CN108064455B - CSFB (Circuit switched Fall Back) result detection method and device and storage medium - Google Patents

CSFB (Circuit switched Fall Back) result detection method and device and storage medium Download PDF

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CN108064455B
CN108064455B CN201780001987.0A CN201780001987A CN108064455B CN 108064455 B CN108064455 B CN 108064455B CN 201780001987 A CN201780001987 A CN 201780001987A CN 108064455 B CN108064455 B CN 108064455B
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terminal
csfb
voice call
wcdma network
network
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CN108064455A (en
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曾元清
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Shenzhen Huantai Technology Co Ltd
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Shenzhen Huantai Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network

Abstract

The embodiment of the invention discloses a fall-back result detection method of circuit switched fall-back CSFB, which comprises the following steps: in the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service, detecting that a WCDMA network ignores a routing area update RAU request initiated by the terminal under the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request; detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal; and judging whether the CSFB falls back successfully at least based on the voice call state. The embodiment of the invention also discloses a fall-back result detection device and a storage medium of the circuit switched fall-back CSFB.

Description

CSFB (Circuit switched Fall Back) result detection method and device and storage medium
Technical Field
The present invention relates to the technical field of Circuit Switched Fallback (CSFB), and in particular, to a method and an apparatus for detecting a CSFB Fallback result, and a storage medium.
Background
Since wireless communication between a Long Term Evolution (LTE) terminal and a 2G/3G dual-mode terminal is a single-radio mode (Signal-radio mode), a dual-mode or multi-mode terminal with LTE and 2G/3G access capabilities cannot transmit 2G/3G circuit domain service signals when LTE access is used. In order to enable a terminal (UE) to perform Circuit domain (CS) services such as voice services under LTE access or camping, and to correctly handle Packet domain (PS) services being performed by the UE under LTE access, a CSFB technique has been developed.
In the CSFB procedure, an initiator of a phone call is called a calling party (MO), a receiver of the phone call is called a called party (MT), and the MO and the MT each have their own CSFB signaling flow. For the MT in the CSFB procedure, the occurrence of various abnormal situations will probabilistically cause the CSFB procedure to fail, and thus the call cannot be connected, and how to effectively detect the fall-back result of the CSFB in the abnormal scenario is particularly necessary.
Disclosure of Invention
In order to solve the existing technical problems, embodiments of the present invention provide a method and an apparatus for detecting a fallback result of a CSFB, and a storage medium, which can at least solve the above problems in the prior art.
The technical scheme of the embodiment of the invention is realized as follows:
a first aspect of an embodiment of the present invention provides a method for detecting a fallback result of a circuit switched fallback CSFB, where the method includes:
in the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service, detecting that a WCDMA network ignores a routing area update RAU request initiated by the terminal under the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request;
detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
determining whether the CSFB has successfully fallen back based at least on the voice call state; wherein the content of the first and second substances,
the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
In the foregoing solution, the determining whether the CSFB falls back successfully based on the voice call state includes:
and when the voice call of the terminal in the WCDMA network is determined to be interrupted based on the voice call state, determining that the CSFB falls back to fail.
In the above scheme, the method further comprises:
after the voice call in the WCDMA network is finished, detecting whether the terminal returns to the LTE network within a preset time length;
and when the terminal does not return to the LTE network within the preset time length, determining that the CSFB falls back to failure.
In the above scheme, the method further comprises:
and after the voice call in the WCDMA network is finished, detecting that the terminal performs an RAU flow in the WCDMA network, and determining that the CSFB falls back unsuccessfully.
In the above scheme, the method further comprises:
and detecting that the terminal initiates an attachment request, and determining that the CSFB falls back in failure.
In the above solution, the detecting a voice call state of the terminal in the WCDMA network includes:
and detecting the voice call state of the terminal in the WCDMA network under the simulated network environment.
A second aspect of the embodiments of the present invention provides a fall-back result detection apparatus for a circuit switched fall-back CSFB, including:
the detection unit detects that the WCDMA network ignores a routing area update RAU request initiated by the terminal under the WCDMA network in the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request; the terminal is also configured to detect a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
a determining unit configured to determine whether the CSFB has successfully fallen based on at least the voice call state;
the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
In the foregoing solution, the determining unit is further configured to determine that the CSFB fallback fails when it is determined that the voice call of the terminal in the WCDMA network is interrupted based on the voice call state.
