CN101772048A - Method and device for detecting failure of wireless link - Google Patents
Method and device for detecting failure of wireless link Download PDFInfo
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- CN101772048A CN101772048A CN200910001745A CN200910001745A CN101772048A CN 101772048 A CN101772048 A CN 101772048A CN 200910001745 A CN200910001745 A CN 200910001745A CN 200910001745 A CN200910001745 A CN 200910001745A CN 101772048 A CN101772048 A CN 101772048A
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Abstract
The invention discloses a method and a device for detecting failure of a wireless link, relates to the technical field of communication, and solves the problem of large time difference between continuously-received desynchronizing instructions used by starting a timer in a DRX mode and a non-DRX mode in the prior art. In the embodiment of the invention, the rated number of desynchronizing instructions is determined again in the DRX mode so as to change the number of continuously-received desynchronizing instructions required by starting the timer; or a surplus detection time is preset, and the time between the continuously-received desynchronizing instructions required by for starting the timer is limited within the surplus detection time.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the detection method and the device of Radio Link Failure.
Background technology
At present, LTE (Long Term Evolved, Long Term Evolution) in the system, user terminal can be realized the detection of Radio Link Failure by the following method: when the signal quality that detects Serving cell when the physical layer of user terminal is lower than certain parameter, the physical layer of user terminal is issued step-out indication of high level (layer 2 or layer 3), after if high level is received the continuous step-out indication of certain number (adopting parameter N 310 these numbers of expression in the LTE system), then start timer (can be described as the T310 timer), if timer expiry then is considered as Radio Link Failure.
For (discontinuous reception) pattern of DRX in the LTE system and non-DRX pattern, the physical layer of user terminal reports the concrete condition of step-out indication as follows:
The first, under non-DRX pattern, the signal quality of the cycle of the every frame of physical layer of user terminal (general 10ms of the cycle of a frame) to (200ms is the physical layer evaluation time under the non-DRX pattern) in the 200ms before the Serving cell carries out one-time detection, if the signal quality of the interior Serving cell of 200ms is lower than certain parameter Qout before detecting, then the physical layer of user terminal reports a step-out indication (out-of-sync) to high level; If the signal quality of the interior Serving cell of 200ms is higher than certain parameter Qin before detecting, then the physical layer of user terminal reports a subsynchronous indication (in-sync) to high level; If the signal quality of the interior Serving cell of 200ms is between parameter Qin and the Qout before detecting, then the physical layer of user terminal does not report any information to high level.
The second, in order to save the terminal power consumption, under the DRX pattern, there is not regulation to detect the signal quality of Serving cell every 10ms, only regulation signal quality to Serving cell to I haven't seen you for ages each DRX cycle detects, and is the signal quality that detects the interior Serving cell of preceding 5 DRX cycles (5 DRX cycles are the physical layer evaluation time under the DRX pattern).And in only between the DRX active period, the signal quality that the user terminal physical layer detects preceding 5 DRX cycle Serving cells is lower than certain parameter Qout, then reports the step-out indication to high level; The signal quality that detects preceding 5 DRX cycle Serving cells is higher than certain parameter Qin (generally speaking, Qin is greater than Qout), then reports synchronous indication to high level; And the signal quality of Serving cell is between parameter Qin and the Qout, and then the physical layer of user terminal does not report any information to high level.
In the above-mentioned process that reports the step-out indication or indicate synchronously, the inventor finds that there are the following problems at least in the prior art: owing to only need to carry out in each DRX cycle one-time detection under the DRX pattern, but DRX cycle all can be longer, for example: when DRX cycle is 1s, could report out-of-sync or in-sync to high level behind the signal quality of 5s before physical layer need detect.Under the identical situation of parameter N 310, the duration that starts the T310 timer under the non-DRX pattern and need to send continuously the step-out indication is N310*10ms; And the duration that startup T310 timer needs continuously the transmission step-out to indicate under the DRX pattern is N310*1s; So it is longer to start the time of timer under the DRX pattern, causes terminal can not in time find Radio Link Failure like this.
Summary of the invention
Embodiments of the invention provide a kind of detection method and device of Radio Link Failure, make UE can in time carry out the process of follow-up recovery Radio Link.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of detection method of Radio Link Failure comprises:
Determine the specified number of step-out indication under the DRX pattern;
When reaching the specified number of step-out indication under the DRX pattern, the step-out indication that receives continuously starts timer;
If described timer expiry then is considered as Radio Link Failure.
A kind of detection method of Radio Link Failure comprises:
Receive the step-out indication;
If residue is indicated the used time smaller or equal to receiving step-out continuously detection time, then start timer;
If described timer expiry then is considered as Radio Link Failure.
A kind of checkout gear of Radio Link Failure comprises:
Determining unit is used for the specified number of determining that step-out is indicated under the DRX pattern;
Start unit is used for starting timer when the step-out indication that receives continuously reaches the specified number of step-out indication under the DRX pattern;
Processing unit is used for being considered as Radio Link Failure when described timer expiry.
A kind of checkout gear of Radio Link Failure comprises:
Receiving element is used to receive the step-out indication;
Start unit, be used for residue detection time when receiving continuously step-out and indicate used time, start timer;
Processing unit is used for being considered as Radio Link Failure when described timer expiry.
The embodiment of the invention is by redefining the specified number of step-out indication under the DRX pattern, to change the number that timer starts required continuous reception step-out indication; Perhaps preestablish one and remain detection time, to start the time restriction of the required continuous reception step-out indication of timer in this remains detection time, having solved in the prior art DRX pattern and non-DRX pattern starts the used continuous reception step-out of timer and differs bigger problem instruction time, improved the sensitivity that Radio Link Failure detects, can detect Radio Link Failure more in time, and then make terminal can in time carry out the recovery of follow-up Radio Link.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of a kind of detection method of Radio Link Failure in the embodiment of the invention;
Fig. 2 is the flow chart of the detection method of another kind of Radio Link Failure in the embodiment of the invention;
Fig. 3 is the block diagram of a kind of checkout gear of Radio Link Failure in the embodiment of the invention;
Fig. 4 is the block diagram of the checkout gear of another kind of Radio Link Failure in the embodiment of the invention;
Fig. 5 is the flow chart of a kind of detection method of Radio Link Failure in the embodiment of the invention 1;
Fig. 6 is the flow chart of a kind of detection method of Radio Link Failure in the embodiment of the invention 2;
Fig. 7 is the flow chart of a kind of detection method of Radio Link Failure in the embodiment of the invention 3;
Fig. 8 is the flow chart of a kind of detection method of Radio Link Failure in the embodiment of the invention 4;
Fig. 9 is the flow chart of a kind of detection method of Radio Link Failure in the embodiment of the invention 5;
Figure 10 is the block diagram of a kind of checkout gear of Radio Link Failure in the embodiment of the invention 6;
Figure 11 is the block diagram of the checkout gear of another kind of Radio Link Failure in the embodiment of the invention 6;
Figure 12 is the block diagram of the checkout gear of another kind of Radio Link Failure in the embodiment of the invention 6.
Embodiment
The detection method of the Radio Link Failure that the embodiment of the invention provides and device, need to determine the specified number of step-out indication under the DRX pattern, to be different from the specified number of step-out indication under the non-DRX pattern, make DRX pattern and non-DRX pattern need to receive continuously the step-out indication before starting timer time quite or more approaching, realize the reasonable detection of Radio Link Failure.Certainly, since under the DRX pattern under the specified number of step-out indication and the non-DRX pattern the specified number of step-out indication distinguish mutually, at DRX cycle under the situation in frame period, can guarantee that also the Radio Link Failure required time of detection can't be oversize under the DRX pattern, improved the sensitivity that Radio Link Failure detects, can detect Radio Link Failure more in time, and then make terminal can in time carry out the recovery of follow-up Radio Link.
The embodiment of the invention also provides a kind of residue mode detection time that limits to carry out the detection of Radio Link Failure, deducting continuous reception step-out detection time in residue indicates the used time to be not more than under 0 the situation, the expression residue uses up detection time, can start timer, detect to finish follow-up Radio Link Failure.This detection mode defines and remains detection time, can be so that in DRX pattern and the non-DRX pattern, the duration that starts the required continuous transmission step-out indication of timer is comparatively approaching, guarantee that the Radio Link Failure required time of detection can't be oversize under the DRX pattern, improved the sensitivity that Radio Link Failure detects, realize the reasonable detection of Radio Link Failure, can detect Radio Link Failure more in time, and then made terminal can in time carry out the recovery of follow-up Radio Link.
In order to improve the sensitivity that Radio Link Failure detects under the DRX pattern, the embodiment of the invention provides a kind of detection method of Radio Link Failure, and as shown in Figure 1, this method comprises:
101, determine the specified number (with parameter N 310 ' represent) of step-out indication at the DRX pattern.
102, carry out one-time detection in each DRX cycle of the physical layer of user terminal, and the signal quality in former 5 DRX cycles is as detecting foundation, signal quality in preceding 5 DRX cycles is during less than Qout, and the physical layer of user terminal sends a step-out indication to high level; When the number of the step-out indication that receives continuously reached the specified number of step-out indication under the DRX pattern, the high level of user terminal started timer.
Present embodiment and follow-up mention receive wherein a kind of that step-out indication can be for following two kinds of situations continuously:
The first, not doping indication synchronously between a plurality of step-out indications, but both there be not step-out to indicate not indication synchronously in the DRX cycle during allowing yet.
The second, doping is not synchronous between a plurality of step-out indications indicates, and any one the DRX later stage during not allowing occurs both not had the step-out indication also not have the situation of indicating synchronously.
103, behind the timer expiry of above-mentioned startup, the high level of user terminal is considered as (consider) Radio Link Failure.
The embodiment of the invention also provides the detection method of another kind of Radio Link Failure, and as shown in Figure 2, this method comprises:
201, carry out one-time detection in each DRX cycle of the physical layer of user terminal, and the signal quality in former 5 DRX cycles is as detecting foundation, signal quality in preceding 5 DRX cycles is during less than Qout, and the physical layer of user terminal sends a step-out indication to high level.
After if the high level of 202 user terminals receives the step-out indication,, then start timer if residue is indicated the used time smaller or equal to receiving step-out continuously detection time;
Present embodiment and follow-up this step-out of continuous reception of mentioning are indicated wherein a kind of that the used time can be for following two kinds of situations:
The first, not doping indication synchronously between a plurality of step-out indications, but both there be not step-out to indicate not indication synchronously in the DRX cycle during allowing yet.
The second, doping is not synchronous between a plurality of step-out indications indicates, and any one the DRX later stage during not allowing occurs both not had the step-out indication also not have the situation of indicating synchronously.
203, behind the timer expiry of above-mentioned startup, the high level of user terminal is considered as Radio Link Failure.
The embodiment of the invention is a kind of checkout gear of Radio Link Failure also, and as shown in Figure 3, this checkout gear comprises: determining unit 31, start unit 32 and processing unit 33.
Wherein, in order to be different from the specified number (parameter N 310) of step-out indication under the non-DRX pattern, determining unit 31 is used for determining the specified number of step-out indication under the DRX pattern; Start unit 32 is used for starting timer when the step-out indication that receives continuously reaches the specified number of step-out indication under the DRX pattern; Processing unit 33 is used for being considered as Radio Link Failure when described timer expiry.
The embodiment of the invention also provides a kind of checkout gear of Radio Link Failure, and as shown in Figure 4, this checkout gear comprises: receiving element 41, start unit 42 and processing unit 43.
Wherein, receiving element 41 is used to receive the step-out indication; Start unit 42 be used for residue detection time when receiving continuously step-out and indicate used time, start timer; Processing unit 43 is used for being considered as Radio Link Failure when described timer expiry.
The detection method of the Radio Link Failure that the embodiment of the invention provides and device, need to determine the specified number of step-out indication under the DRX pattern, to be different from the specified number of step-out indication under the non-DRX pattern, make DRX pattern and non-DRX pattern need to receive continuously the step-out indication before starting timer time quite or more approaching, realize the reasonable detection of Radio Link Failure.Certainly, since under the DRX pattern under the specified number of step-out indication and the non-DRX pattern the specified number of step-out indication distinguish mutually, at DRX cycle under the situation in frame period, can guarantee that also the Radio Link Failure required time of detection can't be oversize under the DRX pattern, improve the sensitivity that Radio Link Failure detects.
The embodiment of the invention also provides a kind of residue mode detection time that limits to carry out the detection of Radio Link Failure, starts timer smaller or equal to receiving continuously when step-out is indicated used time in residue detection time, detects to finish follow-up Radio Link Failure.This detection mode defines and remains detection time, can be so that in DRX pattern and the non-DRX pattern, the duration that starts the required continuous transmission step-out indication of timer is comparatively approaching, guarantee that the Radio Link Failure required time of detection can't be oversize under the DRX pattern, improve the sensitivity that Radio Link Failure detects, realized the reasonable detection of Radio Link Failure.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment 1:
Because N310 is the parameter of setting under the non-DRX pattern, the user terminal of present embodiment reconfigures the N310 ' under the DRX pattern, that is: the specified number of step-out indication under the DRX pattern.Present embodiment provides a kind of detection method of Radio Link Failure, and as shown in Figure 5, this method comprises:
501, the specified number N310 of step-out indication under the non-DRX pattern be multiply by frame period 10ms obtain one equivalent detection time T, that is: T=N310*10ms.Hypothesis N310 is 10 in the present embodiment, equivalent detection time of the T=100ms that then calculates.
502, with above-mentioned equivalence T detection time divided by DRX cycle, and the result after being divided by rounded downwards.The hypothesis DRX cycle is 80ms in the present embodiment, equals 1 downwards after then T rounds divided by 80 and is last result of calculation.During concrete enforcement, also the result after being divided by can be rounded up, and the numerical value after will rounding up is as last result of calculation.
503, the specified number N310 ' that directly numerical value that obtains after above-mentioned the rounding is indicated as step-out under the DRX pattern, that is: N310 '=1.
504, reach N310 ' time that aforementioned calculation goes out in the number that receives the step-out indication continuously, start timer, be equivalent to receive 1 step-out indication back in the present embodiment and just can start timer.
505, under the situation of above-mentioned timer expiry, the declaration Radio Link Failure.
Adjust the specified number of step-out indication under the DRX pattern by the foregoing description after, start in the DRX pattern the needed time of timer just and start under the non-DRX pattern the needed time of timer quite near.With the situation in the present embodiment is example: starting the needed continuous reception step-out of timer instruction time under the non-DRX pattern is 100ms, and start the needed continuous reception step-out of timer instruction time in the prior art under the DRX pattern is 800ms, differs quite big; But after the employing present embodiment, start the needed continuous reception step-out of timer instruction time under the DRX pattern for only being 80ms, comparatively approaching instruction time with the needed continuous reception step-out of startup timer under the DRX pattern.
Calculate in the present embodiment N310 ' process can also for: the numerical value after rounding in above-mentioned 502 is added that a specific natural number is as last N310 ', this natural number can be 1,2 or 3 or the like, so still can guarantee to start in the DRX pattern the needed time of timer just and to start the needed time of timer under the non-DRX pattern more approaching.
Because N310 ' minimum is necessary for 1, so if T divided by DRX cycle and can getable numerical value be 0 after rounding, also be the numerical value after rounding can be added a specific natural number as last N310 ', this natural number can be 1,2 or 3 or the like.For example: DRX cycle is 160ms in hypothesis the foregoing description, then to round downwards divided by 160 be 0 to T, add a specific natural number 1 or 2 as last N310 ', also can reach under DRX pattern and the non-DRX pattern, starting the required more approaching effect of time of timer.
Generally speaking, if DRX cycle is longer in the present embodiment, to such an extent as to it is above to have reached the twice of equivalent detection time of T, above added natural number be traditionally arranged to be 1 comparatively reasonable, the N310 ' that obtains at last also simply value be 1, to guarantee under DRX pattern and the non-DRX pattern that it is more approaching to start the required time of timer.
Because it is more approaching to start the required time of timer under DRX pattern and the non-DRX pattern, guarantee that the Radio Link Failure required time of detection can be not oversize under the DRX pattern, improved the sensitivity that Radio Link Failure detects, can detect Radio Link Failure more in time, and then make terminal can in time carry out the recovery of follow-up Radio Link.
Embodiment 2:
The user terminal of present embodiment reconfigures the N310 ' under the DRX pattern.Present embodiment provides the detection method of another kind of Radio Link Failure, and as shown in Figure 6, this method comprises:
601, the specified number N310 with step-out indication under the non-DRX pattern multiply by frame period 10ms, and add under the non-DRX pattern physical layer evaluation time obtain one equivalent detection time T, the physical layer evaluation time is 200ms (because each assessment all is the signal quality of preceding 200ms), that is: T=N310*10ms+200ms under the non-DRX pattern wherein.Hypothesis N310 is 10 in the present embodiment, equivalent detection time of the T=300ms that then calculates.
602, deducted the physical layer evaluation time under the DRX pattern above-mentioned equivalent detection time, wherein the physical layer evaluation time can be 5 DRX cycles (because each assessment all is the signal quality of preceding 5 DRX cycles) under the DRX pattern, the hypothesis DRX cycle is 40ms in the present embodiment, and then last result of calculation is: 300-40*5=100ms.
603, with aforementioned calculation as a result 100ms and the result after being divided by rounded downwards divided by DRX cycle.The hypothesis DRX cycle is 40ms in the present embodiment, and then 100 equal 2 after rounding divided by 40 downwards and are last result of calculation.During concrete enforcement, also the result after being divided by can be rounded up, and the numerical value after will rounding up is as last result of calculation.
604, the specified number N310 ' that directly numerical value that obtains after above-mentioned the rounding is indicated as step-out under the DRX pattern, that is: N310 '=2.
605, reach N310 ' time that aforementioned calculation goes out in the number that receives the step-out indication continuously, start timer, be equivalent to receive 2 step-out indication backs in the present embodiment and just can start timer.
606, under the situation of above-mentioned timer expiry, the declaration Radio Link Failure.
