WO2012171394A1 - 一种基于x2接口的csg小区切换方法及其装置 - Google Patents
一种基于x2接口的csg小区切换方法及其装置 Download PDFInfo
- Publication number
- WO2012171394A1 WO2012171394A1 PCT/CN2012/073382 CN2012073382W WO2012171394A1 WO 2012171394 A1 WO2012171394 A1 WO 2012171394A1 CN 2012073382 W CN2012073382 W CN 2012073382W WO 2012171394 A1 WO2012171394 A1 WO 2012171394A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- user equipment
- cell
- target base
- access
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
-
- 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
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a CSG cell switching method based on an X2 interface and an apparatus therefor. Background technique
- the LIPA (Local IP Access) technology was originally proposed based on the Home (enhanced) Node B (H(e)NB) network, which means that the user's service flow data is directly from the H(e)NB. Access is made without going through the carrier's core network.
- the feature of LIPA technology is that data can be accessed through H(e)NB to the home or enterprise intranet without the need to transfer data through the carrier network.
- the UE User Equipment, User Equipment
- the UE User Equipment, User Equipment
- a local H(e)NB network consists of a set of H(e)NBs and an IP connection to the set of H(e)NBs to the local PDN (Public Data Network) for LIPA. Or multiple L-GWs (Local-GateWay, local gateway); (2) one H(e)NB can belong to only one local H(e)NB network;
- An L-GW can only belong to one local H(e)NB network
- One L-GW can access one or more PDNs, and one PDN can be accessed through multiple local H(e)NB networks;
- H(e)NBs of the same H(e)NB network may have different CSGs (Closed Subscribe Group, closed subscriber group);
- a CSG may consist of H(e)NB of the local H(e)NB network and H(e)NB outside the local H(e)NB network.
- Whether the UE can access a certain CSG cell is determined by the subscription information.
- the core network needs to determine whether the UE can access the CSG cell according to the subscription information.
- the X2 interface is the interface between the base stations
- the core network does not participate in the handover process, but waits until the handover is completed.
- the target base station sends a path handover procedure to the MME to update the tunnel address and other information between the base station and the core network.
- the access-related information of the UEs stored in the base station is only the list of the restricted public access mobile network id (Public Land Mobile Network id), and the restricted access TAI (Tracking Area Identity). And does not save the CSG information that the UE is allowed to access and whether it is allowed to initiate a certain LIPA connection in a certain CSG.
- the information about the CSG list that the UE is allowed to access and the information about whether to enable the LIPA are not stored in the base station. Therefore, the source base station cannot accurately determine whether the UE can allow access to the target H(e)NB during the handover process, only after the handover is completed. When the path switching process occurs, it is judged by the MME (Mobile Management Entity). If this When the MME determines that the UE cannot access the target cell, the UE will be denied access to the ' ⁇ !, zone, which wastes network resources, and may cause the UE's bearer connection to be broken, which affects service continuity.
- MME Mobile Management Entity
- the embodiment of the present invention provides a CSG cell handover method based on an X2 interface and a device thereof, which are used to solve the problem of large network resource overhead when performing CSG inter-cell handover based on an X2 interface.
- the method for switching the CSG cell based on the X2 interface includes: before the source base station initiates the handover request to the target base station, the source base station sends a request message to the core network device, where the target base station cell CSG identifier is carried, to request the core network device. Determining whether the user equipment is allowed to access the corresponding target base station cell;
- the source base station receives the response message returned by the core network device, and carries the judgment result information, and when the judgment result is that the user equipment is allowed to access the target base station cell, initiates a handover request to the corresponding target base station to perform the X2 interface-based Switch.
- the Query Module is configured to send, when the local base station is the source base station, a request message to the core network device, where the target base station cell CSG identifier is carried, to request the core network device to determine whether the user is allowed to be allowed.
- the device accesses the corresponding target base station cell;
- a receiving module configured to receive a response message returned by the core network device, where the base station is used as a source base station, where the judgment result information is carried;
- a switching module configured to initiate a handover request to the corresponding target base station to perform the X2 interface-based handover when the judgment result is that the user equipment is allowed to access the target base station area.
- a method for switching a CSG cell based on an X2 interface includes:
- the core network device receives a request message sent by the source base station before initiating a handover request to the target base station, where the target base station cell CSG identifier is carried; The core network device determines, according to the request message, whether the user equipment is allowed to access the corresponding target base station cell;
- the core network device returns a response message to the source base station, where the judgment result information is carried.
- a receiving module configured to receive a request message sent by the source base station before initiating a handover request to the target base station, where the target base station cell CSG identifier is carried;
- a determining module configured to determine, according to the request message, whether the user equipment is allowed to access the corresponding target base station cell
- a sending module configured to return a response message to the source base station, where the judgment result information is carried.
- the identifier of the target CSG cell is first sent to the core network device, to request the core network device to determine whether the user equipment is allowed to access the target CSG cell, and When the core network device determines that access is allowed, the handover process to the target CSG cell is initiated. Compared with the technical solutions in the prior art that the core network device does not participate in the handover process, the network overhead is saved.
- An X2 interface-based CSG cell handover method provided by another embodiment of the present invention includes:
- the base station device After the user equipment is accessed, the base station device obtains subscription information of the user equipment in the neighboring CSG cell from the core network device.
- the base station When the base station needs to switch the user equipment to the target base station, determine, according to the subscription information of the user equipment in the neighboring CSG cell, whether the target base station cell allows the user equipment to access, and if the determination is yes Next, perform switching based on the X2 interface.
- a determining module configured to: when the base station needs to switch the user equipment to the target base station, determine, according to the subscription information of the user equipment in the neighboring CSG cell, whether the target base station cell allows the user equipment to access; a switching module, configured to perform execution based on the determination module being YES
- the base station after the user equipment accesses, the base station queries the core network device for the subscription information of the user equipment in the adjacent CSG cell, so that when the user equipment performs the CSG inter-cell handover based on the X2 interface,
- the source base station may determine, according to the subscription information of the user equipment that is obtained from the core network device in the neighboring CSG cell, whether the user equipment is allowed to access the target CSG cell, and if the source base station determines that the access is allowed,
- the handover process initiated to the target CSG cell saves network overhead compared to the prior art.
- FIG. 1 is a schematic diagram of a LIPA continuity architecture in the prior art
- FIG. 2 is a schematic diagram of a CSG cell handover procedure based on an X2 interface according to Embodiment 1 of the present invention
- FIG. 3 is a schematic diagram of a signaling flow of the process shown in FIG. 2;
- 4A is a diagram showing the use of a handover message to perform steps 201-202 in the flow shown in FIG. 2;
- FIG. 4B is a schematic diagram of performing steps 201-202 in the flow shown in FIG. 2 using a newly defined message.
- FIG. 5 is a schematic diagram of a CSG cell handover procedure based on an X2 interface according to Embodiment 2 of the present invention.
- FIG. 6 is a schematic structural diagram of a base station device according to an embodiment of the present invention
- FIG. 7 is a schematic structural diagram of a core network device according to an embodiment of the present invention
- FIG. 8 is a second schematic structural diagram of a base station device according to an embodiment of the present invention. detailed description
- the UE's LIPA continuity is maintained as the UE moves in the same local HeNB network.
- the same HeNB network may be composed of multiple HeNBs.
- the multiple HeNBs may belong to the same CSG or may belong to different CSGs.
- the network needs to perform access control according to the subscription information of the UE.
- the subscription information includes the CSG id that the UE is allowed to access and whether the LIPA is allowed to be initiated in this CSG cell. If the UE moves to a new CSG cell and the new CSG cell is not included in the subscription message of the UE, the UE cannot access the cell.
- the UE moves between two CSG cells of the same local HeNB network, since there are X2 interfaces between the two HeNBs, the X2 interface process can be performed, but since the CSG ids of the two HeNBs are different, the source HeNBs
- the CSG information that the UE is allowed to access is not saved, so the source HeNB cannot determine whether the target cell allows access by the UE. If the MME is determined to be unable to access the target cell by the path switching after the UE handover is completed, the MME may waste resources and may release the bearer connection activated by the UE.
- the embodiments of the present invention provide a mechanism for how to perform handover of an X2 interface between different CSG cells.
- the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
- This embodiment describes a process of determining, by the MME, whether the target cell is allowed to access the UE before switching based on the X2 interface.
- the UE may include information such as the measured CSG id of the target cell in the reported measurement report.
- the source H(e)NB selects the handover target cell for the UE, and if there is an X2 interface between the source H(e)NB and the target H(e)NB, but the CSG and the source of the target cell If the CSG cells of the cell are different, perform the following steps 201-203:
- Step 201 The source H(e)NB sends a message to the MME, where the message carries the CSG id of the target cell, and the MME is required to determine whether the UE can access the target cell. Enter In one step, if the UE has an active LIPA connection at this time, the MME is further required to further determine whether the currently activated LIPA PDN connection of the UE can be maintained in the target CSG cell.
- the S1 interface message sent by the source H(e)NB to the MME may be an already defined S1 interface message, such as a Handover required message.
- the current Handover required message carries the cell id and CSG id of the target cell, but the message itself is used to trigger the S1 interface switch to the MME.
- the present embodiment uses the Handover Required message to notify the MME to determine whether the UE can access the target cell, the identifier of the X2 interface switch needs to be added to the message, and the message is used to indicate to the MME that the subsequent S1 interface switch is not triggered.
- the process is to determine whether the UE is allowed to access the target cell indicated by the target cell id carried in the message. If the UE has an active LIPA connection at this time, the MME needs to further determine whether the target cell is allowed to maintain the currently activated LIPA connection.
- the source H(e)NB may also implement the step by using a redefined one or a new set of S1 interface messages. As shown in FIG. 4B, this interface message is used by the H(e)NB to query the MME whether the UE is allowed to access. Go to a CSG cell, and further whether to allow the LIPA connection to be activated in the CSG cell.
- the message sent by the source H(e)NB to the MME contains the CSG id of the cell that needs to be queried. Upon receiving this message, the MME will query whether the UE allows access to the requested CSG cell, and further whether to allow the active LIPA connection to remain in the requested CSG cell.
- Step 202 The MME determines that the UE returns a determination result to the source H(e)NB after receiving the state of the target cell, where the MME includes indication information about whether the UE allows access to the target CSG cell. Further, if the UE has an activated LIPA connection at this time, it may further include indication information that the currently activated LIPA connection of the UE can be maintained in the target cell.
- the message sent by the MME to the source H(e)NB may also reuse the already defined S1 interface message, such as a Handover command message.
- the current Handover command message is used to return the handover response to the source H(e)NB after the handover preparation is completed, including the bearer information that the target side does not successfully accept and needs to be released, and the bearer information that needs to be forwarded. If the present embodiment returns a judgment result to the source H(e)NB by using a Handover command message, the current Handover needs to be extended.
- the MME may also use the re-defined MME to the source H(e)NB query response message to return the query result to the H(e)NB, as shown in FIG. 4B, that is, whether the UE is allowed to access the target CSG cell, if this is When the UE has an active LIPA connection, it can also indicate whether the currently activated LIPA connection of the UE can be maintained.
- Step 203 If the judgment result returned by the MME is that the UE is allowed to access the target CSG cell, the source H(e)NB initiates an X2 interface handover process, and the specific handover process may be implemented in an existing manner. If the judgment returned by the MME is that the UE is not allowed to access the target CSG cell, the source H(e)NB cannot initiate a handover procedure to the target H(e)NB.
- the source base station carries the handover request message.
- the information carried by the LIPA so that the target base station allocates resources for the bearers corresponding to the continuous LIPA connection.
- the MME may delete the LIPA connection through the source service gateway after the handover is completed.
- the information of the LIPA bearer is not included in the Handover Request message sent by the source H(e)NB to the target H(e)NB, and the target H(e)NB does not allocate the bearer corresponding to the LIPA connection that cannot be consecutively maintained.
- the MME initiates a LIPA PDN connection deactivation process to delete the LIPA connection through the source service gateway.
- FIG. 3 is a schematic diagram of signaling interaction of the foregoing process, where steps 301-303 correspond to steps 201-203 of the process shown in FIG. 2, respectively.
- the embodiment of the present invention sends the identifier of the target CSG cell to the core network device before the source base station starts to switch to the target base station, to request the core network device to determine whether the UE is allowed to access the target CSG cell. And in the case that the core network device determines that access is allowed, the handover process to the target CSG cell is initiated. Compared with the technical solutions in the prior art that the core network device does not participate in the handover process, the network is saved. Overhead.
- the present embodiment describes that the H(e)NB obtains the subscription information of the UE in the adjacent CSG cell from the MME after the UE accesses the local cell, and according to the subscription information of the user in the target CSG cell when performing the handover based on the X2 interface, It is judged whether it is possible to switch to the target CSG cell.
- the H(e)NBs after establishing an X2 interface connection between adjacent H(e)NBs, the H(e)NBs can mutually transmit the CSG id of each cell. Therefore, the H(e)NB can know the CSG id information of the neighboring cell to which the X2 interface is connected.
- the cell H(e)NB After the UE successfully accesses the cell and the context information is established in the cell, the cell H(e)NB queries the MME whether the UE has a subscription in the adjacent CSG cell. It queries the subscription information of the adjacent CSG cell and performs the X2 interface-based handover procedure according to the information, as shown in FIG. 5:
- Step 501 The H(e)NB sends a UE subscription information query request message to the MME, where the CSG id that needs to be queried is carried, that is, the CSG id of the neighboring cell that has an X2 interface with the local base station.
- Step 502 After receiving the message, the MME returns an inquiry response message to the H(e)NB, where the MME carries the subscription information in the CSG requested by the UE, that is, whether the UE has signed a CSG, and the permission of the CSG. Establish an APN for the LIPA connection.
- Step 503 After the H(e)NB acquires the CSG subscription information of the UE in the neighboring cell, when the handover process to the neighboring cells is to be performed, the H(e)NB signs the subscription according to the acquired neighboring CSG cell. The information is used to determine whether the UE has a CSG subscription of the target cell, that is, whether the UE can handover to the target cell.
- Step 504 If the judgment result is that the UE is allowed to access the target CSG cell, the source H(e)NB initiates an X2 interface switching process. If the result of the judgment is that the UE is not allowed to access the target CSG cell, the source H(e)NB cannot initiate a handover procedure to the target H(e)NB.
- This step can be specifically implemented as step 203 shown in FIG.
- the base station queries the core network device for the subscription information of the UE in the adjacent CSG cell after the UE accesses, so that when the UE performs the CSG inter-cell handover based on the X2 interface, the source base station can be based on the previous The subscription information of the UE acquired by the core network device in the neighboring CSG cell, determining whether the UE is allowed to access the target CSG The cell, and when the source base station determines that the access is allowed, initiates a handover process to the target CSG cell, which saves network overhead compared with the prior art.
- H(e)NB H(e)NB
- eNB base station
- the core network device involved in the handover process is described by taking the MME as an example, but the core network device type is not limited by this.
- the embodiment of the present invention further provides a structure of a base station and a core network device.
- the base station may be an eNB or an H(e)NB.
- FIG. 6 is a schematic structural diagram of a base station applicable to the first embodiment according to an embodiment of the present invention. As shown in the figure, the base station may include:
- the querying module 601 is configured to send, after the local base station is the source base station, a request message to the core network device, where the target base station cell CSG identifier is carried, to request the core network device to determine whether to allow The user equipment accesses the corresponding target base station cell;
- the receiving module 602 is configured to receive, in the case that the local base station is the source base station, a response message returned by the core network device, where the judgment result information is carried;
- the switching module 603 is configured to: when the judgment result is that the user equipment is allowed to access the target base station cell, initiate a handover request to the corresponding target base station to perform the X2 interface-based handover.
- the response message further includes a result information that the core network device determines whether the currently activated LIPA connection of the user equipment can be maintained in the target base station cell.
- the switching module 603 is further configured to: if the response message carries the result information that the LIPA connection currently activated by the user equipment can be held in the target base station cell, the information carried by the LIPA is carried in the handover request message to enable the target The base station allocates resources for the bearer corresponding to the continuous LIPA connection; if the response message carries the result information that the LIPA connection currently activated by the user equipment cannot be maintained in the target base station cell, the LIPA bearer is not carried in the handover request message. Information.
- the request message sent by the query module 601 is a handover request message, where the handover request message carries an X2 interface switch identifier, and is used to indicate the core network device.
- the user equipment is allowed to access the target base station cell
- the response message received by the receiving module 602 is a handover command, where the indication information of whether the user equipment is allowed to access the target base station cell is carried.
- the request message sent by the query module 601 is a newly added query message, which is used to query whether the user equipment is allowed to access the target base station cell; and the response message received by the receiving module 603 is a new query response message, where The indicator information carrying whether the user equipment is allowed to access the target base station cell is carried.
- FIG. 7 is a schematic structural diagram of a core network device according to an embodiment of the present invention.
- the core network device is applicable to the first embodiment.
- the core network device may include: a receiving module 701, configured to receive a source base station. a request message sent before initiating a handover request to the target base station, where the target base station cell CSG identifier is carried;
- the determining module 702 is configured to determine, according to the request message, whether the user equipment is allowed to access the corresponding target base station cell;
- the sending module 703 is configured to return a response message to the source base station, where the judgment result information is carried.
- the determining module 702 is further configured to: if the user equipment currently has an activated local IP access LIPA connection, determine whether the currently activated LIPA connection of the user equipment is maintained in the target base station cell;
- the 703 is further configured to: return, by the response message, whether the currently activated LIPA connection of the user equipment is in the target base station, to the source base station.
- the foregoing core network device may further include a processing module 704, configured to: after the determining module 702 determines that the user equipment can access the target base station cell, but cannot maintain the currently activated LIPA connection in the target base station cell, after the handover is completed, The LIPA connection is deleted through the source service gateway.
- a processing module 704 configured to: after the determining module 702 determines that the user equipment can access the target base station cell, but cannot maintain the currently activated LIPA connection in the target base station cell, after the handover is completed, The LIPA connection is deleted through the source service gateway.
- the request message received by the receiving module 701 is a handover request message, and the handover request message carries an X2 interface switching identifier; the determining module is specifically configured to: determine, according to the X2 interface switching identifier Whether the user equipment is allowed to access the target base station cell, and the response message sent by the sending module 703 is a handover command, where the indication information of whether the user equipment is allowed to access the target base station cell is carried.
- the request message received by the receiving module 701 is a newly added query message, and the response message sent by the sending module 703 is a new query response. See FIG. 8 , which is provided by the embodiment of the present invention.
- FIG. 8 A schematic structural diagram of a base station device applicable to the second embodiment. As shown in the figure, the base station may include:
- the obtained module 801 is configured to obtain, after the user equipment is accessed, the subscription information of the user equipment in the adjacent CSG cell from the core network device.
- the determining module 802 is configured to: when the base station needs to switch the user equipment to the target base station, determine, according to the subscription information of the user equipment in the neighboring CSG cell, whether the target base station cell allows the user equipment to access;
- the switching module 803 is configured to perform a handover based on the ⁇ 2 interface when the determining module determines to be YES.
- the obtaining module 801 may send a query request message to the core network device, where the CSG identifier of the neighboring cell that has the ⁇ 2 interface connection with the base station is carried, and the query response message returned by the core network device is received.
- the subscription information of the user equipment in the corresponding neighboring cell is carried.
- the determining module 802 may determine, according to the subscription information of the user equipment in the neighboring CSG cell, that the user equipment has CSG subscription information in the target base station cell, and determine that the target base station cell allows the user. Device access.
- the embodiment of the present invention implements the handover procedure of the cell between different CSGs, and proposes a processing method of the LIPA connection in the handover process of the ⁇ 2 interface, so that the UE can perform handover through the X2 interface when moving in the same local HeNB network.
- the switching process is not required through the S1 interface, which reduces the burden on the core network and improves the switching performance.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本发明公开了一种基于X2接口的CSG小区切换方法及其装置,该方法包括:源基站在向目标基站发起切换请求之前,向核心网设备发送请求消息,以请求判断是否允许用户设备接入对应的目标基站小区,并接收核心网设备返回的响应消息,其中携带有判断结果信息,并在判断结果为允接入时,向对应的目标基站发起切换请求进行基于X2接口的切换。另一方法包括:基站设备在用户设备接入后,从核心网设备获取所述用户设备在相邻CSG小区的签约信息;当基站需要将所述用户设备切换到目标基站时,根据用户设备在相邻CSG小区的签约信息,判断目标基站小区是否允许所述用户设备接入,并在判断为是的情况下,执行基于X2接口的切换。本发明可减小网络开销。
Description
一种基于 X2接口的 CSG小区切换方法及其装置 本申请要求于 2011 年 6 月 14 日提交中国专利局, 申请号为 201110159035.6, 发明名称为 "一种基于 X2接口的 CSG小区切换方 法及其装置"的中国专利申请的优先权, 其全部内容通过引用结合在 本申请中。 技术领域
本发明涉及通信技术领域,尤其涉及一种基于 X2接口的 CSG小 区切换方法及其装置。 背景技术
LIPA ( Local IP Access, 本地 IP接入)技术最初是基于家庭基站 ( Home (enhanced) Node B , H(e)NB ) 网络提出的, 其含义是用户 的业务流数据直接从 H(e)NB进行接入, 不经过运营商的核心网络。 LIPA技术的特点是数据可以通过 H(e)NB接入到家庭或者企业内部 网络中而不需要通过运营商网络传递数据。对于 LIPA连接,要求 UE ( User Equipment , 用户设备)在同一本地 H(e)NB网络内部移动时 其连接性需要保持。
如图 1所示, 目前, 对于一个本地 H(e)NB网络有如下定义和特 点:
( 1 )一个本地 H(e)NB网络由一组 H(e)NB和与这组 H(e)NB有 到用于 LIPA的本地 PDN ( Public Data Network, 公用数据网络 ) 的 IP连接的一个或多个 L-GW ( Local-GateWay, 本地网关)组成; ( 2 )一个 H(e)NB只能属于一个本地 H(e)NB网络;
( 3 )一个 L-GW只能属于一个本地 H(e)NB网络;
( 4 )一个 L-GW可以接入一个或多个 PDN, —个 PDN可以通 过多个本地 H(e)NB网络接入;
( 5 ) 同一 H(e)NB 网络的 H(e)NB可能有不同的 CSG ( Closed
Subscribe Group , 封闭签约用户组);
( 6 )—个 CSG 可以由本地 H(e)NB 网络的 H(e)NB 以及本地 H(e)NB网络外的 H(e)NB组成。
