CN109788493B - Network slice generation method, network side equipment and terminal - Google Patents
Network slice generation method, network side equipment and terminal Download PDFInfo
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- CN109788493B CN109788493B CN201711116319.0A CN201711116319A CN109788493B CN 109788493 B CN109788493 B CN 109788493B CN 201711116319 A CN201711116319 A CN 201711116319A CN 109788493 B CN109788493 B CN 109788493B
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Abstract
The invention provides a network slice generation method, network side equipment and a terminal, and belongs to the technical field of communication. The network slice generation method applied to the network side equipment comprises the following steps: a first network side device receives configuration information sent by a core network, wherein the configuration information carries a slicing service quality requirement; and the first network side equipment establishes a network slice according to the configuration information, the operation strategy of the operator and/or the business service strategy and informs the terminal to generate the wireless access layer slice. The network slice generation method applied to the terminal comprises the following steps: the terminal receives a slice establishment or reconfiguration signaling sent by network side equipment; the terminal generates a radio access stratum slice. The technical scheme of the invention can enable the RAN side to sense the slice of the core network and provide resource and function support.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a network slice generation method, a network side device, and a terminal.
Background
In a mobile communication Network, a Network Slice (Network Slice) refers to a complete logical Network consisting of a set of Network functions and associated required resources for providing specific Network capabilities and Network characteristics. The flows of establishing, selecting, changing and the like of the Slice are realized among the UE (terminal), the gNB (5G base station) and the core Network through Network Slice Selection Assistance Information (NSSAI) interaction. In a 5G Network, a RAN (Radio Access Network) needs to sense a slice of a core Network and provide resource and function support, but the current 5G protocol does not specify how the RAN senses the slice of the core Network and provides resource and function support.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a network slice generation method, a network side device and a terminal, which can enable an RAN side to sense a slice of a core network and provide resource and function support.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a method for generating a network slice is provided, and is applied to a network side device, and the method includes:
a first network side device receives configuration information sent by a core network, wherein the configuration information carries a slicing service quality requirement;
and the first network side equipment establishes a network slice according to the configuration information, the operation strategy of the operator and/or the business service strategy and informs the terminal to generate a wireless access layer slice.
Further, the establishing, by the first network side device, a network slice according to the configuration information, the operation policy of the operator, and/or the business service policy includes:
the first network side equipment generates network management parameters and equipment management parameters of a network side according to an operation strategy of an operator and/or the NSSAI configuration information; and/or
The first network side device generates a service policy according to the QoS algorithm and/or the NSSAI configuration information, and generates at least one of the following parameters according to the service policy:
user management parameters, wireless function parameters, air interface wireless resource frequency domain and time domain management parameters, and service quality control parameters, interface selection parameters, air interface wireless resource frequency domain and time domain selection parameters.
Further, the notifying the terminal to generate the radio access stratum slice includes:
the RRC of the first network side device receives an NSSAI response message sent by the RRM, wherein the NSSAI response message carries an OM strategy and/or a strategy of supporting QoS by wireless resources;
and the RRC of the first network side equipment configures the OM strategy to an OM, sends slice establishment or reconfiguration signaling to the L2 layer module and the physical layer module after receiving a success confirmation message returned by the OM, and sends the slice establishment or reconfiguration signaling to the terminal.
Further, after the terminal is switched from the first network-side device to the second network-side device, the method for generating the network slice further includes:
the second network side equipment receives configuration information sent by a core network, wherein the configuration information carries slicing service quality requirements;
and the second network side equipment establishes a new network slice according to the configuration information and sends a slice reconfiguration signaling to the terminal to indicate the terminal to activate the existing network slice.
Further, after the terminal is switched from the first network-side device to the second network-side device, the method for generating the network slice further includes:
the second network side equipment receives configuration information sent by the first network side equipment, wherein the configuration information carries slice service quality requirements;
and the second network side equipment establishes a new network slice according to the configuration information and sends a slice reconfiguration signaling to the terminal to indicate the terminal to activate the existing network slice.
The embodiment of the invention also provides a network slice generation method, which is applied to a terminal and comprises the following steps:
a terminal receives a slice establishing or reconfiguring signaling sent by network side equipment, wherein the slice establishing or reconfiguring signaling is generated by the network side equipment according to configuration information carrying slice service quality requirements, an operation strategy of an operator and a service strategy;
the terminal generates a radio access layer slice.
Further, before the terminal receives a slice setup or reconfiguration signaling sent by the network side device, the method further includes:
the terminal and the core network negotiate the end-to-end slicing requirement through NAS signaling, and end-to-end slicing is established.
Further, after the terminal generates the radio access stratum slice, the method further includes:
and after receiving the control signaling of the network side equipment, the terminal completes the selection and the use of the empty port according to the signaling indication and replies a message of successful establishment of the wireless access layer slice to the network side equipment.
Further, the terminal generating the radio access stratum slice includes:
the NAS layer of the terminal configures NSSAI configuration information to an AS layer;
and the AS layer of the terminal completes corresponding mapping and control according to the NSSAI configuration information and the RAN signaling.
Further, the NSSAI configuration information includes at least one of the following parameters:
radio interface selection parameters, air interface radio resource frequency domain and time domain selection parameters, and service quality control parameters.
The embodiment of the invention also provides a network side device, which comprises a processor and a transceiver,
the transceiver is used for receiving configuration information sent by a core network, and the configuration information carries slicing service quality requirements;
the processor is used for establishing a network slice according to the configuration information, the operation strategy of the operator and/or the business service strategy and informing the terminal to generate a wireless access layer slice.
Further, the processor is specifically configured to generate a network management parameter and a device management parameter of a network side according to an operation policy of an operator and/or the NSSAI configuration information; and/or
Generating a business service policy according to the QoS algorithm and/or the NSSAI configuration information, and generating at least one of the following parameters according to the business service policy:
user management parameters, wireless function parameters, air interface wireless resource frequency domain and time domain management parameters, and service quality control parameters, interface selection parameters, air interface wireless resource frequency domain and time domain selection parameters.
Further, the processor includes:
the RRC module is used for receiving NSSAI response information sent by RRM, wherein the NSSAI response information carries an OM strategy and/or a strategy of wireless resource supporting QoS; and configuring the OM strategy to an OM, sending slice establishment or reconfiguration signaling to an L2 layer module and a physical layer module after receiving a success confirmation message returned by the OM, and sending the slice establishment or reconfiguration signaling to a terminal.
Further, after the terminal is switched from the first network side device to the second network side device,
the transceiver of the second network side device is configured to receive configuration information sent by a core network, where the configuration information carries a slicing qos requirement;
and the processor of the second network side device is configured to establish a new network slice according to the configuration information, and send a slice reconfiguration signaling to the terminal to instruct the terminal to activate an existing network slice.
Further, after the terminal is switched from the first network side device to the second network side device,
the transceiver of the second network side device is configured to receive configuration information sent by the first network side device, where the configuration information carries a slicing qos requirement;
and the processor of the second network side device is configured to establish a new network slice according to the configuration information, and send a slice reconfiguration signaling to the terminal to instruct the terminal to activate an existing network slice.
The embodiment of the invention also provides a terminal, which comprises a processor and a transceiver,
the transceiver is used for receiving a slice establishment or reconfiguration signaling sent by network side equipment, wherein the slice establishment or reconfiguration signaling is generated by the network side equipment according to configuration information carrying slice service quality requirements, an operation strategy of an operator and a service strategy;
the processor is configured to generate a radio access stratum slice.
Further, the processor is further configured to negotiate end-to-end slicing requirements with the core network via NAS signaling and establish end-to-end slicing.
Further, the processor includes:
and the RRC module is used for finishing the selection and the use of the empty port according to the signaling indication after receiving the signaling of the RRC of the network side equipment, and replying a successful message of establishing the wireless access layer slice to the network side equipment.
Further, the processor includes:
the NAS layer module is used for configuring NSSAI configuration information to the AS layer module;
and the AS layer module is used for finishing corresponding mapping and control according to the NSSAI configuration information and the RAN signaling.
Further, the NSSAI configuration information includes at least one of the following parameters:
radio interface selection parameters, air interface radio resource frequency domain and time domain selection parameters, and service quality control parameters.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the network slice generation method as described above.
The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the network slice generation method as described above.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the network slice generation method described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, the first network side device receives configuration information sent by a core network, where the configuration information carries slice quality of service requirements, the first network side device establishes a network slice according to the configuration information, an operation policy of an operator and/or a service policy, and notifies the terminal to generate a radio access layer slice, and the terminal receives a slice establishment or reconfiguration signaling sent by the network side device and generates the radio access layer slice. The technical scheme of the invention can enable the RAN side to support the parameter quantization scheme of the end-to-end network slice and the corresponding protocol stack function mapping, and can meet the support requirement of the core network slice in 5G.
Drawings
Fig. 1 is a schematic flowchart of a network slice generation method applied to a network-side device according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a network slice generation method applied to a terminal according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating an embodiment of a network side supporting end-to-end network slicing;
fig. 4 is a diagram illustrating end-to-end network slicing supported by a terminal side according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating an embodiment of the invention supporting end-to-end network slicing;
fig. 6 and fig. 7 are schematic diagrams of supporting network slicing after terminal handover according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
Embodiments of the present invention provide a network slice generation method, a network side device, and a terminal, which enable a RAN side to sense a slice of a core network and provide resource and function support.
An embodiment of the present invention provides a network slice generation method, which is applied to a network side device, and as shown in fig. 1, the method includes:
step 101: a first network side device receives configuration information sent by a core network, wherein the configuration information carries a slicing service quality requirement;
step 102: and the first network side equipment establishes a network slice according to the configuration information, the operation strategy of the operator and/or the business service strategy and informs the terminal to generate a wireless access layer slice.
Specifically, the configuration information is NSSAI configuration information.
Further, the establishing, by the first network side device, a network slice according to the configuration information, the operation policy of the operator, and/or the business service policy includes:
the first network side equipment generates network management parameters and equipment management parameters of a network side according to an operation strategy of an operator and/or the NSSAI configuration information; and/or
The first network side equipment generates a business service strategy according to a QoS algorithm and/or the NSSAI configuration information, and generates at least one of the following parameters according to the business service strategy:
user management parameters, wireless function parameters, air interface wireless resource frequency domain and time domain management parameters, and service quality control parameters, interface selection parameters, air interface wireless resource frequency domain and time domain selection parameters.
