CN101754308A - Switching mode selecting method, base station and system - Google Patents
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Abstract
The present invention discloses a switching mode selecting method, a base station and a system. The method comprises: obtaining serving mobility management entity (MME) group identification ID information corresponding to neighbouring cells or the tracing area of the neighbouring cells; selecting switching modes according to the serving MME group ID information. In the embodiment of the present invention, the switching efficiency and the user feeling are improved by obtaining serving MME group ID information corresponding to neighbouring cells or the tracing area of the neighbouring cells based on the information selection switching modes.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, a base station, and a system for selecting a handover mode.
Background
The Long Term Evolution (LTE) project is the Evolution of the third Generation (3rd Generation, 3G) network, which improves and enhances the air access technology of the 3G network, and adopts Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO) as the only standards for wireless network Evolution. The peak rates of 100Mbit/s at the downlink and 50Mbit/s at the uplink can be provided under the 20MHz spectrum bandwidth. The performance of cell edge users is improved, the cell capacity is improved and the system delay is reduced.
In the prior art, when an X2 application layer protocol is established between two base stations, a registration procedure is first required to exchange information of the base stations and subordinate cells of both base stations. In the registration procedure, the "X2 setup request" and "X2 setup response" messages respectively carry information of evolved NodeB (eNB) 1 and eNB2 and related information of their subordinate cells, and these messages include Mobility Management Entity (MME) pool (Identity, ID) Identity (Identity, ID) to which the eNB is connected.
In the LTE system, if cells under two base stations are adjacent to each other and have a handover relationship, because the resource consumed by the handover of the X2 interface is less, the base station will prefer the handover of the X2 interface, that is, the handover between different base stations in the same MME. However, in some scenarios, because the serving MME groups of the two cells are different, an S1 interface handover mode must be selected, that is, handover between different MME groups is involved, and X2 interface handover cannot be adopted, but the existing standard cannot judge whether the X2 interface handover mode can be selected for handover between the two cells, thereby causing handover failure and seriously affecting user experience.
Disclosure of Invention
The embodiment of the invention provides a switching mode selection method, a base station and a system, which improve switching efficiency.
In one aspect, an embodiment of the present invention provides a method for selecting a handover mode, where the method includes:
acquiring a serving mobility management entity pool identifier (servingMME Group ID) information corresponding to a neighboring cell or a tracking area where the neighboring cell is located;
and selecting a switching mode according to the Serving MME Group ID information.
On the other hand, an embodiment of the present invention further provides a method for selecting a handover mode, including:
determining a target cell to which user equipment is to be switched;
and if the Serving MMEGroup list corresponding to the target cell or the tracking area where the target cell is located does not contain the Serving MME Group ID of the source cell where the user equipment is located, selecting an S1 interface switching mode.
On the other hand, an embodiment of the present invention further provides a base station, where the base station includes:
an information acquisition unit, configured to acquire Serving MME Group ID information corresponding to a neighboring cell or a tracking area in which the neighboring cell is located;
and the selecting unit is used for selecting a switching mode according to the Serving MME Group ID information acquired by the information acquiring unit.
On the other hand, an embodiment of the present invention further provides a network system, where the system includes a base station, configured to obtain, from the OAM, Serving MME Group ID information corresponding to a neighboring cell or a tracking area where the neighboring cell is located, and select a handover mode according to the Serving MME Group ID information.
In the embodiment of the invention, the switching efficiency and the user experience are improved by acquiring the Serving MMEGroup ID information corresponding to the adjacent cell or the tracking area where the adjacent cell is located and selecting the switching mode according to the information.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a first embodiment of a handover mode selection method according to the present invention;
fig. 2 is a flowchart illustrating a switching manner selecting method according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a switching method selecting method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second embodiment of the network system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without inventive step, are within the scope of the invention as claimed.
Fig. 1 is a schematic flow chart of a first embodiment of a handover mode selection method of the present invention, as shown in fig. 1, the method includes:
101, acquiring a neighboring cell or service MME Group ID information corresponding to a tracking area where the neighboring cell is located;
in this embodiment, the neighboring cell refers to a neighboring cell of each cell under the eNB.
And 102, selecting a switching mode according to the obtained Serving MME Group ID information.
In the embodiment of the invention, the switching efficiency and the user experience are improved by acquiring the Serving MMEGroup ID information corresponding to the adjacent cell or the tracking area where the adjacent cell is located and selecting the switching mode according to the information.
Fig. 2 is a flowchart illustrating a switching manner selection method according to a second embodiment of the present invention, and as shown in fig. 2, the method includes:
and 201, acquiring Serving MME Group ID information corresponding to the neighbor cell or the tracking area where the neighbor cell is located, wherein the Serving MME Group ID information comprises a Serving MME Group list.
In this embodiment, Serving MME Group ID information corresponding to a neighboring cell or a tracking area where the neighboring cell is located may be obtained from Operation Administration and Maintenance (OAM), for example, obtained from a Network Management System (NMS) or an Element Management System (EMS) in the OAM; in addition, Serving MME Group ID information corresponding to the neighbor cell or the tracking area of the neighbor cell can be obtained through the base station of the neighbor cell.
Further, the manner of obtaining the ServingMME Group ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located by the base station to which the neighboring cell belongs may be:
obtaining the data through an X2 interface establishment message (X2 Setup Requset/X2 Setup Response); or
And obtaining the data through an X2 interface Update message (eNB Configuration Update/eNB Configuration Update acknowledgement).
In this embodiment, the X2 Setup Request message carries a list of serving MME pools to which the cell under eNB1 belongs; eNB2 carries the list of serving MME pools to which the cell under eNB2 belongs in the X2 Setup Response message returned to eNB 1. Or after the information of the eNB1 is changed, the eNB Configuration Update message carries a list of serving MME pools to which the cell updated by the eNB1 belongs; eNB2 carries the Response value in the X2 Setup Response message returned to eNB 1. In these messages, since Serving MME Group ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located needs to be transferred on the X2 interface, the existing message needs to be modified.
Taking the "X2 Setup Request" message as an example, table 1 is a structure table of the modified "X2 Setup Request" message, and the information related to the original "GU Group Id List" and "GU Group Id" is deleted from the table, as shown in table 1, or the information may not be deleted.
The X2 Setup Request message is used for eNB1 to communicate initialization information for transport network layer interaction to eNB 2.
| IE/Group Name | Presence Presence | Range | IE type and reference IE type andreference | Semantic description | Critical Criticality of crisality | Specifying a threshold AssignedCriticality |
| Message Type | M | 9.2.15 | Is YES | Reject | ||
| Global eNB identity Global eNB ID | M | 9.2.24 | Is YES | Reject | ||
| |
1 tomaxCellineNB | This is all theeNB cells | Is YES | Reject | ||
| Serving cell information Served CellInformation | M | 9.2.10 | - | - | ||
| Neighbor cell information | 0 tomaxnoofNeighbours | - | - | |||
| Global cell identity ECGI | M | ECGI9.2.16 | E-UTRAN CellGlobalIdentifier of theneighbour cell | - | - |
| IE/Group Name | Presence Presence | Range | IE type and reference IE type andreference | Semantic description | Critical Criticality of crisality | Specifying a threshold AssignedCriticality |
| Physical cell identity PCI | M | INTEGER INTEGER (1.. 504.,) | Physical CellIdentifier of theneighbour cell | - | - |
TABLE 1
Table 2 is a structure table of the subordinate Cell Information (Served Cell Information) in table 1, and the configuration Information of the neighboring eNB Cell required for transmission on the X2 interface is shown in table 2, to which a related Information item of "GU Group Id" is added.
| IE/Group Name | Presence Presence | Range | IE type and reference IE type andreference | Semantic description | Critical Criticality of crisality | Specifying a threshold AssignedCriticality |
| Physical cell identity PhyCID | M | INTEGER(1..504，...) | Physical CellID | - | - | |
| Cell identity Cell ID | M | ECGI9.2.16 | - | - | ||
| Tracking area code TAC | M | 8-bit string OCTETSTRING | TrackingArea Code | - | - | |
| Mobility management entity pool identity GU Group Id | M | 9.2.22 | - | - | ||
| Broadcast universal land mobile network |
1..<maxnoofBPLMNs> | BroadcastPLMNs | - | - | ||
| PLMN Identity | M | 9.2.6 | - | - |
TABLE 2
After the eNB acquires the Serving MME Group ID information corresponding to the neighbor cell or the tracking area where the neighbor cell is located, if UE (user equipment) in the eNB needs to be switched, the eNB determines a target cell for the UE according to the existing method, and then executes the following steps:
202, judging whether a target cell and a source cell where the UE is currently located belong to the same base station; if the judgment result is yes, executing 203, and if the judgment result is no, executing 204;
203, judging whether the service MME Group list of the target cell contains the service MME Group identification of the source cell where the current user equipment is located, if so, executing 205, and if not, executing 206;
204, judging whether X2 connection exists between the base stations of the target cell and the source cell; if the judgment result is yes, executing 207, and if the judgment result is no, executing 206;
205, selecting a switching mode in the base station;
206, selecting an S1 interface switching mode;
207, judging whether the MME Group list of the target cell contains the service MME Group identification of the source cell where the current user equipment is located, if so, executing 208, and if not, executing 206;
208, selecting an X2 interface switching mode.
In the second embodiment of the method of the present invention, the order of the judgment processes of 202, 203, 204 can be exchanged, that is, it is assumed that the definition condition one, the target cell and the source cell belong to the same base station; secondly, the MMEGroup list of the target cell comprises a service MME Group identification of a source cell where the current user equipment is located; and in the third condition, X2 connection exists between the base stations of the target cell and the source cell. Then, when the first condition and the second condition are met, selecting a switching mode in the base station; when the condition one is met and the condition two is not met, selecting an S1 interface switching mode; when the condition one is not met and the condition three is not met, selecting an S1 interface switching mode; and when the first condition and the second condition are not met but the third condition is met, selecting the X2 interface switching mode, and when the first condition and the second condition are not met but the third condition is met, selecting the S1 interface switching mode.
In the second embodiment of the method, the Serving MME Group ID information corresponding to the adjacent cell or the tracking area where the adjacent cell is located is obtained, and the switching mode is selected according to the information, so that the switching efficiency and the user experience are improved.
Fig. 3 is a flowchart illustrating a switching manner selection method according to a third embodiment of the present invention, and as shown in fig. 3, the method includes:
301, obtaining a Serving MME Group ID information corresponding to the neighbor cell or the tracking area where the neighbor cell is located.
In this embodiment, the Serving MME Group ID information includes an MME Group list; the description of the process of obtaining Serving MME Group ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located may be detailed in the related description of 201 in the first embodiment of the foregoing method, and is not repeated here.
After the eNB acquires the Serving MME Group ID information corresponding to the neighbor cell or the tracking area where the neighbor cell is located, if UE (user equipment) in the eNB needs to be switched, the eNB determines a target cell for the UE according to the existing method, and then executes the following steps:
302, judging whether the target cell and the source cell belong to the same base station; if the judgment result is yes, executing 303, and if the judgment result is no, executing 304;
303, judging whether the MME Group list of the target cell includes a serving MME Group identity of the source cell where the current user equipment is located, if so, executing 305; if the judgment result is no, 307 is executed;
304, judging whether the MME Group list of the target cell contains the service MME Group identification of the source cell where the current user equipment is located, if so, executing 306, and if not, executing 307;
305, selecting a switching mode in a base station;
306, judging whether X2 connection exists; if there is an X2 connection, then 308 is performed; if there is no X2 connection, then 309 is performed; in a specific implementation, when it is determined that no X2 connection exists, the S1 interface switching mode may be directly selected without executing 309;
307, selecting an S1 interface switching mode;
308, selecting an X2 interface switching mode;
309, establishing an X2 interface, and judging whether the X2 interface is established successfully; if successful, 308 is performed, and if failed, 307 is performed.
In the third embodiment of the method of the present invention, the order of the determination processes 302, 303, and 304 may be changed, that is, it is assumed that the definition condition one, the target cell and the source cell belong to the same base station; secondly, the MMEGroup list of the target cell comprises a service MME Group identification of a source cell where the current user equipment is located; and in the third condition, X2 connection exists between the base stations of the target cell and the source cell. And when the first condition and the third condition are not met and the second condition is met, establishing an X2 interface with the base station to which the adjacent cell belongs, if the X2 interface is successfully established, selecting an X2 interface switching mode, and otherwise, selecting an S1 interface switching mode.
In the third embodiment of the method of the present invention, the Serving MME Group ID information corresponding to the neighboring cell or the tracking area in which the neighboring cell is located is obtained, and the switching manner is selected according to the information, so that the switching efficiency and the user experience are improved.
The embodiment of the invention also provides a network system which comprises a base station and a switching mode selection module, wherein the base station is used for acquiring Serving MME Group ID information corresponding to the adjacent cell or the tracking area of the adjacent cell from the OAM or the base station to which the adjacent cell belongs, and selecting the switching mode according to the Serving MME Group ID information.
Further, when the base station acquires information from the base station to which the neighboring cell belongs, the base station is configured to acquire the information through an X2 interface setup message or an X2 interface update message.
Further, referring to a schematic structural diagram of a base station shown in fig. 4 according to an embodiment of the present invention, the base station includes: the information acquiring unit 41 is configured to acquire Serving mmedrop ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located, and the selecting unit 42 is configured to select a switching mode according to the Serving MME Group corresponding to the neighboring cell or the tracking area where the neighboring cell is located acquired by the information acquiring unit 41.
In a specific implementation, the information obtaining unit 41 is configured to obtain Serving MME Group ID information corresponding to a neighboring cell or a tracking area where the neighboring cell is located from OAM, for example, obtain from NMS or EMS in OAM; or, the information obtaining unit 41 may be further configured to obtain Serving MME Group ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located, through the base station to which the neighboring cell belongs. The Serving MME Group ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located, which is acquired by the information acquiring unit 41, may include an MME Group list corresponding to the neighboring cell or the tracking area where the neighboring cell is located.
Further, when the information obtaining unit 41 is configured to obtain Serving MME Group ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located through the base station to which the neighboring cell belongs, the information obtaining unit 41 may obtain the Serving MME Group ID information through an X2 interface setup message; or in an update message via the X2 interface.
In this embodiment, the X2 Setup Request message carries a list of serving MME pools to which the cell under eNB1 belongs; eNB2 carries the list of serving MME pools to which the cell under eNB2 belongs in the X2 Setup Response message returned to eNB 1. Or after the information of the eNB1 is changed, the eNB Configuration Update message carries a list of serving MME pools to which the cell updated by the eNB1 belongs; eNB2 carries the Response value in the X2 Setup Response message returned to eNB 1. In these messages, since Serving MME Group ID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located needs to be transferred on the X2 interface, the existing message needs to be modified. The specific implementation is as described in the second embodiment 201 of the method of the present invention, and is not described herein again.
Further, after the base station acquires the Serving MME group pID information corresponding to the neighboring cell or the tracking area where the neighboring cell is located, if the UE in the base station needs to be switched, the base station determines a target cell for the UE according to the existing method, at this time,
further, it is assumed that the definition condition one is specifically: the target cell and the source cell where the current user equipment is located belong to the same base station; the second condition is specifically as follows: the MME Group list of the target cell comprises the serving MME Group identification of the current source cell; the third condition is specifically as follows: an X2 connection exists between the base station to which the target cell and the source cell belong.
The selecting unit 42 is specifically configured to select an intra-base station handover mode when the first condition and the second condition are satisfied; the switching method is also used for selecting an S1 interface switching mode when the condition I is met and the condition II is not met; the switching method is also used for selecting an S1 interface switching mode when the condition I is not met and the condition III is not met; the switching method is also used for selecting the X2 interface switching mode when the condition I is not met but the condition II and the condition III are met; the switching method is also used for selecting the interface switching mode of S1 when the condition I and the condition II are not met but the condition III is met;
optionally, the base station may further include:
an interface establishing unit 43, configured to initiate a procedure of establishing an X2 interface to a base station to which an adjacent cell belongs when the first condition and the third condition are not met, and the second condition is met;
if the X2 interface is successfully established, the selecting unit 42 selects the X2 interface switching mode;
otherwise, the selection unit 42 selects the interface switching manner of S1.
In the embodiment of the invention, the switching efficiency and the user experience are improved by acquiring the Serving MMEGroup ID information corresponding to the adjacent cell or the tracking area where the adjacent cell is located and selecting the switching mode according to the information.
Fig. 5 is a schematic structural diagram of a second embodiment of the network system of the present invention, which is described as follows, as shown in fig. 5:
the MME Group1 supports TA1, the MME Group2 supports TA2, TA1 includes cell a and cell B, TA2 includes cell C and cell D, eNB1 includes cell a, and eNB2 includes two cells: cell B and cell C.
Since two cells B and C of the eNB2 belong to TA1 and TA2, respectively, and the MME Group1 supports TA1 and the MME Group2 supports TA2, the eNB2 needs to have S1 connection with the MME Group1 and the MME Group 2.
The following describes a handover scenario between two cells.
in this scenario, the cell a and the cell B belong to different enbs, the eNB1 to which the cell a belongs determines whether an X2 connection exists between the cell a and the base station eNB2 to which the cell B belongs, if not, an S1 interface switching manner is selected, and if so, the eNB1 determines whether a Serving MME Group list of the cell B includes a Serving MME Group identifier corresponding to the UE to which the UE is switched in the cell a.
Scene 2, user equipment switches from cell B to cell C:
in this scenario, since cell B and cell C belong to the same eNB2, it is not necessary to determine whether an X2 connection exists between the eNB2 to which the cell B belongs and the eNB2 to which the cell C belongs, and the eNB2 determines whether the Serving MME Group list of the cell C includes the Serving MME Group identifier of the UE that is currently switched in the cell B according to the Serving MME Group list corresponding to the supported TA.
Scene 3, switching the user equipment from cell a to cell C:
in this scenario, since the cell a and the cell C belong to different enbs, the eNB1 to which the cell a belongs determines whether an X2 connection exists between the cell a and the eNB2 to which the cell C belongs, and if not, an S1 interface switching is selected, and if so, the eNB1 determines whether the Serving MME Group ID of the cell C includes an identifier of the Serving MME Group1 corresponding to the cell a to which the UE is currently switched.
In summary, when the UE is handed over from the source cell to the target cell, the base station to which the source cell belongs determines whether the Serving MME Group list of the target cell includes the Serving MME Group ID corresponding to the source cell to which the UE is handed over, and if not, selects the interface handover mode of S1.
In the embodiment of the invention, the switching efficiency and the user experience are improved by acquiring the Serving MMEGroup ID information corresponding to the adjacent cell or the tracking area where the adjacent cell is located and selecting the switching mode according to the information.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary hardware platform, and may also be implemented by hardware entirely. With this understanding in mind, all or part of the technical solutions of the present invention that contribute to the background can be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods according to the embodiments or some parts of the embodiments of the present invention.
It should be understood that the above-described embodiments are merely exemplary of the present invention, which should not be considered as limiting the scope of the invention.
Claims (12)
1. A method for selecting a handover mode, the method comprising:
acquiring a serving mobility management entity pool identifier (servingMME Group ID) information corresponding to a neighboring cell or a tracking area where the neighboring cell is located;
and selecting a switching mode according to the Serving MME Group ID information.
2. The method of claim 1, wherein the obtaining Serving MME Group ID information corresponding to the neighboring cell or the tracking area in which the neighboring cell is located comprises:
acquiring the Serving MME Group ID information from operation, administration and maintenance (OAM); or,
and acquiring the Serving MME Group ID information through the base station to which the neighbor cell belongs.
3. The method of claim 1, wherein the selecting a switching mode according to the Serving MMEGroup ID information comprises:
when the first condition and the second condition are met, selecting a switching mode in the base station; or,
when the first condition is met and the second condition is not met, selecting an S1 interface switching mode; or,
when the condition one is not met and the condition three is not met, selecting an S1 interface switching mode; or,
when the condition one is not met but the condition two and the condition three are met, selecting an X2 interface switching mode; or,
when the first condition and the second condition are not met but the third condition is met, selecting an S1 interface switching mode;
the first condition is specifically as follows: a target cell to which user equipment is to be switched and a source cell in which the user equipment is currently located belong to the same base station;
the second condition is specifically as follows: the MME Group list of the target cell comprises the service MME Group identification of the source cell;
the third condition is specifically as follows: and an X2 connection is formed between the target cell and the base station to which the source cell belongs.
