CN115052308B - Fault weakening processing method, base station, trunking terminal and communication system - Google Patents
Fault weakening processing method, base station, trunking terminal and communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The application provides a fault attenuation processing method, a base station, a cluster terminal and a communication system, wherein the method is applied to the base station, the base station is used for communicating with a core network, the core network comprises a main core network and a standby core network, and the method comprises the following steps: if the communication link between the active core network and the active core network is detected to be interrupted and the communication link between the active core network and the active core network is normal, determining to enter a failure attenuation mode; in a failure weakening mode, a first notification message is sent to a cluster terminal, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in a base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module and processing the service request, and the method can also enter a failure attenuation mode when a link between the base station and the main core network is interrupted, so that the problem that cluster service cannot be carried out in the scene is solved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a failure weakening processing method, a base station, a trunking terminal, and a communications system.
Background
Currently, failure attenuation is defined in the B-trunk c (Broadband Trunking Communication, broadband trunked communication) standard: when communication between a wireless access subsystem and a network subsystem of the system is interrupted or the network subsystem fails, the base station can enter a failure weakening mode, wherein the failure weakening mode means that the base station can process service requests of users in the coverage area of the base station and support the cluster terminal to realize services such as single call, group call, full-cast call and the like. The different-place disaster-tolerant networking means that a set of broadband cluster core network is constructed in different regions, and the function of taking over immediately after a disaster is achieved.
In the networking scenario of disaster recovery and failure attenuation in different places, the network comprises a main core network and a standby core network, and according to the definition of failure attenuation, the base station enters a failure attenuation mode only when the links of the base station and the connected main core network and standby core network are interrupted. Therefore, in the networking scenario of disaster recovery and failure attenuation in different places, when the link between the base station and the main core network is interrupted but the link between the base station and the standby core network is normal, the terminal is connected to the standby core network, but the standby core network does not work, so that the terminal cannot perform trunking service in the scenario.
Disclosure of Invention
The application provides a fault attenuation processing method, a base station, a trunking terminal and a communication system, which are used for solving the problem that trunking service cannot be carried out when a link between the base station and a main core network is interrupted.
In a first aspect, the present application provides a method for handling failure attenuation, applied to a base station, where the base station is configured to communicate with a core network, where the core network includes a main core network and a standby core network, and the method includes:
if the communication link between the active core network and the active core network is detected to be interrupted and the communication link between the active core network and the active core network is normal, determining to enter a failure attenuation mode;
in a failure weakening mode, a first notification message is sent to a cluster terminal, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in a base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module, and processing the service request.
Optionally, the method further comprises:
if the communication link between the main core network and the main core network is detected to be normal, determining to exit the failure weakening mode;
and when exiting the failure attenuation mode, closing a local core network module in the base station, and sending a second notification message to the cluster terminal, wherein the second notification message is used for indicating the cluster terminal to access the main core network so as to enable the main core network to process the service request of the cluster terminal.
Optionally, if the interruption of the communication link with the primary core network is detected and the communication link with the standby core network is normal, determining to enter the failure attenuation mode includes:
receiving a master-slave notification message sent by a core network;
if the received primary and standby notification messages contain the first identifier, determining the core network which transmits the primary and standby notification messages containing the first identifier as a primary core network; if the received primary and standby notification messages contain the second identifier, determining the core network which transmits the primary and standby notification messages containing the second identifier as a standby core network;
if the S1 message sent by the main core network is not received within the preset time and the S1 message sent by the standby core network is received, determining that a communication link between the standby core network and the main core network is interrupted and the communication link between the standby core network and the main core network is normal;
and when the communication link between the active core network and the standby core network is detected to be interrupted and normal, entering a failure weakening mode.
Optionally, the primary and standby notification messages are determined according to heartbeat information between the primary core network and the standby core network; and when the heartbeat information between the main core network and the standby core network is abnormal, the standby core network is switched to the main core network.
Optionally, after the standby core network is switched with the main core network, the cluster terminal processed by the main core network after switching is the same as the cluster terminal processed by the main core network before switching.
