CN102917422B - Switching method for switching to home base station and base station - Google Patents
Switching method for switching to home base station and base station Download PDFInfo
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- CN102917422B CN102917422B CN201110224337.7A CN201110224337A CN102917422B CN 102917422 B CN102917422 B CN 102917422B CN 201110224337 A CN201110224337 A CN 201110224337A CN 102917422 B CN102917422 B CN 102917422B
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- 238000000034 method Methods 0.000 title claims abstract description 72
- 210000004027 cell Anatomy 0.000 claims description 331
- 210000004754 hybrid cell Anatomy 0.000 claims description 43
- 230000000977 initiatory effect Effects 0.000 claims description 21
- 238000005259 measurement Methods 0.000 description 19
- 238000007726 management method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000021186 dishes Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/04—Reselecting a cell layer in multi-layered cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The invention discloses a switching method for switching to home base station and a base station; and the accessing is controlled by a source base station. The method comprises the following steps of: enabling the source base station to receive a switching judging auxiliary cell for one user equipment (UE); and during carrying out switching judging for the UE, enabling the source base station to initiate a switching process S1 and a switching process X2 according to the switching judging auxiliary cell of the UE and a member status reported by the UE if a target base station is a home base station. The base station comprises a receiving module and a switching module. The embodiment of the invention provides a switching method for switching to the home base station of a hybrid or CSG (Closed Subscriber Group) access mode; the traditional switching method is optimized, a core network element is not needed for access control in the switching process, the accessing is controlled by the source base station, the switching process can be effectively simplified and the switching delay is reduced.
Description
Technical field
The present invention relates to wireless communication technology field, and in particular to a kind of changing method and base for being switched to Home eNodeB
Stand.
Background technology
Home eNodeB is a kind of compact low power base station, is mainly used in place in the small range such as home and office intranets room.Family
Front yard base station is connect by indoor cable, DSL (Digital Subscriber Line, digital subscriber line) or optical fiber etc. are wired
Enter equipment and be connected to mobile operator core nets, the access service based on mobile radio networks is provided for specific user.It is
Effective supplement to existing network deployment, can effectively improve indoor voice and high-speed data service is covered.With lot of advantages, such as
Low cost, low-power, simple access, plug and play, saving passback, raising network coverage etc. compatible with existing terminal.
In LTE (Long Term Evolution, Long Term Evolution) system, Home eNodeB is referred to as HeNB (homeeNB, family
Front yard base station).The function supported by HeNB is basically identical with eNB, HeNB and EPC (Evolved Packet Core, evolution packet
Core net) between process and eNB and EPC between it is basically identical.As the arrangement of HeNB is usually not through mobile operator
The network planning, coverage is little and large number of.In order to more easily manage and in order to support greater number of HeNB, in E-
Under UTRAN (Evolved UTRAN, evolved universal terrestrial radio access network) framework, it is also possible to be connected with the S1 of EPC in HeNB
Between introduce a new network element HeNB GW (Home eNB Gateway, femto gateway).HeNB can pass through HeNB GW
As S1 agencies' connection mobile management entity (Mobility Management Entity, abbreviation MME).There is X2 between HeNB
Direct interface, can carry out load balancing, handover optimization, information exchange etc..
As HeNB only provides service for specific user, therefore introduce closing member group CSG (ClosedSubscriber
Group) concept, each CSG have unique i.e. CSG ID of mark.The little of three kinds of different access ways is defined for HeNB in LTE
Area：CSG cell --- correspondence closing (closed) pattern HeNB, the UE for being only registered as CSG group memberships can be accessed；Mixing
(hybrid) cell --- correspondence hybrid patterns HeNB, any terminal all can access, but be registered as the UE of CSG group memberships can be with
The member identities of higher priority access；Open (Open) cell --- correspondence open patterns HeNB, any UE all can access.
The access module and CSG ID of HeNB is eating dishes without rice or wine to be broadcasted.If the cell does not broadcast CSG ID and access module, for open
Cell；If the cell only broadcasts CSG ID, for CSG cell；If Cell Broadcast CB CSG ID and value are " hybrid " access
Pattern, then be hybrid cells.Core net and UE preserve the CSG ID lists that user can be accessed with member identities respectively.
But at present, UE needs mobile management entity (Mobility when connected state is switched to HeNB, generally
Management Entity, abbreviation MME) carry out Access Control.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of changing method for being switched to Home eNodeB and base station, by source base
Station carries out Access Control.
To solve above-mentioned technical problem, the invention provides a kind of changing method for being switched to Home eNodeB, including：
Source base station receives the switching determination auxiliary cell for certain user equipment (UE)；
The source base station is when the switch decision for the UE is carried out, if target BS is Home eNodeB, according to institute
State member condition judgement initiation S1 switching flows or X2 switching flows that the switching determination auxiliary cell and the UE of UE are reported.
Further, if it is determined that initiating X2 switching flows, methods described also includes, judges in Target cell to mix
(hybrid) it is to initiate X2 switching flows with member identities or with non-member identity under cell conditions.
