CN111278164A - Voice service migration method, device, equipment and medium - Google Patents
Voice service migration method, device, equipment and medium Download PDFInfo
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- CN111278164A CN111278164A CN201811471059.3A CN201811471059A CN111278164A CN 111278164 A CN111278164 A CN 111278164A CN 201811471059 A CN201811471059 A CN 201811471059A CN 111278164 A CN111278164 A CN 111278164A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/18—Management of setup rejection or failure
Abstract
The invention discloses a voice service migration method, a voice service migration device, voice service migration equipment and voice service migration media. The method comprises the steps of acquiring a call request initiated by a terminal; according to the call request, enabling the network node MME to send a scale value QCI1 bearer establishment request; determining a cell where a terminal resides according to a call request, and determining an uplink interference average value of a Physical Resource Block (PRB) of the cell; judging whether the PRB uplink interference average value of the cell is larger than a preset high-interference trigger circuit domain fallback CSFB threshold or not; if yes, rejecting the QCI1 bearer establishment request, and enabling the terminal to trigger the CSFB to fall back to the second or third generation mobile communication technology 2G or 3G network, and enabling the call request to be established in the 2G or 3G network. According to the embodiment of the invention, the migration of the voice service can be realized, the condition that the rescue is carried out after the voice quality is deteriorated is avoided, and the risks of service establishment failure and call drop are reduced.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a voice service migration method, apparatus, device, and medium.
Background
In a strong interference scenario, the base station side may trigger voice service migration by detecting voice service quality (mainly packet loss). For the migration of the 4th Generation Mobile Communication technology (4G) Voice service in a strong interference scenario, there are two schemes currently, one of which is to switch from an Enhanced Single Radio Voice Call Continuity (eSRVCC) network to a Global System for Mobile Communication (GSM) network, and the other is to switch from an inter-frequency to a co-coverage 4G cell.
For the first scheme, after the voice service is established at the voice service migration time point, a certain time delay exists, which may cause the voice quality of the user to deteriorate within a period of time, and a call drop caused by access failure and handover failure due to high interference is easy to occur.
Aiming at the second scheme, when large-range atmospheric waveguide interference occurs, interference cells are mainly concentrated in rural and township areas, multi-layer network coverage cannot be realized, and inter-frequency migration in a voice service 4G network cannot be realized.
Disclosure of Invention
In order to solve at least one technical problem, embodiments of the present invention provide a method, an apparatus, a device, and a medium for migrating a voice service, which can implement migration of a voice service, avoid a situation that a rescue is performed after voice quality is deteriorated, and reduce risks of service establishment failure and call drop.
In a first aspect, an embodiment of the present invention provides a method for migrating a voice service, where the method includes:
acquiring a call request initiated by a terminal;
enabling a network node MME to send a scale value QCI1 bearer establishment request according to the call request;
determining a cell where the terminal resides according to the call request, and determining an uplink interference average value of a Physical Resource Block (PRB) of the cell;
judging whether the PRB uplink interference average value of the cell is larger than a preset high-interference trigger circuit domain fallback (CSFB) threshold or not;
if yes, rejecting the QCI1 bearer establishment request, and enabling the terminal to trigger the CSFB to fall back to a second or third generation mobile communication technology 2G or 3G network, so that the call request is established in the 2G or 3G network.
According to the voice service migration method provided by the invention, if not, the QCI1 bearer establishment request is completed, so that the call request is established in the fourth generation mobile communication technology 4G network.
According to the voice service migration method provided by the present invention, after rejecting the QCI1 bearer establishment request, the method further includes:
the internet protocol multimedia subsystem IMS is caused to issue 503 a failure message to the terminal.
According to the voice service migration method provided by the invention, the method further comprises the following steps:
and acquiring the call request initiated again in the 2G or 3G network after the terminal receives the 503 failure message.
According to the voice service migration method provided by the invention, the method further comprises the following steps:
and when the QCI1 bearer establishment request is refused, carrying an unavailable resource reason value.
