The wireless location method of the multiple base stations united angle of arrival and system
Technical field
The present invention relates in the wireless system network interface message and wireless location method and system, relate in particular to utilize and arrive network interface message and wireless location method and the system that angle positions between many base stations and the mobile phone based on the location, base station.
Background technology
Along with the development of wireless communication technique, particularly the U.S. proposes after the emergency position service request, and the wireless location service more and more receives the concern of industry.
According to whether needing the participation of mobile phone to classify, mainly be divided into two types for the location technology of collecting: the mobile phone location technology that needs the mobile phone location technology of mobile phone reporting information and do not need the mobile phone reporting information.The former, network system need be passed through the signaling mobile phone, and needs mobile phone initiatively to report relevant metrical information just can determine the particular location of mobile phone.So, mobile phone is full of ideas separates it and is in the state of being positioned.And mobile phone also can need stop under the prerequisite that is positioned the user, by not reporting relevant metrical information and reporting the method for false metrical information, makes the privacy of positional information of oneself be protected.But for the latter, owing to do not need the active of mobile phone to participate in, mobile phone can't confirm whether it is in the state that is positioned, and this protection for mobile phone location has caused certain difficulty.A typical case of these class methods just is based on the localization method of cell id.
According to being decided to be reference signal classification, mainly be divided into 3 types: based on the location of mobile phone cell id, based on the location of base station signal/mobile phone signal and based on the location of satellite navigation system for the location technology of collecting.Wherein, relatively poor based on the localization method precision of mobile phone cell id; Localization method based on satellite navigation system needs extra equipment and cost; Localization method based on base station signal/mobile phone signal does not need to add extras and have medium positioning accuracy substantially.
The method that tradition is carried out wireless location based on the arrival angle of base station measurement mobile phone signal as shown in Figure 1.At least 2 of systems have 111,112 and one ones of base stations that arrive the angle measurement capability and have the mobile phone 12 that transmits, there are the signal 131,132 of radio transmission in base station and mobile phone, and the signal arrival angle that the upward signal that correspondence measures arrives different base station is respectively q1, q2.All obtain is starting point with the base station, be that the position of intersecting point of the ray of transmit direction is the mobile phone correspondence position with the angle of arrival.The base station reports the arrival angle of the mobile phone signal of its measurement to give network system, and then network just can calculate the position of mobile phone according to these values.Fig. 2 is the vertical view of Fig. 1.
The third generation (3G, 3rd Generation) mobile communication system is the mobile communication system that present most countries in the world and area are all being used or will used.3GPP (3rd GenerationPartnership Project) has finished all relevant standard operations as the normal structure of 3G.The suggestion of each side has been adopted in relevant wireless location aspect, 3GPP tissue, has adopted whole three kinds of station-keeping modes in its standard: based on the location of mobile phone cell id, based on the location of base station signal/mobile phone signal and based on the location of satellite navigation system.For location, adopted the method that reports of measuring of collecting based on base station signal/mobile phone signal.By each signal of base station of mobile phone for measuring time of advent, and by the signaling report network, network is then finished the function of calculating mobile phone location.
Traditional wireless location method sees also Fig. 3, is described below.
Step S200: core net 20 issues Location Request to service wireless network controller 21.
Step S201: service wireless network controller 21 issues the indirect time receiving of base station to mobile phone 23 and prolongs the request of measuring.
Step S202: mobile phone 23 carries out relevant the measurement.
Step S203: mobile phone 23 prolongs the request of measurement to the indirect time receiving of service wireless network controller 21 reporting base stations.
Step S204: service wireless network controller 21 is measured request to the 22 times signalling angles of arrival in base station.The signal angle of arrival is measured in the request and is represented the signal that needs are measured with dedicated channel mark mark, because relevant configuration information has been stored in base station 22 when setting up this dedicated channel before this, so base station 22 can be measured on corresponding Radio Resource, obtains effective measurement result.
Step S205: the relevant measurement carried out in base station 22.
Step S206: base station 22 reports the signal angle of arrival to measure to service wireless network controller 21.
Step S207: service wireless network controller 21 carries out position calculation.
Step S208: service wireless network controller 21 reports the location estimation result to core net 20.
