CN102546100A - Robust header compression feedback management method, device and decompressor - Google Patents
Robust header compression feedback management method, device and decompressor Download PDFInfo
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- CN102546100A CN102546100A CN2011104345892A CN201110434589A CN102546100A CN 102546100 A CN102546100 A CN 102546100A CN 2011104345892 A CN2011104345892 A CN 2011104345892A CN 201110434589 A CN201110434589 A CN 201110434589A CN 102546100 A CN102546100 A CN 102546100A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
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Abstract
The invention relates to a robust header compression feedback management method, a device and a decompressor. In the method disclosed by the invention, the working mode of the decompressor is a bidirectional mode; and when incidental feedback or bottom link timing feedback is used, the method comprises the following steps: a priority marking step: marking the priority comprising a type priority of a newly-generated feedback packet by the decompressor, wherein the type priority of an STATIC-NACK feedback packet is the highest, the type priority of an NACK (Negative Acknowledgement) feedback packet is in the middle, and the type priority of an ACK (acknowledgement character) feedback packet is the lowest; a to-be-sent feedback packet marking step: marking the feedback packet with the highest type priority, which is to be sent at present, as a sendable feedback packet by the decompressor; and a feedback packet sending step: sending all the sendable feedback packets by the decompressor. Through the method, the device and the decompressor, disclosed by the invention, the compression efficiency under the bidirectional mode can be improved.
Description
Technical field
The present invention relates to a kind of robustness head compression technology in the moving communicating field, especially a kind of robustness compressed feedback management method, device and decompression machine.
Background technology
Because the restriction of physical condition, it is lower that the Radio Link in the GSM and wire link are compared transmission rate, and the error rate is higher.In order effectively to utilize limited wireless channel width resource, introduced robustness head compression technology (RObust Header Compress is hereinafter to be referred as ROHC).The core of ROHC is to utilize the information redundancy between the grouping of Business Stream to come the information in the packets headers between the transparent direct connected node of compression and decompression.
ROHC can work under two kinds of different patterns, unidirectional mode (ROHCv1 is the U pattern) and two-way mode (ROHCv1 is the O/R pattern).ROHC does not send feedback packet under unidirectional mode, and the mode that compressor reducer takes optimism to approach usually improves compression efficiency, and takes regularly to improve the compression robustness to the mode of hanging down state transition; Under two-way mode, decompression machine improves compression efficiency and robustness for the compressor reducer of opposite end according to the decompress(ion) needs through sending feedback packet.
When ROHC is operated in two-way mode following time, a feedback packet generally needs three processes from being generated to the compressor reducer that sends to the opposite end.At first, decompression machine need feed back decision-making according to decompression procedure, selects feedback opportunity and generates suitable feedback packet type.Secondly, send the occasion of feeding back in non-promptness, decompression machine need carry out feedback management, selects a kind of rational feedback management method, is used for safeguarding feedback packet order to be sent.At last, decompression machine need carry out feedback packet and send, and feedback packet is sent to the compressor reducer of opposite end through taking different feedback packet send modes.
In the feedback decision process, decompression machine can be taked sparse feedback, and feedback algorithms such as selectivity ACK feedback carry out the selection of feedback packet type; In the feedback management process, decompression machine can take any-mode to feed back the ordering of formation, generally takes the mode of FIFO; In the feedback process of transmitting, according among the RFC3095 about the description of feedback packet send mode, ROHC can use incidentally the mode of feedback to send feedback, the feedback path that also can use the bottom link to provide sends the ROHC feedback.
Owing in agreement, do not spell out the feedback management algorithm that ROHC needs, on tradition realized, the developer can take the mode of the simplest FIFO to carry out feedback management (as shown in Figure 1).No matter be that which kind of type is pending upper-layer service be, the sequence consensus that the order that feedback packet is sent produces with feedback packet all the time; Also the quantity with the feedback packet generation is consistent all the time for the quantity that feedback packet is sent.More single or use the bottom link in time to send the occasion of feedback packet when upper-layer service, use FIFO to work normally.But and occasion that use incidentally feed back or the occasion of using bottom link timed sending feed back more when upper-layer service quantity only use FIFO that the compression of peak efficiency can not be provided.For the problem of using FIFO to exist is described, provided an in-problem scene below.
