CN102891745B - The method of the network equipment and identification terminal exception thereof - Google Patents
The method of the network equipment and identification terminal exception thereof Download PDFInfo
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- CN102891745B CN102891745B CN201210400778.2A CN201210400778A CN102891745B CN 102891745 B CN102891745 B CN 102891745B CN 201210400778 A CN201210400778 A CN 201210400778A CN 102891745 B CN102891745 B CN 102891745B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
Abstract
The invention provides a kind of method of network equipment and identification terminal exception thereof.The method comprises acquisition transmission of radio links result, and described transmission of radio links result comprises: hybrid automatic repeat-request HARQ feedback result and/or cyclic redundancy check (CRC) check results; According to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: wireless link release before wireless chaining status be normal state and anomalous mode time radio link quality information; When the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identify terminal abnormal.The embodiment of the present invention in the identification of network side realization to terminal abnormal, and then can improve the accuracy of the network performance added up.
Description
Technical field
The present invention relates to wireless communication technology, particularly relate to a kind of method of network equipment and identification terminal exception thereof.
Background technology
Connected state subscriber equipment (User Equipment, UE), when radio signal quality difference, cannot correctly receive and feedback information between evolution base station (evolved NodeB, eNB) and UE, and eNB can think that wireless link is abnormal; On the other hand, when UE occurs abnormal, such as, when user pulls out card/lower electricity operation to the data card or wireless access fixed station that are in connected state, UE no longer responds network side, if now eNB sends downlink data to this UE, owing to not receiving the response of UE, eNB also thinks that wireless link is abnormal.
When wireless link abnormal accumulation to a certain extent time, eNB detects Radio Link Failure, discharges UE afterwards.In prior art, eNB cannot confirm wireless link be extremely cause due to wireless signal difference or cause because UE is abnormal, can cause can not Complete Characterization network performance according to the abnormal index calculated of wireless link.Such as, extremely discharging number of times/carrying always discharges number of times in cutting off rate=carrying, the abnormal release of carrying wherein number of times obtains according to the number of times statistics of the abnormal wireless link release caused of wireless link, contain the wireless link release because terminal abnormal causes, owing to containing terminal reason in the calculating parameter of cutting off rate, can not Complete Characterization network performance.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of method of network equipment and identification terminal exception thereof, to realize the identification of network side to terminal abnormal.
First aspect, provides a kind of method of network equipment identification terminal exception, comprising:
Obtain transmission of radio links result, described transmission of radio links result comprises: hybrid automatic repeat-request HARQ feedback result and/or cyclic redundancy check (CRC) check results;
According to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: wireless link release before wireless chaining status be normal state and anomalous mode time radio link quality information;
When the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identify terminal abnormal.
In conjunction with first aspect, in the first possible implementation of first aspect, described according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, comprising:
According to each HARQ feedback result and/or each CRC check result, determine the instantaneous state of wireless link, according to the instantaneous state determination wireless chaining status of described wireless link;
Respectively wireless chaining status be normal state and anomalous mode time radio link quality information is sampled, obtain described first radio link quality information and described second radio link quality information.
In conjunction with the first possible implementation of first aspect, in the implementation that the second of first aspect is possible, described radio link quality information to be sampled, comprising:
Employing cycle triggering mode sampling wireless link quality information; Or,
Adopt event triggered fashion sampling wireless link quality information.
In conjunction with the implementation that the second of first aspect is possible, in the third possible implementation of first aspect, described employing cycle triggering mode sampling wireless link quality information, comprising:
When wireless chaining status is normal state, adopt period 1 sampling wireless link quality information, when wireless chaining status is anomalous mode, adopt sampling wireless link quality information second round, the described period 1 is identical with described second round or different.
In conjunction with the implementation that the second of first aspect is possible, in the 4th kind of possible implementation of first aspect, described employing event triggered fashion sampling wireless link quality information, comprising:
When wireless chaining status is converted to anomalous mode by normal state, radio link quality information when sampling anomalous mode starts; Or,
When wireless chaining status is converted to normal state by anomalous mode, radio link quality information when sampling normal state starts.
In conjunction with the first possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, the described instantaneous state determination wireless chaining status according to described wireless link, comprising:
If when the instantaneous state of described wireless link is all anomalous mode when N continuous time, determine that described wireless chaining status is anomalous mode, or, if when the instantaneous state of described wireless link is all normal state when continuous N time, determine that described wireless chaining status is normal state;
After described wireless chaining status is anomalous mode, if when the instantaneous state of described wireless link is all normal state when continuous N time, then described wireless chaining status is converted to normal state by anomalous mode, if the instantaneous state of described wireless link does not have continuous N time to be all normal state, then described wireless chaining status keeps anomalous mode; Or,
After described wireless chaining status is normal state, if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, then described wireless chaining status is converted to anomalous mode by normal state, if the instantaneous state of described wireless link does not have N continuous time to be all anomalous mode, then described wireless chaining status keeps normal state;
Wherein, described M and described N is the numerical value pre-set.
In conjunction with first aspect, in the 6th kind of possible implementation of first aspect, described according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, comprising:
According to each HARQ feedback result and/or each CRC check result, described HARQ feedback result and/or CRC check result are divided into groups;
Often kind of HARQ feedback result in the often group of described grouping and/or CRC check result are added up, the radio link quality information often organized, the described radio link quality information often organized comprises described first radio quality information and described second radio quality information.