4. The method of claim 3, wherein the selecting a switching manner according to the Serving MMEGroup ID information further comprises:
and when the first condition and the third condition are not met and the second condition is met, initiating the establishment of an X2 interface to the base station to which the adjacent cell belongs, if the establishment of the X2 interface is successful, selecting an X2 interface switching mode, otherwise, selecting an S1 interface switching mode.
5. The method of claim 2, wherein the obtaining the Serving MME Group ID information by the base station to which the neighboring cell belongs comprises:
and establishing a message through an X2 interface or updating the message acquisition through an X2 interface.
6. A method for selecting a handover mode, comprising:
determining a target cell to which user equipment is to be switched;
and if the Serving MMEGroup list corresponding to the target cell or the tracking area where the target cell is located does not contain the Serving MME Group ID of the source cell where the user equipment is located, selecting an S1 interface switching mode.
7. A base station, characterized in that the base station comprises:
an information acquisition unit, configured to acquire Serving MME Group ID information corresponding to a neighboring cell or a tracking area in which the neighboring cell is located;
and the selecting unit is used for selecting a switching mode according to the Serving MME Group ID information acquired by the information acquiring unit.
8. The base station of claim 7, wherein the information obtaining unit is configured to obtain the Serving MME Group ID information from operation, administration and maintenance, OAM, or is configured to obtain the Serving MME Group ID information through the base station to which the neighboring cell belongs.
9. The base station of claim 7, wherein the selecting unit is configured to select an intra-base station handover mode when conditions one and two are satisfied; or,
the switching method is also used for selecting an S1 interface switching mode when the first condition is met and the second condition is not met; or,
the switching method is also used for selecting an S1 interface switching mode when the condition I is not met and the condition III is not met; or,
the switching method is also used for selecting an X2 interface switching mode when the condition one is not met but the conditions two and three are met; or,
the switching method is also used for selecting an S1 interface switching mode when the condition I and the condition II are not met but the condition III is met;
the first condition is specifically as follows: a target cell to which user equipment is to be switched and a source cell in which the user equipment is currently located belong to the same base station;
the second condition is specifically as follows: the MME Group list of the target cell comprises the service MME Group identification of the source cell;
the third condition is specifically as follows: and an X2 connection is formed between the target cell and the base station to which the source cell belongs.
10. The base station of claim 9, wherein the base station further comprises:
an interface establishing unit, configured to initiate establishment of an X2 interface to a base station to which an adjacent cell belongs when the condition one and the condition three are not satisfied but the condition two is satisfied;
if the X2 interface is successfully established, the selection unit selects an X2 interface switching mode;
otherwise, the selection unit selects an S1 interface switching mode.
11. The base station of claim 8, wherein the information obtaining unit is further configured to obtain through an X2 interface setup message or an X2 interface update message.
12. A network system is characterized in that the system comprises a base station and a switching mode selection module, wherein the base station is used for acquiring Serving MMEGroup ID information corresponding to a neighboring cell or a tracking area where the neighboring cell is located from OAM, and selecting the switching mode according to the Serving MME Group ID information.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118808A (en) * | 2011-03-03 | 2011-07-06 | 电信科学技术研究院 | Method for triggering switching and transferring identification information of mobile management entity pool and equipment |
| WO2011144145A1 (en) * | 2010-06-28 | 2011-11-24 | 华为技术有限公司 | Switch method, communications device and communications system |
| WO2011160485A1 (en) * | 2010-06-21 | 2011-12-29 | 华为技术有限公司 | Handover processing method and relay node |
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| WO2012019467A1 (en) * | 2010-08-10 | 2012-02-16 | 中兴通讯股份有限公司 | Method for obtaining interface information of neighbor evolved nodeb/relay node, and wireless relay system |
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| CN101212810B (en) * | 2006-12-27 | 2012-04-25 | 华为技术有限公司 | Customer premise equipment switching method in radio network |
| CN101299876B (en) * | 2007-04-30 | 2011-07-06 | 华为技术有限公司 | Synchronisation method, communication switching method, wireless network and node |
| CN101188861B (en) * | 2007-07-06 | 2010-06-02 | 中兴通讯股份有限公司 | Switching method inside the system |
| CN101128057B (en) * | 2007-09-27 | 2012-04-04 | 中兴通讯股份有限公司 | Optimization method for base station switching |
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