CN102546378A - Evolved packet system (EPS) transmission flow template (TFT) matching method - Google Patents
Evolved packet system (EPS) transmission flow template (TFT) matching method Download PDFInfo
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- CN102546378A CN102546378A CN2010106215422A CN201010621542A CN102546378A CN 102546378 A CN102546378 A CN 102546378A CN 2010106215422 A CN2010106215422 A CN 2010106215422A CN 201010621542 A CN201010621542 A CN 201010621542A CN 102546378 A CN102546378 A CN 102546378A
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Abstract
The invention discloses an evolved packet system (EPS) transmission flow template (TFT) matching method, which comprises the following steps that: after a packet data network (PDN) connection is built, a system distributes TFT_BUFFER comprising 256 block memories for the PDN connection; each block memory fixedly corresponds to one TFT priority; a TFT filter of the PDN connection is stored into the TFT_BUFFER; the stored TFT filter is set to the effective status; an effective TFT filter index is built, and the storage position of each TFT filter is stored; according to the sequence of the effective TFT filter index, the TFT filter index and an internet protocol (IP) message are read for TFT matching; and according to a TFT matching result, the IP message is bound on a corresponding EPS load to be sent. According to the technical scheme disclosed by the invention, when the TFT filter of the PDN connection is changed, the TFT filters which are not changed do not need to be revised, and the TFT management efficiency in the system TFT matching is improved.
Description
Technical field
(be called for short, the LTE) packet data transmission technique of system specially refers to a kind of evolved packet system and (is called for short transmission stream template EPS) (abbreviation, TFT) matching process to the present invention relates to Long Term Evolution.
Background technology
Having defined packet data network in the EPS system (is called for short; PDN) connect professional notion; PDN connects the professional IP that is meant that the EPS network provides between the outside PDN of UE and a PLMN and is connected; PDN connects business can support that (each PDN connects business can provide one or more EPS to carry to one or more business data flow for abbreviation, transmission SDF).In the EPS system, the elementary cell of service quality (QoS) control is to carry, and promptly all data traffics on the same bearer will obtain identical QoS and ensure that dissimilar carryings provides different QoS to ensure.One or more packet filtering that each EPS carries in can corresponding TFT (are called for short; TFT Filter) can there be TFT Filter yet; Through using and carrying corresponding TFT Filter; System can classify the business data flow under the PDN, and is distributed to different EPS respectively and carries and transmit.Default bearing in the EPS system does not have TFT.Fig. 1 has described PDN and EPS carries, the relation of TFT filter.
Each TFT filter has a unique ID sign.Each TFT filter also has a use priority index, and (be called for short, EPI), this priority should be unique in up (or descending) direction that a PDN connects.The scope of this priority index is that 0 to 255,0 priority is the highest, at first is used.A PDN connects can only have 256 TFT filter at most.Each TFT filter comprises following combination of attributes:
Far-end address and mask
Protocol number (IPv4)/next stature (IPv6)
The local terminal port range
The remote port scope
The IP protocol safety (be called for short safe index (SPI) IPsec).
COS (is called for short TOS) (IPv4)/transmission classification (IPv6).
The EPS system is when carrying out the transmission of IP message; Needing to use TFT to discern the IP message should transmit in the carrying of which kind of QoS; In the practical business process, system needs all IP messages and TFT filter are carried out the TFT coupling, thereby realizes the binding that IP message and EPS carry.
The method of the TFT of prior art EPS system coupling mainly contains two kinds of forms, with portable terminal (be called for short, UE) be example:
Method one
1, setting up PDN connects;
2, UE receives the TFT configuration of each EPS link that network issues;
3, UE applies for contiguous memory according to the TFT filter sum in the TFT configuration that receives, and according to priority order is stored TFT filter;
When 4, UE sent the IP message, according to priority from high to low order was mated TFT filter and said IP message successively;
If 5 TFT filter and IP message mate successfully, then this IP message is bundled in the affiliated EPS carrying of this TFT filter and sends; If coupling failure, the TFT filter that chooses low one-level priority matees, up to binds successfully perhaps all mate with all TFT filter till.
If 6 all TFT filter and IP message couplings all get nowhere, this IP message is bundled on the default bearing and transmits.
