CN211267092U

CN211267092U - Subway wireless communication comprehensive bearing system based on 5G

Info

Publication number: CN211267092U
Application number: CN202021344306.6U
Authority: CN
Inventors: 彭涛; 周益平
Original assignee: Wuhan Zhihui Subway Tech Co ltd
Current assignee: Wuhan Zhihui Subway Tech Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2020-08-14
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a subway wireless communication synthesizes and bears system based on 5G, including public network 5G core network, subway 5G private network section, the main switch, the core switch, private network switch and set up in the 5G basic station along the subway track, public network user side passes through the core switch and links to each other with the AMF module, the AMF module links to each other with public network 5G core network, and public network 5G core network links to each other with the internet through the core switch, private network user terminal passes through the main switch and links to each other with the AMF module, the AMF module links to each other and links to each other with subway 5G private network section through private network switch. The utility model discloses a public network and 5 wireless communication systems of private network share one set of 5G network, distribute different grade type network section for each service system according to different demand characteristics, guarantee the business and bear the weight of the quality, improve wireless system's utilization ratio.

Description

Subway wireless communication comprehensive bearing system based on 5G

Technical Field

The utility model relates to a subway information technology field, more specifically relates to a subway radio communication synthesizes bearing system based on 5G.

Background

At present, 5 wireless communication networks such as a public network wireless communication network, a signal system wireless communication network of a subway private network, a special communication system wireless communication network, a passenger information system wireless communication network, a public security communication system wireless communication network and the like exist in a subway, and the 5 wireless communication networks are respectively constructed by adopting different wireless systems, different frequency bands and different devices and are also used and maintained by different personnel. With the continuous improvement of the intelligent level of the subway, more and more equipment and supporting facilities are installed on a subway train, in a subway tunnel and in a subway machine room, the installation space is limited, and the problems of installation conflict and mutual interference to a certain extent exist when 5 sets of wireless communication system equipment are installed in a narrow space of the subway; part of wireless systems work in adjacent frequency bands, performance indexes are reduced along with the long-term working of wireless equipment, and the risk of adjacent frequency interference exists; although some functions have certain repeatability, 5 sets of wireless systems are still independently constructed due to different security levels, and a certain merging optimization space exists along with the development of the technical level; in addition, 5 sets of systems adopt different systems, higher technical requirements are put forward for operation and maintenance personnel, and the maintenance workload is large.

In summary, the main disadvantages of the existing subway wireless system construction mode are as follows:

1. the long-term service performance of the equipment is reduced, and the risk of wireless adjacent channel interference exists, so that the normal operation is influenced.

2. Different wireless systems are adopted, the maintenance amount is large, and the technical requirement on maintenance personnel is high.

3. The functional parts are repeated, and a certain degree of resource waste exists.

4. The installation space in the subway tunnel and on the subway train is limited, and equipment, especially antenna feeder equipment, can not be installed according to the requirements of each system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that it is not enough to above-mentioned current subway wireless system construction mode, provide a subway radio communication synthesizes bearing system based on 5G.

According to an aspect of the utility model provides a subway radio communication synthesizes and bears system based on 5G, including public network 5G core network, subway 5G private network section, main switch, core switch, private network switch and set up in the 5G basic station along the subway track line, public network user passes through the core switch links to each other with the AMF module, the AMF module with public network 5G core network links to each other, just public network 5G core network passes through the core switch links to each other with the internet, and private network user terminal passes through the main switch with the AMF module links to each other, the AMF module links to each other the private network switch with subway 5G private network section links to each other.

On the basis of the above scheme, preferably, the public network 5G core network includes a user data management module, a policy control module, a network storage module, a session management module, and a user plane layer, the main switch is connected to the core switch through the user plane layer, and the user plane layer and the session management module are respectively connected to the user data management module, the policy control module, and the network storage module.

On the basis of the scheme, the subway 5G special network slice preferably comprises a user data management module, a strategy control module, a network storage module, a session management module and a user plane layer, the main switch is connected with the subway 5G special network slice through the private network switch, and the user plane layer and the session management module are respectively connected with the user data management module, the strategy control module and the network storage module.

Compared with the prior art, the utility model discloses a concrete technological effect has:

1. the public network and the subway private network share one subway coverage 5G network, only one section of 100MHz frequency is needed, and the wireless system interference problem does not exist even if the network is operated for a long time.

2. The operator is responsible for managing the whole 5G network resources of the public network and the private network, the subway is responsible for managing the private network user data, the management interface is clear and simple, and the technical requirement on subway personnel is low.

3. The 5 wireless communication systems of the public network and the private network share one set of 5G network, and different types of network slices are distributed to each service system according to different requirements, so that the service bearing quality is ensured, and the utilization rate of the wireless system is improved.

4. Only one set of 5G network equipment needs to be installed in the subway tunnel and in the upper region of a subway train, and the problem that the installation space is not enough is solved.

Drawings

Fig. 1 is the utility model discloses a subway radio communication synthesizes and bears system's block diagram based on 5G.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Please refer to fig. 1, the utility model discloses a subway wireless communication synthesizes and bears system based on 5G, including public network 5G core network 10, subway 5G private network section 20, main switch 30, core switch 40, private network switch 50 and set up in 5G base station 60 along the subway track, public network user side 70 passes through core switch 40 and links to each other with AMF (Access and mobility Management Function) module 90, AMF module 90 links to each other with public network 5G core network 10, and public network 5G core network 10 links to each other with the internet through core switch 40, private network user 80 terminal passes through main switch 30 and links to each other with AMF module 90, AMF module 90 links to each other and links to each other in subway 5G private network section 20 through private network switch 50.

Wherein, the utility model discloses a public network 5G core network 10 includes user data management module 11, policy control module 12, network storage module 13, session management module 14 and user plane layer 15, and main switch 30 passes through user plane layer 15 and links to each other with core switch 40, and user plane layer 15 and session management module 14 link to each other with user data management module, policy control module 12 and network storage module 13 respectively.

The utility model discloses a subway 5G private network section 20 includes user data management module 21, policy control module 22, network storage module 23, session management module 24 and user plane layer 25, and main exchange board 30 links to each other with subway 5G private network section 20 through private network exchange board 50, and user plane layer 25 and session management module 24 link to each other with user data management module, policy control module 22 and network storage module 23 respectively.

When the system is used, 5G wireless network coverage is carried out in an elevated area along a subway track by adopting a BBU (Building Base band Unit), an AAU (Active Antenna Unit) or a RRU (Radio Remote Unit) and an array Antenna to construct a 5G Base station 60, when a user of a public network user end 70 accesses, the user is firstly connected with a core switch 40 through the 5G Base station 60, identified by the core switch 40 and then sent to an AMF module 90, and the control of the 5G core network of an operator is completed; after the public network user terminal completes 5G network access, the subway rail-side 5G base station 60 will distribute the data of the user to the operator 5G core network, and finally forward to the target public network user.

When the private network user 80 terminal is connected to the 5G base station 60 beside the railway, after interacting with the main switch 30, the AMF module 90 of the operator performs access control, the authentication server function module of the iron 5G private network slice performs user authentication, the network slice selection function module performs network slice selection, and the SMF (session management function) module performs session management, thereby finally completing the private user terminal access work. After the private network user 80 terminal completes 5G network access, the subway rail-side 5G base station 60 will distribute the user's data to the subway 5G core network, and finally forward to the target private network user 80.

2. The operator is responsible for managing the overall 5G network resources of the public network and the private network, the subway is responsible for managing the data of the private network users 80, the management interface is clear and simple, and the technical requirement on subway personnel is low.

Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a subway radio communication synthesizes and bears system based on 5G, its characterized in that, include public network 5G core network, subway 5G private network section, main switch, core switch, private network switch and set up in the 5G basic station along the subway track line, public network user passes through the core switch links to each other with the AMF module, the AMF module with public network 5G core network links to each other, just public network 5G core network passes through the core switch links to each other with the internet, and private network user terminal passes through the main switch with the AMF module links to each other, the AMF module links to each other the process private network switch with subway 5G private network section links to each other.

2. A 5G-based subway wireless communication integrated bearer system as claimed in claim 1, wherein said public network 5G core network includes a user data management module, a policy control module, a network storage module, a session management module and a user plane layer, said main switch is connected to said core switch through said user plane layer, and said user plane layer and said session management module are respectively connected to said user data management module, policy control module and said network storage module, and said user data management module is connected to said main switch through an AMF module.

3. The integrated bearer system for wireless communication of a subway based on 5G as claimed in claim 1, wherein said subway 5G private network slice includes a user data management module, a policy control module, a network storage module, a session management module and a user plane layer, said main switch is connected with said subway 5G private network slice through said private network switch, and said user plane layer and said session management module are respectively connected with said user data management module, policy control module and said network storage module.