CN109451549A - Voice backing method, device and terminal device - Google Patents

Voice backing method, device and terminal device Download PDF

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Publication number
CN109451549A
CN109451549A CN201910003933.9A CN201910003933A CN109451549A CN 109451549 A CN109451549 A CN 109451549A CN 201910003933 A CN201910003933 A CN 201910003933A CN 109451549 A CN109451549 A CN 109451549A
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China
Prior art keywords
cells
voice
target cell
cell
call service
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CN201910003933.9A
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Chinese (zh)
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CN109451549B (en
Inventor
师瑜
严斌峰
周晶
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Priority to CN201910003933.9A priority Critical patent/CN109451549B/en
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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
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the present application discloses a kind of voice backing method, device and terminal device, this method comprises: receiving the system message from first community, wherein, the system message includes the frequency point information of voice sign and N number of second community, which is used to indicate network belonging to first community and does not support voice call service；According to the frequency point information of voice sign and N number of second community, N number of second community is measured；If detect voice call service, according to the measurement result for stating N number of second community, reselection request is sent to Target cell, and then guarantee independently to dispose in 5G SA, it neither supports VoNR, and does not support under the scene of EPS fallback, voice service is normally carried out, and then the reliability of voice service is provided, improve user speech experience.

Description

Voice backspacing method and device and terminal equipment
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a voice backspacing method, a voice backspacing device and terminal equipment.
Background
With the further acceleration of the 3GPP (the 3rd Generation Partner Project) 5G (5 f-Generation, fifth Generation mobile communication technology) standard, the voice solution of 5G terminals is more and more emphasized by the industry. In the prior art, in an independent networking mode, a scheme of EPS (Evolved packet system) fallback is generally adopted to solve the problem that a voice service falls back from a 5G core network to a 4G core network, so as to implement voice continuity.
Disclosure of Invention
The embodiment of the application provides a voice backspacing method, a voice backspacing device and terminal equipment.
In a first aspect, an embodiment of the present application provides a voice fallback method, where the method is applied to a terminal device, where the terminal device is camped in a first cell, and the method includes:
receiving a system message from the first cell, wherein the system message includes a voice indication identifier and frequency point information of N second cells, the system of the first cell is higher than that of the second cells, and the voice indication identifier is used for indicating that a network to which the first cell belongs does not support voice call service;
measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells;
and if the voice call service is detected, sending a reselection request to a target cell according to the measurement results of the N second cells, wherein the target cell is one of the N second cells, and the reselection request is used for requesting to access the target cell.
In an implementation manner of the first aspect, if the voice call service is detected, sending a reselection request to the target cell according to the measurement results of the N second cells includes:
if the voice call service is initiated, sending a reselection request to the target cell according to the measurement results of the N second cells;
or,
and if a paging message is received, sending a reselection request to the target cell according to the measurement results of the N second cells, wherein the paging message is used for indicating that other terminal equipment sends a voice call to the terminal equipment.
In another implementation manner of the first aspect, the measuring the N second cells includes:
and periodically measuring the network information of the N second cells according to a preset measurement period.
In another implementation manner of the first aspect, the network information of the second cell includes a network quality of the second cell.
In another implementation manner of the first aspect, the target cell is a second cell with the best network quality among the N second cells.
In another implementation manner of the first aspect, the N second cells are neighbor cells of the first cell.
In another implementation manner of the first aspect, if the voice call service is detected, sending a reselection request to the target cell according to the measurement results of the N second cells includes:
and if the voice call service is detected and the terminal equipment is detected to be in an idle state, sending a reselection request to the target cell according to the measurement results of the N second cells.
In another implementation manner of the first aspect, if the voice call service is detected, sending a reselection request to the target cell according to the measurement results of the N second cells includes:
if the voice call service is detected and the terminal equipment is detected to be in a connected state or a deactivated state, switching the terminal equipment to an idle state;
and determining the target cell according to the measurement results of the N second cells, and sending a reselection request to the target cell.
In a second aspect, an embodiment of the present application provides a voice fallback apparatus, where the apparatus is applied to a terminal device, where the terminal device is camped in a first cell, and the apparatus includes:
a receiving module, configured to receive a system message from the first cell, where the system message includes a voice indicator and frequency point information of N second cells, a standard of the first cell is higher than a standard of the second cells, and the voice indicator is used to indicate that a network to which the first cell belongs does not support a voice call service;
the processing module is used for measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells;
a sending module, configured to send, if the processing module detects a voice call service, a reselection request to a target cell according to the measurement results of the N second cells, where the target cell is one of the N second cells, and the reselection request is used to request access to the target cell.
In a possible implementation manner of the second aspect, if the voice call service is detected, sending a reselection request to the target cell according to the measurement results of the N second cells, includes:
the sending module is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if a voice call service is initiated;
or,
the sending module is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if a paging message is received, where the paging message is used to indicate that other terminal devices send voice calls to the terminal device.
In another possible implementation manner of the second aspect, the measuring the N second cells includes:
the processing module is specifically configured to periodically measure the network information of the N second cells according to a preset measurement period.
In another possible implementation manner of the second aspect, the network information of the second cell includes a network quality of the second cell.
In another possible implementation manner of the second aspect, the target cell is a second cell with the best network quality among the N second cells.
In another possible implementation manner of the second aspect, the N second cells are neighboring cells of the first cell.
In another possible implementation manner of the second aspect, the processing module is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if the processing module detects that the voice call service is detected and the terminal device is in an idle state.
In another possible implementation manner of the second aspect, the processing module is further configured to switch the terminal device to an idle state if a voice call service is detected and it is detected that the terminal device is in a connected state or a deactivated state;
the sending module is specifically configured to determine the target cell according to the measurement results of the N second cells, and send a reselection request to the target cell.
In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device resides in a first cell, and the terminal device includes:
a receiver, configured to receive a system message from the first cell, where the system message includes a voice indicator and frequency point information of N second cells, a standard of the first cell is higher than a standard of the second cells, and the voice indicator is used to indicate that a network to which the first cell belongs does not support a voice call service;
the processor is used for measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells;
and a transmitter, configured to send, if the processing module detects a voice call service, a reselection request to a target cell according to the measurement results of the N second cells, where the target cell is one of the N second cells, and the reselection request is used to request access to the target cell.
In a possible implementation manner of the third aspect, if the voice call service is detected, sending a reselection request to the target cell according to the measurement results of the N second cells, includes:
the transmitter is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if a voice call service is initiated;
or,
the transmitter is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if a paging message is received, where the paging message is used to indicate that other terminal devices send voice calls to the terminal device.
In another possible implementation manner of the third aspect, the measuring the N second cells includes:
the processor is specifically configured to periodically measure the network information of the N second cells according to a preset measurement period.
In another possible implementation manner of the third aspect, the network information of the second cell includes a network quality of the second cell.
In another possible implementation manner of the third aspect, the target cell is a second cell with the best network quality among the N second cells.
In another possible implementation manner of the third aspect, the N second cells are neighbor cells of the first cell.
In another possible implementation manner of the third aspect, the processor is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if the processing module detects that the voice call service is detected and the terminal device is in an idle state.
In another possible implementation manner of the third aspect, the processor is further configured to switch the terminal device to an idle state if a voice call service is detected and it is detected that the terminal device is in a connected state or a deactivated state;
the transmitter is specifically configured to determine the target cell according to the measurement results of the N second cells, and send a reselection request to the target cell.
In a fourth aspect, an embodiment of the present application provides a computer storage medium, in which a computer program is stored, and the computer program, when executed, implements the voice fallback method according to any one of the first aspects.
