WO2020062266A1

WO2020062266A1 - Cluster communication failure weakening system, method and network node

Info

Publication number: WO2020062266A1
Application number: PCT/CN2018/109157
Authority: WO
Inventors: 吴志敏
Original assignee: 海能达通信股份有限公司
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2020-04-02

Abstract

Provided by the present invention are a cluster communication failure weakening system, method and network node. The system comprises: a base station having at least two sets of public land mobile networks; a remote core network corresponding to the at least two sets of public land mobile networks, wherein when a set of link connections of the remote core network and the base station each fail, the sets of public land mobile networks enter a failure weakening mode; and a local core network; when the sets of public land mobile networks enter the failure weakening mode, the base station establishes a link connection with the local core network to provide services for a mobile station belonging to the sets of public land mobile networks so as to reduce the impact of network physical link or device failure on communication.

Description

Cluster communication failure weakening system, method and network node

[Technical Field]

The present invention relates to the field of communications, and in particular, to a system, method, and network node for weakening cluster communication failures.

【Background technique】

In the prior art, a cluster communication system is mainly composed of a terminal, a wireless broadband access system, and a network subsystem (network side). The terminals mainly include handheld devices, vehicle terminals, fixed stations, wireless dispatchers, and wired dispatchers; wireless broadband access The access system is mainly composed of base stations; the network subsystem is mainly composed of core networks. The operation of the base station is controlled by the network side. Since the cluster communication system is mostly used in important areas such as government departments, public safety, emergency communications, power, civil aviation, petrochemicals, and the military, the wireless broadband access system is required to have higher fault tolerance and redundant backup capabilities to ensure that In the event of a network-side (core network) failure, cluster users should still be able to communicate to minimize the impact of network-side failures and minimize the risks of network failures.

The fault weakening mode is an important function in the cluster system. It can provide basic communication services for cluster users when the cluster's network is paralyzed due to system physical link or network control equipment failure, thereby reducing the network physical link. Or the degree of impact of equipment failure on communication, to ensure the maximum dispatch and command of professional cluster users. 3GPP has proposed a method for weakening IOPS faults, but for the case of network sharing, the prior art does not provide a solution.

[Summary of the Invention]

The technical problem mainly solved by the present invention is to provide a system, method and network node for weakening cluster communication failures, so as to reduce the impact of network physical link or equipment failure on communication.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a system for weakening a cluster communication fault, including:

A base station configured with at least two sets of public land mobile networks;

A remote core network corresponding to each of the at least two sets of public land mobile networks. When the connection between the remote core network corresponding to a set of public land mobile networks and the base station fails, the group of public land mobile networks enters a failure weakening mode, and the rest of the public The remote core network corresponding to the land mobile network works normally;

A local core network, when the group of public land mobile networks enters a failure weakening mode, the base station is connected to the local core network to provide services to mobile stations connected to the group of public land mobile networks.

To solve the above technical problems, another technical solution adopted by the present invention is:

Provides a method for weakening cluster communication failures, including:

Setting up at least two sets of public land mobile networks in the base station;

When the connection between the remote core network corresponding to one of the at least two sets of public land mobile networks and the base station fails, the base station is connected to the local core network, and the remote core networks corresponding to other public land mobile networks work normally, and

The group of public land mobile networks enters a failure weakening mode, and mobile stations belonging to the group of public land mobile networks are connected to the local core network to obtain normal public safety services.

Provide a network node, including:

A communication component for communicating with other communication equipment;

Memory for storing programs; and

A processor coupled to the memory executes a method for weakening a cluster communication fault when running a program stored in the memory, the method including:

The beneficial effect of the present invention is that, different from the situation of the prior art, the present invention provides a system for weakening trunking communication faults, including: a base station configured with at least two sets of public land mobile networks; and the at least two sets of public land mobile networks The remote core network corresponding to the network, when a group of remote core networks fails to connect to the base station, the group of public land mobile networks enters a failure weakening mode; the local core network is described when the group of public land mobile networks enters a failure weakening mode The base station is connected to the local core network to provide services for mobile stations connected to the group of public land mobile networks. Based on the above system, the present invention also provides a method for weakening a cluster failure, which reduces the impact of network physical link or equipment failure on communication.

[Brief Description of the Drawings]

FIG. 1 is a schematic structural diagram of an IOPS fault weakening method proposed by 3GPP in the prior art;

FIG. 2 is a schematic structural diagram of a system for weakening a cluster communication fault according to the present invention; FIG.

3 is a schematic structural diagram of a first embodiment of a cluster communication fault weakening system of the present invention entering a fault weakening mode;

4 is a schematic structural diagram of a second embodiment of a cluster communication fault weakening system of the present invention entering a fault weakening mode;

5 is a schematic structural diagram of a third embodiment of a cluster communication fault weakening system of the present invention entering a fault weakening mode;

FIG. 6 is a schematic structural diagram of exiting a fault weakening mode of a cluster communication fault weakening system according to the present invention; FIG.

