CN100488279C - Statistical method for switching systems - Google Patents
Statistical method for switching systems Download PDFInfo
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- CN100488279C CN100488279C CNB2005100734133A CN200510073413A CN100488279C CN 100488279 C CN100488279 C CN 100488279C CN B2005100734133 A CNB2005100734133 A CN B2005100734133A CN 200510073413 A CN200510073413 A CN 200510073413A CN 100488279 C CN100488279 C CN 100488279C
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Abstract
The method comprises: a) when the serving radio network controller (SRNC) receives a request message of building radio resource control (RRC) connection initiated from the user terminal, and the cause value carried by the request message indicates a reselection of inter-system cell, the switch attempting times between systems is confirmed as one time; b) after a system switch is made for the current calling of user terminal, the SRNC receives a IU releasing instruction from the Serving GPRS Support Node (SGSN); when the cause value carried by the message indicates a normal release and a transferring success, the successfully switching time between systems is conformed as one time.
Description
Technical field
The system that the present invention relates in the wireless domain is switched, and relates in particular to switching times between GPRS to WCDMA grouping domain system and a kind of statistical method of handover success rate.
Background technology
Handoff functionality provides under WCDMA network and the network coexisted situation of GPRS/GSM between system, user terminal (User Equipment, UE) seamless function of enjoying two networks services.The function of switching between using system had both kept the resource of existing network, also the WCDMA initial stage was arranged net the stage, and the network coverage that remedies WCDMA with the GSM/GPRS network provides a solution.
Switch the switching of the WCDMA to GSM that comprises circuit (CS) territory between system, the WCDMA to GPRS in grouping (PS) territory switches, and the GSM to WCDMA in CS territory switches, and the GPRS to WCDMA in PS territory switches four kinds.In order to assess the performance of switching, need be at UTRAN (UMTS TerrestrialRadio Access Network, UMTS Terrestrial radio access network) in, specially at this four classes switched design performance statistics point, assess the handover success rate of every kind of switching, and with the important indicator of these statistics points as the network optimization.
3GPP32.403 about the agreement of performance management (Performance Management) in not definition statistics PS territory switch to the statistical method of WCDMA network number of success from GPRS network.As shown in Figure 1, for user terminal moves to the switching flow figure of WCDMA network from GPRS network, comprise the following steps:
1, the UE judgement moves to the WCDMA network from GPRS network;
2, UE initiates Radio Resource control (RRC) connection request message (RRC CONNECTION REQUEST) to service wireless network controller (SRNC), and the cause value of this request message is " intersystem cell reselection " (Inter-RAT cell re-selection); SRNC judges that according to cause value this UE will carry out the switching from GPRS network to the WCMDA network, and statistics once switches to the number of attempt of WCDMA network from GPRS network;
3, setting up the Iu signaling between SRNC and the Serving GPRS Support Node (SGSN) connects;
4, after UE finishes RRC connection foundation, initiate Routing Area Update request (Route Area Update Request) to SGSN in the WCDMA network, expression need be registered to the WCDMA network;
5, SGSN notice attaching position register or VLR Visitor Location Register or mobile switching centre (HLR/VLR/MSC) carry out Data Update;
6, SGSN returns Routing Area Update to UE and accepts message (Route Area Update Accept);
7, UE sends Routing Area Update to SGSN and finishes message (Route Area Update Complete);
8, UE initiates business request information (Service Request) to SGSN;
9, SGSN initiates RAB (Radio Access Bearer, RAB) assignment request message (RAB Assignment Request) to SRNC;
10, SRNC returns RAB assignment response message (RAB Assignment Response) to SGSN, and indicating services is set up and finished.
According to above-mentioned flow process, in the prior art in the UTRAN statistics from the trigger point that gprs system switches to the number of success of WCDMA system be: RNC sends RAB assignment response message to SGSN, switch between the indication grouping domain system and go into the SRNC success, referring to the step 10 of Fig. 1.
On flow process, the prerequisite that SRNC sends RAB assignment response message is that UE initiates business request information, and promptly UE has up data or signaling to need to transmit, and just has the process that RAB sets up afterwards.If UE does not send business request information to SGSN, just there is not the process of setting up of RAB yet.Therefore, when UE successful switch to the WCDMA network, but do not transmit under the data conditions, because not starting RAB sets up process, SRNC can not send RAB assignment response message to SGSN, to cause leaking the number of times of this successful switch of statistics like this, make that the packet domain handover success rate index from GPRS to WCDMA is on the low side, not statistical uncertainty true.
Summary of the invention
The invention provides a kind of switching statistical method between GPRS to WCDMA grouping domain system, in order to solve in the prior art switching times and the not statistical uncertainty true problem of handover success rate between system.
