CN107666695B - Network switching method and device - Google Patents
Network switching method and device Download PDFInfo
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- CN107666695B CN107666695B CN201610599699.7A CN201610599699A CN107666695B CN 107666695 B CN107666695 B CN 107666695B CN 201610599699 A CN201610599699 A CN 201610599699A CN 107666695 B CN107666695 B CN 107666695B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/14—Reselecting a network or an air interface
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Abstract
The invention provides a method and a device for network switching, wherein the method for network switching comprises the following steps: acquiring a switching type of a terminal between a current connection network and a target network; acquiring the terminal capability of a target network corresponding to the switching type according to the switching type; and switching the terminal from the current connection network to the target network according to the terminal capability of the target network. The invention solves the problems that the success rate of inquiring the terminal capability is reduced and the time delay of switching the LTE network to the 2G network is increased due to inquiring all the terminal capabilities when the S1 switching is carried out between the LTE network and the 2G network in the prior art.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for network handover.
Background
In the early stage of Long Term Evolution (LTE) network deployment, coverage of a second generation mobile communication technology (2G) network and a third generation mobile communication technology (3G) network is far greater than that of the LTE network, and the coverage of the LTE network mostly adopts hot spot coverage, which causes the user terminal to frequently switch between the LTE network and the 2G network or the 3G network.
In the TS36.300 protocol, when the terminal is handed over between the LTE network and the 2G or 3G network, the S1 handover method is adopted. In an S1 handover mode during handover between an LTE network and a 2G or 3G network, a terminal needs to query capability information of the terminal in advance when the terminal is handed over from the LTE network to the 2G or 3G network, where the terminal capability includes a GSM EDGE radio access network-circuit switching (GERAN-CS) capability of the 2G and a GSM EDGE radio access network-packet switching (GERAN-PS) capability, or a Universal Terrestrial Radio Access (UTRA) capability of the 3G. In addition, when the terminal is handed over from the LTE network to the 2G network, the S1 handover types include a plurality of types, for example, a Packet Switched (PS) handover of Circuit Switched Fallback (CSFB), a Circuit Switched (CS) handover of Single Radio Voice Call Continuity (SRVCC), a PS and CS handover of SRVCC, and the like. For these S1 handover types, the requirements of the 2G network on the terminal capabilities are not the same, e.g. CS handover for SRVCC requires the terminal to have GERAN-CS capabilities, while PS handover for CSFB requires the terminal to have GERAN-PS capabilities.
However, in the prior art, when S1 handover is performed between the LTE network and the 2G network, all terminal capabilities are queried, which undoubtedly wastes air interface resources, reduces success rate of terminal capability query, and increases delay of handover from the LTE network to the 2G network.
Disclosure of Invention
In order to solve the problems that the success rate of terminal capability query is reduced and the time delay of switching from the LTE network to the 2G network is increased due to the fact that all terminal capabilities are queried when S1 is switched between the LTE network and the 2G network in the prior art, the invention provides a network switching method and a network switching device.
In order to solve the above technical problem, in a first aspect, the present invention provides a method for network handover, including:
acquiring a switching type of a terminal between a current connection network and a target network;
acquiring the terminal capability of a target network corresponding to the switching type according to the switching type;
and switching the terminal from the current connection network to the target network according to the terminal capability of the target network.
Optionally, the handover type includes: packet switched PS handover for circuit switched fallback CSFB, circuit switched CS handover for single radio voice call continuity, SRVCC, and PS and CS handover for SRVCC.
Optionally, the step of acquiring a handover type of the terminal between the current connection network and the target network includes: receiving a measurement report sent by a terminal, and acquiring a switching target cell of a target network according to the measurement report; and acquiring the switching type according to the cell capability of the switching target cell and the terminal capability of the current connection network.
Optionally, the step of obtaining the handover type according to the cell capability of the handover target cell and the terminal capability of the current connection network includes: when the switching target cell supports VoIP and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports CSFB, the acquired switching type is PS switching of the CSFB; when the switching target cell does not support VoIP and supports S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network and supports SRVCC, the acquired switching type is CS switching of SRVCC; and when the switching target cell does not support VoIP, supports dual transfer mode DTM and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports SRVCC, the acquired switching type is PS and CS switching of SRVCC.
