CN103037463A

CN103037463A - Method supporting user equipment (UE) handover

Info

Publication number: CN103037463A
Application number: CN2012102361984A
Authority: CN
Inventors: 许丽香; 王弘; 范·德·费尔德
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2011-09-30
Filing date: 2012-07-06
Publication date: 2013-04-10
Anticipated expiration: 2032-07-06
Also published as: CN103037463B; CN111629407B; CN111629407A

Abstract

The invention discloses a method supporting user equipment (UE) handover. Public land mobile networks (PLMN) broadcasted in a target community are filtered through the UE, and a proper PLMN in the filtered PLMNs in a source base station is selected for the UE to finish the handover process. Or a content service gateway (CSG) which the UE can be access to is learned in the source base station, and an identification data (ID) list of all PLMNs broadcasted in the target community, a registered (r) PLMN and an equivalent (e) PLMN of the UE are learned, and therefore the proper PLMN for the UE is selected to finish the handover process. Or after learning the ID list of all the PLMNs broadcasted in the target community, the ID list of the PLMN where the ID in all the PLMNs broadcasted in the target community is the r-PLMN or the e-PLMN of the UE is informed to a multiple media expansion (MME). The PLMN for the UE is selected by the MME to finish the handover process. Or after learning the ID list of all the PLMNs broadcasted in the target community at present through the source base station, the MME is used to select the PLMNs, and the source base station is used to select the PLMN serving the UE to finish the handover process. Through utilization of the method supporting UE handover, failures in the handover process can be avoided, and continuity of businesses is guaranteed.

Description

A kind of method of supporting that UE switches

Technical field

The present invention relates to the mobile communication system field, particularly a kind of method of supporting that subscriber equipment (UE) switches.

Background technology

In mobile communication system, in order to provide better business service to specific UE group, often need to a plurality of radio resource management entity be formed a closed user group (CSG) for a specific UE group, such as, all UE of company or school inside are specific UE groups, for this UE group a plurality of radio resource management entity are formed a CSG, special access service is provided.

Ubiquitous for a specific UE group in mobile communication system with the situation that a plurality of radio resource management entity form CSG, for this situation more clearly is described, the below describes as an example of Long Term Evolution (LTE) system of system architecture evolution (SAE) example.

Fig. 1 is the structural representation of existing LTE system, and as shown in Figure 1, in the Radio Access Network of LTE system, radio resource management entity comprises macro base station (eNB) 101 and HeNB102, and (the HeNB GW) 103 that comprise home base-station gateway alternatively.Wherein, link to each other by X2 interface between the eNB101, each eNB101 directly links to each other with mobile management entity (MME) 104 in the core net by the S1 interface respectively; HeNB102 can link to each other with HeNB GW103 by the S1 interface, linked to each other with MME104 by the S1 interface by HeNB GW103 again, also can directly link to each other with MME104 by the S1 interface, perhaps, when not disposing HeNB GW103 in the system, HeNB102 directly links to each other with MME 104 by the S1 interface; And eNB 101 and HeNB 102 can be connected among a plurality of MME 104 in the core net.

For more abundant access service is provided, polytype radio resource management entity is provided, the HeNB102 in the described LTE of Fig. 1 system has comprised opening HeNB, CSG type HeNB and mixed type HeNB as example.Wherein, opening HeNB does not have the UE of specific access, and UE can access opening HeNB arbitrarily; CSG type HeNB only allows UE(among the particular UE group of its service for ease of describing, below with the user among the particular UE group referred to as CSG UE) access; Mixed type HeNB then both can allow the CSG UE access of its service, so that provide the more access service of high-quality for this CSG UE, also can allow other non-CSG UE accesses simultaneously.

Fig. 2 switches to example with S1 and has described the specific works flow process that UE switches to CSG type HeNB or mixed type HeNB residential quarter, and source base station can be eNB or HeNB.As shown in Figure 2, this flow process may further comprise the steps:

Step 201: source base station S-(H) the eNB configuration UE sends and approaches indication control (Proximity Indication control).

Step 202: at UE near CSG type HeNB residential quarter or mixed type HeNB residential quarter when (the CSG ID of described residential quarter is in the CSG that can access of UE tabulation), UE send " entering " near indication to the base station.

In this step, describedly comprise wireless access technology (RAT) and frequency information near the residential quarter near indication.

Step 203: when the measurement configuration of described frequency/RAT did not exist, source base station was measured the UE configuration is corresponding.

Described measurement comprises measurement clearance, and thus, UE can carry out the measurement of described RAT and frequency.

Step 204:UE sends measurement report to source base station.

Described measurement report comprises the PCI that measures the residential quarter.

Step 205: the source base station configuration UE is carried out system information SI request and the report of specific PCI respective cell.

Step 206:UE obtains the relevant system information of purpose HeNB with automatic backlash.

Step 207:UE sends measurement report to source base station.

Described measurement report comprises the Cell Global Identity (ECGI) of purpose HeNB residential quarter, Routing Area code (TAC), CSG ID and member.

Step 208: source base station sends handoff requirement message to MME.

Described handoff requirement message comprises ECGI and the CSG ID of purpose HeNB residential quarter, and further, if the purpose residential quarter is the hybrid access module, then described handoff requirement message also comprises the residential quarter access module.

Step 209:MME carries out access control according to the signatory CSG information of the UE of the CSG ID that receives and preservation to UE.

In this step, if access control failure, MME sends to switch and prepares failed message and finish this handoff procedure to source base station, and if handoff requirement message comprise access module, then MME determines the member condition of UE, and sends to the purpose base station by handover request message.

Step 210:MME sends handover request message to purpose (T)-HeNB.

In the situation that has HeNB GW to dispose, MME sends to the purpose base station to handover request message by HeNB GW.

Described handoff request message contains CSG ID, and if the purpose residential quarter be the hybrid access module, described message also comprises CSG member indication.

The CSG ID that receives in step 211: the purpose HeNB checking handover request message is the CSG ID of purpose Cell Broadcast CB whether.

If the CSG ID that receives is the CSG ID of purpose Cell Broadcast CB, then distribute suitable resource, and if CSG member to indicate UE be the member, purpose HeNB can carry out priority principle to UE.

Step 212: purpose HeNB sends switching request acknowledgement message to MME.

In the situation that has HeNB GW to dispose, purpose HeNB sends to MME to switching request acknowledgement message by HeNB GW.

Step 213:MME sends switching command message to source base station.

Step 214: source base station sends switching command message to UE.

Need to prove, move in the process of CSG type HeNB or mixed type HeNB residential quarter at UE, access control is done in two steps, the CSG that can the access tabulation of the UE that UE preserves according to the CSG ID of purpose residential quarter and UE, see the whether member of purpose residential quarter of UE, UE report UE be the member to network, MME further verifies UE in step 209.

So far, namely finished and existing switched to realize that by S1 UE moves to the whole process of HeNB.

Support in the shared situation of Radio Access Network (RAN) PLMN(registration PLMN or equivalent PLMN that the public land mobile network (PLMN) that source base station is supported according to the purpose base station cell and UE can access at purpose base station cell (non-CSG residential quarter or mixed cell)) common factor in to select a PLMN be that UE registers PLMN.

Current, CSG residential quarter or mixed cell are only broadcasted a PLMN ID.

Under CSG residential quarter or mixed cell were supported situation that RAN shares, switching how to support the purpose residential quarter was the problem that do not solve to get at present.

If the purpose base station cell is the CSG residential quarter of supporting that RAN shares, purpose base station cell broadcasting CSG ID and a plurality of PLMN sign.If (PLMN1, the CSG ID of broadcasting) allows in the CSG tabulation of access at UE, wherein PLMN1 is that PLMN and the PLMN1 of the broadcasting of purpose base station cell are current UE registration PLMN(rPLMN) or equivalent PLMN(ePLMN), then UE is the member of CSG residential quarter or mixed cell, in CSG residential quarter or mixed cell member's the situation at UE, UE reports CGI, TAI, CSG ID and member indicate to source base station, after source base station is received the UE report, do not know which PLMN purpose HeNB residential quarter supports, do not know UE is the member yet under which PLMN, so can't select purpose PLMN, selecting in inappropriate situation, can cause handoff failure, affect the continuity of UE business.Specifically can be referring to following example:

UE rPLMN=B, ePLMN={A, C}, accessible CSG tabulation={ (c1, A), (c1, B), (c2, A) }; Candidate's switching purpose base station cell broadcasting PLMNs{D, A, C, E}, CSG=c1.

Because (c1, A) in the CSG that can access of UE tabulation, PLMN-A is the PLMN of purpose Cell Broadcast CB and is the ePLMN of UE, so UE can send the member and indicate to source base station, still, source base station does not know which PLMN the purpose base station cell supports, so can only know from ECGI first PLMN of purpose base station cell broadcasting, D for example, but rPLMN or ePLMN that D is not UE can be accessed, thereby cause source base station can't carry out handoff procedure.This situation is to be same the existence in mixed type residential quarter and the situation of supporting a plurality of PLMN at the purpose base station cell.

Original source base station can be mixed cell under member's the PLMN for UE selects UE, yet, because the existence of the problems referred to above, cause source base station to choose mixed cell under the PLMN that UE is not the member for UE, thereby so that UE can not enjoy better service quality and charging policy.

Further, even source base station is known the PLMNs of purpose base station cell broadcasting, source base station is according to the PLMNs{D of purpose base station cell broadcasting, A, C, the rPLMN of E} and UE and ePLMNs PLMN{B, A, C} need at PLMN{A, select the PLMN of new UE registration among the C}, yet, source base station does not also know UE is the member under which PLMN, if source base station is selected PLMN C, switching also can be failed.Be the mixed type residential quarter and support in the situation of a plurality of PLMN at the purpose base station cell, source base station can choose at random a PLMN, causing thus original UE can access one oneself is member's PLMN, but by source base station UE has been switched to own right and wrong member's PLMN, thereby so that UE can not enjoy quality services quality and charging policy.

Summary of the invention

In view of this, the invention provides the method that a kind of UE of support switches, can avoid the failure of handoff procedure, guarantee professional continuity.

For achieving the above object, the technical scheme of the embodiment of the invention specifically is achieved in that

A kind of method of supporting that user equipment (UE) switches, the method comprises:

UE sends measurement report to source base station, and described measurement report comprises one or more among the public land mobile network sign PLMN ID that broadcasts the purpose residential quarter;

Behind the PLMN for UE selection purpose residential quarter among the PLMN ID of source base station from the described measurement report that receives, initiate to switch.

When the purpose residential quarter was closed subscriber group (CSG) type or mixed type, the PLMN of the PLMN ID that comprises in the described measurement report was:

Among the PLMN ID of purpose CSG type base station from home residential quarter or mixed type base station from home Cell Broadcast CB, the CSG ID of described PLMN ID and purpose base station from home Cell Broadcast CB in CSG that UE can access tabulation, or,

Among the PLMN ID of purpose CSG type base station from home residential quarter or mixed type base station from home Cell Broadcast CB, be registration PLMN rPLMN or the equivalent PLMN ePLMN of UE, and the CSG ID of described PLMN ID and purpose base station from home Cell Broadcast CB is in the CSG tabulation that UE can access.

When the purpose residential quarter was mixed type or style of opening, the PLMN of the PLMN ID that comprises in the described measurement report was:

The PLMN ID of purpose mixed type or opening base station from home Cell Broadcast CB, and be registration PLMN rPLMN or the equivalent PLMN ePLMN of UE;

Or, all PLMN ID of purpose mixed type or opening base station from home Cell Broadcast CB.

When purpose base station from home residential quarter is mixed type and is CSG type member residential quarter, the PLMN of the PLMN ID that comprises in the described measurement report is: the registration PLMN rPLMN of UE or equivalent PLMN ePLMN, and the CSG ID of described PLMNID and purpose base station from home Cell Broadcast CB is in the CSG of UE access tabulation;

When the purpose residential quarter be mixed type and non-CSG type member residential quarter or purpose base station from home residential quarter for opening, the PLMN of the PLMN ID that comprises in the described measurement report is: all PLMN ID of the registration PLMN rPLMN of UE or equivalent PLMN ePLMN or purpose base station from home Cell Broadcast CB.

Described measurement report also comprises the indication information corresponding to each PLMN ID of purpose Cell Broadcast CB, is used to indicate under corresponding each PLMN ID UE whether purpose CSG type residential quarter or mixed type residential quarter member.

Source base station is chosen in the PLMN ID that UE is served in purpose base station from home residential quarter, and the PLMN IDs of the UE report that described source base station is selected is the rPLMN ID of UE or a PLMN ID among the ePLMN ID.

The method also comprises: MME carries out the access control of UE or CSG member is checked.

In the present embodiment, by among the PLMN of UE with the purpose Cell Broadcast CB, the CSG ID of described PLMN ID and purpose Cell Broadcast CB is in the CSG tabulation that UE can access, or be rPLMN or the ePLMN of UE among the PLMN of purpose Cell Broadcast CB, and the CSG ID of described PLMN ID and purpose Cell Broadcast CB is in the CSG tabulation that UE can access, or all PLMN sign of purpose Cell Broadcast CB is all added an indication information be broadcast to source base station, or be rPLMN or the ePLMN of UE among the PLMN of purpose Cell Broadcast CB, or the PLMN of purpose Cell Broadcast CB, and then select one of them PLMN sign to send to MME by source base station, and finish access control to UE by MME, finish that PLMN in the handoff procedure selects.

A kind of method of supporting that user equipment (UE) switches, the purpose residential quarter is closed subscriber group (CSG) type or mixed type, the method comprises:

Mobile management entity MME sends CSG that UE can the access source base station of tabulating;

Source base station obtains the public land mobile network PLMN tabulation of adjacent cell broadcasting;

Source base station is selected the PLMN of purpose residential quarter from the PLMN tabulation that obtains, initiate to switch.

The PLMN tabulation that described source base station obtains adjacent cell broadcasting comprises:

UE sends measurement report to the source base station residential quarter, and described measurement report comprises the physical-layer cell identifier PCI of adjacent cell;

Base station indication UE reads the Cell Global Identity ECGI of PCI respective cell in the measurement report;

After UE reads ECGI, send the ECGI that comprises the adjacent cell that reads, Routing Area code TAC, the measurement report of the PLMN tabulation of CSG ID and broadcasting is to source base station.

Source base station obtains the Internet Protocol IP address of adjacent cell;

Source base station sends X2 and sets up request message to neighbor base station, describedly sets up the information that request message comprises the source base station residential quarter, and the information of described residential quarter comprises the PLMN tabulation of this Cell Broadcast CB;

Neighbor base station sends X2 and sets up response message to source base station, describedly sets up the information that response message comprises adjacent cell, and the information of described residential quarter comprises the PLMN tabulation of this Cell Broadcast CB.

Described source base station is that UE selects the PLMN of purpose residential quarter to comprise: source base station is that UE is chosen among the PLMN of UE report, and is rPLMN or the ePLMN of UE, and { PLMN, the PLMN of purpose residential quarter CSG ID} in the CSG tabulation that UE can access.

Present embodiment is by the CSG tabulation of being known that by source base station UE can access, and knows all PLMN ID tabulations of broadcasting the purpose residential quarter, thereby be the PLMN of UE selection purpose residential quarter, finishes handoff procedure.

A kind of user equipment (UE) of supporting switches to the method for residential quarter, and the purpose residential quarter is closed subscriber group (CSG) type or mixed type, and the method comprises:

Source base station is included in the CSG of purpose residential quarter sign ID and PLMN ID and sends to mobile management entity MME in the handoff requirement message, and described PLMN ID is among the PLMN ID that broadcasts of the PLMN ID that broadcasts of purpose residential quarter or purpose residential quarter and is the PLMN ID tabulation of registration PLMN rPLMN or the equivalent PLMN ePLMN of UE;

MME is after UE selects the PLMN of purpose residential quarter, initiates to switch.

Source base station obtains the Internet Protocol IP address of adjacent cell;

Described MME is that UE selects the PLMN of purpose residential quarter to comprise: MME is that UE is chosen among the PLMN of UE report, and is rPLMN or the ePLMN of UE, and { PLMN, the PLMN of purpose residential quarter CSG ID} in the CSG tabulation that UE can access.

Present embodiment is after knowing all PLMN ID tabulation of broadcasting the purpose residential quarter by source base station, by being the PLMN that UE selects the purpose residential quarter by MME, finishes handoff procedure.

Source base station sends access and selects request message to MME, described access selects request message to comprise the CSG sign ID of purpose residential quarter, PLMN ID tabulation, described PLMN ID tabulation is among the PLMN ID of all PLMN ID of purpose Cell Broadcast CB or purpose Cell Broadcast CB and be the registration PLMN rPLMN of UE or the PLMN ID of equivalent PLMN ePLMN;

It is registration PLMN rPLMN or the equivalent PLMN ePLMN of UE that the CSG ID that MME provides according to source base station and PLMN ID list filtering go out, and UE is purpose CSG residential quarter or mixed cell member's PLMN ID under this PLMN;

Select the PLMN of purpose residential quarter among the PLMN ID that source base station comprises for UE from the control response message that MME sends, initiate to switch.

MME filters out from the PLMN ID tabulation that source base station is received, the CSG ID of described PLMN ID and purpose Cell Broadcast CB is in the CSG tabulation that UE can access.

Source base station obtains the Internet Protocol IP address of adjacent cell;

Described MME filters out the PLMN ID that UE can access in the purpose residential quarter and comprises: MME is that UE filters out in the PLMN of UE report, and is among the rPLMN or ePLMN of UE, and { PLMN, the PLMN of purpose residential quarter CSG ID} in the CSG tabulation that UE can access.

Present embodiment is after knowing all PLMN ID tabulations of broadcasting the purpose residential quarter by source base station, it is rPLMN or the ePLMN of UE that the signatory CSG information filtering of the UE that is preserved according to the rPLMN of the CSG ID that receives, all the PLMN ID tabulations that broadcast the purpose residential quarter, UE or ePLMNs and MME by MME goes out, and UE is purpose CSG residential quarter or mixed cell member's PLMN ID under this PLMN, and then after in the PLMN after the MME screening, being chosen as the PLMN of UE service by source base station, finish handoff procedure.

In sum, various embodiments of the present invention all can be finished handoff procedure for UE selects suitable PLMN, thereby have avoided the failure of handoff procedure, have guaranteed professional continuity.

Description of drawings

Fig. 1 is the structural representation of existing LTE system;

Fig. 2 switches to the workflow diagram of CSG or mixed type HeNB by S1 for existing UE;

Fig. 3 is the workflow diagram that the present invention supports UE changing method embodiment one;

Fig. 4 is the workflow diagram that the present invention supports UE changing method embodiment two;

Fig. 5 is the workflow diagram that the present invention supports UE changing method embodiment three;

Fig. 6 is that source base station obtains the workflow diagram that PLMN ID tabulating method one is broadcasted in the adjacent area;

Fig. 7 is that source base station obtains the workflow diagram that PLMN ID tabulating method two is broadcasted in the adjacent area;

Fig. 8 the present invention supports the workflow diagram of UE changing method embodiment four;

Fig. 9 the present invention supports the workflow diagram of UE changing method embodiment five.

Figure 10 the present invention supports the workflow diagram of UE changing method embodiment six;

Figure 11 the present invention supports the workflow diagram of UE changing method embodiment seven.

Embodiment

In order to solve problems of the prior art, the present invention proposes the method that a kind of UE of support switches, that is:

UE sends measurement report to source base station, and described measurement report comprises one or more among the public land mobile network sign PLMN ID that broadcasts the purpose residential quarter; Behind the PLMN for UE selection purpose residential quarter among the PLMN ID of source base station from the described measurement report that receives, initiate to switch,

Or when the purpose residential quarter was closed subscriber group (CSG) type or mixed type, mobile management entity MME sent CSG that UE can the access source base station of tabulating; Source base station obtains the public land mobile network PLMN tabulation of adjacent cell broadcasting; Source base station is selected the PLMN of purpose residential quarter from the PLMN tabulation that obtains, initiates to switch,

Or when the purpose residential quarter was closed subscriber group (CSG) type or mixed type, source base station obtained the public land mobile network PLMN tabulation of adjacent cell broadcasting; Source base station is included in the CSG of purpose residential quarter sign ID and PLMN ID and sends to mobile management entity MME in the handoff requirement message, and described PLMN ID is among the PLMN ID that broadcasts of the PLMN ID that broadcasts of purpose residential quarter or purpose residential quarter and is the PLMN ID tabulation of registration PLMN rPLMN or the equivalent PLMN ePLMN of UE; MME is after UE selects the PLMN of purpose residential quarter, initiates to switch,

Or when the purpose residential quarter was closed subscriber group (CSG) type or mixed type, source base station obtained the public land mobile network PLMN tabulation of adjacent cell broadcasting; Source base station sends access and selects request message to MME, described access selects request message to comprise the CSG sign ID of purpose residential quarter, PLMN ID tabulation, described PLMN ID tabulation is among the PLMN ID of all PLMN ID of purpose Cell Broadcast CB or purpose Cell Broadcast CB and be the registration PLMN rPLMN of UE or the PLMN ID of equivalent PLMN ePLMN; It is registration PLMN rPLMN or the equivalent PLMN ePLMN of UE that the CSG ID that MME provides according to source base station and PLMN ID list filtering go out, and UE is purpose CSG residential quarter or mixed cell member's PLMN ID under this PLMN; Select the PLMN of purpose residential quarter among the PLMN ID that source base station comprises for UE from the control response message that MME sends, initiate to switch.

Before introducing concrete implementation, need to carry out following explanation:

UE is at certain PLMN(PLMN1 for example among the present invention) under be purpose CSG residential quarter or mixed cell member or UE at certain PLMN(PLMN1 for example) under be that the member refers to: the CSG ID of purpose Cell Broadcast CB and PLMN1 are in the CSG tabulation that UE can access, and wherein PLMN1 is the PLMN ID of purpose CSG residential quarter or mixed cell broadcasting.

Wherein, UE is that the member refers in certain CSG residential quarter or mixed cell: among the PLMN of CSG residential quarter or mixed cell broadcasting, such PLMN is arranged, PLMN1 for example, PLMN1 is registration PLMN or the equivalent PLMN of UE, and the CSG ID of purpose Cell Broadcast CB and PLMN1 are in the CSG tabulation that UE can access; The PLMN ID that UE can access in the purpose residential quarter refers to: the PLMN sign (for example PLMN ID1) among the PLMN ID of purpose Cell Broadcast CB, described PLMN ID1 is the sign of rPLMN or the ePLMN of UE, and the CSG ID of purpose Cell Broadcast CB and PLMN ID1 are in the CSG tabulation that UE can access.

The concept of CSG member residential quarter is identical with definition in the 3GPP standard 36.331, both for the UE of RRC connection mode, rPLMN or ePLMN that UE is arranged among the PLMN of a Cell Broadcast CB, and the CSG ID of described PLMN ID and Cell Broadcast CB is in the CSG tabulation that UE can access.

For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.

Embodiment one,

In the present embodiment, after getting access to the relevant system information of purpose residential quarter by UE, member's PLMN sign under which or which PLMN with UE among the PLMN of purpose Cell Broadcast CB, or be rPLMN or the ePLMN of UE among the PLMN of purpose Cell Broadcast CB, and UE is that member's PLMN sign sends to source base station under this PLMN, and then by the access inspection of the PLMN of source base station checking UE report and select to send to MME by one of them PLMN sign of access checking, and by MME finish UE is selected PLMN and purpose Cell Broadcast CB at source base station CSG ID whether access control or the CSG member in the CSG tabulation that UE can access check that concrete switching flow can be referring to Fig. 3 (having omitted the detailed description of the step that has nothing to do with the present invention) among this figure.As shown in Figure 3, the base station from home residential quarter of present embodiment is CSG type or mixed type, and this flow process comprises:

Step 301: source base station S-(H) the eNB configuration UE sends and approaches indication control (Proximity Indication control).

Step 302: at UE near CSG type HeNB residential quarter or mixed type HeNB residential quarter when (the CSG ID of described residential quarter is in the CSG that can access of UE tabulation), UE send " entering " near indication to the base station.

Comprise RAT and frequency information near the residential quarter near indication.

Step 303: when the measurement configuration of described frequency/RAT did not exist, source base station was measured to the UE configuration is corresponding, and described measurement can comprise measurement clearance, and thus, UE can carry out the measurement of described RAT and frequency.

Step 304:UE sends measurement report to source base station.

Step 305: the source base station configuration UE is carried out system information SI request and the report of specific PCI respective cell.

Step 306:UE obtains the relevant system information of purpose HeNB with automatic backlash.

Step 307:UE sends measurement report to source base station.

In this step, described measurement report not only comprises the Cell Global Identity (ECGI) of purpose HeNB residential quarter, Routing Area code (TAC), and CSG ID and member, but also comprise one or more among the PLMN ID that broadcasts the purpose residential quarter.

Wherein, the PLMN of the PLMN ID that comprises in the described measurement report is: UE is purpose CSG district or mixed cell member, or, the registration PLMN rPLMN of UE or equivalent PLMN ePLMN, and UE is purpose CSG residential quarter or mixed cell member under this PLMN.Be specially: among the PLMN ID that purpose CSG residential quarter or mixed cell are broadcasted among the PLMN that described PLMN ID is the purpose Cell Broadcast CB, the CSG ID of described PLMN ID and purpose Cell Broadcast CB is in the CSG tabulation that UE can access, if UE is the member under a plurality of PLMN of purpose Cell Broadcast CB, what then described measurement report comprised can be the PLMN identification list; Or, described PLMN ID is the PLMN ID that UE can access in the purpose residential quarter, be to be rPLMN or the ePLMN of UE among the PLMN of purpose Cell Broadcast CB, and the CSG ID of purpose Cell Broadcast CB and the corresponding PLMN ID PLMN ID in the CSG tabulation that UE can access, if it is a plurality of that the PLMN ID that UE can access in the purpose residential quarter has, what then described message comprised can be the PLMN identification list.

The PLMN ID that UE sends above-mentioned filtration tabulates to source base station.For the coding of described information, UE can send to source base station to the PLMN ID that satisfies above-mentioned condition since second PLMN ID from the PLMN ID of purpose Cell Broadcast CB.If first PLMN ID in the main PLMN ID(broadcast message) also satisfy above-mentioned condition, namely equal rPLMN or ePLMN, and the CSG ID that broadcast described PLMN ID and purpose residential quarter is in the CSG tabulation that UE can access, UE comprises the suitable indication of main PLMN in measurement report, because comprised main PLMN ID among the ECGI, do not need to repeat to comprise.

The access inspection of the PLMN ID of source base station checking UE report is also selected a PLMN ID for UE in the PLMN ID that checks by access.Source base station UE in measurement report is chosen in the PLMN that the purpose residential quarter is the UE service in the PLMN ID that the purpose residential quarter can be accessed.Need to prove that source base station need to guarantee that the PLMN ID that selects is rPLMN or the ePLMN of UE.Because source base station has been preserved rPLMN and the ePLMN of UE, source base station is according to preserving to such an extent that rPLMN and the ePLMN of UE guarantees.When UE initially accessed this base station, rPLMN and the ePLMN of UE received in the base station from MME.If UE accesses for the first time this source base station and comes by the X2 switching, then this base station obtains rPLMN and the ePLMN of UE from the source base station that switched last time.RPLMN and ePLMN that how concrete UE obtains UE are not emphasis of the present invention, ignore detailed record explanation here.

The PLMN ID that comprises in the corresponding UE measurement report is to be rPLMN or the ePLMN of UE among the PLMN of purpose Cell Broadcast CB, and the method for the CSG ID of purpose Cell Broadcast CB and the corresponding PLMN ID PLMN ID in the CSG tabulation that UE can access, source base station verifies that described PLMN should be the rPLMN of UE or ePLMN and be the rPLMN ID of UE or the PLMN ID of ePLMN ID for UE selects one, afterwards, the PLMN sign of selecting is included among the TAI, sends to MME by step 308.

Step 308: source base station sends handoff requirement message to MME.

Described handoff requirement message not only comprises ECGI and the CSG ID of purpose residential quarter, also comprises purpose residential quarter place TAI, and described TAI comprises the PLMN sign of selection.

As the prior art, if the purpose residential quarter is the hybrid access module, then described message also comprises the residential quarter access module.

Step 309:MME is according to the CSG ID that receives, UE is carried out access control to the signatory CSG information of the PLMN ID of selection and the UE of preservation or CSG member checks.

MME is the signatory CSG information that obtains UE from HSS, and the step that specifically obtains is not emphasis of the present invention, omitted detailed technical descriptioon here.

Wherein, the signatory CSG information of UE comprises the CSG ID identification list that UE can access under registration PLMN and equivalent PLMN, and the CSG tabulation that UE can access for example can be PLMN1{CSG1, CSG2 ..., PLMN2{CSG5, CSG6 ...; The CSG tabulation that UE can access also can be { PLMN1, CSG1}, { PLMN2, CSG1}, { PLMN2, CSG3} ... Deng.

The present invention does not limit the concrete form of the CSG tabulation that UE can access, and needs whether can access the purpose residential quarter with reference to PLMN and two information UE of purpose residential quarter CSG ID of selecting when MME carries out access control to UE.

The MME transmission is switched the preparation failed message and is finished this handoff procedure to source base station after the access control failure, if handoff requirement message comprises access module, then MME determines the member condition of UE, and sends to the purpose base station by handover request message.

Step 310:MME sends handover request message to purpose (T)-HeNB.

In the situation that has HeNB GW to dispose, MME sends to the purpose base station from home to handover request message by HeNB GW, and described message comprises CSG ID, if the purpose residential quarter is the hybrid access module, described message comprises CSG member's indication.

The CSG ID that receives in step 311: the purpose HeNB checking handover request message is the CSG ID of purpose Cell Broadcast CB whether.

If the CSG ID that receives is the CSG ID of purpose Cell Broadcast CB, then distribute suitable resource, be the member if CSG member indicates UE, purpose HeNB can carry out priority principle to UE.

Step 312: purpose HeNB sends switching request acknowledgement message to MME.

In the situation that has HeNB GW to dispose, by HeNB GW switching request acknowledgement message is sent to MME.

Step 313:MME sends switching command message to source base station.

Step 314: source base station sends RRC and connects reconfiguration message to UE.Described RRC connects reconfiguration message and comprises switching command information.

So far, namely finished the whole workflow of present embodiment UE changing method.

Embodiment two,

With embodiment one, in the present embodiment, also be after obtaining the relevant system information of purpose residential quarter by UE, the PLMN sign of purpose Cell Broadcast CB is sent to source base station, and then select one of them PLMN sign to send to MME by source base station, and finish access control to UE by MME.Yet, be with embodiment one difference, in the present embodiment, UE is that all PLMN sign with the purpose Cell Broadcast CB all sends to source base station, and when sending each PLMN sign, add an indication information for each PLMN sign, be used to indicate corresponding each PLMN sign UE whether member or PLMN ID that whether UE can access in the purpose residential quarter under this PLMN, specifically can be referring to Fig. 4.As shown in Figure 4, the residential quarter of present embodiment is CSG type or mixed type, and this flow process comprises:

Step 401:UE sends measurement report to the serving BS residential quarter (being the source base station residential quarter), and described measurement report comprises PCI and the signal quality of neighbor base station residential quarter.

Step 402: base station indication UE reads the ECGI of the base station cell that PCI is corresponding in the measurement report.

In this step, it is same as the prior art how UE reads the corresponding informance of adjacent cell, ignores detailed technical descriptioon here.

Step 403:UE obtains the relevant system information of purpose HeNB with automatic backlash.

Step 404:UE sends measurement report to serving BS, described measurement report comprises the ECGI of the purpose residential quarter of reading, TAC, CSG ID, each PLMN ID of purpose Cell Broadcast CB and indication information (be used to indicate corresponding each PLMN ID UE under this PLMN whether member or PLMN ID that whether UE can access in the purpose residential quarter).

Need to prove that CSG ID just comprises when the purpose residential quarter that detects is CSG type or mixed type.

Serving BS is after receiving the measurement report that comprises foregoing, this residential quarter is added neighboring BS relationship preserves, and be UE that member or which PLMN ID are the PLMN ID that UE can access in the purpose residential quarter under which PLMN of purpose Cell Broadcast CB according to indication information, right and wrong member or which PLMN ID are not that the information of the UE PLMN ID that can access in the purpose residential quarter is preserved under which PLMN.

Step 405:UE sends measurement report to serving BS, and described message comprises PCI and the signal quality of purpose residential quarter.

Need to prove that the operation of this step is not the essential step in this method with step 401, is omissible.

Step 406: source base station sends handoff requirement message to MME.

Source base station is to be chosen in the PLMN that the purpose residential quarter is the UE service among member's the PLMN under certain PLMN at the UE of UE report, and selected PLMN should be rPLMN or the ePLMN of UE.Perhaps source base station is chosen in the PLMN that the purpose residential quarter is the UE service at UE in the PLMN ID that the purpose residential quarter can be accessed.Need to prove that source base station need to guarantee that the PLMN ID that selects is rPLMN or the ePLMN of UE.Because source base station has been preserved rPLMN and the ePLMN of UE, source base station is according to preserving to such an extent that rPLMN and the ePLMN of UE guarantees.When UE initially accessed this base station, rPLMN and the ePLMN of UE received in the base station from MME.If UE accesses for the first time this source base station and comes by the X2 switching, then this base station obtains rPLMN and the ePLMN of UE from the source base station that switched last time.RPLMN and ePLMN that how concrete UE obtains UE are not emphasis of the present invention, ignore detailed record explanation here.

Source base station is that the PLMN sign that will select is included in and sends to MME's among the TAI, described handoff requirement message comprises ECGI and the CSG ID of purpose residential quarter, also comprise purpose residential quarter place TAI, and if the purpose residential quarter be the hybrid access module, then described message also comprises the residential quarter access module.

Step 407-step 412: its operation is identical with step 309-step 314, no longer describes in detail here.

So far, namely finished the whole workflow that present embodiment UE switches to the base station from home residential quarter.

Embodiment three,

In the present embodiment, it is the CSG tabulation by being known that by source base station UE can access, and know that the PLMN ID that broadcasts the purpose residential quarter tabulates, from the PLMN tabulation that obtains, selecting the purpose residential quarter is the PLMN of UE service, initiate to switch, Fig. 5 is the workflow diagram that the present invention supports to switch embodiment three.Here omitted the detailed description of the step that has nothing to do with the present invention.As shown in Figure 5, the residential quarter of present embodiment is CSG type or mixed type, and this flow process comprises:

The CSG that step 500:MME transmission UE can access tabulates to the base station.

In this step, CSG that can MME can access UE by the initial UE context request message when UE initially accesses current service cell tabulates to the base station: switch by S1 and come if UE initially accesses current service cell, then the MME CSG that can access UE by handover request message tabulates to the base station; If UE initially accesses current service cell and comes by the X2 switching, then MME tabulates to the base station by the CSG that path switching request acknowledgement message transmission UE can access.Perhaps, source base station is tabulated to the base station by the CSG that handover request message transmission UE can access.

MME obtains CSG tabulation that UE can access from HSS, and the step that specifically obtains is not emphasis of the present invention, has omitted detailed technical descriptioon here.Wherein, the UE CSG tabulation that can access comprises the CSG ID identification list that UE can access under registration PLMN and equivalent PLMN; CSG that UE can access tabulation for example can be under the PLMN1 CSG1, CSG2 ..., the CSG tabulation that PLMN2UE can access CSG5, CSG6 ...; The CSG tabulation that UE can access also can be { PLMN1, CSG1}, { PLMN2, CSG1}, { PLMN2, CSG3} ... Deng.

Step 500a: source base station obtains the PLMN ID tabulation of purpose Cell Broadcast CB.

In this step, the PLMN ID tabulation that source base station obtains the purpose Cell Broadcast CB can have two kinds of implementations, be the source base station PLMN ID tabulation that can obtain broadcasting the purpose residential quarter from UE (detailed process can referring to Fig. 6), perhaps set up the PLMN ID tabulation that obtains from the purpose residential quarter broadcasting the purpose residential quarter (detailed process can referring to Fig. 7) by X2.Wherein, source base station obtains the purpose residential quarter from UE and broadcasts PLMN ID tabulation dual mode is arranged again, the one, obtain from UE by Automatic Neighboring Relation ANR by Fig. 6 is described, when obtaining by ANR, the ANR process is before preparing switching, for example can between step 500 and step 501, carry out, also can between step 503 and step 505, carry out (like this, step 504 is identical with step 501, carry out and once get final product, do not need to repeat), present embodiment does not limit order and the time point of ANR process.The 2nd, in step 507, by UE the PLMN ID of purpose Cell Broadcast CB tabulation is sent to source base station (with embodiment one).The implementation method that the PLMN ID that another kind of source base station obtains broadcasting the purpose residential quarter tabulates is to dispose by operation and maintenance.Can use this method and not affect the main contents that the PLMN of present embodiment selects.

The PLMN ID tabulation that UE sends to source base station can be all PLMN ID that broadcast the purpose residential quarter, and UE can be that the registration PLMN of UE or the part PLMN ID of equivalent PLMN send to source base station filtering out among the PLMN ID of purpose Cell Broadcast CB also.

The below is introduced Fig. 6 and these two kinds methods that obtain the PLMN ID tabulation of purpose Cell Broadcast CB of Fig. 7 respectively, and at first, referring to Fig. 6, this process can comprise:

Step 601:UE sends measurement report to Serving cell, and described measurement report comprises PCI and the signal quality of neighbor base station residential quarter.

Step 602: base station indication UE reads the ECGI of PCI respective cell in the measurement report.

It is same as the prior art how UE reads the corresponding informance of adjacent area, ignores detailed technical descriptioon here.

After step 603:UE reads, send measurement report to serving BS, described measurement report comprises the ECGI of the contiguous base station from home residential quarter of reading, TAC, all PLMN ID of CSG ID and broadcasting.

In this step, described CSG ID just comprises when the adjacent cell that detects is CSG type or mixed type.

After serving BS receives the measurement report that comprises foregoing, this residential quarter is added neighboring BS relationship preserve.

So far, namely finished the whole workflow of the PLMN ID tabulation of the acquisition purpose Cell Broadcast CB that this method adopts.

The X2 that passes through that provides referring to Fig. 7 sets up the detailed process that obtains the PLMN ID tabulation broadcasted the purpose residential quarter from purpose base station from home residential quarter, as shown in Figure 7, this process take (H) eNB1 as source base station, HeNB2 is as the purpose base station from home illustrates, specifically can comprise:

Step 701:(H) eNB-1 obtains the IP address of neighbor base station HeNB-2.

The IP that how to obtain neighbor base station is not emphasis of the present invention, ignores detailed technical descriptioon here.

Step 702:(H) eNB-1 sends X2 and sets up request message to HeNB-2, describedly sets up the information that request message comprises (H) eNB-1 residential quarter, and the information of described residential quarter comprises all PLMN signs of this Cell Broadcast CB.

Step 703:HeNB-2 sends X2 and sets up response message to (H) eNB-1, describedly sets up the information that response message comprises the HeNB-2 residential quarter, and the information of described residential quarter comprises all PLMN signs of this Cell Broadcast CB.

So far, namely finished the whole workflow that this method obtains the PLMN ID tabulation broadcasted the purpose residential quarter.This method that obtains adjacent area broadcasting PLMN ID of corresponding this method, need to set up X2 interface between source base station and the neighbor base station, in the time of the PLMN ID list update of broadcasting when an adjacent cell, can upgrade the PLMN ID that preserve the opposite end by eNB config update process.

Step 501 is identical to step 306 with step 301 to step 506, no longer describes in detail here.

Step 507:UE sends measurement report to source base station, and described measurement report comprises the Cell Global Identity (ECGI) of purpose HeNB residential quarter, Routing Area code (TAC), CSG ID and member.

Corresponding source base station obtains the method two that PLMN ID tabulation is broadcasted in the purpose residential quarter from UE, described message also comprises the PLMN identification list of purpose Cell Broadcast CB, perhaps is the part PLMN ID tabulation of registration PLMN or the equivalent PLMN of UE in the PLMN of the purpose Cell Broadcast CB sign.

After source base station is received measurement report, be chosen in the PLMN ID of purpose residential quarter service for UE.Need to prove, source base station is according to the PLMN tabulation of purpose Cell Broadcast CB, the rPLMN of UE or ePLMN and the CSG that allows UE to access tabulate to select, source base station need to be determined which PLMN among the PLMN of purpose Cell Broadcast CB in the rPLMN of UE or ePLMN and described PLMN PLMNi{PLMNi for example, the CSGID} of purpose Cell Broadcast CB is in the CSG tabulation that UE can access, if the PLMN ID that has a plurality of such PLMN(purpose residential quarters to broadcast, and be rPLMN or the ePLMN of UE, and { described PLMN ID, purpose residential quarter CSG ID} is in the CSG tabulation that UE can access), then source base station is selected a PLMN ID for UE in these PLMN.

For example: UErPLMN=B, ePLMN={A, C, D}, accessible CSG tabulation={ (c1, A), (c1, B), (c1, D), (c2, A) }, candidate's HO purpose Cell Broadcast CB PLMNs{D, A, C, E}, CSG=c1, then the UE PLMN that can access in the purpose residential quarter is { A, D}, because A, D are in ePLMN, and A, D is the residential quarter of purpose Cell Broadcast CB, and (c1, A), (c1, D) is in the CSG tabulation that UE can access.Then source base station is chosen in the PLMN for the UE service of purpose residential quarter in A or D.

