CN100397937C - Wireless link detecting method - Google Patents
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- CN100397937C CN100397937C CNB2004100623598A CN200410062359A CN100397937C CN 100397937 C CN100397937 C CN 100397937C CN B2004100623598 A CNB2004100623598 A CN B2004100623598A CN 200410062359 A CN200410062359 A CN 200410062359A CN 100397937 C CN100397937 C CN 100397937C
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Abstract
The present invention discloses a wireless link detecting method which comprises the following steps: when a private channel is converted from a link building state to a multi-frame link building state, a primitive is sent out; whether the private channel receives the primitive or not from the period that channel activation confirmation is received to the period that channel release confirmation is received is detected so as to determine the normality of the uplink and the downlink directions of the private channel. Thereby, the wireless link detecting method of the present invention can simultaneously detect the normality of the uplink and the downlink directions of the private channel, and can further detect the normality of the uplink and the downlink directions of a public channel.
Description
Technical field
The present invention relates to the detection method of Radio Link in the communication system.
Background technology
In the communications field, the mode of transmission of radio links data has obtained using widely, such as in global system for mobile communications (GSM, Global System for Mobile Communications).Gsm system mainly comprises: travelling carriage (MS, Mobile Station), base station sub-system (BSS, Base StationSystem), network and switching subsystem (NSS, Network and Switch System) and OMC operation and maintenance centre (OMC, Operation and Maintenance Center).Wherein,
MS is used for receiving and transmission mobile subscriber request and information; NSS is used to manage the communication between the mobile subscriber; BSS is responsible for distributing and manages the Radio Link between the miscellaneous equipment of transmission path, particularly MS between MS and the NSS and GSM; OMC is used for BSS is managed for configuration and attended operation.
Described BSS further comprises base transceiver station (BTS, Base Transceiver Station) and base station controller (BSC, Base Station Controller).Wherein,
BTS is the wireless receiving and dispatching letter equipment of serving certain sub-district, is used for by connecting between Radio Link and the MS; BSC is responsible for the monitor management of wireless network management, RRM and wireless base station, the foundation of Radio Link between control MS and the BTS, is connected and management such as dismounting, and switching, transmission and the calling of MS finished in control.
The information transmission process of GSM is as follows:
Step 10) MS sends the request of access by common signal channel to BTS;
Step 11) BTS further issues BSC with this information after the common signal channel up direction receives the request of access;
After the access request that step 12) BCS sends according to BTS, issue MS by BTS for this allocation of communications dedicated channel and with the dedicated channel information of distributing;
Step 13) BTS is the dedicated channel information notice MS of this allocation of communications by common signal channel down direction BSC;
Step 14) MS is received as the dedicated channel information of this allocation of communications at the common signal channel down direction;
Step 15) MS can carry out the mutual of call signaling by dedicated channel.
From the above, the Radio Link of gsm system is divided into common signal channel and dedicated channel according to function, and dedicated channel is used for carrying out the mutual of actual call signaling; Common signal channel is used for transmitting the preceding information of actual call signaling.Be that common signal channel or dedicated channel all are divided into both direction, one is the channel of down direction, sends the channel of information to MS as BTS; Another is the channel of up direction, and promptly MS sends the channel of information to BTS.
The quality of radio link quality directly has influence on service ability and the performance of GSM, thereby the valid wireless chain circuit detecting method is very important for the problem of timely discovery system and the maintainability of improving system.
Existing wireless link detecting method is to send signal in the BTS side, measures the real output value of the signal that is sent, and this real output value and expection output valve are compared, if comparative result equates that then expression is normal, otherwise expression is unusual.Because prior art adopts in the BTS side and sends signal, so whether can only detect Radio Link normal at down direction.
Because reference value without comparison on up direction, be after BTS receives the signal of MS transmission, the signal that can't know MS expection transmission is much, so whether the Radio Link that can't detect on the up direction is normal, promptly prior art can only detect dedicated channel or whether common signal channel is normal on down direction.
Only when dedicated channel normal and also just often at down direction at up direction, can show that just dedicated channel is normal, whether prior art can't detect on the up direction normal, can't realize promptly whether dedicated channel detects normally.Can't realize also in like manner whether common signal channel detects normally.
Even prior art can realize the detection of dedicated channel up direction, but determine dedicated channel whether normal need whether detect the upstream and downstream both direction respectively normal, by considering up direction testing result and down direction testing result, and then judge and reach a conclusion, whether normal, promptly determine according to a testing result whether designated lane is normal according to a testing result if can not detect the upstream and downstream both direction simultaneously.
Summary of the invention
The problem to be solved in the present invention provides the Radio Link normal wireless link detecting method whether on a kind of up-downlink direction that can detect dedicated channel simultaneously.
In order to address the above problem the technical scheme of wireless link detecting method of the present invention:
A kind of wireless link detecting method is characterized in that, may further comprise the steps:
When dedicated channel when state exchange is to the link setup completion status from link setup carries out, by knowing that link setup finishes module and send primitive;
Detection is in described dedicated channel is received during the channel activation confirmation discharge to be confirmed to channel, and whether signaling processing module receives described primitive, to determine whether described dedicated channel up-downlink direction is all normal.
Wireless link detecting method of the present invention also comprises the steps:
Set the value that detects radix, unusual thresholding and recover thresholding, wherein,
Described detection radix is used to represent the number of times that detects,
Described unusual thresholding is used for representing the minimum limit value of unusual ratio occurring through after time detection of described detection radix, represents that if described ratio surpasses minimum limit value described dedicated channel appearance is unusual,
Described recovery thresholding, after being used for representing to occur unusually, the peak that described unusual ratio drops to represents that described dedicated channel disappears unusually if described unusual ratio drops to described peak;
After time detection of described detection radix, add up described dedicated channel and unusual ratio occurs;
Described ratio reaches the value of unusual thresholding, then triggers alarming processing and carries out fault selfreparing processing;
After having triggered alarming processing,, add up described dedicated channel once more and unusual ratio occurs every a period of time interval;
The ratio that described dedicated channel is unusual drops to the value of recovering thresholding, then triggers the alarm disappearance and handles.
Wireless link detecting method of the present invention, further comprising the steps of:
Add up the access at random of described common signal channel and switch and insert;
Insert if having at random, represent that then described common signal channel up-downlink direction is all normal;
Insert and not access at random if having only to switch, represent that then described common signal channel up direction is unusual and normal on the down direction;
If not only switch access but also do not insert at random, represent that then described common signal channel down direction is unusual.
The present invention also provides a kind of wireless link detecting method, may further comprise the steps:
Set fiducial value;
Obtain the level of described dedicated channel up direction and down direction;
Obtain level poor of up direction and down direction;
The absolute value of the difference of described level is not more than fiducial value, and to represent this time to detect described dedicated channel normal.
Wireless link detecting method of the present invention also comprises the steps:
The value of alarming threshold and recovery thresholding is set, wherein,
Described alarming threshold is used to be illustrated in the predetermined amount of time, the minimum limit value of unusual ratio occurs, and it is unusual to represent that if described ratio reaches minimum limit value described dedicated channel occurs;
Statistics detects described dedicated channel and unusual number of times occurs;
Calculate described dedicated channel and unusual ratio occurs;
Described ratio reaches described alarming threshold, then triggers alarming processing;
After having triggered alarming processing,, add up and calculate described dedicated channel once more and unusual ratio occurs every a period of time interval;
Described ratio drops to the recovery thresholding, then triggers the alarm disappearance and handles
Wireless link detecting method of the present invention, further comprising the steps of:
Add up the access at random of described common signal channel and switch and insert;
Insert if having at random, represent that then described common signal channel up-downlink direction is all normal;
Insert and not access at random if having only to switch, represent that then described common signal channel up direction is unusual and normal on the down direction;
If not only switch access but also do not insert at random, represent that then described common signal channel down direction is unusual.
Compared with prior art, the beneficial effect of wireless link detecting method of the present invention:
The technical scheme of wireless link detecting method of the present invention is when state exchange is to the link setup completion status from link setup carries out when dedicated channel, send primitive, in described dedicated channel is during receive the channel activation confirmation and discharge to confirm to channel, detects and whether receive described primitive.If receive described primitive, it is normal that expression this time detects described dedicated channel; Otherwise it is unusual that expression this time detects described dedicated channel.Can detect whether normal on the up-downlink direction of dedicated channel.
