CN101998578B

CN101998578B - Implementation method and system for network share of home node B

Info

Publication number: CN101998578B
Application number: CN200910090958.3A
Authority: CN
Inventors: 王昇明; 奚进
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2009-08-17
Filing date: 2009-08-17
Publication date: 2015-05-20
Anticipated expiration: 2029-08-17
Also published as: CN101998578A

Abstract

The invention discloses an implementation method and system for network share of a home node B, which comprises the following steps: a home node B (HNB)/home evolved node B (HeNB) transmits a logon request message/S1 establishing request message carrying network share information to a home node B gateway (HNB GW)/home evolved node B gateway (HeNB GW); the HNB GW/HeNB GW judges logon success of the HNB/HeNB according to the information carried by the logon request message/S1 establishing request message, and then transmits a logon receiving message/S1 establishing response message to the HNB/HeNB; and then the HNB/HeNB carries out system message broadcasting. Accordingly, the invention also discloses an implementation system for network share of the HNB. By the invention, a user can select and access the network, and can access different networks through the HNB, thereby realizing network share of the HNB, saving the cost and improving the user experience.

Description

Method and system for realizing network sharing of home base station

Technical Field

The invention relates to the field of home base stations (HNB), in particular to a method and a system for realizing network sharing of the HNB.

Background

The home base station is a small-sized and low-power base station, is deployed in indoor places such as homes, offices and the like, and mainly has the functions of providing higher service rate for users, reducing the cost required by using high-rate services and making up for the defects of coverage of the existing distributed cellular wireless communication system. The home base station has the advantages of practicability, convenience, low power output, plug and play and the like.

Fig. 1 is a schematic structural diagram of a conventional HNB system, and as shown in fig. 1, the conventional HNB system generally includes: 3G HNB, IP network, security gateway (SeGW), home base station management system (HMS), home base station gateway (HNB GW) and Core Network (CN). Fig. 2 is a schematic structural diagram of a conventional evolved home base station (HeNB) system, and as shown in fig. 2, the conventional HeNB system generally includes: henbs, segws, evolved home base station gateways (HeNB GWs), evolved home base station management systems (HeMS), and EPCs. The HNB system is similar to the HeNB system in function of each component, and the HeNB system is described below as an example.

The home base station user is connected to a core network through AN evolved home base station access network (home) (e) NodeB access network (HeNB AN), wherein the HeNB AN is composed of a HeNB and a HeNB GW together. The main executed functions of the HeNB GW are: and the security of the home base station is verified, the registration and access control of the home base station are processed, and the data of the core network and the home base station are exchanged. The HeMS system is a home base station management system, performs operation maintenance management on a home base station, configures and controls the home base station according to the requirements of an operator, and mainly implements a configuration management function of the HeNB, including verification of location information, parameter configuration for the HeNB (mainly involving CN level parameter configuration), parameter configuration at a Radio Access Network (RAN) side, and parameter configuration of Radio Frequency (RF). For the HeNB system, the HeNB may be directly connected to a Mobile Management Entity (MME) without passing through the HeNB GW.

The whole process from powering on the home base station to serving the user is roughly described as follows: after the femtocell is powered on, scanning surrounding neighboring cells, and providing the acquired neighboring cell information and possible information such as Global Navigation Satellite System (GNSS) address and broadband address of the femtocell to a femtocell management system; the home base station management system performs identity verification according to the information provided by the home base station, and allocates available resources for the home base station after authentication; after completing the resource configuration, the home base station executes a registration process to the home base station gateway and notifies the home base station gateway of the information of the home base station gateway; the home base station gateway retains the registration information of the home base station and verifies the information provided by the home base station. In the HNB system, the registration of the home base station is done by dedicated home base station application part (HNBAP) information, whereas in the HeNB system it is possible to do this by multiplexing S1 messages.

After the registration of the femtocell is completed, the femtocell broadcasts the system message according to the configuration information as a normal base station. For the UE needing to be accessed, the UE firstly selects a Public Land Mobile Network (PLMN) and then judges whether to initiate random access according to the system broadcast message. In addition to the conventional information (such as cell Bar information) judgment, the UE access concept introduced for the home base station includes a closed subscriber group List (Allowed CSG List) Allowed to be accessed, a judgment of the home base station access mode, and the like. The Allowed CSG list is an information list of all CSGs subscribed to by the UE, and is stored in the network side and the UE, respectively. The access modes of the CSG cell are divided into three modes, namely a Close access mode, a Hybrid access mode and an Open access mode, and the CSG cell with the Close access mode allows the UE to access only if the CSG cell with the Close access mode is contained in an Allowed CSG list of the UE; for a CSG cell with a Hybrid access mode, both subscribed and non-subscribed UEs may access, but when the service is different, for example, when air interface resources are in short supply, the CSG cell may cut out or release a non-subscribed user from the cell; and the method is not different between the cell in the Open access mode and the common macro cell.

The introduction of the CSG concept is to perform group management on users, and the definition of the CSG is limited to be valid in one PLMN, that is, in different PLMNs, the user groups represented by the CSGs having the same CSG ID are different. For the HNB system, if the UE or HNB does not support CSG, the access control of the UE is completed in HNB GW; if the UE and the HNB support the CSG at the same time, the access control of the UE is finished at the CN. For the HeNB system, since the UE and the HeNB both support CSG, the access control of the UE is completed at the CN. In addition, different PLMNs store subscription data differently, and an access-Allowed international mobile subscriber identity List (Allowed IMSI List) is a List of the IMSIs of UEs stored in the HNB GW and a List of the IMSIs of UEs subscribed to a specific HNB. When HNB GW carries out access control to UE, the UE is judged according to Allowed IMSI List of HNB, and if the IMSI of UE is in the allowedIMSI List of HNB, the HNB GW allows the UE to access.

The existing femtocell is a femtocell system under one PLMN, and if a user wishes to access multiple networks, the user needs to access different femtocell systems respectively, so that cost saving is not facilitated, inconvenience is brought to the user to a certain extent, and user experience is not facilitated. For example, in a home, operators to which mobile phones used by different family members belong may be different, and if network sharing is not used, a user who does not belong to an operator managed by the femtocell cannot access the network through the femtocell, and cannot obtain services provided by the femtocell.

With the development of the technology, network co-establishment and sharing are a great development trend, and wireless master equipment can be effectively utilized, but because the home base station is different from a common macro base station in the processes of base station registration, UE registration and the like, and the concept of CSG is introduced into the home base station, the network sharing of the home base station is different from the network sharing of the common macro base station, and the network sharing of the home base station cannot be realized by a network sharing method of the common macro base station.

Disclosure of Invention

In view of this, the main objective of the present invention is to provide a method and a system for implementing network sharing of a home base station, which can implement network sharing of the home base station, thereby saving cost and improving user experience.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a method for realizing network sharing of a home base station comprises the following steps:

a home base station HNB/an evolved home base station HeNB sends a registration request message/S1 establishment request message carrying network sharing information to a home base station gateway HNB GW/the evolved home base station gateway HeNB GW;

and the HNB GW/HeNB GW judges that the HNB/HeNB is successfully registered according to the information carried by the registration request message/S1 establishment request message, sends a registration receiving message/S1 establishment response message to the HNB/HeNB, and then the HNB/HeNB broadcasts the system message.

Before HNB/HeNB sends registration request message/S1 establishment request message carrying network sharing information to HNB GW/HeNB GW, the method further includes the steps of:

after the HNB/HeNB is powered on, a secure connection is established between the HNB/HeNB and a security gateway, and the position information of the HNB/HeNB is sent to a home base station management system (HMS/HeMS);

and after receiving the position information provided by the HNB/HeNB, the HMS/HeMS sends the related network sharing information to the HNB/HeNB.

The network sharing information carries: the HNB/HeNB can share a public land mobile network PLMN identification list, closed subscriber group CSG information under each PLMN, and international mobile subscriber identity IMSI list information of UE signed with the HNB/HeNB under each PLMN.

The HNB GW/HeNB GW judges that HNB/HeNB registration is successful as follows: the HNB GW/HeNBGW supports at least one PLMN in a list of PLMN identifications that the HNB/HeNB can share.

The registration receiving message/S1 establishment response message carries at least: and the HNB GW/HeNB GW supports the list of PLMN identifications in the list of PLMN identifications shared by the HNB/HeNB.

The system message includes CSG information supporting network sharing.

After the HNB/HeNB broadcasts the system message, the method further includes:

UE initiates random access, and after finishing the random access, sends the selected PLMN to HNB, and the HNB sends a UE registration request to HNB GW;

the HNB GW judges that the UE is successfully registered, and then the HNB GW sends a UE registration receiving message to the HNB;

after receiving the registration receiving message of the UE, the HNB sends the PLMN information selected by the UE to HNBGW;

HNB GW transmits initial UE message to core network CN, and CN completes UE access control.

Or,

after the UE finishes random access, the selected PLMN is sent to the HeNB;

the HeNB sends the PLMN information selected by the UE to a HeNB GW;

the HeNB GW forwards the initial UE message to a mobile management entity MME selected by the HeNB GW;

and the MME completes the access control of the UE according to the information provided in the initial UE message.

A system for realizing network sharing of a home base station comprises: HNB/HeNB, HNB GW/HeNB, wherein, HNB/HeNB includes request message sending unit, response message receiving unit and broadcasting unit, HNB GW/HeNB GW includes request message receiving unit, judging unit, response message sending unit,

the request message sending unit is used for sending a registration request message/S1 establishment request message carrying network sharing information to HNB GW/HeNB GW;

the request message receiving unit is used for receiving a registration request message/S1 establishment request message carrying network sharing information from HNB/HeNB and informing the judging unit;

the judging unit is used for establishing a request message according to the registration request message/S1 carrying the network sharing information, judging whether the registration of the HNB/HeNB is successful or not, and informing the response message sending unit when the registration is successful;

the response message sending unit is used for sending a registration receiving message/S1 establishment response message to the HNB/HeNB according to the notification of the judging unit;

the response message receiving unit is used for receiving a registration receiving message/S1 establishment response message from HNB GW/HeNB GW and informing the broadcast unit;

and the broadcasting unit is used for broadcasting the system message.

The system also includes an HMS/HeMS,

the HNB/HeNB also comprises a position information sending unit and is used for sending the position information of the HNB/HeNB to the HMS/HeMS after being electrified;

the HMS/HeMS is used for sending the related network sharing information to the HNB/HeNB after receiving the position information provided by the HNB/HeNB;

the request message sending unit is further configured to send a registration request message/S1 setup request message to the HNB GW/HeNB GW according to the network sharing information from the HMS/HeMS.

The invention relates to a method and a system for realizing network sharing of a home base station, wherein the concept of multiple PLMNs supporting network sharing is introduced into the processing flow of the home base station system, and different access control information is provided for different PLMNs.

Drawings

Fig. 1 is a schematic structural diagram of a conventional HNB system;

fig. 2 is a schematic diagram of a conventional HeNB system structure;

fig. 3 is a connection topology diagram of a home base station gateway and a core network;

fig. 4 is another connection topology diagram of a home base station gateway and a core network;

FIG. 5 is a flow chart of a method for implementing network sharing of a home base station according to the present invention;

FIG. 6 is a schematic diagram of a system for implementing network sharing of home base stations according to the present invention;

fig. 7 is a schematic view of a UE access flow under an HNB in embodiment 1 of the present invention;

fig. 8 is a schematic diagram of a UE access procedure under the HeNB in embodiment 2 of the present invention.

Detailed Description

The basic idea of the invention is: the concept of multiple PLMNs supporting network sharing is introduced into the processing flow of the home base station system, and different access control information is provided for different PLMNs.

The following describes the embodiments in further detail with reference to the accompanying drawings.

Fig. 3 is a connection topology diagram of a home base station gateway and a core network, and as shown in fig. 3, the home base station gateway is connected with a network element of the core network. The core network element supports network sharing, and in the HeNB system, may be an MME supporting multiple PLMNs, and in the HNB system, the network element may be a mobile services switching center (MSC) or a Serving GPRS Support Node (SGSN) supporting multiple PLMNs.

Fig. 4 is another connection topology diagram of the hnb gateway and the core network, as shown in fig. 4, the hnb gateway may be directly connected to network elements of different operator core networks.

Of course, the two topologies shown in fig. 3 and 4 may also exist simultaneously, and the PLMN supported by the home base station gateway is the set of PLMNs supported by all networks connected to the PLMN.

Fig. 5 is a schematic flow chart of a method for implementing home base station network sharing according to the present invention, and as shown in fig. 5, the method for implementing home base station network sharing generally includes the following steps:

step 51: after the HNB/HeNB is powered on, the safety connection is established between the HNB/HeNB and the safety gateway, and the position information of the HNB/HeNB is sent to the HMS/HeMS.

Step 52: and after receiving the position information provided by the HNB/HeNB, the HMS/HeMS sends the related network sharing information to the HNB/HeNB.

Here, the network sharing information generally carries: the HNB/HeNB can share a list of PLMN identifications, CSG information under each PLMN, IMSI list information of UE under each PLMN and subscribed with the HNB/HeNB and the like, wherein the CSG information under each PLMN and the IMSI list information of the UE under each PLMN and subscribed with the HNB/HeNB are selectable items.

Step 53: HNB/HeNB sends registration request message/S1 establishment request message carrying network sharing information to HNB GW/HeNB GW.

Here, the registration request message/S1 setup request message also typically carries parameters such as cell ID, location area code, etc.

Step 54: HNB GW/HeNB GW establishes the information carried by the request message according to the registration request message/S1, judges whether HNB/HeNB is successfully registered, if so, executes step 55; otherwise, step 57 is performed.

After receiving registration request message/S1 establishment request message of HNB/HeNB, HNB GW/HeNB GW checks PLMN list supported by itself under condition that parameters such as cell ID, location area code and the like pass verification, and if HNB GW/HeNB GW does not support all PLMNs in the list of PLMN identifications shared by HNB/HeNB, HNB/HeNB registration is considered unsuccessful; and if HNBGW/HeNB GW supports at least one PLMN in the list of PLMN identifications that the HNB/HeNB can share, the HNB/HeNB registration is considered to be successful.

Step 55: the HNB GW/HeNB GW sends a registration receiving message/S1 establishment response message to the HNB/HeNB.

The registration receiving message/S1 establishes a list of PLMN identities supported by the HNB GW/HeNB GW in the list of PLMN identities that the HNB/HeNB can share, and the like, which is carried by the response message.

Step 56: and the HNB/HeNB broadcasts the system message and the process is finished.

Here, the broadcasted system message generally includes CSG information supporting network sharing, wherein the CSG information is for different PLMNs. Different PLMNs may correspond to different CSGs, or may share the same CSG.

And 57: HNB GW/HeNB GW sends registration failure message to HNB/HeNB, and the process is finished.

After HNB/HeNB broadcasts system message, UE can initiate random access, and after finishing random access, the selected PLMN is sent to HNB, and HNB sends UE registration request to HNB GW; if HNB GW judges UE registration success, HNB GW sends UE registration receiving information to HNB, and UE is distributed with Context ID as signaling connection; after receiving the registration receiving Message of the UE, the HNB sends the PLMN information selected by the UE to the HNB GW through an Initial UE Message; then HNB GW transmits initial UE message to CN, if UE access control is done in CN, then according to UE relative to said initial UE message PLMN corresponding Allowed CSG List to make access control.

Or,

after random access is finished, UE sends the PLMN selected by the UE to HeNB, and the HeNB sends the PLMN information selected by the UE to HeNB GW through an Initial UE Message; and after the HeNB BGW forwards the initial UE message to the selected MME, the MME completes the access control of the UE according to the PLMN information selected by the UE and the Allowed CSG List of the UE under the PLMN, wherein the PLMN information is provided in the initial UE message.

In addition, it should be noted that, for the paging procedure of the UE, the paging optimization CN may deliver the Allowed CSG List of the UE to the home base station, and for the case of supporting network sharing, when delivering the Allowed CSG List, the CN should also carry information of which PLMN the Allowed CSG List belongs to. When the femtocell gateway performs paging optimization, the paging optimization is performed according to the PLMN supported by the femtocell and the CSG information under the PLMN, and the CSG information under different PLMNs of the UE, which are provided when the femtocell is registered (established at S1).

For the case that the HeNB and the MME are directly connected, the difference from the network sharing of the common eNB is that the HeNB provides the CSG information under each PLMN to the MME, and broadcasts the CSG information under each PLMN during air interface broadcasting.

