CN109996298B - Cross-network switching method, device, equipment and medium - Google Patents

Cross-network switching method, device, equipment and medium Download PDF

Info

Publication number
CN109996298B
CN109996298B CN201711494889.3A CN201711494889A CN109996298B CN 109996298 B CN109996298 B CN 109996298B CN 201711494889 A CN201711494889 A CN 201711494889A CN 109996298 B CN109996298 B CN 109996298B
Authority
CN
China
Prior art keywords
user
control function
request information
module
code
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.)
Active
Application number
CN201711494889.3A
Other languages
Chinese (zh)
Other versions
CN109996298A (en
Inventor
费树明
蔡锴
崔立军
杨松霖
曹耘瑕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mobile Communications Group Co Ltd
China Mobile Group Chongqing Co Ltd
Original Assignee
China Mobile Communications Group Co Ltd
China Mobile Group Chongqing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Group Co Ltd, China Mobile Group Chongqing Co Ltd filed Critical China Mobile Communications Group Co Ltd
Priority to CN201711494889.3A priority Critical patent/CN109996298B/en
Publication of CN109996298A publication Critical patent/CN109996298A/en
Application granted granted Critical
Publication of CN109996298B publication Critical patent/CN109996298B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a cross-network switching method, a device, equipment and a medium. The method comprises the following steps: a first access transfer control function module receives first switching request information sent by a user, wherein the first switching request information comprises a unique identification code of the user and a first session transfer code; searching the registration session information of the user according to the first session transfer code; when the registration session information of the user cannot be searched, determining a user service module to which the user belongs according to the unique identification code; and sending query request information to the determined user service module, wherein the query request information comprises the unique identification code of the user, so that the user service module queries a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user. The invention can ensure the smooth completion of the SRVCC process.

Description

Cross-network switching method, device, equipment and medium
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method, an apparatus, a device, and a medium for cross-network handover.
Background
The single-standby Voice continuous srvcc (single Radio Voice Call continuity) service refers to that when a VoLTE user roams from E-utran (evolved Universal Radio Access network) to utran (umts Radio Access network)/geran (gsm EDGE Radio Access network) in a Call process, the Call of the user is kept uninterrupted through a handover process of the UE and a network device. Fig. 1 shows a network flow diagram of a single standby voice continuous service, and as shown in fig. 1, a handover procedure of SRVCC may be divided into the following steps:
(1) and after the eNodeB judges that the access network needs to be switched, the eNodeB sends a handover required message to the source MME. And the MME separates the voice bearer with QCI of 1 from other bearers according to the SRVCC indication in the message, selects an SRVCC IWF according to the Target ID in the handover Request message, and initiates a PS to CS Request handover Request to the SRVCC IWF through an Sv interface. The message carries the C-MSISDN and the STN-SR number previously allocated by the ATCF to the UE.
(2) After receiving the switching request message, the SRVCC IWF finds out a Target MSC Server (namely the MSC Server to which the switching Target side belongs) according to the Target ID carried in the message, and then executes a switching process between the SRVCC IWF and the Target MSC Server.
(3) After the target side UTRAN/GERAN network bearing is established, SRVCC IWF establishes the bearing of SRVCC IWF and ATCF according to STN-SR number.
(4) The ATCF updates the bearing information on the ATGW according to the session to be switched of the C-MSISDN associated user, switches the media surface of the local terminal to the bearing of the UTRAN/GERAN network, and informs the SCC AS to update the access domain information of the UE.
As can be seen from the above SRVCC process, the SRVCC IWF in step 3 establishes the load bearing of SRVCC IWF and ATCF according to STN-SR number, which is the key for establishing the intercommunication between CS domain and IMS domain. Whether the SRVCC IWF can address the correct ATCF network element depends on the accuracy of the STN-SR number, i.e.: the STN-SR number obtained by SRVCC IWF from MME must be allocated by SBC/ATCF network element where UE is currently registered.
And the STN-SR number transferred to SRVCC IWF by MME is updated by HSS network element through the Insert Subscriber Data Request message of S6a interface in UE registration process. In some abnormal situations (e.g., S6a interface abnormality, HSS procedure abnormality, etc.), it may happen that the HSS does not update the correct STN _ SR number to the MME. At this time, the STN-SR number stored by the MME is not consistent with the ATCF network element actually registered by the UE, fig. 2 shows a schematic flow diagram of SRVCC failure due to STN-SR number error, as shown in fig. 2, if an SRVCC flow is initiated at this time:
the MME sends the error STN-SR number (STN _ SR2 in the figure) saved by itself to the SRVCC IWF.
And the SRVCC IWF sends the Invite message to the wrong ATCF network element (ATCF 2 in the figure) according to the wrong STN-SR number.
Since the UE is actually registered on another ATCF network element (ATCF 1 in the figure), the ATCF2 cannot necessarily query the registration and session information of the user according to the number in the From header field of the Invite message (i.e., the C-MSISDN number of the handover user).
The ATCF network element returns an error message to the SRVCC IWF, and the SRVCC process declares failure at this time.
Disclosure of Invention
The embodiment of the invention provides a cross-network switching method, a device, equipment and a medium, which are used for solving the problem of switching failure caused by the fact that an ATCF network element is not updated in the traditional cross-network switching process.
In a first aspect, an embodiment of the present invention provides a cross-network handover method, where the method includes:
a first access transfer control function module receives first switching request information sent by a user, wherein the first switching request information comprises a unique identification code of the user and a first session transfer code;
searching the registration session information of the user according to the first session transfer code;
when the registration session information of the user cannot be searched, determining a user service module to which the user belongs according to the unique identification code;
and sending query request information to the determined user service module, wherein the query request information comprises the unique identification code of the user, so that the user service module queries a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user.
In a second aspect, an embodiment of the present invention provides an inter-network handover apparatus, where the apparatus includes:
the first access module is used for receiving first switching request information sent by a user, wherein the first switching request information comprises a unique identification code of the user and a first session transfer code;
the first query module is used for searching the registration session information of the user according to the first session transfer code;
the attributive user service module determining module is used for determining the user service module to which the user belongs according to the unique identification code when the registration session information of the user cannot be searched;
and the first sending module is used for sending query request information to the determined user service module, wherein the query request information comprises the unique identification code of the user, so that the user service module queries the second access transfer control function module and the second session transfer code registered by the user according to the unique identification code of the user.
An embodiment of the present invention provides a cross-network switching device, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of the first aspect of the embodiments described above.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which computer program instructions are stored, which, when executed by a processor, implement the method of the first aspect in the foregoing embodiments.
The cross-network switching method, the device, the equipment and the medium provided by the embodiment of the invention can avoid that an incorrect ATCF network element directly rejects the switching request, and the Invite message is forwarded to a correct ATCF network element, thereby ensuring the smooth completion of the SRVCC process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic network flow diagram of a single-standby voice continuous service;
fig. 2 is a flow chart illustrating SRVCC failure caused by STN-SR number error;
fig. 3 is a flowchart illustrating an inter-network handover method according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a cross-network handover method according to another embodiment of the present invention;
FIG. 5 is a block diagram of an inter-network switching apparatus according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a hardware structure of an inter-network switching device according to another embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Fig. 3 shows a flowchart of an inter-network handover method according to an embodiment of the present invention, and as shown in fig. 3, the method includes:
in step S10, the first access transfer control function module receives first switching request information sent by a user, where the first switching request information includes a unique identifier of the user and a first session transfer code.
And step S20, searching the registration session information of the user according to the first session transfer code.
And step S30, when the registration session information of the user can not be found, determining the user service module to which the user belongs according to the unique identification code.
Step S40, sending query request information to the determined user service module, where the query request information includes the unique identification code of the user, so that the user service module queries the second access transfer control function module and the second session transfer code registered by the user according to the unique identification code of the user.
Specifically, after the SRVCC IWF addresses the wrong ATCF network element according to the wrong STN-SR number, the ATCF network element can still forward the Invite message to the correct ATCF network element actually registered by the UE, thereby avoiding SRVCC procedure failure and better ensuring voice continuity of the VoLTE user.
In one possible implementation, the method includes:
receiving a second access transfer control function module and a second session transfer code which are sent back by the access transfer control function module and registered by the user;
and sending second switching request information to the second access transfer control function module, wherein the second switching request information comprises the second session transfer code and the unique identification code.
In one possible implementation, the method includes:
the home subscriber service module receives query request information sent by a first access transfer control function module, wherein the query request information comprises a unique identification code of the user;
inquiring a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user;
and sending the inquired second access transfer control function module registered by the user and the second session transfer code to the first access transfer control function module.
In one possible implementation, the method includes:
a second access transfer control function module receives second switching request information sent by a first access transfer control function module, wherein the second switching request information comprises a second session transfer code and a unique identification code of a user;
and providing switching service for the user according to the second session transfer code and the unique identification code of the user.
Specifically, the following functions are added to the ATCF and HSS network elements:
and a signaling interaction interface is newly added between the ATCF and the HSS network element.
The ATCF network element may initiate a query to the HSS requesting the ATCF host name information and STN _ SR number currently registered by the user.
After receiving the query request sent by the ATCF network element, the HSS may query the ATCF host name information and STN _ SR number stored in the HSS and reply to the ATCF network element.
The ATCF network element can rebuild the Invite message according to the feedback information of the HSS and forward the Invite message to the new ATCF network element.
Fig. 4 is a flowchart illustrating a cross-network handover method according to another embodiment of the present invention, as shown in fig. 4, first, in a registration process in an IMS domain, a host name of an ATCF network element (ATCF 1 in the figure) where a UE is located is stored in an HSS through an S-CSCF network element; meanwhile, its allocated session transfer number STN _ SR (STN _ SR1 in the figure) is also stored in the HSS through the S-CSCF and the SCC AS network element.
When the MME does not receive the HSS Insert Subscriber Data Request message, its stored STN _ SR number is still the wrong STN _ SR 2.
When the SRVCC procedure occurs at this time, the ATCF2 network element will receive the Invite message from the SRVCC IWF network element.
And if the ATCF2 network element cannot inquire the registration and session information of the UE according to the number in the From header field of the Invite message, triggering a process of initiating inquiry to the HSS, and requesting to ask the HSS for the ATCF host name information and the STN _ SR number currently registered by the UE. [ arrow 1 in the figure ]
After inquiring the corresponding information, the HSS returns the host name information of the currently registered ATCF (ATCF 1 in the figure) and the correct STN _ SR number (STN _ SR1 in the figure) to the ATCF2 network element. [ arrow 1 in the figure ]
After receiving the feedback information of the HSS, the ATCF2 network element first replaces the To header field in the Invite message with the correct STN _ SR1 from the original wrong STN _ SR2, and then forwards the reconstructed Invite message To the correct ATCF1 according To the host name of the ATCF 1. [ arrow 2 in the figure ]
The ATCF1, upon receiving the forwarded Invite message, can proceed with the subsequent SRVCC procedure according to the existing specification. By the method, the situation that the wrong ATCF network element directly rejects the switching request but forwards the Invite message to the correct ATCF network element can be avoided, and the SRVCC process is guaranteed to be completed smoothly.
According to the method and the device, when the MME fails to update the stored STN _ SR number due to reasons, even if the SRVCC IWF sends the Invite message to the wrong ATCF network element, the subsequent SRVCC process can be still completed, so that the failure of the SRVCC switching process is avoided, and the service perception of the VoLTE user is improved.
Fig. 5 is a block diagram of an inter-network handover apparatus according to an embodiment of the present invention, and as shown in fig. 5, the apparatus includes:
a first access module 41, configured to receive first handover request information sent by a user, where the first handover request information includes a unique identification code of the user and a first session transfer code;
a first query module 42, configured to search for the registration session information of the user according to the first session transfer code;
a home subscriber service module determining module 43, configured to determine, according to the unique identifier, a subscriber service module to which the user belongs when registration session information of the user is not found;
the first sending module 44 is configured to send query request information to the determined subscriber service module, where the query request information includes the unique identifier of the subscriber, so that the subscriber service module queries, according to the unique identifier of the subscriber, the second access transfer control function module and the second session transfer code registered by the subscriber.
In one possible implementation, the apparatus further includes:
a first receiving module, configured to receive a second access transfer control function module and a second session transfer code, which are sent back by the access transfer control function module and registered by the user;
and the forwarding module is used for sending second switching request information to the second access transfer control function module, wherein the second switching request information comprises the second session transfer code and the unique identification code.
In a possible implementation manner, the inter-network switching apparatus of another embodiment includes:
the second receiving module is used for receiving the query request information sent by the first access transfer control function module, wherein the query request information comprises the unique identification code of the user;
the second inquiry module is used for inquiring a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user;
and the second sending module is used for sending the inquired second access transfer control function module registered by the user and the second session transfer code to the first access transfer control function module.
In a possible implementation manner, the inter-network switching apparatus of another embodiment includes:
a third receiving module, configured to receive second handover request information sent by the first access transfer control function module, where the second handover request information includes a second session transfer code and a unique identification code of the user;
and the service module is used for providing switching service for the user according to the second session transfer code and the unique identification code of the user.
In addition, the cross-network switching method described in the embodiment of the present invention in conjunction with fig. 3 may be implemented by a cross-network switching device. Fig. 6 is a schematic diagram illustrating a hardware structure of an inter-network switching device according to another embodiment of the present invention.
The cross-network switching device may include a processor 401 and a memory 402 storing computer program instructions.
Specifically, the processor 401 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
Memory 402 may include mass storage for data or instructions. By way of example, and not limitation, memory 402 may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, tape, or Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 402 may include removable or non-removable (or fixed) media, where appropriate. The memory 402 may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory 402 is a non-volatile solid-state memory. In a particular embodiment, the memory 402 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or a combination of two or more of these.
The processor 401 reads and executes the computer program instructions stored in the memory 402 to implement any of the cross-network handover methods in the above embodiments.
In one example, the cross-network switching device may also include a communication interface 403 and a bus 410. As shown in fig. 6, the processor 401, the memory 402, and the communication interface 403 are connected via a bus 410 to complete communication therebetween.
The communication interface 403 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
Bus 410 includes hardware, software, or both to couple the components of the cross-network switching device to each other. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 410 may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
In addition, in combination with the cross-network handover method in the foregoing embodiments, embodiments of the present invention may provide a computer-readable storage medium to implement. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the cross-network handover methods in the above embodiments.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.

Claims (9)

1. An inter-network handover method, the method comprising:
a first access transfer control function module receives first switching request information sent by a user, wherein the first switching request information comprises a unique identification code of the user and a first session transfer code;
searching the registration session information of the user according to the first session transfer code;
when the registration session information of the user cannot be searched, determining a user service module to which the user belongs according to the unique identification code;
and sending query request information to the determined user service module, wherein the query request information comprises the unique identification code of the user, so that the user service module queries a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user.
2. The method according to claim 1, characterized in that it comprises:
receiving a second access transfer control function module and a second session transfer code which are sent back by the user service module and registered by the user;
and sending second switching request information to the second access transfer control function module, wherein the second switching request information comprises the second session transfer code and the unique identification code.
3. An inter-network handover method, the method comprising:
under the condition that the first access transfer control function module cannot find the registration session information of the user, the home subscriber service module receives query request information sent by the first access transfer control function module, wherein the query request information comprises a unique identification code of the user;
inquiring a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user;
and sending the inquired second access transfer control function module and the second session transfer code registered by the user to the first access transfer control function module so that the first access transfer control function module sends second handover request information to the second access transfer control function module, wherein the second handover request information comprises the second session transfer code and the unique identification code.
4. An inter-network handover method, the method comprising:
under the condition that the first access transfer control function module cannot search the registration session information of the user, and the home subscriber module inquires a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user, the second access transfer control function module receives second switching request information sent by the first access transfer control function module, wherein the second switching request information comprises the second session transfer code and the unique identification code of the user;
and providing switching service for the user according to the second session transfer code and the unique identification code of the user.
5. An inter-network switching apparatus, the apparatus comprising:
the first access module is used for receiving first switching request information sent by a user, wherein the first switching request information comprises a unique identification code of the user and a first session transfer code;
the first query module is used for searching the registration session information of the user according to the first session transfer code;
the attributive user service module determining module is used for determining the user service module to which the user belongs according to the unique identification code when the registration session information of the user cannot be searched;
and the first sending module is used for sending query request information to the determined user service module, wherein the query request information comprises the unique identification code of the user, so that the user service module queries the second access transfer control function module and the second session transfer code registered by the user according to the unique identification code of the user.
6. An inter-network switching apparatus, the apparatus comprising:
the second receiving module is used for receiving the query request information sent by the first access transfer control function module under the condition that the first access transfer control function module cannot find the registration session information of the user, wherein the query request information comprises the unique identification code of the user;
the second inquiry module is used for inquiring a second access transfer control function module and a second session transfer code registered by the user according to the unique identification code of the user;
a second sending module, configured to send the queried second access transfer control function module and second session transfer code registered by the user to the first access transfer control function module, so that the first access transfer control function module sends second handover request information to the second access transfer control function module, where the second handover request information includes the second session transfer code and the unique identification code.
7. An inter-network switching apparatus, the apparatus comprising:
a third receiving module, configured to receive second handover request information sent by the first access transfer control function module when the first access transfer control function module cannot find the registration session information of the user, and the home subscriber module queries, according to the unique identifier of the user, a second access transfer control function module and a second session transfer code registered by the user, where the second handover request information includes the second session transfer code and the unique identifier of the user;
and the service module is used for providing switching service for the user according to the second session transfer code and the unique identification code of the user.
8. An inter-network handover apparatus, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of any of claims 1-4.
9. A computer-readable storage medium having computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-4.
CN201711494889.3A 2017-12-31 2017-12-31 Cross-network switching method, device, equipment and medium Active CN109996298B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711494889.3A CN109996298B (en) 2017-12-31 2017-12-31 Cross-network switching method, device, equipment and medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711494889.3A CN109996298B (en) 2017-12-31 2017-12-31 Cross-network switching method, device, equipment and medium

Publications (2)

Publication Number Publication Date
CN109996298A CN109996298A (en) 2019-07-09
CN109996298B true CN109996298B (en) 2021-11-09

Family

ID=67111644

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711494889.3A Active CN109996298B (en) 2017-12-31 2017-12-31 Cross-network switching method, device, equipment and medium

Country Status (1)

Country Link
CN (1) CN109996298B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102761929A (en) * 2012-07-09 2012-10-31 中兴通讯股份有限公司 Realizing method of IMS (IP multimedia core network subsystem) session switching and access switching control function
CN102802222A (en) * 2011-05-26 2012-11-28 中兴通讯股份有限公司 Method and system for acquiring an enhanced single radio voice call continuity (E-SRVCC) session transfer number for SRVCC (STN-SR)
CN103190187A (en) * 2010-11-12 2013-07-03 瑞典爱立信有限公司 Packet switched to circuit switched access handovers in an IMS architecture
CN104205886A (en) * 2013-12-03 2014-12-10 华为技术有限公司 Method and apparatus for maintaining call continuity
EP2993925A1 (en) * 2013-06-05 2016-03-09 Huawei Technologies Co., Ltd. Information transmission method, information modification method and apparatus
CN105792264A (en) * 2014-12-22 2016-07-20 华为技术有限公司 Fault processing method, device and system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3103281B1 (en) * 2014-02-06 2020-01-01 Telefonaktiebolaget LM Ericsson (publ) Multi-bearer connection control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103190187A (en) * 2010-11-12 2013-07-03 瑞典爱立信有限公司 Packet switched to circuit switched access handovers in an IMS architecture
CN102802222A (en) * 2011-05-26 2012-11-28 中兴通讯股份有限公司 Method and system for acquiring an enhanced single radio voice call continuity (E-SRVCC) session transfer number for SRVCC (STN-SR)
CN102761929A (en) * 2012-07-09 2012-10-31 中兴通讯股份有限公司 Realizing method of IMS (IP multimedia core network subsystem) session switching and access switching control function
EP2993925A1 (en) * 2013-06-05 2016-03-09 Huawei Technologies Co., Ltd. Information transmission method, information modification method and apparatus
CN104205886A (en) * 2013-12-03 2014-12-10 华为技术有限公司 Method and apparatus for maintaining call continuity
CN105792264A (en) * 2014-12-22 2016-07-20 华为技术有限公司 Fault processing method, device and system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SeDoC Solution 11 Update and Evaluation;Deutsche Telekom AG;《SA WG2 Meeting #116 S2-163711》;20160715;全文 *

Also Published As

Publication number Publication date
CN109996298A (en) 2019-07-09

Similar Documents

Publication Publication Date Title
CN107113677B (en) Method and apparatus for dual active connection handover
KR101420251B1 (en) Methods and apparatus for neighbor discovery of base stations in a communication system
US9426637B2 (en) Cellular wireless network and method of operation
US9794909B2 (en) Method and apparatus for paging terminated call in mobile communication system
US10568006B2 (en) Determining the need for a routing area update for packet switched handover in multi-operator core network
WO2013111217A1 (en) Mobile station, method for controlling mobile station, mobile communication system, mobile management device, and computer-readable medium
CN104170455A (en) Handling handover requests in a communications system
US8744445B2 (en) Method of handling handover message decoding and related communication device
CN106937345B (en) Method for returning to long term evolution network, mobile switching center and system
CN105338584A (en) Method for returning to LTE network and device thereof
EP2871874B1 (en) Location update method, device and system
US10251101B2 (en) Methods, network nodes, communication device, computer programs and computer program products for re-establishment of a connection
WO2015001387A1 (en) Lte discovery after system change
CN112702730B (en) Method and device for acquiring terminal capability and computer storage medium
CN103249019B (en) The processing method of a kind of single wireless voice calling continuity and system
CN109688610B (en) Method, device, equipment and storage medium for switching single-standby voice continuous service
US10136467B2 (en) Mobile terminated control method and related network devices
WO2016045728A1 (en) Domain selection for terminating voice call
CN109996298B (en) Cross-network switching method, device, equipment and medium
CN101960884B (en) Mobile communication system, method of handover between different types of access network, mobile terminal, and server
JP5387790B2 (en) Mobile station, mobile station control method, mobile communication system, mobility management apparatus, and program
CN111107607B (en) Method for determining access domain and auxiliary method for determining access domain
CN115604774A (en) Method, device and system for determining fallback Mobility Management Entity (MME)
CN118354375A (en) Communication method, device, communication equipment and storage medium
EP3001726A1 (en) Single radio voice call continuity operating method and device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant