CN103067968A - Method of preventing frame protocol frames from being out-of-frame - Google Patents
Method of preventing frame protocol frames from being out-of-frame Download PDFInfo
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- CN103067968A CN103067968A CN2011103190790A CN201110319079A CN103067968A CN 103067968 A CN103067968 A CN 103067968A CN 2011103190790 A CN2011103190790 A CN 2011103190790A CN 201110319079 A CN201110319079 A CN 201110319079A CN 103067968 A CN103067968 A CN 103067968A
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Abstract
The invention provides a method of preventing frame protocol (FP) frames from being out-of-frame. The method includes the steps that a receiver counts the number of the FP frames N_snd which are sent by a sender in the present period according to a preset statistical cycle and preset statistical granularity, a receiver successfully receives the number of the FP frames N_rcv, the statistical result is informed on the sender, the statistics granularity uses a base station, a community or a carrier wave as the statistical unit, the sender determines whether Iub interface blocking exists at the present according to the statistical result, the sender figures out the present packet loss rate according to the N_snd and the N_rcv corresponding to the blocking when the Iub interface blocking exists, random packet dropping is conduct according to the packet loss rate when data frames are sent. By adopting the method of preventing the FP frames from being out-of-frame, possibility of falling out step of the FP frames can be effectively reduced.
Description
Technical field
The present invention relates to the data transmission technology in the mobile communication system, particularly relate to a kind of method that prevents Frame Protocol (FP) OOF.
Background technology
In the present TD-SCDMA system, base station (NodeB) and wireless network control (RNC) data surface are undertaken alternately by the FP agreement of Iub mouth, the FP frame is divided into control frame and Frame two classes, wherein control frame carrying synchronously, the information of the outbalance such as Flow Control.Usually Iub mouth indifference transmission FP frame if there is big data quantity burst service in short-term, has surpassed Iub mouth configured bandwidth, the transport layer of NodeB and RNC side can be lost the FP frame at random, if what lose is synchronous control frame, then probably cause the FP step-out, the user discharges unusually.
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, main purpose of the present invention is to provide a kind of method of the FP of preventing OOF, and this can effectively reduce the appearance of FP OOF problem.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of method that prevents the frame protocol step-out, the method may further comprise the steps:
A, recipient are according to default measurement period, the FP frame number N_rcv that the FP frame number N_snd that sends according to default statistics granularity statistics transmit leg in current period and recipient successfully receive, and the result who adds up notified to described transmit leg, described statistics granularity is for taking the base station as statistical unit, or take the residential quarter as statistical unit, or take carrier wave as statistical unit;
B, described transmit leg determine that according to the result who adds up the current Iub mouth that whether exists is congested;
C, when existing the Iub mouth congested, described transmit leg calculates current drop probabilities according to N_snd and the N_rcv of described congested correspondence, and when sending Frame, carries out random loss according to described drop probabilities.
In sum, the method that prevents the FP OOF that the present invention proposes, by monitoring congested, when generation is congested, then only Frame is carried out random loss, like this, can effectively avoid in the existing method because the losing of the control frame due to congested, thereby can effectively reduce the appearance of FP OOF.
Description of drawings
Fig. 1 is the schematic flow sheet of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: detect Iub port transmission situation, if occur congestedly, then lose Frame with certain probability, guarantee the control frame prioritised transmission.Like this, can guarantee the normal mutual of chain of command, can utilize again high-rise retransmission mechanism to keep data surface communication, avoid burst service, reduce the probability of FP step-out.
In actual applications, the present invention can realize that like this, up-downgoing can prevent the FP step-out simultaneously in NodeB and RNC side, also can be only therein a network element realize the unidirectional FP step-out that prevents.
Fig. 1 is the schematic flow sheet of the embodiment of the invention one.As shown in Figure 1, this embodiment may further comprise the steps:
Here, the FP frame that transmit leg sends in transmitter side statistics certain hour is then added up the FP frame that successfully receives at receiver side so that transmit leg based on this judge current whether occur congested.
Described statistics granularity is base station level (namely being statistical unit take the base station), or cell-level, or carrier level.
The size of described measurement period, it is too little that this value arranges, and can make overhead excessive, and setting too large then can affect and judge congested promptness, specifically can be arranged according to actual needs by emulation by those skilled in the art.
Preferably, described recipient notifies the result who adds up to described transmit leg by the privately owned frame of NodeB application protocol (NBAP).
Better, described privately owned frame field comprises: the FP frame digital section that frame check field, frame type field, the privately owned control frame identification field of user's face, subframe type field and RNC statistics receive.
Further, described privately owned frame can adopt the form shown in the table 1:
Table 1
Preferably, determine whether to exist congested method can for:
The minimum frame number N_min that comes into force greater than default statistics as described N_snd, and the ratio of described N_rcv and described N_snd determines that the current Iub of existence mouth is congested during less than the Iub mouth congestion packet loss ratio preset.
Here, those skilled in the art can be according to actual needs and the concrete condition of aforementioned statistics granularity, the suitable value of N_min is set, in actual applications, the statistics granularity is larger, then N_min is larger, and the too little meeting that this value arranges causes not statistical uncertainty true, then can affect too greatly the effect according to the congestion control step-out.For example, if measurement period is 5s, then Nmin can be set to carrier level: 1000, and cell-level 1000* carrier wave number, the number of NE-level 1000* network element intercarrier.
Here, by only initiatively abandoning Frame, guarantee the preferential transmission of control frame, unusually discharge probability thereby can reduce the user, promote Key Performance Indicator (KPI).
Preferably, can according to P=N_rcv/N_snd*Alpha*100%, calculate described drop probabilities P, wherein, Alpha determines the initiatively configuration coefficients of packet loss size for default being used for, and those skilled in the art can obtain suitable Alpha value by emulation as required particularly.
Preferably, if the statistics granularity in the step 201 is the base station level, then in this step when described transmit leg all carrier waves in the base station of described congested correspondence send Frames, carry out random loss according to described drop probabilities; If described statistics granularity is cell-level, when then all carrier waves in the residential quarter of described congested correspondence of transmit leg described in this step send Frame, carry out random loss according to described drop probabilities; If described statistics granularity is carrier level, then in this step when described transmit leg when the carrier wave of described congested correspondence sends Frame, carry out random loss according to described drop probabilities.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. method that prevents the frame protocol step-out is characterized in that the method may further comprise the steps:
A, recipient are according to default measurement period, the FP frame number N_rcv that the FP frame number N_snd that sends according to default statistics granularity statistics transmit leg in current period and recipient successfully receive, and the result who adds up notified to described transmit leg, described statistics granularity is for taking the base station as statistical unit, or take the residential quarter as statistical unit, or take carrier wave as statistical unit;
B, described transmit leg determine that according to the result who adds up the current Iub mouth that whether exists is congested;
C, when existing the Iub mouth congested, described transmit leg calculates current drop probabilities according to N_snd and the N_rcv of described congested correspondence, and when sending Frame, carries out random loss according to described drop probabilities.
2. method according to claim 1, it is characterized in that, the minimum frame number N_min that comes into force greater than default statistics as described N_snd among the described step b, and the ratio of described N_snd and described N_rcv determines that the current Iub of existence mouth is congested during less than the Iub mouth congestion packet loss ratio preset.
3. method according to claim 1 is characterized in that, according to P=N_rcv/N_snd*Alpha*100%, calculates described drop probabilities P among the step c, and wherein, Alpha determines the initiatively configuration coefficients of packet loss size for default being used for.
4. method according to claim 1, it is characterized in that, when described statistics granularity is the base station level, when described transmit leg all carrier waves in the base station of described congested correspondence send Frame, carry out random loss according to described drop probabilities among the described step c.
5. method according to claim 1, it is characterized in that, when described statistics granularity is cell-level, when described transmit leg all carrier waves in the residential quarter of described congested correspondence send Frame, carry out random loss according to described drop probabilities among the described step c.
6. method according to claim 1 is characterized in that, when described statistics granularity is carrier level, among the described step c when described transmit leg when the carrier wave of described congested correspondence sends Frame, carry out random loss according to described drop probabilities.
7. method according to claim 1 is characterized in that, described transmit leg is base station node B, and described recipient is radio network controller (RNC).
8. method according to claim 1 is characterized in that, described transmit leg is radio network controller (RNC), and described recipient is the base station.
9. according to claim 1 to 8 described either method, it is characterized in that described recipient notifies the result who adds up to described transmit leg by the privately owned frame of NodeB application protocol NBAP.
10. method according to claim 9 is characterized in that, described privately owned frame field comprises: the FP frame digital section that frame check field, frame type field, the privately owned control frame identification field of user's face, subframe type field and RNC statistics receive.
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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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| CN201110319079.0A CN103067968B (en) | 2011-10-19 | 2011-10-19 | A kind of method preventing frame protocol step-out |
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| CN103067968A true CN103067968A (en) | 2013-04-24 |
| CN103067968B CN103067968B (en) | 2016-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111865716A (en) * | 2020-06-30 | 2020-10-30 | 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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| 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 |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416633A (en) * | 2000-02-24 | 2003-05-07 | 加林克半导体V.N.有限公司 | Unified algorithm for frame scheduling and buffer management in differentiated services networks |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111865716A (en) * | 2020-06-30 | 2020-10-30 | 新华三信息技术有限公司 | Port congestion detection method, device, equipment and machine-readable storage medium |
| 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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