CN101374315B - Method for holding business when wireless network layer user surface processing element fault - Google Patents
Method for holding business when wireless network layer user surface processing element fault Download PDFInfo
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- CN101374315B CN101374315B CN2007101433645A CN200710143364A CN101374315B CN 101374315 B CN101374315 B CN 101374315B CN 2007101433645 A CN2007101433645 A CN 2007101433645A CN 200710143364 A CN200710143364 A CN 200710143364A CN 101374315 B CN101374315 B CN 101374315B
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Abstract
The invention provides a method for maintaining business when wireless network level user side treatment component is fault. When the wireless network level user side treatment component is fault, the wireless network level control side selects another activated wireless network level user side treatment component to carry out entity reconstruction; after the entity reconstruction is carried out, the wireless network level control side conducts corresponding transmission interface component to update connection relationship; at last the wireless link control serial number is justified. The technical scheme according to the invention can solve the business maintenance problem when the communication system wireless network level user side treatment component is fault, which improves reliability of communication system.
Description
Technical field
The present invention relates to the method for customer service Hot Spare in the wireless access system, be specifically related to the method for RNLU (Radio Network Layer User Plane wireless network layer user surface) professional maintenance when processing unit breaks down.
Background technology
In the WCDMA wireless access system; Customer call is generally set up service link end to end through RNLC (Radio NetworkLayer Control Plane wireless network layer chain of command) signaling protocol; The layer 2 protocol processing entities general designation RNLU protocol layer of service link, following one deck of RNLU protocol layer is a transport layer.
Correspondingly, be divided into the coffret parts, RNLC signaling process parts and RNLU business data processing parts in general WCDMA RNC (radio network controller) equipment.
Interface unit carries out alternately with other network elements; Signaling process parts transmitting-receiving implementing signalling call manager is handled resource according to call property in Business Processing parts distribution service, handles resource in the interface unit distribution interface; And realize continuing of interface unit and Business Processing parts; After completion is continued in inside, notify other network elements, accomplish signaling process, call completion.
RNLU Business Processing parts generally adopt the resource pool mode, carry out load sharing.RNLU Business Processing parts possibly break down under various abnormal conditions, and the integrated level of RNLU parts is generally higher, if there is not the mechanism of Hot Spare, can cause large-scale call drop so.
Summary of the invention
The professional method that keeps can realize that the business of having connected still can keep when the technical problem that the present invention will solve provided RNLU processing unit fault when RNLU protocol processes parts break down.
In order to address the above problem, the professional method that keeps when the invention provides a kind of wireless network layer user surface processing element fault may further comprise the steps:
A wireless network layer chain of command knows that wireless network layer user surface processing element breaks down, and selects another activated wireless network layer user surface processing element to carry out volume reconstruction;
Behind the b volume reconstruction, wireless network layer chain of command instruction associated transport interface unit carries out annexation to be upgraded;
C carries out the alignment of Radio Link control sequence number.
Further; Said step a specifically is meant: the wireless network layer chain of command detects current wireless network layer user surface processing element and breaks down; For current business is selected another activated wireless network layer user surface processing element, and instruct the wireless network layer user surface processing element of said selection to set up the required various entities of said current business.
Further, said step b specifically is meant: the relevant coffret parts of wireless network layer chain of command notice current business by with change to being connected of the wireless network layer user surface processing element that breaks down and being connected of the wireless network layer user surface processing element of said selection.
Further, among the said step c: then carry out the alignment of Radio Link control sequence number through sending reconstruction message for the opposite end mobile phone if said radio link control entity is the affirmation mode type;
Then obtain Connection Frame Number synchronously again and carry out the alignment of Radio Link control sequence number if said radio link control entity is the transparent mode type;
If being the Unacknowledged Mode type, said radio link control entity then notify the opposite end mobile phone to rebuild snap to none wired link control sequence number.
Further; Said entity comprises radio bearer, Radio Link control, medium access control, Frame Protocol, IU interface user plane entity; When said business is a packet-switched domain, then said entity also comprises packet data convergence protocol and general packet wireless service tunnel protocol user plane entity.
Further, said coffret parts comprise: the asynchronous transfer mode of IU, IUB and IUR interface or procotol transmission process entity.
Further, if the said reconstruction message reset sequence number of carrying needs alignment, then one of in the following manner alignment:
Wireless network layer user surface notice wireless network layer chain of command was preserved when reset sequence number changed, and carried the reset sequence number after the preservation when sending reconstruction message; Or send two reconstruction message, and reset sequence number is respectively 0 or 1, and the reconstruction message consistent with the reset sequence number of self selected in the opposite end, and abandons another reconstruction message.
Further; Among the said step a; If currently opened encryption; Then periodically or when the Hyper Frame Number carry, will encrypt counter and send to wireless network layer chain of command parts preservations,, carries the wireless network layer chain of command encryption counter, AES kind and key when instructing the wireless network layer user surface processing element volume reconstruction of said selection.
Further, said when periodically preserve encrypting counter, the said cycle less than the duration of Hyper Frame Number carry with recover the poor of processing time.