The inventive method is applied to the switching from GPRS to the WCDMA grouping domain system, and this method comprises:
A, service wireless network controller (SRNC) receive that Radio Resource control (RRC) that user terminal is initiated connects and set up request message, and the cause value that carries of this message is confirmed as and switched number of attempt between primary system when being intersystem cell reselection;
B, carry out after system switches in this calling of user terminal, SRNC receives the Iu release command message that Serving GPRS Support Node (SGSN) sends, and the cause value that this message is carried discharges or when moving successfully, confirms as handover success number of times between primary system for normal;
Handover success number of times in C, the accumulative total certain time length and switching number of attempt.
With the handover success number of times of accumulative total and the ratio that switches number of attempt as handover success rate between system.
Described switching number of attempt and handover success number of times are added up by SRNC.
Two counters are set in RNC, are respectively applied for described switching number of attempt of statistics and handover success number of times.
According to said method of the present invention, among the described step B, after user terminal switches to the WCDMA system,, SGSN discharges request message if receiving the Iu that SRNC initiates, and then send cause value and be the Iu release command message that normally discharges or migration is successful to SRNC.
According to said method of the present invention, after user terminal switches to the WCDMA system, the uplink and downlink transfer of data is not arranged if SRNC detects user terminal in a setting duration, then initiate Iu and discharge request message to SGSN.Described setting duration is by being arranged on the timer control among the SRNC.
According to said method of the present invention, among the described step B, after user terminal switched to the WCDMA system, when user terminal finished this calling, SGSN sent cause value to SRNC and is normal release or the successful Iu release command message of migration.
According to said method of the present invention, among the described step B, after user terminal switched to the WCDMA system, SGSN sent cause value to SRNC and is normal release or the successful Iu release command message of migration when one sets the business request information of not receiving the user terminal initiation in the duration.Described setting duration is by being arranged on the timer control among the SGSN.
Adopt the inventive method can accurately count, be convenient to correctly weigh the different system performance of handoffs of network from switching times and handover success rate between GPRS to WCDMA grouping domain system.
Description of drawings
Fig. 1 switches to one of WCDMA system signaling flow chart for the GRPS system;
Fig. 2 switches to two of WCDMA system signaling flow chart for the GRPS system.
Embodiment
The invention provides a kind of between GPRS to WCDMA grouping domain system switching times (comprise switch number of attempt and handover success number of times) and the statistical method of handover success rate.
The inventive method comprises: service wireless network controller (SRNC) is received that Radio Resource control (RRC) that user terminal is initiated connects and is set up request message, and when the cause value that this message is carried is intersystem cell reselection, confirms as and switch number of attempt between primary system; After system's switching is carried out in this calling of user terminal, SRNC receives the Iu release command message that Serving GPRS Support Node (SGSN) sends, and the cause value that this message is carried discharges or when moving successfully, confirms as handover success number of times between primary system for normal.Add up the handover success number of times in the certain time length and switch number of attempt, use handover success number of times that adds up and the ratio that switches number of attempt as handover success rate between system.
Why can accurately count the handover success number of times to the inventive method below is analyzed as follows:
Referring to Fig. 2, for the GRPS system switches to WCDMA system signaling flow chart.Clearly describe because most of process step is existing hereinbefore, do not repeat at this.Fig. 2 compared to Figure 1 owing to after user terminal switches to the WCDMA system, not necessarily initiate service request, therefore, step 8-10 is an optional step; Be step 8-10 when user terminal is initiated service request, can be performed; And when user terminal is not initiated service request, just can not execution in step 8-10.And no matter whether UE initiates business request information, and after Routing Area Update was finished, (step 3), finally the Iu release command message (Iu Release Command) that can be initiated by SGSN discharged in the Iu signaling connection that UE sets up when inserting the WCDMA system.Therefore, UE PS territory can be determined to connect dispose procedure at Iu from the number of success trigger point that GPRS to WCDMA switches, that is: SRNC receives that the Iu release command message that SGSN sends and the release cause value of carrying when discharging (Normal Release) or moving successfully (Relocation Successful), can confirm as UE PS territory from GPRS to WCDMA handover success for normal.Like this, because the statistics point of handover success is not to serve as the statistics foundation with the RAB assignment response that SRNC sends, the user terminal successful switch causes thinking by mistake the unsuccessful problem of switching owing to not initiating service request in the prior art after the WCDMA system with regard to having overcome; And, in case user terminal this call out handover success, will inevitably set up Iu and connect, and the Iu that sets up is connected and is bound to be discharged by the Iu release command message that SGSN initiates certain the time.Therefore, adopt the inventive method can accurately count the handover success number of times, do not have the problem of leaking statistics or many statistics.
The situation that SGSN initiates the Iu release command message has following several:
Situation one: after user terminal switches to the WCDMA system, discharge request message, then send cause value and be the Iu release command message that normally discharges or migration is successful to SRNC if SGSN receives the Iu that SRNC initiates.
SRNC initiates Iu release request message and comprises: after user terminal switches to the WCDMA system, if SRNC detects user terminal in a setting duration uplink and downlink transfer of data is not arranged, then initiate Iu to SGSN and discharge request message.Setting duration wherein can adopt a timer is set in SRCN, if behind the timer expiry, user terminal is not also initiated the transmission of any data or signaling, SRNC initiatively discharges the Iu signaling connection that this user terminal is set up in the WCDMA system.
Situation two: after user terminal switched to the WCDMA system, when user terminal finished this calling, SGSN sent cause value to SRNC and is normal release or the successful Iu release command message of migration.
Situation three: after user terminal switched to the WCDMA system, SGSN sent cause value to SRNC and is normal release or the successful Iu release command message of migration when one sets the business request information of not receiving the user terminal initiation in the duration.Promptly a timer can be set in SGSN, when receiving, SGSN starts this timer after the Routing Area Update of user terminal transmission is finished message, if SGSN does not also receive the business request information that user terminal sends behind the timer expiry, then SGSN initiatively initiates the Iu release command, and indication SRNC discharges this user terminal, and this calls out the Iu connection of setting up in WCDMA.
In more than describing, the statistical method of handover success number of times between clear and definite system.Add up for switching the cause value that carries when number of attempt can adopt user terminal initiation RRC connection to set up message between system, if RRC connects when setting up the cause value that carries in the message and being intersystem cell reselection, then can confirm to switch between the user terminal requests system.
In the practical application, switching number of attempt and handover success number of times can add up switching number of attempt and handover success number of times respectively by two counters are set among the RNC.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1, switch statistical method between a kind of system, be applied to the switching from GPRS to the WCDMA grouping domain system, this method comprises:
A, service wireless network controller SRNC receive that radio resource control RRC that user terminal is initiated connects and set up request message, and the cause value that carries of this message is confirmed as and switched number of attempt between primary system when being intersystem cell reselection;
B, carry out after system switches in this calling of user terminal, SRNC receives the Iu release command message that Serving GPRS Support Node SGSN sends, and the cause value that this message is carried discharges or when moving successfully, confirms as handover success number of times between primary system for normal;
Handover success number of times in C, the accumulative total certain time length and switching number of attempt.
2, the method for claim 1 is characterized in that, uses handover success number of times that adds up and the ratio that switches number of attempt as handover success rate between system.
3, the method for claim 1 is characterized in that, described switching number of attempt and handover success number of times are added up by SRNC.
4, method as claimed in claim 3 is characterized in that, two counters are set in RNC, is respectively applied for described switching number of attempt of statistics and handover success number of times.
5, the method for claim 1, it is characterized in that, among the described step B, after user terminal switches to the WCDMA system, if SGSN receives the Iu that SRNC initiates and discharges request message, then send cause value and be the Iu release command message that normally discharges or migration is successful to SRNC.
6, method as claimed in claim 5 is characterized in that, after user terminal switches to the WCDMA system, if SRNC detects user terminal in a setting duration uplink and downlink transfer of data is not arranged, and then initiates Iu to SGSN and discharges request message.
7, method as claimed in claim 6 is characterized in that, described setting duration is by being arranged on the timer control among the SRNC.
8, the method for claim 1 is characterized in that, among the described step B, after user terminal switched to the WCDMA system, when user terminal finished this calling, SGSN sent cause value to SRNC and is normal release or the successful Iu release command message of migration.
9, the method for claim 1, it is characterized in that, among the described step B, after user terminal switches to the WCDMA system, SGSN sends cause value to SRNC and is normal release or the successful Iu release command message of migration when one sets the business request information of not receiving the user terminal initiation in the duration.
10, method as claimed in claim 9 is characterized in that, described setting duration is by being arranged on the timer control among the SGSN.
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| CNB2005100734133A CN100488279C (en) | 2005-05-30 | 2005-05-30 | Statistical method for switching systems |
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| CNB2005100734133A CN100488279C (en) | 2005-05-30 | 2005-05-30 | Statistical method for switching systems |
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| CN100488279C true CN100488279C (en) | 2009-05-13 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101262667B (en) * | 2007-03-07 | 2011-05-25 | 中兴通讯股份有限公司 | An inter-system switching method for dual-mode and dual-idle mobile phone |
| CN101321359B (en) * | 2007-06-06 | 2011-05-25 | 中兴通讯股份有限公司 | Performance data transmission method of mobile communication system |
| CN101500322B (en) * | 2008-02-02 | 2012-04-04 | 中兴通讯股份有限公司 | Resource releasing method |
| CN101640879B (en) * | 2008-08-01 | 2012-05-23 | 华为技术有限公司 | Method, device and system for intersystem switching capacity information acquisition and system access |
| CN102244874B (en) * | 2010-05-10 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of inter-system reselection frequency statistics method and device |
| CN102123455A (en) * | 2011-01-21 | 2011-07-13 | 大唐移动通信设备有限公司 | Method and device for acquiring reselection frequency |
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Effective date of registration: 20211222 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |