CN101437019A - Preprocessing method for distributing address and mobile performance management entity - Google Patents
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Abstract
The embodiment of the invention discloses a method for preprocessing an allocated address, which comprises the following steps: the corresponding relation between an external data network accessed in an LBO area at a visiting place of a terminal and a data gateway is determined; the data gateway corresponding to the external data network accessed into the terminal is taken as an LBO data gateway; and whether the terminal has an address allocated by the LBO data gateway is judged, and no address is allocated to the terminal when the terminal has the address allocated by the LBO data gateway. The embodiment of the invention also discloses a mobility performance management entity for preprocessing the allocated address, the mobility performance management entity comprises a corresponding relation determination module, an LBO data gateway determination module and a judgment module, and the application of the method can avoid the repeated allocation of new addresses to the terminal.
Description
Technical field
The present invention relates to moving communicating field, particularly distribute pretreated method in address and travelling performance management entity.
Background technology
Mobile communications network is divided into Access Network and two parts of core net usually, wherein Access Network is responsible for terminal (UE, User Equipment) and the foundation of the Radio Resource of core network, and core network generally includes logical nodes such as travelling performance management node, data gateway, terminal unit contractual data server, as shown in Figure 1.Fig. 1 is a mobile communications network schematic diagram in the prior art.
Wherein, the travelling performance management node mainly is responsible for the mobile management of chain of command, comprise the management of terminal context and mobile status, distributing terminals temporary identity sign etc., at packet radio network/universal mobile telecommunications system (GPRS/UMTS, Global Packet Radio System/Universal MobileTelecommunication System) in, the travelling performance management node is the control plane part of inner grouping wireless business supporting node (SGSN, Serving GPRS Supporting Node); And in Long Term Evolution/System Architecture Evolution (LTE/SAE, Long Term Evolution/System ArchitectureEvolution) network, the travelling performance management node is mobile management entity (MME, MobilityManagement Entity).
Data gateway then is used for the gateway that UE inserts outer data network, is responsible for distributing UE IP address, and the data surface anchor point when moving as UE.Corresponding to the GPRS/UMTS network is GGSN, corresponding to the LTE/SAE network be packet data gateway (P-GW, Packet-Gateway).
The terminal unit contractual data server is used for the storage terminal CAMEL-Subscription-Information, and CAMEL-Subscription-Information comprises that terminal allows the outer data network that inserts, the maximum bandwidth that terminal allows etc.For ownership terminal server (HSS, Home Subscriber Server), then is attaching position register (HLR, Home Location Register) for the GPRS/UMTS network for the performance of LTE/SAE network terminal subscription data server.
More than each logical node in different mobile networks, can divide if close and establish, for example, at World Interoperability for Microwave Access, WiMax (WiMAX, World Interoperability for Microwave Access) in the system, to close and establish the travelling performance management node and data gateway is called mobile gateway, but corresponding logic function is constant.
In the mobile communications network of some evolution, for optimizing route, reduce the purpose of transfer of data time-delay, introduce visit ground and inserted (LBO, Local breakout) notion, LBO is meant when terminal during from belonging area network roaming access zone network, can be by carrying out the process of travelling performance management, the mobile message of terminal is moved to another travelling performance management node from a travelling performance management node, at this moment, terminal is also in the data gateway distributing IP address on visit ground, thereby data directly from being routed to outer data network with visiting.Such as, when the position that the terminal among Fig. 11 is represented by solid line moves to the position that dotted line represents, just during the access zone network at data gateway 2 places, the mobile message of terminal 1 is moved to travelling performance management node 2 from travelling performance management node 1, and by data gateway 2 is terminal 1 distributing IP address, like this, terminal l can directly communicate by the packet data network (PDN, Packet Date Network) of data gateway 2 with the outside.
UE is at same public land mobile network (PLMN, use the LBO of the data gateway on current visit ground to be called Intra-PLMN LBO when roaming Public Land Mobile Network), UE uses the LBO of the data gateway of current Visited PLMN to be called Inter-PLMN LBO when different PLMN roamings.
