WO2018171153A1 - Procédé et dispositif de gestion d'apparition d'anomalie pendant une opération de repli à commutation de circuits, et équipement utilisateur - Google Patents

Procédé et dispositif de gestion d'apparition d'anomalie pendant une opération de repli à commutation de circuits, et équipement utilisateur Download PDF

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Publication number
WO2018171153A1
WO2018171153A1 PCT/CN2017/103363 CN2017103363W WO2018171153A1 WO 2018171153 A1 WO2018171153 A1 WO 2018171153A1 CN 2017103363 W CN2017103363 W CN 2017103363W WO 2018171153 A1 WO2018171153 A1 WO 2018171153A1
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Prior art keywords
cell
circuit domain
rat
call
target cell
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PCT/CN2017/103363
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English (en)
Chinese (zh)
Inventor
王旭康
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广东欧珀移动通信有限公司
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Publication of WO2018171153A1 publication Critical patent/WO2018171153A1/fr

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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
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a circuit domain fallback exception processing method, apparatus, and user equipment.
  • the Circuit Switched Fallback is a technology for providing voice services to the user equipment when the user equipment is attached to the Long Term Evolution (LTE) network.
  • the circuit domain fallback is mainly used for the LTE network.
  • the user equipment in the middle can initiate a call and receive the call, and can correctly process the packet switching (PS) PS service that the terminal is performing in the LTE network.
  • PS packet switching
  • the called user equipment For the called user equipment (UE), it is necessary to redirect from the LTE cell to the Global System for Mobile Communication (GSM) third-generation partnership program (3rd Generation). Under the Partnership Project, 3GPP), the call can be connected. Specifically, when redirecting, the called UE needs to perform measurement to generate a measurement report, so that the base station determines the cell to which the cell is redirected based on the measurement report.
  • GSM Global System for Mobile Communication
  • the object of the present invention is to solve at least one of the above technical problems to some extent.
  • the present invention provides a circuit domain fallback exception processing method, which solves the technical problem that the called UE cannot fall back to the CS domain to perform voice service in the case where an abnormality occurs in the prior art.
  • the invention provides a circuit domain fallback exception processing device.
  • the invention proposes a UE.
  • the present invention proposes another UE.
  • the present invention provides a computer program product.
  • the present invention provides a computer readable storage medium.
  • the first aspect of the present invention provides a circuit domain fallback exception processing method, where the exception processing is performed by a called UE, and includes the following steps:
  • circuit domain fallback a network anomaly occurs, wherein the circuit domain fallback procedure is used to redirect from the registered first radio access technology RAT cell to the second RAT cell to perform the call;
  • the circuit domain fallback exception processing method of the embodiment of the present invention when the network abnormality occurs through the circuit domain fallback process, in order to enable the called UE to be redirected from the registered first radio access technology RAT cell to the second RAT cell connection
  • the UE searches for the target cell in each second RAT cell according to the call quality, and then performs a registration process in the target cell, thereby performing the call, which solves the problem in the prior art that if a network abnormality occurs in the circuit domain fallback process, The technical issue of making a call.
  • the second aspect of the present invention provides a circuit domain fallback exception processing apparatus, where the exception processing is applied to a called UE, including:
  • a detecting module configured to cause a network abnormality during a circuit domain fallback process, wherein the circuit domain fallback process is used to redirect from the registered first radio access technology RAT cell to the second RAT cell to perform the call;
  • a searching module configured to search for a target cell in each second RAT cell according to call quality
  • a calling module configured to perform a registration process on the target cell to perform the call in the target cell.
  • the circuit domain fallback exception processing apparatus of the embodiment of the present invention when the network abnormality occurs in the circuit domain fallback process, in order to enable the called UE to be redirected from the registered first radio access technology RAT cell to the second RAT cell connection In the call, the UE searches for the target cell in each second RAT cell according to the call quality, and then performs a registration process in the target cell, thereby performing the call, which solves the problem in the prior art that if a network abnormality occurs in the circuit domain fallback process, The technical issue of making a call.
  • a third aspect of the present invention provides a UE, including the circuit domain fallback exception processing apparatus according to the second aspect of the present invention.
  • the UE When the UE in the embodiment of the present invention experiences a network abnormality through the circuit domain fallback process, in order to enable the called UE to redirect from the registered first radio access technology RAT cell to the second RAT cell to connect the call, the UE is configured according to the UE.