In conjunction with the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation of first aspect, the described radio link quality information often organized is the Block Error Rate often organized, the previous grouping being grouped into the grouping at described second radio link quality information place at described first radio link quality information place, when the described variable quantity when described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identify terminal abnormal, comprising:
When described second radio link quality information exceedes Second Threshold, and when described first radio link quality information is less than first threshold, identify terminal abnormal.
In conjunction with the first of first aspect to the 6th kind of any one possible implementation, in the 8th kind of possible implementation of first aspect, described radio link quality information comprises at least one item in following item:
Reference Signal Received Power RSRP, Reference Signal Received Quality RSRQ, received signal strength indicator RSSI, Signal to Interference plus Noise Ratio SINR, channel quality indicator (CQI), Timing Advance TA.
In conjunction with the first of first aspect to the 6th kind of any one possible implementation, in the 9th kind of possible implementation of first aspect, described first radio link quality information and described second radio link quality information are respectively:
Wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
Second aspect, provides a kind of network equipment, comprising:
Determination module, for obtaining transmission of radio links result, described transmission of radio links result comprises: hybrid automatic repeat-request HARQ feedback result and/or cyclic redundancy check (CRC) check results;
Acquisition module, for according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: wireless link release before wireless chaining status be normal state and anomalous mode time radio link quality information;
Identification module, for when the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identifies terminal abnormal.
In conjunction with second aspect, in the first possible implementation of second aspect, described acquisition module comprises:
Determining unit, for according to each HARQ feedback result and/or each CRC check result, determines the instantaneous state of wireless link, according to the instantaneous state determination wireless chaining status of described wireless link;
Sampling unit, for respectively wireless chaining status be normal state and anomalous mode time radio link quality information is sampled, obtain described first radio link quality information and described second radio link quality information.
In conjunction with the first possible implementation of second aspect, in the implementation that the second of second aspect is possible, described sampling unit specifically for:
Employing cycle triggering mode sampling wireless link quality information; Or,
Adopt event triggered fashion sampling wireless link quality information.
In conjunction with the implementation that the second of second aspect is possible, in the third possible implementation of second aspect, described sampling unit specifically for: when wireless chaining status is normal state, adopt period 1 sampling wireless link quality information, when wireless chaining status is anomalous mode, adopt sampling wireless link quality information second round, the described period 1 is identical with described second round or different.
In conjunction with the implementation that the second of second aspect is possible, in the 4th kind of possible implementation of second aspect, described sampling unit specifically for:
When wireless chaining status is converted to anomalous mode by normal state, radio link quality information when sampling anomalous mode starts; Or,
When wireless chaining status is converted to normal state by anomalous mode, radio link quality information when sampling normal state starts.
In conjunction with the first possible implementation of second aspect, in the 5th kind of possible implementation of second aspect, described determining unit specifically for:
According to each HARQ feedback result and/or each CRC check result, determine the instantaneous state of wireless link;
If when the instantaneous state of described wireless link is all anomalous mode when N continuous time, determine that described wireless chaining status is anomalous mode, or, if when the instantaneous state of described wireless link is all normal state when continuous N time, determine that described wireless chaining status is normal state;
After described wireless chaining status is anomalous mode, if when the instantaneous state of described wireless link is all normal state when continuous N time, then described wireless chaining status is converted to normal state by anomalous mode, if the instantaneous state of described wireless link does not have continuous N time to be all normal state, then described wireless chaining status keeps anomalous mode; Or,
After described wireless chaining status is normal state, if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, then described wireless chaining status is converted to anomalous mode by normal state, if the instantaneous state of described wireless link does not have N continuous time to be all anomalous mode, then described wireless chaining status keeps normal state;
Wherein, described M and described N is the numerical value pre-set.
In conjunction with second aspect, in the 6th kind of possible implementation of second aspect, described acquisition module comprises:
Grouped element, for according to each HARQ feedback result and/or each CRC check result, divides into groups to described HARQ feedback result and/or CRC check result;
Statistic unit, for adding up often kind of HARQ feedback result in the often group of described grouping and/or CRC check result, the radio link quality information often organized, the described radio link quality information often organized comprises described first radio quality information and described second radio quality information.
In conjunction with the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation of second aspect, the described radio link quality information often organized is the Block Error Rate often organized, the previous grouping being grouped into the grouping at described second radio link quality information place at described first radio link quality information place, described identification module specifically for:
When described second radio link quality information exceedes Second Threshold, and when described first radio link quality information is less than first threshold, identify terminal abnormal.
In conjunction with the first of second aspect to the 6th kind of any one possible implementation, in the 8th kind of possible implementation of second aspect, described radio link quality information comprises at least one item in following item:
Reference Signal Received Power RSRP, Reference Signal Received Quality RSRQ, received signal strength indicator RSSI, Signal to Interference plus Noise Ratio SINR, channel quality indicator (CQI), Timing Advance TA.
