CN1829377A - Positioning entity switching method when continuous positioning - Google Patents
Positioning entity switching method when continuous positioning Download PDFInfo
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- CN1829377A CN1829377A CNA2005100512547A CN200510051254A CN1829377A CN 1829377 A CN1829377 A CN 1829377A CN A2005100512547 A CNA2005100512547 A CN A2005100512547A CN 200510051254 A CN200510051254 A CN 200510051254A CN 1829377 A CN1829377 A CN 1829377A
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Abstract
The present invention discloses positioning solid switching method in continue positioning. It contains Positioning solid and traveling platform traveling platform continuously interactivating signalling, receiving traveling platform reported measuring or calculating information, and judging at this point whether needing to proceed positioning solid switching, if it needs switching then accessing server to relevant positioning solid and transmitting positioning solid switching request, said positioning solid accessed server notifying mobile positioning centre to control positioning solid switching, if it does not need switching then said positioning solid calculating traveling platform final position or auxiliary data collecting and downloading to complete once positioning. The present invention method also can use positioning solid judging whether providing service for traveling platform, then positioning solid accessing server judging whether switching. Said invented method can ensure traveling platform in GPS satellite receiving equipment coverage area of positioning solid without resolving signalling, raising continue positional precision, real time and success ratio.
Description
Technical field
The present invention relates to mobile communication network, particularly related to a kind of method that in continuous position fixing process, realizes the position determining entity switching.
Background technology
Location-based business (Location Based Services, be called for short LBS), claim shift position business or positioning service again, be meant that the mobile network obtains the geographical location information (latitude and longitude coordinates) of portable terminal by specific location technology, offer mobile subscriber, communication system or third party, and by the support of certain electronic map information, for the mobile subscriber provides calling or the non-calling class service relevant with its position.
In the locate mode of mobile radio communication, comprise location based on the sub-district, based on traditional GPS (GlobalPositioning System, be GPS (Global Position System)) location of system, based on several modes such as the location of advanced forward link triangle (AFLT, Advanced Forward-Link Trilateration) and AGPS location.Wherein AGPS location is a kind of locate mode that GPS location and mobile communcations system are combined, because of its locating speed fast, positioning accuracy height and being widely used.
Fig. 1 has described the navigation system entity framework schematic diagram based on the mobile communication network system user of AGPS technology.This navigation system mainly comprises travelling carriage, mobile positioning center, position determining entity access server, position determining entity, gps signal receiver, gps satellite etc.Wherein:
Travelling carriage is the ustomer premises access equipment of positioning service, and major function provides the relevant metrical information in portable terminal location, finishes Signalling exchange with position determining entity by mobile radio communication, and the application of finishing the part positioning service simultaneously realizes.Travelling carriage also can calculate from real position entities loading auxiliary data and completing place, and this is determined by the travelling carriage chip.
Mobile positioning center is the kernel entity that positioning service realizes, major function is the control position fixing process, with each entity interaction, and stores and provide user position information etc.
The position determining entity access server mainly is the connection that the management travelling carriage is initiated to position determining entity, receives the Location Request from mobile positioning center, the mutual signaling between while transparent transmission travelling carriage and the position determining entity etc.
The function of position determining entity mainly is that the information that travelling carriage is delivered to network side is handled, base station geographic position information and gps satellite data according to its management, calculate the position of portable terminal or offer the auxiliary data that moving table measuring needs, comprise the base station geographic position information data that is used to search for the auxiliary data of gps satellite and is used for calculating location.
The major function of gps signal receiver is to receive the gps satellite signal data, and sends it to position determining entity.
The function of gps satellite is to send the satellite-signal data constantly.
Existing localization method can be with reference to CHINAUNICOM's industry standard " specification requirement of 800MHz CDMA digital mobile cellular telecommunication net V2 positioning service user plane relevant device ", " CDMA 1X digital mobile cellular telecommunication net travelling carriage standard ", international standard " ANSI TIA/EIA-IS-801 PostionDeternimation Service Standard for Dual Mode Sperate Spectrum Systems ".
Simply introduce existing once Mobile Originated positioning flow below in conjunction with Fig. 1: travelling carriage is initiated Location Request to mobile positioning center, mobile positioning center receives that the request back sends a geographical position request to the position determining entity access server, the position determining entity access server is given a request of mobile positioning center acknowledge message after distributing corresponding resource, mobile positioning center is received the addressing information that sends this position determining entity access server after the acknowledge message to travelling carriage, travelling carriage initiates to connect to the position determining entity access server according to this address, then, initiate to pass through the IS801 Signalling exchange of position determining entity access server transparent transmission between travelling carriage and position determining entity; The gps satellite search auxiliary data that the travelling carriage utilization is downloaded from position determining entity is finished the measurement of pilot tone or pseudorange, finally passes through the calculating of travelling carriage or position determining entity completing place.Wherein gps satellite search auxiliary data is to download according to the initial position of travelling carriage.