  • the call quality is searched for in the second RAT cell, and the registration process is performed in the target cell, so that the call is performed, and the technical problem that the call cannot be made if the network abnormality occurs in the circuit domain fallback process in the prior art is solved. .
  • a fourth aspect of the present invention proposes another UE comprising one or more of the following components: a housing and a processor, a memory located in the housing, wherein the processor reads the memory by reading the memory Executable code Running a program corresponding to the executable program code for performing the following steps:
  • circuit domain fallback a network anomaly occurs, wherein the circuit domain fallback procedure is used to redirect from the registered first radio access technology RAT cell to the second RAT cell to perform the call;
  • the UE When the UE in the embodiment of the present invention experiences a network abnormality through the circuit domain fallback process, in order to enable the called UE to redirect from the registered first radio access technology RAT cell to the second RAT cell to connect the call, the UE is configured according to the UE.
  • the call quality is searched for in the second RAT cell, and the registration process is performed in the target cell, so that the call is performed, and the technical problem that the call cannot be made if the network abnormality occurs in the circuit domain fallback process in the prior art is solved. .
  • the embodiment of the fifth aspect of the present invention further provides a computer program product.
  • the instructions in the computer program product are executed by the processor, the circuit domain fallback exception processing method according to the first aspect embodiment is implemented.
  • a sixth aspect of the present invention further provides a computer readable storage medium having stored thereon a computer program, wherein when the instructions in the storage medium are executed by a processor of the user equipment, the circuit as described in the first aspect embodiment is implemented Domain fallback exception handling method.
  • FIG. 1 is a flow chart of a circuit domain fallback exception processing method according to an embodiment of the present invention
  • FIG. 2 is a signaling interaction diagram of a circuit domain fallback exception processing method according to another embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a circuit domain fallback exception processing apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another circuit domain fallback exception processing apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.
  • Wireless communication networks are widely deployed to provide things such as voice, video, packet data, messaging, broadcasts, and the like.
  • Various communication content The UE may be located within the coverage of multiple wireless networks, which may support different communication services, and may select an appropriate wireless network to serve the UE based on one or more criteria.
  • the circuit domain fallback is a technology for providing a voice service to a user equipment when the user equipment is attached to the LTE network.
  • the circuit domain fallback exception processing method, apparatus, and user equipment according to the embodiment of the present invention are described below with reference to the accompanying drawings.
  • CDMA Code Division Multiple Access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier FDMA
  • a CDMA network may implement a radio access technology (RAT) such as Universal Terrestrial Radio Access (UTRA), cdma2000, or the like.
  • RAT radio access technology
  • UTRA Universal Terrestrial Radio Access
  • WCDMA Wideband CDMA
  • CDMA 2000 covers the IS-2000, IS-95, and IS-856 standards.
  • IS-2000 is also known as 1x wireless transmission technology (1xRTT), CDMA2000 1X, and the like.
  • a TDMA network may implement a RAT such as Global System for Mobile Communications (GSM), Enhanced Data Rate GSM Evolution (EDGE), or GSM/EDGE Radio Access Network (GERAN).
  • the OFDMA network can implement such as Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM.RTM Such as RAT.
  • E-UTRA Evolved UTRA
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDM.RTM
  • UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS).
  • 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are new releases of UMTS that use E-UTRA, which employs OFDMA on the downlink and SC-FDMA on the uplink.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • Cdma2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described herein may be used in the wireless networks and RATs referred to above as well as other wireless networks and RATs.
  • FIG. 1 is a flowchart of a circuit domain fallback exception processing method according to an embodiment of the present invention.
  • the method provided by this embodiment may be performed by a called UE.
  • the UE is originally registered in the first RAT cell, and in order to make a call, it needs to fall back to the CS domain and register in the second RAT cell.
  • the first RAT includes Long Term Evolution (LTE).
  • the second RAT includes at least one of code division multiple access CDMA, global mobile system GSM, and universal mobile telecommunications system UMTS.
  • a UE may be stationary or mobile, and may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, and the like.
  • the UE may be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless telephone, a wireless local loop (WLL) station, and the like.
  • PDA personal digital assistant
  • WLL wireless local loop
  • the method includes:
  • step 101 during the circuit domain fallback, a network abnormality occurs.
  • the circuit domain fallback procedure is used to redirect from the registered first RAT cell to the second RAT cell to perform the call.
  • the UE receives the Radio Resource Control (RRC) connection release message, and the RRC connection release message does not include the radio resource configuration information, for example, the frequency point is not specified.
