WO2019061440A1 - Csfb result detection method and device, and storage medium - Google Patents

Abstract

Disclosed in the embodiments of the present invention are a circuit switched fallback (CSFB) result detection method, comprising: in a process of performing CSFB on the basis of indication information indicating that a terminal uses a preset CSFB prioritization scheme for voice service, detecting the voice call state of the terminal in a designated second target wideband code division multiple access (WCDMA) cell, the voice call of the terminal in the designated second target WCDMA cell being triggered after the voice call establishment of a circuit switch (CS) domain of a designated first target WCDM cell fails due to a weakening signal of the designated first target WCDMA cell; and determine whether the CSFB succeeds or not on the basis of the detected voice call state. Also disclosed in the embodiments of the present invention are a CSFB result detection device and a storage medium.

Description

Method and device for detecting falling result of CSFB, storage medium Technical field

The present invention relates to the field of CSFB (Circuit Switched Fallback), and in particular, to a CSFB fallback result detecting method and apparatus, and a storage medium.

Background technique

Since long-term evolution (LTE, Long Term Evolution) and 2G/3G dual-mode terminals are wireless-signal-mode, a dual-mode or multi-mode terminal with LTE and 2G/3G access capabilities, When using LTE access, 2G/3G circuit domain service signals cannot be transmitted. In order to enable the terminal (UE, User Equipment) to perform a CS (Circuit Switched) service, such as voice, and the UE can perform the packet domain (PS, Packet Switch) under the LTE access of the UE. The business is processed correctly, resulting in CSFB technology.

In the CSFB process, the originator of the telephone is called the caller (MO, Mobile Origination), the receiver of the call is called the called (MT, Mobile Termination), and the MO and the MT each have their own CSFB signaling flow. For the MT in the CSFB process, the occurrence of various abnormal conditions will probabilistically cause the CSFB process to fail, which may result in the call being unable to be connected. How to effectively detect the CSFB fallback result in an abnormal scenario is particularly necessary.

Summary of the invention

In order to solve the existing technical problems, the embodiments of the present invention provide a CSFB fallback result detecting method and device, and a storage medium, which can solve at least the above problems in the prior art.

The technical solution of the embodiment of the present invention is implemented as follows:

The first aspect of the embodiment of the present invention provides a fallback result detection of a circuit domain falling back CSFB Method, the method comprising:

In the process of performing CSFB based on the indication information indicating that the terminal performs the voice service by using the preset CSFB optimization scheme, detecting the voice call state of the terminal in the designated second target wideband code division multiple access WCDMA cell; the terminal is specified The second target WCDMA cell voice call is triggered after the designated first target WCDMA cell signal becomes weak and the voice call establishment failure of the circuit switched CS domain of the first target WCDMA cell is triggered;

Determining whether the CSFB is successfully dropped based on the detected voice call state; wherein

The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB process is The terminal triggers execution when receiving the paging message sent by the LTE base station.

In the foregoing solution, the determining, according to the detected voice call state, whether the CSFB is successfully dropped, includes:

When it is detected that the terminal does not request the resource of the second target WCDMA cell and establish a voice call, it is determined that the CSFB fallback fails.

In the foregoing solution, the determining, according to the detected voice call state, whether the CSFB is successfully dropped, includes:

When it is determined that the voice call of the terminal in the second target WCDMA cell is interrupted based on the voice call state, determining that the CSFB fallback fails.

In the above solution, the method further includes:

After the end of the voice call in the second target WCDMA cell, detecting whether the terminal returns to the LTE network within a preset time period;

When the terminal does not return to the LTE network within the preset duration, it is determined that the CSFB fallback fails.

In the above solution, the method further includes:

After the end of the voice call, detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell, determining that the CSFB fallback fails.

In the foregoing solution, the detecting, by the terminal, a voice call state in a specified second target wideband code division multiple access WCDMA cell, includes:

Detecting a voice call state of the terminal in the second target WCDMA cell in the simulated network environment.

A second aspect of the embodiments of the present invention provides a fallback result detecting apparatus for a circuit domain fallback CSFB, including:

The detecting unit is configured to detect a voice call state of the terminal in the designated second target wideband code division multiple access WCDMA cell in the process of performing CSFB according to the indication information indicating that the terminal uses the preset CSFB optimization scheme to perform voice service; The voice call of the terminal in the designated second target WCDMA cell is triggered after the designated first target WCDMA cell signal becomes weak, so that the voice call establishment failure of the circuit switched CS domain of the first target WCDMA cell is triggered. of;

Determining, configured to determine whether the CSFB is successfully dropped based on the detected voice call state;

The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB process is The terminal triggers execution when receiving the paging message sent by the LTE base station.

In the foregoing solution, the determining unit is further configured to: when detecting that the terminal does not request the resource of the second target WCDMA cell and establish a voice call, determine that the CSFB fallback fails.

In the above solution, the determining unit is further configured to determine, when the voice call of the second target WCDMA cell is interrupted based on the voice call state, determine the CSFB Fallback failed.

In the above solution, the detecting unit is further configured to: after the end of the voice call in the second target WCDMA cell, detect whether the terminal returns to the LTE network within a preset duration;

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 foregoing solution, the detecting unit is further configured to: after the end of the voice call, detect that the terminal performs a routing area update RAU procedure in the first target WCDMA cell;

Correspondingly, the determining unit is further configured to determine that the CSFB fallback fails after detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell.

In the above solution, the detecting unit is further configured to detect a voice call state of the terminal in the second target WCDMA cell in the simulated network environment.

A third aspect of the embodiments of the present invention provides a fallback result detecting apparatus for a circuit domain fallback CSFB, including: a processor and a memory for storing a computer program capable of running on a processor, wherein the processor is used to operate In the case of a computer program, the steps of the method described above are performed.

A fourth aspect of the embodiments of the present invention provides a computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement the steps of the method described above.

The method and device for detecting the fallback result of the CSFB according to the embodiment of the present invention, and the storage medium, in the process of performing CSFB based on the indication information indicating that the terminal uses the preset CSFB optimization scheme to perform voice service, detecting that the terminal is in the designated second a voice call state in a target wideband code division multiple access WCDMA cell; the voice call of the terminal in the designated second target WCDMA cell is weakened at the designated first target WCDMA cell signal so that the first target WCDMA is in the first target After the voice call establishment of the circuit switched CS domain of the cell is failed, the system determines whether the CSFB is successfully dropped according to the detected voice call state; wherein the indication information is And being carried in the attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; and the CSFB process is that the terminal receives the The execution is triggered when the paging message sent by the LTE base station is described. According to the solution provided by the embodiment of the present invention, when the target WCDMA cell signal specified by the network side becomes weak and the terminal access fails, the terminal uses the WCDMA cell resource to perform the voice call state in the CSFB process, thereby finally The CSFB fallback result is determined, so that in the subsequent CSFB process, the optimization scheme can be further improved to improve the probability of the CSFB process success, so as to improve the user's calling experience.

DRAWINGS

1 is a schematic flowchart of a method for detecting a fallback result of a CSFB according to an embodiment of the present invention;

2 is a schematic flowchart of a method for detecting a fallback result of a CSFB according to an embodiment of the present invention;

3 is a schematic diagram 1 of an emulation code according to an embodiment of the present invention;

4 is a schematic diagram 2 of a simulation code according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a CSFB fallback result detecting apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram showing the hardware structure of a CSFB fallback result detecting apparatus according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Under normal circumstances, the CSFB-enabled terminal can search for the LTE network, complete the LTE/2G network joint registration, and be able to voice call and call.

The CSFB process consists of three phases: 1) the UE initiates a call (corresponding to MO) on the LTE network, or receives a page (corresponding to the MT); 2) the UE falls back under the guidance of the LTE network and searches for the appropriate The GSM cell/WCDMA cell accesses; 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 and the retreat and re-farming of some old GSM/TD-SCDMA base stations, the configuration of the original network deployed on the base station signaling side is not updated in real time, and the network is sent to the UE. The configuration information is inconsistent with the actual deployment situation, which leads to various abnormal situations such as CSFB inter-system (InterRAT) voice calls, such as failure to connect, repeated connection failure, and the like.