The travelling carriage initial position is meant a rough estimate of travelling carriage current location, and the pilot phase of the same peripheral base station that can record by travelling carriage calculates, and this status requirement inaccuracy is so the network parameter of also available current wireless sub-district identifies.Another kind of situation is, produce a position result (calculating or position determining entity calculating) in travelling carriage location last time by travelling carriage, if when estimating to think that according to the travelling carriage clock this position can also be as the initial position of travelling carriage, this position result will be as the initial position of location next time.
In CDMA (Code Division Multiple Access, i.e. code division multiple access) wireless network, location services system can exist a plurality of mobile positioning centers and a plurality of position determining entity in network.In general, position determining entity is preserved the base station data in certain zone, and the gps satellite of position determining entity with reference to the receiving equipment coverage generally about 600 kilometers.In continuous positioning flow, travelling carriage needs constantly to download auxiliary positioning data from the position determining entity side, carry out the measurement and the calculating of position.When initiation is located continuously to the following-up type of certain travelling carriage, can at first position the selection of entity.After having selected to position mutual position determining entity, if in continuous position fixing process, no longer position the switching of entity, in the time of will causing travelling carriage to roam to another one position determining entity regional like this in moving process, originally the position determining entity of Xuan Zeing no longer includes the base station data of this travelling carriage region or the gps satellite of position determining entity is no longer served the travelling carriage region with reference to receiving equipment.At this moment travelling carriage will can not get necessary assist location information, cause positioning accuracy to reduce, even the location failure.So in locating continuously, must consider travelling carriage and the switching problem between each position determining entity.
Fig. 2 is the schematic diagram of the continuous positioning flow of following-up type of being initiated by network side in the existing network.May further comprise the steps:
4.1 the location services clients machine requires the continuous location that travelling carriage is done following-up type to the Location Request of mobile positioning center initiation to certain travelling carriage;
4.2 mobile positioning center sends the message trigger Location Request to travelling carriage;
4.3 Mobile Origination starts the position fixing process request;
4.4 mobile positioning center distributes the task identification of this time location, the request of restoring to normal position client positions is answered;
4.5 mobile positioning center is selected a corresponding positioning entity, to the access server transmission geographical position request of this position determining entity;
4.6 the entity access server returns mobile positioning center geographical position answer message, indication can begin the location;
4.7 mobile positioning center returns travelling carriage and starts the Location Request response, the IP address and the port numbers of indication entity access server;
4.8 travelling carriage and position determining entity download by position determining entity access server transparent transmission that to carry out position data mutual, download auxiliary positioning data etc.;
4.9 position determining entity sends the geographical position result to the position determining entity access server after finishing final position calculating;
4.10 the position determining entity access server returns the geographical position response to mobile positioning center;
4.11 mobile positioning center sends to the location client machine with the position result of travelling carriage;
Step 4.8 repeats repeatedly to 4.11.
4.12, after a period of time, obtain current wireless subzone network parameter in the signaling that the position determining entity access server reports according to the travelling carriage of intercepting and capturing, judge that travelling carriage roams out the service range of this position determining entity;
4.13 the position determining entity access server includes the request switching mark in giving the response of mobile positioning center geographical position;
4.14 mobile positioning center sends cancellation geographical position request to position determining entity, implements position determining entity and switches.
As can be seen, in the switching flow of existing network, be to decompose travelling carriage by the position determining entity access server to report the position determining entity signaling, obtain current wireless subzone network parameter, differentiate according to this network parameter and whether will switch.Switch if desired, then position the switching of entity by geographical position response message notice mobile positioning center.
Several problems below this flow process in the existing network exists:
1) from the transmission of messages layering, the mutual signaling between travelling carriage and the position determining entity should should not resolved by position determining entity access server transparent transmission.
2) in the various call flows between travelling carriage and position determining entity, be not every kind of call flow travelling carriage network parameter that all can report current wireless area, the flow process travelling carriage that has reports its geographical location information or pilot phase.The position determining entity access server can not the real-time informing mobile positioning center positions the switching of entity like this.
3) judge that now the standard of switching is the network parameter according to wireless area.And position determining entity offers the gps satellite search auxiliary data of travelling carriage, receives by the gps satellite receiver, and receiver has certain coverage.So, also should notify mobile positioning center to switch when the position of travelling carriage surpasses this scope.This does not consider in the switching flow of existing network.
Summary of the invention
Technical problem to be solved by this invention is the changing method of position determining entity when realizing continuously the location in a kind of mobile communication navigation system of proposition, and the position determining entity access server does not need to resolve the mutual signaling between travelling carriage and the position determining entity.
In order to solve the problems of the technologies described above, the invention provides the changing method of a kind of continuous when location position determining entity, may further comprise the steps:
(a) in continuous position fixing process, position determining entity and travelling carriage constantly carry out Signalling exchange, measurement that receiving mobile reports or computing information;
(b) measurement or the computing information that report according to this travelling carriage of this position determining entity judges that whether needing to position entity this moment switches, and switches if desired, and execution in step (c) is switched execution in step (e) if do not need;
(c) this position determining entity sends the position determining entity handoff request to corresponding position determining entity access server, and this position determining entity access server notice mobile positioning center positions entity and switches;
(d) after this mobile positioning center was received the notice of switching, the switching of position determining entity was implemented in control, finished;
(e) this position determining entity carries out the calculating of travelling carriage final position or the collection and the download of auxiliary data, finishes one-time positioning, finishes.
