WO2019061478A1 - 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
WO2019061478A1
WO2019061478A1 PCT/CN2017/104942 CN2017104942W WO2019061478A1 WO 2019061478 A1 WO2019061478 A1 WO 2019061478A1 CN 2017104942 W CN2017104942 W CN 2017104942W WO 2019061478 A1 WO2019061478 A1 WO 2019061478A1
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csfb
terminal
access request
gsm cell
sent
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PCT/CN2017/104942
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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/CN2017/104942 priority Critical patent/WO2019061478A1/zh
Priority to CN201780001982.8A priority patent/CN108064464B/zh
Publication of WO2019061478A1 publication Critical patent/WO2019061478A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

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 provides a method for detecting a fallback result of a CSFB, where the method includes:
  • Instructing information based on the instruction that the terminal uses the preset CSFB optimization scheme for voice service During the execution of the CSFB, detecting a transmission result of the second access request sent by the terminal to a global mobile communication system (GSM, Global System for Mobile Communication) cell; the second access request of the terminal is based on the terminal When the cause value carried by the first access request sent by the GSM cell is the first preset value, is triggered;
  • GSM Global System for Mobile Communication
  • 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 sending result, whether the CSFB is successfully dropped includes:
  • determining that the CSFB falls back fails, including:
  • the determining, by using the sending result, whether the CSFB is successfully dropped includes:
  • the determining, by using the sending result, whether the CSFB is successfully dropped includes:
  • the second connection When detecting that the terminal sends a second access request to the GSM cell, the second connection When the reason value carried in the request is the second preset value, and the voice call is successfully established, it is determined that the CSFB is successfully dropped.
  • the detecting, by the terminal, the sending result of the second access request sent by the terminal to the GSM cell 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, according to the indication that the terminal performs the CSFB by using the preset CSFB optimization scheme to perform the voice service, the detection result of the second access request sent by the terminal to the GSM cell;
  • the second access request is triggered when the cause value carried by the first access request sent by the terminal to the GSM cell is a first preset value;
  • a determining unit configured to determine, by using the sending result, whether the CSFB is successfully dropped
  • 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 unit is configured to:
  • the determining unit is configured to: when it is detected that the terminal does not send a second access request to the GSM cell within a preset duration, determine that the CSFB fallback fails.
  • the determining unit is configured to: send, by the terminal, the GSM cell
  • the GSM cell When the second access request is detected, when it is detected that the cause value carried in the second access request is not the second preset value, it is determined that the CSFB fallback fails.
  • the detecting unit is configured to:
  • the embodiment of the invention further provides a CSFB fallback result detecting device, the device comprising: a processor and a memory configured to store a computer program capable of running on the processor,
  • processor is configured to perform the steps of any of the above methods when the computer program is run.
  • Embodiments of the present invention also provide a computer storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of any of the above methods.
  • the technical solution provided by the embodiment of the present invention detects a sending result of the second access request sent by the terminal to the GSM 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 second access request of the terminal is triggered when the cause value carried by the first access request sent by the terminal to the GSM cell is a first preset value; using the sending result, determining whether the CSFB is
  • the LTE base station sends the LTE base station to the LTE base station after the terminal sends an attach request message to the LTE base station, where the LTE base station sends the 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, and the scenario provided by the embodiment of the present invention can be used in the scenario where multiple error GSM cell information is sent by the network side in the CSFB process.
  • FIG. 1 is a flowchart of channel acquisition according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for detecting a fallback result of a CSFB according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for detecting a fallback result of a CSFB according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram 1 of an emulation code according to an embodiment of the present invention.
  • FIG. 5 is a second schematic diagram of a simulation code according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a CSFB fallback result detecting apparatus according to an embodiment of the present invention.
  • FIG. 7 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 includes 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 for access; 3) The UE reads the GSM cell system broadcast message and establishes a voice call.
  • the channel acquisition process is described below.
  • FIG. 1 is a flowchart of channel acquisition according to an embodiment of the present invention. As shown in FIG. 1 , the channel acquisition process includes the following steps:
  • Step 101 The UE is powered on, and performs an Evolved Packet System (EPS)/International Mobile Subscriber Identification Number (IMSI) attachment.
  • EPS Evolved Packet System
  • IMSI International Mobile Subscriber Identification Number
  • Step 102 The UE receives the CS paging message and starts executing the CSFB process.
  • Step 103 The UE receives the redirection command sent by the network side, where the redirection command carries the frequency information of the GMS cell.
  • the redirection command is implemented by LTE_RRCConnectionRelease signaling.
  • Step 104 The UE scans the frequency of the GSM cell based on the frequency information of the GMS cell carried in the redirection command, and selects a frequency point of the GSM cell for communication.
  • the frequency point of the selected GSM cell is referred to as a target frequency point.
  • Step 105 The UE sends a channel request message (CHANNEL_REQUEST), that is, an access request message, to the network based on the target frequency point.
  • a channel request message (CHANNEL_REQUEST)
  • the T3120 timer is started to count the number of retransmissions of CHANNEL_REQUEST by the random access procedure, and the maximum number of retransmissions is preset.
  • the terminal will start the T3126 timer to time the terminal to silently not send CHANNEL_REQUEST; if the T3126 timer expires (the time is reached), the network still has no If the channel request of the terminal is answered, the terminal abandons the request attempt.
  • Step 106 The UE receives the IM message replied by the network, and obtains the channel allocated by the network by using the IM message.
  • 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 where multiple erroneous GSM cell information is sent by the network side.
  • detecting a transmission result of the second access request sent by the terminal to the GSM cell detecting a transmission result of the second access request sent by the terminal to the GSM cell;
  • the second access request of the terminal is triggered when the cause value carried by the first access request sent by the terminal to the GSM cell is a first preset value; and the CSFB is determined by using the sending result.
  • 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 sending result of the second access request in the CSFB process is detected in the scenario where the network side sends multiple erroneous GSM cell information in the CSFB process, thereby finally determining the CSFB fallback result.
  • the optimization scheme can be further improved to improve the probability of success of the CSFB process, so as to improve the user's calling experience.
  • the CSFB fallback result detecting method includes the following steps:
  • Step 201 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 transmission result of the second access request sent by the terminal to the GSM cell;
  • the second access request of the terminal is based on the terminal sending to the GSM cell.
  • the reason that the reason value carried by the first access request is the first preset value is triggered.
  • the reason that the first preset value can represent the access request is to respond to the 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 The terminal triggers execution when receiving the paging message sent by the LTE base station.
  • 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, so that the personnel cost can be reduced. On the other hand, the scene in the scene may also contain other factors, thereby affecting the detection result. Therefore, the simulation network of the embodiment of the present invention can stably reproduce the scene.
  • the CSFB anomaly scenario that occurs in the network can eliminate the influence of other factors on the detection result in the scenario described in the embodiment of the present invention.
  • the transmission result of the second access request sent by the terminal to the GSM cell in the simulated network environment is detected.
  • Step 202 Determine, by using the sending result, whether the CSFB is successfully dropped.
  • the purpose of detecting whether the terminal wants the GSM cell to send a second access request within a preset duration is to prevent the detection time from being too long.
  • the preset duration can be set as needed.
  • the timer can be detected by setting a timer. Specifically, the timer is set. When it is detected that the terminal does not send an access request to the neighboring cell before the timer expires, it is determined that the CSFB fallback fails. Among them, The role of the timer is to prevent the detection time from being too long.
  • the terminal when it is detected that the cause value carried in the second access request is not the second preset value, determining the CSFB Fallback failed.
  • the second preset value is the reason value carried in the second access request, and the voice call is successfully established, determining the CSFB fell back successfully.
  • the second preset value may be set as needed.
  • the reason that the second preset value can characterize the access request is a location update.
