CN103067968B - A kind of method preventing frame protocol step-out - Google Patents
A kind of method preventing frame protocol step-out Download PDFInfo
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- CN103067968B CN103067968B CN201110319079.0A CN201110319079A CN103067968B CN 103067968 B CN103067968 B CN 103067968B CN 201110319079 A CN201110319079 A CN 201110319079A CN 103067968 B CN103067968 B CN 103067968B
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Abstract
The invention provides a kind of method preventing FP OOF, the method includes: recipient is according to default measurement period, FP frame number N_rcv that FP frame number N_snd sent according to default statistics granularity statistics sender in current period and recipient are successfully received, and the result added up is notified to described sender, described statistics granularity is with base station as statistical unit, or with community as statistical unit, or with carrier wave as statistical unit；Described sender, according to the result added up, determines whether to there is Iub mouth congested；When there is Iub mouth and being congested, described sender, according to N_snd and N_rcv of described congested correspondence, calculates current drop probabilities, and when sending Frame, carries out random loss according to described drop probabilities.The present invention is used can effectively to reduce the probability of FP OOF.
Description
Technical field
The present invention relates to the data transmission technology in mobile communication system, particularly relate to one and prevent Frame Protocol (FP) frame
The method of step-out.
Background technology
In current TD-SCDMA system, base station (NodeB) and wireless network control (RNC) data surface are by Iub mouth
FP agreement interacts, and FP frame is divided into control frame and Frame two class, and wherein control frame carrying synchronization, stream control etc. are the most important
Information.Generally Iub mouth indifference transmission FP frame, if there is big data quantity burst service in short-term, has exceeded Iub mouth configuration band
Width, the transport layer of NodeB and RNC side can lose FP frame at random, if lose is synchronous control frame, then likely results in FP and loses
Step, user discharges extremely.
A kind of method that can solve above-mentioned FP step-out problem is not yet proposed at present.
Summary of the invention
In view of this, present invention is primarily targeted at a kind of method preventing FP OOF of offer, this can effectively reduce
The appearance of FP OOF problem.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A kind of method preventing frame protocol step-out, the method comprises the following steps:
A, recipient are according to default measurement period, according to default statistics granularity statistics sender in current period
FP frame number N_snd sent and FP frame number N_rcv that is successfully received of recipient, and the result added up is notified to
Described sender, described statistics granularity is with base station as statistical unit, or with community as statistical unit, or with carrier wave for statistics
Unit；
B, described sender, according to the result added up, determine whether to there is Iub mouth congested；
C, when there is Iub mouth and being congested, described sender according to N_snd and N_rcv of described congested correspondence, calculates current
Drop probabilities, and send Frame time, carry out random loss according to described drop probabilities.
In sum, the method preventing FP OOF that the present invention proposes, by being monitored congested, congested in generation
Time, then only Frame is carried out random loss, as such, it is possible to be prevented effectively from existing method due to congested caused control frame
Lose, such that it is able to effectively reduce the appearance of FP OOF.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, the most right
The present invention is described in further detail.
The core concept of the present invention is: detection Iub port transmission situation, if it occur that congested, then lose number with certain probability
According to frame, it is ensured that control frame prioritised transmission.So, both can guarantee that the normal mutual of chain of command, the re-transmission machine of high level can have been utilized again
System maintains data plane communication, avoids burst service, reduces the probability of FP step-out.
In actual applications, the present invention can realize in NodeB and RNC side, and so, up-downgoing can prevent FP from losing simultaneously
Step, it is also possible to one of which network element realizes, unidirectional prevents FP step-out.
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one.As it is shown in figure 1, this embodiment comprises the following steps:
Step 101, recipient are according to default measurement period, according to default statistics granularity statistics in current period
FP frame number N_rcv that FP frame number N_snd of sender's transmission and recipient are successfully received, and the N_ that will be added up
Snd and N_rcv notifies to described sender.
Here, the FP frame that sender sends within the statistics certain time of sending side, then add up in reception side and be successfully received
FP frame so that whether sender judges currently to occur congested based on this.
Described statistics granularity is base station level (i.e. with base station as statistical unit), or cell-level, or carrier level.
The size of described measurement period, it is the least that this value is arranged, and overhead can be made excessive, setting too big, then can shadow
Ring and judge congested promptness, specifically can be configured according to actual needs by emulation by those skilled in the art.
It is preferred that described recipient is by NodeB application protocol (NBAP) privately owned frame, the result added up is notified to institute
State sender.
It is also preferred that the left described privately owned frame field includes: frame check field, frame type field, the privately owned control frame in user face identify
Field, subframe type field and RNC add up FP frame the digital section received.
Further, described privately owned frame can use the form shown in table 1:
Table 1
Step 102, described sender, according to the result of described statistics, determine whether to there is Iub mouth congested.
It is preferred that determine whether there is congested method can be:
When minimum frame number N_min that described N_snd comes into force more than the statistics preset, and described N_rcv and described N_snd
Ratio less than the Iub mouth congestion packet loss ratio preset time, determine that to there is currently Iub mouth congested.
Here, those skilled in the art can set according to actual needs and the concrete condition of aforesaid statistical granularity
Putting the appropriate value of N_min, in actual applications, statistics granularity is the biggest, then N_min is the biggest, and the least meeting that this value is arranged is led
Cause not statistical uncertainty really, then can affect the effect according to congestion control step-out too greatly.Such as, if measurement period is 5s, then Nmin
Could be arranged to carrier level: 1000, cell-level 1000* variable number, the number of NE-level 1000* network element intercarrier.
Step 103, when there is Iub mouth and being congested, described sender according to N_snd and N_rcv of described congested correspondence, meter
Current drop probabilities, and when sending Frame, carry out random loss according to described drop probabilities.
Here, by the most actively abandoning Frame, ensure the preferential transmission of control frame, thus user can be reduced and extremely release
Put probability, promote Key Performance Indicator (KPI).
It is preferred that according to P=N_rcv/N_snd*Alpha*100% described drop probabilities P can calculate, wherein,
Alpha is the default configuration coefficients for determining actively packet loss size, and specifically those skilled in the art can be led to as required
Cross emulation and obtain suitable Alpha value.
If it is preferred that the statistics granularity in step 201 is base station level, then when described sender is described in this step
When sending Frame on all carrier waves of the base station of congested correspondence, carry out random loss according to described drop probabilities；If it is described
Statistics granularity is cell-level, then sender described in this step sends number on all carrier waves of the community of described congested correspondence
During according to frame, carry out random loss according to described drop probabilities；If described statistics granularity is carrier level, then this step is worked as institute
State sender when sending Frame on the carrier wave of described congested correspondence, carry out random loss according to described drop probabilities.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (10)
1. the method preventing frame protocol step-out, it is characterised in that the method comprises the following steps:
A, recipient, according to default measurement period, send according to default statistics granularity statistics sender in current period
FP frame number N_snd and FP frame number N_rcv that is successfully received of recipient, and the result added up is notified to described
Sender, described statistics granularity is with base station as statistical unit, or with community as statistical unit or single with carrier wave for statistics
Position；
B, described sender, according to the result added up, determine whether to there is Iub mouth congested；
C, when there is Iub mouth and being congested, described sender, according to N_snd and N_rcv of described congested correspondence, calculates current losing
Bag probability, and when sending Frame, carry out random loss according to described drop probabilities.
Method the most according to claim 1, it is characterised in that when described N_snd is more than the statistics preset in described step b
Minimum frame number N_min come into force, and the ratio of described N_snd and described N_rcv is less than the Iub mouth congestion packet loss ratio preset
Time, determine that to there is currently Iub mouth congested.
Method the most according to claim 1, it is characterised in that in step c according to
Calculating described drop probabilities P, wherein, Alpha is the default configuration coefficients for determining actively packet loss size.
Method the most according to claim 1, it is characterised in that when described statistics granularity is base station level, described step c
In when described sender sends Frame on all carrier waves of the base station of described congested correspondence, enter according to described drop probabilities
Row random loss.
Method the most according to claim 1, it is characterised in that when described statistics granularity is cell-level, described step c
In when described sender sends Frame on all carrier waves of the community of described congested correspondence, enter according to described drop probabilities
Row random loss.
Method the most according to claim 1, it is characterised in that when described statistics granularity is carrier level, described step c
In when described sender sends Frame on the carrier wave of described congested correspondence, lose at random according to described drop probabilities
Bag.
Method the most according to claim 1, it is characterised in that described sender is base station NodeB, described recipient is nothing
Line network controller RNC.
Method the most according to claim 1, it is characterised in that described sender is radio network controller (RNC), described in connect
Debit is base station.
9. according to the either method described in claim 1 to 8, it is characterised in that described recipient passes through NodeB application protocol
The result added up is notified to described sender by the privately owned frame of NBAP.
Method the most according to claim 9, it is characterised in that described privately owned frame field includes: frame check field, frame class
Type-word section, user face privately owned control frame identification field, subframe type field and RNC add up FP frame the digital section received.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110319079.0A CN103067968B (en) | 2011-10-19 | 2011-10-19 | A kind of method preventing frame protocol step-out |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110319079.0A CN103067968B (en) | 2011-10-19 | 2011-10-19 | A kind of method preventing frame protocol step-out |
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| Publication Number | Publication Date |
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| CN103067968A CN103067968A (en) | 2013-04-24 |
| CN103067968B true CN103067968B (en) | 2016-08-10 |
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| CN201110319079.0A Expired - Fee Related CN103067968B (en) | 2011-10-19 | 2011-10-19 | A kind of method preventing frame protocol step-out |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111865716B (en) * | 2020-06-30 | 2023-07-18 | 新华三信息技术有限公司 | Port congestion detection method, device, equipment and machine-readable storage medium |
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| CN1913489A (en) * | 2006-08-17 | 2007-02-14 | 华为技术有限公司 | Method of flow controlling for IUB-interface |
| CN1964292A (en) * | 2006-09-29 | 2007-05-16 | Ut斯达康通讯有限公司 | A method used to detect and feedback frame loss ratio of lub FP frame based on IP transmission |
| CN101321120A (en) * | 2007-06-08 | 2008-12-10 | 中兴通讯股份有限公司 | Stream media business channel emigration method and device |
| CN101558612A (en) * | 2006-09-28 | 2009-10-14 | 诺基亚西门子通信有限公司 | Controlling congestion detection in HSDPA systems |
| CN101854660A (en) * | 2009-03-30 | 2010-10-06 | 大唐移动通信设备有限公司 | Congestion control method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001063858A1 (en) * | 2000-02-24 | 2001-08-30 | Zarlink Semiconductor V.N. Inc. | Unified algorithm for frame scheduling and buffer management in differentiated services networks |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913489A (en) * | 2006-08-17 | 2007-02-14 | 华为技术有限公司 | Method of flow controlling for IUB-interface |
| CN101558612A (en) * | 2006-09-28 | 2009-10-14 | 诺基亚西门子通信有限公司 | Controlling congestion detection in HSDPA systems |
| CN1964292A (en) * | 2006-09-29 | 2007-05-16 | Ut斯达康通讯有限公司 | A method used to detect and feedback frame loss ratio of lub FP frame based on IP transmission |
| CN101321120A (en) * | 2007-06-08 | 2008-12-10 | 中兴通讯股份有限公司 | Stream media business channel emigration method and device |
| CN101854660A (en) * | 2009-03-30 | 2010-10-06 | 大唐移动通信设备有限公司 | Congestion control method and device |
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