CN100502281C - Method for improving checking function fault-tolerant performance of counter - Google Patents
Method for improving checking function fault-tolerant performance of counter Download PDFInfo
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- CN100502281C CN100502281C CNB2005100803788A CN200510080378A CN100502281C CN 100502281 C CN100502281 C CN 100502281C CN B2005100803788 A CNB2005100803788 A CN B2005100803788A CN 200510080378 A CN200510080378 A CN 200510080378A CN 100502281 C CN100502281 C CN 100502281C
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Abstract
The invention discloses a method to improve the counter checking function fault tolerance that would judge the counter checking result and take process according to the super frame number in checking data and response data of counter and the disparity range of allowed super frame number. The method includes the following steps: checking the super frame number in counter checking data with that in the response data, if the result does not exceed the set super frame number, the counter checking data is normal, and end the counter checking process, else, the result is abnormal and release the wireless resource control connection. The invention could effectively improve the fault tolerant ability and reduce false releasing of wireless resource connection, and would not influence to the integrality protection function for user data.
Description
Technical field
The present invention relates to wireless network communication technique, relate in particular to a kind of method that improves checking function fault-tolerant performance of counter
Background technology
WCDMA (Wideband Code Division Multiple Access (WCDMA)) is a kind of of 3G (Third Generation) Moblie network, and this network has had very big improvement than GSM (digital cellular mobile communication systems) network aspect the Access Network fail safe.Traditional GSM has only encryption function, does not have the integrity protection function.WCDMA not only has encryption function and also has data integrity protection's function.COUNTER CHECK (counter inspection) function is exactly a kind of mechanism of protecting the user data integrality between RNC (radio network controller) and UE (subscriber equipment).
COUNTER CHECK function has a detailed description in 3GPP agreement 25331, and its flow process as shown in Figure 1.Periodically initiate COUNTER CHECK message by the RNC among the UTRAN in the WCDMA system (Universal Terrestrial Radio Access Network network) and give UE, comprise the HFN (Hyper Frame Number) of the up-downgoing of each RB (radio bearer) in this message.After UE receives COUNTER CHECK message, the HFN that comprises in this message and the HFN of self are compared.According to comparative result, reply COUNTER CHECK RESPONSE (replying) message then to RNC.RNC determines follow-up processing according to the content of response message again.
When the HFN that comprises in the COUNTER CHECK message that UE receives and the HFN of self are consistent, UE does not comprise any HFN information in the COUNTER CHECK RESPONSE that RNC replys, show that COUNTER CHECK result is normal, COUNTER CHECK flow process normal termination this moment then, RNC is consistent with data integrity between UE.
When the HFN of the HFN that comprises in the COUNTER CHECK message that UE receives and self was inconsistent, UE had comprised the information of COUNTC (counter) in the COUNTER CHECK RESPONSE that RNC replys, show COUNTER CHECK results abnormity.In order to guarantee the integrality of user data, then RNC can discharge RRC (radio resource control) connection.
Described COUNTC information is made up of HFN and RLC (Radio Link control) SN (sequence number).When RLC SN reached maximum, HFN can add one, RLC SN zero setting simultaneously.Whenever receive or send a RLC packet that RLC SN can add one.
Be not difficult to find out that there is following shortcoming in the subsequent process scheme of carrying out about RNC of 3GPP protocol description:
One, 3GPP agreement stipulate that when comprising COUNTC information in the COUNTER CHECK response message RNC can discharge RRC and connect, and its amplification implication is also can not discharge RRC to connect.Connect for discharging under which kind of situation, do not discharge connection under which kind of situation, the 3GPP agreement does not further specify, and therefore is unfavorable for practical operation.
Its two, in actual applications,, can cause some not right releases, thereby cause cutting off rate to improve if all discharge the RRC connection processing for COUNTER CHECK results abnormity situation.
Why having wrong release in live network, is because the shortcoming of COUNTER CHECK flow process itself causes.Because be responsible for to transmit the COUNTER CHECK flow process of COUNTC information, belong to signaling process, use be signalling path, and the counter of UE and RNC is to count according to the number of times of the transmitting-receiving RLC packet of user's face.Because user's face and signaling plane be configuration parameter different of interface aloft, can cause the signaling transmission to be slower than transfer of data.In addition owing to air interface protocol for there is the mechanism of re-transmission in protected data, when packet loss, will trigger re-transmission.If just be that signaling retransmits, and user data does not retransmit, and can increase the time difference of signaling transmission and transfer of data again.These time differences are accumulated, the user face data bag will be occurred and arrive earlier UE, make that the HFN in the counter of UE adds one, but the COUNTER CHECK flow process message that RNC the sends situation of no show UE still, thereby cause the HFN of RNC and UE inconsistent.At this moment, connect the release processing if carry out RRC according to prior art, the connection that will make the mistake discharges.
