CN103067986A - Tracking method and implementation system thereof - Google Patents
Tracking method and implementation system thereof Download PDFInfo
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- CN103067986A CN103067986A CN2011103180430A CN201110318043A CN103067986A CN 103067986 A CN103067986 A CN 103067986A CN 2011103180430 A CN2011103180430 A CN 2011103180430A CN 201110318043 A CN201110318043 A CN 201110318043A CN 103067986 A CN103067986 A CN 103067986A
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Abstract
The invention discloses a tracking method which is suitable for community switch processes based on community tracking. The tracking method comprises that user equipment (UE) sends a handover request message with a trace activation cell to a target eNB through a source eNB at an X2 interface, the target eNB receives the handover request message and ensures that tracking based on a community is started in the corresponding community, and starts tracking switched into the UE and based on the community. The invention further discloses a tracking implementation system and a tracking method suitable for community switch processes based on international mobile subscriber identity (IMSI) tracking. According to the tracking method and the implementation system thereof, the continuity of tracked information can be maintained when the UE is switched. Further more, carrying more tracked information at the time of switching and transmitting in all kinds of tracking can be realized.
Description
Technical field
The present invention relates to the whole network tracking technique in the cordless communication network, refer to especially tracking and realization system thereof under a kind of Long Term Evolution (LTE, Long Term Evolution) framework.
Background technology
It is the important means of carrying out wireless network test, network monitoring, problem discover and location and network evaluation that the whole network is followed the tracks of; At present, a lot of cordless communication networks such as code division multiple access (CDMA), LTE etc. can use network trace, and different networks may be taked different trackings.Wherein, the network trace under the existing LTE framework mainly comprises two kinds of methods: based on the tracking of IMSI International Mobile Subscriber Identity (IMSI, InternationalMobile Subscriber Identity) with based on the tracking of residential quarter.
Fig. 1 has provided the trace flow based on IMSI, and this trace flow may further comprise the steps:
Step 101: follow the tracks of the backstage and send assigned I MSI tracking activation message to Mobility Management Entity (MME, Mobility Management Entity);
Wherein, tracking activates and comprises in the message that following the tracks of sequence number (Trace id), tracking depths, tracing level etc. follows the tracks of (Trace) configuration informations.
Step 102～104:MME preserves the tracking configuration information of the IMSI that receives, and whether the S1 coupling of judging this IMSI institute relative user equipment (UE) exists, if the S1 coupling of this UE exists, then MME sends and follows the tracks of beginning (Trace Start) message to evolution base station eNB, and execution in step 105 afterwards; If the S1 coupling of this UE does not exist, then after the S1 of this UE coupling is built up, issue immediately the tracking configuration information, execution in step 105 afterwards;
In this step, the described tracking configuration information that issues is followed following principle: issue as early as possible the tracking configuration information; If the current S1 mouth message that issues can be carried the tracking cell, then issue by this message; If the current S1 mouth message that issues cannot be carried the tracking cell, then issue by Trace Start message.
After step 105:eNB received Trace Start message, the IMSI that activates this UE followed the tracks of.
Step 106～108: after tracing task finishes, follow the tracks of the backstage and send assigned I MSI tracking deexcitation message to MME; After MME receives that assigned I MSI follows the tracks of deexcitation message, send deexcitation to eNB and follow the tracks of (Deactive Trace) message; After eNB received Deactive Trace message, the IMSI of this UE of deexcitation followed the tracks of, that is: stop the IMSI of this UE is followed the tracks of.
Here, in the S1 mouth of following the tracks of based on IMSI, can carry the message of following the tracks of cell and mainly comprise following several: initial context is set up request (Initial Context Setup Request) message, handover request (Handover Request) message and is followed the tracks of beginning (Trace Start) message.Described various message sends to the base station by following the tracks of activation (Trace Activation) cell with trace information, and still, the interface length of TraceActivation cell is generally 8bit at present, can't satisfy the more demand of polymorphic type trace information of carrying.
Fig. 2 has provided the trace flow based on the residential quarter, and this trace flow may further comprise the steps:
Step 201～202: follow the tracks of the backstage and activate message to the Cell tracing that eNB sends for specific cell; After eNB receives that Cell tracing activates message, for having UE and new access/incision UE, generate new Trace id;
Step 203～205:eNB assembling cell transmission is followed the tracks of (Cell Traffic Trace) information and sending to MME; MME reports the corresponding relation of Trace id and IMSI to following the tracks of the backstage; ENB reports tracking results to following the tracks of the backstage;
Step 206～207: after tracing task finishes, follow the tracks of the backstage sends Cell tracing deexcitation message from the residential quarter of following the tracks of to eNB; ENB stops the tracking of this residential quarter.
Above described be based on respectively IMSI follow the tracks of, based on the implementation procedure of Cell tracing, in actual applications, UE can be often owing to switch the mobile residential quarter that occurs, so, in carrying out the whole network tracing task process, for guaranteeing continuity and the accuracy of tracing task data, also need further the tracking configuration information of source eNB to be sent to target eNB.Usually, the residential quarter of generation switches to the switching of X2 mouth or the switching of S1 mouth.
At present, the X2 mouth switching flow of following the tracks of based on IMSI is shown in step 301 and step 304 among Fig. 3:
UE carries Trace Activation cell by source eNB in the Handover Request message that the X2 mouth sends to target eNB, the Trace configuration information that source eNB activates is delivered to target eNB; Wherein, described Trace configuration information comprises the parameters such as Trace id, tracking depths and tracing level; Target eNB triggers following the tracks of based on IMSI of corresponding UE after detecting the tracking message that switches in the message.
The S1 mouth switching flow of following the tracks of based on IMSI such as step 302 among Fig. 3 to shown in the step 304:
Step 302:UE requires (HandoverRequired) message via source eNB to the switching that MME sends the S1 mouth;
Step 303:MME carries Trace Activation cell by the Handover Request message of S1 mouth, and trace information is sent to target eNB;
Step 304: target eNB detects the tracking message that switches in the message, triggers following the tracks of based on assigned I MSI of corresponding UE.
Based on the X2 mouth switching flow of Cell tracing shown in step 401 and step 404 among Fig. 4～407:
Step 401:UE sends Handover Request message to target eNB by source eNB at the X2 mouth, be used for target eNB open incision UE based on Cell tracing;
Step 404～405: after target eNB is received Handover Request message, check whether this residential quarter has started the tracking based on the residential quarter, if the residential quarter has started the tracking based on the residential quarter, then target eNB generates Trace id for incision UE;
Further, when tracing task finished, source eNB deexcitation should be cut the tracking based on the residential quarter of UE, shown in step 408.
Based on the S1 mouth switching flow of Cell tracing such as step 402 among Fig. 4 to shown in the step 407:
Step 402:UE sends Handover Required message to MME via source eNB at the S1 mouth;
After step 403:MME receives Handover Required message, the Handover Request message of S1 mouth is sent to target eNB, be used for target eNB open incision UE based on Cell tracing;
Step 404～405: after target eNB is received Handover Request message, check whether this residential quarter has started the tracking based on the residential quarter, if the residential quarter has started the tracking based on the residential quarter, then target eNB generates Trace id for incision UE;
Further, when tracing task finished, source eNB deexcitation should be cut the tracking based on the residential quarter of UE, shown in step 408.
By above-mentioned flow process as can be known, switch the trace information that rear target eNB can obtain from MME UE based on the tracking of IMSI at UE, thereby keep the continuity based on the IMSI trace information.But, based on the tracking of residential quarter, do not carry relevant trace information based on the residential quarter when switching in the residential quarter and arrive target eNB, but after switching, regenerated new Trace id, so, can't keep the continuity of cell-of-origin correlation tracking information based on the tracking of residential quarter.
In wireless network, the unusual tracking of often using, measurement report and user's ticket details are followed the tracks of the tracking that substantially all is based on the residential quarter, if the trace information of source eNB can not be delivered to target eNB, follow-uply will be difficult to related and analyze the ticket information of once conversation and analyze which time conversation exceptional signaling information unusual and the conversation ticket occurs, can not reach the tracking effect of expection.And the switching under the LTE framework is very frequent, if Trace id, Trace id rise time and relevant auxiliary signaling with different districts, the information such as the IMSI that sends such as hand off signaling, MME and Trace id associated data are done operation associated, not only program is complicated, loaded down with trivial details, and the process information amount is also larger.The more important thing is that if carry out the operation associated time absolute synchronization that just requires between residential quarter and base station, if asynchronous, association is easy to make mistakes when pingpang handoff or frequent call drop access occurring.