In the above scheme, the detecting unit is further configured to detect whether the terminal returns to the LTE network within a preset duration after the voice call in the WCDMA network is ended;
correspondingly, the determining unit is further configured to determine that the CSFB fallback fails when the terminal does not return to the LTE network within the preset duration.
In the above solution, the detecting unit is further configured to detect that the terminal performs an RAU procedure in the WCDMA network after the voice call in the WCDMA network is finished;
correspondingly, the determining unit is further configured to determine that the CSFB fallback fails after detecting that the terminal performs an RAU procedure in the WCDMA network.
In the above solution, the detecting unit is further configured to detect that the terminal initiates an attach request;
correspondingly, the determining unit is further configured to determine that the CSFB fallback fails after detecting that the terminal initiates an attach request.
In the above solution, the detecting unit is further configured to detect a voice call state of the terminal in the WCDMA network under the simulated network environment.
A third aspect of the embodiments of the present invention provides a fall-back result detection apparatus for a circuit switched fall-back CSFB, including: a processor and a memory for storing a computer program operable on the processor, wherein the processor is operable to perform the steps of the method when executing the computer program.
A fourth aspect of the embodiments of the present invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method described above.
In the CSFB fallback result detection method, device and storage medium according to the embodiments of the present invention, in a CSFB procedure executed based on an indication information indicating that a terminal performs a voice service using a preset CSFB optimization scheme, it is detected that a WCDMA network ignores a routing area update RAU request initiated by the terminal in the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request; detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal; determining whether the CSFB has successfully fallen back based at least on the voice call state; the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB process is triggered and executed when the terminal receives the paging message sent by the LTE base station, and by adopting the scheme provided by the embodiment of the invention, the voice call state in the GSM network in the CSFB process can be detected under the scene that the WCDMA cell appointed by the network side ignores the RAU flow of the terminal for carrying out routing area update, so that the fallback result of the CSFB can be finally determined, and thus, in the subsequent CSFB process, the optimization scheme can be further perfected to improve the success probability of the CSFB process so as to improve the call experience of a user.
Drawings
Fig. 1 is a schematic flow chart of a method for detecting a fallback result of a CSFB according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for detecting a fallback result in a CSFB according to an embodiment of the present invention;
FIG. 3 is a first diagram of an emulation code in accordance with an embodiment of the present invention;
FIG. 4 is a second diagram of an emulation code of an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fall-back result detection apparatus of a CSFB according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a hardware structure of a fall-back result detection apparatus of a CSFB according to an embodiment of the present invention.
Detailed Description
So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.
Under normal conditions, the terminal with the CSFB function can search the LTE network when being started, complete the joint registration of the LTE/2G network and carry out voice calling and called.
The CSFB procedure comprises three phases: 1) the UE initiates a call (corresponding to MO) in the LTE network or receives a paging (corresponding to MT); 2) the UE falls back under the guidance of an LTE network and searches a proper GSM cell/WCDMA cell for access; 3) the UE reads the GSM cell/WCDMA cell system broadcast message and establishes a voice call.
With the continuous expansion of the LTE base station scale and the network quitting and replating of part of old GSM/TD-SCDMA base stations, the configuration of the original network deployment on the signaling side of the base station is not updated in real time, and the configuration information issued by the network to the UE is inconsistent with the actual deployment situation, so that various abnormal situations, such as incapability of connection, failure of repeated connection, etc., occur in the voice call across systems (inter rat), which is CSFB.
In order to solve the call problem caused by the incompatible situation of network deployment, various optimization means are adopted by terminal manufacturers to improve the call experience, and in order to verify the rationality of the CSFB optimization scheme, it is necessary to detect the CSFB process in an abnormal scene so as to improve the CSFB optimization scheme in a targeted manner.
The CSFB fallback scheme adopts a 3GPP R8 redirection fallback scheme, and during a CSFB deployment process, a CSFB procedure is probabilistically abnormal due to a problem of parameter configuration. Therefore, the embodiment of the invention provides a method for detecting a CSFB fallback result in a scenario where a WCDMA cell specified by a network side ignores a flow of routing area update RAU performed by a terminal.
In various embodiments of the present invention, in a CSFB procedure executed based on an indication information indicating that a terminal performs a voice service using a preset CSFB optimization scheme, it is detected that a wideband code division multiple access, WCDMA, network ignores a routing area update, RAU, request initiated by the terminal in the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request; detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal; determining whether the CSFB has successfully fallen back based at least on the voice call state; the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
By adopting the scheme provided by the embodiment of the invention, the voice call state in the GSM network in the CSFB process can be detected under the scene that the WCDMA cell appointed by the network side ignores the RAU flow of the terminal for updating the routing area, so that the fallback result of the CSFB can be finally determined, and thus, in the subsequent CSFB process, the optimization scheme can be further perfected to improve the success probability of the CSFB process, and the call experience of a user can be improved.
Fig. 1 is a schematic flow chart of a method for detecting a fallback result of a CSFB provided in an embodiment of the present invention, and as shown in fig. 1, the method for detecting a fallback result of a CSFB includes the following steps:
step 101: in the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service, detecting that a WCDMA network ignores a routing area update RAU request initiated by the terminal under the WCDMA network;
here, the RAU request is a routing area update request for a packet switched PS domain resource request initiated by the terminal after completion of the circuit switched CS domain based voice call setup in the WCDMA network.
The indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
In practical application, a network environment applied to the embodiment of the invention can be constructed in a laboratory simulation mode, that is, the scene where the terminal is located in the embodiment of the invention is obtained in a simulation mode, so that on one hand, a worker does not need to go to a field for detection, and therefore, the cost of the worker can be reduced; on the other hand, the scene of the site may include other factors, so as to affect the detection result, so that the simulation network according to the embodiment of the present invention can stably reproduce the CSFB abnormal scene occurring in the scene of the site, and can eliminate the influence of other factors on the detection result in the scene described in the embodiment of the present invention.
Based on this, in some embodiments, a voice call state of the terminal in the WCDMA network, which is located in the emulated network environment, is detected.
Step 102: detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
step 103: and judging whether the CSFB falls back successfully at least based on the voice call state.
In an embodiment, when it is determined that the voice call of the terminal in the WCDMA network is interrupted (i.e., not continued) based on the voice call state, it is determined that the CSFB fallback has failed.
In another specific embodiment, after the voice call in the WCDMA network is finished, detecting whether the terminal returns to the LTE network within a preset time length; and when the terminal does not return to the LTE network within the preset time length, determining that the CSFB falls back to failure. Here, in practical applications, the preset time period may be set as needed.
In a specific scene, when it is detected that the voice call of the terminal in the WCDMA network is not interrupted, that is, the terminal maintains the voice call after the voice call of the WCDMA network is established, after the voice call in the WCDMA network is ended, detecting whether the terminal returns to the LTE network within a preset time length; and when the terminal does not return to the LTE network within the preset time length, determining that the CSFB falls back to failure. Correspondingly, when the terminal returns to the LTE network within the preset time length, the CSFB fallback success is determined. That is to say, when it is detected that the voice call of the terminal in the WCDMA network is not interrupted, that is, the terminal maintains the voice call after the voice call of the WCDMA network is established, and after the voice call in the WCDMA network is ended, the terminal returns to the LTE network within the preset time period, it is determined that the CSFB fallback is successful.
In another specific embodiment, after the voice call in the WCDMA network is ended, it is detected that the terminal performs an RAU procedure in the WCDMA network, and it is determined that the CSFB fallback fails.
In another specific embodiment, it is detected that the terminal initiates an attach request, and it is determined that the CSFB fallback has failed.
Here, in actual application, it may be detected through related signaling whether the voice call of the terminal in the WCDMA network is interrupted, and similarly, it is detected through related signaling whether the terminal returns to the LTE network within a preset time duration, it is determined through related signaling whether the terminal ends in the voice call, an RAU flow is performed in the WCDMA network, and after it is determined through corresponding signaling that the request for PS resources fails (for example, the request for PS resources fails due to the WCDMA network ignoring the RAU request), an attach request is initiated, and so on.
