CN113038502B

CN113038502B - Optimization method and device for VOLTE voice service

Info

Publication number: CN113038502B
Application number: CN201911349515.1A
Authority: CN
Inventors: 边燕; 周涛
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2022-05-13
Anticipated expiration: 2039-12-24
Also published as: CN113038502A

Abstract

The application discloses a VOLTE voice service optimization method and a VOLTE voice service optimization device, wherein the method comprises the following steps: under the non-independent networking NSA scene, the network equipment receives a QoS grade identification QCI1 load building request initiated by user equipment UE; establishing a QCI1 bearer based on the QCI1 bearer establishment request, judging whether the UE supports a new air interface NR according to the capability information reported by the UE, and determining whether to prohibit the UE from accessing to an auxiliary cell SCG corresponding to the UE according to a judgment result; and carrying out VOLTE voice service based on the QCI1 bearer. The method solves the technical problem that in the prior art, UE under an NSA network has abnormity on an NR side or UE-gNB on the NR side has abnormity, and the VOLTE voice service of the UE is influenced by multiple random accesses on the NR side.

Description

Optimization method and device for VOLTE voice service

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for optimizing a VOLTE voice service.

Background

A UE (User Equipment) first accesses an LTE (Long Term Evolution) system in an NSA (Non-stand alone networking) network, and when a measurement report reported by the UE meets a B1 event added to an EN-DC (E-UTRA-NR Dual Connectivity, 4G-5G Dual Connectivity) link, the LTE and NR (New Radio, New air interface) will establish the EN-DC link, and then the UE may initiate a random access at the NR. In the prior art, UE under NSA networking uses PDCP (Packet Data Convergence Protocol) of LTE to perform Voice over Long-Term Evolution (VOLTE-Term Evolution) Voice service, and all UEs perform VOLTE Voice service on LTE side in a unified manner.

Since VOLTE in the NSA network is established on the LTE side, the eNB directly executes the VOLTE establishment procedure on LTE as long as VOLTE voice service is performed. However, if the UE is abnormal on the NR side or the NR side base station (en-gNB) is abnormal, the UE actively tries to perform random access on the NR side multiple times or the base station triggers the UE to perform random access. Multiple random accesses cannot be successful, and the process of random access is always performed, which seriously affects the processing and scheduling of the base station and the terminal and also causes the increase of power consumption.

Disclosure of Invention

The application provides a method and a device for optimizing VOLTE voice service, which are used for solving the technical problem that in the prior art, UE under an NSA network has abnormity on an NR side, or UE has abnormity on an NR side en-gNB, and the VOLTE voice service of the UE is influenced by multiple random accesses on the NR side.

In a first aspect, a method for optimizing a VOLTE voice service is provided, where in an dependent networking NSA scenario, the method includes:

the network equipment receives a QoS (Quality of Service) grade identification QCI1 bearer establishment request initiated by user equipment UE;

establishing a QCI1 bearer based on the QCI1 bearer establishment request, judging whether the UE supports a new air interface NR according to the capability information reported by the UE, and determining whether to prohibit the UE from accessing to an auxiliary cell SCG corresponding to the UE according to a judgment result;

and carrying out VOLTE voice service based on the QCI1 bearer.

According to the scheme provided by the embodiment of the application, when the UE carries out VOLTE voice service, the network equipment firstly judges whether the UE supports NR, and for the UE which does not support NR, the network equipment carries out normal VOLTE processing flow. For the UE supporting NR, according to whether the UE has accessed the NR network, the network device establishes QCI1 for the UE that has not accessed the NR network, and further to prevent the UE from accessing the NR cell again and causing an abnormality during a subsequent VOLTE voice service, the network device prohibits the UE from accessing an auxiliary cell SCG corresponding to the UE, thereby preventing the UE from failing to access the NR network for multiple times.

In this embodiment of the present application, the specific case whether the UE supports the new air interface NR includes: whether the UE's own capabilities (hardware support and software implementation) support NR; and in the case that the capability of the UE itself supports NR, it is also determined whether the UE really resides in an NR network, whether the UE resides in an NR side network to a certain extent, and whether the UE currently has a corresponding operation in the NR, so based on the comprehensive consideration of the capability and the residence, the determining whether to prohibit the UE from accessing to the secondary cell SCG corresponding to the UE according to the determination result in the embodiment of the present application may include:

and if the judgment result is that the UE supports NR, judging whether the UE is resided in an NR network, and if not, prohibiting the UE from accessing an auxiliary cell SCG corresponding to the UE.

Further, based on the above manner, if the UE resides in the NR network, the method further includes:

the network equipment monitors and acquires the state information of the UE in the VOLTE voice service process with the UE;

and if the problem of UE auxiliary cell access failure in the VOLTE voice service process is determined according to the state information, the UE is forbidden to access an auxiliary cell SCG corresponding to the UE.

In this embodiment, prohibiting the UE from accessing the secondary cell SCG corresponding to the UE is to prohibit access to the current cell by the UE, so the specific implementation of the prohibition operation may be:

acquiring a UE index distributed by the UE in a current cell;

and forbidding all auxiliary cell SCG access processes initiated by the UE based on the UE index.

In this example, a barring operation is performed on the UE index allocated to the current cell, and if the UE accesses again (or moves to a new cell) and a new UE index is generated again, whether to bar the secondary cell SCG Add procedure of the UE needs to be determined again by the methods provided in the embodiments of the first aspect.

In a second aspect, an optimization apparatus for VOLTE voice service is provided, where in an dependent networking NSA scenario, the apparatus includes:

a receiving module, configured to receive a QoS class identifier QCI1 bearer establishment request initiated by a user equipment UE;

a processing module, configured to establish a QCI1 bearer based on the QCI1 bearer establishment request, determine whether the UE supports a new air interface NR according to the capability information reported by the UE, and determine whether to prohibit the UE from accessing to an auxiliary cell SCG corresponding to the UE according to a determination result;

and the service module is used for carrying out VOLTE voice service based on the QCI1 bearer.

In an optional implementation manner, the processing module is further configured to determine whether the UE resides in an NR network if the determination result is that the UE supports NR, and if not, prohibit the UE from accessing to a secondary cell SCG corresponding to the UE after the network device establishes a QCI1 bearer.

In an optional implementation manner, the processing module is further configured to monitor and obtain state information of the UE during a VOLTE voice service with the UE if the UE resides in an NR network; and if the problem of UE auxiliary cell access failure in the VOLTE voice service process is determined according to the state information, the UE is forbidden to access an auxiliary cell SCG corresponding to the UE.

In an optional embodiment, the processing module is specifically configured to obtain a UE index allocated by the UE in a current cell; and forbidding all auxiliary cell SCG access processes initiated by the UE based on the UE index.

In a third aspect, a network device is provided, including:

a memory to store instructions; and

a processor configured to execute the instructions, wherein the instructions, when executed, cause the apparatus to implement the method of any of the first aspects.

In a fourth aspect, a storage medium is readable, the storage medium storing electronic device-executable instructions for causing an electronic device to implement the method of any of the first aspects.

Drawings

FIG. 1 is a schematic diagram of a system architecture to which the method provided by the embodiments of the present application may be applied;

fig. 2 is a schematic flowchart of a method for optimizing a VOLTE voice service according to an embodiment of the present application;

fig. 3 is a flowchart illustrating a method for determining whether to prohibit the UE from accessing the secondary cell SCG in the method according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of an optimization apparatus for VOLTE voice service according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

In the prior art, if the UE supports NR in the NSA network, the UE accesses an NR cell through an LTE side signaling plane, and then performs a service in the NR cell; and if the UE does not support NR, the UE is accessed to LTE, and then services are carried out in an LTE cell. However, currently, the VOLTE voice service is performed on the LTE side, and for the NR terminal and the non-NR terminal, the eNB (evolved Node B) does not distinguish between them, and as long as the UE has a voice service request, the related processing flow of building the VOLTE service is directly performed on the LTE. However, if the UE is abnormal on the NR side, or the NR side en-gNB is abnormal, the UE actively tries to perform random access on the NR side multiple times, or the base station triggers the UE to perform random access. The random access process is carried out all the time when the multiple random access can not be successful; the signaling for the random access and VOLTE service process is carried in the signaling of LTE and occupies the same LTE resource. In the VOLTE service processing process, if the random access problem of the UE at the NR side occurs, and due to the implementation mechanism of the terminal, the UE can carry out the random access process for multiple times, so that the signaling resource can not be seized by the unsuccessful random access process and the ongoing VOLTE service, the processing of the VOLTE service by the base station is influenced, and a large amount of signaling resource waste is increased.

Based on the above problems in the prior art, an embodiment of the present application provides a method for optimizing a VOLTE voice service, where the method has an overall idea that:

according to the scheme provided by the embodiment of the application, when the UE carries out VOLTE voice service, the network equipment firstly judges whether the UE supports NR, and for the UE which does not support NR, the network equipment carries out normal VOLTE processing flow. For the UE supporting NR, according to whether the UE has accessed the NR network or not, for the UE which has not accessed the NR network, the network equipment establishes QCI1, and further in order to prevent the UE from accessing the NR cell again to cause abnormity in the subsequent VOLTE voice service process, the network equipment prohibits the UE from accessing an auxiliary cell SCG corresponding to the UE, and the UE is prevented from being unsuccessfully accessed randomly for many times.

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.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The method provided in the embodiment of the present application may be applied to the system architecture shown in fig. 1, where the system architecture may include a terminal device and a network device (the network device may be a base station, where the base station may be an eNB), and this example only shows a device related to the method provided in the embodiment of the present application, and other structural devices are not specifically limited herein if needed in a specific application scenario. The specific method usage scenario may be that the base station receives a QCI (QoS class identifier) 1 bearer establishment request sent by the UE, establishes a QCI1 bearer based on the request, and performs a VOLTE voice service process.

Based on the above usage scenarios, the method and apparatus provided by the embodiments of the present application are further described in detail below with reference to the accompanying drawings and specific application scenarios:

example one

As shown in fig. 2, an embodiment of the present application provides an optimization method for a VOLTE voice service, where in a scenario of non-independent networking NSA, the method may include:

step 201, a network device receives a QoS class identifier QCI1 bearer establishment request initiated by a user equipment UE;

step 202, establishing a QCI1 bearer based on the QCI1 bearer establishment request, determining whether the UE supports a new air interface NR according to the capability information reported by the UE, and determining whether to prohibit the UE from accessing to an auxiliary cell SCG corresponding to the UE according to the determination result;

wherein, the capability information (UE capability) information may be carried in the QCI1 bearer establishment request for indicating whether the UE supports NR. A specific implementation may be to set a specific flag bit in the QCI1 bearer establishment request to indicate whether the UE supports NR; for example, when the flag bit is 1, it indicates that the UE supports NR; the flag is 0, indicating that the UE does not support NR.

In this embodiment, a specific implementation manner of obtaining the UE capability information may be:

the base station issues UE capacity inquiry to the UE;

then, after receiving the enquery, the UE replies to the UE capability information.

In this example, the two messages, UE capability establishment and UE capability information, are both air interface messages, that is, messages sent between the eNB and the UE.

In this embodiment, prohibiting the UE from accessing the secondary cell SCG corresponding to the UE (or called prohibiting the secondary cell SCG Add procedure of the UE) is to prohibit a UE index (index) accessed by the UE this time, and if the UE accesses again (or moves to a new cell), and a new UE index is regenerated, whether to prohibit the secondary cell SCG Add procedure of the UE needs to be re-determined by the above method. Therefore, the specific implementation of prohibiting the SCG Add procedure of the UE in this example may be:

acquiring a UE index distributed by the UE in a current cell;

In this embodiment, if the network device (which may be an eNB) side determines whether the UE supports NR according to the UE capability reported by the UE. If not, the UE may be defined as LTE UE, and for LTE UE, the NR side of the UE is not abnormal or the NR side en-gNB is not abnormal, so that there is no case that the service execution of LTE side is affected by the NR side abnormality, so that the eNB executes the QCI1 to establish the relevant procedure for LTE UE according to the method provided by the prior art. If the UE supports NR, the UE may be defined as NR UE (the UE may access LTE or NR), and for NR UE, because a random access condition of an NR side may affect LTE service implementation, the eNB may determine whether to prohibit the UE from accessing an auxiliary cell SCG corresponding to the UE according to the support condition of the UE on NR, that is, if the UE drops from the NR side, a random access process is not performed.

And step 203, carrying out VOLTE voice service based on the QCI1 bearer.

Compared with the foregoing embodiment, in the prior art, as long as the network device receives the QCI1 bearer establishment request, the modes of directly establishing the QCI1 bearer are different, and it may be determined whether the UE supports the NR while establishing the QCI1 bearer, and according to the situation, it is determined whether to prohibit the UE from accessing the secondary cell SCG corresponding to the UE; based on the prior art that if the UE is abnormal on the NR side or the NR side en-gbb is abnormal, if the UE is prohibited from accessing the secondary cell SCG corresponding to the UE, that is, the process of accessing the UE to the NR side is prohibited, the UE will not perform random access on the NR side any more, and will not perform multiple access.

Referring to fig. 3, the specific case of whether the UE supports the new air interface NR in the embodiment of the present application includes: whether the UE's own capabilities (hardware support and software implementation) support NR; and in the case that the capability of the UE itself supports NR, it may also be a case that the UE really resides in an NR network, and whether the UE resides in an NR-side network to a certain extent, and whether the UE currently operates at an NR, so based on the comprehensive consideration of the capability and the residence cases, based on the embodiment shown in fig. 2, determining whether to prohibit the UE from accessing the secondary cell SCG corresponding to the UE (or referred to as a secondary cell SCG Add procedure for prohibiting the UE) according to the determination result in the case that the UE supports NR, the specific implementation of determining whether to prohibit the UE from accessing the secondary cell SCG corresponding to the UE (or referred to as a secondary cell SCG Add procedure for prohibiting the UE) may further include the following steps:

step 301, the eNB determines whether the UE resides in an NR network, and if not, executes step 302; otherwise, go to step 304;

step 302, after establishing QCI1 bearer, the eNB prohibits the secondary cell SCG Add procedure of the UE.

Under the condition that the UE does not reside in the NR network, the communication quality of the NR network corresponding to the UE at present can be presumed not to meet the connection requirement, so that under the condition that the UE is determined to be the NR UE but does not reside in the NR network, the SCG Add process of the auxiliary cell of the UE can be directly forbidden, the UE is prevented from repeatedly performing random access under the condition that the quality of the NR network is unstable, energy consumption can be reduced, and signaling overhead can be avoided.

Step 303, the voice service is finished, the QCI1 is deleted, and the eNB can execute the normal next processing flow.

304, after establishing the QCI1 bearer, the eNB performs VOLTE voice service based on the QCI1 bearer;

305, monitoring and acquiring state information of the UE by the eNB in the VOLTE voice service process with the UE;

in this embodiment, the state information of the UE is obtained based on signaling interaction between the UE and the base station, and if the UE loses uplink or loses downlink, a random access process is initiated, so after the UE initiates random access, if the UE fails to report SCG Failure, the UE state can be known through the signaling reported by the UE.

Step 306, determining that the problem of UE auxiliary cell access failure occurs in the VOLTE voice service process according to the state information, and forbidding an auxiliary cell SCG Add process of the UE.

In the voice call process, the eNB monitors the UE state to obtain the state information of the UE, and determines, according to the state information, if an SCG Failure (secondary cell group Failure) problem occurs in the VOLTE process of the UE, the SCG Failure may be that the NR side of the UE is abnormal or the NR side en-gNB is abnormal, regardless of whether the UE or the en-gNB is abnormal, according to an access mechanism in the prior art, the UE may perform random access, but the access cannot be successful even if multiple random accesses are performed based on the above-mentioned abnormality, so that the random access of the NR side may fail multiple times, thereby affecting the VOLTE voice service being performed by the UE. In order to avoid the influence of the VOLTE voice service, in this embodiment, when detecting the SCG Failure problem, the eNB may directly prohibit the SCG Add procedure from the UE, and prevent the UE from performing random access on the NR side.

In this embodiment, if the UE resides in the NR network, the UE monitors the NR network in real time, and as long as the UE has SCG Failure, it is determined that there is a problem with the base station on the NR side of the UE or the base station on the NR side, so that the base station may be triggered to prohibit the SCG Add process of the secondary cell of the UE, thereby avoiding a problem that the UE performs unsuccessful random access repeatedly during the VOLTE voice service process, thereby affecting the implementation of the VOLTE voice service.

If the situation that the random access of the NR side is not influenced is determined according to the state information, the eNB carries out the next process according to the actual operation of the user; for example: the user's actual operation is a flow of executing switching upon switching, and the data service is a flow of performing the data service.

In the method provided by the embodiment of the application, when the UE performs the VOLTE voice service, the eNB first determines whether the UE supports NR, and for the UE supporting NR, first determines whether the UE has accessed an NR network. When the UE does not access the NR network, the eNB firstly executes the VOLTE processing flow, establishes the QCI1, and prohibits the UE from carrying out the SCG Add process, thereby effectively preventing the follow-up UE from accessing the NR cell again to cause abnormity and reducing the waste of signaling resources.

Further, when the UE accesses the NR network, the eNB firstly performs a VOLTE processing procedure, establishes QCI1, and secondly performs monitoring of a VOLTE voice process on the UE. When SCGFailure appears in UE in VOLTE process, eNB triggers and forbids the UE to carry out SCG Add process, namely if UE is disconnected on NR side, random access process is not executed any more; signaling overhead and load of the eNB and the UE in an abnormal scene are reduced, success rate and stability of VOLTE service in NSA networking are improved, user perception is improved, and the problem of VOLTE call drop can be greatly reduced.

As shown in fig. 4, according to the foregoing method, an embodiment of the present application further provides an optimization apparatus for VOLTE voice service, where the optimization apparatus 400 is disposed in a non-independent networking NSA scenario, and the apparatus includes:

a receiving module 401, configured to receive a QoS class identifier QCI1 bearer establishment request initiated by a user equipment UE;

a processing module 402, configured to establish a QCI1 bearer based on the QCI1 bearer establishment request, determine whether the UE supports a new air interface NR according to the capability information reported by the UE, and determine whether to prohibit the UE from accessing to an auxiliary cell SCG corresponding to the UE according to a determination result;

a service module 403, configured to perform VOLTE voice service based on the QCI1 bearer.

The specific cases of whether the UE supports the new air interface NR in the embodiment of the present application include: whether the UE's own capabilities (hardware support and software implementation) support NR; and if the capability of the UE itself supports NR, whether the UE really resides in an NR network, whether the UE resides in an NR-side network to a certain extent, and whether the UE currently operates at an NR, therefore based on the comprehensive consideration of the capability and the residence, the specific function of the processing module 402 in the apparatus structure provided in the embodiment of the present application may also be the following:

the processing module 402 is further configured to determine whether the UE resides in an NR network if the determination result indicates that the UE supports NR, and prohibit the UE from accessing the secondary cell SCG corresponding to the UE after the network device establishes QCI1 bearer if the determination result indicates that the UE does not support NR.

In an optional embodiment, the processing module 402 is further configured to monitor and obtain status information of the UE during a VOLTE voice service with the UE if the UE resides in an NR network; and if the problem of UE auxiliary cell access failure in the VOLTE voice service process is determined according to the state information, the UE is forbidden to access an auxiliary cell SCG corresponding to the UE.

In this embodiment, prohibiting the UE from accessing the secondary cell SCG corresponding to the UE (or called prohibiting the secondary cell SCG Add procedure of the UE) is to prohibit a UE index (index) accessed by the UE this time, and if the UE accesses again (or moves to a new cell), and a new UE index is regenerated, whether to prohibit the secondary cell SCG Add procedure of the UE needs to be re-determined by the above method. Therefore, in this example, the specific implementation of the processing module 402 prohibiting the SCG Add procedure of the UE may be:

the processing module 402 is specifically configured to obtain a UE index allocated by the UE in the current cell; and forbidding all auxiliary cell SCG access processes initiated by the UE based on the UE index.

Based on the same inventive concept, an embodiment of the present application provides a network device, please refer to fig. 5, where the network device includes at least one processor 502 and a memory 501 connected to the at least one processor, a specific connection medium between the processor 502 and the memory 501 is not limited in the embodiment of the present application, fig. 5 illustrates that the processor 502 and the memory 501 are connected by a bus 500, the bus 500 is represented by a thick line in fig. 5, and a connection manner between other components is merely for schematic illustration and is not limited thereto. The bus 500 may be divided into an address bus, a data bus, a control bus, etc., and is shown with only one thick line in fig. 5 for ease of illustration, but does not represent only one bus or one type of bus.

In the embodiment of the present application, the memory 501 stores instructions executable by the at least one processor 502, and the at least one processor 502 may execute the steps included in the foregoing method for optimizing VOLTE voice service by calling the instructions stored in the memory 501. The processor 502 is a control center of the network device, and may be connected to various parts of the entire network device through various interfaces and lines, and implement various functions of the network device by executing instructions stored in the memory 501. Optionally, the processor 502 may include one or more processing units, and the processor 502 may integrate an application processor and a modem processor, wherein the application processor mainly handles operating systems, user interfaces, application programs, and the like, and the modem processor mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 502. In some embodiments, the processor 502 and the memory 501 may be implemented on the same chip, or in some embodiments, they may be implemented separately on separate chips.

The memory 501, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. The Memory 501 may include at least one type of storage medium, and may include, for example, a flash Memory, a hard disk, a multimedia card, a card-type Memory, a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Programmable Read Only Memory (PROM), a Read Only Memory (ROM), a charge Erasable Programmable Read Only Memory (EEPROM), a magnetic Memory, a magnetic disk, an optical disk, and so on. The memory 501 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 501 in the embodiments of the present application may also be a circuit or any other device capable of implementing a storage function for storing program instructions and/or data.

The processor 502 may be a general-purpose processor, such as a Central Processing Unit (CPU), digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like, that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method for optimizing the VOLTE voice service disclosed in the embodiment of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

By programming the processor 502, the code corresponding to the optimization method for the VOLTE voice service described in the foregoing embodiment may be fixed in the chip, so that the chip can execute the steps of the optimization method for the VOLTE voice service when running.

Based on the same inventive concept, embodiments of the present application further provide a readable storage medium, where the storage medium stores electronic device executable instructions, and the electronic device executable instructions are configured to enable an electronic device to perform the steps of the foregoing method for optimizing the VOLTE voice service.

The electronic device and the computer in this embodiment are used as examples of the most common device that can perform the method in this embodiment, but the method provided in this embodiment is not limited to be performed only by using a device named as an electronic device or a computer in the prior art, and any electronic device that can read and/or execute instructions belongs to the electronic device or the computer described in this embodiment.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for optimizing VOLTE voice service is characterized in that under the scene of non-independent networking NSA, the method comprises the following steps:

the network equipment receives a QoS grade identification QCI1 bearer establishment request initiated by User Equipment (UE);

establishing a QCI1 bearer based on the QCI1 bearer establishment request, and judging whether the UE supports a new air interface NR according to the capability information reported by the UE;

if the judgment result is that the UE supports NR, judging whether the UE is resident in an NR network; if not, prohibiting the UE from accessing to an auxiliary cell SCG corresponding to the UE; if so, the network equipment monitors and acquires the state information of the UE in the VOLTE voice service process with the UE, determines that the UE auxiliary cell access failure problem occurs in the VOLTE voice service process according to the state information, and prohibits the UE from accessing an auxiliary cell SCG corresponding to the UE;

and carrying out VOLTE voice service based on the QCI1 bearer.

2. The method of claim 1, wherein prohibiting the UE from accessing a secondary cell SCG corresponding to the UE comprises:

acquiring a UE index distributed by the UE in a current cell;

3. An optimization device for VOLTE voice service is characterized in that under the NSA scene of non-independent networking, the device comprises:

a processing module, configured to establish a QCI1 bearer based on the QCI1 bearer establishment request, and determine whether the UE supports a new air interface NR according to capability information reported by the UE;

the processing module is further configured to determine whether the UE resides in an NR network when the determination result indicates that the UE supports NR; if not, prohibiting the UE from accessing to an auxiliary cell SCG corresponding to the UE; if so, the network equipment monitors and acquires the state information of the UE in the VOLTE voice service process with the UE, determines that the UE auxiliary cell access failure problem occurs in the VOLTE voice service process according to the state information, and prohibits the UE from accessing an auxiliary cell SCG corresponding to the UE;

4. The apparatus of claim 3, wherein the processing module is specifically configured to obtain a UE index assigned by the UE in a current cell; and forbidding all auxiliary cell SCG access processes initiated by the UE based on the UE index.

5. A network device, comprising:

a memory for storing program instructions;

a processor for calling program instructions stored in said memory and for executing the steps comprised by the method of any one of claims 1-2 according to the obtained program instructions.

6. A readable storage medium storing electronic device-executable instructions for causing an electronic device to perform the steps comprising the method of any one of claims 1-2.