Adjust the specified number of step-out indication under the DRX pattern by the foregoing description after, start in the DRX pattern the needed time of timer just and start under the non-DRX pattern the needed time of timer quite near.With the situation in the present embodiment is example: starting the needed continuous reception step-out of timer instruction time under the non-DRX pattern is 100ms, and start the needed continuous reception step-out of timer instruction time in the prior art under the DRX pattern is 400ms, differs quite big; But after the employing present embodiment, start the needed continuous reception step-out of timer instruction time under the DRX pattern for only being 80ms, comparatively approaching instruction time with the needed continuous reception step-out of startup timer under the DRX pattern.
Calculate in the present embodiment N310 ' process can also for: the numerical value after rounding in above-mentioned 603 is added that a specific natural number is as last N310 ', this natural number can be 1,2 or 3 or the like, so still can guarantee to start in the DRX pattern the needed time of timer just and to start the needed time of timer under the non-DRX pattern more approaching.
Because N310 ' minimum is necessary for 1, so, if can getable numerical value be 0 after rounding, also the numerical value after rounding can be added a specific natural number as last N310 ', this natural number can be 1,2 or 3 or the like.If can getable numerical value after rounding less than 0, then can with N310 ' fixedly value be 1, for example: suppose that DRX cycle is 64ms in the foregoing description, then last result calculated should be: ((300-320)/40)=-0.5, be one less than 0 number, so can with N310 ' fixedly value be 1, so still can make under DRX pattern and the non-DRX pattern, it is more approaching to start the required time of timer.
Because it is more approaching to start the required time of timer under DRX pattern and the non-DRX pattern, guarantee that the Radio Link Failure required time of detection can be not oversize under the DRX pattern, improved the sensitivity that Radio Link Failure detects, can detect Radio Link Failure more in time, and then make terminal can in time carry out the recovery of follow-up Radio Link.
Embodiment 3:
The user terminal of present embodiment reconfigures the N310 ' under the DRX pattern.Present embodiment provides the detection method of another kind of Radio Link Failure, and as shown in Figure 7, this method comprises:
701, the specified number N310 with step-out indication under the non-DRX pattern multiply by frame period 10ms, and add timer duration under the non-DRX pattern (can represent) with T310 obtain one equivalent detection time T, that is: T=N310*10ms+T310.Suppose N310=10 in the present embodiment, T310=500ms, equivalent detection time of the T=600ms that then calculates.
702, with above-mentioned equivalence T detection time divided by DRX cycle, and the result after being divided by rounded.The hypothesis DRX cycle is 80ms in the present embodiment, equals 7 or 8 after then T rounds divided by 80 and is last result of calculation.
703, the specified number N310 ' that directly numerical value that obtains after above-mentioned the rounding is indicated as step-out under the DRX pattern, that is: N310 '=7.
704, reach N310 ' time that aforementioned calculation goes out in the number that receives the step-out indication continuously, start timer, be equivalent to receive 1 step-out indication back in the present embodiment and just can start timer.
705, under the situation of above-mentioned timer expiry, the declaration Radio Link Failure.
Calculate in the present embodiment N310 ' process can also for: the numerical value after rounding in above-mentioned 702 is added that a specific natural number is as last N310 ', be for 0 the situation particularly for rounding numerical value at last, numerical value after rounding must be added that specific natural number is as last N310 ', this natural number can be 1,2 or 3 or the like, so still can guarantee to start in the DRX pattern the needed time of timer just and to start the needed time of timer under the non-DRX pattern more approaching.
Adjust the specified number of step-out indication under the DRX pattern by the foregoing description after, start in the DRX pattern the needed time of timer just and start under the non-DRX pattern the needed time of timer quite near.With the situation in the present embodiment is example: starting the needed continuous reception step-out of timer instruction time under the non-DRX pattern is 100ms, and start the needed continuous reception step-out of timer instruction time in the prior art under the DRX pattern is 800ms, differs quite big; But after the employing present embodiment, start the needed continuous reception step-out of timer instruction time under the DRX pattern for only being 560ms, comparatively approaching instruction time with the needed continuous reception step-out of startup timer under the DRX pattern.
Because it is more approaching to start the required time of timer under DRX pattern and the non-DRX pattern, guarantee that the Radio Link Failure required time of detection can be not oversize under the DRX pattern, improved the sensitivity that Radio Link Failure detects, can detect Radio Link Failure more in time, and then make terminal can in time carry out the recovery of follow-up Radio Link.
Embodiment 4:
The user terminal of present embodiment reconfigures the N310 ' under the DRX pattern.Present embodiment provides the detection method of another kind of Radio Link Failure, and as shown in Figure 8, this method comprises:
801, the specified number N310 with step-out indication under the non-DRX pattern multiply by frame period 10ms, add timer duration under the non-DRX pattern (adopting T310 to represent) then, and add under the non-DRX pattern physical layer evaluation time obtain one equivalent detection time T, the physical layer evaluation time is 200ms (because each assessment all is the signal quality of preceding 200ms), that is: T=N310*10ms+T310+200ms under the non-DRX pattern wherein.Suppose N310=10 in the present embodiment, T310=500ms, equivalent detection time of the T=800ms that then calculates.
802, deducted the physical layer evaluation time under the DRX pattern above-mentioned equivalent detection time, wherein the physical layer evaluation time can be 5 DRX cycles (because each assessment all is the signal quality of preceding 5 DRX cycles) under the DRX pattern, the hypothesis DRX cycle is 80ms in the present embodiment, and then last result of calculation is: 800-80*5=400ms.
803, with aforementioned calculation as a result 400ms and the result after being divided by rounded downwards divided by DRX cycle.The hypothesis DRX cycle is 80ms in the present embodiment, and then 400 equal 5 after rounding divided by 80 downwards and are last result of calculation.During concrete enforcement, also the result after being divided by can be rounded up, and the numerical value after will rounding up is as last result of calculation.
804, the specified number N310 ' that directly numerical value that obtains after above-mentioned the rounding is indicated as step-out under the DRX pattern, that is: N310 '=5.
805, reach N310 ' time that aforementioned calculation goes out in the number that receives the step-out indication continuously, start timer, be equivalent to receive 5 step-out indication backs in the present embodiment and just can start timer.