In order to solve the call problem caused by such network deployment incompatibility, various terminal manufacturers have adopted various optimization methods to improve the call experience. To verify the rationality of the CSFB optimization scheme, it is necessary to perform the CSFB process in the abnormal scenario. Detecting in order to improve the CSFB optimization scheme in a targeted manner.

The CSFB fallback scheme adopts the 3GPP R8 redirection fallback scheme. During the CSFB deployment process, the problem of parameter configuration will probabilistically cause the CSFB process to be abnormal. To this end, the embodiment of the present invention provides a method for detecting a CSFB fallback result in a scenario where a WCDMA cell access failure specified by the network side fails.

In various embodiments of the present invention, in the process of performing CSFB based on indication information indicating that the terminal performs voice service by using a preset CSFB optimization scheme, detecting that the terminal is in a designated second target wideband code division multiple access WCDMA cell Voice call state; the voice call of the terminal in the designated second target WCDMA cell is a voice call in the designated first target WCDMA cell signal weakening so that the circuit switched CS domain in the first target WCDMA cell After the establishment of the failure, the triggering is performed; determining whether the CSFB is successfully dropped based on the detected voice call state; wherein the indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is The LTE base station sends the connection request message to the LTE base station, and the CSFB process is triggered when the terminal receives the paging message sent by the LTE base station.

According to the solution provided by the embodiment of the present invention, when the target WCDMA cell signal specified by the network side becomes weak and the terminal access fails, the terminal uses the WCDMA cell resource to perform the voice call state in the CSFB process, thereby finally The CSFB fallback result is determined, so that in the subsequent CSFB process, the optimization scheme can be further improved to improve the probability of the CSFB process success, so as to improve the user's calling experience.

FIG. 1 is a schematic flowchart of a CSFB fallback result detecting method according to an embodiment of the present invention. As shown in FIG. 1, the CSFB fallback result detecting method includes the following steps:

Step 101: In the process of performing CSFB according to the indication information indicating that the terminal performs the voice service by using the preset CSFB optimization scheme, detecting a voice call state of the terminal in the specified second target wideband code division multiple access WCDMA cell;

Here, the voice call of the terminal in the designated second target WCDMA cell is weakened after the designated first target WCDMA cell signal is caused, after the voice call establishment failure of the circuit switched CS domain of the first target WCDMA cell fails. And triggering; specifically, the frequency information of the designated first target WCDMA cell is carried in a redirection command sent by the Long Term Evolution (LTE) base station; and the frequency information of the designated second target WCDMA cell is also carried in the long term. The redirecting command sent by the LTE base station is evolved; so that the terminal accesses the target cell corresponding to the frequency point information based on the frequency point information.

The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB The process is triggered when the terminal receives the paging message sent by the LTE base station.

In a practical application, a network environment applied to the embodiment of the present invention may be constructed by means of a laboratory simulation. That is, the scenario in which the terminal is located in the embodiment of the present invention is obtained through simulation, and the processing is performed on the one hand. The staff does not need to go to the site for testing, which can reduce the cost of personnel; on the other hand, the scene on the scene may contain other factors, thus Affecting the detection result, the simulation network of the embodiment of the present invention can stably reproduce the CSFB abnormal scene that occurs in the field network, and can eliminate the influence of other factors on the detection result in the scenario described in the embodiment of the present invention.

Based on this, in some embodiments, the voice call state of the terminal in the second target WCDMA cell in the simulated network environment is detected.

Step 102: Determine whether the CSFB is successfully dropped based on the detected voice call state.

In a specific embodiment, when it is detected that the terminal does not request resources of the second target WCDMA cell and establish a voice call, it is determined that the CSFB fallback fails. For example, if it is detected that the terminal does not turn to the second target WCDMA cell to request CS resources and establish a voice call within a specified time, it is determined that the CSFB fallback fails.

In a specific embodiment, when it is determined that the voice call of the terminal in the second target WCDMA cell is interrupted (ie, not continued) based on the voice call state, it is determined that the CSFB fallback fails. For example, when the terminal turns to the second target WCDMA cell to request CS resources and establishes a voice call within a specified time, but the voice call fails to continue, at this time, it is determined that the CSFB fallback fails.

In another specific embodiment, after the end of the voice call in the second target WCDMA cell, detecting whether the terminal returns to the LTE network within a preset duration; when the terminal does not return within the preset duration In the LTE network, it is determined that the CSFB fallback fails. Here, in an actual application, the preset duration may be set as needed.

In a specific scenario, when it is detected that the terminal can switch to the second target WCDMA cell within a specified time, the voice call process can continue, and after the voice call in the second target WCDMA cell ends, The LTE network is returned within the preset duration. At this time, it is determined that the CSFB falls back successfully.

In another specific embodiment, after the end of the voice call, detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell, determining that the CSFB falls back failure.

Here, in actual application, it is possible to detect whether the terminal's voice call in the WCDMA network is interrupted by related signaling. Similarly, the related signaling is used to detect whether the terminal returns to the LTE network within a preset time period. Relevant signaling determines whether the terminal is at the end of a voice call, performs a RAU procedure in the WCDMA network, and determines whether the terminal can turn to the second WCDMA cell within a specified time by corresponding signaling.

The method provided by the embodiment of the present invention detects the voice of the terminal in the specified second target wideband code division multiple access WCDMA cell in the process of performing CSFB based on the indication information indicating that the terminal uses the preset CSFB optimization scheme to perform the voice service. a call state; the voice call of the terminal in the designated second target WCDMA cell is weakened in the designated first target WCDMA cell signal, so that the voice call establishment in the circuit switched CS domain of the first target WCDMA cell fails. And triggering; determining, according to the detected voice call state, whether the CSFB is successfully dropped; wherein the indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is the terminal After the LTE base station sends the attach request message to the LTE base station, the LTE base station sends the same. The CSFB process is triggered when the terminal receives the paging message sent by the LTE base station, and the solution provided by the embodiment of the present invention can be used. The target WCDMA cell signal specified by the network side becomes weak, and the terminal terminal in the CSFB process is detected in the scenario where the terminal access fails. State WCDMA cell resource Pro for voice calls, and ultimately determine the fall results CSFB, so that, in the course of the subsequent conduct CSFB, it is possible to further improve the optimization scheme to improve the probability of success CSFB process in order to enhance the user's call experience.

In addition, detecting the voice call state of the terminal in the second target WCDMA cell in the simulated network environment, the simulation method does not require the staff to go to the site, and other factors affecting the detection can be removed, thereby greatly reducing the personnel. At the same time, the influence of other factors on the detection result in the scenario described in the embodiment of the present invention can be eliminated.

The present invention will be further described in detail below with reference to an application embodiment.

In this application embodiment, a network environment is constructed by using a simulation platform, including a frequency division duplex (FDD)-LTE cell, a WCDMA cell, and a WCDMA cell. Among them, WCDMA 0 and WCDMA 1 are configured as neighbor cell information in the LTE SIB. The LTE neighbor cell information is configured in the WCDMA SIB18.

The abnormal scenario of the application embodiment is that the UE access fails due to the weakened target WCDMA cell signal specified by the network side. In this case, the UE can still complete the CSFB by using the neighboring WCDMA resource, thereby verifying the terminal side call optimization scheme. Validity and rationality.

The detection method of the fallback result of the CSFB of this application embodiment, as shown in FIG. 2, includes the following steps:

Step 201: The UE registers with the LTE cell to perform an attach procedure.

Specifically, the UE is an MT, and after the UE is powered on, the Evolved Packet System (EPS)/International Mobile Subscriber Identification Number (IMSI) attach procedure is first executed.

The method includes: triggering the UE to send an attach request message (Attach Request) to the LTE base station, and receiving an attach accept message sent by the LTE base station, where the attach accept message is carried to indicate the terminal The preset CSFB optimization scheme is used to indicate the voice service. FIG. 3 is a first schematic diagram of an emulation code according to an embodiment of the present invention, wherein: IMS voice over PS(V)=Not supported(0), representing the indication information.

Step 202: The network side triggers the MT CSFB process, and the network side sends a paging message (Paging) to the UE to start the CSFB process.

Here, in actual application, the MO needs to initiate a call for the MT first, and then the MT receives the paging message sent by the network side.

Specifically, after receiving the initial address request (IAM) incoming message, the mobile services switching center (MSC) in the network sends the SGsAP-PAGING-REQUEST message according to the existing SGs association and Mobility Management Entity (MME) information. To the MME, Here, the SGsAP-PAGING-REQUEST message carries the following information: IMSI, Temporary Mobile Subscriber Identity (TMSI), 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 an air interface Paging process. The UE establishes a connection and sends an Extended Service Request message to the MME. The MME sends an SGsAP-SERVICE-REQUEST message to the MSC. The MSC receives the message and does not resend the paging request message to the MME. To avoid the call waiting time being too long during the call connection process, the MSC receives the SGs Service Request message containing the idle state indication, first notifying that the calling call is in the process of being connected. The MME sends an Initial UE Context Setup message to the base station. Here, the Initial UE Context Setup message carries a CS Fallback Indicator, and the CS Fallback Indicator is used to indicate that the base station UE needs to fall back to the UMTS Terrestrial Radio Access Network due to the CSFB service requirement (UTRAN, UMTS Terrestrial Radio Access Network). ) / GSM / EDGE Radio Access Network (GERAN, GSM EDGE Radio Access Network).

In the attaching process, the UE receives the LTE_RRCConnectionRelease signaling sent by the LTE base station, that is, the redirect command. The redirection command carries the frequency point information of the designated WCDMA 0 cell, that is, the frequency point information of the target WCDMA 0 cell.

As shown in FIG. 4, the base station sends an R8 redirection command (rrcConnectionRelease_R8(0)) to the UE, where the command carries the frequency information of the target WCDMA 0 cell, so that the UE can conveniently carry the frequency information carried in the R8 redirection command. Access to the target WCDMA 0 cell.

Step 203: After the UE finds the WCDMA 0 cell according to the specified frequency point information (that is, the frequency point information of the target WCDMA 0 cell), the RRC Request is initiated. At this time, the simulation platform simulates: the WCDMA 0 cell signal becomes weak, the RRC connection and Subsequent processes cannot be completed;

In this case, the UE can quickly turn to the neighboring WCDMA 1 cell to request CS resources and establish a voice call according to the neighboring area information of the previous SIB configuration, and after the call ends, the FastReturn can successfully return to the LTE network. That is, whether it can be returned within the preset time Go back to the LTE network.

specifically:

Step 204: Check whether the UE can turn to the neighboring WCDMA 1 cell to request CS resources and establish a voice call. If yes, go to step 205; otherwise, the CSFB fallback fails, that is, the preset CSFB optimization scheme fails. .

Step 205: Detecting whether the voice call of the UE in the WCDMA 1 cell can be maintained, if yes, executing step 206; otherwise, indicating that the CSFB fallback fails, that is, the preset CSFB optimization scheme fails;

Step 206: Detect whether the UE returns to the LTE network within a preset time period after the call ends. If yes, the CSFB fallback is successful. Otherwise, the CSFB fallback fails.

Here, in an actual application, when the UE cannot return to the LTE network within a preset duration, the UE may attempt to perform the RAU procedure in the WCDMA 0 cell, indicating that the optimization scheme fails. That is, it is detected whether the RAU process is performed in the first target WCDMA cell after the end of the call, and if so, the CSFB fallback is failed, otherwise the CSFB fallback is successful.

Here, according to the preset CSFB optimization scheme, when the UE ends the normal call in the second target WCDMA cell, the UE should quickly return to the LTE network.

In order to implement the method of the embodiment of the present invention, the embodiment of the present invention further provides a CSFB fallback result detecting device. As shown in FIG. 5, the device includes:

The detecting unit 51 is configured to detect a voice call state of the terminal in the specified second target wideband code division multiple access WCDMA cell in the process of performing CSFB according to the indication information indicating that the terminal performs the voice service by using the preset CSFB optimization scheme. The voice call of the terminal in the designated second target WCDMA cell is weakened after the designated first target WCDMA cell signal is made so that the voice call establishment of the circuit switched CS domain of the first target WCDMA cell fails. Triggered

The determining unit 52 is configured to determine whether the CSFB is based on the detected voice call state Fall back successfully;

The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB process is The terminal triggers execution when receiving the paging message sent by the LTE base station.

In a specific embodiment, the determining unit 52 is further configured to determine that the CSFB fallback fails when detecting that the terminal does not request resources of the second target WCDMA cell and establish a voice call.

In another specific embodiment, the determining unit 52 is further configured to determine that the CSFB fallback fails when it is determined that the terminal is interrupted by a voice call of the second target WCDMA cell based on the voice call state.

In another embodiment, the detecting unit 51 is further configured to: after the end of the voice call in the second target WCDMA cell, detect whether the terminal returns to the LTE network within a preset time period;

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 duration.

In another specific embodiment, the detecting unit 51 is further configured to: after the end of the voice call, detect that the terminal performs a routing area update RAU procedure in the first target WCDMA cell;

Correspondingly, the determining unit 52 is further configured to: after detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell, determine that the CSFB fallback fails.

In another specific embodiment, the detecting unit 51 is further configured to detect a voice call state of the terminal in the second target WCDMA cell in the simulated network environment.

In a practical application, the detecting unit 51 and the determining unit 52 are both implemented by a processor, where The processor may be specifically a central processing unit (CPU), or a microprocessor (MPU), or a digital signal processor (DSP), or a programmable gate array (FPGA).

It should be noted that the CSFB fallback result detecting apparatus provided in the above embodiment is only illustrated by the division of each of the foregoing program modules when performing the CSFB fallback result detection. In actual applications, the above processing may be allocated as needed. Different program modules are completed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the CSFB fallback result detecting device provided by the foregoing embodiment is the same as the CSFB fallback result detecting method embodiment. The specific implementation process is described in detail in the method embodiment, and details are not described herein again.

The hardware implementation of each unit in the fallback result detecting device of the CSFB is provided. In order to implement the embodiment of the present invention, the embodiment of the present invention further provides a CSFB fallback result detecting device. As shown in FIG. 6, the device includes a processor 61 and a memory 62 configured to store a computer program capable of running on the processor,

Wherein the processor 61 is configured to execute the computer program:

In the process of performing CSFB based on the indication information indicating that the terminal performs the voice service by using the preset CSFB optimization scheme, detecting the voice call state of the terminal in the designated second target wideband code division multiple access WCDMA cell; the terminal is specified The second target WCDMA cell voice call is triggered after the designated first target WCDMA cell signal becomes weak and the voice call establishment failure of the circuit switched CS domain of the first target WCDMA cell is triggered;

Determining whether the CSFB is successfully dropped based on the detected voice call state; wherein

The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB process is The terminal triggers execution when receiving the paging message sent by the LTE base station.

In a specific embodiment, the detecting the voice call state, determining the CSFB Whether it falls back successfully, including:

When it is detected that the terminal does not request the resource of the second target WCDMA cell and establish a voice call, it is determined that the CSFB fallback fails.

In another specific embodiment, the determining, according to the detected voice call state, whether the CSFB is successfully dropped, includes:

When it is determined that the voice call of the terminal in the second target WCDMA cell is interrupted based on the voice call state, determining that the CSFB fallback fails.

In another embodiment, the processor 61, when configured to run the computer program, further performs:

After the end of the voice call in the second target WCDMA cell, detecting whether the terminal returns to the LTE network within a preset time period;

When the terminal does not return to the LTE network within the preset duration, it is determined that the CSFB fallback fails.

In another embodiment, the processor 61, when configured to run the computer program, further performs:

After the end of the voice call, detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell, determining that the CSFB fallback fails.

In another specific embodiment, the detecting, by the terminal, a voice call state in a specified second target wideband code division multiple access WCDMA cell, including:

Detecting a voice call state of the terminal in the second target WCDMA cell in the simulated network environment.

Of course, in actual application, as shown in FIG. 6, the various components of the device are coupled together by a bus system 63. It will be appreciated that the bus system 63 is used to implement connection communication between these components. The bus system 63 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 63 in FIG.