Further, above-mentioned changing method also can have following characteristics: this travelling carriage reports in the described step (a) measurement or computing information comprise the wireless area parameter, the pilot tone of this travelling carriage and base station or with the pseudorange of satellite, and a kind of or combination in any in the initial position message of this travelling carriage.
Further, above-mentioned changing method also can have following characteristics: in the described step (b), if contain the wireless area parameter in the message that this travelling carriage reports, this position determining entity is to judge whether this wireless area parameter that reports is its wireless area of serving, if, do not need to position the switching of entity, otherwise need position the switching of entity.
Further, above-mentioned changing method also can have following characteristics: in the described step (b), if contain in the message that reports of this travelling carriage this travelling carriage and base station pilot tone or with the pseudorange of satellite, this position determining entity goes out the initial position of travelling carriage earlier with these information calculations, judge that then this initial position is whether in the position range that its gps satellite receiver is covered, if do not need to position the switching of entity, otherwise, need position the switching of entity.
Further, above-mentioned changing method also can have following characteristics: in the described step (b), if contain the initial position message of travelling carriage in the message that this travelling carriage reports, this position determining entity judges that this position is whether in the position range that its gps satellite receiver is covered, if, do not need to position the switching of entity, otherwise, need position the switching of entity.
Further, above-mentioned changing method also can have following characteristics: this position determining entity access server is by the geographical position response message in the described step (c), and the notice mobile positioning center will position entity and switch.
Further, above-mentioned changing method also can have following characteristics: preserve the parameter information table of its wireless area of serving and the position range table that its gps satellite receiver is covered in the described position determining entity.
In order to solve the problems of the technologies described above, the changing method of position determining entity when the present invention also provides a kind of continuous location may further comprise the steps:
(A) in continuous position fixing process, position determining entity and travelling carriage constantly carry out Signalling exchange, measurement that receiving mobile reports or computing information;
(B) measurement or the computing information that report according to this travelling carriage of this position determining entity judges that this moment, can this position determining entity provide service to this travelling carriage, if can, execution in step (C), otherwise, the corresponding real position of notice entity access server, execution in step (D);
(C) this position determining entity carries out the calculating of this travelling carriage final position or the collection and the download of auxiliary data, the corresponding real position of the back notice of finishing dealing with entity access server;
(D) whether this position determining entity access server judgement this travelling carriage this moment has surpassed the service range of this position determining entity, if, need to switch, carry out next step, otherwise, do not need to switch, finish one-time positioning, end;
(E) position determining entity access server notice mobile positioning center positions the entity switching, and after mobile positioning center was received this notice, the switching of position determining entity was implemented in control, finished.
Further, above-mentioned changing method also can have following characteristics: this travelling carriage reports in the described step (A) measurement or computing information comprise the wireless area parameter, the pilot tone of travelling carriage and base station or with the pseudorange of satellite, and a kind of or combination in any in the initial position message of travelling carriage.
Further, above-mentioned changing method also can have following characteristics: can this position determining entity provide service to this travelling carriage according to following rule judgment this moment in the described step (B):
If contain the wireless area parameter in the message that reports of this travelling carriage, this position determining entity is to judge whether this wireless area parameter that reports is its wireless area of serving, if, then can be for this travelling carriage provides service, otherwise, service can not be provided;
If contain in the message that reports of this travelling carriage this travelling carriage and base station pilot tone or with the pseudorange of satellite, this position determining entity goes out the initial position of this travelling carriage earlier with these information calculations, judge that then this initial position is whether in the position range that its gps satellite receiver is covered, if, then can provide service for this travelling carriage, otherwise, can not provide service;
If contain the initial position message of travelling carriage in the message that this travelling carriage reports, this position determining entity judges that this position is whether in the position range that its gps satellite receiver is covered, if then can provide service for this travelling carriage, otherwise, can not provide service.
Further, above-mentioned changing method also can have following characteristics: this position determining entity access server is by the geographical position response message in the described step (C), and the notice mobile positioning center will position entity and switch.
Further, above-mentioned changing method also can have following characteristics: when this position determining entity of described step (B) can not provide service to travelling carriage in judgement, send the initial position message of wireless area parameter or travelling carriage to this position determining entity access server, in the described step (D), this position determining entity access server is with wireless area parameter or the travelling carriage initial position message received, compare with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver, whether judgement this travelling carriage this moment surpasses the service range of this position determining entity.
Further, above-mentioned changing method also can have following characteristics: when this position determining entity of described step (B) can not provide service to travelling carriage in judgement, sending to have to this position determining entity access server to provide service mark, perhaps/and the message of wireless area parameter or travelling carriage initial position, after this position determining entity access server is received this sign in the described step (D), directly relatively judge whether this travelling carriage surpasses the service range of this position determining entity in the back according to this sign judgement or with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver.