In the method provided by the embodiment of the invention, in the process of executing CSFB based on the indication information of voice service of an indication terminal by adopting a preset CSFB optimization scheme, a Wideband Code Division Multiple Access (WCDMA) network is detected to ignore a Routing Area Update (RAU) request initiated by the terminal under the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request; detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal; determining whether the CSFB has successfully fallen back based at least on the voice call state; the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB process is triggered and executed when the terminal receives the paging message sent by the LTE base station, and by adopting the scheme provided by the embodiment of the invention, the voice call state under the GSM network in the CSFB process can be detected under the scene that the WCDMA cell appointed by the network side ignores the RAU flow carried out by the terminal, so that the fallback result of the CSFB can be finally determined, and thus, in the subsequent CSFB process, the optimization scheme can be further perfected to improve the success probability of the CSFB process so as to improve the call experience of users.
In addition, the voice call state of the terminal in the WCDMA network under the simulation network environment is detected, a simulation mode is adopted, workers do not need to go to the site, and other factors influencing detection can be removed, so that the personnel cost can be greatly reduced, and meanwhile, the influence of other factors on the detection result under the scene described by the embodiment of the invention can be eliminated.
The invention is described in more detail below with reference to an application example.
In the embodiment of the application, a network environment is constructed through a simulation platform, and the network environment comprises a Frequency Division Duplex (FDD) -LTE cell, a WCDMA cell and a GSM cell; and configuring WCDMA 1 as the information of the neighboring cell in the LTE SIB, not configuring the GSM cell, and configuring the information of the LTE neighboring cell in the WCDMA SIB 18.
The abnormal scene of the application embodiment is as follows: because of the communication problem between the Serving GPRS Support Node (SGSN) of the Routing Area (RA) registered by the terminal before and the SGSN of the RA falling back currently, the WCDMA cell appointed by the network side ignores the UE to carry out RAU flow access, and under the condition, the terminal can still utilize CS resources to complete CSFB, thereby verifying the validity and rationality of the terminal side conversation optimization scheme
As shown in fig. 2, the method for detecting a CSFB fallback result in the present application embodiment includes the following steps:
step 201: UE registers on an LTE cell and carries out an attachment process;
specifically, the UE is an MT, and after the UE is powered on, an Evolved Packet System (EPS) and International Mobile Subscriber Identity (IMSI) attach procedure is first performed.
In the process, the UE is triggered to send an Attach Request message (Attach Request) to the LTE base station, and an Attach Accept message (Attach Accept) sent by the LTE base station is received, wherein the Attach Accept message carries indication information for indicating the terminal to adopt a preset CSFB optimization scheme for voice service. Fig. 3 is a first schematic diagram of an emulation code according to an embodiment of the present invention, where: IMS voice over PS (V) ═ Not supported (0), and represents the instruction information.
Step 202: the network side triggers the MT CSFB flow, the network side sends a Paging message (Paging) to the UE, and the CSFB flow is started;
here, in practical application, the MO needs to initiate a call to the MT first, and then the MT receives the paging message sent by the network side.
Specifically, after receiving an initial address REQUEST (IAM) incoming message, a Mobile Switching Center (MSC) in the network sends an SGsAP-PAGING-REQUEST message to an Mobility Management Entity (MME) according to existing SGs association and MME information, where the SGsAP-PAGING-REQUEST message carries the following information: IMSI, Temporary Mobile Subscriber Identity (TMSI), Service identifier (Service indicator), calling number, location area information.
After receiving the message, the MME sends a Paging message to the base station, and the base station initiates a Paging flow of an air interface. UE establishes connection and sends Extended Service Request message to MME, MME sends SGsAP-Service-Request message to MSC, MSC receives the message, and MSC does not resend paging Request message to MME. In order to avoid the overlong waiting time of the calling party in the call connection process, the MSC receives the SGs Service Request message containing the idle state indication and firstly informs the calling party that the calling party is in the connection process. The MME sends an Initial UE Context Setup message to a base station, wherein the Initial UE Context Setup message carries a CS feedback Indicator, and the CS feedback Indicator is used for indicating that the base station UE needs to fall back to a UMTS Terrestrial Radio Access Network (UTRAN) or a GSM/EDGE Radio Access Network (GERAN, GSM EDGE Radio Access Network) due to CSFB service.
