WO2018032909A1

WO2018032909A1 - Method for selecting network slice and related device

Info

Publication number: WO2018032909A1
Application number: PCT/CN2017/092490
Authority: WO
Inventors: 王胡成
Original assignee: 电信科学技术研究院
Priority date: 2016-08-19
Filing date: 2017-07-11
Publication date: 2018-02-22
Also published as: CN107770826B; CN107770826A; TW201808031A; TWI641273B

Abstract

Disclosed are a method for selecting a network slice and a related device capable of solving a technical problem in which selection of a network slice cannot be made upon initiation of new request information by a terminal. The method comprises: a radio access network node receiving request information transmitted by a terminal; the radio access network node determining, according to the request information, a second shared control function of a second network slice to which the terminal is to be connected; and the radio access network node determining whether the second shared control function is identical to a first shared control function, the first shared control function being a shared control function selected by the terminal upon attachment to a first network slice.

Description

Network slice selection method and related equipment

The present application claims priority to Chinese Patent Application No. 201610698496.3, entitled "A Network Slice Selection Method and Related Equipment", filed on August 19, 2016, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a network slice selection method and related devices.

Background technique

Network slice introduction

In order to support diversified business needs, and to reduce the cost of network construction and operation, and to improve the flexibility of network management and the effectiveness of network resources, operators propose to use a "network slice" to support specific types in next-generation mobile communication networks. The communication service, the network function in each network slice is a combination of specific logical network functions for specific business needs. In the next-generation mobile communication network system, in order to enable one terminal user to acquire multiple services at the same time, different services of the user are allowed to access to different network fragments respectively.

At present, there are two main methods for selecting network slices:

When the user equipment (UE) registers with the network, the radio access network (RAN) selects the network slice according to the network slice selection auxiliary parameter provided by the UE;

2. When the UE registers with the network, the RAN selects the shared function module according to the identifier provided by the UE, and then the shared function module selects the network slice according to the slice selection auxiliary parameter provided by the terminal.

For the above two selection methods, the network slice selection performed when the terminal is attached to the network does not take into account the specific requirements of the terminal service. It can be seen that in the prior art, the terminal cannot perform the new request information when the terminal initiates the new request information. The technical problem of the selection of network slices.

Summary of the invention

The embodiment of the invention provides a network slice selection method and related device, which are used to solve the technical problem that the network slice cannot be selected when the terminal initiates new request information.

The specific technical solutions provided by the embodiments of the present invention are as follows:

In a first aspect, an embodiment of the present invention provides a network slice selection method, including:

The radio access network node receives the request information sent by the terminal;

Determining, by the radio access network node, a second sharing control function of the second network slice to which the terminal should be connected according to the request information;

The radio access network node determines whether the second sharing control function is the same as the first sharing control function; and the first sharing control function is a sharing control function selected when the terminal is attached to the first network slice. .

In a possible implementation, the request information includes at least one of the following: an attribute parameter of the terminal, identification information, and a non-access stratum request message.

In a possible implementation manner, if the second sharing control function is the same as the first sharing control function, the radio access network node sends the non-access stratum request message to the first sharing control function.

In a possible implementation manner, if the second sharing control function is different from the first sharing control function, the radio access network node sends the non-access stratum request message to the second sharing control function.

In a possible implementation manner, the non-access stratum request message includes at least one of the following:

Tracking area update request message, service request message, session connection request message;

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.

In a possible implementation manner, the radio access network node determines, according to the request information, a second sharing control function of the second network slice that the terminal should be connected to, including:

Determining, by the radio access network node, a network slice type used to serve the terminal according to the attribute parameter;

Determining, by the radio access network node, a second shared control function of the second network slice to which the terminal should be connected, according to the identifier information, or from a network slice of the type; or

Determining, by the radio access network node, the second sharing control function of the second network slice that the terminal should be connected according to the request information, including:

Determining, by the radio access network node, at least one sharing control function for serving the terminal according to the identifier information;

And determining, by the radio access network node, a second shared control function of the second network slice that should be connected to the terminal from the at least one shared control function according to the attribute parameter.

In a possible implementation, if the information is not the same, the radio access network node sends the non-access stratum request message to the second shared control function, including:

Sending, by the radio access network node, the shared control function identifier of the second shared control function and the non-access stratum request message to the first shared control function, so that the first shared control function is Transmitting/redirecting to the second shared control function, and forwarding the non-access stratum request message to the second shared control function; or

Transmitting, by the radio access network node, the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the request information carries a Non-access stratum request Message; or

Sending, by the radio access network node, the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, the non-access stratum request message And transmitting to the second shared control function through the signaling connection.

In a second aspect, an embodiment of the present invention provides a network slice selection method, including:

The radio access network node receives the request information sent by the first sharing function, where the request information includes: an attribute parameter, an identification information, and a non-access stratum request message of the terminal; the first sharing function is that the terminal is attached to the terminal. The shared control function selected when the first network is sliced;

Determining, according to the request, the second sharing control function of the second network slice to which the terminal should be connected, according to the request;

The radio access network node establishes a signaling connection with the second shared control function, and sends the request information to the second shared control function.

