CN102946299B - Method and device for monitoring frame loss and base station - Google Patents
Method and device for monitoring frame loss and base station Download PDFInfo
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- CN102946299B CN102946299B CN201210484364.2A CN201210484364A CN102946299B CN 102946299 B CN102946299 B CN 102946299B CN 201210484364 A CN201210484364 A CN 201210484364A CN 102946299 B CN102946299 B CN 102946299B
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Abstract
The invention relates to the technical field of communication and discloses a method for monitoring frame loss, a device corresponding to the method and a base station including the device. By utilizing a counter for correctly decoded random access channel (RACH) data frame numbers, a counter for forward access channel (FACH) data frame numbers received by a physical layer and three designed parameters, the FACH frame loss is monitored and warned, the occurring time of the frame loss can be confirmed, and the monitoring sensitivity and as-required adjustment of warning amount can be achieved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of monitor frame losing method, device and base station.
Background technology
At user equipment (UE) by Access Network UTRAN(UMTS land radio access web) in the process of core network access, need to use FACH(Forward Access Channel, forward access channel).FACH is a descending transmission channel, and can determine the prerequisite of community, UE place at UTRAN under, FACH is used for sending control information to UE, sometimes, FACH also can be used to send short business data packet.FACH main in the random access procedure with RACH(Random Access Channel, Random Access Channel) with the use of, to complete access procedure.
Finding in the application of equipment, after being uploaded by physical layer correct decoding, often can there is the mistake of FACH frame losing in RACH Frame.For this mistake, at present, the scheme of monitoring the frame losing of FACH Frame is: design 3 counters: 1. the RACH data frame counter that decoding is correct; 2. the RACH data frame counter of decoding error; 3. the FACH Frame counter that receives of physical layer PL.When Stochastic accessing makes a mistake, and when suspecting that PL does not receive FACH Frame, just check associated counter, carry out problem identificatioin.
Visible, the monitoring scheme of current FACH Frame frame losing is after a kind of Holding Problem occurs or complains, the means of investigation, orientation problem.And when checking counter afterwards, only know in the period from counting to when checking, the FACH Frame totalframes that successfully decoded RACH Frame totalframes, the RACH Frame totalframes of decoding error and physical layer receive, and do not know the time point that frame losing occurs, thus do not know within the whole period yet, the Annual distribution situation that frame losing occurs.
Summary of the invention
(1) technical problem that will solve
The technical problem that first the present invention will solve is: how to provide a kind of scheme can determining the monitoring frame losing of the time point that frame losing occurs.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of method of monitoring frame losing, comprising the following steps:
First counter T1 and the second counter T2 is set, described first counter T1 is used for subscriber equipment in the process of core network access, counted by the number of the Random Access Channel RACH Frame of physical layer correct decoding, described second counter T2 is used for subscriber equipment in the process of core network access, and the number of the forward access channel FACH Frame that described physical layer receives counts;
Arrange the state C of three parameter: FACH, monitoring time t and alarm cycle T, T=Nt, N are positive integer;
If in every section of monitoring time t of alarm cycle T, the state C of FACH is abnormality FALSE, then carry out FACH Frame frame losing alarm in the moment of alarm cycle T, and outputting alarm information, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, and the numerical value of described second counter T2 is constant, then think that the state C of FACH is described abnormality FALSE.
Preferably, the initial condition of the state C of described FACH is normal condition TRUE, and after carrying out alarm, the state C of described FACH changes described normal condition TRUE into, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, the numerical value of described second counter T2 also increases, then think that the state C of FACH is described normal condition TRUE.
Preferably, described warning information comprises the time point that alarm occurs, and the numerical value of the first counter T1 and the second counter T2 described in the moment occurs in alarm.
Preferably, the state C of described FACH also comprises maintenance state MAINTAIN, if in monitoring time t, the numerical value of described first counter T1 is constant, and the numerical value of described second counter T2 is also constant, then think that the state C of FACH is described maintenance state MAINTAIN.
Preferably, the state C finite state machine of described FACH describes.
Preferably, described monitoring time t adjusts according to required monitoring sensitivity.
Preferably, the numerical value of N adjusts according to required alarm amount.
Present invention also offers the device of monitoring frame losing corresponding to a kind of and described method, comprising:
Counter setting unit, for arranging the first counter T1 and the second counter T2, described first counter T1 is used for subscriber equipment in the process of core network access, the number of the RACH Frame be properly decoded counts, described second counter T2 is used for subscriber equipment in the process of core network access, and the number of the forward access channel FACH Frame that physical layer receives counts;
Parameter set unit, for arranging state C, monitoring time t and the alarm cycle T of three parameter: FACH, T=Nt, N are positive integer;
Alarm decision unit, for whether carrying out alarm according to following principle judgement: if in every section of monitoring time t of alarm cycle T, the state C of FACH is abnormality FALSE, then carry out FACH Frame frame losing alarm in the moment of alarm cycle T, and outputting alarm information, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, and the numerical value of described second counter T2 is constant, then think that the state C of FACH is described abnormality FALSE.