According to the voice service migration method provided by the invention, the uplink interference average value of the PRB of the physical resource block of the cell comprises a result obtained by dividing the sum of the uplink interference of the subcarriers of each PRB of the cell by the number of the subcarriers of the PRB.
According to the voice service migration method provided by the present invention, the determining the cell where the terminal resides according to the call request includes:
determining a base station where the terminal resides according to the call request;
and determining the cell in which the terminal resides according to the base station in which the terminal resides.
According to the voice service migration method provided by the invention, the call request comprises a request INVITE message.
According to the voice service migration method provided by the invention, the preset high-interference triggered circuit domain fallback CSFB threshold comprises-105 dBm.
According to the voice service migration method provided by the invention, the terminal comprises a terminal supporting the long-term evolution voice bearer VoLTE.
In a second aspect, an embodiment of the present invention provides a voice service migration apparatus, where the apparatus includes:
the call request acquisition module is used for acquiring a call request initiated by a terminal;
a bearer establishment sending module, configured to enable the network node MME to send a scale value QCI1 bearer establishment request according to the call request;
an uplink interference determining module, configured to determine, according to the call request, a cell in which the terminal resides, and determine an uplink interference average value of a physical resource block PRB of the cell;
the judging module is used for judging whether the PRB uplink interference average value of the cell is larger than a preset high-interference trigger circuit domain fallback CSFB threshold or not;
and if so, rejecting the QCI1 bearer establishment request, and enabling the terminal to trigger the CSFB to fall back to a second or third generation mobile communication technology 2G or 3G network, so that the call request is established in the 2G or 3G network.
In a third aspect, an embodiment of the present invention provides a voice service migration apparatus, 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 embodiment of the invention provides a voice service migration method, a voice service migration device, voice service migration equipment and voice service migration media. The method comprises the steps of acquiring a call request initiated by a terminal; according to the call request, enabling the network node MME to send a scale value QCI1 bearer establishment request; determining a cell where a terminal resides according to a call request, and determining an uplink interference average value of a Physical Resource Block (PRB) of the cell; judging whether the PRB uplink interference average value of the cell is larger than a preset high-interference trigger circuit domain fallback CSFB threshold or not; if yes, rejecting the QCI1 bearer establishment request, and enabling the terminal to trigger the CSFB to fall back to the second or third generation mobile communication technology 2G or 3G network, and enabling the call request to be established in the 2G or 3G network. According to the embodiment of the invention, the migration of the voice service can be realized, the condition that the rescue is carried out after the voice quality is deteriorated is avoided, and the risks of service establishment failure and call drop are reduced.
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 is a flowchart illustrating a voice service migration method according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a voice service migration method according to another embodiment of the present invention;
fig. 3 shows a signaling flow diagram of a voice service migration method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a voice service migration apparatus according to an embodiment of the present invention;
fig. 5 shows a hardware structure diagram of a voice service migration apparatus according to an 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.
The following describes a voice service migration method, apparatus, device and medium according to an embodiment of the present invention in detail with reference to fig. 1 to 5. It should be noted that the examples are not intended to limit the scope of the present invention.
Fig. 1 is a flowchart illustrating a voice service migration method according to an embodiment of the present invention. As shown in fig. 1, the voice service migration method according to the embodiment of the present invention includes the following steps:
s110, acquiring a call request initiated by a terminal;
s120, enabling the network node MME to send a scale value QCI1 bearer establishment request according to the call request;
s130, determining a cell where the terminal resides according to the call request, and determining an uplink interference average value of a Physical Resource Block (PRB) of the cell;
s140, judging whether the PRB uplink interference average value of the cell is larger than a preset high-interference trigger circuit switched domain fallback (CSFB) threshold or not;
s150, if yes, rejecting the QCI1 bearer establishment request, and enabling the terminal to trigger the CSFB to fall back to the second or third generation mobile communication technology 2G or 3G network, so that the call request is established in the 2G or 3G network.
Further, the internet protocol multimedia subsystem IMS is enabled to send a 503 failure message to the terminal, and obtain a call request initiated again in the 2G or 3G network after the terminal receives the 503 failure message.
