CN1416232A - Method for controlling service priority for tunneling data packet in general packet wireless service - Google Patents
Method for controlling service priority for tunneling data packet in general packet wireless service Download PDFInfo
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- CN1416232A CN1416232A CN01132071A CN01132071A CN1416232A CN 1416232 A CN1416232 A CN 1416232A CN 01132071 A CN01132071 A CN 01132071A CN 01132071 A CN01132071 A CN 01132071A CN 1416232 A CN1416232 A CN 1416232A
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Abstract
The received data packets of the general packet wireless service tunnel protocol are sorted to separate out the T-PDU data packets, the message packets and the error indication data packets. When the highest priority treatment being carried out, the message packet is put to the highest priority queue. The forwarding context of the T-PDU data is checked so as to obtain the prearranged priority of the T-PDU data. The error indication data packets are filtered, the packets in certain ratio are processed, and the others are discarded. By using the invention, the single interface board can accept the load data of the control surface and the user surface of the GPRS tunnel protocol. The high priority and the high reliability are guaranteed for the data of the control surface.
Description
Technical field
The present invention relates to CDMA mobile communication systems, relate in particular to tunneling data bag service priority control method in the GPRS (GPRS).
Background technology
The notion of quality of service (QOS) is widely used in the existing communication technology, and its service that is primarily aimed at communication equipment carrying proposes and do not relate to the control messages stream of communication equipment self.This separates the service data of control messages and user's face physically with traditional communication protocol and is undivided, and control messages stream can be transmitted on the bearing link of limit priority.But in the GPRS Tunnel Protocol agreement, because it is a tunnel protocol, its transmission bearer makes above-mentioned quality of service control method have following problem in UDP/IP (User Datagram Protoco (UDP)/Internet protocol) network:
If the chain of command data of 1 general packet wireless service tunnel protocol and user face data are handled on same interface, because the chain of command message of general packet wireless service tunnel protocol is not carried out the reliability decrease that priority guarantees to make chain of command message.Losing in a large number of chain of command data can make the service quality of service universal grouping wireless business supporting node (SGSN) descend significantly when apparatus overload.
If 2 use special purpose interface device processes chain of command data, because the chain of command data traffic is little, and present interfaces device processes ability is strong, is directed at the service efficiency that reduces interface equipment.
3, if the Indication message of makeing mistakes in can't separate users face data handle the Indication message of makeing mistakes and can take a large amount of device resources.Restart etc. under the specified conditions and send when makeing mistakes Indication message in a large number at opposite equip. like this, the SGSN equipment of local terminal can collapse because of resource exhaustion.
Summary of the invention
Problem at above-mentioned quality of service control method exists the invention provides tunneling data bag service priority control method in a kind of GPRS, and this control method is simple, can improve the stability and the efficient of equipment.Make equipment when receiving the unusual message of backbone network, data storm, guarantee that system normally moves under the processing pressure more much bigger at full capacity than system, assurance service message and high priority packets are not lost.
In order to address the above problem, tunneling data bag service priority control method is carried out as follows in the GPRS that the present invention adopts:
A, the general packet wireless service tunnel protocol packet that receives is classified, isolate T-PDU packet, message bag and the designation data bag of makeing mistakes;
B, the message bag is carried out limit priority handle, put into highest-priority queue;
C, to its forwarding contexts of T-PDU packet inspection, obtain the priority that it is decided through consultation in advance;
D, the designation data bag of makeing mistakes is filtered, handle by a certain percentage, all the other are abandoned.
Among the described step b, when the message bag being carried out the limit priority processing, tackle all message bags and handle.
Among the described step c, in packet is checked, according to priority incorporate packet into respective queue and also the quick indexing key is together deposited in for handling use again, as the approaching packet discard from high to low that transships according to priority of disposal ability.
In the described steps d, when the designation data bag of makeing mistakes is filtered, filter in 10% ratio.
In packet is handled, handle to low from the priority height in batches.
Packet is being carried out in the batch processing, and each data packet number of handling need decide according to the disposal ability and the scheduling mode of system.
