WO2019061432A1 - 一种csfb的回落结果检测方法及装置、计算机存储介质 - Google Patents

一种csfb的回落结果检测方法及装置、计算机存储介质 Download PDF

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Publication number
WO2019061432A1
WO2019061432A1 PCT/CN2017/104866 CN2017104866W WO2019061432A1 WO 2019061432 A1 WO2019061432 A1 WO 2019061432A1 CN 2017104866 W CN2017104866 W CN 2017104866W WO 2019061432 A1 WO2019061432 A1 WO 2019061432A1
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Prior art keywords
gsm cell
csfb
terminal
detecting
cell
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PCT/CN2017/104866
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English (en)
French (fr)
Inventor
曾元清
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深圳市云中飞网络科技有限公司
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Application filed by 深圳市云中飞网络科技有限公司 filed Critical 深圳市云中飞网络科技有限公司
Priority to PCT/CN2017/104866 priority Critical patent/WO2019061432A1/zh
Priority to CN201780001956.5A priority patent/CN107820716B/zh
Publication of WO2019061432A1 publication Critical patent/WO2019061432A1/zh

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    • 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

Definitions

  • 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 computer storage medium.
  • CSFB Circuit Switched Fallback
  • LTE Long-term evolution
  • 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.
  • a CS Circuit Switched
  • PS Packet Switch
  • the originator of the telephone is called the caller (MO, Mobile Origination)
  • the receiver of the call is called the called (MT, Mobile Termination)
  • the MO and the MT each have their own CSFB signaling flow.
  • 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.
  • an embodiment of the present invention provides a CSFB fallback result detecting method and apparatus, and a computer storage medium.
  • An embodiment of the present invention further provides a method for detecting a fallback result of a CSFB, where the method includes:
  • the terminal In the process of initiating a CSFB by indicating that the terminal uses the preset CSFB optimization scheme to perform voice service indication, detecting whether the terminal accesses the first GSM cell within a preset time period; the terminal accessing the first GSM cell
  • the second GSM cell frequency point information is carried in a redirection command sent by the LTE base station, where the terminal initiates the CSFB process to access the second GSM cell and then disconnects the connection during the voice call;
  • 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 triggered when the terminal receives the paging message sent by the LTE base station.
  • the determining, by using the detection result, whether the CSFB is successfully falling back comprises:
  • the determining, by using the detection result, whether the CSFB is successfully falling back comprises:
  • the CSFB fallback is determined to be failed.
  • the determining, by using the detection result, whether the CSFB is successfully falling back comprises:
  • the frequency point information of the neighboring cell of the terminal does not include the frequency point information of the first GSM cell
  • Detecting whether the terminal accesses the first GSM cell in the preset time period including: determining, according to the frequency scan initiated by the terminal, frequency point information of the first GSM cell, where the preset time period is based on The frequency point information of the first GSM cell is connected to the first GSM cell, and detecting whether the terminal accesses the first GSM cell within a preset time period.
  • the reason parameter corresponding to the terminal initiating a CSFB process to access the second GSM is interrupted during the voice call after the cell.
  • the method further includes: before the detecting whether the terminal accesses the first GSM cell within a preset time period, the method further includes:
  • TAU tracking area update
  • the method further includes:
  • An embodiment of the present invention further provides a CSFB fallback result detecting apparatus, where the apparatus includes:
  • the detecting unit is configured to detect whether the terminal accesses the first GSM cell within a preset time period according to the indication information indicating that the terminal uses the preset CSFB optimization scheme to perform voice service initiation, and the terminal accessing the terminal Said first GSM cell is that the terminal initiates CSFB After the process is connected to the second GSM cell, the connection is interrupted during the voice call; the second GSM cell frequency information is carried in the redirect command sent by the LTE base station;
  • a determining unit configured to determine whether the CSFB is successfully dropped by using the detection result obtained by the detecting unit
  • 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 triggered when the terminal receives the paging message sent by the LTE base station.
  • the detecting unit is further configured to: when detecting that the terminal accesses the first GSM cell within a preset time period, requesting the network resource to establish a voice call according to the first GSM cell;
  • the determining unit is configured to determine that the CSFB falls back successfully when the detecting unit obtains a network resource corresponding to the first GSM cell and establishes a voice call.
  • the detecting unit is further configured to: when detecting that the terminal accesses the first GSM cell within a preset time period, requesting the network resource to establish a voice call according to the first GSM cell;
  • the determining unit is configured to determine that the CSFB fallback fails when the detecting unit does not obtain a network resource corresponding to the first GSM cell or does not establish a voice call based on the network resource of the first GSM cell.
  • the determining unit is configured to determine that the CSFB fallback fails when detecting that the terminal does not access the first GSM cell within a preset time period.
  • the frequency point information of the neighboring cell of the terminal does not include the frequency point information of the first GSM cell
  • the detecting unit is configured to determine the first based on a frequency scan initiated by the terminal
  • the frequency point information of the GSM cell accesses the first GSM cell based on the frequency point information of the first GSM cell in the preset time period, and detects whether the terminal accesses the first GSM cell within a preset time period.
  • the detecting unit is configured to: when detecting that the terminal accesses the first GSM cell, carrying a reason parameter requesting access to the first GSM cell, where the reason parameter is initiated by the terminal
  • the CSFB process accesses the second GSM cell and the connection is interrupted during the voice call.
  • the detecting unit is further configured to detect whether the terminal initiates a CSFB process to access a second GSM cell after the first GSM cell is accessed within a preset time period.
  • the terminal is detected to return to the LTE network and the TAU process is completed; and the terminal is detected to initiate the CSFB process again.
  • the determining unit is further configured to: after determining that the CSFB fails to fall, the second GSM cell is accessed by the terminal to initiate the CSFB process, and the detecting unit detects that the second GSM cell is not accessed.
  • An embodiment of the present invention further provides a CSFB fallback result detecting apparatus, the apparatus comprising: a processor and a memory configured to store a computer program executable on the processor,
  • the processor is configured to perform the steps of the CSFB fallback result detecting method according to the embodiment of the present invention when the computer program is executed.
  • the embodiment of the present invention further provides a computer storage medium on which a computer program is stored, and when the computer program is executed by the processor, the steps of the CSFB fall result detection method according to the embodiment of the present invention are implemented.
  • the method and device for detecting the fallback result of the CSFB provided by the embodiment of the present invention, and the computer storage medium, in the process of initiating CSFB based on the indication information indicating that the terminal uses the preset CSFB optimization scheme to perform voice service, detecting whether the terminal is in a preset time Access to the first global shift within the segment
  • the GSM cell of the mobile communication system the terminal accessing the first GSM cell is triggered by the terminal interrupting the connection after the terminal initiates the CSFB process to access the second GSM cell, and the second GSM cell frequency information is triggered; And being carried in the redirection command sent by the LTE base station; determining, by using the detection result, 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 sent by the LTE base station after the terminal sends an attach request message to the LTE base station; and the CSFB process is triggered when the terminal receives the paging message sent by the
  • the neighboring cell configured on the network side can detect the connection interruption in the voice call process after the terminal initiates the CSFB process to access the second GSM cell due to network congestion.
  • the voice call state in the GSM network finally determines the CSFB fallback result.
  • the optimization scheme can be further improved to improve the probability of the CSFB process success, so as to improve the user's call experience. .
  • FIG. 1 is a schematic flowchart of a CSFB fallback result detecting method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a CSFB fallback result detecting method according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram 1 of an emulation code according to an embodiment of the present invention.
  • FIG. 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. 6 is a schematic diagram showing the hardware structure of a CSFB fallback result detecting apparatus according to an embodiment of the present invention.
  • 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 a suitable GSM cell/WCDMA cell. Access; 3) The UE reads the GSM cell/WCDMA cell system broadcast message and establishes a voice call.
  • the configuration of the original network deployed on the base station signaling side is not updated in real time, and the configuration that the network sends to the UE occurs.
  • the information is inconsistent with the actual deployment, which leads to various abnormalities in the inter-system (InterRAT) voice call of CSFB, such as failure to connect, repeated connection failure, and the like.
  • InterRAT inter-system
  • the CSFB fallback scheme adopts the 3GPP R8 redirection fallback scheme.
  • the problem of parameter configuration will probabilistically cause the CSFB process to be abnormal.
  • the embodiment of the present invention provides a method for detecting a CSFB fallback result in a scenario in which a specified GSM cell is configured on the network side and the connection is interrupted during a voice call after the terminal accesses the designated GSM cell due to unreliable service.
  • Embodiments of the present invention provide a CSFB fallback result detection method.
  • 1 is a schematic flowchart of a CSFB fallback result detecting method according to Embodiment 1 of the present invention; as shown in FIG. 1, the method includes:
  • Step 101 In the process of initiating a CSFB by indicating that the terminal uses the preset CSFB optimization scheme to perform voice service indication, detecting whether the terminal accesses the first GSM cell within a preset time period.
  • the terminal accessing the first GSM cell is triggered when the terminal initiates a CSFB process to access the second GSM cell, and the connection is interrupted during the voice call;
  • the second GSM cell frequency information carries
  • the neighboring cell configured by the terminal includes the second GSM cell, that is, the neighbor cell configuration information corresponding to the terminal includes the frequency information of the second GSM.
  • 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.
  • the frequency point information of the neighboring cell of the terminal does not include the frequency point information of the first GSM cell, and whether the terminal accesses the first GSM cell within a preset time period, including: Determining, by the terminal, the frequency scan, the frequency information of the first GSM cell, accessing the first GSM cell based on the frequency information of the first GSM cell in the preset time period, and detecting that the terminal is in advance It is assumed whether the first GSM cell is accessed within the time period.
  • the reason parameter corresponding to the terminal initiating a CSFB process to access the second GSM is interrupted during the voice call after the cell.
  • the method before the detecting whether the terminal accesses the first GSM cell within a preset time period, the method further includes: detecting that the voice call is abnormal after the terminal initiates the CSFB process to access the second GSM cell. At the same time, it is detected that the terminal returns to the LTE network and completes the TAU process; it is detected that the terminal initiates the CSFB process again.
  • a method of laboratory simulation can be used to construct an application to the present invention.
  • the network environment of the embodiment that is, the scenario in which the terminal is located in the embodiment of the present invention is obtained by simulation, so that the worker does not need to go to the site for detection, thereby reducing personnel costs;
  • the scene of the scene may further include other factors, thereby affecting the detection result. Therefore, the simulation network of the embodiment of the present invention can stably reproduce the CSFB abnormal scene that occurs in the field network, and the scenario described in the embodiment of the present invention can be eliminated. The influence of other factors on the test results.
  • the voice call state of the terminal under the GSM network in the simulated network environment is detected.
  • Step 102 Determine, by using the detection result, whether the CSFB is successfully dropped.
  • the determining, by using the detection result, whether the CSFB is successfully dropped includes: when detecting that the terminal accesses the first GSM cell within a preset time period, The first GSM cell requests the network resource to establish a voice call; when the network resource corresponding to the first GSM cell is obtained and a voice call is established, the CSFB is determined to be successfully dropped.
  • the terminal initiates the CSFB process to access the second GSM cell, and the connection is interrupted during the voice call (ie, the call is dropped after the terminal rings), thereby triggering the frequency scan to determine the The frequency point information of the first GSM cell initiates access to the first GSM cell based on the frequency point information of the first GSM cell; when detecting the access to the first GSM cell within the preset time period, performing a subsequent process of the CSFB, When it is detected that the network resource corresponding to the first GSM cell is obtained and a voice call is established, the CSFB fallback is determined to be successful.
  • the determining, by using the detection result, whether the CSFB is successfully dropped includes: when detecting that the terminal accesses the first GSM cell within a preset time period, based on the first GSM cell Requesting a network resource to establish a voice call; determining that the CSFB fallback fails when a network call corresponding to the first GSM cell is not obtained or a voice call is not established based on the network resource of the first GSM cell.
  • the terminal If the service of the second GSM cell is unreliable, it is detected that the terminal initiates the initiation of the CSFB process to access the second GSM cell, and the connection is interrupted during the voice call (ie, the call is dropped after the terminal rings), thereby triggering the frequency scan determination.
  • the frequency point information of the first GSM cell is used to initiate access to the first GSM cell based on the frequency point information of the first GSM cell; and when the first GSM cell is detected within the preset time period, the subsequent process of executing the CSFB is performed. And detecting that the network resource corresponding to the first GSM cell is not obtained, or when the voice call is not established, determining that the CSFB fallback fails.
  • the CSFB may also be determined to fail to fall back.
  • the determining, by using the detection result, whether the CSFB is successfully dropped includes: determining that the CSFB fails to fall when detecting that the terminal does not access the first GSM cell within a preset time period .
  • the terminal If the service of the second GSM cell is unreliable, it is detected that the terminal initiates the initiation of the CSFB process to access the second GSM cell, and the connection is interrupted during the voice call (ie, the call is dropped after the terminal rings), thereby triggering the frequency scan determination.
  • the frequency point information of the first GSM cell is used to initiate access to the first GSM cell based on the frequency point information of the first GSM cell; when it is detected that the first GSM cell is not accessed within the preset time period, the CSFB failed to fall back.
  • the connection is interrupted during the voice call, that is, when the terminal fails to initiate the CSFB process to the second GSM cell, or based on the first GSM cell.
  • the frequency point information initiates the access to the first GSM cell
  • a timer is started, and the timing of the timer is detected to whether the first GSM cell is accessed before.
  • the timing duration of the timer can be set as needed.
  • whether the terminal accesses the first GSM cell in the preset time period may be detected by using a related signaling configuration; correspondingly, whether the terminal is based on the first GSM may be detected through a related signaling configuration.
  • the network resources of the cell establish a voice call.
