage that wherein can utilize the base station in this residential quarter to send carry out related operation at every turn, obtaining the related power result, and determine the TOA value that this detects according to the related power result; The burst and the actual burst that receives of travelling carriage that perhaps utilize the base station in this residential quarter to send carry out the deconvolution computing, to obtain channel estimation results, then determine the TOA value that this detects according to channel estimation results, wherein these two kinds of detection modes no longer give to elaborate for existing known technology here.

Step 20 at least two TOA values of above-mentioned acquisition, selects minimum TOA value to receive the TOA value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

Determine that with above-mentioned the first device corresponding to the method for signal transmission delay is also within the protection range of the embodiment of the invention.

Wherein determine the realization principle of the method for signal transmission delay based on above-mentioned the first, the embodiment of the invention proposes the embodiment that travelling carriage is positioned of four kinds of correspondences here, and the below will introduce respectively.

Embodiment one, come to determine according to above-mentioned the first the realization principle of the method for TOA by travelling carriage, the TOA value (namely adopting the OTDOA locate mode) of determining corresponding each residential quarter in each locating periodically positions processing, specifically please refer to shown in Figure 3ly, and its specific implementation process is as follows:

Step 30, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports once the OTDOA for corresponding each residential quarter;

Step 31 supposes that here travelling carriage receives the signal that M the base station in the residential quarter issues simultaneously, and in a locating periodically, detects respectively the TOA that signal that the base station in each residential quarter sends arrives travelling carriage at different time ⁱ, wherein i represents cell ID, i=1 ..., M, wherein TOA ⁱCan utilize known transmitted signal sequence to carry out with receiving burst that related operation obtains related power or the deconvolution computing obtains;

Step 32, travelling carriage is carried out for each residential quarter in M the residential quarter: at a plurality of TOA that arrive for this cell detection ⁱIn the value, select minimum value to receive the TOA of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically ⁱValue;

Step 33, the TOA that travelling carriage will be selected for each adjacent cell of self current place Serving cell ⁱValue is respectively with the TOA that selects for self current place Serving cell ⁱThe difference of value is defined as in this locating periodically the OTDOA of each adjacent cell of self current place Serving cell ⁱ, i=1 ..., M-1;

Step 34, travelling carriage will be in this locating periodicallies, the OTDOA of each adjacent cell of self current place Serving cell of determining ⁱReport SMLC by RNC, wherein SMLC may be arranged in RNC, also may arrange separately;

For example: suppose that travelling carriage receives the signal that send the base station in 3 residential quarters, wherein in a locating periodically, detect 3 TOA values for residential quarter 1, be respectively 2ms, 3ms and 5ms, detect 3 TOA values for residential quarter 2, be respectively 2ms, 3ms and 1ms, detect 3 TOA values for residential quarter 3, be respectively 5ms, 4ms and 2ms, then select 2ms as the TOA value of residential quarter 1 in this locating periodically for residential quarter 1, select 1ms as the TOA value of residential quarter 2 in this locating periodically for residential quarter 2, select 2ms as the TOA value of residential quarter 3 in this locating periodically for residential quarter 3.Suppose that residential quarter 2 is the Serving cell at the current place of travelling carriage, residential quarter 1 and 3 is respectively the adjacent cell of residential quarter 2, then can obtain in this locating periodically being 1ms for the OTDOA of residential quarter 1, for the OTDOA of residential quarter 3, is 1ms.And then travelling carriage can report SMLC for 1ms with for the OTDOA value of residential quarter 3 for 1ms for the OTDOA value of residential quarter 1 with what determine in this locating periodically, for SMLC for calculating residing positional information of travelling carriage in this locating periodically.

Step 35, SMLC is according to the OTDOA of each adjacent cell of the current place of the travelling carriage Serving cell that receives ⁱ(i=1 ..., M-1), adopt hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically.

Wherein among the corresponding embodiment one targeting scheme and the mobile station equipment that proposes and SMLC equipment also within the protection range of the embodiment of the invention.

Embodiment two, come to determine according to above-mentioned the first the realization principle of the method for TOA by NodeB, the TOA value (namely adopting the UTDOA locate mode) of determining corresponding each residential quarter in each locating periodically positions processing, specifically please refer to shown in Figure 4ly, and its specific implementation process is as follows:

Step 40 after RNC receives the running fix request of core net, transmits control message to a plurality of NodeB to the travelling carriage transmitted signal, requires each NodeB in each locating periodically, reports once the TOA value that self transmits a signal to travelling carriage;

Step 41, each NodeB detects respectively the TOA that travelling carriage receives the signal that self sends at different time in a locating periodically, obtain a plurality of TOA values;

Step 42, each NodeB selects minimum TOA value to report SMLC by RNC in a plurality of TOA values that obtain;

Step 43, SMLC is according in a locating periodically, the TOA value that reports respectively to each NodeB of travelling carriage transmitted signal, the TOA value that NodeB in the Serving cell of the current place of travelling carriage is reported, respectively with each adjacent cell of the current place of travelling carriage Serving cell in the difference of the TOA value that reports of NodeB, be defined as the UTDOA of each adjacent cell of the current place of travelling carriage Serving cell;

For example, suppose to exist 3 NodeB to the travelling carriage transmitted signal, wherein NodeB 1 detects 3 TOA values in a locating periodically, be respectively 5ms, 2ms and 4ms, NodeB 2 detects 3 TOA values in a locating periodically, be respectively 6ms, 4ms and 5ms, NodeB 3 detects 3 TOA values in a locating periodically, be respectively 4ms, 7ms and 3ms, then in this locating periodically, NodeB1 can report SMLC with 2ms, and NodeB 2 can report SMLC with 4ms, and NodeB 3 can report SMLC with 3ms.Suppose that NodeB 1 is the base station in the Serving cell of the current place of travelling carriage, then can to determine in this locating periodically the UTDOA for the residential quarter at NodeB 2 places be 2ms to SMLC, is 1ms for the UTDOA of the residential quarter at NodeB 2 places.