806, under the situation of above-mentioned timer expiry, the declaration Radio Link Failure.
Calculate in the present embodiment N310 ' process can also for: the numerical value after rounding in above-mentioned 803 is added that a specific natural number is as last N310 ', be for 0 the situation particularly for rounding numerical value at last, numerical value after rounding must be added that specific natural number is as last N310 ', this natural number can be 1,2 or 3 or the like, so still can guarantee to start in the DRX pattern the needed time of timer just and to start the needed time of timer under the non-DRX pattern more approaching.
Adjust the specified number of step-out indication under the DRX pattern by the foregoing description after, start in the DRX pattern the needed time of timer just and start under the non-DRX pattern the needed time of timer quite near.With the situation in the present embodiment is example: starting the needed continuous reception step-out of timer instruction time under the non-DRX pattern is 100ms, and start the needed continuous reception step-out of timer instruction time in the prior art under the DRX pattern is 800ms, differs quite big; But after the employing present embodiment, start the needed continuous reception step-out of timer instruction time under the DRX pattern for only being 400ms, comparatively approaching instruction time with the needed continuous reception step-out of startup timer under the non-DRX pattern.
The foregoing description 1 to embodiment 4 all needs to calculate equivalent detection time, carry out the calculating of N310 ' then, when specific implementation, can will preset duration divided by DRX cycle and round, with the specified number N310 ' of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number N310 ' of specific natural number as step-out indication under the DRX pattern.And default duration wherein can be the duration of predesignating in the communication protocol, also can be that network side is the duration of user terminal configuration by information system or dedicated signaling.
Because it is more approaching to start the required time of timer under DRX pattern and the non-DRX pattern, guarantee that the Radio Link Failure required time of detection can be not oversize under the DRX pattern, improved the sensitivity that Radio Link Failure detects, can detect Radio Link Failure more in time, and then make terminal can in time carry out the recovery of follow-up Radio Link.
For a kind of in can also be in the following way of the mode of setting N310 ' in the embodiment of the invention:
The first, with the specified number of non-DRX pattern step-out indication divided by predetermined zoom factor and round, as N310 ', the number after perhaps rounding adds that specific natural number is as N310 ' with the number after rounding.
Above-mentioned predetermined zoom factor a is the fixedly scaling factor that network side passes through information system or dedicated signaling configuration.
The numerical value that above-mentioned predetermined zoom factor also can round after divided by fiducial time for DRX cycle also can be the fixedly scaling factor of network side by information system or dedicated signaling configuration.
For example: suppose that DRX cycle is 160ms; Get a specific reference time S (can give UE by base station configuration this fiducial time, write out determined value in also can agreement use), if S is 40ms to UE; Zoom factor a160/40=4 then; At this moment, if N310=10, then the N310 ' under the DRX pattern is N310/a, carry out rounding operation after N310 ' can get 2 or 3.
The second, by network side directly by the N310 ' of information system or proprietary signaling configuration, like this, user terminal just can receive the N310 ' that disposes by information system or proprietary signaling, and with the N310 ' that the receives foundation as follow-up startup timer.
Embodiment 5:
Present embodiment directly limits the time of detecting of-step signal, thereby makes that the required continuous reception step-out of startup timer is more approaching instruction time in DRX pattern and the non-DRX pattern.Present embodiment provides the detection method of another kind of Radio Link Failure, and as shown in Figure 9, this method comprises:
901, at first calculate residue detection time, so that the time restriction that will detect of-step signal is in this residue scope of detection time.Account form is in this process: the specified number of step-out indication under the non-DRX pattern be multiply by the frame period obtains remaining detection time, that is: with N310 * 10ms as residue detection time, suppose N310=10 in the present embodiment, then remaining detection time is 100ms.
When specific implementation, the mode that obtains residue detection time can also adopt but be not limited to wherein a kind of in the following mode:
The first, the specified number with step-out indication under the non-DRX pattern multiply by the frame period, and add that the physical layer evaluation time obtains remaining detection time under the non-DRX pattern, the physical layer evaluation time is 200ms (because each assessment all is the signal quality of preceding 200ms) under the non-DRX pattern wherein, that is: with N310 * 10ms+200ms as residue detection time.
The second, in communication protocol, predesignate duration, with the duration of this regulation as residue detection time.
Three, dispose duration by information system or dedicated signaling to user terminal by network side, and the duration that will dispose is as remaining detection time.
902, when receiving the step-out indication continuously, to remain to deduct detection time and receive step-out and indicate the used time, receiving step-out in this process indicates the used time to be: receive step-out from the last time and indicate or be indicated to synchronously the time that this receives the step-out indication, perhaps this receives used DRX cycle time of step-out indication.
Particularly, be an indication synchronously if this receives what receive before the step-out indication, then need to go to subtract detection time to receive step-out and indicate the used time with the most initial residue; If this receives what receive before the step-out indication is a step-out indication, upgrades the residue that obtains after then only needing to subtract last time and go to subtract the reception step-out detection time and indicate the used time.
903, judge that residue deducts detection time and receive step-out and indicate the used time,, then carry out 904 if residue deducts and receive this step-out and indicate the used time to be not more than 0 detection time whether greater than 0; If residue deducts and receive this step-out and indicate the used time greater than 0 detection time, then carry out 906.
904, residue deducts and receive this step-out and indicate the used time to be not more than 0 detection time, and the expression residue uses up detection time, can start timer; This be equivalent to before starting timer, to receive continuously time that the step-out indication experienced can very approaching residue detection time, only need will remain set detection time rationally enough, it is comparatively approaching instruction time just can to guarantee to start the needed continuous reception step-out of timer under the DRX pattern.For example: in the present embodiment the specified number of step-out indication under the non-DRX pattern being multiply by the frame period obtains remaining detection time, promptly can reach above-mentioned requirements.
Set the residue mode of detection time in 3 for mentioning other in 901 processes, do simple a commentary below:
For first method, when carrying out 902 processes, if this receives what receive before the step-out indication is an indication synchronously, then need this residue is deducted the physical layer evaluation time under the DRX pattern detection time earlier, then in the operation of carrying out in 902, wherein the physical layer evaluation time can be 5 DRX cycles (because each assessment all is the signal quality of preceding 5 DRX cycles) under the DRX pattern, so that it is comparatively approaching instruction time to start the needed continuous reception step-out of timer under the DRX pattern.