Present invention also offers a kind of base station, comprise the device of above-mentioned monitoring frame losing.
Preferably, described base station is evolved base station eNode B.
(3) beneficial effect
Technique scheme tool has the following advantages: these two counters of a FACH Frame counter that the present invention receives by utilizing the RACH Frame counter that is properly decoded and physical layer, and designed 3 parameters, FACH frame losing problem is monitored and alarm, the time point that frame losing occurs can not only be determined, and, the adjustment as required to the sensitivity of monitoring and alarm amount can be realized.
Accompanying drawing explanation
Fig. 1 is random access procedure schematic diagram;
Fig. 2 is method flow diagram of the present invention;
Fig. 3 is alarm conditions schematic diagrames;
Fig. 4 is the finite state machine schematic diagram used in the present invention;
Fig. 5 ~ Fig. 7 is the time shaft schematic diagram that the inventive method can be described.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
The present invention is directed to user equipment (UE) in the process by Access Network core network access, monitor the problem of forward access channel FACH frame losing in physical layer and propose, Fig. 1 shows the process of Stochastic accessing, can find out, this process comprises following step:
1.UE Stochastic choice SYNC_UL(ascending pilot frequency code), and be sent to UpPCH(ascending pilot channel with the time of estimation and initial power) on;
2. evolved base station eNode B is after monitoring SYNC_UL, synchronous and power adjustment message is sent to FPACH (Fast Physical AccessChannel under the condition meeting the response time, physical access channel), the content sent is called FPACH Frame.If the response time more than certain subframe, then no longer responds UpPCH;
After 3.UE receives FPACH Frame, synchronous and performance number are set according to the instruction of this FPACH Frame, Random Access Channel RACH Frame is sent after fixing some subframes, carry out random access request, this RACH Frame is carried by PRACH (Physical RandomAccess Channel, Physical Random Access Channel);
After 4.eNode B receives random access request, issue FACH Frame, by the auxiliary Common Control Channel of SCCPCH() carrying, assigned resources, carries out authentication, finally completes access procedure.
Visible, in the random access procedure, RACH Frame and FACH Frame with the use of, when there is no FACH Frame when finding that there is RACH Frame, then show the frame losing of FACH Frame occurs.
As shown in Figure 2, the invention provides a kind of method of monitoring frame losing, application associated counter, by above-mentioned FACH Frame frame losing problem domination, comprises the following steps:
First counter T1 and the second counter T2 is set, described first counter T1 is used for subscriber equipment in the process of core network access, counted by the number of the RACH Frame of physical layer correct decoding, described second counter T2 is used for subscriber equipment in the process of core network access, and the number of the forward access channel FACH Frame that described physical layer receives counts;
Arrange the state C of three parameter: FACH, monitoring time t and alarm cycle T, T=Nt, N are positive integer;
If in every section of monitoring time t of alarm cycle T, the state C of FACH is abnormality FALSE, then carry out FACH Frame frame losing alarm in the moment of alarm cycle T, and outputting alarm information, comprise the time point that alarm occurs, the numerical value of the first counter T1 and the second counter T2 described in the moment occurs in alarm.Wherein, if in monitoring time t, the numerical value of described first counter T1 increases, and the numerical value of described second counter T2 is constant, then think that the state C of FACH is described abnormality FALSE.Above-mentioned alarm conditions as shown in Figure 3.
Wherein, the initial condition of the state C of described FACH is normal condition TRUE, and after carrying out alarm, the state C of described FACH changes described normal condition TRUE into, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, the numerical value of described second counter T2 also increases, then think that the state C of FACH is described normal condition TRUE.The state C of described FACH also comprises maintenance state MAINTAIN, if in monitoring time t, the numerical value of described first counter T1 is constant, and the numerical value of described second counter T2 is also constant, then think that the state C of FACH is described maintenance state MAINTAIN.The state C finite state machine of FACH describes, and when between three kinds of states, respective condition meets, can transform, as shown in Figure 4 from other two states to the state satisfied condition.
In the condition of above-mentioned trigger alerts, monitoring sensitivity can being regulated by regulating t value, regulating alarm amount by regulating N value.To illustrate below description:
A) N=1 is established, then T=t.When t is larger, sensitivity is low, and monitor less than duration shorter problem, also monitor the problem do not lined up less than time of origin and monitoring time, this situation as shown in Figure 5;
B) therefore need to reduce t, thus increase monitoring sensitivity, as shown in Figure 6;
C) N can be increased when needs reduce alarm amount.As N=2, as shown in Figure 7.
Can find out, frame losing monitoring method of the present invention can not only determine the time point that frame losing occurs, and, the adjustment as required to the sensitivity of monitoring and alarm amount can be realized.