The PLMN ID tabulation that corresponding source base station obtains from UE is to be the method for the part PLMN ID tabulation of the registration PLMN of UE or equivalent PLMN the PLMN sign of purpose Cell Broadcast CB, another kind of implementation as present embodiment, source base station can be only among the PLMN of UE report, PLMNi{PLMNi for example, the PLMN sign of the CSG ID} of purpose Cell Broadcast CB in the CSG tabulation that UE can access found out.If the PLMN that has a plurality of such PLMN(UE to report, and described PLMN ID, purpose residential quarter CSG ID} is in the CSG tabulation that UE can access), then source base station is that UE selects a PLMN ID in these PLMN.Need to prove that source base station need to guarantee that the PLMN ID that selects is rPLMN or the ePLMN of UE.Because source base station has been preserved the rPLMN of UE and ePLMN source base station according to preserving to such an extent that rPLMN and the ePLMN of UE guarantees.When UE initially accessed this base station, rPLMN and the ePLMN of UE received in the base station from MME.If UE accesses for the first time this source base station and comes by the X2 switching, then this base station obtains rPLMN and the ePLMN of UE from the source base station that switched last time.RPLMN and ePLMN that how concrete UE obtains UE are not emphasis of the present invention, ignore detailed record explanation here.

Afterwards, source base station is included in the PLMN sign of selecting among the TAI, sends to MME by step 508.

Step 508 to 514 with step 308 to 314 identical, no longer describe in detail here.

Embodiment four

With embodiment three, in the present embodiment, source base station also needs to know in the PLMN ID that PLMN ID tabulates or broadcast the purpose residential quarter tabulation of broadcasting the purpose residential quarter part PLMN ID tabulation of the registration PLMN or the equivalent PLMN that are UE, concrete how to obtain the purpose residential quarter broadcast in the PLMN ID tabulation of PLMN ID tabulation or purpose residential quarter broadcasting be the method for part PLMN ID tabulation of the registration PLMN of UE or equivalent PLMN with implementing three, detailed description no longer here.But be with embodiment three differences, present embodiment is by being that UE selects PLMN by MME, and its workflow can referring to Fig. 8, also have been omitted the detailed description of the step that has nothing to do with the present invention here, the residential quarter of present embodiment is CSG type or mixed type, specifically comprises:

Step 801 is identical to step 507 with step 501 to step 807, no longer describes in detail here.

Step 808: source base station comprises a PLMN ID in TAI.

In this step, the PLMN ID that comprises can be the PLMN ID that broadcast the purpose residential quarter, or among the PLMN that broadcasts of purpose residential quarter and be the PLMN ID that selects among the PLMN of the rPLMN of UE or ePLMN.

Step 809: source base station sends handoff requirement message to MME.

In this step, described handoff requirement message not only comprises ECGI and the CSG ID of purpose residential quarter, also comprises purpose residential quarter place TAI.If the purpose residential quarter is the hybrid access module, then described handoff requirement message also comprises the residential quarter access module.

Further, described handoff requirement message also comprises PLMN ID tabulation, and described PLMN ID tabulation can be to be again the rPLMN of UE or the PLMN ID of ePLMN among the purpose Cell Broadcast CB PLMNID that filters out of all PLMN ID of broadcasting of purpose residential quarter or source base station or UE.If be again the rPLMN of UE or the PLMN ID of ePLMN among the purpose Cell Broadcast CB PLMN ID of UE screening, then need to prove, source base station need to be verified rPLMN or the ePLMN that described PLMN ID is UE, and source base station sends to MME to the PLMN ID tabulation after verifying.Because source base station has been preserved rPLMN and the ePLMN of UE, source base station is according to preserving to such an extent that rPLMN and the ePLMN of UE guarantees.When UE initially accessed this base station, rPLMN and the ePLMN of UE received in the base station from MME.If UE accesses for the first time this source base station and comes by the X2 switching, then this base station obtains rPLMN and the ePLMN of UE from the source base station that switched last time.RPLMN and ePLMN that how concrete UE obtains UE are not emphasis of the present invention, ignore detailed record explanation here.

Step 810: corresponding source base station sends is that the signatory CSG information of the UE that preserves according to the rPLMN of the CSG ID that receives, all the PLMN ID tabulations that broadcast the purpose residential quarter, UE or ePLMNs and MME of the method MME of all PLMN ID of broadcasting of purpose residential quarter is carried out access control to UE, perhaps CSG member checks, selects purpose PLMN.

For example, if PLMNn is the PLMN of purpose Cell Broadcast CB and is rPLMN or the ePLMNs of UE, if all { PLMNn, purpose residential quarter CSG ID} is not in the UE CSG tabulation that can access, then access control failure or CSG member check, the MME transmission was switched the preparation failed message and finished this handoff procedure to source base station after access control or CSG member checked unsuccessfully; If a plurality of PLMNn, and purpose residential quarter CSG ID} is in the CSG that can access of UE tabulation, and MME selects a PLMN in a plurality of PLMN be the PLMN that this UE is served in the purpose residential quarter.The PLMN ID that corresponding source base station sends is to be again the method for the PLMN ID of the rPLMN of UE or ePLMN among the purpose Cell Broadcast CB PLMN ID, then MME is according to the CSG ID that receives, UE is carried out access control to the signatory CSG information of the UE that the PLMN ID tabulation of receiving and MME preserve or CSG member checks, select purpose PLMN, from the PLMN that receives, select PLMNm, the PLMN(PLMNm of purpose residential quarter CSG ID} in the CSG that can access of UE tabulation is the PLMN that receives from source base station).If all { PLMNm, purpose residential quarter CSG ID} is not in the UE CSG tabulation that can access, then access control or CSG member check failure, and the MME transmission was switched the preparation failed message and finished this handoff procedure to source base station after access control or CSG member checked unsuccessfully; If a plurality of PLMNm, and purpose base station from home residential quarter CSG ID} is in the CSG that can access of UE tabulation, and MME selects a PLMN in a plurality of PLMN be the PLMN that this UE is served in the purpose residential quarter.

After choosing, if that comprise from the TAI that source base station is received is not the PLMN ID that selects, as a kind of implementation of the present invention, the PLMN ID that MME can replace among the TAI is the PLMN ID that MME selects.If the switching between the different MME, then source MME finds purpose MME with the PLMN ID and the TAC that select; Switch the restriction tabulation if MME sends to will comprise in the handover request message of purpose residential quarter, then MME provides registration PLMN and equivalent PLMN according to the PLMN of new selection, and the PLMN that namely selects is registration PLMN, and rPLMN originally and other ePLMN are ePLMN; If handoff requirement message comprises access module, then MME determines the member condition of UE, and sends to the purpose base station by handover request message.

Step 811:MME sends handover request message to purpose (T)-HeNB.

In the situation that has HeNB GW to dispose, MME sends to the purpose base station to handover request message by HeNB GW, and described handoff request message contains CSG ID, if the purpose residential quarter is the hybrid access module, described handover request message also comprises CSG member's indication.

Step 812 is identical to step 314 with step step 311 to step 815, no longer describes in detail here.

Embodiment five

The same with four with embodiment three, in the present embodiment, source base station also needs to know in the PLMN ID that PLMN ID tabulates or broadcast the purpose residential quarter tabulation of broadcasting the purpose residential quarter part PLMN ID tabulation of the registration PLMN or the equivalent PLMN that are UE, concrete how to obtain the purpose residential quarter broadcast in the PLMN ID tabulation of PLMN ID tabulation or purpose residential quarter broadcasting be the method for part PLMN ID tabulation of the registration PLMN of UE or equivalent PLMN also with implementing three, detailed description no longer here.But be with embodiment three and four differences, present embodiment is to be that the signatory CSG information of the UE that preserves of the rPLMN of part PLMN ID tabulation, UE of the registration PLMN of UE or equivalent PLMN or ePLMNs and MME is carried out access control to UE in the PLMN ID tabulation of broadcasting according to the CSG ID that receives, the PLMN ID tabulation that broadcasts the purpose residential quarter or purpose residential quarter by MME, screening PLMN, and then in the PLMN ID that MME filters out, be chosen as the PLMN of UE service by source base station.What corresponding source base station sent to MME is the PLMN ID tabulating method that broadcast the purpose residential quarter, it is registration PLMN rPLMN or the equivalent PLMN ePLMN of UE that MME goes out according to the CSG ID that receives, the PLMN ID list filtering that broadcasts the purpose residential quarter, and UE is CSG type purpose residential quarter or mixed type purpose residential quarter member's PLMN ID under this PLMN, and then is chosen as the PLMN of UE service in the PLMN ID that MME filters out by source base station.Its workflow can be referring to Fig. 9, and the base station from home residential quarter of present embodiment is CSG type or mixed type, specifically comprises:

Step 901 is identical to step 507 with step 501 to step 907, no longer describes in detail here.