Further, the source base station receives the switching determination auxiliary cell for certain UE, including：Source base station is from moving tube
Reason entity (MME) receives the switching determination auxiliary cell from other base stations.
Further, the source base station receives described switching determination from MME and aids in cell, including：The source base station passes through
The initial context that MME sends sets up request message or the handover request message or path transfer request of S1 interfaces confirm that message connects
Receive described switching determination and aid in cell.
Further, source base station receives described switching determination from other base stations and aids in cell, including：The source base station passes through
Member condition auxiliary information described in the handover request message sink of the X2 interface that other base stations send.
Further, the auxiliary cell that is switched and determined is used to represent in front UE once or in front handoff procedure several times
The member condition of report is consistent or inconsistent according to the member condition that user signing contract information judges with core network element；Described
The member condition reported according to the switching determination auxiliary cell and the UE of UE judges to initiate S1 switching flows or X2 switching flows,
And if it is determined that initiation X2 switching flows, judge in the case where Target cell is as hybrid cell conditions with member identities still with non-
Member identities initiate X2 switching flows, including：
After it is determined that Target cell is closing member's group (CSG cell), if being switched and determined auxiliary cell value represents consistent, and
The member condition that UE is reported represents that this UE is Target cell member, then judge to initiate UE to the X2 switching flows of Target cell；Or
Person
It is determined that Target cell be CSG cell after, if be switched and determined auxiliary cell value represent inconsistent, and UE report into
This UE of member's state representation is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and UE is reported
Member condition represents that this UE is Target cell member, then judge to initiate UE with the X2 switching flows of member identities to Target cell；
Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and UE is reported
Member condition represents that this UE is not Target cell member, then judge to initiate UE with the X2 switching streams of non-member identity to Target cell
Journey；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents inconsistent, and UE is reported
Member condition represent that this UE is not Target cell member, then judge to initiate UE with the X2 of non-member identity to Target cell switching
Flow process；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents inconsistent, and UE is reported
Member condition represent this UE for Target cell member, then judge to initiate UE to the S1 switching flows of Target cell, or judgement
UE is initiated with the X2 switching flows of non-member identity to Target cell, or judges that initiating UE arrives Target cell with member identities
X2 switching flows.
Further, after it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents inconsistent,
And the member condition that UE is reported represents that this UE is Target cell member, judge that initiating UE is cut with the X2 of member identities to Target cell
After change of current journey, methods described also includes：The source base station by the UE switching determination auxiliary cell and the UE report into
Member's state is sent to target household base station, determines the UE by target household base station and accesses mesh with member identities or non-member identity
Mark cell.
Further, after judging to initiate X2 switching flows, methods described also includes：In the transfer process of path, the MME
The UE that the MME judges is sent to into target BS in the member condition of Target cell.
To solve above-mentioned technical problem, present invention also offers a kind of realize for user equipment (UE) being switched to Home eNodeB
Base station, including receiver module and handover module, wherein：
The receiver module, for receiving the switching determination auxiliary cell for certain UE；
The handover module, for when the switch decision for the UE is carried out, if target BS is Home eNodeB,
The member condition reported according to the switching determination auxiliary cell and the UE of the UE judges to initiate S1 switching flows or X2 cuts
Change of current journey.
Further, the handover module, is additionally operable to if it is determined that initiate X2 switching flows, judge in Target cell be
It is to initiate X2 switching flows with member identities or with non-member identity under hybrid cell conditions.
Further, the receiver module is for receiving the switching determination auxiliary letter for certain UE in the following ways
Unit：The switching determination auxiliary cell is received from mobile management entity (MME) or from other base stations.
Further, the receiver module is to aid in cell for receiving described switching determination from MME in the following ways：
The receiver module sets up handover request message or the path turn of request message or S1 interfaces by the initial context that MME sends
Move request to confirm described in message sink, to be switched and determined auxiliary cell.
Further, the receiver module is aided in for receiving described switching determination from other base stations in the following ways
Cell：Member condition auxiliary letter described in the handover request message sink of the X2 interface that the receiver module is sent by other base stations
Breath.
Further, the auxiliary cell that is switched and determined is used to represent in front UE once or in front handoff procedure several times
The member condition of report is consistent or inconsistent according to the member condition that user signing contract information judges with core network element；It is described to cut
Mold changing block is to judge to send out for the member condition for being reported according to the switching determination auxiliary cell and the UE of UE in the following ways
S1 switching flows or X2 switching flows are played, and if it is determined that initiation X2 switching flows, judge in Target cell as hybrid
Still X2 switching flows are initiated with non-member identity with member identities under cell conditions, including：
After it is determined that Target cell is CSG cell, if being switched and determined auxiliary cell value represents consistent, and the member that UE is reported
This UE of state representation is Target cell member, then judge to initiate UE to the X2 switching flows of Target cell；Or
It is determined that Target cell be CSG cell after, if be switched and determined auxiliary cell value represent inconsistent, and UE report into
This UE of member's state representation is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and UE is reported
Member condition represents that this UE is Target cell member, then judge to initiate UE with the X2 switching flows of member identities to Target cell；
Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and UE is reported
Member condition represents that this UE is not Target cell member, then judge to initiate UE with the X2 switching streams of non-member identity to Target cell
Journey；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents inconsistent, and UE is reported
Member condition represent that this UE is not Target cell member, then judge to initiate UE with the X2 of non-member identity to Target cell switching
Flow process；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents inconsistent, and UE is reported
Member condition represent this UE for Target cell member, then judge to initiate UE to the S1 switching flows of Target cell, or judgement
UE is initiated with the X2 switching flows of non-member identity to Target cell, or judges that initiating UE arrives Target cell with member identities
X2 switching flows.