Another kind of wireless link detecting method provided by the invention is judged dedicated channel by the difference of the level of the up-downlink direction of statistics and calculating dedicated channel and is caused abnormal situation owing to the up-downlink direction imbalance occurs.
At last, whether the number of times of wireless link detecting method of the present invention by switch to insert and insert at random on the statistics common signal channel exists the situation of switching the message that inserts and insert at random to judge common signal channel whether normal on up-downlink direction by analyzing.
Description of drawings
Fig. 1 is the information transmission process figure of GSM;
Fig. 2 is the flow chart of wireless link detecting method of the present invention;
Fig. 3 is the further improved flow chart that detects the dedicated channel normal condition;
Fig. 4 is the flow chart that detects the common signal channel normal condition;
Fig. 5 detects because of the uneven flow chart that causes dedicated channel of up-downlink direction;
Fig. 6 detects because of the uneven further improved flow process that causes dedicated channel of up-downlink direction;
Fig. 7 is the detection schematic diagram of the embodiment of wireless link detecting method of the present invention;
Fig. 8 is the schematic diagram of appearance situation of the embodiment of wireless link detecting method of the present invention.
Embodiment
As shown in Figure 2, wireless link detecting method of the present invention may further comprise the steps:
Step 20) when dedicated channel when state exchange is to the link setup completion status from link setup carries out, sends primitive;
Step 21) in described dedicated channel is being received during the channel activation confirmation discharge to be confirmed to channel, detects and whether receive described primitive;
If receive described primitive, it is normal that expression this time detects described dedicated channel; Otherwise it is unusual that expression this time detects described dedicated channel.
After state referred to that dedicated channel has been activated during link setup carried out, begin to finish during this period of time to link setup from link setup; The link setup completion status refers to carry out between the mobile device the mutual of actual call signaling.Represent when state exchange is to the link setup completion status from link setup carries out that link setup finishes, because the process of link setup needs both sides mutual, that is to say that the link setup primitive through the down direction transmission is received, confirm that through the link setup of up direction transmission primitive also is received, show that link setup completes successfully.Since the link setup primitive through the down direction transmission is received, show that down direction is normal; Confirm that through the link setup of up direction transmission primitive is received, show that up direction is normal, so when link setup is finished, send primitive, receive the channel activation confirmation discharge to confirm to channel during in, detect and whether to receive described primitive,, show that link setup completes successfully and all normal at up direction and down direction if receive described primitive, otherwise show that link setup does not complete successfully, it is unusual promptly to have at least a direction to occur.
Whether the explanation dedicated channel is normally unreasonable owing to promptly reaching a conclusion by one-time detection, dedicated channel occurs unusual when perhaps only detecting, other the time all normal, thereby can detect number of times by setting one, statistics unusual situation occurs and judges in detecting number of times.So, further, wireless link detecting method of the present invention, whether weigh described dedicated channel by detection radix, thresholding and recovery thresholding normal, wherein,
Described detection radix is used to represent the number of times that detects;
Described unusual thresholding is used for representing the minimum limit value of unusual ratio occurring through after time detection of described detection radix, represents that if described ratio surpasses minimum limit value described dedicated channel appearance is unusual;
Described recovery thresholding, after being used for representing to occur unusually, the peak that described unusual ratio drops to represents that described dedicated channel disappears unusually if described unusual ratio drops to described peak;
As shown in Figure 3, described wireless link detecting method also comprises the steps:
Step 30) sets the value that detects radix, unusual thresholding and recover thresholding;
Step 31) through after time detection of described detection radix, adds up described dedicated channel and unusual ratio occurs;
Step 32) judges whether described ratio reaches the value of unusual thresholding;
If do not reach the value of unusual thresholding, represent that described dedicated channel is normal, otherwise carry out following steps,
Step 33) triggers alarming processing and carry out the fault selfreparing and handle;
Step 34) triggered alarming processing after, every a period of time at interval, add up described dedicated channel once more and unusual ratio occurs;
Step 35) judges whether described ratio drops to the value of recovering thresholding;
If judged result is sure, then execution in step 36) trigger and alarm the processing that disappears;
If judged result negates that then repeated execution of steps 34).