Only need be when setting duration for second method and the third method, calculate the corresponding time under the non-DRX pattern earlier, just can obtain more reasonably remaining detection time, and whether the size of the DRX cycle of forgetting it, forgetting it has the situation of DRX pattern and non-DRX mode switch.
905, if described timer expiry then is considered as Radio Link Failure, the testing process of this Radio Link Failure finishes.
906, residue deducts and receive this step-out and indicate the used time greater than 0 detection time, the expression residue does not also use up detection time, can not start timer, then will remain to deduct detection time and receive this step-out and indicate the result of used time to be updated to residue detection time, so that when receiving the step-out indication once more, go to subtract the reception step-out used time of indication with the residue after upgrading detection time, and return and carry out 902.
The method that present embodiment provides also needs to carry out one or more following special processings in the process of implementation, and is specific as follows:
If 1 receives the synchronous indication that the user terminal physical layer reports, represent that then the signal quality of Serving cell can be used, can there be the possibility of failure in Radio Link, and then current detection of expression finished, and recovers the residue detection time of initial setting.
Promptly do not report synchronous indication if 2 receive the user terminal physical layer, also do not report the step-out indication, then assessment continues, but need not deduct this DRX cycle detection time from residue.
If 3 physical layers in a DRX cycle, no matter for what reason reported 1 time or repeatedly step-out indication, then only need deduct the time of a DRX cycle from residue detection time.
If 4 user terminals begin to enter non-DRX pattern from certain DRX cycle, and reported n step-out indication, then deducted n * 10ms detection time from residue.
The embodiment of the invention limits the time that starts timer under the DRX pattern detection time by residue, makes that to start the needed continuous reception step-out of timer in DRX pattern and the non-DRX pattern comparatively approaching instruction time.And, can improve the sensitivity that Radio Link Failure detects detection time by reducing to remain, can detect Radio Link Failure more in time, and then make terminal can in time carry out the recovery of follow-up Radio Link.
Can also adopt other modes to realize remaining detection time in the present embodiment and receive the comparison that step-out is indicated the used time continuously, for example:
At first, receive step-out continuously and indicate the used time receiving step-out when indication statistics, judge that then whether residue deducts time of counting detection time greater than 0; If remaining and deducting the time that counts detection time is to be not more than 0, then determine to remain detection time and indicate the used time smaller or equal to receiving step-out continuously, can start timer at this moment.
Embodiment 6:
The embodiment of the invention is a kind of checkout gear of Radio Link Failure also, and as shown in figure 10, this device comprises: determining unit 11, start unit 12 and processing unit 13.
Wherein, determining unit 11 is used for determining the specified number of step-out indication under the DRX pattern; Start unit 12 is used for starting timer when the step-out indication that receives continuously reaches the specified number of step-out indication under the DRX pattern; Processing unit 13 is used for being considered as Radio Link Failure when described timer expiry.
Shown in the dotted line among Figure 10, in the present embodiment really order unit 11 can adopt following implementation:
The first, described determining unit 11 comprises: first calculates 113 and second calculates 114.Wherein, first computing module 113 is used for specified number with step-out indication under the non-DRX pattern and multiply by the frame period and obtain equivalence detection time; Perhaps, the specified number that step-out under the non-DRX pattern is indicated multiply by the frame period, adds that then timer duration obtains equivalent detection time under the non-DRX pattern; Second computing module 114 be used for equivalence detection time divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
Second is the same with first kind of mode, determining unit 11 comprises: first calculating, 111 and second calculating 112 still function is distinguished to some extent, wherein, first computing module 113 is used for the specified number of step-out indication under the non-DRX pattern be multiply by the frame period, adds that then the physical layer evaluation time obtains equivalent detection time under the non-DRX pattern; Perhaps, the specified number that step-out under the non-DRX pattern is indicated multiply by the frame period, adds timer duration under the non-DRX pattern then, and adds that the physical layer evaluation time obtains equivalent detection time under the non-DRX pattern; Second computing module 114 be used for equivalence deduct detection time under the DRX pattern physical layer after the evaluation time divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
Three, described determining unit 11 comprises that first rounds processing module 115, this first rounds processing module 115 and is used for default duration divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
Four, described determining unit 11 comprises that second rounds processing module 116, this second rounds processing module 116 and is used for specified number with the indication of non-DRX pattern step-out divided by predetermined zoom factor and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
Five, described determining unit 11 comprises receiver module 117, and this receiver module 117 is used to receive the specified number by step-out indication under the DRX pattern of information system or the configuration of proprietary signaling.
The embodiment of the invention also provides the checkout gear of another kind of Radio Link Failure, comprises as shown in figure 11: receiving element 1101, start unit 1102 and processing unit 1103.
Wherein, receiving element 1101 is used to receive the step-out indication; Start unit 1102 be used for residue detection time when receiving continuously step-out and indicate used time, start timer; Processing unit 1103 is used for being considered as Radio Link Failure when described timer expiry.
Wherein, determine residue detection time to indicate the used time to adopt but be not limited to a kind of in following two kinds of schemes smaller or equal to receiving step-out continuously:
The first, as shown in figure 11, this device also comprises: computing unit 1104, first judging unit 1105, updating block 1106.Computing unit 1104 is used for receiving step-out when indication, initial residue is deducted detection time receive current step-out and indicate the used time; First judging unit 1105 is used to judge that initial residue deducts detection time receives step-out and indicate the used time whether greater than 0; Updating block 1106 is used for deducting detection time in residue and receives this step-out and indicate the used time greater than 0 o'clock; Residue deducted detection time receive current step-out and indicate the result of used time to upgrade and save as residue detection time; Described start unit 1102 deducts in residue and receive this step-out and indicate the used time to be not more than at 0 o'clock detection time, determines that residue indicates the used time smaller or equal to receiving step-out continuously detection time.