Further, the base station also includes sending module, and which is used for the handover module it is determined that Target cell is
Hybrid cells, switching determination auxiliary cell value represent inconsistent, and the member condition that UE is reported represents that this UE is Target cell
Member, after judging to initiate UE with the X2 switching flows of member identities to Target cell, by the switching determination auxiliary cell of the UE
And the member condition that the UE is reported is sent to target household base station, gone back with member identities with determining the UE by target household base station
It is that non-member identities access Target cell.
The embodiment of the present invention provides a kind of changing method of the Home eNodeB for being switched to hybrid or CSG access ways, right
Existing changing method is optimized, and is not required to core network element and does Access Control in handoff procedure, carries out access control by source base station
System, can effectively simplify switching flow, reduce switching delay.
Description of the drawings
Fig. 1 is the E-UTRAN network architecture diagrams for being deployed with Home eNodeB；
Fig. 2 is 1 schematic flow sheet of the embodiment of the present invention；
Fig. 3 is switched and determined auxiliary cell using method schematic diagram when being CSG cell for target；
Fig. 4 is switched and determined auxiliary cell using method schematic diagram when being hybrid cells for target；
Fig. 5 is schematic flow sheet of the present invention using example 1；
Fig. 6 is schematic flow sheet of the present invention using example 2；
Fig. 7 is schematic flow sheet of the present invention using example 3；
Fig. 8 is schematic flow sheet of the present invention using example 4.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutual combination in any.
Embodiment 1
Fig. 1 describes the E-UTRAN network architecture diagrams for being deployed with Home eNodeB.HeNB can be used as S1 generations by HeNB GW
Reason connection MME, if HeNB is used as S1 agencies by HeNB GW is connected to MME, HeNB GW relaying UE related S1 signalings.
There is X2 direct interfaces between HeNB, can be switched over by the X2 direct interfaces.There may be between macro base station and Home eNodeB
The X2 interface between eNB 3 and HeNB 1 in X2 direct interfaces, such as Fig. 1.
Fig. 2 describes this embodiment scheme flow process, comprises the following steps：
Step 201：Source base station receives the switching determination auxiliary cell for certain UE；
Source base station is possible to the cell is received from MME, for example, set up request message, S1 interfaces by initial context
Handover request message or path transfer request confirm message sink, it is also possible to receive the cell from other base stations, for example, lead to
Cross the handover request message sink of X2 interface.
Switching determination auxiliary cell is used to representing in front UE once or in front (more than twice) several times handoff procedure
The member condition of report is consistent or differs according to the member condition that user signing contract information judges with core network element (such as MME)
Cause.The cell reflect UE it is front once or the content accuracy that reports in front handoff procedure several times, base station can pass through the letter
Unit judges whether the content that UE is reported is credible.
It is switched and determined auxiliary cell to safeguard and storage at MME places, during MME can be stored in UE contexts or can not also
It is stored in UE contexts, after UE attachment removals, MME can not delete the switching determination auxiliary cell of the UE immediately, and be used under UE
In secondary handoff procedure.The member condition that MME can be judged with itself according to the member condition that UE in the historical record of switching is reported
It is compared to arrange the value for being switched and determined auxiliary cell, it is possible to according to current switching determination auxiliary cell value, and closely
The situation compared with member condition that the member condition that UE is reported in phase one or many handoff procedure is judged with MME is safeguarding more
The new switching determination aids in cell.
Above-mentioned switching determination auxiliary cell is referred to as credible indication information element, or member condition concordance cell etc., it is
Illustrate convenient, the value for being switched and determined auxiliary cell in the examples below assumes can be the value (abbreviation for representing " consistent "
" consistent ") represent it is front once or the UE is reported in front handoff procedure several times member condition and core network element judge into
Member's state consistency, or represent " inconsistent " value (referred to as " inconsistent ") represent it is front once or should in front handoff procedure several times
The member condition that the member condition that UE is reported is judged with core network element is inconsistent.
This step is not limited to perform at this moment, as long as source base station gets the cell before judgement is switched over.
Step 202：UE sends measurement report, and to source base station, (i.e. the serving BS of the UE, the serving BS are likely to be grand
Base station or Home eNodeB)；
The measurement report that UE is reported includes the member condition of the candidate target cells that the UE is reported thereon.
