CN102202347A - Method and device for processing robust header compression (ROHC) service flow - Google Patents
Method and device for processing robust header compression (ROHC) service flow Download PDFInfo
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Abstract
The invention discloses a method and a device for processing robust header compression (ROHC) service flow. The method comprises the following steps that: a network element for realizing an ROHC function determines feedback service flow of ROHC service flow; and the network element for realizing the ROHC function sets the determined feedback service flow as the feedback service flow of the ROHC service flow. By the method, the problems of waste space bandwidth or poor and unreliable compression efficiency are solved during process of unsuccessfully building the feedback service flow of the ROHC service flow so as to further realize high compression efficiency, high reliability and space bandwidth saving.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of robust header compression (RobustHeader Compression abbreviates ROHC as) processing method for service stream and device.
Background technology
ROHC is that definition Internet protocol (Internet Protocol abbreviates IP as) layer reaches the efficient compression algorithm with the head on upper strata, and this method has been carried out specific definition in the documents such as RFC3095, RFC3759 that IETF issues; ROHC channel one end is a compressor reducer, the other end is a decompression machine, and compressor reducer compresses the back to the header of the datagram of input and arrives decompression machine by the ROHC Channel Transmission, and decompression machine recovers the head of compression out, wherein, the function of compressor reducer and decompression machine all belongs to the ROHC function.
The ROHC parameter of each ROHC channel of definition comprises an optional parameters in the RFC document in these parameters, i.e. ROHC feedback channel sign.If comprise ROHC feedback channel sign in the ROHC parameter of ROHC channel, then the decompressor of this ROHC channel one end can be transferred to the compressor reducer of the ROHC channel other end to the feedback information that produces in the decompression process by the ROHC feedback channel, thereby improves the accuracy and the compression efficiency of compression.Simultaneously, only under the situation that has the ROHC feedback channel, the compact model of ROHC just can be from unidirectional mode (Unidirectional Mode, abbreviate U-Mode as) transfer bidirectional optimistic mode (Bidirectional Optimistic mode to, abbreviate O-Mode as) or bidirectional reliable mode (Bidirectional Reliable Mode abbreviates R-Mode as).U-Mode does not have the ROHC feedback channel, but O-Mode and R-Mode need the ROHC feedback channel.
At micro-wave access to global intercommunication (Worldwide Interoperability for MicrowaveAccess, abbreviate WiMAX as) in the system, for improving access service network bandwidth usage efficient, air interface radio resource efficiency particularly, need to support the ROHC feature, business support is even more important the ROHC business to VoIP, to the speech business of IPv6, the IP head is 60 bytes, can byte of boil down to by ROHC.
Support that at WiMAX ROHC channel or ROHC feedback channel are corresponding one by one with Business Stream under the ROHC situation, i.e. ROHC channel correspondence ROHC Business Stream, the feedback Business Stream of ROHC feedback channel correspondence ROHC Business Stream.If certain ROHC channel needs the ROHC feedback channel, then need to set up simultaneously the feedback Business Stream of ROHC Business Stream and ROHC Business Stream.And in actual mechanical process, ROHC feedback Business Stream may be set up failure, therefore need feed back Business Stream foundation failure to ROHC and handle, and can normally move with the assurance system.
Set up the processing procedure of failure at ROHC feedback Business Stream in the WiMAX system in the correlation technique at present, following method is provided: method one changes to the ROHC Business Stream Business Stream with ROHC characteristic; Method two changes to the ROHC Business Stream and does not have the ROHC Business Stream that feeds back Business Stream.
In above-mentioned two kinds of processing methods, method one changes to the Business Stream with ROHC characteristic with the ROHC Business Stream, then can not use the ROHC characteristic to bring benefit, promptly saves the purpose of air bandwidth.Method two with the ROHC Business Stream change to do not have the feedback Business Stream the ROHC Business Stream, cause ROHC can only be operated in unidirectional U pattern, compression efficiency is not high and unreliable.
Summary of the invention
Set up in the processing procedure of failure at ROHC feedback Business Stream, the not high and insecure problem of wasting space bandwidth or compression efficiency and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of ROHC processing method for service stream and device, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of ROHC processing method for service stream.
ROHC processing method for service stream according to the present invention comprises: the network element of realization ROHC function is determined the feedback Business Stream of ROHC Business Stream; The feedback Business Stream that the network element of realization ROHC function is determined is set to the feedback Business Stream of ROHC Business Stream.
Preferably, the network element of realization ROHC function determines that the feedback Business Stream of ROHC Business Stream comprises: when the ROHC Business Stream is set up successfully, and when the feedback Business Stream of ROHC Business Stream correspondence is set up failure, realize that the network element of ROHC function is selected the feedback Business Stream of a Business Stream as the ROHC Business Stream from the Business Stream that the success consistent with feedback Business Stream direction set up.
Preferably, the feedback Business Stream of the Que Dinging feedback Business Stream that is set to the ROHC Business Stream comprises: the network element of realizing the ROHC function will be set up feedback Business Stream information in the ROHC Business Stream from setting up the feedback Business Stream that failure feedback Business Stream changes to selection.
Preferably, realize that the network element of ROHC function determines that the feedback Business Stream of ROHC Business Stream comprises: when beginning to set up a ROHC Business Stream that needs the feedback Business Stream, realize that the network element of ROHC function is selected the feedback Business Stream of a Business Stream as the ROHC Business Stream from the Business Stream that the success consistent with feedback Business Stream direction set up.
Preferably, the feedback Business Stream that the Business Stream of having selected is set to the ROHC Business Stream comprises: the network element of realization ROHC function is provided with selection in setting up ROHC Business Stream process feedback Business Stream is the feedback Business Stream of ROHC Business Stream.
Preferably, the network element of realizing the ROHC function comprise following one of at least: terminal, access service network gateway.
To achieve these goals, according to an aspect of the present invention, also provide a kind of ROHC processing method for service stream.
ROHC processing method for service stream according to the present invention comprises: the network element foundation that realizes the ROHC function does not have the ROHC Business Stream that feeds back Business Stream; The network element of realization ROHC function is determined the feedback Business Stream of ROHC Business Stream; The network element of realizing the ROHC function is provided with the feedback Business Stream that definite feedback Business Stream is the ROHC Business Stream.
Preferably, the network element of realizing the ROHC function determines that the feedback Business Stream of ROHC Business Stream comprises: the feedback Business Stream of successfully setting up for the ROHC Business Stream.
Preferably, the network element of realizing the ROHC function determines that the feedback Business Stream of ROHC Business Stream comprises: be the successful Business Stream of setting up of the required feedback Business Stream of ROHC Business Stream direction unanimity.
Preferably, the feedback Business Stream is set is that the feedback Business Stream of ROHC Business Stream comprises to the network element of realizing the ROHC function: the network element of realizing the ROHC function will not have the ROHC Business Stream that feeds back Business Stream and change to and have the ROHC Business Stream that feeds back Business Stream.
Preferably, the network element of realizing the ROHC function comprise following one of at least: terminal, access service network gateway.
To achieve these goals, according to another aspect of the present invention, provide a kind of ROHC Business Stream processing unit.
ROHC Business Stream processing unit according to the present invention comprises: determination module is used for determining the feedback Business Stream of ROHC Business Stream; Module is set, and the feedback Business Stream that is used for determining is set to the feedback Business Stream of ROHC Business Stream.
To achieve these goals, according to another aspect of the present invention, also provide a kind of ROHC Business Stream processing unit.
ROHC Business Stream processing unit according to the present invention comprises: set up module, be used to set up and do not have a ROHC Business Stream that feeds back Business Stream; Determination module is used for determining the feedback Business Stream of ROHC Business Stream; Module is set, is used to be provided with the feedback Business Stream that the ROHC Business Stream is the ROHC Business Stream.
The present invention also provides a kind of ROHC Business Stream to set up successfully, and the processing method of the feedback Business Stream of described ROHC Business Stream correspondence when setting up failure, comprising:
The network element of realizing the ROHC function discharges the ROHC Business Stream that success is set up;
The network element of realization ROHC function is set up new Business Stream; Described realization ROHC
The network element of function is set up new Business Stream, comprise following one of at least;
The network element of realizing the ROHC function rebulids the ROHC Business Stream; Or
The network element of realizing the ROHC function rebulids general service stream;
Described its ROHC parameter of ROHC Business Stream that rebulids, comprise following one of at least:
Use the identical ROHC parameter of ROHC Business Stream of setting up failure with described feedback Business Stream; Or
Use the different ROHC parameter of ROHC Business Stream of setting up failure with described feedback Business Stream.
The described use ROHC parameter different with the ROHC Business Stream of described feedback Business Stream foundation failure comprises:
The network element of described realization ROHC function is selected the feedback Business Stream of a Business Stream as described ROHC Business Stream from the Business Stream that the success consistent with described feedback Business Stream direction set up;
The network element of described realization ROHC function is provided with described selection in setting up described ROHC Business Stream process feedback Business Stream is the feedback Business Stream of described ROHC Business Stream.
The described general service stream that rebulids is meant:
The Business Stream that does not have ROHC characteristic or ROHC compression property.
The network element of described realization ROHC function comprise following one of at least:
Terminal, access service network gateway.
By the present invention, set up successfully and after its corresponding ROHC feedback Business Stream sets up failure at the ROHC Business Stream, determine the feedback Business Stream of ROHC Business Stream by the network element of realizing the ROHC function, and determine that the Business Stream that feeds back is set to the feedback Business Stream of ROHC Business Stream; Perhaps set up earlier and do not have the ROHC Business Stream that feeds back Business Stream, after the ROHC Business Stream is set up successfully, utilize the network element of realizing the ROHC function to determine the feedback Business Stream, and the feedback Business Stream that definite feedback Business Stream is the ROHC Business Stream is set, or discharge successfully set up the ROHC Business Stream, set up new Business Stream.Foregoing invention has solved the feedback Business Stream of ROHC Business Stream and has set up in the processing procedure of failure, the not high and insecure problem of wasting space bandwidth or compression efficiency, and then realized compression efficiency height, reliability height and saved air bandwidth.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the ROHC processing method for service stream of the embodiment of the invention;
Fig. 2 is the interaction diagrams of the example one according to the present invention;
Fig. 3 is the interaction diagrams of the example two according to the present invention;
Fig. 4 is the interaction diagrams of the example three according to the present invention;
Fig. 5 is the interaction diagrams of the example four according to the present invention;
Fig. 6 is the interaction diagrams of the example five according to the present invention;
Fig. 7 is the structured flowchart one according to the ROHC Business Stream processing unit of the embodiment of the invention;
Fig. 8 is the preferred structure block diagram one according to the ROHC Business Stream processing unit of the embodiment of the invention;
Fig. 9 is the structured flowchart two according to the ROHC Business Stream processing unit of the embodiment of the invention.
Figure 10 is the schematic diagram of the example six according to the present invention;
Figure 11 is the schematic diagram of the example seven according to the present invention;
Embodiment
Functional overview
Consider that ROHC Business Stream in the correlation technique is set up successfully and its corresponding ROHC feedback Business Stream is set up in the processing procedure of failure, the not high and insecure problem of wasting space bandwidth or compression efficiency, the embodiment of the invention provides ROHC Business Stream processing scheme, by discharging the ROHC Business Stream of successfully setting up, rebulid ROHC Business Stream or general service stream; Perhaps from the Business Stream that the success consistent with feedback Business Stream direction set up, select the feedback Business Stream of a Business Stream, and the Business Stream that setting has been selected is the feedback Business Stream of ROHC Business Stream as the ROHC Business Stream by the network element (terminal and Access Network gateway realization ROHC function) of realizing the ROHC function.If professional the foundation successfully of ROHC and its feedback Business Stream is set up failure, then need the feedback Business Stream of ROHC Business Stream is changed to the described feedback Business Stream of selection from setting up the feedback Business Stream of failing; If selected in advance described feedback Business Stream then directly selects described feedback Business Stream to be set to the feedback Business Stream of this ROHC Business Stream in setting up ROHC Business Stream process before setting up the ROHC Business Stream.Perhaps set up earlier and do not have the ROHC Business Stream that feeds back Business Stream, after the ROHC Business Stream is set up successfully, utilize the network element of realizing the ROHC function to determine the feedback Business Stream, and described ROHC Business Stream changed to the ROHC Business Stream that has definite feedback Business Stream, wherein said feedback Business Stream can be to give feedback Business Stream that this ROHC Business Stream sets up or other specially and feed back the consistent Business Stream of Business Stream direction.To realize compression efficiency height, reliability height and to save air bandwidth.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
Embodiment one
According to embodiments of the invention, a kind of ROHC processing method for service stream is provided, this method comprises: for the ROHC Business Stream of needs feedback Business Stream, the network element of realization ROHC function is determined the feedback Business Stream of ROHC Business Stream, for example, from the Business Stream that the success consistent with feedback Business Stream direction set up, select the feedback Business Stream of a Business Stream as the ROHC Business Stream, the Business Stream of having selected (that is the feedback Business Stream of ROHC Business Stream) is set to the feedback Business Stream of ROHC Business Stream.
Wherein, this method comprises following two kinds of situations:
Situation one: terminal is in state of activation, and may there be the Business Stream of a plurality of success foundation simultaneously in up-downgoing.After the ROHC Business Stream is set up successfully, if the feedback Business Stream of its correspondence is set up failure subsequently, the network element (terminal or access service network gateway) of realization ROHC function can be selected the feedback Business Stream of a Business Stream as the ROHC Business Stream from the Business Stream that the success consistent with feedback Business Stream direction set up, and the traffic stream identifier that the feedback traffic stream identifier of ROHC Business Stream is failed from former foundation changes to selected traffic stream identifier.
Situation two: when beginning to set up a ROHC Business Stream that needs the feedback Business Stream, the network element of realization ROHC function is directly selected the feedback Business Stream of a Business Stream as the ROHC Business Stream from the Business Stream that the success consistent with feedback Business Stream direction set up, and then set up and to have the ROHC Business Stream that feeds back Business Stream, should feed back the feedback Business Stream that Business Stream is set to this ROHC Business Stream in the process setting up of this ROHC Business Stream.So just avoid follow-up ROHC feedback Business Stream to set up fully, also just do not exist the subsequent feedback Business Stream to set up the problem of failure.
Embodiment two
According to embodiments of the invention, a kind of ROHC processing method for service stream also is provided, ROHC Business Stream for needs feedback Business Stream, when beginning to set up, the ROHC Business Stream do not carry feedback Business Stream information without exception, Fig. 1 is the flow chart according to the ROHC processing method for service stream of the embodiment of the invention, as shown in Figure 1, comprise that following step S102 is to step S104:
Step S102: the network element foundation that realizes the ROHC function does not have the ROHC Business Stream that feeds back Business Stream.
Step S104: the network element of realizing the ROHC function is determined the feedback Business Stream of ROHC Business Stream, and the feedback Business Stream that definite feedback Business Stream is the ROHC Business Stream is set.
Wherein, can comprise following situation for the operation of determining the feedback Business Stream among the step S104:
Situation one: set up the feedback Business Stream,, determine that then this feedback Business Stream of setting up is the feedback Business Stream if set up successfully.
Situation two: set up the feedback Business Stream, if set up failure, then search other Business Stream of successfully setting up consistent with feeding back the Business Stream direction, if can find other Business Stream of successfully setting up, determine that then other Business Stream successfully set up that finds is the feedback Business Stream as the feedback Business Stream.
Situation three: search the Business Stream that the success consistent with feeding back the Business Stream direction set up, if can find (promptly, can find can be as the Business Stream of the feedback Business Stream of ROHC Business Stream), determine that then this Business Stream that finds is described feedback Business Stream, change ROHC Business Stream is to have the ROHC Business Stream that feeds back Business Stream.
Situation four: search the Business Stream that the success consistent with feeding back the Business Stream direction set up, if do not find (that is, can not find can as the Business Stream of the feedback Business Stream of ROHC Business Stream), then set up the feedback Business Stream, subsequent treatment is identical with situation one, does not repeat them here.
In addition, if can not find the Business Stream can be as the Business Stream of feedback Business Stream from setting up, and the feedback Business Stream is also successfully set up.Then do not do other and handle, then the ROHC Business Stream still remains and does not have the ROHC Business Stream that feeds back Business Stream.
Embodiment three
According to embodiments of the invention, a kind of ROHC processing method for service stream also is provided, has set up successfully, and the feedback Business Stream of its correspondence is set up when failing for the ROHC Business Stream, adopt following method: discharge the ROHC Business Stream that success is set up, set up new Business Stream then.The new Business Stream of described foundation is divided into two kinds of situations:
Situation one: set up the general service stream that does not have ROHC characteristic (promptly not having the ROHC compression property).
Situation two: continue to set up the ROHC Business Stream; The ROHC Business Stream that continues to set up can adopt and the original same or different ROHC parameter of ROHC Business Stream.
Wherein, the network element of realizing the ROHC function comprise following one of at least: terminal, access service network gateway.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
In such scheme, no matter be to select the feedback Business Stream of a successful service stream in advance as the ROHC Business Stream, still after the feedback Business Stream of ROHC Business Stream is set up failure, the feedback Business Stream of the failure of ROHC Business Stream is changed to the Business Stream that other is successfully set up, still the ROHC Business Stream of selecting will not have behind the feedback Business Stream of a success feedback Business Stream information changes to and has the ROHC Business Stream that feeds back Business Stream, still rebulid Business Stream, in the specific implementation process, all have access business network gateway (Access Service Network GateWay abbreviates ASN-GW as) or terminal and trigger this change process.
Example one
This example is the specific implementation process of situation one among the embodiment one.Fig. 2 is the interaction diagrams of the example one according to the present invention, as shown in Figure 2, described between access service network gateway and the terminal, need set up one and have the ROHC Business Stream that feeds back Business Stream, set up successfully when ROHC is professional, and after the feedback Business Stream foundation failure, the Business Stream of selecting a success to set up by ASN-GW is the feedback Business Stream process of ROHC Business Stream.This example comprises that following step S202 is to step S212:
Step S202, ANS-GW and management system (Management System abbreviates MS as) are mutual by base station (Base Station abbreviates BS as), set up the ROHC Business Stream.
Step S204, ANS-GW and MS are mutual by BS, set up the feedback Business Stream of ROHC Business Stream.In this example, this feedback Business Stream is set up failure.
Below be to set up from success, and select a process in the Business Stream consistent as the feedback Business Stream of ROHC Business Stream with the feedback Business Stream direction of ROHC Business Stream by ANS-GW.
Step S206, ASN-GW sends the data channel modify request messages to the base station, has the information (can be that new feedback traffic stream identifier is realized by the value that the ROHC_FEEDBACK_FOR field in the ROHC parameter is set) of the new feedback Business Stream of ROHC Business Stream in the message.
Step S208, BS sends the dynamic service flow modify request messages to terminal, has the information (can be that new feedback traffic stream identifier is realized by the value that the ROHC_FEEDBACK_FOR field in the ROHC parameter is set) of the new feedback Business Stream of ROHC Business Stream in the message.
Step S210, terminal sends dynamic service flow and revises response message to the base station.
Step S212, the base station sends data channel and revises response message to ASN-GW.
Described step S206 to step S210 also be applicable to when one do not have the ROHC Business Stream that feed back Business Stream change to one have feed back Business Stream ROHC Business Stream process.
Example two
This example is the specific implementation process of situation one among the embodiment one.Fig. 3 is the interaction diagrams of the example two according to the present invention, as shown in Figure 3, described between access service network gateway and the terminal, need set up one and have the ROHC Business Stream that feeds back Business Stream, set up successfully when ROHC is professional, and after the feedback Business Stream foundation failure, the Business Stream of selecting a success to set up by terminal is the feedback Business Stream process of ROHC Business Stream.Comprise that following step S302 is to step S312:
Step S302, ANS-GW and MS are mutual by BS, set up the ROHC Business Stream.
Step S304, ANS-GW and MS are mutual by BS, set up the feedback Business Stream of ROHC Business Stream.In this example, this feedback Business Stream is set up failure.
Below be to set up from success, and select a process in the Business Stream consistent as the feedback Business Stream of ROHC Business Stream with the feedback Business Stream direction of ROHC Business Stream by terminal.
Step S306, terminal sends the dynamic service flow modify request messages to the base station, has the information (can be that new feedback traffic stream identifier is realized by the value that the ROHC_FEEDBACK_FOR field in the ROHC parameter is set) of the new feedback Business Stream of ROHC Business Stream in the message.
Step S308, BS sends the data channel modify request messages to ASN-GW, has the information (can be that new feedback traffic stream identifier is realized by the value that the ROHC_FEEDBACK_FOR field in the ROHC parameter is set) of the new feedback Business Stream of ROHC Business Stream in the message.
Step S310, ASN-GW send data channel and revise response message to the base station.
Step S312, the base station sends dynamic service flow and revises response message to terminal.
Described step S306 to S310 also be applicable to when one do not have the ROHC Business Stream that feed back Business Stream change to one have feed back Business Stream ROHC Business Stream process.
Example three
This example is the specific implementation process of the situation two among situation two and the embodiment three among the embodiment one.Fig. 4 is the interaction diagrams of the example three according to the present invention, as shown in Figure 4, described between access service network gateway and the terminal, need set up one and have the ROHC Business Stream that feeds back Business Stream: at first the Business Stream of selecting a success to set up by ASN-GW is the feedback Business Stream of ROHC Business Stream, and then sets up the ROHC Business Stream.Comprise that following step S402 is to step S404:
Step S402, ANS-GW sets up from success, and selects the feedback Business Stream as the ROHC Business Stream in the Business Stream consistent with the feedback Business Stream direction of ROHC Business Stream.
Step S404, ANS-GW and MS are mutual by BS, set up the ROHC Business Stream.Carry the Business Stream selected among the step S402 information (value that the ROHC_FEEDBACK_FOR field in the ROHC parameter is set realizes for the traffic stream identifier of selecting) in the message of reciprocal process as the feedback Business Stream of this ROHC Business Stream.
Example four
This example is the specific implementation process of embodiment two.Fig. 5 is the interaction diagrams of the example four according to the present invention, as shown in Figure 5, described between access service network gateway and the terminal, need set up one and have the ROHC Business Stream that feeds back Business Stream: at first set up one do not have feed back Business Stream the ROHC Business Stream (promptly, above-mentioned steps S102), if the follow-up suitable Business Stream (this Business Stream can be that the feedback Business Stream set up for the follow-up success of this ROHC Business Stream or other can be used as the Business Stream of this ROHC Business Stream feedback Business Stream) that exists is as the feedback Business Stream, then the ROHC Business Stream of success foundation changes to and has the ROHC Business Stream (that is above-mentioned steps S104) that feeds back Business Stream.Comprise that following step S502 is to step S508:
Step S502, ANS-GW and MS are mutual by BS, set up the ROHC Business Stream do not have feedback Business Stream information (can be set to an invalid value by the value of the ROHC_FEEDBACK_FOR field of not carrying in the ROHC parameter or this field realizes).
Step S504, ANS-GW and MS are mutual by BS, for the ROHC Business Stream is set up its required feedback Business Stream.
Step S506, if the feedback Business Stream is set up successfully in the step 504, ANS-GW (or terminal) is with the feedback Business Stream of this Business Stream as the ROHC Business Stream; If the feedback Business Stream in the step 504 is set up failure, ANS-GW (or terminal) sets up from success, and selects the feedback Business Stream as the ROHC Business Stream in the Business Stream consistent with the feedback Business Stream direction of ROHC Business Stream.
Step S508, ANS-GW and MS are mutual by BS, set up ROHC Business Stream described in the step S502 is changed to the ROHC Business Stream that has feedback Business Stream information.Carry the Business Stream selected among the step S506 information (can realize for the feedback traffic stream identifier of selecting) in the message of reciprocal process by the value that the ROHC_FEEDBACK_FOR field in the ROHC parameter is set as the feedback Business Stream of this ROHC Business Stream.
Example five
This example is the specific implementation process of embodiment two.Fig. 6 is the interaction diagrams of the example five according to the present invention, as shown in Figure 6, described between access service network gateway and the terminal, need set up one and have the ROHC Business Stream that feeds back Business Stream: at first set up one do not have feed back Business Stream the ROHC Business Stream (promptly, above-mentioned steps S102), if the follow-up suitable Business Stream (this Business Stream can be that the feedback Business Stream set up for the follow-up success of this ROHC Business Stream or other can be used as the Business Stream of this ROHC Business Stream feedback Business Stream) that exists is as the feedback Business Stream, then the ROHC Business Stream of success foundation changes to and has the ROHC Business Stream (that is above-mentioned steps S104) that feeds back Business Stream.Comprise that following step S602 is to step S606:
Step S602, ANS-GW and MS are mutual by BS, set up the ROHC Business Stream do not have feedback Business Stream information (can be set to an invalid value by the value of the ROHC_FEEDBACK_FOR field of not carrying in the ROHC parameter or this field realizes).
Step S604 selects the feedback Business Stream as the ROHC Business Stream in the consistent Business Stream of the feedback Business Stream direction of ANS-GW (or terminal) and ROHC Business Stream.
Step S606, ANS-GW and MS are mutual by BS, set up ROHC Business Stream described in the step S602 is changed to the ROHC Business Stream that has feedback Business Stream information.Carry the Business Stream selected among the step S604 in the message of reciprocal process as the information of the feedback Business Stream of this ROHC Business Stream (value that can be by the ROHC_FEEDBACK_FOR field in the ROHC parameter is set realizes for the sign of the feedback Business Stream selected).
Example six
This example is the specific implementation process of situation one among the embodiment three.Figure 10 is the schematic diagram of the example six according to the present invention, described between access service network gateway and the terminal, need set up one and have the ROHC Business Stream that feeds back Business Stream, set up successfully when ROHC is professional, and after the feedback Business Stream foundation failure, discharge the ROHC Business Stream of successfully setting up by the network element (ASN-GW or MS) of realizing the ROHC function, and then set up the schematic diagram of a general service stream.
Step S1002, ANS-GW and MS are mutual by BS, discharge the ROHC Business Stream that success is set up;
Step S1004, ANS-GW and MS are mutual by BS, set up a general service stream.
Example seven
This example is the specific implementation process of situation two among the embodiment three.Figure 11 is the schematic diagram of the example seven according to the present invention, described between access service network gateway and the terminal, need set up one and have the ROHC Business Stream that feeds back Business Stream, set up successfully when ROHC is professional, and after the feedback Business Stream foundation failure, discharge the ROHC Business Stream of successfully setting up by the network element (ASN-GW or MS) of realizing the ROHC function, and then set up the schematic diagram of a ROHC Business Stream (adopting identical or different ROHC parameters) with aforementioned ROHC Business Stream.
Step S1102, ANS-GW and MS are mutual by BS, discharge the ROHC Business Stream that success is set up;
Step S1104, ANS-GW and MS are mutual by BS, set up a new ROHC Business Stream.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Device embodiment
Embodiment one
According to embodiments of the invention one, a kind of ROHC Business Stream processing unit is provided, this device can be used for realizing the ROHC processing method for service stream of said method embodiment one.Fig. 7 is that as shown in Figure 7, this device comprises according to the structured flowchart one of the ROHC Business Stream processing unit of the embodiment of the invention: determination module 71, module 72 is set, below said structure is described in detail.
Fig. 8 is that as shown in Figure 8, determination module 71 comprises according to the preferred structure block diagram one of the ROHC Business Stream processing unit of the embodiment of the invention: first determines submodule 81, second definite submodule 82.Below said structure is described in detail.
First determines submodule 81, be used for setting up successfully when the ROHC Business Stream, and when the feedback Business Stream of ROHC Business Stream correspondence is set up failure, from the Business Stream that the success consistent with feedback Business Stream direction set up, select the feedback Business Stream of a Business Stream as the ROHC Business Stream; Second determines submodule 82, is used for when beginning to set up a ROHC Business Stream that needs the feedback Business Stream, and Business Stream of selection is as the feedback Business Stream of ROHC Business Stream from the Business Stream that the success consistent with feedback Business Stream direction set up; After second determined that submodule 82 is selected the feedback Business Stream, the feedback Business Stream that selection is set in setting up ROHC Business Stream process was the feedback Business Stream of ROHC Business Stream.
Embodiment two
According to embodiments of the invention two, a kind of ROHC Business Stream processing unit is provided, this device can be used for realizing the ROHC processing method for service stream of said method embodiment two.Fig. 9 is the structured flowchart two according to the ROHC Business Stream processing unit of the embodiment of the invention, and as shown in Figure 9, this device comprises to be set up module 91, determination module 92, module 93 is set.Below said structure is described in detail.
Set up module 91, be used to set up and do not have a ROHC Business Stream that feeds back Business Stream; Determination module 92 is used for determining the feedback Business Stream of ROHC Business Stream; Module 93 is set, be connected to and set up module 91 and determination module 92, be used to be provided with the feedback Business Stream that the ROHC Business Stream is the ROHC Business Stream, that is, being provided with and setting up ROHC Business Stream that module 91 sets up is the ROHC Business Stream that carries the feedback Business Stream that determination module 92 determines.
Wherein, determine that for determination module 92 implementation procedure of feedback Business Stream can comprise following situation:
Situation one: set up the feedback Business Stream, if set up successfully, then determination module 92 determines that this feedback Business Stream of setting up is the feedback Business Stream.
Situation two: set up the feedback Business Stream, if set up failure, then search the Business Stream that other is successfully set up, if can find other Business Stream of successfully setting up as the feedback Business Stream, then determination module 92 determines that other Business Stream successfully set up that finds is the feedback Business Stream.
Situation three: search the Business Stream that success is set up, if can find the Business Stream consistent (promptly with feeding back the Business Stream direction, can find can be as the Business Stream of the feedback Business Stream of ROHC Business Stream), then determination module 92 determines that this Business Stream that finds is described feedback Business Stream, and change ROHC Business Stream is to have the ROHC Business Stream that feeds back Business Stream.
Situation four: search the Business Stream that success is set up, if do not find the Business Stream consistent (promptly with feeding back the Business Stream direction, can not find can be as the Business Stream of the feedback Business Stream of ROHC Business Stream), then set up the feedback Business Stream, subsequent treatment is identical with situation one, does not repeat them here.
In addition, if can not find the Business Stream can be as the Business Stream of feedback Business Stream from setting up, and the feedback Business Stream is also successfully set up.Then do not do other and handle, then the ROHC Business Stream still remains and does not have the ROHC Business Stream that feeds back Business Stream.
Need to prove that the ROHC Business Stream processing unit of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, a kind of ROHC processing method for service stream and device are provided, from the Business Stream that the success consistent with feedback Business Stream direction set up, select the feedback Business Stream of a Business Stream by the network element of realizing the ROHC function, and the Business Stream that change has been selected is the feedback Business Stream of ROHC Business Stream as the ROHC Business Stream; Perhaps by setting up the ROHC Business Stream that does not carry the feedback Business Stream in advance, and utilize the network element of realizing the ROHC function to determine the feedback Business Stream, and change ROHC Business Stream is the ROHC Business Stream that carries definite feedback Business Stream, having solved ROHC feedback Business Stream sets up in the processing procedure of failure, the not high and insecure problem of wasting space bandwidth or compression efficiency, and then realized compression efficiency height, reliability height and saved air bandwidth.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. a robust header compression ROHC processing method for service stream is characterized in that, comprising:
The network element of realization ROHC function is determined the feedback Business Stream of ROHC Business Stream;
The described feedback Business Stream that the network element of described realization ROHC function is determined is set to the feedback Business Stream of described ROHC Business Stream.
2. method according to claim 1 is characterized in that, the network element of described realization ROHC function determines that the feedback Business Stream of ROHC Business Stream comprises:
When described ROHC Business Stream is set up successfully, and when the feedback Business Stream of described ROHC Business Stream correspondence was set up failure, the network element of described realization ROHC function was selected the feedback Business Stream of a Business Stream as described ROHC Business Stream from the Business Stream that the success consistent with described feedback Business Stream direction set up.
