CN101909088B - Method and system for acquiring public network IP address in femtocell system - Google Patents
Method and system for acquiring public network IP address in femtocell system Download PDFInfo
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- CN101909088B CN101909088B CN200910086505.3A CN200910086505A CN101909088B CN 101909088 B CN101909088 B CN 101909088B CN 200910086505 A CN200910086505 A CN 200910086505A CN 101909088 B CN101909088 B CN 101909088B
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Abstract
The invention provides a method and system for acquiring a public network IP address in a fermtocell system. The method comprises the following steps: requesting a public network IP address from a reliable network element (NE) by a fermtocell, providing a routable public network IP address and assigning the routable public network IP to the fermtocell by the reliable NE. The invention provides a mechanism for requesting IP address by the fermtocell; the fermtocell acquires the routable public network IP address by sending the request to the reliable NE, thereby ensuring the IP address acquired H(e)NB is a routed public network address, thus normally realizing LIPA.
Description
Technical field
The present invention relates to family base station system technology, in espespecially a kind of family base station system, obtain the method and system of public network IP address.
Background technology
Home eNodeB is a kind of small-sized, lower powered base station, is deployed in the indoor place such as family and office.The Main Function of Home eNodeB provides higher service rate to user, and reduce the expense used required for high rate services, makes up the deficiency that existing distributed cellular radio communication system covers simultaneously.The advantage of Home eNodeB is economical, convenient, low-power output, plug and play etc.Home eNodeB (HNB is called in 3G system, Home NodeB), in Long Term Evolution (LTE, Long Term) system, be called home evolved node B (HeNB, Home eNodeB), can merge and be expressed as H (e) NB or HNB/HeNB.Hereinafter, Home eNodeB refers to HNB or HeNB.
Femtocell user is by Home eNodeB Access Network (H (e) NB AN, Home (e) NodeBAccess Network) be connected to core net (CN, Core Network), H (e) NB AN is made up of jointly H (e) NB and femto gateway (H (e) NB GW, Home (e) NodeB Gateway).The major function of H (e) NB GW is the fail safe of checking H (e) NB, the registration of process H (e) NB and access control, H (e) NB carried out to operation maintenance management, according to Carrier Requirements configuration and control H (e) NB, and the data etc. of responsible exchcange core net and H (e) NB.Home base station management system (H (e) MS) is main is for H (e) NB realizes configuration management function, the examining of such as positional information, for H (e) NB carries out parameter configuration, be mainly concerned with the parameter configuration of CN rank, the parameter configuration of RAN side and the parameter configuration of RF.In 3G system, home base station management system is called HMS, is called Home eNodeB evolution management system (HeMS), can merges and be expressed as H (e) MS or HMS/HeMS in Long Term Evolution LTE system.Hereinafter, home base station management system refers to HMS or HeMS.To 3G system, wireless access network and core network interface inherit macro base station and core network interface is Iu interface; To LTE system, wireless access network and core network interface inherit macro base station and core network interface is S1 interface.The physical connection of Iu mouth or S1 interface is present in H (e) NBGW, logically see, Iu Application of Interface layer protocol RANAP is (to LTE system, S1 Application of Interface layer protocol is S1-AP) may be distributed on H (e) NB or H (e) NB GW, or be distributed on H (e) NB and H (e) NB GW two network elements simultaneously.To LTE system, HeNB can be directly connected to core net, the network architecture and macro base station similar.
As shown in Figure 1, user directly can access the resource of the Internet and home network by Home eNodeB, accesses (LIPA, localIP access) function with the local IP realizing Home eNodeB.By LIPA mode, the resource occupation to mobile core network can be reduced on the one hand, and the business that user can use Internet to provide more fast, easily; On the other hand, the demand of operator's shunting business can also be met.
In UMTS system, when terminal normally accesses the external networks such as Internet, need to have been completed by service gateway support node (SGSN) and GGSN (GGSN); For LTE system, be then come by gateway (S-GW, Serving gateway) and packet data gateway (PDNGW, Packet Data Network gateway, also can referred to as P-GW).SGSN, GGSN and S-GW, P-GW are core network element.
Supporting the function of LIPA in order to realize Home eNodeB, needing existing part core net functional module to be deployed on H (e) NB.For HNB system, need by the function of GGSN even the SGSN function distributing of part on local HNB, HeNB system is then needed PDN GW even the S-GW function distributing of part on HeNB.PDN GW and GGSN as connected reference Access Point Name (APN, Access Point Name) will realize at Home eNodeB, needs a public network address to carry out route to access Internet.
Due to the equipment orientating plug and play as of Home eNodeB, its initial ip address is provided by the Network Provider initially connected, but, the IP address normally private address provided by Virtual network operator, and cannot ensure that it is the routable public network address met needed for LIPA function.If this IP address is not routable public network address, that normally cannot realize LIPA.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method obtaining public network IP address in family base station system, can ensure that H (e) NB obtains routable public network address, normally realize LIPA.
Another object of the present invention is to provide the system obtaining public network IP address in a kind of family base station system, can ensure that H (e) NB obtains routable public network address, normally realize LIPA.
For achieving the above object, technical scheme of the present invention is achieved in that
Obtain a method for public network IP address in family base station system, comprising:
Home eNodeB is to reliable network element request public network IP address;
Reliable network element distributes routable public network IP address and is handed down to Home eNodeB.
Also comprise before the method: described Home eNodeB, when initially connecting, judges that Home eNodeB supports LIPA function, and the IP address being supplied to Home eNodeB by Network Provider does not meet the requirement of LIPA function to IP.
For there is information interaction between Home eNodeB, the reliable network element of routable public network IP address can being provided in described reliable network element;
Described reliable network element is femto gateway, and/or home base station management system, and/or mobile management entity MME.
Described Home eNodeB is H (e) NB, and described reliable network element is H (e) MS;
Described Home eNodeB is specially to reliable network element request public network IP address: after described H (e) NB and security gateway set up escape way, the IP address assignment instruction represented the need of for H (e) NB distributing IP address is carried in parameter-configuring request and sends to H (e) MS;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address that described H (e) MS will distribute, is carried in parameter configuration response and passes to H (e) NB.
Described Home eNodeB is HNB, and described reliable network element is HNB GW;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in HNB registration request the need of the IP address assignment instruction for HNB distributing IP address and sends to HNB GW by described HNB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried at during HNB registration accepts and passes to HNB by described HNB GW.
Described Home eNodeB is HeNB, and described reliable network element is HeNB GW;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in S1 interface foundation request the need of the IP address assignment instruction for HeNB distributing IP address and sends to HeNB GW by described HeNB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried at S1 interface and sets up in response and pass to HeNB by described HeNB GW.
Described Home eNodeB is HeNB, and described reliable network element is MME;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in S1 interface foundation request the need of the IP address assignment instruction for HeNB distributing IP address and sends to MME by described HeNB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried at S1 interface and sets up in response and pass to HeNB by described MME.
Described Home eNodeB is HeNB, and described reliable network element is HeNB GW or MME;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in base station configuration updating request the need of the IP address assignment instruction for HeNB distributing IP address and sends to HeNB GW by described HeNB or MME;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried in base station configuration updating response and passes to HeNB or MME by described HeNB GW.
Described Home eNodeB is H (e) NB, and described reliable network element is H (e) MS; After described H (e) NB completes registration, in running,
Described Home eNodeB is specially to reliable network element request public network IP address: the IP address assignment instruction represented the need of for H (e) NB distributing IP address is carried in newly-increased message and sends to H (e) MS by described H (e) NB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address that described H (e) MS will distribute, is carried in the response of newly-increased message and passes to H (e) NB.
Obtain a system for public network IP address in family base station system, this system at least comprises Home eNodeB and reliable network element, wherein,
Home eNodeB, for sending public network IP address request to reliable network element;
Reliable network element, for providing routable public network IP address and being handed down to Home eNodeB.
For there is information interaction between Home eNodeB, the reliable network element of routable public network IP address can being provided in described reliable network element;
Described reliable network element is femto gateway, and/or home base station management system, and/or mobile management entity MME.
As can be seen from the technical scheme that the invention described above provides, the invention provides a kind of mechanism of Home eNodeB IP address requesting, Home eNodeB, by reliable network element request, obtains routable public network IP address.Ensure that the IP address that H (e) NB obtains is routable public network address, thus normally achieve LIPA.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of the family base station system with LIPA function;
Fig. 2 is the flow chart that the present invention obtains the method for public network IP address;
Fig. 3 is the composition structural representation that the present invention obtains the system of public network IP address;
Fig. 4 is the schematic flow sheet of first embodiment of the invention;
Fig. 5 is the schematic flow sheet of second embodiment of the invention;
Fig. 6 is the schematic flow sheet of third embodiment of the invention;
Fig. 7 is the schematic flow sheet of fourth embodiment of the invention;
Fig. 8 is the schematic flow sheet of fifth embodiment of the invention;
Fig. 9 is the schematic flow sheet of sixth embodiment of the invention.
Embodiment
Fig. 2 is the flow chart that the present invention obtains the method for public network IP address, as shown in Figure 2, comprising:
Step 200: Home eNodeB is to reliable network element request public network IP address.
Reliable network element, for there is information interaction between Home eNodeB, can providing the reliable network element of routable public network IP address, can be such as femto gateway, home base station management system, mobile management entity (MME) etc.
The method of request can be by register flow path, S1 connection building process, Home eNodeB config update process, Home eNodeB Parameter Configuration process and need to realize to modes such as home base station management system requests when performing LIPA function.
Step 201: reliable network element distributes routable public network IP address and is handed down to Home eNodeB.
The implementation method that reliable network element distributes routable public network IP address is a lot, such as in reliable network element, pre-set address pool, when receiving the request providing public network IP address, from address pool, select (selecting at random or according to preset strategy) IP address; Or when receiving the request providing public network IP address, to the network element request providing IP address specially.Distribute the specific implementation of routable public network IP address about reliable network element, belong to those skilled in the art's conventional techniques means, repeat no more here.
The inventive method it is emphasised that, a kind of mechanism of Home eNodeB IP address requesting is provided, to ensure that the IP address that H (e) NB obtains is routable public network address, thus normally realizes LIPA.
Can also comprise before the inventive method: Home eNodeB is when initially connecting, judge whether Home eNodeB supports LIPA function, and whether the IP address being supplied to Home eNodeB by Network Provider meets the requirement of LIPA function to IP, if do not met and Home eNodeB support LIPA, then continue to perform step 200.
Corresponding the inventive method, also provides a kind of system obtaining public network IP address, as shown in Figure 3, at least comprises Home eNodeB and reliable network element, wherein,
Home eNodeB, for sending public network IP address request to reliable network element.
Reliable network element, for providing routable public network IP address and being handed down to Home eNodeB.
Described reliable network element, for there is information interaction between Home eNodeB, can providing the reliable network element of routable public network IP address, can be such as femto gateway, home base station management system, MME etc.
Below in conjunction with several embodiment, the inventive method is described in detail.
Fig. 4 is the schematic flow sheet of first embodiment of the invention, in first embodiment, the implementation that IP address is distributed by H (e) MS in configuration (Provisioning) process to H (e) NB, H (e) MS is undertaken alternately by security gateway and H (e) NB, as shown in Figure 4, specifically comprise the steps:
Step 400:H (e) NB and security gateway set up escape way.
The parameters such as the geography information of self are notified H (e) MS by parameter-configuring request by step 401:H (e) NB, meanwhile, IP address assignment instruction is carried in parameter-configuring request and sends to H (e) MS by H (e) NB.
Wherein, IP address assignment instruction is used for representing the need of being H (e) NB distributing IP address, such as being set to 1 expression needs for H (e) NB distributing IP address, be set to 0 expression do not need for H (e) NB distributing IP address, or represented the need of IP address by the presence or absence of this cell;
Step 402:H (e) MS determines whether H (e) NB distributing IP address according to the IP address assignment instruction obtained, if judge to need distributing IP address, then H (e) MS provides a routable public network address IP for this H (e) NB, and this IP address is carried at together with Home eNodeB configuration information parameter configuration response in pass to H (e) NB.
Step 403:H (e) NB initiates to set up SCTP (SCTP) to H (e) NB GW and connects, and starts the register flow path of H (e) NB.
Fig. 5 is the schematic flow sheet of second embodiment of the invention, and the second embodiment is in the family base station system of 3G, in the process that IP address is registered at HNB, and the implementation of being distributed by HNB GW.Suppose to fail to be assigned to routable public network IP address after HNB completes initialization, as shown in Figure 5, specifically comprise the steps:
Step 500:HNB sends HNB registration request (HNB Register Request) to HNB GW, carries IP address assignment instruction in this HNB registration request.
Step 501a:HNB GW verifies the log-on message of HNB, if the verification passes and judge that HNB needs distribution IP address, then HNB GW distributing IP address, and by HNB registration acceptance (HNBRegister Accept), the routable public network IP address of distribution is passed to HNB.
Step 501b: if HNB is not by checking, HNB GW sends HNB registration reject (HNB Register Reject) message to HNB.
Fig. 6 is the schematic flow sheet of third embodiment of the invention, 3rd embodiment is in the family base station system of LTE, in the process that IP address is registered at HeNB, by the implementation that HeNB GW distributes, suppose to fail to be assigned to routable public network IP address after HeNB completes initialization, as shown in Figure 6, specifically comprise the steps:
Step 600:HeNB sends S1 interface to HeNB GW and sets up request, and this S1 interface is set up in request and carried IP address assignment instruction.
Step 601:HeNB GW, according to the IP address assignment instruction received, judges that HeNB needs distribution IP address, then HeNB GW distributing IP address, and by S1 interface foundation response, the routable public network IP address of distribution is passed to HeNB.
Fig. 7 is the schematic flow sheet of fourth embodiment of the invention, 4th embodiment is in the family base station system of LTE, when HeNB and MME is direct-connected, in the process that IP address is registered at HeNB, by the implementation that MME distributes, suppose to fail to be assigned to routable public network IP address after HeNB completes initialization, as shown in Figure 7, specifically comprise the steps:
Step 700:HeNB sends S1 interface to MME and sets up request, and this S1 interface is set up in request and carried IP address assignment instruction.
Step 701:MME, according to the IP address assignment instruction received, judges that HeNB needs distribution IP address, then MME distributing IP address, and by S1 interface foundation response, the routable public network IP address of distribution is passed to HeNB.
Fig. 8 is the schematic flow sheet of fifth embodiment of the invention, 5th embodiment is in the family base station system of LTE, when Home eNodeB is connected with femto gateway, by the implementation method of base station configuration updating process distributing IP address, as shown in Figure 8, specifically comprise the steps:
When completing S1 connection establishment between step 800:HeNB and HeNB GW, HeNB does not support LIPA function.
Step 801: after the LIPA function of HeNB is opened, HeNB sends base station configuration updating request to HeNB GW, and IP address assignment instruction is carried in base station configuration updating request and sends to HeNBGW.
Step 802:HeNB GW, according to the IP address assignment instruction received, judges that HeNB needs distribution IP address, then HeNB GW distributing IP address, and by base station configuration updating response, the routable public network IP address of distribution is passed to HeNB.