7 is a schematic flowchart of a method for weakening a cluster communication fault according to the present invention;

FIG. 8 is a schematic structural diagram of a network node according to the present invention.

【detailed description】

In order to make the objectives, technical solutions, and advantages of the present invention clearer, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be arbitrarily combined with each other.

In the figure, EPC is the remote core network, PLMN is the public land mobile network, PLMN and GROUP are the public land mobile network group, S1 is the communication link between the base station and the remote core network and the local core network, and IOPS is the fault weakening mode. Public land mobile network.

Please refer to FIG. 2, which is a schematic structural diagram of a system for weakening a cluster communication fault according to the present invention. The cluster communication failure weakening system includes a base station 2, a remote core network 3, a local core network 4, and a mobile station 1.

Specifically, the base station 2 is configured with at least two sets of public land mobile networks; the at least two sets of public land mobile networks are provided by different operators, and the number of public land mobile networks is the same as the number of operators; the Each group of public land mobile networks consists of public land mobile networks of the same operator.

Further, when the S1 link connection between the remote core network 3 and the base station 2 corresponding to a group of public land mobile networks fails, an S1 link connection is established between the base station 2 and the local core network 4. Group public land mobile network entered IOPS failure weakening mode.

Further, after the S1 link connection between the remote core network 3 and the base station 2 corresponding to at least one public land mobile network in a group of public land mobile networks is restored, the group of public land mobile networks exits the IOPS fault weakening mode, The mobile station 1 belonging to the group of public land mobile networks connects to the remote core network 3 to obtain normal public safety network services, and disconnects from the local core network 4.

Further, when the at least two sets of public land mobile networks of the base station 2 all exit the IOPS fault weakening mode, the base station 2 disconnects the S1 link connection with the local core network 4.

Please refer to FIG. 3, which is a schematic structural diagram of a first embodiment of a cluster communication fault weakening system of the present invention entering a fault weakening mode. This embodiment is a network sharing in the case of MOCN. The cluster communication failure weakening system is composed of a base station 2, a mobile station 1, a local core network 4, and a remote core network 3 (including a remote core network EPC1 and a remote core network EPC2). The base station 2 is shared by two sets of public land mobile networks PLMN, GROUP1 and PLMN, GROUP2. The first set of public land mobile networks PLMN, GROUP1 includes the public land mobile network PLMN1, and the second set of public land mobile networks PLMN, GROUP2 includes the public land mobile network PLMN2, and The remote core network corresponding to the public land mobile network PLMN1 is EPC1, and the remote core network corresponding to the public land mobile network PLMN2 is EPC2.

Specifically, the two sets of public land mobile networks PLMN, GROUP1 and PLMN, GROUP2 are provided by different operators (such as China Mobile and China Unicom), and each group of public land mobile networks is composed of the public land mobile network of the same operator, as described in Section 1. One group of public land mobile networks PLMN and GROUP1 are provided by mobile operators, while the second group of public land mobile networks PLMN and GROUP2 are provided by Unicom operators.

Specifically, when the S1 link connections between the base station 2 and the remote core network EPC1 and the remote core network EPC2 are normal, the base station 2 broadcasts in the cell configured with the PLMN belonging to the first group of public land mobile network PLMN and GROUP1. PLMN1 broadcasts PLMN2 in a cell configured with a PLMN belonging to the second group of public land mobile networks PLMN and GROUP2.

When the S1 link connection between the base station 2 and the remote core network EPC1 fails, and the S1 link connection between the base station 2 and the remote core network EPC2 is normal, the S1 link connection is established between the base station 2 and the local core network 4. The first group of public land mobile networks PLMN GROUP1 enters the IOPS fault weakening mode; the base station 2 broadcasts IOPS PLMN in a cell configured with the PLMN belonging to the first group of public land mobile networks PLMN GROUP1 and the base station 2 configures its own office. The PLMN2 of the second group of public land mobile networks PLMN and GROUP2 broadcasts PLMN2; the mobile station 1 belonging to the first group of public land mobile network PLMN and GROUP1 connects to the local core network 4 to obtain normal public safety services, and the The second group of public land mobile networks, PLMN, GROUP2, services are normal.