Wherein, said coupling is meant, respectively each property parameters of TFT filter and the parameter of the same race of IP message is compared, if all properties parameter of TFT filter is all identical with the parameter of the same race of IP message, then mate successfully, otherwise, the coupling failure.
The problem that method one exists is, when business changes the TFT configuration and changes, if will increase, delete TFT filter need apply for internal memory again, the TFT of all storages changed; If when TFT filter priority changes, possibly carry out the change of a large amount of TFT filter memory addresss in addition, increase data-moving copy number of times, the TFT efficiency of managing is lower.
Method two
1, setting up PDN connects;
2, UE receives the TFT configuration of each EPS link that network issues;
3, UE stores according to the TFT grader sum application monolithic internal memory in the TFT configuration, and uses chained list to carry out the TFT management;
When 4, UE sent the IP message, according to priority from high to low order was mated TFT filter and said IP message successively;
If 5 TFT filter and IP message mate successfully, then this IP message is bundled in the affiliated EPS carrying of this TFT filter and sends; If coupling failure, the TFT filter that chooses low one-level priority matees, up to binds successfully perhaps all mate with all TFT filter till.
If 6 all TFT filter and IP message couplings all get nowhere, this IP message is bundled on the default bearing and transmits.
The problem that method two exists is, if there is the priority of TFT filter to change, or the priority of some TFT filter is when exchanging, and operation is difficulty comparatively, even possibly cause chained list to rebuild, and the TFT efficiency of managing is lower.
Simultaneously; Above-mentioned two kinds of methods are being carried out TFT when coupling, the order of property parameters comparison be at random or carry out according to the sequence of positions of its storage, can make that like this matching process is longer; Increase the time delay and the packet loss of IP message, thereby reduced the system bandwidth utilance.
Summary of the invention
In view of this, the present invention proposes a kind of EPS TFT of system matching process, to improve TFT efficiency of managing in the TFT of the system coupling.
Technical scheme of the present invention is:
1, after PDN connected foundation, system was that PDN connects distribution T FT memory cell TFT_BUFFER; Said TFT_BUFFER comprises 256 piece internal memories, the fixing corresponding TFT priority of each piece internal memory;
2, said PDN is connected the TFT filter that is disposed and store in the piece internal memory of TFT_BUFFER relevant position, and the TFT filter that stores on this position is set to effective status according to its priority;
3, set up effective TFT filter index, preserve each TFT filter memory location successively by the priority order from high to low of effective TFT filter;
When 4, system sends the IP message, read TFT filter according to effective TFT filter indexed sequential and carry out TFT with said IP message and mate;
5, according to the TFT matching result IP message is bundled in transmission in the corresponding EPS carrying.
Technical scheme of the present invention is when TFT manages; For connecting, the PDN that sets up distribute 256 piece internal memories to store TFT filter; The corresponding fixing priority of each piece internal memory; The TFT filter that PDN connects is stored in the corresponding piece internal memory according to its priority, and sets up the memory location that effective TFT filter index comes PDN to be connected employed TFT filter and carry out index; When the TFT filter of PDN connection changes, only need to revise the TFT filter of relevant position, and effective TFT filter index, the TFT filter that need not other are not changed makes amendment, TFT efficiency of managing in the raising TFT of the system coupling.
Description of drawings
Fig. 1 is the sketch map that concerns of PDN and EPS carrying and TFT filter
Fig. 2 is the specific embodiment of the invention 1 flow chart
Fig. 3 is the specific embodiment of the invention 2 flow charts
Fig. 4 is the specific embodiment of the invention 3 flow charts
Embodiment
For further specifying technical scheme of the present invention, below with the mode of specific embodiment and be described with reference to the accompanying drawings.
Specific embodiment 1
This specific embodiment is a kind of preferred implementation of the inventive method in UE, and its flow process is as shown in Figure 2.