In a fifth aspect, the present application is a computer program product, which includes a computer program stored in a readable storage medium, from which the computer program can be read by at least one processor of a voice fallback method, and the computer program is executed by the at least one processor to cause the voice fallback method to implement the voice fallback method according to the first aspect.
According to the voice fallback method, the voice fallback device and the terminal device, when the terminal device resides in a first cell, a system message from the first cell is received, wherein the system message includes a voice indication identifier and frequency point information of N second cells, a format of the first cell is higher than a format of the second cells, and the voice indication identifier is used for indicating that a network to which the first cell belongs does not support a voice call service; measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells; and if the voice call service is detected, sending a reselection request to a target cell according to the measurement results of the N second cells, wherein the target cell is one of the N second cells, and the reselection request is used for requesting to access the target cell. Therefore, the voice service can be normally carried out in the 5G SA independent deployment scene without supporting the VoNR and the EPS fallback, so that the reliability of the voice service is improved, and the voice experience of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a voice fallback method according to an embodiment of the present application;
FIG. 2 is a diagram of an application scenario of the method of the present embodiment;
fig. 3 is a schematic structural diagram of a voice fallback apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
In the following, some terms in the present application are explained to facilitate understanding by those skilled in the art:
a network device is a device in a wireless network, for example, a Radio Access Network (RAN) node that accesses a terminal to the wireless network. Currently, some examples of RAN nodes are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., a home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP), etc. In one network structure, a network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node, which is not limited herein.
The terminal equipment: the wireless terminal device can be a wireless terminal device or a wired terminal device, and the wireless terminal device can be a device with a wireless transceiving function, can be deployed on land, and comprises indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self driving (self driving), a wireless terminal device in remote medical treatment (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), and the like, which are not limited herein. It can be understood that, in the embodiment of the present application, the terminal device may also be referred to as a User Equipment (UE).
The technical solution described in the embodiments of the present application may be applied to various communication systems, including a 2G, 3G, 4G, 5G communication System or a next generation (next generation) communication System, such as a Global System for mobile communications (GSM), a Code Division Multiple Access (Code Division Multiple Access, CDMA) System, a Time Division Multiple Access (TDMA) System, a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA), a Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA) System, an Orthogonal Frequency Division Multiple Access (OFDMA) System, a single carrier System (SC-FDMA) System, a General packet radio Service (General packet radio Service, serving) System, a Long Term Evolution (GPRS) System, a new radio Network (NR) System, and the like.
The method of the embodiment can be applied to a 5G SA independent deployment, which does not support VoNR (Voice over NR) nor EPS fallback scenario.
With the further acceleration of the 3GPP 5G standard, the voice solution of the 5G terminal is more and more emphasized by the industry. Due to the diversity of the deployment schemes of the 5G network: NSA (Non-Standalone deployment), SA (Standalone deployment), and the current 5G Voice scheme defined by 3GPP still follows the technical route of Voice over LTE (Voice over LTE) using 4G, and adopts the 5G Voice scheme based on IMS (IP Multimedia Subsystem), that is, VoNR. However, in the early 5G deployment, few operators would like to deploy VoNR, because of the high deployment cost and difficulty, because of the interfacing and retrofitting of NR, NGC (core network of 5G) and IMS systems. Moreover, in the early stage, the 5G application should use data service as the core, and voice service hardly brings income increase, so a voice solution with lower cost and capable of meeting 5G voice service is urgently needed.
The invention relates to a terminal, a method and a system for enabling 5G UE to reselect to a 4G system to initiate VoLTE call by a reselection process under the condition that a 5G SA independent deployment mode, namely an Option2 deployment mode, an NR-RAN (5G radio access network) does not support VoNR but an IMS system supports VoIMS (namely an IMS domain supports voice based on IMS but a 5G NR access network does not support but a 4G LTE access network supports VoLTE in the same coverage area), and the 5G system does not support redirection and switching processes to the 4G system.