Further, above-mentioned changing method also can have following characteristics: after this position determining entity of described step (C) is finished processing, send the initial position message of wireless area parameter or travelling carriage to this position determining entity access server, in the described step (D), this position determining entity access server is with wireless area parameter or the travelling carriage initial position message received, compare with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver, whether judgement this travelling carriage this moment surpasses the service range of this position determining entity.
Further, above-mentioned changing method also can have following characteristics: after this position determining entity is finished dealing with in the described step (C), send the message that has the sign that service can be provided to this reality position entity access server, after this position determining entity access server is received this sign in the described step (D), judge that directly this goes out the service range that this travelling carriage does not have to surpass this position determining entity.
Further, above-mentioned changing method also can have following characteristics: this position determining entity obtains from the travelling carriage reporting information to the wireless area parameter that this position determining entity access server sends, and the travelling carriage initial position of transmission is the initial position that reports of travelling carriage or calculates by the pilot tone that travelling carriage reports.
As from the foregoing, use the inventive method, the position determining entity access server need not to resolve the mutual signaling between travelling carriage and the position determining entity; Further, also can introduce the judgement that whether the travelling carriage initial position is surpassed the coverage of position determining entity receiver; And when travelling carriage reports its initial position message or pilot phase, also can judge and the real-time informing mobile positioning center positions the switching of entity, thereby can guarantee that position determining entity provides the base station supplementary of portable terminal current location, guarantee the current position of portable terminal in the coverage of gps satellite with reference to receiving equipment of position determining entity, make continuous locating accuracy and success rate all strengthen greatly.
Description of drawings
Fig. 1 is the entity framework schematic diagram of AGPS navigation system.
Fig. 2 is the switching flow schematic diagram in the existing network.
Fig. 3 is the schematic flow sheet that first embodiment of the invention position determining entity access server is determined switching.
Fig. 4 is the flow chart of an application example of first embodiment of the invention.
Fig. 5 is the schematic flow sheet that the second embodiment of the invention position determining entity is determined switching.
Fig. 6 is the flow chart of an application example of second embodiment of the invention.
Embodiment
The continuous positioning flow of following-up type of initiating with network side illustrates changing method of the present invention below, and the difference according to the entity of determining to switch is divided into two embodiment explanations.
First embodiment
Fig. 3 has provided present embodiment by the definite schematic flow sheet that switches of position determining entity access server, may further comprise the steps:
S21, in continuous position fixing process, position determining entity and travelling carriage constantly carry out Signalling exchange, measurement that receiving mobile reports or computing information, these information comprise the network parameter of wireless area, the pilot tone of travelling carriage and base station or with the pseudorange of satellite, the perhaps initial position message of travelling carriage, also can be the combination of these information, wherein the parameter of wireless area can be network parameters such as system identification number, network identification mark, Base Station Identification, mobile switch identification number or network title;
S22, measurement or computing information that position determining entity reports according to travelling carriage judge this moment, whether this position determining entity can provide service (mainly whether finger can provide required auxiliary data to travelling carriage) to travelling carriage; If can provide this service, execution in step S23; Otherwise, execution in step S24;
Preserve the position range table that the parameter information table of its wireless area of serving and its gps satellite receiver are covered in the position determining entity, judge and can provide service by following concrete grammar after receiving the information that travelling carriage reports to travelling carriage:
1) if contain the wireless area parameter in the message that reports of travelling carriage, position determining entity is judged whether its wireless area of serving of this wireless area, if then position determining entity can provide auxiliary data for the request of travelling carriage, otherwise, auxiliary data can not be provided.This auxiliary data comprises the base station geographic position information data that is used to search for the auxiliary data of gps satellite and is used for calculating location.
2) if contain in the message that reports of travelling carriage travelling carriage and base station pilot tone or with the pseudorange of satellite, position determining entity uses these information calculations to go out the initial position of travelling carriage, judge that then this initial position is whether in the position range that its gps satellite receiver is covered, if, then position determining entity can provide auxiliary data for the travelling carriage of this position, otherwise auxiliary data can not be provided.
3) if contain the initial position message of travelling carriage in the message that travelling carriage reports, position determining entity judges that this initial position is whether in the position range that its gps satellite receiver is covered, if, then position determining entity can provide auxiliary data for the travelling carriage of this position, otherwise auxiliary data can not be provided.
S23, position determining entity calculate the travelling carriage final position, send this final position information to the position determining entity access server, also can have the initial position message of wireless area parameter or travelling carriage again, execution in step S25; Wherein, the wireless area parameter obtains from the travelling carriage reporting information, and the travelling carriage initial position is the initial position that reports of travelling carriage or calculates by the pilot tone that travelling carriage reports;
S24, position determining entity send the initial position message of wireless area parameter or travelling carriage to the position determining entity access server;
S25, the position determining entity access server is with wireless area parameter or the travelling carriage initial position message received, compare with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver, need to judge whether to switch,, then need to switch if surpass the service range of this position determining entity, execution in step S26, if do not surpass the service range of this position determining entity, then do not need to switch execution in step S28;
S26, the position determining entity access server sends the geographical position response message to mobile positioning center, and the notice mobile positioning center will position the switching of entity;
S27, mobile positioning center sends the geographical position request message to the target localization entity access server that should switch to, and sends the addressing information of target localization entity access server to travelling carriage, sends cancellation geographical position request to former location entity, the enforcement position determining entity switches, and finishes;
S28, the position determining entity access server sends geographical position response message (may comprise the travelling carriage final position in this message, also may not comprise) to mobile positioning center, does not switch, and finishes.