Problem scenes: upper-layer service has been set up three ROHC decompress(ion) contexts respectively according to high speed, middling speed, three different demands of low speed.Suppose quantity that present ROHC only provides incidentally feedback and descending compressed package far away more than up original packet quantity, local terminal will produce a large amount of feedback packet so, and the quantity of these feedback packet will be proportional with service rate probably.Because upstream data and incidentally to feed back entrained feedback information volume limited, local terminal feedback packet to be sent just might be piled up, and promptly the formation speed of feedback packet is far longer than the transmission speed of feedback packet.Possibly produce following three types of problems like this:
The Network Transmission that has intangibly increased feedback packet postpones.
A large amount of feedback packet of having sent are because transmission lag and invalid.
The feedback packet of high speed business is sent in a large number, and the feedback data packet of middle low speed can not in time be sent, and causes the professional perhaps middling speed business of low speed can't reach the compression efficiency of expectation.
In addition, when using bottom link timed sending feedback, because the skewness of feedback packet, the feedback packet of a certain bag stream is too much, has a large amount of invalid or redundant feedback informations in the feedback formation, and top problem possibly take place equally.
Summary of the invention
The technical problem that the present invention will solve provides a kind of robustness compressed feedback management method, device and decompression machine, to solve the inefficient problem of two-way mode lower compression.
For solving above technical problem, the present invention provides a kind of feedback management method of robustness head compression, and the mode of operation of decompression machine is a two-way mode, and when using incidentally feedback or bottom link regularly to feed back, this method comprises:
The priority flag step; The priority of the feedback packet that the decompression machine mark is newly-generated, said priority comprises classification priority, wherein; The classification priority of STATIC_NACK feedback packet classification priority the highest, the NACK feedback packet is taken second place, and the classification priority of ACK feedback packet is minimum;
Markers step to be sent, the highest feedback packet of the current feedback packet medium priority to be sent of said decompression machine mark is for can send feedback packet;
The feedback packet forwarding step, said decompression machine sends all can send feedback packet.
Further, said priority flag step comprises:
Said decompression machine judges whether the bag stream under this newly-generated feedback packet exists the feedback packet of leaving over to be sent, and when judgement exists, deletes all and leave over feedback packet;
The classification priority of said this newly-generated feedback packet of decompression machine mark.
Further; Said priority also comprises the transmission priority of the feedback packet sending order that is used to represent same classification priority; After the classification priority of this newly-generated feedback packet of said mark, the priority flag step also comprises: the transmission priority of this newly-generated feedback packet of said decompression machine mark in the feedback packet of affiliated classification priority.
Further, said decompression machine sends priority according to first in first out (FIFO) principle, data package transmission velocity or feedback packet generated frequency mark.
Further, said markers step to be sent comprises:
Meet when sending the feedback packet condition, said decompression machine selects the highest feedback packet of feedback packet medium priority to be sent to be labeled as can send feedback packet;
Said decompression machine judges whether the current feedback packet quantity of sending reaches preset value, if not, then returns a step, otherwise carries out the feedback packet forwarding step.
Further, said decompression machine selects the step of the highest feedback packet of feedback packet medium priority to be sent to comprise:
Said decompression machine judges whether to exist STATIC_NACK feedback packet to be sent, if exist, then selects to send the highest STATIC_NACK feedback packet of priority, otherwise carries out next step;
Said decompression machine judges whether to exist NACK feedback packet to be sent, if exist, then selects to send the highest NACK feedback packet of priority, otherwise carries out next step;
Said decompression machine judges whether to exist ACK feedback packet to be sent, if exist, then select to send the highest ACK feedback packet of priority, otherwise flow process finishes.
