CN100527882C - Method and device for treating disaster recovery after IU interface breaking link - Google Patents

Method and device for treating disaster recovery after IU interface breaking link Download PDF

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Publication number
CN100527882C
CN100527882C CNB2006100366672A CN200610036667A CN100527882C CN 100527882 C CN100527882 C CN 100527882C CN B2006100366672 A CNB2006100366672 A CN B2006100366672A CN 200610036667 A CN200610036667 A CN 200610036667A CN 100527882 C CN100527882 C CN 100527882C
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China
Prior art keywords
system information
territory
information block
chain rupture
interface
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Expired - Fee Related
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CNB2006100366672A
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Chinese (zh)
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CN1901688A (en
Inventor
金明
陈取才
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CNB2006100366672A priority Critical patent/CN100527882C/en
Publication of CN1901688A publication Critical patent/CN1901688A/en
Priority to PCT/CN2007/070246 priority patent/WO2008014699A1/en
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Publication of CN100527882C publication Critical patent/CN100527882C/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections

Abstract

This invention discloses a disaster tolerant process method after the chain of the IU interface is broken including: after the chain of the IU interface is broken, a radio netwoirk controller updates the system information block related to the chain broken domain so as to lead user terminals to re-select or re-direction available networks, which can avoid happening of large scale network-lost events due to the broken of the IU interfaces and the invention also discloses a disaster-tolerant process device.