In Intra-PLMN LBO and two kinds of application scenarioss of Inter-PLMN LBO, when terminal arrives current visit ground, the IP address that can distribute visit ground on the one hand, simultaneously because the demand of business continuance still needs to keep the IP address on previous visit ground, thereby UE has a plurality of IP address at identical PDN at synchronization scene can appear, if and the position of UE is got back to previous visit ground once more at this moment, also can distribute new IP address, thereby can cause the waste of resource at the new IP address of duplicate allocation, the same region of same PDN.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of distribution address pretreated method, and this method can avoid being the new address of terminal duplicate allocation.
The embodiment of the invention also provides a kind of distribution address pretreated device, and this device can avoid being the new address of terminal duplicate allocation.
For achieving the above object, the technical scheme of the embodiment of the invention specifically is achieved in that
The pretreated method in a kind of distribution address, this method comprises: determine that the visit ground at terminal place inserts the corresponding relation of LBO zone inside and outside data network and data gateway; The data gateway of the outer data network correspondence that described terminal is inserted is as the LBO data gateway; Judge whether described terminal has described LBO data gateway addresses distributed, when terminal has described LBO data gateway addresses distributed, do not give described terminal distribution address.
A kind ofly judge that terminal has the travelling performance management entity of the address of route optimum, described travelling performance management entity comprises:
The corresponding relation determination module is used for determining the outer data network in the LBO zone at terminal place and the corresponding relation of data gateway;
LBO data gateway determination module, the data gateway that is used for outer data network correspondence that described terminal is inserted is as the LBO data gateway;
Judge module is used to judge whether terminal has described LBO data gateway addresses distributed, shows in judged result, when terminal has described LBO data gateway addresses distributed, does not give described terminal distribution address.
As seen from the above technical solution, distribute pretreated method in address and travelling performance management entity in the embodiment of the invention, by judging whether terminal has LBO data gateway addresses distributed, when having LBO data gateway addresses distributed, judge that terminal has the address of routing optimality, and need not to be again the new address of terminal distribution, thereby can avoid at same outer data network and same LBO region the duplicate allocation address.
Description of drawings
Fig. 1 is a mobile communications network schematic diagram in the prior art;
The distribution address pretreated method flow schematic diagram of Fig. 2 for adopting in the embodiment of the invention;
Fig. 3 distributes the pretreated method flow schematic diagram in address in the first embodiment of the invention;
Fig. 4 is for the route district being the schematic diagram of the LBO division of unit;
Fig. 5 distributes the pretreated method flow schematic diagram in address in the second embodiment of the invention;
Fig. 6 is for PLMN being the schematic diagram of the LBO division of unit;
The travelling performance management entity structural representation of Fig. 7 for adopting in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
The pretreated method in a kind of distribution address is in the embodiment of the invention: determine that the visit ground at terminal place inserts the corresponding relation of LBO zone inside and outside data network and data gateway; The data gateway of the outer data network correspondence that described terminal is inserted is as the LBO data gateway; Judge whether described terminal has described LBO data gateway addresses distributed, when terminal has described LBO data gateway addresses distributed, do not give described terminal distribution address.
The distribution address pretreated method flow schematic diagram of Fig. 2 for adopting in the embodiment of the invention.As shown in Figure 2, this method comprises:
Step 201: determine the outer data network in the LBO zone at terminal place and the corresponding relation of data gateway.
In the present embodiment,, determine the outer data network of use and the corresponding relation of data gateway by the LBO zone at terminal place according to the outer data network that is suitable in each the LBO zone that sets in advance and the corresponding relation of data gateway.Operator in advance can be to mobile communication network according to the ground domain information, PLMN for example, MME pond (POOL), tracking area (TA, Tracking Area), route district (RA, and external data gateway, for example GGSN Routing Area) etc.,, P-GW etc. are divided into Different L BO zone at the configuring condition of different regions with network, each zone is suitable for the corresponding relation of one group of outer data network and data gateway, and here, outer data network can adopt the outer data network sign, for example Access Point Name (APN, Access Point Name) is represented.
