CN102546100B - Robustness header compression feedback management method, device and decompression machine - Google Patents
Robustness header compression feedback management method, device and decompression machine Download PDFInfo
- Publication number
- CN102546100B CN102546100B CN201110434589.2A CN201110434589A CN102546100B CN 102546100 B CN102546100 B CN 102546100B CN 201110434589 A CN201110434589 A CN 201110434589A CN 102546100 B CN102546100 B CN 102546100B
- Authority
- CN
- China
- Prior art keywords
- feedback
- bag
- priority
- sent
- decompression machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Communication Control (AREA)
Abstract
The present invention relates to a kind of robustness header compression feedback management method, device and decompression machine, in the inventive method, the mode of operation of decompression machine is two-way mode, and during using incidentally feedback or bottom link timing feedback, this method includes：Priority flag step, decompression machine marks the priority of newly-generated feedback bag, and priority includes category preferences, wherein, the category preferences highest of STATIC_NACK feedback bags, the category preferences of NACK feedback bags take second place, and the category preferences of ACK feedback bags are minimum；The feedback bag of highest priority is transmittable feedback bag in markers step to be sent, the current feedback bag to be sent of decompression machine mark；Bag forwarding step is fed back, decompression machine sends all transmittable feedback bags.The inventive method, device and decompression machine can improve the compression efficiency under two-way mode.
Description
Technical field
The present invention relates to a kind of robustness head compression technology in moving communicating field, especially a kind of robustness header compression
Feedback management method, device and decompression machine.
Background technology
Due to the limitation of physical condition, Radio Link in GSM compared with wire link transmission rate compared with
Low, the bit error rate is higher.In order to be able to effectively utilize limited wireless signal-path band width resource, robustness head compression technology is introduced
(RObust Header Compress, hereinafter referred to as ROHC).ROHC core is the information between the packet using Business Stream
The next transparent compression of redundancy and decompression are joined directly together the information in the packets headers between node.
ROHC can work under two kinds of different patterns, unidirectional mode (ROHCv1 is U patterns) and two-way mode
(ROHCv1 is O/R patterns).ROHC does not send feedback bag in unidirectional mode, and compressor reducer is usually taken the optimistic mode approached and carried
High compression efficiency, and the mode for taking timing to be migrated to low state improves compression robustness；Under two-way mode, decompression machine root
Needed according to decompression, compression efficiency and robustness are improved by sending feedback bag to the compressor reducer of opposite end.
When ROHC is operated under two-way mode, a feedback bag is generally required from being generated to the compressor reducer that is sent to opposite end
Three processes.First, decompression machine needs to carry out feedback decision-making according to decompression procedure, selects feedback opportunity and generates appropriate feedback
Packet type.Secondly, the occasion of feedback is sent in non-promptness, decompression machine needs to carry out feedback management, selects a kind of rational anti-
Management method is presented, for safeguarding feedback bag order to be sent.Finally, decompression machine needs to carry out feedback bag transmission, by taking
Different feedback bag sending methods is sent to the compressor reducer of opposite end by bag is fed back.
In feedback decision process, decompression machine can take sparse feedback, and the feedback algorithm such as selective ACK feedbacks carries out anti-
Present the selection of Packet type；During feedback management, decompression machine can take the sequence of any-mode progress feedback queue, typically
Take FIFO mode；In feedback transmission process, according to the description as described in feedback bag sending method in RFC3095, ROHC can
So that using feedback is sent in the way of incidentally feeding back, the feedback channel that bottom link can also be used to provide sends ROHC feedbacks.
