WO2019061488A1 - 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
WO2019061488A1
WO2019061488A1 PCT/CN2017/104974 CN2017104974W WO2019061488A1 WO 2019061488 A1 WO2019061488 A1 WO 2019061488A1 CN 2017104974 W CN2017104974 W CN 2017104974W WO 2019061488 A1 WO2019061488 A1 WO 2019061488A1
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csfb
cell
network
detection result
gsm network
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PCT/CN2017/104974
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English (en)
French (fr)
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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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Priority to PCT/CN2017/104974 priority Critical patent/WO2019061488A1/zh
Priority to CN201780002072.1A priority patent/CN108323243A/zh
Publication of WO2019061488A1 publication Critical patent/WO2019061488A1/zh

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    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]

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, including:
  • the network environment is the fourth generation mobile communication
  • the 4G service is abnormal, detecting whether the UE can initiate an access request to the first cell of the GSM network within a specified duration, and obtain a detection result;
  • the method further includes:
  • the method further includes:
  • the UE When the UE completes a preset procedure in the GSM network, the UE is controlled to return to the second cell of the LTE network.
  • the determining, according to the detection result, whether the CSFB is successfully dropped includes:
  • the detection result is that the UE cannot initiate an access request to the first cell of the GSM network within the specified time period, it is determined that the CSFB fallback fails.
  • the determining, according to the detection result, whether the CSFB is successfully dropped includes:
  • the determining whether the CSFB is successfully dropped based on the detection result further includes:
  • the detection result is that the UE can initiate an access request to the first cell of the GSM network within the specified time period, if the UE establishes a circuit domain CS call, it is determined that the CSFB fallback is successful.
  • An embodiment of the present invention provides a CSFB fallback result detecting apparatus, where the apparatus includes:
  • a control unit when the user equipment UE side triggers the calling CSFB processing, and the network environment is the first When the 4th generation mobile communication 4G service is abnormal, detecting whether the UE can initiate an access request to the first cell of the GSM network within a specified duration, and obtain a detection result;
  • the determining unit determines whether the CSFB is successfully dropped based on the detection result.
  • control unit is configured to configure the UE to be in the second cell of the LTE network, and configure the neighboring cell of the cell of the LTE network to be the first cell of the GSM network.
  • control unit triggers the UE to register in the second cell of the LTE network, and performs redirection to the GSM network; when the UE completes the preset process in the GSM network, the UE is controlled to return. To the second cell of the LTE network.
  • the determining unit determines that the CSFB fallback fails when the detection result is that the UE cannot initiate an access request to the first cell of the GSM network within the specified duration.
  • the determining unit determines that the CSFB fallback fails when the detection result is that the UE returns to the LTE network.
  • the determining unit when the detection result is that the UE can initiate an access request to the first cell of the GSM network within the specified duration, if the UE establishes a circuit domain CS call, determining the CSFB Fall back successfully.
  • the embodiment of the present invention further provides a CSFB fallback result detecting apparatus, including: 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.
  • An embodiment of the present invention further provides a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of any of the above methods.
  • the technical solution provided by the embodiment of the present invention can detect the feasibility and stability of the CSFB optimization scheme in which the 4G signal service is unavailable in the process of initiating the calling CSFB, so that the optimization scheme can be further improved to improve the probability of success of the CSFB process. To enhance the user's call Experience.
  • FIG. 1 is a schematic flowchart 1 of a method for detecting a fallback result of a CSFB according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart 2 of a method for detecting a fallback result of a CSFB according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an emulation code according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a CSFB fallback result detecting apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of 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
  • each terminal manufacturer adopts Various optimization methods are used to improve the call experience.
  • To verify the rationality of the CSFB optimization scheme it is necessary to detect the CSFB process in the abnormal scenario in order to improve the CSFB optimization scheme in a targeted manner.
  • 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 weak signal access failure of the GSM cell specified by the network side, and the mobile phone completes the CSFB according to the previous GSM strong signal cell LU record, and verifies the validity and rationality of the mobile phone side call optimization scheme.