In real system, for needing at least two base stations, the position of measuring mobile phone 23 participates in, and one of them base station is the serving BS that exists wireless signaling to be connected with mobile phone, other assistant base stations for not existing wireless signaling to connect.Serving BS has the configuring condition information of mobile phone upward signal owing to the channel configuration signaling.There are not at present means to obtain the configuring condition information of mobile phone upward signal as yet for assistant base station.Assistant base station can't carry out corresponding mobile phone arrival angular surveying under these circumstances, thereby can't finish location tasks.Therefore need other information auxiliary, for example serving BS signal Loop Round Trip Time or serving BS and assistant base station downstream signal arrive the time difference of mobile phone, to finish location work.The acquisition of these supplementarys has increased the complexity of measuring, and has reduced the efficient of location.
Summary of the invention
The objective of the invention is to address the above problem, a kind of wireless location method of the multiple base stations united angle of arrival is provided, make service wireless network controller can obtain the signal angle of arrival of corresponding mobile phone signal simultaneously, thereby carry out the location estimation that relevant calculation obtains this mobile phone for serving BS and assistant base station.
Another object of the present invention is to provide a kind of wireless location system of the multiple base stations united angle of arrival, make the service wireless network controller in the system can obtain the signal angle of arrival of corresponding mobile phone signal simultaneously, thereby carry out the location estimation that relevant calculation obtains this mobile phone for serving BS and assistant base station.
Technical scheme of the present invention is: the present invention has disclosed a kind of wireless location method of the multiple base stations united angle of arrival, comprising:
Core net issues Location Request to service wireless network controller;
This service wireless network controller signalling angle of arrival under serving BS is measured request;
This serving BS is measured;
This serving BS reports the signal angle of arrival to measure to this service wireless network controller;
This service wireless network controller is measured request with form signalling angle of arrival under at least one assistant base station of network interface message, this network interface message comprises sign, measurement type and measuring-signal configuration information, wherein the configuring condition information of this measuring-signal configuration information indicating target mobile phone upward signal measured;
Those assistant base stations are measured;
Those assistant base stations report the signal angle of arrival to measure to this service wireless network controller;
This service wireless network controller carries out position calculation;
This service wireless network controller reports target mobile phones location estimation result to this core net.
The wireless location method of the above-mentioned multiple base stations united angle of arrival, wherein, those assistant base stations are the base station with this serving BS neighbor cell.
The wireless location method of the above-mentioned multiple base stations united angle of arrival, wherein, this measuring-signal configuration information comprises signal frequency point, signal scrambling code number and signaling channel sign indicating number number in the WCDMA system.
The wireless location method of the above-mentioned multiple base stations united angle of arrival, wherein, this measuring-signal configuration information comprises signal frequency point, signal transmission time slot number, signaling channel sign indicating number number, signal middle trained sequence type, signal middle trained sequence number and signal middle trained sequence offset in the TD-SCDMA system.
The present invention has also disclosed a kind of wireless location method of the multiple base stations united angle of arrival, comprising:
Core net issues Location Request to service wireless network controller;
This service wireless network controller is measured request with form signalling angle of arrival under at least one assistant base station of network interface message, this network interface message comprises sign, measurement type and measuring-signal configuration information, wherein the configuring condition information of this measuring-signal configuration information indicating target mobile phone upward signal measured;
Those assistant base stations are measured;
Those assistant base stations report the signal angle of arrival to measure to this service wireless network controller;
This service wireless network controller signalling angle of arrival under serving BS is measured request;
This serving BS is measured;
This serving BS reports the signal angle of arrival to measure to this service wireless network controller;
This service wireless network controller carries out position calculation;
This service wireless network controller reports target mobile phones location estimation result to this core net.
The wireless location method of the above-mentioned multiple base stations united angle of arrival, wherein, those assistant base stations are the base station with this serving BS neighbor cell.
The wireless location method of the above-mentioned multiple base stations united angle of arrival, wherein, this measuring-signal configuration information comprises signal frequency point, signal scrambling code number and signaling channel sign indicating number number in the WCDMA system.
The wireless location method of the above-mentioned multiple base stations united angle of arrival, wherein, this measuring-signal configuration information comprises signal frequency point, signal transmission time slot number, signaling channel sign indicating number number, signal middle trained sequence type, signal middle trained sequence number and signal middle trained sequence offset in the TD-SCDMA system.