Step 44, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the UTDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment two targeting scheme and the base station equipment that proposes and SMLC equipment also within the protection range of the embodiment of the invention.

Embodiment three, come to determine according to above-mentioned the first the realization principle of the method for TOA by SMLC, determine that in each locating periodically the TOA value of corresponding each residential quarter positions processing, specifically please refer to shown in Figure 5ly, and its specific implementation process is as follows:

Step 50, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports respectively a plurality of TOA values for each respective cell;

Step 51, here suppose that travelling carriage receives the signal that M the base station in the residential quarter issues simultaneously, then travelling carriage is carried out respectively for each residential quarter: in a locating periodically, different time respectively to this residential quarter in the signal that sends of the base station TOA that arrives self detect, thereby in this locating periodically, obtain a plurality of TOA values that should the residential quarter;

Step 52, travelling carriage will be in this locating periodically, and a plurality of TOA values that detect respectively for each residential quarter report SMLC by RNC;

Step 53, SMLC is in this locating periodically, each adjacent cell for travelling carriage current place Serving cell and current service cell is carried out respectively: in to a plurality of TOA values that should the residential quarter receive, select minimum value as in this locating periodically for the TOA value of this residential quarter; For example travelling carriage is in a locating periodically, detect 3 TOA values for the residential quarter 1 to self transmitted signal, be respectively 2ms, 3ms and 6ms, detect 3 TOA values for the residential quarter 2 to self transmitted signal, be respectively 5ms, 3ms and 4ms, detect 3 TOA values for the residential quarter 3 to self transmitted signal, be respectively 5ms, 4ms and 4ms, travelling carriage can be with { 2ms, 3ms, 6ms} reports SMLC as a plurality of TOA values that respective cell 1 detects in this locating periodically, with { 5ms, 3ms, 4ms} reports SMLC as a plurality of TOA values that respective cell 2 detects in this locating periodically, with { 4ms} reports SMLC as a plurality of TOA values that respective cell 3 detects in this locating periodically for 5ms, 4ms; SMLC can select respectively 2ms as in this locating periodically for the TOA value of this residential quarter 1, select 3ms as in this locating periodically for the TOA value of this residential quarter 2, select 4ms as in this locating periodically for the TOA value of this residential quarter 3;

Step 54, the TOA value that SMLC will select respectively for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the TOA value of selecting for the current place of travelling carriage Serving cell, be defined as the TDOA of each adjacent cell of the current place of travelling carriage Serving cell respectively; Continue above-mentioned example, suppose that residential quarter 1 is the Serving cell of travelling carriage, then can to determine the TDOA of the residential quarter 2 adjacent with residential quarter 1 be 1ms to SMLC, and the TDOA of the residential quarter 3 adjacent with residential quarter 1 is 2ms;

Step 55, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the UTDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment three targeting scheme and the SMLC equipment that proposes also within the protection range of the embodiment of the invention.

Embodiment four, come to determine according to above-mentioned the first the realization principle of the method for TOA by SMLC, determine that in each locating periodically the TOA value of corresponding each residential quarter positions processing, specifically please refer to shown in Figure 6ly, and its specific implementation process is as follows:

Step 60, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports respectively a plurality of TDOA values for each respective cell;

Step 61, with the existing techniques in realizing principle, travelling carriage is determined a plurality of TOA values for self current place Serving cell in a locating periodically, and determines a plurality of TDOA values corresponding to each adjacent cell difference for current service cell;

The a plurality of TOA values for self current place Serving cell that step 62, travelling carriage will be determined, and for each adjacent cell of current service cell respectively corresponding a plurality of TDOA values report SMLC by RNC;

Step 63, the a plurality of TOA values for current place Serving cell that SMLC reports for travelling carriage respectively, with a plurality of TDOA values corresponding to each adjacent cell difference for current service cell, determine in this locating periodically, each adjacent cell is a plurality of TOA values of correspondence respectively, determine that wherein mode illustrates with a following example:

Suppose that a plurality of TOA values for current place Serving cell 1 that travelling carriage reports are { 2ms, 3ms, 6ms}, the a plurality of TDOA values that report for the adjacent cell 2 of Serving cell 1 are { 1ms, 1ms, 2ms}, a plurality of TDOA values that report for the adjacent cell 3 of Serving cell 1 are { 2ms, 2ms, 1ms}, then with the respectively in order a plurality of TOA value addition corresponding with Serving cell 1 of a plurality of TDOA values of adjacent cell 2 correspondences, a plurality of TOA values that obtain adjacent cell 2 correspondences are { 3ms, 4ms, 8ms}, the a plurality of TOA values that in like manner obtain adjacent cell 3 correspondences are { 4ms, 5ms, 7ms}.

Step 64, SMLC carries out respectively for each adjacent cell of travelling carriage current place Serving cell and current service cell: in should a residential quarter determinate multitudes TOA value, select minimum TOA value as in this locating periodically, travelling carriage receives the TOA value of the signal of this residential quarter transmission;

Step 65, SMLC will be in this locating periodically, the TOA value of selecting respectively for each adjacent cell of the current place of travelling carriage Serving cell respectively with the difference of the TOA value of selecting for the current place of travelling carriage Serving cell, is defined as the TDOA of each adjacent cell of the current place of travelling carriage Serving cell;

Step 66, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the UTDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment four targeting scheme and the SMLC equipment that proposes also within the protection range of the embodiment of the invention.

As shown in Figure 7, the second that proposes for the embodiment of the invention is determined the process chart of the method for signal transmission delay, and its processing procedure is, in a locating periodically, carries out following processing for the residential quarter to each place, base station of travelling carriage transmitted signal respectively:

Step 70 at different time, detects respectively the TOA that travelling carriage receives the signal that the base station sends in this residential quarter, to obtain a plurality of TOA values; For example suppose for certain cell detection to a plurality of TOA value sets be TOA ⁱ, wherein i represents cell ID, i=1 ..., M, M represents number of cells;

Step 71, the TOA value set TOA that will arrive for this cell detection ⁱDeposit in the buffering area, then in this buffering area, add up at TOA value set TOA ⁱIn in a plurality of TOA values of comprising, the inferior numerical value that identical value occurs;

For example suppose in a locating periodically, K different time, detect respectively the TOA that travelling carriage receives the signal that the base station sends in this residential quarter, then TOA value set TOA ⁱIn will comprise K TOA value, then can count in this K TOA value each different TOA measured value T _n ⁱ, n=1 ..., N, N≤K (namely for cell i, N different TOA measured value can appear in K measurement) TOA measured value T different with each _n ⁱThe corresponding measurement that occurs time numerical value

And have:

Σ_{n = 1}^{N} G_{T_{n}}^{i} = K;

For example, in a locating periodically, 5 different times, detect respectively the TOA that travelling carriage receives the signal that the base station sends in this residential quarter, then TOA value set TOA ⁱIn will comprise 5 TOA values, be respectively 4ms, 5ms, 4ms, 2ms, 2ms} then can count in these 5 TOA values the TOA measured value

T_{n}^{i} = 4 ms

The corresponding measurement that occurs time numerical value is 2 times, the TOA measured value

T_{n}^{i} = 5 ms

The corresponding measurement that occurs time numerical value is 1 time, the TOA measured value

T_{n}^{i} = 2 ms

The corresponding measurement that occurs time numerical value is 2 times.

Step 72 is according to the numbering i of this residential quarter, at the cell number i and the detection threshold value Г that safeguard in advance ⁱCorresponding relation in, find detection threshold value Γ that should the residential quarter ⁱWherein be its corresponding detection threshold value Γ of each little area definition ⁱPurpose be and can reflect the regional environment that the residential quarter that is numbered i covers, particularly detection threshold value Γ corresponding to residential quarter by detection threshold value ⁱValue can be according to the covering radius of the regional environment of this residential quarter (in this way old urban area or Xincheng District, or suburb etc.) and this residential quarter, and detect and test case is specifically determined in conjunction with TOA; Preferably for the fairly simple zone of network environment, the detection threshold value of residential quarter can be higher, for example be 1/4th (K/4) that in a locating periodically, this residential quarter measured TOA value total degree K, zone for the network environment more complicated, the detection threshold value of residential quarter can suitably reduce, and for example is K/8.

Step 73 compares in each time numerical value that above-mentioned steps 71 statistics obtains greater than inferior numerical value to should the residential quarter default detection threshold value that finds in above-mentioned steps 72, i.e. selection

G_{T_{n}}^{i} > Γ^{i}

Inferior numerical value;

Step 74 in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares, selects minimum value to receive the TOA value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically;

The situation of for example, adding up each time numerical value that obtains in above-mentioned steps 71 is: the TOA measured value

T_{n}^{i} = 4 ms

T_{n}^{i} = 5 ms

T_{n}^{i} = 2 ms

The corresponding measurement that occurs time numerical value is 2 times, in above-mentioned steps 72, find to should the default detection threshold value Г in residential quarter ⁱBe 1 time, then can determine the TOA measured value

T_{n}^{i} = 4 ms

The corresponding measurement that occurs time numerical value is 2 times, and the TOA measured value

T_{n}^{i} = 2 ms

The corresponding measurement that occurs time numerical value be 2 times respectively greater than detection threshold value Γ ⁱBe 1 time, then can be at the TOA measured value

T_{n}^{i} = 4 ms

With the TOA measured value

T_{n}^{i} = 2 ms

Two values in select a minimum value, namely select 2ms to receive the TOA value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

Because when between base station and travelling carriage, having non-direct projection environment, can exist in the TOA testing process and detect error, also may be so that the TOA value that detects may be less than the TOA value in the direct projection environment in the reality, the minimum value of therefore only getting in the measured value also may be introduced error, therefore just need in algorithm, select rational detection threshold value, have certain reliability and accuracy with the selection that guarantees the TOA measured value.Simultaneously because refraction path must cause measuring the time delay increasing, therefore select with the TOA value of value minimum in the TOA measured value after the detection threshold value filtration as the reality use, can make the distance calculating between base station and the travelling carriage more accurate, therefore the visible the second that adopts determines that the method for TOA adopts the first to determine the method for TOA relatively, and accuracy can be higher.

Determine that with above-mentioned the second device corresponding to the method for signal transmission delay is also within the protection range of the embodiment of the invention.

Wherein determine the realization principle of the method for signal transmission delay based on above-mentioned the second, the embodiment of the invention proposes the embodiment that travelling carriage is positioned of four kinds of correspondences here, and the below will introduce respectively.

Embodiment five, come to determine according to above-mentioned the second the realization principle of the method for TOA by travelling carriage, the TOA value (namely adopting the OTDOA locate mode) of determining corresponding each residential quarter in each locating periodically positions processing, specifically please refer to shown in Figure 8ly, and its specific implementation process is as follows:

Step 80, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports once the OTDOA for corresponding each residential quarter;

Step 81, here suppose that travelling carriage receives the signal that M the base station in the residential quarter issues simultaneously, in a locating periodically, travelling carriage is carried out for each residential quarter in M the residential quarter: detect respectively the TOA that signal that the base station in this residential quarter sends arrives travelling carriage at different time;

Step 82, travelling carriage for this cell detection to a plurality of TOA values in, add up the inferior numerical value that identical value occurs;

Step 83, travelling carriage be according to the numbering of this residential quarter, in the corresponding relation of the cell number of safeguarding in advance and detection threshold value, finds detection threshold value that should the residential quarter;

Step 84, travelling carriage compare in each time numerical value that above-mentioned statistics obtains greater than at the above-mentioned inferior numerical value to should the residential quarter default detection threshold value that finds;

Step 85, travelling carriage selects minimum value to receive the TOA value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 86, the TOA value that travelling carriage will be selected for each adjacent cell of self current place Serving cell, respectively with the difference of the TOA value of selecting for self current place Serving cell, be defined as the OTDOA of each adjacent cell of interior self the current place Serving cell of this locating periodically;

Step 87, travelling carriage will be in this locating periodicallies, and the OTDOA of each adjacent cell of self current place Serving cell of determining reports SMLC by RNC;

Step 88, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the OTDOA of each adjacent cell of the current place of the travelling carriage Serving cell that receives.

