CN114697952B - Fault weakening processing method, device and communication system - Google Patents

Fault weakening processing method, device and communication system Download PDF

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Publication number
CN114697952B
CN114697952B CN202011600012.XA CN202011600012A CN114697952B CN 114697952 B CN114697952 B CN 114697952B CN 202011600012 A CN202011600012 A CN 202011600012A CN 114697952 B CN114697952 B CN 114697952B
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network
core
core network
system message
networks
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CN114697952A (en
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刘胜国
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Chengdu TD Tech Ltd
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Chengdu TD Tech Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application provides a fault attenuation processing method, equipment and a communication system, wherein the method comprises the following steps: and acquiring the network information of the operators to which the core networks belong, broadcasting a first system message to the terminal equipment belonging to each core network when the networks of the operators are the same and the first core network faults are detected, and broadcasting a second system message to the terminal equipment belonging to each core network when the networks of the operators are different. In the technical scheme, the terminal equipment under the failed core network is notified to enter the failure attenuation processing mode by broadcasting the first system message or the second system message to the terminal equipment, and the users under other core networks continue to perform normal service, so that the base station can also partially enter the failure attenuation processing mode aiming at the terminal equipment under the failed core network when part of the core networks fail, and the basic service of the users under the failed core networks is ensured.

Description

Fault weakening processing method, device and communication system
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a communications system for processing failure attenuation.
Background
In broadband trunking communication (LTE BTrunc, long Term Broadband Trunking Communication Evolution) based on long term evolution technology, if communication between a base station and a core network is interrupted or the core network fails, the base station enters a failure attenuation mode, and meanwhile, based on a radio access network sharing (RAN sharing, radio access network sharing) technology, one base station can be simultaneously connected to core networks of a plurality of different operator networks to perform services in a shared wireless manner.
In the prior art, a condition for determining that a base station enters a failure attenuation mode is that when the base station is disconnected from all core networks, the base station can enter the failure attenuation mode, and User Equipment (UE) under the base station can perform basic services, such as point call, under a failure attenuation scene.
However, in the prior art, since the base station is simultaneously connected with the core networks of a plurality of different operators, the base station can enter a fault handling mode only when all the core networks have faults, and when one of the core networks has faults, and other core networks normally operate, the base station can not enter a fault weakening mode, so that a user under the faulty core network cannot perform basic service.
Disclosure of Invention
The application provides a fault attenuation processing method, equipment and a communication system, which are used for solving the problem that when a core network of an existing base station fails, a fault attenuation mode cannot be entered, and a user under the core network cannot perform basic service.
In a first aspect, an embodiment of the present application provides a method for handling failure attenuation, which is applied to a wireless network access device, where the wireless network access device is connected with at least two core networks, and the method includes the following steps:
acquiring the network information of an operator to which the at least two core networks belong;
when the operator networks to which the at least two core networks belong are the same, and a first core network fault is detected, broadcasting a first system message to terminal equipment belonging to each core network, wherein the first system message comprises a user number segment for indicating the corresponding terminal equipment to perform fault attenuation treatment;
and when the operator networks to which the at least two core networks belong are different, and the first core network fault is detected, broadcasting a second system message to the terminal equipment belonging to each core network, wherein the second system message comprises an operator network identifier for indicating the corresponding terminal equipment to perform fault attenuation processing.
In one possible design of the first aspect, before the obtaining the operator network information to which the at least two core networks belong, the method further includes:
and sharing connection with the at least two core networks through a wireless access network.
In another possible design of the first aspect, when the operator networks to which the at least two core networks belong are the same, and when the first core network failure is detected, before broadcasting the first system message to the terminal device belonging to each core network, the method further includes:
broadcasting a third system message and a paging message to terminal equipment residing in a coverage area of a wireless access network, wherein the third system message comprises operator network information to which each core network belongs, and the paging message is used for paging each terminal equipment.
In yet another possible design of the first aspect, the broadcasting the third system message and the paging message to the terminal device residing in the coverage area of the radio access network, for accessing the terminal device to the core network, includes:
broadcasting a third system message and a paging message to each terminal device;
and receiving confirmation identification reported by each terminal device, and accessing a core network corresponding to the confirmation identification for each terminal device, wherein the confirmation identification comprises an operator network identification and/or mobile management node registration information of the core network.
In yet another possible design of the first aspect, the broadcasting, when the operator networks to which the at least two core networks belong are the same and a first core network failure is detected, a first system message to a terminal device belonging to each core network includes:
detecting a second core network when the operator information of the at least two core networks is different and a first core network fault is detected;
broadcasting a first system message to terminal devices belonging to each core network when the first core network and the second core network fail;
intercepting service requests among terminal devices belonging to different core networks, wherein the service requests comprise point calls and group calls.
In a second aspect, an embodiment of the present application provides a method for processing failure attenuation, which is applied to a terminal device, and the method includes the following steps:
acquiring a first system message or a second system message broadcasted by radio access network equipment;
and reading the first system information, determining to perform fault attenuation processing according to the current user number segment of the terminal equipment, or reading the second system information, and determining to perform fault attenuation processing according to the current operator network information of the terminal equipment, wherein the current user number segment is the identification of the terminal equipment, and the current operator network information is the operator network to which the core network to which the terminal equipment is currently connected belongs.
In one possible design of the second aspect, the reading the first system message and determining to perform the fail-safe processing according to the current user number segment includes:
acquiring a user number segment of the first system message, and comparing the user number segment with a current user number segment;
if the user number segment is the same as the current user number segment, performing fault attenuation treatment;
if the user number segment is different from the current user number segment, failure weakening processing is not performed.
In another possible design of the second aspect, the reading the second system message, determining to perform the fault attenuation processing according to the current operator network information of the terminal device, includes:
acquiring an operator network identifier of the second system message, and comparing the operator network identifier with current operator network information;
if the operator network identification is the same as the current operator network information, performing fault attenuation processing;
and if the operator network identifier is the same as the current operator network information, not performing fault attenuation processing.
In yet another possible design of the second aspect, after the determining performs the fail-safe process, the method further includes:
and sending a registration request to the wireless network access equipment, wherein the registration request is used for re-registering the terminal equipment to the wireless network access equipment.
In a third aspect, an embodiment of the present application provides a wireless network access device, including:
the information acquisition module is used for acquiring the network information of the operators to which the at least two core networks belong;
the first detection module is used for broadcasting a first system message to terminal equipment belonging to each core network when the operator networks to which the at least two core networks belong are the same and a first core network fault is detected, wherein the first system message comprises a user number segment for indicating the corresponding terminal equipment to perform fault attenuation processing;
and the second detection module is used for broadcasting a second system message to the terminal equipment belonging to each core network when the operator networks to which the at least two core networks belong are different and the first core network fault is detected, wherein the second system message comprises an operator network identifier for indicating the corresponding terminal equipment to perform fault attenuation processing.
In a fourth aspect, the present application provides a terminal device, including:
the message acquisition module is used for acquiring a first system message or a second system message broadcasted by the wireless access network equipment;
the determining module is used for reading the first system information, determining to perform fault attenuation processing according to the current user number segment of the terminal equipment, or reading the second system information, and determining to perform fault attenuation processing according to the current operator network information of the terminal equipment, wherein the current user number segment is the identification of the terminal equipment, and the current operator network information is the operator network to which the core network to which the terminal equipment is currently connected belongs.
In a fifth aspect, embodiments of the present application provide a communication system, including: the wireless network access device is connected with at least two core networks, and the terminal device is accessed to the core networks through the wireless network access device.
In a sixth aspect, embodiments of the present application provide a readable storage medium having stored thereon a computer program having stored therein computer instructions for implementing the method as described above when executed by a processor.
In a seventh aspect, embodiments of the present application provide a program product comprising a computer program/instruction which, when executed by a processor, implements the method described above.
According to the method, the device and the communication system for processing the failure attenuation, when the wireless access network device detects that one core network fails, users under each core network can be distinguished, the first system message or the second system message is broadcast to the terminal device, the terminal device under the failed core network is informed of entering a failure attenuation processing mode, and the users under other core networks continue to perform normal service, so that when part of the core networks fail, the base station can also partially enter the failure attenuation processing mode aiming at the terminal device under the failed core network, and the basic service of the user under the failed core network is guaranteed.
Drawings
Fig. 1 is a schematic view of a scenario of a fault attenuation processing method provided in an embodiment of the present application;
fig. 2 is a schematic flow chart of a first embodiment of a method for handling failure attenuation according to the embodiment of the present application;
fig. 3 is a schematic flow chart of a second embodiment of a method for handling failure attenuation according to the embodiment of the present application;
fig. 4 is a schematic flow chart of a third embodiment of a method for handling failure attenuation provided in the embodiment of the present application;
fig. 5 is a schematic flow chart of a fourth embodiment of a method for handling failure attenuation provided in the embodiments of the present application;
fig. 6 is a schematic structural diagram of a wireless network access device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;
fig. 8 is a schematic diagram of a frame of a communication system according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
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 to enable, for example, embodiments of the invention described herein to be implemented 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.
The following is a description of some of the terms in the embodiments of the present application to facilitate understanding by those skilled in the art:
RAN：
the radio access network (Radio access network, RAN) device is a device for accessing a terminal device to a wireless network, and may be an evolved base station (evolutional Node B, eNB or eNodeB) in long term evolution (long term evolution, LTE), or a relay station or access point, or a 5G base station (gNB) in a 5G network architecture (next generation system), or may be a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), or the like, which is not limited herein. In one possible manner, the radio access network device may be a base station (e.g., a gNB) with a Centralized Unit (CU) and a Distributed Unit (DU) separated architecture, and the CU and the During may be arranged geographically separately.
MME：
The mobility management entity (Mobility Management Entity, MME) is a key control node of the 3GPP protocol LTE access network, and is responsible for the positioning and paging process of the UE in the idle mode.
PLMN：
An operator network (Public Land Mobile Network, PLMN) may be a network providing land mobile services to the public.
RRC：
A radio resource control (Radio Resource Control, RRC) processes layer three information of a control plane between the UE and an Evolved Node-B.
Fig. 1 is a schematic view of a scenario of a fault attenuation processing method provided in this embodiment, as shown in fig. 1, a terminal device 11 accesses to a core network 13 through a wireless network access device 12, so as to implement a normal communication service, where one wireless network access device 12 may be connected to a plurality of core networks 13 of different PLMNs or core networks 13 of the same PLMN.
In the LTE BtrunC network, when communication between the base station and the core network is interrupted or the core network fails, the base station should be able to process a registration request of a user within the range of the base station, and support services such as a single call and a group call.
The existing failure weakening judging mode is that a broken link occurs between a base station and all core networks, at the moment, the base station can enter a failure weakening processing mode, basic service under failure weakening can be carried out among UE under the base station, but when one of the core networks fails and other core networks still normally operate, judging conditions are not met at the moment, the base station cannot enter the failure weakening processing mode, and a user under the failed core network cannot carry out service.
In view of the above problems, when a base station is connected with a plurality of core networks, if one of the core networks fails, the base station will broadcast a first system message or a second system message to all terminal devices, and notify the terminal devices under the failed core network to enter into a failure attenuation processing mode, so that the base station can enter into a partial failure attenuation processing mode, and can also enable the terminal devices under the failed core network to realize basic services through failure attenuation processing while ensuring that the terminal devices under other normal core networks can perform normal services.
The following describes the technical scheme of the present application in detail through specific embodiments. It should be noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 2 is a flow chart of an embodiment of a method for handling failure attenuation provided in the embodiment of the present application, where the method may be applied to a wireless network access device, and a base station is exemplified, where the base station is connected to at least two core networks, and an execution body of the method may be a base station, and specifically may include the following steps:
s201, acquiring the network information of operators to which at least two core networks belong.
In the embodiment of the present application, the core network includes an enhanced service module (ASU, advanced Service Unit) and an MME, and the exemplary operator network includes china mobile, china telecom, china Unicom, and the like, where for convenience of description, the first core network is referred to as PLMN1, and the second core network is referred to as PLMN2, where PLMN1 and PLMN2 may belong to the same operator network or may belong to different operator networks, the first core network includes MME PLMN1, the second core network includes MME PLMN2, and the base station establishes a connection with MME PLMN1 and MME PLMN2 through the ASU.