The present invention has disclosed a kind of wireless location system of the multiple base stations united angle of arrival, comprising:
Core net sends the wireless location request, finishes the initiation of location, exports after receiving the location estimation result;
Service wireless network controller is finished the Access Layer flow process, receives the wireless location request that this core net is sent, and transmits a signal to the angular measurement request that reaches;
Serving BS, with these service wireless network controller wireless connections, the signal angle of arrival that receives this service wireless network controller is measured request, finishes the measurement of the signal angle of arrival, sends measurement result to this service wireless network controller;
At least one assistant base station, with these service wireless network controller wireless connections, receive this service wireless network controller and measure request with the signal angle of arrival of the form transmission of network interface message, finish the signal angle of arrival and measure the back to this service wireless network controller transmission measurement result, this service wireless network controller carries out location estimation in view of the above after receiving the signal angle of arrival measurement result that this serving BS and those assistant base stations report, and the location estimation result reported to this core net, this network interface message comprises measures sign, measure type and measuring-signal configuration information, wherein the configuring condition information of this measuring-signal configuration information indicating target mobile phone upward signal;
Mobile phone is according to the function of this service wireless network controller configuration transmit uplink signal, to this serving BS emission wireless signal.
The wireless location system of the above-mentioned multiple base stations united angle of arrival, wherein, this wireless location system also comprises:
At least one connects radio network controller, each connects radio network controller and connects at least one assistant base station separately, those connect the intermediary of radio network controller as connected those assistant base stations and this service wireless network controller, receiving this service wireless network controller measures request and is sent to those assistant base stations with the signal angle of arrival of the form transmission of network interface message, finish measuring process and angle of arrival measurement result is reported to this corresponding connection radio network controller by those assistant base stations, and this measurement result is reported to this service wireless network controller by this connection radio network controller, this service wireless network controller is according to the signal angle of arrival measurement result of this serving BS, the signal angle of arrival measurement result of direct-connected those assistant base stations and the signal angle of arrival measurement result that reports by this connection radio network controller, carry out location estimation, wherein the configuring condition information of this measuring-signal configuration information indicating target mobile phone upward signal.
The wireless location system of the above-mentioned multiple base stations united angle of arrival, wherein, this measuring-signal configuration information comprises signal frequency point, signal scrambling code number and signaling channel sign indicating number number in the WCDMA system.
The wireless location system of the above-mentioned multiple base stations united angle of arrival, wherein, this measuring-signal configuration information comprises signal frequency point, signal transmission time slot number, signaling channel sign indicating number number, signal middle trained sequence type, signal middle trained sequence number and signal middle trained sequence offset in the TD-SCDMA system.
The present invention contrasts prior art, following beneficial effect is arranged: the present invention is by setting up message at service wireless network controller between the assistant base station, this message comprises sign, measurement type and measuring-signal configuration information, wherein the configuring condition information of measuring-signal configuration information indicating target mobile phone upward signal measured.Service wireless network controller is measured request with form signalling angle of arrival under assistant base station of such network interface message.The present invention has remedied existing system can't carry out multiple base stations united signal angle of arrival mobile phone location defect, measure for the angle of arrival of signal specific by the configuration assistant base station, make service wireless network controller obtain the signal angle of arrival of corresponding mobile phone signal, thereby carry out the location estimation that relevant calculation obtains this mobile phone for serving BS and assistant base station.The present invention can reduce the measurement complexity, improves the efficient of wireless location.
Description of drawings
Fig. 1 is the schematic diagram of signal angle of arrival wireless location.
Fig. 2 is the vertical view of Fig. 1 schematic diagram.
Fig. 3 is the flow chart of traditional wireless location method.
Fig. 4 is the flow chart of first embodiment of the wireless location method of the multiple base stations united angle of arrival of the present invention.
Fig. 5 is the flow chart of second embodiment of the wireless location method of the multiple base stations united angle of arrival of the present invention.
Fig. 6 is the structure chart of first embodiment of the wireless location system of the multiple base stations united angle of arrival of the present invention.
Fig. 7 is the structure chart of second embodiment of the wireless location system of the multiple base stations united angle of arrival of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The present invention has disclosed a kind of network interface message, can be based upon between service wireless network controller and the base station.The structure of this network interface message is as follows:
{
Measure sign;
Measure type;
The measuring-signal configuration information;
}
The configuring condition information of measuring-signal configuration information indicating target mobile phone upward signal wherein.In WCDMA (Wideband Code Multiple Access, Wideband Code Division Multiple Access (WCDMA)) system, the measuring-signal configuration information comprises:
{
Signal frequency point;
Signal scrambling code number;
Signaling channel sign indicating number number;
}
For TD-SCDMA (Time Division-Synchronous Code DivisionMultiple Access, TD SDMA) system, the measuring-signal configuration information comprises:
{
Signal frequency point;
Signal transmission time slot number;
Signaling channel sign indicating number number;
Signal Midamble (middle trained sequence) type;
Signal Midamble number;
Signal Midamble skew;
}
The present invention utilizes the structure of above-mentioned network interface message, has disclosed a kind of method of multiple base stations united angle of arrival wireless location.Fig. 4 shows the process step of one of them embodiment, is the detailed description to each step below.