Among the step S22 of above-mentioned flow process, can position determining entity have carried out providing travelling carriage the judgement of service, the position determining entity access server has carried out the judgement that a time whether travelling carriage surpasses the position determining entity service range again in step S25, and is as the criterion with the judgement of position determining entity access server.The judgement of position determining entity may not load fully because of configuration data, and perhaps the gps data collection goes wrong and makes mistakes, and should be consistent under the normal condition.Therefore, this flow process also can be transformed to following mode:
Two steps in front are identical with S21, S22, in the time can providing service for travelling carriage, and execution in step S23 '; Otherwise, execution in step S24 '.
S23 ', position determining entity calculates the travelling carriage final position, sends this final position information to the position determining entity access server, and (this sign can be various forms to have the sign that service can be provided, final position information also can be used as this sign), execution in step S25 ';
S24 ', position determining entity sends the initial position message of wireless area parameter or travelling carriage to the position determining entity access server, and has the sign that service can not be provided;
S25 ', after the position determining entity access server was received message, if having the sign that service can be provided in the message, execution in step S26 ' was if having the sign that service can not be provided, execution in step S27 ';
S26 ', the position determining entity access server is judged the switching that need not to position entity, sends the geographical position response message to mobile positioning center, has the travelling carriage final position information, does not switch, and finishes;
S27 ', the position determining entity access server is with wireless area parameter or the travelling carriage initial position message received, compare with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver, judging whether to position entity switches, if desired, execution in step S28 ', if do not need, execution in step S30 ';
S28 ', the position determining entity access server sends the geographical position response message to mobile positioning center, and the notice mobile positioning center will position the switching of entity;
S29 ', mobile positioning center sends the geographical position request message to the target localization entity access server that should switch to, and sends the addressing information of target localization entity access server to travelling carriage, sends cancellation geographical position request to former location entity, the enforcement position determining entity switches, and finishes;
S30 ', the position determining entity access server sends the geographical position response message to mobile positioning center, does not switch, and finishes.
In the above-mentioned flow process, when the position determining entity access server can provide service in the position determining entity judgement, directly judgement need not switched, and when the position determining entity judgement can not provide service, oneself had also carried out once judging according to the stored information of the information that reports and this locality.This flow process can also further be simplified, promptly position determining entity only sends the information that has the sign that service can not be provided to the position determining entity access server in step S24 ', and the position determining entity server no longer carries out the judgement of step S27 ', think that directly need position entity switches, finish execution in step S28 ' and S29 ' back.
In addition, several flow process above-mentioned all is that supposition travelling carriage final position is calculated by position determining entity, when positioning calculating by travelling carriage, description among this step S23 or the S23 ': " position determining entity calculates the travelling carriage final position; send this final position information to the position determining entity access server " should be revised as: " position determining entity is according to travelling carriage required parameter or response parameter; finish gps satellite search auxiliary data collection and download to travelling carriage, by travelling carriage completing place result's calculating.At this moment, travelling carriage is not issued position determining entity with the final position that calculates, and the position determining entity access server sends in the geographical position response message of mobile positioning center and do not have the travelling carriage final position information.
Fig. 4 is the application example of the first embodiment network side by the definite flow process of switching of position determining entity access server, as shown in the figure, may further comprise the steps:
5.1 the location services clients machine requires the continuous location that travelling carriage is done following-up type to the Location Request of mobile positioning center initiation to certain travelling carriage;
5.2 mobile positioning center is to the travelling carriage triggered location request that sends SMS message;
5.3 Mobile Origination starts the position fixing process request;
5.4 mobile positioning center distributes the task identification of this time location, the request of restoring to normal position client positions is answered;
5.5 mobile positioning center is selected a corresponding positioning entity, sends the geographical position request to this position determining entity access server;
5.6 the entity access server returns mobile positioning center geographical position answer message, indication can begin the location;
5.7 mobile positioning center returns travelling carriage and starts the Location Request response, the IP address and the port numbers of indication entity access server;
5.8 travelling carriage and position determining entity download by position determining entity access server transparent transmission that to carry out position data mutual, download auxiliary positioning data;
5.9 position determining entity sends the geographical position result to the position determining entity access server;
5.10 the position determining entity access server returns the geographical position response to mobile positioning center;
5.11 mobile positioning center sends to the location client machine with the position result of travelling carriage;
Step 5.8 repeats repeatedly to 5.11.