In a possible implementation manner, the radio access network node establishes a signaling connection with the second shared control function, and sends the requested information to the second shared control function, including:

In a third aspect, an embodiment of the present invention provides a network slice selection method, including:

The first sharing control function receives the request information sent by the terminal; the first sharing function is a sharing control function selected when the terminal is attached to the first network slice;

Determining, by the first sharing control function, whether the first network slice can provide a service for the terminal, based on the request information;

If not, the first shared control function triggers a network slice reselection process.

In a possible implementation, if not, the first sharing control function triggers a network slice reselection process, including:

Transmitting, by the first shared control function, a detach request to the terminal, to enable the terminal to reach a radio access network node Send a request to trigger a reselection of the network slice.

Determining, by the first sharing control function, a second sharing control function of the second network slice to which the terminal should be connected according to the attribute parameter and the identifier information;

The first sharing control function switches or redirects the terminal to the second sharing control function, and forwards the non-access stratum request message to the second sharing control function.

The first sharing control function sends the request information to a radio access network node to trigger reselection of a network slice.

In a fourth aspect, an embodiment of the present invention provides a network slice selection method, including:

Determining, by the terminal, the first radio access network network slice that the terminal should be connected according to the attribute parameter of the terminal;

Transmitting, by the terminal, request information to a first radio access network node corresponding to the first radio access network network slice; the request information includes identifier information of the terminal and a non-access stratum request message, so that Determining, by the first radio access network node, a first sharing control function of the first core network slice corresponding to the terminal according to the identifier information, and sending the non-access stratum request message to the first sharing control Features.

In a fifth aspect, an embodiment of the present invention provides a radio access network node, including:

a first receiving module, configured to receive request information sent by the terminal;

a first determining module, configured to determine, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected;

a second determining module, configured to determine whether the second sharing control function is the same as the first sharing control function; the first sharing control function is a shared control function selected when the terminal is attached to the first network slice;

In a possible implementation manner, the node further includes:

And a first sending module, configured to: if the second shared control function is the same as the first shared control function, the radio access network node sends the non-access stratum request message to the first shared control function.

In a possible implementation manner, the node further includes:

The second sending module is configured to: if the second sharing control function is different from the first sharing control function, the radio access network node sends the non-access stratum request message to the second sharing control function.

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.

In a possible implementation manner, the first determining module is configured to:

Determining, according to the attribute parameter, a network slice type used to serve the terminal;

Determining, according to the identification information, a second sharing control function of the second network slice to which the terminal should be connected, from the network slice of the type; or

The first determining module is configured to:

In a possible implementation manner, the second sending module is configured to:

Sending the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the request information carries the non-access stratum request message ;or

Sending the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the non-access stratum request message is sent by using the signaling connection Giving the second shared control function.

In a sixth aspect, an embodiment of the present invention provides a radio access network node, including:

a first receiving module, configured to receive request information sent by the first sharing function, where the request information includes: an attribute parameter of the terminal, identification information, and a non-access stratum request message; the first shared function is the terminal a shared control function selected when attached to the first network slice;

And a first establishing module, configured to establish a signaling connection with the second shared control function, and send the request information to the second shared control function.

In a possible implementation manner, the first establishing module is configured to:

Sending the request information to the second sharing control function, triggering the second sharing control function and the wireless Establishing, by the access network node, a signaling connection, where the request information carries the non-access stratum request message; or

In a seventh aspect, an embodiment of the present invention provides a sharing control function, including:

a first receiving module, configured to receive request information sent by the terminal; the first sharing function is a shared control function selected when the terminal is attached to the first network slice;

a first determining module, configured to determine, according to the request information, whether the first network slice can provide a service for the terminal;

The first triggering module is configured to: if not, the first shared control function triggers a network slice reselection process.

In a possible implementation, the first trigger module is used to:

A detach request is sent to the terminal to cause the terminal to send a request to the radio access network node to trigger reselection of the network slice.

In a possible implementation, the first trigger module is used to:

Determining, according to the attribute parameter and the identifier information, a second sharing control function of the second network slice to which the terminal should be connected;

Switching or redirecting the terminal to the second sharing control function, and forwarding the non-access stratum request message to the second sharing control function.

In a possible implementation, the first trigger module is used to:

In an eighth aspect, an embodiment of the present invention provides a terminal, including:

a first determining module, configured to determine a first radio access network network slice to which the terminal should be connected;

a first sending module, configured to send request information to a first radio access network node corresponding to the first radio access network network slice; the request information includes identifier information of the terminal and a non-access stratum request message So that the first radio access network node selects a first shared control function of the first core network slice corresponding to the terminal according to the identification information, and sends the non-access stratum request message to the The first shared control function.

Based on the foregoing technical solution, in the embodiment of the present invention, the radio access network node receives the request information sent by the terminal;

Determining, by the radio access network node, whether the second sharing control function is the same as the first sharing control function; The first sharing control function is a sharing control function selected when the terminal is attached to the first network slice. Therefore, the technical problem that the network slice cannot be selected when the terminal initiates new request information is solved, so that the selected network slice can meet the service requirement of the terminal.