In addition, in the family base station system of 3G, just open the situation of LIPA function when completing registration for HNB, the HNB registration process (as shown in Figure 5) in can implementing by again initiating second obtains IP address.
For the scene that HeNB with MME shown in Fig. 7 is connected, the situation of LIPA function is just opened after HeNB completes registration, can be completed the acquisition of IP address alternately by base station configuration updating requests/response messages, the core network element being now responsible for IP address assignment is MME.
Fig. 9 is the schematic flow sheet of sixth embodiment of the invention, 6th embodiment is after H (e) NB completes registration, in running, and the implementation obtaining IP address from H (e) MS owing to needing to perform LIPA function, as shown in Figure 9, specifically comprise the steps:
Step 900:H (e) NB sends to H (e) MS and obtains IP Address requests, notice H (e) MS, and H (e) NB initiating request needs to distribute routable public network IP address.
Step 901:H (e) MS is H (e) NB distributing IP address, and returns to H (e) NB by obtaining IP address response.
Wherein, obtain IP Address requests and obtain IP address response for newly-increased message, for realizing the distribution of IP address.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. obtain a method for public network IP address in family base station system, it is characterized in that, comprising:
Home eNodeB is to reliable network element request public network IP address;
Reliable network element distributes routable public network IP address and is handed down to Home eNodeB;
The mode that described Home eNodeB carries out asking to reliable network element to reliable network element request public network IP address by register flow path, S1 interface connection building process, Home eNodeB config update process, Home eNodeB Parameter Configuration process or when needing to perform local IP access LIPA function realizes.
2. method according to claim 1, it is characterized in that, also comprise before the method: described Home eNodeB is when initially connecting, judge that Home eNodeB supports that local IP accesses LIPA function, and the IP address being supplied to Home eNodeB by Network Provider does not meet the requirement of LIPA function to IP.
3. method according to claim 1 and 2, is characterized in that, described reliable network element is for existing information interaction, can providing the reliable network element of routable public network IP address between Home eNodeB;
Described reliable network element is femto gateway, and/or home base station management system, and/or mobile management entity MME.
4. method according to claim 1 and 2, it is characterized in that, described Home eNodeB is the Home eNodeB HNB in 3G system or the home evolved node B HeNB in Long Term Evolution LTE system, and described reliable network element is the home base station management system HMS in 3G system or the Home eNodeB evolution management system HeMS in LTE system;
Described Home eNodeB is specially to reliable network element request public network IP address: after described HNB and security gateway set up escape way, expression is carried in parameter-configuring request the need of the IP address assignment instruction for HNB distributing IP address and sends to HMS; Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address that described HMS will distribute, is carried in parameter configuration response and passes to HNB; Or,
Described Home eNodeB is specially to reliable network element request public network IP address: after described HeNB and security gateway set up escape way, expression is carried in parameter-configuring request the need of the IP address assignment instruction for HeNB distributing IP address and sends to HeMS; Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address that described HeMS will distribute, is carried in parameter configuration response and passes to HeNB.
5. method according to claim 1 and 2, is characterized in that, described Home eNodeB is the Home eNodeB HNB in 3G system, and described reliable network element is the femto gateway HNB GW in 3G system;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in HNB registration request the need of the IP address assignment instruction for HNB distributing IP address and sends to HNB GW by described HNB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried at during HNB registration accepts and passes to HNB by described HNB GW.
6. method according to claim 1 and 2, is characterized in that, described Home eNodeB is the home evolved node B HeNB in Long Term Evolution LTE system, and described reliable network element is the home evolved node B gateway HeNB GW in LTE system;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in S1 interface foundation request the need of the IP address assignment instruction for HeNB distributing IP address and sends to HeNB GW by described HeNB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried at S1 interface and sets up in response and pass to HeNB by described HeNB GW.
