CN109219083A - Optimization method and system in a kind of conversion of robustness header compression mode - Google Patents
Optimization method and system in a kind of conversion of robustness header compression mode Download PDFInfo
- Publication number
- CN109219083A CN109219083A CN201710546694.2A CN201710546694A CN109219083A CN 109219083 A CN109219083 A CN 109219083A CN 201710546694 A CN201710546694 A CN 201710546694A CN 109219083 A CN109219083 A CN 109219083A
- Authority
- CN
- China
- Prior art keywords
- mode
- compressed package
- type
- decompression machine
- compressor
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Optimization method and system in a kind of conversion of robustness header compression mode, the method includes the steps: compressor receives the feedback packet for the target type that decompression machine is sent, state transition is converted into target pattern to PENDING state, mode, and sends first kind compressed package to decompression machine；Decompression machine receives first kind compressed package, and state transition is converted to target pattern to PENDING state, mode；When the quantity for the first kind compressed package that decompression machine receives within the first threshold time reaches number of thresholds or reaches the first threshold time, the confirmation feedback packet for sending target type arrives compressor；After compressor receives the confirmation feedback packet of target type, by state transition to DONE state, and Second Type compressed package is sent to decompression machine；After decompression machine receives Second Type compressed package, by state transition to DONE state, mode conversion is completed.The present invention is optimized by the feedback procedure to decompression machine, and can reduce decompression machine in mode transition procedure is the transport overhead and computation complexity that compressed package sends feedback packet.
Description
Technical field
The present invention relates to robustness head compression technology fields, more particularly in a kind of conversion of robustness header compression mode
Optimization method and system.
Background technique
Due to the limitation of physical condition, Radio Link in mobile communication system compared with wire link transmission rate compared with
Low, the bit error rate is higher.In order to efficiently use limited wireless signal-path band width resource, robustness head compression technology is introduced
(Robust Header Compress, hereinafter referred to as ROHC).The core of ROHC is the information between the grouping using Business Stream
Redundancy carrys out transparent compression and decompression and is connected directly the information in the packets headers between node.ROHC technology is by (the internet IETF
Engineering task force) RFC3095 document be described, and it is revised 2 months IETF in 2007, revises document
It is RFC4815.
Mode is a very important concept in ROHC.Three kinds of operation modes are defined in RFC3095 agreement, are respectively
Unidirectional mode (Unidirectional mode, hereinafter referred to as U mode), bidirectional optimistic mode (Bidirectional
Optimistic mode, hereinafter referred to as O mode), bidirectional reliable mode (Bidirectional Reliable mode, with
It is referred to as R mode down).
U mode designs on the not available chain road of feedback channel, and packet data package can only be sent to a direction, that is, compresses
Device is to decompression machine direction.The state change of compressor depends primarily on random word in a large amount of periodically time-out and packet stream
The variation of section.Due to needing to be periodically flushed and lack the feedback mechanism for Fault recovery, so the compression efficiency phase of U mode
It is relatively low for other both of which.The compression of ROHC must be since U mode, when compressor receives an instruction mould
It can start to be converted to other modes after the feedback packet of formula conversion.
With U mode there are similar place, difference is there are the feedback channel of a decompression machine to compressor O mode,
For error recovery request and important updating context.Periodic update is not used under O mode.The target of O mode exists
In improve to greatest extent compression efficiency and it is less use feedback channel, it reduce due to resident mistake or context without
Wrong packet caused by effect.
There are biggish differences for R mode and both the above mode, most important to distinguish a large amount of uses for being feedback channel
And prevent step-out between compressor and decompression machine context.The transmission fed back under R mode is for confirming all contexts
It updates, the update including sequence-number field.Aiming at for R mode improves robustness to the greatest extent, prevents from or reduce to lose
The further expansion of packet and wrong packet utmostly reduces the probability of context deactivation when packet loss or wrong packet occurs.
It can change between each different mode, mode conversion is sent from decompression machine to compressor carries CRC check
The feedback packet of field is initiated.Three kinds of operation modes are described in 5.6 sections of RFC3095 mutually to be converted.Fig. 1 is existing skill
The mode transition diagram of three kinds of operation modes in art.
In addition in 3.1 sections of 5.6 sections of RFC3095 and RFC4815, for Optimizing Mode flow path switch, agreement is being pressed
Contracting device side introduces two state variables, is C_MODE (compressor pattern variable) and C_TRANS (compressor mode conversion respectively
State variable).The value of C_MODE is in { U, O, R }, and meaning of parameters is respectively U mode, O mode and R mode, and C_MODE's is first
Initial value is U.The value of C_TRANS is in { P, D }, and wherein meaning of parameters is P (PENDING), D (DONE), and C_TRANS's is initial
Value is D.
Two state variables have also been introduced in decompression machine side, are D_MODE (decompression machine pattern variable) and D_TRANS respectively
(decompression machine mode transition status variable).The value of D_MODE is in { U, O, R }, initial value U；The value of D_TRANS is in { I
(Initiated), P, D } in, initial value D.
The mode flow path switch of ROHC is sent the feedback packet initiation for carrying expectation target mode by decompression machine, in current association
It in addition to U mode to the conversion of O mode is completed by a piece of news in view, the conversion of other modes is all made of the side of three-way handshake
Formula is completed.All by above-mentioned state-variable description, agreement provides initial, intermediate and end-state in three-way handshake:
C_MODE and D_MODE indicates the immediate status of compressor and decompression machine；
PENDING in C_TRANS indicates to receive the state transition request of decompression machine；
DONE in C_TRANS indicates that compressor side mode flow path switch finishes；
INITIATED in D_TRANS indicates that decompression machine has initiated mode switch request at this time；
PENDING in D_TRANS indicates that decompression machine has received the mode switch request response of compressor sending；
DONE in D_TRANS indicates that decompression machine side form formula flow path switch finishes.
Fig. 2 is the conversion process figure that R mode arrives O mode in the prior art, compressor (Compressor) and is decompressed in Fig. 2
The original state of device (Decompressor) is DONE state, and the conversion of R mode to O mode is initiated by decompression machine.Decompression machine shape
State moves to Initiated state, and sends the feedback packet of O type to compressor；After compressor receives the feedback packet of O type, shape
State moves to PENDING state, and mode is converted to O mode, and sends the compressed package of IR/IR-DYN/UOR-2 type to decompression machine；
After decompression machine receives the compressed package of IR/IR-DYN/UOR-2 type, mode is converted to O mode, and sends the confirmation feedback of O type
Wrap compressor；After compressor receives the confirmation feedback packet of O type, state transition sends UO-0, UO-1 type to DONE state
Compressed package to decompression machine；After decompression machine receives the compressed package of UO-0, UO-1 type, state transition terminates mould to DONE
Formula conversion process.
Also, it is pointed out in the 5.6.1 chapters and sections of RFC3095, when D_TRANS is I, decompression machine is what each was received
Compressed package sends a NACK with CRC option or ACK feedback packet.
It can be seen from the above description that existing mode transition procedure, decompression machine needs the pressure received for each
Contracting packet sends feedback packet, this needs great transport overhead, and before sending feedback packet, it is also necessary to CRC calculating is carried out, this
Also it will increase computation complexity.
Summary of the invention
In order to solve the shortcomings of the prior art, the purpose of the present invention is to provide a kind of robustness header compression modes to turn
Optimization method and system in changing, for R mode to O mode and other modes into the conversion process of U mode, to decompression
The feedback procedure of device optimizes, so that reducing decompression machine in mode transition procedure is the transport overhead that compressed package sends feedback packet
And computation complexity.
To achieve the above object, the optimization method in robustness header compression mode conversion provided by the invention, including it is following
Step:
Compressor receives the feedback packet for the target type that decompression machine is sent, and state transition to PENDING state, mode are converted
For target pattern, and first kind compressed package is sent to decompression machine；Decompression machine receives first kind compressed package, and state transition is arrived
PENDING state, mode are converted to target pattern；The quantity for the first kind compressed package that decompression machine receives within the first threshold time
When reaching number of thresholds or reaching the first threshold time, the confirmation feedback packet for sending target type arrives compressor；Compressor receives
After the confirmation feedback packet of target type, by state transition to DONE state, and Second Type compressed package is sent to decompression machine；Decompression machine
After receiving Second Type compressed package, by state transition to DONE state, mode conversion is completed.
Further, before compressor sends first kind compressed package to decompression machine, if reach the second threshold time,
Compressor does not receive first kind compressed package, then terminates the mode transition procedure of compressor, or construction first kind compressed package
It is sent to decompression machine.
Further, the target type is O type, R type or U type；The target pattern be O mode, R mode or
U mode.
Further, the first kind compressed package is the compressed package of IR, IR-DYN or the UOR-2 type with O mode；Institute
State the compressed package that Second Type compressed package is UO-0 or UO-1 type.
To achieve the above object, the optimization system in robustness header compression mode conversion provided by the invention, including, decompression
Device and compressor,
The decompression machine sends target type to the compressor according to the time threshold and amount threshold of setting
Confirmation feedback packet；The compressor, according to the time threshold of setting, state of a control migration and mode conversion.
Further, the decompression machine, including, the first sending module, the first receiving module, the first feedback module count
Unit, the first timing unit and the first judging unit, wherein
The counting unit, for counting the quantity of the first kind compressed package received；First timing unit, is used for
Receive the timing of first kind compressed package；First judging unit, according to the statistical result of the counting unit and described
One timing unit time judged whether that the confirmation feedback packet for sending target type arrived compressor.
Further, the compressor, including, the second sending module, the second receiving module, the second feedback module, second
Timing unit and second judgment unit, wherein
Second timing unit for carrying out timing to the time for not receiving first kind compressed package, and judges whether
Reach the second threshold time；The second judgment unit reaches for judging the time for receiving first kind compressed package
When the second threshold time, end mode conversion process, or construction first kind compressed package is selected to be sent to decompression machine.
Further, if mode is converted to the conversion of R mode to O mode, the first kind compressed package is IR, IR-
The compressed package of DYN or the UOR-2 type with O mode.
Optimization method and system in robustness header compression mode conversion of the invention pass through in mode transition procedure
Judgement receives quantity and the time of the compressed package of IR/IR-DYN/UOR-2 type, selects the suitable opportunity for sending feedback packet, from
And be that compressed package sends a small amount of feedback packet, reduce transport overhead and computation complexity in mode transition procedure.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, and with it is of the invention
Embodiment together, is used to explain the present invention, and is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the mode transition diagram of three kinds of operation modes in the prior art；
Fig. 2 is conversion process figure of the R mode to O mode in the prior art；
Fig. 3 is the optimization method flow chart in robustness header compression mode according to the present invention conversion；
Fig. 4 is compressor mode conversion work flow chart according to the present invention；
Fig. 5 is decompression machine mode conversion work flow chart according to the present invention；
Fig. 6 is decompression machine according to the present invention mode conversion work flow chart under timer timeout condition；
Fig. 7 is compressor according to the present invention mode conversion work flow chart under timer timeout condition；
Fig. 8 is the optimization system structural block diagram in robustness header compression mode according to the present invention conversion.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 3 is the optimization method flow chart in robustness header compression mode according to the present invention conversion, below with reference to figure
3, the optimization method in robustness header compression mode conversion of the invention is described in detail.
In the present embodiment, the original state of compressor and decompression machine is DONE state (D state), conversion of the R mode to O mode
It is initiated by decompression machine.
Firstly, in step 301, decompression machine state transition sends the feedback packet of O type to compression to Initiated state
Device；
In step 302, after compressor receives the feedback packet of O type, state transition to PENDING state, mode is converted to O mould
Formula, and the compressed package of IR/IR-DYN/UOR-2 type is sent to decompression machine；
In the step, the compressor in PENDING state cannot send the compressed package of UO-0, UO-1 type.
The compressed package of IR/IR-DYN/UOR-2 type refers to, the compressed package of IR, IRDYN or the UOR-2 with O mode.
In step 303, after decompression machine receives the compressed package of IR/IR-DYN/UOR-2 type, state transition to PENDING
State, mode are converted to O mode, if the quantity of the compressed package of the IR/IR-DYN/UOR-2 type received within the first threshold time
Reach number of thresholds, then the confirmation feedback packet for sending O type arrives compressor；
In the step, first threshold time and number of thresholds can be determined using optimistic approach method.
In step 304, compressor receive O type confirmation feedback packet after, state transition to DONE state, and send UO-0,
The compressed package of UO-1 type is to decompression machine；
In step 305, after decompression machine receives the compressed package of UO-0, UO-1 type, state transition terminates simultaneously to DONE state
Mode transition procedure.
In the present embodiment, it is illustrated by taking the conversion of the mode of R mode to O mode as an example, in lower half of mould of decompression machine
In formula conversion process, after the compressed package for receiving IR/IR-DYN/UOR-2 type, the state transition of decompression machine is arrived
PENDING state, as original PENDING state add a kind of new use rule, when decompression machine is in PENDING state, no
The compressed package of the IR/IR-DYN/UOR-2 type for needing to receive for each sends feedback packet (including CRC), in decompression machine from pressure
After contracting device receives the compressed package of suitable IR/IR-DYN/UOR-2 type, feedback packet just is sent to compressor, thus for compression
Packet sends a small amount of feedback packet, reduces transport overhead and computation complexity (including CRC is calculated) in mode transition procedure.When
So, other modes, which are transformed into U mode, can also use the above method.
Fig. 4 is compressor mode conversion work flow chart according to the present invention, below with reference to Fig. 4 to compressor of the invention
Mode transition procedure be described in detail.
In step 401, compressor enters compression process, and original state is DONE state；
In step 402, after compressor receives the feedback packet of O type, 403 are entered step；
In step 403, the state transition of compressor is to PENDING state, while mode is converted to O mode；
In step 404, compressor sends the compressed package of IR/IR-DYN/UOR-2 type to decompression machine；
In step 405, after compressor receives the confirmation feedback packet of the O type of decompression machine transmission, step 406 is gone to；
In step 406, the state transition of compressor sends the compressed package of UO-0, UO-1 type to decompression to DONE state
Device；
In step 407, compressor mode transition procedure terminates.
Fig. 5 is decompression machine mode conversion work flow chart according to the present invention, below with reference to Fig. 5 to decompression machine of the invention
Mode transition procedure be described in detail.
In step 501, decompression machine enters decompression process, and original state is DONE state；
In step 502, decompression machine initiates mode conversion, and state transition sends O class to Initiated state, and to compressor
The feedback packet of type；
In step 503, if decompression machine receives the compressed package for the IR/IR-DYN/UOR-2 type that compressor sends over,
504 are entered step, if decompression machine receives other types of compressed package other than IR/IR-DYN/UOR-2 type, is entered step
505；
In step 504, decompression machine state transition to PENDING state, while mode are converted to O mode, and start first
Timer is timed, and starting counter is counted, while entering step 506；
In step 505, decompression machine decompresses the compressed package received；
In step 506, the number of the compressed package of the IR/IR-DYN/UOR-2 type received within the first threshold time is counted
Whether amount reaches number of thresholds, is to enter step 507 while restarting counter, otherwise goes back to step 506 and continue to add up
Statistics；
In step 507, decompression machine feeds back packet to the confirmation that compressor sends O type；
509 are entered step if decompression machine receives the compressed package of UO-0, UO-1 type in step 508, if decompression machine is received
Other types of compressed package other than to UO-0, UO-1 type, then enter step 505；
In step 509, the state transition of decompression machine to DONE state, decompression machine mode transition procedure terminates.
Fig. 6 is decompression machine according to the present invention mode conversion work flow chart under timer timeout condition, below with reference to
Fig. 6, to decompression machine of the invention, mode transition procedure is described in detail under timer timeout condition.
In step 601, decompression machine enters decompression process, and original state is DONE state；
In step 602, decompression machine initiates mode conversion, and state transition sends O class to Initiated state, and to compressor
The feedback packet of type；
In step 603, if decompression machine receives the compressed package for the IR/IR-DYN/UOR-2 type that compressor sends over,
604 are entered step, if decompression machine receives other types of compressed package other than IR/IR-DYN/UOR-2 type, is entered step
605；
In step 604, decompression machine state transition to PENDING state, mode is converted to O mode, and starts the first timing
Device is timed, and starting counter is counted, while entering step 606；
In step 605, decompression machine decompresses the compressed package received；
In step 606, if reach the first threshold time, the compression for the IR/IR-DYN/UOR-2 type that decompression machine receives
The quantity of packet is not up to number of thresholds, then enters step 607 and simultaneously close off counter；
In step 607, decompression machine feeds back packet to the confirmation that compressor sends O type；
609 are entered step if decompression machine receives the compressed package of UO-0, UO-1 type in step 608, if decompression machine is received
Other types of compressed package other than to UO-0, UO-1 type, then enter step 605；
In step 609, the state transition of decompression machine to DONE state, decompression machine mode transition procedure terminates.
When converting from R mode execution mode, if successfully arriving at compressor without feedback information, state transition will not
Complete, compressor can stateful deadlock risk.Migration between U mode and O mode, can also have risk.And in this reality
It applies in example, by the way that first timer is arranged, can regularly send feedback packet while transmission infrequently is fed back and wrapped, from
And evade in mode transition procedure, due to not receiving feedback packet, the risk of compressor generating state deadlock.
Fig. 7 is compressor according to the present invention mode conversion work flow chart under timer timeout condition, below with reference to
Fig. 7, to compressor of the invention, mode transition procedure is described in detail under timer timeout condition.
In step 701, compressor enters compression process, and original state is DONE state；Compressor receives the feedback of O type
Packet, enters step 702；
In step 702, the state transition of compressor is to PENDING state, and mode is converted to O mode, and at the same time entering step
Rapid 703；
In step 703, compressor starting second timer is timed, if reach the second threshold time, compressor is not
The compressed package for receiving IR/IR-DYN/UOR-2 type, then enter step 704 or step 705；
Decompression machine is sent in the compressed package of step 704, compressor construction IR/IR-DYN/UOR-2 type；Compressor is received
After the confirmation feedback packet of the O type sent to decompression machine, step 705 is gone to；
In step 705, the state transition of compressor sends the compressed package of UO-0, UO-1 type to decompression to DONE state
Device；Compressor mode transition procedure terminates.
In the present embodiment, it by the way that second timer is arranged, avoids not receiving IR/IR-DYN/UOR-2 type for a long time
Compressed package, caused by compressor state deadlock risk, and by construction IR/IR-DYN/UOR-2 type compressed package, energy
Enough prevent the state deadlock risk of decompression machine.
Fig. 8 is the optimization system structural block diagram in robustness header compression mode according to the present invention conversion, as shown in figure 8,
Optimization system 800 in robustness header compression mode conversion of the invention, comprising: decompression machine 810 and compressor 820, wherein
Decompression machine 810, comprising: the first sending module 811, the first receiving module 812 and the first feedback module 813, wherein
First sending module 811 feeds back packet to compressor 820 for sending the confirmation of feedback packet and O type of O mode；
First receiving module 812, for receive compressor 820 transmission IR/IR-DYN/UOR-2 type compressed package and
The compressed package of UO-0, UO-1 type；
First feedback module 813 controls decompression machine 810 for the reception result according to the first receiving module 812
Mode conversion between state transition and U, O, R between INITIATED, PENDING and DONE.
Further, after the first receiving module 812 receives the compressed package of IR/IR-DYN/UOR-2 type, decompression machine
To PENDING state, mode is converted to O mode for 810 state transitions；When the first receiving module 812 receives UO-0, UO-1 type
After compressed package, 810 state transition of decompression machine to DONE state, mode conversion end.
First feedback module 813, further includes: counting unit 814, the first timing unit 815 and the first judging unit 816,
Wherein,
Counting unit 814, for counting whether the quantity of compressed package of the IR/IR-DYN/UOR-2 type received reaches threshold
It is worth quantity；
First timing unit 815 carries out timing for the time to the compressed package for receiving IR/IR-DYN/UOR-2 type,
And judge whether to reach the first threshold time；
First judging unit 816, for according to the statistical result of counting unit 814 and the timing of the first timing unit 815
As a result, judging whether that the confirmation feedback packet for sending O type arrives compressor 820.
Further, the quantity of the compressed package of the IR/IR-DYN/UOR-2 type received within the first threshold time reaches
Number of thresholds, or the quantity of the compressed package of IR/IR-DYN/UOR-2 type that while reaching the first threshold time receives are not up to
Number of thresholds, the confirmation feedback packet that the first feedback module 813 sends O type arrive compressor 820.
Compressor 820, comprising: the second sending module 821, the second receiving module 822 and the second feedback module 823, wherein
Second sending module 821, for sending the compressed package and UO-0, UO-1 type of IR/IR-DYN/UOR-2 type
Compressed package is to decompression machine 810；
The confirmation of second receiving module 822, the feedback packet and O type of the O mode for receiving the transmission of decompression machine 810 is fed back
Packet；
Second feedback module 823 controls compressor 820 for the reception result according to the second receiving module 822
Mode conversion between state transition and U, O, R between INITIATED, PENDING and DONE.
Further, after the second receiving module 822 receives the feedback packet of O mode, 820 state transition of compressor is arrived
PENDING state, mode are converted to O mode；After the second receiving module 822 receives the confirmation feedback packet of O type, compressor
820 state transitions are to DONE state, mode conversion end.
Second feedback module 823, further includes: the second timing unit 824 and second judgment unit 825, wherein
Second timing unit 824, carry out by the time to the compressed package for not receiving IR/IR-DYN/UOR-2 type based on
When, and judge whether to reach the second threshold time；
The time of second judgment unit 825, the compressed package for ought not receive IR/IR-DYN/UOR-2 type reaches second
When threshold time, end mode conversion process, or the compressed package of construction IR/IR-DYN/UOR-2 type is selected to be sent to decompression
Device 810.
Optimization method and system in robustness header compression mode conversion of the invention pass through in mode transition procedure
Judgement receives quantity and the time of the compressed package of IR/IR-DYN/UOR-2 type, selects the suitable opportunity for sending feedback packet, from
And be that compressed package sends a small amount of feedback packet, reduce transport overhead and computation complexity in mode transition procedure.
Those of ordinary skill in the art will appreciate that: the foregoing is only a preferred embodiment of the present invention, and does not have to
In the limitation present invention, although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art
For, still can to foregoing embodiments record technical solution modify, or to part of technical characteristic into
Row equivalent replacement.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all include
Within protection scope of the present invention.
Claims (8)
1. the optimization method in a kind of robustness header compression mode conversion, which comprises the following steps:
Compressor receives the feedback packet for the target type that decompression machine is sent, and state transition is converted to mesh to PENDING state, mode
Mark mode, and first kind compressed package is sent to decompression machine；
Decompression machine receives first kind compressed package, and state transition is converted to target pattern to PENDING state, mode；
The quantity for the first kind compressed package that decompression machine receives within the first threshold time reaches number of thresholds or reaches the first threshold
When being worth the time, the confirmation feedback packet for sending target type arrives compressor；
After compressor receives the confirmation feedback packet of target type, by state transition to DONE state, and Second Type compressed package is sent
To decompression machine；
After decompression machine receives Second Type compressed package, by state transition to DONE state, mode conversion is completed.
2. the optimization method in robustness header compression mode conversion according to claim 1, which is characterized in that
Before compressor sends first kind compressed package to decompression machine, if reach the second threshold time, compressor is not received
First kind compressed package then terminates the mode transition procedure of compressor, or construction first kind compressed package is sent to decompression machine.
3. the optimization method in robustness header compression mode conversion according to claim 1, which is characterized in that
The target type is O type, R type or U type；The target pattern is O mode, R mode or U mode.
4. the optimization method in robustness header compression mode conversion according to claim 1, which is characterized in that
The first kind compressed package is the compressed package of IR, IR-DYN or the UOR-2 type with O mode；The Second Type pressure
Contracting packet is the compressed package of UO-0 or UO-1 type.
5. the optimization system in a kind of robustness header compression mode conversion, including, decompression machine and compressor, which is characterized in that
The decompression machine sends the confirmation of target type to the compressor according to the time threshold and amount threshold of setting
Feedback packet；
The compressor, according to the time threshold of setting, state of a control migration and mode conversion.
6. the optimization system in robustness header compression mode conversion according to claim 5, which is characterized in that the decompression
Device, including, the first sending module, the first receiving module, the first feedback module, counting unit, the first timing unit and first are sentenced
Disconnected unit, wherein
The counting unit, for counting the quantity of the first kind compressed package received；
First timing unit, for receiving the timing of first kind compressed package；
First judging unit, according to the statistical result of the counting unit and the first timing unit time, judgement is
The no confirmation feedback packet for sending target type arrives compressor.
7. the optimization system in robustness header compression mode conversion according to claim 5, which is characterized in that the compression
Device, including, the second sending module, the second receiving module, the second feedback module, the second timing unit and second judgment unit,
In,
Second timing unit for carrying out timing to the time for not receiving first kind compressed package, and judges whether to reach
The second threshold time；
The second judgment unit reaches the second threshold time for judging the time for receiving first kind compressed package
When, select end mode conversion process, or construction first kind compressed package to be sent to decompression machine.
8. the optimization system in the conversion of the robustness header compression mode according to any one of claim 6-7, feature exist
In,
If mode is converted to the conversion of R mode to O mode, the first kind compressed package is for IR, IR-DYN or with O mode
The compressed package of UOR-2 type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546694.2A CN109219083A (en) | 2017-07-06 | 2017-07-06 | Optimization method and system in a kind of conversion of robustness header compression mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546694.2A CN109219083A (en) | 2017-07-06 | 2017-07-06 | Optimization method and system in a kind of conversion of robustness header compression mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109219083A true CN109219083A (en) | 2019-01-15 |
Family
ID=64993177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710546694.2A Pending CN109219083A (en) | 2017-07-06 | 2017-07-06 | Optimization method and system in a kind of conversion of robustness header compression mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109219083A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092853A (en) * | 2019-10-22 | 2020-05-01 | 翱捷智能科技(上海)有限公司 | ROHC compressor and compression state adjusting method thereof |
| CN111181936A (en) * | 2019-12-20 | 2020-05-19 | 翱捷科技(上海)有限公司 | ROHC system and implementation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835196A (en) * | 2010-05-14 | 2010-09-15 | 中兴通讯股份有限公司 | Method and device for mode conversion in robust header compression |
| CN101984621A (en) * | 2010-10-25 | 2011-03-09 | 中兴通讯股份有限公司 | Method and device for improving list compression efficiency in robustness header compression |
| CN102215236A (en) * | 2011-06-13 | 2011-10-12 | 中兴通讯股份有限公司 | Working mode switching method and device of robust header compression protocol (ROHC) layer |
| CN102291774A (en) * | 2011-07-27 | 2011-12-21 | 中兴通讯股份有限公司 | Robust header compression method, compressor and system |
| US20130083702A1 (en) * | 2011-10-03 | 2013-04-04 | Qualcomm Incorporated | Activating and deactivating semi-persistent scheduling for an lte voip radio bearer |
| CN104639523A (en) * | 2013-11-12 | 2015-05-20 | 中兴通讯股份有限公司 | State transition method and device based on robust header compression |
| WO2016190592A1 (en) * | 2015-05-22 | 2016-12-01 | Lg Electronics Inc. | Method for performing an ack/nack indication based on the uplink grants over multiple subframes in a wireless communication system and a device therefor |
| CN106464944A (en) * | 2015-01-02 | 2017-02-22 | Lg 电子株式会社 | Broadcast signal transmission apparatus, broadcast signal reception apparatus, broadcast signal transmission method, and broadcast signal reception method |
| WO2017034232A1 (en) * | 2015-08-21 | 2017-03-02 | Lg Electronics Inc. | Method for triggering a bsr for sidelink data in a d2d communication system and device therefor |
| CN106688222A (en) * | 2014-09-24 | 2017-05-17 | 三星电子株式会社 | Call processing method and apparatus for use in LTE system |
-
2017
- 2017-07-06 CN CN201710546694.2A patent/CN109219083A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835196A (en) * | 2010-05-14 | 2010-09-15 | 中兴通讯股份有限公司 | Method and device for mode conversion in robust header compression |
| CN101984621A (en) * | 2010-10-25 | 2011-03-09 | 中兴通讯股份有限公司 | Method and device for improving list compression efficiency in robustness header compression |
| CN102215236A (en) * | 2011-06-13 | 2011-10-12 | 中兴通讯股份有限公司 | Working mode switching method and device of robust header compression protocol (ROHC) layer |
| CN102291774A (en) * | 2011-07-27 | 2011-12-21 | 中兴通讯股份有限公司 | Robust header compression method, compressor and system |
| US20130083702A1 (en) * | 2011-10-03 | 2013-04-04 | Qualcomm Incorporated | Activating and deactivating semi-persistent scheduling for an lte voip radio bearer |
| CN104639523A (en) * | 2013-11-12 | 2015-05-20 | 中兴通讯股份有限公司 | State transition method and device based on robust header compression |
| CN106688222A (en) * | 2014-09-24 | 2017-05-17 | 三星电子株式会社 | Call processing method and apparatus for use in LTE system |
| CN106464944A (en) * | 2015-01-02 | 2017-02-22 | Lg 电子株式会社 | Broadcast signal transmission apparatus, broadcast signal reception apparatus, broadcast signal transmission method, and broadcast signal reception method |
| WO2016190592A1 (en) * | 2015-05-22 | 2016-12-01 | Lg Electronics Inc. | Method for performing an ack/nack indication based on the uplink grants over multiple subframes in a wireless communication system and a device therefor |
| WO2017034232A1 (en) * | 2015-08-21 | 2017-03-02 | Lg Electronics Inc. | Method for triggering a bsr for sidelink data in a d2d communication system and device therefor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092853A (en) * | 2019-10-22 | 2020-05-01 | 翱捷智能科技(上海)有限公司 | ROHC compressor and compression state adjusting method thereof |
| CN111092853B (en) * | 2019-10-22 | 2020-10-27 | 翱捷智能科技(上海)有限公司 | ROHC compressor and compression state adjusting method thereof |
| CN111181936A (en) * | 2019-12-20 | 2020-05-19 | 翱捷科技(上海)有限公司 | ROHC system and implementation method thereof |
| CN111181936B (en) * | 2019-12-20 | 2020-11-03 | 翱捷科技股份有限公司 | ROHC system and implementation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8260287B2 (en) | Mobile communication method and system | |
| CN101568144B (en) | Header compression method applicable to wireless ad hoc network | |
| EP1421765B1 (en) | Extension header compression | |
| CN108632229B (en) | Header compression method, header decompression method and device in multi-connection | |
| EP1808992A1 (en) | Method for the exchange of data packets in a network of distributed stations, device for compression of data packets and device for decompression of data packets | |
| CN101998438B (en) | Method and equipment for improving performance of PDCP (Packet Data Convergence Protocol) ROHC (Robust Header Compression) algorithm | |
| CN101835196B (en) | Method and device for mode conversion in robust header compression | |
| EP2122988A1 (en) | Method and apparatus for relocating a header compression context in a wireless communication system | |
| CN1187996C (en) | Method for controlling data-flow in communication system | |
| CN102469511A (en) | Packet data convergence protocol layer handling data method and system | |
| CN101848491A (en) | Mode converting method and device in robust header compression | |
| CN103152359A (en) | Method for improving end-to-end wireless transmission control protocol (TCP) linear network coding | |
| CN108631921B (en) | Method and device for processing SN length | |
| CN1780296B (en) | Method for restoring compressed and decompressed context rapidly | |
| CN104836642A (en) | LTP (Licklider Transmission Protocol) optimized design method based on erase code | |
| KR102002939B1 (en) | On-demand file recovery methods and systems | |
| CN109219083A (en) | Optimization method and system in a kind of conversion of robustness header compression mode | |
| US9350592B2 (en) | Decompressing method and apparatus | |
| CN114020304A (en) | LoRaWan-based OTA implementation method, terminal device and computer storage medium | |
| WO2000079764A1 (en) | Robust delta encoding with history information | |
| Minaburo et al. | Configuration and analysis of robust header compression in UMTS | |
| CN107801212A (en) | A kind of communication means and device | |
| CN109005200B (en) | Hidden file transmission method under WiFi physical isolation environment | |
| CN105591711B (en) | The method and compressor that robustness header compression state is moved back | |
| CN102761393A (en) | Method and device for processing data message |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190115 |