Fig. 6 is a schematic structural diagram of an implementation system for home base station network sharing according to the present invention, and as shown in fig. 6, the implementation system for home base station network sharing according to the present invention includes: HNB/HeNB 61, HNB GW/HeNB GW62, wherein HNB/HeNB 61 includes request message transmitting unit 611, response message receiving unit 612, and broadcasting unit 613, HNB GW/HeNB GW62 includes request message receiving unit 621, judging unit 622, response message transmitting unit 623,

a request message sending unit 611, configured to send a registration request message/S1 establishment request message carrying network sharing information to HNB GW/HeNB GW 62;

a request message receiving unit 621, configured to receive a registration request message/S1 establishment request message carrying network sharing information from the HNB/HeNB 61, and notify the determining unit 622;

a determining unit 622, configured to determine whether registration of the HNB/HeNB is successful according to the registration request message/S1 establishment request message carrying the network sharing information, and notify the response message sending unit 623 when registration is successful;

a response message sending unit 623 element for sending a registration receiving message/S1 setup response message to the HNB/HeNB 61 according to the notification of the determination unit 622;

a response message receiving unit 612, configured to receive a registration receiving message/S1 setup response message from HNB GW/HeNB GW62, and notify broadcast unit 613;

a broadcasting unit 613, configured to perform system message broadcasting.

The system also includes an HMS/HeMS 63,

the HNB/HeNB 61 further includes a location information sending unit 614, and is further configured to send the location information of itself to the HMS/HeMS 63 after being powered on;

the HMS/HeMS 63 is used for sending the related network sharing information to the HNB/HeNB 61 after receiving the position information provided by the HNB/HeNB 61;

the request message sending unit 611 is further configured to send a registration request message/S1 setup request message to the HNB GW/HeNB GW62 according to the network sharing information from the HMS/HeMS 63.

Example 1:

the present embodiment describes the entire operation flow of powering on the HNB supporting network sharing and the access flow of the UE. As shown in fig. 3. The procedure of this embodiment is a complete UE access procedure, and for a general UE access procedure, it is assumed that the HNB is powered on, but this procedure is only an assumption of UE access, and is not a procedure that may be used for each UE access.

Fig. 7 is a schematic view of an access flow of UE under HNB in embodiment 1 of the present invention, and as shown in fig. 7, the access flow of UE under HNB in embodiment 1 of the present invention generally includes:

step 701: after the HNB is electrified, a safety connection is established between the HNB and the safety gateway.

Step 702: the HNB provides the neighbor cell information, GNSS address, broadband address and other information scanned by the HNB to the HMS of the Home PLMN to which the HNB belongs, namely the HMS registered by the HNB.

Here, the HMS may be an initial HMS stored in the HNB under subscription, or an HMS to which the initial HMS is relocated. The HMS stores information of a shared network subscribed to the HNB, that is, a list of supported PLMN identifiers, CSG information under each PLMN, IMSI list information of UEs subscribed to the HNB under each PLMN, and the like, where the CSG information under each PLMN and the IMSI list information of UEs subscribed to the HNB under each PLMN are selectable items.

Step 703: and the HMS configures parameters for the HNB according to the information provided by the HNB.

Here, the parameters configured by the HMS for the HNB generally include: RAN-side parameters, RF parameters and core network-side parameters. In order to implement network sharing, the core network parameters configured by the HMS for the HNB should include: a list of PLMN identities supported by the HNB, and subscription information under each PLMN, that is, information of the CSG supported by the HNB under each PLMN (for example, whether or not the CSG is supported, a CSG ID in the case of supporting the CSG, and the like). Since the subscription information of the UE under different PLMNs is also different, the subscription information may further include Allowed IMSI List information of the HNB under each PLMN.

Step 704: when HNB registers to HNB GW, all PLMN information supported by HNB is transmitted to HNB GW by sending registration request message.

It should be noted that, if there is CSG information under the PLMN, the CSG information is simultaneously transmitted to the HNB GW, where the registration request message generally also carries parameters such as a cell ID and a location area code.

Step 705: after receiving the registration request of the HNB, the HNB GW returns a registration response to the HNB.

Specifically, after receiving the registration request of the HNB, the HNB GW checks the list of PLMN identifiers supported by itself, and if the HNB GW does not support all PLMNs in the list of PLMN identifiers provided by the HNB, it may consider that the HNB registration is unsuccessful.

To implement network sharing, the HNB GW should be directly connectable to networks of different operators or connectable to a core network supporting network sharing, and then the HNB GW should have multiple PLMNs of different networks accessible through it. The HNB GW verifies the parameters in the HNB registration request and if other parameters (e.g. cell ID, location area code mentioned in step 704) verify and at least support a certain PLMN provided by the HNB, the registration is successful. And if the registration is successful, sending a registration receiving message to the HNB, and providing the list information of the PLMN identifications supported by both the HNB and the HNB to the HNB.

And after the HNB successfully registers, broadcasting the system message at an air interface. When the CSG is supported, the system broadcast includes information (e.g., CSG ID) of the CSG in each PLMN.

Step 706: and after the UE completes the random access, the selected PLMN is sent to the HNB by the UE.

Step 707: HNB sends UE registration request to HNB GW.

After receiving the registration request of the UE, the HNB GW judges whether the HNB supports the CSG according to the information provided during HNB registration, and judges whether the access control is carried out on the UE in the HNB GW by combining the call type in the registration request of the UE and the capability of the UE. Under the condition that HNB or UE do not support CSG, UE of non-emergency call performs access control on HNB GW. If the HNB GW performs access control on the UE, the UE should be executed by using the Allowed IMSI LIST corresponding to the PLMN selected by the UE, if the IMSI of the UE is in the LIST, the UE registration is accepted, otherwise, the registration of the UE is rejected; for the UE of the emergency call, no access control is needed. In addition, for the case that the HNB and the UE simultaneously support the CSG, the access control is finished at the CN.

Step 708: if HNB GW judges UE registration success, HNB GW sends UE registration receiving information to HNB, and UE is distributed with Context ID as signaling connection; if HNB GW judges UE register failure, HNB GW sends UE register rejection message to HNB, UE access flow is finished.

Step 709: after receiving the registration receiving Message of the UE, the HNB sends the PLMN information selected by the UE to the HNB GW through an Initial UE Message.

Step 710: HNB GW transmits initial UE message to CN, if UE access control is done at CN, then according to UE relative to said initial UE message PLMN corresponding Allowed CSG List access control.

Example 2:

in this embodiment, a whole operation flow of the HeNB power-on and an access flow of the UE, where the HeNB GW is deployed and network sharing is supported, are described. As shown in fig. 4, the procedure of this embodiment is a complete UE access procedure, and for a general UE access procedure, it is assumed that the HeNB is powered on, and the procedure is only an assumption of UE access, and is not a procedure that may be used for each UE access.

Fig. 8 is a schematic diagram of a UE access procedure under a HeNB in embodiment 2 of the present invention, and as shown in fig. 8, the UE access procedure under the HeNB in embodiment 2 of the present invention generally includes:

step 801: and after the HeNB is powered on, the secure connection is established between the HeNB and the security gateway.

Step 802: the HeNB provides the neighbor cell information, the GNSS address and the broadband address information scanned by the HeNB to the HeMS of the Home PLMN to which the HeNB belongs, namely the HeMS registered by the HeNB.

The HeMS may be an initial HeMS stored in a subscription of the HeNB, or a HeMS to which the initial HeMS is relocated, and the HeMS stores information of a shared network subscribed by the HeNB, that is, information of a supported PLMN and CSG information under different PLMNs.

Step 803: the HeMS configures parameters for the HeNB according to the information provided by the HeNB.

In the case of supporting network sharing, in the procedure, the HeMS transfers a list of PLMN identities supported by the HeNB, and other information under each PLMN, including information of CSGs supported by the HeNB under the PLMN, to the HeNB.

Step 804: the HeNB sends an S1 establishment request message to the HeNB GW and provides all PLMN information supported by the HeNB GW.

It should be noted that, if there is CSG information under PLMN, the CSG information is simultaneously transferred to HNB GW,

here, the S1 setup request message also typically carries parameters such as cell ID, location area code, etc.

Step 805: and after receiving the S1 establishment request message sent by the HeNB, the HeNB GW returns an S1 establishment response message to the HNB.

Specifically, the HeNB GW checks a list of PLMN identities supported by the HeNB itself, and if the HeNB GW does not support all PLMNs in the list of PLMN identities provided by the HeNB, the HeNB GW considers that HeNB registration is unsuccessful, and the HeNB GW sends an S1 setup failure message to the HeNB. The HeNB GW verifies the parameters in the HeNB S1 setup request, and if other parameters (e.g. cell ID, location area code mentioned in step 804) verify and at least support a certain PLMN provided by the HeNB, the registration is successful. And if the registration is successful, sending an S1 establishment response message to the HeNB, and providing the self-supported PLMN information to the HeNB.

And after the registration is successful, the HeNB broadcasts the system message at an air interface. And broadcasts information (e.g., CSG ID) of the CSG under each PLMN in a system broadcast.

Step 806: and after the random access is finished, the UE sends the PLMN selected by the UE to the HeNB.

Step 807: and the HeNB sends the PLMN information selected by the UE to the HeNB GW through an Initial UE Message.

Step 808: the HeNB GW forwards the initial UE message to the MME selected by the HeNB GW.

Step 809: and the MME completes the access control of the UE according to the PLMN information selected by the UE and the Allowed CSG List of the UE under the PLMN, which are provided in the initial UE message.

Then, the access procedure of the UE is completed as the existing UE access procedure.

The above embodiment lists that the access control of the UE in normal access is different between the network sharing and the common network topology, and in the handover process, if the target hnb also supports network sharing, the access control of the UE is performed, and the access control determination should also perform access control according to the access control list corresponding to the PLMN provided by the source base station.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for realizing network sharing of a home base station is characterized by comprising the following steps:

a home base station HNB/an evolved home base station HeNB sends a registration request message/S1 establishment request message carrying network sharing information to a home base station gateway HNB GW/the evolved home base station gateway HeNB GW; the network sharing information carries: a list of public land mobile network PLMN identities that HNB/HeNB can share;

the HNB GW/HeNB GW judges that the HNB/HeNB is successfully registered according to the information carried by the registration request message/S1 establishment request message, and then sends a registration receiving message/S1 establishment response message to the HNB/HeNB, and the HNB/HeNB broadcasts the system message; the registration receive message/S1 establishes a response message carrying: and the HNB GW/HeNB GW supports the list of PLMN identifications in the list of PLMN identifications shared by the HNB/HeNB.

2. The method for implementing network sharing of home base station according to claim 1, wherein before the HNB/HeNB sending the registration request message/S1 establishment request message carrying the network sharing information to the HNB GW/HeNB GW, further comprising the steps of:

3. The method for implementing home base station network sharing according to claim 1 or 2, wherein the network sharing information further carries: CSG information of closed subscriber group under each PLMN, IMSI list information of UE signed with HNB/HeNB under each PLMN.

4. The method of claim 3, wherein the HNB GW/HeNB GW determines that HNB/HeNB registration is successful as follows: the HNB GW/HeNB GW supports at least one PLMN in a list of PLMN identities that the HNB/HeNB can share.

5. The method for implementing femtocell network sharing according to claim 1, wherein the system message includes CSG information supporting network sharing.

6. The method for implementing femtocell network sharing according to claim 1, wherein after the HNB/HeNB broadcasts the system message, the method further comprises:

HNB GW transmits initial UE message to core network CN, CN completes UE access control,

or,

after the UE finishes random access, the selected PLMN is sent to the HeNB;

the HeNB sends the PLMN information selected by the UE to a HeNB GW;

7. A system for realizing network sharing of a home base station is characterized by comprising: HNB/HeNB, HNB GW/HeNB GW, wherein, HNB/HeNB includes request message sending unit, response message receiving unit and broadcast unit, HNB GW/HeNB GW includes request message receiving unit, judging unit, response message sending unit,

the request message sending unit is used for sending a registration request message/S1 establishment request message carrying network sharing information to HNB GW/HeNB GW; the network sharing information carries: a list of public land mobile network PLMN identities that HNB/HeNB can share;

the response message sending unit is used for sending a registration receiving message/S1 establishment response message to the HNB/HeNB according to the notification of the judging unit; the registration receive message/S1 establishes a response message carrying: the list of PLMN identifications supported by HNB GW/HeNB GW in the list of PLMN identifications shared by HNB/HeNB;

the response message receiving unit is used for receiving a registration receiving message/S1 establishment response message from HNB GW/HeNB GW and informing the broadcast unit; and the broadcasting unit is used for broadcasting the system message.

8. The system for implementing network sharing of home base station according to claim 7, wherein the system further comprises a Home base station management System HMS/evolved Home base station management System HeMS,