CN102448116A - Method and device for configuring robust header compress channel - Google Patents
Method and device for configuring robust header compress channel Download PDFInfo
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- CN102448116A CN102448116A CN2012100021456A CN201210002145A CN102448116A CN 102448116 A CN102448116 A CN 102448116A CN 2012100021456 A CN2012100021456 A CN 2012100021456A CN 201210002145 A CN201210002145 A CN 201210002145A CN 102448116 A CN102448116 A CN 102448116A
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/18—Management of setup rejection or failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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Abstract
The invention relates to a method and device for configuring a robust header compress channel. The device comprises a configuration request receiving module, a channel judging module and a channel configuring processing module, wherein the configuration request receiving module is used for receiving a robust header compress (ROHC) channel configuration request which carries ROHC channel configuration parameters; the channel judging module is used for judging whether the ROHC channel exists; and the channel configuring processing module is used for reconfiguring the channel and initializing a compress context according to the ROHC channel configuration parameters in the configuration request when the ROHC channel exists, and is used for establishing a new ROHC channel according to the channel configuration parameters when no ROHC channel exists. The method and device provided by the invention are used for solving the problem that user services are delayed during channel configuration.
Description
Technical field
The present invention relates at moving communicating field especially a kind of robustness pressure channel collocation method and device.
Background technology
Because the restriction of physical condition, it is lower that the Radio Link in the GSM and wire link are compared transmission rate, and the error rate is higher.In order effectively to utilize limited wireless channel width resource, introduced robustness head compression technology (RObust Header Compress is hereinafter to be referred as ROHC).The core of ROHC is to utilize the information redundancy between the grouping of Business Stream to come the information in the packets headers between the transparent direct connected node of compression and decompression.The ROHC technology is described by the RFC3095 document of IETF (the Internet engineering duty group); And in February, 2007 IETF (Internet engineering duty group; Internet Engineering Task Force) it is revised, the revision document is RFC4815.
IETF has defined the framework of ROHC in RFC 5795 (having discarded RFC 4995), wherein the ROHC channel parameters is illustrated.
LARGE_CIDS: the Context identifier that the current ROHC passage of this parameter indicating uses is large cid or small is cid, if what use is that the value of large cid then MAX_CID parameter must be greater than 15, otherwise must be smaller or equal to 15.
MAX_CID: the Context identifier of the maximum that this parameter indicating current ROHC passage compressor reducer and decompression machine can use also shows that the compressed and decompressed context that compressor reducer and decompression machine can be supported is respectively MAX_CID+1 simultaneously.The span of MAX_CID is 0-16383 at present.
PROFILES: the set of the compressed and decompressed bag stream type that one group of this ROHC passage can be supported; Independent profile (template) shows the bag stream of certain type protocol that this passage support is compressed and decompressed; Show support ROHCv1 (ROHC version1, RFC 3095) IP/UDP/RTP type data packets stream like 0x0001.Arbitrary element in this parameter is made up of 16bit, and high 8bit representes version (0 expression ROHCv1,1 expression ROHCv2); (1 is the IP/UDP/RTP type to the profile that low 8bit expresses support for, and 2 is the IP/UDP type, and 3 is the IP/ESP type; 4 is the IP type, and 5 are auxiliary IP/UDP/RTP link layer type, and 6 is the IP/TCP type; 7 is the IP/UDP-Lite type, and 8 is the IP/UDP-Lite/RTP type).
MRRU (Maximum Reconstructed Reception Unit; Maximum recomposition unit): with the byte is that unit shows the maximum segment compressed package that current ROHC passage is supported; Because link layer is to the limited length system of data of transmission, so in case the compressed data packets that ROHC generates directly transmit then need dispose this parameter by link layer.If be 0 then show and do not support segmentation that the segmentation compressed package that receive this moment must abandon.
Robustness head compression technology is applicable to wireless network, may reside in wireless terminal, also may reside in wireless network.The difference of wireless communication system and wired communication system is that subscriber equipment moves.Therefore, when setting up wireless communication system, need to consider mobility of user equipment.Wireless communication system can be tackled subscriber equipment is shifted to another regional situation or reply variation from a zone wireless environment.When needs change radio link configuration, be example with TD-SCDMA, RRC (Radio Resource Control, the Radio Resource control) layer or the low layer that are used for managing radio resources control must send the information that is used to dispose new Radio Link to subscriber equipment.So wireless terminal may be by the reprovision Radio Link in wireless environment, the switching like net side apparatus in moving perhaps has better sub-district to cause the terminal to switch in the new sub-district, all can receive network reshuffling the terminal.