  • the method further includes: detecting that the second GSM cell is not accessed, or detecting that the second GSM cell is not accessed, or When it is detected that the connection is interrupted during the voice call after accessing the second GSM cell, it is determined that the CSFB fallback fails.
  • the CSFB fallback After determining that the CSFB fallback is determined based on the first GSM cell, continue to try to initiate access in the second GSM cell, detect that the second GSM cell is not accessed, or detect access to the second GSM cell. When the connection is interrupted during the voice call, it is determined that the CSFB fallback fails.
  • the neighboring cell configured on the network side can detect the connection interruption in the voice call process after the terminal initiates the CSFB process to access the second GSM cell due to network congestion.
  • the voice call state in the GSM network finally determines the CSFB fallback result.
  • the optimization scheme can be further improved to improve the probability of the CSFB process success, so as to improve the user's call experience. .
  • a network environment is constructed by using a simulation platform, including a time division duplex (TDD)-LTE cell, a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) cell, and a GSM cell.
  • TDD time division duplex
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • GSM Global System for Mobile communications
  • the abnormal scenario of the application embodiment is that the service of the GSM 1 cell configured by the network side is unreliable, and the terminal initiates the CSFB process to access the GSM 1 cell, and the connection is interrupted during the voice call (ie, the call is dropped after the terminal rings).
  • the terminal can perform the CSFB process by using the GSM 0 cell that is not configured as the neighbor cell information, thereby verifying the validity and rationality of the UE side call optimization scheme.
  • the detection method of the fallback result of the CSFB of this application embodiment, as shown in FIG. 2, includes the following steps:
  • Step 200 The UE registers on the LTE cell to perform an attach procedure.
  • 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.
  • EPS Evolved Packet System
  • IMSI International Mobile Subscriber Identification Number
  • 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
  • Attach Request an attach request message
  • the preset CSFB optimization scheme is used to indicate the voice service.
  • Step 201 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.
  • Paging paging message
  • the MO needs to initiate a call for the MT first, and then the MT receives the paging message sent by the network side.
  • 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.
  • MME Mobility Management Entity
  • the SGsAP-PAGING-REQUEST message carries the following information: IMSI, Temporary Mobile Subscriber Identity (TMSI), Service Indicator, Calling Number, and Location Area Information.
  • the MME 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. In order to avoid the call connection process, the caller waits for too long. Long, 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.
  • the Initial UE Context Setup message carries a CS Fallback Indicator
  • 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).
  • UTRAN UMTS Terrestrial Radio Access Network
  • GERAN GSM EDGE Radio Access Network
  • the UE receives the LTE_RRCConnectionRelease signaling sent by the LTE base station, that is, the redirect command.
  • the redirection command carries the frequency information of the GSM 1 cell.
  • the base station sends an R8 redirection command (rrcConnectionRelease_R8(0)) to the UE, where the command carries the frequency information of the GSM 1 cell. Since the GSM 1 cell service is unreliable, the abnormal scenario causes the UE to execute CSFB.
  • the connection is interrupted during the voice call (that is, the call is dropped after the terminal rings), that is, after the UE accesses the GSM 1 cell, the GSM call process is initiated, and after the alerting, the analog call control is disconnected ( CC Disconnect, Call Control Disconnect message, which triggers a call drop during a call.
  • Step 202 The UE returns to the LTE network within a preset time period and completes the TAU process, that is, the UE quickly returns to the LTE network and completes the TAU process.
  • Step 203 The UE rapidly performs frequency scanning to obtain frequency information of the GSM 0 cell, and initiates a CSFB process based on the frequency information of the GSM 0 cell in a preset time period, accesses the GSM 0 cell, and requests network resource establishment. Voice calls. If the GSM 0 cell is not connected within the preset time period, the CSFB fallback fails. The requesting access to the GSM 0 cell carries an access reason parameter, and the reason parameter corresponds to the connection interruption in the voice call process after the terminal initiates the CSFB process to access the second GSM cell.
  • Step 204 It is detected whether the UE obtains the network resource of the GSM 0 cell and establishes a voice call. If yes, step 205 is performed. Otherwise, step 206 is performed to indicate that the CSFB fallback fails, that is, the preset CSFB optimization scheme fails.
  • Step 205 Detect whether the UE keeps the voice call after the voice call is established. If yes, step 207 is executed to indicate that the CSFB fallback is successful. Otherwise, step 206 is performed to indicate that the CSFB fallback fails, that is, the preset CSFB optimization scheme fails.
  • Step 208 The UE re-attempts to access the GSM 1 cell, and determines whether the CSFB is successful based on the access result. If the UE is not connected to the GSM 1 cell, or detects the access to the GSM 1 cell, the voice call is connected. When it is interrupted, it is determined that the CSFB fallback fails. If the access to the GSM1 cell is detected and the voice call is successfully made and the connection is not interrupted, it is determined that the CSFB fallback is successful.
  • 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 31 is configured to detect whether the terminal accesses the first GSM cell within a preset time period according to the instruction to initiate the CSFB by using the preset CSFB optimization scheme to perform voice service indication; the terminal accesses The first GSM cell is triggered by the terminal initiating the CSFB process to access the second GSM cell, and the connection is interrupted during the voice call; the second GSM cell frequency information is carried in the redirect command sent by the LTE base station;
  • the determining unit 32 is configured to determine whether the CSFB is successfully dropped by using the detection result obtained by the detecting unit 31.
  • 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 triggered when the terminal receives the paging message sent by the LTE base station.
  • the frequency point information of the neighboring cell of the terminal does not include the frequency point information of the first GSM cell
  • the detecting unit 31 is configured to determine frequency point information of the first GSM cell based on a frequency scan initiated by the terminal, and access the frequency point information based on the first GSM cell in the preset time period.
  • a GSM cell detects whether the terminal accesses the first GSM cell within a preset time period.
  • the detecting unit 31 is configured to: when detecting that the terminal accesses the first GSM cell, carrying a reason parameter requesting to access the first GSM cell, where the reason parameter is initiated by the terminal
  • the CSFB process accesses the second GSM cell and the connection is interrupted during the voice call.
  • the detecting unit 31 is further configured to: before detecting whether the terminal accesses the first GSM cell within a preset time period, detecting that the terminal initiates a CSFB process and accesses the second GSM cell after the voice call
  • the terminal is detected to return to the LTE network and the TAU process is completed; and the terminal is detected to initiate the CSFB process again.
  • the detecting unit 31 is further configured to: when detecting that the terminal accesses the first GSM cell within a preset time period, requesting a network call by using the first GSM cell to establish a voice call;
  • the determining unit 32 is configured to determine that the CSFB falls back successfully when the detecting unit 31 obtains a network resource corresponding to the first GSM cell and establishes a voice call.
  • the detecting unit 31 is further configured to: when detecting that the terminal accesses the first GSM cell within a preset time period, requesting the network resource to establish a voice call according to the first GSM cell;
  • the determining unit 32 is configured to determine that the CSFB fails to fall when the detecting unit 31 does not obtain a network resource corresponding to the first GSM cell or does not establish a voice call based on the network resource of the first GSM cell. .
