CN108934050B - Voice calling method, UE and network system - Google Patents

Voice calling method, UE and network system Download PDF

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Publication number
CN108934050B
CN108934050B CN201810770711.5A CN201810770711A CN108934050B CN 108934050 B CN108934050 B CN 108934050B CN 201810770711 A CN201810770711 A CN 201810770711A CN 108934050 B CN108934050 B CN 108934050B
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network
voice
call request
voice call
ims
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CN108934050A (en
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李佳俊
冯毅
李轶群
杨戈
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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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    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a voice calling method, UE and a network system, relates to the technical field of communication, and solves the problem that in the prior art, when a CSFB scheme of a 4G network is adopted to provide voice service under the condition that an IMS network is not available, the voice dialing access time delay of a voice service requested by a user is long. The method comprises the steps that when UE determines to access a first base station, a first network type of the first base station is obtained; when the UE determines to start a voice dialing interface, judging whether to register an IMS network; when the UE determines that the IMS network is not registered, judging whether an accessible second base station exists or not; when the UE determines that the second base station which can be accessed exists, the UE disconnects the first base station and accesses the second base station; and when the UE receives the voice call request input by the voice dialing interface, the UE initiates the voice call request according to the second network system. The embodiment of the invention is used for manufacturing the UE.

Description

Voice calling method, UE and network system
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a voice call method, a UE, and a network system.
Background
As communication networks evolve to fourth Generation mobile communication technology (hereinafter, referred to as 4G) and fifth Generation mobile communication technology (hereinafter, referred to as 5G), the income of data services gradually becomes the main income of operators. However, the voice service is still one of the main services of the operator, and the call quality of the voice service directly affects the call experience of the user; therefore, how to ensure that the user has better conversation experience becomes a problem to be solved urgently.
The 4G Voice service access network is mainly realized by adopting a Voice service (called Voice over LTE for short) or a Circuit domain Fallback (called CSFB for short) based on a Multimedia Subsystem (called IP Multimedia Subsystem for short) IMS; VoLTE bears voice through a 4G network data domain, and an operator needs to establish an IMS network element to realize a VoLTE process; the CSFB falls back to a circuit domain of a second Generation Mobile phone Communication Technology (2G for short) or a third Generation Mobile Communication Technology (3 rd Generation Mobile Communication Technology for short) through a network control terminal to carry voice, and an operator can realize a user voice call function by using an existing established network. The Voice over New Radio (VoNR) Voice service in the 5G Voice service is used to carry the Voice through the 5G network data domain, and the EPS Fallback Voice service in the 5G Voice service is used to carry the Voice through the 4G network data domain.
Existing 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service all need an operator to build an IMS network, and dialing access time delay of the voice service is short; in the absence of an IMS network, voice traffic services are typically provided through the CSFB scheme of the 4G network; when the CSFB scheme of the 4G network is adopted, a voice service request of a User firstly reaches an Application Server (AS) of a core network, the AS judges whether User Equipment (UE) is registered with the IMS network or not, when the UE is determined not to be registered with the IMS network, whether the UE can fall back to the 3G network or the 2G network or not is judged, if yes, the AS indicates the UE to be switched to the 3G network or the 2G network to restart the voice service requested by the User, the voice dialing and accessing time delay of the voice service requested by the User is longer, and the User experience is influenced.
As can be seen from the above, in the prior art, when the voice service is provided by using the CSFB scheme of the 4G network without the IMS network, the voice dialing access delay of the voice service requested by the user is long.
Disclosure of Invention
Embodiments of the present invention provide a voice call method, a UE, and a network system, which solve the problem in the prior art that when a CSFB scheme of a 4G network is used to provide a voice service without an IMS network, the voice dialing access delay of a voice service requested by a user is long.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a voice call method, including: when the UE accesses the base station through the network of the first network type, a voice dialing interface is started and whether an IMS network is registered or not is judged; the network of the first network system at least comprises any one of a 5G network and a 4G network; when the UE determines that the IMS network is not registered, the UE searches whether a network with a second network type exists; the second network system at least comprises any one of a 3G network and a 2G network; and when the UE determines that the network with the second network type exists, after receiving the voice call request input by the voice dialing interface, initiating the voice call request through the network with the second network type.
According to the scheme, when the UE is accessed to the base station through the network of the first network system, when the voice dialing interface is started, the user needs to call the voice, and the voice call request of the 5G network or the 4G network needs to be based on the IMS network; therefore, at this time, the UE determines whether to register the IMS network, and when it is determined that the IMS network is not registered, it indicates that the 5G network or the 4G network cannot carry the voice service; at this time, the UE is required to determine whether a network of the second network type exists, when it is determined that the network of the second network type exists, after receiving a voice call request input by the voice dialing interface, the UE initiates the voice call request through the network of the second network type, and when it is not determined that the IMS network exists, the UE is not required to be determined whether the UE can fall back to the 3G network or the 2G network, and if so, the AS instructs the UE to switch to the 3G network or the 2G network to re-initiate the voice service requested by the user, thereby shortening the voice dialing access delay when the user uses the UE to perform the voice call, improving the user experience, and solving the problem that the voice dialing access delay of the voice service requested by the user is long when the CSFB scheme of the 4G network is adopted to provide the voice service without the IMS network in the prior art.
Optionally, the method further includes: when UE determines to register IMS network, after receiving voice call request input by voice dialing interface, the UE initiates voice call request through network of first network type.
Optionally, the service category included in the voice call request at least includes one or more of the following items: 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service; when UE determines to register IMS network, after receiving voice call request input by voice dialing interface, the UE initiates the voice call request through the network of the first network type, including: when the UE determines to register an IMS network and the first network type is a 4G network, after receiving a voice call request input by a voice dialing interface, initiating a 4G VoLTE voice service through the network of the first network type; when the UE determines to register the IMS network and the first network type is the 5G network, after receiving a voice call request input by a voice dialing interface, the UE initiates a 5G VoNR voice service or an EPS Fallback voice service through the network of the first network type.
Optionally, the method further includes: and when the UE determines that the network of the second network type does not exist, prompting that the voice call request cannot respond.
In a second aspect, an embodiment of the present invention provides a UE, including: the processing module is used for starting a voice dialing interface and judging whether to register an IMS network or not when the base station is accessed through the network of the first network type; the network of the first network system at least comprises any one of a 5G network and a 4G network; the searching module is also used for searching whether a network with a second network type exists or not when the processing module determines that the IMS network is not registered; the second network system at least comprises any one of a 3G network and a 2G network; and the processing module is also used for initiating a voice call request through the network of the second network system after the receiving module receives the voice call request input by the voice dialing interface when the searching module determines that the network of the second network system exists.
Optionally, the processing module is further configured to initiate the voice call request through the network of the first network type after the receiving module receives the voice call request input by the voice dialing interface when determining to register the IMS network.
Optionally, the service category included in the voice call request at least includes one or more of the following items: 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service; the processing module is specifically used for initiating a 4G VoLTE voice service through the network of the first network system after the receiving module receives a voice call request input by the voice dialing interface when the IMS network is determined to be registered and the first network system is the 4G network; and the processing module is specifically used for initiating a 5G VoNR voice service or an EPS Fallback voice service through the network of the first network type after the receiving module receives the voice call request input by the voice dialing interface when the IMS network is determined to be registered and the first network type is the 5G network.
Optionally, the processing module is further configured to prompt that the voice call request cannot be responded when the searching module determines that the network of the second network type does not exist.
In a third aspect, an embodiment of the present invention provides a network system, including any UE as provided in the second aspect, a base station, a core network, and an IMS.
It can be understood that any UE provided above or UE in the network system is configured to execute the method corresponding to the first aspect provided above, and therefore, the beneficial effects that can be achieved by the UE refer to the method of the first aspect above and the beneficial effects of the corresponding schemes in the following detailed description, which are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a voice call method according to an embodiment of the present invention;
fig. 2 is a second flowchart illustrating a voice call method according to an embodiment of the present invention;
FIG. 3-a is a third flowchart illustrating a voice call method according to an embodiment of the present invention;
FIG. 3-b is a fourth flowchart illustrating a voice call method according to an embodiment of the present invention;
fig. 4 is a fifth flowchart illustrating a voice call method according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating the logical operation of a voice call method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a UE according to an embodiment of the present invention.
Reference numerals:
UE-10；
a receiving module-101; a search module-102; and a processing module-103.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
First embodiment, an embodiment of the present invention provides a voice call method, as shown in fig. 1 and 5, including:
s101, when UE accesses a base station through a network of a first network type, a voice dialing interface is started and whether an IMS network is registered or not is judged; the network of the first network system includes at least any one of a 5G network and a 4G network.
It should be noted that, in practical applications, when the UE accesses the base station via a network of a network type, the subsequent service requests are all based on the network bearer of the network type; illustratively, when the UE accesses the base station with the 5G network, the UE transmits through the 5G network when making a voice call; the 4G network is similar to the 5G network and will not be described herein.
Specifically, after the UE accesses the base station through the network of the first network type, when the user starts the voice dialing interface of the UE, it indicates that the user has a need to perform a voice call; at this time, because the existing 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service all need the operator to build the IMS network; therefore, the UE needs to determine whether the IMS network is registered.
S102, when the UE determines that the IMS network is not registered, the UE searches whether a network with a second network type exists; the second network system at least comprises any one of a 3G network and a 2G network.
Optionally, as shown in fig. 2, an embodiment of the present invention provides a voice call method, further including:
s104, when the UE determines to register the IMS network, after receiving a voice call request input by a voice dialing interface, initiating the voice call request through the network of the first network system.
Optionally, as shown in fig. 3-a and fig. 3-b, an embodiment of the present invention provides a voice call method, where the service category included in the voice call request at least includes one or more of the following: 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service.
S104, when UE determines to register IMS network, after receiving voice call request input by voice dialing interface, initiating voice call request through network of first network type, including:
s1040, when the UE determines to register the IMS network and the first network type is the 4G network, after receiving a voice call request input by a voice dialing interface, the UE initiates the 4G VoLTE voice service through the network of the first network type.
S1041, when the UE determines to register the IMS network and the first network type is 5G network, after receiving the voice call request input by the voice dialing interface, the UE initiates 5G VoNR voice service or EPS Fallback voice service through the network of the first network type.
S103, when the UE determines that the network with the second network type exists, after receiving the voice call request input by the voice dialing interface, the UE initiates the voice call request through the network with the second network type.
It should be noted that, in practical applications, when the UE determines that the network of the second network type exists, after receiving the voice call request input by the voice dialing interface, and when initiating the voice call request through the network of the second network type, if the network of the second network type includes the 3G network and the 2G network, the UE preferentially initiates the voice call request through the 3G network, and if the network of the second network type does not exist, the UE initiates the voice call request through the 2G network.
Optionally, as shown in fig. 4, an embodiment of the present invention provides a voice call method, further including:
s105, when the UE determines that the network of the second network type does not exist, the voice call request is prompted to be incapable of responding.
According to the scheme, when the UE is accessed to the base station through the network of the first network system, when the voice dialing interface is started, the user needs to call the voice, and the voice call request of the 5G network or the 4G network needs to be based on the IMS network; therefore, at this time, the UE determines whether to register the IMS network, and when it is determined that the IMS network is not registered, it indicates that the 5G network or the 4G network cannot carry the voice service; at this time, the UE is required to determine whether a network of the second network type exists, when it is determined that the network of the second network type exists, after receiving a voice call request input by the voice dialing interface, the UE initiates the voice call request through the network of the second network type, and when it is not determined that the IMS network exists, the UE is not required to determine whether the UE can fall back to the 3G network or the 2G network, and if so, the AS instructs the UE to switch to the 3G network or the 2G network to re-initiate the voice service requested by the user, thereby shortening the voice dialing access delay when the user uses the UE to perform the voice call, improving the user experience, and solving the problem that the voice dialing access delay of the voice service requested by the user is long when the CSFB scheme of the 4G network is adopted to provide the voice service without the IMS network in the prior art.
Embodiment two, an embodiment of the present invention provides a UE10, as shown in fig. 6, including:
the processing module 103 is configured to, when accessing the base station through the network of the first network type, open a voice dialing interface and determine whether to register the IMS network; the network of the first network system includes at least any one of a 5G network and a 4G network.
The searching module 102 is further configured to search whether a network of a second network type exists when the processing module 103 determines that the IMS network is not registered; the second network system at least comprises any one of a 3G network and a 2G network.
The processing module 103 is further configured to, when the searching module 102 determines that a network of the second network type exists, initiate a voice call request through the network of the second network type after the receiving module 101 receives the voice call request input through the voice dialing interface.
Optionally, the processing module is further configured to initiate the voice call request through the network of the first network type after the receiving module receives the voice call request input by the voice dialing interface when determining to register the IMS network.
Optionally, the service category included in the voice call request at least includes one or more of the following items: 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service; the processing module 103 is specifically configured to, when it is determined that the IMS network is registered and the first network type is the 4G network, initiate a 4G VoLTE voice service through the network of the first network type after the receiving module 101 receives the voice call request input through the voice dialing interface.
The processing module 103 is specifically configured to, when it is determined that the IMS network is registered and the first network type is a 5G network, initiate a 5G VoNR voice service or an EPS Fallback voice service through the network of the first network type after the receiving module 101 receives the voice call request input by the voice dialing interface.
Optionally, the processing module 103 is further configured to prompt that the voice call request cannot be responded when the searching module 102 determines that the network of the second network type does not exist.
According to the scheme, when the UE is accessed to the base station through the network of the first network system, when the voice dialing interface is started, the user needs to call the voice, and the voice call request of the 5G network or the 4G network needs to be based on the IMS network; therefore, at this time, the UE determines whether to register the IMS network, and when it is determined that the IMS network is not registered, it indicates that the 5G network or the 4G network cannot carry the voice service; at this time, the UE is required to determine whether a network of the second network type exists, when it is determined that the network of the second network type exists, after receiving a voice call request input by the voice dialing interface, the UE initiates the voice call request through the network of the second network type, and when it is not determined that the IMS network exists, the UE is not required to determine whether the UE can fall back to the 3G network or the 2G network, and if so, the AS instructs the UE to switch to the 3G network or the 2G network to re-initiate the voice service requested by the user, thereby shortening the voice dialing access delay when the user uses the UE to perform the voice call, improving the user experience, and solving the problem that the voice dialing access delay of the voice service requested by the user is long when the CSFB scheme of the 4G network is adopted to provide the voice service without the IMS network in the prior art.
In a third embodiment, an embodiment of the present invention provides a network system, which includes any UE as provided in the second aspect, a base station, a core network, and an IMS. For the specific UE10, reference may be made to the related description in the second embodiment of the apparatus, which is not described herein again.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (7)

1. A voice call method, comprising:
when the UE accesses the base station through the network of the first network type, a voice dialing interface is started and whether an IMS network is registered or not is judged; the network of the first network system at least comprises any one of a 5G network and a 4G network;
when the UE determines that the IMS network is not registered, the UE searches whether a network with a second network type exists; the second network standard at least comprises any one of a 3G network and a 2G network;
when the UE determines that a network with a second network type exists, after a voice call request input by the voice dialing interface is received, the voice call request is initiated through the network with the second network type;
the service category included in the voice call request includes at least one or more of the following: 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service;
when the UE determines to register the IMS network, after receiving a voice call request input by the voice dialing interface, the UE initiates the voice call request through the network of the first network type, and the method comprises the following steps:
when the UE determines to register an IMS network and the first network type is a 4G network, after receiving a voice call request input by the voice dialing interface, initiating the 4G VoLTE voice service through the network of the first network type;
and when the UE determines to register an IMS network and the first network type is a 5G network, after receiving a voice call request input by the voice dialing interface, initiating the 5G VoNR voice service or the EPS Fallback voice service through the network of the first network type.
2. The voice call method according to claim 1, wherein the method further comprises:
and when the UE determines to register the IMS network, after receiving a voice call request input by the voice dialing interface, initiating the voice call request through the network of the first network system.
3. The voice call method according to claim 1, wherein the method further comprises:
and when the UE determines that the network with the second network type does not exist, prompting that the voice call request cannot be responded.
4. A UE, comprising:
the processing module is used for starting a voice dialing interface and judging whether to register an IMS network or not when the base station is accessed through the network of the first network type; the network of the first network system at least comprises any one of a 5G network and a 4G network;
the searching module is also used for searching whether a network with a second network type exists or not when the processing module determines that the IMS network is not registered; the second network standard at least comprises any one of a 3G network and a 2G network;
the processing module is further configured to, when the search module determines that a network of a second network type exists, initiate a voice call request through the network of the second network type after the receiving module receives the voice call request input by the voice dialing interface;
the service category included in the voice call request includes at least one or more of the following: 4G VoLTE voice service, 5G VoNR voice service and EPS Fallback voice service;
the processing module is specifically configured to, when it is determined that an IMS network is registered and the first network type is a 4G network, initiate the 4G VoLTE voice service through the network of the first network type after the receiving module receives a voice call request input by the voice dialing interface;
the processing module is specifically configured to, when it is determined that an IMS network is registered and the first network type is a 5G network, initiate the 5G VoNR voice service or the EPS Fallback voice service through the network of the first network type after the receiving module receives the voice call request input by the voice dialing interface.
5. The UE of claim 4, wherein the processing module is further configured to initiate the voice call request through the network of the first network system after the receiving module receives the voice call request input by the voice dialing interface when determining to register the IMS network.
6. The UE of claim 4, wherein the processing module is further configured to prompt the voice call request to fail to respond when the searching module determines that the network of the second network standard does not exist.
7. A network system comprising the UE of any of claims 4-6, a base station, a core network and an IMS.
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