Owing to adopted above-mentioned control method, the present invention has following advantage:
1, general packet radio service tunneling protocol for control plane (GTP-C) and general packet wireless service tunnel protocol user face data can be on same interface board, carried, and the high priority and the high reliability of general packet radio service tunneling protocol for control plane (GTP-C) data can be guaranteed.Even when the data storm occurring, the chain of command data still can in time be received and reliable treatments and user face data will according to priority be dropped from low to high.
2, when occurring makeing mistakes the Indication message storm, regular traffic message and data are handled because of the Indication message of makeing mistakes in a large number is filtered.
3, can give the use of general packet wireless service tunnel protocol user face to exhaustless bandwidth of general packet radio service tunneling protocol for control plane (GTP-C) message and disposal ability, the service efficiency of equipment is provided.
Description of drawings
Fig. 1 is quality of service (QOS) capability analysis simplified model schematic diagram.
Embodiment
The guiding theory of tunneling data bag service priority control method is to the chain of command message of general packet wireless service tunnel protocol and the non-T-PDU of general packet wireless service tunnel protocol user face (clean lotus in the GTP-U packet in the GPRS of the present invention; Being clean lotus in the general packet wireless service tunnel protocol user plane protocol packet) message all carries out preanalysis; Make itself and T-PDU packet together carry out quality control of the business; To process to strengthen the performance of system by increasing a small amount of system; Its concrete step is seen as follows
A, the general packet wireless service tunnel protocol packet that receives is classified, isolate T-PDU packet, message bag and the designation data bag of makeing mistakes, in classification, can use the identification of key characteristic value or directly analyze classes of messages type-word in the packet.
B, the message bag is carried out limit priority handle, put into highest-priority queue, when enough bandwidth had been reserved in the processing that is controlled to be the message bag when dynamic resource, the processing of message bag can not be subjected to the influence of external data storm.Usually the processing load when dynamic reporting message is A% (100% is maximum), and dynamic resource control part branch adjusts user's access quantity automatically, and the bandwidth that guarantees A%*0.2 is that the processing of message bag is reserved,
When A%*1.2＞80%, the dynamic resource control section will carry out load sharing to Message Processing.
And the prerequisite of above processing is to follow the tracks of the SGSN system running state by the service priority control method.
C, to its forwarding contexts of T-PDU packet inspection, obtain the priority that it is decided through consultation in advance.
D, the designation data bag of makeing mistakes is filtered, handle by a certain percentage, all the other are abandoned.
Among the described step b, when the message bag being carried out the limit priority processing, tackle all message bags and handle.
Among the described step c, in packet is checked, according to priority incorporate packet into respective queue and also the quick indexing key is together deposited in for handling use again, as the approaching packet discard from high to low that transships according to priority of disposal ability.
See also shown in Figure 1, by BUFFER be operating as the basis QOS is analyzed as follows:
GTP tunnel protocol processes system to IP and QOS formation equiprobability scheduling can analyze and draw, packet loss will have in the QOS formation in above model, 2/3 packet is dropped, 1/3 packet is forwarded, the maximum QOS ability of system is when reaching disposal ability 150%, 1/3 high instrument level packet earlier is forwarded, and the processing load of hypothesis IP formation+Interrupt Process is A%, the processing load of QOS formation is B%, each normal capacity of handling is the T bag, assurance accounts for overall budget and counts C% and implement high priority packets and do not lose, then:
Can get by T*S/ (T+T* (1-S) * B/A)=C+100:
The each pack processing number of QOS:
QOS.perien＝T*C(A+B)/(100A+C*B)
Number is handled in the IP formation at every turn:
IP.perien＝T*(1+(100-C)/(100*A/B+C)
Work as C=100, QOS.perlen=T, IP.perlen=T
Work as C=1, QOS.perlen=T* (A+B)/(100A+B)
IP.perlen＝T*(1+99/(100*A/B+1))＜100T
Work as C=0, QOS.perlen=0
IP.perlen＝T*(1+A/B)
The i.e. ratio that accounts for according to different high-priority packets: 0＜QOS.perlen＜=T, T＜=IP.perlen＜=T* (1B/A)
Then system's load that can bear is (1+100-C)/(100*A/B+C) 100% of disposal ability
A prerequisite is arranged here, that is: each treating capacity of Interrupt Process is identical with the IP queue processing.This mainly be based on as the each treating capacity of Interrupt Process less than the IP queue processing then system also do not have the oepration at full load bottom just to begin packet loss, then the IP formation will packet loss greater than the IP queue processing as the each treating capacity of Interrupt Process when this mainly is based on, and the packet loss of analyzing at random through QOS to occur at bottom be optimal selection, therefore identical each treating capacity design of Interrupt Process with the IP queue processing.By this method design buffer memory, the extra process load that the SGSN system increased when the packet that receives when system transshipped is minimum.