Wherein among the corresponding embodiment one targeting scheme and the mobile station equipment that proposes also within the protection range of the embodiment of the invention.

Embodiment six, come to determine according to above-mentioned the second the realization principle of the method for TOA by NodeB, the TOA value (namely adopting the UTDOA locate mode) of determining corresponding each residential quarter in each locating periodically positions processing, specifically please refer to shown in Figure 9ly, and its specific implementation process is as follows:

Step 90 after RNC receives the running fix request of core net, transmits control message to a plurality of NodeB to the travelling carriage transmitted signal, requires each NodeB in each locating periodically, reports once the TOA value that self transmits a signal to travelling carriage;

Step 91, each NodeB detects respectively the TOA that travelling carriage receives the signal that self sends at different time in a locating periodically, obtain a plurality of TOA values;

Step 92, each NodeB adds up the inferior numerical value that identical value occurs in a plurality of TOA values that obtain;

Step 93, the detection threshold value that each NodeB safeguards in advance according to self compares in each time numerical value that above-mentioned statistics obtains the inferior numerical value greater than detection threshold value;

Step 94, each NodeB selects minimum value as the TOA value that reports SMLC in this locating periodically, and reports SMLC by the TOA value that RNC will select in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 95, SMLC is according in a locating periodically, the TOA value that reports respectively to each NodeB of travelling carriage transmitted signal, the TOA value that NodeB in the Serving cell of the current place of travelling carriage is reported, respectively with each adjacent cell of the current place of travelling carriage Serving cell in the difference of the TOA value that reports of NodeB, be defined as the UTDOA of each adjacent cell of the current place of travelling carriage Serving cell;

Step 96, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the UTDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment six targeting scheme and the base station equipment that proposes also within the protection range of the embodiment of the invention.

Embodiment seven, come to determine according to above-mentioned the second the realization principle of the method for TOA by SMLC, determine that in each locating periodically the TOA value of corresponding each residential quarter positions processing, specifically please refer to shown in Figure 10ly, and its specific implementation process is as follows:

Step 100, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports respectively a plurality of TOA values for each respective cell;

Step 101, here suppose that travelling carriage receives the signal that M the base station in the residential quarter issues simultaneously, then travelling carriage is carried out respectively for each residential quarter: in a locating periodically, different time respectively to this residential quarter in the signal that sends of the base station TOA that arrives self detect, thereby in this locating periodically, obtain a plurality of TOA values that should the residential quarter;

Step 102, travelling carriage will be in this locating periodically, and a plurality of TOA values that detect respectively for each residential quarter report SMLC by RNC;

Step 103, SMLC carries out respectively for each adjacent cell of travelling carriage current place Serving cell and current service cell in this locating periodically: in to a plurality of TOA values that should the residential quarter receive, add up the inferior numerical value that identical value occurs;

Step 104, SMLC is according to the numbering of this residential quarter, in the corresponding relation of the cell number of safeguarding in advance and detection threshold value, finds detection threshold value that should the residential quarter;

Step 105, SMLC compares in each time numerical value that above-mentioned statistics obtains the inferior numerical value to should the residential quarter default detection threshold value that finds greater than above-mentioned;

Step 106, SMLC selects minimum value to receive the TOA value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 107, the TOA value that SMLC will select respectively for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the TOA value of selecting for the current place of travelling carriage Serving cell, be defined as the TDOA of each adjacent cell of the current place of travelling carriage Serving cell respectively;

Step 108, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the TDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment seven targeting scheme and the SMLC equipment that proposes also within the protection range of the embodiment of the invention.

Embodiment eight, come to determine according to above-mentioned the second the realization principle of the method for TOA by SMLC, determine that in each locating periodically the TOA value of corresponding each residential quarter positions processing, specifically please refer to shown in Figure 11ly, and its specific implementation process is as follows:

Step 110, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports respectively a plurality of TDOA values for each respective cell;

Step 111, with the existing techniques in realizing principle, travelling carriage is determined a plurality of TOA values for self current place Serving cell in a locating periodically, and determines a plurality of TDOA values corresponding to each adjacent cell difference for current service cell;

The a plurality of TOA values for self current place Serving cell that step 112, travelling carriage will be determined, and for each adjacent cell of current service cell respectively corresponding a plurality of TDOA values report SMLC by RNC;

Step 113, the a plurality of TOA values for current place Serving cell that SMLC reports for travelling carriage respectively, with a plurality of TDOA values corresponding to each adjacent cell difference for current service cell, determine in this locating periodically, each adjacent cell is a plurality of TOA values of correspondence respectively, determine that wherein mode illustrates with a following example:

Step 114, SMLC carries out respectively for each adjacent cell of travelling carriage current place Serving cell and current service cell: in should a residential quarter determinate multitudes TOA value, add up the inferior numerical value that identical value occurs;

Step 115, SMLC is according to the numbering of this residential quarter, in the corresponding relation of the cell number of safeguarding in advance and detection threshold value, finds detection threshold value that should the residential quarter;

Step 116, SMLC compares in each time numerical value that above-mentioned statistics obtains greater than at the above-mentioned inferior numerical value to should the residential quarter default detection threshold value that finds;

Step 117, SMLC selects minimum value to receive the TOA value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 118, the TOA value that SMLC will select respectively for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the TOA value of selecting for the current place of travelling carriage Serving cell, be defined as the TDOA of each adjacent cell of the current place of travelling carriage Serving cell respectively;

Step 119, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the UTDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment eight targeting scheme and the SMLC equipment that proposes also within the protection range of the embodiment of the invention.

