WO2019061496A1 - 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
WO2019061496A1
WO2019061496A1 PCT/CN2017/105007 CN2017105007W WO2019061496A1 WO 2019061496 A1 WO2019061496 A1 WO 2019061496A1 CN 2017105007 W CN2017105007 W CN 2017105007W WO 2019061496 A1 WO2019061496 A1 WO 2019061496A1
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Prior art keywords
cell
csfb
network
gsm
lte
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PCT/CN2017/105007
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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 CN201780002065.1A priority Critical patent/CN108235824B/zh
Priority to PCT/CN2017/105007 priority patent/WO2019061496A1/zh
Publication of WO2019061496A1 publication Critical patent/WO2019061496A1/zh

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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:
  • LTE Long Term Evolution
  • the voice call state of the UE is detected, and whether the CSFB is successfully dropped is determined based on the voice call state.
  • the method further includes:
  • the first cell configuring the GSM network and the second cell of the TDSCDMA network are neighboring cells.
  • the method further includes:
  • the UE After the UE completes a preset procedure in the first cell of the GSM network, the UE is controlled to return to the LTE cell.
  • the method further includes:
  • the indication information is carried in an attach accept message sent by the LTE base station to the UE.
  • the detecting whether the UE can initiate an access request to the second cell of the time division synchronous code division multiple access TDSCDMA network within a preset duration includes:
  • the UE Detecting whether the UE can initiate an access request to a frequency point corresponding to the second cell of the TDSCDMA network within a preset duration, and the access request carries a preset cause value.
  • the determining whether the CSFB is successfully dropped based on the voice call state includes:
  • An embodiment of the present invention provides a CSFB fallback result detecting apparatus, where the apparatus includes:
  • a control unit that controls the noise of the GSM network to exceed a preset threshold to cause the UE to be in a state in which the CSFB falls back to the first cell of the GSM network of the GSM system; wherein the UE is for the GSM network by the Global System for Mobile Communications Returning the first cell to the Long Term Evolution (LTE) network, and triggering CSFB processing of the UE;
  • LTE Long Term Evolution
  • the detecting unit detects whether the UE can initiate an access request to the second cell of the time division synchronous code division multiple access TDSCDMA network within a preset duration;
  • the determining unit if the UE can initiate an access request to the second cell of the TDSCDMA network within a preset duration, detecting a voice call state of the UE, and determining, according to the voice call state, whether the CSFB is successfully dropped.
  • control unit configures the first cell of the GSM network and the second cell of the TDSCDMA network as neighboring cells.
  • control unit triggers the UE to register in an LTE cell, and performs redirection to the first cell of the GSM network
  • the UE After the UE completes a preset procedure in the first cell of the GSM network, the UE is controlled to return to the LTE cell.
  • control unit sends indication information to the UE, to indicate, by using the indication information, that the UE voice solution is CSFB;
  • the indication information is carried in an attach accept message sent by the LTE base station to the UE.
  • the detecting unit detects whether the UE can be within a preset duration, An access request is initiated to a frequency point corresponding to the second cell of the TDSCDMA network, and the access request carries a preset cause value.
  • the determining unit determines that the CSFB falls back successfully when detecting that the UE establishes a voice call; otherwise, determines that the CSFB fallback fails.
  • 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 detects whether the UE can initiate an access request to the TDSCDMA cell within a preset duration in the scenario that the UE fails to access the GSM cell when the GSM network is too noisy.
  • the CSFB fallback result is determined, so that the feasibility and stability of the CSFB optimization scheme cannot be performed normally in the specified GSM cell network signal interference, so that the optimization scheme can be further improved to improve the probability of the CSFB process success, thereby improving the user. Call experience.
  • FIG. 1 is a schematic flowchart 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 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 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 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 Controlling that the noise of the GSM network exceeds a preset threshold, so that the UE is in a state in which the CSFB falls back to the first cell of the Global System for Mobile Communications (GSM) system failure; wherein the UE is for the GSM network by the Global System for Mobile Communications Returning the first cell to the Long Term Evolution (LTE) network, and triggering CSFB processing of the UE;
  • GSM Global System for Mobile Communications
  • Step 102 Detect whether the UE can initiate an access request to a second cell of a time division synchronous code division multiple access TDSCDMA network within a preset duration.
  • Step 103 If the UE can initiate an access request to the second cell of the TDSCDMA network within a preset time period, detect a voice call state of the UE, and determine, according to the voice call state, whether the CSFB is successfully dropped.