B/A is big more as can be seen from above analysis, and QOS priority performance is good more, and actual is exactly that the may command resource is many more.The control that QOS just is described is more early good more.Can bear 150% system loading by the said system model under the prerequisite of the high priority packets that guarantees 1/3 flow, effect is fine.
Therefore will strengthen the priority treatment assurance ability of SGSN system greatly by this step process to high priority packets.When also comprehensively advancing profit to Message Processing, we also can will get identical effect.
In the described steps d, when the designation data bag of makeing mistakes is filtered, filter in 10% ratio, the indication that ought make mistakes like this makes existing flow double suddenly, and system loading is no more than at 150% o'clock, and the normal process of SGSN system can not be affected.
After increasing Q-character in the sign at packet, can also filter out the invalid data bag as the indication that makes mistakes.
In packet is handled, handle to low from the priority height in batches.
Packet is being carried out in the batch processing, and each data packet number of handling need decide according to the disposal ability and the scheduling mode of system.
In sum, the present invention has the following advantages:
General packet radio service tunneling protocol for control plane (GTP-C) and general packet wireless service tunnel protocol user face data can be on same interface board, carried, and the high priority and the high reliability of general packet radio service tunneling protocol for control plane (GTP-C) data can be guaranteed.Even when the data storm occurring, the chain of command data still can in time be received and reliable treatments and user face data will not abandon.Promptly press above-mentioned QOS capability analysis simplified model and analysis as can be known:
When the general packet radio service tunneling protocol for control plane (GTP-C) packet accounted for total data bag ratio and is 10%, the data storm of 180% system loading can bear in system.
When the general packet radio service tunneling protocol for control plane (GTP-C) packet accounted for total data bag ratio and is 30%, the data storm of 150% system loading can bear in system.
And common system design, performance is higher by about 20% than model.
When occurring makeing mistakes the Indication message storm, regular traffic message and data are handled because of the Indication message of makeing mistakes in a large number is filtered.Promptly by above-mentioned analysis result, A/B=1/2 is got in consider the to make mistakes filtration of Indication message, then: when system receives makeing mistakes during Indication message of regular traffic message, the identical speed of data, and system loading reaches at 150% o'clock, and regular traffic message, packet still can not lost and finish processing.
Can give the use of general packet wireless service tunnel protocol user face to exhaustless bandwidth of general packet radio service tunneling protocol for control plane (GTP-C) message and disposal ability, improve the service efficiency of tunnel protocol treatment facility.
Claims (6)
1, tunneling data bag service priority control method in a kind of GPRS is characterized in that this control method is carried out as follows:
A, the general packet wireless service tunnel protocol packet that receives is classified, isolate T-PDU packet, message bag and the designation data bag of makeing mistakes;
B, the message bag is carried out limit priority handle, put into highest-priority queue;
C, to its forwarding contexts of T-PDU packet inspection, obtain the priority that it is decided through consultation in advance;
D, the designation data bag of makeing mistakes is filtered, handle by a certain percentage, all the other are abandoned.
2, tunneling data bag service priority control method in the GPRS as claimed in claim 1 is characterized in that: among the described step b, when the message bag being carried out the limit priority processing, tackle all message bags and handle.
3, tunneling data bag service priority control method in the GPRS as claimed in claim 1, it is characterized in that: among the described step c, in packet is checked, according to priority incorporating packet into respective queue also together deposits the quick indexing key in for handling use again, as the approaching packet discard from high to low that transships according to priority of disposal ability.
4, tunneling data bag service priority control method in the GPRS as claimed in claim 1 is characterized in that: in the described steps d, when the designation data bag of makeing mistakes is filtered, filter in 10% ratio.
5, tunneling data bag service priority control method in the GPRS as claimed in claim 3 is characterized in that: in packet is handled, handle to low from the priority height in batches.