Its three, the processing scheme of not overtime or loss situation in the 3GPP agreement about COUNTER CHECK response message.
For response message, may be owing to some cause specific, for example packet loss etc. does not arrive RNC in official hour.At this moment, connect if discharge RRC for the integrality that guarantees user data, the connection that may make the mistake equally discharges, and causes cutting off rate to improve.
Therefore, if just discharge the RRC connection, may cause cutting off rate index variation in case COUNTER CHECK results abnormity situation occurs; And if cancel this function, then the integrality of user data can't be guaranteed again.
Summary of the invention
In view of there is existing problem in above-mentioned prior art, the purpose of this invention is to provide a kind of method that improves checking function fault-tolerant performance of counter, not only can reduce the mistake release rate of radio resource control connection, also can not influence the integrality of user data simultaneously.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of method that improves checking function fault-tolerant performance of counter, it is characterized in that, comprise the steps:
A, setting allow the inconsistent scope of Hyper Frame Number;
B, counter is checked that the Hyper Frame Number in message and the response message compares, when comparative result does not surpass the inconsistent scope of permission Hyper Frame Number of described setting, think that then the counter check result is normal, end counter is checked flow process.
Described step B also comprises:
B2, when described comparative result surpasses the inconsistent scope of permission Hyper Frame Number of described setting, think that then the counter check result is unusual, discharge the radio resource control connection.
Described step B2 also comprises the steps:
B21, when described comparative result surpasses the inconsistent scope of permission Hyper Frame Number of described setting, the described comparative result of accumulative total surpasses the number of times of the inconsistent scope of permission Hyper Frame Number of described setting, and, judge that the counter check result also handles according to the inconsistent threshold value of the Hyper Frame Number of cumulative number and setting accumulative total.
Described step B21 specifically comprises:
B211, the inconsistent threshold value of the Hyper Frame Number of described cumulative number and described setting accumulative total is compared, when described cumulative number does not surpass the inconsistent threshold value of Hyper Frame Number accumulative total of described setting, think that then the counter check result is normal, end counter is checked flow process.
Described step B21 specifically comprises:
B212, the inconsistent threshold value of the Hyper Frame Number of described cumulative number and described setting accumulative total is compared, when described cumulative number surpasses the inconsistent threshold value of Hyper Frame Number accumulative total of described setting, think that then the counter check result is unusual, discharge the radio resource control connection.
When described counter is checked that response message is overtime or lost, described cumulative number is added one, and carry out described step B21.
In addition, control counter is checked the initiation opportunity of flow process.
When described Radio Link control sequence number meets or exceeds predetermined numerical value, forbid that described counter checks the initiation of flow process.
As seen from the above technical solution provided by the invention, the present invention fully takes into account the actual operating environment of wireless network, effectively improved the fault-tolerance of counter audit function, the mistake that not only can reduce the radio resource control connection discharges, reduce cutting off rate, can guarantee the integrality of user data simultaneously again
Description of drawings
Fig. 1 is a CONTER CHECK flow chart of the prior art;
Fig. 2 is the flow chart of the method for the invention.
Embodiment
Core concept of the present invention is: suitably relax the criterion of COUNTER CHECK results abnormity on the basis of existing technology, reduce the mistake release that RRC connects, increase the fault-tolerance of COUNTER CHECK function.Concrete mode comprises:
1, set to allow the inconsistent scope of HFN, when the comparative result of the HFN in COUNTER CHECK message and the response message in this scope, think that COUNTER CHECK result is normal, COUNTER CHECK flow process finishes; Otherwise, think to discharge COUNTER CHECK results abnormity RRC and connect.
2, set the inconsistent threshold value of HFN accumulative total, the HFN in accumulative total COUNTER CHECK message and the response message is not at the number of times of the inconsistent scope of setting of permission HFN, when surpassing threshold value.Think and discharge connection by COUNTER CHECK results abnormity.