  • the method provided by the embodiment of the present invention detects a sending result of the second access request sent by the terminal to the GSM cell in the process of performing the CSFB according to the indication information indicating that the terminal uses the preset CSFB optimization scheme to perform the voice service;
  • the second access request of the terminal is triggered when the reason value carried by the first access request sent by the terminal to the GSM cell is a first preset value; using the sending result, determining whether the CSFB is falling back Successfully, 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
  • the 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 detect multiple GSM cell information in the CSFB process.
  • the result of the second access request is sent out during the CSFB process, thereby finally determining the CSFB fallback result, so that in the subsequent CSFB process, Further improve the optimization scheme to improve the probability of success CSFB process in order to enhance the user's call experience.
  • the simulation method does not require the staff to go to the site, and other factors affecting the detection can be removed, so that the Reduce personnel costs while being able to eliminate The influence of other factors on the detection result in the scenario described in the embodiment of the present invention.
  • a network environment is constructed by using a simulation platform, including a time division duplex (TDD)-LTE cell, a TDSCDMA cell, and a GSM cell.
  • TDD time division duplex
  • GSM neighboring cell information is configured in the LTE SIB
  • LTE neighboring is configured in the GSM SI. District cell information.
  • the abnormal scenario of the application embodiment is that the network side does not respond to the access request (ChannelRequest) with the cause value of AnswerToPaging initiated in the CSFB process, 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. 3, includes the following steps:
  • Step 300 The UE is registered on the LTE cell to perform an attach procedure.
  • the UE is an MT, and after the UE is powered on, the joint EPS/IMSI attach procedure is first performed.
  • 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 301 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 mobility TMSI (Temporary Mobile Subscriber Identity), service indicator (Service indicator), calling number, 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.
  • 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 frequency information of multiple erroneous GSM cells.
  • the base station sends an R8 redirection command (rrcConnectionRelease_R8(0)) to the UE, but the command carries the frequency information of multiple erroneous GSM cells, which does not match the neighboring cell GSM cell. Direct the terminal to fall back to the target GSM cell.
  • Step 302 The simulation platform starts to detect the cause value carried by the UE-initiated access request (ie, the Channel Request) in the GSM layer, and if it is an AnswerToPaging, the simulated abnormal network situation ignores the access request of the current UE;
  • the cause value carried by the UE-initiated access request ie, the Channel Request
  • the simulated abnormal network situation ignores the access request of the current UE
  • Step 303 Detect whether the UE initiates an access request (ie, Channel Request) within a specified timer duration. If yes, execute step 304. Otherwise, the CSFB fallback fails, that is, the preset CSFB optimization scheme fails.
  • Step 304 Detect whether the reason carried in the access request is a preset value (ie, Location Update), and if yes, execute step 305. Otherwise, the CSFB is lost. Failure, that is, the default CSFB optimization scheme fails;
  • Step 305 Continue the CSFB follow-up process, and check whether the UE successfully establishes a CS voice call with the GSM cell in the subsequent process. If yes, the CSFB fallback success indicates that the preset CSFB optimization scheme is successful. Otherwise, the CSFB fallback fails, that is, Said that the default CSFB optimization scheme failed.
  • the embodiment of the present invention further provides a CSFB fallback result detecting device.
  • the device includes:
  • the detecting unit 61 is configured to detect a sending result of the second access request sent by the terminal to the global mobile communication system GSM 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 second access request of the terminal is triggered when the cause value carried by the first access request sent by the terminal to the GSM cell is a first preset value;
  • the determining unit 62 is configured to determine, by using the sending result, whether the CSFB is successfully dropped;
  • the indication information is carried in an attach accept message sent by the long term evolution 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 unit 62 is configured to:
  • the determining unit 62 is configured to:
  • the determining unit 62 is configured to:
  • the determining unit 62 is configured to:
  • the detecting unit 61 is configured to:
  • the detecting unit 61 and the determining unit 62 may be implemented by a processor in the fallback result detecting device of the CSFB.
  • 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.