In addition, the tracking that no matter is based on IMSI also is based on the tracking of residential quarter, and the tracking interface length of the Trace Activation cell of stipulating in the existing protocol is generally 8bit, like this, just can not carry more eurypalynous trace information.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of tracking and realization system thereof, for the tracking based on the residential quarter, can keep the continuity of trace information when UE switches.
Further aim of the present invention is can carry more trace information for all kinds of tracking when switching transmission.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of tracking, be applicable to the residential quarter switching flow based on Cell tracing, the method comprises: UE carries tracking by source eNB in the transmission of X2 mouth and activates the handover request Handover Request message of Trace Activation cell to target eNB; Target eNB is received Handover Request message, and definite respective cell has started the tracking based on the residential quarter, the tracking based on the residential quarter of unlatching incision UE.
The present invention also provides a kind of tracking, is applicable to the residential quarter switching flow based on Cell tracing, and the method comprises: UE sends the switching that carries Trace Activation cell via source eNB at the S1 mouth and requires Handover Required message to MME; After MME receives Handover Required message, the Trace Activation cell that carries in the Handover Required message is assembled in the Trace Activation cell in the HandoverRequest message of S1 mouth, is sent to target eNB; Target eNB is received Handover Request message, and definite respective cell has started the tracking based on the residential quarter, the tracking based on the residential quarter of unlatching incision UE.
In the such scheme, the method also comprises: the length of following the tracks of interface field in the described Trace Activation cell is set to greater than 8bit.
The present invention also provides a kind of tracking to realize system, comprises source eNB, target eNB, MME; Wherein,
Described source eNB is carrying out that the X2 mouth switches or S1 mouth when switching, and Trace Activation cell is carried in the Handover Request message sends to target eNB; Or Trace Activation cell is carried in the Handover Required message sends to MME;
Described target eNB, in the Handover Request message of receiving that source eNB or MME send, and definite respective cell has been when having started tracking based on the residential quarter, the tracking based on the residential quarter of opening incision UE;
Described MME, after receiving Handover Required message, the Trace Activation cell that carries in the Handover Required message is assembled in the TraceActivation cell in the Handover Request message of S1 mouth, is sent to target eNB.
In the such scheme, described source eNB, the length of following the tracks of interface field in the Trace Activation cell is set to greater than 8bit.
The present invention provides again a kind of tracking, is applicable to the residential quarter switching flow based on the IMSI tracking, and the method comprises: UE sends the Handover Request message that carries Trace Activation cell by source eNB at the X2 mouth to target eNB; Target eNB triggers following the tracks of based on IMSI of corresponding UE after detecting the tracking message that switches in the message; Wherein, the length of tracking interface field is set to greater than 8bit in the described Trace Activation cell.
The present invention provides again a kind of tracking, is applicable to the residential quarter switching flow based on the IMSI tracking, and the method comprises: UE sends the Handover Required message of S1 mouth to MME via source eNB; MME carries Trace Activation cell by the Handover Request message of S1 mouth and is sent to target eNB; Target eNB detects the tracking message that switches in the message, triggers following the tracks of based on assigned I MSI of corresponding UE; Wherein, the length of tracking interface field is set to greater than 8bit in the described Trace Activation cell.
Tracking provided by the present invention and realization system thereof, for the tracking based on the residential quarter, when S1 mouth or the switching of X2 mouth, trace information is positioned in the Trace Activation cell, and the Trace Activation cell that will carry trace information is carried in the Handover Required message that Handover Request message that source eNB sends to target eNB or source eNB send to MME, so that target eNB all can obtain the trace information among the eNB of source, and then keep afterwards the continuity of trace information in switching.And, unusually follow the tracks of, when measurement report and user's ticket details are followed the tracks of, be easy to just to distinguish and analyze the ticket information of once conversation and analyze which time conversation exceptional signaling information unusual and the conversation ticket occurs, thereby can improve systematic function, promote network problem and find efficient with solution and the optimization analysis of location, raising customer complaint.
