WO2019136821A1

WO2019136821A1 - Network selection method and apparatus of terminal, computer device, and storage medium

Info

Publication number: WO2019136821A1
Application number: PCT/CN2018/079156
Authority: WO
Inventors: 唐海
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-01-12
Filing date: 2018-03-15
Publication date: 2019-07-18
Also published as: WO2019136685A1; CN110710266A

Abstract

Disclosed are a network selection method and apparatus of a terminal, a computer device, and a storage medium. The terminal may send fallback capability indication information to a network side in a process of registration or send mode information to the network side, and obtain indication information returned by the network side, the indication information at least comprising information indicating whether the network side supports a voice service, so that network selection may be performed according to the indication information, and the normal operation of the voice service may be ensured as much as possible.

Description

Method, device, computer device and storage medium for terminal to perform network selection

This application claims the priority of the PCT patent application with the international filing date of January 12, 2018, the international application number PCT/CN2018/072382, and the invention titled "Method, device, computer equipment and storage medium for terminal network selection". right.

Technical field

The present invention relates to network technologies, and in particular, to a method, an apparatus, a computer device, and a storage medium for a terminal to perform network selection.

Background technique

When the terminal (UE) is attached to the 5G network, if the voice service needs to be performed, the fallback process may be performed to fall back to the 4G network.

Figure 1 is a schematic diagram of a conventional fallback process. As shown in FIG. 1, when the condition 1a or 1b is satisfied, that is, when the terminal receives a voice call or needs to initiate a voice call, it can fall back to the 4G network by sending a Service Request message.

However, the fallback capability of the terminal is optional, that is, some terminals support the fallback capability, and some terminals do not support the fallback capability. Then, when the terminal does not support the fallback capability, if the network side does not support 5G voice. If the service (Voice over 5G) does not support the active triggering fallback capability, the terminal attached to the 5G network cannot perform voice services. In response to this problem, there is no effective solution in the prior art.

Summary of the invention

In view of this, the present invention provides a method, an apparatus, a computer device, and a storage medium for performing network selection by a terminal, which can ensure the normal operation of the voice service as much as possible.

The specific technical solutions are as follows:

A method for a terminal to perform network selection, including:

The terminal sends the drop capability indication information of the terminal to the network side during the registration process to the network side;

The terminal acquires the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.

A method for a terminal to perform network selection, including:

During the registration process with the network side, the terminal sends the mode information of the terminal to the network side;

A method for a terminal to perform network selection, including:

During the registration process, the network side obtains the drop capability indication information sent by the terminal;

The network side returns the indication information to the terminal, where the indication information includes at least information about whether the network side supports the voice service, so that the terminal performs network selection according to the indication information.

A method for a terminal to perform network selection, including:

During the registration process, the network side acquires the mode information sent by the terminal;

A terminal device includes: a first sending unit and a first selecting unit;

The first sending unit is configured to send the drop capability indication information of the terminal to the network side during the registration process to the network side;

The first selecting unit is configured to obtain the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.

A terminal device includes: a second sending unit and a second selecting unit;

The second sending unit is configured to send the mode information of the terminal to the network side during the registration process of the terminal to the network side;

The second selecting unit is configured to obtain the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.

A network side device includes: a first acquiring unit and a first indicating unit;

The first obtaining unit is configured to acquire, according to the registration process, the drop capability indication information sent by the terminal;

The first indication unit is configured to return indication information to the terminal, where the indication information includes at least information about whether the network side supports voice service, so that the terminal performs network selection according to the indication information.

A network side device includes: a second acquiring unit and a second indicating unit;

The second obtaining unit is configured to acquire the mode information sent by the terminal during the registration process;

The second indication unit is configured to return the indication information to the terminal, where the indication information includes at least information about whether the network side supports the voice service, so that the terminal performs network selection according to the indication information.

A computer apparatus comprising a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor implementing the method as described above.

A computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements a method as described above.

Based on the foregoing description, it can be seen that, by using the solution of the present invention, the terminal may send the drop capability indication information to the network side during the registration process, or send the mode information to the network side, and obtain the indication information returned by the network side, where At least the information about whether the network side supports the voice service is included, and the network selection can be performed according to the indication information, so as to ensure the normal operation of the voice service as much as possible.

DRAWINGS

Figure 1 is a schematic diagram of a conventional fallback process.

2 is a flow chart of a first embodiment of a method for a terminal to perform network selection according to the present invention.

FIG. 3 is a flowchart of a second embodiment of a method for performing network selection by a terminal according to the present invention.

4 is a flow chart of a third embodiment of a method for a terminal to perform network selection according to the present invention.

FIG. 5 is a flowchart of a fourth embodiment of a method for a terminal to perform network selection according to the present invention.

FIG. 6 is a schematic structural diagram of a first embodiment of a terminal device according to the present invention.

FIG. 7 is a schematic structural diagram of a second embodiment of a terminal device according to the present invention.

FIG. 8 is a schematic structural diagram of a first embodiment of a network side device according to the present invention.

FIG. 9 is a schematic structural diagram of a second embodiment of a network side device according to the present invention.

FIG. 10 illustrates a block diagram of an exemplary computer system/server 12 suitable for use in implementing embodiments of the present invention.