3. method according to claim 2 is characterized in that, the feedback Business Stream that the described feedback Business Stream of determining is set to described ROHC Business Stream comprises:
The feedback Business Stream information that the network element of described realization ROHC function will be set up in the described ROHC Business Stream is fed back the described feedback Business Stream that Business Stream changes to selection from setting up failure.
4. method according to claim 1 is characterized in that, the network element of described realization ROHC function determines that the feedback Business Stream of ROHC Business Stream comprises:
When beginning to set up a ROHC Business Stream that needs the feedback Business Stream, the network element of described realization ROHC function is selected the feedback Business Stream of a Business Stream as described ROHC Business Stream from the Business Stream that the success consistent with described feedback Business Stream direction set up.
5. method according to claim 4 is characterized in that, the feedback Business Stream that the described Business Stream of having selected is set to described ROHC Business Stream comprises:
The network element of described realization ROHC function is provided with described selection in setting up described ROHC Business Stream process feedback Business Stream is the feedback Business Stream of described ROHC Business Stream.
6. according to each described method in the claim 1 to 5, it is characterized in that, the network element of described realization ROHC function comprise following one of at least:
Terminal, access service network gateway.
7. a robust header compression ROHC processing method for service stream is characterized in that, comprising:
The network element foundation that realizes the ROHC function does not have the ROHC Business Stream that feeds back Business Stream;
The network element of described realization ROHC function is determined the feedback Business Stream of described ROHC Business Stream;
The feedback Business Stream that it is the ROHC Business Stream that the network element of described realization ROHC function is provided with definite described feedback Business Stream.
8. method according to claim 7 is characterized in that, the network element of described realization ROHC function determines that the feedback Business Stream of described ROHC Business Stream comprises:
The feedback Business Stream of successfully setting up for described ROHC Business Stream.
9. method according to claim 8 is characterized in that, the network element of described realization ROHC function determines that the feedback Business Stream of described ROHC Business Stream comprises:
The successful Business Stream of setting up for the required feedback Business Stream of described ROHC Business Stream direction unanimity.
10. method according to claim 7 is characterized in that, the feedback Business Stream that it is the ROHC Business Stream that the network element of described realization ROHC function is provided with described feedback Business Stream comprises:
The network element of described realization ROHC function will not have the ROHC Business Stream that feeds back Business Stream and change to the ROHC Business Stream that has described feedback Business Stream.
11. according to each described method in the claim 7 to 10, it is characterized in that, the network element of described realization ROHC function comprise following one of at least:
Terminal, access service network gateway.
12. a ROHC Business Stream is set up successfully and the processing method of the feedback Business Stream of described ROHC Business Stream correspondence when setting up failure, it is characterized in that, comprising:
The network element of realizing the ROHC function discharges the ROHC Business Stream that success is set up;
The network element of realization ROHC function is set up new Business Stream;
13. method according to claim 12, the network element of described realization ROHC function is set up new Business Stream, comprise following one of at least;
The network element of realizing the ROHC function rebulids the ROHC Business Stream; Or
The network element of realizing the ROHC function rebulids general service stream;
14. method according to claim 13, described its ROHC parameter of ROHC Business Stream that rebulids, comprise following one of at least:
Use the identical ROHC parameter of ROHC Business Stream of setting up failure with described feedback Business Stream; Or
Use the different ROHC parameter of ROHC Business Stream of setting up failure with described feedback Business Stream.
15. method according to claim 14 is characterized in that, the described use ROHC parameter different with the ROHC Business Stream of described feedback Business Stream foundation failure comprises:
The network element of described realization ROHC function is selected the feedback Business Stream of a Business Stream as described ROHC Business Stream from the Business Stream that the success consistent with described feedback Business Stream direction set up;
The network element of described realization ROHC function is provided with described selection in setting up described ROHC Business Stream process feedback Business Stream is the feedback Business Stream of described ROHC Business Stream.
16. method according to claim 13, the described general service stream that rebulids is meant:
The Business Stream that does not have ROHC characteristic or ROHC compression property.
17. according to each described method in the claim 12 to 16, it is characterized in that, the network element of described realization ROHC function comprise following one of at least:
Terminal, access service network gateway.
18. a robust header compression ROHC Business Stream processing unit is characterized in that, comprising:
Determination module is used for determining the feedback Business Stream of ROHC Business Stream;
Module is set, and the described feedback Business Stream that is used for determining is set to the feedback Business Stream of described ROHC Business Stream.
19. a robust header compression ROHC Business Stream processing unit is characterized in that, comprising:
Set up module, be used to set up and do not have a described ROHC Business Stream that feeds back Business Stream;
Determination module is used for determining the feedback Business Stream of described ROHC Business Stream;
Module is set, is used to described ROHC Business Stream is set the feedback Business Stream that is the ROHC Business Stream.
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