In a second aspect, the present application provides a method for handling failure attenuation, applied to a trunking terminal, where the trunking terminal is configured to communicate with a core network, and a base station is configured to communicate with the core network, where the core network includes a main core network and a standby core network, and the method includes:
receiving a first notification message sent by a base station, wherein the first notification message is used for indicating the trunking terminal to access a local core network module inside the base station, and the first notification message is sent by the base station in a failure attenuation mode, and when the base station detects that a communication link between the base station and the main core network is interrupted and the communication link between the base station and the standby core network is normal, the base station enters the failure attenuation mode;
and sending a service request to the base station so that a local core network module in the base station processes the service request.
Optionally, the method further comprises:
receiving a second notification message sent by a base station, where the second notification message is used to instruct the trunking terminal to access the main core network, where the second notification message is sent by the base station in a failure attenuation mode, and when it is detected that a communication link between the base station and the main core network is recovered to be normal, the base station exits the failure attenuation mode and closes a local core network module inside the base station;
And sending a service request to the main core network so that the main core network processes the service request.
In a third aspect, the present application provides a base station, where the base station is configured to communicate with a core network, where the core network includes a main core network and a standby core network, and the base station includes:
the detection module is used for determining to enter a failure attenuation mode when the communication link between the detection module and the main core network is interrupted and the communication link between the detection module and the standby core network is normal;
the first sending module is used for sending a first notification message to the cluster terminal in a fault attenuation mode, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in the base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module, and processing the service request.
In a fourth aspect, the present application provides a trunking terminal, where the trunking terminal is configured to communicate with a core network, and a base station is configured to communicate with the core network, where the core network includes a main core network and a standby core network, and the trunking terminal includes:
a receiving module, configured to receive a first notification message sent by a base station, where the first notification message is used to instruct the trunking terminal to access a local core network module inside the base station, where the first notification message is sent by the base station in a failure attenuation mode, and when the base station detects that a communication link between the base station and the main core network is interrupted and a communication link between the base station and the standby core network is normal, the base station enters the failure attenuation mode;
And the second sending module is used for sending a service request to the base station so that the local core network module in the base station can process the service request.
In a fifth aspect, the present application provides a base station, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the method of any one of the first aspects.
In a sixth aspect, the present application provides a trunking terminal, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the method of any of the second aspects.
In a seventh aspect, the present application provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the method according to any one of the first and second aspects.
In an eighth aspect, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements the method according to any one of the first and second aspects.
In a ninth aspect, the present application provides a communication system, the communication system comprising: the base station according to the fifth aspect, the trunking terminal according to the sixth aspect, and the primary core network and the standby core network.
The application provides a fault attenuation processing method, a base station, a cluster terminal and a communication system, wherein if a communication link between the cluster terminal and a main core network is detected to be interrupted and the communication link between the cluster terminal and a standby core network is normal, the fault attenuation mode is determined to be entered; in a failure weakening mode, a first notification message is sent to a cluster terminal, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in a base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module and processing the service request, and the method can realize that when the link between the base station and the main core network is interrupted but the link between the base station and the standby core network is normal, the fault weakening mode is also entered, and the problem that cluster service cannot be carried out when the link between the base station and the main core network is interrupted can be solved.
Drawings
For a clearer description of the technical solutions of the present application or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the present application, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a disaster recovery networking scenario in the prior art;
FIG. 2 is a schematic diagram of a failure attenuation scenario under a monocotyledonous network in the prior art;
FIG. 3 is a schematic diagram of a networking scenario of off-site disaster recovery and failure attenuation in the prior art;
fig. 4 is a schematic flow chart of a fault attenuation processing method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a networking scenario entering a failure attenuation mode of disaster recovery and failure attenuation in different places according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a networking scenario exiting a failure attenuation mode of disaster recovery and failure attenuation in different places according to an embodiment of the present invention;
FIG. 7 is a flow chart of another method for handling failover according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a trunking terminal according to an embodiment of the present invention;
fig. 10 is a schematic hardware structure of a base station according to an embodiment of the present invention;
fig. 11 is a schematic hardware structure diagram of a trunking terminal according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic diagram of a disaster recovery networking scenario in the prior art, as shown in fig. 1, where one of the broadband cluster core network TCN1 (Trunking Core Network) and the broadband cluster core network TCN2 is used as a main core network, and the other is used as a standby core network. The main core network and the standby core network are existence states of the core network, and in some scenes, the main core network can be switched to the standby core network, and the standby core network can be switched to the main core network. Under normal conditions, the main core network is used for processing service requests of the cluster terminals. In addition, the base station T-eNB makes an S1-T connection with TCN1 and TCN 2. The broadband cluster core network comprises a subscription data management authentication center eHSS, a data gateway xGW, a cluster control function entity TCF, a cluster media function entity TMF, a mobile management entity eMME and other devices; the eHSS comprises a subscription data management HSS and a cluster subscription data management THSS; the xGW includes a serving gateway SGW and a PDN gateway PGW.
Fig. 2 is a schematic diagram of a failure attenuation scenario under a single network in the prior art, where the scenario includes a network management platform, a trunking core network, a base station 1 and a base station 2, where the base station 1 and the base station 2 respectively include a plurality of trunking terminals, the base station 1 and the base station 2 respectively communicate with the trunking core network, and the gateway platform is used to manage the trunking core network. When the S1 link between the base station 1 and the trunking core network is normally connected, the trunking terminal can access the trunking core network to normally perform trunking service, and when the S1 link between the base station 1 and the trunking core network is interrupted, the base station can enter a failure attenuation mode and instruct the trunking terminal to re-access a failure single station to perform trunking service. The fault single station refers to the name when the base station is disconnected from the core network and the base station is in an isolated state.
Fig. 3 is a schematic diagram of a networking scenario of disaster recovery and failure attenuation in the prior art, as shown in fig. 3, in the networking scenario of disaster recovery and failure attenuation in the different places, because the B-trunk standard only defines implementation of failure attenuation in the single-network scenario, failure attenuation is not separately defined for the networking scenario of disaster recovery and failure attenuation in the different places, so that when all S1 links of the base station are interrupted, a failure attenuation mode can be entered, that is, when S1 links between the base station and the main core network are interrupted, and S1 links between the base station and the standby core network are also interrupted, a failure attenuation mode is entered.
However, when the S1 link between the base station and the main core network is interrupted and the S1 link between the standby core network is normal, the trunking terminal will access to the standby core network, but the standby core network does not work, the trunking terminal will fail to register, and the trunking service cannot be performed on the standby core network. For example, in rail transit, the reliability requirement on the service processing of the trunking terminal is high, if the base station does not enter a failure attenuation mode and the standby core network is not in a working state, the trunking terminal cannot perform trunking service.
Based on the technical problems, the judging condition for entering fault attenuation is added to the base station, namely when an S1 link between the base station and the main core network is interrupted and an S1 link between the standby core network is normal, the base station enters a fault attenuation mode, and the cluster service of the cluster terminal is processed through a fault single station, so that the problem that the cluster service of the cluster terminal cannot be processed in the scene is solved.
Fig. 4 is a flow chart of a method for handling failure attenuation according to an embodiment of the present invention, as shown in fig. 4, where the method is applied to a base station, and the method includes:
s401, if the communication link between the active core network and the active core network is detected to be interrupted and the communication link between the active core network and the active core network is normal, determining to enter a failure attenuation mode.
In this embodiment, the base station is configured to communicate with a core network, where the core network includes a main core network and a standby core network.
The method comprises the steps that communication link interruption between main core networks is detected, wherein the communication link interruption comprises link interruption caused by port looseness between a base station and main core network equipment; or, the link is interrupted due to the loose network cable between the base station and the main core network equipment; or other link interruption due to human factors, etc.
Fig. 5 is a schematic diagram of a networking scenario entering a failure attenuation mode for disaster recovery and failure attenuation in different places according to an embodiment of the present invention. As shown in fig. 5, when a communication link between the main core network is detected to be broken and a communication link between the base station and the standby core network is normal, the base station enters a fail-safe mode.
If the failure weakening mode is not entered, the base station accesses the trunking terminal originally accessed to the main core network to the standby core network because the link between the base station and the standby core network is normal, but the standby core network is in a standby state and does not process the service request of the trunking terminal, so that the service request of the trunking terminal is not responded in the scene.
When the failure weakening mode is entered under the scene, the service request of the cluster terminal can be processed.
S402, in a failure attenuation mode, a first notification message is sent to a cluster terminal, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in a base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module, and processing the service request.
Specifically, in the failure attenuation mode, the base station may send a first notification message to the trunking terminal, and when the trunking terminal receives the first notification message, the trunking terminal senses that the base station is in the failure attenuation mode, and then the trunking terminal will send an access request to the base station again, and the base station will access the trunking terminal to a local core network module inside the base station at this time.
The local core network module is arranged inside the base station, the local core network is formed by an integrated EPC (Evolved Packet Core) module, and when the local core network is in a fault weakening mode, the integrated EPC module replaces the main core network to process service requests of the cluster terminal. The integrated EPC module is also used for replacing a main core network to process the registration request of the cluster terminal. The local core network can realize services including single call, group call, full broadcast call and the like.
According to the method for processing the failure attenuation, when the communication link between the active core network and the active core network is detected to be interrupted and the communication link between the active core network and the active core network is normal, the failure attenuation mode is determined to be entered; in a failure attenuation mode, a first notification message is sent to a cluster terminal, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in a base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module and processing the service request, by the method, when the link between the base station and the main core network is interrupted and the link between the standby core network is normal, the base station can enter a failure attenuation mode, and the local core network inside the base station is used for processing the service request of the cluster terminal, so that the cluster service of the cluster terminal can be processed under the scene.
In one embodiment, the method further comprises: if the communication link between the main core network and the main core network is detected to be normal, determining to exit the failure weakening mode; and when exiting the failure attenuation mode, closing a local core network module in the base station, and sending a second notification message to the cluster terminal, wherein the second notification message is used for indicating the cluster terminal to access the main core network so as to enable the main core network to process the service request of the cluster terminal.
Fig. 6 is a schematic diagram of a networking scenario exiting a failure attenuation mode of disaster recovery and failure attenuation in different places according to an embodiment of the present invention. In this embodiment, when the communication link between the primary core network and the base station is restored, the service request of the trunking terminal is processed through the primary core network. Specifically, when the base station detects that the link with the main core network is restored to normal, the base station exits the failure attenuation mode.
After exiting the failure attenuation mode, on one hand, the base station can close the internal local core network module, so that the local core network module is prevented from continuously processing the service request of the trunking terminal. On the other hand, the base station sends a second notification message to the trunking terminal, and when the trunking terminal receives the second notification message, the trunking terminal senses that the base station exits the failure attenuation mode, and at the moment, the trunking terminal is connected to the main core network, and the main core network processes a service request of the trunking terminal.
After the communication link between the base station and the main core network is recovered to be normal, the main core network processes the service request of the trunking terminal, so that the service request of the trunking terminal can be ensured to be normally carried out.
In one embodiment, if the communication link between the active core network and the active core network is detected to be broken and the communication link between the active core network and the active core network is normal, determining to enter a failure attenuation mode includes:
Receiving a master-slave notification message sent by a core network; if the received primary and standby notification messages contain the first identifier, determining the core network which transmits the primary and standby notification messages containing the first identifier as a primary core network; if the received primary and standby notification messages contain the second identifier, determining the core network which transmits the primary and standby notification messages containing the second identifier as a standby core network; if the S1 message sent by the main core network is not received within the preset time and the S1 message sent by the standby core network is received, determining that a communication link between the standby core network and the main core network is interrupted and the communication link between the standby core network and the main core network is normal; and when the communication link between the active core network and the standby core network is detected to be interrupted and normal, entering a failure weakening mode.
Specifically, when determining to enter the failure attenuation mode, it is necessary to determine the communication link state between the base station and the core network, and the active/standby state of the core network corresponding to the link state. The process adopts two mechanisms, namely a link detection mechanism and a main and standby notification mechanism.
Specifically, the primary and standby notification mechanism is that the primary core network and the standby core network send primary and standby notification messages to the base station at intervals of a first preset time, wherein the primary and standby notification messages sent to the base station by the primary core network and the standby core network respectively are messages containing different identifications, and the messages are respectively a first identification and a second identification. For example, the primary-backup notification message sent by the backup core network to the base station is 0, and the primary-backup notification message sent by the primary core network to the base station is not 0. When receiving the primary and secondary notification messages, the base station determines the primary and secondary states of the core network for sending the primary and secondary notification messages according to the identification information. For example, when the received primary and secondary notification message is 0, the core network that sent the primary and secondary notification message may be determined to be the secondary core network, and when the received primary and secondary notification message is not 0, the core network that sent the primary and secondary notification message may be determined to be the primary core network.
Specifically, the link detection mechanism is to receive an S1 message sent by the core network at intervals of a second preset time, and when the S1 message is not received, the link detection mechanism may indicate that the communication link is interrupted; when an S1 message is detected, it may be indicated that the communication link is normal. The base station and the core network perform signaling interaction through an S1 interface, wherein signaling information is expressed as an S1 message.
The interval of the first preset time of the main core network and the standby core network sending the main and standby notification messages is smaller than the interval of the second preset time of the S1 message received by the base station, so that the base station can be ensured to determine whether the core network is the main core network or the standby core network when judging whether the communication link with the core network is interrupted.
Finally, when the communication link between the active core network and the active core network is determined to be interrupted and the communication link between the active core network and the active core network is normal, the fault attenuation mode is determined to be entered. Then, in the networking scenario of disaster recovery and failure attenuation in different places, when the communication links between the base station and the main core network and the standby core network are all interrupted, or when the communication links between the base station and the main core network are interrupted and the communication links between the base station and the standby core network are normal, a failure attenuation mode is entered.
The base station can determine the state of the core network and whether the communication link between the base station and the core network is normal or not through a link detection mechanism and a main and standby notification mechanism.
In one embodiment, the primary and standby notification messages are determined according to heartbeat information between the primary core network and the standby core network; and when the heartbeat information between the main core network and the standby core network is abnormal, the standby core network is switched to the main core network.
In the present embodiment, the determination of the primary and secondary notification messages is determined based on heartbeat information. The standby core network monitors heartbeat information sent by the main core network, and determines whether the main core network is in an abnormal state according to a monitoring result. When the heartbeat information monitored by the standby core network is normal, the standby core network indicates that the main core network is in normal operation, and the core network is not switched. When the heartbeat information monitored by the standby core network is abnormal, the standby core network indicates that the main core network is abnormal, and the standby core network and the main core network are subjected to main-standby switching. When the equipment in the main core network fails, the heartbeat information is stopped from being sent to the standby core network, or the sent heartbeat information is in an abnormal state.
The heartbeat message between the main core network and the standby core network can be used for determining the state of the main core network, so as to determine whether to switch the state of the core network.
In one embodiment, after the standby core network is switched with the main core network, the cluster terminal processed by the main core network after the switching is the same as the cluster terminal processed by the main core network before the switching.
In this embodiment, when the standby core network is switched to the primary core network, the cluster terminal to which the service request processed by the standby core network belongs is the same as the cluster terminal to which the service request processed by the primary core network belongs. When the main core network is in an abnormal state, the standby core network can be switched to the main core network and replace the main core network to process the service request of the corresponding cluster terminal. The main core network being in an abnormal state refers to a situation that the main core network is in a power-off state or the main core network needs to be upgraded.
When the main core network is in an abnormal state, the standby core network is switched to the main core network to process the service request of the corresponding cluster terminal, so that the reliability of the communication system can be improved.
Fig. 7 is a flow chart of another method for handling failure attenuation according to an embodiment of the present invention, as shown in fig. 7, where the method is applied to a trunking terminal, the trunking terminal is used for communicating with a core network, and a base station is used for communicating with the core network, where the core network includes a main core network and a standby core network, and the method includes:
S701, receiving a first notification message sent by a base station, wherein the first notification message is used for indicating the trunking terminal to access a local core network module inside the base station, and the first notification message is sent by the base station in a failure attenuation mode, and when the base station detects that a communication link between the base station and the main core network is interrupted and the communication link between the base station and the standby core network is normal, the base station enters the failure attenuation mode;
s702, sending a service request to the base station, so that a local core network module in the base station processes the service request.
In this embodiment, when the base station detects that the communication link with the main core network is interrupted and the communication link with the standby core network is normal, the cluster terminal is notified to be in the failure attenuation mode currently by the first notification message. The trunking terminal will access to the local core network inside the base station to implement the processing of the service request through the local core network.
In addition, the execution method of the trunking terminal under the condition that the base station enters the failure attenuation in the embodiment corresponds to the processing procedure of the base station under the failure attenuation in the above embodiment, and the implementation principle and the technical effect are similar, and are not repeated here.
In one embodiment, the method further comprises:
receiving a second notification message sent by a base station, where the second notification message is used to instruct the trunking terminal to access the main core network, where the second notification message is sent by the base station in a failure attenuation mode, and when it is detected that a communication link between the base station and the main core network is recovered to be normal, the base station exits the failure attenuation mode and closes a local core network module inside the base station;
and sending a service request to the main core network so that the main core network processes the service request.
In this embodiment, when the communication link between the base station and the main core network is restored to be normal, the base station exits the failure attenuation mode and notifies the trunking terminal through the second notification message, and simultaneously closes the local core network module inside the base station, so that the base station re-accesses the main core network, and the service request of the trunking terminal is processed through the main core network.
In addition, the execution method of the trunking terminal under the exit failure attenuation in the embodiment corresponds to the processing procedure of the base station under the exit failure attenuation in the above embodiment, and its implementation principle and technical effects are similar, and are not repeated here.
Fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention, where, as shown in fig. 8, the base station is configured to communicate with a core network, and the core network includes a main core network and a standby core network, and the base station includes:
a detection module 801, configured to determine to enter a failure attenuation mode when a communication link with the primary core network is detected to be broken and a communication link with the standby core network is normal;
a first sending module 802, configured to send a first notification message to a trunking terminal in a failure attenuation mode, where the first notification message is used to instruct the trunking terminal to access a local core network module inside a base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module, and processing the service request.
Optionally, the detection module 801 is further configured to: when the communication link between the main core network and the main core network is detected to be normal, determining to exit the failure weakening mode;
the first sending module 802 is further configured to: and when exiting the failure attenuation mode, closing a local core network module in the base station, and sending a second notification message to the cluster terminal, wherein the second notification message is used for indicating the cluster terminal to access the main core network so as to enable the main core network to process the service request of the cluster terminal.
Optionally, when the detection module 801 detects that the communication link between the active core network and the active core network is interrupted and the communication link between the active core network and the active core network is normal, it determines to enter a failure attenuation mode, specifically configured to:
receiving a master-slave notification message sent by a core network;
if the received primary and standby notification messages contain the first identifier, determining the core network which transmits the primary and standby notification messages containing the first identifier as a primary core network; if the received primary and standby notification messages contain the second identifier, determining the core network which transmits the primary and standby notification messages containing the second identifier as a standby core network;
if the S1 message sent by the main core network is not received within the preset time and the S1 message sent by the standby core network is received, determining that a communication link between the standby core network and the main core network is interrupted and the communication link between the standby core network and the main core network is normal;
and when the communication link between the active core network and the standby core network is detected to be interrupted and normal, entering a failure weakening mode.
Optionally, the primary and standby notification messages are determined according to heartbeat information between the primary core network and the standby core network; when the heartbeat information between the main core network and the standby core network is normal, the standby core network is not switched to the main core network; and when the heartbeat information between the main core network and the standby core network is abnormal, the standby core network is switched to the main core network.
Optionally, after the standby core network is switched with the main core network, the cluster terminal processed by the main core network after switching is the same as the cluster terminal processed by the main core network before switching.
The base station provided by the embodiment of the present invention can implement the foregoing fault attenuation processing method in the embodiments shown in fig. 4, fig. 5 and fig. 6, and its implementation principle and technical effects are similar, and are not repeated here.
Fig. 9 is a schematic structural diagram of a trunking terminal according to an embodiment of the present invention, where, as shown in fig. 9, the trunking terminal is configured to communicate with a core network, and a base station is configured to communicate with the core network, where the core network includes a main core network and a standby core network, and the trunking terminal includes:
a receiving module 901, configured to receive a first notification message sent by a base station, where the first notification message is used to instruct the trunking terminal to access a local core network module inside the base station, where the first notification message is sent by the base station in a failure attenuation mode, and when the base station detects that a communication link between the base station and the main core network is interrupted and a communication link between the base station and the standby core network is normal, the base station enters the failure attenuation mode;
and the second sending module 902 is configured to send a service request to the base station, so that a local core network module inside the base station processes the service request.
Optionally, the receiving module 901 is further configured to receive a second notification message sent by a base station, where the second notification message is used to instruct the trunking terminal to access the primary core network, and the second notification message is sent by the base station in a failure attenuation mode, where when it is detected that a communication link with the primary core network returns to normal, the base station exits the failure attenuation mode, and closes a local core network module inside the base station;
the second sending module 902 is further configured to send a service request to the primary core network, so that the primary core network processes the service request.
The trunking terminal provided by the embodiment of the present invention can implement the foregoing fault attenuation processing method in the embodiment shown in fig. 7, and its implementation principle and technical effects are similar, and are not repeated here.
Fig. 10 is a schematic hardware structure of a base station according to an embodiment of the present invention. As shown in fig. 10, the base station 100 provided in this embodiment includes: at least one processor 1001 and memory 1002. The processor 1001 and the memory 1002 are connected by a bus 1003.
In a specific implementation, at least one processor 1001 executes computer-executable instructions stored in the memory 1002, so that the at least one processor 1001 performs the method for handling failure attenuation in the above method embodiment.
The specific implementation process of the processor 1001 may refer to the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein again.
Fig. 11 is a schematic hardware structure diagram of a trunking terminal according to an embodiment of the present invention. As shown in fig. 11, the cluster terminal 110 provided in this embodiment includes: at least one processor 1101 and a memory 1102. The processor 1101 and the memory 1102 are connected by a bus 1103.
In a specific implementation, at least one processor 1101 executes computer-executable instructions stored in the memory 1102, so that the at least one processor 1101 performs the method for handling failure attenuation in the above method embodiment.
The specific implementation process of the processor 701 can be referred to the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein again.
In the embodiments shown in fig. 10 and 11 described above, it should be understood that the processor may be a central processing unit (english: central Processing Unit, abbreviated as CPU), or may be other general purpose processors, digital signal processors (english: digital Signal Processor, abbreviated as DSP), application specific integrated circuits (english: application Specific Integrated Circuit, abbreviated as ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.
The memory may comprise high speed RAM memory or may further comprise non-volatile storage NVM, such as at least one disk memory.
The bus may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, the buses in the drawings of the present application are not limited to only one bus or one type of bus. The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores computer execution instructions, and when a processor executes the computer execution instructions, the method for processing the fault attenuation of the method embodiment is realized.
The computer readable storage medium described above may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. A readable storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. In the alternative, the readable storage medium may be integral to the processor. The processor and the readable storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuits, ASIC for short). The processor and the readable storage medium may reside as discrete components in a device.
An embodiment of the present application provides a computer program product, including a computer program, which when executed by a processor implements a method for handling failover as provided in any of the embodiments corresponding to fig. 4 to 7 of the present application.
Fig. 12 is a schematic structural diagram of a communication system according to an embodiment of the present invention. As shown in fig. 12, the communication system includes: the base station, the cluster terminal, and the primary core network and the standby core network described in the foregoing embodiments are described in the foregoing embodiments.
In the communication system, the base station communicates with the main core network and the standby core network. The technical solution of the fault attenuation processing method of any embodiment may be correspondingly executed, and its implementation principle and technical effects are similar, and will not be described herein again.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (14)
1. A method of handling failover, applied to a base station, the base station configured to communicate with a core network, the core network comprising a primary core network and a backup core network, the method comprising:
If the communication link between the active core network and the active core network is detected to be interrupted and the communication link between the active core network and the active core network is normal, determining to enter a failure attenuation mode;
in a failure weakening mode, a first notification message is sent to a cluster terminal, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in a base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module, and processing the service request.