The second, as shown in figure 12, this device also comprises: statistic unit 1107, second judging unit 1108, and wherein statistic unit 1107 is used for when receiving the step-out indication, and statistics receives step-out continuously and indicates the used time; Second judging unit 1108 is used to judge that whether residue deducts time of counting detection time greater than 0; It is to be not more than at 0 o'clock that described start unit 1102 deducts the time that counts in residue detection time, determines that residue indicates the used time smaller or equal to receiving step-out continuously detection time.
Residue detection time described in the present embodiment can for: the specified number of step-out indication multiply by the frame period under the non-DRX pattern; The specified number of step-out indication multiply by the frame period under the perhaps non-DRX pattern, and adds the physical layer evaluation time under the non-DRX pattern; The perhaps duration of predesignating in the communication protocol; Perhaps pass through the duration of information system or dedicated signaling configuration.
The said apparatus that the embodiment of the invention provides can be used on the user terminal, particularly the user terminal in the wireless communication system.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk as computer, hard disk or CD etc., comprise some instructions with so that user terminal (can be personal computer, mobile phone, perhaps personal digital assistant etc.) carry out the described method of each embodiment of the present invention.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (24)
1. the detection method of a Radio Link Failure is characterized in that, comprising:
Determine the specified number of step-out indication under the DRX pattern;
When reaching the specified number of step-out indication under the DRX pattern, the step-out indication that receives continuously starts timer;
If described timer expiry then is considered as Radio Link Failure.
2. the detection method of Radio Link Failure according to claim 1 is characterized in that, determines that the specified number of step-out indication under the DRX pattern comprises:
Calculate the equivalent detection time under the non-DRX pattern;
According to described equivalence detection time and DRX cycle calculating the specified number of step-out indication under the DRX pattern.
3. the detection method of Radio Link Failure according to claim 1 is characterized in that,
Be the equivalent detection time under the non-DRX pattern of described calculating: the specified number of step-out indication under the non-DRX pattern be multiply by the frame period obtain equivalence detection time; Perhaps, the specified number that step-out under the non-DRX pattern is indicated multiply by the frame period, adds that then timer duration obtains equivalent detection time under the non-DRX pattern;
The described specified number of calculating step-out indication under the DRX pattern according to described equivalence detection time and DRX cycle is: with equivalence detection time divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
4. the detection method of Radio Link Failure according to claim 1 is characterized in that,
Be the equivalent detection time under the non-DRX pattern of described calculating: the specified number of step-out indication under the non-DRX pattern be multiply by the frame period, add then under the non-DRX pattern that the physical layer evaluation time obtains equivalence detection time; Perhaps, the specified number that step-out under the non-DRX pattern is indicated multiply by the frame period, adds timer duration under the non-DRX pattern then, and adds that the physical layer evaluation time obtains equivalent detection time under the non-DRX pattern;
The described specified number of calculating step-out indication under the DRX pattern according to described equivalence detection time and DRX cycle is: with equivalence deduct detection time under the DRX pattern physical layer after the evaluation time divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
5. the detection method of Radio Link Failure according to claim 1, it is characterized in that, the specified number of determining the indication of step-out under the DRX pattern is: will preset duration divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
6. the detection method of Radio Link Failure according to claim 5 is characterized in that, described default duration is: duration of predesignating in communication protocol or the duration that disposes by information system or dedicated signaling.
7. the detection method of Radio Link Failure according to claim 1 is characterized in that, determines that the specified number of step-out indication under the DRX pattern comprises:
Divided by predetermined zoom factor and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps rounding adds the specified number that specific natural number is indicated as step-out under the DRX pattern with the specified number of non-DRX pattern step-out indication.
8. the detection method of Radio Link Failure according to claim 7 is characterized in that, described predetermined zoom factor is: the numerical value that DRX cycle rounds after divided by fiducial time or the fixedly scaling factor by information system or dedicated signaling configuration.
9. the detection method of Radio Link Failure according to claim 1 is characterized in that, determines that the specified number of step-out indication under the DRX pattern is: receive the specified number by step-out indication under the DRX pattern of information system or the configuration of proprietary signaling.
10. the detection method of a Radio Link Failure is characterized in that, comprising:
Receive the step-out indication;
If residue is indicated the used time smaller or equal to receiving step-out continuously detection time, then start timer;
If described timer expiry then is considered as Radio Link Failure.
11. the detection method of Radio Link Failure according to claim 10 is characterized in that, described definite residue indicates the used time to comprise smaller or equal to receiving step-out continuously detection time:
Receiving step-out when indication, initial residue is deducted detection time receiving current step-out and indicate the used time;
Whether judge that initial residue deducts detection time receives step-out and indicates the used time greater than 0;
If residue deducts and receive this step-out and indicate the used time to be not more than 0 detection time, determine that then residue indicates the used time smaller or equal to receiving step-out continuously detection time;
If residue deducts and receive this step-out and indicate the used time greater than 0 detection time; Then will remain to deduct detection time and receive current step-out and indicate the result of used time to upgrade and save as residue detection time.
12. the detection method of Radio Link Failure according to claim 11 is characterized in that, if receive synchronous indication, then recovers initial residue detection time.
13. the detection method of Radio Link Failure according to claim 10 is characterized in that, described definite residue indicates the used time to comprise smaller or equal to receiving step-out continuously detection time:
When receiving the step-out indication, statistics receives step-out continuously and indicates the used time;
Judge that whether residue deducts time of counting detection time greater than 0;
If remaining and deducting the time that counts detection time is to be not more than 0, then determines to remain detection time and indicate the used time smaller or equal to receiving step-out continuously.
14. the detection method of Radio Link Failure according to claim 10 is characterized in that, described residue is detection time: the specified number of step-out indication multiply by the frame period under the non-DRX pattern; The specified number of step-out indication multiply by the frame period under the perhaps non-DRX pattern, and adds the physical layer evaluation time under the non-DRX pattern; The perhaps duration of predesignating in the communication protocol; Perhaps pass through the duration of information system or dedicated signaling configuration.
15. the checkout gear of a Radio Link Failure is characterized in that, comprising:
Determining unit is used for the specified number of determining that step-out is indicated under the DRX pattern;
Start unit is used for starting timer when the step-out indication that receives continuously reaches the specified number of step-out indication under the DRX pattern;
Processing unit is used for being considered as Radio Link Failure when described timer expiry.
16. the detection method of Radio Link Failure according to claim 15 is characterized in that, described determining unit comprises:
First computing module is used to calculate the equivalent detection time under the non-DRX pattern;
Second computing module is used for according to described equivalence detection time and DRX cycle calculating the specified number of step-out indication under the DRX pattern.
17. the checkout gear of Radio Link Failure according to claim 16 is characterized in that,
The specified number with step-out indication under the non-DRX pattern of being used for described first computing module multiply by the frame period and obtains equivalence detection time; Perhaps, the specified number that step-out under the non-DRX pattern is indicated multiply by the frame period, adds that then timer duration obtains equivalent detection time under the non-DRX pattern;
Described second computing module be used for equivalence detection time divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
18. the checkout gear of Radio Link Failure according to claim 16 is characterized in that,
Described first computing module is used for the specified number of step-out indication under the non-DRX pattern be multiply by the frame period, adds that then the physical layer evaluation time obtains equivalent detection time under the non-DRX pattern; Perhaps, the specified number that step-out under the non-DRX pattern is indicated multiply by the frame period, adds timer duration under the non-DRX pattern then, and adds that the physical layer evaluation time obtains equivalent detection time under the non-DRX pattern;
Described second computing module be used for equivalence deduct detection time under the DRX pattern physical layer after the evaluation time divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
19. the checkout gear of Radio Link Failure according to claim 15, it is characterized in that, described determining unit comprises: first rounds processing module, be used for to preset duration divided by DRX cycle and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps will rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
20. the checkout gear of Radio Link Failure according to claim 15, it is characterized in that, described determining unit comprises: second rounds processing module, be used for specified number with the indication of non-DRX pattern step-out divided by predetermined zoom factor and round, with the specified number of the number after rounding as step-out indication under the DRX pattern, the number after perhaps rounding adds the specified number of specific natural number as step-out indication under the DRX pattern.
21. the checkout gear of Radio Link Failure according to claim 15 is characterized in that, described determining unit comprises: receiver module is used to receive the specified number by step-out indication under the DRX pattern of information system or the configuration of proprietary signaling.
22. the checkout gear of a Radio Link Failure is characterized in that, comprising:
Receiving element is used to receive the step-out indication;
Start unit, be used for residue detection time when receiving continuously step-out and indicate used time, start timer;
Processing unit is used for being considered as Radio Link Failure when described timer expiry.
23. the checkout gear of Radio Link Failure according to claim 22 is characterized in that, this device also comprises:
Computing unit is used for receiving step-out when indication, initial residue is deducted detection time receive current step-out and indicate the used time;
First judging unit is used to judge that initial residue deducts detection time receives step-out and indicate the used time whether greater than 0;
Updating block is used for deducting detection time in residue and receives this step-out and indicate the used time greater than 0 o'clock; Residue deducted detection time receive current step-out and indicate the result of used time to upgrade and save as residue detection time;
Described start unit deducts in residue and receive this step-out and indicate the used time to be not more than at 0 o'clock detection time, determines that residue indicates the used time smaller or equal to receiving step-out continuously detection time.
24. the checkout gear of Radio Link Failure according to claim 22 is characterized in that, this device also comprises:
Statistic unit is used for when receiving the step-out indication, and statistics receives step-out continuously and indicates the used time;
Second judging unit is used to judge that whether residue deducts time of counting detection time greater than 0;
It is to be not more than at 0 o'clock that described start unit deducts the time that counts in residue detection time, determines that residue indicates the used time smaller or equal to receiving step-out continuously detection time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910001745A CN101772048A (en) | 2009-01-04 | 2009-01-04 | Method and device for detecting failure of wireless link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910001745A CN101772048A (en) | 2009-01-04 | 2009-01-04 | Method and device for detecting failure of wireless link |
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| CN101772048A true CN101772048A (en) | 2010-07-07 |
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| CN200910001745A Pending CN101772048A (en) | 2009-01-04 | 2009-01-04 | Method and device for detecting failure of wireless link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103747471A (en) * | 2013-12-27 | 2014-04-23 | 北京邮电大学 | Method for recovering wireless link and wireless terminal |
| CN106131883A (en) * | 2010-10-29 | 2016-11-16 | 三星电子株式会社 | subscriber station, base station and method thereof |
| CN108353298A (en) * | 2015-11-05 | 2018-07-31 | 株式会社Ntt都科摩 | User apparatus and wireless communications method |
| CN109983822A (en) * | 2019-02-18 | 2019-07-05 | 北京小米移动软件有限公司 | Operation method, device, equipment and the storage medium of DRX timer |
| EP4243560A3 (en) * | 2018-07-27 | 2024-02-28 | Huawei Technologies Co., Ltd. | Link failure recovery in c-drx mode |
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2009
- 2009-01-04 CN CN200910001745A patent/CN101772048A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131883A (en) * | 2010-10-29 | 2016-11-16 | 三星电子株式会社 | subscriber station, base station and method thereof |
| CN103747471A (en) * | 2013-12-27 | 2014-04-23 | 北京邮电大学 | Method for recovering wireless link and wireless terminal |
| CN108353298A (en) * | 2015-11-05 | 2018-07-31 | 株式会社Ntt都科摩 | User apparatus and wireless communications method |
| CN108353298B (en) * | 2015-11-05 | 2021-06-29 | 株式会社Ntt都科摩 | User device and wireless communication method |
| EP4243560A3 (en) * | 2018-07-27 | 2024-02-28 | Huawei Technologies Co., Ltd. | Link failure recovery in c-drx mode |
| US12082285B2 (en) | 2018-07-27 | 2024-09-03 | Huawei Technologies Co., Ltd. | Link failure recovery in C-DRX mode |
| CN109983822A (en) * | 2019-02-18 | 2019-07-05 | 北京小米移动软件有限公司 | Operation method, device, equipment and the storage medium of DRX timer |
| CN109983822B (en) * | 2019-02-18 | 2023-06-30 | 北京小米移动软件有限公司 | DRX timer running method, device, equipment and storage medium |
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