Step S300: core net 30 issues Location Request to service wireless network controller 31.
Step S301: service wireless network controller 31 with the relevant measuring command form of original system to the request of 32 times signalling angles of arrival of serving BS.
Step S302: serving BS 32 carries out relevant the measurement.
Step S303: serving BS 32 reports the signal angle of arrival to measure to service wireless network controller 31.
Step S304: service wireless network controller 31 is the measuring command form with the form of network interface message, measures request to 33 times signalling angles of arrival of at least one assistant base station.The assistant base station 33 here is generally the neighbor cell base station around the serving BS 32.
The structure of this network interface message is as follows:
{
Measure sign;
Measure type;
The measuring-signal configuration information;
}
The configuring condition information of measuring-signal configuration information indicating target mobile phone upward signal wherein.In WCDMA (Wideband Code Multiple Access, Wideband Code Division Multiple Access (WCDMA)) system, the measuring-signal configuration information comprises:
{
Signal frequency point;
Signal scrambling code number;
Signaling channel sign indicating number number;
}
For TD-SCDMA (Time Division-Synchronous Code DivisionMultiple Access, TD SDMA) system, the measuring-signal configuration information comprises:
{
Signal frequency point;
Signal transmission time slot number;
Signaling channel sign indicating number number;
Signal Midamble (middle trained sequence) type;
Signal Midamble number;
Signal Midamble skew;
}
Step S305: assistant base station 33 carries out relevant the measurement.
Step S306: assistant base station 33 reports the signal angle of arrival to measure to service wireless network controller 31.
Step S307: service wireless network controller 31 carries out position calculation according to the mobile phone signal angle of arrival measurement result of step S303 and S306.
Step S308: service wireless network controller 31 reports the position calculation result of target mobile phones to core net 30.
The present invention has disclosed the wireless location method of the multiple base stations united angle of arrival as shown in Figure 5 in addition, sees also Fig. 5, is the detailed description to each process step below, compares with Fig. 4 embodiment, only is the change of the execution sequencing of some step.
Step S400: core net 40 issues Location Request to service wireless network controller 41.
Step S401: service wireless network controller 41 is the measuring command form with the form of network interface message, measures request to 43 times signalling angles of arrival of at least one assistant base station.The assistant base station 43 here is generally the neighbor cell base station around the serving BS 42.
The structure of this network interface message is as follows:
{
Measure sign;
Measure type;
The measuring-signal configuration information;
}
The configuring condition information of measuring-signal configuration information indicating target mobile phone upward signal wherein.In WCDMA (Wideband Code Multiple Access, Wideband Code Division Multiple Access (WCDMA)) system, the measuring-signal configuration information comprises:
{
Signal frequency point;
Signal scrambling code number;
Signaling channel sign indicating number number;
}
For TD-SCDMA (Time Division-Synchronous Code DivisionMultiple Access, TD SDMA) system, the measuring-signal configuration information comprises:
{
Signal frequency point;
Signal transmission time slot number;
Signaling channel sign indicating number number;
Signal Midamble (middle trained sequence) type;
Signal Midamble number;
Signal Midamble skew;
}
Step S402: assistant base station 43 carries out relevant the measurement.
Step S403: assistant base station 43 reports the signal angle of arrival to measure to service wireless network controller 41.
Step S404: service wireless network controller 41 with the relevant measuring command form of original system to the request of 42 times signalling angles of arrival of serving BS.
Step S405: serving BS 42 carries out relevant the measurement.
Step S406: serving BS 42 reports the signal angle of arrival to measure to service wireless network controller 41.
Step S407: service wireless network controller 41 carries out position calculation according to the mobile phone signal angle of arrival measurement result of step S403 and S406.
Step S408: service wireless network controller 41 reports the position calculation result of target mobile phones to core net 40.
Based on the wireless location method of the above-mentioned multiple base stations united angle of arrival, the present invention has also disclosed the wireless location system based on the multiple base stations united angle of arrival of this method design.Fig. 6 shows a kind of embodiment of wireless location system of the present invention.
See also Fig. 6, system comprises core net 51, service wireless network controller 52, serving BS 53, a plurality of assistant base station 541~54m, mobile phone 55.Core net 51 is finished the initiation of positioning service and the output function of positioning result.Core net 51 sends Location Request to service wireless network controller 52, finishes the initiation of location, exports behind the location estimation result who receives service wireless network controller 52 outputs.