Step 203：When source base station receives the laggard hand-manipulating of needle of measurement report to the switch decision of the UE, if target BS is family
The switching determination auxiliary cell of front yard base station, the then member condition for being reported according to UE and the UE judges which kind of switching (X2 or S1 initiated
Switching) flow process；
Judge initiate X2 switching flows when, determine whether Target cell be hybrid cell conditions under be with into
Member's identity or non-member identity initiate X2 switching flows.
Member condition is used to indicate the member whether UE is candidate target cells, if such as candidate target cells member
User, then in measurement report, member condition cell value is member, if candidate target cells non-member user, then measure
Can the not no member condition cell in the candidate target cells relevant information in report.
Target cell can be hybrid cells or CSG cell, specifically include following two：
1) cell-of-origin is open cells, or cell-of-origin is that hybrid/CSG cells and source and target CSG ID are differed；
2) source base station is macro base station, and Target cell is hybrid/CSG cells.
● it is determined that Target cell be CSG cell when, concrete determination methods as shown in figure 3, including：
If being switched and determined auxiliary cell value to be expressed as " consistent ", and UE reporting this UE for Target cell member, then judgement
UE is played to the X2 switching flows of Target cell；
If being switched and determined auxiliary cell value to be expressed as " inconsistent ", and UE reporting this UE for Target cell member, then judge
UE is initiated to the S1 switching flows of Target cell；
Switching is not initiated otherwise.
● it is determined that Target cell be hybrid cells when, concrete determination methods as shown in figure 4, including：
If being switched and determined auxiliary cell value to be expressed as " consistent ", and UE reporting this UE for Target cell member, then judgement
UE is played with the X2 switching flows of member identities to Target cell；
If being switched and determined auxiliary cell value to be expressed as " consistent ", and UE reporting this UE non-targeted cell members, then judge to send out
UE is played with the X2 switching flows of non-member identity to Target cell；
If being switched and determined auxiliary cell value to be expressed as " inconsistent ", and UE reporting this UE non-targeted cell members, then judge
UE is initiated with the X2 switching flows of non-member identity to Target cell；
If being switched and determined auxiliary cell value to be expressed as " inconsistent ", and UE reporting this UE for Target cell member, then can sentence
Surely take any one in following operation：
A. judge to initiate UE to the S1 switching flows of Target cell；
B. judge to initiate UE with the X2 switching flows of non-member identity to Target cell；
C. judge to initiate UE with the X2 switching flows of member identities to Target cell；
Now, the UE that value is " member " can be reported by source base station by X2 handover requests message member condition and value
For " inconsistent " switching determination auxiliary cell be sent to target household base station, by target household base station decide the UE in its sole discretion with into
Member or non-member identity access Target cell, and such as target household base station can be determined according to itself current loads situation, if
Current loads are higher, then the UE is accessed with non-member identity, otherwise can be accessed with member identities.
Step 204：Judgements of the UE based on source base station switches to Target cell from Serving cell by S1 or X2 switching flows.
According to X2 switching flows, then in the transfer process of path, MME judges that UE exists after receiving path transfer request message
The member condition of Target cell, and the member condition of the UE for being judged notifies Target cell own base station.Target cell is received
The member condition of UE is updated after the member condition indicated to MME and relevant treatment is carried out.Member's shape of UE is reaffirmed by MME
State, and the member condition is sent to into Target cell own base station, it is ensured that UE can access the Target cell with correct identity.
Realize that the base station of said method includes receiver module and handover module, wherein：
The receiver module, for receiving the switching determination auxiliary cell for certain UE；
The handover module, for when the switch decision for the UE is carried out, if target BS is Home eNodeB,
The member condition reported according to the switching determination auxiliary cell and the UE of the UE judges to initiate S1 switching flows or X2 cuts
Change of current journey.
Preferably, the handover module, is additionally operable to if it is determined that initiate X2 switching flows, judge in Target cell be
It is to initiate X2 switching flows with member identities or with non-member identity under hybrid cell conditions.
Preferably, the receiver module is for receiving the switching determination auxiliary cell for certain UE in the following ways：
The switching determination auxiliary cell is received from MME or from other base stations.
Preferably, the receiver module is to aid in cell for receiving described switching determination from MME in the following ways：Institute
State handover request message or path transfer that receiver module sets up request message or S1 interfaces by the initial context that MME sends
Request confirms auxiliary cell is switched and determined described in message sink.
Preferably, the receiver module is believed for receiving the auxiliary that is switched and determined from other base stations in the following ways
Unit：Member condition auxiliary letter described in the handover request message sink of the X2 interface that the receiver module is sent by other base stations
Breath.