In conjunction with the first of second aspect to the 6th kind of any one possible implementation, in the 9th kind of possible implementation of second aspect, described first radio link quality information and described second radio link quality information are respectively:
Wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
As shown from the above technical solution, by obtaining transmission of radio links result, the first radio link quality information and the second radio link quality information is obtained according to transmission of radio links result, the identification of terminal abnormal is carried out according to the first radio link quality information and the second radio link quality information, the identification of network side to terminal abnormal can be realized, and then can accurate statistics network performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of method one embodiment of network equipment identification terminal exception of the present invention;
Fig. 2 is the schematic flow sheet of another embodiment of method of network equipment identification terminal exception of the present invention;
Fig. 3 is the schematic diagram of sampling wireless link quality information in the embodiment of the present invention;
Fig. 4 is variations one schematic diagram in the embodiment of the present invention;
Fig. 5 is another schematic diagram of variations in the embodiment of the present invention;
Fig. 6 is the schematic flow sheet of another embodiment of method of network equipment identification terminal exception of the present invention;
Fig. 7 is the schematic flow sheet of another embodiment of method of network equipment identification terminal exception of the present invention;
Fig. 8 is to the schematic diagram that statistics is divided into groups in the embodiment of the present invention;
Fig. 9 is Block Error Rate change schematic diagram in the embodiment of the present invention;
Figure 10 is the network equipment one example structure schematic diagram of the present invention;
Figure 11 is the structural representation of another embodiment of the network equipment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the schematic flow sheet of method one embodiment of network equipment identification terminal exception of the present invention, comprising:
Step 11:eNB obtains transmission of radio links result, described transmission of radio links result comprises: hybrid automatic repeat-request (Hybrid Automatic Repeat Request, HARQ) feedback result and/or cyclic redundancy check (CRC) (Cyclic Redundancy Check, CRC) check results;
Step 12:eNB is according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: wireless link release before wireless chaining status be normal state and anomalous mode time radio link quality information;
Optionally, described according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, comprising:
According to each HARQ feedback result and/or each CRC check result, determine the instantaneous state of wireless link, according to the instantaneous state determination wireless chaining status of described wireless link;
Respectively wireless chaining status be normal state and anomalous mode time radio link quality information is sampled, obtain described first radio link quality information and described second radio link quality information.
Or, optionally, described according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, comprising:
According to each HARQ feedback result and/or each CRC check result, described HARQ feedback result and/or CRC check result are divided into groups;
Often kind of HARQ feedback result in the often group of described grouping and/or CRC check result are added up, the radio link quality information often organized, the described radio link quality information often organized comprises described first radio quality information and described second radio quality information.
Step 13:eNB, when the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identifies terminal abnormal.
Wherein, above-mentioned radio link quality information, specifically as the first radio link quality information and the second radio link quality information can comprise: Reference Signal Received Power (Reference Signal ReceivedPower, RSRP), Reference Signal Received Quality (Reference Signal Received Quality, RSRQ), received signal strength indicator (Received Signal Strength Indicator, RSSI), Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR), channel quality instruction (ChannelQuality Indicator, CQI), Timing Advance (Timing Advance, or Block Error Rate TA).
The present embodiment, by radio link quality information, can realize the identification of network side to terminal abnormal, and then accurately can determine network performance.
Fig. 2 is the schematic flow sheet of another embodiment of method of network equipment identification terminal exception of the present invention, and the present embodiment obtains radio link quality information for sampling, and the present embodiment comprises:
Step 21:eNB obtains HARQ feedback result and CRC check result;
Wherein, HARQ feedback result refers to the HARQ feedback result of downlink data, after eNB sends downlink data to UE, if the correct downlink data receiving of UE, then to eNB feeding back ACK information, if UE does not have correct downlink data receiving, then feeds back nack message to eNB.
Above-mentioned HARQ feedback result comprises: receive feedback information and do not receive feedback information, receive feedback information and comprise ACK information or nack message, suppose that ACK information A represents, nack message N represents, do not receive feedback information V to represent, then HARQ feedback result comprises: A, N or V.
CRC check result refers to the CRC check result of eNB to the upstream data that UE sends, and comprises the correct or CRC check mistake of CRC check.
Step 22:eNB, according to HARQ feedback result and CRC check result, determines wireless chaining status.
Wherein, according to HARQ feedback information and CRC check result, the instantaneous state (referred to as instantaneous state) of wireless link can be determined, then according to instantaneous state determination wireless chaining status.
Such as, when HARQ feedback result is non-ACK information, instantaneous state is anomalous mode, and when HARQ feedback result is ACK information, instantaneous state is normal state.Or when CRC check result is check results mistake, instantaneous state is anomalous mode, when CRC check result is for verifying correct, instantaneous state is normal state.
Optionally, the described instantaneous state determination wireless chaining status according to described wireless link, comprising:
If when the instantaneous state of described wireless link is all anomalous mode when N continuous time, determine that described wireless chaining status is anomalous mode, or, if when the instantaneous state of described wireless link is all normal state when continuous N time, determine that described wireless chaining status is normal state;
After described wireless chaining status is anomalous mode, if when the instantaneous state of described wireless link is all normal state when continuous N time, then described wireless chaining status is converted to normal state by anomalous mode, if the instantaneous state of described wireless link does not have continuous N time to be all normal state, then described wireless chaining status keeps anomalous mode; Or,
After described wireless chaining status is normal state, if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, then described wireless chaining status is converted to anomalous mode by normal state, if the instantaneous state of described wireless link does not have N continuous time to be all anomalous mode, then described wireless chaining status keeps normal state;
Wherein, described M and described N is the numerical value pre-set.