Present invention also offers a kind of device of the monitoring frame losing corresponding with said method, comprising:
Counter setting unit, for arranging the first counter T1 and the second counter T2, described first counter T1 is used for subscriber equipment in the process of core network access, the number of the RACH Frame be properly decoded counts, described second counter T2 is used for subscriber equipment in the process of core network access, and the number of the forward access channel FACH Frame that physical layer receives counts;
Parameter set unit, for arranging state C, monitoring time t and the alarm cycle T of three parameter: FACH, T=Nt, N are positive integer;
Alarm decision unit, for whether carrying out alarm according to following principle judgement: if in every section of monitoring time t of alarm cycle T, the state C of FACH is abnormality FALSE, then carry out FACH Frame frame losing alarm in the moment of alarm cycle T, and outputting alarm information, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, and the numerical value of described second counter T2 is constant, then think that the state C of FACH is described abnormality FALSE.
Present invention also offers a kind of base station, comprise the device of above-mentioned monitoring frame losing.In the present embodiment, described base station is evolved base station eNode B.
As can be seen from the above embodiments, these two counters of a FACH Frame counter that the present invention receives by utilizing the RACH Frame counter that is properly decoded and physical layer, and designed 3 parameters, FACH frame losing problem is monitored and alarm, the time point that frame losing occurs can not only be determined, and, the adjustment as required to the sensitivity of monitoring and alarm amount can be realized.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Claims (10)
1. monitor a method for frame losing, it is characterized in that, comprise the following steps:
First counter T1 and the second counter T2 is set, described first counter T1 is used for subscriber equipment in the process of core network access, counted by the number of the Random Access Channel RACH Frame of physical layer correct decoding, described second counter T2 is used for subscriber equipment in the process of core network access, and the number of the forward access channel FACH Frame that described physical layer receives counts;
Arrange the state C of three parameter: FACH, monitoring time t and alarm cycle T, T=Nt, N are positive integer;
If in every section of monitoring time t of alarm cycle T, the state C of FACH is abnormality FALSE, then carry out FACH Frame frame losing alarm in the moment of alarm cycle T, and outputting alarm information, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, and the numerical value of described second counter T2 is constant, then think that the state C of FACH is described abnormality FALSE.
2. method as claimed in claim 1, it is characterized in that, the initial condition of the state C of described FACH is normal condition TRUE, and after carrying out alarm, the state C of described FACH changes described normal condition TRUE into, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, and the numerical value of described second counter T2 also increases, then think that the state C of FACH is described normal condition TRUE.
3. method as claimed in claim 1, is characterized in that, described warning information comprises the time point that alarm occurs, and the numerical value of the first counter T1 and the second counter T2 described in the moment occurs in alarm.
4. method as claimed in claim 2, it is characterized in that, the state C of described FACH also comprises maintenance state MAINTAIN, if in monitoring time t, the numerical value of described first counter T1 is constant, the numerical value of described second counter T2 is also constant, then think that the state C of FACH is described maintenance state MAINTAIN.
5. method as claimed in claim 4, it is characterized in that, the state C finite state machine of described FACH describes.
6. method as claimed in claim 1, it is characterized in that, described monitoring time t adjusts according to required monitoring sensitivity.
7. the method according to any one of claim 1 ~ 6, is characterized in that, the numerical value of N adjusts according to required alarm amount.
8. monitor a device for frame losing, it is characterized in that, comprising:
Counter setting unit, for arranging the first counter T1 and the second counter T2, described first counter T1 is used for subscriber equipment in the process of core network access, the number of the Random Access Channel RACH Frame be properly decoded counts, described second counter T2 is used for subscriber equipment in the process of core network access, and the number of the forward access channel FACH Frame that physical layer receives counts;
Parameter set unit, for arranging state C, monitoring time t and the alarm cycle T of three parameter: FACH, T=Nt, N are positive integer;
Alarm decision unit, for whether carrying out alarm according to following principle judgement: if in every section of monitoring time t of alarm cycle T, the state C of FACH is abnormality FALSE, then carry out FACH Frame frame losing alarm in the moment of alarm cycle T, and outputting alarm information, wherein, if in monitoring time t, the numerical value of described first counter T1 increases, and the numerical value of described second counter T2 is constant, then think that the state C of FACH is described abnormality FALSE.
9. a base station, is characterized in that, comprises device according to claim 8.
10. base station as claimed in claim 9, it is characterized in that, described base station is evolved base station eNode B.
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| CN101217339A (en) * | 2007-12-29 | 2008-07-09 | 华为技术有限公司 | A method, device and base station for frame dropping detection |
| CN101505494A (en) * | 2009-02-25 | 2009-08-12 | 华为技术有限公司 | Data processing method, base station and network control node |
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| US6487251B1 (en) * | 1999-08-30 | 2002-11-26 | Hughes Electronics Corporation | System and method for performing combined multi-rate convolutional coding |
| KR100938102B1 (en) * | 2006-08-18 | 2010-01-21 | 삼성전자주식회사 | Method and apparatus for rach signal transmission/reception |
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| CN101217339A (en) * | 2007-12-29 | 2008-07-09 | 华为技术有限公司 | A method, device and base station for frame dropping detection |
| CN101505494A (en) * | 2009-02-25 | 2009-08-12 | 华为技术有限公司 | Data processing method, base station and network control node |
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