Due to not explicitly pointing out in the protocol in the feedback management algorithm of ROHC needs, tradition realization, developer
Simplest FIFO mode can be taken to carry out feedback management (as shown in Figure 1).Either what pending upper-layer service is
Type, the order that feedback bag is sent is contracted for fixed output quotas raw sequence consensus with feedback all the time；The quantity that feedback bag is sent is also all the time and instead
Present raw quantity of contracting for fixed output quotas consistent.When upper-layer service is relatively simple or sends the occasion of feedback bag in time using bottom link, make
Can normally it be worked with FIFO.But, when upper-layer service quantity is more and using the occasion incidentally fed back or makes
The occasion of feedback is sent with the timing of bottom link, the compression of peak efficiency can not be only provided using only FIFO.In order to illustrate to make
The problem of existing with FIFO, shown below is a scene of problems.
Problem scenes：Upper-layer service establishes three ROHC solutions respectively according to high speed, middling speed, three different demands of low speed
Press context.Assuming that ROHC only provides incidentally feedback at present and the quantity of descending compressed package is far more than up original packet number
Amount, then local terminal will produce substantial amounts of feedback bag, and the quantity of these feedback bags will be likely to be directly proportional with service rate
Relation.Due to upstream data and incidentally feed back that entrained feedback information volume is limited, local terminal feedback bag to be sent is just possible to
Accumulation, that is, the formation speed for feeding back bag is far longer than the transmission speed of feedback bag.So there may be following three classes problem：
Intangibly add the Network Transmission Delays of feedback bag.
A large amount of feedback bags sent are invalid due to sending delay.
The feedback bag of high speed business is largely sent, and the feedback data packet of middle low speed can not be sent in time, cause Low-rate traffic
Or middling speed business is unable to reach desired compression efficiency.
In addition, when sending feedback using the timing of bottom link, due to the skewness of feedback bag, the feedback of a certain packet stream
Bag is excessive, there is substantial amounts of invalid or redundant feedback information in feedback queue, above the problem of equally possible occur.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of robustness header compression feedback management method, device and decompression
Device, to solve the problem of compression efficiency is low under two-way mode.
To solve above technical problem, the present invention provides a kind of feedback management method of robustness header compression, decompression machine
Mode of operation is two-way mode, and during using incidentally feedback or bottom link timing feedback, this method includes：
Priority flag step, decompression machine marks the priority of newly-generated feedback bag, and it is excellent that the priority includes classification
First level, wherein, the category preferences highest of STATIC_NACK feedback bags, the category preferences of NACK feedback bags take second place, and ACK is anti-
The category preferences for presenting bag are minimum；
The feedback bag of highest priority is in markers step to be sent, the current feedback bag to be sent of decompression machine mark
Transmittable feedback bag；
Bag forwarding step is fed back, the decompression machine sends all transmittable feedback bags.
Further, the priority flag step includes：
The decompression machine judges that the packet stream belonging to the newly-generated feedback bag is wrapped with the presence or absence of feedback of leaving to be sent, and
In the presence of judgement, delete all feedbacks of leaving and wrap；
The decompression machine marks the category preferences of the newly-generated feedback bag.
Further, the priority also includes being used for the transmission for the feedback bag transmission order for representing same category priority
After priority, the category preferences of the mark newly-generated feedback bag, priority flag step also includes：The decompression machine
Mark the transmission priority of the newly-generated feedback bag in the feedback bag of generic priority.
Further, the decompression machine is according to first in first out (FIFO) principle, data package transmission velocity or feedback bag generation
Frequency marker sends priority.
Further, the markers step to be sent includes：
When meeting transmission feedback bag condition, the decompression machine selects the feedback bag of highest priority in feedback bag to be sent
Labeled as transmittable feedback bag；
The decompression machine judges whether current transmittable feedback bag quantity reaches preset value, if it is not, previous step is then returned, it is no
Then perform feedback bag forwarding step.
Further, the step of decompression machine selects the feedback of highest priority in feedback bag to be sent to wrap includes：
The decompression machine judges whether STATIC_NACK feedback bags to be sent, if in the presence of selection sends preferential
Level highest STATIC_NACK feedback bags, otherwise perform next step；
The decompression machine judges whether NACK feedback bags to be sent, if in the presence of selection sends highest priority
NACK feedback bag, otherwise perform next step；
The decompression machine judges whether ACK feedback bags to be sent, if in the presence of selection sends highest priority
ACK feedback bags, otherwise flow terminates.
To solve above technical problem, present invention also offers a kind of robustness header compression feedback management device, the device
Including：
Priority flag unit, the priority that the feedback newly-generated for marking is wrapped, it is preferential that the priority includes classification
Level, wherein, the category preferences highest of STATIC_NACK feedback bags, the category preferences of NACK feedback bags take second place, ACK feedbacks
The category preferences of bag are minimum；
Transmittable indexing unit, the feedback bag for marking highest priority in current feedback bag to be sent is transmittable anti-
Feedback bag.
Further, the priority flag unit only retains last feedback bag of each packet stream.
Further, the priority flag unit includes：
Packet handing module is fed back, for judging that the packet stream belonging to the newly-generated feedback bag is left with the presence or absence of to be sent
Feedback bag, and in the presence of judgement, delete all feedbacks of leaving and wrap；
Priority flag module, the category preferences for marking the newly-generated feedback bag.
Further, the priority also includes being used for the transmission for the feedback bag transmission order for representing same category priority
Priority, the priority flag module is additionally operable to feedback bag of the mark newly-generated feedback bag in affiliated category preferences
In transmission priority.
Further, the transmittable indexing unit includes：
Transmittable feedback packet making module, for meeting transmission feedback bag condition and current transmittable feedback bag quantity not
When reaching preset value, it is transmittable feedback bag to mark the feedback bag of highest priority in feedback bag to be sent；
Bag quantity judge module is fed back, for judging whether current transmittable feedback bag quantity reaches preset value.
To solve above technical problem, present invention also offers a kind of robustness header compression decompression machine, the decompression machine includes：
Condition adjudgement unit, the mode of operation and feedback system current for judging the decompression machine；
Feedback management device control units, for being two-way mode in the mode of operation of the decompression machine, and using incidentally
When feedback or bottom link timing feedback mode, start the feedback management device；
Bag generation unit is fed back, for generating feedback bag；
Feedback management device as described above；
Bag transmitting element is fed back, for when current transmittable feedback bag quantity reaches preset value, sending all transmittable
Feedback bag.
Each feedback bag to be sent is set priority by the present invention, when feedback bag is sent, by comparing
There is feedback bag to be sent in packet stream, according to STATIC_NACK, NACK, ACK priority orders select highest priority
Feedback bag is transmitted, and is finally reached and is taken into account different packet streams, improves the mesh of compression efficiency under ROHC overall performances and two-way mode
's.
Brief description of the drawings
Fig. 1 is feedback management algorithm logic structure chart under FIFO modes；
Fig. 2 is the feedback management method schematic diagram of robustness header compression；
Fig. 3 is the feedback management method building-block of logic of robustness header compression；
Fig. 4 is the process chart that feedback management method is opened；
Fig. 5 is the process chart of priority flag；
Fig. 6 is the transmittable process chart marked；
Fig. 7 is robustness header compression feedback management apparatus module structural representation；
Fig. 8 is the modular structure schematic diagram of robustness header compression decompression machine.
Embodiment
Proposed by the present invention is a kind of feedback management method of robustness header compression, and the mode of operation of decompression machine is two-way mould
Formula, and during using incidentally feedback or bottom link timing feedback, as shown in Fig. 2 this method includes：
Step S401, priority flag step, decompression machine marks the priority of newly-generated feedback bag, the priority bag
Category preferences are included, wherein, the category preferences highest of STATIC_NACK feedback bags, the category preferences of NACK feedback bags
It, the category preferences of ACK feedback bags are minimum；
As shown in figure 3, decompression machine wraps time and the frequency of generation according to feedback, feedback wraps the type and feedback of itself
The parameter informations such as the packet stream type belonging to bag, are that each feedback bag to be sent arranges rational transmission order, delete
Invalid or redundancy feedback bag, so that feedback channel resources are more reasonably utilized, the validity of increase feedback bag, so as to carry
The efficiency of high ROHC overall works.
In Fig. 3, on the one hand, each data packet stream correspond to a stored decompression context, decompression machine can be periodic
The compressed package quantity that statistics is handled using some stored decompression context, so that estimating the corresponding packet stream of the stored decompression context sends speed
Rate.If two-way mode, for the higher packet stream of transmission rate, the speed of its feedback data packet generation also compares accordingly
It is high.On the other hand, it is no retransmission mechanism in ROHC, the data in all packet streams are all only received and dispatched once, decompression machine generation
Feedback bag performance is all the newest status information of decompression machine.For using multiple feedback bags in same stored decompression context
Speech, when last feedback bag generation, the previously generated feedback bag to be sent of the feedback bag is all ineffective
.
In general, when compressor reducer and decompression machine step-out (i.e. asynchronous) cause decompression machine data decompression to fail, decompression
Device based on context can be damaged condition generation STATIC_NACK feedback bag, or NACK feedback bag, wherein STATIC_NACK
Decompression machine static context damage is represented, it needs being sent much sooner.When data decompression success, ACK can be generated anti-
Feedback bag.
Step S402, can be transmitted highest priority in markers step, the current feedback bag to be sent of decompression machine mark
Feedback bag be transmittable feedback bag；
Step S403, feeds back bag forwarding step, and the decompression machine sends all transmittable feedback bags.
Embodiments of the invention are described in detail below in conjunction with accompanying drawing.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
For a decompression machine, feedback management method (as shown in Figure 4) can be selectively opened.Feedback management
The condition that method is opened is two-way mode, is fed back using incidentally feedback or using bottom chain timer.For unidirectional mode
And take bottom link to directly transmit the mode of feedback, then it need not enable feedback management method.
The handling process that 4 pairs of feedback management methods involved in the present invention are opened below in conjunction with the accompanying drawings does further detailed
Description：
Step S101：Feedback management method open detection flow startup, into step S102；
Step S102：The current mode of operations of current ROHC are judged, if ROHC is in two-way mode, into step
S103；If ROHC is in unidirectional mode, feedback management method is not turned on, into step S106；
Step S103：Judge whether current ROHC sends the feedback bag that decompression machine is generated using mode incidentally, if it is,
Then enter step S105；Otherwise step S104 is entered；
Step S104：Judge whether ROHC sends feedback system using the timing of bottom link, if it is, feedback bag is present
The possibility of accumulation is, it is necessary to open feedback management method, into step S105；If using the mode for sending feedback immediately, entered
Step S106；
Step S105：Current ROHC is operated in there may be the occasion of feedback bag accumulation, opens feedback feedback management method,
Into step S106；
Step S106：Feedback feedback management method open detection flow terminates；
It is intelligible, when feedback management method of the present invention need not be opened, using existing process of feedback to feedback wrap into
Row processing.
According to ROHC feedback characteristics, in multiple continuous feedback bags of same packet stream, when feeding back validity and the generation of bag
Between be directly proportional, i.e., more I into feedback bag validity it is stronger.For continuous many bag ack msgs, last can be used to wrap
Ack msg replaces above all ack msgs.The occasion of feedback management method is being opened, feedback management method of the present invention only can
A feedback bag finally arrived is safeguarded for each packet stream, no matter this feedback bag is ACK, NACK or STATIC_NACK.
Bag is fed back for the same class in multiple packet streams, any-mode can be taken to identify its priority.Such as take FIFO mode
Safeguard and specifically send sequence number for each class feedback bag.
The handling process of 5 pairs of priority flags of the present invention is described in further detail below in conjunction with the accompanying drawings：
Step S201：The newly-generated feedback bag of decompression machine, feedback packet priority mark flow startup, into step
S202；
Step S202：Judge whether current ROHC has used feedback management method, if used, then needing to newly-generated
Feedback bag is handled, into step S203；If being not turned on feedback management method, into step S208；
Step S203：Judge to feed back bag with the presence or absence of to be sent leaving in the packet stream belonging to newly-generated feedback bag, such as
Judgement is, into step S204；Otherwise step S205 is entered；
Step S204：According to ROHC feedback characteristics, newly-generated feedback bag validity and priority are above leaving instead
Feedback, will leave feedback bag and all deletes, into step S205；
Step S205：The newly-generated corresponding packet stream of feedback bag is associated, uniquely needs what is sent as the packet stream
Feedback bag, into step S206；
Step S206：The category preferences of the newly-generated feedback bag are marked, into step S208；
Wherein, the category preferences highest of STATIC_NACK feedbacks bag, the category preferences of NACK feedback bags take second place, ACK
The category preferences for feeding back bag are minimum；
Step S207：The transmission priority of the newly-generated feedback bag in the feedback bag of generic priority is marked,
After transmission priority is provided with, into step S208；
In current ROHC examples, set the newly-generated feedback bag excellent in generic using any priority set-up mode
Transmission priority in the feedback bag of first level.It is simplest, it can use FIFO mode that priority is set.Can also be according to not
With the transmission rate of packet stream, the information such as feedback bag generating rate sets priority.
Alternatively it is also possible to which it is excellent to be defaulted as the transmission of the newly-generated feedback bag in the feedback bag of generic priority
First level is identical, i.e., the transmission priority of the STATIC_NACK feedback bags of different packet streams is identical, the NACK feedback bags of different packet streams
Transmission priority is identical, and the transmission priority of the ACK feedback bags of different packet streams is identical.
Step S208：Priority flag flow terminates.
The occasion of feedback management method is being opened, it is necessary to which according to the feedback bag amount being currently carried by, selection priority is most
High feedback bag.According to ROHC feedback characteristics, STATIC_NACK priority is necessarily higher than NACK, NACK priority one
Surely it is higher than ACK.If any multiple in each class feedback bag, then the transmission of each feedback bag pending in all packet streams of comparison is needed
Priority, according to priority tag is sent, selection sends the higher feedback bag of priority.
The handling process of 6 pairs of transmittable marks involved in the present invention is described in further detail below in conjunction with the accompanying drawings：
Step S301：Mark flow startup to be sent, into step S302；
Step S302：Decompression machine meets the condition for sending one or more feedback bag, into step S303；
The condition for sending feedback bag can be feedback timer expiry or incidentally feed back.
Step S303：Judge whether current ROHC uses feedback management method, if used, into step S304；Otherwise,
Into step S311；
Step S304：Judge that current ROHC examples whether there is feedback bag to be sent, if it does, into step
S305；Otherwise, into step S312；
Step S305：Current ROHC examples are judged with the presence or absence of STATIC_NACK feedback bags to be sent, if it does,
Into step S306；Otherwise, into step S307；
Step S306：Highest priority will be sent in the STATIC_NACK feedback bags of current all packet streams of ROHC examples
Feedback bag is set to state to be sent, into step S311；
Step S307：Current ROHC examples are judged with the presence or absence of NACK feedbacks bag to be sent, if it does, into step
S308；Otherwise, into step S309；
Step S308：The feedback bag that highest priority is sent in the NACK feedback bags of current all packet streams of ROHC examples is set
State to be sent is set to, into step S311；
Step S309：Current ROHC examples are judged with the presence or absence of ACK feedbacks bag to be sent, if it does, into step
S310, otherwise into step S12；
Step S310：The feedback bag that highest priority is sent in the ACK feedback bags of current all packet streams of ROHC examples is set
State to be sent is set to, into step S311；
Above step S304 to S310 process is that decompression machine selection is to be sent when meeting transmission feedback bag condition
The feedback of highest priority is wrapped and labeled as the process of transmittable feedback bag in feedback bag.
Step S311：Judge whether current transmittable feedback bag quantity reaches preset value, if it is, into step S312；
Otherwise, return to step S304；
Step S312：Transmittable mark flow terminates.
Transmittable mark flow sends all transmittable feedback bags after terminating；
In order to realize above method, present invention also offers a kind of robustness header compression feedback management device, such as Fig. 7 institutes
Show, the device includes：
Priority flag unit, the priority that the feedback newly-generated for marking is wrapped, it is preferential that the priority includes classification
Level, wherein, the category preferences highest of STATIC_NACK feedback bags, the category preferences of NACK feedback bags take second place, ACK feedbacks
The category preferences of bag are minimum；
Transmittable indexing unit, is transmittable shape for marking the feedback bag of highest priority in current feedback bag to be sent
State.
The priority flag unit only retains and marks last feedback bag of each packet stream, it is preferable that this is preferential
Level indexing unit includes：
Packet handing module is fed back, for judging that the packet stream belonging to the newly-generated feedback bag is left with the presence or absence of to be sent
Feedback bag, and in the presence of judgement, delete all feedbacks of leaving and wrap；
Priority flag module, the category preferences for marking the newly-generated feedback bag.
Preferably, the priority also includes being used to represent that the transmission for feeding back bag transmission order of same category priority to be excellent
First level, the priority flag module is additionally operable to the feedback bag for marking this newly-generated in the feedback bag of affiliated category preferences
Transmission priority.
Under particular case, same category priority feedback bag transmission priority may be configured as it is identical.
Preferably, the transmittable indexing unit includes：
Transmittable feedback packet making module, for meeting transmission feedback bag condition and current transmittable feedback bag quantity not
When reaching preset value, it is transmittable feedback bag to mark the feedback bag of highest priority in feedback bag to be sent；
Bag quantity judge module is fed back, for judging whether current transmittable feedback bag quantity reaches preset value.
In addition, present invention also offers a kind of robustness header compression decompression machine, as shown in figure 8, the decompression machine includes：
Condition adjudgement unit, the mode of operation and feedback system current for judging the decompression machine；
Feedback management device control units, for being two-way mode in the mode of operation of the decompression machine, and using incidentally
When feedback or bottom link timing feedback mode, start the feedback management device；
Bag generation unit is fed back, for generating feedback bag；
Feedback management device, for carrying out feedback management, specifically as previously described；
Bag transmitting element is fed back, for when current transmittable feedback bag quantity reaches preset value, sending all transmittable
Feedback bag.
Each feedback bag to be sent is set priority by the present invention, when feedback bag is sent, by comparing
There is feedback bag to be sent in packet stream, according to STATIC_NACK, NACK, ACK priority orders select highest priority
Feedback bag is transmitted, and is finally reached and is taken into account different packet streams, improves ROHC overall performances and the compression efficiency under two-way mode
Purpose.
In addition, time, frequency characteristic and feedback that generation can be wrapped according to feedback wrap the parameter informations such as the type of itself,
Invalid or redundancy feedback bag is deleted, and rational transmission order is arranged for remaining feedback bag to be sent, is made
Had the advantage that with the method：
Add the validity of feedback bag.
The ageing of feedback bag is ensure that to greatest extent.
Load balancing, reasonably have adjusted the compression efficiency between different packet streams.
Alleviate that compressor processes are invalid and burden of redundant feedback to a certain extent；
Enable to operate in the feedback bags of the ROHC under two-way mode and play its effect as much as possible, i.e., converged to opposite end compressor reducer
The state for reporting local terminal decompression machine current, so as to improve the compression efficiency of packet stream on the whole.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits to realize.Accordingly
Each module/unit in ground, above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
1. a kind of feedback management method of robustness header compression, it is characterised in that the mode of operation of decompression machine is two-way mode, and
During using incidentally feedback or bottom link timing feedback, this method includes：
Priority flag step, decompression machine marks the priority of newly-generated feedback bag, and the priority includes category preferences,
Wherein, the category preferences highest of STATIC_NACK feedbacks bag, the category preferences of NACK feedback bags take second place, ACK feedback bags
Category preferences are minimum；
The feedback bag of highest priority is to send out in markers step to be sent, the current feedback bag to be sent of decompression machine mark
Feedback is sent to wrap；
Bag forwarding step is fed back, the decompression machine sends all transmittable feedback bags.
2. the method as described in claim 1, it is characterised in that the priority flag step includes：
The decompression machine judges that the packet stream belonging to the newly-generated feedback bag leaves feedback bag with the presence or absence of to be sent, and is sentencing
In the presence of disconnected, delete all feedbacks of leaving and wrap；
The decompression machine marks the category preferences of the newly-generated feedback bag.
3. method as claimed in claim 2, it is characterised in that：The priority also includes being used to represent same category priority
Feedback bag transmission order transmission priority, after category preferences of the mark newly-generated feedback bag, priority mark
Note step also includes：The decompression machine marks the transmission of the newly-generated feedback bag in the feedback bag of generic priority excellent
First level；
The feedback bag of highest priority refers to class in the current feedback bag to be sent in the current feedback bag to be sent
Other priority and the equal highest feedback bag of transmission priority.
4. method as claimed in claim 3, it is characterised in that：The decompression machine is according to fifo fifo principle, packet
Transmission rate or feedback bag generation frequency marker send priority.
5. the method as described in claim 1, it is characterised in that the markers step to be sent includes：
When meeting transmission feedback bag condition, the decompression machine selects the feedback packet making of highest priority in feedback bag to be sent
For transmittable feedback bag；
The decompression machine judges whether current transmittable feedback bag quantity reaches preset value, if it is not, then returning to previous step, otherwise holds
Row feedback bag forwarding step.
6. method as claimed in claim 5, it is characterised in that the decompression machine selects in feedback bag to be sent priority most
The step of high feedback is wrapped includes：
The decompression machine judges whether STATIC_NACK feedback bags to be sent, if in the presence of selection sends priority most
High STATIC_NACK feedback bags, otherwise perform next step；
The decompression machine judges whether NACK feedback bags to be sent, if in the presence of selection sends highest priority
NACK feedback bags, otherwise perform next step；
The decompression machine judges whether ACK feedback bags to be sent, if in the presence of selection sends the ACK of highest priority
Feedback bag, otherwise flow terminates.
7. a kind of robustness header compression feedback management device, it is characterised in that the device includes：
Priority flag unit, the priority that the feedback newly-generated for marking is wrapped, the priority includes category preferences, its
In, the category preferences highest of STATIC_NACK feedback bags, the category preferences of NACK feedback bags take second place, the class of ACK feedback bags
Other priority is minimum；
Transmittable indexing unit, is transmittable feedback for marking the feedback bag of highest priority in current feedback bag to be sent
Bag.
8. device as claimed in claim 7, it is characterised in that the priority flag unit only retains the last of each packet stream
One feedback bag.
9. device as claimed in claim 7, it is characterised in that the priority flag unit includes：
Packet handing module is fed back, for judging that the newly-generated packet stream belonging to wrapping of feeding back leaves feedback with the presence or absence of to be sent
Bag, and in the presence of judgement, delete all feedbacks of leaving and wrap；
Priority flag module, the category preferences for marking the newly-generated feedback bag.
10. device as claimed in claim 9, it is characterised in that：The priority also includes being used to represent that same category is preferential
The transmission priority of the feedback bag transmission order of level, the priority flag module is additionally operable to mark the newly-generated feedback bag to exist
Transmission priority in the feedback bag of affiliated category preferences；The feedback of highest priority in the current feedback bag to be sent
Bag refers to that category preferences feed back bag with the equal highest of priority is sent in the feedback bag currently to be sent.
11. device as claimed in claim 7, it is characterised in that the transmittable indexing unit includes：
Transmittable feedback packet making module, for sending feedback bag condition and current transmittable feedback bag quantity is not up to meeting
During preset value, it is transmittable feedback bag to mark the feedback bag of highest priority in feedback bag to be sent；
Bag quantity judge module is fed back, for judging whether current transmittable feedback bag quantity reaches preset value.
12. a kind of robustness header compression decompression machine, it is characterised in that the decompression machine includes：
Condition adjudgement unit, the mode of operation and feedback system current for judging the decompression machine；
Feedback management device control units, is two-way mode for the mode of operation in the decompression machine, and using incidentally feeding back
Or during bottom link timing feedback mode, start the feedback management device；
Bag generation unit is fed back, for generating feedback bag；
Feedback management device as any one of claim 7 to 11；
Bag transmitting element is fed back, for when current transmittable feedback bag quantity reaches preset value, sending all transmittable feedbacks
Bag.
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)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102546100A CN102546100A (en) | 2012-07-04 |
| CN102546100B true CN102546100B (en) | 2017-10-17 |
Family
ID=46352127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110434589.2A Active CN102546100B (en) | 2011-12-22 | 2011-12-22 | Robustness header compression feedback management method, device and decompression machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102546100B (en) |
| WO (1) | WO2013091373A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN114339640B (en) * | 2022-01-11 | 2023-04-07 | 赛特斯信息科技股份有限公司 | ROHC-based 5G voice transmission method |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102546100A (en) | 2012-07-04 |
| WO2013091373A1 (en) | 2013-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6275751B2 (en) | Improved acknowledgment and retransmission mechanism | |
| CN103905300B (en) | A kind of data message sending method, equipment and system | |
| CN101895372B (en) | Data transmission method in radio link control layer acknowledged mode | |
| CN101692740B (en) | Wireless network multi-path routing network transmission method | |
| CN102546100B (en) | Robustness header compression feedback management method, device and decompression machine | |
| CN101179564B (en) | Link layer automatic request retransmission based TCP packet header compression method and system thereof | |
| CN103718520A (en) | Method, apparatus, and system for processing data packet | |
| CN106656799B (en) | A kind of message forwarding method and device based on wireless mesh network | |
| CN101848171B (en) | Data transmission method based on GRE tunnel, device and system | |
| CN106411560A (en) | Data transmission method and device | |
| CN107483349A (en) | The method and apparatus of transmitting data stream | |
| CN103404100B (en) | The control method of relay, relay and network system | |
| CN107733577A (en) | The method and apparatus for carrying out retransmission process | |
| CN106130894A (en) | The creation method of a kind of business function chain and system | |
| CN102647361A (en) | Transmitting and receiving methods for data packet, transmitting apparatus and receiving apparatus | |
| Zhou et al. | Fountain code based adaptive multi-hop reliable data transfer for underwater acoustic networks | |
| CN105162732B (en) | Create the method, apparatus of ECP Extended Capabilities Port | |
| Gao et al. | Performance analysis of a cognitive radio network with imperfect spectrum sensing | |
| CN107682434A (en) | A kind of underwater sensor network framework and its implementation | |
| CN102118792A (en) | Method and device for transmitting data packets | |
| CN100417156C (en) | A method and system for implementing data transmission in flow control transmission protocol | |
| JP6929946B2 (en) | Data transmission method, device, transmitting end, receiving end and system | |
| CN107465533A (en) | Method for releasing resource and device in business function chain | |
| CN109089331A (en) | A kind of method and wireless access point for realizing more radio frequency links in a wireless local area network | |
| CN103929778A (en) | Data grading transmission method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |