CN102340844A - Method for determining target base station in switching process, UE (User Equipment) and MME (Mobility Management Entity) - Google Patents
Method for determining target base station in switching process, UE (User Equipment) and MME (Mobility Management Entity) Download PDFInfo
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Abstract
The invention provides a method for determining a target base station in a switching process, UE (User Equipment) and an MME (Mobility Management Entity). The method comprises the steps of: obtaining service capability information of an adjacent base station; selecting a target base station which supports relevant services of the UE according to the service capability information, wherein the relevant services contain at least one of a service that the UE likes and a service performed by the UE at a source base station; and sending a measurement report which carries the service capability information of the target base station to the source base station to enable the source base station to send the service capability information of the target base station to the MME and enable the MME to perform access control. According to the embodiment of the invention, the service capability information of the target base station can be obtained in advance to solve the problem that an LIPA (Local IP Access) or SIPTO (Selected IP Traffic Offload) service is possibly unsupported by the target base station.
Description
Technical Field
The present invention relates to mobile communication technologies, and in particular, to a method for determining a target base station in a handover procedure, a UE, and an MME.
Background
A Home base station (Home NodeB, HNB) is one type of base station (NodeB) and a Home evolved base station (HeNB) is one type of evolved base station (eNB). The home base station or home evolved node b (h (e) NB) is deployed as a dedicated resource of a private user in a private place such as a home, a company, a mall, and the like. H (e) the NB may provide indoor coverage to provide higher data transmission rate and smaller delay, which may reduce the operation cost of the operator and create greater value for the operator.
H (e) NB, in addition to its macro base station functionality, can also directly serve as a local egress point for IP traffic. H (e) the function of NB as a Local exit point of IP traffic, which is mainly embodied in two new services, Local IP Access (LIPA) and Selected IP traffic offload (SIPTO).
When a UE that is performing LIPA or SIPTO traffic moves outside of the h (e) NB or macro base station coverage area for which IP traffic is routed, LIPA or SIPTO traffic will not continue. Thereafter, the terminal or the network side may choose to initiate LIPA or SIPTO traffic again, depending on the situation where the target h (e) NB or macro base station supports LIPA or SIPTO traffic.
The prior art has at least the following problems: in the UE handover process, the service support condition of the target base station cannot be known in advance, and the target base station supporting the service cannot be selected preferentially according to the service preference of the UE or the service currently executed by the UE, so that after the UE is handed over to the target cell, the service information supported by the target base station needs to be obtained again to determine whether to initiate the related service in the target cell, which results in a long interruption time of the related service.
Disclosure of Invention
The embodiment of the invention provides a method for determining a target base station in a switching process, UE and MME, which are used for solving the problem of long service interruption time of LIPA or SIPTO in the prior art.
In one aspect, a method for determining a target base station in a handover process is provided, including:
acquiring service capability information of an adjacent base station;
selecting a target base station supporting a relevant service of User Equipment (UE) according to the service capability information, wherein the relevant service comprises at least one of a service favored by the UE or a service executed by the UE at a source base station;
and carrying the service capability information of the target base station in a measurement report and sending the measurement report to the source base station, so that the source base station sends the service capability information of the target base station to a Mobile Management Entity (MME), and the MME executes access control.
In another aspect, a method for determining a target base station in a handover process is further provided, including:
receiving a switching request message sent by a source base station, wherein the switching request message comprises service capability information of a target base station, the target base station is selected by User Equipment (UE) according to the service capability information of an adjacent base station, and the service capability information of the target base station is obtained by the source base station from a measurement report sent by the UE;
acquiring information of related services of the UE, wherein the related services comprise at least one of services preferred by the UE or services executed by the UE at a source base station;
and executing access control according to the service capability information of the target base station and the information of the related service of the UE.
In one aspect, a UE is provided, including:
the acquisition module is used for acquiring the service capability information of the adjacent base station;
a selecting module, configured to select, according to the service capability information, a target base station that supports a service related to a UE, where the service related to the UE includes at least one of a service preferred by the UE or a service executed by the UE at a source base station;
a sending module, configured to carry the service capability information of the target base station in a measurement report and send the measurement report to the source base station, so that the source base station sends the service capability information of the target base station to a mobility management entity MME, so that the MME executes access control.
In another aspect, an MME is provided, including:
a receiving module, configured to receive a handover request message sent by a source base station, where the handover request message includes service capability information of a target base station, the target base station is selected by a user equipment UE according to service capability information of a neighboring base station, and the service capability information of the target base station is obtained by the source base station from a measurement report sent by the UE;
an obtaining module, configured to obtain information of a service related to the UE, where the service related to the UE includes at least one of a service preferred by the UE or a service executed by the UE in a source base station;
and the access module is used for executing access control according to the service capability information of the target base station and the information of the related service of the UE.
According to the technical scheme, the base station supporting the LIPA or SIPTO service can be selected as the target base station in the selected target base station by acquiring the service capability information of the adjacent base station, so that the selected target base station can support the LIPA or SIPTO service, and the influence on the LIPA or SIPTO service is reduced.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic flow chart of a method according to a first embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method according to a second embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method according to a third embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method according to a fourth embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating a process of determining, by an MME, a service currently executed by a UE in a fourth embodiment of the present invention;
FIG. 6 is a schematic diagram of a UE according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of an MME according to a sixth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flow chart of a method according to a first embodiment of the present invention, which includes:
step 11: and the UE acquires the service capability information of the adjacent base station.
Wherein, a Radio Access Network node (RAN) of the base station broadcasts a System message through a System Information Block (SIB), and service capability Information may be added to the System message, for example, when the base station supports LIPA service, the LIPA Support is used for indication; when the base station supports SIPTO service, it is indicated by SIPTO Support.
The UE can acquire the service capability information of the neighboring base station by monitoring the system message.
Step 12: and the UE selects a target base station supporting UE related services according to the service capability information, wherein the related services comprise at least one of services preferred by the UE or services executed by the UE at a source base station.
The service favored by the UE may be LIPA service or SIPTO service; the service executed by the UE at the source base station can be LIPA service or SIPTO service;
the service favored by the UE refers to a service which is not executed by the UE at present but is executed later; the service executed by the UE at the source base station is the service currently executed by the UE;
for example, when the service currently performed by the UE or the preferred service is the LIPA service, the UE selects a target base station from neighboring base stations supporting the LIPA service, for example, a base station with high signal strength is preferentially selected as the target base station from the neighboring base stations supporting the LIPA service. For SIPTO traffic, the target base station may also be selected in a similar manner.
Step 13: and the UE carries the service capability information of the target base station in a measurement report and sends the measurement report to the source base station, so that the source base station sends the service capability information of the target base station to an MME (mobility management entity), and the MME executes access control.
The MME can perform access control according to the service capability information of the target base station by carrying the service capability information of the target base station in the measurement report, thereby further ensuring that the accessed target base station can support a service that the UE prefers or a currently executed service.
In this embodiment, by acquiring the service capability information of the neighboring base station, the target base station may be selected according to the service capability information, so that the accessed target base station may support the LIPA or SIPTO service.
The first embodiment describes the behavior of the UE, and accordingly, the flow executed by the network device can be referred to the second embodiment.
Fig. 2 is a schematic flow chart of a method according to a second embodiment of the present invention, which includes:
step 21: a Mobility Management Entity (MME) receives a handover request message sent by a source base station, where the handover request message includes service capability information of a target base station, the target base station is selected by the UE according to the service capability information of an adjacent base station, and the service capability information of the target base station is obtained by the source base station from a measurement report sent by the UE.
For a base station on a network side, service capability information needs to be added to a system message broadcasted by the base station, so that the UE can acquire the service capability information of an adjacent base station, and the UE can select a target base station.
And then, carrying the service capability information of the target base station in the measurement report sent by the UE to the source base station and the switching request sent by the source base station to the MME.
Step 22: and the MME acquires information of related services of the UE, wherein the related services comprise at least one of services preferred by the UE or services executed by the UE at a source base station.
For the service favored by the UE, the information of the related service (specifically, the information of the service favored by the UE) may be carried in the measurement report sent by the UE to the source base station, and then the source base station carries the information of the service favored by the UE in the handover request message and sends the handover request message to the MME;
or, for the service executed by the UE at the source base station, the information of the relevant service (specifically, the information of the service executed by the UE at the source base station) may be obtained by the MME during the process of establishing the bearer for the UE at the source base station, for example, the information of the service executed by the UE at the source base station is carried in the packet data network connection completion message when the bearer is established, and is sent to the MME by the source base station.
Step 23: and the MME executes access control according to the service capability information of the target base station and the information of the related service of the UE.
When the base station is h (e) NB, for the prior art, the h (e) NB may be divided into a closed mode, a mixed mode, and an open mode; in the closed mode, the MME only allows a specific h (e) NB to access, that is, the MME stores a List (Allowed CSG List, ACL) of Allowed closed subscriber group identities (CSG) in the subscriber of the UE, and when the ID of the accessed h (e) NB belongs to the ACL, the access of the h (e) NB is Allowed. For mixed mode and open mode, non-ACL users may also be allowed access. For the comparison, the measurement report sent by the UE to the source base station and the handover request sent by the source base station to the MME may carry a closed subscriber Group identity (CSG ID) or an access mode.
In this embodiment, in addition to comparing the CSG ID or the access mode, the service capability information of the target base station needs to be further compared with the information of the related service of the UE, so that the target base station can support the LIPA service or the SIPTO service of the UE.
In this embodiment, access control is performed according to the service capability information of the target base station and the information of the relevant service of the UE, so that the UE can perform LIPA or SIPTO service at the target base station.
The following describes the procedures of the network device determining the target base station according to the service favored by the UE and the service currently executed by the UE in the source base station, respectively.
Fig. 3 is a schematic flow chart of a method according to a third embodiment of the present invention, which takes the example that a target base station is selected according to a preferred service of a UE, and the preferred service of the UE is a LIPA service or a SIPTO service. Referring to fig. 3, the present embodiment includes:
step 301: and the UE acquires the service capability information of the adjacent base station.
Specifically, the RAN in the neighboring base station may broadcast system information including service capability information of the neighboring cell through the SIB. For example, when a neighboring base station supports LIPA traffic, it may be denoted by LIPA Support, and when SIPTO traffic is supported, it may be denoted by SIPTO Support. Thereafter, the UE may obtain service capability information of the neighboring base station from the system information in the measurement process.
Step 302: and the UE selects a target base station from the adjacent base stations capable of supporting the service favored by the UE according to the service capability information of the adjacent base stations.
Specifically, the service preferred by the UE refers to a service that the UE does not currently perform, but the UE performs in a subsequent process. Since the subsequent UE will perform the service, in order to ensure the normal performance of the service, the target base station is required to support the service preferred by the UE.
For example, when a service preferred by the UE is a LIPA service, the UE selects neighboring base stations supporting the LIPA service (e.g., neighboring base stations corresponding to LIPA Support) as target base stations according to the service capability information, where when a plurality of neighboring base stations supporting the LIPA service are provided, a neighboring base station with a maximum signal strength may be selected from the neighboring base stations supporting the LIPA service as a target base station; when the service preferred by the UE is the SIPTO service, a neighbor base station (e.g., a neighbor cell corresponding to the SIPTO service) supporting the SIPTO service is selected as the target base station, wherein when a plurality of neighbor base stations supporting the SIPTO service are provided, a neighbor base station having the greatest channel strength among the plurality of neighbor base stations supporting the SIPTO service may be selected as the target base station.
Step 303: and the UE measures the target cell corresponding to the target base station to obtain a measurement report of the target cell, and sends the measurement report of the target cell to the source base station.
The measurement report may include service capability information of the target base station and information of a service preferred by the UE, and may further include a CSG ID or an access mode of the target base station.
Step 304: the source base station sends a switching request message to the MME, where the switching request message carries the service capability information and the information of the service preferred by the UE, and may also carry the CGS ID or the access mode.
Step 305: and the MME executes access control on the UE according to the parameters carried in the switching request message.
Specifically, first, comparing the CGS ID or access mode of the target base station with the subscription data of the UE, and when the handover request message carries the CGS ID, determining that the CSG ID of the target base station is in the ACL of the UE;
secondly, judging whether the favorite service of the UE is in the subscription data of the UE or not, wherein the favorite service of the UE is required to be determined in the subscription data of the UE;
thirdly, it needs to be determined that the service capability information of the target base station includes information of the service preferred by the UE, so that the target base station can support the service preferred by the UE, and the target base station is allowed to be accessed.
If the base station gateway exists in the network, the following steps are continuously executed:
step 306: and the MME sends a switching request message to the target base station gateway, wherein the switching request message carries the service capability information of the target base station, the information of the service favored by the UE and the CSGID or the access mode of the target base station.
Step 307: and the target base station gateway performs access verification.
Specifically, the target base station gateway checks whether the CGS ID or the access mode is consistent with the information stored in the target base station, and additionally, whether the target base station supports the service preferred by the UE needs to be checked.
If the CSG ID or the access mode is determined to be consistent with the information stored by the target base station, and the target cell supports the UIPA or SIPTO service, the Indication information allowed by the LIPA or SIPTO service is carried in the signaling of the subsequent step, such as the Indication of the LIPA Indication/SIPTO Indication.
Step 308: and the target base station gateway sends a switching request message to the target base station, wherein the switching request message carries service permission Indication information LIPA Indication/SIPTO Indication.
Step 309: and the target base station sends a switching request confirmation message to the target base station gateway, wherein the switching request confirmation message carries service permission Indication information LIPA Indication/SIPTO Indication.
Step 310: and the target base station gateway sends a switching request confirmation message to the MME, wherein the switching request confirmation message carries service permission Indication information LIPA Indication/SIPTO Indication.
Step 311: MME sends a request message for updating the load to a service gateway, wherein the request message for updating the load carries service permission Indication information LIPA Indication/SIPTO Indication.
Step 312: the service gateway sends an update bearing request message to the packet data network gateway, wherein the update bearing request message carries service permission Indication information LIPA Indication/SIPTO Indication.
Step 313: the packet data network gateway sends an update bearer response message to the serving gateway, wherein the update bearer response message carries service permission Indication information LIPA Indication/SIPTO Indication.
Step 314: the service gateway sends an update bearer response message to the MME, wherein the update bearer response message carries service permission Indication information LIPA Indication/SIPTO Indication.
Step 315: MME sends a tracking area update acceptance message to UE, and the tracking area update acceptance message carries service permission Indication information LIPA Indication/SIPTO Indication.
After the LIPA Indication/SIPTO Indication information is obtained, the UE may know that the target base station after the handover can support the LIPA/SIPTO service, and thus may request the LIPA or SIPTO service to the target base station in a subsequent process.
If the network does not have a base station gateway, the MME directly sends a switching request message to the target base station, wherein the switching request message carries the CSG ID or the access mode of the target base station, the service capability information of the target base station and the information of the service favored by the UE, and then the interaction of each device is similar to the process.
It can be understood that if the MME changes during the handover process, the source MME needs to forward the reallocation request message to the target MME; and if the service gateway is changed in the switching process, the service gateway is the target service gateway.
In this embodiment, the service preference of the UE and the service capability information of the target base station are carried in the handover request, so that the target base station can support the service preferred by the UE, and a basis is provided for correctly executing the service preferred by the UE after handover.
Fig. 4 is a schematic flowchart of a method according to a fourth embodiment of the present invention, where the embodiment takes the case where a target base station is selected according to a service currently executed by a UE, and the service currently executed by the UE is LIPA service or SIPTO service. Referring to fig. 4, the present embodiment includes:
step 401: and the UE acquires the service capability information of the adjacent base station.
See step 301 for details.
Step 402: and the UE selects a target base station from the adjacent base stations supporting the service currently executed by the UE according to the service capability information of the adjacent base stations.
For example, when the service currently executed by the UE is the LIPA service, the UE selects neighboring base stations (e.g., neighboring cells corresponding to the LIPA Support) supporting the LIPA service as target base stations according to the service capability information, and when there are multiple neighboring base stations supporting the LIPA service, selects a neighboring base station with the largest signal strength among the multiple neighboring base stations supporting the LIPA service as a target base station; when the service currently executed by the UE is the SIPTO service, selecting adjacent base stations (such as adjacent cells corresponding to the SIPTO Support) supporting the SIPTO service as target base stations, and when a plurality of adjacent base stations supporting the SIPTO service are provided, selecting the adjacent base station with the maximum signal strength from the plurality of adjacent base stations supporting the SIPTO service as the target base station.
Step 403: and the UE measures a target cell corresponding to the target base station to obtain a measurement report of the target cell, and sends the measurement report of the target cell to the source base station.
The measurement report carries the service capability information of the target base station, and may also carry the CSG ID or the access mode of the target base station.
Step 404: and the source base station sends a switching request message to the MME, wherein the switching request message carries the service capability information and can also carry the CGS ID or the access mode.
Step 405: the MME determines the service currently performed by the UE.
Specifically, referring to fig. 5, fig. 5 is a schematic flowchart illustrating a process of determining, by an MME, a service currently executed by a UE in a fourth embodiment of the present invention, where the process includes:
step 51: UE sends a packet data network connection request message to MME;
step 52: the MME performs access judgment on the UE, and if the UE is allowed to access, a bearer is established for the UE;
step 53: the UE and the MME establish radio resource control connection;
step 54: the base station sends a packet data network connection completion message to the MME, wherein the message carries information of the current service executed by the UE, such as an Indication message of LIPA or SIPTO service routed by the base station for the UE, and such as the Indication message is represented by LIPA Traffic Indication/SIPTO Traffic Indication.
Therefore, the network side can acquire the service currently executed by the UE.
It can be understood that the step of the MME knowing the service capability information of the neighboring cell of the UE and the step of the MME knowing the service currently executed by the UE are timing-constraint-free, that is, the steps 401 and 404 and 405 are timing-constraint-free.
Step 406: and the MME executes access control on the UE according to the parameters carried in the switching request message and the service currently executed by the UE.
Specifically, first, comparing the CGS ID or access mode of the target base station with the subscription data of the UE, and when the CGS ID is carried in the handover request, determining that the CSG ID of the target base station is in the ACL of the UE;
secondly, it needs to be determined that the service capability information of the target base station includes the service currently executed by the UE, so that the target base station can support the service currently executed by the UE, and then the target base station is allowed to access.
If the base station gateway exists in the network, the following steps are continuously executed:
step 407: and the MME sends a switching request message to the target base station gateway, wherein the switching request message carries the service capability information of the target base station, the information of the current service executed by the UE and the CSG ID or the access mode of the target base station.
Step 408: and the target base station gateway performs access verification.
Specifically, the target base station gateway checks whether the CGS ID or the access mode is consistent with the information stored in the target base station, and additionally, whether the target base station supports the service currently executed by the UE needs to be checked.
If the CSG ID or the access mode is determined to be consistent with the information stored by the target base station, and the target cell supports the LIPA or SIPTO service, the Indication information of the LIPA/SIPTO service permission is carried in the signaling of the subsequent step, such as the Indication of the LIPA Indication/SIPTO Indication.
Step 409-: corresponding to steps 308-315.
If the network does not have a base station gateway, the MME sends a switching request message to the target base station, wherein the switching request message carries the CSG ID or the access mode of the target base station, the service capability information of the target base station and the information of the service favored by the UE, and then the interaction of each device is similar to the process.
It can be understood that if the MME changes during the handover process, the source MME needs to forward the reallocation request message to the target MME; and if the service gateway is changed in the switching process, the service gateway is the target service gateway.
In this embodiment, the network device obtains the service capability information and the service currently executed by the UE, so that the network device can select the target base station for the UE according to the information, so that the target base station can support the service currently executed by the UE, and provide a basis for correctly executing the current service of the UE after the handover.
Fig. 6 is a schematic structural diagram of a UE according to a fifth embodiment of the present invention, which includes an obtaining module 61, a selecting module 62, and a sending module 63; the obtaining module 61 is configured to obtain service capability information of an adjacent base station; the selecting module 62 is configured to select, according to the service capability information, a target base station that supports a service related to the UE, where the service related to the UE includes at least one of a service preferred by the UE or a service executed by the UE at a source base station; the sending module 63 is configured to carry the service capability information of the target base station in a measurement report and send the measurement report to the source base station, so that the source base station sends the service capability information of the target base station to an MME, so that the MME executes access control.
The obtaining module 61 may be specifically configured to receive system information broadcast by a neighboring base station, where the system information includes service capability information.
The UE of this embodiment may further include a receiving module 64, where the receiving module 64 is configured to receive the service allowance indication information returned by the MME, and initiate the relevant service to the target base station again.
In this embodiment, the service preferred by the UE is a LIPA service or a SIPTO service, or the service executed by the UE in the source base station is a LIPA service or a SIPTO service.
The UE described in this embodiment may be specifically configured to execute the action executed by the UE in the foregoing method, and refer to the foregoing method embodiment specifically.
In this embodiment, by acquiring the service capability information of the neighboring base station, the target base station may be selected according to the service capability information, so that the accessed target base station may support the LIPA or SIPTO service.
Fig. 7 is a schematic structural diagram of an MME according to a sixth embodiment of the present invention, including a receiving module 71, an obtaining module 72, and an access module 73; the receiving module 71 is configured to receive a handover request message sent by a source base station, where the handover request message includes service capability information of a target base station, the target base station is selected by a user equipment UE according to service capability information of an adjacent base station, and the service capability information of the target base station is obtained by the source base station from a measurement report sent by the UE; the obtaining module 72 is configured to obtain information of a service related to the UE, where the service related to the UE includes at least one of a service preferred by the UE or a service performed by the UE at a source base station; the access module 73 is configured to perform access control according to the service capability information of the target base station and the information of the service related to the UE.
The obtaining module 72 may include at least one of the following units: a first cell 721 and/or a second cell 722; a first unit 721 is configured to obtain information of a service related to the UE from the handover request when the service related to the UE is a service preferred by the UE, where the information of the service preferred by the UE is carried in a measurement report and sent to the source base station, so that the source base station carries the information of the service preferred by the UE in the handover request; the second unit 722 is configured to, when the relevant service is a service that the UE performs at a source base station, obtain information of the relevant service of the UE from a packet data network connection completion message sent by the source base station, where, when a bearer is established, the information of the service that the UE performs at the source base station is carried in the packet data network connection completion message by the source base station.
The access module 73 is specifically configured to, when the CSG ID or the access mode of the target base station is consistent with the subscription data of the UE, allow access to the target base station if the service capability information of the target base station includes information of a service related to the UE.
The MME of this embodiment may further include a sending module 74, where the sending module 74 is configured to return service allowance indication information to the UE, so that the UE re-initiates the related service to the target base station after receiving the service allowance indication information.
In this embodiment, the service preferred by the UE is a LIPA service or a SIPTO service, or the service executed by the UE in the source base station is a LIPA service or a SIPTO service.
The MME according to this embodiment may be specifically configured to execute actions executed by the MME in the foregoing method, and refer to the foregoing method embodiment specifically.
In this embodiment, access control is performed on the target base station according to the service capability information of the target base station and the information of the relevant service of the UE, so that the target base station may perform LIPA or SIPTO service.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (16)
1. A method for determining a target base station in a handover process is characterized by comprising the following steps:
acquiring service capability information of an adjacent base station;
selecting a target base station supporting a relevant service of User Equipment (UE) according to the service capability information, wherein the relevant service comprises at least one of a service favored by the UE or a service executed by the UE at a source base station;
and carrying the service capability information of the target base station in a measurement report and sending the measurement report to the source base station, so that the source base station sends the service capability information of the target base station to a Mobile Management Entity (MME), and the MME executes access control.
2. The method of claim 1, wherein the obtaining the service capability information of the neighboring base station comprises:
and receiving system information broadcasted by an adjacent base station, wherein the system information comprises service capability information.
3. The method of claim 1, further comprising:
and receiving the service permission indication information returned by the MME, and initiating the related service to the target base station.
4. The method of any of claims 1-3, wherein the UE preferred traffic is local IP Access LIPA traffic or selected IP traffic offload SIPTO traffic, or wherein the traffic performed by the UE at the source base station is LIPA traffic or SIPTO traffic.