Such as, numerical value of N and M can be set, if instantaneous state is all anomalous mode when N continuous time, then can determine that wireless link is anomalous mode;
After wireless link is anomalous mode, if instantaneous state is all normal state when continuous N time, then wireless link is converted to normal state by anomalous mode, otherwise wireless link keeps anomalous mode;
After wireless link is normal state, if instantaneous state is all anomalous mode when N continuous time, then wireless link is converted to anomalous mode by normal state, otherwise wireless link keeps normal state.
Above-mentioned instantaneous state is normal state or anomalous mode is determine according to any one in HARQ feedback result and CRC check result, such as, when HARQ feedback result is ACK information, then instantaneous state is normal state, afterwards when HARQ feedback result is non-ACK information, then instantaneous state becomes anomalous mode, or, when CRC effect result is mistake, instantaneous state also becomes anomalous mode.
Step 23:eNB obtains radio link quality information;
In the present embodiment, radio link quality information comprises at least one item in following item: RSRP, RSRQ, RSSI, SINR, CQI, TA.
Wherein, radio link quality information can be obtained by sampling, and such as, the cycle triggers sampling or event triggered fashion sampling.
For cycle triggering mode: arrange the sampling period, obtain the radio link quality information in corresponding moment according to this sampling period.Such as, the sampling period that wireless link is arranged when being normal state is T1, the employing cycle that wireless link is arranged when being anomalous mode is T2, so see Fig. 3, when wireless link is normal state, each T1 time, radio link quality information that sampling should be carried out, when wireless link is anomalous mode, each T2 time, radio link quality information that sampling should be carried out.
For event triggered fashion: after wireless chaining status changes, the radio link quality information of instance sample after conversion.Such as, see Fig. 3, after wireless chaining status is converted to anomalous mode by normal state, converting instance sample radio link quality information of anomalous mode to.
The situation of change of radio link quality information when step 24:eNB is transformed into anomalous mode according to the last wireless link before wireless link release by normal state, judges SOT state of termination.
Wherein, can arrange a threshold value, the change difference of the radio link quality information in during this period of time exceedes this threshold value, then show that channel quality is sudden change, and judge that terminal occurs abnormal, wireless link release occurs abnormal causing by terminal; Otherwise the change difference of the radio link quality information in during this period of time does not exceed this threshold value, then show that channel quality is not good before wireless link release, wireless link release is caused by network performance difference.That is, when the variable quantity of the first radio link quality information and the second radio link quality information exceedes the threshold value of setting, identify terminal abnormal, wherein, the first radio link quality information and the second radio link quality information be respectively wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
Such as, see Fig. 4, the variable quantity of the radio link quality information of sampling when the last wireless link before wireless link release is transformed into anomalous mode by normal state exceedes threshold value, then show that channel quality is sudden change, therefore can determine that terminal occurs abnormal.
And see Fig. 5, the variable quantity of the radio link quality information of sampling when the last wireless link before wireless link release is transformed into anomalous mode by normal state does not exceed threshold value, but above-mentioned during this period of time before, channel quality is not good, therefore can determine the non-exception of terminal.
The present embodiment obtains the quality information of wireless link by sampling, can realize the identification to terminal abnormal based on this quality information.And periodic mode or event triggered fashion can be adopted when extracting the quality information of wireless link, achieve diversity.
Fig. 6 is the schematic flow sheet of another embodiment of method of network equipment identification terminal exception of the present invention, and only determine according to HARQ feedback result when determining wireless chaining status unlike, the present embodiment with a upper embodiment, the present embodiment comprises:
Step 61:eNB obtains HARQ feedback result.
A similar upper embodiment, HARQ feedback result comprises: A, N, V.
Step 62:eNB, according to HARQ feedback result, determines wireless chaining status.
Such as, when HARQ feedback result is non-ACK information, instantaneous state is anomalous mode, and when HARQ feedback result is ACK information, instantaneous state is normal state.
Numerical value of N and M can be set, if instantaneous state is all anomalous mode when N continuous time, then can determine that wireless link is anomalous mode;
After wireless link is anomalous mode, if instantaneous state is all normal state when continuous N time, then wireless link is converted to normal state by anomalous mode, otherwise wireless link keeps anomalous mode;
After wireless link is normal state, if instantaneous state is all anomalous mode when N continuous time, then wireless link is converted to anomalous mode by normal state, otherwise wireless link keeps normal state.
Step 63:eNB obtains radio link quality information.
Specifically can see step 23, sampling period sampling or event triggered fashion obtain radio link quality information.
The situation of change of radio link quality information when step 64:eNB is transformed into anomalous mode according to the last wireless link before wireless link release by normal state, judges SOT state of termination.
Particular content can see step 24.Such as, can arrange a threshold value, the change difference of the radio link quality information in during this period of time exceedes this threshold value, then show that channel quality is sudden change, and judge that terminal occurs abnormal, wireless link release occurs abnormal causing by terminal; Otherwise the change difference of the radio link quality information in during this period of time does not exceed this threshold value, then show that channel quality is not good before wireless link release, wireless link release is caused by network performance difference.
The present embodiment is for only according to HARQ feedback result determination wireless chaining status, optionally, also can only according to CRC check result determination wireless chaining status, such as, first whether correctly instantaneous state is determined according to CRC check result, again according to the instantaneous state determination wireless chaining status of continuous print setting number, as indicated at step 22.