3, overtime or when losing when COUNTER CHECK response message, the inconsistent number of times of described accumulative total HFN is added one, when surpassing threshold value, also discharge RRC and connect.
4, on the initiation opportunity of control COUNTER CHECK flow process, when RLC SN meets or exceeds predetermined numerical value, forbid initiating COUNTER CHECK flow process.
For the present invention there being further understanding, method of the present invention is described in detail below in conjunction with accompanying drawing.
The specific implementation of the method for the invention may further comprise the steps as shown in Figure 2:
Step 21: COUNTER CHECK flow process is set initiates the cycle, set the inconsistent scope of HFN that allows, set the inconsistent threshold value of HFN accumulative total.
By user's maintenance terminal initiation cycle of COUNTER CHECK flow process is set, sets the inconsistent threshold value of HFN accumulative total in the counter of the inconsistent scope of HFN in the counter that allows UE and RNC and UE and RNC.
Inconsistent scope of described permission HFN and the inconsistent threshold value of accumulative total should be determined according to user's actual need.
Generally, the inconsistent scope of described permission HFN is set at 0 to 3; The inconsistent threshold settings of described accumulative total HFN is 3 comparatively suitable.
For the generation of the inconsistent situation of HFN that reduces RNC and UE, should control the initiation opportunity of COUNTERCHECK flow process.When RLC SN meets or exceeds predetermined numerical value, forbid initiating COUNTER CHECK flow process.
Described predetermined value should be less than the maximum of RLC SN, can for than the maximum little 10 of RLC SN with interior arbitrary numerical value.
Step 22:RNC sends COUNTER CHECK message to UE.
When the COUNTER of the described setting CHECK cycle arrived, the RNC in the Radio Network System sent COUNTER CHECK message to UE, and wait acknowledge.The HFN that comprises the up-downgoing of each RB in this COUNTER CHECK message.
Step 23:UE replys COUNTER CHECK response message to RNC.
After UE receives described COUNTER CHECK message, the HFN that comprises in this message and the HFN of self are compared.According to comparative result, reply COUN TERCHECK response message then to RNC.UE is as follows to the concrete condition that RNC replys response message:
When the HFN that comprises in the COUNTER CHECK message that UE receives and the HFN of self were consistent, UE did not comprise any HFN information in the COUNTER CHECK response message that RNC replys;
When the HFN of the HFN that comprises in the COUNTER CHECK message that UE receives and self was inconsistent, UE comprised COUNTC information in the COUNTER CHECK response message that RNC replys, and this COUNTC information is made up of HFN and RLC SN.
Step 24: judge whether to surpass the inconsistent scope of HFN that allows.
Judge whether the HFN in COUNTER CHECK message and the response message surpasses the inconsistent scope of permission HFN of described setting, and promptly whether the HFN in the counter of UE and RNC surpasses the inconsistent scope of permission HFN of described setting.Concrete determination methods comprises:
HFN in HFN in the described COUNTER CHECK message and the described COUNTER CHECK response message is compared;
When described comparative result did not surpass the inconsistent scope of setting of permission HFN, then execution in step 25;
When described comparative result surpassed the inconsistent scope of setting of permission HFN, then execution in step 26.
When not comprising any HFN information in the COUNTER CHECK response message, described comparative result is 0, belongs to the inconsistent scope of permission HFN of setting, execution in step 25.
Step 25:COUNTER CHECK result is normal, and flow process finishes.
When the HFN comparative result in described COUNTER CHECK message and the response message does not surpass the inconsistent scope of permission HFN of described setting, think that then COUNTER CHECK result is normal, this COUNTER CHECK flow process normal termination.At this moment, RNC is consistent with data integrity between UE.
Step 26: judge whether to surpass the inconsistent threshold value of HFN accumulative total.
When the HFN comparative result in described COUNTER CHECK message and the response message surpasses the inconsistent scope of permission HFN of described setting, then further judge whether to surpass the inconsistent threshold value of HFN accumulative total, and handle according to judged result.Concrete determination methods is as follows:
HFN comparative result in accumulative total COUNTER CHECK message and the response message surpasses the number of times of the inconsistent scope of permission HFN of described setting;
The inconsistent threshold value of HFN accumulative total of described cumulative number and described setting is compared;
When described cumulative number did not surpass the inconsistent threshold value of HFN accumulative total of described setting, then execution in step 25, think that COUNTER CHECK result is normal, this COUNTER CHECK flow process normal termination;
When described cumulative number result surpassed the inconsistent threshold value of HFN accumulative total of described setting, then execution in step 27.
