CN102014421B - Method and system for switching macro cell to home base station cell - Google Patents
Method and system for switching macro cell to home base station cell Download PDFInfo
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- CN102014421B CN102014421B CN 200910091990 CN200910091990A CN102014421B CN 102014421 B CN102014421 B CN 102014421B CN 200910091990 CN200910091990 CN 200910091990 CN 200910091990 A CN200910091990 A CN 200910091990A CN 102014421 B CN102014421 B CN 102014421B
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- base station
- cell
- home base
- measurement report
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a method and system for switching a macro cell to a home base station cell, which are used for solving the technical problem that UE (User Equipment) cannot be switched to the home base station cell from the macro cell. Through dividing an X2 interface resource into a dynamic part and a static part, when in switching, a macro base station creates an X2 connection to a home base station cell by utilizing the dynamic part of an X2 interface according to an identifier of the home base station cell which is carried in a measurement report and the UE wishes to be switched to, and then triggers the X2 interface-based switching, or switches through an S1 interface. Through the method and the system, the problem that the UE cannot be switched to the home base station cell from the macro cell is solved, therefore, the user experience is improved, the system reliability is enhanced, and the service income of an operator is increased.
Description
Technical field
The present invention relates to Long Term Evolution (Long Term Evolution, LTE) mobile communication system, relate in particular to a kind of changing method and system from macrocell to family's base station cell.
Background technology
The LTE mobile communication system is referring to Fig. 1, mainly comprise: core net (CN) and Access Network (E_UTRAN), core net mainly comprises Mobility Management Entity (MME) and gateway (S-GW), Access Network is by the Node B (eNodeB in evolution, ENB) consist of, between core net and Access Network by the interface between S1(core net and Access Network) the interface inter-link intercommunication, interconnect by X2 interface between the inner different eNodeB of Access Network.
It is larger that macrocell refers to cover the zone, and transmitting power is larger, the residential quarter that the user of support is many.
Home eNodeB/family expenses Node B (Home Nodeb/eNodeB, HNB) is installed in family, and enormous amount can power on and lower electricity at any time.In the network planning, HNB quantity is huge, therefore HNB residential quarter that can not be a large amount of is set to the adjacent cell of macrocell, will cause like this and be in RRC(Radio Resource Control, Radio Resource control) subscriber equipment (the User Equipment of connection status, UE) can not switch to the HNB residential quarter from macrocell, thereby cause customer service to be interrupted.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method and system of a kind of macrocell to family's base station cell switching, is used for solving UE and can not switches to from macrocell the technical problem of home base station cells.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of macrocell comprises to the changing method of family's base station cell:
Carry UE and wish that the home base station cells that switches to identifies in the measurement report that user terminal (UE) reports;
Receive the measurement report of UE at macro base station after, macro base station uses the dynamic part of X2 resource to set up macrocell according to the cell ID of described home base station cells to be connected with X2 between described home base station cells, then to trigger the switching flow based on X2 interface;
Wherein, described X2 interface resource is divided into static part and dynamic part, and static part is used for setting up macrocell and connects to the X2 between macrocell; Dynamic part is used for setting up macrocell and connects to the X2 between family's base station cell.
Further, the switching of using the dynamic part of X2 resource to be accomplished to described home base station cells at macro base station discharges the link of the X2 interface of foundation afterwards.
Further, receive the measurement report of UE at macro base station after, the cell ID of the described home base station cells of macro base station foundation triggers the switching flow based on the S1 interface.
Further, the measurement report that described UE reports refers to UE is expanded to the measurement report that macro base station reports, and carries at least the cell identity information that UE wishes the home base station cells cut in described measurement report.
Based on said method, the present invention also proposes a kind of macrocell to the switched system of family's base station cell, comprising:
Measure reporting module, be positioned at user terminal (UE), be used for neighbor cell is measured, the home base station cells that switches to is wished in decision-making; If satisfy to measure report condition, report to macro base station and carry the measurement report of wishing the home base station cells sign that switches to;
Handover module, be positioned at macro base station, be used for after the measurement report that receives user terminal (UE), wish the cell ID of the home base station cells that switches to according to the UE that carries in measurement report, use the dynamic part of X2 resource to set up macrocell and be connected with X2 between home base station cells, then trigger the switching flow based on X2 interface;
The X2 interface resource management module is used at macro base station, the X2 interface resource being divided into static part and dynamic part, and static part is used for setting up macrocell and connects to the X2 between macrocell; Dynamic part is used for setting up macrocell and connects to the X2 between family's base station cell.
Further, the switching that is accomplished to described home base station cells at the dynamic part that uses the X2 resource of described handover module discharges the link of the X2 interface of foundation afterwards.
Further, described handover module is after receiving the measurement report of UE, and the cell ID of wishing the home base station cells that switches to according to the UE that carries in measurement report triggers the switching flow based on the S1 interface.
Further, described system expands the measurement report that UE reports, and carries at least the cell identity information that UE wishes the home base station cells cut in described measurement report.
The present invention is by being divided into the X2 interface resource dynamically and static part, when switching, macro base station is wished the sign of the home base station cells that switches to according to the UE that carries in measurement report, the X2 that adopts the X2 interface dynamic part to be established to home base station cells connects, triggering is based on the switching of X2 interface, or switch by the S1 interface, by the present invention, solve UE and can not switch to from macrocell the problem of home base station cells, improve user's experience, improve system reliability, increased the business income of operator.
Description of drawings
Fig. 1 is LTE mobile communication system network structure chart;
Fig. 2 is that the present invention is switched realization flow by X2 interface;
Fig. 3 is that the present invention passes through S1 interface switching realization flow.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Embodiment 1:
Accompanying drawing 2 is realized the flow chart of switching by X2 interface for the present invention, detailed step is as follows:
Step 201: the X2 resource of macrocell (residential quarter under eNB) is divided into two parts: dynamic part and static part.Do not adopt the X2 path of static configuration between macrocell and home base station cells, adopt when needed dynamic X2 resource dynamic to set up X2 path between macrocell and home base station cells.
The X2 interface of dynamic part is to carry out Dynamic Establishing according to the concrete needs that switch, and is relevant to the UE calling, is used for switching to Home eNodeB; After in case the static part X2 interface refers to configure, unless just the X2 interface part that equipment fault or configuration modification can change is used for the switching between macro base station.The division of dynamic part and static part is to divide according to the business's of battalion demand.
Step 202:UE is connected RRC and connects with Access Network, UE enters the RRC_CONNECTED state;
Step 203: macrocell sends by RRC reprovision request message and measures configuration to UE;
After step 204:UE receives and measures configuration, start according to configuration and measure, send the RRC reprovision and complete message to eNB;
Step 205:UE measures neighbor cell, measures report condition when satisfying, and the UE reporting measurement reports is to macrocell, and measurement report comprises UE and wishes that the home base station cells of cutting identifies (ID).
Step 206: after macrocell is received the measurement report that UE reports, use UE wish the home base station cells ID that cuts set up with this Home eNodeB between X2 is connected, this X2 connection use dynamic part.
After step 207:X2 connection is successfully established, trigger the X2 switching flow;
Step 208:X2 switching is completed, and macrocell sends X2 reset request message, discharges X2 and connects.
Step 209: Home eNodeB is received X2 reset request message, and the X2 that sends X2 reset answer message and discharge local terminal connects.
Step 210: macrocell is received the X2 reset answer, and the X2 that discharges the macro base station side connects.
Embodiment 2:
The flow chart that accompanying drawing 3 switches by the S1 Interface realization for the present invention, detailed step is as follows:
Step 301:UE is connected RRC and connects with Access Network, UE enters the RRC_CONNECTED state;
Step 302:eNB sends measurement configuration request to UE by RRC reprovision request message;
After step 303:UE receives and measures configuration, start according to configuration and measure, send the RRC reprovision and complete message to eNB;
Step 304:UE measures neighbor cell, measures report condition when satisfying, and reporting measurement reports is to macrocell (eNB), and measurement report comprises UE and wishes that the home base station cells of cutting identifies (ID).
Step 305: macrocell is received measurement report, uses UE to wish the residential quarter ID that cuts, and initiates the S1 interface by core net and switches.
This embodiment can be based on carrying out the X2 resource dynamically and system's realization of static division, also can be based on the S1 Interface realization.
The present invention expands to the measurement report that macro base station reports UE, has revised the cell structure of measurement report in 3GPP 36.331 protocol versions, and the mode of concrete expansion is as follows:
Wherein measResultUEExpectEUTRA is used for carrying the cell identity information of UE wishes to cut HNB LTE residential quarter, and organization definition is as follows:
Wherein measResultUEExpectUTRA is used for carrying UE and wishes the HNB UTRA cell identity information cut, and organization definition is as follows:
Wherein measResultUEExpectGERAN is used for carrying UE and wishes the HNB GSM cell identity information cut, and organization definition is as follows:
Definition by said structure makes UE after the purpose home base station cells that decision-making goes out to switch, fill in the information reportings such as cell ID, measurement result to macro base station in the structure of correspondence according to the type of home base station cells, macro base station can switch according to the purpose cell ID that comprises in measurement report.
Switched system disclosed by the invention can be divided into following components on structure:
The X2 interface resource management module is used at macro base station, the X2 interface resource being divided into static part and dynamic part, and static part is used for setting up macrocell and connects to the X2 between macrocell; Dynamic part is used for setting up macrocell and connects to the X2 between family's base station cell;
Measure reporting module, be positioned at user terminal (UE), be used for neighbor cell is measured, the home base station cells that switches to is wished in decision-making; If satisfy to measure report condition, send to macro base station and carry the measurement report of wishing the home base station cells sign that switches to;
Handover module is positioned at macro base station, is used for after the measurement report that receives user terminal (UE), and the cell ID of wishing the home base station cells that switches to according to the UE that carries in measurement report is carried out and switched.
After handover module receives the measurement report of UE at macro base station, the cell ID of wishing the home base station cells that switches to according to the UE that carries in measurement report uses the dynamic part of X2 resource to set up macrocell to be connected with X2 between home base station cells, then to trigger the switching flow based on X2 interface; Or handover module is after receiving the measurement report of UE, and the cell ID of wishing the home base station cells that switches to according to the UE that carries in measurement report triggers the switching flow based on the S1 interface.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.
Claims (8)
1. a macrocell to the changing method of family's base station cell, is characterized in that, comprising:
Carry UE and wish that the home base station cells that switches to identifies in the measurement report that user terminal (UE) reports;
Receive the measurement report of UE at macro base station after, macro base station uses the dynamic part of X2 resource to set up macrocell according to the cell ID of described home base station cells to be connected with X2 between described home base station cells, then to trigger the switching flow based on X2 interface;
Wherein, described X2 interface resource is divided into static part and dynamic part, and static part is used for setting up macrocell and connects to the X2 between macrocell; Dynamic part is used for setting up macrocell and connects to the X2 between family's base station cell.
2. method according to claim 1, is characterized in that, the switching of using the dynamic part of X2 resource to be accomplished to described home base station cells at macro base station discharges the link of the X2 interface of foundation afterwards.
3. method according to claim 1, is characterized in that, receive the measurement report of UE at macro base station after, the cell ID of the described home base station cells of macro base station foundation triggers the switching flow based on the S1 interface.
4. method according to claim 1, it is characterized in that, the measurement report that described UE reports refers to UE is expanded to the measurement report that macro base station reports, and carries at least the cell identity information that UE wishes the home base station cells cut in described measurement report.
5. a macrocell to the switched system of family's base station cell, is characterized in that, comprising:
Measure reporting module, be positioned at user terminal (UE), be used for neighbor cell is measured, the home base station cells that switches to is wished in decision-making; If satisfy to measure report condition, report to macro base station and carry the measurement report of wishing the home base station cells sign that switches to;
Handover module, be positioned at macro base station, be used for after the measurement report that receives user terminal (UE), the cell ID of wishing the home base station cells that switches to according to the UE that carries in measurement report uses the dynamic part of X2 resource to set up macrocell to be connected with X2 between home base station cells, then to trigger the switching flow based on X2 interface;
The X2 interface resource management module is used at macro base station, the X2 interface resource being divided into static part and dynamic part, and static part is used for setting up macrocell and connects to the X2 between macrocell; Dynamic part is used for setting up macrocell and connects to the X2 between family's base station cell.
6. system according to claim 5, is characterized in that, the switching that described handover module is accomplished to described home base station cells at the dynamic part that uses the X2 resource discharges the link of the X2 interface of foundation afterwards.
7. system according to claim 5, is characterized in that, described handover module is after receiving the measurement report of UE, and the cell ID of wishing the home base station cells that switches to according to the UE that carries in measurement report triggers the switching flow based on the S1 interface.
8. system according to claim 5, is characterized in that, described system expands the measurement report that UE reports, and carries at least the cell identity information that UE wishes the home base station cells cut in described measurement report.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910091990 CN102014421B (en) | 2009-09-04 | 2009-09-04 | Method and system for switching macro cell to home base station cell |
| PCT/CN2010/074348 WO2011026366A1 (en) | 2009-09-04 | 2010-06-23 | Method and system for handover from macro cell to home node b cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910091990 CN102014421B (en) | 2009-09-04 | 2009-09-04 | Method and system for switching macro cell to home base station cell |
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| Publication Number | Publication Date |
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| CN102014421A CN102014421A (en) | 2011-04-13 |
| CN102014421B true CN102014421B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910091990 Expired - Fee Related CN102014421B (en) | 2009-09-04 | 2009-09-04 | Method and system for switching macro cell to home base station cell |
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| Country | Link |
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| CN (1) | CN102014421B (en) |
| WO (1) | WO2011026366A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883440B (en) | 2011-07-15 | 2015-11-25 | 华为技术有限公司 | A kind of wireless broadband communication method, device and system |
| CN102917422B (en) * | 2011-08-05 | 2017-04-12 | 中兴通讯股份有限公司 | Switching method for switching to home base station and base station |
| US9479978B2 (en) | 2011-10-18 | 2016-10-25 | Broadcom Corporation | Method for determining a handover between a macrocell and a femtocell |
| US9603087B2 (en) * | 2011-10-18 | 2017-03-21 | Broadcom Corporation | Green femtocells and methods of implementing the same |
| WO2012167547A1 (en) * | 2011-11-11 | 2012-12-13 | 华为技术有限公司 | Method for the handover between base-stations, base-station and comunication system |
| CN103220815B (en) * | 2012-01-18 | 2019-02-15 | 中兴通讯股份有限公司 | A kind of inter-base station interface connection method for building up and device |
| CN103220742A (en) * | 2013-05-02 | 2013-07-24 | 天津大学 | Switching method between macro site and femtocell in LTE (Long Term Evolution) system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101365172A (en) * | 2007-08-10 | 2009-02-11 | 中兴通讯股份有限公司 | Precisely positioning method for user under household base station |
| CN101466125A (en) * | 2008-12-10 | 2009-06-24 | 上海华为技术有限公司 | Switch processing method, household base station gateway and network system |
| CN101521870A (en) * | 2008-02-28 | 2009-09-02 | 三星电子株式会社 | Method for supporting movement of UE between macro cells and HNB cells |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100973427B1 (en) * | 2007-06-29 | 2010-08-02 | 삼성전자주식회사 | Apparatus and method for supporting handover between home cell and macro cell in wireless communication system |
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- 2009-09-04 CN CN 200910091990 patent/CN102014421B/en not_active Expired - Fee Related
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101365172A (en) * | 2007-08-10 | 2009-02-11 | 中兴通讯股份有限公司 | Precisely positioning method for user under household base station |
| CN101521870A (en) * | 2008-02-28 | 2009-09-02 | 三星电子株式会社 | Method for supporting movement of UE between macro cells and HNB cells |
| CN101466125A (en) * | 2008-12-10 | 2009-06-24 | 上海华为技术有限公司 | Switch processing method, household base station gateway and network system |
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| Publication number | Publication date |
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| CN102014421A (en) | 2011-04-13 |
| WO2011026366A1 (en) | 2011-03-10 |
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Effective date of registration: 20171214 Address after: 518000, two 703A, COFCO business park, two Xian Xian Road, Xin'an, Shenzhen, Guangdong, Baoan District Patentee after: Shenzhen Fu Hai Sunshine Technology Co., Ltd. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corporation |
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