The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is a flowchart of a voice fallback method according to an embodiment of the present application, and as shown in fig. 1, the method of this embodiment may include:
s101, receiving a system message from the first cell, wherein the system message comprises a voice indication identifier and frequency point information of N second cells, the mode of the first cell is higher than that of the second cells, and the voice indication identifier is used for indicating that a network to which the first cell belongs does not support voice call service.
The main execution body of this embodiment is a terminal device, for example, a 5G UE.
Fig. 2 is an application scenario diagram of the method in this embodiment, when "UE use setting" of 5G UE uses setting "to set" Voice center, taking Voice as a center, "but receives" IMS Voice over PS session not supported and not supporting IMS Voice of PS session "(according to an initial condition, the network does not support VoNR nor EPS fallback) from the network in the process of accessing the 5G network, the terminal device may find that the current 5G system does not support VoNR and EPSfallback, and thus autonomously reselects to other access networks such as 4G and 3G to ensure Voice priority.
In one example, a 5G UE is powered on in a 5G/4G coverage area, scans frequency point information of each cell during the power on process, receives system information of the cell, and selects a cell to camp on. In the normal process, the priority of the 5G cell is greater than that of the 4G cell, so the terminal device resides in the 5G cell, and the 5G cell is recorded as the first cell.
The system message comprises a voice indication identifier and frequency point information of N second cells. The voice indication identifier is used for indicating that the network to which the first cell belongs does not support the voice call service.
For example, the Voice indication identifier is "IMS Voice over LTE supported duringselection", and supports IMS Voice of LTE during reselection ", that is, when the aforementioned precondition is satisfied, the UE receives the service identifier after attaching to the 5G cell, and then represents that both the 5G terminal device and the network device support to implement VoLTE by reselecting to 4G on 5G, thereby performing Voice service.
S102, measuring the N second cells according to the voice indication marks and the frequency point information of the N second cells.
Specifically, after the terminal device reads the identifier of "IMS Voice over lte allowed duration selection" from the system message of the 5G cell to the network, it acquires that the 5G cell does not support the Voice call service.
In this way, the terminal device measures the N second cells according to the frequency point information of the N second cells carried in the system message, and obtains the measured values of the N second cells.
Optionally, in order to ensure the accuracy of the measurement, the measuring the N second cells in the above S102 includes:
and periodically measuring the network information of the N second cells according to a preset measurement period. For example, measurement is periodically initiated on N4G cells, and cell information, such as network quality, cell ID, frequency point information, and the like, of the N4G cells is obtained.
Optionally, the measurement period may be a more reasonable value, such as 2s, according to compromise between power consumption and timeliness of originating call, that is, if cell information of an inter-system (e.g., 4G) is measured every 2s, power may be saved, and when the UE initiates a call, signal quality of a current neighboring cell may be accurately determined, so as to initiate reselection, and a reselection success rate is high.
Optionally, the terminal device may also measure the N second cells in real time, or the terminal device measures the N second cells when idle.
S103, if the voice call service is detected, sending a reselection request to a target cell according to the measurement results of the N second cells, wherein the target cell is one of the N second cells, and the reselection request is used for requesting to access the target cell.
Specifically, after the terminal device resides in the 5G network, when the terminal device performs the voice service, the terminal device selects one second cell from the N second cells as the target cell according to the measurement results of the N second cells in the above step. And then, sending a reselection request to the target cell, wherein the reselection request is used for requesting to access the target cell so as to perform voice service in the target cell. Therefore, the voice service can be normally carried out in the 5G SA independent deployment scene without supporting the VoNR and the EPS fallback, so that the reliability of the voice service is improved, and the voice experience of a user is improved.