5.12 after a period of time, position determining entity is judged and can't will be sent travelling carriage initial position or wireless area parameter to the position determining entity access server for travelling carriage provides service according to measurement or computing information that travelling carriage reports;
5.13, the position determining entity access server is according to the travelling carriage initial position or the wireless area parameter that report, and the wireless area parameter correspondence table of preserving and the coverage of gps satellite receiver, judge whether to position the switching of entity, switch if desired, the position determining entity access server includes the request switching mark in giving the response of mobile positioning center geographical position;
5.14 mobile positioning center sends cancellation geographical position request to position determining entity, implements position determining entity and switches.
Second embodiment
Fig. 5 has provided present embodiment by the definite schematic flow sheet that switches of position determining entity, may further comprise the steps:
S31, in continuous position fixing process, position determining entity and travelling carriage constantly carry out Signalling exchange, measurement that receiving mobile reports or computing information, these information comprise the network parameter of wireless area, the pilot tone of travelling carriage and base station or with the pseudorange of satellite, perhaps initial position message of travelling carriage etc. also can be the combination of these information;
S32, measurement or computing information that position determining entity reports according to travelling carriage judge that whether needing to position entity this moment switches, if do not need, execution in step S33, if desired, execution in step S35;
Preserve the position range table that the parameter information table of its wireless area of serving and its gps satellite receiver are covered in the position determining entity, judge whether and need switch by following concrete grammar after receiving the information that travelling carriage reports:
1) if contain the wireless area parameter in the message that travelling carriage reports, position determining entity judges whether this wireless area is its wireless area of serving, if not, then need to position the switching of entity, otherwise do not need to switch.
2) if contain in the message that reports of travelling carriage travelling carriage and base station pilot tone or with the pseudorange of satellite, then position determining entity uses these information calculations to go out the initial position of travelling carriage, judge that this position is whether in the position range that its gps satellite receiver is covered, if this initial position surpasses this position range, then need to position the switching of entity, otherwise do not need to switch.
3) if contain the initial position message of travelling carriage in the message that travelling carriage reports, judge that this position is whether in the position range that its gps satellite receiver is covered, if this initial position surpasses this position range, then need to position the switching of entity, otherwise do not need to switch.
S33, position determining entity calculate the travelling carriage final position, send this final position information to the position determining entity access server;
S34, the position determining entity access server sends geographical position response message (having the travelling carriage final position) to mobile positioning center, does not switch, and finishes;
S35, position determining entity sends the position determining entity handoff request to the position determining entity access server, and the position determining entity access server is by the geographical position response message, and the notice mobile positioning center will position entity and switch;
S36, mobile positioning center sends the geographical position request message to the target localization entity that should switch to, and the addressing information to travelling carriage transmission target localization entity access server sends cancellation geographical position request to this position determining entity, the enforcement position determining entity switches, and finishes.
When being positioned calculating by travelling carriage, only need step S33 is changed into: position determining entity is finished gps satellite search auxiliary data collection and is downloaded to travelling carriage, by travelling carriage completing place result's calculating according to travelling carriage required parameter or response parameter.Travelling carriage is not issued position determining entity with the final position that calculates, and the position determining entity access server sends in the geographical position response message of mobile positioning center and do not have the travelling carriage final position information.
Fig. 6 is the application example of the second embodiment network side by the definite flow process of switching of position determining entity, as shown in the figure, may further comprise the steps:
6.1 the location services clients machine requires the continuous location that travelling carriage is done following-up type to the Location Request of mobile positioning center initiation to certain travelling carriage;
6.2 mobile positioning center is to the travelling carriage triggered location request that sends SMS message;
6.3 Mobile Origination starts the position fixing process request;
6.4 mobile positioning center distributes the task identification of this time location, the request of restoring to normal position client positions is answered;
6.5 mobile positioning center is selected a corresponding positioning entity, sends the geographical position request to this position determining entity access server;
6.6 the entity access server returns mobile positioning center geographical position answer message, indication can begin the location;
6.7 mobile positioning center returns travelling carriage and starts the Location Request response, the IP address and the port numbers of indication entity access server;
6.8 travelling carriage and position determining entity download by position determining entity access server transparent transmission that to carry out position data mutual, download auxiliary positioning data;
6.9 position determining entity sends the geographical position result to the position determining entity access server;
6.10 the position determining entity access server returns the geographical position response to mobile positioning center;
6.11 mobile positioning center sends to the location client machine with the position result of travelling carriage;
Step 6.8 repeats repeatedly to 6.11.
6.12 after a period of time, measurement or computing information that position determining entity reports according to travelling carriage judge that will position entity this moment switches;
6.13 the position determining entity access server includes the request switching mark in giving the response of mobile positioning center geographical position;
6.14 mobile positioning center sends cancellation geographical position request to position determining entity, implements position determining entity and switches.
Among above-mentioned two embodiment, the position determining entity access server need not to resolve the mutual signaling between travelling carriage and the position determining entity; And introduced the judgement that whether the travelling carriage current location is surpassed the coverage of position determining entity receiver; When travelling carriage reports its initial position message or pilot phase, also can judge and the real-time informing mobile positioning center positions the switching of entity.Thereby overcome the defective of existing network switching flow.
The above only is preferred embodiment of the present invention, and in order to restriction the present invention, within the spirit and principles in the present invention all, any modification of being done is not equal to replacement, improves etc., all should be included within protection scope of the present invention.
Also have the system architecture that does not have mobile positioning center at present, the mobile positioning center in the inventive method should be considered as logical block, the variation that causes on flow process should be considered as equivalents of the present invention.
Claims (16)
1, a kind of continuous when location position determining entity changing method, may further comprise the steps:
(a) in continuous position fixing process, position determining entity and travelling carriage constantly carry out Signalling exchange, measurement that receiving mobile reports or computing information;
(b) measurement or the computing information that report according to this travelling carriage of this position determining entity judges that whether needing to position entity this moment switches, and switches if desired, and execution in step (c) is switched execution in step (e) if do not need;
(c) this position determining entity sends the position determining entity handoff request to corresponding position determining entity access server, and this position determining entity access server notice mobile positioning center positions entity and switches;
(d) after this mobile positioning center was received the notice of switching, the switching of position determining entity was implemented in control, finished;
(e) this position determining entity carries out the calculating of travelling carriage final position or the collection and the download of auxiliary data, finishes one-time positioning, finishes.
2, changing method as claimed in claim 1, it is characterized in that, this travelling carriage reports in the described step (a) measurement or computing information comprise the wireless area parameter, the pilot tone of this travelling carriage and base station or with the pseudorange of satellite, and a kind of or combination in any in the initial position message of this travelling carriage.
3, changing method as claimed in claim 2, it is characterized in that, in the described step (b), if contain the wireless area parameter in the message that this travelling carriage reports, this position determining entity is to judge whether this wireless area parameter that reports is its wireless area of serving, if do not need to position the switching of entity, otherwise need position the switching of entity.
4, changing method as claimed in claim 3, it is characterized in that, in the described step (b), if contain in the message that reports of this travelling carriage this travelling carriage and base station pilot tone or with the pseudorange of satellite, this position determining entity is first to go out the initial position of travelling carriage with these information calculations, judges that then this initial position is whether in the position range that its gps satellite receiver is covered, if, do not need to position the switching of entity, otherwise, need position the switching of entity.
5, as claim 3 or 4 described changing methods, it is characterized in that, in the described step (b), if contain the initial position message of travelling carriage in the message that this travelling carriage reports, this position determining entity judges that this position is whether in the position range that its gps satellite receiver is covered, if do not need to position the switching of entity, otherwise, need position the switching of entity.
6, changing method as claimed in claim 1 is characterized in that, this position determining entity access server is by the geographical position response message in the described step (c), and the notice mobile positioning center will position entity and switch.
7, changing method as claimed in claim 1 is characterized in that, preserves the parameter information table of its wireless area of serving and the position range table that its gps satellite receiver is covered in the described position determining entity.
8, a kind of continuous when location position determining entity changing method, may further comprise the steps:
(A) in continuous position fixing process, position determining entity and travelling carriage constantly carry out Signalling exchange, measurement that receiving mobile reports or computing information;
(B) measurement or the computing information that report according to this travelling carriage of this position determining entity judges that this moment, can this position determining entity provide service to this travelling carriage, if can, execution in step (C), otherwise, the corresponding real position of notice entity access server, execution in step (D);
(C) this position determining entity carries out the calculating of this travelling carriage final position or the collection and the download of auxiliary data, the corresponding real position of the back notice of finishing dealing with entity access server;
(D) whether this position determining entity access server judgement this travelling carriage this moment has surpassed the service range of this position determining entity, if, need to switch, carry out next step, otherwise, do not need to switch, finish one-time positioning, end;
(E) position determining entity access server notice mobile positioning center positions the entity switching, and after mobile positioning center was received this notice, the switching of position determining entity was implemented in control, finished.
9, changing method as claimed in claim 8, it is characterized in that, this travelling carriage reports in the described step (A) measurement or computing information comprise the wireless area parameter, the pilot tone of travelling carriage and base station or with the pseudorange of satellite, and a kind of or combination in any in the initial position message of travelling carriage.
10, changing method as claimed in claim 9 is characterized in that, can this position determining entity provide service to this travelling carriage according to following rule judgment this moment in the described step (B):
If contain the wireless area parameter in the message that reports of this travelling carriage, this position determining entity is to judge whether this wireless area parameter that reports is its wireless area of serving, if, then can be for this travelling carriage provides service, otherwise, service can not be provided;
If contain in the message that reports of this travelling carriage this travelling carriage and base station pilot tone or with the pseudorange of satellite, this position determining entity goes out the initial position of this travelling carriage earlier with these information calculations, judge that then this initial position is whether in the position range that its gps satellite receiver is covered, if, then can provide service for this travelling carriage, otherwise, can not provide service;
If contain the initial position message of travelling carriage in the message that this travelling carriage reports, this position determining entity judges that this position is whether in the position range that its gps satellite receiver is covered, if then can provide service for this travelling carriage, otherwise, can not provide service.
11, changing method as claimed in claim 8 is characterized in that, this position determining entity access server is by the geographical position response message in the described step (C), and the notice mobile positioning center will position entity and switch.