  • RRC Radio Resource Control
  • the wireless configuration information should be specified.
  • the wireless configuration information is not included in the received RRC connection release message, the configuration abnormality occurs, causing the attempted call to fail.
  • the UE will return to the first RAT cell.
  • the UE actively searches for the target cell and then registers with the target cell when an abnormality occurs, thereby connecting the call. For specific implementation, refer to the related description of the subsequent steps.
  • Step 102 Search for a target cell in each second RAT cell according to the call quality.
  • the required target cell may be selected according to the call quality.
  • the call quality of the target cell should be optimal or acceptable in each of the second RAT cells.
  • the UE queries, in each second RAT cell, a cell whose location area identifier LAI is equal to the tracking area identifier TAI of the first RAT cell. If the cell with the TAI equal to the TAI of the first RAT cell is queried, the queried cell is used as the target cell.
  • each second RAT cell recorded in the frequency point database may be first obtained, and then, according to the description of the frequency point database, the cell with the TAI equal to the TAI of the first RAT cell is queried.
  • the frequency point database is generated based on the second RAT cell that has successfully performed the call.
  • the second RAT cell with the strongest search signal strength is used as the target cell.
  • this step when searching for a target cell, the following steps may be performed:
  • the UE looks up the second RAT cell whose LAI is equal to the TAI of the first RAT cell from the frequency point database. Since the call is continued in such a cell, the quality of the call can be guaranteed, and the registration is initiated on the second RAT cell that is queried this time.
  • the second RAT cell with the LAI equal to the TAI of the first RAT cell is not queried in the frequency point database, the cell with the strongest signal quality is searched in the frequency point database as the target cell.
  • the UE may initiate a search for the second RAT cell with the LAI equal to the TAI of the first RAT cell and having the best signal strength as the target cell.
  • the target cell that is successful in the call will be recorded and added to the frequency point database, so that subsequent registration is initiated on the target cell to improve the call completion rate.
  • Step 103 Perform a registration process in the target cell to make a call.
  • a paging response message is sent to the network side, so that the registration process of the target cell is performed to establish a CS connection. Further, based on the connection, a call is made.
  • the UE when a network abnormality occurs through the circuit domain fallback process, in order to enable the called UE to redirect from the registered first radio access technology RAT cell to the second RAT cell to connect the call, the UE according to the call quality Searching for the target cell in each of the second RAT cells, and performing the registration process in the target cell, thereby performing the call, and solving the technical problem that the call cannot be made if the network abnormality occurs in the circuit domain fallback process in the prior art.
  • circuit domain fallback exception processing method will be described in detail below:
  • FIG. 2 is a signaling interaction diagram of a circuit domain fallback exception processing method according to another embodiment of the present invention. As shown in FIG. 2, the method illustrates a circuitized UE and a network side device during a circuit domain fallback exception processing. Signaling interaction between.
  • the network side device involved in this embodiment includes: an evolved mobile base station (Evolved Node B, eNodeB), a service support system (BSS), and a radio network subsystem (RNS-Radio Network Subsystem). ), Mobility Management Entity (MME) and Mobile Switching Center (MSC).
  • Evolved Node B evolved Node B
  • BSS service support system
  • RNS-Radio Network Subsystem radio network subsystem
  • MME Mobility Management Entity
  • MSC Mobile Switching Center
  • the UE that initiates the call is hereinafter referred to as the calling UE
  • the called UE is hereinafter referred to as the called UE, as shown in FIG. 2, including :
  • Step 201 The called UE is attached to the LTE, and the network side of the LTE receives the paging initiated by the calling UE.
  • the called UE is generally in an LTE network, and performs related processes such as attachment and location area update. After the calling UE initiates the paging, the called UE is still in the LTE network. Since the LTE network cannot perform the voice service, it needs to fall back from the PS domain to the CS domain. That is, the circuit domain needs to be dropped back to the called UE.
  • Step 202 The MSC sends a paging request to the MME.
  • the MSC of the called UE receives the IAM incoming message. Further, in order to notify the MME of the called UE, the called UE has been called to perform information of the circuit domain loop, and the MSC of the called UE sends a paging request to the MME of the called UE according to the MME information.
  • the paging request includes call related information such as a calling number and a location area information.
  • step 203 the MME sends a CS service advertisement and a paging request to the called UE.