Description

Disaster tolerance processing method and equipment after the chain rupture of IU interface
Technical field
The present invention relates to a kind of communication system, relate in particular to processing method and equipment after the interface chain rupture of a kind of wireless access network and core net.
Background technology
In 3-G (Generation Three mobile communication system) (3G), the IU interface is the agreement reference point between radio base station controller (RNC) and the core net (CN), is that core net provides service an indispensable link for mobile phone users.Therefore, the reliability of IU interface transmission is one of emphasis of operator's concern.
Although had a lot of measures can avoid the generation of IU chain rupture incident at present, for example adopt measures such as Iu Flex (Intra Domain Connection of RAN Nodes to Multiple CN Nodes, UTRAN support a RAN node to connect routing function in the territory of a plurality of CN nodes) backup and the backup of Iu mouth port.But these measures have just reduced the probability of IU chain rupture, can not stop the generation of IU chain rupture fully.After the chain rupture of IU mouth, the influence that causes is quite abominable, may occur that the user in the extensive scope can't use the 3G service in the RNC, can not receive call business, even urgent calls such as 119 also can't be connected from other networks---be so-called network paralysis.That is to say that adopt after the above-mentioned measure in case " backup port fault " or " Iu Flex node failure " takes place, network paralysis still can't be avoided.This can give the tremendous loss that causes of operator.
Summary of the invention
The object of the present invention is to provide the disaster tolerance processing method after the chain rupture of a kind of IU interface, in order to solve the technical problem of falling net on a large scale that causes because of the chain rupture of IU interface.
One aspect of the present invention provides the disaster tolerance processing method after the chain rupture of a kind of IU interface, and after the chain rupture of described IU interface, the system information block that wireless network controller updates is relevant with the chain rupture territory is so that guide the user terminal selecting gravity treatment or be redirected to available network.
Particularly, comprise that described radio network controller judges whether to be all territory chain ruptures; If not, then described updating system information piece is for deleting the described chain rupture territory in the system information block that comprises core network information; If then described updating system information piece is set to forbid for the sub-district access state parameter in the system information block that comprises cell selecting and reselecting parameters.
Particularly, comprise also when link is recovered in described territory described radio network controller judges whether described IU interface also has other available domain; If have, then the territory of recovering is added in the described system information block that comprises core network information; If no, the sub-district access state parameter in the then described system information block that comprises cell selecting and reselecting parameters is set to not forbid, and the territory of recovering is added in the described system information block that comprises core network information.
The present invention provides the disaster tolerance treatment facility after the chain rupture of a kind of IU interface on the other hand, comprising: update module is used for upgrading the system information block relevant with the chain rupture territory after the chain rupture of described IU interface, so that guide the user terminal selecting gravity treatment or be redirected to available network;
With the chain rupture judge module that described update module couples, being used to judge whether is all territory chain ruptures, produces first negative judged result or the second sure judged result; Described update module comprise with the corresponding removing module of described first judged result and with the corresponding module that is provided with of described second judged result, described removing module is used for deleting the described chain rupture territory of the system information block that comprises core network information, describedly the sub-district access state parameter that module is used for comprising the system information block of cell selecting and reselecting parameters is set is set to forbid;
Recover judge module, be used to judge whether described IU interface also had other available domain when link was recovered in described territory, produced the 3rd sure judged result or the 4th negative judged result; Couple with described recovery judge module with the corresponding interpolation module of described the 3rd judged result, be used for adding the territory of recovering to the described system information block that comprises core network information; Couple with described recovery judge module with the corresponding recovery module of described the 4th judged result, be used for the described sub-district access state parameter that comprises the system information block of cell selecting and reselecting parameters and be set to not forbid, and the territory of recovering is added in the described system information block that comprises core network information.
Disaster tolerance processing method after this IU interface provided by the invention chain rupture can be carried out by the equipment that is deployed in the radio network controller provided by the invention, this equipment is by upgrading the system information block relevant with the chain rupture territory, so that in follow-up interactive program, guide the user terminal selecting gravity treatment or be redirected to available network, thereby avoid occurring falling on a large scale the generation of online story part.
Description of drawings
Fig. 1 for realize when of the present invention based on the block diagram of system;
Fig. 2 is the block diagram of first specific embodiment of the disaster tolerance treatment facility after the IU interface provided by the invention chain rupture;
Fig. 3 is the block diagram of second specific embodiment of the disaster tolerance treatment facility after the IU interface provided by the invention chain rupture;
Fig. 4 is the block diagram of the 3rd specific embodiment of the disaster tolerance treatment facility after the IU interface provided by the invention chain rupture;
The flow chart of the disaster tolerance processing method of Fig. 5 after for the IU interface provided by the invention chain rupture of the equipment that can provide based on Fig. 2;
The flow chart of the disaster tolerance processing method of Fig. 6 after for the IU interface provided by the invention chain rupture of the equipment that can provide based on Fig. 3;
The part flow chart of the disaster tolerance processing method of Fig. 7 after for the IU interface provided by the invention chain rupture of the equipment that can provide based on Fig. 4.
Embodiment
With reference to figure 1, illustrate realize when of the present invention based on system.As shown in the figure, the IU interface is the agreement reference point between radio network controller (RNC) and the core net (CN), is that core net is that user terminal (UE) provides service an indispensable link.
Disaster tolerance treatment facility after the IU interface provided by the invention chain rupture and method can be implemented on the RNC in Fig. 1.What deserves to be explained is that described equipment can be deployed on the RNC by the form of software, can certainly be deployed among the RNC by the form of hardware or firmware.Described method then can be thought to carry out by RNC.