When the S1 link connection between the base station 2 and the remote core networks EPC1 and EPC2 fails, the base station 2 establishes an S1 link connection with the local core network 4, and the first group of public land mobile networks PLMN and GROUP1 enter the IOPS fault and weaken. Mode, the second group of public land mobile networks PLMN and GROUP2 enter the IOPS fault weakening mode; the base station 2 broadcasts IOPS and PLMN in a cell configured with the PLMN belonging to the first group of public land mobile networks PLMN and GROUP1, and configures the own station The second group of public land mobile networks PLMN and GROUP2 of PLMN broadcast IOPS PLMN; mobile station 1 belonging to the first group of public land mobile networks PLMN and GROUP1 is connected to the local core network 4 to obtain normal public safety services. The mobile station 1 of the second set of public land mobile networks PLMN and GROUP 2 is connected to the local core network 4 to obtain normal public safety services.

Please refer to FIG. 4, which is a schematic structural diagram of a second embodiment of a cluster communication fault weakening system of the present invention entering a fault weakening mode. This embodiment is network sharing under MOCN in S1-Flex. The cluster communication failure weakening system is composed of base station 2, local core network 4, remote core network 3 (including remote core network EPC1, remote core network EPC2, and remote core. Network EPC 3) and two mobile stations 1. The base station 2 is shared by two sets of public land mobile networks PLMN, GROUP1 and PLMN2. The first set of public land mobile networks PLMN, GROUP1 includes the public land mobile network PLMN1 and the public land mobile network PLMN2, and the second group of public land mobile networks PLMN, GROUP2 includes The public land mobile network PLMN3, the remote core network corresponding to the public land mobile network PLMN1 is EPC1, the remote core network corresponding to the public land mobile network PLMN2 is EPC2, and the remote core network corresponding to the public land mobile network PLMN3 is EPC3.

Specifically, the two sets of public land mobile networks PLMN, GROUP1 and PLMN, GROUP2 are provided by different operators (such as China Mobile and China Unicom), and each group of public land mobile networks is composed of public land mobile networks of the same operator. For example, the first group of public land mobile networks PLMN and GROUP1 are provided by mobile operators, and the second group of public land mobile network PLMN and GROUP2 are provided by Unicom operators.

Specifically, when the S1 link connections between the base station 2 and the remote core network EPC1, the remote core network EPC2, and the remote core network EPC3 are all normal, the base station 2 is configured with the first group of public land mobile networks PLMN and GROUP1. The PLMN cell broadcasts the public land mobile network PLMN1 and the public land mobile network PLMN2, and broadcasts the public land mobile network PLMN3 in the cell configured with the PLMN belonging to the second group of the public land mobile network PLMN GROUP2.

When the S1 link between base station 2 and remote core network EPC1 fails, and the S1 link connection between base station 2 and remote core network EPC2 and remote core network EPC3 is normal, base station 2 is configured with the first A public land mobile network PLMN2 is broadcasted in a cell of a group of public land mobile networks PLMN PLG1 and GROUP1, and a public land mobile network PLMN3 is broadcasted in a cell configured with the PLMN belonging to the second group of public land mobile networks PLMN GROUP2; The mobile stations 1 of a group of public land mobile networks PLMN and GROUP1 are all connected to the remote core network EPC2 to obtain normal public safety services, while the services of the second group of public land mobile networks PLMN and GROUP 2 are normal.

When the S1 link connection between the base station 2 and the remote core network EPC1 and the remote core network EPC2 fails, and the S1 link connection with the remote core network EPC3 is normal, S1 is established between the base station 2 and the local core network 4. Link connection, the first group of public land mobile network PLMN, GROUP 1 enters the failure weakening mode, and base station 2 broadcasts IOPS PLMN in a cell configured with the PLMN belonging to the first group of public land mobile network PLMN, GROUP1, and configures The public land mobile network PLMN3 is broadcast in the cell of the PLMN of the second group of public land mobile networks PLMN and GROUP2; the mobile stations 1 of the first group of public land mobile network PLMN and GROUP1 are connected to the local core network 4 to obtain normal Public safety services, and the second group of public land mobile network PLMN and GROUP 2 services are normal.

When the S1 link connection between the base station 2 and the remote core network EPC1, the remote core network EPC2, and the remote core network EPC3 fails, an S1 link connection is established between the base station 2 and the local core network 4, the first group The public land mobile network PLMN GROUP1 enters the fault weakening mode, and the second group of public land mobile networks PLMN GROUP2 enters the fault weakening mode; the base station 2 broadcasts in the cell configured with the PLMN of the first group of public land mobile networks PLMN and GROUP1. IOPS PLMN broadcasts IOPS PLMN in a cell configured with the PLMN belonging to the second group of public land mobile networks PLMN and GROUP2; mobile station 1 belonging to the first group of public land mobile networks PLMN and GROUP1 is connected to the local core network 4 To obtain a normal public safety service, the mobile station 1 belonging to the second group of public land mobile networks PLMN and GROUP2 is connected to the local core network 4 to obtain a normal public safety service.