The ROHC channel parameters also might be reconfigured in the reprovision Radio Link; But in 3GPP, RFC agreement, do not propose how the ROHC channel parameters is carried out reprovision; So general way is to delete former ROHC passage earlier, sets up the ROHC passage according to new parameter again again.Yet the user can not change or finish the business of current use in whole link reprovision process; Such as the conversation of carrying out VOIP in the whole process always; Obviously not a wise move with rebuliding after the deletion of ROHC passage so; The delay that this can increase conversation, the conversation that influences the user is experienced.Equally, if the user is using PS (Packet Service, Packet data service) business this moment, the cutout of long period may appear in following live shadow.
Can find out from top description; The ROHC passage can be reconfigured; If simple deletion is earlier worked as prepass and set up the delay that the passage of new configuration will inevitably increase the current business that is keeping of user again, even might be interrupted the responsive business of delaying time, have a strong impact on user's experience.
Summary of the invention
The technical problem that the present invention will solve provides the method and apparatus of a kind of robustness pressure channel configuration, the problem that customer service postpones during with the solution channel arrangement.
For solving above technical problem, the invention provides a kind of robustness pressure channel collocation method, this method comprises:
Receive the request of robustness head compression (ROHC) channel arrangement, wherein carry ROHC channel arrangement parameter;
Judge whether the ROHC passage exists;
Judge to reconfigure and the initialization compressed context according to the ROHC channel arrangement parameter in the said configuring request when ROHC passage exists, otherwise according to the newly-built ROHC passage of said ROHC channel arrangement parameter.
Further, said ROHC channel arrangement parameter comprises the parameter (LARGE_CIDS), the parameter (MAX_CID) that is used to show maximum Context identifier that are used to show the Context identifier size, is used to show the parameter (PROFILES) and the maximum recomposition unit (MRRU) of the bag stream type set of support.
Further, judge that this method also comprised when the ROHC passage existed: delete in the former ROHC passage Context identifier greater than compression, the decompression context of the MAX_CID in the said configuring request.
Further, judge that this method also comprised when the ROHC passage existed: delete corresponding compression, the decompression context of template (profile) that belongs to the PROFILES of former ROHC passage but do not belong to the PROFILES in the said configuring request.
Further, judge that this method also comprised: delete feedback data to be sent when the ROHC passage existed.
For solving above technical problem, the present invention also provides a kind of robustness pressure channel inking device, and this device comprises:
The configuring request receiver module is used to receive the request of robustness head compression (ROHC) channel arrangement, wherein carries ROHC channel arrangement parameter;
The passage judge module is used to judge whether the ROHC passage exists;
The channel arrangement processing module is used for when judging that the ROHC passage exists, reconfiguring and the initialization compressed context according to the channel arrangement parameter in the said configuring request, otherwise according to the newly-built ROHC passage of said channel arrangement parameter.
Further, said ROHC channel arrangement parameter comprises the parameter (LARGE_CIDS), the parameter (MAX_CID) that is used to show maximum Context identifier that are used to show the Context identifier size, is used to show the parameter (PROFILES) and the maximum recomposition unit (MRRU) of the bag stream type set of support.
Further, this device comprises that also invalid data removes module, is used for when judging that the ROHC passage exists, and deletes in the former ROHC passage Context identifier greater than compression, the decompression context of the MAX_CID in the said configuring request.
Further; This device also comprises invalid data removing module; Be used for when judging that the ROHC passage exists, delete corresponding compression, the decompression context of template (profile) that belongs to the PROFILES of former ROHC passage but do not belong to the PROFILES in the said configuring request.
Further, this device also comprises invalid data removing module, is used for when judging that the ROHC passage exists, deleting feedback data to be sent.
Compared to prior art; The method and apparatus that ROHC passage of the present invention is reshuffled has reduced when needing releasing memory space and newly-built ROHC passage when original ROHC passage is deleted need apply for the memory headroom process again; Save the time, improved wireless link reconfigured efficient, reduced traffic delay.
Description of drawings
Fig. 1 is the schematic flow sheet of a robustness of the present invention pressure channel collocation method embodiment 1;
Fig. 2 is the contextual schematic flow sheet of the invalid CID of deletion among the robustness of the present invention pressure channel collocation method embodiment 2;
Fig. 3 is the corresponding contextual schematic flow sheet of profile invalid among the robustness of the present invention pressure channel collocation method embodiment 3;
Fig. 4 is the modular structure sketch map of a robustness of the present invention pressure channel inking device embodiment 1;
Fig. 5 is the modular structure sketch map of a robustness of the present invention pressure channel inking device embodiment 2.