The third of embodiment of the invention proposition determined the scheme of signal transmission delay, its handling process of scheme of determining signal transmission delay to the second of above-mentioned introduction is similar, this the third determine TOA the step 70 of scheme in handling above-mentioned Fig. 7～73 after, can be in the corresponding identical value that occurs of the inferior numerical value that compares, select minimum TOA, and according to the TOA value of selecting and in a plurality of TOA values that detect to obtain less than the time delay value of the TOA value of this selection, determine that in this locating periodically travelling carriage receives the actual TOA value of the signal of base station transmission in this residential quarter.

Wherein according to the TOA value selected and in a plurality of TOA values that detect acquisition less than the time delay value of the TOA value of this selection, determine that in this locating periodically travelling carriage receives the actual TOA value of the signal that the base station sends in this residential quarter, can but be not limited to following two kinds of implementations:

Method one: the TOA that calculate to select and in all TOA values that obtain less than the mean value of the time delay value of the TOA value of this selection, the mean value that calculates is received the TOA value of the signal of base station transmission in this residential quarter as travelling carriage in this locating periodically.For example select

G_{T_{n}}^{i} > Γ^{i}

Corresponding identical value T _n ⁱThe value T of middle minimum _Min ⁱ, then to the T of this selection _Min ⁱValue and all

T_{n}^{i} < T_{\min}^{i}

Measured value ask arithmetic mean to process, thereby obtain T _Ave ⁱ, and with this T _Ave ⁱValue is as in this locating periodically, the actual TOA value that arrives for this cell detection.

For concreteness, suppose that in a locating periodically base station in the residential quarter has been carried out 5 times to the TOA of travelling carriage transmitted signal to be detected, obtain 5 TOA values, wherein in these 5 TOA values, the TOA measured value

T_{n}^{i} = 5 ms

T_{n}^{i} = 1 ms

T_{n}^{i} = 2 ms

The corresponding measurement that occurs time numerical value is 2 times, and hypothesis is to should the default detection threshold value Γ in residential quarter ⁱBe 1 time, then can determine the TOA measured value

T_{n}^{i} = 5 ms

T_{n}^{i} = 2 ms

The corresponding measurement that occurs time numerical value be 2 times respectively greater than detection threshold value Г ⁱBe 1 time, then can be at the TOA measured value

T_{n}^{i} = 5 ms

With the TOA measured value

T_{n}^{i} = 2 ms

Two values in select a minimum value, namely select 2ms, then determine in 5 TOA values that detect, to have measured value

T_{n}^{i} = 1 ms

Less than the 2ms that selects, therefore ask for the arithmetic mean of 1ms and 2ms, be 1.5ms receives the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically actual TOA value.

The mode of employing method one, so that determining the second of the relatively above-mentioned proposition of scheme of TOA, the third of embodiment of the invention proposition determine the scheme of TOA, difference is the signal transmission delay between base station and the travelling carriage as far as possible to less value orientation average, this is because in the very serious situation of non-direct projection environment, detected TOA value occurring can be very little greater than the probability of the TOA value in the actual direct projection environment, need to select as far as possible the TOA minimum peak this moment, and this scheme more is applicable in that non-direct projection ambient probability to occur very high and occur using in the very low localizing environment of direct projection ambient probability.

Method two: the TOA that calculate to select, with in all TOA values that obtain less than the root mean square of the time delay value of the TOA value of this selection, the difference of the TOA that selects and the root mean square that calculates is received the actual TOA value of the signal of base station transmission in this residential quarter as travelling carriage in this locating periodically.For example select

G_{T_{n}}^{i} > Γ^{i}

Corresponding identical value T _n ⁱThe value T of middle minimum _Min ⁱ, then calculate T _Min ⁱWith all

T_{n}^{i} < T_{\min}^{i}

The root-mean-square value σ of measured value ⁱ, and then ask for T _Min ⁱWith σ ⁱDifference

T_{ls}^{i} = T_{\min}^{i} - \sqrt{σ^{i}},

And with this T _Ls ⁱValue is as in this locating periodically, the actual TOA value that arrives for this cell detection.

For concreteness, suppose that in a locating periodically base station in the residential quarter has been carried out 6 times to the TOA of travelling carriage transmitted signal to be detected, obtain 6 TOA values, wherein in these 6 TOA values, the TOA measured value

T_{n}^{i} = 5 ms

T_{n}^{i} = 1 ms

T_{n}^{i} = 3 ms

T_{n}^{i} = 2 ms

The corresponding measurement that occurs time numerical value is 1 time, and hypothesis is to should the default detection threshold value Г in residential quarter ⁱBe 1 time, then can determine the TOA measured value

T_{n}^{i} = 5 ms

T_{n}^{i} = 3 ms

T_{n}^{i} = 5 ms

With the TOA measured value

T_{n}^{i} = 3 ms

Two values in select a minimum value, namely select 3ms, then determine in 5 TOA values that detect, to have measured value

T_{n}^{i} = 1 ms

With

T_{n}^{i} = 2 ms

Less than the 3ms that selects, therefore ask for the root-mean-square value of 3ms and 1ms, 2ms

σ = \sqrt{\frac{{(3 - 1)}^{2} + {(3 - 2)}^{2}}{2}} = 1.5,

And then 3ms-1.5ms=1.5ms is received the actual TOA value of the signal that base station in this residential quarter sends as travelling carriage in this locating periodically.

Wherein the purpose of the method two and said method one all is that the signal transmission delay between base station and the travelling carriage is chosen minimum reliable value as far as possible, difference is that employed computational methods are different, in actual applications, can be according to the corresponding computational methods of test effect selection of reality.