In the voice fallback method provided by the embodiment of the application, when a terminal device resides in a first cell, a system message from the first cell is received, where the system message includes a voice indication identifier and frequency point information of N second cells, a format of the first cell is higher than a format of the second cells, and the voice indication identifier is used to indicate that a network to which the first cell belongs does not support a voice call service; measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells; and if the voice call service is detected, sending a reselection request to a target cell according to the measurement results of the N second cells, wherein the target cell is one of the N second cells, and the reselection request is used for requesting to access the target cell. Therefore, the voice service can be normally carried out in the 5G SA independent deployment scene without supporting the VoNR and the EPS fallback, so that the reliability of the voice service is improved, and the voice experience of a user is improved.
In some embodiments, when the terminal device is a calling party, and when the voice call service is detected in S103, sending a reselection request to the target cell according to the measurement results of the N second cells may include:
and if the voice call service is initiated, sending a reselection request to the target cell according to the measurement results of the N second cells.
Optionally, the target cell in this embodiment may be any cell in the N second cells.
In one example, the target cell may be a neighbor cell of a first cell of the N second cells.
Optionally, the network information of the second cell includes a network quality of the second cell.
At this time, the target cell is a second cell with the best network quality among the N second cells.
If the terminal device initiates a voice call service, a target cell may be determined according to the above method, and a reselection request may be sent to the target cell to reselect the target cell and perform the voice call service in the target cell.
In some embodiments, when the terminal device is a called party, and when the voice call service is detected in S103, sending a reselection request to the target cell according to the measurement results of the N second cells may include:
and if a paging message (namely a paging message) is received, sending a reselection request to the target cell according to the measurement results of the N second cells, wherein the paging message is used for indicating that other terminal equipment sends a voice call to the terminal equipment.
Specifically, the network device receives a voice call initiated by another user to the 5G UE, sends a paging message to the 5gu, and carries calling information (such as an IMPU of the calling, routing information, and the like) in the paging message. After receiving the paging message, the terminal device knows that the Voice indication identifier, for example, the condition of "IMS Voice over LTE supported duringselection" is satisfied, and then the terminal device immediately initiates reselection to the target cell.
It should be noted that the method for reselecting the target cell from the first cell by the terminal device according to the embodiment of the present application is the same as the existing method, and is not described herein again.
In some embodiments, when the voice call service is detected in S103, sending a reselection request to the target cell according to the measurement results of the N second cells includes:
and if the voice call service is detected and the terminal equipment is detected to be in an idle state, sending a reselection request to the target cell according to the measurement results of the N second cells.
In some embodiments, when the voice call service is detected in S103, sending a reselection request to the target cell according to the measurement results of the N second cells includes:
if the voice call service is detected and the terminal equipment is detected to be in a connected state or a deactivated state, switching the terminal equipment to an idle state;
and determining the target cell according to the measurement results of the N second cells, and sending a reselection request to the target cell.
Specifically, because reselection can be initiated only in the Idle state, if the UE is in the RRCconnected (i.e., RRC connected state) or RRC inactive (i.e., RRC activated state) when initiating a call, the UE first returns to the RRC Idle (i.e., RRC Idle state) through a connection release or RNAUpdate (i.e., RNA update) procedure, and then proceeds to step 3.
If the UE is in an RRC idle state when receiving the calling paging, the UE immediately initiates reselection to a target cell; if the UE is in an RRC inactive state when receiving the calling paging, the UE immediately RNA Update returns to an idle state, and then reselection is initiated to a target cell; if the UE is in an RRC connected state when receiving the calling paging, the UE immediately and autonomously performs connection release operation so as to enter an idle state, and then initiates reselection to a target cell.
Any of the voice fallback methods provided by the embodiments of the present application may be performed by any suitable device having data processing capabilities, including but not limited to: terminal equipment, a server and the like. Alternatively, any of the voice fallback methods provided by the embodiments of the present application may be executed by a processor, for example, the processor may execute any of the voice fallback methods mentioned in the embodiments of the present application by calling a corresponding instruction stored in a memory. And will not be described in detail below.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Fig. 3 is a schematic structural diagram of a voice fallback apparatus according to an embodiment of the present application, where the voice fallback apparatus 100 is suitable for a terminal device, and the terminal device is camped in a first cell, as shown in fig. 1, the voice fallback apparatus 100 of this embodiment includes:
a receiving module 110, configured to receive a system message from the first cell, where the system message includes a voice indicator and frequency point information of N second cells, a standard of the first cell is higher than a standard of the second cells, and the voice indicator is used to indicate that a network to which the first cell belongs does not support a voice call service;
a processing module 120, configured to measure the N second cells according to the voice indicator and the frequency point information of the N second cells;
a sending module 130, configured to send, if the processing module detects a voice call service, a reselection request to a target cell according to the measurement results of the N second cells, where the target cell is one of the N second cells, and the reselection request is used to request to access the target cell.
The speech rollback apparatus according to the embodiment of the present application may be configured to implement the technical solutions of the above-described method embodiments, and its implementation principle and technical effect are similar, which are not described herein again.
In a possible implementation manner of this embodiment, the sending module 130 is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if a voice call service is initiated;
or,
the sending module 130 is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if a paging message is received, where the paging message is used to indicate that there is another terminal device to send a voice call to the terminal device.
In a possible implementation manner of this embodiment, the processing module 120 is specifically configured to periodically measure the network information of the N second cells according to a preset measurement period.
Optionally, the network information of the second cell includes a network quality of the second cell.
Optionally, the target cell is a second cell with the best network quality in the N second cells.
Optionally, the N second cells are neighboring cells of the first cell.
In a possible implementation manner of this embodiment, the processing module 120 is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if the processing module detects that the voice call service is detected and the terminal device is in an idle state.
In a possible implementation manner of this embodiment, the processing module 120 is further configured to switch the terminal device to an idle state if a voice call service is detected and it is detected that the terminal device is in a connected state or a deactivated state;
the sending module 130 is specifically configured to determine the target cell according to the measurement results of the N second cells, and send a reselection request to the target cell.
The speech rollback apparatus according to the embodiment of the present application may be configured to implement the technical solutions of the above-described method embodiments, and its implementation principle and technical effect are similar, which are not described herein again.
Fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application, and as shown in fig. 4, a terminal device 200 according to this embodiment resides in a first cell, where the terminal device 200 includes:
a receiver 210, configured to receive a system message from the first cell, where the system message includes a voice indicator and frequency point information of N second cells, a standard of the first cell is higher than a standard of the second cells, and the voice indicator is used to indicate that a network to which the first cell belongs does not support a voice call service;
the processor 220 is configured to measure the N second cells according to the voice indicator and the frequency point information of the N second cells;
a transmitter 230, configured to send, according to the measurement results of the N second cells, a reselection request to a target cell if the processing module detects a voice call service, where the target cell is one of the N second cells, and the reselection request is used to request to access the target cell.
The terminal device of the embodiment of the present application may be configured to execute the technical solution of the above-described method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.
In a possible implementation manner of this embodiment, the transmitter 230 is specifically configured to, if a voice call service is initiated, send a reselection request to the target cell according to the measurement results of the N second cells;
or,
the transmitter 230 is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if a paging message is received, where the paging message is used to indicate that there is another terminal device sending a voice call to the terminal device.
In a possible implementation manner of this embodiment, the processor 220 is specifically configured to periodically measure the network information of the N second cells according to a preset measurement period.
Optionally, the network information of the second cell includes a network quality of the second cell.
Optionally, the target cell is a second cell with the best network quality in the N second cells.
Optionally, the N second cells are neighboring cells of the first cell.
In a possible implementation manner of this embodiment, the processor 220 is specifically configured to send a reselection request to the target cell according to the measurement results of the N second cells if the processing module detects that the voice call service is detected and the terminal device is in an idle state.
In a possible implementation manner of this embodiment, the processor 220 is further configured to switch the terminal device to an idle state if a voice call service is detected and it is detected that the terminal device is in a connected state or a deactivated state;
the transmitter 230 is specifically configured to determine the target cell according to the measurement results of the N second cells, and send a reselection request to the target cell.
The terminal device of the embodiment of the present application may be configured to execute the technical solution of the above-described method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.
Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (12)

1. A voice fallback method is applicable to a terminal device, wherein the terminal device is camped on a first cell, and the method comprises:
receiving a system message from the first cell, wherein the system message includes a voice indication identifier and frequency point information of N second cells, the system of the first cell is higher than that of the second cells, and the voice indication identifier is used for indicating that a network to which the first cell belongs does not support voice call service;
measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells;
and if the voice call service is detected, sending a reselection request to a target cell according to the measurement results of the N second cells, wherein the target cell is one of the N second cells, and the reselection request is used for requesting to access the target cell.
2. The method of claim 1, wherein the sending a reselection request to a target cell according to the measurement results of the N second cells if the voice call service is detected comprises:
if the voice call service is initiated, sending a reselection request to the target cell according to the measurement results of the N second cells;
or,
and if a paging message is received, sending a reselection request to the target cell according to the measurement results of the N second cells, wherein the paging message is used for indicating that other terminal equipment sends a voice call to the terminal equipment.
3. The method of claim 1, wherein the measuring the N second cells comprises:
and periodically measuring the network information of the N second cells according to a preset measurement period.
4. The method of claim 1, wherein the network information of the second cell comprises a network quality of the second cell.
5. The method of claim 4, wherein the target cell is a second cell with the best network quality among the N second cells.
6. The method of claim 1, wherein the N second cells are neighbor cells of the first cell.
7. The method of claim 1, wherein the sending a reselection request to the target cell according to the measurement results of the N second cells if the voice call service is detected comprises:
and if the voice call service is detected and the terminal equipment is detected to be in an idle state, sending a reselection request to the target cell according to the measurement results of the N second cells.
8. The method of claim 1, wherein the sending a reselection request to the target cell according to the measurement results of the N second cells if the voice call service is detected comprises:
if the voice call service is detected and the terminal equipment is detected to be in a connected state or a deactivated state, switching the terminal equipment to an idle state;
and determining the target cell according to the measurement results of the N second cells, and sending a reselection request to the target cell.
9. A voice fallback apparatus, wherein the apparatus is adapted to a terminal device, wherein the terminal device is camped on a first cell, and wherein the apparatus comprises:
a receiving module, configured to receive a system message from the first cell, where the system message includes a voice indicator and frequency point information of N second cells, a standard of the first cell is higher than a standard of the second cells, and the voice indicator is used to indicate that a network to which the first cell belongs does not support a voice call service;
the processing module is used for measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells;
a sending module, configured to send, if the processing module detects a voice call service, a reselection request to a target cell according to the measurement results of the N second cells, where the target cell is one of the N second cells, and the reselection request is used to request access to the target cell.
10. A terminal device, wherein the terminal device is camped on a first cell, the terminal device comprising:
a receiver, configured to receive a system message from the first cell, where the system message includes a voice indicator and frequency point information of N second cells, a standard of the first cell is higher than a standard of the second cells, and the voice indicator is used to indicate that a network to which the first cell belongs does not support a voice call service;
the processor is used for measuring the N second cells according to the voice indication identification and the frequency point information of the N second cells;
and a transmitter, configured to send, if the processing module detects a voice call service, a reselection request to a target cell according to the measurement results of the N second cells, where the target cell is one of the N second cells, and the reselection request is used to request access to the target cell.
11. A computer storage medium, characterized in that the storage medium has stored therein a computer program which, when executed, implements a speech fallback method as claimed in any one of the claims 1-8.
12. A computer program product, characterized in that the program product comprises a computer program stored in a readable storage medium, from which the computer program can be read by at least one processor of an off-line speech recognition arrangement, the execution of the computer program by the at least one processor causing the off-line speech recognition arrangement to implement the speech fallback method as claimed in any one of the claims 1-8.
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