Illustratively, the base station establishes S1 connection with MME PLMN1, MME PLMN2, and negotiates supported application layer parameters such as PLMN through S1AP-S1 setup request (supported TAs)/response (supported guard > supported PLMNs) messages.
Illustratively, in some embodiments, the base station may be connected to a plurality of core networks through radio access sharing (RAN sharing, radio access network sharing), and the number of core networks may be more than two.
S202, when the operator networks to which at least two core networks belong are the same, and when a first core network fault is detected, a first system message is broadcast to terminal equipment belonging to each core network.
The first system message includes a user number segment for indicating the corresponding terminal device to perform the fail-safe processing, and illustratively, the first system message includes a SIB32 type System Information Block Type Trunking, where the type carries an IMSISegList identifier for indicating the fail-safe user number segment.
The user number segment is indicative of the identity information of the user's terminal device, and may be a multi-bit digital code, where the number of bits of the digital code may be determined according to the number of total users.
After the terminal equipment receives the user number segment, if the user number segment of the terminal equipment is found to be the same as the user number segment contained in the first system message, the terminal equipment can perform fault attenuation processing, and if the user number segment of the terminal equipment is not the same as the user number segment contained in the first system message, the terminal continues normal service.
The failover process may be, for example, the terminal device re-registering with the failover ASU MME.
In this embodiment of the present application, the first core network may refer to any one or more of core networks connected to the base station, where the plurality does not include all core networks connected to the base station.
For example, the terminal device belonging to MME PLMN1 may be referred to as UE PLMN1, the terminal device belonging to MME PLMN2 may be referred to as UE PLMN2, the first core network may be PLMN1, and when PLMN1 fails and the base station and PLMN1 are disconnected, the base station will broadcast the first system message to UE PLMN1 and UE PLMN2.
S203, when the operator networks to which at least two core networks belong are different, and when the first core network fault is detected, broadcasting a second system message to the terminal equipment belonging to each core network.
The second system message includes an operator network identifier for indicating the corresponding terminal device to perform the fail-safe processing, and illustratively, the second system message includes a SIB32 type systemized information blocktypetest, where the type carries a PLMNList identifier for indicating a fail-safe PLMN list, where the PLMN list includes PLMN1, PLMN2, and so on.
For example, if PLMN1 is included in the PLMN list, that is, the base station and the core network PLMN1 are disconnected, when the core network selected to be accessed by the UE is PLMN1, the UE performs the fail-safe processing.
Illustratively, the fail-over process includes the UE re-registering with the fail-over ASU MME.
According to the method and the device, whether the core network belongs to the same operator network is determined, different system messages are broadcasted to the terminal devices, and the corresponding terminal devices are informed to conduct fault weakening processing, so that when a base station and part of the core network are broken, part of the core network can enter a fault processing mode, the terminal devices under the broken core network can be enabled to enter the fault processing mode, and basic service can be guaranteed.
Illustratively, based on the above embodiments, in some embodiments, step S201 further includes the steps of: and broadcasting a third system message and a paging message to the terminal equipment residing in the coverage area of the wireless access network, and accessing the core network for the terminal equipment.
The third system message comprises the information of the operator network to which each core network belongs, and the paging message is used for paging each terminal device.
Specifically, the third system message may include System Information Block type1, which contains PLMN-identity list, that is, operator network information to which the core network belongs, and the terminal device under the coverage of the base station performs PLMN selection and cell selection according to the third system message to determine to access the corresponding core network, and meanwhile, the terminal device resides in the cell to receive the system information and paging message of the base station, where, by way of example, the system information may include first system information, second system information, and so on.
Further, on the basis of the above embodiment, the base station may broadcast a third system message and a paging message to each terminal device; and receiving the confirmation identifier reported by each terminal device, and accessing the core network corresponding to the confirmation identifier for each terminal device.
Wherein the confirmation identifier comprises an operator network identifier and/or mobile management node registration information of the core network.
Illustratively, the operator network Identity may be a selected plmn-Identity and the mobility management node registration information of the core network may be a registered MME. After receiving the third system message and the paging message, the terminal device performs PLMN selection and cell selection, for example, selects PLMN1 or PLMN2, and the like, and after completing the selection, the terminal device initiates an RRC connection establishment procedure to the base station, and the RRC Connection Setup Complete message carries a selected PLMN-Identity and/or registered MME, specifically including a PLMN identifier selected by the terminal device and a registered MME, and the base station selects an MME that needs to establish a connection for the terminal device according to the PLMN identifier reported by the terminal device.
In some embodiments, when the operator information of at least two core networks is different, and when a first core network failure is detected, a second core network may be detected, and if the first core network and the second core network fail simultaneously (i.e. all core networks connected to the base station fail simultaneously), a first system message is broadcasted to the terminal devices belonging to each core network, and service requests between the terminal devices belonging to different core networks are intercepted.
The service request comprises point call and group call, specifically, because the terminal equipment for performing fault attenuation processing needs to register with the ASU MME, the ASU MME can acquire user subscription information, and can intercept point call services of the UE between different core networks through the ASU MME, so that the UE between different core networks is subjected to service isolation, and the user safety isolation is satisfied.
Fig. 3 is a schematic flow chart of a second embodiment of a failure attenuation processing method provided in the embodiment of the present application, where the method may be applied to a terminal device, and an execution body of the method takes the terminal device as an example, and specifically includes the following steps:
s301, acquiring a first system message or a second system message broadcasted by radio access network equipment.
Specifically, when the base station is disconnected from the first core network, the first system information or the second system information may be broadcast to the terminal device, and explanation of the first system information and the second system information is described above, which is not described herein.
S302, reading the first system information, determining to perform fault attenuation processing according to the current user number segment of the terminal equipment, or reading the second system information, and determining to perform fault attenuation processing according to the current operator network information of the terminal equipment.
The current user number segment is the identifier of the terminal equipment, and the current operator network information is the operator network to which the core network to which the terminal equipment is currently connected belongs.
Specifically, when the terminal equipment receives the first system message, if the user number segment in the first system is the same as the current user number segment of the terminal equipment, the characterization base station indicates the terminal equipment to perform fault attenuation processing, and when the terminal equipment receives the second system message, if the operator network identifier in the second system message is the same as the current operator network information of the terminal equipment, the characterization base station indicates the terminal equipment to perform fault attenuation processing.
When the terminal device performs fault attenuation, a registration request may be sent to the wireless network access device.
Wherein the registration request is for the terminal device to re-register with the wireless network access device.
For example, the fail-over process may be that the terminal device re-registers under the fail-over ASU MME.
According to the method and the device for processing the network failure, the first system information or the second system information is read, whether the failure weakening processing is needed or not is determined according to the current user number segment and the current operator network information, so that the base station can partially perform the failure weakening processing mode, and the terminal equipment can still perform basic service under the condition that the accessed core network fails.
In some embodiments, the terminal device compares the user number segment with the current user number segment by acquiring the user number segment of the first system message, if the user number segment is the same as the current user number segment, performs the fail-safe processing, and if the user number segment is not the same as the current user number segment, does not perform the fail-safe processing.
Specifically, the user number segment may refer to identity information of a terminal device accessing a core network disconnected from the base station.
In some embodiments, the terminal device compares the operator network identifier with the current operator network information by acquiring the operator network identifier of the second system message, if the operator network identifier is the same as the current operator network information, performs the fault attenuation processing, and if the operator network identifier is the same as the current operator network information, does not perform the fault attenuation processing.
Specifically, the operator network identifier is a core network for identifying a link broken with the base station, and the core network belongs to the operator network.
Fig. 4 is a flow chart of a third embodiment of a failure attenuation processing method provided in the embodiment of the present application, as shown in fig. 4, in the embodiment of the present application, two core networks are taken as an example, including a large network MME PLMN1 and a large network MME PLMN2 as an example, and operator network information of the two core networks are different, which includes the following steps:
s401, the ENB establishes a connection with the large network MME PLMN1 and a connection with the large network MME PLMN2 through an ASU (MME).
Illustratively, the ENB establishes S1 connection with the large network MME PLMN1, MME PLMN2 through an ASU (MME).
S402, the ENB broadcasts the PLMN-identity list in the system information System Information Block Type1 to a PLMN list supported by the terminal device, where the terminal device includes a UE PLMN1 (for accessing the large network MME PLMN 1) and a UE PLMN2 (for accessing the large network MME PLMN 2).
S403, when the ENB is disconnected with the large network MME PLMN1 and is normally connected with the large network MME PLMN2, the ENB informs the UE PLMN1 to perform fault weakening treatment, and the UE PLMN2 continuously ensures normal operation.
Specifically, the ENB defines an SIB32 type System Information BlockType Trunking in a System Information message of the air interface to indicate the trunking terminal device, where the type carries a PLMN list with a PLMNList identifier indicating a failure weakened PLMN list, and when the terminal device selects an accessed PLMN to be in the PLMN list, the terminal device needs to perform failure weakened processing.
For example, if PLMN1 is included in the PLMN list, the UE PLMN1 needs to perform the failure attenuation processing.
Exemplary, system Information messages are defined as follows:
System Information BlockType Trunking::＝SEQUENCE{
tPCCH-Config TPCCH-Config,
cellFailurePLMNList PLMN-IdentityList OPTIONAL，Need OR
p-t ENUMERATED{dB-6，dB-4dot77，dB-3，dB-1dot77，dB0，dB1，dB2，dB3}OPTIONAL，--Need OP
trunkingBsrInd ENUMERATED{true}OPTIONAL，Need OR
nonCriticalExtension SystemInformationBlockTypeTrunking-R2-IEs OPTIONAL Need OP}
s404, after receiving the failure weakening indication, the UE PLMN1 re-registers with the failure weakening ASU MME in the failure weakening PLMN list, and the PLMN1 re-registers with the failure weakening mode.
S405, the UE PLMN2 continues to carry out service in the normal mode, and the UE PLMN1 and the UE PLMN2 are not in communication.
In particular, when the ENB breaks the link with all connected core networks, all UEs under the base station enter a failure weakening mode to register, the point call service of the terminal equipment between different PLMNs is rejected by the ASU MME control, and the cluster grouping between different PLMNs is separately grouped according to the PLMNs.
Fig. 5 is a flow chart of a fourth embodiment of a method for handling failure attenuation provided in the embodiment of the present application, as shown in fig. 5, in the embodiment of the present application, two core networks are taken as an example, including a large network MME-a PLMN and a large network MME-B PLMN as examples, and operator network information of the two core networks is the same, which includes the following steps:
s501, the ENB establishes connection with a large network MME-A PLMN through an ASU (MME), and establishes connection with a large network MME-B PLMN.
S502, the ENB broadcasts PLMN-identity list in the system information System Information Block Type1 to a PLMN list supported by the terminal device, where the terminal device includes ue a MME-a (for accessing a large network MME-a PLMN) and ue B MME-B (for accessing a large network MME-B PLMN).
S503, when ENB breaks link with large network MME-A PLMN and is in normal connection with large network MME-B PLMN, ENB informs UEA MME-A to perform fault weakening treatment, and UEB MME-B continues to ensure normal operation.
Specifically, the ENB defines an SIB32 type System Information BlockType Trunking in a System Information message of the air interface to indicate the trunking terminal device, where the type carries an IMSISegList identifier to indicate a user number segment of failure attenuation, and when the current user number segment of the terminal device is the same as the user number segment, the terminal device needs to perform failure attenuation processing.
Exemplary, system Information messages are defined as follows:
System Information BlockType Trunking::＝SEQUENCE{
tPCCH-Config TPCCH-Config,
cellFailureIMSISegList IMSISegList OPTIONAL，Need OR
p-t ENUMERATED{dB-6，dB-4dot77，dB-3，dB-1dot77，dB0，dB1，dB2，dB3}OPTIONAL，--Need OP
trunkingBsrInd ENUMERATED{true}OPTIONAL，Need OR
nonCriticalExtension SystemInformationBlockTypeTrunking-R2-IEs OPTIONAL Need OP}
s504, after receiving the failure weakening instruction, and when the current user number segment of the terminal equipment is the same as the user number segment in the IMSISegList identifier, the terminal equipment re-registers to the failure weakening ASU MME, and the UE A MME-A re-registers in the failure weakening mode.
S505, UEB MME-B continues to perform traffic in the normal mode.