Preferably, it is described be switched and determined auxiliary cell be used to representing it is front once or the UE is reported in front handoff procedure several times
Member condition be consistent or inconsistent according to the member condition that user signing contract information judges with core network element；The switching
Module is to judge to initiate for the member condition for being reported according to the switching determination auxiliary cell and the UE of UE in the following ways
S1 switching flows or X2 switching flows, and if it is determined that initiation X2 switching flows, judge little as hybrid in Target cell
Still X2 switching flows are initiated with non-member identity with member identities in the case of area, including：
Zero it is determined that Target cell be CSG cell after, if be switched and determined auxiliary cell value represent consistent, and UE report into
This UE of member's state representation is Target cell member, then judge to initiate UE to the X2 switching flows of Target cell；Or
Zero after it is determined that Target cell is CSG cell, if being switched and determined auxiliary cell value represents inconsistent, and UE is reported
Member condition represents that this UE is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell；Or
Zero after it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and UE is reported
Member condition represent this UE for Target cell member, then judge that initiating UE is flowed with the X2 switchings of member identities to Target cell
Journey；Or
Zero after it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and UE is reported
Member condition represent that this UE is not Target cell member, then judge to initiate UE with the X2 of non-member identity to Target cell switching
Flow process；Or
Zero after it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents inconsistent, and on UE
The member condition of report represents that this UE is not Target cell member, then judge that initiating UE is cut with the X2 of non-member identity to Target cell
Change of current journey；Or
Zero after it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents inconsistent, and on UE
The member condition of report represents that this UE is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell, or sentence
The disconnected UE that initiates is with the X2 switching flows of non-member identity to Target cell, or judges to initiate UE with member identities to Target cell
X2 switching flows.
Preferably, the base station also includes sending module, and which is used for the handover module it is determined that Target cell is
Hybrid cells, switching determination auxiliary cell value represent inconsistent, and the member condition that UE is reported represents that this UE is Target cell
Member, after judging to initiate UE with the X2 switching flows of member identities to Target cell, by the switching determination auxiliary cell of the UE
And the member condition that the UE is reported is sent to target household base station, gone back with member identities with determining the UE by target household base station
It is that non-member identities access Target cell.
Using example 1
This application example describes source base station and sets up process reception switching determination auxiliary cell simultaneously by initial context
According to the flow process that the cell is switched over using 1 scheme of embodiment, as shown in figure 5, comprising the following steps：
Step 501：During attaching process or service request or tracing section updating, UE completes RRC with serving BS
After (Radio Resource Control, radio resource control) connection establishment, send RRC connection setup complete messages to
Serving BS sets up process to trigger initial context, and NAS (Non-Access Stratum) message that UE is received from upper strata is carried in the message,
The NAS message be probably attach request (attach request) message or service request (service request) message or
Tracing section updating asks (TAU request) message；
Serving BS is likely to be macro base station or Home eNodeB.
Step 502：Source base station receive RRC connection setup complete messages carry out sending after relevant treatment initial user message to
MME continues initial context and sets up process, and NAS PDU (protocol Data Unit) (possibly attach is carried in the message
Request or service request or TAU request)；
Step 503：MME sends initial context after carrying out associative operation after receiving initial user message and sets up request message
To source base station, MME will be switched and determined auxiliary cell by the message and be sent to source base station；Source HeNB receives initial context foundation
After request message, execution subsequent operation completes initial context and sets up process；
Step 504：UE sends measurement report to source base station；Stored by itself comprising UE in the measurement report
The member status information in candidate households base station that whitelist (white list) judges；
Step 505：Source base station determines handover-target base station according to measurement report, and reported in measurement report according to UE
Member condition and switching determination auxiliary cell judge which kind of switching (X2 or S1 switchings) initiated to Target cell；
If initiating X2 switchings and Target cell being hybrid cells, also determine whether to send out with member or non-member identity
Play switching.
As described in example 1 above, here is omitted for judge process.
Step 506：UE carries out S1 or X2 switching flows according to above-mentioned judged result.
If it is determined that perform X2 switchings, then after MME receives the path transfer request message of target HeNB transmission, according to the message
In include CSG ID, access module (access mode, only when Target cell be hybrid cells when exist) and user signing
Information judges member conditions of the UE under the Target cell, if the CSG ID are in user signing contract information judges that member condition is
Member, if the CSG ID not in user signing contract information if judge that member condition is non-member.Then the member condition is referred to by MME
Show target HeNB, target HeNB carries out subsequent treatment according to the member condition that the member condition that MME is indicated updates the UE, including making
Follow-up call access control associative operation is carried out with the member condition for updating.
Using example 2
This application example describes source base station and confirms message sink switching by path transfer request in X2 handoff procedures
Judge auxiliary cell the flow process switched over using 1 scheme of embodiment according to the cell.In this example, UE is switched by X2
Flow process is switched to Home eNodeB B from base station A, and by path transfer request, Home eNodeB B confirms that message connects in this switching process
The switching determination auxiliary cell of UE is received, and is carried out using the cell during UE is switched to Home eNodeB C from Home eNodeB B
Switch decision.Base station A is likely to be macro base station in the present embodiment, it is also possible to be Home eNodeB.As shown in fig. 6, including with
Lower step：
Step 601：UE sends measurement report and gives base station A；
Step 602：Base station A switches over judgement, selectes handover-target base station and determines switching type；
Assume to meet X2 switching conditions in the present embodiment, then base station A initiates X2 switching flows.