1, after PDN connected foundation, system was that PDN connects distribution T FT memory cell TFT_BUFFER; Said TFT_BUFFER comprises 256 piece internal memories, the fixing corresponding TFT priority of each piece internal memory;
In the present embodiment, said TFT_BUFFER is the static memory pond of 256 TFT filter memory spaces for size; Each TFT filter memory cell in the memory pool is arranged in order according to EPI from small to large;
2, said PDN is connected the TFT filter that is disposed and store in the piece internal memory of TFT_BUFFER relevant position, and the TFT filter that stores on this position is set to effective status according to its priority;
UE receives the TFT configuration that said PDN connects from network terminal, and the TFT filter that distributes to said PDN connection is stored in TFT memory cell corresponding in the memory pool respectively according to its EPI; And the TFT filter that stores in the memory pool is set to effective status;
3, set up effective TFT filter index, the index of each TFT filter memory location preserved successively in said effective TFT filter index by the priority order from high to low of effective TFT filter;
UE creates effective TFT filter array of indexes that said PDN connects, and array length is effective TFT filter number;
In the present embodiment, the element in said effective TFT filter array of indexes is the EPI of each effective TFT filter; Putting in order to by EPI sequence arrangement from small to large of said array element;
When 4, UE sends the IP message, read TFT filter according to effective TFT filter indexed sequential and carry out TFT with said IP message and mate;
401, UE judges the EPI that whether does not read in addition in said effective TFT filter array of indexes; If have, execution in step 402, otherwise execution in step 406;
402, UE reads an EPI who does not read in said effective TFT filter array of indexes in proper order;
403, from TFT_BUFFER, read the TFT filter of correspondence position according to the EPI that reads, carry out parameter matching with the IP message;
If 404 TFT filter and IP message mate successfully, execution in step 405; Otherwise execution in step 401;
405, said IP message is bundled in the EPS carrying under this TFT filter execution in step 5;
406, said IP message is bundled on the EPS default bearing;
5, in the EPS of said binding carrying, send said IP message.
Specific embodiment 2
This specific embodiment is a kind of preferred implementation of the inventive method in UE, and its flow process is as shown in Figure 3.
1, after PDN connected foundation, system was that PDN connects distribution T FT memory cell TFT_BUFFER; Said TFT_BUFFER comprises 256 piece internal memories, the fixing corresponding TFT priority of each piece internal memory;
In the present embodiment, said TFT_BUFFER is that 256 sizes are the Dram piece of TFT filter memory space; The fixing corresponding EPI of each memory block;
2, said PDN is connected the TFT filter that is disposed and store in the piece internal memory of TFT_BUFFER relevant position, and the TFT filter that stores on this position is set to effective status according to its priority;
UE receives the TFT configuration that said PDN connects from network terminal, and the TFT filter that distributes to said PDN connection is stored in corresponding Dram piece respectively according to its EPI; And the TFT filter of this Dram piece storage is set to effective status;
3, set up effective TFT filter index, the index of each TFT filter memory location preserved successively in said effective TFT filter index by the priority order from high to low of effective TFT filter;
UE creates effective TFT filter array of indexes that said PDN connects, and array length is effective TFT filter number;
In the present embodiment, the element in said effective TFT filter array of indexes is the address of the Dram piece of each effective TFT filter of preservation; Putting in order to by the corresponding EPI of said Dram piece sequence arrangement from small to large of said array element;
When 4, UE sends the IP message, read TFT filter according to effective TFT filter indexed sequential and carry out TFT with said IP message and mate;
401, UE judges the element that whether does not read in addition in said effective TFT filter array of indexes; If have, execution in step 402, otherwise execution in step 408;
402, UE reads an element that does not read in said effective TFT filter array of indexes in proper order;
403, read TFT filter according to the element that reads from its corresponding Dram piece;
404, UE is matched to power p according to what current business scenario was confirmed each parameter of TFT filter;
Wherein, the corresponding relation of business scenario and p is that UE is provided with according to the power experiment statistics result that is matched to of each parameter under the different business scene in advance;
In the present embodiment, the current business scene is the secure service that higher layer applications is carried out operations such as HTTP web page browsing and Net silver, ecommerce simultaneously.
In the case, the parameter matching success rate ordering of statistics acquisition is:
Protocol number＞TOS＞local terminal port range＞IPSEC＞remote port scope＞far-end address and mask
405, UE selects the minimum TFT filter parameter of p value in the parameter of not carrying out overmatching; If do not carry out the parameter of overmatching, execution in step 407;
406, the parameter of selecting is mated with the corresponding parameter of IP message; If mate successfully, execution in step 405, otherwise execution in step 401;
407, said IP message is bundled in the EPS carrying under this TFT filter execution in step 5;
408, said IP message is bundled on the EPS default bearing;
5, in the EPS of said binding carrying, send said IP message.
In the present embodiment, UE is matched to power to the parameter of mating according to it and carries out descending relatively when carrying out IP message TFT coupling, can shorten TFT match time like this, improves matching efficiency.
Specific embodiment 3
The flow process of present embodiment is as shown in Figure 4.
Step 1～2 are identical with specific embodiment 1
3, set up effective TFT filter index, the index of each TFT filter memory location preserved successively in said effective TFT filter index by the priority order from high to low of effective TFT filter;
In the present embodiment, effective TFT filter array of indexes that the said PDN of system creation connects, array length is effective TFT filter number+1; The EPI of effective TFT filter is begun to preserve successively by from small to large order second element from said array;
Step 4～5 are identical with specific embodiment 2;
In the present embodiment, the current business scene is that higher layer applications is carried out HTTP browsing page, ftp file transmission, streaming media video play service simultaneously
In the case, the ordering of parameter matching success rate does
IPSEC＞protocol number＞TOS＞local terminal port range＞remote port scope＞far-end address and mask
6, the success rate of each effective TFT filter of system statistics and IP message coupling; The EPI that is matched to prominent TFT filter is saved in first element of said effective TFT filter array of indexes.
In this step, system is the cycle with the certain hour length L, the successful number of each effective TFT filter of statistics and IP message coupling in the cycle; The EPI that before next cycle begins, will mate the maximum TFT filter of successful number is saved in first element of said effective TFT filter array of indexes;
The span of said L is 15～45 seconds;
Or system is a unit with the IP bag quantity M of certain execution TFT coupling, adds up each effective TFT filter and the successful number of IP message coupling in M the IP bag; The EPI of the TFT filter that the successful number of coupling is maximum is saved in first element of said effective TFT filter array of indexes.
Wherein, the span of said M is 1500～10000.
In the present embodiment, system is matched to power according to each TFT filter and the IP message that statistics in a period of time obtains, and the preferential the highest TFT filter of success rate that uses carries out the TFT coupling in following a period of time; Consider generally all have continuity, and the same professional probability that uses same EPS to carry is very big, like this, can further shorten TFT match time, raises the efficiency in business.
One of ordinary skill in the art obviously should be known and understood, and the above embodiment that the inventive method is lifted only is used to explain the inventive method, and is not limited to the inventive method.Though effectively described the present invention through embodiment, also there are many variations in the present invention and do not break away from spirit of the present invention.Under the situation of spirit that does not deviate from the inventive method and essence thereof, those skilled in the art work as can make various corresponding changes or distortion according to the inventive method, but these corresponding changes or distortion all belong to the claim protection range of the inventive method.
Claims (8)
1. the evolution grouping EPS TFT of a system matching process is characterized in that, comprising:
After packet data network PDN connected foundation, system was that PDN connects distribution transmission stream template TFT memory cell TFT_BUFFER; Said TFT_BUFFER comprises 256 piece internal memories, the fixing corresponding TFT priority of each piece internal memory;
Said PDN is connected the packet filtering TFT filter that is disposed store in the piece internal memory of TFT_BUFFER relevant position, and the TFT filter that stores on this position is set to effective status according to its priority;
Set up effective TFT filter index, preserve each TFT filter memory location successively by the priority order from high to low of effective TFT filter;
When system sends the IP message, read TFT filter according to effective TFT filter indexed sequential and carry out TFT with said IP message and mate;
According to the TFT matching result IP message is bundled in transmission in the corresponding EPS carrying.
2. a kind of EPS TFT of system matching process according to claim 1 is characterized in that, said TFT_BUFFER is the static memory pond of 256 TFT filter memory spaces for size; Each TFT filter memory cell in the memory pool uses priority index EPI to be arranged in order from small to large according to TFT filter.