For dedicated channel, if up-downlink direction level imbalance also can cause the undesired of dedicated channel, abnormal detection method of the dedicated channel that causes at this kind reason as shown in Figure 5, described wireless link detecting method is further comprising the steps of:
Step 50) set fiducial value, whether described fiducial value is used for weighing described dedicated channel normal;
Step 51) obtains the level of described dedicated channel up direction and down direction;
Step 52) obtains level poor of up direction and down direction;
Step 53) judges that whether the absolute value of difference of described level is greater than fiducial value;
If judged result is sure, it is unusual that then expression this time detects described dedicated channel appearance;
If judged result negates that it is normal then to represent this time to detect described dedicated channel.
In like manner, only judge promptly by one-time detection whether dedicated channel is normally unreasonable, so, further, also determine whether to trigger alarming processing and alarm disappearance processing by alarming threshold and recovery thresholding, wherein,
Described alarming threshold is used to be illustrated in the predetermined amount of time, the minimum limit value of unusual ratio occurs, and it is unusual to represent that if described ratio reaches minimum limit value described dedicated channel occurs;
As shown in Figure 6, described wireless link detecting method also comprises the steps:
Step 60) alarming threshold and recover the value of thresholding is set;
Step 61) statistics detects the unusual number of times of described dedicated channel appearance;
Step 62) calculates described dedicated channel and unusual ratio occurs;
Step 63) judges whether described ratio reaches described alarming threshold;
If do not reach described alarming threshold, represent that described dedicated channel is normal; Otherwise carry out following step,
Step 64) triggers alarming processing;
Step 65) every a period of time interval, adds up and calculates the unusual ratio that described dedicated channel occurs once more;
Step 66) judges whether described ratio drops to the recovery thresholding;
If judged result negates that then execution in step 65), otherwise execution in step 67) trigger and alarm the processing that disappears.
Further, whether wireless link detecting method of the present invention also to can be used for detecting common signal channel normal.As shown in Figure 4, described wireless link detecting method is further comprising the steps of:
Step 40) access at random of the described common signal channel of statistics and switching insert;
Step 41) judgement inserts and switches the situation of access at random,
Insert if having at random, represent that then described common signal channel is all normal at up-downlink direction;
Insert and not access at random if having only to switch, represent that then described common signal channel up direction is unusual but down direction is normal;
If not only do not cut at random but also do not insert at random, represent that then described common signal channel down direction is unusual.
For common signal channel, if up direction is unusual, common signal channel does not have at random and inserts; If down direction is unusual, common signal channel does not have to switch and inserts, and does not more have at random and inserts; Having only up-downlink direction all normally just can have at random inserts.
Detecting with BTS among the GSM and the Radio Link between the MS below is that example describes.
In GSM, BSC is used for setting up, connects, discharges and the management Radio Link.This example is used to detect the dedicated channel of link access procedure (LAPDm, Link Access Procedure on the Dm channel) layer.As shown in Figure 7, idiographic flow is as follows:
BSC activates request to the signaling processing module transmitting channel of BTS;
After signaling processing module receives channel activation request, to BSC transmitting channel activation confirmation;
Dedicated channel between BTS and MS promptly is activated like this.
Dedicated channel is carried out following step after activating:
MS sends link setup primitive (as: SABME) to the LAPDm layer module of LAPDm layer Radio Link;
LAPDm layer module sends to MS confirms primitive (as: UA);
MS sends link primitive (as: I) to LAPDm layer module;
When state (being the transmission of link setup primitive SABME) was transformed into link setup completion status (promptly entering call signalling flow) from link setup carries out, LAPDm layer module sent a primitive (as: LAPDm Est Done) to signaling processing module at LAPDm layer Radio Link;
Enter call signalling flow, promptly carry out the mutual of signaling;
After Signalling exchange finished, BSC discharged primitive (as: RF ChannelRelease) to the signaling processing module transmitting channel;
Signaling processing module discharges to the BSC transmitting channel confirms primitive (as: RF Channel Rel Ack).
So far the dedicated channel of being set up is released.
Signaling processing module is receiving that the channel activation confirmation is to receiving that channel discharges in the affirmation during this period of time, detect and whether to have received at LAPDm layer Radio Link when state exchange is to the link setup completion status from link setup carries out, LAPDm layer module is to the primitive (as: LAPDm Est Done) of its transmission, if received described primitive, described dedicated channel up-downlink direction was all normal when expression this time detected, otherwise it is unusual to represent that described dedicated channel occurs.
