WO2017186092A1

WO2017186092A1 - Network slice selection method and apparatus

Info

Publication number: WO2017186092A1
Application number: PCT/CN2017/081836
Authority: WO
Inventors: 陈祥榴; 徐岱; 李大鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-04-28
Filing date: 2017-04-25
Publication date: 2017-11-02
Also published as: CN107343306A; CN107343306B

Abstract

The present invention provides a network slice selection method and apparatus. The method comprises: a terminal sends a service request to a network side, the service request carrying a service type of a service to be processed or service description information used for instructing the network side to select a network slice; the terminal receives an information list of a network slice corresponding to the service type and determined by the network side; the terminal determines, according to the received information list, a selection decision used for instructing selection of the network slice; the terminal sends, to the network side, network slice indication information selected according to the selection decision, the network slice indication information being used for indicating location index information of the network slice in the information list or an identifier (ID) of the network slice. By means of the present invention, a problem in the related art of incapability of selecting a network slice is resolved, thereby filling in gaps in the related art.

Description

Network slice selection method and device

Technical field

The present invention relates to the field of communications, and in particular to a method and apparatus for selecting a network slice.

Background technique

The development of mobile communication is changing with each passing day. It penetrates into all aspects of people's work, social and life, and has a tremendous impact on people's lifestyle, working methods, social politics, and economy. Human society has entered the information age, and the demand for business applications in all aspects has exploded. In the future, mobile networks will not only provide communication between people, but also provide services for massive devices of the Internet of Things. For example, virtual reality, high-definition video and other services with ultra-high-speed service requirements can reach 10 to 100 times the current rate; for services such as car networking with low-latency service requirements, the end-to-end delay can be shortened by 5 times; Networking can access 1000 times the current number of services, and battery life can be extended to 10 times now.

Differentiated business models and business needs bring great challenges to the future wireless mobile broadband system in terms of frequency, technology and operation. The traditional communication network, namely the access network (RAN) + core network (CORE), It is increasingly impossible to satisfy all scenarios. And for each scene to build a private network, it will be a waste of resources, not practical.

The development of Network Function Virtualization (NFV) technology makes it possible for operators to build different virtual networks for different business needs. Network slicing is based on a common physical infrastructure, logically defining and dividing the network to form an end-to-end virtual network. Each virtual network has different functional characteristics to dynamically meet various needs and business models.

A typical network slice includes a set of virtualized access network functions and core network functions. The network slice is built by the operator according to the requirements and policies. The functions included in a network slice are also determined by the operator according to the requirements and policies. For example, some network slices may include a dedicated forwarding plane in addition to the control plane functionality; some network slices may include only some basic control plane functions.

FIG. 1 is a schematic diagram of a network slice in the related art. As shown in FIG. 1 , a Common Network, and customized A, B, and C network slice categories. The Common Network provides services for general-purpose services; and customized network slicing provides three different types of services (for example: Type A is ultra-high-speed services such as video services, virtual reality, etc.; Type B is bursty small business data services) Such as QQ, WeChat, etc.; type C is low-latency ultra-reliable services, such as car networking, smart grid, etc.), each type generates different network slice instances according to some differences (such as business requirements and business models, etc. For example, type A performs video services. According to the requirements of the video type, the service rate is divided into a slice A1 supporting normal video and a slice A2 supporting high-definition video. A network slice forms a virtual network that provides a specific mobile network access service for the user terminal (UE). At present, there is no clear method for how to implement network slicing in the industry. For the above problems in related technologies, there is currently no effective solution.

Summary of the invention

The embodiment of the invention provides a method and a device for selecting a network slice to solve at least the problem that the network slice cannot be selected in the related art.

According to an aspect of the embodiments of the present invention, a method for selecting a network slice is provided, including: a terminal sends a service request to a network side, where the service request carries a service type of a service to be performed or is used to indicate network slice provision. The service description information of the service is used to indicate that the network side performs network slice selection; the terminal receives the information list of the network slice corresponding to the service type determined by the network side; Determining, by the terminal, a selection decision for instructing to select a network slice according to the received information list; the terminal sending network slice indication information selected according to the selection decision to the network side; wherein, the indication of the network slice The information is used to indicate location index information of the network slice in the information list, or an identification ID of the network slice.

Optionally, the terminal notifying the network side of the service type to be performed by using the at least one of the following: the new message mode and/or the new field mode, and the resource mapping mode; wherein the resource mapping mode includes at least One of the following: mapping through a preamble Preamble resource and a service type, and mapping through a physical random access channel PRACH resource and a service type.

Optionally, the network slice information includes at least one of the following: a network slice type, the service description information, where the network slice type includes: the network slice type and a network slice level; and the network slice type includes At least one of the following: an ultra-high-speed service, a burst small data service, and a low-latency service; the service description information includes: a parameter of the service and/or an identifier that has a mapping relationship with the service parameter, where the parameter of the service includes At least one of the following: a minimum delay threshold for the service, a minimum rate threshold for the service, a packet loss rate for the service, and a QCI for the quality of service level.

Optionally, network slice levels corresponding to different network slice types have different meanings.

Optionally, the selecting decision includes at least one of: performing network slice selection according to a requirement of the quality of service QoS of the service; performing network slice selection according to the capability of the terminal; and performing network slice selection according to the subscription information of the terminal; Network slice selection based on the type of vertical industry application.

According to another aspect of the embodiments of the present invention, a method for selecting a network slice is provided, including: receiving, by a network side, a service request sent by a terminal, where the service request carries a service type of a service to be performed, or is used for indicating The service description information of the service provided by the network slice; when the service request carries the service description information, the network side selects a network slice according to the service description information; or, carries the service request After determining the service type, the network side sends the information list to the terminal after determining the information list of the network slice information corresponding to the service type, and receives the network slice selected by the terminal according to the information list. Instructing information, wherein the indication information of the network slice is used to indicate location index information of a network slice in the information list, or an identifier ID of a network slice.

According to still another aspect of the embodiments of the present invention, a device for selecting a network slice is provided, which is applied to a terminal side, and includes: a first sending module, configured to send a service request to a network side, where a service description information of the service, where the service description information is used to indicate that the network side performs network slice selection; and the first receiving module is configured to receive the information list of the network slice corresponding to the service type determined by the network side. ; determine the module, set Determining, according to the received information list, a selection decision for indicating selection of a network slice; the second sending module is configured to send network slice information selected according to the selection decision to the network side, wherein the network The indication information of the slice is used to indicate location index information of the network slice in the information list, or an identifier ID of the network slice.

Optionally, the first sending module sends the service type to be performed to the network side by using at least one of the following: a new message and/or a new field manner, and a resource mapping manner; and the resource mapping manner includes at least One of the following: mapping through Preamble resources and service types, mapping through PRACH resources and service types.

Optionally, the network slice information includes at least one of the following: a network slice type, service description information, where the network slice type includes: the network slice type and a network slice level; and the network slice type includes at least the following One of the following: the ultra-high-speed service, the burst small data service, and the low-latency service; the service description information includes: a parameter of the service and/or an identifier that has a mapping relationship with the service parameter, where the parameter of the service includes at least the following: One: the minimum delay threshold of the service, the minimum rate threshold of the service, the packet loss rate of the service, and the service quality level identifier QCI.

According to another aspect of the present invention, a network slice selection device is provided, which is applied to a network side, and includes: a second receiving module, configured to receive a service request sent by the terminal, where the service request carries The service type of the service, or the service description information of the service to be performed; the third sending module is configured to determine, when the service request carries the service type, the information list of the network slice information corresponding to the service type. a processing module, configured to send the information list to the terminal, and receive information used by the terminal to indicate a network slice according to the information list; or, a selection module, configured to carry in the service request When the service description information is available, the network slice is selected according to the service description information.

According to still another aspect of the present invention, a terminal is provided, including: a processor, configured to send a service request to a network side, where the service request carries a service type of a service to be performed or is used to indicate a network slice. a service description information of the service, where the service description information is used to indicate that the network side performs network slice selection; and the processing is further configured to receive, by the network side, a network slice corresponding to the service type. a list of information; the processor further configured to determine, according to the received list of information, a selection decision for indicating selection of a network slice; and transmitting indication information of the network slice selected according to the selection decision to the network side And the indication information of the network slice is used to indicate location index information of the network slice in the information list, or an identifier ID of the network slice.

According to the embodiment of the present invention, the terminal may receive the service request sent by the network side, where the service request carries the service type of the service to be performed or the service description information of the service to be performed, and the network side of the service description information may directly perform network slice The selection, or by the service type, the network side notifies the terminal of the slice information list corresponding to the service type, and the terminal can select the network slice selection decision through the information list terminal, and complete the network slice selection, thereby solving the problem in the related technology. The problem of selecting network slices fills the gaps in the related art.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a network slice in the related art;

2 is a flowchart 1 of a method for selecting a network slice according to an embodiment of the present invention;

3 is a second flowchart of a method for selecting a network slice according to an embodiment of the present invention;

4 is a structural block diagram 1 of a device for selecting a network slice according to an embodiment of the present invention;

FIG. 5 is a structural block diagram 2 of a device for selecting a network slice according to an embodiment of the present invention; FIG.

6 is a schematic diagram of a PRACH resource grouping manner according to an alternative embodiment of the present invention;

FIG. 7 is a schematic diagram of a Preamble resource grouping manner according to an alternative embodiment of the present invention; FIG.

8 is a flowchart of a method for successfully selecting a suitable network slice for service when a UE actively performs a customized service according to an alternative embodiment of the present invention;

9 is a flowchart of a method for selecting a default service type for access when a UE actively performs a non-custom service according to an alternative embodiment of the present invention;

10 is a flowchart of a method for a UE to actively perform a high-definition video service and successfully select an appropriate network slice for service according to an alternative embodiment of the present invention;

11 is a flowchart of a method for actively reporting small data services by an Internet of Things terminal and successfully selecting a suitable network slice for service according to an alternative embodiment of the present invention;

12 is a flow chart of a method for intelligent network fault information reporting as an example and successfully selecting a suitable network slice for service according to an alternative embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In this embodiment, a method for selecting a network slice is provided. FIG. 2 is a flowchart 1 of a method for selecting a network slice according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202: The terminal sends a service request to the network side, where the service request carries the service type of the service to be performed or the service description information used to indicate the service provided by the network slice, and the service description information is used to indicate the network side to select the network slice. ;

If the service request carries the service type, the process continues, and the process proceeds to step S204; When the service description information is carried in, the subsequent slice selection is completed by the network side, and the process ends.

Step S204: The terminal receives the information list of the network slice corresponding to the service type determined by the network side according to the service request.

Step S206: The terminal determines, according to the received information list, a selection decision for indicating selection of a network slice.

Step S208: The terminal sends the network slice indication information selected according to the selection decision to the network side. The indication information of the network slice is used to indicate location index information of the network slice in the information list, or an identifier ID of the network slice.

According to the step S202 to the step S208 of the embodiment, the terminal may send a service request to the network side, where the service request carries the service type of the service to be performed or the service description information of the service to be performed, and the service description information network side The network slice selection may be directly performed, or the network side sends the slice information list corresponding to the type to the terminal by using the service type, and the terminal selects the network slice selection decision based on the slice information list, and then the network slice selection may be performed, that is, The selection of the network slice is realized, thereby solving the problem that the network slice cannot be selected in the related art, and the gap in the related technology is filled.

Optionally, the network slice information involved in this embodiment may include at least one of the following: a network slice type, service description information of a service provided by the network slice, where the network slice type may include: a network slice type and a network slice. level;

The network slice type may include at least one of the following: an ultra-high speed service, a burst small data service, and a low latency service; the service description information includes: a parameter of the service and/or an identifier that is mapped to the service parameter (eg, an ID, Level, index, application name, etc., wherein the parameters of the service include at least one of the following: a minimum delay threshold of the service, a minimum rate threshold of the service, a packet loss rate of the service, and a quality of service level identifier QCI. It should be noted that the network slice level corresponding to different network slice categories in this embodiment has different meanings.

In another optional implementation manner of this embodiment, the manner in which the terminal notifies the network side of the service type to be performed may include: adding a message and/or adding a new field manner in the optional implementation manner of this embodiment. , resource mapping method. In a specific application scenario, the packet may be grouped according to the type of the random access resource. The packet is configured in the following manner: 1. The Preamble is grouped, and the physical random access channel (PhysicalRandom Access Channel, PRACH) is used. Domain resources are grouped. Then, the UE performs random access on the random access resource corresponding to the service type.

For example, when the service type is 1, that is, the ultra-high-speed service, the meaning of the slice level information is defined as follows: 1 is a normal rate level with a minimum rate less than or equal to 5G; 2 is a high rate level with a minimum rate greater than 5G (specific classification granularity) And the threshold may change);

When the service type is 2, that is, burst small data service, the meaning of the slice information is defined as follows: 1 is human-to-human communication, and 2 is IoT device communication (specific classification granularity and threshold may change);

When the service type is 3, that is, the low-latency service, the meaning of the slice information is defined as follows: 1 is a low-latency service with a delay of less than 10 ms, and 2 is an ultra-low-latency service with a delay of less than 100 ms (specific classification) Granularity and thresholds may vary).

In another optional implementation manner of this embodiment, the selection decision involved in the embodiment includes at least one of the following: (1): performing network slice selection according to a service quality QoS requirement of the service; wherein the QoS may be Including at least the following One: delay request, bandwidth requirement; (2): network slice selection according to the capabilities of the terminal; (3): network slice selection according to the subscription information of the terminal; (4): network slice according to the type of vertical industry application select.

It should be noted that FIG. 2 is a description of the present invention from the terminal side. The present invention will be described from the network side in conjunction with FIG. 3, and the terminal side and the network side correspond to each other.

FIG. 3 is a second flowchart of a method for selecting a network slice according to an embodiment of the present invention. As shown in FIG. 3, the steps of the method include:

Step S302: The network side receives the service request sent by the terminal, where the service request carries the service type of the service to be performed, or the service description information used to indicate the service provided by the network slice;

If the service type of the service to be carried is carried, the process proceeds to step S306; if the service description information is carried, the process proceeds to step S304.

Step S304: When the service request carries the service description information, the network side selects the network slice according to the service description information.

Step S306: When the service request carries the service type, the network side determines the information list of the network slice information corresponding to the service type.

Step S308: The network side sends a list of information to the terminal.

Step S310: The network side receives the network slice indication information that is selected by the terminal according to the information list, where the indication information of the network slice is used to indicate the location index information of the network slice in the information list, or the identifier ID of the network slice.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.

In the embodiment, a device for selecting a network slice is provided, which is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

4 is a structural block diagram 1 of a device for selecting a network slice according to an embodiment of the present invention. The device is applied to a terminal side. As shown in FIG. 4, the device includes: a first sending module 42 configured to send a service request to a network side. The service description information is used to indicate the service description information of the service provided by the network slice, and the service description information is used to indicate that the network side performs the network slice selection. The first receiving module 44 is coupled to the first sending module 42 and configured to receive the network side. a information list of the network slice corresponding to the service type determined by the service request; the determining module 46 is coupled to the first receiving module 44, and configured to determine, according to the received information list, a selection decision for indicating selection of the network slice; The sending module 48 is coupled to the determining module 46 The connection is set to send the indication information of the network slice selected according to the selection decision to the network side, wherein the indication information of the network slice is used to indicate location index information of the network slice in the information list, or an identifier ID of the network slice.

Optionally, in the embodiment, the first sending module sends the service type to be performed to the network side by using at least one of the following: a new message and/or a new field mode, and a resource mapping mode. In a specific application scenario, the packet may be grouped according to the category of the random access resource. The packet is grouped by the preamble, and the PRACH time-frequency domain resource of the physical random access channel is grouped. Then, the UE performs random access on the random access resource corresponding to the service type. This method corresponds to the foregoing method embodiment, and details are not described herein again.

In addition, it should be noted that the network slice information involved in this embodiment may include at least one of the following: a network slice type, and service description information of a network slice providing service; The slice category includes a network slice type and a network slice level; the network slice type includes at least one of the following: ultra-high speed service, burst small data service, and low latency service. The network slice level corresponding to different network slice types in this embodiment has different meanings.

In addition, the service description information in this embodiment may also include: a parameter of a service and/or an identifier that is mapped to a service parameter (ID, level, index, and application name) in the optional implementation manner of this embodiment. And the parameter of the service may include at least one of the following: a minimum delay threshold of the service, a minimum rate threshold of the service, a packet loss rate of the service, and a quality of service level identifier QCI; The specific application scenarios may also be application names such as QQ, WeChat, and video.

In another optional implementation manner of this embodiment, the selection decision involved in the embodiment includes at least one of the following: (1): performing network slice selection according to a service quality QoS requirement of the service; wherein the QoS may be Including at least one of the following: delay requirement, bandwidth requirement; (2): network slice selection according to the capability of the terminal; (3): network slice selection according to the subscription information of the terminal; (4): according to the type of vertical industry application Make a network slice selection.

FIG. 5 is a block diagram showing the structure of a network slice selection device according to an embodiment of the present invention. The device is applied to the network side. As shown in FIG. 5, the device includes: a second receiving module 52, configured to receive a service request sent by the terminal. The service request carries the service type of the service to be performed, or the service description information of the service to be performed; the third sending module 54 is coupled to the second receiving module 52, and is configured to carry the service type when the service request is carried. Determining a list of information of the network slice information corresponding to the service type; the processing module 56 is coupled to the third sending module 54 and configured to send the information list to the terminal, and receive the indication information of the network slice selected by the terminal according to the information list; or The selection module 58 is coupled to the second receiving module 52 and configured to select a network slice according to the service description information when the service description carries the service description information.

In addition, in this embodiment, a terminal is provided, and the processor of the terminal may be configured to send a service request to the network side, where the service request carries the service type to be performed, and is also configured to receive the service notified by the network side. a list of information of the type of network slice information; the processor further configured to determine a selection decision for selecting the network slice based on the received information list; and further configured to transmit the network slice information selected according to the selection decision to the network side.

It can be seen from the above that the processor of the terminal in the embodiment of the present invention has a module configured to send a service request to the network side, and a module configured to receive the information list of the network slice information of the service type notified by the network side, and a setting. For And determining, according to the received information list, a module for selecting a selection decision of the network slice, and a module configured to transmit the network slice information selected according to the selection decision to the network side; that is, the processor is configured by a module having the above function.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

The invention is exemplified below in conjunction with an alternative embodiment of the invention;

In the following optional embodiments, in order to provide a better service, when the UE performs a certain service, it can be connected to a customized network slice according to the attributes of the service. The service class mapping may be performed in a manner of randomly accessing the resource group, but the specific manner includes, but is not limited to, the method of adding a message, and the like, and the LTE random access process may be used as an example to describe the slice. The process of selection is included in the present alternative embodiment but is not limited thereto.

Pre-conditions: the random access resources (time domain, frequency domain or code domain) are grouped according to the service category, where each network slice category corresponds to a specific set of random access resources, so that the mobile terminal can select the corresponding access resource. The access operation is performed, and the base station notifies the mobile terminal by using a system message. As shown in FIG. 1 , the random access resources may be divided into four groups: a category A random access resource, a category B random access resource, a category C random access resource, and a default random access resource.

Through the system message, the random access resources are classified according to the slice type, and there are two ways:

A, the PRACH is configured by the system message 2 (the configuration mode is not limited to the system message 2), as shown in FIG. 6, FIG. 6 is a schematic diagram of a PRACH resource grouping manner according to an alternative embodiment of the present invention;

B. The configuration of the preamble is performed by the system message 2 (the configuration mode is not limited to the system message 2). As shown in FIG. 7, FIG. 7 is a schematic diagram of a Preamble resource grouping manner according to an alternative embodiment of the present invention;

When the mobile terminal is to perform the service, the mobile terminal performs random access (Random Access, RA for short) on the corresponding random access resource according to the configuration information of the random access resource in the system message, and detects the mobile terminal after receiving the network side. The random access resource is used to identify the service class, and then the slice information list supported by the class is carried in the random access response message (RAR) to the mobile terminal, and the mobile terminal receives the The slice information list, and the service attributes to be performed, select the most suitable slice, and carry the finally selected network slice indication information to the network side in the RRC Connection Request message.

The following alternative embodiments are described below through alternative embodiments and the accompanying drawings;

Alternative embodiment 1

FIG. 8 is a flowchart of a method for a UE to actively perform a customized service and carry a service type information to successfully select a suitable network slice for service according to an optional embodiment of the present invention. As shown in FIG. 8 , the steps of the method include:

Step S802: When the UE prepares to actively perform the service, the UE performs access on the corresponding random access resource according to the service type.

Step S804: The network side receives the random access request of the UE, and identifies the service type according to the random access resource.

Step S806: The network side carries the slice information list supported by the service type in the random access response message to the UE;

Step S808: The UE selects a most suitable network slice according to the received slice information list, and combines the service to be performed, and carries the slice indication information to the network side in the RRC connection request message.

Optional implementation method 2

FIG. 9 is a flowchart of a method for successfully selecting a suitable network slice for performing service when a UE actively performs a service and carries service description information according to an optional embodiment of the present invention. As shown in FIG. 9, the steps of the method include:

Step S902: The UE prepares to actively perform services, and performs access on the random access resources of the default service type.

Step S904: The network side receives the random access request of the UE, and according to the random access resource, the default service type is identified, and the UE may be accessed by referring to the existing access procedure of the LTE.

Step S906: The UE sends the MSG5 to the network side, where the service description information is carried;

Step S908: The network side performs slice selection according to the service description information in the MSG5 message, and if the service description information is empty, selects a pre-configured slice or a default slice.

Alternative embodiment three

FIG. 10 is a flowchart of a method for a UE to actively perform a high-definition video service and successfully select an appropriate network slice for service according to an alternative embodiment of the present invention. As shown in FIG. 10, the steps of the method include:

Step S1002: The UE prepares to actively perform the high-definition video service, and accesses the random access resource corresponding to the category A according to the service type as the ultra-high-speed service;

Step S1004: The network side receives the random access request, and identifies that the ultra-high speed service is to be performed according to the random access resource;

Step S1006: The network side carries all the slice information (A1, A2) supported by the video service type A to the UE in the random access response message;

Step S1008: The UE obtains a corresponding service requirement according to the prepared high-definition video (the minimum rate of supporting the HD video is greater than 5G), and then performs polling and matching in the slice list, and finally finds the slice A2 with the slice information of 2, Complete the slice selection process;

Step S1010: The UE carries the selected slice information A2 to the network side in the RRC connection request message.

For the above-mentioned step S1002 to step S1010, in the specific application scenario, the type A performs video service, and there are two video service slices in the network, and the slice information that supports the common video is 1 (the minimum rate is less than or equal to 5G). Slice A1, which supports slice A2 of HD video with slice information of 2 (minimum rate greater than 5G).

Optional implementation four

11 is a flowchart of a method for actively reporting a small data service by an IoT terminal and successfully selecting a suitable network slice for service according to an alternative embodiment of the present invention. As shown in FIG. 11, the steps of the method include:

Step S1102: The Internet of Things terminal prepares to actively report small data services, according to the service type, which is a small data burst in the category. Access is performed on the random access resource corresponding to B;

Step S1104: The network side receives the random access request, and identifies, according to the random access resource, that the small data service is to be performed;

Step S1106: The network side carries all the slice information (B1, B2) supported by the burst small data service type B to the Internet of Things terminal in the random access response message;

Step S1108: The Internet of Things terminal reports the service according to the Internet of Things small data, and then performs polling and matching of the service type in the slice list, and finally finds the slice B2 with the slice information 2, and completes the slice selection process;

Step S1110: The UE carries the selected slice information B2 to the network side in the RRC connection request message.

For the foregoing step S1102 to step S1110, the specific application scenario may be: type B performs burst small data service, and there are two burst small data service slices in the network, and the slice information that supports the communication between the person and the person is 1 Slice B1, which supports slice B2 of slice information of networked device communication.

Alternative embodiment five

FIG. 12 is a flowchart of a method for performing smart grid fault information reporting as an example and successfully selecting a suitable network slice for service according to an alternative embodiment of the present invention. As shown in FIG. 12, the steps of the method include:

Step S1202: When the smart grid is faulty, the information reporting service is prepared, and the service type is low-latency service, and access is performed on the random access resource corresponding to the category C.

Step S1204: The network side receives the random access request, and identifies that the low-latency service is to be performed according to the random access resource;

Step S1206: The network side carries all the slice information (C1, C2) supported by the low-latency service type C to the terminal in the random access response message;

Step S1208: The terminal performs the polling and matching according to the service to delay (for example, the delay is less than 8 ms), then polls and matches in the slice list, and finally finds the slice C1 with the slice information of 1, and completes the slice selection process;

Step S1210: The UE carries the selected slice information C1 to the network side in the RRC connection request message.

For the step S1202 to the step S1210, in the specific application scenario, the type C is a low-latency ultra-reliable service, and there are two low-latency service slices in the network, and the delay is less than 10 ms (such as a smart grid). Slice C1 with slice information of 1 and slice C2 with slice information of 2 ms (such as the Internet of Vehicles) with a delay of 2 ms.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

Step S1: The terminal sends a service request to the network side, where the service request carries the service type of the service to be performed or the service description information used to indicate the service provided by the network slice, and the service description information is used to indicate the network side to select the network slice. ;

If the service request carries the service type, the process continues, and the process proceeds to step S2; When the service description information is carried, the slice selection is completed by the network side, and the process ends.

Step S2: The terminal receives a list of information of the network slice corresponding to the service type determined by the network side according to the service request.

Step S3: The terminal determines, according to the received information list, a selection decision for indicating selection of a network slice.

Step S4: The terminal sends the network slice indication information selected according to the selection decision to the network side. The indication information of the network slice is used to indicate the location index information of the network slice in the information list, or the identifier ID of the network slice.

Step S1: The network side receives the service request sent by the terminal, where the service request carries the service type of the service to be performed, or the service description information used to indicate the service provided by the network slice;

If the service type of the service to be carried is carried, the process proceeds to step S3; if the service description information is carried, the process proceeds to step S2.

Step S2: When the service request carries the service description information, the network side selects the network slice according to the service description information.

Step S3: The network side determines a list of information of network slice information corresponding to the service type;

Step S4: The network side sends a list of information to the terminal;

Step S5: The network side receives the network slice indication information that is selected by the terminal according to the information list, where the indication information of the network slice is used to indicate the location index information of the network slice in the information list, or the identifier ID of the network slice.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

In the process of selecting a network slice according to the embodiment of the present invention, the terminal may receive a service request sent by the network side, where the service request carries the service type of the service to be performed or the service description information of the service to be performed, and the service description is performed by the service description. The information network side can directly select the network slice, or through the service type, the network side notifies the terminal of the slice information list corresponding to the service type, and the terminal can select the network slice selection decision through the information list terminal, and complete the network slice selection. Therefore, the problem that the network slice cannot be selected in the related art is solved, and the gap in the related art is filled.

Claims

A method of selecting a network slice, comprising:

The terminal sends a service request to the network side, where the service request carries the service type of the service to be performed or the service description information used to indicate the service provided by the network slice, where the service description information is used to indicate that the network side performs the network. Selection of slices;

Receiving, by the terminal, a list of information of network slices corresponding to the service type determined by the network side;

Determining, by the terminal, a selection decision for indicating selection of a network slice according to the received information list;

The terminal sends the network slice indication information selected according to the selection decision to the network side, where the indication information of the network slice is used to indicate location index information of the network slice in the information list, or network slice ID of the ID.
The method according to claim 1, wherein the terminal notifies the network side of the type of service to be performed by means of at least one of the following: a new message mode and/or a new field mode, and a resource mapping mode; The resource mapping mode includes at least one of: mapping by using a preamble Preamble resource and a service type, and mapping by a physical random access channel PRACH resource and a service type.
The method of claim 1 wherein

The network slice information includes at least one of the following: a network slice type, the service description information;

The network slice type includes: the network slice type and a network slice level; the network slice type includes at least one of the following: an ultra-high speed service, a burst small data service, and a low delay service;

The service description information includes: a parameter of the service and/or an identifier that has a mapping relationship with the service parameter, where the parameter of the service includes at least one of the following: a minimum delay threshold of the service, a minimum rate threshold of the service, and a service The packet loss rate and the quality of service level identify the QCI.
The method according to claim 3, wherein network slice levels corresponding to different network slice types have different meanings.
The method of claim 1 wherein said selecting a decision comprises at least one of:

Perform network slice selection according to the service quality QoS requirements of the service;

Performing network slice selection according to the capabilities of the terminal;

Performing network slice selection according to the subscription information of the terminal;

Network slice selection based on the type of vertical industry application.
A method of selecting a network slice, comprising:

The network side receives the service request sent by the terminal, where the service request carries the service type of the service to be performed, or the service description information used to indicate the service provided by the network slice;

When the service request carries the service description information, the network side selects a network slice according to the service description information; or

After the service request carries the service type, after determining the information list of the network slice information corresponding to the service type, the network side sends the information list to the terminal, and receives the terminal. The network slice indication information selected according to the information list, wherein the indication information of the network slice is used to indicate location index information of a network slice in the information list, or an identifier ID of a network slice.
A network slice selection device is applied to the terminal side, including:

a first sending module, configured to send a service request to the network side, where the service description information is used to indicate a service of the network slice, and the service description information is used to indicate that the network side performs network slice selection;

a first receiving module, configured to receive a list of information of a network slice corresponding to the service type determined by the network side;

a determining module configured to determine a selection decision for indicating selection of a network slice based on the received information list;

a second sending module, configured to send the network slice information selected according to the selection decision to the network side, where the indication information of the network slice is used to indicate location index information of the network slice in the information list, Or the ID of the network slice.
The device according to claim 7, wherein the first sending module sends the type of service to be performed to the network side by means of at least one of the following: a new message and/or a new field mode, and a resource mapping mode; The resource mapping manner includes at least one of: mapping by using a Preamble resource and a service type, and mapping by using a PRACH resource and a service type.
The apparatus according to claim 7, wherein

The network slice information includes at least one of the following: a network slice type, and service description information;

The network slice type includes: the network slice type and a network slice level; the network slice type includes at least one of the following: an ultra-high speed service, a burst small data service, and a low delay service;

The service description information includes: a parameter of the service and/or an identifier that has a mapping relationship with the service parameter, where the parameter of the service includes at least one of the following: a minimum delay threshold of the service, a minimum rate threshold of the service, and a service The packet loss rate and the quality of service level identify the QCI.
The apparatus according to claim 9, wherein network slice levels corresponding to different network slice types have different meanings.
The apparatus of claim 7, wherein the selection decision comprises at least one of:

Perform network slice selection according to the service quality QoS requirements of the service;

Performing network slice selection according to the capabilities of the terminal;

Performing network slice selection according to the subscription information of the terminal;

Network slice selection based on the type of vertical industry application.
A network slice selection device is applied to the network side, including:

The second receiving module is configured to receive a service request sent by the terminal, where the service request carries a service type of the service to be performed, or service description information of the service to be performed;

a third sending module, configured to: when the service request carries the service type, determine a list of information of network slice information corresponding to the service type;

a processing module, configured to send the information list to the terminal, and receive information that is used by the terminal to indicate a network slice according to the information list; or

The selecting module is configured to: when the service request carries the service description information, select a network slice according to the service description information.
A terminal comprising:

The processor is configured to send a service request to the network side, where the service request carries a service type of the service to be performed or service description information for indicating a service provided by the network slice, where the service description information is used to indicate the Network side selection of network slices;

The processing is further configured to receive a list of information of the network slice corresponding to the service type determined by the network side;

The processor is further configured to: determine, according to the received information list, a selection decision for indicating selection of a network slice; and send indication information of the network slice selected according to the selection decision to the network side, where The indication information of the network slice is used to indicate location index information of the network slice in the information list, or an identifier ID of the network slice.