Among the present invention, switch rear UE for the incision residential quarter in the residential quarter, target eNB does not need to regenerate Trace id, do not need to send CELL TRAFFIC TRACE message to MME, do not need MME to the incidence relation of following the tracks of backstage transmission Trace id and IMSI yet, like this, be easy to distinguish the relevant information in the communication process one time, reduce the signaling consumption of following the tracks of.
And, among the present invention the length of following the tracks of interface (Interface To Trace) field in the Trace Activation cell is extended to more seniority top digit by 8bit, so, no matter also be based on the tracking of residential quarter based on the tracking of IMSI, all can carry more trace information, realize the optimization that the whole network is followed the tracks of.
Description of drawings
Fig. 1 is the realization flow schematic diagram of following the tracks of based on IMSI in the prior art;
Fig. 2 is based on the realization flow schematic diagram of Cell tracing in the prior art;
Fig. 3 is the switching flow schematic diagram of following the tracks of based on IMSI in the prior art;
Fig. 4 is based on the switching flow schematic diagram of Cell tracing in the prior art;
Fig. 5 is the realization flow schematic diagram that the present invention is based on Cell tracing;
Fig. 6 is the switching realization flow schematic diagram that the present invention is based on Cell tracing.
Embodiment
Basic thought of the present invention is: for the tracking based on the residential quarter, when switching in the residential quarter, trace information is positioned in the Trace Activation cell, and the Trace Activation cell that will carry trace information is carried in the handover request message, so that target eNB all can obtain the trace information among the eNB of source.
Concrete, when the residential quarter switches to the S1 switching, the Trace Activation cell that carries trace information is carried on source eNB in the Handover Required message of MME transmission; When the residential quarter switches to the X2 switching, the Trace Activation cell that carries trace information is carried on the Handover Request message that source eNB sends to target eNB.
Further, no matter for the tracking that also is based on the residential quarter based on the tracking of IMSI, in order to make the TraceActivation cell can carry more trace information, the length of following the tracks of interface field in the Trace Activation cell can be extended to more seniority top digit by 8bit, such as 32bit.
The below specifically describes the implementation procedure that the present invention follows the tracks of optimization method with the unusual tracking in residential quarter and two embodiment of residential quarter detailed tracking respectively.
Embodiment one: follow the tracks of unusually the residential quarter
In the present embodiment, what finish is that follow the tracks of unusually the residential quarter, and the implementation procedure of present embodiment tracking may further comprise the steps as shown in Figure 5:
Step 501: follow the tracks of the backstage and send Cell tracing activation message to eNB;
Concrete, follow the tracks of the backstage and can manage one or more eNB; Here, send the residential quarter by the Configuration Manager of following the tracks of the backstage to one or more eNB of its management and unusually follow the tracks of activation message, comprise tracking depths, tracing level, data in the described message and report the relevant informations such as IP address, keeping track of content; Wherein, keeping track of content can use Interfaces To Trace field, can indicate more keeping track of content.
Step 502: after each eNB receives Cell tracing activation message, for having had UE and new the access but the unique Trace id of non-incision UE generation in the residential quarter;
Wherein, the Trace id that generates is constant.
Step 503:eNB assembles Cell Traffic Trace message, and this Cell Traffic Trace message is sent to MME;
Wherein, carry the Trace id that step 502 generates in the described Cell Traffic Trace message.
Step 504:MME reports being related to of Trace id and IMSI to follow the tracks of backstage/webmaster;
Step 505:eNB reports tracking results to following the tracks of backstage/webmaster;
Concrete, eNB Real-time Collection trace information carries out buffer memory, when the UE call drop or switch after, report tracking results to arrive by Flow Control and follow the tracks of backstage/webmaster.
Step 506: when eNB receives the Cell tracing deexcitation message of sending on the tracking backstage, stop Cell tracing.