Detailed ways

In order to make the technical solutions of the present invention clearer and clearer, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

It is apparent that the described embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

2 is a flow chart of a first embodiment of a method for a terminal to perform network selection according to the present invention. As shown in FIG. 2, the following specific implementation manners are included.

In 201, the terminal sends the terminal's fallback capability indication information to the network side during the registration process to the network side.

In 202, the terminal acquires the indication information returned by the network side, where at least the information about whether the network side supports the voice service is included, and the network selection is performed according to the indication information.

During the process of registering with the network side, the terminal may carry the drop-off capability indication information of the terminal in the sent registration request, that is, the network-side terminal is required to support the fallback capability, and the specific format of the fallback capability indication information is not limited.

After the network side obtains the drop-off capability indication information of the terminal, the network may return the corresponding indication information to the terminal according to whether the voice service is supported by the network, and the indication information may be carried in the registration reply message returned by the network to the terminal.

The terminal acquires the indication information returned by the network side, and can perform network selection by using the obtained indication information.

The specific implementation can be as follows:

1) If the terminal does not support the fallback capability and the network side does not support the voice service, the terminal obtains the indication information of the voice service that is not supported by the network side; if the terminal is in the voice centric mode, the terminal selects the domain through the domain. The second network is attached, and the second network supports the voice service; if the terminal is in the data centric mode, the terminal remains in the first network where it is currently located.

For example, the first network is a 5G network, and the second network is a 4G network.

After the network side obtains the drop capability indication information of the terminal, if it is determined that the terminal does not support the fallback capability, and the network side does not support the voice service, the registration reply message returned to the terminal may carry the indication that the voice over PS session is not supported. Instructions.

After the terminal obtains the indication information on the network side, different operations may be performed based on the mode in which the terminal is located. For example, if the terminal is in the voice-centric mode, the domain can be selected to be attached to the 4G network. When the voice service needs to be performed, the terminal can be directly executed on the 4G network. If the terminal is in the data-centric mode, the terminal can remain at the current state. The 5G network in which it resides is processed in the existing way, and the domain is not selected to other networks.

2) If the terminal supports the fallback capability and the network side does not support the voice service, the terminal acquires the indication information and the fallback indication information of the voice service that is not supported by the network side; the terminal remains in the first network where the current network is located, and the voice service needs to be performed. When it falls back to the second network, the second network supports the voice service.

After the network side obtains the drop-off capability indication information of the terminal, if it is determined that the terminal supports the fallback capability, and the network side does not support the voice service, the indication that does not support the “Voice over PS Session” may be carried in the registration reply message returned to the terminal. The information may carry the fallback indication information at the same time, so that the terminal performs the fallback process when the voice service needs to be performed.

After receiving the indication information on the network side, the terminal can still remain in the current 5G network. When the voice service needs to be executed, the terminal will fall back to the 4G network.

3) If the network side supports the voice service, the terminal obtains the indication information of the voice service that is returned by the network side; the terminal remains in the first network where the terminal is currently located, and when the voice service needs to be performed, the voice service is performed on the first network.

After the network side obtains the drop-off capability indication information of the terminal, whether the terminal supports the drop-off capability, if the network side supports the voice service, the indication message supporting the “Voice over PS Session” may be carried in the registration reply message returned to the terminal.

After obtaining the indication information on the network side, the terminal can still be maintained on the current 5G network. When the voice service needs to be executed, the terminal can directly perform the operation on the 5G network.

4) If the terminal supports the fallback capability and the network side supports the voice service, the terminal obtains the indication information and the fallback indication information of the voice service that is not supported by the network side; the terminal remains in the first network where the current network is located, and when the voice service needs to be performed, Fall back to the second network, the second network supports voice services.

After the network side obtains the drop-off capability indication information of the terminal, it determines that the terminal supports the fallback capability. Although the network side supports the voice service, the device can still carry the indication in the registration reply message returned to the terminal, taking into account the load situation, the user priority, and the like. The indication information of the "Voice over PS Session" is not supported, and the fallback indication information may be carried at the same time, so that the terminal performs the fallback process when the voice service needs to be performed.

In the above implementation manners, if the terminal supports the fallback capability, the fallback capability indication information may include the following 1) or 2):

1) The terminal supports the RRC (Radio Resource Control) redirection to fall back to the second network, such as the 4G network, and can initiate a connection establishment that ensures the continuity of the IP continuity;

Specifically, in order to support the inclusion of a Handover identifier in the Attach request message, the network side can correctly select the IP address that keeps the newly established connection on the original gateway and the IP address connected to the original network. ;

2) The terminal supports the initiative to initiate a service request (Service Request) message request to fall back.

In addition, the reason why the network side does not support "Voice over PS Session" may include:

The network side does not support the handover process based on the N26 interface of the system, and the indication of the fallback capability reported by the terminal indicates that the terminal does not support the connection establishment that ensures the continuity of the IP continuity after the RRC redirection is dropped back to the 4G network.

Alternatively, the network side does not support the handover process based on the N26 interface of the system, and does not support the process of “establishing a connection establishment with the same IP continuity after the RRC redirection falls back to the 4G network”.

FIG. 3 is a flowchart of a second embodiment of a method for performing network selection by a terminal according to the present invention. As shown in FIG. 3, the following specific implementation manners are included.

In 301, the terminal sends the mode information of the terminal to the network side during the registration process to the network side.

In 302, the terminal acquires the indication information returned by the network side, where at least the information about whether the network side supports the voice service is included, and the network selection is performed according to the indication information.

In the embodiment shown in FIG. 2, the terminal may carry the drop-down capability indication information of the terminal in the registration request, and the terminal may not carry the fallback capability indication information in the registration request. The mode information of the terminal may be sent to the network side, and the subsequent network side may also carry the indication information in the registration reply message returned to the terminal, so that the terminal performs network selection according to the obtained indication information.

The specific implementation can be as follows:

1) If the terminal is in the voice-centric mode and the network side does not support the voice service, the terminal acquires the indication information and the fallback indication information of the voice service that is not supported by the network side; if the terminal does not support the fallback capability, the terminal selects the second through the domain. The network is attached, and the second network supports the voice service. If the terminal supports the fallback capability, the terminal remains in the first network where it is currently located. When the voice service needs to be performed, the terminal falls back to the second network.

After the network side obtains the drop-off capability indication information of the terminal, if it is determined that the terminal is in the voice-centric mode, and the network side does not support the voice service, the registration reply message returned to the terminal may carry the indication that "Voice over PS Session" is not supported. The indication information may also carry the fallback indication information, so that the terminal performs the fallback process when the voice service needs to be performed.

After obtaining the indication information on the network side, the terminal may perform different operations based on whether it supports the fallback capability. For example, if the terminal does not support the fallback capability, then the domain can be selected to be attached to the 4G network. When the voice service needs to be executed, it is directly executed on the 4G network. If the terminal supports the fallback capability, the terminal can remain in the current 5G network. When the voice service needs to be executed, it will fall back to the 4G network.

2) If the terminal is in the voice-centric mode and the network side supports the voice service, the terminal acquires the indication information of the voice service that is returned by the network side; the terminal remains in the first network where the current network is located, and when the voice service needs to be performed, A network performs voice services.

After the network side obtains the drop-off capability indication information of the terminal, if it is determined that the terminal is in the voice-centric mode, and the network side supports the voice service, the indication that supports the “Voice over PS Session” may be carried in the registration reply message returned to the terminal. information.

3) If the terminal is in data-centric mode, the terminal remains in the first network where it is currently located.

If the terminal is in the data-centric mode, the network side can perform the registration process normally, without considering the voice service support problem, so that the terminal remains in the current 5G network.

4 is a flow chart of a third embodiment of a method for a terminal to perform network selection according to the present invention. As shown in FIG. 4, the following specific implementation manners are included.

In 401, during the registration process, the network side acquires the fallback capability indication information sent by the terminal.

In 402, the network side returns indication information to the terminal, where at least information about whether the network side supports the voice service is included, so that the terminal performs network selection according to the indication information.

During the process of registering with the network side, the terminal may carry the drop-off capability indication information of the terminal in the sent registration request, that is, tell the network-side terminal whether the support-down capability is supported. After the network side obtains the drop-off capability indication information of the terminal, the network may return the corresponding indication information to the terminal according to whether the voice service is supported by the terminal, so that the terminal performs network selection according to the indication information, and the indication information may be carried in the network side to return the registration to the terminal. Reply to the message.

The specific implementation can be as follows:

1) If the terminal does not support the fallback capability and the network side does not support the voice service, the network side returns the indication information that does not support the voice service, so that when the terminal is in the voice-centric mode, the domain is selected to be attached to the second network. The second network supports voice services. When in the data-centric mode, the terminal remains in the first network where it is currently located.

After the terminal obtains the indication information on the network side, different operations may be performed based on the mode in which the terminal is located. For example, if the terminal is in the voice-centric mode, then the domain can be selected to be attached to the 4G network. When the voice service needs to be executed, it is directly executed on the 4G network. If the terminal is in the data-centric mode, the terminal can remain at the current location. The 5G network is processed in the existing way, and the domain is not selected to other networks.

2) If the terminal supports the fallback capability and the network side does not support the voice service, the network side returns the indication information that does not support the voice service and the fallback indication information, so that the terminal remains in the current first network, and when it needs to be executed During the voice service, it falls back to the second network, and the second network supports the voice service.

After receiving the indication information on the network side, the terminal can still remain in the current 5G network. When the voice service needs to be executed, the terminal can fall back to the 4G network.

3) If the network side supports the voice service, the network side returns the indication information supporting the voice service to the terminal, so that the terminal remains in the first network that is currently located, and performs voice service on the first network when the voice service needs to be performed. .

After the network side obtains the drop-off capability indication information of the terminal, whether the terminal supports the drop-off capability, if the network side supports the voice service, the indication message supporting the “Voice over PS Session” may be carried in the registration reply message returned to the terminal. .

4) If the terminal supports the fallback capability and the network side supports the voice service, the network side returns the indication information that does not support the voice service and the fallback indication information, so that the terminal remains in the first network where the current is located, when the voice service needs to be performed. , back to the second network, the second network supports voice services.

1) The terminal supports the connection establishment that ensures the continuity of the IP continuity after the RRC redirection falls back to the second network, such as the 4G network;

Specifically, in order to support the inclusion of the Handover identifier in the Attach request message, the network side can correctly select the IP address that keeps the newly established connection on the original joint gateway and the IP address connected in the original network unchanged;

2) The terminal supports the initiative to initiate a Service Request message request to fall back.

FIG. 5 is a flowchart of a fourth embodiment of a method for a terminal to perform network selection according to the present invention. As shown in FIG. 5, the following specific implementation manners are included.

In 501, during the registration process, the network side acquires the mode information sent by the terminal.

In 502, the network side returns indication information to the terminal, where at least the network side supports information about whether the voice service is supported, so that the terminal performs network selection according to the indication information.

The specific implementation can be as follows:

1) If the terminal is in the voice-centric mode and the network side does not support the voice service, the network side returns the indication information that does not support the voice service and the fallback indication information, so that the terminal selects the second through the domain when the terminal does not support the fallback capability. The network is attached, and the second network supports the voice service. When the fallback capability is supported, the second network is still in the first network. When the voice service needs to be performed, the network is dropped back to the second network.

After obtaining the indication information on the network side, the terminal may perform different operations based on whether it supports the fallback capability. For example, if the terminal does not support the fallback capability, then the domain can be selected to be attached to the 4G network. When the voice service needs to be executed, it can be directly executed on the 4G network. If the terminal supports the fallback capability, the terminal can still remain at the current 5G. The network, when it needs to perform voice services, can fall back to the 4G network.

2) If the terminal is in the voice-centric mode and the network side supports the voice service, the network side returns the indication information supporting the voice service to the terminal, so that the terminal remains in the first network that is currently located, and when the voice service needs to be performed, The voice service is performed on the first network.

3) If the terminal is in the data-centric mode, the network side does not return indication information to the terminal, so that the terminal remains in the first network where it is currently located.

The voice service described in the foregoing embodiments may refer to a common service. For example, the terminal performs a normal voice service by performing a fallback process, and may also refer to an emergency service. For example, the terminal establishes an emergency on the dropped network by performing a fallback process. Business sessions, etc.

The above is a description of the method embodiment, and the solution of the present invention will be further described below by means of the device embodiment.

FIG. 6 is a schematic structural diagram of a first embodiment of a terminal device according to the present invention. As shown in FIG. 6, the method includes: a first sending unit 601 and a first selecting unit 602.

The first sending unit 601 is configured to send the drop capability indication information of the terminal to the network side during the registration process to the network side.

The first selecting unit 602 is configured to obtain the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.

The first sending unit 601 may send the fallback capability indication information to the network side in the registration request, and the first selecting unit 602 may obtain the indication information that the network side carries in the returned registration reply message.

Specifically, if the terminal does not support the fallback capability and the network side does not support the voice service, the first selection unit 602 may obtain the indication information of the voice service that is not supported by the network side, such as indicating that the voice over PS session is not supported. If the terminal is in the voice-centric mode, the first selection unit 602 may select to connect to the second network through the domain, and the second network supports the voice service; if the terminal is in the data-centric mode, the first selection unit 602 may remain in the The first network where it is currently located.

If the terminal supports the fallback capability and the network side does not support the voice service, the first selection unit 602 may obtain the indication information of the unsupported voice service returned by the network side and the fallback indication information; the first selection unit 602 may still remain at the current location. A network, when it is required to perform voice services, falls back to the second network, and the second network supports voice services.

If the network side supports the voice service, the first selection unit 602 can obtain the indication information of the voice service that is returned by the network side; the first selection unit 602 can still remain in the first network where the current network is located, and when the voice service needs to be performed, The first network performs voice services.

If the terminal supports the fallback capability and the network side supports the voice service, the first selecting unit 602 may obtain the indication information of the unsupported voice service returned by the network side and the fallback indication information; the first selecting unit 602 may still remain in the first network where the current network is located. When the voice service needs to be executed, it falls back to the second network, and the second network supports the voice service.

If the terminal supports the fallback capability, the fallback capability indication information may include the following 1) or 2):

FIG. 7 is a schematic structural diagram of a second embodiment of a terminal device according to the present invention. As shown in FIG. 7, the second transmitting unit 701 and the second selecting unit 702 are included.

The second sending unit 701 is configured to send the mode information of the terminal to the network side during the registration process of the terminal to the network side.

The second selecting unit 702 is configured to obtain the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.

The second selecting unit 702 can obtain the indication information that the network side carries in the returned registration reply message.

If the terminal is in the voice-centric mode and the network side does not support the voice service, the second selection unit 702 may obtain the indication information that the network side does not support the voice service and the fallback indication information; if the terminal does not support the fallback capability, the second selection The unit 702 can select to connect to the second network through the domain, and the second network supports the voice service. If the terminal supports the fallback capability, the second selection unit 702 can still remain in the first network where the current network is located. Go to the second network.

If the terminal is in the voice-centric mode and the network side supports the voice service, the second selection unit 702 can obtain the indication information of the voice service returned by the network side; the second selection unit 702 can still remain in the first network where the current network is located. When the voice service needs to be performed, the voice service is performed on the first network.

The second selection unit 702 is further configured to remain in the first network currently located if the terminal is in the data-centric mode.

FIG. 8 is a schematic structural diagram of a first embodiment of a network side device according to the present invention. As shown in FIG. 8 , the first acquiring unit 801 and the first indicating unit 802 are included.

The first obtaining unit 801 is configured to acquire the fallback capability indication information sent by the terminal during the registration process.

The first indication unit 802 is configured to return indication information to the terminal, where the indication information includes at least information about whether the network side supports the voice service, so that the terminal performs network selection according to the indication information.

The first obtaining unit 801 may obtain the fallback capability indication information that the terminal carries in the sent registration request, and the first indication unit 802 may carry the indication information in the registration reply message and return the information to the terminal.

If the terminal does not support the fallback capability and the network side does not support the voice service, the first indication unit 802 may return the indication information that does not support the voice service to the terminal, such as indicating that the "Voice over PS Session" is not supported, so that the terminal is in the terminal. When the voice is in the center mode, the second network is attached through the domain selection, and the second network supports the voice service. When the data is in the center mode, it remains in the first network where it is currently located.

If the terminal supports the fallback capability and the network side does not support the voice service, the first indication unit 802 may return the indication information that does not support the voice service and the fallback indication information to the terminal, so that the terminal remains in the first network that is currently located, and is in the When the voice service needs to be executed, it falls back to the second network, and the second network supports the voice service.

If the network side supports the voice service, the first indication unit 802 may return the indication information supporting the voice service to the terminal, so that the terminal remains in the first network where the terminal is currently located, and performs the first network when the voice service needs to be performed. Voice business.

If the terminal supports the fallback capability and the network side supports the voice service, the first indication unit 802 may return the indication information that does not support the voice service and the fallback indication information to the terminal, so that the terminal remains in the first network where the current is located, when the voice needs to be performed. When the service is in business, it falls back to the second network, and the second network supports the voice service.

FIG. 9 is a schematic structural diagram of a second embodiment of a network side device according to the present invention. As shown in FIG. 9, the second obtaining unit 901 and the second indicating unit 902 are included.

The second obtaining unit 901 is configured to acquire the mode information sent by the terminal during the registration process.

The second indication unit 902 is configured to return the indication information to the terminal, where the indication information includes at least information about whether the network side supports the voice service, so that the terminal performs network selection according to the indication information.

The second indication unit 902 can carry the indication information in the registration reply message and return it to the terminal.

If the terminal is in the voice-centric mode and the network side does not support the voice service, the second indication unit 902 may return the indication information that does not support the voice service and the fallback indication information to the terminal, so that the terminal selects through the domain when the drop capability is not supported. The second network is attached, and the second network supports the voice service. When the fallback capability is supported, the terminal remains in the first network where it is currently located. When the voice service needs to be performed, it falls back to the second network.

If the terminal is in the voice-centric mode and the network side supports the voice service, the second indication unit 902 can return the indication information supporting the voice service to the terminal, so that the terminal remains in the first network that is currently located, and when the voice service needs to be performed. At the time, the voice service is performed on the first network.

The second indication unit 902 is further configured to: if the terminal is in the data-centric mode, return no indication information to the terminal, so that the terminal remains in the first network where the terminal is currently located.

For the specific working process of the foregoing device embodiments, refer to the corresponding description in the foregoing method embodiments, and no further details are provided.

FIG. 10 illustrates a block diagram of an exemplary computer system/server 12 suitable for use in implementing embodiments of the present invention. The computer system/server 12 shown in FIG. 10 is merely an example and should not impose any limitation on the function and scope of use of the embodiments of the present invention.

As shown in Figure 10, computer system/server 12 is embodied in the form of a general purpose computing device. The components of computer system/server 12 may include, but are not limited to, one or more processors (processing units) 16, memory 28, and a bus 18 that connects different system components, including memory 28 and processor 16.

Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA Bus, a Video Electronics Standards Association (VESA) local bus, and peripheral component interconnects ( PCI) bus.

Computer system/server 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer system/server 12, including both volatile and non-volatile media, removable and non-removable media.

Memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and/or cache memory 32. Computer system/server 12 may further include other removable/non-removable, volatile/non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (not shown in FIG. 10, commonly referred to as a "hard disk drive"). Although not shown in FIG. 10, a disk drive for reading and writing to a removable non-volatile disk (such as a "floppy disk"), and a removable non-volatile disk (such as a CD-ROM, DVD-ROM) may be provided. Or other optical media) read and write optical drive. In these cases, each drive can be coupled to bus 18 via one or more data medium interfaces. Memory 28 can include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of various embodiments of the present invention.

A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more applications, other programs Modules and program data, each of these examples or some combination may include an implementation of a network environment. Program module 42 typically performs the functions and/or methods of the described embodiments of the present invention.

Computer system/server 12 may also be in communication with one or more external devices 14 (e.g., a keyboard, pointing device, display 24, etc.), and may also be in communication with one or more devices that enable a user to interact with the computer system/server 12. And/or in communication with any device (e.g., network card, modem, etc.) that enables the computer system/server 12 to communicate with one or more other computing devices. This communication can take place via an input/output (I/O) interface 22. Also, computer system/server 12 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through network adapter 20. As shown in FIG. 10, network adapter 20 communicates with other modules of computer system/server 12 via bus 18. It should be understood that although not shown in the figures, other hardware and/or software modules may be utilized in conjunction with computer system/server 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, Tape drives and data backup storage systems.

The processor 16 executes various functional applications and data processing by running programs stored in the memory 28, such as implementing the methods of Figures 2, 3, 4 or 5.

The present invention also discloses a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the method of Figures 2, 3, 4 or 5.

Any combination of one or more computer readable media can be utilized. The computer readable medium can be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive lists) of computer readable storage media include: electrical connections having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read only memory (ROM), Erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium can be any tangible medium that can contain or store a program, which can be used by or in connection with an instruction execution system, apparatus or device.

A computer readable signal medium may include a data signal that is propagated in the baseband or as part of a carrier, carrying computer readable program code. Such propagated data signals can take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. The computer readable signal medium can also be any computer readable medium other than a computer readable storage medium, which can transmit, propagate, or transport a program for use by or in connection with the instruction execution system, apparatus, or device. .

Program code embodied on a computer readable medium can be transmitted by any suitable medium, including but not limited to wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations of the present invention may be written in one or more programming languages, or combinations thereof, including an object oriented programming language such as Java, Smalltalk, C++, and conventional procedural Programming language—such as the "C" language or a similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer, partly on the remote computer, or entirely on the remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (eg, using an Internet service provider) Internet connection).

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method and the like may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division, and the actual implementation may have another division manner.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a removable hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are made within the spirit and principles of the present invention, should be included in the present invention. Within the scope of protection.

Claims

A method for a terminal to perform network selection, comprising:

The terminal sends the drop capability indication information of the terminal to the network side during the registration process to the network side;

The terminal acquires the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.
The method of claim 1 wherein

The sending the drop capability indication information of the terminal to the network side includes:

The terminal carries the fallback capability indication information in a registration request and sends the information to the network side;

The obtaining, by the terminal, the indication information returned by the network side includes:

The terminal acquires the indication information carried by the network side in the returned registration reply message.
The method of claim 1 wherein

The terminal acquires the indication information returned by the network side, and performing network selection according to the indication information includes:

If the terminal does not support the drop-off capability and the network side does not support the voice service, the terminal acquires indication information that is returned by the network side and does not support the voice service.

If the terminal is in a voice-centric mode, the terminal is selected to be attached to the second network by using a domain, and the second network supports the voice service;

If the terminal is in a data-centric mode, the terminal remains in the first network where it is currently located.
The method of claim 1 wherein

The terminal acquires the indication information returned by the network side, and performing network selection according to the indication information includes:

If the terminal supports the fallback capability and the network side does not support the voice service, the terminal acquires the indication information returned by the network side that does not support the voice service, and the fallback indication information;

The terminal is still in the first network where the terminal is located. When the voice service needs to be performed, the terminal falls back to the second network, and the second network supports the voice service.
The method of claim 1 wherein

The terminal acquires the indication information returned by the network side, and performing network selection according to the indication information includes:

If the network side supports the voice service, the terminal acquires indication information that is returned by the network side and supports the voice service;

The terminal is still in the first network where the terminal is currently located, and when the voice service needs to be performed, the voice service is performed on the first network.
The method of claim 1 wherein

The terminal acquires the indication information returned by the network side, and performing network selection according to the indication information includes:

If the terminal supports the fallback capability and the network side supports the voice service, the terminal acquires the indication information returned by the network side that does not support the voice service, and the fallback indication information;

The terminal is still in the first network where the terminal is located. When the voice service needs to be performed, the terminal falls back to the second network, and the second network supports the voice service.
The method of claim 1 wherein

If the terminal supports the fallback capability, the fallback capability indication information includes:

The terminal supports the connection establishment that ensures that the IP continuity is unchanged after the redirection of the radio resource control back to the second network;

And/or, the terminal supports the initiative to initiate a service request message request to fall back.
A method for a terminal to perform network selection, comprising:

During the registration process with the network side, the terminal sends the mode information of the terminal to the network side;

The terminal acquires the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.
The method of claim 8 wherein:

The obtaining, by the terminal, the indication information returned by the network side includes:

The terminal acquires the indication information carried by the network side in the returned registration reply message.
The method of claim 8 wherein:

The terminal acquires the indication information returned by the network side, and performing network selection according to the indication information includes:

If the terminal is in the voice-centric mode and the network side does not support the voice service, the terminal acquires the indication information returned by the network side that does not support the voice service, and the fallback indication information;

If the terminal does not support the fallback capability, the terminal is selected to be attached to the second network by using a domain, and the second network supports the voice service;

If the terminal supports the fallback capability, the terminal remains in the first network where it is currently located, and when the voice service needs to be executed, it falls back to the second network.
The method of claim 8 wherein:

The terminal acquires the indication information returned by the network side, and performing network selection according to the indication information includes:

If the terminal is in the voice-centric mode and the network side supports the voice service, the terminal acquires the indication information that is returned by the network side and supports the voice service;

The terminal is still in the first network where the terminal is currently located, and when the voice service needs to be performed, the voice service is performed on the first network.
The method of claim 8 wherein:

The method further includes:

If the terminal is in a data-centric mode, the terminal remains in the first network where it is currently located.
A method for a terminal to perform network selection, comprising:

During the registration process, the network side obtains the drop capability indication information sent by the terminal;

The network side returns the indication information to the terminal, where the indication information includes at least information about whether the network side supports the voice service, so that the terminal performs network selection according to the indication information.
The method of claim 13 wherein:

The network side acquiring the drop capability indication information sent by the terminal includes:

Receiving, by the network side, the fallback capability indication information in the sent registration request by the terminal;

Returning the indication information to the terminal by the network side includes:

The network side carries the indication information in a registration reply message and returns it to the terminal.
The method of claim 13 wherein:

The network side returns the indication information to the terminal, so that the terminal performs network selection according to the indication information, including:

If the terminal does not support the fallback capability and the network side does not support the voice service, the network side returns indication information that does not support the voice service to the terminal, so that when the terminal is in a voice-centric mode When the second network is attached by the domain selection, the second network supports the voice service, and when in the data-centric mode, the terminal remains in the first network where it is currently located.
The method of claim 13 wherein:

The network side returns the indication information to the terminal, so that the terminal performs network selection according to the indication information, including:

If the terminal supports the fallback capability and the network side does not support the voice service, the network side returns the indication information that does not support the voice service and the fallback indication information to the terminal, so that the terminal remains in the current location. The first network, and when it is required to perform the voice service, falls back to the second network, and the second network supports the voice service.
The method of claim 13 wherein:

The network side returns the indication information to the terminal, so that the terminal performs network selection according to the indication information, including:

If the network side supports the voice service, the network side returns the indication information supporting the voice service to the terminal, so that the terminal remains in the first network that is currently located, and when the voice needs to be performed The service performs the voice service on the first network.
The method of claim 13 wherein:

The network side returns the indication information to the terminal, so that the terminal performs network selection according to the indication information, including:

If the terminal supports the fallback capability and the network side supports the voice service, the network side returns the indication information that does not support the voice service and the fallback indication information to the terminal, so that the terminal remains in the current location. A network, when the voice service needs to be executed, falls back to the second network, and the second network supports the voice service.
The method of claim 13 wherein:

If the terminal supports the fallback capability, the fallback capability indication information includes:

The terminal supports the connection establishment that ensures that the IP continuity is unchanged after the redirection of the radio resource control back to the second network;

And/or, the terminal supports the initiative to initiate a service request message request to fall back.
A method for a terminal to perform network selection, comprising:

During the registration process, the network side acquires the mode information sent by the terminal;

The network side returns the indication information to the terminal, where the indication information includes at least information about whether the network side supports the voice service, so that the terminal performs network selection according to the indication information.
The method of claim 20 wherein:

Returning the indication information to the terminal by the network side includes:

The network side carries the indication information in a registration reply message and returns it to the terminal.
The method of claim 20 wherein:

The network side returns the indication information to the terminal, so that the terminal performs network selection according to the indication information, including:

If the terminal is in the voice-centric mode and the network side does not support the voice service, the network side returns the indication information that does not support the voice service and the fallback indication information to the terminal, so that the terminal does not support the fallback capability. The second network is connected to the second network by the domain, and the second network supports the voice service. When the fallback capability is supported, the terminal remains in the first network that is currently located. When the voice service needs to be performed, Fall back to the second network.
The method of claim 20 wherein:

The network side returns the indication information to the terminal, so that the terminal performs network selection according to the indication information, including:

If the terminal is in the voice-centric mode and the network side supports the voice service, the network side returns the indication information supporting the voice service to the terminal, so that the terminal remains in the first network that is currently located, and The voice service is performed on the first network when the voice service needs to be performed.
The method of claim 20 wherein:

The method further includes:

If the terminal is in the data-centric mode, the network side does not return the indication information to the terminal, so that the terminal remains in the first network where it is currently located.
A terminal device, comprising: a first sending unit and a first selecting unit;

The first sending unit is configured to send the drop capability indication information of the terminal to the network side during the registration process to the network side;

The first selecting unit is configured to obtain the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.
The terminal device according to claim 25, characterized in that

The first sending unit carries the fallback capability indication information in a registration request and sends the information to the network side;

The first selection unit acquires the indication information carried by the network side in the returned registration reply message.
The terminal device according to claim 25, characterized in that

If the terminal does not support the fallback capability and the network side does not support the voice service, the first selection unit acquires indication information that is returned by the network side and does not support the voice service.

If the terminal is in a voice-centric mode, the first selection unit is attached to the second network by using a domain, and the second network supports the voice service;

If the terminal is in a data-centric mode, the first selection unit remains in the first network where it is currently located.
The terminal device according to claim 25, characterized in that

If the terminal supports the fallback capability and the network side does not support the voice service, the first selection unit acquires the indication information returned by the network side that does not support the voice service, and the fallback indication information;

The first selection unit still remains in the first network where the current network is located. When the voice service needs to be performed, the first selection unit is returned to the second network, and the second network supports the voice service.
The terminal device according to claim 25, characterized in that

If the network side supports the voice service, the first selection unit acquires indication information that is returned by the network side and supports the voice service;

The first selection unit remains in the first network where the voice is currently located, and when the voice service needs to be performed, the voice service is performed on the first network.
The terminal device according to claim 25, characterized in that

If the terminal supports the fallback capability and the network side supports the voice service, the first selection unit acquires the indication information returned by the network side that does not support the voice service, and the fallback indication information;

The first selection unit still remains in the first network where the current network is located. When the voice service needs to be performed, the first selection unit is returned to the second network, and the second network supports the voice service.
The terminal device according to claim 25, characterized in that

If the terminal supports the fallback capability, the fallback capability indication information includes:

The terminal supports the connection establishment that ensures that the IP continuity is unchanged after the redirection of the radio resource control back to the second network;

And/or, the terminal supports the initiative to initiate a service request message request to fall back.
A terminal device, comprising: a second sending unit and a second selecting unit;

The second sending unit is configured to send the mode information of the terminal to the network side during the registration process of the terminal to the network side;

The second selecting unit is configured to obtain the indication information returned by the network side, where the indication information includes at least information about whether the network side supports the voice service, and performs network selection according to the indication information.
The terminal device according to claim 32, characterized in that

The second selection unit acquires the indication information carried by the network side in the returned registration reply message.
The terminal device according to claim 32, characterized in that

If the terminal is in the voice-centric mode and the network side does not support the voice service, the second selection unit acquires the indication information returned by the network side that does not support the voice service, and the fallback indication information;

If the terminal does not support the fallback capability, the second selection unit is attached to the second network by using a domain, and the second network supports the voice service;

If the terminal supports the fallback capability, the second selection unit remains in the first network where it is currently located, and when the voice service needs to be performed, falls back to the second network.
The terminal device according to claim 32, characterized in that

If the terminal is in the voice-centric mode and the network side supports the voice service, the second selection unit acquires the indication information that is returned by the network side and supports the voice service;

The second selection unit is still in the first network that is currently located, and when the voice service needs to be performed, the voice service is performed on the first network.
The terminal device according to claim 32, characterized in that

The second selecting unit is further configured to: if the terminal is in the data-centric mode, still remain in the first network where the terminal is currently located.
A network side device, comprising: a first acquiring unit and a first indicating unit;

The first obtaining unit is configured to acquire, according to the registration process, the drop capability indication information sent by the terminal;

The first indication unit is configured to return indication information to the terminal, where the indication information includes at least information about whether the network side supports voice service, so that the terminal performs network selection according to the indication information.
A network side device according to claim 37, wherein

The first obtaining unit acquires the falling capability indication information that the terminal carries in the sent registration request;

The first indication unit carries the indication information in a registration reply message and returns it to the terminal.
A network side device according to claim 37, wherein

If the terminal does not support the fallback capability and the network side does not support the voice service, the first indication unit returns indication information that does not support the voice service to the terminal, so that when the terminal is in voice In the central mode, the second network is attached to the second network, and the second network supports the voice service. When in the data-centric mode, the terminal remains in the first network where it is currently located.
A network side device according to claim 37, wherein

If the terminal supports the fallback capability and the network side does not support the voice service, the first indication unit returns indication information that does not support the voice service and fallback indication information to the terminal, so that the terminal remains in the terminal. The first network that is currently located, and when the voice service needs to be executed, falls back to the second network, and the second network supports the voice service.
The terminal device according to claim 37, characterized in that

If the network side supports the voice service, the first indication unit returns indication information supporting the voice service to the terminal, so that the terminal remains in the first network where it is currently located, and when it is needed to execute When the voice service is described, the voice service is performed on the first network.
A network side device according to claim 37, wherein

If the terminal supports the fallback capability and the network side supports the voice service, the first indication unit returns indication information that does not support the voice service and fallback indication information to the terminal, so that the terminal remains at the current The first network, when the voice service needs to be executed, falls back to the second network, and the second network supports the voice service.
A network side device according to claim 37, wherein

If the terminal supports the fallback capability, the fallback capability indication information includes:

The terminal supports the connection establishment that ensures that the IP continuity is unchanged after the redirection of the radio resource control back to the second network;

And/or, the terminal supports the initiative to initiate a service request message request to fall back.
A network side device, comprising: a second acquiring unit and a second indicating unit;

The second obtaining unit is configured to acquire the mode information sent by the terminal during the registration process;

The second indication unit is configured to return the indication information to the terminal, where the indication information includes at least information about whether the network side supports the voice service, so that the terminal performs network selection according to the indication information.
A network side device according to claim 44, wherein

The second indication unit carries the indication information in the registration reply message and returns it to the terminal.
A network side device according to claim 44, wherein

If the terminal is in the voice-centric mode and the network side does not support the voice service, the second indication unit returns the indication information that does not support the voice service and the fallback indication information to the terminal, so that the terminal does not support When the fallback capability is selected, the second network is attached to the second network, and the second network supports the voice service. When the fallback capability is supported, the terminal remains in the first network where the voice is currently located. When it falls back to the second network.
A network side device according to claim 44, wherein

If the terminal is in the voice-centric mode and the network side supports the voice service, the second indication unit returns the indication information supporting the voice service to the terminal, so that the terminal remains in the first network that is currently located. And performing the voice service on the first network when the voice service needs to be performed.
A network side device according to claim 44, wherein

The second indication unit is further configured to: if the terminal is in a data-centric mode, return the indication information to the terminal, so that the terminal remains in the first network where the terminal is currently located.
A computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor executes the program as claimed in claims 1-24 The method of any of the preceding claims.
A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the method of any one of claims 1-24.