The present embodiment obtains the quality information of wireless link by sampling, can realize the identification to terminal abnormal based on this quality information.And periodic mode or event triggered fashion can be adopted when extracting the quality information of wireless link, achieve diversity.
Fig. 7 is the schematic flow sheet of another embodiment of method of network equipment identification terminal exception of the present invention,
The present embodiment obtains radio link quality information for statistics, and the present embodiment comprises:
Step 71:eNB adds up the HARQ feedback result of downlink data, according to the number of times of the various HARQ feedback results of statistics, divides into groups to HARQ feedback result.
Such as, add up the number of times of the number of times of ACK information (A), nack message (N) respectively, and do not receive the number of times of HARQ feedback information (V).
Such as, occur not receiving HARQ feedback information (V) for X time continuously after receiving HARQ feedback information (A or N), preserve statistics, not receive HARQ feedback information for starting point, set up another one group and restart statistics A, N, V number, as shown in Figure 8 i-th group and the i-th+1 group;
After not receiving HARQ feedback information, receive a continuous Y feedback information, preserve statistics, and set up another one group restart to add up after ACK, NACK number and do not receive the number of times of HARQ feedback information, as the i-th+1 group and i-th+2 group of Fig. 8.
The value of X, Y can consider PDCCH false dismissal probability, HARQ feedback probability of false detection etc., X, Y be all be more than or equal to 1 number.
Above-mentioned each grouping can be understood as a kind of wireless chaining status, such as, for above-mentioned i-th group, the A received due to it is more, normal state can be interpreted as by i-th group, and the i-th+1 group and the i-th+2 group V more, the i-th+1 group and the i-th+2 group can be interpreted as anomalous mode.Concrete normal state or anomalous mode can be determined according to the ratio of A/ (A+N+V), can be understood as normal state, otherwise be anomalous mode when this ratio is greater than setting threshold.
Step 72: the data of last M grouping before choosing wireless link release, calculate the Block Error Rate of each grouping.
Block Error Rate=(number of times of the number of times of nack message+do not receive HARQ feedback information)/(number of times of the number of times of the number of times+nack message of ACK information+do not receive HARQ feedback information)=(number of times of the number of times+V of N)/(number of times of the number of times+V of the number of times+N of A)
Step 73:eNB, according to the situation of change of Block Error Rate, judges SOT state of termination.
During terminal abnormal, Block Error Rate has an instantaneous feature skyrocketed, if therefore the front Block Error Rate of release worsens suddenly, is judged as terminal abnormal.That is, when the variable quantity of the radio link quality information when the last time described wireless chaining status before described wireless link release is converted to anomalous mode by normal state exceedes the threshold value of setting, terminal abnormal is identified.That is, when the second radio link quality information exceedes Second Threshold, and the first radio link quality information is when being less than first threshold, identify terminal abnormal, wherein, the radio link quality information often organized is the Block Error Rate often organized, the previous grouping being grouped into the grouping at described second radio link quality information place at described first radio link quality information place.
Such as, when the Block Error Rate of i-th group (1≤i≤M-1) is lower than first threshold, the i-th+1 group Block Error Rate higher than Second Threshold, and the i-th+1 group to total Block Error Rate of M group higher than Second Threshold, before release is described, worsening suddenly appears in Block Error Rate, is judged as terminal abnormal.
Wherein, 0%< first threshold < Second Threshold <100%.
The value of first threshold can with reference to the Block Error Rate met required for wireless link normal data transfer, such as, and Initial Block Error Rate (Initial Block Error Ratio, IBLER) desired value; The value of Second Threshold can be: 1-terminal does not feed back HARQ feedback information and eNB flase drop goes out the probability of HARQ feedback information.
Such as, see Fig. 9, can determine that terminal occurs abnormal.
The present embodiment, for according to HARQ feedback result statistics of error rate, also according to CRC check result statistics of error rate, such as, can divide into groups to CRC check result according to whether CRC check result is correct, then adds up the Block Error Rate of each grouping.In addition, the present embodiment is for statistics of error rate, also other radio link quality information can be added up, such as RSRP, RSRQ, RSSI, SINR, CQI, TA, similar, also can be when the variable quantity of the first radio link quality information and the second radio link quality information exceedes the threshold value of setting, identify terminal abnormal, wherein, described first radio link quality information and described second radio link quality information are respectively: wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
The present embodiment utilizes statistical to obtain Block Error Rate, and then identification terminal is abnormal, realizes the identification to terminal abnormal.
The above embodiment of the present invention may be used for the abnormal judgement of network side real time terminal, also may be used for reprocessing instrument and realizes terminal abnormal judgement.
Figure 10 is the network equipment one example structure schematic diagram of the present invention, and this equipment can be arranged in eNB, and this equipment is the equipment performing said method, and this equipment comprises determination module 101, acquisition module 102 and identification module 103; Determination module 101 is for obtaining transmission of radio links result, and described transmission of radio links result comprises: hybrid automatic repeat-request HARQ feedback result and/or cyclic redundancy check (CRC) check results; Acquisition module 102 is for according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: wireless link release before wireless chaining status be normal state and anomalous mode time radio link quality information; Identification module 103, for when the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identifies terminal abnormal.