Step 27:COUNTER CHECK results abnormity discharges connection.
When the accumulative total of the HFN comparative result in described COUNTER CHECK message and the response message surpasses the inconsistent threshold value of HFN accumulative total of described setting, then think to discharge COUNTER CHECK results abnormity RRC and connect.
Overtime or when losing when COUNTER CHECK response message, the cumulative number that HFN comparative result in described COUNTER CHECK message and the response message is surpassed the inconsistent scope of permission HFN of described setting adds one, and execution in step 26, judge whether to surpass the inconsistent threshold value of HFN accumulative total, if do not surpass described threshold value, then finish this COUNTER CHECK flow process; If surpass described threshold value, then discharge RRC and connect.
The present invention fully takes into account the actual operating environment of wireless network, has improved the fault-tolerance of counter audit function effectively, and the mistake that not only can reduce the radio resource control connection discharges, and can guarantee the integrality of user data simultaneously again.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement; all should be encompassed within protection scope of the present invention therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1, a kind of method that improves checking function fault-tolerant performance of counter is characterized in that, comprises the steps:
A, setting allow Hyper Frame Number and the inconsistent scope of the Hyper Frame Number in the response message in the counter inspection message;
B, counter is checked that the Hyper Frame Number in message and the response message compares, when comparative result does not surpass the inconsistent scope of permission Hyper Frame Number of described setting, think that then the counter check result is normal, end counter is checked flow process.
2, method according to claim 1 is characterized in that, described step B also comprises:
B2, when described comparative result surpasses the inconsistent scope of permission Hyper Frame Number of described setting, think that then the counter check result is unusual, discharge the radio resource control connection.
3, method according to claim 2 is characterized in that, described step B2 also comprises the steps:
B21, when described comparative result surpasses the inconsistent scope of permission Hyper Frame Number of described setting, the described comparative result of accumulative total surpasses the number of times of the inconsistent scope of permission Hyper Frame Number of described setting, and, judge that the counter check result also handles according to the inconsistent threshold value of the Hyper Frame Number of cumulative number and setting accumulative total.
4, method according to claim 3 is characterized in that, described step B21 specifically comprises:
B211, the inconsistent threshold value of the Hyper Frame Number of described cumulative number and described setting accumulative total is compared, when described cumulative number does not surpass the inconsistent threshold value of Hyper Frame Number accumulative total of described setting, think that then the counter check result is normal, end counter is checked flow process.
5, method according to claim 3 is characterized in that, described step B21 specifically comprises:
B212, the inconsistent threshold value of the Hyper Frame Number of described cumulative number and described setting accumulative total is compared, when described cumulative number surpasses the inconsistent threshold value of Hyper Frame Number accumulative total of described setting, think that then the counter check result is unusual, discharge the radio resource control connection.
6, method according to claim 3 is characterized in that, when described counter is checked that response message is overtime or lost, described cumulative number is added one, and carry out described step B21.
According to each described method of claim 1 to 6, it is characterized in that 7, control counter is checked the initiation opportunity of flow process.
8, method according to claim 7 is characterized in that, when described Radio Link control sequence number meets or exceeds predetermined numerical value, forbids that described counter checks the initiation of flow process.
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| CNB2005100803788A CN100502281C (en) | 2005-07-04 | 2005-07-04 | Method for improving checking function fault-tolerant performance of counter |
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| CNB2005100803788A CN100502281C (en) | 2005-07-04 | 2005-07-04 | Method for improving checking function fault-tolerant performance of counter |
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| CN100502281C true CN100502281C (en) | 2009-06-17 |
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| CN102480747B (en) * | 2010-11-25 | 2014-12-03 | 大唐移动通信设备有限公司 | Service bearer counting check method and apparatus thereof |
| CN102387260B (en) * | 2011-10-20 | 2014-03-12 | 中兴通讯股份有限公司 | Method and system for determining dropped call rate |
| CN102572880B (en) * | 2011-12-29 | 2019-01-04 | 上海中兴软件有限责任公司 | Serial number detection method, apparatus and system |
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Effective date of registration: 20210422 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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