CN109151817A - A kind of uRLLC slice and requesting method towards 5G user - Google Patents
A kind of uRLLC slice and requesting method towards 5G user Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/17—Selecting a data network PoA [Point of Attachment]
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- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
- H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
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Abstract
The highly reliable low time delay uRLLC slice and requesting method that the invention discloses a kind of towards 5G user, the soft base station module of edge calculations of the highly reliable low time delay uRLLC slice, the slice for overcoming the prior art needs to make a large amount of decisions, Shi Yanchang can not be sliced the problem of user provides the service of real-time network for the network to delay sensitive；The service request method of highly reliable low time delay uRLLC slice overcomes and increases the problem of new module makes the complexity increase of cordless communication network and the poor problem of the tediously long real-time sexual experience for making user of data link in existing service request method.The present invention improves the service quality and business experience of 5G delay sensitive class service-user by reducing transmission time of the user data from access net to core net integrally to reduce the propagation delay time of end to end network.
Description
Technical Field
The invention belongs to the technical field of communication, and further relates to a 5G user-oriented high-reliability Low latency Communications (uRLLC) slice and a request method in the technical field of wireless communication. The invention can be used for reducing the transmission time of user data from an access network to a core network in a wireless communication system, thereby integrally reducing the transmission delay of an end-to-end network and improving the service quality and service experience of 5G delay sensitive service users.
Background
An end-to-end network refers to the complete communication network from the user to the access network to the transport network to the core network. The high-reliability low-delay uRLLC slice refers to that a traditional physical Network of a 5G high-reliability low-delay application scene is divided into virtual slice networks by means of a Network Function Virtualization (NFV) technology. The user access high-reliability low-time-delay uRLLC slice can reduce the transmission time of user data between an access network and a core network, thereby integrally reducing the transmission time delay of an end-to-end network and greatly improving the service experience of the user.
The patent document "method and system for implementing network slicing" (application date: 2016, 10, month, 20, application number: 201610915169.9, application publication number: CN 107969017 a) applied by the company of telecommunications limited china proposes a method for implementing network slicing. The method comprises the following specific steps: firstly, when a user accesses a network, a slice selector selects a control plane slice for the user according to at least one of the type of the user, the network condition of the slice and the service type. And secondly, when the user needs to execute the service, the control plane slice selects the user plane slice for the user according to at least one item of the type of the user, the network condition of the slice and the service type. And thirdly, the control plane slice and the user plane slice provide network capacity for the user in an information interaction mode. Although the method can improve the utilization rate of the slice, the method has the defects that a control plane slice and a user plane slice are required to be respectively selected according to the user type and the network condition, and a slice selector and the control plane slice need to make a large number of decisions and are time-prolonged, so that real-time network service cannot be provided for a network slice user sensitive to time delay.
Qinghua university proposes a user service request selection method based on end-to-end network slices in the patent document 'end-to-end network slice-based user service request selection method' (application date: 2016, month 07, day 11, application number: 201610540058.4, application publication number: CN 106210042A). The method comprises the following specific steps: in the first step, the user sends a new service request to the server through the wireless access point. In a second step, the server forwards the user service request to the SDN controller. And thirdly, authenticating and authorizing the user by the SDN controller. And fourthly, if the authentication is passed, the server selects a proper network slice ID for the user to match according to the service type, the use type and the subscription information of the user. And fifthly, if the matching is successful, the server informs the access network, the SDN controller and the S/P-GW gateway to establish a data transmission link for user interconnection. And sixthly, the server sends a service request success response to the user. The method improves the resource utilization rate by sharing partial network functions, but the method still has two defects: first, the complexity of the wireless communication network is increased by adding SDN controllers. Secondly, a service request of a user passes through a wireless access point and a server to an SDN controller, meanwhile, the server is informed of the authentication of the SDN controller, the server selects a proper network slice ID for the user, and the server simultaneously informs an access network, the SDN controller and an S/P-GW gateway to establish a data transmission link.
Disclosure of Invention
The invention aims to provide a high-reliability low-time delay uRLLC slice and a request method for 5G users aiming at the defects of the prior art, the edge of the high-reliability low-time delay uRLLC slice is used for calculating a soft base station module, so that the transmission time of user data from an access network to a core network is reduced, and the high-reliability low-time delay uRLLC slice request method is well suitable for time delay sensitive services, does not need to increase a new module and shorten a data transmission link, and greatly improves the real-time service experience of the users.
The idea of the invention for realizing the above purpose is that the edge computing soft base station module of the high-reliability low-delay uRLLC slice comprises a baseband processing unit BBU and a core network data plane module, a user is directly connected to the Internet from the edge computing soft base station module, the user firstly sends a service request to the edge computing soft base station module, the edge computing soft base station module forwards the service request information to the core network control plane module for authentication, when the service request of the user passes the authentication, the edge computing soft base station module establishes a data transmission link for the user, the user accesses the high-reliability low-delay uRLLC slice to obtain the service, and the core network control plane module sends a successful response of the service request to the user; and when the service request of the user does not pass the authentication, the core network control plane module sends a service request failure response to the user.
The invention relates to a high-reliability low-delay uRLLC slice facing 5G users, which comprises a core network control surface module and an edge computing soft base station module, wherein the core network control surface module and the edge computing soft base station module are connected through an S1-MME interface and an S11 interface; wherein,
the edge computing soft base station module comprises a baseband processing unit BBU (baseband processing unit) and a service gateway S-GW and a packet data network gateway P-GW of a core network data plane module, wherein the baseband processing unit BBU and the service gateway S-GW establish connection through an S1-U interface, the service gateway S-GW and the packet data network gateway P-GW establish connection through an S5 interface, the baseband processing unit BBU is used for forwarding service request information of a user to the core network control plane module, and the baseband processing unit BBU, the service gateway S-GW and the packet data network gateway P-GW establish a data transmission link for the user successfully authenticated;
the core network control plane module comprises a mobile management entity MME and a home subscriber server HSS, the mobile management entity MME and the home subscriber server HSS are connected through S6a, the mobile management entity MME and the home subscriber server HSS are used for judging whether user service request information meets an authentication condition or not, the mobile management entity MME informs an edge computing soft base station module of authentication success information, the mobile management entity MME sends a service request success response to a user with successful authentication, and the mobile management entity MME sends a service request failure response to a user with failed authentication.
The invention relates to a 5G user-oriented high-reliability low-delay uRLLC slicing request method, which comprises the following steps:
(1) the user sends service request information to the edge computing soft base station module;
(2) forwarding the service request:
a baseband processing unit (BBU) of the edge computing soft base station module forwards service request information of a user to a core network control plane module;
(3) a mobile management entity MME and a home subscriber server HSS of a core network control plane module judge whether the user service request information meets the authentication condition, if so, the step (4) is executed, otherwise, the step (6) is executed;
(4) establishing a data transmission link:
a mobile management entity MME of a core network control surface module informs an edge computing soft base station module of successful authentication information, and a base band processing unit BBU, a service gateway S-GW and a packet data network gateway P-GW of the edge computing soft base station module establish a data transmission link for a user successfully authenticated;
(5) sending a service request success response:
a mobile management entity MME of a core network control surface module sends a service request success response to a user successfully authenticated through an edge computing soft base station module, and the user successfully authenticated obtains a high-reliability low-delay uRLLC slicing service;
(6) sending a service request failure response:
and the MME of the core network control plane module sends a service request failure response to the user with failed authentication through the edge computing soft base station module.
Compared with the prior art, the invention has the following advantages:
firstly, the edge calculation soft base station module in the high-reliability low-delay uRLLC slice is used for forwarding the service request information of the user to the core network control plane module, establishing a data transmission link for the user with successful authentication, and overcoming the problems that the slice in the prior art needs to make a large number of decisions, is time-prolonged and cannot provide real-time network service for the network slice user sensitive to the delay, so that the high-reliability low-delay uRLLC slice reduces the transmission time of the user data between an access network and a core network, is well suitable for delay sensitive services, and provides real-time network service for the network slice user sensitive to the delay.
Secondly, in the high-reliability low-delay uRLLC slice request method, the core network control surface module informs the edge computing soft base station module to establish a data transmission link for the user, so that the high-reliability low-delay uRLLC slice service is provided, the problems that the complexity of a wireless communication network is increased due to the addition of a new module in the existing service request method and the real-time experience of the user is poor due to the redundant data link are solved, the new module does not need to be added, the data transmission link is shortened, and the real-time service experience of the user is greatly improved.
Description of the drawings:
FIG. 1 is a flow chart of the present invention;
fig. 2 is a view of a service request scenario of the high-reliability low-latency urrllc slice according to the present invention.
The specific implementation mode is as follows:
the invention is further described below with reference to the accompanying drawings.
The implementation steps of the present invention are further described with reference to fig. 1.
Step 1, a user sends service request information to an edge computing soft base station module.
The service request information comprises subscription information of a user, high-reliability low-delay uRLLC slice request information and QoS (quality of service) requirement information.
And 2, forwarding the service request.
And a baseband processing unit (BBU) of the edge computing soft base station module forwards the service request information of the user to the core network control plane module.
And 3, judging whether the user service request information meets the authentication condition by a Mobile Management Entity (MME) and a Home Subscriber Server (HSS) of the core network control plane module, if so, executing the step 4, and otherwise, executing the step 6.
The authentication condition is as follows: firstly, a MAC in a visa token AUTN sent to a user by a core network control plane module is matched with an XMAC calculated by the user; secondly, a visa token RES sent by the user to the core network control plane module is matched with the XRES of the core network control plane module.
And 4, establishing a data transmission link.
And the mobile management entity MME of the core network control plane module informs the edge computing soft base station module of successful authentication information, and a base band processing unit BBU, a service gateway S-GW and a packet data network gateway P-GW of the edge computing soft base station module establish a data transmission link for the user successfully authenticated.
The data transmission link refers to: and under the control signaling of the core network control surface module, connecting the successfully authenticated user to the Internet through the edge computing soft base station module.
And 5, sending a service request success response.
And the MME of the core network control plane module sends a successful service request response to the successfully authenticated user through the edge computing soft base station module, and the successfully authenticated user obtains the high-reliability low-delay uRLLC slicing service.
And 6, sending a service request failure response.
And the MME of the core network control plane module sends a service request failure response to the user with failed authentication through the edge computing soft base station module.
Fig. 2 is a high-reliability low-delay uRLLC sliced service request scene diagram, where fig. 2 includes a cloud-shaped graph, a core network real coil, a core network control plane module, a core network data plane module, an access network real coil, an edge computing soft base station module, a dotted arrow between the core network data plane module and the edge computing soft base station module, a user-passing, edge computing soft base station module, and a bold dotted line of the cloud-shaped graph. Wherein: a cloud-like graph representing the Internet. The core network control plane module is a set of a core network solid line circle, a core network control plane module and a core network data plane module. And the core network control plane module authenticates the service request information of the user, informs the edge computing soft base station module of the successful authentication information, sends a successful service request response to the user with successful authentication, and sends a failed service request response to the user with failed authentication. And the core network data plane module sinks to be deployed to the core network data plane module before the access network. And accessing a set of real coils and edge computing soft base station modules. And the edge computing soft base station module forwards the service request information of the user to the core network control plane module to establish a data transmission link for the user successfully authenticated. The dotted arrow between the core network data plane module and the edge computing soft base station module represents that the core network data plane module sinks and deploys into the access network to form the edge computing soft base station module. The user is a user making a service request to the high-reliability low-delay uRLLC slice. The data transmission link of the user is represented by the bold dashed line passing through the user, the edge computing soft base station module and the cloud-like graph.
The following describes, with reference to fig. 2, establishing a data transmission link, sending a service request success response, and sending a service request failure response in step 4, step 5, and step 6 of the present invention.
The core network control plane module informs the edge computing soft base station module of successful authentication information, under the control signaling of the core network control plane module, a user successfully authenticated is connected to the Internet through the edge computing soft base station module, and does not need to be connected to the Internet from the core network data plane module, so that an end-to-end data link of a high-reliability low-delay network is formed, and the core network control plane module sends a service request successful response to the user meeting the authentication condition through the edge computing soft base station module; and when the service request information of the user does not meet the authentication condition, the core network control plane module sends a service request failure response to the user who does not meet the authentication condition through the edge computing soft base station module.
Claims (5)
1. A high-reliability low-delay uRLLC slice facing 5G users comprises a core network control surface module and is characterized by also comprising an edge computing soft base station module, wherein the core network control surface module and the edge computing soft base station module are connected through an S1-MME interface and an S11 interface; wherein,
the edge computing soft base station module comprises a baseband processing unit BBU (baseband processing unit) and a service gateway S-GW and a packet data network gateway P-GW of a core network data plane module, wherein the baseband processing unit BBU and the service gateway S-GW establish connection through an S1-U interface, the service gateway S-GW and the packet data network gateway P-GW establish connection through an S5 interface, the baseband processing unit BBU is used for forwarding service request information of a user to the core network control plane module, and the baseband processing unit BBU, the service gateway S-GW and the packet data network gateway P-GW establish a data transmission link for the user successfully authenticated;
the core network control plane module comprises a mobile management entity MME and a home subscriber server HSS, the mobile management entity MME and the home subscriber server HSS are connected through S6a, the mobile management entity MME and the home subscriber server HSS are used for judging whether user service request information meets an authentication condition or not, the mobile management entity MME informs an edge computing soft base station module of authentication success information, the mobile management entity MME sends a service request success response to a user with successful authentication, and the mobile management entity MME sends a service request failure response to a user with failed authentication.
2. A high-reliability low-delay uRLLC slice request method facing 5G users is characterized in that a core network control surface module informs an edge calculation soft base station module, and the edge calculation soft base station module establishes a data transmission link for the users; the method comprises the following steps:
(1) the user sends service request information to the edge computing soft base station module;
(2) forwarding the service request:
a baseband processing unit (BBU) of the edge computing soft base station module forwards service request information of a user to a core network control plane module;
(3) a mobile management entity MME and a home subscriber server HSS of a core network control plane module judge whether the user service request information meets the authentication condition, if so, the step (4) is executed, otherwise, the step (6) is executed;
(4) establishing a data transmission link:
a mobile management entity MME of a core network control surface module informs an edge computing soft base station module of successful authentication information, and a base band processing unit BBU, a service gateway S-GW and a packet data network gateway P-GW of the edge computing soft base station module establish a data transmission link for a user successfully authenticated;
(5) sending a service request success response:
a mobile management entity MME of a core network control surface module sends a service request success response to a user successfully authenticated through an edge computing soft base station module, and the user successfully authenticated obtains a high-reliability low-delay uRLLC slicing service;
(6) sending a service request failure response:
and the MME of the core network control plane module sends a service request failure response to the user with failed authentication through the edge computing soft base station module.
3. The method as claimed in claim 2, wherein the service request information in step (1) includes subscription information of the user, high-reliability low-delay uRLLC slice request information, and QoS requirement information.
4. The method for requesting high-reliability low-latency uRLLC slice for 5G user according to claim 2, wherein the authentication condition in step (3) is: firstly, a MAC in a visa token AUTN sent to a user by a core network control plane module is matched with an XMAC calculated by the user; secondly, a visa token RES sent by the user to the core network control plane module is matched with the XRES of the core network control plane module.
5. The method for requesting the slice of the urrllc with high reliability and low time delay for 5G users as claimed in claim 2, wherein the data transmission link in step (4) is: and under the control signaling of the core network control surface module, connecting the successfully authenticated user to the Internet through the edge computing soft base station module.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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