Optionally, described acquisition module comprises:
Determining unit, for according to each HARQ feedback result and/or each CRC check result, determines the instantaneous state of wireless link, according to the instantaneous state determination wireless chaining status of described wireless link;
Sampling unit, for respectively wireless chaining status be normal state and anomalous mode time radio link quality information is sampled, obtain described first radio link quality information and described second radio link quality information.
Optionally, described sampling unit specifically for:
Employing cycle triggering mode sampling wireless link quality information; Or,
Adopt event triggered fashion sampling wireless link quality information.
Optionally, described sampling unit specifically for:
When wireless chaining status is normal state, adopt period 1 sampling wireless link quality information, when wireless chaining status is anomalous mode, adopt sampling wireless link quality information second round, the described period 1 is identical with described second round or different.
Optionally, described sampling unit specifically for:
When wireless chaining status is converted to anomalous mode by normal state, radio link quality information when sampling anomalous mode starts; Or,
When wireless chaining status is converted to normal state by anomalous mode, radio link quality information when sampling normal state starts.
Optionally, described determining unit specifically for:
According to each HARQ feedback result and/or each CRC check result, determine the instantaneous state of wireless link;
If when the instantaneous state of described wireless link is all anomalous mode when N continuous time, determine that described wireless chaining status is anomalous mode, or, if when the instantaneous state of described wireless link is all normal state when continuous N time, determine that described wireless chaining status is normal state;
After described wireless chaining status is anomalous mode, if when the instantaneous state of described wireless link is all normal state when continuous N time, then described wireless chaining status is converted to normal state by anomalous mode, if the instantaneous state of described wireless link does not have continuous N time to be all normal state, then described wireless chaining status keeps anomalous mode; Or,
After described wireless chaining status is normal state, if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, then described wireless chaining status is converted to anomalous mode by normal state, if the instantaneous state of described wireless link does not have N continuous time to be all anomalous mode, then described wireless chaining status keeps normal state;
Wherein, described M and described N is the numerical value pre-set.
Optionally, described acquisition module comprises:
Grouped element, for according to each HARQ feedback result and/or each CRC check result, divides into groups to described HARQ feedback result and/or CRC check result;
Statistic unit, for adding up often kind of HARQ feedback result in the often group of described grouping and/or CRC check result, the radio link quality information often organized, the described radio link quality information often organized comprises described first radio quality information and described second radio quality information.
Optionally, the described radio link quality information often organized is the Block Error Rate often organized, the previous grouping being grouped into the grouping at described second radio link quality information place at described first radio link quality information place, described identification module specifically for:
When described second radio link quality information exceedes Second Threshold, and when described first radio link quality information is less than first threshold, identify terminal abnormal.
Optionally, described radio link quality information comprises at least one item in following item:
Reference Signal Received Power RSRP, Reference Signal Received Quality RSRQ, received signal strength indicator RSSI, Signal to Interference plus Noise Ratio SINR, channel quality indicator (CQI), Timing Advance TA.
Optionally, described first radio link quality information and described second radio link quality information are respectively:
Wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
The present embodiment, by radio link quality information, can realize the identification of network side to terminal abnormal, and then accurately can determine network performance.
Figure 11 is the structural representation of another embodiment of the network equipment of the present invention, and this equipment can be base station, and as eNB, this equipment comprises processor 111 and memory 112; Processor 111 is for obtaining transmission of radio links result, and described transmission of radio links result comprises: hybrid automatic repeat-request HARQ feedback result and/or cyclic redundancy check (CRC) check results; According to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: wireless link release before wireless chaining status be normal state and anomalous mode time radio link quality information; Memory 112 is for storing described first radio link quality information and described second radio link quality information; Processor 111 also for when the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identifies terminal abnormal.
Optionally, processor can be specifically for: according to each HARQ feedback result and/or each CRC check result, determine the instantaneous state of wireless link, according to the instantaneous state determination wireless chaining status of described wireless link.
Optionally, this equipment can also comprise: sampler, for respectively wireless chaining status be normal state and anomalous mode time radio link quality information is sampled, obtain described first radio link quality information and described second radio link quality information.
Optionally, sampler is specifically for adopting cycle triggering mode sampling wireless link quality information; Or, adopt event triggered fashion sampling wireless link quality information.
Optionally, sampler specifically for: when wireless chaining status is normal state, adopt period 1 sampling wireless link quality information, when wireless chaining status is anomalous mode, adopt sampling wireless link quality information second round, the described period 1 is identical with described second round or different.
Optionally, sampler specifically for: when wireless chaining status is converted to anomalous mode by normal state, the radio link quality information of sampling anomalous mode when starting; Or,
When wireless chaining status is converted to normal state by anomalous mode, radio link quality information when sampling normal state starts.
Optionally, processor specifically for: if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, determine that described wireless chaining status is anomalous mode, or, if when the instantaneous state of described wireless link is all normal state when continuous N time, determine that described wireless chaining status is normal state; After described wireless chaining status is anomalous mode, if when the instantaneous state of described wireless link is all normal state when continuous N time, then described wireless chaining status is converted to normal state by anomalous mode, if the instantaneous state of described wireless link does not have continuous N time to be all normal state, then described wireless chaining status keeps anomalous mode; Or, after described wireless chaining status is normal state, if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, then described wireless chaining status is converted to anomalous mode by normal state, if the instantaneous state of described wireless link does not have N continuous time to be all anomalous mode, then described wireless chaining status keeps normal state; Wherein, described M and described N is the numerical value pre-set.