Step 603：Base station A sends X2 handover requests message and gives base station B, is used to switch what is prepared comprising base station B in message
The context of relevant information and UE；
Step 604：After B switchings in base station are ready to complete, send switching request acknowledgement message and give base station A, include in the message
For indicating RRC information that UE is switched over, i.e. RRC connection reconfiguration messages；
Step 605：RRC connection reconfiguration messages are sent to UE by eating dishes without rice or wine and are accordingly switched with indicating UE by base station A
Operation；
Step 606：If desired, base station A sends SN states Transfer Message to base station B to transmit up-downgoing PDCP SN (numbers
According to convergence protocol layer sequence number, for example) state；
Step 607：After UE is successfully accessed the Target cell of base station B, transmission RRC connections reconfigure completion message and give base station B；
Step 608：Base station B transmitting pathes transfer request message is to MME notifying the own Jing of the UE more changing districts；
Step 609：MME transmitting pathes transfer request confirms that message is confirmed that to base station B MME will be cut by the message
Change judgement auxiliary cell and be sent to base station B, base station B carries out follow-up UE contexts release operation and completes switching flow；
Step 610：UE sends measurement report and gives base station B, is stored by itself comprising UE in the measurement report
The member condition in candidate households base station that whitelist judges；
Step 611：Base station B determines handover-target base station according to measurement report, and reported in measurement report according to UE
Member condition and switching determination auxiliary cell judge which kind of switching initiated to Target cell；
If initiating X2 switchings and Target cell being hybrid cells, must also judge to initiate to cut with member or non-member identity
Change.
Concrete determination methods are referring to described in embodiment 1.
Step 612：UE carries out S1 or X2 switching flows according to above-mentioned judged result.
If it is determined that performing X2 switchings, then, after MME receives the path transfer request message of Home eNodeB C transmissions, disappeared according to this
The CSG ID included in breath, access mode (only existing when Target cell is hybrid cells) and user signing contract information are sentenced
Member conditions of the disconnected UE under the Target cell, judges that member condition is member if the CSGID is in user signing contract information, if
The CSG ID then do not judge that member condition is non-member in user signing contract information.Then the member condition is indicated family by MME
Base station C, Home eNodeB C carry out subsequent treatment according to the member condition that the member condition that MME is indicated updates the UE.
Using example 3
This application example describes source base station and is switched and determined auxiliary by handover request message sink in X2 handoff procedures
Cell is simultaneously switched over using 1 scheme of embodiment according to the cell.In this example, UE passes through X2 switching flows from base station A
Base station B is switched to, base station B aids in cell by the switching determination of X2 handover requests message sink to UE in this switching process,
And judgement is switched over using the cell during UE is switched to Home eNodeB C from base station B.Base station A has in the present embodiment
Possibly macro base station, it is also possible to be Home eNodeB；Equally, base station B is likely to be macro base station, it is also possible to be Home eNodeB.
As shown in fig. 7, comprises following steps：
Step 701-702, step 704-708, step 710-712 are essentially identical with using example 2, and here does not repeat to chat
State.
The present embodiment from be following steps using the different of example 2：
Step 703：Base station A sends X2 handover requests message and gives base station B, is used to switch what is prepared comprising base station B in message
The context of relevant information and UE, base station A will be switched and determined auxiliary cell by the message and be sent to base station B；
Step 709：MME transmitting pathes transfer request confirms that message is confirmed to base station B.
Using example 4
This application example describes source base station and is switched and determined auxiliary by handover request message sink in S1 handoff procedures
Cell the flow process switched over using 1 scheme of embodiment according to the cell.In this example, UE passes through S1 switching flows from base
The A that stands is switched to base station B, in this switching process switching determination auxiliary letters of the base station B by S1 handover requests message sink to UE
Unit, and judgement is switched over using the cell during UE is switched to Home eNodeB C from base station B.Base station A has in this example
Possibly macro base station, it is also possible to be Home eNodeB；Equally, base station B is likely to be macro base station, it is also possible to be Home eNodeB.
As shown in figure 8, comprising the following steps：
Step 801：UE sends measurement report and gives base station A；
Step 802：Base station A carries out switch decision after receiving measurement report, selectes handover-target base station and determines switching class
Type；Assume to be unsatisfactory for X2 switching conditions in the present embodiment, base station A initiates S1 switching flows, base station A send switching require message to
MME；
Step 803：MME receives switching and requires message and handover request message is sent after doing respective handling to give base station B, MME
Auxiliary cell will be switched and determined by the message and be sent to base station B；
Step 804：Base station B sends switching request acknowledgement message to MME；
Step 805：MME sends switching command message (connecting reconfiguration message comprising RRC) and gives base station A；
Step 806：RRC connections reconfiguration message is sent to UE by base station A again, and UE carries out follow-up handover operation after receiving
To complete the S1 switching flows；
Step 807：UE sends measurement and gives base station B, is sentenced by the whitelist that itself stores comprising UE in the measurement report
The disconnected member condition in candidate households base station；
Step 808：Base station B determines handover-target base station according to measurement report, and reported in measurement report according to UE
Member condition and switching determination auxiliary cell judge to initiate X2 or S1 switchings to Target cell；
If initiating X2 switchings and Target cell being hybrid cells, must also judge to initiate to cut with member or non-member identity
Change.