Embodiment
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment 1
Below in conjunction with Fig. 1 the scheme of the embodiment 1 of ROHC channel arrangement method involved in the present invention is done further detailed description:
Step S101: receive the request of ROHC channel arrangement, wherein carry ROHC channel arrangement parameter, get into step S102;
In the present embodiment, can be through the interface of reshuffling, perhaps already present ROHC channel arrangement interface (if the ROHC passage exists, is then thought to reshuffle current ROHC passage and is received the request of said ROHC channel arrangement.
Said ROHC channel arrangement parameter comprises the parameter (LARGE_CIDS), the parameter (MAX_CID) that is used to show maximum Context identifier that are used to show the Context identifier size, be used to show the parameter (PROFILES) and the maximum recomposition unit (MRRU) of the bag stream type set of support.
Whether step S102:ROHC channel arrangement parameter is legal, if legal then get into step S103, otherwise would get into step S104;
Whether step S103:ROHC passage exists, if exist then get into step S106, otherwise gets into step S105;
Step S104:ROHC channel arrangement parameter error, the backward channel configuration failure, flow process finishes;
Step S105: newly-built ROHC passage gets into step S112;
Step S106:, get into step S107 according to the LARGE_CIDS reprovision ROHC channel parameters LARGE_CIDS in the configuring request;
Step S107:, get into step S108 according to the MAX_CID reprovision ROHC channel parameters MAX_CID in the configuring request;
Step S108:, get into step S109 according to the PROFILES reprovision ROHC channel parameters PROFILES in the configuring request;
Step S109:, get into step S110 according to the MRRU reprovision ROHC channel parameters MRRU in the configuring request;
Step S110: the feedback data that deletion is not sent gets into step S111;
The feedback data of not sending can lose efficacy because of reconfiguring of ROHC channel arrangement parameter, and the feedback data that deletion is not sent can the releasing memory space.This step is optional.
Step S111: the IR (Initialization and Rerfresh, initialization and refresh) that all compressed context are set is designated TRUE (make receive new grouped data to be compressed can send the IR message), gets into step S112;
The operation of this step is the remaining compressed context of initialization.
Above step S106 to S111 does not have the sequencing restriction.
Step S112:ROHC passage reprovision flow process finishes.
Embodiment 2
What ROHC channel arrangement method embodiment 2 of the present invention and preceding text embodiment 1 were different is; Before or after step S107 reconfigures MAX_CID according to the MAX_CID in the configuring request; This method comprises that also Context identifier is greater than compression, the decompression context of the MAX_CID in the said configuring request (the present invention is also referred to as NewMaxCid) in the former ROHC passage of deletion; And then discharge the content space that invalid compression or decompression context take; That is, the CID greater than the MAX_CID in the said configuring request is invalid CID.
As shown in Figure 2, for the contextual flow process of deleting invalid CID specifically comprises:
Step S201: obtain the MAX_CID value NewMaxCid of new configuration, get into step S202;
Step S202: obtain the MAX_CID value OldMaxCid of former ROHC passage, get into step S203;
Step S203: whether judge NewMaxCid less than OldMaxCid,, otherwise get into step S206 if then get into step S204;
Step S204: sign gets into step S205 greater than the context of NewMaxCid in the deletion compressed context;
Step S205: sign gets into step S206 greater than the context of NewMaxCid in the deletion decompression context;
Step S206: deletion CID finishes greater than the contextual flow process of NewMaxCid.
Embodiment 3
What ROHC channel arrangement method embodiment 3 of the present invention and preceding text embodiment 1 were different is; Step S108 is according to before or after the PROFILES reprovision ROHC channel parameters PROFILES in the configuring request; This method also comprises deletes corresponding compression, the decompression context of template (profile) that belongs to the PROFILES of former ROHC passage but do not belong to the PROFILES in the said configuring request; And then discharge the content space that invalid compression or decompression context take, promptly belong to the PROFILES of former ROHC passage but the profile that do not belong to the PROFILES in the said configuring request is invalid profile.