  • the MME sends a CS service advertisement and a paging request to the called UE by using the eNodeB, where the paging request message includes an identifier of the CS domain, to indicate that the called UE needs to perform circuit domain fallback. Only after the called UE is built to complete the circuit domain fallback can the call be established to implement the voice service.
  • step 204 the MME returns a service request to the MSC.
  • the MME directly returns a service request message to the MSC, and does not wait for the response of the called UE.
  • Step 205 After the called UE receives the CS service advertisement and the paging request, the called UE returns a Network Attached Storage (NAS) extended service request to the MME, and starts a 10s timer (T3417_EXT).
  • NAS Network Attached Storage
  • the called UE After the called UE receives the CS service advertisement and the paging request, in response to the paging request, the called UE establishes an RRC connection by sending a NAS extended service request message.
  • Step 206 The MME sends an S1-AP UE context modification request with a CS fallback indicator to the eNodeB, and starts a 2s timer.
  • the S1-AP UE context modification request with the CS fallback indicator sent by the MME to the eNodeB is used to notify the eNodeB that the called UE is performing circuit domain fallback, and initiates a handover or redirection process according to the configuration of the network.
  • Step 207 the eNodeB determines a process of starting measurement by the UE and generating a measurement report after starting the process of performing measurement-based redirection.
  • the eNodeB requests the called UE to start the cell measurement of the different system, and after the measurement is completed, obtains the measurement report reported by the called UE.
  • Step 208 In response to the S1-AP UE context modification request, the eNodeB sends an S1-AP UE context modification response to the MME.
  • Step 209 In an abnormal situation, when the 2s timer reaches the timing 2s, the measurement is not completed, and the MME sends an RRC release message that does not include the radio resource configuration information to the eNodeB.
  • the RRC release message should include radio resource configuration information.
  • the UE can access the target cell according to the radio resource configuration information and enter the CS domain.
  • the MME considers that the connection process has not progressed, and the MME sends an RRC release message that does not include the radio resource configuration information to the eNodeB.
  • Step 210 The eNodeB sends the RRC release message that does not include radio resource configuration information to the called UE.
  • the UE when the UE receives the RRC release message that does not include the radio resource configuration information, the UE may not be able to access the target cell according to the configuration information, that is, a configuration exception occurs.
  • the called UE returns to the PS domain, causing the call to fail.
  • the UE starts to perform the process of actively searching for the target cell, which improves the probability of success.
  • Step 211 The called UE searches for a target cell according to the call quality, and registers with the target cell.
  • the required target cell may be selected according to the call quality.
  • the call quality of the target cell should be optimal or acceptable in each of the second RAT cells.
  • Step 212 After the called UE registers with the target cell, the called UE returns a paging response message to the MSC.
  • the called UE Along with the establishment of the air interface connection, the called UE returns a paging response message to the MSC through the BSS/RNS. At the page The message should carry the LAI of the target cell.
  • Step 213 After receiving the paging response message of the called UE, the MSC begins to perform a process of establishing a CS domain connection, and then connects the foregoing call based on the CS domain connection.
  • the MSC can start to perform the establishment of the CS after receiving the paging response message of the UE.
  • the process of domain connection which in turn connects the aforementioned call based on the CS domain connection.
  • the UE when a network abnormality occurs through the circuit domain fallback process, in order to enable the called UE to redirect from the registered first radio access technology RAT cell to the second RAT cell to connect the call, the UE according to the call quality Searching for the target cell in each of the second RAT cells, and performing the registration process in the target cell, thereby performing the call, and solving the technical problem that the call cannot be made if the network abnormality occurs in the circuit domain fallback process in the prior art.
  • FIG. 3 is a schematic structural diagram of a circuit domain fallback exception processing apparatus according to an embodiment of the present invention. As shown in FIG. : detection module 31, search module 32 and call module 33.
  • the detecting module 31 is configured to cause a network abnormality during the circuit domain fallback.
  • the circuit domain fallback procedure is used to redirect from the registered first radio access technology RAT cell to the second RAT cell for the call.
  • the network abnormality herein includes: receiving an RRC connection release message during the circuit domain fallback process, where the RRC connection release message does not include radio resource configuration information.
  • the searching module 32 is configured to search for a target cell in each second RAT cell according to the call quality.
  • the calling module 33 is configured to perform a registration process on the target cell to perform the call in the target cell.
  • the calling module 33 is specifically configured to: when the target cell is searched, send a paging response message to the network side; perform a registration process of the target cell to establish a CS connection; Call the call.