7. method according to claim 1 and 2, is characterized in that, described Home eNodeB is the home evolved node B HeNB in Long Term Evolution LTE system, and described reliable network element is the mobile management entity MME in LTE system;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in S1 interface foundation request the need of the IP address assignment instruction for HeNB distributing IP address and sends to MME by described HeNB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried at S1 interface and sets up in response and pass to HeNB by described MME.
8. method according to claim 1 and 2, is characterized in that, described Home eNodeB is the home evolved node B HeNB in Long Term Evolution LTE system, and described reliable network element is home evolved node B gateway HeNB GW in LTE system or mobile management entity MME;
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in base station configuration updating request the need of the IP address assignment instruction for HeNB distributing IP address and sends to HeNB GW or MME by described HeNB;
Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address of distribution is carried in base station configuration updating response and passes to HeNB by described HeNB GW or MME.
9. method according to claim 1 and 2, it is characterized in that, described Home eNodeB is the Home eNodeB HNB in 3G system or the home evolved node B HeNB in Long Term Evolution LTE system, and described reliable network element is the home base station management system HMS in 3G system or the Home eNodeB evolution management system HeMS in LTE system; After described HNB or HeNB completes registration, in running,
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in newly-increased message the need of the IP address assignment instruction for HNB distributing IP address and sends to HMS by described HNB; Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address that described HMS will distribute, is carried in the response of newly-increased message and passes to HNB; Or,
Described Home eNodeB is specially to reliable network element request public network IP address: expression is carried in newly-increased message the need of the IP address assignment instruction for HeNB distributing IP address and sends to HeMS by described HeNB; Describedly public network IP address is handed down to Home eNodeB is specially: the routable public network IP address that described HeMS will distribute, is carried in the response of newly-increased message and passes to HeNB.
10. obtain a system for public network IP address in family base station system, it is characterized in that, this system at least comprises Home eNodeB and reliable network element, wherein,
Home eNodeB, for sending public network IP address request to reliable network element;
Reliable network element, for providing routable public network IP address and being handed down to Home eNodeB;
Described Home eNodeB to perform when local IP accesses LIPA function at register flow path, S1 interface connection building process, Home eNodeB config update process, Home eNodeB Parameter Configuration process or need to reliable network element request public network IP address and carries out running in the process of asking to reliable network element.
11. systems according to claim 10, is characterized in that, described reliable network element is for existing information interaction, can providing the reliable network element of routable public network IP address between Home eNodeB;
Described reliable network element is femto gateway, and/or home base station management system, and/or mobile management entity MME.
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| US8860775B2 (en) | 2009-04-14 | 2014-10-14 | Huawei Device Co., Ltd. | Remote presenting system, device, and method |
| CN102082837A (en) * | 2010-12-31 | 2011-06-01 | 华为技术有限公司 | Method and device for distributing public network address for IP (Internet protocol) terminal |
| WO2012162996A1 (en) * | 2011-09-30 | 2012-12-06 | 华为技术有限公司 | Ip address obtaining method and network access device |
| BR112014028681A2 (en) * | 2012-05-23 | 2017-06-27 | Nec Corp | network interconnect device, communication system, method for controlling network interconnect device and computer readable media for the same |
| CN103533095B (en) * | 2013-09-30 | 2016-08-17 | 昭文科技（北京）股份有限公司 | The method and device of network interworking |
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| CN101146068A (en) * | 2005-04-25 | 2008-03-19 | 华为技术有限公司 | Private network user and system and method for network intercommunication with QoS network |
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| CA2685841C (en) * | 2007-04-30 | 2013-06-11 | Interdigital Technology Corporation | A home (e)node-b with new functionality |
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| CN101146068A (en) * | 2005-04-25 | 2008-03-19 | 华为技术有限公司 | Private network user and system and method for network intercommunication with QoS network |
| CN101132629A (en) * | 2006-08-25 | 2008-02-27 | 华为技术有限公司 | Method and system for discovering entrance of call control system |
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