Fig. 6 is a schematic structural diagram of a wireless network access device according to an embodiment of the present application, and as shown in fig. 6, the wireless network access device 60 includes an information obtaining module 61, a first detecting module 62, and a second detecting module 63.
An information obtaining module 61, configured to obtain information of an operator network to which at least two core networks belong.
A first detection module 62 is configured to broadcast a first system message to terminal devices belonging to each core network when the operator networks to which at least two core networks belong are the same and a first core network failure is detected.
A second detection module 63, configured to broadcast a second system message to the terminal device belonging to each core network when the operator networks to which at least two core networks belong are different and the first core network failure is detected.
The first system message comprises a user number segment for indicating the corresponding terminal equipment to perform fault attenuation processing, and the second system message comprises an operator network identifier for indicating the corresponding terminal equipment to perform fault attenuation processing.
In some embodiments, the wireless network access device may further comprise a connection module for sharing a connection with at least two core networks through the wireless access network.
In some embodiments, the wireless network access device may further comprise a broadcasting module for broadcasting a third system message and a paging message to terminal devices residing in an area covered by the wireless access network for accessing the terminal devices to the core network.
The third system message comprises the information of the operator network to which each core network belongs, and the paging message is used for paging each terminal device.
Preferably, in some embodiments, the broadcasting module may be specifically configured to broadcast the third system message and the paging message to each terminal device; and receiving the confirmation identifier reported by each terminal device, and accessing a core network corresponding to the confirmation identifier for each terminal device.
Wherein the confirmation identifier comprises an operator network identifier and/or mobile management node registration information of the core network.
For example, in some embodiments, the second detection module may be specifically configured to detect the second core network when the operator information of at least two core networks is different, and when the first core network failure is detected; broadcasting a first system message to terminal devices belonging to each core network when the first core network and the second core network fail; and intercepting the service requests among the terminal devices belonging to different core networks.
Wherein the service request comprises a click-to-call and a group call.
Fig. 7 is a schematic structural diagram of a terminal device provided in an embodiment of the present application, and as shown in fig. 7, the terminal device 70 includes a message obtaining module 71 and a determining module 72, where,
a message obtaining module 71, configured to obtain a first system message or a second system message broadcasted by the radio access network device;
the determining module 72 is configured to read the first system message, determine to perform the failover processing according to the current user number segment of the terminal device, or read the second system message, and determine to perform the failover processing according to the current operator network information of the terminal device.
The current user number segment is the identifier of the terminal equipment, and the current operator network information is the operator network to which the core network to which the terminal equipment is currently connected belongs.
In some embodiments, the determining module may be specifically configured to obtain a user number segment of the first system message, and compare the user number segment with a current user number segment; if the user number segment is the same as the current user number segment, performing fault attenuation treatment; if the user number segment is different from the current user number segment, failure weakening processing is not performed.
For example, in some embodiments, the determining module may be specifically configured to obtain an operator network identifier of the second system message, and compare the operator network identifier with current operator network information; if the network identifier of the operator is the same as the network information of the current operator, performing fault attenuation processing; if the operator network identification is the same as the current operator network information, failure weakening processing is not performed.
The terminal device may further comprise a registration module for sending a registration request to the wireless network access device, for example.
Wherein the registration request is for the terminal device to re-register with the wireless network access device.
It should be noted that, it should be understood that the division of the modules of the above apparatus is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a form of calling software by a processing element, and the method can be realized in a form of hardware by a part of modules. For example, the determining module may be a processing element that is set up separately, may be implemented in a chip of the above apparatus, or may be stored in a memory of the above apparatus in the form of program code, and may be called by a processing element of the above apparatus and execute the functions of the determining module. The implementation of the other modules is similar. In addition, all or part of the modules can be integrated together or can be independently implemented. The processing element here may be an integrated circuit with signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form.
For example, the modules above may be one or more integrated circuits configured to implement the methods above, such as: one or more specific integrated circuits (application specific integrated circuit, ASIC), or one or more microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA), or the like. For another example, when a module above is implemented in the form of a processing element scheduler code, the processing element may be a general purpose processor, such as a central processing unit (central processing unit, CPU) or other processor that may invoke the program code. For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 8 is a schematic diagram of a frame of a communication system provided in an embodiment of the present application, where the communication system includes a wireless network access device 81 and a terminal device 82, where the wireless network access device 81 is connected to at least two core networks 83, and the terminal device 82 accesses to the core networks 83 through the wireless network access device 81.
In the embodiment of the application, the communication system specifically may include a network device and a terminal device, and the network device may include a radio access network device and a core network device. The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the functions of the core network device and the logic functions of the radio access network device may be integrated on the same physical device, or the functions of part of the core network device and the functions of part of the radio access network device may be integrated on one physical device.
Optionally, the embodiment of the present application further provides a readable storage medium, on which a computer program is stored, where the readable storage medium stores computer instructions for implementing the method as described above when the computer instructions are executed by a processor.
Optionally, embodiments of the present application further provide a program product comprising a computer program/instruction which, when executed by a processor, implements the above-mentioned method.
In the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the front and rear associated objects are an "or" relationship; in the formula, the character "/" indicates that the front and rear associated objects are a "division" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application. In the embodiments of the present application, the sequence number of each process does not mean the sequence of execution sequence, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
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 (8)

1. A method of handling failover, applied to a wireless network access device, the wireless network access device having at least two core networks connected thereto, the method comprising the steps of:
acquiring the network information of an operator to which the at least two core networks belong;
when the operator networks to which the at least two core networks belong are the same, and a first core network fault is detected, broadcasting a first system message to terminal equipment belonging to each core network, wherein the first system message comprises a user number segment for indicating the corresponding terminal equipment to perform fault attenuation treatment;
and when the operator networks to which the at least two core networks belong are different, and the first core network fault is detected, broadcasting a second system message to the terminal equipment belonging to each core network, wherein the second system message comprises an operator network identifier for indicating the corresponding terminal equipment to perform fault attenuation processing.
2. The method according to claim 1, wherein before the obtaining the operator network information to which the at least two core networks belong, further comprising:
and sharing connection with the at least two core networks through a wireless access network.
3. The method according to claim 1, wherein when the operator networks to which the at least two core networks belong are the same and when a first core network failure is detected, before broadcasting the first system message to the terminal devices belonging to each core network, further comprising:
broadcasting a third system message and a paging message to terminal equipment residing in a coverage area of a wireless access network, wherein the third system message comprises operator network information to which each core network belongs, and the paging message is used for paging each terminal equipment.
4. A method according to claim 3, characterized in that said broadcasting a third system message and a paging message to terminal devices residing in the area covered by the radio access network for said terminal devices to access the core network comprises:
broadcasting a third system message and a paging message to each terminal device;
and receiving confirmation identification reported by each terminal device, and accessing a core network corresponding to the confirmation identification for each terminal device, wherein the confirmation identification comprises an operator network identification and/or mobile management node registration information of the core network.
5. The method according to claim 1, wherein said broadcasting a first system message to terminal devices belonging to each core network when the operator networks to which the at least two core networks belong are the same and a first core network failure is detected, comprises:
detecting a second core network when the operator information of the at least two core networks is different and a first core network fault is detected;
broadcasting a first system message to terminal devices belonging to each core network when the first core network and the second core network fail;
intercepting service requests among terminal devices belonging to different core networks, wherein the service requests comprise point calls and group calls.
6. A wireless network access device, comprising:
the information acquisition module is used for acquiring the network information of the operators to which at least two core networks belong;
the first detection module is used for broadcasting a first system message to terminal equipment belonging to each core network when the operator networks to which the at least two core networks belong are the same and a first core network fault is detected, wherein the first system message comprises a user number segment for indicating the corresponding terminal equipment to perform fault attenuation processing;
and the second detection module is used for broadcasting a second system message to the terminal equipment belonging to each core network when the operator networks to which the at least two core networks belong are different and the first core network fault is detected, wherein the second system message comprises an operator network identifier for indicating the corresponding terminal equipment to perform fault attenuation processing.
7. A communication system, 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 fail-safe processing method of any of claims 1-5.
8. A readable storage medium having stored thereon a computer program, characterized in that the readable storage medium has stored therein computer instructions for implementing the method according to any of claims 1-5 when executed by a processor.
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