5. A method for determining a target base station in a handover process is characterized by comprising the following steps:
receiving a switching request message sent by a source base station, wherein the switching request message comprises service capability information of a target base station, the target base station is selected by User Equipment (UE) according to the service capability information of an adjacent base station, and the service capability information of the target base station is obtained by the source base station from a measurement report sent by the UE;
acquiring information of related services of the UE, wherein the related services comprise at least one of services preferred by the UE or services executed by the UE at a source base station;
and executing access control according to the service capability information of the target base station and the information of the related service of the UE.
6. The method of claim 5, wherein the obtaining the information about the UE related services comprises:
when the related service is a service favored by the UE, acquiring information of the related service of the UE from the handover request message, wherein the information of the service favored by the UE is carried by the UE in a measurement report and is sent to the source base station, so that the source base station carries the information of the service favored by the UE in the handover request message;
or,
and when the related service is a service executed by the UE at a source base station, acquiring information of the related service of the UE from a packet data network connection completion message sent by the source base station, wherein the information of the service executed by the UE at the source base station is carried in the packet data network connection completion message by the source base station when a bearer is established.
7. The method of claim 5, wherein the performing access control according to the service capability information of the target base station and the information of the related service of the UE comprises:
and when the closed subscriber group identifier (CSG ID) or the access mode of the target base station is consistent with the subscription data of the UE, if the service capability information of the target base station contains the information of the related service of the UE, allowing the UE to access the target base station.
8. The method of claim 5, further comprising:
and returning service permission indication information to the UE so that the UE initiates the related service to the target base station after receiving the service permission indication information.
9. The method of any of claims 5-8, wherein the UE preferred traffic is local IP Access LIPA traffic or selected IP traffic offload SIPTO traffic, or wherein the traffic performed by the UE at the source base station is LIPA traffic or SIPTO traffic.
10. A User Equipment (UE), comprising:
the acquisition module is used for acquiring the service capability information of the adjacent base station;
a selecting module, configured to select, according to the service capability information, a target base station that supports a service related to a UE, where the service related to the UE includes at least one of a service preferred by the UE or a service executed by the UE at a source base station;
a sending module, configured to carry the service capability information of the target base station in a measurement report and send the measurement report to the source base station, so that the source base station sends the service capability information of the target base station to a mobility management entity MME, so that the MME executes access control.
11. The UE of claim 10, wherein the obtaining module is specifically configured to receive system information broadcasted by a neighboring base station, and the system information includes service capability information.
12. The UE of claim 10, further comprising:
a receiving module, configured to receive the service permission indication information returned by the MME, and initiate the relevant service to the target base station.
13. A Mobility Management Entity (MME), comprising:
a receiving module, configured to receive a handover request message sent by a source base station, where the handover request message includes service capability information of a target base station, the target base station is selected by a user equipment UE according to service capability information of a neighboring base station, and the service capability information of the target base station is obtained by the source base station from a measurement report sent by the UE;
an obtaining module, configured to obtain information of a service related to the UE, where the service related to the UE includes at least one of a service preferred by the UE or a service executed by the UE in a source base station;
and the access module is used for executing access control according to the service capability information of the target base station and the information of the related service of the UE.
14. The MME of claim 13, wherein the obtaining module comprises at least one of:
a first unit, configured to obtain information about a service related to the UE from the handover request message when the service related to the UE is a service preferred by the UE, where the information about the service preferred by the UE is carried in a measurement report and sent to the source base station, so that the source base station carries the information about the service preferred by the UE in the handover request message;
or,
a second unit, configured to, when the relevant service is a service that is executed by the UE at a source base station, obtain information of the relevant service of the UE from a packet data network connection completion message sent by the source base station, where, when a bearer is established, the information of the service that is executed by the UE at the source base station is carried in the packet data network connection completion message by the source base station.
15. The MME of claim 13, wherein the access module is specifically configured to allow the UE to access the target base station if the service capability information of the target base station includes information of a service related to the UE when a closed subscriber group identity (CSG ID) or an access mode of the target base station is consistent with subscription data of the UE.
16. The MME of any one of claims 13-15, further comprising:
a sending module, configured to return service allowance indication information to the UE, so that the UE initiates the relevant service to the target base station after receiving the service allowance indication information.
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