Further, when rebuilding entity, the information that the Hyper Frame Number of said encryption counter is partly preserved with wireless network layer chain of command parts.
Further, if said current business is a grouping commutative field service, there are not fixed relationship in the address of tunnel endpoint identifier and wireless network layer user surface parts, processing entities sign when rebuilding the general packet wireless service tunnel protocol user plane entity.
Further, said method is used for the wide band CDMA radio connecting system.
In sum, the professional method that keeps when the invention provides RNLU processing unit fault, the business when adopting technical scheme of the present invention can solve RNLU protocol processes unit failure in the communication system keeps problem, has improved the reliability of communication system.
Description of drawings
The professional process chart that keeps when Fig. 1 is RNLU processing unit fault.
Embodiment
The professional method that keeps when the present invention relates to a kind of RNLU processing unit fault, present embodiment is that example describes with the WCDMA system, its treatment step is as shown in Figure 1:
This moment, system hot standby part was in idle condition,
Step 101:RNLC processing unit A detects RNLU processing unit B deferred information, and promptly B breaks down, and A hunts out the business relevant with B, reselects the RNLU parts C of an activation for this business;
Step 102:A instruction C rebuilds the relevant RNLU protocol entity of this business; Promptly set up accomplishing should the described various entity of business; Comprise RB (radio bearer), RLC (Radio Link control), MAC (medium access control), FP (Frame Protocol), IuUP (IU interface user plane); If it is professional that said business is PS (packet-switched domain), described various entities also comprise PDCP (packet data convergence protocol) and GTPU (general packet wireless service tunnel protocol user plane); If currently opened encryption, A also need comprise COUNT-C (encryption counter), AES kind and key etc. in the instruction that C sends;
If PS is professional, when newly-built GTPU entity, to note keeping TEID (tunnel endpoint identifier) constant so, this also just requires the address of TEID and RNLU parts, processing entities sign should not have fixed relationship.
After entity was set up among the step 103:C, A notified this business relevant coffret parts D, instructed it to carry out annexation and upgraded, be about to D by with change to being connected of B and being connected of C, D is transferred to C to the transfer resource of the former B of coming; Wherein the coffret parts comprise the ATM (asynchronous transfer mode) or IP (procotol) the transmission process entity of IU, IUB and IUR interface.
Step 104: after annexation was upgraded and accomplished, A assisted C, carries out the sequence number registration process according to different RLC entity types, and the alignment of RLC is the alignment of SN or CFN (Connection Frame Number); Its concrete processing as follows:
If RLC is AM (affirmation mode) type, then this RLC gives the sequence number that RLC entity transmission RESET (reconstruction) the message acquisition SN (sequence number) of opposite end mobile phone aligns RLC; If the RSN that RESET carries (reset sequence number) also needs to align, alignment schemes has two, the one, and RSN during volume reconstruction carries when sending RESET by the RSN after the variation of RNLC preservation if the RNLU notice RNLC that changes preserves; The 2nd, when sending RESET, send two RESET, RSN is respectively 0 or 1, and the RESET message consistent with the RSN of self is selected in the opposite end, and abandons another RESET message.
If RLC is TM (transparent mode) type, then carry out obtaining again synchronously the align sequence number of RLC of CFN; If RLC is UM (Unacknowledged Mode) type, the sequence number of then notifying mobile phone corresponding RLC in opposite end to rebuild to obtain SN to align RLC;
If currently opened encryption; So also need align to COUNT-C; The alignment of COUNT-C comprises the alignment of HFN (Hyper Frame Number), SN or CFN, because RLC sequence number when alignment SN or CFN align, only needs in RLC sequence number alignment back therefore that alignment get final product to HFN; Its alignment thereof is: when newly-built entity, and the information that the HFN of COUNT-C part is just preserved with the RNLC processing unit.Here need the RNLU processing unit periodically or COUNT-C is sent to the RNLC processing unit during HFN carry and preserve, the HFN part of the back COUNT-C that therefore breaks down is directly with the value of the HFN of the last preservation of RNLC processing unit.If note using the periodic report mode, the cycle should be less than (duration of HFN carry-recovery processing time).Such as for TM, the carry duration of HFN is the 256*10ms=2560 millisecond, recovers the processing time to be estimated as 200 milliseconds, and the cycle should be less than 2360 milliseconds so.Do like this is in order to guarantee to reduce the error of HFN.
Step 105: professional maintenance work is accomplished, and the RNLU parts that break down drop into resource pool once more after restarting, and finishes.
Claims (12)
1. the professional method that keeps during the wireless network layer user surface processing element fault may further comprise the steps:
A wireless network layer chain of command detects current wireless network layer user surface processing element and breaks down, and selects another activated wireless network layer user surface processing element for current business and carries out volume reconstruction;
Behind the b volume reconstruction, wireless network layer chain of command instruction associated transport interface unit carries out annexation to be upgraded;
C carries out the alignment of Radio Link control sequence number.
2. the professional method that keeps during wireless network layer user surface processing element fault as claimed in claim 1; It is characterized in that; Said step a specifically is meant: said wireless network layer chain of command detects said current wireless network layer user surface processing element and breaks down; For said current business is selected said another activated wireless network layer user surface processing element, and instruct the wireless network layer user surface processing element of said selection to set up the required various entities of said current business.
3. the professional method that keeps during wireless network layer user surface processing element fault as claimed in claim 1; It is characterized in that said step b specifically is meant: the relevant coffret parts of wireless network layer chain of command notice current business by with change to being connected of the wireless network layer user surface processing element that breaks down and being connected of the wireless network layer user surface processing element of said selection.
4. the professional method that keeps during wireless network layer user surface processing element fault as claimed in claim 1; It is characterized in that, among the said step c: then carry out the alignment of Radio Link control sequence number through sending reconstruction message for the opposite end mobile phone if said radio link control entity is the affirmation mode type;
Then obtain Connection Frame Number synchronously again and carry out the alignment of Radio Link control sequence number if said radio link control entity is the transparent mode type;
If being the Unacknowledged Mode type, said radio link control entity then notify the opposite end mobile phone to rebuild snap to none wired link control sequence number.
5. the professional method that keeps during wireless network layer user surface processing element fault as claimed in claim 2; It is characterized in that said entity comprises radio bearer (RB), Radio Link control (RLC); Medium access control (MAC); Frame Protocol (FP) and IU interface user plane entity (IuUP), when said business is a packet-switched domain, then said entity also comprises packet data convergence protocol (PDCP) and general packet wireless service tunnel protocol user plane (GTPU) entity.
6. the professional method that keeps is characterized in that said coffret parts comprise: the asynchronous transfer mode of IU, IUB and IUR interface or procotol transmission process entity during wireless network layer user surface processing element fault as claimed in claim 3.
7. the professional method that keeps is characterized in that during wireless network layer user surface processing element fault as claimed in claim 4, if the reset sequence number that said reconstruction message is carried needs alignment, and then one of in the following manner alignment:
Wireless network layer user surface notice wireless network layer chain of command was preserved when reset sequence number changed, and carried the reset sequence number after the preservation when sending reconstruction message; Or send two reconstruction message, and reset sequence number is respectively 0 or 1, and the reconstruction message consistent with the reset sequence number of self selected in the opposite end, and abandons another reconstruction message.
8. the professional method that keeps during wireless network layer user surface processing element fault as claimed in claim 1; It is characterized in that; Among the said step a; If currently opened encryption, then periodically or when the Hyper Frame Number carry, will encrypt counter and send to the preservation of wireless network layer chain of command parts,, carries the wireless network layer chain of command encryption counter, AES kind and key when instructing the wireless network layer user surface processing element volume reconstruction of said selection.
9. the professional method that keeps is characterized in that during wireless network layer user surface processing element fault as claimed in claim 8, said periodically the preservation when encrypting counter, the said cycle less than the duration of Hyper Frame Number carry with recover the poor of processing time.
10. the professional method that keeps is characterized in that during wireless network layer user surface processing element fault as claimed in claim 8, and when rebuilding entity, the Hyper Frame Number of said encryption counter is partly with the information of wireless network layer chain of command parts preservation.
11. the professional method that keeps during wireless network layer user surface processing element fault as claimed in claim 2; It is characterized in that; If said current business is a grouping commutative field service, there is not fixed relationship in the address of tunnel endpoint identifier and wireless network layer user surface parts and processing entities sign when rebuilding the general packet wireless service tunnel protocol user plane entity.
12. the professional method that keeps is characterized in that said method is used for the wide band CDMA radio connecting system during wireless network layer user surface processing element fault as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101433645A CN101374315B (en) | 2007-08-21 | 2007-08-21 | Method for holding business when wireless network layer user surface processing element fault |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101433645A CN101374315B (en) | 2007-08-21 | 2007-08-21 | Method for holding business when wireless network layer user surface processing element fault |
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| Publication Number | Publication Date |
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| CN101374315A CN101374315A (en) | 2009-02-25 |
| CN101374315B true CN101374315B (en) | 2012-05-09 |
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| CN2007101433645A Expired - Fee Related CN101374315B (en) | 2007-08-21 | 2007-08-21 | Method for holding business when wireless network layer user surface processing element fault |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102612099B (en) * | 2012-04-12 | 2015-08-12 | 中兴通讯股份有限公司 | The reconstruction method of service bearer and device |
| CN109660322B (en) * | 2017-10-12 | 2022-01-11 | 深圳市中兴微电子技术有限公司 | Data processing method and device and computer storage medium |
| CN108092821B (en) * | 2017-12-29 | 2021-05-18 | 京信通信系统（中国）有限公司 | Method and device for recovering packet data convergence protocol PDCP layer communication |
| CN110457502B (en) * | 2019-08-21 | 2023-07-18 | 京东方科技集团股份有限公司 | Knowledge graph construction method, man-machine interaction method, electronic equipment and storage medium |
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