In the attach procedure, the UE receives an LTE _ RRCConnectionRelease signaling, i.e., a redirection command, sent by the LTE base station. The redirection command carries the frequency point information of the designated WCDMA cell, that is, the frequency point information of the target WCDMA cell.
As shown in fig. 4, the base station issues an R8 redirection command (rrcConnectionRelease _ R8(0)) to the UE, where the command carries frequency point information of the target WCDMA cell, so that the UE can conveniently access the target WCDMA cell based on the frequency point information carried in the R8 redirection command.
Step 203: after the UE accesses the WCDMA cell according to the appointed frequency point information (namely the frequency point information of the target WCDMA cell), an RRC Request is initiated, the network side issues CS call resources, a Radio Access Bearer (RAB) setup, and the voice call establishment is completed; at this time, simulation is carried out through a simulation platform: the WCDMA cell ignores subsequent RAU requests for PS resource requests.
At this time, checking whether the voice call state of the CS domain is affected by the UE in this case; whether FastReturn can be successfully returned to the LTE network after the call is finished or not, namely whether the FastReturn can be successfully returned to the LTE network within the preset time or not.
Specifically, the method comprises the following steps:
step 204: checking whether the voice call state of the CS domain is not affected in this case, that is, detecting whether the UE can maintain the voice call in this case, if so, executing step 205; otherwise, indicating that the CSFB fallback fails, that is, the preset CSFB optimization scheme fails;
step 205: and detecting whether the UE returns to the LTE network within a preset time after the call is ended, if so, indicating that the CSFB falls successfully, otherwise, indicating that the CSFB falls failed.
Step 206: judging whether UE initiates an attachment request after the RAU requests PS resources unsuccessfully; if so, indicating the CSFB fallback failure. Otherwise, the CSFB falls successfully.
In practical applications, the execution steps of step 204 and step 206 may be reversed, and the present embodiment does not limit the execution order of step 204 and step 206.
When the UE cannot return to the LTE network within the preset duration, the UE may attempt to perform an RAU procedure in the WCDMA network, which indicates that the optimization scheme fails. That is, whether to attempt RAU flow in WCDMA network after the call is finished is detected, if yes, it indicates CSFB fallback failure, otherwise, it indicates CSFB fallback success.
Here, according to the preset CSFB optimization scheme, when the UE finishes a normal call in the WCDMA network, the UE should quickly return to the LTE network.
In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a device for detecting a fallback result of a CSFB, where as shown in fig. 5, the device includes:
a detecting unit 51, configured to detect that a wideband code division multiple access WCDMA network ignores a routing area update RAU request initiated by a terminal in a WCDMA network, in a CSFB executing process based on an indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform a voice service; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request; the terminal is also configured to detect a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
a determining unit 52 configured to determine whether the CSFB fallback is successful at least based on the voice call state;
the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
In an embodiment, the determining unit 52 is further configured to determine that the CSFB fallback fails when it is determined that the voice call of the terminal in the WCDMA network is interrupted based on the voice call state.
In another specific embodiment, the detecting unit 51 is further configured to detect whether the terminal returns to the LTE network within a preset time after the voice call in the WCDMA network is ended;
correspondingly, the determining unit 52 is further configured to determine that the CSFB fallback fails when the terminal does not return to the LTE network within the preset time duration.
In another specific embodiment, the detecting unit 51 is further configured to detect that the terminal performs an RAU procedure in the WCDMA network after the voice call in the WCDMA network is ended;
correspondingly, the determining unit 52 is further configured to determine that the CSFB fallback fails after detecting that the terminal performs an RAU procedure in the WCDMA network.
In another specific embodiment, the detecting unit 51 is further configured to detect that the terminal initiates an attach request;
correspondingly, the determining unit 52 is further configured to determine that the CSFB fallback fails after detecting that the terminal initiates an attach request.
In another embodiment, the detecting unit 51 is further configured to detect a voice call state of the terminal in the WCDMA network under the simulated network environment.
In practical applications, the detecting unit 51 and the determining unit 52 are both implemented by a processor, wherein the processor may be a Central Processing Unit (CPU), a microprocessor unit (MPU), a Digital Signal Processor (DSP), or a programmable gate array (FPGA).
It should be noted that: in the CSFB fallback result detection apparatus according to the above embodiment, when performing the CSFB fallback result detection, only the above-mentioned division of the program modules is taken as an example, and in practical applications, the above-mentioned processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the above-mentioned processing. In addition, the fall-back result detection apparatus of the CSFB and the fall-back result detection method of the CSFB provided in the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Based on the above hardware implementation of each unit in the CSFB fallback result detection apparatus, in order to implement the embodiment of the present invention, an embodiment of the present invention further provides a CSFB fallback result detection apparatus, as shown in fig. 6, where the apparatus 60 includes: a processor 61 and a memory 62 configured to store computer programs capable of running on the processor,
wherein the processor 61 is configured to execute, when running the computer program, the following:
in the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service, detecting that a WCDMA network ignores a routing area update RAU request initiated by the terminal under the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request;
detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
determining whether the CSFB has successfully fallen back based at least on the voice call state; wherein the content of the first and second substances,
the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
In an embodiment, the determining whether the CSFB fallback is successful based on the voice call state includes:
and when the voice call of the terminal in the WCDMA network is determined to be interrupted based on the voice call state, determining that the CSFB falls back to fail.
In another specific embodiment, when the processor 61 is configured to execute the computer program, the method further includes:
after the voice call in the WCDMA network is finished, detecting whether the terminal returns to the LTE network within a preset time length;
and when the terminal does not return to the LTE network within the preset time length, determining that the CSFB falls back to failure.
In another specific embodiment, when the processor 61 is configured to execute the computer program, the method further includes:
and after the voice call in the WCDMA network is finished, detecting that the terminal performs an RAU flow in the WCDMA network, and determining that the CSFB falls back unsuccessfully.
In another specific embodiment, when the processor 61 is configured to execute the computer program, the method further includes:
and detecting that the terminal initiates an attachment request, and determining that the CSFB falls back in failure.
In another embodiment, the detecting the voice call state of the terminal in the WCDMA network includes:
and detecting the voice call state of the terminal in the WCDMA network under the simulated network environment.
In practice, of course, the various components of the device 60 are coupled together by a bus system 63, as shown in FIG. 6. It will be appreciated that the bus system 63 is used to enable communications among the components. The bus system 63 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 63 in FIG. 6.
Here, in practical applications, the memory may be implemented by any type of volatile or non-volatile storage device, or a combination thereof. The nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic Random Access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium having a memory and a processor reading the information in the memory and combining the hardware to perform the steps of the method.
Embodiments of the present invention also provide a computer-readable storage medium, such as a memory, comprising a computer program, which is executable by a processor of a fall back result detection apparatus of a CSFB to perform the steps of the aforementioned method. The computer readable storage medium can be Memory such as FRAM, ROM, programmable read only Memory PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories.
Further, the computer readable storage medium has a computer program stored thereon, wherein the computer program when executed by a processor realizes the steps of:
in the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service, detecting that a WCDMA network ignores a routing area update RAU request initiated by the terminal under the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request;
detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
determining whether the CSFB has successfully fallen back based at least on the voice call state; wherein the content of the first and second substances,
the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
In an embodiment, the determining whether the CSFB fallback is successful based on the voice call state includes:
and when the voice call of the terminal in the WCDMA network is determined to be interrupted based on the voice call state, determining that the CSFB falls back to fail.
In another embodiment, the computer program when executed by the processor further performs the steps of:
after the voice call in the WCDMA network is finished, detecting whether the terminal returns to the LTE network within a preset time length;
and when the terminal does not return to the LTE network within the preset time length, determining that the CSFB falls back to failure.
In another embodiment, the computer program when executed by the processor further performs the steps of:
and after the voice call in the WCDMA network is finished, detecting that the terminal performs an RAU flow in the WCDMA network, and determining that the CSFB falls back unsuccessfully.
In another embodiment, the computer program when executed by the processor further performs the steps of:
and detecting that the terminal initiates an attachment request, and determining that the CSFB falls back in failure.
In another embodiment, the detecting the voice call state of the terminal in the WCDMA network includes:
and detecting the voice call state of the terminal in the WCDMA network under the simulated network environment.
The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
In the embodiments provided in the present invention, it should be understood that the disclosed method and intelligent device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Industrial applicability
The embodiment of the invention can detect the voice call state in the GSM network in the CSFB process under the scene that the WCDMA cell appointed by the network side ignores the RAU flow of the terminal for updating the routing area, thereby finally determining the fallback result of the CSFB, and thus, in the subsequent CSFB process, the optimization scheme can be further perfected to improve the success probability of the CSFB process so as to improve the call experience of users.

Claims (14)

1. A method for detecting a fallback result of a Circuit Switched Fallback (CSFB), the method comprising:
in the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service, detecting that a WCDMA network ignores a routing area update RAU request initiated by the terminal under the WCDMA network; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request;
detecting a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
determining whether the CSFB has successfully fallen back based at least on the voice call state; wherein the content of the first and second substances,
the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
2. The method of claim 1, wherein the determining whether the CSFB fallback is successful based on the voice call state comprises:
and when the voice call of the terminal in the WCDMA network is determined to be interrupted based on the voice call state, determining that the CSFB falls back to fail.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
after the voice call in the WCDMA network is finished, detecting whether the terminal returns to the LTE network within a preset time length;
and when the terminal does not return to the LTE network within the preset time length, determining that the CSFB falls back to failure.
4. The method of claim 1, further comprising:
and after the voice call in the WCDMA network is finished, detecting that the terminal performs an RAU flow in the WCDMA network, and determining that the CSFB falls back unsuccessfully.
5. The method of claim 1, further comprising:
and detecting that the terminal initiates an attachment request, and determining that the CSFB falls back in failure.
6. The method of claim 1, wherein the detecting the voice call state of the terminal in the WCDMA network comprises:
and detecting the voice call state of the terminal in the WCDMA network under the simulated network environment.
7. A fall-back result detection apparatus of a circuit switched fall-back CSFB, comprising:
the detection unit is configured to detect that a Wideband Code Division Multiple Access (WCDMA) network ignores a Routing Area Update (RAU) request initiated by a terminal under the WCDMA network in a CSFB execution process based on indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice service; the RAU request is a routing area updating request which is initiated by the terminal after the voice call establishment based on the circuit switching CS domain in the WCDMA network is completed and aims at a packet switching PS domain resource request; the terminal is also configured to detect a voice call state of the terminal in the WCDMA network in a state that the WCDMA network ignores the RAU request initiated by the terminal;
a determining unit configured to determine whether the CSFB has successfully fallen based on at least the voice call state;
the indication information is carried in an attachment acceptance message sent by the LTE base station to the terminal; the attachment acceptance message is sent by the LTE base station after the terminal sends an attachment request message to the LTE base station; the CSFB procedure is triggered to be executed when the terminal receives the paging message sent by the LTE base station.
8. The apparatus according to claim 7, wherein the determining unit is further configured to determine that the CSFB fallback has failed when it is determined that the voice call of the terminal in the WCDMA network is interrupted based on the voice call status.
9. The detecting device according to claim 7 or 8, wherein the detecting unit is further configured to detect whether the terminal returns to the LTE network within a preset duration after the voice call in the WCDMA network is ended;
correspondingly, the determining unit is further configured to determine that the CSFB fallback fails when the terminal does not return to the LTE network within the preset duration.
10. The detecting device according to claim 7, wherein the detecting unit is further configured to detect that the terminal performs RAU procedures in the WCDMA network after the voice call in the WCDMA network is finished;
correspondingly, the determining unit is further configured to determine that the CSFB fallback fails after detecting that the terminal performs an RAU procedure in the WCDMA network.
11. The detection apparatus according to claim 7, wherein the detection unit is further configured to detect that the terminal initiates an attach request;
correspondingly, the determining unit is further configured to determine that the CSFB fallback fails after detecting that the terminal initiates an attach request.
12. The detecting device according to claim 7, wherein the detecting unit is further configured to detect a voice call state of the terminal in the WCDMA network under the emulated network environment.
13. A fall-back result detection apparatus of a circuit switched fall-back CSFB, comprising: a processor and a memory for storing a computer program operable on the processor, wherein the processor is operable to perform the steps of the method of claims 1 to 6 when executing the computer program.
14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of claims 1 to 6.
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