As shown in Figure 3, delete the corresponding contextual flow process of invalid profile and specifically comprise:
Step S301: obtain the PROFILES set aPrfsNew of new configuration, get into step S302;
Step S302: obtain the PROFILES set aPrfsOld of former ROHC passage, get into step S303;
Step S303: first profile value of obtaining among the aPrfsOld is designated as Prf_Val, gets into step S304;
Step S304: judge whether Prf_Val belongs to the aPrfsNew set, is then to get into step S307, otherwise get into step S305;
Step S305: the profile value is the context of Prf_Val in the deletion compressed context, gets into step S306;
Step S306: the profile value is the context of Prf_Val in the deletion decompression context, gets into step S307;
Step S307: judging the profile that whether does not compare in addition in the aPrfsOld set, is then to get into step S308, otherwise gets into step S309;
Step S308: the next profile value of obtaining among the aPrfsOld is designated as Prf_Val, gets into step S304;
Step S309: delete the corresponding contextual flow process of invalid profile and finish.
Optimum embodiment is; Except that reconfiguring, also delete in original ROHC passage greater than reprovision MAX_CID and do not belong to the compressed and decompressed context in the reprovision PROFILES set, and need the remaining compressed context of initialization according to the ROHC channel arrangement parameter in the said configuring request; Delete feedback data to be sent; Thereby save the channel arrangement time, discharge the memory headroom that invalid data takies, improve compressed and decompressed efficient.
Corresponding to above method, the present invention also provides a kind of robustness pressure channel inking device embodiment 1, and as shown in Figure 4, this device comprises:
The configuring request receiver module is used to receive the request of robustness head compression (ROHC) channel arrangement, wherein carries ROHC channel arrangement parameter;
The passage judge module is used to judge whether the ROHC passage exists;
The channel arrangement processing module is used for when judging that the ROHC passage exists, reconfiguring and the initialization compressed context according to the channel arrangement parameter in the said configuring request, otherwise according to the newly-built ROHC passage of said channel arrangement parameter.
Particularly, said ROHC channel arrangement parameter comprises the parameter (LARGE_CIDS), the parameter (MAX_CID) that is used to show maximum Context identifier that are used to show the Context identifier size, is used to show the parameter (PROFILES) and the maximum recomposition unit (MRRU) of the bag stream type set of support.
Preferably, in a robustness pressure channel inking device embodiment 2, different with device embodiment shown in Figure 41 is; As shown in Figure 5; This device also comprises invalid data removing module, is used for when judging that the ROHC passage exists the invalid data behind the removing passage reprovision.
Corresponding to preceding method embodiment 1, this invalid data is removed module and is used for when judging that the ROHC passage exists, deleting feedback data to be sent.
Corresponding to preceding method embodiment 2, this invalid data is removed module and also is used for when judging that the ROHC passage exists, and deletes in the former ROHC passage Context identifier greater than compression, the decompression context of the MAX_CID in the said configuring request.
Corresponding to preceding method embodiment 3; This invalid data is removed module and also is used for when judging that the ROHC passage exists, and deletes corresponding compression, the decompression context of template (profile) that belongs to the PROFILES of former ROHC passage but do not belong to the PROFILES in the said configuring request.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Compared to prior art, the method and apparatus that ROHC passage of the present invention is reshuffled has the following advantages:
Reduced when needing releasing memory space and newly-built ROHC passage when original ROHC passage is deleted and to have applied for the memory headroom process again, saved the time, improved wireless link reconfigured efficient.
Change under the situation seldom in user's current business, directly use most of compression, decompression context, can improve the efficient of wireless link reconfigured back compression and decompression;
Strengthened the user in moving process or the experience in the wireless environment change process.
Claims (10)
1. robustness pressure channel collocation method is characterized in that this method comprises:
Receive the request of robustness head compression (ROHC) channel arrangement, wherein carry ROHC channel arrangement parameter;
Judge whether the ROHC passage exists;
Judge to reconfigure and the initialization compressed context according to the ROHC channel arrangement parameter in the said configuring request when ROHC passage exists, otherwise according to the newly-built ROHC passage of said ROHC channel arrangement parameter.
2. the method for claim 1 is characterized in that: said ROHC channel arrangement parameter comprises the parameter (LARGE_CIDS), the parameter (MAX_CID) that is used to show maximum Context identifier that are used to show the Context identifier size, be used to show the parameter (PROFILES) and the maximum recomposition unit (MRRU) of the bag stream type set of support.
3. the method for claim 1 is characterized in that: judge that this method also comprised when the ROHC passage existed: delete in the former ROHC passage Context identifier greater than compression, the decompression context of the MAX_CID in the said configuring request.
4. the method for claim 1; It is characterized in that: judge that this method also comprised when the ROHC passage existed: delete corresponding compression, the decompression context of template (profile) that belongs to the PROFILES of former ROHC passage but do not belong to the PROFILES in the said configuring request.
5. the method for claim 1 is characterized in that: judge that this method also comprised: delete feedback data to be sent when the ROHC passage existed.
6. robustness pressure channel inking device is characterized in that this device comprises:
The configuring request receiver module is used to receive the request of robustness head compression (ROHC) channel arrangement, wherein carries ROHC channel arrangement parameter;
The passage judge module is used to judge whether the ROHC passage exists;
The channel arrangement processing module is used for when judging that the ROHC passage exists, reconfiguring and the initialization compressed context according to the channel arrangement parameter in the said configuring request, otherwise according to the newly-built ROHC passage of said channel arrangement parameter.
7. device as claimed in claim 6 is characterized in that: said ROHC channel arrangement parameter comprises the parameter (LARGE_CIDS), the parameter (MAX_CID) that is used to show maximum Context identifier that are used to show the Context identifier size, be used to show the parameter (PROFILES) and the maximum recomposition unit (MRRU) of the bag stream type set of support.
8. device as claimed in claim 6; It is characterized in that: this device also comprises invalid data removing module; Be used for when judging that the ROHC passage exists, delete in the former ROHC passage Context identifier greater than compression, the decompression context of the MAX_CID in the said configuring request.
9. device as claimed in claim 6; It is characterized in that: this device also comprises invalid data removing module; Be used for when judging that the ROHC passage exists, delete corresponding compression, the decompression context of template (profile) that belongs to the PROFILES of former ROHC passage but do not belong to the PROFILES in the said configuring request.
10. device as claimed in claim 6 is characterized in that: this device also comprises invalid data removing module, is used for when judging that the ROHC passage exists, deleting feedback data to be sent.
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| CN2012100021456A CN102448116A (en) | 2012-01-05 | 2012-01-05 | Method and device for configuring robust header compress channel |
| PCT/CN2012/075803 WO2013102336A1 (en) | 2012-01-05 | 2012-05-21 | Rohc channel configuration method and device |
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| CN2012100021456A CN102448116A (en) | 2012-01-05 | 2012-01-05 | Method and device for configuring robust header compress channel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013102336A1 (en) * | 2012-01-05 | 2013-07-11 | 中兴通讯股份有限公司 | Rohc channel configuration method and device |
| CN107426771A (en) * | 2016-05-23 | 2017-12-01 | ***通信有限公司研究院 | A kind of data transmission method and device |
| WO2023071567A1 (en) * | 2021-10-26 | 2023-05-04 | 华为技术有限公司 | Transmission channel reconfiguration method and apparatus, and electronic device |
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| US20070195764A1 (en) * | 2006-02-22 | 2007-08-23 | Nortel Networks Limited | Service Flow with Robust Header Compression (ROHC) in a WiMAX Wireless Network |
| CN101141744A (en) * | 2007-10-19 | 2008-03-12 | 华为技术有限公司 | Terminal compression mode starting method, wireless network controller and terminal |
| CN101686492A (en) * | 2008-09-22 | 2010-03-31 | 中兴通讯股份有限公司 | Method and device for processing ROHC service flow based on WiMAX system |
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| US8811161B2 (en) * | 2007-09-21 | 2014-08-19 | Intellectual Discovery Co., Ltd. | Method of creating and deleting service flow for robust header compression, and wireless communication system supporting the same |
| CN102448116A (en) * | 2012-01-05 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for configuring robust header compress channel |
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- 2012-05-21 WO PCT/CN2012/075803 patent/WO2013102336A1/en active Application Filing
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| US20070195764A1 (en) * | 2006-02-22 | 2007-08-23 | Nortel Networks Limited | Service Flow with Robust Header Compression (ROHC) in a WiMAX Wireless Network |
| CN101141744A (en) * | 2007-10-19 | 2008-03-12 | 华为技术有限公司 | Terminal compression mode starting method, wireless network controller and terminal |
| CN101686492A (en) * | 2008-09-22 | 2010-03-31 | 中兴通讯股份有限公司 | Method and device for processing ROHC service flow based on WiMAX system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013102336A1 (en) * | 2012-01-05 | 2013-07-11 | 中兴通讯股份有限公司 | Rohc channel configuration method and device |
| CN107426771A (en) * | 2016-05-23 | 2017-12-01 | ***通信有限公司研究院 | A kind of data transmission method and device |
| CN107426771B (en) * | 2016-05-23 | 2020-07-17 | ***通信有限公司研究院 | Data transmission method and device |
| WO2023071567A1 (en) * | 2021-10-26 | 2023-05-04 | 华为技术有限公司 | Transmission channel reconfiguration method and apparatus, and electronic device |
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| WO2013102336A1 (en) | 2013-07-11 |
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