Step 202: the data gateway of the outer data network correspondence that terminal is inserted is as the LBO data gateway.
Suppose in the present embodiment, in terminal roaming arrives MME POOL1 zone, determine and to use APN1--P-GW1 and the outer data network of APN2--P-GW2 and the corresponding relation of external data gateway that sets in advance.And the PDN that inserts at present is the outer data network that APN1 represents, thereby P-GW1 is as the LBO data gateway of present terminal.
Step 203: when terminal has LBO data gateway addresses distributed, judge that then terminal has the address of routing optimality.
Judge whether terminal has described LBO data gateway addresses distributed several different methods can be arranged, such as, can judge each IP address of the PDN of the current access of terminal by network side, judge and distribute whether the data gateway of its IP address is the LBO data gateway, if judge that then terminal has the address of the routing optimality of this PDN.
Certainly, also can inquire about to the LBO data gateway whether there is IP address allocated in this UE by network side, data gateway returns the whether information of distributing IP address and concrete IP address of terminal, thereby obtains whether UE exists current visit ground IP address allocated and IP address in current LBO zone information.So far, finish the judgement terminal and have the process of the address of routing optimality.In the present embodiment, after judging that terminal has the address of routing optimality, network side can also be notified the address of the routing optimality of each PDN to terminal, and promptly execution in step 204.
Step 204: give terminal with the address notification of this routing optimality.
Can be directly have the cell of corresponding relation to the address of terminal notice routing optimality or with the address of routing optimality, such as Ti, there are the cell of corresponding relation in NSAPI etc. and IP address, and terminal can identify the IP address by these cells.
And, can utilize existing access process and message to notify terminal, such as, can utilize TAU in the SAE network TAU process to receive Attach Accept message in the RAU process of RAU Accept message, the Attach Accept message in SAE network attachment (Attach) process or GPRS/UMTS network in (Accept) message, the GPRS/UMTS network RAU process.Can certainly increase new flow process and message and notify UE, following mask body illustrates.
Fig. 3 has the method flow schematic diagram of the address of route optimum for judging terminal in the first embodiment of the invention.In the present embodiment, be in SAE network Intra-PLMNLBO scene, detect IP address by the Routing Area Update process, at last testing result is notified to UE at a certain PDN routing optimality by the travelling performance management node of network side.Present embodiment is that the situation that LBO divides is carried out in an operator inside, as shown in Figure 3, specifically may further comprise the steps:
Step 301: determine the outer data network in the LBO zone at UE place and the corresponding relation of data gateway.
In the present embodiment, with the base unit of route district as division LBO zone, cook up different LBO zones and also be the corresponding relation of corresponding data gateway of each LBO area configurations and outer data network, as shown in Figure 4, Fig. 4 is for the route district being the schematic diagram of the LBO division of unit.PLMN X carries out LBO planning to the network of inside and is deployed on the travelling performance management node of PLMN X, and the LBO planning information of formation is as shown in table 1:
| The division of route district or tracing Area | Corresponding APN and the address of P-GW |
| RA1，RA2 | (APNX1，P-GW1)，(APNX2， P-GW2)，(APNX3，P-GW3) |
| RA3，RA4，RA5，RA6 | (APNX1，P-GW1)，(APNX2， P-GW4)，(APNX3，P-GW6) |
| RA7，RA8，RA9 | (APNX1，P-GW1)，(APNX2， P-GW4)，(APNX3，P-GW5) |
Table 1
In the present embodiment, UE is determined the corresponding relation of outer data network and data gateway by this route district when inserting certain route district by the Routing Area Update process.
Step 302: the data gateway of the outer data network correspondence that terminal is inserted is as the LBO data gateway.
Step 303: network side judges whether the data gateway of distributing IP address is the LBO data gateway, if then execution in step 304, otherwise execution in step 305.