DRAWINGS

1 is a schematic diagram of a process of performing network slice selection in an embodiment of the present invention;

2 is a schematic diagram of a process of performing another network slice selection according to an embodiment of the present invention;

3 is a schematic diagram of a process of performing another network slice selection according to an embodiment of the present invention;

4 is a schematic diagram of a process of performing another network slice selection according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a radio access network node according to an embodiment of the present invention;

6 is a schematic structural diagram of another radio access network node according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a shared control function according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another radio access network node according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another radio access network node according to an embodiment of the present invention;

11 is a schematic structural diagram of another sharing control function according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another terminal according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be understood that the technical solution of the present invention can be applied to various communication systems, for example, a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code division. Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) System, Universal Mobile Telecommunication System (UMTS), etc.

It should be understood that, in the embodiment of the present invention, a user equipment (User Equipment, UE) includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile telephone (Mobile Telephone), The user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or called a mobile device). For "cellular" phones, computers with wireless communication capabilities, etc., the user devices can also be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices.

In an embodiment of the invention, a base station (e.g., an access point) may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.

The present invention will be further described in detail with reference to the accompanying drawings, in which FIG. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the first aspect, in the embodiment of the present invention, as shown in FIG. 1, the specific process of network slice selection is as follows:

Step 101: The radio access network node receives the request information sent by the terminal.

In the embodiment of the present application, the request information includes at least one of the following: an attribute parameter, an identifier information, and a non-access stratum request message of the terminal.

In the embodiment of the present application, the non-access stratum request message includes:

Tracking area update request message; or

Service request message; or

Session connection request message;

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.

In the embodiment of the present invention, the service request message is a message that the terminal in the idle state requests to enter the connected state due to service triggering or network paging. The attribute parameter is a parameter indicating the terminal type or the service type determined by the terminal according to the information of the session connection to be established, the capability information of the terminal, and the setting of the user, for example, a dedicated core network ID (DCN ID), and a use. Type type or service type.

In a specific implementation process, after the terminal is attached to the first network slice, when receiving the application trigger, the terminal determines the current usage type parameter or the service type parameter of the terminal according to the information of the application layer and the capability information of the terminal. If the current usage type parameter or service type parameter changes, such as: change from usage type1 to usage type2, the terminal Will carry the new attribute parameter usage type2.

The identification information is one of the following, including but not limited to:

The subscription identifier of the terminal, such as IMSI;

Temporary identification of the terminal, such as GUTI;

The identifier of the network, such as DCN ID, dedicated core network ID;

The identifier of the network slice, such as the Slice ID.

Step 102: The radio access network node determines, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected.

In the embodiment of the present invention, the radio access network node determines, according to the request information, a second sharing control function of the second network slice that the terminal should be connected to, including:

Determining, by the radio access network node, the second sharing control function of the second network slice that the terminal should be connected according to the attribute parameter and the identifier information, including:

In the embodiment of the present application, determining the second shared control function according to the attribute parameter and the identification information mainly has two implementation manners, and the two implementation manners are respectively described in detail below.

method one

The radio access network node determines a network slice type for the service terminal according to the attribute parameter, such as: a network type for providing mobile broadband; a network type for providing large-scale machine type communication; or a low latency The network type of the reliable communication; or the network type for providing the intelligent transportation system; or other types of network types, which are not specifically limited in the embodiment of the present application. In a specific implementation process, for example, if the attribute parameter is a usage type and the usage type is mobile broadband (eMBB), the network slice type that can be determined to serve the terminal based on the usage type is a network type for providing mobile broadband. In a specific implementation, such an attribute parameter for determining a network slice type is also referred to as Network Slice Selection Assistance Information (NSSAI).

In the embodiment of the present application, the sharing control function is a control function of the network slice sharing. For example, the mobility management function is shared by the network slices A and B. Through such division, repeated network functions in the network slice of the core network can be avoided. In a specific implementation process, the radio access network node selects a sharing control function belonging to the PLMN in the specified type of network slice according to the public land mobile network (PLMN) information carried in the identifier information of the terminal, And determine the second shared control function.

Way two

In a specific implementation process, the radio access network node determines, according to the PLMN information carried in the identifier information of the terminal, at least one sharing control function capable of serving the PLMN, and the shared control function may serve different types of network slices, such as: Type A The network slice corresponds to the shared control function 1, the B-type network slice corresponding to the shared control function 2, and the C-type network slice corresponding to the shared control function 3.

Then, according to the attribute parameter of the terminal, for example, the usage type or the service type parameter is indicated as A, the shared control function 1 is determined from the at least one shared control function module as the second shared control function.

For the above two implementations, one of ordinary skill in the art may select according to actual needs, which is not specifically limited in the embodiment of the present application.

Step 103: The radio access network node determines whether the second sharing control function is the same as the first sharing control function; the first sharing control function is a sharing control selected when the terminal is attached to the first network slice. Features.

In the embodiment of the present application, the first shared control function is a shared control function that is selected when the terminal is attached to the first network slice. In a specific implementation process, the radio access network node may perform the first according to the identifier information of the terminal. The identification information of the shared control function determines the first shared control function. The identification information is a temporary identifier allocated by the shared control function selected by the terminal when the terminal is attached to the first network slice.

After determining the first shared control function, the radio access network node determines whether the second shared control function is the same as the first shared control function. When they are the same and different, they correspond to different execution steps.

The first type: if the same, the radio access network node sends the non-access stratum request message to the enjoyment control function.

In a specific implementation process, if the first shared control function is the same as the second shared control function, the radio access network node sends a non-access stratum request message to the first shared control function.

Second: if not the same, the radio access network node sends the non-access stratum request message to the second shared control function.

In the embodiment of the present application, the specific implementation process of the second method specifically includes:

Sending, by the radio access network node, the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, the non-access stratum request message Connected by the signaling Sended to the second shared control function.

In a specific implementation process, after the radio access network node determines the second sharing control function, the radio access network node may directly send the non-access stratum information to the second sharing control function, and trigger the second sharing control function and the wireless The access network node establishes a signaling connection.

The radio access network node may also send the shared control function identifier and the non-access stratum request message of the second shared control function to the first shared control function, and the first shared control function determines whether the first network slice can provide the terminal Service, if the first network slice cannot provide service for the terminal, the first shared control function switches the terminal to the second shared control function, establishes a signaling connection with the node of the radio access network, and sets a non-access stratum request message Forwarded to the second shared control function.

In a specific implementation process, the non-access stratum request message may be carried in the request information and sent to the second shared control function; or the signaling connection established by the radio access network node and the second shared control function may be non-accessed. The layer request message is separately sent to the second shared control function. For the above two implementation manners, a person of ordinary skill in the art may select according to actual needs, which is not specifically limited in the embodiment of the present application.

In a second aspect, in the embodiment of the present invention, as shown in FIG. 2, the specific process of network slice selection is as follows:

Step 201: The radio access network node receives the request information sent by the first sharing function, where the first sharing function is a shared control function selected when the terminal is attached to the first network slice.

Step 202: The radio access network node determines, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected.

Step 203: The radio access network node establishes a signaling connection with the second shared control function, and sends the request information to the second sharing control function.

In the embodiment of the present application, the request information includes at least one of the following: an attribute parameter, an identification information, and a non-access stratum request message of the terminal.

Tracking area update request message; or

Service request message; or

Session connection request message;

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.

In the embodiment of the present invention, the service request message is a message that the terminal in the idle state requests to enter the connected state due to service triggering or network paging. The attribute parameter is a parameter indicating the terminal type or the service type determined by the terminal according to the information of the session connection to be established, the capability information of the terminal, and the setting of the user, such as a dedicated core network ID (DCN ID), and the use. Type type or service type.

In a specific implementation process, after the terminal is attached to the first network slice, when the terminal receives the application trigger, the terminal determines the current usage type parameter or service type parameter of the terminal according to the information of the application layer and the capability information of the terminal. If the current usage type parameter or service type parameter changes, such as: change from usage type1 to usage type2, the terminal will carry the new attribute parameter usage type2.

The subscription identifier of the terminal, such as IMSI;

Temporary identification of the terminal, such as GUTI;

The identifier of the network slice, such as the Slice ID.

In the embodiment of the present application, the first shared control function module first receives an attribute parameter sent by the terminal, such as: usage type 2. The first sharing control function determines whether the first network slice can provide services to the terminal according to the received attribute parameters. If the terminal cannot be served, the first shared control function sends the request information to the radio access network node.

After receiving the request information, the radio access network node determines the second sharing control function according to the received attribute parameter and the identification information, and then establishes a signaling connection with the second sharing control function, and forwards the non-access stratum request message. Give the second share control function.

In the embodiment of the present application, the radio access network node establishes a signaling connection with the second shared control function, and sends the non-access stratum request message to the second shared control function, including :

In a third aspect, in the embodiment of the present invention, as shown in FIG. 3, the specific process of network slice selection is as follows:

Step 301: The first sharing control function receives the request information sent by the terminal, where the first sharing function is a shared control function selected when the terminal is attached to the first network slice.

Step 302: The first sharing control function determines, according to the request information, whether the first network slice can provide a service for the terminal.

Step 303: If not, the first sharing control function triggers a network slice reselection process.

Tracking area update request message; or

Service request message; or

Session connection request message;

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.

In the embodiment of the present application, the first shared control function module first receives an attribute parameter sent by the terminal, such as: usage type 2. The first sharing control function determines whether the first network slice can provide services to the terminal according to the received attribute parameters.

The subscription identifier of the terminal, such as IMSI;

Temporary identification of the terminal, such as GUTI;

The identifier of the network slice, such as the Slice ID.

If not, the first shared control function triggers the network slice reselection process. Correspondingly, there are three implementation modes, and the three implementation modes are described in detail below.

In a first implementation manner, the first sharing control function sends a detach request to the terminal, so that the terminal sends the request information to a radio access network node to perform reselection of a network slice.

In a specific implementation process, the first shared control function sends a detach request to the terminal, so that the terminal sends the request information to the radio access network node, and after the radio access network node receives the request information, it is based on the request information. The attribute parameter and the identification information included in the determining the second shared control function of the second network slice to which the terminal should be connected.

In a second implementation manner, the first sharing control function determines, according to the attribute parameter and the identifier information, a second shared control function of the second network slice to which the terminal should be connected.

In a specific implementation process, after the first sharing control function receives the request information sent by the terminal, the first sharing control function may directly determine, according to the attribute parameter and the identifier information, the second sharing control of the second network slice to which the terminal should be connected. Function and send a non-access stratum request message to the second shared control function.

In a third implementation manner, the first sharing control function sends the request information to a radio access network node, to Trigger the reselection of the network slice.

In a specific implementation process, after receiving the request information, the radio access network node determines a second shared control function according to the received attribute parameter and the identifier information, and then establishes a signaling connection with the second shared control function, and The access layer request message is forwarded to the second shared control function.

In a fourth aspect, the embodiment of the present invention, please refer to FIG. 4, the specific process of network slice selection is as follows:

Step 401: The terminal determines, according to the attribute parameter of the terminal, a network slice of the first radio access network to which the terminal should be connected.

Step 402: The terminal sends request information to a first radio access network node corresponding to the first radio access network network slice, and includes identifier information of the terminal and a non-access stratum request message, so that the The first radio access network node selects a first sharing control function of the first core network slice corresponding to the terminal according to the identifier information, and sends the non-access stratum request message to the first sharing control function. .

In the embodiment of the present application, the access network network slice type may specifically be: a network type for providing mobile broadband; a network type for providing large-scale machine type communication; or a network for providing low latency and high reliability communication. The type of the network; or the network type used to provide the intelligent transportation system; or other types of network types, which are not specifically limited in the embodiment of the present application.

In the embodiment of the present application, when the terminal does not receive the information of the application layer, the access network network slice is selected according to the default usage type; if the terminal receives the application information, according to the application layer information, the terminal The capability information, the setting of the terminal, and the like determine the usage type of the terminal to select an access network network slice.

In the embodiment of the present application, after the terminal performs the radio access network network slice selection, the terminal uses the type of the service or the service type. In this case, the radio access network node can directly select and the terminal according to the identification information of the terminal. The first shared control function of the connected first core network network slice, and then the radio access network node sends a non-access request message to the first shared control function. In the embodiment of the present application, the identifier information is one of the following, including but not limited to: a subscription identifier of the terminal, such as an IMSI; a temporary identifier of the terminal, such as a GUTI; an identifier of the network slice, such as a Slice ID.

Based on the same inventive concept, a radio access network node is provided in the embodiment of the present invention. For the specific implementation of the radio access network node, refer to the description of the method embodiment, and the repeated description is not repeated, as shown in FIG. The wireless access network node mainly includes:

The first receiving module 501 is configured to receive request information sent by the terminal;

The first determining module 502 is configured to determine, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected;

a second determining module 503, configured to determine whether the second sharing control function is the same as the first sharing control function; the first sharing control function is a shared control function selected when the terminal is attached to the first network slice;

In a possible implementation, the request information includes at least one of the following: an attribute parameter of the terminal, and an identification letter. Information, non-access stratum request message.

In a possible implementation manner, the node further includes:

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.

The first determining module is configured to:

On the other hand, based on the same inventive concept, a radio access network node is provided in the embodiment of the present invention. For the specific implementation of the radio access network node, refer to the description of the method embodiment, and the repeated description is not repeated, such as As shown in FIG. 6, the radio access network node mainly includes:

The first receiving module 601 is configured to receive request information sent by the first sharing function, where the first sharing function is a shared control function selected when the terminal is attached to the first network slice.

The first determining module 602 is configured to determine, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected;

The first establishing module 603 is configured to establish, by the radio access network node, a signaling connection with the second shared control function, and send the request information to the second sharing control function.

On the other hand, in the embodiment of the present invention, a sharing control function is provided. For the specific implementation of the shared control function, refer to the description of the method embodiment, and the repeated description is not repeated, as shown in FIG. mainly includes:

The first receiving module 701 is configured to receive request information sent by the terminal, where the first sharing function is a shared control function selected when the terminal is attached to the first network slice.

The first determining module 702 is configured to determine, according to the request information, whether the first network slice can provide a service for the terminal;

The first triggering module 703 is configured to: if not, the first shared control function triggers a network slice reselection process.

In a possible implementation, the first trigger module is used to:

The first sharing control function sends the request information to a radio access network node to trigger a weight of a network slice selected.

On the other hand, a terminal is provided in the embodiment of the present invention. For the specific implementation of the terminal, refer to the description of the method embodiment. The repeated description is not repeated. As shown in FIG. 8, the terminal mainly includes:

a first determining module 801, configured to determine, according to an attribute parameter of the terminal, a first radio access network network slice to which the terminal should be connected;

The first sending module 802 is configured to send request information to a first radio access network node corresponding to the first radio access network network slice; the request information includes identifier information of the terminal and a non-access stratum request a message, so that the first radio access network node selects a first shared control function of the first core network slice corresponding to the terminal according to the identifier information, and sends the non-access stratum request message to the The first shared control function is described.

Based on the same inventive concept, the embodiment of the present invention provides a radio access network node. For the specific implementation of the radio access network node, refer to the description of the method embodiment, and the repeated description is not repeated, as shown in FIG. The radio access network node mainly includes a processor 901, a memory 902, and a transceiver 903. The processor 901, the memory 902 and the transceiver 903 are connected by a bus architecture, and the bus architecture may include any number of interconnected buses and bridges, specifically The one or more processors represented by 901 and the various circuits of the memory represented by memory 902 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 903 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The transceiver 903 receives and transmits data under the control of the processor 901, the memory 902 stores a preset program, the processor 901 reads the program in the memory 902, and the processor 901 is responsible for managing the bus architecture and normal processing. The memory 902 can store data used by the processor 901 in performing operations. Follow the procedure to perform the following process:

Receiving, by the transceiver 903, request information sent by the terminal;

Determining, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected;

Determining whether the second sharing control function is the same as the first sharing control function; the first sharing control function is a sharing control function selected when the terminal is attached to the first network slice;

In a possible implementation, the processor 901 is configured to:

Instructing the transceiver 903 to send the non-access stratum request message to the first shared control function if the second shared control function is the same as the first shared control function.

In a possible implementation, the processor 901 is configured to:

Instructing the transceiver 903 to send the non-access stratum request message to the second shared control function if the second shared control function is different from the first shared control function.

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.

In a possible implementation, the processor 901 is configured to:

The processor 901 is configured to:

Determining, according to the identification information, at least one sharing control function for serving the terminal;

Determining, according to the attribute parameter, a second shared control function of the second network slice to be connected to the terminal from the at least one shared control function.

In a possible implementation, the processor 901 is configured to:

Instructing the transceiver 903 to send the shared control function identifier of the second shared control function and the non-access stratum request message to the first shared control function, so that the first shared control function switches the terminal Redirecting to the second shared control function and forwarding the non-access stratum request message to the second shared control function; or

Instructing the transceiver 903 to send the request information to the second shared control function, triggering the second shared control function to establish a signaling connection with the radio access network node, where the request information carries the non-connected Incoming request message; or

Instructing the transceiver 903 to send the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, and the non-access stratum request message passes the A signaling connection is sent to the second shared control function.

Based on the same inventive concept, an embodiment of the present invention provides a radio access network node. For the specific implementation of the radio access network node, refer to the description of the method embodiment, and the repeated description is not repeated, as shown in FIG. 10 . The radio access network node mainly includes a processor 1001, a memory 1002, and a transceiver 1003. The processor 1001, the memory 1002 and the transceiver 1003 are connected by a bus architecture, and the bus architecture may include any number of interconnected buses and bridges, specifically processed by The one or more processors represented by the device 1001 and the various circuits of the memory represented by the memory 1002 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1003 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The transceiver 1003 receives and transmits data under the control of the processor 1001. The memory 1002 stores a preset program, and the processor 1001 reads the program in the memory 1002. The processor 1001 Responsible for managing the bus architecture and general processing, the memory 1002 can store data used by the processor 1001 in performing operations. Follow the procedure to perform the following process:

The transceiver 1003 receives the request information sent by the first sharing function, where the request information includes: an attribute parameter of the terminal, identification information, and a non-access stratum request message; the first sharing function is that the terminal is attached to the first The shared control function selected when the network is sliced;

And determining, according to the attribute parameter and the identifier information, a second sharing control function of the second network slice to which the terminal should be connected;

Establishing a signaling connection with the second shared control function, and transmitting the non-access stratum request message to the second shared control function.

Based on the same inventive concept, the embodiment of the present invention provides a sharing control function. For details of the implementation of the shared control function, refer to the description of the method embodiment, and the repeated description is not repeated, as shown in FIG. The processor 1101, the memory 1102, and the transceiver 1103 are mainly connected by a bus architecture. The bus architecture may include any number of interconnected buses and bridges, specifically one represented by the processor 1101. The various circuits of the plurality of processors and memory represented by memory 1102 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1103 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The transceiver 1103 receives and transmits data under the control of the processor 1101, the memory 1102 stores a preset program, the processor 1101 reads a program in the memory 1102, and the processor 1101 is responsible for managing the bus architecture and normal processing. The memory 1102 can store data used by the processor 1101 when performing operations. Follow the procedure to perform the following process:

The transceiver 1103 receives the request information sent by the terminal; the first sharing function is a shared control function selected when the terminal is attached to the first network slice;

Determining, according to the attribute parameter, whether the first network slice can provide a service for the terminal;

If not, the sharing control function triggers a network slice reselection process.

In a possible implementation, the processor 1101 is configured to:

The transceiver 1103 is instructed to send a detach request to the terminal to cause the terminal to send a request to the radio access network node to trigger reselection of the network slice.

In a possible implementation, the processor 1101 is configured to:

Instructing the transceiver 1103 to switch or redirect the terminal to the second sharing control function, and forward the non-access stratum request message to the second sharing control function.

In a possible implementation, the processor 1101 is configured to:

The transceiver 1103 is instructed to send the request information to the radio access network node to trigger reselection of the network slice.

Based on the same inventive concept, an embodiment of the present invention provides a terminal. For details of the implementation of the terminal, refer to the description of the method embodiment. The repeated description is not repeated. As shown in FIG. 12, the terminal mainly includes a processor 1201. The memory 1202, the transceiver 1203, the terminal interface 1204, the processor 1201, the memory 1202 and the transceiver 1203 are connected by a bus architecture, and the bus architecture may include any number of interconnected buses and bridges, specifically one or more represented by the processor 1201. The various circuits of the memory represented by the processor and memory 1202 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1203 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The transceiver 1203 receives and transmits data under the control of the processor 1201, the memory 1202 stores a preset program, the processor 1201 reads the program in the memory 1202, and the processor 1201 is responsible for managing the bus architecture and the usual processing. The memory 1202 can store data used by the processor 1201 in performing operations. Follow the procedure to perform the following process:

The transceiver 1203 sends request information to the first radio access network node corresponding to the first radio access network network slice; the request information includes the identifier information of the terminal and a non-access stratum request message, so that the Determining, by the first radio access network node, a first sharing control function of the first core network slice corresponding to the terminal according to the identifier information, and sending the non-access stratum request message to the first sharing control Features.

Based on the foregoing technical solution, in the embodiment of the present invention, the radio access network node receives the request information sent by the terminal, where the request information includes the attribute parameter, the identifier information, and the non-access stratum request message of the terminal; Determining, by the access network node, a second sharing control function of the second network slice to which the terminal should be connected according to the attribute parameter and the identifier information; and determining, by the radio access network node, whether the second sharing control function is The first shared control function is the same; the first shared control function is a shared control function corresponding to the first network slice; if the same, the radio access network node sends the non-access stratum request message to the The first shared control function is described; if not, the radio access network node sends the non-access stratum request message to the second shared control function. Therefore, the technical problem that the network slice cannot be selected when the terminal initiates new request information is solved, so that the selected network slice can meet the service requirement of the terminal.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention may employ one or more computers having computer usable program code embodied therein. The form of a computer program product embodied on a storage medium, including but not limited to disk storage, CD-ROM, optical storage, and the like.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

A network slice selection method, comprising:

The radio access network node receives the request information sent by the terminal;

Determining, by the radio access network node, a second sharing control function of the second network slice to which the terminal should be connected according to the request information;

The radio access network node determines whether the second sharing control function is the same as the first sharing control function; and the first sharing control function is a sharing control function selected when the terminal is attached to the first network slice.
The method according to claim 1, wherein the request information comprises at least one of: an attribute parameter of the terminal, identification information, and a non-access stratum request message.
The method according to claim 2, wherein said radio access network node sends said non-access stratum request message to said first if said second shared control function is the same as said first shared control function A shared control function.
The method according to claim 2, wherein if the second sharing control function is different from the first sharing control function, the radio access network node sends the non-access stratum request message to the The second shared control function.
The method of claim 2, wherein the non-access stratum request message comprises at least one of the following:

Tracking area update request message, service request message, session connection request message;

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.
The method according to claim 2, wherein the radio access network node determines, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected, including:

Determining, by the radio access network node, a network slice type used to serve the terminal according to the attribute parameter;

Determining, by the radio access network node, a second shared control function of the second network slice to which the terminal should be connected, according to the identifier information, or from a network slice of the type; or

Determining, by the radio access network node, the second sharing control function of the second network slice that the terminal should be connected according to the request information, including:

Determining, by the radio access network node, at least one sharing control function for serving the terminal according to the identifier information;

And determining, by the radio access network node, a second shared control function of the second network slice that should be connected to the terminal from the at least one shared control function according to the attribute parameter.
The method of claim 4, wherein if not the same, the radio access network node will The non-access stratum request message is sent to the second shared control function, including:

Sending, by the radio access network node, the shared control function identifier of the second shared control function and the non-access stratum request message to the first shared control function, so that the first shared control function is Transmitting/redirecting to the second shared control function, and forwarding the non-access stratum request message to the second shared control function; or

Transmitting, by the radio access network node, the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the request information carries a Non-access stratum request message; or

Sending, by the radio access network node, the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, the non-access stratum request message And transmitting to the second shared control function through the signaling connection.
A network slice selection method, comprising:

The radio access network node receives the request information sent by the first sharing function; the first sharing function is a shared control function selected when the terminal attaches to the first network slice;

Determining, by the radio access network node, a second sharing control function of the second network slice to which the terminal should be connected according to the request information;

The radio access network node establishes a signaling connection with the second shared control function and sends the requested information to the second shared control function.
The method according to claim 8, wherein the request information comprises at least one of: an attribute parameter of the terminal, identification information, and a non-access stratum request message.
The method of claim 9, wherein the radio access network node establishes a signaling connection with the second shared control function and transmits the requested information to the second shared control function, include:

Transmitting, by the radio access network node, the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the request information carries a Non-access stratum request message; or

Sending, by the radio access network node, the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, the non-access stratum request message And transmitting to the second shared control function through the signaling connection.
A network slice selection method, comprising:

The first sharing control function receives the request information sent by the terminal; the first sharing function is a sharing control function selected when the terminal is attached to the first network slice;

Determining, by the first sharing control function, whether the first network slice can provide a service for the terminal, based on the request information;

If not, the first shared control function triggers a network slice reselection process.
The method according to claim 11, wherein the request information comprises at least one of: an attribute parameter of the terminal, identification information, and a non-access stratum request message.
The method according to claim 12, wherein if the first sharing control function triggers a network slice reselection process, the method includes:

The first sharing control function sends a detach request to the terminal, so that the terminal sends a request to the radio access network node to trigger reselection of the network slice.
The method according to claim 12, wherein if the first sharing control function triggers a network slice reselection process, the method includes:

Determining, by the first sharing control function, a second sharing control function of the second network slice to which the terminal should be connected according to the attribute parameter and the identifier information;

The first sharing control function switches or redirects the terminal to the second sharing control function, and forwards the non-access stratum request message to the second sharing control function.
The method according to claim 12, wherein if the first sharing control function triggers a network slice reselection process, the method includes:

The first sharing control function sends the request information to a radio access network node to trigger reselection of a network slice.
A network slice selection method, comprising:

Determining, by the terminal, the first radio access network network slice that the terminal should be connected according to the attribute parameter of the terminal;

Transmitting, by the terminal, request information to a first radio access network node corresponding to the first radio access network network slice; the request information includes identifier information of the terminal and a non-access stratum request message, so that Determining, by the first radio access network node, a first sharing control function of the first core network slice corresponding to the terminal according to the identifier information, and sending the non-access stratum request message to the first sharing control Features.
A radio access network node, comprising:

a first receiving module, configured to receive request information sent by the terminal;

a first determining module, configured to determine, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected;

The second determining module is configured to determine whether the second sharing control function is the same as the first sharing control function; the first sharing control function is a sharing control function selected when the terminal is attached to the first network slice.
The node according to claim 17, wherein the request information comprises at least one of: an attribute parameter of the terminal, identification information, and a non-access stratum request message.
The node of claim 18, wherein the node further comprises:

And a first sending module, configured to: if the second shared control function is the same as the first shared control function, the radio access network node sends the non-access stratum request message to the first shared control function.
The node of claim 18, wherein the node further comprises:

The second sending module is configured to: if the second sharing control function is different from the first sharing control function, the radio access network node sends the non-access stratum request message to the second sharing control function.
The node of claim 18, wherein the non-access stratum request message comprises at least one of the following:

Tracking area update request message, service request message, session connection request message;

The attribute parameters include:

The usage type parameter of the terminal; and/or

The service type parameter supported by the terminal.
The node of claim 18, wherein the first determining module is configured to:

Determining, according to the attribute parameter, a network slice type used to serve the terminal;

Determining, according to the identification information, a second sharing control function of the second network slice to which the terminal should be connected, from the network slice of the type; or

The first determining module is configured to:

Determining, by the radio access network node, at least one sharing control function for serving the terminal according to the identifier information;

And determining, by the radio access network node, a second shared control function of the second network slice that should be connected to the terminal from the at least one shared control function according to the attribute parameter.
The node of claim 20, wherein the second sending module is configured to:

Sending, by the radio access network node, the shared control function identifier of the second shared control function and the non-access stratum request message to the first shared control function, so that the first shared control function is Transmitting/redirecting to the second shared control function, and forwarding the non-access stratum request message to the second shared control function; or

Sending the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the request information carries the non-access stratum request message ;or

Sending the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the non-access stratum request message is sent by using the signaling connection Giving the second shared control function.
A radio access network node, comprising:

a first receiving module, configured to receive request information sent by the first sharing function; the first sharing function is a shared control function selected when the terminal is attached to the first network slice;

a first determining module, configured to determine, according to the request information, a second sharing control function of the second network slice to which the terminal should be connected;

a first establishing module, configured to establish a signaling connection with the second shared control function, and send the request information Sended to the second shared control function.
The node according to claim 24, wherein the request information comprises at least one of: an attribute parameter of the terminal, identification information, and a non-access stratum request message.
The node of claim 25 wherein said first establishing module is for:

Sending the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the request information carries the non-access stratum request message ;or

Sending the request information to the second sharing control function, triggering the second sharing control function to establish a signaling connection with the radio access network node, where the non-access stratum request message is sent by using the signaling connection Giving the second shared control function.
A shared control function, comprising:

a first receiving module, configured to receive request information sent by the terminal; the first sharing function is a shared control function selected when the terminal is attached to the first network slice;

a first determining module, configured to determine, according to the request information, whether the first network slice can provide a service for the terminal;

The first triggering module is configured to: if not, the first shared control function triggers a network slice reselection process.
The sharing control function according to claim 27, wherein the request information comprises at least one of: an attribute parameter of the terminal, identification information, and a non-access stratum request message.
The shared control function according to claim 28, wherein the first triggering module is configured to:

A detach request is sent to the terminal to cause the terminal to send a request to the radio access network node to trigger reselection of the network slice.
The shared control function of claim 28, wherein the first triggering module is configured to:

Determining, according to the attribute parameter and the identifier information, a second sharing control function of the second network slice to which the terminal should be connected;

Switching or redirecting the terminal to the second sharing control function, and forwarding the non-access stratum request message to the second sharing control function.
The shared control function according to claim 28, wherein the first triggering module is configured to:

The first sharing control function sends the request information to a radio access network node to trigger reselection of a network slice.
A terminal, comprising:

a first determining module, configured to determine, according to an attribute parameter of the terminal, a first radio access network network slice to which the terminal should be connected;

a first sending module, configured to send request information to a first radio access network node corresponding to the first radio access network network slice; the request information includes identifier information of the terminal and a non-access stratum request message To make the first The radio access network node selects a first sharing control function of the first core network slice corresponding to the terminal according to the identifier information, and sends the non-access stratum request message to the first sharing control function.