3. a kind of EPS TFT of system matching process according to claim 1 is characterized in that, said TFT_BUFFER is that 256 sizes are the Dram piece of TFT filter memory space; The fixing corresponding TFT filter of each memory block uses priority index EPI.
4. according to each the described a kind of EPS TFT of system matching process in the claim 1～3, it is characterized in that the effective TFT filter of said basis indexed sequential reads TFT filter and said IP message to carry out the TFT coupling and comprise:
Be matched to power p according to what current business scenario was confirmed each parameter of TFT filter;
When carrying out IP bag TFT coupling, according to p order from small to large each parameter of TFT filter is wrapped corresponding parameter with IP and mate;
Wherein, the corresponding relation of business scenario and p is that UE is provided with according to the power experiment statistics result that is matched to of each parameter under the different business scene in advance.
5. according to each the described a kind of EPS TFT of system matching process in the claim 1～3, it is characterized in that said method also comprises:
System is the cycle with the certain hour length L, the successful number of each effective TFT filter of statistics and IP message coupling in the cycle; The preferential maximum TFT filter of coupling success number that uses statistics to obtain carries out the TFT coupling in next cycle;
Wherein, the span of said L is 15～45 seconds.
6. according to each the described a kind of EPS TFT of system matching process in the claim 1～3, it is characterized in that said method also comprises:
System is a unit with the IP bag quantity M of certain execution TFT coupling, adds up each effective TFT filter and the successful number of IP message coupling in M the IP bag; The preferential maximum TFT filter of coupling success number that uses statistics to obtain carries out follow-up M IP bag and carries out the TFT coupling;
Wherein, the span of said M is 1500～10000.
7. a kind of EPS TFT of system matching process according to claim 4 is characterized in that said method also comprises:
System is the cycle with the certain hour length L, the successful number of each effective TFT filter of statistics and IP message coupling in the cycle; The preferential maximum TFT filter of coupling success number that uses statistics to obtain carries out the TFT coupling in next cycle;
Wherein, the span of said L is 15～45 seconds.
8. a kind of EPS TFT of system matching process according to claim 4 is characterized in that said method also comprises:
System is a unit with the IP bag quantity M of certain execution TFT coupling, adds up each effective TFT filter and the successful number of IP message coupling in M the IP bag; The preferential maximum TFT filter of coupling success number that uses statistics to obtain carries out follow-up M IP bag and carries out the TFT coupling;
Wherein, the span of said M is 1500～10000.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618680A (en) * | 2013-12-05 | 2014-03-05 | 重庆邮电大学 | TFT maintenance method based on bearing layering in EPS |
| CN104168276A (en) * | 2014-08-14 | 2014-11-26 | 中国联合网络通信集团有限公司 | Adjusting method and device of filter |
| CN105813139A (en) * | 2014-12-30 | 2016-07-27 | 苏州简约纳电子有限公司 | Dynamic management system and dynamic management method for data caching area of uplinking multiple data bearers in LTE system |
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| CN1741494A (en) * | 2004-08-27 | 2006-03-01 | 华为技术有限公司 | Secondary activating data transmitting method and equipment thereof |
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| CN101631336A (en) * | 2009-08-06 | 2010-01-20 | 中兴通讯股份有限公司 | Method and device for managing uplink transmission stream template |
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| CN1898916A (en) * | 2003-10-20 | 2007-01-17 | 英特尔公司 | Method and apparatus for two-stage packet classification using most specific filter matching and transport level sharing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618680A (en) * | 2013-12-05 | 2014-03-05 | 重庆邮电大学 | TFT maintenance method based on bearing layering in EPS |
| CN103618680B (en) * | 2013-12-05 | 2017-01-25 | 重庆邮电大学 | TFT maintenance method based on bearing layering in EPS |
| CN104168276A (en) * | 2014-08-14 | 2014-11-26 | 中国联合网络通信集团有限公司 | Adjusting method and device of filter |
| CN104168276B (en) * | 2014-08-14 | 2017-07-04 | 中国联合网络通信集团有限公司 | The method of adjustment and device of a kind of filter |
| CN105813139A (en) * | 2014-12-30 | 2016-07-27 | 苏州简约纳电子有限公司 | Dynamic management system and dynamic management method for data caching area of uplinking multiple data bearers in LTE system |
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