6, tunneling data bag service priority control method in the GPRS as claimed in claim 5, it is characterized in that: packet is being carried out in the batch processing, and each data packet number of handling need decide according to the disposal ability and the scheduling mode of system.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011320710A CN1221099C (en) | 2001-10-31 | 2001-10-31 | Method for controlling service priority for tunneling data packet in general packet wireless service |
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| CNB011320710A CN1221099C (en) | 2001-10-31 | 2001-10-31 | Method for controlling service priority for tunneling data packet in general packet wireless service |
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| CN1221099C CN1221099C (en) | 2005-09-28 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393066C (en) * | 2003-09-04 | 2008-06-04 | 株式会社Ntt都科摩 | Packet-priority control apparatus and method thereof |
| CN100448227C (en) * | 2005-08-30 | 2008-12-31 | 杭州华三通信技术有限公司 | Business flow idnetifying method |
| CN101141445B (en) * | 2006-09-08 | 2010-10-13 | 华为技术有限公司 | Transmission method and sending terminal equipment of transmission unit |
| CN101110835B (en) * | 2007-09-06 | 2010-12-29 | 中兴通讯股份有限公司 | Distribution method for sharing inceptive filtering rule set |
| US8103161B2 (en) | 2005-01-01 | 2012-01-24 | Huawei Technologies Co., Ltd. | Method, device and system for group optical channel shared protection |
| CN103718488A (en) * | 2011-08-01 | 2014-04-09 | 三星电子株式会社 | Method and system for scalable information packetization and aggregation for information transmission in communication networks |
| CN108012338A (en) * | 2016-11-02 | 2018-05-08 | 中兴通讯股份有限公司 | Data transmission method, device, application and base station |
| CN108738047A (en) * | 2017-04-21 | 2018-11-02 | 网件公司 | Robust control plane for multi-band wireless network system management |
| CN110121865A (en) * | 2016-12-22 | 2019-08-13 | 诺基亚通信公司 | Control and user plane framework |
-
2001
- 2001-10-31 CN CNB011320710A patent/CN1221099C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393066C (en) * | 2003-09-04 | 2008-06-04 | 株式会社Ntt都科摩 | Packet-priority control apparatus and method thereof |
| US8103161B2 (en) | 2005-01-01 | 2012-01-24 | Huawei Technologies Co., Ltd. | Method, device and system for group optical channel shared protection |
| CN100448227C (en) * | 2005-08-30 | 2008-12-31 | 杭州华三通信技术有限公司 | Business flow idnetifying method |
| CN101141445B (en) * | 2006-09-08 | 2010-10-13 | 华为技术有限公司 | Transmission method and sending terminal equipment of transmission unit |
| CN101110835B (en) * | 2007-09-06 | 2010-12-29 | 中兴通讯股份有限公司 | Distribution method for sharing inceptive filtering rule set |
| CN103718488B (en) * | 2011-08-01 | 2018-06-22 | 三星电子株式会社 | For the expansible information package of information transmission and the method and system of polymerization in communication network |
| CN103718488A (en) * | 2011-08-01 | 2014-04-09 | 三星电子株式会社 | Method and system for scalable information packetization and aggregation for information transmission in communication networks |
| CN108012338A (en) * | 2016-11-02 | 2018-05-08 | 中兴通讯股份有限公司 | Data transmission method, device, application and base station |
| CN110121865A (en) * | 2016-12-22 | 2019-08-13 | 诺基亚通信公司 | Control and user plane framework |
| CN110121865B (en) * | 2016-12-22 | 2022-01-11 | 诺基亚通信公司 | Method, apparatus, and computer-readable medium for control and user plane |
| CN108738047A (en) * | 2017-04-21 | 2018-11-02 | 网件公司 | Robust control plane for multi-band wireless network system management |
| US10986626B2 (en) | 2017-04-21 | 2021-04-20 | Netgear, Inc. | Robust control plane for management of a multi-band wireless networking system |
| US10999834B2 (en) | 2017-04-21 | 2021-05-04 | Netgear, Inc. | Method and apparatus for generating and maintaining an accurate network map in a communications network |
| US11229023B2 (en) | 2017-04-21 | 2022-01-18 | Netgear, Inc. | Secure communication in network access points |
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|---|---|
| CN1221099C (en) | 2005-09-28 |
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