Optionally, processor specifically for: according to each HARQ feedback result and/or each CRC check result, described HARQ feedback result and/or CRC check result are divided into groups; Often kind of HARQ feedback result in the often group of described grouping and/or CRC check result are added up, the radio link quality information often organized, the described radio link quality information often organized comprises described first radio quality information and described second radio quality information.
Optionally, the described radio link quality information often organized is the Block Error Rate often organized, the previous grouping being grouped into the grouping at described second radio link quality information place at described first radio link quality information place, processor specifically for: when described second radio link quality information exceedes Second Threshold, and described first radio link quality information is when being less than first threshold, identify terminal abnormal.
Optionally, the described radio link quality information of sampler samples or processor are added up the radio link quality information obtained and can also be comprised at least one item in following item:
RSRP、RSRQ、RSSI、SINR、CQI、TA。
Optionally, described first radio link quality information and described second radio link quality information are respectively: wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
The present embodiment, by radio link quality information, can realize the identification of network side to terminal abnormal, and then accurately can determine network performance.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (20)
1. a method for network equipment identification terminal exception, is characterized in that, comprising:
Obtain transmission of radio links result, described transmission of radio links result comprises: hybrid automatic repeat-request HARQ feedback result and/or cyclic redundancy check (CRC) check results;
According to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: wireless link release before the last wireless chaining status be normal state and anomalous mode time radio link quality information;
When the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identify terminal abnormal.
2. method according to claim 1, is characterized in that, described according to described transmission of radio links result, obtains the first radio link quality information and the second radio link quality information, comprising:
According to each HARQ feedback result and/or each CRC check result, determine the instantaneous state of wireless link, according to the instantaneous state determination wireless chaining status of described wireless link;
Respectively wireless chaining status be normal state and anomalous mode time radio link quality information is sampled, obtain described first radio link quality information and described second radio link quality information.
3. method according to claim 2, is characterized in that, describedly samples to radio link quality information, comprising:
Employing cycle triggering mode sampling wireless link quality information; Or,
Adopt event triggered fashion sampling wireless link quality information.
4. method according to claim 3, is characterized in that, described employing cycle triggering mode sampling wireless link quality information, comprising:
When wireless chaining status is normal state, adopt period 1 sampling wireless link quality information, when wireless chaining status is anomalous mode, adopt sampling wireless link quality information second round, the described period 1 is identical with described second round or different.
5. method according to claim 3, is characterized in that, described employing event triggered fashion sampling wireless link quality information, comprising:
When wireless chaining status is converted to anomalous mode by normal state, radio link quality information when sampling anomalous mode starts; Or,
When wireless chaining status is converted to normal state by anomalous mode, radio link quality information when sampling normal state starts.
6. method according to claim 2, is characterized in that, the described instantaneous state determination wireless chaining status according to described wireless link, comprising:
If when the instantaneous state of described wireless link is all anomalous mode when N continuous time, determine that described wireless chaining status is anomalous mode, or, if when the instantaneous state of described wireless link is all normal state when continuous N time, determine that described wireless chaining status is normal state;
After described wireless chaining status is anomalous mode, if when the instantaneous state of described wireless link is all normal state when continuous N time, then described wireless chaining status is converted to normal state by anomalous mode, if the instantaneous state of described wireless link does not have continuous N time to be all normal state, then described wireless chaining status keeps anomalous mode; Or,
After described wireless chaining status is normal state, if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, then described wireless chaining status is converted to anomalous mode by normal state, if the instantaneous state of described wireless link does not have N continuous time to be all anomalous mode, then described wireless chaining status keeps normal state;
Wherein, described M and described N is the numerical value pre-set.
7. method according to claim 1, is characterized in that, described according to described transmission of radio links result, obtains the first radio link quality information and the second radio link quality information, comprising:
According to each HARQ feedback result and/or each CRC check result, described HARQ feedback result and/or CRC check result are divided into groups;
Often kind of HARQ feedback result in the often group of described grouping and/or CRC check result are added up, the radio link quality information often organized, the described radio link quality information often organized comprises described first radio quality information and described second radio quality information.
8. method according to claim 7, it is characterized in that, the described radio link quality information often organized is the Block Error Rate often organized, the previous grouping being grouped into the grouping at described second radio link quality information place at described first radio link quality information place, when the described variable quantity when described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identify terminal abnormal, comprising:
When described second radio link quality information exceedes Second Threshold, and when described first radio link quality information is less than first threshold, identify terminal abnormal.
9. the method according to any one of claim 2-7, is characterized in that, described radio link quality information comprises at least one item in following item:
Reference Signal Received Power RSRP, Reference Signal Received Quality RSRQ, received signal strength indicator RSSI, Signal to Interference plus Noise Ratio SINR, channel quality indicator (CQI), Timing Advance TA.