Step 908: source base station sends access and selects request message to MME.

Described access selects request message to comprise the CSG ID of purpose residential quarter, also comprise PLMN ID tabulation, described PLMN ID tabulation can be to be again the rPLMN of UE or the PLMN ID of ePLMN among the purpose Cell Broadcast CB PLMN ID that filters out of all PLMN ID of broadcasting of purpose residential quarter or source base station or UE.

In this step, corresponding source base station sends is the method for all PLMN ID of broadcasting of purpose residential quarter, then MME is according to the CSG ID that receives, all PLMN ID tabulations that broadcast the purpose residential quarter, the signatory CSG information of the UE that the rPLMN of UE or ePLMNs and MME preserve is carried out access control to UE, screening PLMN filters out the PLMN ID that UE can access in the purpose residential quarter.

Broadcast among the PLMN in the purpose residential quarter, which MME determines is rPLMN or the ePLMNs of UE, and this PLMN ID, purpose residential quarter CSG ID} is in the CSG tabulation that UE can access, and MME screens the PLMN ID that satisfies such condition.For example the PLMNn of purpose Cell Broadcast CB is registration PLMN or the ePLMN of UE, if all { PLMNn, purpose residential quarter CSG ID} is not in the UE CSG tabulation that can access, then access control failure, and MME sends access and selects failed message to finish this process to source base station after the access control failure; Perhaps MME transmission access control responds to source base station, does not comprise any PLMN ID in the described message, and it is that UE can access in the purpose residential quarter that source base station is known without any PLMN, and source base station is not initiated to the handoff procedure of purpose residential quarter.

Corresponding source base station sends is to be again the method for the PLMN ID of the rPLMN of UE or ePLMN among the purpose Cell Broadcast CB PLMN ID that filters out of source base station or UE, then MME is according to the CSG ID that receives, the signatory CSG information of the UE that the PLMN ID tabulation of receiving and MME preserve is carried out access control to UE, screening PLMN filters out the PLMN ID that UE can access in the purpose residential quarter.From the PLMN that source base station is received, select PLMNm, the PLMN(PLMNm of purpose residential quarter CSG ID} in the CSG that can access of UE tabulation is the PLMN that receives from source base station).If all { PLMNm, purpose residential quarter CSG ID} are not in the UE CSG tabulation that can access, then access control failure, MME sends access and selects failed message to finish this process to source base station after the access control failure; Perhaps MME transmission access control responds to source base station, does not comprise any PLMN ID in the described message, and it is that UE can access in the purpose residential quarter that source base station is known without any PLMN, and source base station is not initiated to the handoff procedure of purpose residential quarter.

Step 909:MME sends access and selects response message to source base station, and described access selects response message to comprise PLMN ID tabulation.

Described PLMN ID is the PLMN ID tabulation that filters out in the step 908, be to be rPLMN or the ePLMN of UE among the PLMN of purpose Cell Broadcast CB, and { described PLMN ID, purpose Cell Broadcast CB CSG ID} is the PLMN ID during the CSG that can access of UE tabulates, if neither one PLMN ID satisfies described demand, then also the information of the PLMN that does not meet the demands notice source base station, source base station can not be initiated to the handoff procedure of purpose residential quarter to MME like this.

Another implementation method as this step, described access control response message can comprise the PLMN ID tabulation (the PLMN ID tabulation that can select) that above-mentioned steps 908 filters out, can also comprise the PLMN ID tabulation that cannot select, the PLMN ID except screened those PLMN ID that go out that namely receives from source base station in step 908 tabulates.

Step 910: being chosen in the purpose residential quarter among the PLMN that source base station is received in step 909 is the PLMN of UE service.

Step 911: source base station is initiated existing handoff procedure.

This process can be that existing S1 switches or X2 switches.

A kind of implementation of corresponding this method, MME can carry out access control to UE again after receiving handoff requirement message.

Embodiment six,

In the present embodiment, after getting access to the relevant system information of purpose residential quarter by UE, the PLMN ID that the purpose residential quarter is broadcasted tabulates, or, it is the PLMN ID tabulation of rPLMN ID or the ePLMN ID of UE among the PLMN ID that broadcast the purpose residential quarter, or, that the PLMN sign of CSG ID in the CSG tabulation that UE can access that broadcast the rPLMN of UE or ePLMN and described PLMN ID and purpose residential quarter sends to source base station among the PLMN of purpose Cell Broadcast CB, and then by the access inspection of the PLMN of source base station checking UE report and select to send to MME by one of them PLMN sign of access checking, and by MME finish UE is selected PLMN and purpose Cell Broadcast CB at source base station CSG ID whether access control or the CSG member in the CSG tabulation that UE can access check that concrete switching flow can be referring to Figure 10 (having omitted the detailed description of the step that has nothing to do with the present invention) among this figure.As shown in figure 10, the base station from home residential quarter of present embodiment is mixed type or style of opening, and this flow process comprises:

Step 1001:UE obtains the relevant system information of purpose HeNB.

Step 1002:UE sends measurement report to source base station.

Wherein, the PLMN of the PLMN ID that comprises in the described measurement report is:

If the purpose residential quarter is mixed cell and is CSG member residential quarter, the PLMN ID that then comprises is to be the PLMN ID tabulation of CSG ID in the CSG tabulation that UE can access of rPLMN ID or ePLMN ID and described PLMN ID and the purpose Cell Broadcast CB of UE among the PLMN ID of purpose Cell Broadcast CB;

If the purpose residential quarter is mixed type rather than CSG type residential quarter or opening residential quarter, the PLMN ID that then comprises is to be the PLMN ID tabulation of rPLMN or the ePLMN ID of UE among the PLMN ID that broadcasts of the PLMN ID that broadcasts of purpose residential quarter or purpose residential quarter.

UE sends above-mentioned PLMN ID and tabulates to source base station.For the coding of described information, UE can send to source base station to the PLMN ID that satisfies above-mentioned condition since second PLMN ID from the PLMN ID of purpose Cell Broadcast CB.If first PLMN ID in the main PLMN ID(broadcast message) also satisfy above-mentioned condition, namely for the mixed type residential quarter and be CSG member residential quarter, main PLMN equals CSG ID that rPLMN or ePLMN and described PLMN ID and purpose residential quarter broadcast in the CSG tabulation that UE can access, perhaps for mixed type but not CSG member residential quarter or open residential quarter, main PLMN equals rPLMN or ePLMN, then UE comprises the suitable indication of main PLMN in measurement report, because comprised main PLMN ID among the ECGI, do not need to repeat to comprise.

The PLMN ID of source base station checking UE report should be the rPLMN of UE or ePLMN and be the rPLMN ID of UE or the PLMN ID of ePLMN ID for UE selects one, afterwards, the PLMN that selects identified is included among the TAI, sends to MME by step 1003.

Step 1003: source base station sends handoff requirement message to MME.

Step 1004:MME is according to the CSG ID that receives, UE is carried out access control to the signatory CSG information of the PLMN ID of selection and the UE of preservation or CSG member checks.

Step 1005:MME sends handover request message to purpose (T)-HeNB.

In the situation that has HeNB GW to dispose, MME sends to the purpose base station to handover request message by HeNB GW, and described message comprises CSG ID, if the purpose residential quarter is the hybrid access module, described message comprises CSG member's indication.

Step 1006: purpose HeNB sends switching request acknowledgement message to MME.

Step 1007:MME sends switching command message to source base station.

Step 1008: source base station sends RRC and connects reconfiguration message to UE.Described RRC connects reconfiguration message and comprises switching command information.

Embodiment seven,

In the present embodiment, after getting access to the relevant system information of purpose residential quarter by UE, the PLMN ID that the purpose residential quarter is broadcasted tabulates, or, that the rPLMN ID of UE or the PLMN ID tabulation of ePLMN ID send to source base station among the PLMN ID that broadcast the purpose residential quarter, and then access inspection and the selection of being carried out the PLMN of UE report by source base station send to MME by one of them PLMN sign that access checks, and by MME finish UE is selected PLMN and purpose Cell Broadcast CB at source base station CSG ID whether access control or the CSG member in the CSG tabulation that UE can access check that concrete switching flow can be referring to Figure 11 (having omitted the detailed description of the step that has nothing to do with the present invention) among this figure.As shown in figure 11, the base station from home residential quarter of present embodiment is mixed type or style of opening, and this flow process comprises:

Step 1101:UE obtains the relevant system information of purpose HeNB.