  • FIG. 1 is a schematic flowchart of a CSFB fallback result detecting method according to an embodiment of the present invention. As shown in FIG. 1, the CSFB fallback result detecting method includes the following steps:
  • Step 101 When the user equipment UE side triggers the calling CSFB processing, and the network environment is abnormal for the fourth generation mobile communication 4G service, it is detected whether the UE can initiate an access request to the first cell of the GSM network within a specified duration, and obtain Test results;
  • Step 102 Determine whether the CSFB is successfully dropped based on the detection result.
  • the execution body corresponding to the embodiment may be a device capable of providing a network environment simulation function, that is, an environment capable of simulating at least one network by a device having the foregoing functions, for example, may include GSM, CDMA, At least one network environment of TSCDMA, WCDMA, LTE, 5G, NR.
  • a network environment simulation function that is, an environment capable of simulating at least one network by a device having the foregoing functions, for example, may include GSM, CDMA, At least one network environment of TSCDMA, WCDMA, LTE, 5G, NR.
  • 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 UE is located in the embodiment of the present invention is obtained by using an emulation method. 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. Based on this, in some embodiments, the detection is located in a simulated network environment
  • the underlying UE is in a voice call state under the GSM network.
  • the neighboring cell that configures the UE to be in the second cell of the LTE network and configures the cell of the LTE network to be the first cell of the GSM network may be configured in advance.
  • the specific configuration information may include the network of each cell, and the information such as the frequency and the bandwidth. The information is not described here.
  • the configuration information can be sent to the SIB through the SI information.
  • the preset policy is determined, for example, it can be determined that the mode is in the SIB8, and there are other configuration situations, which are not exhaustive here.
  • the foregoing network environment is a fourth-generation mobile communication 4G service abnormality, and the device described in this embodiment can be used to simulate that the UE is in an abnormal network environment.
  • the specific simulation mode is not limited herein.
  • the related rejection information may be sent to the UE that initiates the access to the 4G, for example, the CS domain temporarily not available.
  • the method may include:
  • the redirection may be an RRC redirection.
  • the preset process may include: a process of location update (LU) and GMM RAU (route update).
  • LU location update
  • GMM RAU route update
  • Determining whether the CSFB is successfully dropped based on the detection result includes:
  • Determining whether the CSFB is successfully dropped based on the detection result further includes:
  • the detection result is that the UE can initiate an access request to the first cell of the GSM network within the specified time period, if the UE establishes a circuit domain CS call, it is determined that the CSFB fallback is successful.
  • the method provided by the embodiment of the present invention can detect whether the UE can initiate an access request to the first cell of the GSM network within a specified duration in the scenario that the 4G signal service is unavailable in the process of initiating the calling CSFB, to determine the location. Whether CSFB falls back successfully, which verifies the feasibility and stability of the CSFB optimization scheme in this scenario, so that 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 simulation method does not require a staff to go to the site, and other factors affecting the detection can be removed, thereby greatly reducing personnel costs, and at the same time The influence of other factors on the detection result in the scenario described in the embodiment of the present invention can be eliminated.
  • a network environment is constructed by using a simulation platform, including a frequency division duplex (FDD)-LTE cell, a WCDMA cell, and a GSM cell.
  • FDD frequency division duplex
  • the WCDMA 1 is configured as neighbor cell information in the LTE SIB
  • the GSM cell is configured.
  • the LTE neighbor cell information is configured in the WCDMA SIB18.
  • the application embodiment provides a CSFB anomaly scenario: when the mobile phone side initiates the calling CSFB, the 4G signal service is unavailable, and the validity and rationality of the mobile phone side call optimization scheme are verified.
  • the network side configures the UE, and the cell of the GSM network is a neighboring cell;
  • the simulation network constructs a network environment, including a TDD-LTE/TDSCDMA/GSM cell, where GSM is configured as neighbor cell information in the LTE SIB. Configuring LTE in GSM SI Neighbor cell information.
  • the detection method of the fallback result of the CSFB of this application embodiment, as shown in FIG. 2, includes the following steps:
  • the following processing may be performed in advance, triggering the UE to register to the LTE cell, and RRC redirecting the RRC Redirection to the GSM network, allowing the UE to complete the LU and GMM RAU processes on the GSM cell, and then returning to the LTE cell;
  • Step 201 After the UE returns to the LTE cell, it is sent to the UE in the LTE attach request receiving Attach Accept, and the specified voice scheme is CSFB.