Switch or the S1 mouth switches for the X2 mouth, referring to shown in Figure 6, the switching flow based on the tracking of residential quarter in the present embodiment is as follows:
In the present embodiment, based on the X2 mouth switching flow of Cell tracing shown in step 601,604,605 among Fig. 6:
Step 601:UE by source eNB the X2 mouth send carry Trace Activation cell Handover Request message to target eNB, be used for target eNB open incision UE based on Cell tracing;
Concrete, this UE is followed the tracks of configuration information unusually in the residential quarter of source eNB side activating be carried in the TraceActivation cell, Trace Activation cell is carried in the Handover Request message sends to target eNB again; Wherein, the residential quarter is unusually followed the tracks of configuration information and is comprised the parameters such as Trace id, tracking depths, tracing level.
Here, table 1 and table 2 have provided respectively different that Trace Activation cell defines among prior art and the present invention in Handover Request message, and table 1 is prior art, and table 2 is the present invention.
| The cell title | Optional/essential | Remarks |
| …… | ||
| Trace Activation | Optional | |
| …… |
Table 1
Table 2
Further, in order to transmit more multi-track information, also can namely greater than 8bit, can be 32bit etc. with the extended length of the tracking interface field in the Trace Activation cell to more than the 8bit, as shown in table 4; As a reference, table 3 has provided prior art and has followed the tracks of the definition of interface field.
Table 3
Table 4
Here, the expansion scheme of following the tracks of interface field length in the Trace Activation cell is equally applicable to residential quarter switching flow based on the tracking of IMSI.
Step 604～605: after target eNB is received Handover Request message, check whether this residential quarter has started the tracking based on the residential quarter, if this residential quarter has started the tracking based on the residential quarter, then target eNB is opened the tracking based on the residential quarter of incision UE according to the relevant information in the Trace Activation cell.
Further, when tracing task finished, source eNB deexcitation should be cut the tracking based on the residential quarter of UE, shown in step 606.
Based on the S1 mouth switching flow of Cell tracing such as step 602 among Fig. 6 to shown in the step 605:
Step 602:UE sends at the S1 mouth via source eNB and carries the Handover Required message of Trace Activation cell to MME;
Concrete, this UE is followed the tracks of configuration information unusually in the residential quarter of source eNB side activating be carried in the TraceActivation cell, Trace Activation cell is carried in the Handover Required message sends to MME again; Wherein, the residential quarter is unusually followed the tracks of configuration information and is comprised the parameters such as Trace id, tracking depths, tracing level.
Here, the definition of Trace Activation cell in Handover Required message is as shown in table 2; In order to transmit more multi-track information, also can namely greater than 8bit, can be 32bit etc. with the extended length of the tracking interface field in the Trace Activation cell to more than the 8bit, as shown in table 4.
After step 603:MME receives Handover Required message, the Trace Activation cell that carries in the Handover Required message is assembled in the Trace Activation cell in the Handover Request message of S1 mouth, be sent to target eNB, be used for target eNB open incision UE based on Cell tracing.
Step 604～605: after target eNB is received Handover Request message, check whether this residential quarter has started the tracking based on the residential quarter, if this residential quarter has started the tracking based on the residential quarter, then target eNB is opened the tracking based on the residential quarter of incision UE according to the relevant information in the Trace Activation cell.
Further, when tracing task finished, source eNB deexcitation should be cut the tracking based on the residential quarter of UE, shown in step 606.
Embodiment two: the residential quarter detailed tracking
In the present embodiment, what finish is the residential quarter detailed tracking, the implementation procedure of present embodiment tracking as shown in Figure 5, substantially similar with the unusual implementation procedure of following the tracks of in residential quarter, concrete as above-mentioned step 501 detailed description to 506, difference is: in the step 501, the Configuration Manager of following the tracks of the backstage sends the residential quarter detailed tracking to one or more eNB of its management and activates message, comprises tracking depths, tracing level, data in the described message and reports the relevant informations such as IP address, keeping track of content; Wherein, keeping track of content can use InterfacesTo Trace field, can indicate more keeping track of content.
Switch or the S1 mouth switches for the X2 mouth, process with embodiment one basic identically, just unusually to follow the tracks of configuration information be residential quarter detailed tracking configuration information wherein residential quarter, specifically describes referring to shown in Figure 6, such as above-mentioned step 601,604 and 605; The perhaps detailed description of step 602 to 605.