That is, only the remote core network EPC1 corresponding to the two public land mobile networks PLMN1 and PLMN2 included in the first group of public land mobile networks PLMN1 and GROUP1 are connected to the S1 link between the remote core network EPC2 and the base station 2. After a failure occurs, the first group of public land mobile networks PLMN and GROUP1 enter a failure weakening mode.

Please refer to FIG. 5, which is a schematic structural diagram of a third embodiment of a cluster communication fault weakening system of the present invention entering a fault weakening mode. This embodiment is a network sharing of MOCN and GWCN under S1-Flex. The cluster communication fault weakening system is composed of base station 2, local core network 4, remote core network 3 (including remote core network EPC 1, remote core network EPC). 2 and long-range core network EPC 3) and two mobile stations 1; base station 2 is shared by two sets of public land mobile networks PLMN GROUP1 and PLMN GROUP2, and the first group of public land mobile networks PLMN GROUP1 includes public land mobile network PLMN1 and public land Mobile network PLMN2, the second group of public land mobile networks PLMN, GROUP2 includes public land mobile network PLMN3 and public land mobile network PLMN4; public land mobile network PLMN1 and public land mobile network PLMN2 share a remote core network EPC1, public land mobile network PLMN2 and public The land mobile network PLMN3 shares the remote core network EPC2, and the public land mobile network PLMN4 corresponds to the remote core network EPC3.

When the S1 link connection between the base station 2 and the remote core network EPC1 fails, and the S1 link connection between the remote core network EPC2 and the remote core network EPC3 is normal, the base station 2 is configured to belong to the first group of public The public land mobile network PLMN2 is broadcast in a cell of the land mobile network PLMN GROUP1, and the public land mobile network PLMN3 and the public land mobile network PLMN4 are broadcast in a cell configured to belong to the second group of the public land mobile network PLMN GROUP2. The mobile stations 1 of the first group of public land mobile networks PLMN and GROUP1 are all connected to the remote core network EPC2 to obtain normal public safety services, and the second group of public land mobile networks PLMN and GROUP2 services are normal.

When the S1 link connection between the base station 2 and the remote core network EPC1 and the remote core network EPC2 fails, and the S1 link connection with the remote core network EPC3 is normal, S1 is established between the base station 2 and the local core network 4. Link connection, the first group of public land mobile network PLMN GROUP1 enters the fault weakening mode, base station 2 broadcasts IOPS PLMN in the cell configured with the PLMN of the own PLMN GROUP1, and broadcasts in the cell of the PLMN configured with the own PLMN GROUP2 Public land mobile network PLMN4; mobile station 1 belonging to the first group of public land mobile networks PLMN and GROUP 1 is connected to the local core network 4 to obtain normal public safety services, and belongs to the second group of public land mobile networks PLMN and GROUP 2 Mobile station 1 is connected to the remote core network EPC3 to obtain normal public safety services.

When the S1 link connection between the base station 2 and the remote core network EPC1, the remote core network EPC2, and the remote core network EPC3 fails, an S1 link connection is established between the base station 2 and the local core network 4. The first group of public land mobile networks PLMN, GROUP1 enters the fault weakening mode, the second group of public land mobile networks PLMN, GROUP2 enters the fault weakening mode; the base station 2 is configured with the first group of public land mobile networks PLMN, GROUP1 PLMN broadcasts IOPS PLMN in a cell configured with PLMN belonging to the second group of public land mobile network PLMNGROUP2 and broadcasts IOPS PLMN; mobile station 1 belonging to the first group of public land mobile network PLMN and GROUP1 is connected to The local core network 4 obtains normal public safety services, and the mobile station 1 belonging to the second group of public land mobile networks PLMN and GROUP2 is connected to the local core network 4 to obtain normal public safety services.

That is, the remote core network EPC1 shared by the public land mobile network PLMN1 and the public land mobile network PLMN2, and the remote core network EPC2 shared by the public land mobile network PLMN2 and the public land mobile network PLMN3, and the S1 link connection between the base station 2 occurs. After the failure, the first group of public land mobile networks PLMN GROUP1 enters the failure weakening mode, and because the S1 link connection between the remote core network EPC 3 and base station 2 is normal, the second group of public land mobile networks PLMN GROUP 2 Business is normal; when the remote core network EPC1 shared by the public land mobile network PLMN1 and the public land mobile network PLMN2, the remote core network EPC2 shared by the public land mobile network PLMN2 and the public land mobile network PLMN3 and the remote core corresponding to the public land mobile network PLMN4 After the S1 link connection between the network EPC3 and the base station 2 fails, both the first group of public land mobile networks PLMN and GROUP1 and the second group of public land mobile network PLMN and GROUP2 enter the failure weakening mode. One set of public land mobile network PLMN GROUP1 and the second set of public land mobile belonging to it Network PLMN GROUP2 mobile stations are connected to the core network 4 to obtain normal local public safety services.