In the present embodiment, obtain to distribute the data gateway of each described IP address by the IP-CAN bearer context of each IP address of terminal, whether the data gateway of judging the distributing IP address is the LBO data gateway, if judge that then terminal has the IP address of routing optimality.The detailed process that present embodiment adopts is: the travelling performance management node is judged each IP address of the PDN of the current access of terminal, judge whether the data gateway address of preserving in its bearer context is the pre-configured address of LBO data gateway, because the data gateway address of preserving in the bearer context is the address of the data gateway of this IP address of terminal distribution when setting up for carrying, if the address of the data gateway of distributing IP address is consistent with the address of LBO data gateway, think that then this IP address is the nearest in other words IP address at the routing optimality of this PDN, if the data gateway at each IP address correspondence of this PDN is not the data gateway in this LBO zone, then think the nearest in other words address, IP address that does not have current routing optimality for this PDN.
Step 304: network side is given UE with the IP address notification of current visit ground routing optimality.
Network side utilizes the IP address of the current visit of RAU Accept message informing UE ground routing optimality, process ends.
Step 305: the current IP address that does not have routing optimality of network side notice UE.
In the present embodiment,, also use the current current visit ground IP address allocated that do not exist of complete zero address notification UE if this address does not exist.
In the present embodiment, utilization is existing in bearer context to be the data gateway address and the pre-configured address of LBO data gateway of this IP address of terminal distribution, whether the data gateway of judging the distributing IP address is the LBO data gateway, can find the IP address of routing optimality of the correspondence of this PDN in time.So far finish method flow in the first embodiment of the invention.
Fig. 5 is a method flow schematic diagram in the second embodiment of the invention.In the present embodiment, be under SAE network Inter-PLMN LBO scene, detect IP address by the Routing Area Update process, at last testing result is notified to UE at a certain PDN routing optimality by the travelling performance management node of network side.Present embodiment is to carry out the situation that LBO divides between a plurality of operators, as shown in Figure 5, specifically may further comprise the steps:
Step 501: determine the outer data network in the LBO zone at UE place and the corresponding relation of data gateway.
In the present embodiment, suppose to have a plurality of operators to participate in the division of LBO, the deployment of each operator inside as shown in Figure 6, Fig. 6 is for PLMN being the schematic diagram that the LBO of unit divides.X wherein, Y, Z have represented three PLMN operators, are that unit plans the LBO zone with PLMN, simultaneously, suppose to be signed with the LBO roaming agreement between X of operator and the Y, and be as shown in table 2:
| Outer data network title corresponding to PLMN X access | Outer data network title corresponding to PLMN Y access |
| APNX1 | APNY1 |
| APNX2 | APNY2 |
| APNX3 | APNY3 |
Table 2
Roaming agreement shown in the table 2 shows: if if the terminal A of PLMN X has inserted outer data network APNX1 at home network PLMN X, can insert local APNY1 when having roamed into PLMN Y, to realize the function of routing optimality, if otherwise the terminal B of PLMN Y inserts at home network is APNY1 when working as him and roaming into network PLMN X, just can insert the purpose of local APNX1 with the realization routing optimality.Similarly also can be signed with similar roaming agreement between PLMN X and the PLMN Z.This roaming agreement should be disposed can be on the travelling performance management node of PLMN X, PLMN Y and PLMN Z.
UE can inform current PLMN information to the travelling performance management node when inserting certain PLMN by the Routing Area Update process, can be determined the corresponding relation of outer data network and data gateway by current PLMN information.
Step 502: the data gateway of the outer data network correspondence that terminal is inserted is as the LBO data gateway.
Step 503: network side is inquired about this UE to the LBO data gateway and whether is had IP address allocated, if execution in step 504, otherwise execution in step 505.
Whether to the inquiry of LBO data gateway is terminal distribution IP address, if judge that then terminal has the IP address of routing optimality.In the present embodiment, detailed process is: at each PDN of UE access, whether there is IP address allocated in this UE to the travelling performance management node to the inquiry of LBO data gateway, if there is IP address allocated, data gateway returns the Query Result of terminal distribution IP address and the information of concrete IP address, otherwise returns the Query Result that terminal does not have the distributing IP address.
Step 504: network side is given UE with the IP address notification of current visit ground routing optimality.
Network side is by the IP address of the current visit of RAU Accept message informing UE ground routing optimality, process ends.