The second of introducing in the above determines that the scheme of TOA and the third determine in the scheme of TOA, if in the not serious situation of non-direct projection environment, be suburban environment such as residential quarter environment of living in, preferably determine that with the first the scheme of TOA determines the TOA of this residential quarter, simultaneously for the detection threshold value Г of this residential quarter ⁱGet higher value; If in the comparatively serious situation of non-direct projection environment, such as abominable urban area circumstance, preferably determine that with the third scheme of TOA determines the TOA of this residential quarter, simultaneously for the detection threshold value Γ of this residential quarter ⁱGet smaller value.

Determine that with above-mentioned the third device corresponding to the method for signal transmission delay is also within the protection range of the embodiment of the invention.

In addition, the second of above-mentioned introduction determines that the scheme of TOA and the third determine the scheme of TOA, the first is determined the scheme of TOA relatively, can in a plurality of TOA values that detection obtains, select on the basis of smaller value as far as possible, use a detection threshold value to limit, therefore so that the TOA value of selecting is more accurate.

Wherein determine the realization principle of the method for signal transmission delay based on above-mentioned the third, the embodiment of the invention proposes the embodiment that travelling carriage is positioned of four kinds of correspondences here, and the below will introduce respectively.

Embodiment nine, determine the realization principle of the method for TOA by travelling carriage according to above-mentioned the third, the TOA value (namely adopting the OTDOA locate mode) of determining corresponding each residential quarter in each locating periodically positions processing, specifically please refer to shown in Figure 12ly, and its specific implementation process is as follows:

Step 120, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports once the OTDOA for corresponding each residential quarter;

Step 121, here suppose that travelling carriage receives the signal that M the base station in the residential quarter issues simultaneously, in a locating periodically, travelling carriage is carried out for each residential quarter in M the residential quarter: detect respectively the TOA that signal that the base station in this residential quarter sends arrives travelling carriage at different time;

Step 122, travelling carriage for this cell detection to a plurality of TOA values in, add up the inferior numerical value that identical value occurs;

Step 123, travelling carriage be according to the numbering of this residential quarter, in the corresponding relation of the cell number of safeguarding in advance and detection threshold value, finds detection threshold value that should the residential quarter;

Step 124, travelling carriage compare in each time numerical value that above-mentioned statistics obtains greater than at the above-mentioned inferior numerical value to should the residential quarter default detection threshold value that finds;

Step 125, travelling carriage is selected minimum TOA value in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 126, travelling carriage according to the TOA value of selecting and in all TOA values that obtain less than the time delay value of the TOA value of this selection, determine the actual TOA value that the interior travelling carriage of this locating periodically receives the signal of base station transmission in this residential quarter; Concrete determine that method please refer to and above-mentionedly determine the method one and the method two that provide in the scheme of TOA introducing in detail the third;

Step 127, the TOA value that travelling carriage will be selected for each adjacent cell of self current place Serving cell, respectively with the difference of the TOA value of selecting for self current place Serving cell, be defined as the OTDOA of each adjacent cell of interior self the current place Serving cell of this locating periodically;

Step 128, travelling carriage will be in this locating periodicallies, and the OTDOA of each adjacent cell of self current place Serving cell of determining reports SMLC by RNC;

Step 129, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the OTDOA of each adjacent cell of the current place of the travelling carriage Serving cell that receives.

Wherein among the corresponding embodiment nine targeting scheme and the mobile station equipment that proposes also within the protection range of the embodiment of the invention.

Embodiment ten, determine the realization principle of the method for TOA by NodeB according to above-mentioned the third, the TOA value (namely adopting the UTDOA locate mode) of determining corresponding each residential quarter in each locating periodically positions processing, specifically please refer to shown in Figure 13ly, and its specific implementation process is as follows:

Step 130 after RNC receives the running fix request of core net, transmits control message to a plurality of NodeB to the travelling carriage transmitted signal, requires each NodeB in each locating periodically, reports once the TOA value that self transmits a signal to travelling carriage;

Step 131, each NodeB detects respectively the TOA that travelling carriage receives the signal that self sends at different time in a locating periodically, obtain a plurality of TOA values;

Step 132, each NodeB adds up the inferior numerical value that identical value occurs in a plurality of TOA values that obtain;

Step 133, the detection threshold value that each NodeB safeguards in advance according to self compares in each time numerical value that above-mentioned statistics obtains the inferior numerical value greater than detection threshold value;

Step 134, each NodeB selects minimum TOA value in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 135, each NodeB according to the TOA value of selecting and in all TOA values that obtain less than the time delay value of the TOA value of this selection, determine the actual TOA value of the signal of the interior travelling carriage reception of this locating periodically self transmission; Concrete determine that method please refer to and above-mentionedly determine the method one and the method two that provide in the scheme of TOA introducing in detail the third;

Step 136, the actual TOA value that each NodeB will determine reports SMLC by RNC;

Step 137, SMLC is according in a locating periodically, the TOA value that reports respectively to each NodeB of travelling carriage transmitted signal, the TOA value that NodeB in the Serving cell of the current place of travelling carriage is reported, respectively with each adjacent cell of the current place of travelling carriage Serving cell in the difference of the TOA value that reports of NodeB, be defined as the UTDOA of each adjacent cell of the current place of travelling carriage Serving cell;

Step 138, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the UTDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment ten targeting scheme and the base station equipment that proposes also within the protection range of the embodiment of the invention.