Concrete determination methods are referring to described in embodiment 1.
Step 809：UE carries out S1 or X2 switching flows according to above-mentioned judged result.
If it is determined that performing X2 switchings, then, after MME receives the path transfer request message of Home eNodeB C transmissions, disappeared according to this
The CSG ID included in breath, access mode (only existing when Target cell is hybrid cells) and user signing contract information are sentenced
Member conditions of the disconnected UE under the Target cell, judges that member condition is member if the CSGID is in user signing contract information, if
The CSG ID then do not judge that member condition is non-member in user signing contract information.Then the member condition is indicated family by MME
Base station C, Home eNodeB C carry out subsequent treatment according to the member condition that the member condition that MME is indicated updates the UE.
One of ordinary skill in the art will appreciate that all or part of step in said method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read only memory, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, each module/unit in above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly, the present invention can also have other various embodiments, in the case of without departing substantially from spirit of the invention and its essence, ripe
Know those skilled in the art and work as and various corresponding changes and deformation, but these corresponding changes and change can be made according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (11)
1. a kind of changing method for being switched to Home eNodeB, including：
Source base station receives the switching determination auxiliary cell for certain user equipment (UE)；
The source base station is when the switch decision for the UE is carried out, if target BS is Home eNodeB, according to the UE
Switching determination auxiliary cell and the member conditions that report of the UE judge to initiate S1 switching flows or X2 switching flows；
If it is determined that initiating X2 switching flows, methods described also includes, judges in Target cell to mix hybrid cell conditions
Under be with member identities or with non-member identity initiate X2 switching flows；
It is described be switched and determined auxiliary cell be used to representing it is front once or the UE is reported in front handoff procedure several times member condition
It is consistent or inconsistent according to the member condition that user signing contract information judges with core network element；
The member condition that the switching determination auxiliary cell and the UE according to UE is reported judges to initiate S1 switching flows still
X2 switching flows, and if it is determined that initiation X2 switching flows, judge in the case where Target cell is as hybrid cell conditions with member
Identity still initiates X2 switching flows with non-member identity, including：
After it is determined that Target cell organizes CSG cell for closing member, if being switched and determined auxiliary cell value represents consistent, and UE is reported
Member condition represent this UE for Target cell member, then judge to initiate UE to the X2 switching flows of Target cell；Or
After it is determined that Target cell is CSG cell, if being switched and determined auxiliary cell value represents inconsistent, and member's shape that UE is reported
State represents that this UE is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and the member that UE is reported
This UE of state representation is Target cell member, then judge to initiate UE with the X2 switching flows of member identities to Target cell；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and the member that UE is reported
State representation this UE is not Target cell member, then judge to initiate UE with the X2 switching flows of non-member identity to Target cell；
Or
It is determined that Target cell be hybrid cells after, if be switched and determined auxiliary cell value represent inconsistent, and UE report into
Member state representation this UE is not Target cell member, then judge that initiating UE is flowed with the X2 switchings of non-member identity to Target cell
Journey；Or
It is determined that Target cell be hybrid cells after, if be switched and determined auxiliary cell value represent inconsistent, and UE report into
This UE of member's state representation is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell, or judge to initiate
UE is with the X2 switching flows of non-member identity to Target cell, or judges that initiating UE is cut with the X2 of member identities to Target cell
Change of current journey.
2. the method for claim 1, it is characterised in that：
The source base station receives the switching determination auxiliary cell for certain UE, including：
Source base station receives the switching determination auxiliary cell from mobile management entity MME or from other base stations.
3. method as claimed in claim 2, it is characterised in that：
The source base station receives described switching determination from MME and aids in cell, including：
The source base station sets up handover request message or the path of request message or S1 interfaces by the initial context that MME sends
Transfer request confirms auxiliary cell is switched and determined described in message sink.
4. method as claimed in claim 2, it is characterised in that：
Source base station receives described switching determination from other base stations and aids in cell, including：
Member condition auxiliary information described in the handover request message sink of the X2 interface that the source base station is sent by other base stations.
5. the method for claim 1, it is characterised in that：
It is determined that Target cell be hybrid cells after, if be switched and determined auxiliary cell value represent inconsistent, and UE report into
This UE of member's state representation is Target cell member, after judging to initiate UE with the X2 switching flows of member identities to Target cell, institute
Stating method also includes：
The member condition that the switching determination auxiliary cell and the UE of the UE are reported is sent to target household by the source base station
Base station, determines the UE by target household base station and accesses Target cell with member identities or non-member identity.
6. the method for claim 1, it is characterised in that：
After judging to initiate X2 switching flows, methods described also includes：
In the transfer process of path, the UE that the MME is judged by mobile management entity MME is sent out in the member condition of Target cell
Give target BS.
7. a kind of base station for realizing user equipment (UE) is switched to Home eNodeB, including receiver module and handover module, wherein：
The receiver module, for receiving the switching determination auxiliary cell for certain UE；
The handover module, for when the switch decision for the UE is carried out, if target BS is Home eNodeB, according to
The member condition that the switching determination auxiliary cell of the UE and the UE are reported judges to initiate S1 switching flows or X2 switching streams
Journey；
The handover module, is additionally operable to if it is determined that initiate X2 switching flows, judges in Target cell as hybrid cell conditions
Under be with member identities or with non-member identity initiate X2 switching flows；
It is described be switched and determined auxiliary cell be used to representing it is front once or the UE is reported in front handoff procedure several times member condition
It is consistent or inconsistent according to the member condition that user signing contract information judges with core network element；
The handover module is the member for being reported according to the switching determination auxiliary cell and the UE of UE in the following ways
Condition adjudgement initiates S1 switching flows or X2 switching flows, and if it is determined that initiation X2 switching flows, judge little in target
Area is still to initiate X2 switching flows with non-member identity with member identities under hybrid cell conditions, including：
After it is determined that Target cell is CSG cell, if being switched and determined auxiliary cell value represents consistent, and the member condition that UE is reported
Represent that this UE is Target cell member, then judge to initiate UE to the X2 switching flows of Target cell；Or
After it is determined that Target cell is CSG cell, if being switched and determined auxiliary cell value represents inconsistent, and member's shape that UE is reported
State represents that this UE is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and the member that UE is reported
This UE of state representation is Target cell member, then judge to initiate UE with the X2 switching flows of member identities to Target cell；Or
After it is determined that Target cell is hybrid cells, if being switched and determined auxiliary cell value represents consistent, and the member that UE is reported
State representation this UE is not Target cell member, then judge to initiate UE with the X2 switching flows of non-member identity to Target cell；
Or
It is determined that Target cell be hybrid cells after, if be switched and determined auxiliary cell value represent inconsistent, and UE report into
Member state representation this UE is not Target cell member, then judge that initiating UE is flowed with the X2 switchings of non-member identity to Target cell
Journey；Or
It is determined that Target cell be hybrid cells after, if be switched and determined auxiliary cell value represent inconsistent, and UE report into
This UE of member's state representation is Target cell member, then judge to initiate UE to the S1 switching flows of Target cell, or judge to initiate
UE is with the X2 switching flows of non-member identity to Target cell, or judges that initiating UE is cut with the X2 of member identities to Target cell
Change of current journey.
8. base station as claimed in claim 7, it is characterised in that：
The receiver module is for receiving the switching determination auxiliary cell for certain UE in the following ways：
The switching determination auxiliary cell is received from mobile management entity MME or from other base stations.
9. base station as claimed in claim 8, it is characterised in that：
The receiver module is to aid in cell for receiving described switching determination from MME in the following ways：
The receiver module sets up handover request message or the road of request message or S1 interfaces by the initial context that MME sends
Footpath transfer request confirms auxiliary cell is switched and determined described in message sink.
10. base station as claimed in claim 8, it is characterised in that：
The receiver module is to aid in cell for receiving described switching determination from other base stations in the following ways：
Member condition auxiliary letter described in the handover request message sink of the X2 interface that the receiver module is sent by other base stations
Breath.
11. base stations as claimed in claim 7, it is characterised in that：
The base station also includes sending module, and which is used for the handover module it is determined that Target cell is hybrid cells, switching
Judge that auxiliary cell value represents inconsistent, and the member condition that UE is reported represents this UE for Target cell member, judgement initiation UE
After with the X2 switching flows of member identities to Target cell, by the UE switching determination auxiliary cell and the UE report into
Member's state is sent to target household base station, is accessed with member identities or non-member identity with determining the UE by target household base station
Target cell.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224337.7A CN102917422B (en) | 2011-08-05 | 2011-08-05 | Switching method for switching to home base station and base station |
| PCT/CN2012/073318 WO2012155705A1 (en) | 2011-08-05 | 2012-03-30 | Handover method and base station for handing over to henb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224337.7A CN102917422B (en) | 2011-08-05 | 2011-08-05 | Switching method for switching to home base station and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102917422A CN102917422A (en) | 2013-02-06 |
| CN102917422B true CN102917422B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110224337.7A Expired - Fee Related CN102917422B (en) | 2011-08-05 | 2011-08-05 | Switching method for switching to home base station and base station |
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| WO (1) | WO2012155705A1 (en) |
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| CN104980894A (en) * | 2014-04-14 | 2015-10-14 | 中兴通讯股份有限公司 | Access control method, device and system of closed subscriber group |
| US11265782B2 (en) | 2017-08-28 | 2022-03-01 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and system for base station handover |
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| WO2012155705A1 (en) | 2012-11-22 |
| CN102917422A (en) | 2013-02-06 |
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