State referred to that MS sends SABME to LAPDm layer module during described link setup carried out, and received mobile device to LAPDm layer module and sent I (link setup is finished).Described link setup completion status refers to that link setup completes successfully, the reciprocal process of beginning call signaling.
Down direction is normal if up direction is unusual, and after dedicated channel was activated, LAPDm layer module do not receive SABME, and link setup can't be finished, and BSC will discharge request by transmitting channel so after a while, and LAPDm layer module transmitting channel discharges to be confirmed;
Up direction is normal if down direction is unusual, after dedicated channel is activated, after LAPDm layer module received SABME, LAPDm layer module sends UA to MS after receiving SABME, MS can not receive UA on down direction, make link setup also can't complete successfully, BSC will discharge request by transmitting channel so after a while;
If all unusual link setup of up-downlink direction can't complete successfully equally, BSC will discharge request by transmitting channel so after a while.
From the above, because link setup can't complete successfully, the primitive that sends when state (being the transmission of link setup primitive SABME) is transformed into link setup completion status (promptly entering call signalling flow) from link setup carries out so, during channel activation confirmation to channel discharged affirmation, BTS just can not receive this primitive.
Represent that up-downlink direction is all normal if receive this primitive, otherwise expression has a direction to occur unusually at least.
As shown in Figure 8, LAPDm layer module do not receive the link setup primitive (SABME) that MS sends, and signaling processing module does not receive the primitive that LAPDm layer module sends yet, and the not success of expression link setup does not just more have the mutual of physical signaling.
Setting for detecting radix, unusual thresholding and recovering the value of thresholding needs to determine according to the situation of current area telephone traffic.For the bigger sub-district of telephone traffic, detect radix and can dispose greatly, and unusual thresholding and recover thresholding can dispose littler, such as: the detection radix is 20, unusually thresholding be 60% and the recovery thresholding be 40%; For the smaller sub-district of telephone traffic, detect radix can dispose littler, and unusual thresholding and recover thresholding and can dispose greatly, such as: the detection radix is 10, unusually thresholding be 80% and the recovery thresholding be 50%.
For prevent wireless chaining status and normal between concussion repeatedly, the value of recovering thresholding should be lower than the value of unusual thresholding.
This example is set and detected radix is 40, and unusual thresholding is 60%, and recovering thresholding is 40%, is the situation that unit statistics dedicated channel occurs with the time slot.For example, certain time slot is configured to the half rate type, therefore the physical channel of two half rates of this time slot existence is used for the communication on the dedicated channel, when taking (each busy channel all channel is carried out one-time detection) number of times sum, two physical channels of this time slot reach 20 * 2 promptly 40 the time, i.e. expression detects number of times and has reached detection radix 40, and whether at this moment just can add up dedicated channel normal.
Is 1,2,3 with the channel occupancy that occurs on this time slot according to time order and function order number consecutively.。。40,41,42, when channel occupancy is accumulated to the 40th time, promptly reached the detection radix, unusual ratio appearred during statistics was numbered 1～40 totally 40 secondary channels take; Next 1 secondary channel taking place takies, is numbered 41, this moment will add up 2～41 totally 40 secondary channels take in the appearance situation; 1 secondary channel takes place again take, be numbered 42, the unusual ratio of appearance in will add up 3～42 this moment totally 40 secondary channels taking; And the like.If this time slot half rate physical channel is constantly occupied, each only taking at nearest 40 subchannels added up, and is equivalent to the detection window that exists one constantly to move forward, and what guarantee the statistical information reflection is last state.For example, if the dedicated channel that is detected: 1～8,9～20 is normal, 21～35,36～39 is normal, and 40, add up this moment 1～40 detect for totally 40 times in situation equal 60% for (8+15+1)/40, reached the value of unusual thresholding, then trigger alarming processing and carry out fault selfreparing processing; It is 41～47 all normal that back to back 7 secondary channels take, in the time of the 47th time statistics 8～47 totally 40 secondary channels in taking unusual ratio equal 42.5% for (1+15+1)/40, do not reach recovery thresholding 40%, be not for further processing; 1 secondary channel takes place again take 48 for normal, add up this moment 9～48 take for totally 40 times in unusual ratio equal 40% for (15+1)/40, reach and recover thresholding 40%, then trigger the alarm processing that disappears.