For realizing the inventive method, function to source eNB, target eNB and MME improves to some extent, when carrying out the switching of X2 mouth or the switching of S1 mouth, source eNB needs incision UE is carried in the Trace Activation cell at the Cell tracing configuration information of source eNB side activating, Trace Activation cell is carried in the Handover Request message sends to target eNB again; Or Trace Activation cell is carried in the Handover Required message sends to MME; Wherein, the Cell tracing configuration information comprises the parameters such as Trace id, tracking depths, tracing level.
Accordingly, target eNB is received Handover Request message, and definite respective cell has been when having started tracking based on the residential quarter, the tracking based on the residential quarter that can directly open incision UE;
After MME receives Handover Required message, the Trace Activation cell that carries in the Handover Required message is assembled in the Trace Activation cell in the Handover Request message of S1 mouth, is sent to target eNB; Target eNB is received Handover Request message, and definite respective cell has been when having started tracking based on the residential quarter, the tracking based on the residential quarter that can directly open incision UE.
Further, source eNB can be with the extended length of the tracking interface field in the Trace Activation cell to more than the 8bit, namely greater than 8bit, such as 32bit.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
Claims (8)
1. a tracking is applicable to the residential quarter switching flow based on Cell tracing, it is characterized in that the method comprises:
UE carries tracking by source eNB in the transmission of X2 mouth and activates the handover request Handover Request message of Trace Activation cell to target eNB; Target eNB is received Handover Request message, and definite respective cell has started the tracking based on the residential quarter, the tracking based on the residential quarter of unlatching incision UE.
2. method according to claim 1 is characterized in that, the method also comprises: the length of following the tracks of interface field in the described TraceActivation cell is set to greater than 8bit.
3. a tracking is applicable to the residential quarter switching flow based on Cell tracing, it is characterized in that the method comprises:
UE sends the switching that carries Trace Activation cell via source eNB at the S1 mouth and requires Handover Required message to MME;
After MME receives Handover Required message, the Trace Activation cell that carries in the Handover Required message is assembled in the Trace Activation cell in the Handover Request message of S1 mouth, is sent to target eNB;
Target eNB is received Handover Request message, and definite respective cell has started the tracking based on the residential quarter, the tracking based on the residential quarter of unlatching incision UE.
4. method according to claim 3 is characterized in that, it is characterized in that, the method also comprises: the length of following the tracks of interface field in the described Trace Activation cell is set to greater than 8bit.
5. follow the tracks of the realization system for one kind, it is characterized in that this system comprises source eNB, target eNB, MME; Wherein,
Described source eNB is carrying out that the X2 mouth switches or S1 mouth when switching, and Trace Activation cell is carried in the Handover Request message sends to target eNB; Or Trace Activation cell is carried in the Handover Required message sends to MME;
Described target eNB, in the Handover Request message of receiving that source eNB or MME send, and definite respective cell has been when having started tracking based on the residential quarter, the tracking based on the residential quarter of opening incision UE;
Described MME, after receiving Handover Required message, the Trace Activation cell that carries in the Handover Required message is assembled in the TraceActivation cell in the Handover Request message of S1 mouth, is sent to target eNB.
6. system according to claim 1 is characterized in that, described source eNB, and the length of following the tracks of interface field in the Trace Activation cell is set to greater than 8bit.
7. a tracking is applicable to the residential quarter switching flow based on the IMSI tracking, it is characterized in that the method comprises:
UE sends the Handover Request message that carries Trace Activation cell by source eNB at the X2 mouth to target eNB; Target eNB triggers following the tracks of based on IMSI of corresponding UE after detecting the tracking message that switches in the message; Wherein, the length of tracking interface field is set to greater than 8bit in the described Trace Activation cell.
8. a tracking is applicable to the residential quarter switching flow based on the IMSI tracking, it is characterized in that the method comprises:
UE sends the Handover Required message of S1 mouth to MME via source eNB; MME carries Trace Activation cell by the Handover Request message of S1 mouth and is sent to target eNB; Target eNB detects the tracking message that switches in the message, triggers following the tracks of based on assigned I MSI of corresponding UE; Wherein, the length of tracking interface field is set to greater than 8bit in the described Trace Activation cell.
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Application publication date: 20130424 |