  • 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 first cell of the GSM network and the second cell of the TDSCDMA network may be pre-configured as neighboring cells.
  • the 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 in the SIB through the SI information. Set the strategy to determine, for example, it can be determined that the mode is in SIB8, and there are other configuration situations, which are not exhaustive here.
  • the foregoing terminal simulation CSFB fails to fall to the first cell in the GSM network of the global mobile communication system, and the possible triggering manner includes: controlling the noise of the GSM network to exceed a preset threshold.
  • the preset threshold is set according to the actual situation, and the manner of adjusting the noise may be various.
  • the signal source included in the device that can be provided in this embodiment generates noise, or other manners, the embodiment does not do limited.
  • the method may include:
  • the UE After the UE completes a preset procedure in the first cell of the GSM network, the UE is controlled to return to the LTE cell.
  • 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 method further includes:
  • the delivery mode can be as shown in FIG. 3 .
  • the detecting whether the UE can initiate an access request to the second cell of the time division synchronous code division multiple access TDSCDMA network within a preset duration includes:
  • the UE Detecting whether the UE can initiate an access request to a frequency point corresponding to the second cell of the TDSCDMA network within a preset duration, and the access request carries a preset cause value.
  • the preset cause value may be obtained by the network side and the UE in advance, for example, if the two parties can learn that the UE initiates an access request to the TESCDMA cell based on the preset cause value.
  • Determining whether the CSFB is successfully dropped based on the voice call state includes:
  • the CSFB falls back successfully; otherwise, the CSFB is determined to fail.
  • the method provided by the embodiment of the present invention can detect whether the UE can initiate an access request to the TDSCDMA cell within a preset time period in the scenario that the UE returns to the CSFB when the GSM network is too noisy and the UE fails to access the GSM cell.
  • the CSFB fallback result is determined, so that the feasibility and stability of the CSFB optimization scheme cannot be performed normally in the specified GSM cell network signal interference, so that the optimization scheme can be further improved to improve the probability of the CSFB process success, thereby improving the user. Call 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: the signal interference of the GSM cell network specified by the network side cannot be performed normally, and the mobile phone initiates a power scan according to the information of the previous neighboring area. Back to the TDSCDMA network to complete CSFB, verify the validity and rationality of the mobile phone side call optimization solution.
  • the network side configures the UE, and configures the cell of the GSM network and the cell of the TSDCDMA network as neighboring cells;
  • the simulation network constructs a network environment, including a TDD-LTE/TDSCDMA/GSM cell, where GSM and TDSCDMA are configured as neighbor cell information in the LTE SIB.
  • the LTE neighbor cell information is configured in the GSM SI.
  • 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 Trigger the UE to register to the LTE cell, and RRC redirect the RRC Redirection to the GSM network, and let the UE complete the LU and GMM RAU processes on the GSM cell, and then return 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 network side triggers the MT CSFB process, and the LTE network sends Paging signaling to the UE, so that the UE starts the CSFB process.
  • the frequency point information of the target GSM cell is included. Interest; for example, as shown in Figure 4;
  • 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.
  • 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 redirect command carries the frequency information of the specified WCDMA cell that is in error.
  • the base station sends an R8 redirection command (rrcConnectionRelease_R8(0)) to the UE, but the command carries the frequency information of the wrong target WCDMA cell. This abnormal scenario cannot direct the terminal to fall back to the target GSM cell.
  • Step 203 The network side analog device can simulate the GSM noise SNR is too high, and simulate CSFB falls back to the scenario where the GSM target cell access is rejected;
  • Step 204 Detect whether the UE can initiate a power scan initiation request RRCConnectionRequest to the neighboring TDSCDMA frequency within the specified timer according to the LTE SIB neighbor cell information, and carry the correct access request cause value; if yes, execute Step 205, otherwise, the CSFB fallback fails, and the UE cannot initiate a TDSCDMA access request RRCConnection Request within the specified timer, and determines that the optimization scheme fails;
  • Step 205 The network side starts the CSFB follow-up process at the TDS CDMA layer, and checks that the mobile phone can successfully establish a CS voice call, indicating that the scheme optimization succeeds; otherwise, the CSFB fallback fails, that is, the preset CSFB optimization scheme fails.