For solving above technical problem, the present invention also provides a kind of robustness compressed feedback management devices, and this device comprises:
The priority flag unit; The priority that is used for the newly-generated feedback packet of mark, said priority comprises classification priority, wherein; The classification priority of STATIC_NACK feedback packet classification priority the highest, the NACK feedback packet is taken second place, and the classification priority of ACK feedback packet is minimum;
Can send indexing unit, be used for the highest feedback packet of the current feedback packet medium priority to be sent of mark for can send feedback packet.
Further, said priority flag unit only keeps last feedback packet of each bag stream.
Further, said priority flag unit comprises:
The feedback packet processing module is used to judge whether the bag stream under this newly-generated feedback packet exists the feedback packet of leaving over to be sent, and when judgement exists, deletes all and leave over feedback packet;
The priority flag module is used for the classification priority of this newly-generated feedback packet of mark.
Further; Said priority also comprises the transmission priority of the feedback packet sending order that is used to represent same classification priority, and said priority flag module also is used for the transmission priority of this newly-generated feedback packet of mark in the feedback packet of affiliated classification priority.
Further, the said indexing unit that sends comprises:
Can send the feedback packet mark module, be used for sending feedback packet condition and current and sending feedback packet quantity when not reaching preset value meeting, the highest feedback packet of mark feedback packet medium priority to be sent is for can send feedback packet;
Feedback packet quantity judge module is used to judge whether the current feedback packet quantity of sending reaches preset value.
For solving above technical problem, the present invention also provides a kind of robustness compressordecompressor, and this decompression machine comprises:
The state judging unit is used to mode of operation and the feedback system of judging that said decompression machine is current;
The feedback management device control units, the mode of operation that is used at said decompression machine is a two-way mode, and uses incidentally feedback or bottom link regularly during feedback system, starts said feedback management device;
The feedback packet generation unit is used to generate feedback packet;
Aforesaid feedback management device;
The feedback packet transmitting element is used for, sending all and can sending feedback packet when reaching preset value in the current feedback packet quantity of sending.
The present invention's feedback packet that each is to be sent is provided with priority, when sending feedback packet, through all Bao Liuzhong feedback packet to be sent relatively; According to STATIC_NACK; NACK, the priority orders of ACK selects the highest feedback packet of priority to send; Finally reach and take into account different bag streams, improve the purpose of ROHC overall performance and two-way mode lower compression efficient.
Description of drawings
Fig. 1 is a feedback management algorithm logic structure chart under the FIFO mode;
Fig. 2 is the feedback management method sketch map of robustness head compression;
Fig. 3 is the feedback management method building-block of logic of robustness head compression;
The process chart that Fig. 4 opens for the feedback management method;
Fig. 5 is the process chart of priority flag;
Fig. 6 is for sending the process chart of mark;
Fig. 7 is a robustness compressed feedback management devices modular structure sketch map;
Fig. 8 is the modular structure sketch map of a robustness compressordecompressor.
Embodiment
What the present invention proposed is a kind of feedback management method of robustness head compression, and the mode of operation of decompression machine is a two-way mode, and when using incidentally feedback or bottom link regularly to feed back, as shown in Figure 2, this method comprises:
Step S401, priority flag step, the priority of the feedback packet that the decompression machine mark is newly-generated; Said priority comprises classification priority; Wherein, the classification priority of STATIC_NACK feedback packet classification priority the highest, the NACK feedback packet is taken second place, and the classification priority of ACK feedback packet is minimum;
As shown in Figure 3; Parameter informations such as bag stream type under time and the frequency that decompression machine generates according to feedback packet, the type of feedback packet self and feedback packet are each rational sending order of feedback packet arrangement to be sent; Delete invalid or redundant feedback packet; Thereby the reasonable use feedback channel resources increases the validity of feedback packet more, thereby improves the efficient of ROHC overall operation.
Among Fig. 3, on the one hand, each data packet stream all corresponding a decompress(ion) context, decompression machine can periodically be added up the compressed package quantity of utilizing certain decompress(ion) context to handle, thereby estimates the corresponding bag stream transmission rate of this decompress(ion) context.If two-way mode, for the higher bag stream of transmission rate, the speed that its feedback data packet generates is also accordingly than higher.On the other hand, do not have retransmission mechanism among the ROHC, the data of all Bao Liuzhong are are all only received and dispatched once, and what the feedback packet that decompression machine generates showed all is the up-to-date state information of decompression machine.For a plurality of feedback packet in utilizing same decompress(ion) context, when last feedback packet generated, the feedback packet to be sent that this feedback packet generated in the past was all ineffective.
In general; When compressor reducer and decompression machine step-out (promptly asynchronous) cause the failure of decompression machine data decompression; Decompression machine can damaged condition based on context generate the STATIC_NACK feedback packet; Perhaps NACK feedback packet, wherein STATIC_NACK representes that the decompression machine static context damages, its needs be sent out more timely.When the data decompression success, can generate the ACK feedback packet.
Step S402 can send markers step, and the highest feedback packet of the current feedback packet medium priority to be sent of said decompression machine mark is for can send feedback packet;
Step S403, the feedback packet forwarding step, said decompression machine sends all can send feedback packet.
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
To a decompression machine, can selectively open feedback management method (as shown in Figure 4).The condition that the feedback management method is opened is a two-way mode, uses incidentally to feed back and perhaps uses bottom chain timer feedback.For unidirectional mode and take the bottom link directly to send the mode of feedback, then need not launch the feedback management method.
Handling process below in conjunction with 4 pairs of feedback management methods involved in the present invention of accompanying drawing are opened is done further detailed description:
Step S101: feedback management method open detection flow startup gets into step S102;
Step S102: judge the mode of operation that current ROHC is current,, get into step S103 if ROHC is in two-way mode; If ROHC is in unidirectional mode, then do not open the feedback management method, get into step S106;
Step S103: judge whether current ROHC uses mode incidentally to send the feedback packet that decompression machine generates, if then get into step S105; Otherwise get into step S104;
Step S104: judge whether ROHC uses bottom link timed sending feedback system,, need to open the feedback management method, get into step S105 if then there is the possibility of piling up in feedback packet; If use the mode of sending feedback immediately, get into step S106;
Step S105: current ROHC is operated in and possibly produces the occasion that feedback packet is piled up, and opens feedback feedback management method, gets into step S106;
Step S106: feedback feedback management method open detection flow process finishes;
Intelligible, in the time need not opening feedback management method of the present invention, adopt existing process of feedback that feedback packet is handled.
According to the feedback characteristics of ROHC, in a plurality of continuous feedback bags of same bag stream, the validity and the rise time of feedback packet are directly proportional, and promptly the feedback packet validity of I's one-tenth is strong more more.For continuous many bags ack msg, can use last bag ack msg to replace all ack msgs in front.In the occasion of opening the feedback management method, feedback management method of the present invention only can be safeguarded a last feedback packet that arrives for each bag stream, and no matter this feedback packet is ACK, NACK or STATIC_NACK.For the same type of feedback packet of a plurality of Bao Liuzhong, can take its priority of any-mode sign.Safeguard specific sending sequence number such as the mode of taking FIFO for each type feedback packet.
Handling process below in conjunction with 5 pairs of priority flags of the present invention of accompanying drawing is done further detailed description:
Step S201: feedback packet that decompression machine is newly-generated, feedback packet priority flag flow startup gets into step S202;
Step S202: judge whether current ROHC has used the feedback management method,, then need handle, get into step S203 to newly-generated feedback packet if use; If do not open the feedback management method, get into step S208;
Step S203: judge whether the Bao Liuzhong under the newly-generated feedback packet exists the feedback packet of leaving over to be sent, like judgement is, gets into step S204; Otherwise get into step S205;
Step S204: according to the ROHC feedback characteristics, newly-generated feedback packet validity and priority all are higher than leaves over feedback, will leave over feedback packet and all delete, and gets into step S205;
Step S205: the corresponding bag stream with it of newly-generated feedback packet is associated, becomes the unique feedback packet that needs transmission of this bag stream, get into step S206;
Step S206: the classification priority of this newly-generated feedback packet of mark gets into step S208;
Wherein, the classification priority of STATIC_NACK feedback packet classification priority the highest, the NACK feedback packet is taken second place, and the classification priority of ACK feedback packet is minimum;
Step S207: the transmission priority of this newly-generated feedback packet of mark in the feedback packet of affiliated classification priority after transmission priority is provided with completion, gets into step S208;
In the current ROHC instance, use any priority set-up mode that the transmission priority of this newly-generated feedback packet in the feedback packet of affiliated classification priority is set.The simplest, can use the mode of FIFO that priority is set.Also can be according to the transmission rate of difference bag stream, information setting priority such as feedback packet generating rate.
Alternatively; It is identical also can be defaulted as the transmission priority of this newly-generated feedback packet in the feedback packet of affiliated classification priority; The transmission priority of the STATIC_NACK feedback packet of promptly different bag streams is identical; The transmission priority of the NACK feedback packet of different bag streams is identical, and the transmission priority of the ACK feedback packet of different bag streams is identical.
Step S208: the priority flag flow process finishes.
In the occasion of opening the feedback management method, need select the highest feedback packet of priority according to the current feedback packet amount that can carry.According to the feedback characteristics of ROHC, the priority of STATIC_NACK necessarily is higher than NACK, and the priority of NACK necessarily is higher than ACK.If any a plurality of, each that then needs all Bao Liuzhong relatively waits to send out the transmission priority of feedback packet, according to sending priority tag, selects to send the higher feedback packet of priority in each type feedback packet.
Handling process below in conjunction with 6 pairs of sent marks involved in the present invention of accompanying drawing is done further detailed description:
Step S301: mark flow startup to be sent gets into step S302;
Step S302: decompression machine meets the condition of sending one or more feedback packet, gets into step S303;
The condition of sending feedback packet can be the feedback timer expiry or incidentally feed back.
Step S303: judge whether current ROHC uses the feedback management method,, get into step S304 if use; Otherwise, get into step S311;
Step S304: judge whether current ROHC instance exists feedback packet to be sent,, get into step S305 if exist; Otherwise, get into step S312;
Step S305: judge whether current ROHC instance exists STATIC_NACK feedback packet to be sent,, get into step S306 if exist; Otherwise, get into step S307;
Step S306: send the highest feedback packet of priority in the STATIC_NACK feedback packet of all bag streams of current ROHC instance and be set to state to be sent, get into step S311;
Step S307: judge whether current ROHC instance exists NACK feedback packet to be sent,, get into step S308 if exist; Otherwise, get into step S309;
Step S308: send the highest feedback packet of priority in the NACK feedback packet of all bag streams of current ROHC instance and be set to state to be sent, get into step S311;
Step S309: judge whether current ROHC instance exists ACK feedback packet to be sent,, get into step S310, otherwise get into step S12 if exist;
Step S310: send the highest feedback packet of priority in the ACK feedback packet of all bag streams of current ROHC instance and be set to state to be sent, get into step S311;
Above step S304 promptly is that decompression machine is selected the highest feedback packet of feedback packet medium priority to be sent and is labeled as the process that can send feedback packet when meeting transmission feedback packet condition to the process of S310.
Step S311: judge whether the current feedback packet quantity of sending reaches preset value, if get into step S312; Otherwise, return step S304;
Step S312: can send the mark flow process and finish.
All can send feedback packet can to send mark flow process end back transmission;
In order to realize above method, the present invention also provides a kind of robustness compressed feedback management devices, and as shown in Figure 7, this device comprises:
The priority flag unit; The priority that is used for the newly-generated feedback packet of mark, said priority comprises classification priority, wherein; The classification priority of STATIC_NACK feedback packet classification priority the highest, the NACK feedback packet is taken second place, and the classification priority of ACK feedback packet is minimum;
Can send indexing unit, be transmit status but be used for the highest feedback packet of the current feedback packet medium priority to be sent of mark.
Last feedback packet that said priority flag unit only keeps and each bag of mark flows, preferably, this priority flag unit comprises:
The feedback packet processing module is used to judge whether the bag stream under this newly-generated feedback packet exists the feedback packet of leaving over to be sent, and when judgement exists, deletes all and leave over feedback packet;
The priority flag module is used for the classification priority of this newly-generated feedback packet of mark.
Preferably; Said priority also comprises the transmission priority of the feedback packet sending order that is used to represent same classification priority, and said priority flag module also is used for the transmission priority of this newly-generated feedback packet of mark in the feedback packet of affiliated classification priority.
Under the particular case, the transmission priority of the feedback packet of same classification priority can be set to identical.
Preferably, the said indexing unit that sends comprises:
Can send the feedback packet mark module, be used for sending feedback packet condition and current and sending feedback packet quantity when not reaching preset value meeting, the highest feedback packet of mark feedback packet medium priority to be sent is for can send feedback packet;
Feedback packet quantity judge module is used to judge whether the current feedback packet quantity of sending reaches preset value.
In addition, the present invention also provides a kind of robustness compressordecompressor, and is as shown in Figure 8, and this decompression machine comprises:
The state judging unit is used to mode of operation and the feedback system of judging that said decompression machine is current;
The feedback management device control units, the mode of operation that is used at said decompression machine is a two-way mode, and uses incidentally feedback or bottom link regularly during feedback system, starts said feedback management device;
The feedback packet generation unit is used to generate feedback packet;
The feedback management device is used to carry out feedback management, specifically as previously mentioned;
The feedback packet transmitting element is used for, sending all and can sending feedback packet when reaching preset value in the current feedback packet quantity of sending.
The present invention's feedback packet that each is to be sent is provided with priority, when sending feedback packet, through all Bao Liuzhong feedback packet to be sent relatively; According to STATIC_NACK; NACK, the priority orders of ACK selects the highest feedback packet of priority to send; Finally reach and take into account different bag streams, improve the purpose of the compression efficiency under ROHC overall performance and the two-way mode.
In addition; The parameter informations such as type of time, frequency characteristic and the feedback packet self that can generate according to feedback packet; Delete invalid or redundant feedback packet, and be the remaining rational sending order of feedback packet arrangement to be sent, use the method that following advantage is arranged:
Increased the validity of feedback packet.
Guaranteed the ageing of feedback packet to greatest extent.
Load balancing has reasonably been adjusted the compression efficiency between different bag streams.
Alleviated the burden of the invalid and redundant feedback of compressor processes to a certain extent;
Make the ROHC feedback packet that operates under the two-way mode can bring into play its effect as much as possible, promptly report local terminal decompression machine current states, thereby improve the compression efficiency of bag stream on the whole to the opposite end compressor reducer.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the feedback management method of robustness head compression is characterized in that the mode of operation of decompression machine is a two-way mode, and when using incidentally feedback or bottom link regularly to feed back, this method comprises:
The priority flag step; The priority of the feedback packet that the decompression machine mark is newly-generated, said priority comprises classification priority, wherein; The classification priority of STATIC_NACK feedback packet classification priority the highest, the NACK feedback packet is taken second place, and the classification priority of ACK feedback packet is minimum;
Markers step to be sent, the highest feedback packet of the current feedback packet medium priority to be sent of said decompression machine mark is for can send feedback packet;
The feedback packet forwarding step, said decompression machine sends all can send feedback packet.
2. the method for claim 1 is characterized in that, said priority flag step comprises:
Said decompression machine judges whether the bag stream under this newly-generated feedback packet exists the feedback packet of leaving over to be sent, and when judgement exists, deletes all and leave over feedback packet;
The classification priority of said this newly-generated feedback packet of decompression machine mark.
3. method as claimed in claim 2; It is characterized in that: said priority also comprises the transmission priority of the feedback packet sending order that is used to represent same classification priority; After the classification priority of this newly-generated feedback packet of said mark, the priority flag step also comprises: the transmission priority of this newly-generated feedback packet of said decompression machine mark in the feedback packet of affiliated classification priority.
4. method as claimed in claim 3 is characterized in that: said decompression machine sends priority according to first in first out (FIFO) principle, data package transmission velocity or feedback packet generated frequency mark.
5. the method for claim 1 is characterized in that, said markers step to be sent comprises:
Meet when sending the feedback packet condition, said decompression machine selects the highest feedback packet of feedback packet medium priority to be sent to be labeled as can send feedback packet;
Said decompression machine judges whether the current feedback packet quantity of sending reaches preset value, if not, then returns a step, otherwise carries out the feedback packet forwarding step.
6. method as claimed in claim 5 is characterized in that, said decompression machine selects the step of the highest feedback packet of feedback packet medium priority to be sent to comprise:
Said decompression machine judges whether to exist STATIC_NACK feedback packet to be sent, if exist, then selects to send the highest STATIC_NACK feedback packet of priority, otherwise carries out next step;
Said decompression machine judges whether to exist NACK feedback packet to be sent, if exist, then selects to send the highest NACK feedback packet of priority, otherwise carries out next step;
Said decompression machine judges whether to exist ACK feedback packet to be sent, if exist, then select to send the highest ACK feedback packet of priority, otherwise flow process finishes.
7. robustness compressed feedback management devices is characterized in that this device comprises:
The priority flag unit; The priority that is used for the newly-generated feedback packet of mark, said priority comprises classification priority, wherein; The classification priority of STATIC_NACK feedback packet classification priority the highest, the NACK feedback packet is taken second place, and the classification priority of ACK feedback packet is minimum;
Can send indexing unit, be used for the highest feedback packet of the current feedback packet medium priority to be sent of mark for can send feedback packet.
8. device as claimed in claim 7 is characterized in that, said priority flag unit only keeps last feedback packet of each bag stream.
9. device as claimed in claim 7 is characterized in that, said priority flag unit comprises:
The feedback packet processing module is used to judge whether the bag stream under this newly-generated feedback packet exists the feedback packet of leaving over to be sent, and when judgement exists, deletes all and leave over feedback packet;
The priority flag module is used for the classification priority of this newly-generated feedback packet of mark.
10. device as claimed in claim 9; It is characterized in that: said priority also comprises the transmission priority of the feedback packet sending order that is used to represent same classification priority, and said priority flag module also is used for the transmission priority of this newly-generated feedback packet of mark in the feedback packet of affiliated classification priority.
11. device as claimed in claim 7 is characterized in that, the said indexing unit that sends comprises:
Can send the feedback packet mark module, be used for sending feedback packet condition and current and sending feedback packet quantity when not reaching preset value meeting, the highest feedback packet of mark feedback packet medium priority to be sent is for can send feedback packet;
Feedback packet quantity judge module is used to judge whether the current feedback packet quantity of sending reaches preset value.
12. a robustness compressordecompressor is characterized in that this decompression machine comprises:
The state judging unit is used to mode of operation and the feedback system of judging that said decompression machine is current;
The feedback management device control units, the mode of operation that is used at said decompression machine is a two-way mode, and uses incidentally feedback or bottom link regularly during feedback system, starts said feedback management device;
The feedback packet generation unit is used to generate feedback packet;
Like each described feedback management device in the claim 7 to 11;
The feedback packet transmitting element is used for, sending all and can sending feedback packet when reaching preset value in the current feedback packet quantity of sending.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110434589.2A CN102546100B (en) | 2011-12-22 | 2011-12-22 | Robustness header compression feedback management method, device and decompression machine |
| PCT/CN2012/078331 WO2013091373A1 (en) | 2011-12-22 | 2012-07-09 | Robust header compression feedback management method and device, and decompressor |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091373A1 (en) * | 2011-12-22 | 2013-06-27 | 中兴通讯股份有限公司 | Robust header compression feedback management method and device, and decompressor |
| CN111800826A (en) * | 2019-08-01 | 2020-10-20 | 维沃移动通信有限公司 | ROHC feedback processing method and user equipment |
| CN114339640A (en) * | 2022-01-11 | 2022-04-12 | 赛特斯信息科技股份有限公司 | ROHC-based 5G voice transmission method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111092844B (en) * | 2018-10-23 | 2023-12-01 | 瑞昱半导体股份有限公司 | Method for performing mode conversion of compression operation and transmission device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968198A (en) * | 2006-06-16 | 2007-05-23 | 华为技术有限公司 | Wireless access loaded packet data service QoS management method. |
| WO2007095967A1 (en) * | 2006-02-27 | 2007-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Flow control mechanism using local and global acknowledgements |
| CN101212404A (en) * | 2006-12-27 | 2008-07-02 | 大唐移动通信设备有限公司 | Robust header compressed group data transmission method and system |
| CN101364937A (en) * | 2007-08-10 | 2009-02-11 | 华为技术有限公司 | Method and system for keeping robust header compression mechanism communication |
| CN102055568A (en) * | 2009-11-02 | 2011-05-11 | 中兴通讯股份有限公司 | Method and device for processing feedback messages |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7907611B2 (en) * | 2008-10-19 | 2011-03-15 | Intel Corporation | Payload header suppression with conditional field suppression |
| CN102045328B (en) * | 2009-10-16 | 2016-08-03 | 中兴通讯股份有限公司 | The method of a kind of robustness header compression pattern switching and decompression machine |
| CN102546100B (en) * | 2011-12-22 | 2017-10-17 | 中兴通讯股份有限公司 | Robustness header compression feedback management method, device and decompression machine |
-
2011
- 2011-12-22 CN CN201110434589.2A patent/CN102546100B/en active Active
-
2012
- 2012-07-09 WO PCT/CN2012/078331 patent/WO2013091373A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007095967A1 (en) * | 2006-02-27 | 2007-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Flow control mechanism using local and global acknowledgements |
| CN1968198A (en) * | 2006-06-16 | 2007-05-23 | 华为技术有限公司 | Wireless access loaded packet data service QoS management method. |
| CN101212404A (en) * | 2006-12-27 | 2008-07-02 | 大唐移动通信设备有限公司 | Robust header compressed group data transmission method and system |
| CN101364937A (en) * | 2007-08-10 | 2009-02-11 | 华为技术有限公司 | Method and system for keeping robust header compression mechanism communication |
| CN102055568A (en) * | 2009-11-02 | 2011-05-11 | 中兴通讯股份有限公司 | Method and device for processing feedback messages |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091373A1 (en) * | 2011-12-22 | 2013-06-27 | 中兴通讯股份有限公司 | Robust header compression feedback management method and device, and decompressor |
| CN111800826A (en) * | 2019-08-01 | 2020-10-20 | 维沃移动通信有限公司 | ROHC feedback processing method and user equipment |
| CN111800826B (en) * | 2019-08-01 | 2023-06-02 | 维沃移动通信有限公司 | ROHC feedback processing method and user equipment |
| CN114339640A (en) * | 2022-01-11 | 2022-04-12 | 赛特斯信息科技股份有限公司 | ROHC-based 5G voice transmission method |
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| WO2013091373A1 (en) | 2013-06-27 |
| CN102546100B (en) | 2017-10-17 |
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