UE能否接入到某一 CSG小区是由签约信息决定的, 当 UE接入 到一个新的 CSG小区时, 核心网需要根据签约信息判断 UE是否可 以接入到这一 CSG小区。 在现有的协议版本中, 只允许在相同 CSG 的 H(e)NB之间建立 X2接口 ( X2接口为基站间的接口), 当 UE在 这两个 H(e)NB之间发生移动时可以执行 X2接口切换。 由于源小区 与目标小区的 CSG id相同,因此在切换过程中不需要核心网判断 UE 能否接入到目标 CSG小区。
但是随着本地 H(e)NB 网络的引入, 有需求希望在同一 H(e)NB 网络的不同 H(e)NB之间建立 X2接口,不论这两个 H(e)NB是否是相 同的 CSG id。因为同一本地 H(e)NB网络之间的连接都是通过本地 IP 网络连接, 当 UE在两个 H(e)NB之间移动时数据和信令可以直接通 过本地 IP网络完成而不需要路由到核心网 IP网络, 这样可以提高切 换速率, 并且减少核心网的负担。
发生 X2接口切换时核心网不参与切换过程,而是等到切换完成, UE接入到目标小区时目标基站向 MME发送路径切换过程, 更新基 站与核心网之间的隧道地址等信息。 目前基站中保存的 UE的接入相 关的信息只有 UE限制接入的 PLMN id ( Public Land Mobile Network id,公共陆地移动网络标识),限制接入的 TAI( Tracking Area Identity, 跟踪区标识)等列表, 而并没有保存 UE允许接入的 CSG信息以及 在某一 CSG是否允许发起某一 LIPA连接的信息。
发明人在实现本发明的过程中, 发现现有技术至少存在以下缺 陷:
基站中没有保存 UE允许接入的 CSG列表的信息以及是否允许 发起 LIPA的信息, 所以在切换过程中源基站无法准确判断 UE是否 能允许接入到目标 H(e)NB中, 只有在切换完成发生路径倒换过程时 由 MME ( Mobile Management Entity, 移动管理实体)判断。 如果此
时 MME判断 UE无法接入到目标小区, 将会拒绝 UE在这一'■!、区的 接入, 浪费了网络资源, 并且可能会导致 UE的承载连接断掉, 影响 了业务连续性。 发明内容
本发明实施例提供了一种基于 X2接口的 CSG小区切换方法及其 装置,用以解决在进行基于 X2接口的 CSG小区间切换时网络资源开 销大的问题。
本发明实施例提供的基于 X2接口的 CSG小区切换方法, 包括: 源基站在向目标基站发起切换请求之前,向核心网设备发送请求 消息, 其中携带有目标基站小区 CSG标识, 以请求核心网设备判断 是否允许用户设备接入对应的目标基站小区;
源基站接收所述核心网设备返回的响应消息,其中携带有判断结 果信息, 并在判断结果为允许用户设备接入所述目标基站小区时, 向 对应的目标基站发起切换请求进行基于 X2接口的切换。
本发明实施例提供的基站, 包括:
查询模块, 用于在本基站作为源基站的情况下, 在向目标基站发 起切换请求之前, 向核心网设备发送请求消息, 其中携带有目标基站 小区 CSG标识, 以请求核心网设备判断是否允许用户设备接入对应 的目标基站小区;
接收模块, 用于在本基站作为源基站的情况下, 接收所述核心网 设备返回的响应消息, 其中携带有判断结果信息;
切换模块,用于在判断结果为允许用户设备接入所述目标基站小 区时, 向对应的目标基站发起切换请求进行基于 X2接口的切换。
本发明另一实施例提供的基于 X2接口的 CSG小区切换方法,包 括:
核心网设备接收源基站在向目标基站发起切换请求之前发送的 请求消息, 其中携带有目标基站小区 CSG标识;
所述核心网设备根据所述请求消息,判断是否允许用户设备接入 对应的目标基站小区;
所述核心网设备向所述源基站返回响应消息,其中携带有判断结 果信息。
本发明实施例提供的核心网设备, 包括:
接收模块,用于接收源基站在向目标基站发起切换请求之前发送 的请求消息, 其中携带有目标基站小区 CSG标识;
判断模块, 用于根据所述请求消息, 判断是否允许用户设备接入 对应的目标基站小区;
发送模块, 用于向所述源基站返回响应消息, 其中携带有判断结 果信息。
本发明的上述实施例, 在源基站开始向目标基站切换前, 先将目 标 CSG小区的标识发送给核心网设备, 以请求核心网设备判断用户 设备是否允许接入到该目标 CSG小区, 并在核心网设备判断为允许 接入的情况下, 才发起到目标 CSG小区的切换过程。 与现有技术中 核心网设备不参与切换过程的技术方案相比, 节省了网络开销。
本发明的另一实施例提供的基于 X2接口的 CSG小区切换方法, 包括:
基站设备在用户设备接入后,从核心网设备获取所述用户设备在 相邻 CSG小区的签约信息;
当所述基站需要将所述用户设备切换到目标基站时,根据所述用 户设备在相邻 CSG小区的签约信息, 判断目标基站小区是否允许所 述用户设备接入,并在判断为是的情况下,执行基于 X2接口的切换。
本发明另一实施例提供的基站, 包括:
获耳 ^莫块, 用于在用户设备接入后, 从核心网设备获取所述用户 设备在相邻 CSG小区的签约信息;
判断模块, 用于当基站需要将所述用户设备切换到目标基站时, 根据所述用户设备在相邻 CSG小区的签约信息, 判断目标基站小区 是否允许所述用户设备接入;
切换模块, 用于在所述判断模块判断为是的情况下, 执行基于
X2接口的切换。
本发明的上述实施例中,基站在用户设备接入后从核心网设备查 询该用户设备在相邻 CSG小区的签约信息, 这样, 当针对该用户设 备进行基于 X2接口的 CSG小区间切换时,源基站可根据之前从核心 网设备获取到的用户设备在相邻 CSG小区的签约信息, 判断该用户 设备是否允许接入到目标 CSG小区, 并在源基站判断为允许接入的 情况下, 才发起到目标 CSG小区的切换过程, 与现有技术相比, 节 省了网络开销。 附图说明
图 1为现有技术中 LIPA连续性架构示意图;
图 2为本发明实施例一提供的基于 X2接口的 CSG小区切换流程 示意图;
图 3为图 2所示流程的信令流程示意图;
图 4A为使用切换消息来执行图 2所示流程中步骤 201~202的示 意图;
图 4B为使用新定义的消息来执行图 2所示流程中步骤 201~202 的示意图
图 5为本发明实施例二提供的基于 X2接口的 CSG小区切换流程 示意图;
图 6为本发明实施例提供的基站设备的结构示意图之一; 图 7为本发明实施例提供的核心网设备的结构示意图;
图 8为本发明实施例提供的基站设备的结构示意图之二。 具体实施方式
下面结合附图和实施例,对本发明的具体实施方式作进一步详细 描述:
对于 UE激活的 LIPA连接, 当 UE在同一本地 HeNB网络中移 动时, UE的 LIPA连续性要得到保持。 同一 HeNB网络可能由多个 HeNB组成。 这多个 HeNB可能是属于同一个 CSG, 也可能属于不同 的 CSG, 但是由于这多个 HeNB都属于同一个本地 HeNB网络, 因 此有需求在同一个本地 HeNB网络的 HeNB之间部署 X2接口, 而不 论这两个 HeNB是否是相同的 CSG。当 UE发生移动而进入到另一个 小区时, 网络需要根据 UE的签约信息进行接入控制。 签约信息中会 包含 UE允许接入的 CSG id以及在这一 CSG小区中是否允许发起 LIPA等信息。如果 UE移动到了一个新的 CSG小区,而这一新的 CSG 小区没有包含在 UE的签约消息中, 则 UE就不能接入到这一小区。 当 UE在同一本地 HeNB网络的两个 CSG小区之间移动时, 由于两 个 HeNB之间有 X2接口, 因此可以执行 X2接口过程, 但是由于这 两个 HeNB的 CSG id不同, 而源 HeNB中又没有保存 UE允许接入 的 CSG信息, 因此源 HeNB无法判断目标小区是否允许 UE的接入。 如果等到 UE切换完成通过路径倒换通知 MME而 MME判断出 UE 不能接入到目标小区时则会造成资源的浪费, 并且可能引起 UE激活 的承载连接释放。
为解决上述问题, 本发明实施例提供了解决如何在不同的 CSG 小区之间执行 X2接口的切换的机制。 下面结合附图对本发明实施例 进行详细描述。
实施例一
本实施例描述了在基于 X2接口切换前由 MME判断目标小区是 否允许 UE接入的过程。
UE在上报的测量报告中会包含测量到的目标小区的 CSG id等信 息。 当 UE要执行切换时, 源 H(e)NB为 UE选择了切换目标小区后, 若发现源 H(e)NB与目标 H(e)NB之间有 X2接口, 但是目标小区的 CSG与源小区的 CSG小区不同, 则执行以下步骤 201 -203 :
步骤 201 , 源 H(e)NB向 MME发送消息, 在消息中携带目标小 区的 CSG id, 要求 MME判断 UE是否能在这一目标小区中接入。 进
一步的, 若此时 UE有激活的 LIPA连接, 还要要求 MME进一步判 断 UE当前激活的 LIPA PDN连接是否可以在目标 CSG小区保持。
具体的, 如图 4A所示, 源 H(e)NB向 MME发送的 S1接口消息 可以是已经定义过的 S 1接口消息, 如 Handover required (切换请求 ) 消息。 当前的 Handover required消息中本身携带了目标小区的 cell id 以及 CSG id等,但是这一消息本身是用于向 MME触发 S1接口切换 的。 若本实施例使用 Handover required消息通知 MME判断 UE是否 能在目标小区中接入,则需要在这一消息中增加 X2接口切换的标识, 用于向 MME指示这一消息不用触发后续的 S1接口切换过程, 而是 判断 UE是否允许接入到消息中携带的目标小区 cell id所指示的目标 小区中。如果此时 UE有激活的 LIPA连接, MME还需要进一步判断 目标小区是否允许保持当前激活的 LIPA连接。
源 H(e)NB也可以使用重新定义的一个或一组新的 S1接口消息 实现该步骤, 如图 4B所示, 这一接口消息用于 H(e)NB向 MME查 询 UE是否允许接入到某一 CSG小区, 以及进一步的是否允许在该 CSG小区保持已经激活的 LIPA连接。 在源 H(e)NB发送给 MME的 消息中包含需要查询的小区的 CSG id。 MME收到这一消息后将查询 UE是否允许接入请求的 CSG小区,以及进一步的是否允许在请求的 CSG小区中保持激活的 LIPA连接。
步骤 202, MME判断出 UE在目标小区的接纳状态后向源 H(e)NB 返回判断结果, 其中包含 UE是否允许接入到目标 CSG小区的指示 信息。 进一步的, 如果此时 UE有激活的 LIPA连接, 则还可以包含 UE当前激活的 LIPA连接是否能在目标小区保持的指示信息。
具体的,如图 4A所示, MME发送给源 H(e)NB的消息也可以重 用已经定义的 S1接口消息,如 Handover command (切换命令 )消息。 当前的 Handover command消息是用于在切换准备完成后, MME向 源 H(e)NB返回切换响应的, 包括目标侧没有成功接纳从而需要释放 的承载信息以及需要前转的承载信息等。 若本实施例使用 Handover command消息向源 H(e)NB返回判断结果,则需要扩展当前 Handover
command消息内容, 增加 UE是否允许接入到请求的目标 CSG小区 的指示信息, 以及进一步的, 当前 LIPA连接是否能够在目标小区中 保持的指示信息。
MME也可以使用重新定义的 MME到源 H(e)NB的查询响应消 息, 向 H(e)NB 返回查询结果, 如图 4B所示, 即指示 UE是否允许 接入到目标 CSG小区, 如果此时 UE有激活的 LIPA连接, 则还可以 指示 UE当前激活的 LIPA连接是否能保持。
步骤 203 ,如果 MME返回的判断结果为允许 UE接入到目标 CSG 小区, 则源 H(e)NB发起 X2接口切换过程, 具体切换过程可采用现 有方式实现。 如果 MME返回的判断结果为不允许 UE接入到目标 CSG小区, 则源 H(e)NB不能发起到这一目标 H(e)NB的切换过程。
具体的, 若 MME返回的结果是允许 UE接入到目标 CSG小区, 并且当前激活的 LIPA APN ( Access Point Name, 接入点名称 )在目 标 CSG中已签约,则源基站在切换请求消息中携带 LIPA承载的信息, 以使目标基站为保持连续的 LIPA连接对应的承载分配资源。若 MME 返回的结果是允许 UE接入到目标 CSG小区, 但是当前激活的 LIPA APN没有在目标 CSG中签约, 则可以在切换完成后由 MME通过源 服务网关删除该 LIPA连接。具体的,在源 H(e)NB发送给目标 H(e)NB 的 Handover request消息中将不包含 LIPA承载的信息, 目标 H(e)NB 不会为不能保持连续的 LIPA连接对应的承载分配资源; 等切换完成 后, MME发起 LIPA PDN连接去激活过程, 以通过源服务网关删除 该 LIPA连接。
图 3示出了上述流程的信令交互示意图, 其中, 步骤 301~303分 别对应图 2所示流程的步骤 201~203。
通过以上描述可以看出,本发明实施例在源基站开始向目标基站 切换前, 先将目标 CSG小区的标识发送给核心网设备, 以请求核心 网设备判断 UE是否允许接入到该目标 CSG小区, 并在核心网设备 判断为允许接入的情况下, 才发起到目标 CSG小区的切换过程。 与 现有技术中核心网设备不参与切换过程的技术方案相比,节省了网络
开销。
实施例二
本实施例描述了 H(e)NB在 UE接入本小区后,从 MME获取 UE 在相邻 CSG小区的签约信息,在进行基于 X2接口的切换时,根据用 户在目标 CSG小区的签约信息,判断是否可以切换到目标 CSG小区。
本实施例中, 相邻的 H(e)NB之间建立 X2接口连接后, H(e)NB 可以相互传递各自小区的 CSG id。 因此 H(e)NB可以知道其有 X2接 口连接的邻小区的 CSG id信息。 当 UE成功接入到这一小区, 并且 在这一小区建立了上下文信息后, 该小区 H(e)NB向 MME查询 UE 在相邻 CSG小区是否有签约。 其查询相邻 CSG小区的签约信息, 以 及根据该信息进行基于 X2接口的切换流程, 可如图 5所示:
步骤 501 , H(e)NB向 MME发送 UE签约信息查询请求消息, 其 中携带有需要查询的 CSG id, 即与本基站有 X2接口连接的相邻小区 的 CSG id。
步骤 502 , MME收到这一消息后向 H(e)NB返回查询响应消息, 其中携带有 UE所请求的 CSG中的签约信息,即 UE是否签约了某一 CSG, 以及该 CSG中签约的允许建立 LIPA连接的 APN。
步骤 503, 该 H(e)NB获取了 UE在邻区的 CSG签约信息后, 当 要执行到这些相邻小区的切换过程时, 该 H(e)NB根据获取到的相邻 CSG小区的签约信息, 判断 UE是否有目标小区的 CSG签约, 即 UE 是否可以切换到目标小区。
步骤 504, 如果判断结果为允许 UE接入到目标 CSG小区, 则源 H(e)NB发起 X2接口切换过程。如果判断结果为不允许 UE接入到目 标 CSG小区,则源 H(e)NB不能发起到这一目标 H(e)NB的切换过程。 该步骤可具体实现可同图 2所示的步骤 203。
通过以上描述可以看出, 基站在 UE接入后从核心网设备查询该 UE在相邻 CSG小区的签约信息, 这样, 当该 UE进行基于 X2接口 的 CSG小区间切换时,源基站可根据之前从核心网设备获取到的 UE 在相邻 CSG小区的签约信息, 判断该 UE是否允许接入到目标 CSG
小区, 并在源基站判断为允许接入的情况下, 才发起到目标 CSG小 区的切换过程, 与现有技术相比, 节省了网络开销。
需要说明的是,本发明的上述实施例仅以 H(e)NB为例进行描述, 但上述流程同样可适用于其它类型基站, 如 eNB。 另外, 切换流程中 所涉及的核心网设备虽以 MME为例进行描述,但核心网设备类型并 不受此限制。
基于相同的技术构思,本发明实施例还提供了一种基站以及核心 网设备的结构。 该基站可以是 eNB, 也可以是 H(e)NB。
参见图 6, 为本发明实施例提供的可适用于实施例一的基站的结 构示意图, 如图所示, 该基站可包括:
查询模块 601 , 用于在本基站作为源基站的情况下, 在向目标基 站发起切换请求之前, 向核心网设备发送请求消息, 其中携带有目标 基站小区 CSG标识, 以请求核心网设备判断是否允许用户设备接入 对应的目标基站小区;
接收模块 602, 用于在本基站作为源基站的情况下, 接收所述核 心网设备返回的响应消息, 其中携带有判断结果信息;
切换模块 603 , 用于在判断结果为允许用户设备接入所述目标基 站小区时,向对应的目标基站发起切换请求进行基于 X2接口的切换。
若所述用户设备当前有激活的本地 IP接入 LIPA连接, 则所述 响应消息中还携带有所述核心网设备判断所述用户设备当前激活的 LIPA连接能否在目标基站小区保持的结果信息; 切换模块 603还用 于: 若所述响应消息中携带有所述用户设备当前激活的 LIPA连接可 以在目标基站小区保持的结果信息, 则在切换请求消息中携带 LIPA 承载的信息, 以使目标基站为保持连续的 LIPA连接对应的承载分配 资源; 若所述响应消息中携带有所述用户设备当前激活的 LIPA连接 不能在目标基站小区保持的结果信息, 则在切换请求消息中不携带 LIPA承载的信息。
上述基站中, 查询模块 601所发送的请求消息为切换请求消息, 所述切换请求消息中携带有 X2接口切换标识, 用于指示核心网设备
判断是否允许用户设备接入目标基站小区;接收模块 602接收到的响 应消息为切换命令,其中携带有是否允许用户设备接入目标基站小区 的指示信息。
上述基站中, 查询模块 601发送的请求消息为新增的查询消息, 用以查询是否允许用户设备接入目标基站小区;接收模块 603接收到 的所述响应消息为新增的查询响应消息,其中携带有是否允许用户设 备接入目标基站小区的指示信息。
参见图 7, 为本发明实施例提供的核心网设备的结构示意图, 该 核心网设备可适用于实施例一, 如图所示, 该核心网设备可包括: 接收模块 701 , 用于接收源基站在向目标基站发起切换请求之前 发送的请求消息, 其中携带有目标基站小区 CSG标识;
判断模块 702, 用于根据所述请求消息, 判断是否允许用户设备 接入对应的目标基站小区;
发送模块 703, 用于向所述源基站返回响应消息, 其中携带有判 断结果信息。
上述核心网设备中, 判断模块 702还用于: 若所述用户设备当前 有激活的本地 IP接入 LIPA连接, 则判断所述用户设备当前激活的 LIPA连接能否在目标基站小区保持; 发送模块 703还用于: 将所述 用户设备当前激活的 LIPA连接能否在目标基站小区保持的判断结果 信息携带于所述响应消息返回给所述源基站。
上述核心网设备还可包括处理模块 704, 用于在判断模块 702判 断所述用户设备可以接入目标基站小区,但不能在目标基站小区保持 当前激活的 LIPA连接的情况下, 在切换完成后, 通过源服务网关删 除所述 LIPA连接。
上述核心网设备中,接收模块 701接收到的所述请求消息为切换 请求消息, 所述切换请求消息中携带有 X2接口切换标识; 所述判断 模块具体用于, 根据所述 X2接口切换标识判断是否允许用户设备接 入目标基站小区; 发送模块 703发送的所述响应消息为切换命令, 其 中携带有是否允许用户设备接入目标基站小区的指示信息。
上述核心网设备中,接收模块 701接收到的所述请求消息为新增 的查询消息,发送模块 703发送的所述响应消息为新增的查询响应消 参见图 8, 为本发明实施例提供的可适用于实施例二的基站设备 的结构示意图, 如图所示, 该基站可包括:
获耳 摸块 801 , 用于在用户设备接入后, 从核心网设备获取所述 用户设备在相邻 CSG小区的签约信息;
判断模块 802 , 用于当基站需要将所述用户设备切换到目标基站 时, 根据所述用户设备在相邻 CSG小区的签约信息, 判断目标基站 小区是否允许所述用户设备接入;
切换模块 803, 用于在所述判断模块判断为是的情况下, 执行基 于 Χ2接口的切换。
上述基站中, 获取模块 801可向核心网设备发送查询请求消息, 其中携带有与所述基站具有 Χ2接口连接的相邻小区的 CSG标识;以 及, 接收所述核心网设备返回的查询响应消息, 其中携带有所述用户 设备在对应相邻小区中的签约信息。
上述基站中, 判断模块 802可根据所述用户设备在相邻 CSG小 区的签约信息, 判断所述用户设备在所述目标基站小区中有 CSG签 约信息的情况下, 判断目标基站小区允许所述用户设备接入。
综上所述,本发明实施例实现了不同 CSG之间小区的 Χ2切换过 程, 同时提出了 Χ2接口切换过程中 LIPA连接的处理方法, 使得 UE 在同一本地 HeNB网络中移动时能够通过 X2接口执行切换, 而不需 要通过 S1接口进行切换过程, 减少了核心网负担,提高了切换性能。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现, 当然也可 以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解, 软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台终端设备(可以是手机,个人计算机,
服务器, 或者网络设备等)执行本发明各个实施例所述的方法。 以上所述仅是本发明的优选实施方式, 应当指出, 对于本技术领 域的普通技术人员来说, 在不脱离本发明原理的前提下, 还可以做出 若干改进和润饰, 这些改进和润饰也应视本发明的保护范围。
Claims
1、 一种基于 X2接口的封闭签约用户组封闭签约用户组 CSG小 区切换方法, 其特征在于, 包括:
源基站在向目标基站发起切换请求之前,向核心网设备发送请求 消息, 其中携带有目标基站小区 CSG标识, 以请求核心网设备判断 是否允许用户设备接入对应的目标基站小区;
源基站接收所述核心网设备返回的响应消息,其中携带有判断结 果信息, 并在判断结果为允许用户设备接入所述目标基站小区时, 向 对应的目标基站发起切换请求进行基于 X2接口的切换。
2、 如权利要求 1所述的方法, 其特征在于, 若所述用户设备当 前有激活的本地 IP接入 LIPA连接,则所述响应消息中还携带有所述 核心网设备判断所述用户设备当前激活的 LIPA连接能否在目标基站 小区保持的结果信息;
所述源基站在接收到所述响应消息后,若其中携带有所述用户设 备当前激活的 LIPA连接可以在目标基站小区保持的结果信息, 则所 述源基站在切换请求消息中携带 LIPA承载的信息, 以使目标基站为 保持连续的 LIPA连接对应的承载分配资源;
若所述响应消息中携带有所述用户设备当前激活的 LIPA连接不 能在目标基站小区保持的结果信息,则所述源基站在切换请求消息中 不携带 LIPA承载的信息, 并在切换完成后, 所述核心网设备通过源 服务网关删除所述 LIPA连接。
3、 如权利要求 1所述的方法, 其特征在于, 所述请求消息为切 换请求消息, 所述切换请求消息中携带有 X2接口切换标识, 用于指 示核心网设备判断是否允许用户设备接入目标基站小区;
所述响应消息为切换命令,其中携带有是否允许用户设备接入目 标基站小区的指示信息; 或,
所述请求消息为新增的查询消息,用以请求查询是否允许用户设 备接入目标基站小区; 所述响应消息为新增的查询响应消息,其中携带有是否允许用户 设备接入目标基站小区的指示信息。
4、 如权利要求 1-3之一所述的方法, 其特征在于, 所述源基站 和目标基站为家庭基站。
5、 一种基站, 其特征在于, 包括:
查询模块, 用于在本基站作为源基站的情况下, 在向目标基站发 起切换请求之前, 向核心网设备发送请求消息, 其中携带有目标基站 小区 CSG标识, 以请求核心网设备判断是否允许用户设备接入对应 的目标基站小区;
接收模块, 用于在本基站作为源基站的情况下, 接收所述核心网 设备返回的响应消息, 其中携带有判断结果信息;
切换模块,用于在判断结果为允许用户设备接入所述目标基站小 区时, 向对应的目标基站发起切换请求进行基于 X2接口的切换。
6、 如权利要求 5所述的基站, 其特征在于, 若所述用户设备当 前有激活的本地 IP接入 LIPA连接, 则所述响应消息中还携带有所 述核心网设备判断所述用户设备当前激活的 LIPA连接能否在目标基 站小区保持的结果信息;
所述切换模块还用于,若所述响应消息中携带有所述用户设备当 前激活的 LIPA连接可以在目标基站小区保持的结果信息, 则在切换 请求消息中携带 LIPA承载的信息,以使目标基站为保持连续的 LIPA 连接对应的承载分配资源;若所述响应消息中携带有所述用户设备当 前激活的 LIPA连接不能在目标基站小区保持的结果信息, 则在切换 请求消息中不携带 LIPA承载的信息。
7、 如权利要求 5所述的基站, 其特征在于, 所述查询模块所发 送的请求消息为切换请求消息, 所述切换请求消息中携带有 X2接口 切换标识,用于指示核心网设备判断是否允许用户设备接入目标基站 小区;
所述接收模块接收到的响应消息为切换命令,其中携带有是否允 许用户设备接入目标基站小区的指示信息; 或, 所述查询模块发送的请求消息为新增的查询消息,用以查询是否 允许用户设备接入目标基站小区;
所述接收模块接收到的所述响应消息为新增的查询响应消息,其 中携带有是否允许用户设备接入目标基站小区的指示信息。
8、 一种基于 X2接口的封闭签约用户组 CSG小区切换方法, 其 特征在于, 包括:
核心网设备接收源基站在向目标基站发起切换请求之前发送的 请求消息, 其中携带有目标基站小区 CSG标识;
所述核心网设备根据所述请求消息,判断是否允许用户设备接入 对应的目标基站小区;
所述核心网设备向所述源基站返回响应消息,其中携带有判断结 果信息。
9、 如权利要求 8所述的方法, 其特征在于, 若所述用户设备当 前有激活的本地 IP接入 LIPA连接, 则所述核心网设备还判断所述 用户设备当前激活的 LIPA连接能否在目标基站小区保持, 并将判断 结果信息携带于所述响应消息返回给所述源基站。
10、 如权利要求 9所述的方法, 其特征在于, 若所述核心网设备 判断所述用户设备可以接入目标基站小区,但不能在目标基站小区保 持当前激活的 LIPA连接, 则在切换完成后, 所述核心网设备通过源 服务网关删除所述 LIPA连接。
11、 如权利要求 8所述的方法, 其特征在于, 所述请求消息为切 换请求消息, 所述切换请求消息中携带有 X2接口切换标识; 所述核 心网设备根据所述 X2接口切换标识判断是否允许用户设备接入目标 基站小区;
所述响应消息为切换命令,其中携带有是否允许用户设备接入目 标基站小区的指示信息; 或,
所述请求消息为新增的查询消息 ,所述响应消息为新增的查询响 应消息。
12、 一种核心网设备, 其特征在于, 包括: 接收模块,用于接收源基站在向目标基站发起切换请求之前发送 的请求消息, 其中携带有目标基站小区 CSG标识;
判断模块, 用于根据所述请求消息, 判断是否允许用户设备接入 对应的目标基站小区;
发送模块, 用于向所述源基站返回响应消息, 其中携带有判断结 果信息。
13、 如权利要求 12所述的核心网设备, 其特征在于, 所述判断 模块还用于, 若所述用户设备当前有激活的本地 IP接入 LIPA连接, 则判断所述用户设备当前激活的 LIPA 连接能否在目标基站小区保 持;
所述发送模块还用于, 将所述用户设备当前激活的 LIPA连接能 否在目标基站小区保持的判断结果信息携带于所述响应消息返回给 所述源基站。
14、 如权利要求 13所述的核心网设备, 其特征在于, 还包括: 处理模块,用于在所述判断模块判断所述用户设备可以接入目标 基站小区, 但不能在目标基站小区保持当前激活的 LIPA连接的情况 下, 在切换完成后, 通过源服务网关删除所述 LIPA连接。
15、 如权利要求 12所述的核心网设备, 其特征在于, 所述接收 模块接收到的所述请求消息为切换请求消息,所述切换请求消息中携 带有 X2接口切换标识; 所述判断模块具体用于, 根据所述 X2接口 切换标识判断是否允许用户设备接入目标基站小区;
所述发送模块发送的所述响应消息为切换命令,其中携带有是否 允许用户设备接入目标基站小区的指示信息; 或,
所述接收模块接收到的所述请求消息为新增的查询消息,所述发 送模块发送的所述响应消息为新增的查询响应消息。
16、一种基于 X2接口的 CSG小区切换方法,其特征在于,包括: 基站设备在用户设备接入后,从核心网设备获取所述用户设备在 相邻 CSG小区的签约信息;
当所述基站需要将所述用户设备切换到目标基站时,根据所述用 户设备在相邻 CSG小区的签约信息, 判断目标基站小区是否允许所 述用户设备接入,并在判断为是的情况下,执行基于 X2接口的切换。
17、 如权利要求 16所述的方法, 其特征在于, 基站从核心网设 备获取所述用户设备在相邻 CSG小区的签约信息, 包括:
基站向核心网设备发送查询请求消息,其中携带有与所述基站具 有 X2接口连接的相邻小区的 CSG标识;
所述基站接收所述核心网设备返回的查询响应消息,其中携带有 所述用户设备在对应相邻小区中的签约信息。
18、 如权利要求 16所述的方法, 其特征在于, 所述基站根据所 述用户设备在相邻 CSG小区的签约信息, 判断目标基站小区是否允 许所述用户设备接入, 包括:
所述基站根据所述用户设备在相邻 CSG小区的签约信息, 判断 所述用户设备在所述目标基站小区中有 CSG签约信息的情况下, 判 断目标基站小区允许所述用户设备接入。
19、 一种基站, 其特征在于, 包括:
获耳 ^莫块, 用于在用户设备接入后, 从核心网设备获取所述用户 设备在相邻 CSG小区的签约信息;
判断模块, 用于当基站需要将所述用户设备切换到目标基站时, 根据所述用户设备在相邻 CSG小区的签约信息, 判断目标基站小区 是否允许所述用户设备接入;
切换模块, 用于在所述判断模块判断为是的情况下, 执行基于 X2接口的切换。
20、 如权利要求 19所述的基站, 其特征在于, 所述获取模块具 体用于, 向核心网设备发送查询请求消息, 其中携带有与所述基站具 有 X2接口连接的相邻小区的 CSG标识;接收所述核心网设备返回的 查询响应消息,其中携带有所述用户设备在对应相邻小区中的签约信
21、 如权利要求 19所述的基站, 其特征在于, 所述判断模块具 体用于, 根据所述用户设备在相邻 CSG小区的签约信息, 判断所述 用户设备在所述目标基站小区中有 CSG签约信息的情况下, 判断目 标基站小区允许所述用户设备接入。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110159035.6 | 2011-06-14 | ||
| CN2011101590356A CN102202365A (zh) | 2011-06-14 | 2011-06-14 | 一种基于x2接口的csg小区切换方法及其装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012171394A1 true WO2012171394A1 (zh) | 2012-12-20 |
Family
ID=44662674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/073382 Ceased WO2012171394A1 (zh) | 2011-06-14 | 2012-03-31 | 一种基于x2接口的csg小区切换方法及其装置 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102202365A (zh) |
| WO (1) | WO2012171394A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111526546A (zh) * | 2019-02-03 | 2020-08-11 | 中兴通讯股份有限公司 | 小区切换方法及装置、用户处理方法及装置 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102202365A (zh) * | 2011-06-14 | 2011-09-28 | 电信科学技术研究院 | 一种基于x2接口的csg小区切换方法及其装置 |
| CN102595535A (zh) * | 2012-01-18 | 2012-07-18 | 中兴通讯股份有限公司 | 信息处理方法、接入网网元、核心网网元、家庭基站和网关 |
| CN103260200B (zh) * | 2012-02-16 | 2016-05-18 | 电信科学技术研究院 | 发送异系统邻区信息和建立邻区关系的方法、系统及设备 |
| CN108632921B (zh) * | 2017-03-23 | 2022-07-01 | 中兴通讯股份有限公司 | 一种核心网切换方法及装置 |
| EP3751896B1 (en) | 2018-02-09 | 2026-03-11 | Beijing Xiaomi Mobile Software Co., Ltd. | Handover decision based on core network compatibility |
| CN111526547B (zh) * | 2019-02-03 | 2023-05-02 | 中兴通讯股份有限公司 | 小区切换方法及装置、用户处理方法及装置 |
| CN116266937A (zh) * | 2021-12-17 | 2023-06-20 | 华为技术有限公司 | 一种小区切换的方法和通信装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873627A (zh) * | 2009-04-22 | 2010-10-27 | 华为技术有限公司 | 切换控制方法、装置和系统 |
| CN102045798A (zh) * | 2011-01-11 | 2011-05-04 | 大唐移动通信设备有限公司 | 一种进行切换的方法、系统和设备 |
| CN102076036A (zh) * | 2011-01-14 | 2011-05-25 | 大唐移动通信设备有限公司 | 核心网设备和家庭基站及其处理lipa连接的方法 |
| CN102088746A (zh) * | 2010-01-29 | 2011-06-08 | 大唐移动通信设备有限公司 | 切换方法、系统及装置 |
| CN102202365A (zh) * | 2011-06-14 | 2011-09-28 | 电信科学技术研究院 | 一种基于x2接口的csg小区切换方法及其装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102014449B (zh) * | 2009-11-27 | 2013-12-25 | 电信科学技术研究院 | 一种用户设备的切换方法及家庭式演进基站 |
-
2011
- 2011-06-14 CN CN2011101590356A patent/CN102202365A/zh active Pending
-
2012
- 2012-03-31 WO PCT/CN2012/073382 patent/WO2012171394A1/zh not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873627A (zh) * | 2009-04-22 | 2010-10-27 | 华为技术有限公司 | 切换控制方法、装置和系统 |
| CN102088746A (zh) * | 2010-01-29 | 2011-06-08 | 大唐移动通信设备有限公司 | 切换方法、系统及装置 |
| CN102045798A (zh) * | 2011-01-11 | 2011-05-04 | 大唐移动通信设备有限公司 | 一种进行切换的方法、系统和设备 |
| CN102076036A (zh) * | 2011-01-14 | 2011-05-25 | 大唐移动通信设备有限公司 | 核心网设备和家庭基站及其处理lipa连接的方法 |
| CN102202365A (zh) * | 2011-06-14 | 2011-09-28 | 电信科学技术研究院 | 一种基于x2接口的csg小区切换方法及其装置 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111526546A (zh) * | 2019-02-03 | 2020-08-11 | 中兴通讯股份有限公司 | 小区切换方法及装置、用户处理方法及装置 |
| CN111526546B (zh) * | 2019-02-03 | 2023-02-03 | 中兴通讯股份有限公司 | 小区切换方法及装置、用户处理方法及装置 |
| US11991573B2 (en) | 2019-02-03 | 2024-05-21 | Zte Corporation | Cell handover method and device, and user processing method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102202365A (zh) | 2011-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11317374B2 (en) | RAN paging handling | |
| CN116406002B (zh) | 通过无线网络进行无线设备寻呼的方法、无线设备和系统 | |
| JP7454563B2 (ja) | ネットワークサービス制御方法及び通信機器 | |
| CN102036325B (zh) | 一种建立或修改本地ip接入承载的方法和设备 | |
| CN102752829B (zh) | 接入处理方法、装置及用户设备 | |
| EP3788826A1 (en) | Core paging handling | |
| US10779357B2 (en) | Method for avoiding handover failure | |
| US20140113637A1 (en) | Method, Apparatus, and System for Performing Handover Between Home Base Stations | |
| WO2012171394A1 (zh) | 一种基于x2接口的csg小区切换方法及其装置 | |
| CN109391932A (zh) | 一种异系统互操作的方法及装置 | |
| CN113163349B (zh) | 用于语音业务的通信方法、装置和系统 | |
| WO2009094916A1 (en) | A control method, system, and device for circuit domain fallback | |
| CN102238668A (zh) | 一种通过网关进行x2切换的方法 | |
| WO2010045854A1 (zh) | 接入控制方法、装置和通信系统 | |
| CN103686932A (zh) | 一种保证本地ip接入业务正确建立的方法 | |
| CN102036329B (zh) | 一种建立或修改本地ip接入承载的方法和设备 | |
| WO2013033883A1 (zh) | 处理切换的方法、移动性管理网元、无线接入网元和系统 | |
| WO2018010583A1 (zh) | 网络系统 | |
| WO2019029228A1 (zh) | 语音业务的处理方法及装置、存储介质 | |
| WO2011023125A1 (zh) | 释放连接的方法、装置及系统 | |
| WO2013152715A1 (zh) | 一种csg签约信息的传输方法和设备 | |
| CN114071620B (zh) | 通信方法、装置及系统 | |
| WO2022028146A1 (zh) | 通信方法、装置及系统 | |
| WO2012167648A1 (zh) | 一种进行lipa承载接入控制的方法、系统和设备 | |
| CN102238669B (zh) | 一种通过家用基站HeNB进行X2切换的方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12799784 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 12799784 Country of ref document: EP Kind code of ref document: A1 |