Please refer to FIG. 6, which is a schematic structural diagram of a cluster communication fault weakening system of the present invention exiting the fault weakening mode. This embodiment uses MOCN network sharing under S1-Flex as an example for description. The cluster communication failure weakening system is composed of a base station 2, a local core network 4, and a remote core network 3 (including a remote core network EPC 1, a remote core network EPC 2 And remote core network EPC3) and two mobile stations 1, base station 2 is shared by two sets of public land mobile networks PLMN, GROUP1 and PLMN2, and the first group of public land mobile networks PLMN, GROUP1 includes public land mobile network PLMN1 And public land mobile network PLMN 2, the second group of public land mobile networks PLMN 2 includes public land mobile network PLMN 3, the remote core network corresponding to public land mobile network PLMN 1 is EPC1, and the remote corresponding to public land mobile network PLMN2 The core network is EPC2, and the remote core network corresponding to the public land mobile network PLMN3 is EPC3.

When the S1 link connection between the remote core network EPC1, the remote core network EPC2, the remote core network EPC3, and the base station 2 fails, an S1 link connection is established between the base station 2 and the local core network 4, the first group The public land mobile network PLMN, GROUP1 and the second group of public land mobile networks PLMN, GROUP2 enter the IOPS fault weakening mode; the base station 2 broadcasts IOPS PLMN in the cell configured with the PLMN that owns the PLMN GROUP1, and configures the own PLMN IOPS PLMN is broadcasted in the PLMN cell of GROUP 2; mobile stations 1 of the first group of public land mobile networks PLMN GROUP 1 and the second group of public land mobile networks PLMN GROUP 2 are connected to the local core network 4 to obtain normal Public safety business.

After the S1 link connection between the remote core network EPC1 and the base station 2 is restored (the S1 link connection between the remote core network EPC2 and the base station 2 may be restored, the principle is the same and will not be described again), the base station 2 When the S1 link connection between the remote core network EPC2 and the remote core network EPC3 is still faulty, the first group of public land mobile networks PLMN GROUP1 exits the IOPS fault weakening mode, and the second group of public land mobile networks PLMN GROUP 2 is still in the fault weakening mode; base station 2 broadcasts the public land mobile network PLMN 1 in a cell configured with the PLMN belonging to the first group of public land mobile networks PLMN and GROUP1, and is configured with the second group of public land Mobile network PLMN, GROUP 2 and PLMN broadcast IOPS PLMN; mobile station 1 belonging to the first set of public land mobile network PLMN GROUP 1 is connected to the remote core network EPC 1 to obtain normal public safety services, and the Mobile station 1 of the two public land mobile networks PLMN and GROUP 2 is still connected to the local core network EPC to obtain normal public safety services.

When the S1 link connection between the base station 2 and the remote core network EPC 1 and the remote core network EPC 2 are restored, and when the S1 link connection between the base station 2 and the remote core network EPC 3 is still in failure, the first group of public The land mobile network PLMN GROUP1 exits the IOPS fault weakening mode, and the second group of public land mobile networks PLMN GROUP2 is still in the fault weakening mode; the base station 2 broadcasts the public land mobile network PLMN1 and the public land in a cell configured with its own PLMN GROUP1 PLMN Mobile network PLMN2 broadcasts IOPS PLMN in a cell configured with the PLMN belonging to the second group of public land mobile networks PLMN and GROUP2; mobile station 1 belonging to the first group of public land mobile networks PLMN and GROUP1 is connected to a remote core network EPC1 and EPC2 obtain normal public safety services, while mobile station 1 belonging to the second group of public land mobile network PLMN and GROUP2 is still connected to the local core network EPC to obtain normal public safety services.

After the S1 link connections between the base station 2 and the remote core network EPC1, the remote core network EPC2, and the remote core network EPC3 are restored, the first public land mobile network PLMN GROUP1 exits the IOPS fault weakening mode, and the second Group public land mobile network PLMN GROUP2 exits the IOPS fault weakening mode; base station 2 broadcasts public land mobile network PLMN1 and public land mobile network PLMN2 in the cell of the PLMN configured with its own PLMN GROUP1 and configures the second The public land mobile network PLMN3 is broadcast in a cell of the group PLMN of the public land mobile network PLMN GROUP2; the mobile station 1 belonging to the first group of public land mobile network PLMN GROUP1 is connected to the remote core networks EPC1 and EPC2 to obtain normal public safety Services, and the mobile station 1 belonging to the second group of public land mobile networks PLMN and GROUP2 is connected to the remote core network EPC3 to obtain normal public safety services.

That is, at least one of the remote core network EPC1 and the remote core network EPC2 corresponding to the first group of public land mobile networks PLMN GROUP1 and the link connection failure between the remote core network and the base station 2 recovers to normal, and the first group The public land mobile network PLMN GROUP1 exits the IOPS fault weakening mode, while the second group of public land mobile networks PLMN GROUP2 is still in the IOPS fault weakening mode; when the remote core network EPC 3 and the S1 link connection between the base station 2 fail When it is restored, the second group of public land mobile networks PLMN, GROUP 2 also exits the IOPS fault weakening mode. At this time, the base station 2 releases the S1 link connection with the local core network 4, that is, at this time, the base station 2 disconnects from the local core. The connection between the nets 4.

Network sharing in the case of MOCN (that is, PLMN1GROUP1 includes PLMN1; PLMN and GROUP2 include PLMN2) and network sharing of MOCN and GWCN under S1-Flex (that is, PLMN1GROUP1 includes PLMN1 and PLMN2; PLMN and GROUP2 include PLMN3 and PLMN4; PLMN1 and PLMN2 share the remote core network EPC1, PLMN2 and PLMN3 share the remote core network EPC2, and PLMN4 corresponds to the remote core network EPC3) The way to exit the fault weakening mode is the same as the way to exit the fault mode shared by the MOCN network under S1-Flex The same is not repeated here.

Please refer to FIG. 7, which is a schematic flowchart of a method for weakening a cluster communication fault according to the present invention. The method includes:

Step S1: Set up at least two sets of public land mobile networks in the base station 2.

Step S2: The remote core network corresponding to one of the at least two sets of public land mobile networks has a connection failure with the base station 2, and the group of public land mobile networks enters a fault weakening mode.

Step S3: The base station 2 is connected to the local core network 4 to provide services to the mobile stations 1 connected to the group of public land mobile networks.

Step S4: When the remote core network 3 corresponding to a public land mobile network in the group of public land mobile networks restores the connection with the base station 2, the group of public land mobile networks exits the failure weakening mode.

Step S5: When the remote core network 3 corresponding to the at least two sets of public land mobile networks both resumes the connection with the base station 2, the at least two sets of public land mobile networks exit the failure weakening mode, and the base station 2 is disconnected Open a connection with the local core network 4.

Here, the MOCN network sharing under S1-Flex is taken as an example for detailed description. The cluster communication failure weakening system includes a base station 2, a local core network 4, a mobile station 1, and a remote core network 3 (including a remote core network EPC1, a remote core network EPC2, and a remote core network EPC3). The base station 2 is configured with two sets of public land mobile networks PLMN, GROUP1 and PLMN2. The first set of public land mobile networks PLMN, GROUP1 includes the public land mobile network PLMN1 and public land mobile network PLMN2, and the second group of public land mobile networks PLMN, GROUP2 includes The public land mobile network PLMN3, the remote core network corresponding to the public land mobile network PLMN1 is EPC1, the remote core network corresponding to the public land mobile network PLMN2 is EPC2, and the remote core network corresponding to the public land mobile network PLMN3 is EPC3.

Specifically, the two sets of public land mobile networks PLMN, GROUP1 and PLMN, GROUP2 are provided by different operators, and each group of public land mobile networks is composed of public land mobile networks of the same operator.

Step 1: The S1 link connection between the base station 2 and the remote core network EPC1, EPC2, and EPC3 is normal.

Step 2: The base station 2 broadcasts the PLMN configured by the cell in the cell to which it belongs.

Specifically, the base station 2 broadcasts the public land mobile network PLMN1 and the public land mobile network PLMN2 in the cells of the PLMN of the first group of public land mobile networks PLMN and GROUP1 and belongs to the second group of public land mobile networks. PLMN GROUP 2 broadcasts the public land mobile network PLMN 3 in the PLMN cell.

Step 3: The S1 link connection between the base station 2 and the remote core network EPC 1 is faulty.

Step 4: The S1 link connection between the base station 2 and the remote core network EPC 2 is faulty.

Step 5: The base station 2 establishes an S1 link connection with the local core network 4.

Step 6: The first group of public land mobile networks PLMN GROUP1 enters the IOPS fault weakening mode, and the base station 2 broadcasts IOPS PLMN in a cell configured with the PLMN of the first group of public land mobile networks PLMN GROUP1. The second group of public land mobile networks, PLMN and GROUP 2 broadcast normally.

Specifically, the S1 link connection between the base station 2 and the remote core network EPC 1 and EPC 2 fails, the S1 link connection with the remote core network EPC 3 is normal, and the S1 is established between the base station 2 and the local core network 4. Link connection, the first group of public land mobile networks PLMN, GROUP 1 enters the IOPS fault weakening mode, the base station 2 broadcasts IOPS PLMN in a cell configured with the PLMN of the own PLMN GROUP 1, and the second group of public land mobile networks PLMN GROUP 2 business is normal.

Step 7: The mobile station 1 of the own PLMN GROUP 1 is connected to the local core network 4 to obtain the local public safety service.

Step 8: The S1 link connection between the base station 2 and the remote core network EPC 3 is faulty.

Step 9: The base station 2 broadcasts IOPS PLMN in a cell configured with the PLMN belonging to the second group of the public land mobile network PLMN and GROUP2, and the second group of the public land mobile network PLMN and GROUP2 enters a failure weakening mode.

Step 10: The mobile station 1 belonging to the second group of public land mobile networks PLMN, GROUP 2 is connected to the local core network 4 to obtain local public safety services.

Specifically, at this time, the S1 link connections between the base station 2 and the remote core network EPC1, EPC2, and EPC3 all fail. The first group of public land mobile networks PLMN, GROUP1, and the second group of public land The mobile network PLMN and GROUP 2 all enter the fault weakening mode, and the base station 2 broadcasts IOPS PLMN in the cells of the first group of public land mobile networks PLMN and GROUP 2 and the PLMN of the second group of public land mobile networks PLMN and GROUP 2.

Step 11: The S1 link connection between the base station 2 and the remote core network EPC 1 is restored to normal.

Step 12: The base station 2 broadcasts PLMN1 in a cell configured with the PLMN belonging to the first group of public land mobile networks PLMN and GROUP1, the first group of public land mobile networks PLMN and GROUP1 exit the failure weakening mode, and the second group Public land mobile network PLMN GROUP2 is still in IOPS failure weakening mode.

Step 13: The mobile station 1 of the owning PLMN GROUP1 connects to the remote core network EPC1 to obtain normal public safety services, and disconnects from the local core network 4.

Specifically, when the public land mobile network PLMN1 belonging to the first group of public land mobile networks PLMN1GROUP1 can provide normal public safety services, the base station 2 broadcasts in the cell of the first group of public land mobile networks PLMN1GROUP1. The PLMN1 and all mobile stations 1 under the first group of public land mobile network PLMN and GROUP1 are connected to the remote core network EPC1 to obtain normal public safety services, and disconnected from the local core network 4.

Step 14: The S1 link connection between the base station 2 and the remote core network EPC3 returns to normal.

Step 15: The base station 2 broadcasts PLMN3 in a cell configured with the PLMN belonging to the second group of public land mobile networks PLMN and GROUP2, and the second group of public land mobile network PLMN and GROUP2 exits the failure weakening mode.

Step 16: Mobile station 1 of the second group of public land mobile network PLMN and GROUP2 connected to the remote core network EPC3 to obtain normal public safety services and disconnect from the local core network 4.

Specifically, when the public land mobile network PLMN3 of the second group of public land mobile networks PLMN and GROUP2 can provide normal public safety services, the second group of public land mobile networks PLMN and GROUP2 exit the failure weakening mode, and the base station 2 Broadcast the PLMN 3 in the cell of the PLMN belonging to the second group of public land mobile network PLMN GROUP2.

Step 17: The base station 2 disconnects the S1 link connection with the local core network 4.

Specifically, when a public land mobile network PLMN belonging to the first group of public land mobile networks PLMN and GROUP 1 can provide normal public safety services, and a public land mobile belonging to the second group of public land mobile networks PLMN and GROUP 2 When the network PLMN3 can provide normal public safety services, the base station 2 releases the S1 link connection with the local core network 4.

That is, when the S1 link connection between the remote core network EPC1 or EPC2 and the base station 2 recovers, the first group of public land mobile networks PLMN GROUP1 exits the IOPS fault weakening mode, and the second group of public The land mobile network PLMN GROUP 2 is still in IOPS fault weakening mode; when the S1 link connection failure between the remote core network EPC 3 and base station 2 is also restored, the second group of public land mobile network PLMN GROUP 2 exits IOPS fault weakening Mode, at this time, the base station 2 releases the S1 link connection with the local core network 4, that is, at this time, the base station 2 disconnects the S1 link with the local core network 4.

Please refer to FIG. 8, which is a schematic structural diagram of a network node according to the present invention. The network node 11 includes a communication component 111 for communicating with other communication devices; a memory 112 for storing a program; a processor 113 coupled to the memory 112 and executing the program stored in the memory 112 to execute The above method.

The system and method for weakening trunking communication faults of the present invention include a base station 2 configured with at least two sets of public land mobile networks; a remote core network 3 corresponding to the at least two sets of public land mobile networks; When the S1 link connections of the base stations fail, the group of public land mobile networks enters the fault weakening mode; the local core network 4, when the group of public land mobile networks enters the fault weakening mode, the base station 2 establishes with the local core network 4 The S1 link is connected to provide services for the mobile station 1 belonging to the group of public land mobile networks, and the method of weakening the cluster communication failure based on the above system is used to reduce the impact of network physical link or equipment failure on communication.

The above description is only an embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied to other related technologies The same applies to the fields of patent protection of the present invention.

Claims

A cluster communication failure weakening system, wherein the system includes:

A base station configured with at least two sets of public land mobile networks;

A remote core network corresponding to each of the at least two sets of public land mobile networks. When the connection between the remote core network corresponding to a set of public land mobile networks and the base station fails, the group of public land mobile networks enters a failure weakening mode, and the rest of the public The remote core network corresponding to the land mobile network works normally;

A local core network, when the group of public land mobile networks enters a failure weakening mode, the base station is connected to the local core network to provide services to mobile stations connected to the group of public land mobile networks.
The system for weakening trunking communication failure according to claim 1, wherein when the remote core network corresponding to a public land mobile network in the group of public land mobile networks resumes connection with the base station, the group of public land mobile networks Exit the fault weakening mode, and all mobile stations belonging to the group of public land mobile networks are connected to the remote core network to obtain normal public safety services.
The system for weakening a trunking communication fault according to claim 1, wherein when the remote core networks corresponding to the at least two sets of public land mobile networks are restored to the base station, the at least two sets of public land mobile networks are both The failure weakening mode is exited, and mobile stations belonging to at least two sets of public land mobile networks are connected to the corresponding remote core network to obtain normal public safety services, and the base station is disconnected from the local core network.
The system of claim 1, wherein each group of public land mobile networks is composed of a public land mobile network of the same operator.
The system of claim 1, wherein the at least two groups of public land mobile networks are provided by different operators, and the number of groups of the public land mobile network is the same as the number of operators.
A method for weakening a cluster communication fault, wherein the method includes:

Setting up at least two sets of public land mobile networks in the base station;

When the connection between the remote core network corresponding to one of the at least two sets of public land mobile networks and the base station fails, the base station is connected to the local core network, and the remote core networks corresponding to other public land mobile networks work normally, and

The group of public land mobile networks enters a failure weakening mode, and mobile stations belonging to the group of public land mobile networks are connected to the local core network to obtain normal public safety services.
The method for weakening a cluster communication fault according to claim 6, wherein the method further comprises:

When the remote core network corresponding to a public land mobile network in the group of public land mobile networks resumes connection with the base station, the group of public land mobile networks exits the failure weakening mode, and all mobile stations belonging to the group of public land mobile networks Connect to the remote core network to obtain normal public safety services.
The method for weakening a cluster communication fault according to claim 6, wherein the method further comprises:

When the remote core networks corresponding to the at least two sets of public land mobile networks are restored to the base station, the at least two sets of public land mobile networks exit the failure weakening mode, and the base station is disconnected from the local core. Network connection.
The method for weakening trunking communication failure according to claim 6, wherein each group of public land mobile networks is composed of a public land mobile network of the same operator.
The method for weakening a trunking communication fault according to claim 6, wherein the at least two sets of public land mobile networks are provided by different operators, and the number of groups of the public land mobile network is the same as the number of operators.
A network node, wherein the network node includes:

A communication component for communicating with other communication equipment;

Memory for storing programs; and

A processor coupled to the memory executes a method for weakening a cluster communication fault when running a program stored in the memory, the method including:

Setting up at least two sets of public land mobile networks in the base station;

When the connection between the remote core network corresponding to one of the at least two sets of public land mobile networks and the base station fails, the base station is connected to the local core network, and the remote core networks corresponding to other public land mobile networks work normally, and

The group of public land mobile networks enters a failure weakening mode, and mobile stations belonging to the group of public land mobile networks are connected to the local core network to obtain normal public safety services.
The network node according to claim 11, wherein the method further comprises:

When the remote core network corresponding to a public land mobile network in the group of public land mobile networks resumes connection with the base station, the group of public land mobile networks exits the failure weakening mode, and all mobile stations belonging to the group of public land mobile networks Connect to the remote core network to obtain normal public safety services.
The network node according to claim 11, wherein the method further comprises:

When the remote core networks corresponding to the at least two sets of public land mobile networks are restored to the base station, the at least two sets of public land mobile networks exit the failure weakening mode, and the base station is disconnected from the local core. Network connection.
The network node according to claim 11, wherein each group of public land mobile networks is composed of a public land mobile network of the same operator.
The network node according to claim 11, wherein the at least two sets of public land mobile networks are provided by different operators, and the number of groups of the public land mobile networks is the same as the number of operators.