According to the embodiment of the invention, the migration of the voice service can be realized, the condition that the rescue is carried out after the voice quality is deteriorated is avoided, and the risks of service establishment failure and call drop are reduced.
Fig. 2 is a flowchart illustrating a voice service migration method according to another embodiment of the present invention. As shown in fig. 2, the voice service migration method according to the embodiment of the present invention includes the following steps:
and 3, step 4, if the Evolved Node B (eNodeB) detects that the average level of the uplink interference of the cell meets the 'high interference triggered Circuit Switched Fallback (CSFB) threshold', rejecting the MME to issue a QCI1 bearer establishment request, wherein the QCI1 bearer establishment request carries the cause value of the unavailable resource.
Here, according to the chinese mobile LTE specification, the base station may continuously monitor an average value of interference noise of subcarriers of each Physical Resource Block (PRB) of each cell under the base station, and if the interference noise is too high, the user access perception may be poor.
The uplink interference detection average value can be calculated by expression (1):
average value of uplink interference detection ('uplink interference detected on PRB 0' + 'uplink interference detected on PRB 1' + … + 'uplink interference detected on PRB 99')/100 (1)
And 5, 6 and 9, an internet protocol Multimedia Subsystem (IP Multimedia Subsystem, IMS) issues 503 a failure message (not providing the service) to the terminal, the terminal triggers CSFB, and the 2G is fallen back to establish the voice service.
and 8-9, the UE initiates a VOLTE call in the 4G network, and the call request is established in the 4G network.
According to the embodiment of the invention, the method for ensuring the voice service perception is realized by detecting the uplink interference of the 4G cell to trigger the voice service to fall back to the GSM network in the establishing stage. And triggering migration in the VOLTE voice service establishment stage, wherein the time point is advanced, thereby avoiding rescue after voice quality deterioration and reducing service establishment failure and call drop risks. The method can be applied to almost all high-interference scenes, and has wide application scenes.
Fig. 3 shows a signaling flow diagram of a voice service migration method according to an embodiment of the present invention. As shown in fig. 3, the signaling flow of the embodiment of the present invention includes:
1. a terminal (User Equipment, UE) sends an INVITE message to a network side, and initiates a VOLTE call flow.
2. A Policy and Charging Rules Function (PCRF) is started to establish a dedicated bearer.
3. The PCRF makes a Policy decision according to the media type and media description information carried in an AAR message issued by a Session Border Controller (SBC), provides an authorized Quality of Service (QoS) System, and sends a QoS and Policy and Charging Control (PCC) rule to a System Architecture Evolution Service Gateway (SAEGW) through an RAR message.
4. And the SAEGW receives the RAR message and reports an RAA response to the PCRF _ A.
5. And the PCRF sends an AAA response authorization request result message to the SBC according to the RAA message returned by the SAEGW.
6. And the SAEGW receives the RAR message and indicates the MME to establish the special bearer through a bearer establishment request Creat bearer request.
7. After receiving the credit Bearer request message, the MME sends an Evolved Radio Access Bearer (ERAB) setup request message to the eNodeB, for requesting activation of an Evolved Packet System (EPS) Bearer context.
8. The eNodeB sends an ERAB setup response message to the MME, which carries a response code 73 with no resource available (Noresources available), and rejects bearer establishment.
9. After receiving the ERAB setup response message, the MME sends a credit bearer response message to the SAEGW, which carries a response code 73(No resources available), and rejects bearer establishment.
10. After receiving the credit response message, the SAEGW indicates that the media plane fails through 503Service unavailable.
11. The SAEGW sends 503Service unavailable to the UE, indicating that the Service establishment fails.
12. After receiving the failure indication, the UE replies to an Address Complete Message (ACM).
13. And the UE sends an Extended Service Request message to the eNodeB according to the self-owned mechanism and continues to initiate the CSFB process.
14. After receiving the Extended Service Request message, the eNodeB replies a radio resource Control (radio resource Control RRC) Connection Release message, which carries GSM frequency point information.