Step 1102:UE sends measurement report to source base station.

In this step, described measurement report not only comprises the Cell Global Identity (ECGI) of purpose HeNB residential quarter, Routing Area code (TAC), and CSG ID and member, but also comprise one or more among the PLMN ID that the purpose base station cell broadcasts.

The PLMN ID tabulation that broadcast the purpose residential quarter, or,

It is the PLMN ID tabulation of registration PLMN rPLMN or the equivalent PLMN ePLMN of UE in the PLMN ID tabulation that broadcast the purpose residential quarter.

UE sends above-mentioned PLMN ID and tabulates to source base station.For the coding of described information, UE can send to source base station to the PLMN ID that satisfies above-mentioned condition since second PLMN ID from the PLMN ID of purpose Cell Broadcast CB.If it is that the PLMN ID of the rPLMN of UE or ePLMN ID is to the base station that UE reports among the PLMN ID that broadcasts the purpose residential quarter, first PLMN ID in the main PLMN ID(broadcast message) also satisfies above-mentioned condition, namely main PLMN equals rPLMN or ePLMN, then UE comprises the suitable indication of main PLMN in measurement report, because comprised main PLMN ID among the ECGI, do not need to repeat to comprise.

The access inspection of the PLMN ID of source base station checking UE report is also selected a PLMN ID for UE in the PLMN ID that checks by access.Among the PLMN ID that source base station comprises in measurement report for UE is chosen in the PLMN that UE is served in the purpose residential quarter, the rPLMN ID that selected PLMN ID should be UE or ePLMN ID.Need to prove that source base station need to guarantee that the PLMN ID that selects is rPLMN or the ePLMN of UE.Because source base station has been preserved rPLMN and the ePLMN of UE, source base station is according to preserving to such an extent that rPLMN and the ePLMN of UE guarantees.When UE initially accessed this base station, rPLMN and the ePLMN of UE received in the base station from MME.If UE accesses for the first time this source base station and comes by the X2 switching, then this base station obtains rPLMN and the ePLMN of UE from the source base station that switched last time.RPLMN and ePLMN that how concrete UE obtains UE are not emphasis of the present invention, ignore detailed record explanation here.

The PLMN ID of source base station checking UE report should be the rPLMN of UE or ePLMN and be the rPLMN ID of UE or the PLMN ID of ePLMN ID for UE selects one, afterwards, the PLMN that selects identified is included among the TAI, sends to MME by step 1103.

Step 1103: source base station sends handoff requirement message to MME.

Step 1104:MME is according to the CSG ID that receives, UE is carried out access control to the signatory CSG information of the PLMN ID of selection and the UE of preservation or CSG member checks.

Step 1105:MME sends handover request message to purpose (T)-HeNB.

Step 1106: purpose HeNB sends switching request acknowledgement message to MME.

Step 1107:MME sends switching command message to source base station.

Step 1108: source base station sends RRC and connects reconfiguration message to UE.Described RRC connects reconfiguration message and comprises switching command information.

Need to prove that embodiment six and embodiment seven illustrate that as an example of mixed cell example the method for this embodiment is equally applicable to move to the situation of beginning pattern HeNB residential quarter.

More than lift preferred embodiment; the purpose, technical solutions and advantages of the present invention are further described; institute is understood that; the above only is preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.

Claims

1. method of supporting that user equipment (UE) switches is characterized in that the method comprises:

2. method according to claim 1 is characterized in that, when the purpose residential quarter was closed subscriber group (CSG) type or mixed type, the PLMN of the PLMN ID that comprises in the described measurement report was:

Among the PLMN ID of purpose CSG residential quarter or mixed cell broadcasting, the CSG ID of described PLMN ID and purpose Cell Broadcast CB in the CSG tabulation that UE can access, or,

Among the PLMN ID of purpose CSG residential quarter or mixed cell broadcasting, be registration PLMN rPLMN or the equivalent PLMN ePLMN of UE, and the CSG ID of described PLMN ID and purpose Cell Broadcast CB is in the CSG tabulation that UE can access.

3. method according to claim 1 is characterized in that, when the purpose residential quarter was mixed type or style of opening, the PLMN of the PLMN ID that comprises in the described measurement report was:

The PLMN ID of purpose mixed type or opening Cell Broadcast CB, and be registration PLMN rPLMN or the equivalent PLMN ePLMN of UE;

Or, all PLMN ID of purpose mixed type or opening Cell Broadcast CB.

4. method according to claim 1 is characterized in that,

When the purpose residential quarter is mixed type and is CSG member residential quarter, the PLMN of the PLMN ID that comprises in the described measurement report is: among the PLMN ID of purpose Cell Broadcast CB, be registration PLMN rPLMN or the equivalent PLMN ePLMN of UE, the CSG ID of described PLMN ID and purpose Cell Broadcast CB is in the CSG of UE access tabulation;

When the purpose residential quarter is that mixed type and non-CSG member residential quarter or purpose residential quarter are for opening, the PLMN of the PLMN ID that comprises in the described measurement report is: among the PLMN ID that then described PLMN ID is the purpose Cell Broadcast CB, be the registration PLMN rPLMN of UE or all PLMN ID of equivalent PLMN ePLMN or purpose Cell Broadcast CB.

5. method according to claim 1, it is characterized in that, described measurement report also comprises the indication information corresponding to each PLMN ID of purpose Cell Broadcast CB, is used to indicate under corresponding each PLMN ID UE whether purpose CSG type residential quarter or mixed type residential quarter member.

6. method according to claim 1 is characterized in that, source base station is chosen in the PLMN ID that UE is served in the purpose residential quarter, and the PLMN IDs of the UE report that described source base station is selected is the rPLMN ID of UE or a PLMN ID among the ePLMNID.

7. method according to claim 1 is characterized in that, the method also comprises: MME carries out the access control of UE or CSG member is checked.

8. a method of supporting that user equipment (UE) switches is characterized in that the purpose residential quarter is closed subscriber group (CSG) type or mixed type, and the method comprises:

9. method according to claim 8 is characterized in that, the PLMN tabulation that described source base station obtains adjacent cell broadcasting comprises:

10. method according to claim 8 is characterized in that, the PLMN tabulation that described source base station obtains adjacent cell broadcasting comprises:

Source base station obtains the Internet Protocol IP address of adjacent cell;

11. each described method according to claim 8-10, it is characterized in that, described source base station is that UE selects the PLMN of purpose residential quarter to comprise: source base station is that UE is chosen among the PLMN of UE report, and be rPLMN or the ePLMN of UE, and { PLMN, the PLMN of purpose residential quarter CSG ID} in the CSG tabulation that UE can access.

12. a method of supporting that user equipment (UE) switches is characterized in that the purpose residential quarter is closed subscriber group (CSG) type or mixed type, the method comprises:

13. method according to claim 12 is characterized in that, the PLMN tabulation that described source base station obtains adjacent cell broadcasting comprises:

14. method according to claim 12 is characterized in that, the PLMN tabulation that described source base station obtains adjacent cell broadcasting comprises:

Source base station obtains the Internet Protocol IP address of adjacent cell;

15. each described method according to claim 12-14, it is characterized in that, described MME is that UE selects the PLMN of purpose residential quarter to comprise: MME is that UE is chosen among the PLMN of UE report, and be rPLMN or the ePLMN of UE, and { PLMN, the PLMN of purpose residential quarter CSG ID} in the CSG tabulation that UE can access.

16. a method of supporting that user equipment (UE) switches is characterized in that the purpose residential quarter is closed subscriber group (CSG) type or mixed type, the method comprises:

17. method according to claim 16 is characterized in that, MME filters out from the PLMN ID tabulation that source base station is received, the CSG ID of described PLMN ID and purpose Cell Broadcast CB is in the CSG tabulation that UE can access.

18. method according to claim 16 is characterized in that, the PLMN tabulation that described source base station obtains adjacent cell broadcasting comprises:

19. method according to claim 16 is characterized in that, the PLMN tabulation that described source base station obtains adjacent cell broadcasting comprises:

Source base station obtains the Internet Protocol IP address of adjacent cell;

20. method according to claim 16, it is characterized in that, described MME filters out the PLMN ID that UE can access in the purpose residential quarter and comprises: MME is that UE filters out in the PLMN of UE report, and be among the rPLMN or ePLMN of UE, and { PLMN, the PLMN of purpose base station cell CSG ID} in the CSG tabulation that UE can access.