  • the first RAT includes Long Term Evolution (LTE), and the second RAT includes at least one of Code Division Multiple Access (CDMA), Global System for Mobile System (GSM), and Universal Mobile Telecommunications System (UMTS).
  • LTE Long Term Evolution
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile System
  • UMTS Universal Mobile Telecommunications System
  • circuit domain fallback exception processing method is also applicable to the circuit domain fallback exception processing apparatus of the embodiment of the present invention, and the implementation principle thereof is similar, and details are not described herein again.
  • the circuit domain fallback exception processing apparatus of the embodiment of the present invention when a network abnormality occurs in the circuit domain fallback process, is configured to enable the called UE to be redirected from the registered first radio access technology RAT cell to the first
  • the second RAT cell connects the call, and the UE searches for the target cell in each second RAT cell according to the call quality, and then performs a registration process in the target cell, thereby performing the call, and solving the prior art, if the circuit domain fallback process occurs If the network is abnormal, the technical problem of the call cannot be made.
  • the search module 32 includes a query unit 321 and a first determining unit 322.
  • the querying unit 321 is configured to query, in each second RAT cell, a cell in which the location area identifier LAI is equal to the tracking area identifier TAI of the first RAT cell.
  • the querying unit 321 is specifically configured to: acquire each second RAT cell recorded in the frequency point database, where the frequency point database is generated according to the second RAT cell that has successfully performed the call; according to the frequency point database
  • the description is to query a cell in which the LAI is equal to the TAI of the first RAT cell.
  • the first determining unit 322 is configured to: if the LAI is equal to the TAI of the first RAT cell, the queried cell is used as the target cell.
  • the search module 32 further includes: a second determining unit 323.
  • the second determining unit 323 is configured to: if the LAI is not equal to the TAI of the first RAT cell, search for the second RAT cell with the strongest signal strength as the target cell.
  • circuit domain fallback exception processing method is also applicable to the circuit domain fallback exception processing apparatus of the embodiment of the present invention, and the implementation principle thereof is similar, and details are not described herein again.
  • the circuit domain fallback exception processing apparatus of the embodiment of the present invention when a network abnormality occurs in the circuit domain fallback process, is configured to enable the called UE to be redirected from the registered first radio access technology RAT cell to the first
  • the second RAT cell connects the call, and the UE searches for the target cell in each second RAT cell according to the call quality, and then performs a registration process in the target cell, thereby performing the call, and solving the prior art, if the circuit domain fallback process occurs If the network is abnormal, the technical problem of the call cannot be made.
  • the present invention also proposes a user equipment, which includes a circuit domain fallback exception processing apparatus.
  • the user equipment in the embodiment of the present invention when the network abnormality occurs in the circuit domain fallback process, is configured to enable the called UE to be redirected from the registered first radio access technology RAT cell to the second RAT cell connection.
  • the UE searches for a target cell in each second RAT cell according to the quality of the call, and then performs a registration process in the target cell to perform the call, which solves the problem in the prior art that if a network abnormality occurs in the circuit domain fallback process, Technical problem with not being able to make a call.
  • the present invention also proposes another user equipment, which may be stationary or mobile, and may also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, and the like.
  • the user equipment can be a cellular telephone, a personal digital assistant, a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless telephone, a wireless local loop station, and the like.
  • FIG. 5 is a schematic structural diagram of a user equipment according to another embodiment of the present invention. As shown in FIG. 5, the user equipment 1000 includes: a housing 1100 and a memory 1111, a processor 1112, and a communication interface located in the housing 1100. Port 1113.
  • the processor 1111 runs a program corresponding to the executable program code by reading the executable program code stored in the memory 1112 for performing the following steps:
  • circuit domain fallback a network anomaly occurs, wherein the circuit domain fallback procedure is used to redirect from the registered first radio access technology RAT cell to the second RAT cell to perform the call;
  • the user equipment in the embodiment of the present invention when the network abnormality occurs in the circuit domain fallback process, is configured to enable the called UE to be redirected from the registered first radio access technology RAT cell to the second RAT cell connection.
  • the UE searches for a target cell in each second RAT cell according to the quality of the call, and then performs a registration process in the target cell to perform the call, which solves the problem in the prior art that if a network abnormality occurs in the circuit domain fallback process, Technical problem with not being able to make a call.
  • the present invention also provides a computer program product, which implements a circuit domain fallback exception processing method as described in the foregoing method embodiments when instructions in the computer program product are executed by the processor.
  • the present invention further provides a computer readable storage medium having stored thereon a computer program that implements a circuit as described in the foregoing method embodiments when instructions in the storage medium are executed by a processor of the user device Domain fallback exception handling method.

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Abstract

L'invention concerne un procédé et un dispositif pour gérer une anomalie apparaissant pendant une opération de repli à commutation de circuits, et une unité équipement utilisateur. Lors de l'apparition d'une anomalie réseau pendant une opération de repli à commutation de circuits, une unité UE de réception d'appel recherche, parmi des secondes cellules RAT respectives, et selon la qualité d'un appel, une cellule cible de façon à être redirigée à partir d'une première cellule RAT enregistrée vers une seconde cellule RAT afin de continuer l'appel, de telle sorte qu'une procédure d'enregistrement peut être exécutée dans la cellule cible pour procéder à l'appel. La présente invention résout un problème technique de l'état de la technique lié à l'incapacité de réaliser un appel lors de l'apparition d'une anomalie réseau pendant une opération de repli à commutation de circuits.
PCT/CN2017/103363 2017-03-20 2017-09-26 Procédé et dispositif de gestion d'apparition d'anomalie pendant une opération de repli à commutation de circuits, et équipement utilisateur WO2018171153A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107040967A (zh) * 2017-03-20 2017-08-11 广东欧珀移动通信有限公司 电路域回落异常处理方法、装置和用户设备
CN108235826B (zh) * 2017-09-30 2021-02-19 深圳市欢太科技有限公司 一种csfb的回落结果检测方法及装置、计算机存储介质
WO2019061410A1 (fr) * 2017-09-30 2019-04-04 深圳市云中飞网络科技有限公司 Procédé et dispositif de détection de fréquence anormal, et support de stockage informatique
WO2019061453A1 (fr) * 2017-09-30 2019-04-04 深圳市云中飞网络科技有限公司 Dispositif et procédé de détection de résultat de reprise de csfb, et support de stockage informatique
CN107786971A (zh) * 2017-11-07 2018-03-09 奇酷互联网络科技（深圳）有限公司 呼叫异常的处理方法、装置及移动终端
WO2019090649A1 (fr) * 2017-11-09 2019-05-16 Oppo广东移动通信有限公司 Procédé, dispositif, support lisible par ordinateur et système de contrôle d'accès
CN110876169A (zh) * 2018-09-03 2020-03-10 中国移动通信集团设计院有限公司 电路域回落异常后挽救通话的方法和装置
CN109803372A (zh) * 2018-12-21 2019-05-24 努比亚技术有限公司 一种来电呼叫方法、响应方法及终端、存储介质
CN110944344B (zh) * 2019-12-30 2023-05-26 瓴盛科技有限公司 提高终端被叫成功率的方法、移动终端和计算机可读介质
WO2021142820A1 (fr) * 2020-01-19 2021-07-22 Qualcomm Incorporated Recherche de service de nouvelle radio (nr) de cinquième génération (5g) basée sur un temporisateur
CN111970737B (zh) * 2020-08-17 2023-06-27 努比亚技术有限公司 一种呼叫控制方法、设备及计算机可读存储介质
CN115550858B (zh) * 2021-05-31 2024-09-27 Oppo广东移动通信有限公司 一种语音通话回落方法、装置及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104796952A (zh) * 2014-01-17 2015-07-22 联发科技股份有限公司 电路域回落的装置和方法
CN105208611A (zh) * 2015-04-17 2015-12-30 广东欧珀移动通信有限公司 一种减小电路域回落重定向接通延时的方法及装置
US9432310B1 (en) * 2014-03-11 2016-08-30 Sprint Communications Company L.P. Circuit switched fallback failure handling in wireless communication networks
CN107040967A (zh) * 2017-03-20 2017-08-11 广东欧珀移动通信有限公司 电路域回落异常处理方法、装置和用户设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104796952A (zh) * 2014-01-17 2015-07-22 联发科技股份有限公司 电路域回落的装置和方法
US9432310B1 (en) * 2014-03-11 2016-08-30 Sprint Communications Company L.P. Circuit switched fallback failure handling in wireless communication networks
CN105208611A (zh) * 2015-04-17 2015-12-30 广东欧珀移动通信有限公司 一种减小电路域回落重定向接通延时的方法及装置
CN107040967A (zh) * 2017-03-20 2017-08-11 广东欧珀移动通信有限公司 电路域回落异常处理方法、装置和用户设备

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