JP2020127237A - Method and network device for selecting service network and management device - Google Patents

Abstract

To simplify a process of selecting a dynamically changing service network and save signaling.SOLUTION: A management device in a network determines a service requirement list of UE for managing a network slice. The service requirement list includes at least one service for the UE. The management device determines a service capability list set including a service capability list of the network slice. The service capability list includes an identifier of the network slice corresponding to the service capability list, and includes services supported by the network slice. The management device determines the first identifier of the first network slice serving the UE according to the service requirement list and the service capability list set. The service capability list corresponding to the first network slice includes all or some of the services in the service requirement list.SELECTED DRAWING: Figure 2

Description

The present invention relates to the field of mobile communications, and more particularly to a method, a network device, a radio access network (RAN) node and a user equipment and a management device for selecting a service network.

At present, in an evolved packet core (Evolved Packet Core, EPC), when a dedicated core (DECOR) network dynamically changes, for example, when DECOR is out of service, user equipment that supports DECOR ( User Equipment, UE) needs to be moved to another DECOR, ie the corresponding DECOR is reselected for the UE.

In the existing DECOR network selection technology, the corresponding DECOR is mainly selected for the UE based on the concept of relocation. The specific steps of the network selection technology are as follows.

(1) If the DECOR changes dynamically, for example if the network creates a new DECOR, or if the DECOR is out of service, the Home Subscriber Server (HSS) may use the subscription data procedure. To update the UE subscription data stored in the Mobility Management Entity (MME) and the MME sends an acknowledgment message to the HSS.

(2) If the UE is idle, the MME needs to initiate a paging procedure to restore the channel between the MME and the UE.

(3) When the UE is in the connected state, the MME initiates a Globally Unique Temporary UE Identity (GUTI) relocation procedure to release radio resources and the UE updates the tracking area (Tracking Area). Update, TAU) Request procedure is started.

(4) If the UE initiates the TAU request procedure to access the original DECOR, the original DECOR is not suitable for continuing to serve the UE because the user's subscription data has been updated. , The original DECOR finds an appropriate new DECOR for the UE according to the updated subscription data, and then the original DECOR initiates a re-guidance procedure to direct the UE's request to the new DECOR. Instruct the RAN node to retransmit.

(5) The new DECOR accepts the access request of the UE and services the UE so that the migration process of the UE is performed.

The service network selection technology has the following problems. If the UE that needs to be migrated performs the TAU redirection procedure and the re-guidance procedure to migrate the UE registered in the original DECOR to the new DECOR, a signaling storm is easily triggered, and in addition, In order to move the UE to another DECOR, the HSS needs to initiate a subscription data update procedure to update the subscription data of all UEs currently registered in the DECOR. For HSS, the signaling load is overly heavy.

The present invention provides a method for selecting a service network, a radio access network node, and a user equipment so that the process of selecting a service network when the service network changes dynamically can be simplified. So that and signaling can be saved.

According to a first aspect, there is provided a method for selecting a service network, the method comprising determining a service requirement list of a UE, the service requirement list comprising at least one service requested by the UE. And a step of determining a service capability list set including a service capability list of at least one service network, each service capability list including an identifier of a service network corresponding to the service capability list, Determining at least a first identifier of a first service network serving a UE according to a service requirement list and a service capability list set, the first identifier including at least one service supported; The service capability list corresponding to the service network includes steps including all or some of the services in the service requirement list.

With reference to a first aspect, in a first possible implementation, determining a first identifier of a first service network serving a UE according to a service requirement list and a service capability list set. , The service capability list corresponding to the first service network includes all or some of the services in the service requirement list, the step comprises the maximum amount of services in the service requirement list according to the service requirement list and the service capability list set. And determining an identifier corresponding to the service capability list in the service capability list set as the first identifier.

With reference to the first aspect or the first possible embodiment, in a second possible embodiment, the method is performed by a UE and comprises a service capability list set comprising a service capability list of at least one service network. The determining step is a step of receiving, by a UE, a first RRC message sent by a RAN node, the first RRC message carrying a service capability list set, and a first RRC message. And determining a service capability list set according to the method, the method transmitting a second RRC message by the UE to the RAN node, the second RRC message carrying the first identifier, The second RRC message further comprises steps used to instruct the first service network to serve the UE.

With reference to the second possible embodiment, in a third possible embodiment, the second RRC message further carries the service requirement list so that the RAN node can send the service requirement list to the first service network. Try to send.

With reference to the first aspect or first possible embodiment, in a fourth possible embodiment, the method is performed by a RAN node, and the step of determining a service requirement list of the UE is transmitted by the UE. Receiving a third RRC message by the RAN node, the third RRC message carrying a service capability list, and determining the service capability list according to the third RRC message. Determining a service capability list set comprising a service capability list of at least one service network, the method comprising: receiving by the RAN node a service capability list of the at least one service network sent by the management device, or at least Receiving a service capability list of at least one service network sent by the one service network, and determining a service capability list set including the service capability list of the at least one service network.

With reference to the third possible embodiment or the fourth possible embodiment, in the fifth possible embodiment, the method comprises a message carrying a service requirement list and a first identifier by a RAN node, Sending to the first service network, causing the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the first service network, the notification message comprising: The method further comprises steps used to inform the UE about services in the service requirement list and included in the service capability list of the first service network.

With reference to any one of the third to fifth possible embodiments, in a sixth possible embodiment, the method comprises the step of receiving, by a RAN node, an indication message sent by a management device. And the indication message is used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, and the steps, and at least one in the service capability set according to the instruction message. Further adding, modifying, or deleting the service capability list of the service network by the RAN node.

With reference to the first aspect, or any one of the first to sixth possible implementations, in a seventh possible implementation, the service requirement list further comprises a priority corresponding to the service, Determining the first identifier of the first service network serving the UE according to the service requirement list and the service capability list set, the service capability according to the services in the service requirement list in descending order of priority corresponding to the service. Retrieving the list set to determine a first identifier of a first service network serving the UE.

According to a second aspect, a method for selecting a service network is provided, the method receiving, by a RAN node, a service capability list of at least one service network sent by a management device, or at least Receiving a service capability list of at least one service network sent by one service network, each service capability list including an identifier of the service network corresponding to the service capability list and supported by the service network. Transmitting at least one service to the UE by the RAN node, the first RRC message comprising at least one service, the first RRC message comprising a service capability list of at least one service network. And carrying a set, the first RRC message is used by the UE to determine a first identifier of a first service network serving the UE according to a service requirement list and a service capability list set of the UE, The service capability list of the first service network includes all or some of the services in the service requirement list, the service requirement list including at least one service requested by the UE, and a step transmitted by the UE. Receiving a second RRC message by a RAN node, the second RRC message carrying a first identifier of a first service network in at least one service network, the second RRC message Is used for instructing the first service network to service the UE.

With reference to the second aspect, in a first possible implementation, the second RRC message further carries a service requirement list, the method comprising the service requirement list by a RAN node to a first service network. Sending the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the service network, the notification message being in the service requirement list Further comprising the steps used to inform the UE about the services included in the service capability list of the service network of.

With reference to the second aspect or the first possible embodiment, in the second possible embodiment, the RAN node is further configured to receive the instruction message sent by the management device, the instruction message being , Used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the RAN node according to the instruction message the service capability list of at least one service network in the service capability set. Are further configured to add, change, or delete.

According to a third aspect, there is provided a method for selecting a service network, the method determining by a UE a service requirement list of a UE, the service requirement list being at least requested by the UE. Comprising one service, and transmitting, by the UE, an RRC message to a RAN node, the RRC message carrying a service requirement list, the RRC message comprising the service requirement list and at least one service network service. The service capability list of the first service network is used by the RAN node to determine the first identifier of the first service network serving the UE according to the service capability list set including the capability list, the service capability list of the first service network is Including all or some of the services in the list, each service capability list including an identifier of a service network corresponding to the service capability list, and including at least one service supported by the service network.

With reference to a third aspect, in a first possible implementation, the method comprises a notification message sent by a first service network to a UE according to a service requirement list and a service capability list of the first service network, the UE The receiving message according to claim 1, further comprising: the notification message being used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network. ..

According to a fourth aspect, a method for managing a service network is provided, the method comprising: receiving, by a management device, a service capability list of the service network transmitted by the service network, the service capability comprising: The list includes a step of including an identifier of the service network and at least one service supported by the service network, and a step of transmitting, by the management device, the service capability list to the RAN node.

With reference to a fourth aspect, in a first possible implementation method, the method comprises the step of generating an instruction message by a management device, the instruction message adding, changing, a service capability list of a service network, Or further used to instruct the RAN node to delete, and by the management device sending an instruction message to the RAN node.

According to a fifth aspect, there is provided a network device for selecting a service network, the network device including a receiver, a processor and a transmitter, the receiver configured to receive the message. The transmitter is configured to send the message, the processor is configured to determine a service requirement list of the user equipment UE, the service requirement list including at least one service requested by the UE, the processor at least Further configured to determine a service capability list set including service capability lists of one service network, each service capability list including an identifier of a service network corresponding to the service capability list, and at least one supported by the service network. Corresponding to the first service network, wherein the processor is further configured to determine a first identifier of the first service network serving the UE according to the service requirement list and the service capability list set. The service capability list to be included includes all or some of the services in the service requirement list.

With reference to a fifth aspect, in a first possible implementation, the processor includes the maximum amount of services in the service requirement list according to the service requirement list and the service capability list set and is in the service capability list set. It is specifically configured to determine the identifier corresponding to the service capability list as the first identifier.

With reference to the fifth aspect or the first possible implementation, in the second possible embodiment, the network device is a UE and the receiver receives the first RRC message sent by the RAN node. Configured to receive, the first RRC message carries a service capability list set, and the processor is specifically configured to determine the service capability list set according to the first RRC message received by the receiver and transmit The machine is configured to send a second RRC message to the RAN node, the second RRC message carrying the first identifier.

With reference to the second possible embodiment, in a third possible embodiment the second RRC message further carries the service requirement list, the RAN node carrying the service requirement list first. To send to the service network.

With reference to the fifth aspect or the first possible implementation, in the fourth possible implementation, the network device is a RAN node and the receiver receives the third RRC message sent by the UE. The third RRC message is configured to receive, the third RRC message carries a service requirement list, and the processor is specifically configured to determine the service requirement list according to the third RRC message received by the receiver, the receiver being The processor is further configured to receive a service capability list of the service network sent by the management device, or to receive a service capability list of the at least one service network sent by the at least one service network, the processor comprising: More specifically configured to determine a service capability list set that includes a service capability list of at least one service network.

With reference to the third possible embodiment or the fourth possible embodiment, in a fifth possible embodiment the transmitter sends a message carrying a service requirement list to the first service network. Configured to cause the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the first service network, the notification message being in the service requirement list Used to inform the UE about the services included in the service capability list of the service network of the.

With reference to any one of the third to fifth possible embodiments, in the sixth possible embodiment the receiver is further configured to receive the indication message sent by the management device, The indication message is used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, and the processor follows the instruction message to the service of at least one service network in the service capability set. It is further configured to add, change, or delete capability lists.

With reference to the fifth aspect, or any one of the first to sixth possible implementations, in the seventh possible implementation, the service requirement list comprises a list of at least one service requested by the UE. The processor further includes a priority corresponding to each, and the processor searches the service capability list set according to the service in the service requirement list in descending order of the priority corresponding to the service, and determines the service capability list set of the first service network serving the UE. Specially configured to determine the first identifier.

According to a sixth aspect, there is provided a RAN node for selecting a service network, comprising a transmitter and a receiver, the receiver receiving a service capability list of at least one service network transmitted by a management device. Or receiving a service capability list of at least one service network sent by the at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list, Including at least one service supported by the service network, the transmitter configured to send a first RRC message to the UE, the first RRC message including a service capability list of the at least one service network The first RRC message carrying the service capability list set is according to the service requirement list of the UE, by the UE for determining a first identifier of a first service network serving the UE from the service capability list set. Used, the service capability list of the first service network includes all or some of the services in the service requirement list, the service requirement list includes at least one service requested by the UE, and the receiver is the UE Configured to receive a second RRC message sent by the second RRC message, the second RRC message carrying a first identifier of a first service network in at least one service network, the second RRC message being , A first service network is used to instruct the UE to serve.

With reference to the sixth aspect, in the first possible implementation, the second RRC message further carries a service requirement list, and the transmitter causes the service requirement list to be transmitted to the first service network. Further configured, the first service network sends a notification message to the UE according to the service requirement list and the service capability list of the service network, wherein the notification message is in the service requirement list and the service of the first service network. It is used to inform the UE about the services included in the capability list.

With reference to the sixth aspect or the first possible embodiment, in the second possible embodiment, the receiver is further configured to receive the instruction message sent by the management device, wherein the instruction message is , Used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the RAN node according to the instruction message the service capability list of at least one service network in the service capability set. Further including a processor configured to add, change, or delete.

According to a seventh aspect, there is provided a user equipment UE for selecting a service network, comprising a processor and a transmitter, the processor is configured to determine a service requirement list of the UE, the service requirement list being the UE. A transmitter configured to send an RRC message to the RAN node, the RRC message carrying a service requirement list, the RRC message comprising the service requirement list and the at least one service The service capability list of the first service network is used by the RAN node to determine the first identifier of the first service network serving the UE according to the service capability list set including the service capability list of the network, , All or part of the services in the service requirement list, each service capability list including an identifier of a service network corresponding to the service capability list and including at least one service supported by the service network.

With reference to a seventh aspect, in a first possible implementation, the UE receives a notification message sent to the UE by the first service network according to a service requirement list and a service capability list of the first service network. The notification message is further used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network.

According to an eighth aspect, there is provided a management device including a receiver and a transmitter, the receiver being configured to receive a service capability list of a service network transmitted by the service network, the service capability list comprising: The transmitter includes an identifier of the service network and at least one service supported by the service network, and the transmitter is configured to send the service capability list to the RAN node.

With reference to an eighth aspect, in a first possible implementation, the management device further comprises a processor configured to generate an instruction message, the instruction message adding a service capability list of the service network, Used to instruct the RAN node to modify or delete, the transmitter is further configured to send an instruction message to the RAN node.

According to a ninth aspect, there is provided a network device for selecting a service network including a processing module, the processing module configured to determine a service requirement list of a user equipment UE, the service requirement list being a UE. The at least one service required by the processing module is further configured to determine a service capability list set including a service capability list of the at least one service network, each service capability list corresponding to a service capability list. Including at least one service supported by the service network, the processing module comprising a first service network of a first service network serving the UE according to the service requirement list and the service capability list set. The service capability list further configured to determine the identifier and corresponding to the first service network includes all or part of the services in the service requirement list.

With reference to the ninth aspect, in a first possible implementation, the processing module includes the maximum amount of services in the service requirement list according to the service requirement list and the service capability list set, and the service module as the first identifier. It is specifically configured to determine the identifier corresponding to the service capability list in the capability list set as the first identifier.

With reference to the ninth aspect or the first possible embodiment, in the second possible embodiment, the network device is a UE, the UE further comprising a receiving module and a transmitting module, wherein the receiving module is a RAN. Configured to receive a first RRC message sent by the node, the first RRC message carrying a service capability list set, and the processing module according to the first RRC message received by the receiver. Particularly configured to determine the list set, the sending module is configured to send a second RRC message to the RAN node, the second RRC message carrying the first identifier.

With reference to the second possible embodiment, in a third possible embodiment the second RRC message further carries the service requirement list, the RAN node carrying the service requirement list first. To send to the service network.

With reference to the ninth aspect or the first possible embodiment, in the fourth possible embodiment, the network device is a RAN node, the RAN node further comprising a receiving module, the receiving module being by a UE. The third RRC message is configured to receive the transmitted third RRC message, the third RRC message carries the service requirement list, and the processing module determines the service requirement list according to the third RRC message received by the receiving module. And a receiving module for receiving the service capability list of the service network sent by the management device or for receiving the service capability list of the at least one service network sent by the at least one service network. And the processing module is further specifically configured to determine a service capability list set that includes a service capability list of at least one service network.

In a fifth possible embodiment, with reference to the third possible embodiment or the fourth possible embodiment, the RAN node sends a message carrying a service requirement list to the first service network. Further comprising a sending module configured to cause the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the first service network, the notification message comprising the service requirement list. It is used to inform the UE about services that are within and included in the service capability list of the first service network.

With reference to any one of the third to fifth possible embodiments, in the sixth possible embodiment the receiving module is further configured to receive the indication message sent by the management device, The indication message is used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the processing module according to the instruction message, of the at least one service network in the service capability set. It is further configured to add, change, or delete service capability lists.

With reference to the ninth aspect, or any one of the first to sixth possible implementations, in the seventh possible implementation, the service requirement list is a list of at least one service requested by the UE. The processor further includes a priority corresponding to each, and the processor searches the service capability list set according to the service in the service requirement list in descending order of the priority corresponding to the service, and determines the service capability list set of the first service network serving the UE. Specially configured to determine the first identifier.

According to a tenth aspect, there is provided a RAN node for selecting a service network, comprising a transmitting module and a receiving module, the receiving module receiving a service capability list of at least one service network transmitted by a management device. Or receiving a service capability list of at least one service network sent by the at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list, The transmitting module comprises at least one service supported by the service network, the transmitting module is configured to transmit a first RRC message to the user equipment UE, the first RRC message being a service capability list of the at least one service network. And a first RRC message for determining a first identifier of the first service network serving the UE according to the service requirement list and the service capability list set of the UE. Used by the UE, the service capability list of the first service network includes all or some of the services in the service requirement list, the service requirement list includes at least one service requested by the UE, and the receiving module is , A second RRC message that is configured to receive a second RRC message sent by the UE, the second RRC message carrying a first identifier of a first service network in at least one service network, and a second RRC message. The message is used to instruct the first service network to service the UE.

With reference to the tenth aspect, in the first possible implementation, the second RRC message further carries a service requirement list, and the transmitting module causes the service requirement list to be transmitted to the first service network. Further configured, the first service network sends a notification message to the UE according to the service requirement list and the service capability list of the service network, wherein the notification message is in the service requirement list and the service of the first service network. It is used to inform the UE about the services included in the capability list.

With reference to the tenth aspect or the first possible embodiment, in the second possible embodiment, the receiving module is further configured to receive the instruction message sent by the management device, wherein the instruction message is , Used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the RAN node according to the instruction message the service capability list of at least one service network in the service capability set. Further comprising a processing module configured to add, change, or delete.

According to an eleventh aspect, there is provided a UE for selecting a service network, comprising a processing module and a transmission module, the processing module being configured to determine a service requirement list of the UE, the service requirement list being the UE. The at least one service required by the sending module is configured to send an RRC message to the RAN node, the RRC message carrying a service requirement list, the RRC message being a service capability of the at least one service network. A service capability list of the first service network, used by the RAN node to determine the first identifier of the first service network serving the UE according to the service requirement list from the service capability list set including the list. Includes all or some of the services in the service requirement list, each service capability list including an identifier of a service network corresponding to the service capability list, and including at least one service supported by the service network.

With reference to the eleventh aspect, in a first possible implementation, the UE receives a notification message sent by the first service network to the UE according to a service requirement list and a service capability list of the first service network. The notification message is further configured to: and the notification message is used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network.

According to a twelfth aspect, there is provided a management device including a receiving module and a transmitting module, the receiving module being configured to receive a service capability list of a service network transmitted by the service network, the service capability list comprising: The transmitter includes an identifier of the service network and at least one service supported by the service network, and the transmitter is configured to send the service capability list to the RAN node.

With reference to the twelfth aspect, in the first possible implementation, the management device further comprises a processing module configured to generate the instruction message, the instruction message adding a service capability list of the service network. Used to instruct the RAN node to modify, modify, or delete, and the sending module is further configured to send an instruction message to the RAN node.

According to the technical solution of the present invention, when the service network changes dynamically, a service network that can meet the service requirements of the UE is provided to the UE according to the service requirements of the terminal device and the services supported by the service network. Will be selected against. According to the technical solution of the present invention, the process of selecting a service network when the service network changes dynamically can be simplified and signaling can be saved.

To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments of the present invention. Apparently, the accompanying drawings in the following description show only some embodiments of the present invention, and a person of ordinary skill in the art will understand that without accompanying creative efforts, other drawings may be included in the drawings. The drawing may be further derived.

FIG. 1 is a schematic diagram showing a network architecture system according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 3 is a schematic flow chart illustrating a method for managing a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a network device for selecting a service network according to an embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a RAN node according to an exemplary embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a UE according to an embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a management device according to an exemplary embodiment of the present invention.

In order to further clarify the objects, technical solutions, and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described later with reference to the accompanying drawings of the embodiments of the present invention. Be clear and complete. Apparently, the described embodiments are a part of the embodiments of the present invention, and do not represent the entire embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

For ease of understanding, a brief description is provided below with reference to the application scenario of the embodiment of the invention shown in FIG. The architecture system shown in FIG. 1 may be specifically a 5G network architecture system or may be a conventional network architecture system such as a 4G network architecture system. The network architecture shown in FIG. 1 includes a UE, a RAN, and a service network.

The UE may be a conventional 4G terminal device or a terminal device supporting a 5G network. Depending on the actual application scenario and the type of terminal device, the UE may support one or more types of services. The service requirement list may be configured at the UE, and the service requirement list includes one or more types of services supported by the UE.

The RAN node in the RAN network may be a radio base station such as an evolved NodeB (e-UTRAN NodeB, eNodeB). After the radio channel is established between the UE and the RAN node, the UE accesses the service network by using the RAN node to obtain the service provided by the service network.

In the case of unique types of scenarios or unique user requirements, the serving network may provide customized services for particular types of UEs. Depending on the actual application scenario and the type of terminal device, the service network may support one or more types of service in order to ensure that the UE gets the full service. After the service network is created, a service capability list of the service network is defined to record the identifier of this network slice and the services supported by this network slice. The service network may be a dedicated core network within the EPC architecture or it may be a network slice within the 5G network.

In future 5G systems, networks will be further abstracted into network slices based on logical functions. Network slices are not logically divided into network elements, but are created in a “customized function+general purpose hardware” manner. According to such network structure, the operator is allowed to provide the network to the user as a service and meet the requirements of different users according to such indicators as rate, capacity, coverage, delay, reliability, security and availability. The entire network can be freely combined to meet.

Software Defined Network (SDN) and Network Function Virtualization (NFV) technologies are used to provide customized network slices for different types of communication users on the same infrastructure. Good. For example, the user equipment 1 of FIG. 1 may be a UE that uses mobile broadband (Mobile BroadBand, MBB), and the user equipment 2 may be a UE that uses vehicle-to-vehicle (V2V) communication. Alternatively, the user equipment 3 may be a UE using machine type communication (MTC), the service network 1 may be an MBB network slice, the service network 2 may be a V2V network slice. Or the service network 3 may be an MTC network slice.

The architectural system shown in FIG. 1 may further include a management device. A service capability list for one or more service networks is deployed on the management device, and the management device may be configured to manage the one or more service networks. If the management device is able to learn the service capability list of the service network, or if the service network is bad due to geographical constraints or for some other reason and it is out of service to the UE, the management device may change the service. Instruct the RAN node to delete the service capability list of the network.

It should be noted that the technical solution for selecting the service network in the embodiment of the present invention is not limited to the network architecture shown in FIG. Embodiments of the present invention may also be applied to other network architectures similar to network function modularization or servicing.

FIG. 2 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The method of FIG. 2 includes the following steps.

S201. Determine a service requirement list for the UE, the service requirement list including at least one service requested by the UE.

S202. Determining a service capability list set including service capability lists of at least one service network, each service capability list including an identifier of a service network corresponding to the service capability list and including at least one service supported by the service network. ..

S203. According to the service requirement list and the service capability list set, determine a first identifier of a first service network that provides a service to the UE, the service capability list of the first service network is all of the services in the service requirement list or Including some.

According to the method for selecting a service network in the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. May be done, so that the process of selecting a service network can be simplified if the service network changes dynamically, and signaling can be saved.

In this embodiment of the invention, the network device (such as HSS) may configure the service requirement list for the UE according to the capabilities of the UE and the services that the UE subscribes to. Services that the UE subscribes to include call services, mobile broadband services, machine type communication services, vehicle-to-vehicle communication services, ultra-low latency services, ultra-high reliability services, and Internet Protocol (IP) continuity maintenance services. May be. Depending on the actual application scenario and terminal type, the UE may support one or more types of services. For example, a vehicle-type UE may perform autonomous driving by using an inter-vehicle communication service, and a high-definition video can be viewed by using a mobile broadband service, so the service requirement list of the UE is May include inter-vehicle communication services and mobile broadband services. All these services are listed in the service requirements list.

Table 1 is an example of the service requirement list of the UE. It may be seen from Table 1 that the UE may support voice services, mobile broadband services, ultra-reliable services, and other services.

The network device may send the generated service requirement list to the UE, which may store the service requirement list in the manner of Subscriber Identity Module (SIM) card storage, or the service requirement list. May be stored directly.

In this embodiment of the invention, optionally, a radio link may be established between the UE and the RAN node, for example, when sending an RRC message to the RAN node, the UE may send an RRC message to the UE. Transfer the service requirement list to the RAN node. The RRC message sent by the UE to the RAN node is usually a non-access stratum (NAS) message defined in the standard, so the service requirement list of the UE may be sent with the NAS message. ..

In this embodiment of the invention, the network service capability list of the service network is defined when the service network is created and indicates the services supported by the service network. Depending on the actual application scenario, the service network may support one or more types of service. For example, a service network used in an industrial control scenario may simultaneously support machine type communication services, ultra low latency services, and ultra high reliability services. All these services are listed in the service capability list.

Table 2 is an example of the service capability list of the service network. It may be seen from Table 2 that the service network may support voice services, mobile broadband services, ultra-reliable services, and other services.

After the new service network is created, the service capability list of the service network may be configured at the RAN node during the actual deployment of the service network.

If the service capability list of the service networks in the network changes, the management device may further instruct the RAN node to change the service capability list corresponding to the service network.

According to the indication message sent by the management device, the RAN node modifies the service capability list corresponding to the service network and updates the service capability list, after which the UE originally served by the service network re-accesses the network. In this case, the RAN node, the UE, or another network management device may select the service network serving the UE according to the latest set of service capability lists, so that the redirection process is avoided and the signaling is saved. It has become.

The service network deployed in the network may be bad due to geographical restrictions and is out of service to the UE. If the service network is bad, the management device may instruct the RAN nodes within the service network's service range to delete the service network's service capability list.

The RAN node deletes the service capability list corresponding to the service network which is out of service from the service capability list set and updates the service capability list set according to the instruction message sent by the management device. If the UE originally served by the serving network accesses the network again, the RAN node, the UE, or another network management device selects the serving network serving the UE according to the latest set of service capabilities list. In some cases, the redirection process is avoided and signaling is saved.

In the case of a local network, the UE usually has a dedicated service network that can support all services of the UE, but there are some services that can support only some services of the UE.

Optionally, after the RAN node has a service capability list set, the RAN node sends the UE's service requirement list sent by the UE by using an RRC message to the services in the service capability list set on the RAN node. It may be compared with the ability list. In particular, the services in the service requirement list are compared with the services in the service capability list to find a service capability list that can include all or some of the services in the service requirement list. The service network corresponding to the identifier in the service capability list is the service network that provides the service to the UE and is the service network selected by the RAN node for the UE.

In general, the service network that can provide the maximum amount of service requested to the UE and that is within the plurality of service networks may be determined as the service network serving the UE.

For example, the service requirement list of the UE received at the RAN node is shown in Table 1, the service capability list on the RAN node is the service capability list shown in Table 2, that is, the service capability list set is shown in Table 3. By comparing the service requirement list shown in Table 1 with the service requirement list shown in Table 3, the service ability list corresponding to the identifier 1 shows all services in the service requirement list of the UE. It may be appreciated that the serving network, which comprises, ie corresponding to identifier 1, may support the maximum amount of service requested by the UE. Therefore, the RAN node may select the service network corresponding to the identifier 1 as the service network that provides the service to the UE.

After the RAN node determines the identifier of the service network serving the UE, normal service procedures may be performed between the UE and the selected service network.

Optionally, the RAN node may send the UE's list of service requirements to the service network serving the UE. After receiving the service requirement list of the UE, the service network may compare the service requirement list of the UE with the service capability list of the network serving the UE. If the service network cannot support all the services of the UE, ie only some of the services requested by the UE, the service network sends a notification message to the UE to inform the UE of the service network. Informs the UE about the services that can be currently offered. For example, the UE is notified by using a NAS accept message, and the UE refers to the NAS accept message to determine the services that may be required in subsequent service requirements.

In this embodiment of the invention, optionally, if a radio link may be established between the RAN node and the UE, the RAN node includes in the RRC message a plurality of service capability lists, as shown in Table 3. A service capability list of multiple service networks, such as a service capability list set, may be transferred to the UE.

In this case, the UE compares the services in the UE's service requirement list (such as the service requirement list shown in Table 1) with the services in the multiple service capability lists, and all or all of the services in the service requirement list. Select a service capability list that contains a portion (such as the service capability list corresponding to identifier 1 in Table 3). The service network corresponding to the identifier (such as identifier 1 in Table 3) in the service capability list is the service network that provides the service to the UE and is the service network selected for the UE. Then, when sending the RRC message to the RAN node, the UE may send an identifier (such as identifier 1 in Table 3) to the RAN node. Therefore, normal service procedures may be performed between the UE and the selected service network by using the RAN node.

The UE may further send the services requested by the UE (such as the service requirement list shown in Table 1) to the RAN node. After the RAN node receives the UE's service requirement list sent by the UE, optionally, the RAN node provides the UE's service requirement list, services the UE to the service selected by the RAN node. May be sent to the network. After receiving the service requirement list of the UE, the service network compares the service requirement list of the UE with a service capability list of the service network to determine a service that can be provided by the service network for the UE. There is.

In this case, the UE has compared the service requirement list of the UE with the service capability list of the service network, so that the UE already belongs to the UE and already has services that can be supported by the currently selected service network. Clearly aware, the serving network does not need to inform the UE about the services that can be offered by the serving network.

According to the method for selecting a service network in this embodiment of the present invention, the UE actively selects a service network that matches the current service requirement from the service capability list set according to the service requirement list of the UE. Therefore, the process of selecting a service network can be simplified when the network changes dynamically, and signaling can be saved.

Optionally, the method for selecting a service network in an embodiment of the present invention may be performed by a management device of a network slice in future 5G network architecture, i.e., the management device includes a service requirement list of UE and When the service capability list of the network slice is acquired, and the service network that matches the current service requirement of the UE is selected from the service capability lists of the plurality of network slices according to the service requirement list of the UE, and the network dynamically changes The process of selecting a service network can be simplified and signaling can be saved.

Optionally, the RAN node in this embodiment may be a visited RAN node accessed by the UE in a roaming scenario. In this case, the RAN node in the roaming area selects the service network of the UE according to the service requirement list of the UE and the service capability list of the service network of the roaming area to guarantee the roaming access of the UE.

According to the method for selecting a service network in this embodiment of the invention, in a dynamic situation, for example, when the service network is dynamically created, dynamically updated, or defective. , The RAN node may add or remove service capability lists of the configured service network, allowing the UE to perform normal access when the service network changes dynamically. Thus, the UE is not only more flexible and more effective in accessing the service network, but the redirection process is avoided and a large amount of signaling is saved.

In a practical scenario to which this embodiment of the present invention is applied, the UE's dedicated service network is usually deployed on the local network, so that the service network satisfying all the service requirements of the UE is There may be networks that may be selected but may not meet all the service requirements of the UE. In another example, in a roaming scenario, the UE's dedicated network may not be deployed in the roaming network, and the serving network within the roaming network may only provide some services required by the UE. In this case, the priority of the services requested by the UE needs to be considered, that is, the priority of each service requested by the UE is defined when the service requirement list of the UE is defined. The service network that can provide the best matching service is selected for the UE according to the priority of each service. The service network capable of providing the best matching service may be the service network capable of providing the maximum amount of matching services, or may provide the maximum amount of high priority services. It may be a service network. The service network that can provide the best matching service is not limited in the present invention.

The service requirement list in which the priority of each service requested by the UE is defined is shown in Table 4. It can be seen from Table 4 that in the services requested by the UE, voice services have high priority, mobile broadband services have standard priority, and ultra-reliable services have low priority. Good.

For example, when comparing the service requirement list of the UE with the service capability list of the service network, the RAN node needs to preferentially select a service network capable of providing high priority service for the UE. For example, if a service capability list that matches the service requirement list is to be selected from the service capability list set, a service capability list containing high priority voice services may preferably be selected.

Optionally, if multiple service capability lists simultaneously contain high priority services in the service requirement list, the service capability list containing the second highest priority service in the service requirement list may contain multiple service capabilities. The list may be determined and the rest may be inferred by analogy until the best matching service capability list is found. In this case, the service network corresponding to the service capability list can provide the best matching service to the UE.

For example, if the service capability list of the UE is shown in Table 4, the service network 1 can provide voice service and mobile broadband service, and the service network 2 provides voice service and ultra-reliable service. And the service network 3 is capable of providing mobile broadband services, the service network 1 and the service network 2 are high priority services when the high priority service requested by the UE is a voice service. When the second high priority service requested by the UE is a mobile broadband service and the service network 1 is capable of providing the mobile broadband service, the service network may determine that May be determined to be the service network that can provide the best matching service to. Indeed, if there is a service network 4 capable of simultaneously supporting voice services, mobile broadband services, and ultra-high reliability services, high priority services other than voice services and mobile broadband services required by the UE are When it is an ultra-reliable service, the service network 4 may be determined to be the service network that provides the best matching service to the UE.

Optionally, the priority of each service may change in different application scenarios. In this case, the service network may be selected according to the priority of the service in the specific application scenario. For example, in the case of a vehicle type UE, the current UE simultaneously supports the inter-vehicle communication service and the mobile broadband service, but the current network only supports the service network and the mobile broadband service that support only the inter-vehicle communication service. Service network to In this case, because the inter-vehicle communication service has a higher priority, the UE may preferentially select a service network that supports the inter-vehicle communication service during driving to ensure automatic driving, and the vehicle is in service. When stopped in the area, the UE may preferably select the mobile broadband network to watch the video.

In the prior art, each DECOR serves only a particular type of user. If the UE is moved to a new DECOR, the UE may not be able to obtain the service that meets the requirements. However, according to the method for selecting a service network in this embodiment of the present invention, the priority of the service requested by the UE is defined, and when selecting the service network for the UE, the RAN node or Allow a network device, such as a UE, to select a service network that can provide high priority services to the UE. The method for selecting a service network in this embodiment of the invention may also support if the service network with the best matching capabilities is always selected for the UE in the roaming scenario.

FIG. 3 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The method of FIG. 3 includes the following steps.

S301. The RAN node sends a first RRC message to the UE, the first RRC message carrying a service capability list set comprising a service capability list of at least one service network, each service capability list being a service capability list. A first RRC message, which includes at least one service supported by the service network, the first RRC message serving the UE according to the service requirement list and the service capability list set of the UE. Used by the UE to determine the first identifier of the service network of the UE, the service capability list corresponding to the first identifier includes all or some of the services in the service requirement list, and the service requirement list is the UE Includes at least one service required by.

S302. The RAN node receives a second RRC message sent by the UE, the second RRC message carrying a first identifier, the second RRC message serving the first service network to the UE Used to tell what to do.

According to the method for selecting a service network in the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. May be done, so that the process of selecting a service network can be simplified if the service network changes dynamically, and signaling can be saved.

Optionally, the second RRC message sent by the UE may further carry the service requirement list of the UE. On the other hand, the method sends a service requirement list to the first service network by the RAN node, and the first service network sends a notification message to the UE according to the service requirement list and the service capability list of the service network. The step of transmitting, the notification message being used to notify the UE of a service in the service requirement list and included in the service capability list of the first service network. May be included.

FIG. 4 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The method of FIG. 4 includes the following steps.

S401. The UE determines a service requirement list, which includes at least one service required by the UE.

S402. The UE sends an RRC message to the RAN node, the RRC message carries the service requirement list of the UE, the RRC message according to the service requirement list and from a service capability list set including a service capability list of at least one service network, Used by the RAN node to determine the first identifier of the first service network serving the UE, the service capability list corresponding to the first identifier is the whole or part of the services in the service requirement list. And each service capability list includes an identifier of a service network corresponding to the service capability list and includes at least one service supported by the service network.

According to the method for selecting a service network in the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. May be done, so that the process of selecting a service network can be simplified if the service network changes dynamically, and signaling can be saved.

Optionally, the method comprises: by the UE, receiving a notification message sent by the UE to the UE according to the service requirement list and the service capability list of the service network, the notification message being in the service requirement list. May further be used to inform the UE about the services included in the service capability list of the service network.

FIG. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The method of FIG. 5 includes the following steps.

S501. The management device receives the service capability list of the service network transmitted by the service network, the service capability list including an identifier of the service network and at least one service supported by the service network.

S502. The management device sends the service capability list to the RAN node.

According to the method for managing a service network in this embodiment of the present invention, if the service network changes dynamically, the status of the service network may be updated to the RAN node in time, and the RAN node may , So that the service capability list of a network slice can be added, updated, or deleted, and finally the process of selecting a service network in case the service network changes dynamically can be simplified. , And so that signaling can be saved.

Optionally, the method is a step of generating an indication message by the management device, the indication message being used to instruct the RAN node to add, change or delete a service capability list of the service network. , And sending, by the management device, an indication message to the RAN node.

According to the method for selecting a service network and the method for managing a service network, a detailed procedure of selecting a service network in an embodiment of the present invention will be described later with reference to FIGS. 6 to 10. Explained.

As shown in FIG. 6, FIG. 6 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 6 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 6 includes the following steps.

S601. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S602. The RAN node determines a service capability list that corresponds to at least one network slice separately. For example, if there are two network slices in the network, the service capability list of one network slice includes voice service and mobile broadband service, and the service capability list of the other network slice is voice service, inter-vehicle communication service. , And ultra-reliable service. The service capability list of these network slices may be configured locally at the RAN node or may be sent to the RAN node during deployment of the network slice. The service capability lists on the RAN node form a service capability list set. The RAN node may further delete the service capability list of the network slice that is out of service due to the failure from the service capability list set. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario.

S603. When the RRC connection is established between the UE and the RAN node, the UE sends the service requirement list of the UE to the RAN node when sending the RRC message to the RAN node.

S604. After receiving the service requirement list sent by the UE, the RAN node compares the services in the UE's service requirement list with the services in the plurality of service capability lists on the RAN node and compares the services in the service capability list. Of the service capability list including all or part of the network slices, the network slice identifier is obtained, and the network slice corresponding to the identifier is the network slice that provides the service to the UE.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and broadband services, and the other network slice can provide voice services. It may be appreciated that the second network slice may provide more services to the UE than the first network slice if it is able to provide inter-vehicle communication services and ultra-reliable services, and thus the second May be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice can provide high priority voice service and medium priority mobile broadband service, and the second network slice can provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S605. The RAN node sends the service requirement list of the UE to the selected network slice.

S606. The network slice sends a notification message, such as a NAS accept message, to the UE to inform the UE about the services that can be provided to the UE by the network slice. The services that can be provided to the UE by the network slice are the services that are in the service requirement list and that are included in the service capability list of the network slice.

In addition, normal service procedures may be performed between the UE and the selected network slice.

According to the method for selecting the service network in this embodiment of the present invention, the RAN node selects the service network of the UE and prevents the HSS from initiating a large amount of subscription data update procedure. As much as possible and by allowing large amounts of TAU and redirection processes to be avoided, the risk of emergence of signaling storms is reduced. It is further guaranteed that the service network or optimal service network that matches the service requirements of the UE can be matched regardless of whether the UE is in the local network or in the roaming scenario accessing the visited network. You can

As shown in FIG. 7, FIG. 7 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 7 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 7 includes the following steps.

S701. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S702. The RAN node determines a service capability list that corresponds to at least one network slice separately. For example, if there are two network slices in the network, the service capability list of one network slice includes voice service and mobile broadband service, and the service capability list of the other network slice is voice service, inter-vehicle communication service. , And ultra-reliable service. The service capability list of these network slices may be configured locally at the RAN node or may be sent to the RAN node during deployment of the network slice. The service capability lists on the RAN node form a service capability list set. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario. The RAN node may further delete the service capability list of the network slice that is out of service due to the failure from the service capability list set.

S703. When the RRC connection is established between the UE and the RAN node, the RAN node transfers the service capability list set including the service capability lists of the plurality of network slices to the UE in the RRC message.

S704. After receiving the service capability list set sent by the RAN, the UE compares the services in the service capability list of the UE with the services in the plurality of service capability lists obtained from the RAN node, and Select a service capability list that includes all or some of the services, obtain an identifier of the network slice in the service capability list, the network slice corresponding to the identifier provides the service and is selected by the UE for the UE. Network slice.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and mobile broadband services, and the other network slice can provide voice services. It may be understood that the second network slice may provide more services to the UE than the first network slice, if it can provide inter-vehicle communication service, and ultra-reliable service, and thus Two network slices may be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice may provide high priority voice service and medium priority mobile broadband service, and the second network slice may provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S705. The UE initiates an RRC message such as a connect message to the RAN node or a TAU request message. The RRC message sent by the UE to the RAN node carries the NAS message defined in the standard and further comprises the identifier of the network slice selected by the UE and the service requirement list. In this way, normal service procedures may be performed between the UE and the selected network slice.

S706. The RAN node sends the service requirement list of the UE to the selected network slice so that the network slice understands the service required by the UE and then allocates resources appropriately to serve the UE. To do.

In this case, the UE has compared the service requirement list of the UE with the service capability list of the selected network slice so that the UE is of the UE and can be supported by the currently selected service network. Having already explicitly identified the service, the network slice does not need to inform the UE about the services that can be provided to the UE by the network slice.

According to the method for selecting the service network in this embodiment of the present invention, the UE may select the service network of the UE and prevent the HSS from initiating a large amount of subscription data update procedure. As well as allowing large amounts of TAU and redirection processes to be avoided, reducing the risk of emergence of signaling storms. It is further ensured that the service network or the optimal service network that matches the service requirements of the UE can be matched regardless of whether the UE is in the local network or in the roaming scenario accessing the visited network. You can

As shown in FIG. 8, FIG. 8 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 8 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 8 includes the following steps.

S801. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S802. The management device determines the service capability list of the newly added network slice or the updated service capability list of the existing service slice. For example, the management device may obtain a service capability list for a network slice that includes voice services and mobile broadband services, and a service capability list for a network slice that includes voice services, inter-vehicle communication services, and ultra-reliable services. ..

S803. The management device sends the service requirement list of the network slice to the RAN node. The RAN node receives the network slice service requirement list sent by the management device and updates the service capability list set. The service capability list forms a service capability list set on the RAN node. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario.

S804. When the RRC connection is established between the UE and the RAN node, the UE sends the service requirement list of the UE to the RAN node when sending the RRC message to the RAN node.

S805. After receiving the service requirement list sent by the UE, the RAN node compares the services in the service requirement list of the UE with the services in the updated service capability list on the RAN node, A service capability list including all or some of the services is selected, the identifier of the network slice is obtained, and the network slice corresponding to the identifier is the network slice that serves the UE.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and broadband services, and the other network slice can provide voice services. It may be appreciated that the second network slice may provide more services to the UE than the first network slice if it is able to provide inter-vehicle communication services and ultra-reliable services, and thus the second May be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice may provide high priority voice service and medium priority mobile broadband service, and the second network slice may provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S806. The RAN node sends the service requirement list of the UE to the network slice.

S807. The network slice sends a notification message, such as a NAS accept message, to the UE to inform the UE about the services that can be provided to the UE by the network slice. The services that can be provided to the UE by the network slice are the services that are in the service requirement list and that are included in the service capability list of the network slice.

In addition, normal service procedures may be performed between the UE and the selected network slice.

Optionally, in S802, the management device may determine out-of-service network slices. On the other hand, in S803, the management device sends an instruction message to the RAN node to instruct the RAN node to delete the service capability list of the network slice that is out of service. The RAN node receives the instruction message sent by the management device, deletes the service capability list of the network slice that is out of service, and updates the service capability list set according to the instruction message. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario. In this case, in S805, after receiving the service requirement list sent by the UE, the RAN node deletes the service in the service requirement list of the UE from the service capability list of the network slice on the RAN node which is out of service. Compared with the services in the service capability list in the service capability list set being set.

As shown in FIG. 9, FIG. 9 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 9 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 9 includes the following steps.

S901. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S902. The management device determines the service capability list of the newly added network slice or the updated service capability list of the existing service slice. For example, the management device may obtain a service capability list for a network slice that includes voice services and mobile broadband services, and a service capability list for a network slice that includes voice services, inter-vehicle communication services, and ultra-reliable services. ..

S903. The management device sends the service requirement list of the network slice to the RAN node. The RAN node receives the network slice service requirement list sent by the management device and updates the service capability list set. As shown in Table 3, the service capability list forms a service capability list set on the RAN node. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario.

S904. When the RRC connection is established between the UE and the RAN node, the RAN node transfers the updated service capability list set including the service capability lists of the plurality of network slices to the UE in an RRC message.

S905. After receiving the service capability list set sent by the RAN, the UE compares the services in the service capability list of the UE with the services in the plurality of service capability lists obtained from the RAN node, and Select a service capability list that includes all or some of the services, obtain an identifier of the network slice in the service capability list, the network slice corresponding to the identifier provides the service and is selected by the UE for the UE. Network slice.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and broadband services, and the other network slice can provide voice services. It may be appreciated that the second network slice may provide more services to the UE than the first network slice if it is able to provide inter-vehicle communication services and ultra-reliable services, and thus the second May be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice may provide high priority voice service and medium priority mobile broadband service, and the second network slice may provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S906. The UE initiates an RRC message such as a connect message to the RAN node or a TAU request message. The RRC message sent by the UE to the RAN node carries the NAS message defined in the standard and further comprises the identifier of the network slice selected by the UE and the service requirement list. In this case, normal service procedures may be performed between the UE and the selected network slice.

S907. The RAN node sends the service requirement list of the UE to the network slice so that the network slice understands the services required by the UE and then allocates resources appropriately to serve the UE.

In this case, the UE has compared the service requirement list of the UE with the service capability list of the selected network slice so that the UE is of the UE and can be supported by the currently selected service network. Having already explicitly identified the service, the network slice does not need to inform the UE about the services that can be provided to the UE by the network slice.

Optionally, in S902, the management device may determine out-of-service network slices. On the other hand, in step S903, the management device sends an instruction message to the RAN node to instruct the RAN node to delete the service capability list of the network slice that is out of service. The RAN node receives the instruction message sent by the management device, deletes the service capability list of the network slice that is out of service, and updates the service capability list set according to the instruction message. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario. In this case, in S905, after receiving the service requirement list transmitted by the UE, the RAN node selects the services in the service requirement list of the UE as the service capability list of the network slice that is on the RAN node and is out of service. Compare with the services in the service capability list in the deleted service capability list set.

The method and process for selecting a service network is described in detail above by FIGS. The RAN node, the UE and the management device involved in the selection of the service network are described in detail below with reference to FIGS. 10 to 13.

FIG. 10 is a schematic block diagram illustrating a RAN node according to an exemplary embodiment of the present invention. The RAN node shown in FIG. 10 includes a processor 1001, a receiver 1002, and a transmitter 1003.

The receiver 1002 is configured to receive the message and the transmitter 1003 is configured to send the message. The processor 1001 is configured to determine a service requirement list of the user equipment UE, the service requirement list including at least one service requested by the UE. The processor 1001 is further configured to determine a service capability list set including a service capability list of at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list, depending on the service network. Includes at least one service supported. The processor 1001 is further configured to determine a first identifier of a first service network serving the UE according to the service requirement list and the service capability list set, the service capability list corresponding to the first service network. Includes all or part of the services in the service requirements list.

According to the network device in this embodiment of the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. Also, the process of selecting a service network can be simplified if the network changes dynamically, and signaling can be saved.

In this embodiment of the invention, optionally, the processor 1001 includes the maximum amount of services in the service requirement list, in particular according to the service requirement list and the service capability list set, and the service capability list in the service capability list set. Is specifically configured to determine an identifier corresponding to the first identifier of the first service network serving the UE.

In the embodiment of the present invention, the network device shown in FIG. 10 may be a UE or a RAN node. If the network device is a UE, the receiver 1002 is specifically configured to receive the RRC message sent by the RAN node, which carries the service capability list set. Processor 1001 is specifically configured to determine the service capability list set according to the RRC message received by receiver 1002. The transmitter 1003 is further specifically configured to send another RRC message to the RAN node, the RRC message carrying an identifier of the service network serving the UE.

Optionally, the RRC message sent by the UE to the RAN node further carries the service requirement list of the UE, wherein the RAN node provides a message carrying the service requirement list to the UE the first service Try to send to the network.

If the network device shown in FIG. 10 is a RAN node, the receiver 1002 is configured to receive the RRC message sent by the UE, which carries the service requirement list of the UE. The processor 1001 is specifically configured to determine the service requirement list according to the RC message received by the receiver 1002. The receiver 1002 is further configured to receive the service capability list of the service network sent by the management device, or to receive the service capability list of the at least one service network sent by the at least one service network. It The processor 1001 is further specifically configured to determine a service capability list set including a service capability list of at least one service network.

Optionally, transmitter 1003 is specifically configured to send a message carrying the service requirement list to the first service network such that the first service network includes the service requirement list and the first service network. Send a notification message to the UE according to the service capability list. The notification message is used to notify the UE about services in the service requirement list and included in the service capability list of the first service network.

Optionally, receiver 1002 is further configured to receive an indication message sent by the management device, the indication message to add, modify, or delete the service capability list of the at least one serving network. Used to instruct. The processor 1001 is further configured to add, change or delete the service capability list of at least one service network in the service capability set according to the instruction message.

Optionally, the service requirement list of the UE may further include a priority for each of the at least one service requested by the UE. In this case, the processor 1001 searches the service capability list set according to the service in the service requirement list in descending order of the priority corresponding to the service, and determines the first identifier of the first service network serving the UE. Specifically configured to.

In this embodiment of the invention, processor 1001 is a Central Processing Unit (abbreviated as "CPU"), or processor 1001 is another general purpose processor, digital signal processor (DSP), special purpose integrated circuit ( It should be understood that it may be an ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. A general purpose processor may be a microprocessor, or the processor may be any standard processor or the like.

FIG. 11 is a schematic block diagram illustrating a RAN node according to an exemplary embodiment of the present invention. The RAN node shown in FIG. 11 includes a transmitter 1101 and a receiver 1102.

The receiver 1102 is configured to receive the service capability list of the at least one service network sent by the management device or receive the service capability list of the at least one service network sent by the at least one service network. To be done. Each service capability list includes an identifier of the service network corresponding to the service capability list and includes at least one service supported by the service network. The transmitter 1101 is configured to send the first RRC message to the UE. The first RRC message carries a service capability list set including a service capability list of at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list and supported by the service network. A first RRC message comprising at least one service that is used by the UE for determining the first identifier from the service capability list set according to the service requirement list of the UE and the service capability list corresponding to the first identifier. Includes all or part of the services in the service requirement list to cause the first service network corresponding to the first identifier to provide the service to the UE, the service requirement list comprising at least 1 Including one service. The receiver 1102 is configured to receive the second RRC message sent by the UE. The second RRC message carries the first identifier, and the second RRC message is used to indicate that the first service network serves the UE.

According to the RAN node in this embodiment of the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. Also, the process of selecting a service network can be simplified if the network changes dynamically, and signaling can be saved.

Optionally, the second RRC message sent by the UE may further carry the service requirement list of the UE. The transmitter 1101 is further configured to send the service requirement list to the first service network, and the first service network sends the notification message to the UE according to the service requirement list and the service capability list of the service network. To do. The notification message is used to notify the UE about services in the service requirement list and included in the service capability list of the first service network.

Optionally, receiver 1102 is further configured to receive the service capability list of the service network sent by the management device.

Optionally, receiver 1102 is further configured to receive an indication message sent by the management device, the indication message to add, modify, or delete the service capability list of at least one serving network. Used to instruct. In contrast, the RAN node may further include a processor configured to add, change, or delete the service capability list of at least one service network in the service capability set according to the indication message.

FIG. 12 is a schematic block diagram illustrating a UE according to an embodiment of the present invention. The UE shown in FIG. 12 includes a processor 1201 and a transmitter 1202.

The processor 1201 is configured to determine a service requirement list for the UE, the service requirement list including at least one service requested by the UE. The transmitter 1202 is configured to send the RRC message to the RAN node. The RRC message carries a service requirement list, and the RRC message is used by the RAN node to determine a first identifier according to the service requirement list from a service capability list set including a service capability list of at least one service network, The service capability list corresponding to the first identifier includes all or some of the services in the service requirement list so that the first service network corresponding to the first identifier serves the UE, The capability list includes an identifier of the service network corresponding to the service capability list and includes at least one service supported by the service network.

According to the UE in this embodiment of the present invention, even if the service network dynamically changes, a service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. Well, so that the process of selecting a service network in case the network changes dynamically can be simplified and signaling can be saved.

Optionally, the UE may further comprise a receiver configured to receive the notification message sent to the UE by the first service network according to the service requirement list and the service capability list of the first service network. .. The notification message is used to notify the UE about services in the service requirement list and included in the service capability list of the first service network.

Optionally, the service requirement list of the UE may further include a priority for each of the at least one service requested by the UE. The processor 1201 may search the service capability list set according to the service in the service requirement list in descending order of priority corresponding to the service to determine a first identifier of a first service network to serve the UE. Especially composed.

In this embodiment of the invention, the processor 1201 is a central processing unit (abbreviated as “CPU”), or the processor 1201 is another general purpose processor, digital signal processor (DSP), special purpose integrated circuit ( It should be appreciated that it may be an ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. A general purpose processor may be a microprocessor, or the processor may be any standard processor or the like.

FIG. 13 is a schematic block diagram showing a management device according to an embodiment of the present invention. The management device shown in FIG. 13 includes a receiver 1301 and a transmitter 1302. The service capability list of the service network is deployed to the management device.

The receiver 1301 is configured to receive a service capability list of the service network transmitted by the service network, the service capability list including an identifier of the service network and at least one service supported by the service network. The transmitter 1302 is configured to send the service capability list of the service network to the RAN node.

According to the management device in this embodiment of the present invention, when the service network changes dynamically, the status of the service network may be updated to the RAN node in time, and the RAN node may change the service capability of the network slice. Allowing the list to be added, updated, or deleted so that finally the process of selecting a service network in case the service network changes dynamically can be simplified and signaling is saved. To be able to

Optionally, the management device may further include a processor configured to generate the instruction message, the instruction message instructing the RAN node to add, modify, or delete the service capability list of the service network. Used for. The transmitter 1392 is further configured to send an indication message to the RAN node.

In this embodiment of the invention, the processor is a central processing unit (abbreviated as "CPU"), or the processor is another general purpose processor, digital signal processor (DSP), special purpose integrated circuit (ASIC). , Field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor, or the processor may be any standard processor or the like.

Units and algorithm steps may be implemented by electronic hardware or a combination of computer software and electronic hardware, in combination with the examples described in the embodiments disclosed in this specification. You may understand that. Whether the function is performed by hardware or software depends on the particular application of the technical solution and the design constraints. Persons skilled in the art may use different methods to implement the functionality described for each particular application, but their implementation should not be considered as departing from the scope of the present invention.

For the purposes of brief and concise description, with respect to the detailed operation process of the above-described system, apparatus, and unit, reference may be made to the corresponding process in the above-described method embodiments, and details are not described herein again. However, it may be clearly understood by a person skilled in the art.

It should be appreciated that in some embodiments provided herein, the disclosed systems, devices, and methods may be implemented in other ways. For example, the described apparatus embodiments are merely exemplary. For example, the unit part is merely a logical function part, and may have other parts in an actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not performed. In addition, the displayed or described mutual couplings or direct couplings or communication connections may be implemented by using some interfaces. Indirect couplings or communication connections between devices or units may be implemented electronically, mechanically, or otherwise.

A unit described as a separate part may or may not be physically separated, and a part displayed as a unit may be a physical unit or a physical unit. It may not be present and may be located in one location or distributed over multiple network units. Some or all of the units may be selected depending on the actual requirements for achieving the purpose of the solution of the embodiment.

If implemented in the form of software functional units and sold or used as a stand-alone product, the functions may be stored on a computer-readable storage medium. Based on such an understanding, basically the technical solution of the present invention, or the part contributing to the prior art or part of the technical solution may be implemented in the form of a software product. The software product is stored on a storage medium and directs a computing device (which may be a personal computer, server, network device, etc.) to perform all or some of the method steps described in embodiments of the invention. Including a plurality of instructions for performing. The aforementioned storage medium stores program code, such as a USB flash drive, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. Including any medium that can be.

The foregoing descriptions are merely specific embodiments of the present invention, but are not intended to limit the protection scope of the present invention. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present invention shall fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

The present invention relates to the field of mobile communications, and more particularly to a method, a network device, a radio access network (RAN) node and a user equipment and a management device for selecting a service network.

At present, in an evolved packet core (Evolved Packet Core, EPC), when a dedicated core (DECOR) network dynamically changes, for example, when DECOR is out of service, user equipment that supports DECOR ( User Equipment, UE) needs to be moved to another DECOR, ie the corresponding DECOR is reselected for the UE.

In the existing DECOR network selection technology, the corresponding DECOR is mainly selected for the UE based on the concept of relocation. The specific steps of the network selection technology are as follows.

(1) If the DECOR changes dynamically, for example if the network creates a new DECOR, or if the DECOR is out of service, the Home Subscriber Server (HSS) may use the subscription data procedure. To update the UE subscription data stored in the Mobility Management Entity (MME) and the MME sends an acknowledgment message to the HSS.

(2) If the UE is idle, the MME needs to initiate a paging procedure to restore the channel between the MME and the UE.

(3) When the UE is in the connected state, the MME initiates a Globally Unique Temporary UE Identity (GUTI) relocation procedure to release radio resources and the UE updates the tracking area (Tracking Area). Update, TAU) Request procedure is started.

(4) When the UE initiates the TAU request procedure to access the original DECOR, the original DECOR is unsuitable to continue serving the UE because the UE subscription data has been updated . Then, the original DECOR finds a suitable new DECOR for the UE according to the updated subscription data, and then the original DECOR initiates a re-guidance procedure to re-route the UE's request to the new DECOR. Instruct the RAN node to transmit.

(5) The new DECOR accepts the access request of the UE and services the UE so that the migration process of the UE is performed.

The service network selection technology has the following problems. If the UE that needs to be migrated performs the TAU redirection procedure and the re-guidance procedure to migrate the UE registered in the original DECOR to the new DECOR, a signaling storm is easily triggered, and in addition, In order to move the UE to another DECOR, the HSS needs to initiate a subscription data update procedure to update the subscription data of all UEs currently registered in the DECOR. For HSS, the signaling load is overly heavy.

The present invention provides a method for selecting a service network, a radio access network node, and a user equipment so that the process of selecting a service network when the service network changes dynamically can be simplified. So that and signaling can be saved.

According to a first aspect, there is provided a method for selecting a service network, the method comprising determining a service requirement list of a UE, the service requirement list comprising at least one service requested by the UE. And a step of determining a service capability list set including a service capability list of at least one service network, each service capability list including an identifier of a service network corresponding to the service capability list, Determining at least a first identifier of a first service network serving a UE according to a service requirement list and a service capability list set, the first identifier including at least one service supported; The service capability list corresponding to the service network includes steps including all or some of the services in the service requirement list.

With reference to a first aspect, in a first possible implementation, determining a first identifier of a first service network serving a UE according to a service requirement list and a service capability list set. , The service capability list corresponding to the first service network includes all or some of the services in the service requirement list, the step comprises the maximum amount of services in the service requirement list according to the service requirement list and the service capability list set. And determining an identifier corresponding to the service capability list in the service capability list set as the first identifier.

With reference to the first aspect or the first possible embodiment, in a second possible embodiment, the method is performed by a UE and comprises a service capability list set comprising a service capability list of at least one service network. The determining step is a step of receiving, by a UE, a first RRC message sent by a RAN node, the first RRC message carrying a service capability list set, and a first RRC message. And determining a service capability list set according to the method, the method transmitting a second RRC message by the UE to the RAN node, the second RRC message carrying the first identifier, The second RRC message further comprises steps used to instruct the first service network to serve the UE.

With reference to the second possible embodiment, in a third possible embodiment, the second RRC message further carries the service requirement list so that the RAN node can send the service requirement list to the first service network. Try to send.

With reference to the first aspect or first possible embodiment, in a fourth possible embodiment, the method is performed by a RAN node, and the step of determining a service requirement list of the UE is transmitted by the UE. Receiving a third RRC message by the RAN node, the third RRC message carrying a service capability list, and determining the service capability list according to the third RRC message. Determining a service capability list set comprising a service capability list of at least one service network, the method comprising: receiving by the RAN node a service capability list of the at least one service network sent by the management device, or at least Receiving a service capability list of at least one service network sent by the one service network, and determining a service capability list set including the service capability list of the at least one service network.

With reference to the third possible embodiment or the fourth possible embodiment, in the fifth possible embodiment, the method comprises a message carrying a service requirement list and a first identifier by a RAN node, Sending to the first service network, causing the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the first service network, the notification message comprising: The method further comprises steps used to inform the UE about services in the service requirement list and included in the service capability list of the first service network.

With reference to any one of the third to fifth possible embodiments, in a sixth possible embodiment, the method comprises the step of receiving, by a RAN node, an indication message sent by a management device. And the indication message is used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, and the steps, and at least one in the service capability set according to the instruction message. Further adding, modifying, or deleting the service capability list of the service network by the RAN node.

With reference to the first aspect, or any one of the first to sixth possible implementations, in a seventh possible implementation, the service requirement list further comprises a priority corresponding to the service, Determining the first identifier of the first service network serving the UE according to the service requirement list and the service capability list set, the service capability according to the services in the service requirement list in descending order of priority corresponding to the service. Retrieving the list set to determine a first identifier of a first service network serving the UE.

According to a second aspect, a method for selecting a service network is provided, the method receiving, by a RAN node, a service capability list of at least one service network sent by a management device, or at least Receiving a service capability list of at least one service network sent by one service network, each service capability list including an identifier of the service network corresponding to the service capability list and supported by the service network. Transmitting at least one service to the UE by the RAN node, the first RRC message comprising at least one service, the first RRC message comprising a service capability list of at least one service network. And carrying a set, the first RRC message is used by the UE to determine a first identifier of a first service network serving the UE according to a service requirement list and a service capability list set of the UE, The service capability list of the first service network includes all or some of the services in the service requirement list, the service requirement list including at least one service requested by the UE, and a step transmitted by the UE. Receiving a second RRC message by a RAN node, the second RRC message carrying a first identifier of a first service network in at least one service network, the second RRC message Is used for instructing the first service network to service the UE.

With reference to the second aspect, in a first possible implementation, the second RRC message further carries a service requirement list, the method comprising the service requirement list by a RAN node to a first service network. Sending the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the first service network, the notification message being in the service requirement list. Further used to inform the UE about the services included in the service capability list of the first service network.

With reference to the second aspect or the first possible embodiment, in the second possible embodiment, the RAN node is further configured to receive the instruction message sent by the management device, the instruction message being , Used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the RAN node according to the instruction message the service capability list of at least one service network in the service capability set. Are further configured to add, change, or delete.

According to a third aspect, there is provided a method for selecting a service network, the method determining by a UE a service requirement list of a UE, the service requirement list being at least requested by the UE. Comprising one service, and transmitting, by the UE, an RRC message to a RAN node, the RRC message carrying a service requirement list, the RRC message comprising the service requirement list and at least one service network service. The service capability list of the first service network is used by the RAN node to determine the first identifier of the first service network serving the UE according to the service capability list set including the capability list, the service capability list of the first service network is Including all or some of the services in the list, each service capability list including an identifier of a service network corresponding to the service capability list, and including at least one service supported by the service network.

With reference to a third aspect, in a first possible implementation, the method comprises a notification message sent by a first service network to a UE according to a service requirement list and a service capability list of the first service network, the UE The receiving message according to claim 1, further comprising: the notification message being used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network. ..

According to a fourth aspect, a method for managing a service network is provided, the method comprising: receiving, by a management device, a service capability list of the service network transmitted by the service network, the service capability comprising: The list includes a step of including an identifier of the service network and at least one service supported by the service network, and a step of transmitting, by the management device, the service capability list to the RAN node.

With reference to a fourth aspect, in a first possible implementation method, the method comprises the step of generating an instruction message by a management device, the instruction message adding, changing, a service capability list of a service network, Or further used to instruct the RAN node to delete, and by the management device sending an instruction message to the RAN node.

According to a fifth aspect, there is provided a network device for selecting a service network, the network device including a receiver, a processor and a transmitter, the receiver configured to receive the message. The transmitter is configured to send the message, the processor is configured to determine a service requirement list of the user equipment UE, the service requirement list including at least one service requested by the UE, the processor at least Further configured to determine a service capability list set including service capability lists of one service network, each service capability list including an identifier of a service network corresponding to the service capability list, and at least one supported by the service network. Corresponding to the first service network, wherein the processor is further configured to determine a first identifier of the first service network serving the UE according to the service requirement list and the service capability list set. The service capability list to be included includes all or some of the services in the service requirement list.

With reference to a fifth aspect, in a first possible implementation, the processor includes the maximum amount of services in the service requirement list according to the service requirement list and the service capability list set and is in the service capability list set. It is specifically configured to determine the identifier corresponding to the service capability list as the first identifier.

With reference to the fifth aspect or the first possible implementation, in the second possible embodiment, the network device is a UE and the receiver receives the first RRC message sent by the RAN node. Configured to receive, the first RRC message carries a service capability list set, and the processor is specifically configured to determine the service capability list set according to the first RRC message received by the receiver and transmit The machine is configured to send a second RRC message to the RAN node, the second RRC message carrying the first identifier.

With reference to the second possible embodiment, in a third possible embodiment the second RRC message further carries the service requirement list, the RAN node carrying the service requirement list first. To send to the service network.

With reference to the fifth aspect or the first possible implementation, in the fourth possible implementation, the network device is a RAN node and the receiver receives the third RRC message sent by the UE. The third RRC message is configured to receive, the third RRC message carries a service requirement list, and the processor is specifically configured to determine the service requirement list according to the third RRC message received by the receiver, the receiver being The processor is further configured to receive a service capability list of the service network sent by the management device, or to receive a service capability list of the at least one service network sent by the at least one service network, the processor comprising: More specifically configured to determine a service capability list set that includes a service capability list of at least one service network.

With reference to the third possible embodiment or the fourth possible embodiment, in a fifth possible embodiment the transmitter sends a message carrying a service requirement list to the first service network. Configured to cause the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the first service network, the notification message being in the service requirement list Used to inform the UE about the services included in the service capability list of the service network of the.

With reference to any one of the third to fifth possible embodiments, in the sixth possible embodiment the receiver is further configured to receive the indication message sent by the management device, The indication message is used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, and the processor follows the instruction message to the service of at least one service network in the service capability set. It is further configured to add, change, or delete capability lists.

With reference to the fifth aspect, or any one of the first to sixth possible implementations, in the seventh possible implementation, the service requirement list comprises a list of at least one service requested by the UE. The processor further includes a priority corresponding to each, and the processor searches the service capability list set according to the service in the service requirement list in descending order of the priority corresponding to the service, and determines the service capability list set of the first service network serving the UE. Specially configured to determine the first identifier.

According to a sixth aspect, there is provided a RAN node for selecting a service network, comprising a transmitter and a receiver, the receiver receiving a service capability list of at least one service network transmitted by a management device. Or receiving a service capability list of at least one service network sent by the at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list, Including at least one service supported by the service network, the transmitter configured to send a first RRC message to the UE, the first RRC message including a service capability list of the at least one service network The first RRC message carrying the service capability list set is according to the service requirement list of the UE, by the UE for determining a first identifier of a first service network serving the UE from the service capability list set. Used, the service capability list of the first service network includes all or some of the services in the service requirement list, the service requirement list includes at least one service requested by the UE, and the receiver is the UE Configured to receive a second RRC message sent by the second RRC message, the second RRC message carrying a first identifier of a first service network in at least one service network, the second RRC message being , A first service network is used to instruct the UE to serve.

With reference to the sixth aspect, in the first possible implementation, the second RRC message further carries a service requirement list, and the transmitter causes the service requirement list to be transmitted to the first service network. Further configured, the first service network sends a notification message to the UE according to the service requirement list and the service capability list of the service network, wherein the notification message is in the service requirement list and the service of the first service network. It is used to inform the UE about the services included in the capability list.

With reference to the sixth aspect or the first possible embodiment, in the second possible embodiment, the receiver is further configured to receive the instruction message sent by the management device, wherein the instruction message is , Used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the RAN node according to the instruction message the service capability list of at least one service network in the service capability set. Further including a processor configured to add, change, or delete.

According to a seventh aspect, there is provided a user equipment UE for selecting a service network, comprising a processor and a transmitter, the processor is configured to determine a service requirement list of the UE, the service requirement list being the UE. A transmitter configured to send an RRC message to the RAN node, the RRC message carrying a service requirement list, the RRC message comprising the service requirement list and the at least one service The service capability list of the first service network is used by the RAN node to determine the first identifier of the first service network serving the UE according to the service capability list set including the service capability list of the network, , All or part of the services in the service requirement list, each service capability list including an identifier of a service network corresponding to the service capability list and including at least one service supported by the service network.

With reference to a seventh aspect, in a first possible implementation, the UE receives a notification message sent to the UE by the first service network according to a service requirement list and a service capability list of the first service network. The notification message is further used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network.

According to an eighth aspect, there is provided a management device including a receiver and a transmitter, the receiver being configured to receive a service capability list of a service network transmitted by the service network, the service capability list comprising: The transmitter includes an identifier of the service network and at least one service supported by the service network, and the transmitter is configured to send the service capability list to the RAN node.

With reference to an eighth aspect, in a first possible implementation, the management device further comprises a processor configured to generate an instruction message, the instruction message adding a service capability list of the service network, Used to instruct the RAN node to modify or delete, the transmitter is further configured to send an instruction message to the RAN node.

According to a ninth aspect, there is provided a network device for selecting a service network including a processing module, the processing module configured to determine a service requirement list of a user equipment UE, the service requirement list being a UE. The at least one service required by the processing module is further configured to determine a service capability list set including a service capability list of the at least one service network, each service capability list corresponding to a service capability list. Including at least one service supported by the service network, the processing module comprising a first service network of a first service network serving the UE according to the service requirement list and the service capability list set. The service capability list further configured to determine the identifier and corresponding to the first service network includes all or part of the services in the service requirement list.

With reference to the ninth aspect, in a first possible implementation, the processing module includes the maximum amount of services in the service requirement list according to the service requirement list and the service capability list set, and the service module as the first identifier. It is specifically configured to determine the identifier corresponding to the service capability list in the capability list set as the first identifier.

With reference to the ninth aspect or the first possible embodiment, in the second possible embodiment, the network device is a UE, the UE further comprising a receiving module and a transmitting module, wherein the receiving module is a RAN. Configured to receive a first RRC message sent by a node, the first RRC message carrying a service capability list set, and the processing module according to the first RRC message received by the receiving module . Particularly configured to determine the list set, the sending module is configured to send a second RRC message to the RAN node, the second RRC message carrying the first identifier.

With reference to the second possible embodiment, in a third possible embodiment the second RRC message further carries the service requirement list, the RAN node carrying the service requirement list first. To send to the service network.

With reference to the ninth aspect or the first possible embodiment, in the fourth possible embodiment, the network device is a RAN node, the RAN node further comprising a receiving module, the receiving module being by a UE. The third RRC message is configured to receive the transmitted third RRC message, the third RRC message carries the service requirement list, and the processing module determines the service requirement list according to the third RRC message received by the receiving module. And a receiving module for receiving the service capability list of the service network sent by the management device or for receiving the service capability list of the at least one service network sent by the at least one service network. And the processing module is further specifically configured to determine a service capability list set that includes a service capability list of at least one service network.

In a fifth possible embodiment, with reference to the third possible embodiment or the fourth possible embodiment, the RAN node sends a message carrying a service requirement list to the first service network. Further comprising a sending module configured to cause the first service network to send a notification message to the UE according to the service requirement list and the service capability list of the first service network, the notification message comprising the service requirement list. It is used to inform the UE about services that are within and included in the service capability list of the first service network.

With reference to any one of the third to fifth possible embodiments, in the sixth possible embodiment the receiving module is further configured to receive the indication message sent by the management device, The indication message is used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the processing module according to the instruction message, of the at least one service network in the service capability set. It is further configured to add, change, or delete service capability lists.

With reference to the ninth aspect, or any one of the first to sixth possible implementations, in the seventh possible implementation, the service requirement list is a list of at least one service requested by the UE. The processor further includes a priority corresponding to each, and the processor searches the service capability list set according to the service in the service requirement list in descending order of the priority corresponding to the service, and determines the service capability list set of the first service network serving the UE. Specially configured to determine the first identifier.

According to a tenth aspect, there is provided a RAN node for selecting a service network, comprising a transmitting module and a receiving module, the receiving module receiving a service capability list of at least one service network transmitted by a management device. Or receiving a service capability list of at least one service network sent by the at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list, The transmitting module comprises at least one service supported by the service network, the transmitting module is configured to transmit a first RRC message to the user equipment UE, the first RRC message being a service capability list of the at least one service network. And a first RRC message for determining a first identifier of the first service network serving the UE according to the service requirement list and the service capability list set of the UE. Used by the UE, the service capability list of the first service network includes all or some of the services in the service requirement list, the service requirement list includes at least one service requested by the UE, and the receiving module is , A second RRC message that is configured to receive a second RRC message sent by the UE, the second RRC message carrying a first identifier of a first service network in at least one service network, and a second RRC message. The message is used to instruct the first service network to service the UE.

With reference to the tenth aspect, in the first possible implementation, the second RRC message further carries a service requirement list, and the transmitting module causes the service requirement list to be transmitted to the first service network. Further configured, the first service network sends a notification message to the UE according to the service requirement list and the service capability list of the service network, wherein the notification message is in the service requirement list and the service of the first service network. It is used to inform the UE about the services included in the capability list.

With reference to the tenth aspect or the first possible embodiment, in the second possible embodiment, the receiving module is further configured to receive the instruction message sent by the management device, wherein the instruction message is , Used to instruct the RAN node to add, change, or delete the service capability list of at least one service network, the RAN node according to the instruction message the service capability list of at least one service network in the service capability set. Further comprising a processing module configured to add, change, or delete.

According to an eleventh aspect, there is provided a UE for selecting a service network, comprising a processing module and a transmission module, the processing module being configured to determine a service requirement list of the UE, the service requirement list being the UE. The at least one service required by the sending module is configured to send an RRC message to the RAN node, the RRC message carrying a service requirement list, the RRC message being a service capability of the at least one service network. A service capability list of the first service network, used by the RAN node to determine the first identifier of the first service network serving the UE according to the service requirement list from the service capability list set including the list. Includes all or some of the services in the service requirement list, each service capability list including an identifier of a service network corresponding to the service capability list, and including at least one service supported by the service network.

With reference to the eleventh aspect, in a first possible implementation, the UE receives a notification message sent by the first service network to the UE according to a service requirement list and a service capability list of the first service network. The notification message is further configured to: and the notification message is used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network.

According to a twelfth aspect, there is provided a management device including a receiving module and a transmitting module, the receiving module being configured to receive a service capability list of a service network transmitted by the service network, the service capability list comprising: The sending module is configured to send the service capability list to the RAN node, including the identifier of the service network and at least one service supported by the service network.

With reference to the twelfth aspect, in the first possible implementation, the management device further comprises a processing module configured to generate the instruction message, the instruction message adding a service capability list of the service network. Used to instruct the RAN node to modify, modify, or delete, and the sending module is further configured to send an instruction message to the RAN node.

According to the technical solution of the present invention, when the service network changes dynamically, a service network that can meet the service requirements of the UE is provided to the UE according to the service requirements of the terminal device and the services supported by the service network. Will be selected against. According to the technical solution of the present invention, the process of selecting a service network when the service network changes dynamically can be simplified and signaling can be saved.

To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments of the present invention. Apparently, the accompanying drawings in the following description show only some embodiments of the present invention, and a person of ordinary skill in the art will understand that without accompanying creative efforts, other drawings may be included in the drawings. The drawing may be further derived.

FIG. 1 is a schematic diagram showing a network architecture system according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 3 is a schematic flow chart illustrating a method for managing a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. 5 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a network device for selecting a service network according to an embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a RAN node according to an exemplary embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a UE according to an embodiment of the present invention. FIG. 3 is a schematic block diagram illustrating a management device according to an exemplary embodiment of the present invention.

In order to further clarify the objects, technical solutions, and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described later with reference to the accompanying drawings of the embodiments of the present invention. Be clear and complete. Apparently, the described embodiments are a part of the embodiments of the present invention, and do not represent the entire embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

For ease of understanding, a brief description is provided below with reference to the application scenario of the embodiment of the invention shown in FIG. The architecture system shown in FIG. 1 may be specifically a 5G network architecture system or may be a conventional network architecture system such as a 4G network architecture system. The network architecture shown in FIG. 1 includes a UE, a RAN, and a service network.

The UE may be a conventional 4G terminal device or a terminal device supporting a 5G network. Depending on the actual application scenario and the type of terminal device, the UE may support one or more types of services. The service requirement list may be configured at the UE, and the service requirement list includes one or more types of services supported by the UE.

The RAN node in the RAN network may be a radio base station such as an evolved NodeB (e-UTRAN NodeB, eNodeB). After the radio channel is established between the UE and the RAN node, the UE accesses the service network by using the RAN node to obtain the service provided by the service network.

In the case of unique types of scenarios or unique user requirements, the serving network may provide customized services for particular types of UEs. Depending on the actual application scenario and the type of terminal device, the service network may support one or more types of service in order to ensure that the UE gets the full service. After the service network is created, a service capability list of the service network is defined to record the identifier of this network slice and the services supported by this network slice. The service network may be a dedicated core network within the EPC architecture or it may be a network slice within the 5G network.

In future 5G systems, networks will be further abstracted into network slices based on logical functions. Network slices are not logically divided into network elements, but are created in a “customized function+general purpose hardware” manner. According to such network structure, the operator is allowed to provide the network to the user as a service and meet the requirements of different users according to such indicators as rate, capacity, coverage, delay, reliability, security and availability. The entire network can be freely combined to meet.

Software Defined Network (SDN) and Network Function Virtualization (NFV) technologies are used to provide customized network slices for different types of communication users on the same infrastructure. Good. For example, the user equipment 1 of FIG. 1 may be a UE that uses mobile broadband (Mobile BroadBand, MBB), and the user equipment 2 may be a UE that uses vehicle-to-vehicle (V2V) communication. Alternatively, the user equipment 3 may be a UE using machine type communication (MTC), the service network 1 may be an MBB network slice, the service network 2 may be a V2V network slice. Or the service network 3 may be an MTC network slice.

The architectural system shown in FIG. 1 may further include a management device. A service capability list for one or more service networks is deployed on the management device, and the management device may be configured to manage the one or more service networks. If the management device is able to learn the service capability list of the service network, or if the service network is bad due to geographical constraints or for some other reason and it is out of service to the UE, the management device may change the service. Instruct the RAN node to delete the service capability list of the network.

It should be noted that the technical solution for selecting the service network in the embodiment of the present invention is not limited to the network architecture shown in FIG. Embodiments of the present invention may also be applied to other network architectures similar to network function modularization or servicing.

FIG. 2 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The method of FIG. 2 includes the following steps.

S201. Determine a service requirement list for the UE, the service requirement list including at least one service requested by the UE.

S202. Determining a service capability list set including service capability lists of at least one service network, each service capability list including an identifier of a service network corresponding to the service capability list and including at least one service supported by the service network. ..

S203. According to the service requirement list and the service capability list set, determine a first identifier of a first service network that provides a service to the UE, the service capability list of the first service network is all of the services in the service requirement list or Including some.

According to the method for selecting a service network in the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. May be done, so that the process of selecting a service network can be simplified if the service network changes dynamically, and signaling can be saved.

In this embodiment of the invention, the network device (such as HSS) may configure the service requirement list for the UE according to the capabilities of the UE and the services that the UE subscribes to. Services that the UE subscribes to include call services, mobile broadband services, machine type communication services, vehicle-to-vehicle communication services, ultra-low latency services, ultra-high reliability services, and Internet Protocol (IP) continuity maintenance services. May be. Depending on the actual application scenario and terminal type, the UE may support one or more types of services. For example, a vehicle-type UE may perform autonomous driving by using an inter-vehicle communication service, and a high-definition video can be viewed by using a mobile broadband service, so the service requirement list of the UE is May include inter-vehicle communication services and mobile broadband services. All these services are listed in the service requirements list.

Table 1 is an example of the service requirement list of the UE. It may be seen from Table 1 that the UE may support voice services, mobile broadband services, ultra-reliable services, and other services.

The network device may send the generated service requirement list to the UE, which may store the service requirement list in the manner of Subscriber Identity Module (SIM) card storage, or the service requirement list. May be stored directly.

In this embodiment of the invention, optionally, a radio link may be established between the UE and the RAN node, for example, when sending an RRC message to the RAN node, the UE may send an RRC message to the UE. Transfer the service requirement list to the RAN node. The RRC message sent by the UE to the RAN node is usually a non-access stratum (NAS) message defined in the standard, so the service requirement list of the UE may be sent with the NAS message. ..

In this embodiment of the invention, the network service capability list of the service network is defined when the service network is created and indicates the services supported by the service network. Depending on the actual application scenario, the service network may support one or more types of service. For example, a service network used in an industrial control scenario may simultaneously support machine type communication services, ultra low latency services, and ultra high reliability services. All these services are listed in the service capability list.

Table 2 is an example of the service capability list of the service network. It may be seen from Table 2 that the service network may support voice services, mobile broadband services, ultra-reliable services, and other services.

After the new service network is created, the service capability list of the service network may be configured at the RAN node during the actual deployment of the service network.

If the service capability list of the service networks in the network changes, the management device may further instruct the RAN node to change the service capability list corresponding to the service network.

According to the indication message sent by the management device, the RAN node modifies the service capability list corresponding to the service network and updates the service capability list, after which the UE originally served by the service network re-accesses the network. In this case, the RAN node, the UE, or another network management device may select the service network serving the UE according to the latest set of service capability lists, so that the redirection process is avoided and the signaling is saved. It has become.

The service network deployed in the network may be bad due to geographical restrictions and is out of service to the UE. If the service network is bad, the management device may instruct the RAN nodes within the service network's service range to delete the service network's service capability list.

The RAN node deletes the service capability list corresponding to the service network which is out of service from the service capability list set and updates the service capability list set according to the instruction message sent by the management device. If the UE originally served by the serving network accesses the network again, the RAN node, the UE, or another network management device selects the serving network serving the UE according to the latest set of service capabilities list. In some cases, the redirection process is avoided and signaling is saved.

In the case of a local network, the UE usually has a dedicated service network that can support all services of the UE, but there are some services that can support only some services of the UE.

Optionally, after the RAN node has a service capability list set, the RAN node sends the UE's service requirement list sent by the UE by using an RRC message to the services in the service capability list set on the RAN node. It may be compared with the ability list. In particular, the services in the service requirement list are compared with the services in the service capability list to find a service capability list that can include all or some of the services in the service requirement list. The service network corresponding to the identifier in the service capability list is the service network that provides the service to the UE and is the service network selected by the RAN node for the UE.

In general, the service network that can provide the maximum amount of service requested to the UE and that is within the plurality of service networks may be determined as the service network serving the UE.

For example, the service requirement list of the UE received at the RAN node is shown in Table 1, the service capability list on the RAN node is the service capability list shown in Table 2, that is, the service capability list set is shown in Table 3. By comparing the service requirement list shown in Table 1 with the service requirement list shown in Table 3, the service ability list corresponding to the identifier 1 shows all services in the service requirement list of the UE. It may be appreciated that the serving network, which comprises, ie corresponding to identifier 1, may support the maximum amount of service requested by the UE. Therefore, the RAN node may select the service network corresponding to the identifier 1 as the service network that provides the service to the UE.

After the RAN node determines the identifier of the service network serving the UE, normal service procedures may be performed between the UE and the selected service network.

Optionally, the RAN node may send the UE's list of service requirements to the service network serving the UE. After receiving the service requirement list of the UE, the service network may compare the service requirement list of the UE with the service capability list of the network serving the UE. If the service network cannot support all the services of the UE, ie only some of the services requested by the UE, the service network sends a notification message to the UE to inform the UE of the service network. Informs the UE about the services that can be currently offered. For example, the UE is notified by using a NAS accept message, and the UE refers to the NAS accept message to determine the services that may be required in subsequent service requirements.

In this embodiment of the invention, optionally, if a radio link may be established between the RAN node and the UE, the RAN node includes in the RRC message a plurality of service capability lists, as shown in Table 3. A service capability list of multiple service networks, such as a service capability list set, may be transferred to the UE.

In this case, the UE compares the services in the UE's service requirement list (such as the service requirement list shown in Table 1) with the services in the multiple service capability lists, and all or all of the services in the service requirement list. Select a service capability list that contains a portion (such as the service capability list corresponding to identifier 1 in Table 3). The service network corresponding to the identifier (such as identifier 1 in Table 3) in the service capability list is the service network that provides the service to the UE and is the service network selected for the UE. Then, when sending the RRC message to the RAN node, the UE may send an identifier (such as identifier 1 in Table 3) to the RAN node. Therefore, normal service procedures may be performed between the UE and the selected service network by using the RAN node.

The UE may further send the services requested by the UE (such as the service requirement list shown in Table 1) to the RAN node. After the RAN node receives the UE's service requirement list sent by the UE, optionally, the RAN node provides the UE's service requirement list, services the UE to the service selected by the RAN node. May be sent to the network. After receiving the service requirement list of the UE, the service network compares the service requirement list of the UE with a service capability list of the service network to determine a service that can be provided by the service network for the UE. There is.

In this case, the UE has compared the service requirement list of the UE with the service capability list of the service network, so that the UE already belongs to the UE and already has services that can be supported by the currently selected service network. Clearly aware, the serving network does not need to inform the UE about the services that can be offered by the serving network.

According to the method for selecting a service network in this embodiment of the present invention, the UE actively selects a service network that matches the current service requirement from the service capability list set according to the service requirement list of the UE. Therefore, the process of selecting a service network can be simplified when the network changes dynamically, and signaling can be saved.

Optionally, the method for selecting a service network in an embodiment of the present invention may be performed by a management device of a network slice in future 5G network architecture, i.e., the management device includes a service requirement list of UE and When the service capability list of the network slice is acquired, and the service network that matches the current service requirement of the UE is selected from the service capability lists of the plurality of network slices according to the service requirement list of the UE, and the network dynamically changes The process of selecting a service network can be simplified and signaling can be saved.

Optionally, the RAN node in this embodiment may be a visited RAN node accessed by the UE in a roaming scenario. In this case, the RAN node in the roaming area selects the service network of the UE according to the service requirement list of the UE and the service capability list of the service network of the roaming area to guarantee the roaming access of the UE.

According to the method for selecting a service network in this embodiment of the invention, in a dynamic situation, for example, when the service network is dynamically created, dynamically updated, or defective. , The RAN node may add or remove service capability lists of the configured service network, allowing the UE to perform normal access when the service network changes dynamically. Thus, the UE is not only more flexible and more effective in accessing the service network, but the redirection process is avoided and a large amount of signaling is saved.

In a practical scenario to which this embodiment of the present invention is applied, the UE's dedicated service network is usually deployed on the local network, so that the service network satisfying all the service requirements of the UE is There may be networks that may be selected but may not meet all the service requirements of the UE. In another example, in a roaming scenario, the UE's dedicated network may not be deployed in the roaming network, and the serving network within the roaming network may only provide some services required by the UE. In this case, the priority of the services requested by the UE needs to be considered, that is, the priority of each service requested by the UE is defined when the service requirement list of the UE is defined. The service network that can provide the best matching service is selected for the UE according to the priority of each service. The service network capable of providing the best matching service may be the service network capable of providing the maximum amount of matching services, or may provide the maximum amount of high priority services. It may be a service network. The service network that can provide the best matching service is not limited in the present invention.

The service requirement list in which the priority of each service requested by the UE is defined is shown in Table 4. It can be seen from Table 4 that in the services requested by the UE, voice services have high priority, mobile broadband services have standard priority, and ultra-reliable services have low priority. Good.

For example, when comparing the service requirement list of the UE with the service capability list of the service network, the RAN node needs to preferentially select a service network capable of providing high priority service for the UE. For example, if a service capability list that matches the service requirement list is to be selected from the service capability list set, a service capability list containing high priority voice services may preferably be selected.

Optionally, if multiple service capability lists simultaneously contain high priority services in the service requirement list, the service capability list containing the second highest priority service in the service requirement list may contain multiple service capabilities. The list may be determined and the rest may be inferred by analogy until the best matching service capability list is found. In this case, the service network corresponding to the service capability list can provide the best matching service to the UE.

For example, if the service requirement list of the UE is shown in Table 4, the service network 1 can provide the voice service and the mobile broadband service, and the service network 2 provides the voice service and the ultra high reliability service. And the service network 3 is capable of providing mobile broadband services, the service network 1 and the service network 2 are high priority services when the high priority service requested by the UE is a voice service. It may be determined that the service network 1 is capable of satisfying, and the second high priority service requested by the UE is a mobile broadband service, and the service network 1 can provide the mobile broadband service, the service network 1 It may be determined that the service network is able to provide the best matching service to the UE. Indeed, if there is a service network 4 capable of simultaneously supporting voice services, mobile broadband services, and ultra-high reliability services, high priority services other than voice services and mobile broadband services required by the UE are When it is an ultra-reliable service, the service network 4 may be determined to be the service network that provides the best matching service to the UE.

Optionally, the priority of each service may change in different application scenarios. In this case, the service network may be selected according to the priority of the service in the specific application scenario. For example, in the case of a vehicle type UE, the current UE simultaneously supports the inter-vehicle communication service and the mobile broadband service, but the current network only supports the service network and the mobile broadband service that support only the inter-vehicle communication service. Service network to In this case, because the inter-vehicle communication service has a higher priority, the UE may preferentially select a service network that supports the inter-vehicle communication service during driving to ensure automatic driving, and the vehicle is in service. When stopped in the area, the UE may preferably select a service network that supports the mobile broadband network to watch the video.

In the prior art, each DECOR serves only a particular type of user. If the UE is moved to a new DECOR, the UE may not be able to obtain the service that meets the requirements. However, according to the method for selecting a service network in this embodiment of the present invention, the priority of the service requested by the UE is defined, and when selecting the service network for the UE, the RAN node or Allow a network device, such as a UE, to select a service network that can provide high priority services to the UE. The method for selecting a service network in this embodiment of the invention may also support if the service network with the best matching capabilities is always selected for the UE in the roaming scenario.

FIG. 3 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The method of FIG. 3 includes the following steps.

S301. The RAN node sends a first RRC message to the UE, the first RRC message carrying a service capability list set comprising a service capability list of at least one service network, each service capability list being a service capability list. A first RRC message, which includes at least one service supported by the service network, the first RRC message serving the UE according to the service requirement list and the service capability list set of the UE. Used by the UE to determine the first identifier of the service network of the UE, the service capability list corresponding to the first identifier includes all or some of the services in the service requirement list, and the service requirement list is the UE Includes at least one service required by.

S302. The RAN node receives a second RRC message sent by the UE, the second RRC message carrying a first identifier, the second RRC message serving the first service network to the UE Used to tell what to do.

According to the method for selecting a service network in the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. May be done, so that the process of selecting a service network can be simplified if the service network changes dynamically, and signaling can be saved.

Optionally, the second RRC message sent by the UE may further carry the service requirement list of the UE. On the other hand, the method sends a service requirement list to the first service network by the RAN node, and the first service network sends a notification message to the UE according to the service requirement list and the service capability list of the service network. The step of transmitting, the notification message being used to notify the UE of a service in the service requirement list and included in the service capability list of the first service network. May be included.

FIG. 4 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The method of FIG. 4 includes the following steps.

S401. The UE determines a service requirement list, which includes at least one service required by the UE.

S402. The UE sends an RRC message to the RAN node, the RRC message carries the service requirement list of the UE, the RRC message according to the service requirement list and from a service capability list set including a service capability list of at least one service network, Used by the RAN node to determine the first identifier of the first service network serving the UE, the service capability list corresponding to the first identifier is the whole or part of the services in the service requirement list. And each service capability list includes an identifier of a service network corresponding to the service capability list and includes at least one service supported by the service network.

According to the method for selecting a service network in the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. May be done, so that the process of selecting a service network can be simplified if the service network changes dynamically, and signaling can be saved.

Optionally, the method comprises: by the UE, receiving a notification message sent by the UE to the UE according to the service requirement list and the service capability list of the service network, the notification message being in the service requirement list. May further be used to inform the UE about the services included in the service capability list of the service network.

FIG. 5 is a schematic flow chart illustrating a method for managing a service network according to an embodiment of the present invention. The method of FIG. 5 includes the following steps.

S501. The management device receives the service capability list of the service network transmitted by the service network, the service capability list including an identifier of the service network and at least one service supported by the service network.

S502. The management device sends the service capability list to the RAN node.

According to the method for managing a service network in this embodiment of the present invention, if the service network changes dynamically, the status of the service network may be updated to the RAN node in time, and the RAN node may , So that the service capability list of a network slice can be added, updated, or deleted, and finally the process of selecting a service network in case the service network changes dynamically can be simplified. , And so that signaling can be saved.

Optionally, the method is a step of generating an indication message by the management device, the indication message being used to instruct the RAN node to add, change or delete a service capability list of the service network. , And sending, by the management device, an indication message to the RAN node.

According to the method for selecting a service network and the method for managing a service network, a detailed procedure of selecting a service network in an embodiment of the present invention will be described later with reference to FIGS. 6 to 10. Explained.

As shown in FIG. 6, FIG. 6 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 6 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 6 includes the following steps.

S601. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S602. The RAN node determines a service capability list that corresponds to at least one network slice separately. For example, if there are two network slices in the network, the service capability list of one network slice includes voice service and mobile broadband service, and the service capability list of the other network slice is voice service, inter-vehicle communication service. , And ultra-reliable service. The service capability list of these network slices may be configured locally at the RAN node or may be sent to the RAN node during deployment of the network slice. The service capability lists on the RAN node form a service capability list set. The RAN node may further delete the service capability list of the network slice that is out of service due to the failure from the service capability list set. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario.

S603. When the RRC connection is established between the UE and the RAN node, the UE sends the service requirement list of the UE to the RAN node when sending the RRC message to the RAN node.

S604. After receiving the service requirement list sent by the UE, the RAN node compares the services in the UE's service requirement list with the services in the plurality of service capability lists on the RAN node and compares the services in the service capability list. select the service requirements list containing all or part of the network slices acquired identifiers of network slice corresponding to the identifier is a network slice that provides services to the UE.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and broadband services, and the other network slice can provide voice services. It may be appreciated that other network slices may provide more services to the UE than the one network slice above , provided that it can provide inter-vehicle communication services and ultra-reliable services, and thus the second May be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice may provide high priority voice service and medium priority mobile broadband service, and the second network slice may provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S605. The RAN node sends the service requirement list of the UE to the selected network slice.

S606. The network slice sends a notification message, such as a NAS accept message, to the UE to inform the UE about the services that can be provided to the UE by the network slice. The services that can be provided to the UE by the network slice are the services that are in the service requirement list and that are included in the service capability list of the network slice.

In addition, normal service procedures may be performed between the UE and the selected network slice.

According to the method for selecting the service network in this embodiment of the present invention, the RAN node selects the service network of the UE and prevents the HSS from initiating a large amount of subscription data update procedure. As much as possible and by allowing large amounts of TAU and redirection processes to be avoided, the risk of emergence of signaling storms is reduced. It is further guaranteed that the service network or optimal service network that matches the service requirements of the UE can be matched regardless of whether the UE is in the local network or in the roaming scenario accessing the visited network. You can

As shown in FIG. 7, FIG. 7 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 7 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 7 includes the following steps.

S701. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S702. The RAN node determines a service capability list that corresponds to at least one network slice separately. For example, if there are two network slices in the network, the service capability list of one network slice includes voice service and mobile broadband service, and the service capability list of the other network slice is voice service, inter-vehicle communication service. , And ultra-reliable service. The service capability list of these network slices may be configured locally at the RAN node or may be sent to the RAN node during deployment of the network slice. The service capability lists on the RAN node form a service capability list set. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario. The RAN node may further delete the service capability list of the network slice that is out of service due to the failure from the service capability list set.

S703. When the RRC connection is established between the UE and the RAN node, the RAN node transfers the service capability list set including the service capability lists of the plurality of network slices to the UE in the RRC message.

S704. After receiving the service capability list set sent by the RAN node , the UE compares the services in the service capability list of the UE with the services in the plurality of service capability lists obtained from the RAN node, and Select a service capability list that includes all or part of the service, obtain an identifier of the network slice in the service capability list, and the network slice corresponding to the identifier provides the service and is selected by the UE by the UE. Network slice.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and mobile broadband services, and the other network slice can provide voice services. It may be understood that the second network slice may provide more services to the UE than the first network slice, if it can provide inter-vehicle communication service, and ultra-reliable service, and thus Two network slices may be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice may provide high priority voice service and medium priority mobile broadband service, and the second network slice may provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S705. The UE initiates an RRC message such as a connect message to the RAN node or a TAU request message. The RRC message sent by the UE to the RAN node carries the NAS message defined in the standard and further comprises the identifier of the network slice selected by the UE and the service requirement list. In this way, normal service procedures may be performed between the UE and the selected network slice.

S706. The RAN node sends the service requirement list of the UE to the selected network slice so that the network slice understands the service required by the UE and then allocates resources appropriately to serve the UE. To do.

In this case, the UE has compared the service requirement list of the UE with the service capability list of the selected network slice so that the UE is of the UE and can be supported by the currently selected service network. Having already explicitly identified the service, the network slice does not need to inform the UE about the services that can be provided to the UE by the network slice.

According to the method for selecting the service network in this embodiment of the present invention, the UE may select the service network of the UE and prevent the HSS from initiating a large amount of subscription data update procedure. As well as allowing large amounts of TAU and redirection processes to be avoided, reducing the risk of emergence of signaling storms. It is further guaranteed that the service network or optimal service network that matches the service requirements of the UE can be matched regardless of whether the UE is in the local network or in the roaming scenario accessing the visited network. You can

As shown in FIG. 8, FIG. 8 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 8 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 8 includes the following steps.

S801. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S802. The management device determines the service capability list of the newly added network slice or the updated service capability list of the existing service slice. For example, the management device may obtain a service capability list for a network slice that includes voice services and mobile broadband services, and a service capability list for a network slice that includes voice services, inter-vehicle communication services, and ultra-reliable services. ..

S803. The management device sends the service requirement list of the network slice to the RAN node. The RAN node receives the network slice service requirement list sent by the management device and updates the service capability list set. The service capability list forms a service capability list set on the RAN node. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario.

S804. When the RRC connection is established between the UE and the RAN node, the UE sends the service requirement list of the UE to the RAN node when sending the RRC message to the RAN node.

S805. After receiving the service requirement list sent by the UE, the RAN node compares the services in the service requirement list of the UE with the services in the updated service capability list on the RAN node, A service capability list including all or some of the services is selected, the identifier of the network slice is obtained, and the network slice corresponding to the identifier is the network slice that serves the UE.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and broadband services, and the other network slice can provide voice services. It may be appreciated that the second network slice may provide more services to the UE than the first network slice if it is able to provide inter-vehicle communication services and ultra-reliable services, and thus the second May be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice may provide high priority voice service and medium priority mobile broadband service, and the second network slice may provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S806. The RAN node sends the service requirement list of the UE to the network slice.

S807. The network slice sends a notification message, such as a NAS accept message, to the UE to inform the UE about the services that can be provided to the UE by the network slice. The services that can be provided to the UE by the network slice are the services that are in the service requirement list and that are included in the service capability list of the network slice.

In addition, normal service procedures may be performed between the UE and the selected network slice.

Optionally, in S802, the management device may determine out-of-service network slices. On the other hand, in S803, the management device sends an instruction message to the RAN node to instruct the RAN node to delete the service capability list of the network slice that is out of service. The RAN node receives the instruction message sent by the management device, deletes the service capability list of the network slice that is out of service, and updates the service capability list set according to the instruction message. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario. In this case, in S805, after receiving the service requirement list sent by the UE, the RAN node deletes the service in the service requirement list of the UE from the service capability list of the network slice on the RAN node which is out of service. Compared with the services in the service capability list in the service capability list set being set.

As shown in FIG. 9, FIG. 9 is a schematic flow chart illustrating a method for selecting a service network according to an embodiment of the present invention. The network slice of FIG. 9 is a specific example of a unique service network in a 5G network, or the network slice may be replaced with a dedicated core network within the EPC architecture. The method for selecting a service network shown in FIG. 9 includes the following steps.

S901. According to the capabilities of the UE and the services to which the UE subscribes, the service requirement list allocated to the UE is configured at the UE. The service requirement list may be stored on the SIM card or the UE device. The service requirement list may include voice services, mobile broadband services, inter-vehicle communication services, and ultra-reliable services.

S902. The management device determines the service capability list of the newly added network slice or the updated service capability list of the existing service slice. For example, the management device may obtain a service capability list for a network slice that includes voice services and mobile broadband services, and a service capability list for a network slice that includes voice services, inter-vehicle communication services, and ultra-reliable services. ..

S903. The management device sends the service requirement list of the network slice to the RAN node. The RAN node receives the network slice service requirement list sent by the management device and updates the service capability list set. As shown in Table 3, the service capability list forms a service capability list set on the RAN node. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario.

S904. When the RRC connection is established between the UE and the RAN node, the RAN node transfers the updated service capability list set including the service capability lists of the plurality of network slices to the UE in an RRC message.

S905. After receiving the service capability list set sent by the RAN node , the UE compares the services in the service capability list of the UE with the services in the plurality of service capability lists obtained from the RAN node, and Select a service capability list that includes all or part of the service, obtain an identifier of the network slice in the service capability list, and the network slice corresponding to the identifier provides the service and is selected by the UE by the UE. Network slice.

For example, the services requested by the UE are voice services, mobile broadband services, and ultra-reliable services, one network slice can provide voice services and broadband services, and the other network slice can provide voice services. It may be appreciated that the second network slice may provide more services to the UE than the first network slice if it is able to provide inter-vehicle communication services and ultra-reliable services, and thus the second May be determined as the network slice serving the UE.

If the priority of the service in the service capability list of the UE is defined, the selected network slice is the network slice that can provide the UE with high priority service. For example, in the service capability list of the UE, the voice service is a high priority service, the mobile broadband service is a medium priority service, the inter-vehicle communication service is a low priority service, and the ultra-high reliability service. Is the lowest priority service. The first network slice may provide high priority voice service and medium priority mobile broadband service, and the second network slice may provide high priority voice service, low priority inter-vehicle communication service, and Since the lowest priority ultra-reliable service can be provided, the first network slice can provide the UE with the high priority voice service provided by the second network slice, and It may be appreciated that the medium priority mobile broadband service provided by the first network slice has a higher priority than the other services provided by the second network slice. Therefore, the first network slice may be determined as the service network that provides the best matching service to the UE.

S906. The UE initiates an RRC message such as a connect message to the RAN node or a TAU request message. The RRC message sent by the UE to the RAN node carries the NAS message defined in the standard and further comprises the identifier of the network slice selected by the UE and the service requirement list. In this case, normal service procedures may be performed between the UE and the selected network slice.

S907. The RAN node sends the service requirement list of the UE to the network slice so that the network slice understands the services required by the UE and then allocates resources appropriately to serve the UE.

In this case, the UE has compared the service requirement list of the UE with the service capability list of the selected network slice so that the UE is of the UE and can be supported by the currently selected service network. Having already explicitly identified the service, the network slice does not need to inform the UE about the services that can be provided to the UE by the network slice.

Optionally, in S902, the management device may determine out-of-service network slices. On the other hand, in step S903, the management device sends an instruction message to the RAN node to instruct the RAN node to delete the service capability list of the network slice that is out of service. The RAN node receives the instruction message sent by the management device, deletes the service capability list of the network slice that is out of service, and updates the service capability list set according to the instruction message. The RAN node may be a RAN node within the local network or it may be a visited RAN node in a roaming scenario. In this case, in S905, after receiving the service requirement list transmitted by the UE, the RAN node selects the services in the service requirement list of the UE as the service capability list of the network slice that is on the RAN node and is out of service. Compare with the services in the service capability list in the deleted service capability list set.

The method and process for selecting a service network is described in detail above by FIGS. The RAN node, the UE and the management device involved in the selection of the service network are described in detail below with reference to FIGS. 10 to 13.

FIG. 10 is a schematic block diagram showing a network device for selecting a service network according to an embodiment of the present invention. The network device for selecting a service network node shown in FIG. 10 includes a processor 1001, a receiver 1002, and a transmitter 1003.

The receiver 1002 is configured to receive the message and the transmitter 1003 is configured to send the message. The processor 1001 is configured to determine a service requirement list of the user equipment UE, the service requirement list including at least one service requested by the UE. The processor 1001 is further configured to determine a service capability list set including a service capability list of at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list, depending on the service network. Includes at least one service supported. The processor 1001 is further configured to determine a first identifier of a first service network serving the UE according to the service requirement list and the service capability list set, the service capability list corresponding to the first service network. Includes all or part of the services in the service requirements list.

According to the network device in this embodiment of the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. Also, the process of selecting a service network can be simplified if the network changes dynamically, and signaling can be saved.

In this embodiment of the invention, optionally, the processor 1001 includes the maximum amount of services in the service requirement list, in particular according to the service requirement list and the service capability list set, and the service capability list in the service capability list set. Is specifically configured to determine an identifier corresponding to the first identifier of the first service network serving the UE.

In the embodiment of the present invention, the network device shown in FIG. 10 may be a UE or a RAN node. If the network device is a UE, the receiver 1002 is specifically configured to receive the RRC message sent by the RAN node, which carries the service capability list set. Processor 1001 is specifically configured to determine the service capability list set according to the RRC message received by receiver 1002. The transmitter 1003 is further specifically configured to send another RRC message to the RAN node, the RRC message carrying an identifier of the service network serving the UE.

Optionally, the RRC message sent by the UE to the RAN node further carries the service requirement list of the UE, wherein the RAN node provides a message carrying the service requirement list to the UE the first service Try to send to the network.

If the network device shown in FIG. 10 is a RAN node, the receiver 1002 is configured to receive the RRC message sent by the UE, which carries the service requirement list of the UE. Processor 1001, in particular configured to determine the service requirements list according R RC message received by receiver 1002. The receiver 1002 is further configured to receive the service capability list of the service network sent by the management device, or to receive the service capability list of the at least one service network sent by the at least one service network. It The processor 1001 is further specifically configured to determine a service capability list set including a service capability list of at least one service network.

Optionally, transmitter 1003 is specifically configured to send a message carrying the service requirement list to the first service network such that the first service network includes the service requirement list and the first service network. Send a notification message to the UE according to the service capability list. The notification message is used to notify the UE about services in the service requirement list and included in the service capability list of the first service network.

Optionally, receiver 1002 is further configured to receive an indication message sent by the management device, the indication message to add, modify, or delete the service capability list of the at least one serving network. Used to instruct. The processor 1001 is further configured to add, change or delete the service capability list of at least one service network in the service capability set according to the instruction message.

Optionally, the service requirement list of the UE may further include a priority for each of the at least one service requested by the UE. In this case, the processor 1001 searches the service capability list set according to the service in the service requirement list in descending order of the priority corresponding to the service, and determines the first identifier of the first service network serving the UE. Specifically configured to.

In this embodiment of the invention, processor 1001 is a Central Processing Unit (abbreviated as "CPU"), or processor 1001 is another general purpose processor, digital signal processor (DSP), special purpose integrated circuit ( It should be understood that it may be an ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. A general purpose processor may be a microprocessor, or the processor may be any standard processor or the like.

FIG. 11 is a schematic block diagram illustrating a RAN node according to an exemplary embodiment of the present invention. The RAN node shown in FIG. 11 includes a transmitter 1101 and a receiver 1102.

The receiver 1102 is configured to receive the service capability list of the at least one service network sent by the management device or receive the service capability list of the at least one service network sent by the at least one service network. To be done. Each service capability list includes an identifier of the service network corresponding to the service capability list and includes at least one service supported by the service network. The transmitter 1101 is configured to send the first RRC message to the UE. The first RRC message carries a service capability list set including a service capability list of at least one service network, each service capability list including an identifier of the service network corresponding to the service capability list and supported by the service network. A first RRC message comprising at least one service that is used by the UE for determining the first identifier from the service capability list set according to the service requirement list of the UE and the service capability list corresponding to the first identifier. Includes all or part of the services in the service requirement list to cause the first service network corresponding to the first identifier to provide the service to the UE, the service requirement list comprising at least 1 Including one service. The receiver 1102 is configured to receive the second RRC message sent by the UE. The second RRC message carries the first identifier, and the second RRC message is used to indicate that the first service network serves the UE.

According to the RAN node in this embodiment of the present invention, when the service network changes dynamically, the service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. Also, the process of selecting a service network can be simplified if the network changes dynamically, and signaling can be saved.

Optionally, the second RRC message sent by the UE may further carry the service requirement list of the UE. The transmitter 1101 is further configured to send the service requirement list to the first service network, and the first service network sends the notification message to the UE according to the service requirement list and the service capability list of the service network. To do. The notification message is used to notify the UE about services in the service requirement list and included in the service capability list of the first service network.

Optionally, receiver 1102 is further configured to receive the service capability list of the service network sent by the management device.

Optionally, receiver 1102 is further configured to receive an indication message sent by the management device, the indication message to add, modify, or delete the service capability list of at least one serving network. Used to instruct. In contrast, the RAN node may further include a processor configured to add, change, or delete the service capability list of at least one service network in the service capability set according to the indication message.

FIG. 12 is a schematic block diagram illustrating a UE according to an embodiment of the present invention. The UE shown in FIG. 12 includes a processor 1201 and a transmitter 1202.

The processor 1201 is configured to determine a service requirement list for the UE, the service requirement list including at least one service requested by the UE. The transmitter 1202 is configured to send the RRC message to the RAN node. The RRC message carries a service requirement list, and the RRC message is used by the RAN node to determine a first identifier according to the service requirement list from a service capability list set including a service capability list of at least one service network, The service capability list corresponding to the first identifier includes all or some of the services in the service requirement list so that the first service network corresponding to the first identifier serves the UE, The capability list includes an identifier of the service network corresponding to the service capability list and includes at least one service supported by the service network.

According to the UE in this embodiment of the present invention, even if the service network dynamically changes, a service network satisfying the service requirement is selected for the UE according to the service requirement of the terminal device and the service capability of the service network. Well, so that the process of selecting a service network in case the network changes dynamically can be simplified and signaling can be saved.

Optionally, the UE may further comprise a receiver configured to receive the notification message sent to the UE by the first service network according to the service requirement list and the service capability list of the first service network. .. The notification message is used to notify the UE about services in the service requirement list and included in the service capability list of the first service network.

Optionally, the service requirement list of the UE may further include a priority for each of the at least one service requested by the UE. The processor 1201 may search the service capability list set according to the service in the service requirement list in descending order of priority corresponding to the service to determine a first identifier of a first service network to serve the UE. Especially composed.

In this embodiment of the invention, the processor 1201 is a central processing unit (abbreviated as “CPU”), or the processor 1201 is another general purpose processor, digital signal processor (DSP), special purpose integrated circuit ( It should be appreciated that it may be an ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. A general purpose processor may be a microprocessor, or the processor may be any standard processor or the like.

FIG. 13 is a schematic block diagram showing a management device according to an embodiment of the present invention. The management device shown in FIG. 13 includes a receiver 1301 and a transmitter 1302. The service capability list of the service network is deployed to the management device.

The receiver 1301 is configured to receive a service capability list of the service network transmitted by the service network, the service capability list including an identifier of the service network and at least one service supported by the service network. The transmitter 1302 is configured to send the service capability list of the service network to the RAN node.

According to the management device in this embodiment of the present invention, when the service network changes dynamically, the status of the service network may be updated to the RAN node in time, and the RAN node may change the service capability of the network slice. Allowing the list to be added, updated, or deleted so that finally the process of selecting a service network in case the service network changes dynamically can be simplified and signaling is saved. To be able to

Optionally, the management device may further include a processor configured to generate the instruction message, the instruction message instructing the RAN node to add, modify, or delete the service capability list of the service network. Used for. The transmitter 1392 is further configured to send an indication message to the RAN node.

In this embodiment of the invention, the processor is a central processing unit (abbreviated as "CPU"), or the processor is another general purpose processor, digital signal processor (DSP), special purpose integrated circuit (ASIC). , Field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor, or the processor may be any standard processor or the like.

Units and algorithm steps may be implemented by electronic hardware or a combination of computer software and electronic hardware, in combination with the examples described in the embodiments disclosed in this specification. You may understand that. Whether the function is performed by hardware or software depends on the particular application of the technical solution and the design constraints. Persons skilled in the art may use different methods to implement the functionality described for each particular application, but their implementation should not be considered as departing from the scope of the present invention.

For the purposes of brief and concise description, with respect to the detailed operation process of the above-described system, apparatus, and unit, reference may be made to the corresponding process in the above-described method embodiments, and details are not described herein again. However, it may be clearly understood by a person skilled in the art.

It should be appreciated that in some embodiments provided herein, the disclosed systems, devices, and methods may be implemented in other ways. For example, the described apparatus embodiments are merely exemplary. For example, the unit part is merely a logical function part, and may have other parts in an actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not performed. In addition, the displayed or described mutual couplings or direct couplings or communication connections may be implemented by using some interfaces. Indirect couplings or communication connections between devices or units may be implemented electronically, mechanically, or otherwise.

A unit described as a separate part may or may not be physically separated, and a part displayed as a unit may be a physical unit or a physical unit. It may not be present and may be located in one location or distributed over multiple network units. Some or all of the units may be selected depending on the actual requirements for achieving the purpose of the solution of the embodiment.

If implemented in the form of software functional units and sold or used as a stand-alone product, the functions may be stored on a computer-readable storage medium. Based on such an understanding, basically the technical solution of the present invention, or the part contributing to the prior art or part of the technical solution may be implemented in the form of a software product. The software product is stored on a storage medium and directs a computing device (which may be a personal computer, server, network device, etc.) to perform all or some of the method steps described in embodiments of the invention. Including a plurality of instructions for performing. The aforementioned storage medium stores program code, such as a USB flash drive, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. Including any medium that can be.

The foregoing descriptions are merely specific embodiments of the present invention, but are not intended to limit the protection scope of the present invention. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present invention shall fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (30)

A method for selecting a service network, comprising:
Determining a service requirement list for a user equipment UE, the service requirement list comprising at least one service requested by the UE,
Determining a service capability list set comprising at least one service capability list of each service network, each service capability list comprising an identifier of a service network corresponding to said service capability list, supported by said service network. Providing at least one service,
Determining a first identifier of a first service network providing a service to the UE according to the service requirement list and the service capability list set, wherein the service capability list corresponding to the first service network is Comprising all or part of the services in the service requirement list. Determining a first identifier of a first service network serving the UE according to the service requirement list and the service capability list set, the service capability list corresponding to the first service network Comprises all or part of the services in the service requirements list, the step comprising:
According to the service requirement list and the service capability list set, an identifier having the maximum amount of services in the service requirement list and corresponding to the service capability list in the service capability list set is determined as the first identifier. The method of claim 1, comprising steps. The method is performed by the UE,
The step of determining a service capability list set comprising service capability lists of at least one service network is a step of receiving, by the UE, a first radio resource control RRC message sent by a radio access network RAN node. And the first RRC message carries the service capability list set, and the step of determining the service capability list set according to the first RRC message,
The method is a step of transmitting a second RRC message by the UE to the RAN node, the second RRC message carrying the first identifier, and the second RRC message comprising: 3. The method according to claim 1 or 2, further comprising the steps of: the first service network being used to instruct the UE to serve. The method of claim 3, wherein the second RRC message further carries the service requirement list such that the RAN node sends the service requirement list to the first service network. The method is performed by a RAN node,
The step of determining a service requirement list of the UE is a step of receiving, by the RAN node, a third RRC message transmitted by the UE, the third RRC message including the service capability list. Transporting, and determining the service capability list according to the third RRC message,
Determining the service capability list set comprising the service capability list of at least one service network, receiving by the RAN node the service capability list of the at least one service network sent by the management device. , Or receiving the service capability list of the at least one service network transmitted by the at least one service network, and determining the service capability list set comprising the service capability list of the at least one service network. The method according to claim 1 or 2, comprising the steps of: The method sends a message carrying the service requirement list to the first service network by the RAN node, the first service network causing the service requirement list and the first service network to be transmitted. Sending a notification message to the UE according to a service capability list, the notification message being a service included in the service capability list of the first service network in the service requirement list. The method according to claim 4 or 5, further comprising the steps used to inform the UE about the. The method is
Receiving, by the RAN node, an indication message sent by the management device, wherein the indication message adds, modifies, or deletes the service capability list of the at least one service network. The steps used to direct the node,
7. The method according to any one of claims 4 to 6, further comprising: adding, changing, or deleting, by the RAN node, the service capability list of the at least one service network in the service capability set according to the instruction message. the method of. The service requirement list further comprises priorities corresponding to each of the at least one service requested by the UE,
The step of determining a first identifier of a first service network serving the UE according to the service requirement list and the service capability list set,
8. The method according to claim 1, further comprising: searching the service capability list set according to the services in the service requirement list in descending order of priority corresponding to the service to determine the first identifier. Method. A method for selecting a service network, comprising:
Receiving, by a radio access network RAN node, a service capability list of at least one service network sent by a management device, or receiving a service capability list of at least one service network sent by said at least one service network Wherein each service capability list comprises an identifier of a service network corresponding to said service capability list, and comprises at least one service supported by said service network.
Transmitting a first radio resource control RRC message to a user equipment UE by the RAN node, the first RRC message comprising a service capability list set comprising the service capability list of the at least one service network. And the first RRC message is used by the UE to determine a first identifier of a first service network serving the UE according to the service requirement list and service capability list set. A service capability list of the first service network comprises all or some of the services in the service requirement list, the service requirement list comprising at least one service requested by the UE,
Receiving, by the RAN node, a second RRC message sent by the UE, the second RRC message carrying the first identifier, and the second RRC message being the A first service network is used to direct the UE to provide service. The second RRC message further carries the service requirement list,
The method is
The service requirement list is transmitted by the RAN node to the first service network, and the first service network sends a notification message according to the service requirement list and the service capability list of the first service network. Sending to said UE, said notification message for notifying said UE about services in said service requirement list and included in said service capability list of said first service network The method of claim 9, further comprising the steps of: The method is
Receiving, by the RAN node, an indication message sent by the management device, wherein the indication message adds, modifies, or deletes the service capability list of the at least one service network. The steps used to direct the node,
11. The method of claim 9 or 10, further comprising: adding, changing, or deleting, by the RAN node, the service capability list of the at least one service network in the service capability set according to the instruction message. A method for selecting a service network, comprising:
Determining, by a user equipment UE, a service requirement list of the UE, the service requirement list comprising at least one service requested by the UE,
Transmitting a radio resource control RRC message by the UE to a radio access network RAN node, the RRC message carrying the service requirement list, the RRC message comprising the service requirement list and at least one service network A service capability of the first service network used by the RAN node to determine a first identifier of a first service network serving the UE according to a service capability list set comprising a service capability list of The list comprises all or part of the services in the service requirement list, each service capability list comprising an identifier of a service network corresponding to the service capability list, and at least one service supported by the service network. And a step comprising:. The method comprises the step of receiving, by the UE, a notification message sent to the UE by the first service network according to the service requirement list and the service capability list of the first service network, the method comprising: The notification message further comprises the step of: used to notify the UE of a service in the service requirement list and included in the service capability list of the first service network. the method of. A method for managing a service network, comprising:
Receiving by a management device a service capability list of said service network transmitted by a service network, said service capability list comprising an identifier of said service network and at least one service supported by said service network. , Step,
Sending the service capability list to a RAN node by the management device. The method is
Generating an instruction message by the management device, the instruction message being used to instruct the RAN node to add, change, or delete the service capability list of the service network, When,
15. The method of claim 14, further comprising: sending the indication message to the RAN node by the management device. A network device for selecting a service network, comprising a receiver, a processor, and a transmitter, wherein the receiver is configured to receive a message, and the transmitter is configured to transmit the message. Composed,
The processor is configured to determine a service requirement list of a user equipment UE, the service requirement list comprising at least one service requested by the UE,
The processor is further configured to determine a service capability list set comprising a service capability list of at least one service network, each service capability list comprising an identifier of a service network corresponding to the service capability list, and the service Comprises at least one service supported by the network,
The processor is further configured to determine a first identifier of a first service network serving the UE according to the service requirement list and the service capability list set, and corresponding to the first service network. A network device comprising a service capability list comprising all or part of the services in the service requirement list. The processor comprises the maximum amount of services in the service requirement list according to the service requirement list and the service capability list set, and assigns an identifier corresponding to the service capability list in the service capability list set to the first identifier. The network device of claim 16, specifically configured to determine as an identifier. The network device is the UE,
The receiver is specifically configured to receive a first radio resource control RRC message sent by the radio access network RAN node, the first RRC message carrying the service capability list set;
The processor is specifically configured to determine the service capability list set according to the first RRC message received by the receiver,
18. The network device according to claim 16 or 17, wherein the transmitter is further specifically configured to send a second RRC message to the RAN node, the second RRC message carrying the first identifier. 20. The network of claim 18, wherein the second RRC message further carries the service requirement list such that the RAN node sends a message carrying the service requirement list to the first service network. device. The network device is a RAN node,
The receiver is specifically configured to receive a third RRC message sent by the UE, the third RRC message carrying the service requirement list;
The processor is specifically configured to determine the service requirement list according to the third RRC message received by the receiver,
The receiver receives the service capability list of the at least one service network transmitted by the management device, or the service capability of the at least one service network transmitted by the at least one service network. More specifically configured to receive the list,
18. A network device according to claim 16 or 17, wherein the processor is further specifically configured to determine the service capability list set comprising the service capability list of the at least one service network. The transmitter is specifically configured to send a message carrying the service requirement list to the first service network, the first service network including the service requirement list and the first service network. Sending a notification message to the UE according to the service capability list of the UE, the notification message for the UE for services in the service requirement list and included in the service capability list of the first service network. 21. The network device according to claim 20, which is used to notify the. The receiver is further configured to receive an instruction message sent by the management device, the instruction message to add, modify, or delete the service capability list of the at least one service network. Used to tell the node,
22. The processor of any of claims 19-21, wherein the processor is further configured to add, modify, or delete the service capability list of the at least one service network in the service capability set according to the indication message. Network device. The service requirement list further comprises priorities corresponding to each of the at least one service requested by the UE,
17. The processor is specifically configured to search the service capability list set according to services in the service requirement list in descending order of priority corresponding to the service to determine the first identifier. 23. The network device according to any one of 22. A radio access network RAN node for selecting a service network, comprising a transmitter and a receiver,
The receiver is adapted to receive a service capability list of at least one service network sent by a management device or to receive a service capability list of the at least one service network sent by at least one service network. Each service capability list comprises an identifier of a service network corresponding to the service capability list and comprises at least one service supported by the service network,
The transmitter is configured to send a first radio resource control RRC message to a user equipment UE, the first RRC message comprising a service capability list set comprising the service capability list of the at least one service network. And the first RRC message is used by the UE to determine a first identifier of a first service network serving the UE according to the service requirement list and the service capability list set. Wherein the service capability list of the first service network comprises all or part of the services in the service requirement list, the service requirement list comprising at least one service requested by the UE,
The receiver is configured to receive a second RRC message sent by the UE, the second RRC message carrying the first identifier, and the second RRC message being the second RRC message. A RAN node used by a service network of one to instruct the UE to serve. The second RRC message further carries the service requirement list,
The transmitter is further configured to send the service requirement list to the first service network, the first service network according to the service requirement list and the service capability list of the first service network. A notification message is sent to the UE, the notification message being used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network. 25. The RAN node of claim 24, wherein The receiver is further configured to receive an instruction message sent by the management device, the instruction message to add, modify, or delete the service capability list of the at least one service network. Used to tell the node,
The RAN node further comprises a processor configured to add, modify, or delete the service capability list of the at least one service network in the service capability set according to the indication message. The described RAN node. A user equipment UE for selecting a service network, comprising a processor and a transmitter, comprising:
The processor is configured to determine a service requirement list of the UE, the service requirement list comprising at least one service requested by the UE,
The transmitter is configured to send a radio resource control RRC message to a radio access network RAN node, the RRC message carrying a service requirement list, the RRC message comprising the service requirement list and at least one service network. A service capability of the first service network used by the RAN node to determine a first identifier of a first service network serving the UE according to a service capability list set comprising a service capability list of The list comprises all or part of the services in the service requirement list, each service capability list comprising an identifier of a service network corresponding to the service capability list, and at least one service supported by the service network. A UE. The UE further comprises a receiver configured to receive a notification message sent to the UE by the first service network according to the service requirement list and the service capability list of the first service network, 28. The UE according to claim 27, wherein the notification message is used to notify the UE about a service in the service requirement list and included in the service capability list of the first service network. A management device comprising a receiver and a transmitter,
The receiver is configured to receive a service capability list of the service network transmitted by the service network, the service capability list including an identifier of the service network and at least one service supported by the service network. Prepare,
The management device, wherein the transmitter is configured to send the service capability list to a RAN node. The management device further comprises a processor configured to generate an instruction message, the instruction message for instructing the RAN node to add, change, or delete the service capability list of the service network. Used,
30. The management device of claim 29, wherein the transmitter is further configured to send the indication message to the RAN node.

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