Further, the informing the terminal to generate the radio access stratum slice includes:
the RRC of the first network side device receives an NSSAI response message sent by the RRM, wherein the NSSAI response message carries an OM strategy and/or a strategy of supporting QoS by wireless resources;
and the RRC of the first network side equipment configures the OM strategy to an OM, sends slice establishment or reconfiguration signaling to the L2 layer module and the physical layer module after receiving a success confirmation message returned by the OM, and sends the slice establishment or reconfiguration signaling to the terminal.
Further, after the terminal is switched from the first network-side device to the second network-side device, the method for generating the network slice further includes:
the second network side equipment receives configuration information sent by a core network, wherein the configuration information carries slicing service quality requirements;
and the second network side equipment establishes a new network slice according to the configuration information and sends a slice reconfiguration signaling to the terminal to indicate the terminal to activate the existing network slice.
Further, after the terminal is switched from the first network-side device to the second network-side device, the method for generating the network slice further includes:
the second network side equipment receives configuration information sent by the first network side equipment, wherein the configuration information carries slice service quality requirements;
and the second network side equipment establishes a new network slice according to the configuration information and sends a slice reconfiguration signaling to the terminal to indicate the terminal to activate the existing network slice.
In this embodiment, a first network side device receives NSSAI configuration information sent by a core network, where the NSSAI configuration information carries a slice qos requirement, the first network side device establishes a network slice according to the NSSAI configuration information, an operation policy of an operator, and/or a service policy, and notifies a terminal to generate a radio access stratum slice, and the terminal receives a slice establishment or reconfiguration signaling sent by the network side device and generates the radio access stratum slice. The technical scheme of the invention can enable the RAN side to support the parameter quantization scheme of the end-to-end network slice and the corresponding protocol stack function mapping, and can meet the support requirement of the core network slice in 5G.
An embodiment of the present invention further provides a method for generating a network slice, which is applied to a terminal, and as shown in fig. 2, the method includes:
step 201: a terminal receives a slice establishing or reconfiguring signaling sent by network side equipment, wherein the slice establishing or reconfiguring signaling is generated by the network side equipment according to configuration information carrying slice service quality requirements, an operation strategy of an operator and a service strategy;
step 202: the terminal generates a radio access layer slice.
Further, before the terminal receives a slice setup or reconfiguration signaling sent by the network side device, the method further includes:
the terminal and the core network negotiate the end-to-end slicing requirement through NAS signaling, and end-to-end slicing is established.
Further, after the terminal generates the radio access stratum slice, the method further includes:
and after receiving the control signaling of the network side equipment, the terminal completes the selection and the use of the empty port according to the signaling indication and replies a message of successful establishment of the wireless access layer slice to the network side equipment.
Further, the terminal generating the radio access stratum slice includes:
the NAS layer of the terminal configures NSSAI configuration information to the AS layer;
and the AS layer of the terminal completes corresponding mapping and control according to the NSSAI configuration information and the RAN signaling.
Further, the NSSAI configuration information includes at least one of the following parameters:
radio interface selection parameters, air interface radio resource frequency domain and time domain selection parameters, and service quality control parameters.
In this embodiment, a first network side device receives NSSAI configuration information sent by a core network, where the NSSAI configuration information carries slice qos requirements, the first network side device establishes a network slice according to the NSSAI configuration information, an operation policy of an operator, and a service policy, and notifies a terminal to generate a radio access stratum slice, and the terminal receives a slice establishment or reconfiguration signaling sent by the network side device and generates the radio access stratum slice. The technical scheme of the invention can enable the RAN side to support the parameter quantization scheme of the end-to-end network slice and the corresponding protocol stack function mapping, and can meet the support requirement of the core network slice in 5G.
The network slice generation method of the present invention is described in detail below with reference to the accompanying drawings:
in the technical scheme of the invention, the RAN side needs to support the scheme of end-to-end network slicing:
after receiving the configuration of the end-to-end network slice (NSSAI) of the Core Network (CN), the RAN side needs to simultaneously meet the operation and maintenance requirements of the operator and the requirements of the quality of service guarantee of the terminal service, so that the RAN side supports the end-to-end network slice and can define corresponding parameters from the operation and maintenance angle of the operator and the angle of the service/service.
As shown in fig. 3, the core network configures NSSAI to the base station (gNB) through SAP (service access point), and through NSSAI, the base station defines corresponding parameters and generates corresponding configuration and control from both the operation and maintenance perspective of the operator and the service/service perspective.
From the perspective of operation and maintenance of operators, the method mainly comprises parameters of two aspects of equipment Management (Platform Management) and Network Management (Network Management).
Equipment management: including dynamic shutdown and startup of equipment, equipment condition monitoring, deployment of equipment, setting of equipment functions, such as equipment for industrial applications of a plant and equipment facing general communication, may need to be isolated. After the platform is evolved to the cloud platform, platform functions can be uniformly managed and allocated through the cloud technology, for example, the non-differentiation capability of the platform equipment is realized through the virtualization technology, and the management and control of all equipment can be realized through the equipment management function.
Network management: the method comprises the steps of dividing and distinguishing the available range of a network tenant (tente) on the network, separating and dividing network functions, such as the separation and the division of network functions of industrial application and common communication, and dividing air interface network functions, such as the separation of signals through the setting of antenna emission.
From the perspective of service/service, the method mainly includes parameters in multiple aspects such as user Management (UEs), wireless Function (Wireless Function), radio Resource frequency domain and time domain Management (Radio Resource), and quality of service control (QoS control).