Here, in practical applications, the memory may be implemented by any type of volatile or non-volatile storage device, or a combination thereof. The non-volatile memory may be a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), or an Erasable Programmable Read (EPROM). Only Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory , CD-ROM, or Compact Disc Read-Only Memory (CD-ROM); the magnetic surface memory can be a disk storage or a tape storage. The volatile memory can be a random access memory (RAM) that acts as an external cache. By way of example 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 (SSRAM). DRAM (Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhancement Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory Bus Random Access Memory (DRRAM) ). The memories described in the embodiments of the present invention are intended to include, but are not limited to, these and any other suitable types of memory.

The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The above processor may be a general purpose processor or a digital signal processor. Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The processor may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present invention. A general purpose processor can be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium that is located in the memory, the processor reads the information in the memory, and in conjunction with its hardware, performs the steps of the aforementioned method applied to the media information processing system.

Embodiments of the present invention also provide a computer readable storage medium, such as a memory including a computer program executable by a processor of a CSFB fall result detection device to perform the steps of the foregoing method. The computer readable storage medium may be a memory such as FRAM, ROM, programmable read only memory PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; or may include one or any combination of the above memories. Various equipment.

Further, the computer readable storage medium stores a computer program, wherein when the computer program is executed by the processor, the following steps are implemented:

In the process of performing CSFB based on the indication information indicating that the terminal performs the voice service by using the preset CSFB optimization scheme, detecting the voice call state of the terminal in the designated second target wideband code division multiple access WCDMA cell; the terminal is specified The second target WCDMA cell voice call is triggered after the designated first target WCDMA cell signal becomes weak and the voice call establishment failure of the circuit switched CS domain of the first target WCDMA cell is triggered;

Determining whether the CSFB is successfully dropped based on the detected voice call state; wherein

The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB process is The terminal triggers execution when receiving the paging message sent by the LTE base station.

In a specific embodiment, the determining, according to the detected voice call state, whether the CSFB is successfully dropped, includes:

When it is detected that the terminal does not request the resource of the second target WCDMA cell and establish a voice call, it is determined that the CSFB fallback fails.

In another specific embodiment, the determining, according to the detected voice call state, whether the CSFB is successfully dropped, includes:

When it is determined that the voice call of the terminal in the second target WCDMA cell is interrupted based on the voice call state, determining that the CSFB fallback fails.

In another embodiment, the computer program is further executed by the processor to:

After the end of the voice call in the second target WCDMA cell, detecting whether the terminal returns to the LTE network within a preset time period;

When the terminal does not return to the LTE network within the preset duration, it is determined that the CSFB fallback fails.

In another embodiment, the computer program is further executed by the processor to:

After the end of the voice call, detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell, determining that the CSFB fallback fails.

In another specific embodiment, the detecting, by the terminal, a voice call state in a specified second target wideband code division multiple access WCDMA cell, including:

Detecting a voice call state of the terminal in the second target WCDMA cell in the simulated network environment.

The technical solutions described in the embodiments of the present invention can be arbitrarily combined without conflict.

In the several embodiments provided by the present invention, it should be understood that the disclosed method and smart device may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division, and may be implemented in actual implementation. There are additional ways of dividing, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention.

Industrial applicability

The embodiment of the present invention detects a voice call state of the terminal in a specified second target wideband code division multiple access WCDMA cell in the process of performing CSFB according to the instruction information indicating that the terminal uses the preset CSFB optimization scheme to perform voice service; The voice call of the terminal in the designated second target WCDMA cell is triggered after the designated first target WCDMA cell signal becomes weak and the voice call establishment of the circuit switched CS domain of the first target WCDMA cell fails. And determining, according to the detected voice call state, whether the CSFB is successfully dropped; wherein the indication information is carried in an attach accept message sent by the LTE base station to the terminal; and the attach accept message is sent by the terminal to the LTE base station. After the attach request message is sent by the LTE base station, the CSFB process is that the terminal receives the paging cancellation sent by the LTE base station. Triggered execution when the information is on. According to the solution provided by the embodiment of the present invention, when the target WCDMA cell signal specified by the network side becomes weak and the terminal access fails, the terminal uses the WCDMA cell resource to perform the voice call state in the CSFB process, thereby finally The CSFB fallback result is determined, so that in the subsequent CSFB process, the optimization scheme can be further improved to improve the probability of the CSFB process success, so as to improve the user's calling experience.

Claims (14)

A method for detecting a fallback result of a circuit domain fallback CSFB, the method comprising: In the process of performing CSFB based on the indication information indicating that the terminal performs the voice service by using the preset CSFB optimization scheme, detecting the voice call state of the terminal in the designated second target wideband code division multiple access WCDMA cell; the terminal is specified The second target WCDMA cell voice call is triggered after the designated first target WCDMA cell signal becomes weak and the voice call establishment failure of the circuit switched CS domain of the first target WCDMA cell is triggered; Determining whether the CSFB is successfully dropped based on the detected voice call state; wherein The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB process is The terminal triggers execution when receiving the paging message sent by the LTE base station. The method according to claim 1, wherein the determining whether the CSFB is successfully dropped based on the detected voice call state comprises: When it is detected that the terminal does not request the resource of the second target WCDMA cell and establish a voice call, it is determined that the CSFB fallback fails. The method according to claim 1, wherein the determining whether the CSFB is successfully dropped based on the detected voice call state comprises: When it is determined that the voice call of the terminal in the second target WCDMA cell is interrupted based on the voice call state, determining that the CSFB fallback fails. The method of claim 1 or 3, wherein the method further comprises: After the end of the voice call in the second target WCDMA cell, detecting whether the terminal returns to the LTE network within a preset time period; When the terminal does not return to the LTE network within the preset duration, it is determined that the CSFB fallback fails. The method of claim 1 wherein the method further comprises: After the end of the voice call, detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell, determining that the CSFB fallback fails. The method of claim 1, wherein the detecting the voice call state of the terminal in the designated second target wideband code division multiple access WCDMA cell comprises: Detecting a voice call state of the terminal in the second target WCDMA cell in the simulated network environment. A fallback result detecting device for circuit area falling back CSFB, comprising: The detecting unit is configured to detect a voice call state of the terminal in the designated second target wideband code division multiple access WCDMA cell in the process of performing CSFB according to the indication information indicating that the terminal uses the preset CSFB optimization scheme to perform voice service; The voice call of the terminal in the designated second target WCDMA cell is triggered after the designated first target WCDMA cell signal becomes weak, so that the voice call establishment failure of the circuit switched CS domain of the first target WCDMA cell is triggered. of; Determining, configured to determine whether the CSFB is successfully dropped based on the detected voice call state; The indication information is carried in an attach accept message sent by the LTE base station to the terminal; the attach accept message is sent by the LTE base station after the terminal sends an attach request message to the LTE base station; the CSFB process is The terminal triggers execution when receiving the paging message sent by the LTE base station. The detecting apparatus according to claim 7, wherein said determining unit is further configured to determine that said CSFB fallback fails when detecting that said terminal does not request a resource to said second target WCDMA cell and establishes a voice call. The detecting apparatus according to claim 7, wherein said determining unit is further configured to determine a voice pass of said terminal in said second target WCDMA cell based on said voice call state When the words are interrupted, it is determined that the CSFB falls back. The detecting apparatus according to claim 7 or 9, wherein the detecting unit is further configured to detect whether the terminal returns to the LTE network within a preset time period after the end of the voice call in the second target WCDMA cell; 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. The detecting apparatus according to claim 7, wherein the detecting unit is further configured to: after the end of the voice call, detect that the terminal performs a routing area update RAU procedure in the first target WCDMA cell; Correspondingly, the determining unit is further configured to determine that the CSFB fallback fails after detecting that the terminal performs a routing area update RAU procedure in the first target WCDMA cell. The detecting apparatus according to claim 7, wherein said detecting unit is further configured to detect a voice call state of said terminal located in a simulated network environment in said second target WCDMA cell. A circuit domain fallback CSFB fallback result detecting apparatus includes: a processor and a memory for storing a computer program executable on a processor, wherein the processor is configured to execute the computer program when executing the claim 1 The steps of the method described in 6. A computer readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the steps of the method of claims 1 to 6.

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