  • the determining unit 32 is configured to determine that the CSFB fallback fails when detecting that the terminal does not access the first GSM cell within a preset time period.
  • the detecting unit 31 is further configured to: before detecting whether the terminal accesses the first GSM cell within a preset time period, detecting that the terminal initiates a CSFB process and accesses the second GSM cell after the voice call
  • the terminal is detected to return to the LTE network and the TAU process is completed; and the terminal is detected to initiate the CSFB process again.
  • the determining unit 32 is further configured to: after determining that the CSFB fails to fall back, the second GSM cell is accessed according to the terminal re-initiating the CSFB process, and the detecting unit 31 detects that the second GSM cell is not connected.
  • the detecting unit 31 and the determining unit 32 in the fallback result detecting device of the CSFB can be implemented by a central processing unit (CPU) and a digital signal processor (DSP, Digital Signal) in practical applications.
  • DSP digital signal processor
  • Processor Processor
  • MCU Microcontroller Unit
  • FPGA Field-Programmable Gate Array
  • 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.
  • 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 embodiment of the invention further provides a CSFB fallback result detecting device.
  • 6 is a schematic diagram showing the hardware structure of the CSFB fallback result detecting apparatus according to an embodiment of the present invention.
  • the CSFB fallback result detecting apparatus 40 includes at least one processor 41 and is configured to be capable of being stored on the processor 41.
  • a memory 42 of a computer program Each component in the terminal passes through the bus system 43 coupled together.
  • the bus system 43 is used to implement connection communication between these components.
  • the bus system 43 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 the bus system 43 in FIG.
  • memory 42 can be either volatile memory or non-volatile memory, and can include both volatile and nonvolatile memory.
  • 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.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SSRAM Synchronous Static Random Access Memory
  • SSRAM Dynamic Random Access
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM enhancement Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Dynamic Random Access Memory
  • DRRAM Direct Memory Bus Random Access Memory
  • Processor 41 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 the processor 41 or an instruction in a form of software.
  • the processor 41 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or the like.
  • the processor 41 can implement or perform the various 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 reside in a storage medium located in memory 42, which reads the information in memory 42 and, in conjunction with its hardware, performs the steps of the foregoing method.
  • the CSFB fallback detection device may be configured by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), and Complex Programmable Logics.
  • a device CPLD, Complex Programmable Logic Device
  • FPGA field-programmable gate array
  • controller a controller
  • MCU microcontroller
  • microprocessor or other electronic component implementation for performing the aforementioned method.
  • the processor 41 executes the program, it is determined that the terminal is connected within a preset time period based on the instruction to initiate the CSFB by using the preset CSFB optimization scheme to perform voice service indication information. Entering the first GSM cell; the terminal accessing the first GSM cell is triggered when the terminal initiates the CSFB process to access the second GSM cell, and the connection is interrupted during the voice call; the second GSM cell frequency information Carrying in the redirection command sent by the LTE base station; determining whether the CSFB is successfully dropped by using the detection result; wherein the indication information is carried in an attach accept message sent by the LTE base station to the terminal; The message is that the LTE base station after the terminal sends an attach request message to the LTE base station The CSFB process is triggered when the terminal receives the paging message sent by the LTE base station.
  • the processor 41 is configured to: when detecting that the terminal accesses the first GSM cell within a preset time period, requesting to establish a voice based on the first GSM cell a call; when the network resource corresponding to the first GSM cell is obtained and a voice call is established, it is determined that the CSFB is successfully dropped.
  • the processor 41 is configured to: when detecting that the terminal accesses the first GSM cell within a preset time period, requesting to establish a voice based on the first GSM cell a call; determining that the CSFB fallback fails when a network call corresponding to the first GSM cell is not obtained or a voice call is not established based on the network resource of the first GSM cell.
  • the processor 41 executes the program, when it is detected that the terminal does not access the first GSM cell within a preset time period, it is determined that the CSFB fallback fails.
  • the processor 41 executes the program, determining, according to the frequency scan initiated by the terminal, determining frequency point information of the first GSM cell, where the preset period is based on the A frequency point information of a GSM cell is connected to the first GSM cell, and detecting whether the terminal accesses the first GSM cell within a preset time period; the frequency point information of the neighboring cell of the terminal does not include the first GSM cell Frequency information.
  • the processor 41 is configured to: when detecting that the terminal accesses the first GSM cell, carrying a reason parameter requesting access to the first GSM cell, where the reason parameter corresponds
  • the connection is interrupted during the voice call after the terminal initiates the CSFB process to access the second GSM cell.
  • the processor 41 is configured to: when detecting whether the terminal accesses the first GSM cell within a preset time period, detecting that the terminal initiates a CSFB process to access the second GSM.
  • the terminal is detected to return to The LTE network and the completion of the TAU process; detecting that the terminal initiates the CSFB process again.
  • the terminal when the processor 41 executes the program, after determining that the CSFB fails to fall back, the terminal initiates a CSFB process to access the second GSM cell, and detects that the second GSM cell is not accessed.
  • the GSM cell or detecting that the connection is interrupted during the voice call after accessing the second GSM cell, determines that the CSFB fallback fails.
  • the embodiment of the present invention further provides a computer storage medium, for example, comprising a memory 42 storing a computer program as shown in FIG. 6, which can be executed by the processor 41 to perform the steps described in the foregoing method.
  • the computer storage medium may be a memory such as FRAM, ROM, 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.
  • the computer storage medium provided by the embodiment of the present invention has a computer program stored thereon, and when the computer program is executed by the processor, executing: indicating that the terminal uses the preset CSFB optimization scheme to initiate voice service indication information.
  • the terminal accessing the first GSM cell is that the terminal initiates a CSFB process to access the second GSM cell and then performs a voice call.
  • the connection is interrupted and triggered; the second GSM cell frequency information is carried in the redirection command sent by the LTE base station; and the detection result is used to determine whether the CSFB is successfully dropped; wherein the indication information is carried in the LTE
  • the terminal when the computer program is executed by the processor, when the terminal detects that the terminal accesses the first GSM cell within a preset time period, requesting the network resource to establish a voice call based on the first GSM cell When obtaining network resources corresponding to the first GSM cell When the voice call is established, it is determined that the CSFB is successfully dropped.
  • the terminal when the computer program is executed by the processor, when the terminal detects that the terminal accesses the first GSM cell within a preset time period, requesting the network resource to establish a voice call based on the first GSM cell And determining that the CSFB fallback fails when a network call corresponding to the first GSM cell is not obtained or a voice call is not established based on the network resource of the first GSM cell.
  • the computer program when executed by the processor, it is executed to: when it is detected that the terminal does not access the first GSM cell within a preset time period, determine that the CSFB fallback fails.
  • the computer program when executed by the processor, performing: determining, according to the frequency scan initiated by the terminal, frequency point information of the first GSM cell, based on the first time in the preset time period.
  • the frequency point information of the GSM cell accesses the first GSM cell, and detects whether the terminal accesses the first GSM cell within a preset time period; the frequency point information of the neighboring cell of the terminal does not include the first GSM cell Frequency information.
  • the computer program when executed by the processor, it is executed to: when detecting that the terminal accesses the first GSM cell, carrying a reason parameter requesting access to the first GSM cell, where the cause parameter corresponds to The terminal initiates a CSFB process to access the second GSM cell and then disconnects during the voice call.
  • the computer program when executed by the processor, it is executed to: detect whether the terminal initiates a CSFB process to access the second GSM cell before accessing the first GSM cell within a preset time period.
  • the voice call When the voice call is abnormal, it is detected that the terminal returns to the LTE network and completes the TAU process; it is detected that the terminal initiates the CSFB process again.
  • the computer program when executed by the processor, it is executed to: after determining that the CSFB fails to fall back, the CSFB process is initiated to access the second GSM cell based on the terminal, and detecting that the second GSM is not accessed a cell, or detecting access to the second GSM cell
  • the connection is interrupted during the voice call, it is determined that the CSFB fallback fails.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • 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.
  • 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.

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Abstract

本发明实施例公开了一种CSFB的回落结果检测方法及装置、计算机存储介质，所述方法包括：基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在LTE基站发送的重定向命令中；利用检测结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。

Description

一种CSFB的回落结果检测方法及装置、计算机存储介质 技术领域
本发明涉及电路域回落(CSFB，Circuit Switched Fallback)技术领域，尤其涉及一种CSFB的回落结果检测方法及装置、计算机存储介质。
背景技术
由于长期演进(LTE，Long Term Evolution)和2G/3G双模终端的无线通信是单一无线模式(Signal-radio mode)，因此，具有LTE和2G/3G接入能力的双模或者多模终端，在使用LTE接入时，无法传输2G/3G电路域业务信号。为了使终端(UE，User Equipment)在LTE接入或驻留下能够进行话音等电路域(CS，Circuit Switched)业务，并且能够对UE在LTE接入下正在进行的分组域(PS，Packet Switch)业务进行正确地处理，产生了CSFB技术。
在CSFB过程中，电话的发起者称为主叫(MO，Mobile Origination)，电话的接收者称为被叫(MT，Mobile Termination)，MO和MT各自对应有自己的CSFB信令流程。对于CSFB过程中的MT而言，由于各种异常情况的出现会概率性地导致CSFB过程失败，从而导致电话无法接通，如何有效检测异常场景下的CSFB的回落结果尤为必要。
发明内容
为解决上述技术问题，本发明实施例提供了一种CSFB的回落结果检测方法及装置、计算机存储介质。
本发明实施例还提供了一种CSFB的回落结果检测方法，所述方法包括：
基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在LTE基站发送的重定向命令中；
利用检测结果，判断所述CSFB是否回落成功；
其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；
所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
在一实施例中，所述利用检测结果，判断所述CSFB是否回落成功，包括：
当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
当获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
在一实施例中，所述利用检测结果，判断所述CSFB是否回落成功，包括：
当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
当未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
在一实施例中，所述利用检测结果，判断所述CSFB是否回落成功，包括：
当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
在一实施例中，所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息；
检测所述终端在预设时间段内是否接入第一GSM小区，包括：基于所述终端发起的频率扫描确定所述第一GSM小区的频点信息，在所述预设时间段内基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区。
在一实施例中，检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
在一实施例中，所述检测所述终端是否在预设时间段内接入第一GSM小区之前，所述方法还包括：
检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成跟踪区更新(TAU)流程；
检测到所述终端再次发起CSFB流程。
在一实施例中，所述确定所述CSFB回落失败后，所述方法还包括：
基于所述终端再次发起CSFB流程接入所述第二GSM小区，检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
本发明实施例还提供了一种CSFB的回落结果检测装置，所述装置包括：
检测单元，配置为基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB 流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在LTE基站发送的重定向命令中；
确定单元，配置为利用所述检测单元获得的检测结果，判断所述CSFB是否回落成功；
其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；
所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
在一实施例中，所述检测单元，还配置为当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
所述确定单元，配置为当所述检测单元获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
在一实施例中，所述检测单元，还配置为当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
所述确定单元，配置为当所述检测单元未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
在一实施例中，所述确定单元，配置为当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
在一实施例中，所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息；
所述检测单元，配置为基于所述终端发起的频率扫描确定所述第一 GSM小区的频点信息，在所述预设时间段内基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区。
在一实施例中，所述检测单元，配置为检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
在一实施例中，所述检测单元，还配置为检测所述终端是否在预设时间段内接入第一GSM小区之前，检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成TAU流程；检测到所述终端再次发起CSFB流程。
在一实施例中，所述确定单元，还配置为确定所述CSFB回落失败后，基于所述终端再次发起CSFB流程接入所述第二GSM小区，所述检测单元检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
本发明实施例还提供了一种CSFB的回落结果检测装置，所述装置包括：处理器和配置为存储能够在处理器上运行的计算机程序的存储器，
其中，所述处理器配置为运行所述计算机程序时，执行本发明实施例所述的CSFB的回落结果检测方法的步骤。
本发明实施例还提供了一种计算机存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现本发明实施例所述的CSFB的回落结果检测方法的步骤。
本发明实施例提供的CSFB的回落结果检测方法及装置、计算机存储介质，在基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一全球移 动通信系统GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在长期演进LTE基站发送的重定向命令中；利用检测结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。采用本发明实施例的技术方案，能够在网络侧配置的邻小区(第二GSM小区)由于网络拥塞使得终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断的场景下检测出CSFB过程中在GSM网络下的语音通话状态，从而最终确定出CSFB的回落结果，这样，在后续进行CSFB的过程中，可以进一步完善优化方案来提高CSFB过程成功的概率，以提升用户的呼叫体验。
附图说明
图1为本发明实施例一的CSFB的回落结果检测方法的流程示意图；
图2为本发明实施例二的CSFB的回落结果检测方法的流程示意图；
图3为本发明实施例仿真代码的示意图一；
图4为本发明实施例的仿真代码的示意图二；
图5为本发明实施例CSFB的回落结果检测装置的结构组成示意图；
图6为本发明实施例CSFB的回落结果检测装置的硬件结构组成示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用， 并非用来限定本发明实施例。
正常情况下，具有CSFB功能的终端开机能够搜索LTE网络，完成LTE/2G网络联合注册，并能够进行语音主叫及被叫。
CSFB过程包括三个阶段：1)UE在LTE网络发起呼叫(对应于MO)，或者接收寻呼(对应于MT)；2)UE在LTE网络指引下回落并搜索合适的GSM小区/WCDMA小区进行接入；3)UE读取GSM小区/WCDMA小区系统广播消息并建立语音通话。
随着LTE基站规模不断地扩大，以及部分旧的GSM/TDSCDMA基站的退网和重耕，原有的网络部署在基站信令侧的配置并未实时更新，出现了网络下发给UE的配置信息和实际的部署情况不一致，从而导致CSFB这种跨系统(InterRAT)的语音通话出现各种异常情况，比如无法接通，重复连接失败等。
为解决此类因网络部署不兼容状况而带来的通话问题，各终端厂商采用了各种优化手段来提高通话体验，为验证CSFB优化方案的合理性，有必要对异常场景下的CSFB过程进行检测，以便针对性地完善CSFB优化方案。
CSFB回落方案采用3GPP R8重定向回落方案，在CSFB部署过程中，因参数配置的问题会概率性地导致CSFB过程出现异常。为此，本发明实施例提供了一种在网络侧配置指定GSM小区由于服务不可靠使得终端在接入该指定GSM小区后进行语音呼叫过程中连接中断的场景下，CSFB回落结果的检测方法。
实施例一
本发明实施例提供了一种CSFB的回落结果检测方法。图1为本发明实施例一的CSFB的回落结果检测方法的流程示意图；如图1所示，所述方法包括：
步骤101：基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一GSM小区。
本实施例中，所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在LTE基站发送的重定向命令中；可以理解为，所述终端配置的邻小区包括所述第二GSM小区，即所述终端对应的邻小区配置信息包括所述第二GSM的频点信息。
其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
本实施例中，所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息；检测所述终端在预设时间段内是否接入第一GSM小区，包括：基于所述终端发起的频率扫描确定所述第一GSM小区的频点信息，在所述预设时间段内基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区。
作为一种实施方式，检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
本实施例中，所述检测所述终端是否在预设时间段内接入第一GSM小区之前，所述方法还包括：检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成TAU流程；检测到所述终端再次发起CSFB流程。
实际应用时，可以通过实验室仿真的方式来构造一个应用于本发明实 施例的网络环境，也就是说，本发明实施例所述终端所在的场景是通过仿真方式得到的，这样处理，一方面，工作人员不需要去现场检测，从而能够降低人员成本；另一方面，现场的场景有可能还包含了其他因素，从而影响检测结果，所以采用本发明实施例的仿真网络，能够稳定复现现场网络出现的CSFB异常场景，能够消除在本发明实施例所描述的场景下其他因素对检测结果的影响。
基于此，在一些实施例中，检测位于仿真网络环境下的所述终端在GSM网络下的语音通话状态。
步骤102：利用检测结果，判断所述CSFB是否回落成功。
本实施例中，作为第一种实施方式，所述利用检测结果，判断所述CSFB是否回落成功，包括：当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；当获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
其中，由于第二GSM小区的服务不可靠，则检测到终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断(即终端响铃后掉话)，从而触发频率扫描确定所述第一GSM小区的频点信息，基于第一GSM小区的频点信息向第一GSM小区发起接入；当检测到在预设时间段内接入第一GSM小区时，执行CSFB的后续流程，检测到获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
作为第二种实施方式，所述利用检测结果，判断所述CSFB是否回落成功，包括：当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；当未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
其中，由于第二GSM小区的服务不可靠，则检测到终端发起发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断(即终端响铃后掉话)，从而触发频率扫描确定所述第一GSM小区的频点信息，基于第一GSM小区的频点信息向第一GSM小区发起接入；当检测到在预设时间段内接入第一GSM小区时，执行CSFB的后续流程，检测未获得对应于所述第一GSM小区的网络资源，或者未建立语音通话时，确定所述CSFB回落失败。作为另一种实施方式，检测到所述终端在所述第一GSM小区的语音通话中断(未持续)时，也可确定所述CSFB回落失败。
作为第三种实施方式，所述利用检测结果，判断所述CSFB是否回落成功，包括：当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
其中，由于第二GSM小区的服务不可靠，则检测到终端发起发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断(即终端响铃后掉话)，从而触发频率扫描确定所述第一GSM小区的频点信息，基于第一GSM小区的频点信息向第一GSM小区发起接入；当检测到在预设时间段内未接入第一GSM小区时，可确定所述CSFB回落失败。
实际应用中，在检测到终端发起发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断，也即检测到终端向第二GSM小区发起CSFB流程失败时，或者基于第一GSM小区的频点信息向第一GSM小区发起接入时，启动一定时器，检测所述定时器的定时时间到之前是否接入所述第一GSM小区。其中，所述定时器的定时时长可以根据需要进行设置。
本实施例中，可通过相关的信令配置检测所述终端在预设时间段内是否接入第一GSM小区；相应的，也可通过相关的信令配置检测所述终端是否基于第一GSM小区的网络资源建立语音通话。
作为一种实施方式，所述确定所述CSFB回落失败后，所述方法还包括：基于所述终端再次发起CSFB流程接入所述第二GSM小区，检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
其中，在基于所述第一GSM小区确定所述CSFB回落失败后，继续尝试在第二GSM小区发起接入，检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
采用本发明实施例的技术方案，能够在网络侧配置的邻小区(第二GSM小区)由于网络拥塞使得终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断的场景下检测出CSFB过程中在GSM网络下的语音通话状态，从而最终确定出CSFB的回落结果，这样，在后续进行CSFB的过程中，可以进一步完善优化方案来提高CSFB过程成功的概率，以提升用户的呼叫体验。
实施例二
在本应用实施例中，通过仿真平台构造一个网络环境，包括时分双工(TDD)-LTE小区、时分同步码分多址(TD-SCDMA，Time Division-Synchronous Code Division Multiple Access)小区、GSM小区；其中，LTE SIB中配置GSM1邻区小区信息，配置GSM 1小区为邻区小区，在GSM SI中配置LTE邻区小区信息，配置GSM 1小区为异常小区。
本应用实施例的异常场景是：由网络侧配置的GSM 1小区的服务不可靠，终端发起CSFB流程接入GSM 1小区后进行语音呼叫过程中连接中断(即终端响铃后掉话)，在这种情况下终端可利用未配置为邻区小区信息的GSM 0小区进行CSFB流程，从而验证UE侧通话优化方案的有效性和合理性。
本应用实施例CSFB的回落结果的检测方法，如图2所示，包括以下步骤：
步骤200：UE注册在LTE小区上，进行附着流程。
具体地，UE为MT，UE开机后，首先执行联合演进分组系统(EPS，Evolved Packet System)/国际移动用户识别码(IMSI，International Mobile Subscriber Identification Number)附着流程。
其中，在这个过程中包括触发UE向LTE基站发送附着请求消息(Attach Request)，接收所述LTE基站发送的附着接受消息(Attach Accept)，其中，所述附着接受消息携带用于指示所述终端采用预设的CSFB优化方案进行语音业务的指示信息。图3为本发明实施例的仿真代码的示意图一，其中：IMS voice over PS(V)＝Not supported(0)，代表所述指示信息。
步骤201：网络侧触发MT CSFB流程，网络侧发送寻呼消息(Paging)给UE，开始CSFB流程。
这里，实际应用时，需要MO首先发起针对MT的呼叫，然后，MT才接收到网络侧下发的寻呼消息。
具体地，网络中的移动业务交换中心(MSC)收到初始地址请求(IAM)入局消息后，根据存在的SGs关联和移动管理实体(MME，Mobility Management Entity)信息，发送SGsAP-PAGING-REQUEST消息给MME，这里，SGsAP-PAGING-REQUEST消息携带如下信息：IMSI、临时移动用户标识(TMSI，Temporary Mobile Subscriber Identity)、业务标识(Service indicator)、主叫号码、位置区信息。
MME收到消息后发送寻呼(Paging)消息给基站，基站发起空口的Paging流程。UE建立连接并发送Extended Service Request消息给MME，MME发送SGsAP-SERVICE-REQUEST消息给MSC，MSC收到此消息，不再向MME重发寻呼请求消息。为避免呼叫接续过程中，主叫等待时间过 长，MSC收到包含空闲态指示的SGs Service Request消息，先通知主叫呼叫正在接续过程中。MME发送Initial UE Context Setup消息给基站，这里，Initial UE Context Setup消息携带CS Fallback Indicator，CS Fallback Indicator用于指示基站UE因CSFB业务需要回落到UMTS陆地无线接入网(UTRAN，UMTS Terrestrial Radio Access Network)/GSM/EDGE无线接入网(GERAN，GSM EDGE Radio Access Network)。
在附着流程中，UE收到LTE基站发送的LTE_RRCConnectionRelease信令，即重定向命令。重定向命令中携带GSM 1小区的频点信息。如图4所示，基站下发R8重定向命令(rrcConnectionRelease_R8(0))给UE，该命令携带GSM 1小区的频点信息，由于GSM 1小区服务不可靠，这种异常场景导致UE在执行CSFB流程接入至GSM 1小区后进行语音呼叫过程中连接中断(即终端响铃后掉话)，即UE接入GSM 1小区后，发起GSM call流程，在alerting之后，模拟发送呼叫控制断开(CC Disconnect，Call Control Disconnect)消息，触发呼叫过程中掉话。
步骤202：UE在预设时长内返回LTE网络并完成TAU流程，即UE迅速返回LTE网络并完成TAU流程。
步骤203：UE迅速进行频率扫描，获得GSM 0小区的频点信息，在预设时间段内基于所述GSM 0小区的频点信息再次发起CSFB流程，接入GSM 0小区，并请求网络资源建立语音通话。若未预设时间段内未接入GSM 0小区，则说明CSFB回落失败。其中，请求接入GSM 0小区时携带接入原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
步骤204：检测UE是否获得GSM 0小区的网络资源并建立语音通话，如果是，则执行步骤205，否则，执行步骤206：说明CSFB回落失败，也就是说，预设CSFB优化方案失败。
步骤205：检测UE是否在语音通话建立后保持语音通话，如果是，执行步骤207：说明CSFB回落成功，否则，执行步骤206，说明CSFB回落失败，也就是说，预设CSFB优化方案失败。
步骤208：UE重新尝试接入GSM 1小区，基于接入结果判定CSFB是否成功；其中，若检测到未接入GSM 1小区，或者检测到接入所述GSM 1小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败，若检测到接入GSM 1小区且成功进行语音呼叫并连接未中断，则确定所述CSFB回落成功。
实施例三
本发明实施例还提供了一种CSFB的回落结果检测装置，如图5所示，所述装置包括：
检测单元31，配置为基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在LTE基站发送的重定向命令中；
确定单元32，配置为利用所述检测单元31获得的检测结果，判断所述CSFB是否回落成功；
其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；
所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
本实施例中，所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息；
所述检测单元31，配置为基于所述终端发起的频率扫描确定所述第一GSM小区的频点信息，在所述预设时间段内基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区。
本实施例中，所述检测单元31，配置为检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
本实施例中，所述检测单元31，还配置为检测所述终端是否在预设时间段内接入第一GSM小区之前，检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成TAU流程；检测到所述终端再次发起CSFB流程。
作为第一种实施方式，所述检测单元31，还配置为当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
所述确定单元32，配置为当所述检测单元31获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
作为第二种实施方式，所述检测单元31，还配置为当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
所述确定单元32，配置为当所述检测单元31未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
作为第三种实施方式，所述确定单元32，配置为当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
本实施例中，所述检测单元31，还配置为检测所述终端是否在预设时间段内接入第一GSM小区之前，检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成TAU流程；检测到所述终端再次发起CSFB流程。
作为一种实施方式，所述确定单元32，还配置为确定所述CSFB回落失败后，基于所述终端再次发起CSFB流程接入所述第二GSM小区，所述检测单元31检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
本发明实施例中，所述CSFB的回落结果检测装置中的检测单元31和确定单元32，在实际应用中均可由中央处理器(CPU，Central Processing Unit)、数字信号处理器(DSP，Digital Signal Processor)、微控制单元(MCU，Microcontroller Unit)或可编程门阵列(FPGA，Field－Programmable Gate Array)实现。
需要说明的是：上述实施例提供的CSFB的回落结果检测装置在进行CSFB的回落结果检测时，仅以上述各程序模块的划分进行举例说明，实际应用中，可以根据需要而将上述处理分配由不同的程序模块完成，即将装置的内部结构划分成不同的程序模块，以完成以上描述的全部或者部分处理。另外，上述实施例提供的CSFB的回落结果检测装置与CSFB的回落结果检测方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
实施例四
本发明实施例还提供了一种CSFB的回落结果检测装置。图6为本发明实施例CSFB的回落结果检测装置的硬件结构组成示意图，如图6所示，CSFB的回落结果检测装置40包括至少一个处理器41和用于存储能够在处理器41上运行的计算机程序的存储器42。终端中的各个组件通过总线系统 43耦合在一起。可理解，总线系统43用于实现这些组件之间的连接通信。总线系统43除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图6中将各种总线都标为总线系统43。
可以理解，存储器42可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(ROM，Read Only Memory)、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本发明实施例描述的存储器42旨在包括但不限于这些和任意其它适合类型的存储器。
上述本发明实施例揭示的方法可以应用于处理器41中，或者由处理器41实现。处理器41可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器41中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器41可以是通用处理器、DSP，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器41可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器42，处理器41读取存储器42中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，CSFB的回落结果检测装置可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、微处理器(Microprocessor)、或其他电子元件实现，用于执行前述方法。
本实施例中，所述处理器41执行所述程序时实现：基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在LTE基站发送的重定向命令中；利用检测结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站 发送的；所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
作为一种实施方式，所述处理器41执行所述程序时实现：当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；当获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
作为一种实施方式，所述处理器41执行所述程序时实现：当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；当未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
作为一种实施方式，所述处理器41执行所述程序时实现：当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
作为一种实施方式，所述处理器41执行所述程序时实现：基于所述终端发起的频率扫描确定所述第一GSM小区的频点信息，在所述预设时间段内基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区；所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息。
作为一种实施方式，所述处理器41执行所述程序时实现：检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
作为一种实施方式，所述处理器41执行所述程序时实现：检测所述终端是否在预设时间段内接入第一GSM小区之前，检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至 LTE网络以及完成TAU流程；检测到所述终端再次发起CSFB流程。
作为一种实施方式，所述处理器41执行所述程序时实现：确定所述CSFB回落失败后，基于所述终端再次发起CSFB流程接入所述第二GSM小区，检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
实施例五
本发明实施例还提供了一种计算机存储介质，例如包括图6所示的存储有计算机程序的存储器42，上述计算机程序可由处理器41执行，以完成前述方法所述步骤。计算机存储介质可以是FRAM、ROM、PROM、EPROM、EEPROM、Flash Memory、磁表面存储器、光盘、或CD-ROM等存储器；也可以是包括上述存储器之一或任意组合的各种设备。
本实施例中，本发明实施例提供的计算机存储介质，其上存储有计算机程序，该计算机程序被处理器运行时，执行：基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在LTE基站发送的重定向命令中；利用检测结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
作为一种实施方式，该计算机程序被处理器运行时，执行：当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；当获得对应于所述第一GSM小区的网络资源 并建立语音通话时，确定所述CSFB回落成功。
作为一种实施方式，该计算机程序被处理器运行时，执行：当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；当未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
作为一种实施方式，该计算机程序被处理器运行时，执行：当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
作为一种实施方式，该计算机程序被处理器运行时，执行：基于所述终端发起的频率扫描确定所述第一GSM小区的频点信息，在所述预设时间段内基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区；所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息。
作为一种实施方式，该计算机程序被处理器运行时，执行：检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
作为一种实施方式，该计算机程序被处理器运行时，执行：检测所述终端是否在预设时间段内接入第一GSM小区之前，检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成TAU流程；检测到所述终端再次发起CSFB流程。
作为一种实施方式，该计算机程序被处理器运行时，执行：确定所述CSFB回落失败后，基于所述终端再次发起CSFB流程接入所述第二GSM小区，检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区 后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和装置，可以通过其它的方式实现。以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。

Claims (18)

  1. 一种电路域回落CSFB的回落结果检测方法，所述方法包括：
    基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一全球移动通信系统GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在长期演进LTE基站发送的重定向命令中；
    利用检测结果，判断所述CSFB是否回落成功；
    其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；
    所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
  2. 根据权利要求1所述的方法，其中，所述利用检测结果，判断所述CSFB是否回落成功，包括：
    当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
    当获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
  3. 根据权利要求1所述的方法，其中，所述利用检测结果，判断所述CSFB是否回落成功，包括：
    当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
    当未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
  4. 根据权利要求1所述的方法，其中，所述利用检测结果，判断所述CSFB是否回落成功，包括：
    当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
  5. 根据权利要求1所述的方法，其中，所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息；
    检测所述终端在预设时间段内是否接入第一GSM小区，包括：基于所述终端在所述预设时间段内发起的频率扫描确定所述第一GSM小区的频点信息，基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区。
  6. 根据权利要求1所述的方法，其中，检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
  7. 根据权利要求1所述的方法，其中，所述检测所述终端是否在预设时间段内接入第一GSM小区之前，所述方法还包括：
    检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成跟踪区更新TAU流程；
    检测到所述终端再次发起CSFB流程。
  8. 根据权利要求3或4所述的方法，其中，所述确定所述CSFB回落失败后，所述方法还包括：
    基于所述终端再次发起CSFB流程接入所述第二GSM小区，检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
  9. 一种电路域回落CSFB的回落结果检测装置，所述装置包括：
    检测单元，配置为基于指示终端采用预设的CSFB优化方案进行语音业务的指示信息发起CSFB过程中，检测所述终端是否在预设时间段内接入第一全球移动通信系统GSM小区；所述终端接入所述第一GSM小区是所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断而触发；所述第二GSM小区频点信息携带在长期演进LTE基站发送的重定向命令中；
    确定单元，配置为利用所述检测单元获得的检测结果，判断所述CSFB是否回落成功；
    其中，所述指示信息携带在所述LTE基站向所述终端发送的附着接受消息中；所述附着接受消息是所述终端向LTE基站发送附着请求消息后所述LTE基站发送的；
    所述CSFB过程是所述终端接收到所述LTE基站发送的寻呼消息时触发执行的。
  10. 根据权利要求9所述的装置，其中，
    所述检测单元，还配置为当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
    所述确定单元，配置为当所述检测单元获得对应于所述第一GSM小区的网络资源并建立语音通话时，确定所述CSFB回落成功。
  11. 根据权利要求9所述的装置，其中，
    所述检测单元，还配置为当检测到所述终端在预设时间段内接入第一GSM小区时，基于所述第一GSM小区请求网络资源建立语音通话；
    所述确定单元，配置为当所述检测单元未获得对应于所述第一GSM小区的网络资源或者未基于所述第一GSM小区的网络资源建立语音通话时，确定所述CSFB回落失败。
  12. 根据权利要求9所述的装置，其中，
    所述确定单元，配置为当检测到所述终端在预设时间段内未接入第一GSM小区时，确定所述CSFB回落失败。
  13. 根据权利要求9所述的装置，其中，所述终端的邻小区的频点信息不包括所述第一GSM小区的频点信息；
    所述检测单元，配置为基于所述终端在所述预设时间段内发起的频率扫描确定所述第一GSM小区的频点信息，基于所述第一GSM小区的频点信息接入第一GSM小区，检测所述终端在预设时间段内是否接入第一GSM小区。
  14. 根据权利要求9所述的装置，其中，所述检测单元，配置为检测到所述终端接入第一GSM小区时，携带请求接入所述第一GSM小区的原因参数，所述原因参数对应于所述终端发起CSFB流程接入第二GSM小区后进行语音呼叫过程中连接中断。
  15. 根据权利要求9所述的装置，其中，所述检测单元，还配置为检测所述终端是否在预设时间段内接入第一GSM小区之前，检测到所述终端发起CSFB流程接入第二GSM小区后语音呼叫异常时，检测到所述终端返回至LTE网络以及完成跟踪区更新TAU流程；检测到所述终端再次发起CSFB流程。
  16. 根据权利要求9所述的装置，其中，所述确定单元，还配置为确定所述CSFB回落失败后，基于所述终端再次发起CSFB流程接入所述第二GSM小区，所述检测单元检测到未接入第二GSM小区，或者检测到接入所述第二GSM小区后进行语音呼叫过程中连接中断时，确定所述CSFB回落失败。
  17. 一种CSFB的回落结果检测装置，所述装置包括：处理器和配置为存储能够在处理器上运行的计算机程序的存储器，
    其中，所述处理器配置为运行所述计算机程序时，执行权利要求1至8 任一项所述的CSFB的回落结果检测方法的步骤。
  18. 一种计算机存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至8任一项所述的CSFB的回落结果检测方法的步骤。
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