12, changing method as claimed in claim 8, it is characterized in that, when this position determining entity of described step (B) can not provide service to travelling carriage in judgement, send the initial position message of wireless area parameter or travelling carriage to this position determining entity access server, in the described step (D), this position determining entity access server is with wireless area parameter or the travelling carriage initial position message received, compare with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver, whether judgement this travelling carriage this moment surpasses the service range of this position determining entity.
13, changing method as claimed in claim 8, it is characterized in that, when this position determining entity of described step (B) can not provide service to travelling carriage in judgement, sending to have to this position determining entity access server to provide service mark, perhaps/and the message of wireless area parameter or travelling carriage initial position, after this position determining entity access server is received this sign in the described step (D), directly relatively judge whether this travelling carriage surpasses the service range of this position determining entity in the back according to this sign judgement or with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver.
14, as claim 12 or 13 described changing methods, it is characterized in that, after this position determining entity of described step (C) is finished processing, send the initial position message of wireless area parameter or travelling carriage to this position determining entity access server, in the described step (D), this position determining entity access server is with wireless area parameter or the travelling carriage initial position message received, compare with the wireless area parameter correspondence table of its preservation and the coverage of gps satellite receiver, whether judgement this travelling carriage this moment surpasses the service range of this position determining entity.
15, as claim 12 or 13 described changing methods, it is characterized in that, after this position determining entity is finished dealing with in the described step (C), send the message that has the sign that service can be provided to this reality position entity access server, after this position determining entity access server is received this sign in the described step (D), judge that directly this goes out the service range that this travelling carriage does not have to surpass this position determining entity.
16, changing method as claimed in claim 12, it is characterized in that, this position determining entity obtains from the travelling carriage reporting information to the wireless area parameter that this position determining entity access server sends, and the travelling carriage initial position of transmission is the initial position that reports of travelling carriage or calculates by the pilot tone that travelling carriage reports.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100512547A CN100417287C (en) | 2005-03-03 | 2005-03-03 | Positioning entity switching method when continuous positioning |
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| CNB2005100512547A CN100417287C (en) | 2005-03-03 | 2005-03-03 | Positioning entity switching method when continuous positioning |
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| CN1829377A true CN1829377A (en) | 2006-09-06 |
| CN100417287C CN100417287C (en) | 2008-09-03 |
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| CNB2005100512547A Expired - Fee Related CN100417287C (en) | 2005-03-03 | 2005-03-03 | Positioning entity switching method when continuous positioning |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682164A (en) * | 2016-01-13 | 2016-06-15 | 广东欧珀移动通信有限公司 | Positioning method and device of mobile terminal and mobile terminal |
| CN105682031A (en) * | 2016-01-13 | 2016-06-15 | 广东欧珀移动通信有限公司 | A method and device for automatically switching network location services |
| CN109936818A (en) * | 2019-04-29 | 2019-06-25 | 新华三技术有限公司 | A kind of localization method, device and storage medium |
| CN114586414A (en) * | 2020-09-29 | 2022-06-03 | 北京小米移动软件有限公司 | Request sending method, response information sending method and positioning information acquisition method |
| WO2022147664A1 (en) * | 2021-01-05 | 2022-07-14 | 北京小米移动软件有限公司 | Access method, auxiliary information processing method and apparatus, and device and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134921C (en) * | 2001-03-14 | 2004-01-14 | 华为技术有限公司 | Method for Allocating Traffic Channel Frequency in Code Division Multiple Access Mobile Communication System |
| US20030100307A1 (en) * | 2001-11-27 | 2003-05-29 | Intel Corporation | Automatic service handoff method and apparatus |
| CN1275405C (en) * | 2002-06-27 | 2006-09-13 | 中兴通讯股份有限公司 | Method for implementing positioning service in communication system |
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2005
- 2005-03-03 CN CNB2005100512547A patent/CN100417287C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682164A (en) * | 2016-01-13 | 2016-06-15 | 广东欧珀移动通信有限公司 | Positioning method and device of mobile terminal and mobile terminal |
| CN105682031A (en) * | 2016-01-13 | 2016-06-15 | 广东欧珀移动通信有限公司 | A method and device for automatically switching network location services |
| CN109936818A (en) * | 2019-04-29 | 2019-06-25 | 新华三技术有限公司 | A kind of localization method, device and storage medium |
| CN109936818B (en) * | 2019-04-29 | 2021-03-19 | 新华三技术有限公司 | Positioning method, positioning device and storage medium |
| CN114586414A (en) * | 2020-09-29 | 2022-06-03 | 北京小米移动软件有限公司 | Request sending method, response information sending method and positioning information acquisition method |
| CN114586414B (en) * | 2020-09-29 | 2023-10-03 | 北京小米移动软件有限公司 | Request transmitting method, response information transmitting method, positioning information acquiring method |
| WO2022147664A1 (en) * | 2021-01-05 | 2022-07-14 | 北京小米移动软件有限公司 | Access method, auxiliary information processing method and apparatus, and device and storage medium |
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| Publication number | Publication date |
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| CN100417287C (en) | 2008-09-03 |
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