  • 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 UE
  • the preset CSFB optimization scheme is used to indicate the voice service.
  • Step 202 The UE triggers the MO CSFB process, and sends an extended service request on the LTE network, and the abnormal service is unavailable under the network simulation 4G: CS domain temporarily not available;
  • 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 (UTRAN)/GSM/EDGE radio access network due to CSFB service requirements.
  • UTRAN UMTS Terrestrial Radio Access Network
  • GSM/EDGE Radio Access Network GSM EDGE Radio Access Network
  • the UE receives the LTE_RRCConnectionRelease signaling sent by the LTE base station, that is, the redirect command.
  • Step 203 Detect whether the UE can automatically initiate a power scan to initiate a power request to the neighboring GSM frequency point within the specified timer, and carry the correct access request cause value; if yes, execute step 204; otherwise, The optimization solution failed.
  • Step 204 The network side starts the CSFB follow-up process at the GSM layer, and checks that the mobile phone can successfully establish a CS voice call, indicating that the solution optimization is successful.
  • the determining scheme optimization fails may include the following two reasons: 1. The UE cannot initiate a GSM 0 access request Channel Request within the specified timer, and determines that the optimization scheme fails, FAIL;
  • an embodiment of the present invention further provides a CSFB A fallback result detecting device, as shown in FIG. 4, the device includes:
  • the control unit 41 when the user equipment UE side triggers the calling CSFB processing, and the network environment is the fourth generation mobile communication 4G service abnormality, detecting whether the UE can initiate an access request to the first cell of the GSM network within a specified time period, Obtaining test results;
  • the determining unit 42 determines whether the CSFB is successfully dropped based on the detection result.
  • the execution body corresponding to the embodiment may be a device capable of providing a network environment simulation function, that is, an environment capable of simulating at least one network by a device having the foregoing functions, for example, may include GSM, CDMA, At least one network environment of TSCDMA, WCDMA, LTE, 5G, NR.
  • a network environment simulation function that is, an environment capable of simulating at least one network by a device having the foregoing functions, for example, may include GSM, CDMA, At least one network environment of TSCDMA, WCDMA, LTE, 5G, NR.
  • 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 UE is located in the embodiment of the present invention is obtained by using an emulation method. 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. Based on this, in some embodiments, the voice call state of the UE under the GSM network in the simulated network environment is detected.
  • the neighboring cell that configures the UE to be in the second cell of the LTE network and configures the cell of the LTE network to be the first cell of the GSM network may be configured in advance.
  • the specific configuration information may include the network of each cell, and the information such as the frequency and the bandwidth. The information is not described here.
  • the configuration information can be sent to the SIB through the SI information.
  • the preset policy is determined, for example, it can be determined that the mode is in the SIB8, and there are other configuration situations, which are not exhaustive here.
  • the foregoing network environment is a fourth-generation mobile communication 4G service abnormality, which can be described in this embodiment.
  • the device is simulated to obtain that the UE is in an abnormal network environment, and the specific simulation manner is not limited herein.
  • the related rejection information may be sent to the UE that initiates the access to the 4G, for example, the CS domain temporarily not available.
  • control unit 41 is configured to trigger the UE to register in the second cell of the LTE network, and perform redirection to the GSM network;
  • the UE When the UE completes a preset procedure in the GSM network, the UE is controlled to return to the second cell of the LTE network.
  • the redirection may be an RRC redirection.
  • the preset process may include: a process of location update (LU) and GMM RAU (route update).
  • LU location update
  • GMM RAU route update
  • the determining unit 42 determines that the CSFB fallback fails when the detection result is that the UE cannot initiate an access request to the first cell of the GSM network within the specified duration;
  • the determining unit 42 determines that the CSFB is successfully dropped if the UE establishes a circuit domain CS call when the UE can initiate an access request to the first cell of the GSM network within the specified duration.
  • the method provided by the embodiment of the present invention can detect whether the UE can initiate an access request to the first cell of the GSM network within a specified duration in the scenario that the 4G signal service is unavailable in the process of initiating the calling CSFB, to determine the location. Whether CSFB falls back successfully, which verifies the feasibility and stability of the CSFB optimization scheme in this scenario, so that 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.
  • detecting the voice call of the UE under the GSM network in the simulated network environment does not require a staff member to go to the site, and other factors that affect the detection can be removed.
  • the personnel cost can be greatly reduced, and at the same time, other factors can be eliminated from the detection result in the scenario described in the embodiment of the present invention. influences.
  • 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 CSFB is provided.
  • the embodiment of the present invention further provides a CSFB fallback result detecting device.
  • the device 50 is provided.
  • a processor 51 and a memory 52 configured to store a computer program capable of running on a processor,
  • the processor 51 is configured to execute the method steps in the foregoing embodiments when the computer program is executed.
  • bus system 53 the various components of the device 50 are coupled together by a bus system 53. It will be appreciated that the bus system 53 is used to implement connection communication between these components.
  • the bus system 53 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 53 in FIG.
  • an embodiment of the present invention further provides a computer readable storage medium, such as a memory 52 including a computer program, which may be executed by the processor 51 of the CSFB fall result detection device 50 to complete the foregoing Method described.
  • the computer readable storage medium may be a magnetic random access memory (FRAM) Memory), read only memory (ROM, Read Only Memory), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), Flash Memory, Magnetic Surface Memory, Optical Disk, or CD-ROM (Compact Disc Read-Only Memory) Memory.
  • FRAM magnetic random access memory
  • ROM Read Only Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read-Only Memory
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • Flash Memory Magnetic Surface Memory, Optical Disk, or CD-ROM (Compact Disc Read-Only Memory) 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 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.
  • the technical solution provided by the embodiment of the present invention can detect whether the UE can initiate an access request to the first cell of the GSM network within a specified time period in the scenario that the 4G signal service is unavailable in the process of initiating the calling CSFB. Whether the CSFB falls back successfully, thereby verifying the feasibility and stability of the CSFB optimization scheme in the scenario, so that 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.

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Abstract

本发明公开了一种CSFB的回落结果检测方法、装置及计算机可读存储介质。其中方法包括：当用户设备UE侧触发主叫CSFB处理、且网络环境为第四代移动通信4G服务异常时，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，得到检测结果；基于所述检测结果判断所述CSFB是否回落成功。

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。
本发明实施例提供一种CSFB的回落结果检测方法，包括：
当用户设备UE侧触发主叫CSFB处理、且网络环境为第四代移动通 信4G服务异常时，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，得到检测结果；
基于所述检测结果判断所述CSFB是否回落成功。
上述方案中，所述方法还包括：
配置所述UE处于LTE网络的第二小区中、并配置所述LTE网络的小区的相邻小区为GSM网络的第一小区。
上述方案中，所述方法还包括：
触发所述UE注册到LTE网络的第二小区中，并进行重定向至GSM网络；
当所述UE在所述GSM网络完成预设流程，控制所述UE返回至所述LTE网络的第二小区。
上述方案中，所述基于所述检测结果判断所述CSFB是否回落成功，包括：
当检测结果为所述UE不能在所述指定时长内向GSM网络的第一小区发起接入请求时，确定所述CSFB回落失败。
上述方案中，所述基于所述检测结果判断所述CSFB是否回落成功，包括：
当检测结果为所述UE返回LTE网络时，确定所述CSFB回落失败。
上述方案中，所述基于所述检测结果判断所述CSFB是否回落成功，还包括：
当检测结果为所述UE能在所述指定时长内向GSM网络的第一小区发起接入请求时，若所述UE建立电路域CS通话，则确定所述CSFB回落成功。
本发明实施例提供一种CSFB的回落结果检测装置，所述装置包括：
控制单元，当用户设备UE侧触发主叫CSFB处理、且网络环境为第 四代移动通信4G服务异常时，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，得到检测结果；
判断单元，基于所述检测结果判断所述CSFB是否回落成功。
上述方案中，所述控制单元，配置所述UE处于LTE网络的第二小区中、并配置所述LTE网络的小区的相邻小区为GSM网络的第一小区。
上述方案中，所述控制单元，触发所述UE注册到LTE网络的第二小区中，并进行重定向至GSM网络；当所述UE在所述GSM网络完成预设流程，控制所述UE返回至所述LTE网络的第二小区。
上述方案中，所述判断单元，当检测结果为所述UE不能在所述指定时长内向GSM网络的第一小区发起接入请求时，确定所述CSFB回落失败。
上述方案中，所述判断单元，当检测结果为所述UE返回LTE网络时，确定所述CSFB回落失败。
上述方案中，所述判断单元，当检测结果为所述UE能在所述指定时长内向GSM网络的第一小区发起接入请求时，若所述UE建立电路域CS通话，则确定所述CSFB回落成功。
本发明实施例又提供了一种CSFB的回落结果检测装置，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可读存储介质，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，能够检测在发起主叫CSFB过程中，4G信号服务不可用的CSFB优化方案的可行性以及稳定性，这样，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CSFB的回落结果检测方法的流程示意图1；
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2；
图3为本发明实施例仿真代码的示意图；
图4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5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网络侧指定的GSM小区弱信号接入失败，手机根据之前的GSM强信号小区LU记录来完成CSFB，验证手机侧通话优化方案的有效性和合理性。
图1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1所示，所述CSFB的回落结果检测方法包括以下步骤：
步骤101：当用户设备UE侧触发主叫CSFB处理、且网络环境为第四代移动通信4G服务异常时，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，得到检测结果；
步骤102：基于所述检测结果判断所述CSFB是否回落成功。
这里，本实施例所对应的执行主体可以为能够具备网络环境模拟功能的装置，也就是说，通过具备前述功能的装置模拟能够模拟至少一种网络的环境，比如，可以包括有GSM、CDMA、TSCDMA、WCDMA、LTE、5G、NR中的至少一种网络环境。
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UE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UE在GSM网络下的语音通话状态。
进一步地，本实施例执行步骤101之前，可以预先配置配置所述UE处于LTE网络的第二小区中、并配置所述LTE网络的小区的相邻小区为GSM网络的第一小区。具体的配置信息中可以包括有各个小区的网络以及频点、带宽等信息，这里不进行赘述；配置信息的下发方式，可以通过SI信息，具体的放置在那个SIB中，可以根据与UE之间的预设策略来确定，比如，可以确定为方式正在SIB8中，还可以有其他的配置情况，这里不进行穷举。
前述网络环境为第四代移动通信4G服务异常，可以通过本实施例所述的装置来模拟得到所述UE处于异常的网络环境中，具体的模拟方式这里不做限定。
本实施例中，若网络模拟4G下异常服务不可用情况，那么可以向发起接入4G的UE发送相关的拒绝信息，比如，可以为：CS domain temporarily not available。
并且在执行步骤101之前，方法可以包括：
触发所述UE注册到LTE网络的第二小区中，并进行重定向至GSM网络；
当所述UE在所述GSM网络完成预设流程，控制所述UE返回至所述LTE网络的第二小区。
其中，所述重定向可以为RRC重定向。
所述预设流程可以包括：位置更新(LU)和GMM RAU(路由更新)的流程。
所述基于所述检测结果判断所述CSFB是否回落成功，包括：
当检测结果为所述UE不能在所述指定时长内向GSM网络的第一小区发起接入请求时，确定所述CSFB回落失败；
或者，
当检测结果为所述UE返回LTE网络时，确定所述CSFB回落失败。
所述基于所述检测结果判断所述CSFB是否回落成功，还包括：
当检测结果为所述UE能在所述指定时长内向GSM网络的第一小区发起接入请求时，若所述UE建立电路域CS通话，则确定所述CSFB回落成功。
本发明实施例提供的方法，能够在发起主叫CSFB过程中，4G信号服务不可用的场景下，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，以判断所述CSFB是否回落成功，从而验证了该场景下的CSFB优化方案的可行性以及稳定性，这样，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UE在GSM网络下的语音通话状态，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，包括频分双工(FDD)-LTE小区、WCDMA小区、GSM小区；其中，LTE SIB中配置WCDMA 1为邻区小区信息，配置GSM小区为邻区小区，在WCDMA SIB18中配置LTE邻区小区信息。
本应用实施例提供了一种CSFB异常场景：手机侧在发起主叫CSFB过程中，4G信号服务不可用，验证手机侧通话优化方案的有效性和合理性。
首先网络侧针对UE进行配置，将GSM网络的小区为相邻小区；
具体的：仿真网络构造一个网络环境，包括TDD-LTE/TDSCDMA/GSM小区，其中LTE SIB中配置GSM为邻区小区信息。在GSM SI中配置LTE 邻区小区信息。
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：
可以预先执行以下处理，触发UE注册到LTE小区上，并RRC重定向RRC Redirection到GSM网络上，让UE在GSM小区上完成LU和GMM RAU的流程，然后返回LTE小区；
步骤201：UE返回LTE小区之后，在LTE附着请求接收Attach Accept里面下发给UE，指定语音方案为CSFB；
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UE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202：UE触发MO CSFB流程，在LTE网络发送extended service request，网络模拟4G下异常服务不可用情况：CS domain temporarily not available；
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。
步骤203：检测UE是否能自动在指定的timer之内对邻区GSM频点发起power scan发起接入请求Channel Request，并携带正确的接入请求原因值；若能，则执行步骤204；否则，优化方案失败。
步骤204：网络侧开始在GSM层的CSFB后继流程，检查手机能成功建立起CS语音通话，说明方案优化成功。
其中，判断方案优化失败，可以包括以下两种原因，原因1、UE不能在指定timer之内发起GSM 0接入请求Channel Request，判定优化方案失败,FAIL；
原因2、检测到UE返回LTE，并不发起CSFB流程，判定优化方案失败，FAIL。
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4所示，所述装置包括：
控制单元41，当用户设备UE侧触发主叫CSFB处理、且网络环境为第四代移动通信4G服务异常时，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，得到检测结果；
判断单元42，基于所述检测结果判断所述CSFB是否回落成功。
这里，本实施例所对应的执行主体可以为能够具备网络环境模拟功能的装置，也就是说，通过具备前述功能的装置模拟能够模拟至少一种网络的环境，比如，可以包括有GSM、CDMA、TSCDMA、WCDMA、LTE、5G、NR中的至少一种网络环境。
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UE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UE在GSM网络下的语音通话状态。
进一步地，本实施例执行步骤101之前，可以预先配置配置所述UE处于LTE网络的第二小区中、并配置所述LTE网络的小区的相邻小区为GSM网络的第一小区。具体的配置信息中可以包括有各个小区的网络以及频点、带宽等信息，这里不进行赘述；配置信息的下发方式，可以通过SI信息，具体的放置在那个SIB中，可以根据与UE之间的预设策略来确定，比如，可以确定为方式正在SIB8中，还可以有其他的配置情况，这里不进行穷举。
前述网络环境为第四代移动通信4G服务异常，可以通过本实施例所述 的装置来模拟得到所述UE处于异常的网络环境中，具体的模拟方式这里不做限定。
本实施例中，若网络模拟4G下异常服务不可用情况，那么可以向发起接入4G的UE发送相关的拒绝信息，比如，可以为：CS domain temporarily not available。
并且控制单元41，触发所述UE注册到LTE网络的第二小区中，并进行重定向至GSM网络；
当所述UE在所述GSM网络完成预设流程，控制所述UE返回至所述LTE网络的第二小区。
其中，所述重定向可以为RRC重定向。
所述预设流程可以包括：位置更新(LU)和GMM RAU(路由更新)的流程。
所述判断单元42，当检测结果为所述UE不能在所述指定时长内向GSM网络的第一小区发起接入请求时，确定所述CSFB回落失败；
或者，
当检测结果为所述UE返回LTE网络时，确定所述CSFB回落失败。
所述判断单元42，当检测结果为所述UE能在所述指定时长内向GSM网络的第一小区发起接入请求时，若所述UE建立电路域CS通话，则确定所述CSFB回落成功。
本发明实施例提供的方法，能够在发起主叫CSFB过程中，4G信号服务不可用的场景下，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，以判断所述CSFB是否回落成功，从而验证了该场景下的CSFB优化方案的可行性以及稳定性，这样，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UE在GSM网络下的语音通话 状态，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。
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，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50包括：处理器51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52，
其中，所述处理器51配置为运行所述计算机程序时，执行前述实施例中的方法步骤。
当然，实际应用时，如图5所示，该装置50中的各个组件通过总线系统53耦合在一起。可理解，总线系统53用于实现这些组件之间的连接通信。总线系统53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5中将各种总线都标为总线系统53。
在示例性实施例中，本发明实施例还提供了一种计算机可读存储介质，例如包括计算机程序的存储器52，上述计算机程序可由CSFB的回落结果检测装置50的处理器51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技术方案，能够在发起主叫CSFB过程中，4G信号服务不可用的场景下，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，以判断所述CSFB是否回落成功，从而验证了该场景下的CSFB优化方案的可行性以及稳定性，这样，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 (14)

  1. 一种电路域回落CSFB的回落结果检测方法，所述方法包括：
    当用户设备UE侧触发主叫CSFB处理、且网络环境为第四代移动通信4G服务异常时，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，得到检测结果；
    基于所述检测结果判断所述CSFB是否回落成功。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    配置所述UE处于LTE网络的第二小区中、并配置所述LTE网络的小区的相邻小区为GSM网络的第一小区。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    触发所述UE注册到LTE网络的第二小区中，并进行重定向至GSM网络；
    当所述UE在所述GSM网络完成预设流程，控制所述UE返回至所述LTE网络的第二小区。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述基于所述检测结果判断所述CSFB是否回落成功，包括：
    当检测结果为所述UE不能在所述指定时长内向GSM网络的第一小区发起接入请求时，确定所述CSFB回落失败。
  5. 根据权利要求1-3任一项所述的方法，其特征在于，所述基于所述检测结果判断所述CSFB是否回落成功，包括：
    当检测结果为所述UE返回LTE网络时，确定所述CSFB回落失败。
  6. 根据权利要求1-3任一项所述的方法，其特征在于，所述基于所述检测结果判断所述CSFB是否回落成功，还包括：
    当检测结果为所述UE能在所述指定时长内向GSM网络的第一小区发起接入请求时，若所述UE建立电路域CS通话，则确定所述CSFB回 落成功。
  7. 一种CSFB的回落结果检测装置，所述装置包括：
    控制单元，当用户设备UE侧触发主叫CSFB处理、且网络环境为第四代移动通信4G服务异常时，检测所述UE是否能够在指定时长内向GSM网络的第一小区发起接入请求，得到检测结果；
    判断单元，基于所述检测结果判断所述CSFB是否回落成功。
  8. 根据权利要求7所述的装置，其特征在于，所述控制单元，配置所述UE处于LTE网络的第二小区中、并配置所述LTE网络的小区的相邻小区为GSM网络的第一小区。
  9. 根据权利要求8所述的装置，其特征在于，所述控制单元，触发所述UE注册到LTE网络的第二小区中，并进行重定向至GSM网络；当所述UE在所述GSM网络完成预设流程，控制所述UE返回至所述LTE网络的第二小区。
  10. 根据权利要求7-9任一项所述的装置，其特征在于，所述判断单元，当检测结果为所述UE不能在所述指定时长内向GSM网络的第一小区发起接入请求时，确定所述CSFB回落失败。
  11. 根据权利要求7-9任一项所述的装置，其特征在于，所述判断单元，当检测结果为所述UE返回LTE网络时，确定所述CSFB回落失败。
  12. 根据权利要求7-9任一项所述的装置，其特征在于，所述判断单元，当检测结果为所述UE能在所述指定时长内向GSM网络的第一小区发起接入请求时，若所述UE建立电路域CS通话，则确定所述CSFB回落成功。
  13. [根据细则91更正 19.10.2017]
    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。
  14. [根据细则91更正 19.10.2017]　
    一种计算机可读存储介质，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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