  • each unit in the fallback result detecting device of the above CSFB in order to implement the method provided by the embodiment of the present invention, the embodiment of the present invention further provides a CSFB fallback result detecting device, as shown in FIG. 70 includes a processor 71 and a memory 72 configured to store a computer program executable on the processor,
  • the processor 71 is configured to execute when the computer program is executed:
  • the process of performing the CSFB according to the indication information indicating that the terminal performs the voice service by using the preset CSFB optimization scheme detecting a transmission result of the second access request sent by the terminal to the GSM cell; the second access request of the terminal is And triggering when the cause value carried by the first access request sent by the terminal to the GSM cell is a first preset value;
  • 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 processor 71 is configured to execute when the computer program is executed:
  • the processor 71 is configured to execute when the computer program is executed:
  • the processor 71 is configured to execute when the computer program is executed:
  • the processor 71 is configured to execute when the computer program is executed:
  • the processor 71 is configured to execute when the computer program is executed:
  • bus system 73 is used to implement connection communication between these components.
  • the bus system 73 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as the bus system 73 in FIG.
  • an embodiment of the present invention further provides a computer storage medium, which is a computer readable storage medium, such as a memory 72 including a computer program, which may be processed by a processor 71 of the CSFB fall result detection device 70. Executing to complete the steps described in the previous methods.
  • the computer readable storage medium may be a magnetic random access memory (FRAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), and an erasable memory. Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash Memory, Magnetic Surface Memory, Optical Disc Or a memory such as a CD-ROM (Compact Disc Read-Only Memory).
  • the disclosed method and smart device 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 components shown or discussed The coupling, or direct coupling, or communication connection between the components may be an indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms.
  • 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.
  • the solution provided by the embodiment of the present invention detects a transmission result of the second access request sent by the terminal to the GSM 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 second access request of the terminal is triggered when the reason value carried by the first access request sent by the terminal to the GSM cell is a first preset value; using the sending result, determining whether the CSFB is falling back Successfully, 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
  • the 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 detect multiple GSM cell information in the CSFB process.
  • the optimization scheme can be further improved to improve the probability of successful CSFB process, so as to improve the user's calling experience.

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Abstract

本发明公开了一种CSFB的回落结果检测方法、装置及计算机存储介质。其中方法包括：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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；利用所述发送结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在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。
本发明实施例提供了一种CSFB的回落结果检测方法，所述方法包括：
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 执行CSFB过程中，检测所述终端向全球移动通信系统(GSM，Global System for Mobile Communication)小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；
利用所述发送结果，判断所述CSFB是否回落成功；其中，
所述指示信息携带在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。
上述方案中，所述利用所述发送结果，判断所述CSFB是否回落成功，包括：
当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
上述方案中，所述当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败，包括：
当检测到所述终端在预设时长内未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
上述方案中，所述利用所述发送结果，判断所述CSFB是否回落成功，包括：
所述终端向所述GSM小区发送了第二接入请求时，当检测到所述第二接入请求中携带的原因值不是第二预设值时，确定所述CSFB回落失败。
上述方案中，所述利用所述发送结果，判断所述CSFB是否回落成功，包括：
当检测到所述终端向所述GSM小区发送了第二接入请求，所述第二接 入请求中携带的原因值时第二预设值，且成功建立语音通话时，确定所述CSFB回落成功。
上述方案中，所述检测所述终端向GSM小区发送的第二接入请求的发送结果，包括：
检测位于仿真网络环境下的所述终端向GSM小区发送的第二接入请求的发送结果。
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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；
确定单元，配置为利用所述发送结果，判断所述CSFB是否回落成功；其中，
所述指示信息携带在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。
上述方案中，所述确定单元，配置为：
当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
上述方案中，所述确定单元，配置为：当检测到所述终端在预设时长内未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
上述方案中，所述确定单元，配置为：所述终端向所述GSM小区发送 了第二接入请求时，当检测到所述第二接入请求中携带的原因值不是第二预设值时，确定所述CSFB回落失败。
上述方案中，所述检测单元，配置为：
检测位于仿真网络环境下的所述终端向GSM小区发送的第二接入请求的发送结果。
本发明实施例又提供了一种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，执行上述任一方法的步骤。
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上述任一方法的步骤。
本发明实施例提供的技术方案，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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；利用所述发送结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在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，采用本发明实施例提供的方案，能够在CSFB过程中网络侧下发多个错误的GSM小区信息的场景下检测出CSFB过程中第二接入请求的发送结果，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为本发明实施例的信道获取流程图；
图2为本发明实施例CSFB的回落结果检测方法的流程示意图；
图3为本发明应用实施例CSFB的回落结果检测方法的流程示意图；
图4为本发明实施例仿真代码的示意图一；
图5为本发明实施例的仿真代码的示意图二；
图6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7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小区进行接入；3)UE读取GSM小区系统广播消息并建立语音通话。
此外，CSFB过程中的比较重要的一个过程是信道获取过程，以下对信道获取过程进行阐述。
图1为本发明实施例的信道获取流程图，如图1所示，所述信道获取流程包括以下步骤：
步骤101：UE开机，并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。
步骤102：UE接收到CS寻呼消息，开始执行CSFB过程。
步骤103：UE接收到网络侧下发的重定向命令，在重定向命令中携带GMS小区的频点信息。
这里，重定向命令通过LTE_RRCConnectionRelease信令来实现。
步骤104：UE基于重定向命令中携带的GMS小区的频点信息，扫描GSM小区的频点，并选择出一个GSM小区的频点用于进行通信。
这里，将所选择出的GSM小区的频点称为目标频点。
步骤105：UE基于所述目标频点，向网络发送信道请求消息(CHANNEL_REQUEST)，即接入请求消息。
这里，终端初次发送CHANNEL_REQUEST后，启动T3120定时器以统计通过随机接入过程重发CHANNEL_REQUEST的次数，并预设了最大重发次数。当定时器T3120逾时且达到“最大重发次数”时，终端将启动T3126定时器以对终端静默不发CHANNEL_REQUEST的时间进行计时；如果T3126定时器逾时(达到计时的时间)网络仍没有对终端的信道请求有应答，则终端放弃请求尝试。
步骤106：UE接收网络回复的IM消息，通过IM消息获得网络分配的信道。
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下发多个错误的GSM小区信息的场景下，CSFB回落结果的检测方法。
在本发明的各种实施例中，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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；利用所述发送结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在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。
采用本发明实施例提供的方案，能够在CSFB过程中网络侧下发多个错误的GSM小区信息的场景下检测出CSFB过程中第二接入请求的发送结果，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。
图2为本发明实施例提供的CSFB的回落结果检测方法的流程示意图，如图2所示，所述CSFB的回落结果检测方法包括以下步骤：
步骤201：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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；
这里，所述终端的第二接入请求是基于所述终端向所述GSM小区发 送的第一接入请求携带的原因值是第一预设值时触发的。
其中，所述第一预设值可以表征接入请求的原因是回应呼叫。
所述指示信息携带在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。
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向GSM小区发送的第二接入请求的发送结果。
步骤202：利用所述发送结果，判断所述CSFB是否回落成功。
具体地，当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
其中，实际应用时，当检测到所述终端在预设时长内未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
这里，检测所述终端在预设时长内是否想所述GSM小区发送第二接入请求的目的是防止检测时间过长。
这里，所述预设时长可以根据需要设置。另外，可以通过设置定时器的方式来检测，具体地，设置定时器，当检测到所述终端在定时器超时之前未向所述邻小区发送接入请求时，确定所述CSFB回落失败。其中，定 时器的作用是防止检测时间过长。
在一些实施例中，所述终端向所述GSM小区发送了第二接入请求时，当检测到所述第二接入请求中携带的原因值不是第二预设值时，确定所述CSFB回落失败。
当然，当检测到所述终端向所述GSM小区发送了第二接入请求，所述第二接入请求中携带的原因值时第二预设值，且成功建立语音通话时，确定所述CSFB回落成功。
其中，所述第二预设值可以根据需要设置。所述第二预设值可以表征接入请求的原因是位置更新。
本发明实施例提供的方法，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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；利用所述发送结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在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，采用本发明实施例提供的方案，能够在CSFB过程中网络侧下发多个错误的GSM小区信息的场景下检测出CSFB过程中第二接入请求的发送结果，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。
另外，检测位于仿真网络环境下的所述终端向GSM小区发送的第二接入请求的发送结果，采用仿真的方式不需要工作人员去现场，且可以去除其他影响检测的因素，如此，能够大大降低人员成本，同时，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。
下面结合一个应用实施例对本发明再作进一步详细的描述。
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、TDSCDMA小区、GSM小区；其中，LTE SIB中配置GSM邻小区信息，在GSM SI中配置LTE邻区小区信息。
本应用实施例的异常场景是：网络侧不响应在CSFB流程中发起的带有原因值为回应呼叫(AnswerToPaging)的接入请求(ChannelRequest)，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3所示，包括以下步骤：
步骤300：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EPS/IMSI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4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301：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。重定向命令中携带多个错误的GSM小区的频点信息。如图5所示，基站下发R8重定向命令(rrcConnectionRelease_R8(0))给UE，但是该命令携带多个错误的GSM小区的频点信息，跟邻小区GSM小区不吻合，这种异常场景无法指引终端回落至目标GSM小区。
步骤302：仿真平台开始在GSM层检测UE发起的接入请求(即Channel Request)携带的原因值，如果是AnswerToPaging，则模拟异常网络情况忽视本次UE的接入请求；
步骤303：检测UE是否在指定的定时器时长内再次发起接入请求(即Channel Request)，如果是，则执行步骤304，否则，说明CSFB回落失败，也就是说，预设CSFB优化方案失败；
步骤304：检测接入请求中携带的原因是是否是预设值(即位置更新(LocationUpdate))，如果是，则执行步骤305，否则，说明CSFB回落失 败，也就是说，预设CSFB优化方案失败；
步骤305：继续CSFB后续流程，在后续流程中检测UE是否与GSM小区成功建立起CS语音通话，如果是，说明CSFB回落成功，说明预设CSFB优化方案成功，否则，说明CSFB回落失败，也就是说，预设CSFB优化方案失败。
为实现本发明实施例的方法，本发明实施例还提供了一种CSFB的回落结果检测装置，如图6所示，所述装置包括：
检测单元61，配置为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执行CSFB过程中，检测所述终端向全球移动通信系统GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；
确定单元62，配置为利用所述发送结果，判断所述CSFB是否回落成功；其中，
所述指示信息携带在长期演进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。
在一些实施例中，所述确定单元62，配置为：
当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
在一些实施例中，所述确定单元62，配置为：
当检测到所述终端在预设时长内未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
在一些实施例中，所述确定单元62，配置为：
所述终端向所述GSM小区发送了第二接入请求时，当检测到所述第二接入请求中携带的原因值不是第二预设值时，确定所述CSFB回落失败。
在一些实施例中，所述确定单元62，配置为：
当检测到所述终端向所述GSM小区发送了第二接入请求，所述第二接入请求中携带的原因值时第二预设值，且成功建立语音通话时，确定所述CSFB回落成功。
在一些实施例中，所述检测单元61，配置为：
检测位于仿真网络环境下的所述终端向GSM小区发送的第二接入请求的发送结果。
实际应用时，所述检测单元61、确定单元62可由CSFB的回落结果检测装置中的处理器实现。
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。
基于上述CSFB的回落结果检测装置中各单元的硬件实现，为了实现本发明实施例提供的方法，本发明实施例还提供了一种CSFB的回落结果检测装置，如图7所示，所述装置70包括：处理器71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72，
其中，所述处理器71配置为运行所述计算机程序时，执行：
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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；
利用所述发送结果，判断所述CSFB是否回落成功；其中，
所述指示信息携带在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。
在一些实施例中，所述处理器71配置为运行所述计算机程序时，执行：
当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
在一些实施例中，所述处理器71配置为运行所述计算机程序时，执行：
当检测到所述终端在预设时长内未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
在一些实施例中，所述处理器71配置为运行所述计算机程序时，执行：
所述终端向所述GSM小区发送了第二接入请求时，当检测到所述第二接入请求中携带的原因值不是第二预设值时，确定所述CSFB回落失败。
在一些实施例中，所述处理器71配置为运行所述计算机程序时，执行：
当检测到所述终端向所述GSM小区发送了第二接入请求，所述第二接入请求中携带的原因值时第二预设值，且成功建立语音通话时，确定所述CSFB回落成功。
在一些实施例中，所述处理器71配置为运行所述计算机程序时，执行：
检测位于仿真网络环境下的所述终端向GSM小区发送的第二接入请求的发送结果。
当然，实际应用时，如图7所示，该装置70中的各个组件通过总线系统73耦合在一起。可理解，总线系统73用于实现这些组件之间的连接通信。总线系统73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7中将各种总线都标为总线系统73。
在示例性实施例中，本发明实施例还提供了一种计算机存储介质，是计算机可读存储介质，例如包括计算机程序的存储器72，上述计算机程序可由CSFB的回落结果检测装置70的处理器71执行，以完成前述方法所述步骤。计算机可读存储介质可以是磁性随机存取存储器(FRAM，ferromagnetic random access memory)、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)、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)等存储器。
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，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备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。
工业实用性
本发明实施例提供的方案，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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；利用所述发送结果，判断所述CSFB是否回落成功；其中，所述指示信息携带在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，采用本发明实施例提供的方案，能够在CSFB过程中网络侧下发多个错误的GSM小区信息的场景下检测出CSFB过程中第二接入请求的发送结果，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。

Claims (13)

  1. 一种电路域回落CSFB的回落结果检测方法，所述方法包括：
    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执行CSFB过程中，检测所述终端向全球移动通信系统GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；
    利用所述发送结果，判断所述CSFB是否回落成功；其中，
    所述指示信息携带在长期演进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，所述利用所述发送结果，判断所述CSFB是否回落成功，包括：
    当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
  3. 根据权利要求2所述的方法，其中，所述当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败，包括：
    当检测到所述终端在预设时长内未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
  4. 根据权利要求1所述的方法，其中，所述利用所述发送结果，判断所述CSFB是否回落成功，包括：
    所述终端向所述GSM小区发送了第二接入请求时，当检测到所述第二接入请求中携带的原因值不是第二预设值时，确定所述CSFB回落失 败。
  5. 根据权利要求1所述的方法，其中，所述利用所述发送结果，判断所述CSFB是否回落成功，包括：
    当检测到所述终端向所述GSM小区发送了第二接入请求，所述第二接入请求中携带的原因值时第二预设值，且成功建立语音通话时，确定所述CSFB回落成功。
  6. 根据权利要求1所述的方法，其中，所述检测所述终端向GSM小区发送的第二接入请求的发送结果，包括：
    检测位于仿真网络环境下的所述终端向GSM小区发送的第二接入请求的发送结果。
  7. 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执行CSFB过程中，检测所述终端向GSM小区发送的第二接入请求的发送结果；所述终端的第二接入请求是基于所述终端向所述GSM小区发送的第一接入请求携带的原因值是第一预设值时触发的；
    确定单元，配置为利用所述发送结果，判断所述CSFB是否回落成功；其中，
    所述指示信息携带在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。
  8. 根据权利要求7所述的装置，其中，所述确定单元，配置为：
    当检测到所述终端未向所述GSM小区发送第二接入请求时，确定所 述CSFB回落失败。
  9. 根据权利要求7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长内未向所述GSM小区发送第二接入请求时，确定所述CSFB回落失败。
  10. 根据权利要求7所述的装置，其中，所述确定单元，配置为：所述终端向所述GSM小区发送了第二接入请求时，当检测到所述第二接入请求中携带的原因值不是第二预设值时，确定所述CSFB回落失败。
  11. 根据权利要求7所述的装置，其中，所述检测单元，配置为：
    检测位于仿真网络环境下的所述终端向GSM小区发送的第二接入请求的发送结果。
  12. 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6任一项所述方法的步骤。
  13. 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6任一项所述方法的步骤。
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