15. UE initiates access and voice call flow at GSM side.
Fig. 4 shows a schematic structural diagram of a voice service migration apparatus according to an embodiment of the present invention. As shown in fig. 4, the voice service migration apparatus according to the embodiment of the present invention includes:
a call request obtaining module 401, configured to obtain a call request initiated by a terminal;
a bearer establishment sending module 402, configured to enable the network node MME to send a scale value QCI1 bearer establishment request according to the call request;
an uplink interference determining module 403, configured to determine, according to the call request, a cell in which the terminal resides, and determine an uplink interference average value of a physical resource block PRB of the cell;
a judging module 404, configured to judge whether an average value of PRB uplink interference of a cell is greater than a preset high-interference triggered circuit switched fallback CSFB threshold;
a call request establishing module 405, configured to reject the QCI1 bearer establishment request if the QCI1 bearer establishment request is rejected, so that the terminal triggers the CSFB to fall back to the second or third generation mobile communication technology 2G or 3G network, and the call request is established in the 2G or 3G network.
In an embodiment of the present invention, the call request establishing module 405 is specifically configured to, if not, complete the QCI1 bearer establishment request, so that the call request is established in the fourth generation mobile communication technology 4G network.
In an embodiment of the present invention, the call request establishing module 405 is specifically configured to enable the internet protocol multimedia subsystem IMS to issue 503 a failure message to the terminal.
In an embodiment of the present invention, the call request establishing module 405 is specifically configured to obtain a call request that is re-initiated in the 2G or 3G network after the terminal receives 503 the failure message.
In an embodiment of the present invention, the call request establishing module 405 is specifically configured to reject the QCI1 bearer establishment request and carry the unavailable resource cause value.
In an embodiment of the present invention, the uplink interference determining module 403 is specifically configured to determine the average value of uplink interferences of PRBs in a physical resource block of a cell, where the average value includes a result obtained by dividing the sum of uplink interferences of subcarriers of each PRB of the cell by the number of subcarriers of the PRB.
In an embodiment of the present invention, the call request obtaining module 401 is specifically configured to determine, according to the call request, a base station where the terminal resides;
and determining the cell in which the terminal resides according to the base station in which the terminal resides.
In an embodiment of the present invention, the call request obtaining module 401 is specifically configured to, the call request includes a request INVITE message.
In an embodiment of the present invention, the determining module 404 is specifically configured to set the preset high-interference triggered circuit domain fallback CSFB threshold to include-105 dBm.
In an embodiment of the present invention, the call request obtaining module 401 is specifically configured to enable the terminal to include a terminal supporting a voice over long term evolution (VoLTE) bearer.
In addition, the voice service migration method described in the embodiment of the present invention with reference to fig. 1 may be implemented by a voice service migration device. Fig. 5 is a schematic diagram illustrating a hardware structure of a voice service migration device according to an embodiment of the present invention.
Computing device 1000 includes input device 1001, input interface 1002, processor 1003, memory 1004, output interface 1005, and output device 1006.
The input interface 1002, the processor 1003, the memory 1004, and the output interface 1005 are connected to each other via a bus 1010, and the input device 1001 and the output device 1006 are connected to the bus 1010 via the input interface 1002 and the output interface 1005, respectively, and further connected to other components of the computing device 1000.
Specifically, the input device 1001 receives input information from the outside and transmits the input information to the processor 1003 via the input interface 1002; the processor 1003 processes the input information based on computer-executable instructions stored in the memory 1004 to generate output information, stores the output information temporarily or permanently in the memory 1004, and then transmits the output information to the output device 1006 through the output interface 1005; output device 1006 outputs the output information external to computing device 1000 for use by a user.
The computing device 1000 may perform the steps in the voice service migration method described above in this application.
Processor 1003 may be one or more Central Processing Units (CPUs). When the processor 601 or the processor 701 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
The memory 1004 may be, but is not limited to, one or more of Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM), compact disc read only memory (CD-ROM), a hard disk, and the like. The memory 1004 is used to store program codes.
It is understood that, in the embodiment of the present application, the functions of any one or all of the processing modules provided in fig. 4 may be implemented by the central processing unit 1003 shown in fig. 5.
The embodiment of the present invention further provides a computer-readable storage medium, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the steps in the voice service migration method according to the embodiment of the present invention are implemented.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When used in whole or in part, can be implemented in a computer program product that includes one or more computer instructions. When loaded or executed on a computer, cause the flow or functions according to embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL), or wireless (e.g., infrared, wireless, microwave, etc.)). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
All parts of the specification are described in a progressive mode, the same and similar parts of all embodiments can be referred to each other, and each embodiment is mainly introduced to be different from other embodiments. In particular, as to the apparatus and system embodiments, since they are substantially similar to the method embodiments, the description is relatively simple and reference may be made to the description of the method embodiments in relevant places.
Claims (13)
1. A method for voice service migration, the method comprising:
acquiring a call request initiated by a terminal;
enabling a network node MME to send a scale value QCI1 bearer establishment request according to the call request;
determining a cell where the terminal resides according to the call request, and determining an uplink interference average value of a Physical Resource Block (PRB) of the cell;
judging whether the PRB uplink interference average value of the cell is larger than a preset high-interference trigger circuit domain fallback (CSFB) threshold or not;
if yes, rejecting the QCI1 bearer establishment request, and enabling the terminal to trigger the CSFB to fall back to a second or third generation mobile communication technology 2G or 3G network, so that the call request is established in the 2G or 3G network.
2. The method of claim 1, further comprising:
and if not, completing the QCI1 bearer establishment request, and establishing the call request in a fourth generation mobile communication technology 4G network.
3. The method of claim 1, wherein after said rejecting said QCI1 bearer establishment request, further comprising:
the internet protocol multimedia subsystem IMS is caused to issue 503 a failure message to the terminal.
4. The method of claim 3, further comprising:
and acquiring the call request initiated again in the 2G or 3G network after the terminal receives the 503 failure message.
5. The method of claim 1, further comprising:
and when the QCI1 bearer establishment request is refused, carrying an unavailable resource reason value.
6. The method according to claim 1, wherein the PRB uplink interference average value of the cell comprises a result of dividing the sum of uplink interference of subcarriers of each PRB of the cell by the number of subcarriers of the PRB.
7. The method of claim 1, wherein the determining the cell in which the terminal is camped according to the call request comprises:
determining a base station where the terminal resides according to the call request;
and determining the cell in which the terminal resides according to the base station in which the terminal resides.
8. The method of claim 1, wherein the call request comprises a request INVITE message.
9. The method of claim 1, wherein the preset high-interference triggered circuit domain fallback CSFB threshold comprises-105 dBm.
10. The method of claim 1, wherein the terminal comprises a terminal supporting VoLTE over Long term evolution voice bearer.
11. A voice service migration apparatus, the apparatus comprising:
the call request acquisition module is used for acquiring a call request initiated by a terminal;
a bearer establishment sending module, configured to enable the network node MME to send a scale value QCI1 bearer establishment request according to the call request;
an uplink interference determining module, configured to determine, according to the call request, a cell in which the terminal resides, and determine an uplink interference average value of a physical resource block PRB of the cell;
the judging module is used for judging whether the PRB uplink interference average value of the cell is larger than a preset high-interference trigger circuit domain fallback CSFB threshold or not;
and if so, rejecting the QCI1 bearer establishment request, and enabling the terminal to trigger the CSFB to fall back to a second or third generation mobile communication technology 2G or 3G network, so that the call request is established in the 2G or 3G network.
12. A voice service migration 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 1-7.
13. 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 1-7.
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| CN112804720A (en) * | 2021-02-25 | 2021-05-14 | 北京小米移动软件有限公司 | Network switching method and device |
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| CN112804720A (en) * | 2021-02-25 | 2021-05-14 | 北京小米移动软件有限公司 | Network switching method and device |
| CN112804720B (en) * | 2021-02-25 | 2023-03-14 | 北京小米移动软件有限公司 | Network switching method and device |
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