Information has in the present embodiment adopted the cell that can indicate corresponding to the IP address of PDN to notify UE, such as, Ti, NSAPI etc.UE by this information can the indirect identification outlet by the IP address of optimizing.
Step 505: the current IP address that does not have routing optimality of network side notice UE.
In the present embodiment,, then use the current visit ground IP address allocated that do not exist of complete zero address notification UE if this address does not exist.
The present embodiment utilization judges that in the LBO data gateway inquiry IP address that whether has been terminal distribution whether terminal has the IP address of routing optimality, can find the IP address of the routing optimality of this PDN in time.So far finish method flow in the second embodiment of the invention.
The travelling performance management entity structural representation of Fig. 7 for adopting in the embodiment of the invention, this travelling performance management entity comprises: corresponding relation determination module 710, LBO data gateway determination module 720 and judge module 730.
Particularly, corresponding relation determination module 710 is determined the outer data network in LBO zone at terminal place and the corresponding relation of data gateway, and the corresponding relation of determining is input to LBO data gateway determination module 720.
LBO data gateway determination module 720, the data gateway that is used for outer data network correspondence that terminal is inserted is input to judge module 730 as the LBO data gateway with the LBO data gateway that obtains.
This travelling performance management entity can also comprise: notification module 740.
When travelling performance management entity shown in Figure 7 was carried out the flow process of first embodiment of the invention, judge module comprised:
Carrying data gateway acquiring unit 731, being obtained by the IP-CAN bearer context of terminal is the data gateway of terminal distribution IP address.
Data gateway judging unit 732, whether the data gateway of judging each IP address of distribution that carrying data gateway acquiring unit 731 obtains is the LBO data gateway that LBO data gateway determination module 720 obtains, if, judge that then described terminal has the IP address of routing optimality, need not to give again described terminal distribution address.
When travelling performance management entity shown in Figure 7 was carried out the flow process of second embodiment of the invention, judge module also can comprise:
Carrying data gateway query unit, whether the LBO data gateway inquiry that obtains to LBO data gateway determination module 720 is terminal distribution IP address.
The Query Result receiving element, the Query Result of reception LBO data gateway when the Query Result that receives shows the IP address that exists for terminal distribution, judges that terminal has the IP address of routing optimality, need not to give described terminal distribution address again.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, the pretreated method in a kind of distribution address is characterized in that this method comprises: determine that the visit ground at terminal place inserts the corresponding relation of LBO zone inside and outside data network and data gateway; The data gateway of the outer data network correspondence that described terminal is inserted is as the LBO data gateway; Judge whether described terminal has described LBO data gateway addresses distributed, when terminal has described LBO data gateway addresses distributed, do not give described terminal distribution address.
2, method according to claim 1, it is characterized in that the LBO zone inside and outside data network at described definite terminal place and the corresponding relation of data gateway take a step forward and comprise: set in advance or obtain the outer data network suitable in each LBO zone and the corresponding relation of data gateway.
3, method according to claim 1, it is characterized in that, after judging that terminal has the address of routing optimality, described method further comprises: notify the address of described routing optimality or have the cell of corresponding relation with the address of described routing optimality to described terminal.
4, method according to claim 3, it is characterized in that, upgrade the message in TAU or the attaching process or notify the address of described routing optimality or have the cell of corresponding relation to described terminal with the address of described routing optimality by newly-increased message by existing routing area updating RAU, tracing Area.
5, according to claim 1,2,3 or 4 described methods, it is characterized in that, describedly judge whether terminal has described LBO data gateway addresses distributed and comprise: from the connection IP-CAN bearer context of the access IP network of each IP address of terminal, obtain to distribute the data gateway of each described IP address, judge and distribute whether the data gateway of described IP address is described LBO data gateway, if judge that then described terminal has described LBO data gateway addresses distributed.
6, according to claim 1,2,3 or 4 described methods, it is characterized in that, the deterministic process that described terminal has LBO data gateway addresses distributed comprises: to the inquiry of described LBO data gateway whether for described terminal distribution the IP address, if judge that then described terminal has described LBO data gateway addresses distributed.
7, a kind ofly judge that terminal has the travelling performance management entity of the address of route optimum, it is characterized in that described travelling performance management entity comprises:
The corresponding relation determination module is used for determining the outer data network in the LBO zone at terminal place and the corresponding relation of data gateway;
LBO data gateway determination module, the data gateway that is used for outer data network correspondence that described terminal is inserted is as the LBO data gateway;
Judge module is used to judge whether terminal has described LBO data gateway addresses distributed, shows in judged result, when terminal has described LBO data gateway addresses distributed, does not give described terminal distribution address.
8, travelling performance management entity according to claim 7 is characterized in that, described judge module comprises:
Carrying data gateway acquiring unit is used for the IP-CAN bearer context from terminal, obtains the data gateway into terminal distribution IP address;
The data gateway judging unit, whether the data gateway of each the IP address of distribution that is used to judge that described carrying data gateway acquiring unit obtains is the LBO data gateway that described LBO data gateway determination module is determined, if judge that then described terminal has described LBO data gateway addresses distributed.
9, travelling performance management entity according to claim 7 is characterized in that, described judge module comprises:
Carrying data gateway query unit, be used for the LBO data gateway inquiry determined to described LBO data gateway determination module whether for described terminal distribution the IP address;
The Query Result receiving element is used to receive the Query Result of described LBO data gateway, when the Query Result that receives has shown for described terminal distribution the IP address, judges that described terminal has described LBO data gateway addresses distributed.
10, travelling performance management entity according to claim 7 is characterized in that, described travelling performance management entity further comprises:
Notification module is used for notifying the address of described routing optimality or corresponding to the cell of the address of described routing optimality to described terminal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634980A (en) * | 2016-01-07 | 2016-06-01 | 北京佰才邦技术有限公司 | Data message processing method and base station |
| CN107251608A (en) * | 2014-09-22 | 2017-10-13 | 环球触控公司 | Communication for local data service is exchanged |
| WO2018148891A1 (en) * | 2017-02-15 | 2018-08-23 | 华为技术有限公司 | Data transmission method, base station, local breakout controller, gateway and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1647489A (en) * | 2002-04-08 | 2005-07-27 | 艾利森电话股份有限公司 | Method and system for enabling connections into networks with local address realms |
| CN100456718C (en) * | 2004-06-18 | 2009-01-28 | 北京航空航天大学 | Method for implementing mobile route in mobile IP network |
| JP4644033B2 (en) * | 2005-05-16 | 2011-03-02 | 株式会社エヌ・ティ・ティ・ドコモ | Access router apparatus, mobility control system, and mobility control method |
| CN1859412B (en) * | 2006-03-28 | 2012-06-20 | 华为技术有限公司 | Registrating roaming custom IP address in evolution network and service using method |
| EP2011300B1 (en) * | 2006-04-25 | 2010-12-01 | Telefonaktiebolaget LM Ericsson (publ) | Ip mobility within a communication system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107251608A (en) * | 2014-09-22 | 2017-10-13 | 环球触控公司 | Communication for local data service is exchanged |
| CN105634980A (en) * | 2016-01-07 | 2016-06-01 | 北京佰才邦技术有限公司 | Data message processing method and base station |
| CN105634980B (en) * | 2016-01-07 | 2018-10-12 | 北京佰才邦技术有限公司 | Data message processing method and base station |
| WO2018148891A1 (en) * | 2017-02-15 | 2018-08-23 | 华为技术有限公司 | Data transmission method, base station, local breakout controller, gateway and system |
| CN110268732A (en) * | 2017-02-15 | 2019-09-20 | 华为技术有限公司 | Data transmission method, base station, local break-out controller, gateway and system |
| CN110268732B (en) * | 2017-02-15 | 2020-12-18 | 华为技术有限公司 | Data transmission method, base station, local breakout controller, gateway and system |
| US11044600B2 (en) | 2017-02-15 | 2021-06-22 | Huawei Technologies Co., Ltd. | Apparatus and method for performing local breakout service on use requipment |
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