For the dedicated channel of Radio Link, if the level imbalance of up direction and down direction, i.e. there is big difference in up-downgoing coverage, can cause a large amount of call exceptions, and only part is called out normal.The abnormal detection method of dedicated channel that causes for this kind reason, as shown in Figure 5.
In this example, at first set a fiducial value, be 30dbm;
Report the level that extracts described dedicated channel up direction and up direction the measurement report of BSC from BTS;
Calculate level poor of up direction and down direction;
If the absolute value of the difference of described level is in fiducial value, promptly in the 30dbm, show normal, otherwise represent undesired.
When the absolute value of the difference of calculating the up-downlink direction level, need the effect of compensation power control, the benchmark of up-downgoing comparison is all adjusted to 0 power grade, for example: the up direction level is-60dbm, the MS power grade is 4 grades, the down direction level is-70dbm, the BTS power grade is 3 grades, the up direction decision level equals-52dbm for-60+2 * 4 so, and the down direction decision level equals-64dbm for-70+2 * 3, the difference of up-downlink direction level is-64-(52) promptly-12dbm, represent the descending descending 12dbm that is weaker than, 12dbm is within the up-downgoing balance effective range so this time detect less than 30dbm, and this testing result is normal.
Setting for alarming threshold and recovery thresholding will be determined according to the current area telephone traffic, sets alarming threshold in this example and is respectively 80% and 50% with the recovery thresholding.
Whether balance is at whole carrier frequency owing to the up-downlink direction level, do not distinguish time slot and channel, so all analyze at each measurement report that this carrier frequency reports, this example adopts 0:00 every night, up-downlink direction level data to accumulative total in a whole day is added up, check ratio,, then trigger alarming processing if reach the alarming threshold 80% of setting.And, in case after this alarm occurring, each hour will be added up the unbalanced situation of up-downlink direction level again,, then trigger the alarm disappearance and handle if ratio has dropped to recovery thresholding 50%; Otherwise, be not for further processing.
For the common signal channel of Radio Link,, show that then described common signal channel up-downlink direction is all normal if BTS can successfully receive the random accessing message that MS reports; The message that does not insert at random if can only receive the message that switch to insert in a time period shows then that described common signal channel up direction is unusual and down direction is normal; If in a time period, not only switched message that inserts but also the message that does not insert at random, shown then that described common signal channel up-downlink direction was all unusual.According to this principle, adopt flow process as shown in Figure 4 that common signal channel is detected.In a period of time, statistics is switched the number of times that inserts and insert at random, can reach a conclusion.The selection of the concrete time period of detecting need be taken all factors into consideration (comprising: detect zero-time and termination time, and detection time, the segment length was short) the general telephone traffic situation of current area, and user's habits and customs.For example: at dead of night, telephone traffic can be considerably less, so during this period of time generally not as section detection time.Select the big time period of telephone traffic to add up the truth that can reflect common signal channel.
In sum, whether wireless link detecting method of the present invention can either detect dedicated channel simultaneously normal, and whether can detect common signal channel again normal.
The above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite of the principle that does not break away from wireless link detecting method of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection range of wireless link detecting method of the present invention.
Claims (6)
1. a wireless link detecting method is characterized in that, may further comprise the steps:
When dedicated channel when state exchange is to the link setup completion status from link setup carries out, by knowing that the module that link setup is finished sends primitive;
Detection is in described dedicated channel is received during the channel activation confirmation discharge to be confirmed to channel, and whether signaling processing module receives described primitive, to determine whether described dedicated channel up-downlink direction is all normal.
2. wireless link detecting method as claimed in claim 1 is characterized in that, also comprises the steps:
Set the value that detects radix, unusual thresholding and recover thresholding, wherein,
Described detection radix is used to represent the number of times that detects,
Described unusual thresholding is used for representing the minimum limit value of unusual ratio occurring through after time detection of described detection radix, represents that if described ratio surpasses minimum limit value described dedicated channel appearance is unusual,
Described recovery thresholding, after being used for representing to occur unusually, the peak that described unusual ratio drops to represents that described dedicated channel disappears unusually if described unusual ratio drops to described peak;
After time detection of described detection radix, add up described dedicated channel and unusual ratio occurs;
Described ratio reaches the value of unusual thresholding, then triggers alarming processing and carries out fault selfreparing processing;
After having triggered alarming processing,, add up described dedicated channel once more and unusual ratio occurs every a period of time interval;
The ratio that described dedicated channel is unusual drops to the value of recovering thresholding, then triggers the alarm disappearance and handles.
3. wireless link detecting method as claimed in claim 1 or 2 is characterized in that, and is further comprising the steps of:
The access at random and the switching of statistics common signal channel insert;
Insert if having at random, represent that then described common signal channel up-downlink direction is all normal;
Insert and not access at random if having only to switch, represent that then described common signal channel up direction is unusual and normal on the down direction;
If not only switch access but also do not insert at random, represent that then described common signal channel down direction is unusual.
4. a wireless link detecting method is characterized in that, may further comprise the steps:
Set fiducial value;
Obtain the level of described dedicated channel up direction and down direction;
Obtain level poor of up direction and down direction;
The absolute value of the difference of described level is not more than fiducial value, and to represent this time to detect described dedicated channel normal.
5. wireless link detecting method as claimed in claim 4 is characterized in that, also comprises the steps:
The value of alarming threshold and recovery thresholding is set, wherein,
Described alarming threshold is used to be illustrated in the predetermined amount of time, the minimum limit value of unusual ratio occurs, and it is unusual to represent that if described ratio reaches minimum limit value described dedicated channel occurs;
Statistics detects described dedicated channel and unusual number of times occurs;
Calculate described dedicated channel and unusual ratio occurs;
Described ratio reaches described alarming threshold, then triggers alarming processing;
After having triggered alarming processing,, add up and calculate described dedicated channel once more and unusual ratio occurs every a period of time interval;
Described ratio drops to the recovery thresholding, then triggers the alarm disappearance and handles.
6. as claim 4 or 5 described wireless link detecting methods, it is characterized in that, further comprising the steps of:
The access at random and the switching of statistics common signal channel insert;
Insert if having at random, represent that then described common signal channel up-downlink direction is all normal;
Insert and not access at random if having only to switch, represent that then described common signal channel up direction is unusual and normal on the down direction;
If not only switch access but also do not insert at random, represent that then described common signal channel down direction is unusual.
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| CN1889409B (en) * | 2006-07-26 | 2010-08-18 | 华为技术有限公司 | Chain circuit state detecting method and system |
| CN101155035B (en) * | 2006-09-30 | 2010-11-10 | 华为技术有限公司 | Method and system for transmitting context status information of grouping stream |
| CN102143520B (en) * | 2011-01-27 | 2014-05-07 | 大唐移动通信设备有限公司 | Method and device for realizing silence call detection |
| CN106454926B (en) | 2012-05-04 | 2020-06-02 | 华为技术有限公司 | Method, device and system for determining link coverage problem |
| CN103152758A (en) * | 2012-11-16 | 2013-06-12 | 北京拓明科技有限公司 | Performance evaluation method of antenna feed system |
| CN114024903A (en) * | 2021-11-08 | 2022-02-08 | 深圳市共进电子股份有限公司 | Network switching method and device and gateway equipment |
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| WO1999053709A2 (en) * | 1998-04-08 | 1999-10-21 | Nokia Networks Oy | Procedure and system for utilisation of radio link measurement data |
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| US5706333A (en) * | 1995-02-24 | 1998-01-06 | Teradyne, Inc. | Method and apparatus for analyzing cellular telephone network |
| CN1209256A (en) * | 1995-12-15 | 1999-02-24 | 艾利森电话股份有限公司 | Supervisory audio tone-signalling tone (SAT-ST) handling |
| CN1304590A (en) * | 1998-04-03 | 2001-07-18 | 艾利森公司 | Method and apparatus for detecting S synchronization signal generated by satellite communication network |
| WO1999053709A2 (en) * | 1998-04-08 | 1999-10-21 | Nokia Networks Oy | Procedure and system for utilisation of radio link measurement data |
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