Service wireless network controller 52 is connected with core net 51, finishes the Access Layer flow process and measures control and location estimation function.Service wireless network controller 52 transmits a signal to the angular measurement request that reaches with the measuring command form of original system regulation to serving BS 52, is the measuring command form with the form of network interface message of the present invention, and the signalling angle of arrival is measured request under assistant base station.The form of network interface message is described in detail in the above-described embodiments, does not repeat them here.Service wireless network controller 52 sends the location estimation result to core net 51.
Serving BS 53 and service wireless network controller 52 wireless connections, the signal angle of arrival that receives service wireless network controller 52 is measured request, finishes the measurement of the signal angle of arrival, and sends measurement result to service wireless network controller 52.
(m represents natural number to assistant base station 541~54m, that is assistant base station can be one, also can be a plurality of) and service wireless network controller 52 wireless connections, receiving service wireless network controller 52 is that the signal angle of arrival that the measuring command form sends is measured request with the form of network interface message, finishes the signal angle of arrival and measures the back and send measurement results to service wireless network controller 52.The form of network interface message repeats no more as mentioned above.Service wireless network controller 52 carries out location estimation in view of the above after receiving the signal angle of arrival measurement result that serving BS 53 and assistant base station 541~54m report, and the location estimation result of target mobile phones is reported to core net 51.
Mobile phone 55 is according to the function of service wireless network controller 52 configuration transmit uplink signals, to serving BS 53 emission wireless signals.
The present invention has disclosed a kind of wireless location system of the multiple base stations united angle of arrival in addition, sees also Fig. 7.
Wireless location system comprise core net 51, service wireless network controller 52, serving BS 53, with the assistant base station 541~54m of service wireless network controller 52 direct wireless connections
1(m
1Be natural number, that is these assistant base stations can be one also can be a plurality of), connect radio network controller 561~56n (n is a natural number, that is these radio network controllers can be also can be a plurality of), be connected each and connect assistant base station 54 (m under radio network controller
1+ 1)~54m
2, 54 (m
2+ 1)~54m etc.
Core net 51 sends Location Request to service wireless network controller 52, finishes the initiation of location, exports behind the location estimation result of the target mobile phones that receives service wireless network controller 52 outputs.
Service wireless network controller 52 is connected with core net 51, finishes the Access Layer flow process and measures control and location estimation function.Service wireless network controller 52 transmits a signal to the angular measurement request that reaches with the measuring command form of original system regulation to serving BS 52, is the measuring command form with the form of network interface message of the present invention, and the signalling angle of arrival is measured request under assistant base station.The form of network interface message is described in detail in the above-described embodiments, does not repeat them here.Service wireless network controller 52 sends the location estimation result of target mobile phones to core net 51.
Serving BS 53 and service wireless network controller 52 wireless connections, the signal angle of arrival that receives service wireless network controller 52 is measured request, finishes the measurement of the signal angle of arrival, and sends measurement result to service wireless network controller 52.
Assistant base station 541~54m
1(m
1Represent natural number, that is assistant base station can be one, also can be a plurality of) and service wireless network controller 52 wireless connections, receiving service wireless network controller 52 is that the signal angle of arrival that the measuring command form sends is measured request with the form of network interface message, finishes the signal angle of arrival and measures the back and send measurement results to service wireless network controller 52.The form of network interface message repeats no more as mentioned above.
Be that with the difference part of Fig. 6 embodiment the connection radio network controller 561~56n in the wireless location system of present embodiment is connected with service wireless network controller 52.On each connection radio network controller, also connect at least one assistant base station separately.The connection radio network controller 561~56n here plays the effect of intermediary's device.Service wireless network controller 52 is that the mode of measuring command form sends these to and connects radio network controller 561~56n with the request of measuring of the signal angle of arrival with the form of network interface message.To connect radio network controller 561 is example, and other processing modes that connect radio network controller are identical.The request of measuring sends corresponding assistant base station 54 (m to same measuring command form to radio network controller 561 with this signal angle of arrival again
1+ 1)~54m
2These assistant base stations 54 (m
1+ 1)~54m
2After measuring, signal angle of arrival measurement result is back to connection radio network controller 561, is sent to service wireless network controller 52 and serving BS 53 and assistant base station 541~54m by it again
1The signal angle of arrival measurement result that provides is the same, all carries out the foundation of position calculation as service wireless network controller 52.
Service wireless network controller 52 carries out location estimation according to these signal angle of arrival measurement results, exports the location estimation result of target mobile phones to core net 51, remakes output after core net 51 obtains, and this is identical with Fig. 6 embodiment, repeats no more.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.