With reference to figure 2, illustrate first specific embodiment of the disaster tolerance treatment facility after the IU interface provided by the invention chain rupture.As shown in the figure, equipment 100 comprises update module 102.Described update module 102 is passed through the information in relevant chain rupture territory in the updating system information piece (SIB) after the information that receives the chain rupture of IU interface, thereby cause that UE is redirected or reselects to other available networks, GSM for example, GPRS, CDMA2000 etc. guarantee the availability of user's service.After utilizing this equipment, IU interface chain breaking problem has just had switchover mechanism in wireless access network one side, the definition of some agreements in this equipment utilization prior art, by upgrading the chain rupture domain information, triggering UE selects gravity treatment or is redirected to other available networks, thereby make UE turn to other available network, also just avoided the generation of large tracts of land suspension.
A basic scene of the invention process is that the IU interface has a plurality of territories, and circuit commutative field (CS) and packet-switched domain (PS) are for example arranged.Therefore, in second specific embodiment of the present invention, as shown in Figure 3, equipment 200 comprises the chain rupture judge module 101 that couples with described update module 102.This chain rupture judge module 101 is used to judge whether be all territory chain ruptures (for example whole chain ruptures of CS and PS), give update module 102 if then produce a sure judged result, then produce a judged result of negating if not whole territories chain rupture (for example having only the CS chain rupture) and give update module 102.Update module 102 correspondingly also is divided into two submodules: with the affirmative determination result corresponding be provided with module 104 and with the corresponding removing module 105 of negative judged result.Information deletion in the relevant information (for example " the CN domain systeminformation list " of SIB1) in the territory (for example CS) of chain rupture will will take place in described removing module 105 from all system information of subdistricts pieces (for example SIB1 the present embodiment).After the deletion, UE resident among the RNC still resides among the RNC, in case the user initiates service request, in fact this request can cause RNC UE is redirected to other network.The described module 104 that is provided with is set to forbid (barred) to the sub-district access state of the system information block that comprises cell selecting and reselecting parameters in all sub-districts (for example SIB3), and UE finds that can start reuse adoption process after the sub-district is under an embargo searches for other available network.Present embodiment is distinguished the situation of come individual domain and all territory chain ruptures, compatible mutually by different processing with prior protocols, utilizing the UE call redirection mechanism of existing protocol to finish UE is redirected, avoided large tracts of land to fall net, and since with the existing protocol compatibility, reduced and transformed the cost of implementing, and had favorable compatibility.
Processing when in a preferred embodiment of the invention, also having increased the territory and recover.As shown in Figure 4, equipment 300 is except having equipment 200 all modules, also comprise and recover judge module 106, be used to judge whether described IU interface also had other available domain when link was recovered in the territory, produce sure judged result and be sent to add module 107 or produce the judged result of negating and be sent to recovery module 108.Described interpolation module 107 and recovery module 108 couple with described judge module 106 respectively.Described interpolation module 107 is used for adding the territory of recovering to comprise core network information system information block (for example SIB1), and is concrete, the territory of recovering can be added among " the CN domain system information list " of SIB1.The sub-district access state parameter that described recovery module 108 is used for comprising the system information block (for example SIB3) of cell selecting and reselecting parameters is set to not forbid (not barred), and the territory of recovering is added in the described system information block (for example SIB1) that comprises core network information, the territory that only comprises recovery among " the CN domain system information list " of SIB1 promptly is set.Work of treatment after the IU interface chain rupture that present embodiment is more perfect.
With reference to figure 5, illustrate the flow process of the disaster tolerance processing method after the IU interface provided by the invention chain rupture of the equipment that can provide based on Fig. 2.As shown in the figure, the flow process of this method begins with the message that receives the chain rupture of IU interface, comprises step:
510: upgrade the system information block relevant, for example " CN domain systeminformation list " among the SIB1 or the sub-district access state among the SIB3 etc. with the chain rupture territory;
With reference to figure 6, illustrate the flow process of the disaster tolerance processing method after the IU interface provided by the invention chain rupture of the equipment that can provide based on Fig. 3.As shown in the figure, the flow process of this method begins with the message that receives the chain rupture of IU interface, comprises step:
610: judge whether into all territory chain ruptures, if then change step 611; If not then changeing step 612;
611: the sub-district access state parameter that comprises in the system information block (for example SIB3) of cell selecting and reselecting parameters is set to forbid;
612: delete the described chain rupture domain information (for example information in " CN domain system information list ") in the system information block (for example SIB1) that comprises core network information;
After described equipment (for example RNC) is finished above-mentioned steps,, then arrive other available networks according to the consultation gravity treatment if whole territory chain rupture scene during the UE read system information, finds that the sub-district is under an embargo.If not whole territory chain rupture scenes, during the UE read system information, find that the sub-district is not under an embargo, then continue to reside in the former network (also might owing to reasons such as signal are selected gravity treatment to other available networks), if this moment, UE made a call, RNC finds the corresponding domain chain rupture, then can refuse UE and call out, and in refuse information, comprise the frequency point information of other available networks, thereby make UE be redirected to other available networks.
With reference to figure 7, illustrate the part flow chart of the disaster tolerance processing method after the IU interface provided by the invention chain rupture of the equipment that can provide based on Fig. 4, remaining flow chart is identical with the flow chart that Fig. 6 provides.This a part of flow process begins to receive the territory recovering information, comprises step:
710: judge whether described IU interface also has other available domain; If have, then change step 711; If not then change step 712;
711: the territory of recovering is added in the described system information block that comprises core network information (for example " the CN domain system information list " among the SIB1);
712: the sub-district access state parameter in the described system information block (for example SIB3) that comprises cell selecting and reselecting parameters is set to not forbid (not barred), and the territory of recovering is added in the described system information block that comprises core network information (for example " the CN domain system informationlist " among the SIB1).
Above-mentioned steps is the handling process behind the link-recovery of territory, and behind the link-recovery of territory, the barred state is all removed in all sub-districts under the RNC, and UE can residently obtain corresponding business service to this sub-district.
What deserves to be explained is that the present invention is not limited to the IU interface and has only two territories, can be generalized to one or more territories.
Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.

Claims (6)

1. the disaster tolerance processing method after the IU interface chain rupture is characterized in that: after the chain rupture of described IU interface, and the wireless network controller updates system information block, so that guiding user terminal selecting gravity treatment or be redirected to available network comprises:
Described radio network controller judges whether to be all territory chain ruptures, if not, then
Described updating system information piece is for deleting the described chain rupture territory in the system information block that comprises core network information; If, then
Described updating system information piece is set to forbid for the sub-district access state parameter in the system information block that comprises cell selecting and reselecting parameters;
When link was recovered in described territory, described radio network controller judged whether described IU interface also has other available domain; If have, then
The territory of recovering is added in the described system information block that comprises core network information; If no, then
Sub-district access state parameter in the described system information block that comprises cell selecting and reselecting parameters is set to not forbid, and the territory of recovering is added in the described system information block that comprises core network information.
2. the disaster tolerance processing method after the IU interface according to claim 1 chain rupture is characterized in that: the described system information block that comprises core network information is SIB1; The described system information block that comprises cell selecting and reselecting parameters is SIB3.
3. the disaster tolerance processing method after the IU interface according to claim 1 and 2 chain rupture is characterized in that: described territory is circuit commutative field or exchanges data territory.
4. the disaster tolerance treatment facility after the IU interface chain rupture comprises:
The chain rupture judge module is used to judge whether the chain rupture of whole territories, produces first negative judged result or the second sure judged result;
Update module and described chain rupture judge module couple, comprise with the corresponding removing module of described first judged result and with the corresponding module that is provided with of described second judged result, described removing module is used for deleting the described chain rupture territory of the system information block that comprises core network information, describedly the sub-district access state parameter that module is used for comprising the system information block of cell selecting and reselecting parameters is set is set to forbid;
Recover judge module, be used to judge whether described IU interface also had other available domain when link was recovered in described territory, produced the 3rd sure judged result or the 4th negative judged result;
Couple with described recovery judge module with the corresponding interpolation module of described the 3rd judged result, be used for adding the territory of recovering to the described system information block that comprises core network information;
Couple with described recovery judge module with the corresponding recovery module of described the 4th judged result, be used for the described sub-district access state parameter that comprises the system information block of cell selecting and reselecting parameters and be set to not forbid, and the territory of recovering is added in the described system information block that comprises core network information.
5. the disaster tolerance treatment facility after the IU interface according to claim 4 chain rupture is characterized in that: the described system information block that comprises core network information is SIB1; The described system information block that comprises cell selecting and reselecting parameters is SIB3.
6. according to the disaster tolerance treatment facility after claim 4 or the 5 described IU interface chain ruptures, it is characterized in that: described territory is circuit commutative field or exchanges data territory.
CNB2006100366672A 2006-07-25 2006-07-25 Method and device for treating disaster recovery after IU interface breaking link Expired - Fee Related CN100527882C (en)

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Application Number Priority Date Filing Date Title
CNB2006100366672A CN100527882C (en) 2006-07-25 2006-07-25 Method and device for treating disaster recovery after IU interface breaking link
PCT/CN2007/070246 WO2008014699A1 (en) 2006-07-25 2007-07-06 Disaster tolerant process method after the chain of the iu interface is broken and the apparatus thereof

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CN101282508B (en) * 2007-04-03 2011-06-15 华为技术有限公司 Method, equipment and system for transmitting system information of multi-core network operation business system
CN101296464B (en) * 2007-04-23 2011-07-27 大唐移动通信设备有限公司 Processing method and system of Iub port after chain fracture and chain fracture recovery

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EP1157571B1 (en) * 1999-03-08 2010-06-09 Nokia Corporation Transmission method in a mobile communication system
CN1223215C (en) * 2002-09-23 2005-10-12 华为技术有限公司 Load control method for Iu interface supporting Iu Flex technique

Non-Patent Citations (1)

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3rd Generation Partnership Project,Technical SpecificationGroup Radio Access Network,Radio Resource Control(RRC),protocol specification. 3GPP TS 25.331,第V6.0.0卷. 2003 *

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