2. The method according to claim 1, wherein the method further comprises:
if the communication link between the main core network and the main core network is detected to be normal, determining to exit the failure weakening mode;
and when exiting the failure attenuation mode, closing a local core network module in the base station, and sending a second notification message to the cluster terminal, wherein the second notification message is used for indicating the cluster terminal to access the main core network so as to enable the main core network to process the service request of the cluster terminal.
3. The method of claim 1, wherein determining to enter a fail-safe mode if a communication link with the primary core network is detected to be broken and a communication link with the standby core network is normal comprises:
Receiving a master-slave notification message sent by a core network;
if the received primary and standby notification messages contain the first identifier, determining the core network which transmits the primary and standby notification messages containing the first identifier as a primary core network; if the received primary and standby notification messages contain the second identifier, determining the core network which transmits the primary and standby notification messages containing the second identifier as a standby core network;
if the S1 message sent by the main core network is not received within the preset time and the S1 message sent by the standby core network is received, determining that a communication link between the standby core network and the main core network is interrupted and the communication link between the standby core network and the main core network is normal;
and when the communication link between the active core network and the standby core network is detected to be interrupted and normal, entering a failure weakening mode.
4. A method according to claim 3, wherein the primary and secondary notification messages are determined from heartbeat information between the primary core network and the secondary core network; and when the heartbeat information between the main core network and the standby core network is abnormal, the standby core network is switched to the main core network.
5. The method of claim 1, wherein after the standby core network is switched with the primary core network, the cluster terminals processed by the primary core network after the switching are the same as the cluster terminals processed by the primary core network before the switching.
6. A method for handling failure attenuation, applied to a trunking terminal, where the trunking terminal is configured to communicate with a core network, and a base station is configured to communicate with the core network, where the core network includes a main core network and a standby core network, the method includes:
receiving a first notification message sent by a base station, wherein the first notification message is used for indicating the trunking terminal to access a local core network module inside the base station, and the first notification message is sent by the base station in a failure attenuation mode, and when the base station detects that a communication link between the base station and the main core network is interrupted and the communication link between the base station and the standby core network is normal, the base station enters the failure attenuation mode;
and sending a service request to the base station so that a local core network module in the base station processes the service request.
7. The method of claim 6, wherein the method further comprises:
receiving a second notification message sent by a base station, where the second notification message is used to instruct the trunking terminal to access the main core network, where the second notification message is sent by the base station in a failure attenuation mode, and when it is detected that a communication link between the base station and the main core network is recovered to be normal, the base station exits the failure attenuation mode and closes a local core network module inside the base station;
And sending a service request to the main core network so that the main core network processes the service request.
8. A base station for communicating with a core network, the core network comprising a primary core network and a backup core network, the base station comprising:
the detection module is used for determining to enter a failure attenuation mode when the communication link between the detection module and the main core network is interrupted and the communication link between the detection module and the standby core network is normal;
the first sending module is used for sending a first notification message to the cluster terminal in a fault attenuation mode, wherein the first notification message is used for indicating the cluster terminal to access a local core network module in the base station; the local core network module is used for receiving the service request sent by the cluster terminal after the cluster terminal is accessed to the local core network module, and processing the service request.
9. A trunking terminal, wherein the trunking terminal is configured to communicate with a core network, and a base station is configured to communicate with the core network, the core network including a main core network and a standby core network, the trunking terminal comprising:
a receiving module, configured to receive a first notification message sent by a base station, where the first notification message is used to instruct the trunking terminal to access a local core network module inside the base station, where the first notification message is sent by the base station in a failure attenuation mode, and when the base station detects that a communication link between the base station and the main core network is interrupted and a communication link between the base station and the standby core network is normal, the base station enters the failure attenuation mode;
And the second sending module is used for sending a service request to the base station so that the local core network module in the base station can process the service request.
10. A base station, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the method of any one of claims 1 to 5.
11. A trunking terminal, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the method of claim 6 or 7.
12. A computer readable storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the method according to any of claims 1-7.
13. A computer program product comprising a computer program which, when executed by a processor, implements the method according to any one of claims 1-7.
14. A communication system, the communication system comprising: the base station of claim 10, the trunking terminal of claim 11, and the primary and backup core networks.
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