10. the method according to any one of claim 2-7, is characterized in that, described first radio link quality information and described second radio link quality information are respectively:
Wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
11. 1 kinds of network equipments, is characterized in that, comprising:
Determination module, for obtaining transmission of radio links result, described transmission of radio links result comprises: hybrid automatic repeat-request HARQ feedback result and/or cyclic redundancy check (CRC) check results;
Acquisition module, for according to described transmission of radio links result, obtain the first radio link quality information and the second radio link quality information, described first radio link quality information and described second radio link quality information are respectively: before wireless link release the last wireless chaining status be normal state and anomalous mode time radio link quality information;
Identification module, for when the variable quantity of described first radio link quality information and described second radio link quality information exceedes the threshold value of setting, identifies terminal abnormal.
12. equipment according to claim 11, is characterized in that, described acquisition module comprises:
Determining unit, for according to each HARQ feedback result and/or each CRC check result, determines the instantaneous state of wireless link, according to the instantaneous state determination wireless chaining status of described wireless link;
Sampling unit, for respectively wireless chaining status be normal state and anomalous mode time radio link quality information is sampled, obtain described first radio link quality information and described second radio link quality information.
13. equipment according to claim 12, is characterized in that, described sampling unit specifically for:
Employing cycle triggering mode sampling wireless link quality information; Or,
Adopt event triggered fashion sampling wireless link quality information.
14. equipment according to claim 13, it is characterized in that, described sampling unit specifically for: when wireless chaining status is normal state, adopt period 1 sampling wireless link quality information, when wireless chaining status is anomalous mode, adopt sampling wireless link quality information second round, the described period 1 is identical with described second round or different.
15. equipment according to claim 13, is characterized in that, described sampling unit specifically for:
When wireless chaining status is converted to anomalous mode by normal state, radio link quality information when sampling anomalous mode starts; Or,
When wireless chaining status is converted to normal state by anomalous mode, radio link quality information when sampling normal state starts.
16. equipment according to claim 12, is characterized in that, described determining unit specifically for:
According to each HARQ feedback result and/or each CRC check result, determine the instantaneous state of wireless link;
If when the instantaneous state of described wireless link is all anomalous mode when N continuous time, determine that described wireless chaining status is anomalous mode, or, if when the instantaneous state of described wireless link is all normal state when continuous N time, determine that described wireless chaining status is normal state;
After described wireless chaining status is anomalous mode, if when the instantaneous state of described wireless link is all normal state when continuous N time, then described wireless chaining status is converted to normal state by anomalous mode, if the instantaneous state of described wireless link does not have continuous N time to be all normal state, then described wireless chaining status keeps anomalous mode; Or,
After described wireless chaining status is normal state, if when the instantaneous state of described wireless link is all anomalous mode when N continuous time, then described wireless chaining status is converted to anomalous mode by normal state, if the instantaneous state of described wireless link does not have N continuous time to be all anomalous mode, then described wireless chaining status keeps normal state;
Wherein, described M and described N is the numerical value pre-set.
17. equipment according to claim 11, is characterized in that, described acquisition module comprises:
Grouped element, for according to each HARQ feedback result and/or each CRC check result, divides into groups to described HARQ feedback result and/or CRC check result;
Statistic unit, for adding up often kind of HARQ feedback result in the often group of described grouping and/or CRC check result, the radio link quality information often organized, the described radio link quality information often organized comprises described first radio quality information and described second radio quality information.
18. equipment according to claim 17, it is characterized in that, the described radio link quality information often organized is the Block Error Rate often organized, the previous grouping being grouped into the grouping at described second radio link quality information place at described first radio link quality information place, described identification module specifically for:
When described second radio link quality information exceedes Second Threshold, and when described first radio link quality information is less than first threshold, identify terminal abnormal.
19. equipment according to any one of claim 12-17, it is characterized in that, described radio link quality information comprises at least one item in following item:
Reference Signal Received Power RSRP, Reference Signal Received Quality RSRQ, received signal strength indicator RSSI, Signal to Interference plus Noise Ratio SINR, channel quality indicator (CQI), Timing Advance TA.
20. equipment according to any one of claim 12-17, it is characterized in that, described first radio link quality information and described second radio link quality information are respectively:
Wireless link release before the last time described wireless chaining status be normal state and anomalous mode time radio link quality information.
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| CN106304173B (en) * | 2015-05-25 | 2020-01-24 | 上海诺基亚贝尔股份有限公司 | Method for measuring radio link quality in D2D user equipment |
| CN105050078A (en) * | 2015-07-13 | 2015-11-11 | 广州番禺职业技术学院 | Enhanced physical layer safety communication system and method |
| US9848384B2 (en) * | 2016-02-11 | 2017-12-19 | Imagination Technologies | Receiver deactivation based on dynamic measurements |
| CN109495301B (en) * | 2018-11-14 | 2021-08-24 | 中电鸿信信息科技有限公司 | IPTV abnormal network equipment delimitation method based on ARQ log |
| CN113826425B (en) * | 2019-05-29 | 2023-07-18 | 华为技术有限公司 | Link detection method, device and related equipment |
| CN110572840B (en) * | 2019-09-10 | 2022-11-11 | 深圳市万普拉斯科技有限公司 | Mobile network state identification method and mobile terminal |
| CN111130739B (en) * | 2019-12-19 | 2022-07-08 | 中科南京移动通信与计算创新研究院 | Method, device, terminal and storage medium for processing air interface resources |
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| CN101583150A (en) * | 2009-06-18 | 2009-11-18 | 中兴通讯股份有限公司 | Method and device for detecting abnormity of wireless terminal through wireless access point |
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