Optionally, the step of acquiring, according to the handover type, the terminal capability of the target network corresponding to the handover type includes: when the switching type is PS switching of CSFB, acquiring GSM EDGE radio access network-packet switching GERAN-PS capability of a target network corresponding to the PS switching of the CSFB; when the switching type is CS switching of SRVCC, acquiring GSM EDGE radio access network-circuit switching GERAN-CS capability of a target network corresponding to the CS switching of SRVCC; and when the switching type is PS and CS switching of SRVCC, acquiring GERAN-PS capability and GERAN-CS capability of a target network corresponding to the PS and CS switching of SRVCC.
Optionally, when the handover type is PS handover of CSFB, the step of acquiring GSM EDGE radio access network-packet switched GERAN-PS capability of the target network corresponding to the PS handover of CSFB includes: when the switching type is PS switching of CSFB, a base station sends a first terminal capability request message to the terminal; wherein, the first terminal capability request message carries a GERAN-PS identification field; receiving first terminal capacity information reported by the terminal according to the first terminal capacity request message; the first terminal capability information carries GERAN-PS capability information of a target network; and acquiring the GERAN-PS capability according to the first terminal capability information.
Optionally, when the handover type is CS handover of SRVCC, the step of obtaining GSM EDGE radio access network-circuit handover GERAN-CS capability of the target network corresponding to the CS handover of SRVCC includes: when the switching type is CS switching of SRVCC, the base station sends a second terminal capability request message to the terminal; wherein, the second terminal capability request message carries a GERAN-CS identification field; receiving second terminal capacity information reported by the terminal according to the second terminal capacity request message; the second terminal capability information carries GERAN-CS capability information of a target network; and acquiring the GERAN-CS capability according to the second terminal capability information.
Optionally, when the handover type is PS and CS handover of SRVCC, the step of obtaining GERAN-PS capability and GERAN-CS capability of the target network corresponding to the PS and CS handover of SRVCC includes: when the switching type is PS and CS switching of SRVCC, the base station sends a third terminal capability request message to the terminal; wherein, the third terminal capability request message carries GERAN-PS and GERAN-CS identification fields; receiving third terminal capacity information reported by the terminal according to the third terminal capacity request message; the third terminal capability information carries GERAN-PS and GERAN-CS capability information of a target network; and acquiring the GERAN-PS capability and the GERAN-CS capability according to the third terminal capability information.
In a second aspect, the present invention provides an apparatus for network handover, including:
the first acquisition module is used for acquiring the switching type of the terminal between the current connection network and the target network;
a second obtaining module, configured to obtain, according to the handover type, a terminal capability of a target network corresponding to the handover type;
and the switching module is used for switching the terminal from the current connection network to the target network according to the terminal capability of the target network.
Optionally, the handover type includes: packet switched PS handover for circuit switched fallback CSFB, circuit switched CS handover for single radio voice call continuity, SRVCC, and PS and CS handover for SRVCC.
Optionally, the first obtaining module includes: a receiving unit, configured to receive a measurement report sent by a terminal, and obtain a handover target cell of a target network according to the measurement report; a first obtaining unit, configured to obtain the handover type according to the cell capability of the handover target cell and the terminal capability of the current connection network.
Optionally, the first obtaining unit is configured to, when the handover target cell supports VoIP and S1 handover, the terminal capability of the current connection network supports handover between the current connection network and a target network, and supports CSFB, obtain the handover type as PS handover of CSFB; when the switching target cell does not support VoIP and supports S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network and supports SRVCC, the acquired switching type is CS switching of SRVCC; and when the switching target cell does not support VoIP, supports dual transfer mode DTM and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports SRVCC, the acquired switching type is PS and CS switching of SRVCC.
Optionally, the second obtaining module includes: a second obtaining unit, configured to obtain, when the handover type is PS handover of CSFB, GSM EDGE radio access network-packet switched GERAN-PS capability of a target network corresponding to the PS handover of CSFB; a third obtaining unit, configured to obtain, when the handover type is CS handover of SRVCC, gsm edge radio access network-circuit handover GERAN-CS capability of a target network corresponding to the CS handover of SRVCC; and the fourth obtaining unit is used for obtaining the GERAN-PS capability and the GERAN-CS capability of the target network corresponding to the PS and CS switching of the SRVCC when the switching type is the PS and CS switching of the SRVCC.
Optionally, the second obtaining unit is configured to, when the handover type is PS handover of CSFB, send a first terminal capability request message to the terminal by the base station; wherein, the first terminal capability request message carries a GERAN-PS identification field; receiving first terminal capacity information reported by the terminal according to the first terminal capacity request message; the first terminal capability information carries GERAN-PS capability information of a target network; and acquiring the GERAN-PS capability according to the first terminal capability information.
Optionally, the third obtaining unit is configured to, when the handover type is CS handover of SRVCC, send, by the base station, a second terminal capability request message to the terminal; wherein, the second terminal capability request message carries a GERAN-CS identification field; receiving second terminal capacity information reported by the terminal according to the second terminal capacity request message; the second terminal capability information carries GERAN-CS capability information of a target network; and acquiring the GERAN-CS capability according to the second terminal capability information.
Optionally, the fourth obtaining unit is configured to, when the handover type is PS and CS handover of SRVCC, send, by the base station, a third terminal capability request message to the terminal; wherein, the third terminal capability request message carries GERAN-PS and GERAN-CS identification fields; receiving third terminal capacity information reported by the terminal according to the third terminal capacity request message; the third terminal capability information carries GERAN-PS and GERAN-CS capability information of a target network; and acquiring the GERAN-PS capability and the GERAN-CS capability according to the third terminal capability information.
The invention has the beneficial effects that:
the network switching method provided by the invention comprises the steps of firstly obtaining the switching type of the terminal between the current connection network and the target network, then obtaining the terminal capability of the target network corresponding to the switching type according to the switching type, and finally switching the terminal from the current connection network to the target network according to the terminal capability of the target network. Therefore, the terminal capability of the target network corresponding to the switching type is acquired according to different switching types, namely the terminal capability of the target network is selectively acquired, so that the problems that the terminal capability query success rate is reduced and the time delay of switching from the LTE network to the 2G network is increased due to the fact that all terminal capabilities are queried when S1 switching is carried out between the LTE network and the 2G network in the prior art are solved, air interface resources are saved, the success rate of the terminal capability query is improved, the time delay of switching from the LTE network to the 2G network is reduced, and the switching stability and the user experience are improved.
Drawings
Fig. 1 shows a flow chart of the steps of a method of network handover in a first embodiment of the invention;
fig. 2 shows a flow chart of the steps of a method of network handover in a second embodiment of the invention;
fig. 3 is a block diagram showing a network switching apparatus according to a third embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The first embodiment:
as shown in fig. 1, it is a flowchart of the steps of a method for network handover in a first embodiment of the present invention, and the method includes the following steps:
step 101, acquiring a switching type of a terminal between a current connection network and a target network.
In this step, the base station obtains the handover type of the terminal between the current connection network and the target network before the terminal is handed over from the current connection network to the target network. Specifically, the current connection network is a network before the terminal is switched, and the current connection network may be an LTE network; the target network is a network after the terminal is switched, and the target network may be a 2G network. Further, the handover types may include PS handover for CSFB, CS handover for SRVCC, and PS and CS handover for SRVCC.
And 102, acquiring the terminal capability of the target network corresponding to the switching type according to the switching type.
In this step, specifically, when the handover type of the terminal between the current connection network and the target network is obtained, the terminal capability of the target network corresponding to the handover type may be obtained according to the handover type.
For example, when the handover type is PS handover of CSFB, GERAN-PS capability of the target network corresponding to PS handover of CSFB may be acquired; when the switching type is CS switching of SRVCC, GERAN-CS capability of a target network corresponding to the CS switching of SRVCC can be obtained; when the switching type is PS and CS switching of SRVCC, GERAN-PS capability and GERAN-CS capability of a target network corresponding to PS and CS switching of SRVCC can be obtained.
And 103, switching the terminal from the current connection network to the target network according to the terminal capability of the target network.
In this step, specifically, when the base station switches the terminal from the current connection network to the target network according to the terminal capability of the target network, the base station may construct an S1 handover request message according to the terminal capability of the target network and transmit the S1 handover request message to a mobile management unit (MME), and then perform an S1 handover procedure for switching the terminal from the current connection network to the target network. For example, when the current connection network is the LTE network and the target network is the 2G network, the S1 handover procedure of the terminal switching from the LTE network to the 2G network is performed.
In this way, in this embodiment, by obtaining the handover type of the terminal between the current connection network and the target network, then obtaining the terminal capability of the target network corresponding to the handover type according to the handover type, and finally switching the terminal from the current connection network to the target network according to the terminal capability of the target network, the problems of reducing the success rate of querying the terminal capability and increasing the time delay for switching the LTE network to the 2G network due to querying all the terminal capabilities when performing S1 handover between the LTE network and the 2G network in the prior art are solved, air interface resources are saved, the success rate of querying the terminal capability is improved, the time delay for switching the LTE network to the 2G network is reduced, and the stability of handover and the user experience are improved.
Second embodiment:
as shown in fig. 2, it is a flowchart of the steps of a method for network handover in a second embodiment of the present invention, where the method includes the following steps:
In this step, specifically, the base station receives a measurement report sent by the terminal, and acquires a handover target cell of the target network according to the measurement report. Specifically, the handover target cell of the target network may be a 2G cell.
Step 202, obtaining the switching type according to the cell capability of the switching target cell and the terminal capability of the current connection network.
In this step, specifically, the cell capability of the handover target cell may include whether the handover target cell supports VoIP, S1 handover, and DTM. The terminal capabilities of the current connection network may include whether handover between the current connection network and the target network is supported and whether CSFB and SRVCC are supported.
Specifically, when a handover type is obtained according to a cell capability of a handover target cell and a terminal capability of a current connection network, when the handover target cell supports VoIP and S1 handover, the terminal capability of the current connection network supports handover between the current connection network and a target network, and when CSFB is supported, the obtained handover type is PS handover of CSFB; when the switching target cell does not support VoIP and supports S1 switching, the terminal capability of the current connection network supports the switching between the current connection network and the target network and supports SRVCC, the acquired switching type is the CS switching of SRVCC; when the switching target cell does not support VoIP, supports DTM and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports SRVCC, the acquired switching type is PS and CS switching of SRVCC.
Specifically, when the handover type is acquired, the process proceeds to step 203, step 204, or step 205.
In this step, specifically, when the obtained handover type is PS handover of CSFB, GERAN-PS capability of the target network corresponding to the PS handover of CSFB may be obtained. Specifically, in a specific implementation, the base station may send a first terminal capability request message to the terminal; the first terminal capability request message carries a GERAN-PS identification field; then receiving first terminal capacity information reported by the terminal according to the first terminal capacity request message; the first terminal capability information carries GERAN-PS capability information of a target network; and finally, acquiring the GERAN-PS capability according to the first terminal capability information.
Of course, it should be noted herein that when the base station already stores all the capability information (GERAN-PS capability and GERAN-CS capability) of the target network of the terminal, the terminal capability of the target network corresponding to the handover type may not be acquired again according to the handover type, and at this time, the terminal may be directly handed over from the currently connected network to the target network.
And step 204, when the switching type is the CS switching of the SRVCC, acquiring the GSM EDGE radio access network-circuit switching GERAN-CS capability of the target network corresponding to the CS switching of the SRVCC.
In this step, specifically, when the acquired handover type is CS handover of SRVCC, GERAN-CS capability of the target network corresponding to the CS handover of SRVCC is acquired. Specifically, in a specific implementation, the base station may send a second terminal capability request message to the terminal; the second terminal capability request message carries a GERAN-CS identification field; then receiving second terminal capacity information reported by the terminal according to the second terminal capacity request message; the second terminal capability information carries GERAN-CS capability information of a target network; and finally, acquiring the GERAN-CS capability according to the second terminal capability information.
In this step, specifically, when the acquired handover type is PS and CS handover of SRVCC, GERAN-PS capability and GERAN-CS capability of the target network corresponding to the PS and CS handover of SRVCC may be acquired. Specifically, in a specific implementation, the base station may send a third terminal capability request message to the terminal; the third terminal capability request message carries GERAN-PS and GERAN-CS identification fields; then receiving third terminal capacity information reported by the terminal according to the third terminal capacity request message; the third terminal capability information carries GERAN-PS and GERAN-CS capability information of the target network; and finally, according to the third terminal capability information, acquiring the GERAN-PS capability and the GERAN-CS capability.
And step 206, switching the terminal from the current connection network to the target network according to the terminal capability of the target network.
In this step, specifically, when the base station switches the terminal from the current connection network to the target network according to the terminal capability of the target network, the base station may construct an S1 handover request message according to the first terminal capability information, the second terminal capability information, or the third terminal capability information reported by the terminal, send the S1 handover request message to the MME, and execute an S1 handover procedure for switching the terminal from the current connection network to the target network. For example, when the current connection network is the LTE network and the target network is the 2G network, the S1 handover procedure for handover of the terminal from the LTE network to the 2G network is performed.
In this way, in this embodiment, according to the obtained switching type of the terminal between the current connection network and the target network, the terminal capability of the corresponding target network is obtained, and finally, according to the terminal capability of the target network, the terminal is switched from the current connection network to the target network. In this way, in this embodiment, according to the obtained handover type, the terminal capability of the corresponding target network is obtained, the problems that, when S1 handover is performed between the LTE network and the 2G network in the prior art, the success rate of querying the terminal capability is reduced and the time delay for handover from the LTE network to the 2G network is increased due to querying of all terminal capabilities are solved, air interface resources are saved, the success rate of querying the terminal capability is improved, the time delay for handover from the LTE network to the 2G network is reduced, and the stability of handover and the user experience are improved.
The third embodiment:
as shown in fig. 3, a block diagram of a network handover apparatus according to a third embodiment of the present invention is shown, where the apparatus includes:
a first obtaining module 301, configured to obtain a handover type of a terminal between a current connection network and a target network;
a second obtaining module 302, configured to obtain, according to the handover type, a terminal capability of the target network corresponding to the handover type;
and a switching module 303, configured to switch the terminal from the current connection network to the target network according to the terminal capability of the target network.
Optionally, the handover types include: packet switched PS handover for circuit switched fallback CSFB, circuit switched CS handover for single radio voice call continuity, SRVCC, and PS and CS handover for SRVCC.
Optionally, the first obtaining module 301 includes: a receiving unit, configured to receive a measurement report sent by a terminal, and obtain a handover target cell of a target network according to the measurement report; and the first acquisition unit is used for acquiring the switching type according to the cell capability of the switching target cell and the terminal capability of the current connection network.
Optionally, the first obtaining unit is configured to, when the handover target cell supports VoIP and S1 handover, the terminal capability of the current connection network supports handover between the current connection network and the target network, and supports CSFB, obtain PS handover of which the handover type is CSFB; when the switching target cell does not support VoIP and supports S1 switching, the terminal capability of the current connection network supports the switching between the current connection network and the target network and supports SRVCC, the acquired switching type is the CS switching of SRVCC; when the switching target cell does not support VoIP, supports dual transfer mode DTM and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports SRVCC, the acquired switching type is PS and CS switching of SRVCC.
Optionally, the second obtaining module 302 includes: a second obtaining unit, configured to obtain, when the handover type is PS handover of CSFB, GSM EDGE radio access network-packet switched GERAN-PS capability of the target network corresponding to the PS handover of CSFB; a third obtaining unit, for obtaining GSM EDGE radio access network-circuit switching GERAN-CS capability of the target network corresponding to the CS switching of SRVCC when the switching type is CS switching of SRVCC; and the fourth obtaining unit is used for obtaining the GERAN-PS capability and the GERAN-CS capability of the target network corresponding to the PS and CS switching of the SRVCC when the switching type is the PS and CS switching of the SRVCC.
Optionally, the second obtaining unit is configured to, when the handover type is PS handover of CSFB, send a first terminal capability request message to the terminal by the base station; the first terminal capability request message carries a GERAN-PS identification field; receiving first terminal capacity information reported by a terminal according to a first terminal capacity request message; the first terminal capability information carries GERAN-PS capability information of a target network; and acquiring the GERAN-PS capability according to the first terminal capability information.
Optionally, the third obtaining unit is configured to, when the handover type is CS handover of SRVCC, send, by the base station, a second terminal capability request message to the terminal; the second terminal capability request message carries a GERAN-CS identification field; receiving second terminal capacity information reported by the terminal according to the second terminal capacity request message; the second terminal capability information carries GERAN-CS capability information of a target network; and acquiring the GERAN-CS capability according to the second terminal capability information.
Optionally, the fourth obtaining unit is configured to, when the handover type is PS and CS handover of SRVCC, send, by the base station, a third terminal capability request message to the terminal; the third terminal capability request message carries GERAN-PS and GERAN-CS identification fields; receiving third terminal capacity information reported by the terminal according to the third terminal capacity request message; the third terminal capability information carries GERAN-PS and GERAN-CS capability information of the target network; and acquiring the GERAN-PS capability and the GERAN-CS capability according to the third terminal capability information.
In this way, the apparatus in this embodiment obtains the handover type of the terminal between the current connection network and the target network through the first obtaining module, obtains the terminal capability of the target network corresponding to the handover type according to the handover type through the second obtaining module, and finally switches the terminal from the current connection network to the target network through the handover module according to the terminal capability of the target network, thereby solving the problems of reducing the success rate of querying the terminal capability and increasing the time delay for switching the LTE network to the 2G network due to querying all the terminal capabilities when performing S1 handover between the LTE network and the 2G network in the prior art, saving air interface resources, improving the success rate of querying the terminal capability, and improving the stability of handover and the user experience.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (14)
1. A method of network handover, comprising:
receiving a measurement report sent by a terminal, and acquiring a switching target cell of a target network according to the measurement report;
acquiring the switching type according to the cell capability of the switching target cell and the terminal capability of the current connection network;
acquiring the terminal capability of a target network corresponding to the switching type according to the switching type;
and switching the terminal from the current connection network to the target network according to the terminal capability of the target network.
2. The method of claim 1, wherein the handover type comprises: packet switched PS handover for circuit switched fallback CSFB, circuit switched CS handover for single radio voice call continuity, SRVCC, and PS and CS handover for SRVCC.
3. The method according to claim 1, wherein the step of obtaining the handover type according to the cell capability of the handover target cell and the terminal capability of the current connected network comprises:
when the switching target cell supports VoIP and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports CSFB, the acquired switching type is PS switching of the CSFB;
when the switching target cell does not support VoIP and supports S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network and supports SRVCC, the acquired switching type is CS switching of SRVCC;
and when the switching target cell does not support VoIP, supports dual transfer mode DTM and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports SRVCC, the acquired switching type is PS and CS switching of SRVCC.
4. The method according to claim 2, wherein the step of obtaining the terminal capability of the target network corresponding to the handover type according to the handover type comprises:
when the switching type is PS switching of CSFB, acquiring GSM EDGE radio access network-packet switching GERAN-PS capability of a target network corresponding to the PS switching of the CSFB;
when the switching type is CS switching of SRVCC, acquiring GSM EDGE radio access network-circuit switching GERAN-CS capability of a target network corresponding to the CS switching of SRVCC;
and when the switching type is PS and CS switching of SRVCC, acquiring GERAN-PS capability and GERAN-CS capability of a target network corresponding to the PS and CS switching of SRVCC.
5. The method of claim 4, wherein the step of acquiring GSM EDGE radio Access network-packet switched GERAN-PS capability of the target network corresponding to the PS handover of the CSFB when the handover type is PS handover of the CSFB comprises:
when the switching type is PS switching of CSFB, a base station sends a first terminal capability request message to the terminal; wherein, the first terminal capability request message carries a GERAN-PS identification field;
receiving first terminal capacity information reported by the terminal according to the first terminal capacity request message; the first terminal capability information carries GERAN-PS capability information of a target network;
and acquiring the GERAN-PS capability according to the first terminal capability information.
6. The method of claim 4, wherein the step of obtaining GSM EDGE radio Access network-Circuit switched GERAN-CS capability of the target network corresponding to the CS handover of SRVCC when the handover type is the CS handover of SRVCC comprises:
when the switching type is CS switching of SRVCC, the base station sends a second terminal capability request message to the terminal; wherein, the second terminal capability request message carries a GERAN-CS identification field;
receiving second terminal capacity information reported by the terminal according to the second terminal capacity request message; the second terminal capability information carries GERAN-CS capability information of a target network;
and acquiring the GERAN-CS capability according to the second terminal capability information.
7. The method of claim 4, wherein the step of acquiring GERAN-PS capability and GERAN-CS capability of the target network corresponding to PS and CS handover of SRVCC comprises, when the handover type is PS and CS handover of SRVCC:
when the switching type is PS and CS switching of SRVCC, the base station sends a third terminal capability request message to the terminal; wherein, the third terminal capability request message carries GERAN-PS and GERAN-CS identification fields;
receiving third terminal capacity information reported by the terminal according to the third terminal capacity request message; the third terminal capability information carries GERAN-PS and GERAN-CS capability information of a target network;
and acquiring the GERAN-PS capability and the GERAN-CS capability according to the third terminal capability information.
8. An apparatus for network handover, comprising:
the first acquisition module is used for receiving a measurement report sent by a terminal and acquiring a switching target cell of a target network according to the measurement report; acquiring the switching type according to the cell capability of the switching target cell and the terminal capability of the current connection network;
a second obtaining module, configured to obtain, according to the handover type, a terminal capability of a target network corresponding to the handover type;
and the switching module is used for switching the terminal from the current connection network to the target network according to the terminal capability of the target network.
9. The apparatus of claim 8, wherein the handover type comprises: packet switched PS handover for circuit switched fallback CSFB, circuit switched CS handover for single radio voice call continuity, SRVCC, and PS and CS handover for SRVCC.
10. The apparatus of claim 8, wherein the first obtaining module is configured to, when the handover target cell supports VoIP and S1 handover, the terminal capability of the current connection network supports handover between the current connection network and a target network, and supports CSFB, obtain PS handover of the handover type CSFB; when the switching target cell does not support VoIP and supports S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network and supports SRVCC, the acquired switching type is CS switching of SRVCC; and when the switching target cell does not support VoIP, supports dual transfer mode DTM and S1 switching, the terminal capability of the current connection network supports switching between the current connection network and the target network, and supports SRVCC, the acquired switching type is PS and CS switching of SRVCC.
11. The apparatus of claim 8, wherein the second obtaining module comprises:
a second obtaining unit, configured to obtain, when the handover type is PS handover of CSFB, GSM EDGE radio access network-packet switched GERAN-PS capability of a target network corresponding to the PS handover of CSFB;
a third obtaining unit, configured to obtain, when the handover type is CS handover of SRVCC, GSM EDGE radio access network-circuit handover GERAN-CS capability of a target network corresponding to the CS handover of SRVCC;
and the fourth obtaining unit is used for obtaining the GERAN-PS capability and the GERAN-CS capability of the target network corresponding to the PS and CS switching of the SRVCC when the switching type is the PS and CS switching of the SRVCC.
12. The apparatus of claim 11, wherein the second obtaining unit is configured to, when the handover type is PS handover in CSFB, send a first terminal capability request message to the terminal by a base station; wherein, the first terminal capability request message carries a GERAN-PS identification field; receiving first terminal capacity information reported by the terminal according to the first terminal capacity request message; the first terminal capability information carries GERAN-PS capability information of a target network; and acquiring the GERAN-PS capability according to the first terminal capability information.
13. The apparatus of claim 11, wherein the third obtaining unit is configured to, when the handover type is CS handover with SRVCC, send a second terminal capability request message to the terminal by the base station; wherein, the second terminal capability request message carries a GERAN-CS identification field; receiving second terminal capacity information reported by the terminal according to the second terminal capacity request message; the second terminal capability information carries GERAN-CS capability information of a target network; and acquiring the GERAN-CS capability according to the second terminal capability information.
14. The apparatus of claim 11, wherein the fourth obtaining unit is configured to, when the handover type is PS and CS handover of SRVCC, send a third terminal capability request message to the terminal by the base station; wherein, the third terminal capability request message carries GERAN-PS and GERAN-CS identification fields; receiving third terminal capacity information reported by the terminal according to the third terminal capacity request message; the third terminal capability information carries GERAN-PS and GERAN-CS capability information of a target network; and acquiring the GERAN-PS capability and the GERAN-CS capability according to the third terminal capability information.
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| CN110392404B (en) * | 2018-04-20 | 2021-11-16 | 中国移动通信集团设计院有限公司 | Cell switching control method and base station |
| CN115150876A (en) * | 2021-03-16 | 2022-10-04 | 中国移动通信有限公司研究院 | Information processing method, device, equipment and readable storage medium |
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