User management: the maintenance and storage of the user context are completed according to the characteristics of the user, and accurate results are provided when the user context is established, deleted, reconfigured and inquired. If the user belongs to different virtual operators (Tenant), the isolation and the safety protection of the user information are required to be realized, and the pertinence requirement of each virtual operator on the user information is required to be met.
Wireless function: according to the requirement of the core network slice, the control of the RAN radio function is completed, for example, if the core network service slice is an ultra-short delay core network service slice, the RAN side needs to arrange the protocol stack function to a place close to the air interface as much as possible. If the service is not very sensitive in delay, a part of the service may be placed close to the air interface, and a part of the service may be placed on a device far away from the air interface. When a network supports a variety of services, wireless functions are diverse, and it is necessary to ensure correctness and stability of control of the wireless functions.
Management of air interface wireless resource frequency domain and time domain: and performing control management on air interface wireless resources according to the requirement of network management. Such as: the air interface bandwidth of 100Mhz is divided into small bandwidths of a plurality of targeted users. Or changing the characteristics of the air interface resources in real time according to the characteristics of the air interface scheduling. Such as soft isolation of the air interface bandwidth for different virtual operators. And according to the user service form, carrying out real-time scheduling distribution on the air interface resources.
And (3) controlling the service quality: and aiming at the service slice of the core network and the network operation and maintenance requirements, reasonable service quality quantitative definition and guarantee are provided. For example, for an ultra-low delay service (identifier input by a core network slice) of a virtual operator (identifier input by network operation and maintenance), qoS (quality of service) control needs to complete QoS quantitative definition of the service in the RAN support capability range according to the weight and the ultra-low delay characteristics of the virtual operator in the network operation and maintenance, and start guarantee operation.
In the technical scheme of the invention, an AS (access stratum) at a terminal side needs to support an end-to-end network slice:
fig. 4 shows a schematic diagram of a scheme for supporting end-to-end network slicing by an AS at a terminal side. The network side issues NSSAI through Service API, NAS of the terminal configures NSSAI to AS layer, AS layer records the mark through NSSAI, and completes corresponding mapping and control according to RAN signaling.
The AS slice focuses on soft functions such AS an air interface process and control signaling of the terminal, and does not affect the software and hardware architecture of the terminal.
The terminal side mainly configures parameters in multiple aspects such as Wireless Interface Selection, air Interface Wireless resource frequency domain and time domain Selection (Radio Selection), and quality of service control (QoS control).
And (3) selecting a wireless interface: and according to the signaling or the indication of the network side, the terminal side completes corresponding air interface selection. For example, if the network side indicates the terminal to use the frequency point applied in the industry, the terminal side selects to use the air interface to complete access and data transceiving. And the network side indicates the terminal to use the frequency point of the universal communication, and the terminal uses the air interface to finish access and data receiving and transmitting.
Selecting an air interface wireless resource frequency domain and a time domain: and according to the signaling or the indication of the network side or the uplink authorization, the terminal side completes the corresponding time-frequency domain resource selection.
And (3) controlling the service quality: and providing reasonable service receiving and sending according to the signaling or the indication of the network side.
As shown in fig. 5, the non-network slicing procedure triggers NSSAI sent by the Core Network (CN), combines with the operation and maintenance policy of the operator at the RAN side and the service/service policy, generates a scheme for supporting end-to-end slicing, and configures the scheme to the terminal side through a wireless signaling.
First, a terminal (UE) and a network side negotiate end-to-end slice requirements, including isolation and quality of service requirements of the network slice, through NAS signaling (signaling of a core network and a terminal higher layer, and transparent signaling for RAN and AS).
After the end-to-end slice is successfully established, the core network informs the RAN to establish a network slice which can support the end-to-end slice at the network side. By sending NSSAI, the corresponding quality of service requirements are carried.
Then, after receiving NSSAI, RAN executes the following steps:
the method comprises the following steps: the RRC (radio resource control) receives NSSAI from the signaling sent by the CN, and then sends an NSSAI request to the RRM (radio resource management).
After receiving the NSSAI, the RRM analyzes the NASSI, and generates a scheme that the wireless access network side can support the function according to the slice service quality requirement of the core network identified by the NASSI:
a) And generating a scheme and corresponding parameters for network management and equipment management of the network side according to the operation strategy of the operator.
For the scheme, an independent tenant strategy can be established, the independent tenant can provide the wireless air interface guarantee with high slicing priority, and an equipment scheme with high isolation is provided on equipment; or adding the combination into the existing combination, and directly accessing the combination into the existing slice if the combination accords with the strategy and the rule of the existing slice; or other schemes.
For the parameters, parameters in terms of network management and device management on the network side are generated: 1) Operation of wireless device on network side
Operations for providing network management and device management on the maintenance software are performed, such as establishing a hardware device combination, selecting functions and services available for a tenant and the like. 2) Inside the wireless device on the network side, parameters corresponding to RRM (Radio Resource Management), such as setting parameters for antenna transmission, etc., are provided.
B) Generating a service/service policy according to the QoS algorithm and the configuration policy:
for the policy, a mapping relation between the corresponding bearer and the logical channel, a bearer capability scheme, and the like are generated.
For the parameters, parameters in the aspects of user management, radio function, air interface radio resource frequency domain and time domain management, service quality control and the like on the network side, and parameters in the aspects of interface selection, air interface radio resource frequency domain and time domain selection, service quality control and the like are generated, which includes:
1) Management parameters corresponding to the RRM on the network side, such as the context of the UE.
2) And the RRC at the network side generates air interface signaling configuration parameters and generates corresponding signaling to control the terminal and the base station.
3) And the network side MAC (media access control) performs dynamic and semi-dynamic scheduling control according to the use condition of the air interface wireless resources.
4) And the protocol stack function of the SDAP (service discovery application configuration file)/PDCP (packet data convergence protocol)/RLC (radio link layer control protocol) layer II on the network side provides service for the data of the user and then processes the data.
5) The network side selects a proper and controlled PHY (physical layer), such as a factory, according to network side RRC signaling or network side MAC, so that high robustness is required for implementing the control.
Step two: the RRM completes the support matching: 1. parameters and schemes for generating OM (operations and maintenance); 2. after the parameters and scheme of the radio resource supporting QoS are generated, NSSAI response information is sent to RRC.
Step three: RRC configures the parameters and the scheme of the OM to the OM; and the OM generates a corresponding device and network management scheme after receiving the configuration of the RRC.
Step four: OM replies to RRC with a response: success or failure. If successful, it means that the requirement of the corresponding operation and maintenance of the network-side slice is satisfied and has been operated normally. If it fails, the reason for the failure needs to be carried.
Step five: after receiving the success confirmation message of the OM, the RRC learns that the network side has successfully supported the slice of the network side, and the infrastructure (hardware and network configuration) has successfully operated. Then slice setup or reconfiguration (there is already a network side slice) signaling to the L2 (SDAP/PDCP/RLC/MAC) and PHY (physical layer) of the network side is generated, setting up the radio path for the policies of the traffic/service in the radio access network: bearer, logical channel, scheduling policy, air interface resource scheme, etc.
Step six: the network side sends RAN Slicing Setup or Reconfiguration signaling to the terminal over the air interface. And after the RRC at the terminal side receives the signaling of the RRC at the network side, the selection and the use of the air interface are completed according to the signaling indication. And replies that the establishment was successful.
In the subsequent signaling and data transceiving processes, after the MAC of the terminal side receives the indication of the MAC of the network side, the selection and the use of an air interface are completed according to the indication.
When a handover is required because of terminal movement:
1. as shown in fig. 6, the core network sends NSSAI Switch to the Source base station (Source NB), sends NSSAI Request to the destination base station (Target NB), and establishes a new network slice on the base station side, but activates an existing slice in a RAN Slicing Reconfiguration configuration for the terminal.
2. Or as shown in fig. 7, the NSSAI is sent to the destination base station by the RRC of the source base station, and a new network slice is generated in the manner of fig. 5, but the existing slice is activated for the terminal in the manner of RAN sliding Reconfiguration.
During switching, if the target base station can not meet the service quality requirement of the existing slice, the target base station needs to be negotiated with the source base station and then reported to the core network, and then the core network redefines the service quality of the slice and then establishes the slice again.
An embodiment of the present invention further provides a network-side device, as shown in fig. 8, including a processor 31 and a transceiver 32,
the transceiver 32 is configured to receive configuration information sent by a core network, where the configuration information carries a slicing qos requirement;
the processor 31 is configured to establish a network slice according to the configuration information, an operation policy of an operator, and/or a service policy, and notify the terminal to generate a radio access stratum slice.
In this embodiment, a first network side device receives configuration information sent by a core network, where the configuration information carries slice qos requirements, the first network side device establishes a network slice according to the configuration information, an operation policy of an operator, and/or a service policy, and notifies a terminal to generate a radio access stratum slice, and the terminal receives a slice establishment or reconfiguration signaling sent by the network side device and generates the radio access stratum slice. The technical scheme of the invention can enable the RAN side to support the parameter quantization scheme of the end-to-end network slice and the corresponding protocol stack function mapping, and can meet the support requirement of the core network slice in 5G.
Further, the configuration information is NSSAI configuration information,
the processor 31 is specifically configured to generate a network management parameter and an equipment management parameter of a network side according to an operation policy of an operator and/or the NSSAI configuration information; and/or
Generating a business service policy according to a QoS algorithm and/or the NSSAI configuration information, and generating at least one of the following parameters according to the business service policy:
user management parameters, wireless function parameters, air interface wireless resource frequency domain and time domain management parameters, and service quality control parameters, interface selection parameters, air interface wireless resource frequency domain and time domain selection parameters.
Further, the processor 31 includes:
the RRC module is used for receiving NSSAI response information sent by RRM, wherein the NSSAI response information carries an OM strategy and/or a strategy of wireless resource supporting QoS; and configuring the OM strategy to OM, sending slice establishment or reconfiguration signaling to the L2 layer module and the physical layer module after receiving a successful confirmation message returned by the OM, and sending the slice establishment or reconfiguration signaling to the terminal.
Further, after the terminal is switched from the first network side device to the second network side device,
the transceiver 32 of the second network side device is configured to receive configuration information sent by a core network, where the configuration information carries a slicing qos requirement;
the processor 31 of the second network side device is configured to establish a new network slice according to the configuration information, and send a slice reconfiguration signaling to the terminal to instruct the terminal to activate an existing network slice.
Further, after the terminal is switched from the first network side device to the second network side device,
the transceiver 32 of the second network side device is configured to receive configuration information sent by the first network side device, where the configuration information carries a slice qos requirement;
the processor 31 of the second network side device is configured to establish a new network slice according to the configuration information, and send a slice reconfiguration signaling to the terminal to instruct the terminal to activate an existing network slice.
Embodiments of the present invention further provide a terminal, as shown in fig. 9, including a processor 41 and a transceiver 42,
the transceiver 42 is configured to receive a slice establishment or reconfiguration signaling sent by a network side device, where the slice establishment or reconfiguration signaling is generated by the network side device according to configuration information carrying slice quality of service requirements, an operation policy of an operator, and a service policy;
the processor 41 is configured to generate a radio access stratum slice.
In this embodiment, a first network side device receives configuration information sent by a core network, where the configuration information carries a slice qos requirement, the first network side device establishes a network slice according to the configuration information, an operation policy of an operator, and a service policy, and notifies a terminal to generate a radio access stratum slice, and the terminal receives a slice establishment or reconfiguration signaling sent by the network side device and generates the radio access stratum slice. The technical scheme of the invention can enable the RAN side to support the parameter quantization scheme of the end-to-end network slice and the corresponding protocol stack function mapping, and can meet the support requirement of the core network slice in 5G.
Further, the processor 41 is further configured to negotiate an end-to-end slicing requirement with the core network through NAS signaling, and establish an end-to-end slicing.
Further, the processor 41 includes:
and the RRC module is used for finishing the selection and the use of the empty port according to the signaling indication after receiving the signaling of the RRC of the network side equipment, and replying a successful message of establishing the wireless access layer slice to the network side equipment.
Further, the processor 41 includes:
the NAS layer module is used for configuring NSSAI configuration information to the AS layer module;
and the AS layer module is used for finishing corresponding mapping and control according to the NSSAI configuration information and the RAN signaling.
Further, the NSSAI configuration information includes at least one of the following parameters:
radio interface selection parameters, air interface radio resource frequency domain and time domain selection parameters, and service quality control parameters.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the network slice generation method as described above.
The embodiment of the invention also provides a user terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the network slice generation method as described above.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the network slice generation method described above.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the invention as set forth in the appended claims.
Claims (21)
1. A network slice generation method is applied to a first network side device, and is characterized by comprising the following steps:
a first network side device receives configuration information sent by a core network, wherein the configuration information carries a slicing service quality requirement; the configuration information is NSSAI configuration information;
the first network side equipment establishes a network slice according to the configuration information, the operation strategy of an operator and the business service strategy and informs a terminal to generate a wireless access layer slice;
the first network side equipment issues NSSAI configuration information through an Application Programming Interface (API), the NAS of the terminal configures the NSSAI configuration information to the AS layer, and the AS layer finishes corresponding mapping and control according to the NSSAI configuration information and RAN signaling;
the first network side device defines corresponding parameters from the perspective of operation and maintenance of an operator and the perspective of service/service through NSSAI configuration information and generates corresponding configuration and control, wherein the corresponding configuration and control comprises configuration and control on device management, network management, user management, wireless function, air interface wireless resource frequency domain and time domain management and service quality control, and the configuration and control comprises the following steps:
the equipment management is to configure and control the dynamic shutdown and start of the equipment, the equipment state monitoring, the equipment laying and the equipment function setting;
the network management is to configure and control the division and the distinction of the available range of the network tenants on the network and the isolation and the division of the network functions;
the user management is to maintain and store user context according to the characteristics of the user, and provide accurate results for configuration and control when establishing, deleting, reconfiguring and inquiring the user context;
the wireless function is to configure and control the control of the RAN wireless function according to the requirement of the core network slice;
the management of the air interface wireless resource frequency domain and the time domain is to configure and control the air interface wireless resource according to the requirement of network management;
the service quality control is configured and controlled by providing reasonable service quality quantitative definition and guarantee aiming at core network service slices and network operation and maintenance requirements.
2. The method according to claim 1, wherein the establishing, by the first network-side device, the network slice according to the configuration information, the operation policy of the operator, and the business service policy includes:
the first network side equipment generates network management parameters and equipment management parameters of a network side according to an operation strategy of an operator and the NSSAI configuration information; and/or
The first network side device generates a service policy according to the QoS algorithm and the NSSAI configuration information, and generates at least one of the following parameters according to the service policy:
user management parameters, wireless function parameters, air interface wireless resource frequency domain and time domain management parameters, and service quality control parameters, interface selection parameters, air interface wireless resource frequency domain and time domain selection parameters.
3. The network slice generation method of claim 2, wherein notifying the terminal to generate the radio access stratum slice comprises:
the RRC module of the first network side device receives an NSSAI response message sent by the RRM module, wherein the NSSAI response message carries an OM strategy and/or a strategy of supporting QoS by wireless resources;
and the RRC module of the first network side equipment configures the OM strategy to the OM module, sends slice establishment or reconfiguration signaling to the L2 layer module and the physical layer module after receiving a success confirmation message returned by the OM, and sends the slice establishment or reconfiguration signaling to the terminal.
4. The method according to claim 1, wherein after the terminal is switched from the first network-side device to the second network-side device, the method further comprises:
the second network side equipment receives configuration information sent by a core network, wherein the configuration information carries slicing service quality requirements;
and the second network side equipment establishes a new network slice according to the configuration information and sends a slice reconfiguration signaling to the terminal to indicate the terminal to activate the existing network slice.
5. The method according to claim 1, wherein after the terminal is switched from the first network-side device to the second network-side device, the method further comprises:
the second network side equipment receives configuration information sent by the first network side equipment, wherein the configuration information carries slice service quality requirements;
and the second network side equipment establishes a new network slice according to the configuration information and sends a slice reconfiguration signaling to the terminal to indicate the terminal to activate the existing network slice.
6. A network slice generation method is applied to a terminal, and is characterized by comprising the following steps:
the method comprises the steps that a terminal receives a slice establishing or reconfiguring signaling sent by network side equipment, wherein the slice establishing or reconfiguring signaling is a signaling for generating and informing the terminal to generate a wireless access layer slice after the network side equipment establishes the network slice according to configuration information carrying slice service quality requirements, an operation strategy of an operator and a service strategy;
the method for generating the wireless access layer slice by the terminal according to the NSSAI configuration information issued by the network side equipment through the Application Programming Interface (API) comprises the following steps:
the NAS layer of the terminal configures NSSAI configuration information to the AS layer;
the AS layer of the terminal completes corresponding mapping and control according to the NSSAI configuration information and the RAN signaling;
the NSSAI configuration information defines corresponding parameters from the perspective of operator operation and maintenance and the perspective of service/service, and generates corresponding configuration and control, where the corresponding configuration and control includes configuration and control of device management, network management, user management, radio functions, frequency domain and time domain management of air interface radio resources, and quality of service control, where:
the equipment management is to configure and control the dynamic shutdown and start of the equipment, the equipment state monitoring, the equipment laying and the equipment function setting;
the network management is to configure and control the division and the distinction of the available range of the network tenants on the network and the isolation and the division of the network functions;
the user management is to maintain and store user context according to the characteristics of the user, and provide accurate results for configuration and control when establishing, deleting, reconfiguring and inquiring the user context;
the wireless function is to configure and control the control of the RAN wireless function according to the requirement of the core network slice;
the management of the air interface wireless resource frequency domain and the time domain is to configure and control the air interface wireless resource according to the requirement of network management;
the business service quality control is configured and controlled by providing reasonable business service quality quantitative definition and guarantee aiming at the core network business slice and the network operation and maintenance requirements.
7. The method according to claim 6, wherein before the terminal receives the slice setup or reconfiguration signaling sent by the network-side device, the method further comprises:
the terminal and the core network negotiate the slicing requirement from end to end through NAS signaling, and establish slicing from end to end.
8. The network slice generation method of claim 6, wherein after the terminal generates the radio access stratum slice, the method further comprises:
and after receiving the control signaling of the network side equipment, the terminal completes the selection and the use of the empty port according to the signaling indication and replies a message of successful establishment of the wireless access layer slice to the network side equipment.
9. The method of claim 6, wherein the NSSAI configuration information comprises at least one of the following parameters:
radio interface selection parameters, air interface radio resource frequency domain and time domain selection parameters, and service quality control parameters.
10. A network side device, comprising a processor and a transceiver,
the transceiver is used for receiving configuration information sent by a core network, and the configuration information carries slicing service quality requirements; the configuration information is NSSAI configuration information;
the processor is used for establishing a network slice according to the configuration information, the operation strategy of the operator and the business service strategy and informing the terminal to generate a wireless access layer slice;
the transceiver is also used for issuing NSSAI configuration information through an Application Programming Interface (API), the NAS of the terminal configures NSSAI to the AS layer, and the AS layer completes corresponding mapping and control according to the NSSAI configuration information and RAN signaling through NSSAI;
network side equipment defines corresponding parameters from the operation and maintenance perspective of an operator and the perspective of service/service through NSSAI configuration information and generates corresponding configuration and control, wherein the corresponding configuration and control comprises configuration and control on equipment management, network management, user management, wireless function, air interface wireless resource frequency domain and time domain management and service quality control, and the configuration and control comprises the following steps:
the equipment management is to configure and control the dynamic shutdown and start of the equipment, the equipment state monitoring, the equipment laying and the equipment function setting;
the network management is to configure and control the division and the distinction of the available range of the network tenants on the network and the isolation and the division of the network functions;
the user management is to maintain and store user context according to the characteristics of the user, and provide accurate results for configuration and control when establishing, deleting, reconfiguring and inquiring the user context;
the wireless function is to complete the configuration and control of the RAN wireless function according to the requirement of the core network slice;
the management of the air interface wireless resource frequency domain and the time domain is to configure and control the air interface wireless resource according to the requirement of network management;
the service quality control is configured and controlled by providing reasonable service quality quantitative definition and guarantee aiming at core network service slices and network operation and maintenance requirements.
11. The network-side device of claim 10,
the processor is specifically configured to generate a network management parameter and a device management parameter of a network side according to an operation policy of an operator and the NSSAI configuration information; and/or
Generating a business service strategy according to the QoS algorithm and the NSSAI configuration information, and generating at least one of the following parameters according to the business service strategy:
user management parameters, wireless function parameters, air interface wireless resource frequency domain and time domain management parameters, and service quality control parameters, interface selection parameters, air interface wireless resource frequency domain and time domain selection parameters.
12. The network-side device of claim 11, wherein the processor comprises:
the RRC module is used for receiving NSSAI response information sent by RRM, wherein the NSSAI response information carries an OM strategy and/or a strategy of wireless resource supporting QoS; and configuring the OM strategy to an OM, sending slice establishment or reconfiguration signaling to an L2 layer module and a physical layer module after receiving a success confirmation message returned by the OM, and sending the slice establishment or reconfiguration signaling to a terminal.
13. The network-side device of claim 10, wherein after the terminal is handed over from the first network-side device to the second network-side device,
the transceiver of the second network side device is configured to receive configuration information sent by a core network, where the configuration information carries a slicing qos requirement;
and the processor of the second network side device is configured to establish a new network slice according to the configuration information, and send a slice reconfiguration signaling to the terminal to instruct the terminal to activate an existing network slice.
14. The network-side device of claim 10, wherein after the terminal is handed over from the first network-side device to the second network-side device,
the transceiver of the second network side device is configured to receive configuration information sent by the first network side device, where the configuration information carries a slicing qos requirement;
and the processor of the second network side device is configured to establish a new network slice according to the configuration information, and send a slice reconfiguration signaling to the terminal to instruct the terminal to activate an existing network slice.
15. A terminal, comprising a processor and a transceiver,
the transceiver is used for receiving a slice establishment or reconfiguration signaling sent by network side equipment, wherein the slice establishment or reconfiguration signaling is a signaling for generating and informing the terminal to generate a wireless access layer slice after the network side equipment establishes the network slice according to configuration information carrying slice service quality requirements, an operation strategy of an operator and a service strategy;
wherein the content of the first and second substances,
the processor is used for generating a wireless access layer slice according to NSSAI configuration information issued by the network side equipment through an Application Programming Interface (API);
the processor includes:
the NAS layer module is used for configuring the NSSAI configuration information to the AS layer module;
the AS layer module is used for completing corresponding mapping and control according to the NSSAI configuration information and the RAN signaling;
the NSSAI configuration information defines corresponding parameters from the perspective of operator operation and maintenance and the perspective of service/service, and generates corresponding configuration and control, where the corresponding configuration and control includes configuration and control of device management, network management, user management, radio functions, frequency domain and time domain management of air interface radio resources, and quality of service control, where:
the equipment management is to configure and control the dynamic shutdown and start of the equipment, the equipment state monitoring, the equipment laying and the equipment function setting;
the network management is to configure and control the division and the distinction of the available range of the network tenants on the network and the isolation and the division of the network functions;
the user management is to maintain and store user context according to the characteristics of the user, and provide accurate results for configuration and control when establishing, deleting, reconfiguring and inquiring the user context;
the wireless function is to configure and control the control of the RAN wireless function according to the requirement of the core network slice;
the management of the air interface wireless resource frequency domain and the time domain is to configure and control the air interface wireless resource according to the requirement of network management;
the service quality control is configured and controlled by providing reasonable service quality quantitative definition and guarantee aiming at core network service slices and network operation and maintenance requirements.
16. The terminal of claim 15,
the processor is further configured to negotiate end-to-end slicing requirements with the core network via NAS signaling and establish end-to-end slicing.
17. The terminal of claim 15, wherein the processor comprises:
and the RRC module is used for finishing the selection and the use of the empty port according to the signaling indication after receiving the signaling of the RRC of the network side equipment, and replying a successful message of establishing the wireless access layer slice to the network side equipment.
18. The terminal of claim 15, wherein the NSSAI configuration information includes at least one of the following parameters:
radio interface selection parameters, air interface radio resource frequency domain and time domain selection parameters, and service quality control parameters.
19. A network-side device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor implements the network slice generation method of any of claims 1-5 when executing the program.
20. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor implements the network slice generation method of any of claims 6-9 when executing the program.
21. A computer-readable storage medium, on which a computer program is stored, which program, when executed by a processor, carries out the steps in the network slice generation method of any one of claims 1 to 5 or which program, when executed by a processor, carries out the steps in the network slice generation method of any one of claims 6 to 9.
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| CN112689326B (en) * | 2019-10-17 | 2022-11-22 | 中国移动通信有限公司研究院 | Method, terminal and network side equipment for indicating NSSAI carrying |
| US20230094982A1 (en) * | 2020-03-09 | 2023-03-30 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and device for communication processing |
| WO2021212515A1 (en) * | 2020-04-24 | 2021-10-28 | 北京小米移动软件有限公司 | Slicing service processing method, slicing service processing apparatus, and storage medium |
| CN111669754B (en) * | 2020-05-22 | 2022-09-02 | 中国联合网络通信集团有限公司 | Verification method and device |
| CN111769970B (en) * | 2020-05-28 | 2021-11-23 | 中国科学院计算技术研究所 | Network slice wireless resource demand management method |
| CN113824670B (en) * | 2020-06-18 | 2022-12-27 | 中国移动通信集团浙江有限公司 | 5G slice air interface protocol stack scheduling method and device and computing equipment |
| CN113014420A (en) * | 2021-02-01 | 2021-06-22 | 中盈优创资讯科技有限公司 | Automatic opening method and device for 5G wireless subnet slice |
| CN115209564B (en) * | 2021-04-12 | 2024-04-30 | 成都鼎桥通信技术有限公司 | Network slice matching method, device, equipment and storage medium |
| CN115473814A (en) * | 2021-05-24 | 2022-12-13 | 中国移动通信有限公司研究院 | Network slice connection configuration method and device and network equipment |
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