  • the embodiment of the present invention further provides a CSFB fallback result detecting device. As shown in FIG. 5, the device includes:
  • the control unit 51 controls the noise of the GSM network to exceed a preset threshold to enable the UE to be in a state in which the CSFB falls back to the first cell of the GSM network of the GSM system; wherein the UE is for the GSM by the Global System for Mobile Communications The first cell of the network returns to the Long Term Evolution (LTE) network, and the UE that triggers CSFB processing;
  • LTE Long Term Evolution
  • the detecting unit 52 detects whether the UE can initiate an access request to the second cell of the time division synchronous code division multiple access TDSCDMA network within a preset duration;
  • the determining unit 53 is configured to detect a voice call state of the UE, and determine, according to the voice call state, whether the CSFB is successfully dropped, if the UE can initiate an access request to the second cell of the TDSCDMA network within a preset duration. .
  • 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 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 UE 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. Based on this, in some embodiments, the voice call state of the UE under the GSM network in the simulated network environment is detected.
  • control unit 51 may pre-configure the first cell of the GSM network and the second cell of the TDSCDMA network as neighboring cells.
  • 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 terminal simulation CSFB fails to fall to the first cell in the GSM network of the global mobile communication system, and the possible triggering manner includes: controlling the noise of the GSM network to exceed a preset threshold.
  • the preset threshold is set according to the actual situation, and the manner of adjusting the noise may be various.
  • the signal source included in the device that can be provided in this embodiment generates noise, or other manners, the embodiment does not do limited.
  • the control unit 51 is configured to trigger the UE to register in the LTE cell, and perform redirection into the first cell of the GSM network.
  • the UE After the UE completes a preset procedure in the first cell of the GSM network, the UE is controlled to return to the LTE cell.
  • 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 method further includes:
  • the delivery mode can be as shown in FIG. 3 .
  • the detecting unit detects whether the UE can initiate an access request to a frequency point corresponding to the second cell of the TDSCDMA network within a preset duration, and the access request carries a preset cause value.
  • the preset cause value may be obtained by the network side and the UE in advance, for example, if the two parties can learn that the UE initiates an access request to the TESCDMA cell based on the preset cause value.
  • the determining unit determines that the CSFB falls back successfully when detecting that the UE establishes a voice call; otherwise, determines that the CSFB fallback fails.
  • the method provided by the embodiment of the present invention can detect whether the UE can initiate an access request to the TDSCDMA cell within a preset time period in the scenario that the UE returns to the CSFB when the GSM network is too noisy and the UE fails to access the GSM cell.
  • the CSFB fallback result is determined, so that the feasibility and stability of the CSFB optimization scheme cannot be performed normally in the specified GSM cell network signal interference, so that the optimization scheme can be further improved to improve the probability of the CSFB process success, thereby improving the user. Call 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.
  • the CSFB fallback detection device provided by the above embodiment is in progress. When the CSFB fallback result is detected, only the division of each of the above program modules is illustrated. In practical applications, the above processing allocation may be completed by different program modules as needed, 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 60 is provided.
  • a processor 61 and a memory 62 configured to store a computer program capable of running on a processor,
  • the processor 61 is configured to execute the method steps in the foregoing embodiments when the computer program is executed.
  • bus system 63 the various components of the device 60 are coupled together by a bus system 63.
  • bus system 63 is used to implement connection communication between these components.
  • the bus system 63 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus.
  • various buses are labeled as bus system 63 in FIG.
  • an embodiment of the present invention further provides a computer readable storage medium, such as a memory 62 including a computer program, which may be executed by processor 61 of CSFB's fallback result detecting device 60 to complete the foregoing Method described.
  • 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 (EEPROM) Memory, Flash memory, magnetic surface memory, optical disk, or 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 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 detects whether the UE can be preset when the terminal is in a state in which the CSFB falls back to the first cell in the GSM network of the global mobile communication system.
  • an access request is initiated to the second cell in the GSM network; if the UE can initiate an access request to the second cell in the GSM network within a preset duration, the detected voice call state is used to determine the location Whether the CSFB is successfully dropped; if the frequency information of the cell of the GSM network is configured on the network side, the terminal detects the voice call state in the GSM network during the CSFB process in the scenario where the frequency sweep of the designated cell fails, thereby finally determining The CSFB fallback result, in this way, in the subsequent CSFB process, the optimization scheme can be further improved to improve the probability of the CSFB process success, so as to improve the user's calling experience.

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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：控制GSM网络的噪音超过预设门限值，以使UE处于CSFB回落至全球移动通信系统GSM网络的第一小区失败的状态；其中，所述UE为针对由GSM网络的第一小区返回至长期演进LTE网络，且触发CSFB处理的UE；检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求；若所述UE能够在预设时长内，向TDSCDMA网络的第二小区发起接入请求，则检测所述UE的语音通话状态，基于所述语音通话状态判断所述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：
控制GSM网络的噪音超过预设门限值，以使UE处于CSFB回落至 全球移动通信系统GSM网络的第一小区失败的状态；其中，所述UE为针对由全球移动通信系统GSM网络的第一小区返回至长期演进LTE网络，且触发CSFB处理的UE；
检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求；
若所述UE能够在预设时长内，向TDSCDMA网络的第二小区发起接入请求，则检测所述UE的语音通话状态，基于所述语音通话状态判断所述CSFB是否回落成功。
上述方案中，所述方法还包括：
配置GSM网络的第一小区、以及TDSCDMA网络的第二小区为相邻小区。
上述方案中，所述方法还包括：
触发所述UE注册到LTE小区中，并进行重定向至GSM网络的第一小区中；
当所述UE在所述GSM网络的第一小区中完成预设流程后，控制所述UE返回至所述LTE小区。
上述方案中，所述方法还包括：
向所述UE发送指示信息，以通过所述指示信息指示所述UE语音方案为CSFB；
其中，所述指示信息携带在所述LTE基站向所述UE发送的附着接受消息中。
上述方案中，所述检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求，包括：
检测所述UE是否能够在预设时长内，向TDSCDMA网络的第二小区所对应的频点发起接入请求，且所述接入请求中携带有预设原因值。
上述方案中，所述基于所述语音通话状态判断所述CSFB是否回落成功，包括：
当检测到所述UE建立语音通话时，确定所述CSFB回落成功；否则，确定所述CSFB回落失败。
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，控制GSM网络的噪音超过预设门限值，以使UE处于CSFB回落至全球移动通信系统GSM网络的第一小区失败的状态；其中，所述UE为针对由全球移动通信系统GSM网络的第一小区返回至长期演进LTE网络，且触发CSFB处理的UE；
检测单元，检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求；
判断单元，若所述UE能够在预设时长内，向TDSCDMA网络的第二小区发起接入请求，则检测所述UE的语音通话状态，基于所述语音通话状态判断所述CSFB是否回落成功。
上述方案中，所述控制单元，配置GSM网络的第一小区、以及TDSCDMA网络的第二小区为相邻小区。
上述方案中，所述控制单元，触发所述UE注册到LTE小区中，并进行重定向至GSM网络的第一小区中；
当所述UE在所述GSM网络的第一小区中完成预设流程后，控制所述UE返回至所述LTE小区。
上述方案中，所述控制单元，向所述UE发送指示信息，以通过所述指示信息指示所述UE语音方案为CSFB；
其中，所述指示信息携带在所述LTE基站向所述UE发送的附着接受消息中。
上述方案中，所述检测单元，检测所述UE是否能够在预设时长内， 向TDSCDMA网络的第二小区所对应的频点发起接入请求，且所述接入请求中携带有预设原因值。
上述方案中，所述判断单元，当检测到所述UE建立语音通话时，确定所述CSFB回落成功；否则，确定所述CSFB回落失败。
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，检测到当GSM网络噪音过高导致UE接入GSM小区失败的情况下，返回CSFB的场景中，UE是否能够在预设时长内向TDSCDMA小区发起接入请求，最终确定出CSFB的回落结果，这样，能够得到在指定的GSM小区网络信号干扰无法正常进行业务CSFB优化方案的可行性以及稳定性，从而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；
图2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：控制GSM网络的噪音超过预设门限值，以使UE处于CSFB回落至全球移动通信系统GSM网络的第一小区失败的状态；其中，所述UE为针对由全球移动通信系统GSM网络的第一小区返回至长期演进LTE网络，且触发CSFB处理的UE；
步骤102：检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求；
步骤103：若所述UE能够在预设时长内，向TDSCDMA网络的第二小区发起接入请求，则检测所述UE的语音通话状态，基于所述语音通话状态判断所述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GSM网络的第一小区、以及TDSCDMA网络的第二小区为相邻小区。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。
前述终端模拟CSFB回落至全球移动通信系统GSM网络下的第一小区失败，可能存在的触发方式包括：控制GSM网络的噪音超过预设门限值。其中，预设门限值为根据实际情况进行设置，调整噪音的方式可以有多种，比如，通过本实施例能够提供的装置中包含的信号源发出噪音，或者其他方式，本实施例不做限定。
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小区中，并进行重定向至GSM网络的第一小区中；
当所述UE在所述GSM网络的第一小区中完成预设流程后，控制所述UE返回至所述LTE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。
所述控制所述UE返回至所述LTE小区之后，所述方法还包括：
向所述UE发送指示信息，以通过所述指示信息指示所述UE语音方案为CSFB；其中，所述指示信息携带在所述LTE基站向所述UE发送的附着接受消息中。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；其下发方式可以如图3所示。
所述检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求，包括：
检测所述UE是否能够在预设时长内，向TDSCDMA网络的第二小区所对应的频点发起接入请求，且所述接入请求中携带有预设原因值。
其中，所述预设原因值可以为网络侧与UE预先协商得到，比如，只要双方能够基于该预设原因值得知UE向TESCDMA小区发起接入请求即可。
所述基于所述语音通话状态判断所述CSFB是否回落成功，包括：
当检测到所述UE建立语音通话时，确定所述CSFB回落成功；否则，确定所述CSFB失败。
本发明实施例提供的方法，能够检测到当GSM网络噪音过高导致UE接入GSM小区失败的情况下，返回CSFB的场景中，UE是否能够在预设时长内向TDSCDMA小区发起接入请求，最终确定出CSFB的回落结果，这样，能够得到在指定的GSM小区网络信号干扰无法正常进行业务CSFB优化方案的可行性以及稳定性，从而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：网络侧指定的GSM小区网络信号干扰无法正常进行业务，手机根据之前邻区信息，发起power scan， 回落到TDSCDMA网络完成CSFB，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、以及TSDCDMA网络的小区配置为相邻小区；
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和TDSCDMA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：
步骤200：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：网络侧触发MT CSFB流程，LTE网络发送Paging信令给UE，使得UE开始CSFB流程；
在LTE_RRCConnectionRelease信令中，包括目标GSM小区的频点信 息；比如，如图4所示；
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。重定向命令中携带错误的指定WCDMA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，但是该命令携带错误的目标WCDMA小区的频点信息，这种异常场景无法指引终端回落至目标GSM小区。
步骤203：网络侧模拟装置可以模拟GSM噪音SNR过高情况，模拟 CSFB回落至GSM目标小区接入被拒绝的场景；
步骤204：检测UE是否能根据LTE SIB邻小区信息，在指定的timer之内对邻区TDSCDMA频点发起power scan发起接入请求RRCConnectionRequest，并携带正确的接入请求原因值；如果是，则执行步骤205，否则，说明CSFB回落失败，UE不能在指定timer之内发起TDSCDMA接入请求RRCConnection Request，判定优化方案失败；
步骤205：网络侧开始在TDSCDMA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；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5所示，所述装置包括：
控制单元51，控制GSM网络的噪音超过预设门限值，以使UE处于CSFB回落至全球移动通信系统GSM网络的第一小区失败的状态；其中，所述UE为针对由全球移动通信系统GSM网络的第一小区返回至长期演进LTE网络，且触发CSFB处理的UE；
检测单元52，检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求；
判断单元53，若所述UE能够在预设时长内，向TDSCDMA网络的第二小区发起接入请求，则检测所述UE的语音通话状态，基于所述语音通话状态判断所述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，控制单元51，可以预先配置GSM网络的第一小区、以及TDSCDMA网络的第二小区为相邻小区。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。
前述终端模拟CSFB回落至全球移动通信系统GSM网络下的第一小区失败，可能存在的触发方式包括：控制GSM网络的噪音超过预设门限值。其中，预设门限值为根据实际情况进行设置，调整噪音的方式可以有多种，比如，通过本实施例能够提供的装置中包含的信号源发出噪音，或者其他方式，本实施例不做限定。
控制单元51，触发所述UE注册到LTE小区中，并进行重定向至GSM网络的第一小区中；
当所述UE在所述GSM网络的第一小区中完成预设流程后，控制所述UE返回至所述LTE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。
所述控制所述UE返回至所述LTE小区之后，所述方法还包括：
向所述UE发送指示信息，以通过所述指示信息指示所述UE语音方案为CSFB；其中，所述指示信息携带在所述LTE基站向所述UE发送的附着接受消息中。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；其下发方式可以如图3所示。
所述检测单元，检测所述UE是否能够在预设时长内，向TDSCDMA网络的第二小区所对应的频点发起接入请求，且所述接入请求中携带有预设原因值。
其中，所述预设原因值可以为网络侧与UE预先协商得到，比如，只要双方能够基于该预设原因值得知UE向TESCDMA小区发起接入请求即可。
所述判断单元，当检测到所述UE建立语音通话时，确定所述CSFB回落成功；否则，确定所述CSFB回落失败。
本发明实施例提供的方法，能够检测到当GSM网络噪音过高导致UE接入GSM小区失败的情况下，返回CSFB的场景中，UE是否能够在预设时长内向TDSCDMA小区发起接入请求，最终确定出CSFB的回落结果，这样，能够得到在指定的GSM小区网络信号干扰无法正常进行业务CSFB优化方案的可行性以及稳定性，从而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6所示，所述装置60包括：处理器61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62，
其中，所述处理器61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6所示，该装置60中的各个组件通过总线系统63耦合在一起。可理解，总线系统63用于实现这些组件之间的连接通信。总线系统63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63。
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62，上述计算机程序可由CSFB的回落结果检测装置60的处理器61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，当终端处于CSFB回落至全球移动通信系统GSM网络下的第一小区失败的状态时，检测所述UE是否能够在预设 时长内，向GSM网络下的第二小区发起接入请求；若所述UE能够在预设时长内，向GSM网络下的第二小区发起接入请求，则利用检测的语音通话状态，判断所述CSFB是否回落成功；如此在网络侧漏配置GSM网络的小区的频点信息时，使得终端在指定小区扫频失败的场景下检测出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。

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：
    控制GSM网络的噪音超过预设门限值，以使UE处于CSFB回落至全球移动通信系统GSM网络的第一小区失败的状态；其中，所述UE为针对由全球移动通信系统GSM网络的第一小区返回至长期演进LTE网络，且触发CSFB处理的UE；
    检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求；
    若所述UE能够在预设时长内，向TDSCDMA网络的第二小区发起接入请求，则检测所述UE的语音通话状态，基于所述语音通话状态判断所述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GSM网络的第一小区、以及TDSCDMA网络的第二小区为相邻小区。
  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小区中，并进行重定向至GSM网络的第一小区中；
    当所述UE在所述GSM网络的第一小区中完成预设流程后，控制所述UE返回至所述LTE小区。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    向所述UE发送指示信息，以通过所述指示信息指示所述UE语音方案为CSFB；
    其中，所述指示信息携带在所述LTE基站向所述UE发送的附着接受消息中。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述检测所 述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求，包括：
    检测所述UE是否能够在预设时长内，向TDSCDMA网络的第二小区所对应的频点发起接入请求，且所述接入请求中携带有预设原因值。
  6. 根据权利要求1-4任一项所述的方法，其特征在于，所述基于所述语音通话状态判断所述CSFB是否回落成功，包括：
    当检测到所述UE建立语音通话时，确定所述CSFB回落成功；否则，确定所述CSFB回落失败。
  7. 一种CSFB的回落结果检测装置，所述装置包括：
    控制单元，控制GSM网络的噪音超过预设门限值，以使UE处于CSFB回落至全球移动通信系统GSM网络的第一小区失败的状态；其中，所述UE为针对由全球移动通信系统GSM网络的第一小区返回至长期演进LTE网络，且触发CSFB处理的UE；
    检测单元，检测所述UE是否能够在预设时长内，向时分同步码分多址TDSCDMA网络的第二小区发起接入请求；
    判断单元，若所述UE能够在预设时长内，向TDSCDMA网络的第二小区发起接入请求，则检测所述UE的语音通话状态，基于所述语音通话状态判断所述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GSM网络的第一小区、以及TDSCDMA网络的第二小区为相邻小区。
  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小区中，并进行重定向至GSM网络的第一小区中；
    当所述UE在所述GSM网络的第一小区中完成预设流程后，控制所述UE返回至所述LTE小区。
  10. 根据权利要求9所述的装置，其特征在于，所述控制单元，向 所述UE发送指示信息，以通过所述指示信息指示所述UE语音方案为CSFB；
    其中，所述指示信息携带在所述LTE基站向所述UE发送的附着接受消息中。
  11. 根据权利要求7-10任一项所述的装置，其特征在于，所述检测单元，检测所述UE是否能够在预设时长内，向TDSCDMA网络的第二小区所对应的频点发起接入请求，且所述接入请求中携带有预设原因值。
  12. 根据权利要求7-10任一项所述的装置，其特征在于，所述判断单元，当检测到所述UE建立语音通话时，确定所述CSFB回落成功；否则，确定所述CSFB回落失败。
  13. 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. 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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