Embodiment 11, come to determine the realization principle of the method for TOA according to above-mentioned the third by SMLC, determine that in each locating periodically the TOA value of corresponding each residential quarter positions processing, specifically please refer to shown in Figure 14ly, and its specific implementation process is as follows:

Step 140, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports respectively a plurality of TOA values for each respective cell;

Step 141, here suppose that travelling carriage receives the signal that M the base station in the residential quarter issues simultaneously, then travelling carriage is carried out respectively for each residential quarter: in a locating periodically, different time respectively to this residential quarter in the signal that sends of the base station TOA that arrives self detect, thereby in this locating periodically, obtain a plurality of TOA values that should the residential quarter;

Step 142, travelling carriage will be in this locating periodically, and a plurality of TOA values that detect respectively for each residential quarter report SMLC by RNC;

Step 143, SMLC carries out respectively for each adjacent cell of travelling carriage current place Serving cell and current service cell in this locating periodically: in to a plurality of TOA values that should the residential quarter receive, add up the inferior numerical value that identical value occurs;

Step 144, SMLC is according to the numbering of this residential quarter, in the corresponding relation of the cell number of safeguarding in advance and detection threshold value, finds detection threshold value that should the residential quarter;

Step 145, SMLC compares in each time numerical value that above-mentioned statistics obtains greater than at the above-mentioned inferior numerical value to should the residential quarter default detection threshold value that finds;

Step 146, SMLC selects minimum TOA value in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 147, SMLC according to the TOA value of selecting and in to a plurality of TOA values that should the residential quarter receive less than the time delay value of the TOA value of this selection, determine the actual TOA value that in this locating periodically travelling carriage receives the signal of base station transmission in this residential quarter; Concrete determine that method please refer to and above-mentionedly determine the method one and the method two that provide in the scheme of TOA introducing in detail the third;

Step 148, the TOA value that SMLC will determine respectively for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the TOA value of determining for the current place of travelling carriage Serving cell, be defined as the TDOA of each adjacent cell of the current place of travelling carriage Serving cell respectively;

Step 149, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the TDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment 11 targeting scheme and the SMLC equipment that proposes also within the protection range of the embodiment of the invention.

Embodiment 12, come to determine the realization principle of the method for TOA according to above-mentioned the third by SMLC, determine that in each locating periodically the TOA value of corresponding each residential quarter positions processing, specifically please refer to shown in Figure 15ly, and its specific implementation process is as follows:

Step 150, RNC transmits control message to travelling carriage after receiving the running fix request of core net, requires travelling carriage in each locating periodically, reports respectively a plurality of TDOA values for each respective cell;

Step 151, with the existing techniques in realizing principle, travelling carriage is determined a plurality of TOA values for self current place Serving cell in a locating periodically, and determines a plurality of TDOA values corresponding to each adjacent cell difference for current service cell;

The a plurality of TOA values for self current place Serving cell that step 152, travelling carriage will be determined, and for each adjacent cell of current service cell respectively corresponding a plurality of TDOA values report SMLC by RNC;

Step 153, the a plurality of TOA values for current place Serving cell that SMLC reports for travelling carriage respectively, with a plurality of TDOA values corresponding to each adjacent cell difference for current service cell, determine that in this locating periodically each adjacent cell is a plurality of TOA values of correspondence respectively;

Step 154, SMLC carries out respectively for each adjacent cell of travelling carriage current place Serving cell and current service cell: in should a residential quarter determinate multitudes TOA value, add up the inferior numerical value that identical value occurs;

Step 155, SMLC is according to the numbering of this residential quarter, in the corresponding relation of the cell number of safeguarding in advance and detection threshold value, finds detection threshold value that should the residential quarter;

Step 156, SMLC compares in each time numerical value that above-mentioned statistics obtains greater than at the above-mentioned inferior numerical value to should the residential quarter default detection threshold value that finds;

Step 157, SMLC selects minimum TOA value in the corresponding identical value that occurs of the above-mentioned inferior numerical value that compares;

Step 158, SMLC according to the TOA value of selecting and in to a plurality of TOA values of should the residential quarter determining less than the time delay value of the TOA value of this selection, determine the actual TOA value that in this locating periodically travelling carriage receives the signal of base station transmission in this residential quarter; Concrete determine that method please refer to and above-mentionedly determine the method one and the method two that provide in the scheme of TOA introducing in detail the third;

Step 159, the TOA value that SMLC will determine respectively for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the TOA value of determining for the current place of travelling carriage Serving cell, be defined as the TDOA of each adjacent cell of the current place of travelling carriage Serving cell respectively;

Step 160, SMLC adopts hyperboloid algorithm or hyperbola algorithm to calculate the residing positional information of travelling carriage in this locating periodically according to the UTDOA of each adjacent cell of the current place of the travelling carriage Serving cell of determining.

Wherein among the corresponding embodiment 12 targeting scheme and the SMLC equipment that proposes also within the protection range of the embodiment of the invention.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. the method for a definite signal transmission delay is characterized in that, in a locating periodically, carries out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively:

At different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values;

In at least two signal transmission delay values that obtain, add up respectively the inferior numerical value that identical value occurs;

In the corresponding identical value that occurs of the inferior numerical value that compares, select minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

2. the device of a definite signal transmission delay is characterized in that, comprising:

The propagation delay value obtains the unit, be used in a locating periodically, carry out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively: at different time, detect respectively the signal transmission delay that described travelling carriage receives the signal that the base station sends in this residential quarter, obtain at least two signal transmission delay values;

Statistic unit is used for obtaining at least two signal transmission delay values that the unit obtains in the propagation delay value, adds up respectively the inferior numerical value that identical value occurs;

Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset;

Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, selects minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

3. the method that travelling carriage is positioned is characterized in that, comprising:

4. a mobile station equipment is characterized in that, comprising:

Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, selects minimum value to receive the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically;

The signal arrival time difference determining unit, be used for the signal transmission delay value of selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively;

Report the unit, the signal arrival time difference that is used for each adjacent cell of the current place of travelling carriage Serving cell that the signal arrival time difference determining unit is determined reports Serving Mobile Location Center equipment.

5. the method that travelling carriage is positioned is characterized in that, comprising:

6. a base station equipment is characterized in that, comprising:

The propagation delay value obtains the unit, is used in a locating periodically, detects respectively the signal transmission delay that travelling carriage receives the signal of described base station equipment transmission at different time, obtains at least two signal transmission delay values;

Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value of the threshold value of presetting;

Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, selects minimum value as the signal transmission delay value that will report Serving Mobile Location Center in this locating periodically;

Report the unit, the signal transmission delay value that is used for selected cell is selected reports Serving Mobile Location Center.

7. the method that travelling carriage is positioned is characterized in that, comprising:

8. a Serving Mobile Location Center equipment is characterized in that, comprising:

Receiving element is used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal transmission delay values that report respectively for each adjacent cell of current service cell; And

Statistic unit is used for carrying out respectively for each adjacent cell of current service cell and current service cell in this locating periodically: at least two signal transmission delay values that correspondence receives, add up respectively the inferior numerical value that identical value occurs;

Comparing unit is used for comparing inferior numerical value that the statistic unit statistics obtains greater than the inferior numerical value to the threshold value should the residential quarter preset; And

The signal arrival time difference determining unit, be used for the signal transmission delay value of selected cell for each adjacent cell selection of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of selecting for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And

9. the method that travelling carriage is positioned is characterized in that, comprising:

10. a Serving Mobile Location Center equipment is characterized in that, comprising:

Receiving element is used at least two signal transmission delay values that receiving mobile reports for current service cell in a locating periodically, and at least two signal arrival time differences that report respectively for each adjacent cell of current service cell; And

Propagation delay value determining unit, be used in this locating periodically, each adjacent cell for current service cell is carried out respectively: at least two signal arrival time differences that the receiving element correspondence is received, respectively with at least two signal transmission delay values of the corresponding current service cell that receives and, be defined as in this locating periodically at least two signal transmission delay values for this adjacent cell;

Statistic unit, for at least two signal transmission delay values that receive for the corresponding current service cell of receiving element, with at least two signal transmission delay values determining respectively for corresponding described each adjacent cell of propagation delay value determining unit, carry out respectively: at least two signal transmission delay values of correspondence, add up respectively the inferior numerical value that identical value occurs; And

11. the method for a definite signal transmission delay is characterized in that, in a locating periodically, carries out for the residential quarter to each place, base station of travelling carriage transmitted signal respectively:

According to the signal transmission delay value of selecting and in the signal transmission delay value that obtains less than the time delay value of the signal transmission delay value of this selection, determine that travelling carriage in this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter.

12. method as claimed in claim 11, it is characterized in that, according to the signal transmission delay value of selecting with less than the time delay value of the signal transmission delay value of this selection, determine that travelling carriage in this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter, specifically comprises:

The signal transmission delay value of calculate selecting, in the signal transmission delay value that obtains less than the mean value of the time delay value of the signal transmission delay value of this selection; And

The mean value that calculates is received the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

13. method as claimed in claim 11, it is characterized in that, according to the signal transmission delay value of selecting with less than the time delay value of the signal transmission delay value of this selection, determine that travelling carriage in this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter, specifically comprises:

The signal transmission delay value of calculate selecting with in the signal transmission delay value that obtains less than the root mean square of the time delay value of the signal transmission delay value of this selection; And

Poor with the signal transmission delay value of selecting and the root mean square that calculates receives the signal transmission delay value of the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

14. the device of a definite signal transmission delay is characterized in that, comprising:

Selected cell for the corresponding identical value that occurs of the inferior numerical value that compares at comparing unit, is selected minimum signal transmission delay value;

Propagation delay value determining unit, be used for according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that obtains less than the signal transmission delay value of this selection, determine that the interior travelling carriage of this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter.

15. device as claimed in claim 14, it is characterized in that, described propagation delay value determining unit calculates signal transmission delay value that selected cell selects, in the signal transmission delay value that obtains less than the mean value of the time delay value of the signal transmission delay value of this selection, and the signal transmission delay value that the mean value that calculates is received the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

16. device as claimed in claim 14, it is characterized in that, described propagation delay value determining unit calculate signal transmission delay value that selected cell selects with in the signal transmission delay value that obtains less than the root mean square of the time delay value of the signal transmission delay value of this selection, and the signal transmission delay value that the difference of the signal transmission delay value of selecting and the root mean square that calculates is received the signal that the base station sends in this residential quarter as travelling carriage in this locating periodically.

17. the method that travelling carriage is positioned is characterized in that, comprising:

18. a mobile station equipment is characterized in that, comprising:

Propagation delay value determining unit, be used for according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that obtains less than the signal transmission delay value of this selection, determine that the interior travelling carriage of this locating periodically receives the signal transmission delay value of the signal that the base station sends in this residential quarter;

The signal arrival time difference determining unit, for the signal transmission delay value that propagation delay value determining unit is determined for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of determining for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively;

19. the method that travelling carriage is positioned is characterized in that, comprising:

20. a base station equipment is characterized in that, comprising:

Propagation delay value determining unit, be used for determining to report in this locating periodically the signal transmission delay value of Serving Mobile Location Center according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that obtains less than the signal transmission delay value of this selection;

Report the unit, the signal transmission delay value that is used for propagation delay value determining unit is determined reports Serving Mobile Location Center.

21. the method that travelling carriage is positioned is characterized in that, comprising:

22. a Serving Mobile Location Center equipment is characterized in that, comprising:

Propagation delay value determining unit, be used for according to the signal transmission delay value of selected cell selection with at the time delay value of the signal transmission delay value that receives less than the signal transmission delay value of this selection, determine the signal transmission delay value that the interior travelling carriage of this locating periodically receives the signal that the base station sends in this residential quarter;

The signal arrival time difference determining unit, for the signal transmission delay value that propagation delay value determining unit is determined for each adjacent cell of the current place of travelling carriage Serving cell, with the difference of the signal transmission delay value of determining for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively; And

23. the method that travelling carriage is positioned is characterized in that, comprising:

24. a Serving Mobile Location Center equipment is characterized in that, comprising:

The signal arrival time difference determining unit, be used for signal transmission delay value that each adjacent cell for the current place of travelling carriage Serving cell that propagation delay value determining unit is determined is selected, with the difference of the signal transmission delay value of determining for the current place of travelling carriage Serving cell, be defined as the signal arrival time difference of each adjacent cell of the current place of travelling carriage Serving cell respectively;