CN111065122B - LTE disaster recovery method and system across core network - Google Patents
LTE disaster recovery method and system across core network Download PDFInfo
- Publication number
- CN111065122B CN111065122B CN202010066668.1A CN202010066668A CN111065122B CN 111065122 B CN111065122 B CN 111065122B CN 202010066668 A CN202010066668 A CN 202010066668A CN 111065122 B CN111065122 B CN 111065122B
- Authority
- CN
- China
- Prior art keywords
- core network
- base station
- network device
- connection
- network devices
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a cross-core network LTE disaster recovery method and a system thereof, wherein the method comprises the following steps: at least two core network devices establish a detection link with each other; configuring an identifier set allowing access to the base station corresponding to each core network device; and if the state of one core network device is judged to be abnormal according to the detection link, selecting one core network device with a normal state from the rest core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the one core network device. On the premise of not changing the equipment networking, the S1-flex function of the base station is skillfully used, the core network equipment resources are fully utilized, and a disaster recovery mechanism with higher usability and realizability is realized.
Description
The application is a divisional application with the application number of 201610905029.3, the application date of 2016, 10 and 18, and the name of LTE disaster recovery method and system.
Technical Field
The invention relates to the technical field of communication, in particular to a cross-core-network LTE disaster recovery method and a system thereof.
Background
With the continuous development of mobile communication technology. LTE mobile communications that accommodate mobile data, mobile computing, and mobile multimedia operations are beginning to emerge. The LTE is based on the old GSM/EDGE and UMTS/HSPA network technologies, is the upgrade of the GSM/UMTS standard, is a transition between 3G and 4G technologies, is a global standard of 3.9G, improves and enhances the 3G air access technology, realizes high data rate and low delay, improves the performance of cell EDGE users, improves the cell capacity, reduces the system delay and enhances the user experience.
The S1 interface is an interface between the core network and the base station. The difference between the S1 interface and the Iu interface of the 3G UMTS system is that the Iu interface connection includes the PS domain and the CS domain of the 3G core network, and the evolved core network only supports packet switching, that is, the S1 interface only needs to support the PS domain. The S1 interface is divided into a user plane (S1-U) and a control plane (S1-MME).
The S1 interface user plane provides the transport functionality of user data between a base station (eNodeB) and a Serving Gateway (SGW). Protocol stack of S1 interface user plane as shown in fig. 1 (a), the transport network layer of S1-U is based on IP transport, and the GPRS user plane tunneling protocol (GTP-U) is used on top of UDP/IP protocol to transport user plane PDUs between SGW and eNodeB.
The S1 interface control plane provides transport functions for signaling messages between the base station (eNodeB) and the control node (MME). As shown in fig. 1 (b), the protocol stack of the S1 interface control plane is also based on IP transmission, except that the control plane uses SCTP on the IP layer to provide reliable transmission for signaling messages of the radio network layer.
In a mobile communication system, it is particularly important that devices operate stably to ensure that user services are not interrupted. However, in the existing network, the base station is only connected to one core network device, and when the core network device fails, if there is no corresponding disaster recovery method, the base station cannot continue to provide communication services for users, which results in large-area service interruption.
In a chinese patent publication No. CN1859697, a method for disaster recovery of a radio network controller RNC node is proposed, which includes: the base station NodeB continuously monitors whether the connection between the NodeB and the RNC is normal, and when the connection interruption is monitored, the NodeB tries to establish connection with another RNC; the NodeB judges whether the operation of trying to establish the connection with the other RNC is successful, if so, the other RNC initializes the NodeB and provides service; otherwise, the NodeB continues to attempt the connection until a successful connection to an RNC is made. However, in this solution, the connection is detected on the NodeB through the SCTP link connection, and if the SCTP link is disconnected, it is considered that the connected RNC has failed, but if the SCTP connection between the NodeB and the RNC is normal, but other functional modules in the RNC are abnormal, the NodeB cannot know it, and the effect of disaster recovery cannot be achieved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the LTE disaster recovery method and the LTE disaster recovery system across the core network have high usability and realizability.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a LTE disaster recovery method across core networks comprises the following steps:
at least two core network devices establish a detection link with each other;
configuring an identifier set allowing access to the base station corresponding to each core network device;
and if the state of one core network device is judged to be abnormal according to the detection link, selecting one core network device with a normal state from the rest core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the one core network device.
The invention also relates to an LTE disaster recovery system across the core network, which comprises:
a first establishing module, configured to establish a detection link between at least two core network devices;
a configuration module, configured to configure an identifier set allowing access to the base station corresponding to each core network device;
and the selecting module is used for selecting a core network device with a normal state from the rest core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the core network device if the state of the core network device is judged to be abnormal according to the detection link.
The invention has the beneficial effects that: by establishing a detection link between any two core network devices, the working state of the core network device at the opposite end can be detected and whether the core network device at the opposite end is abnormal or not can be judged; determining the range of the base station initially administered by each core network device by configuring a base station identifier set corresponding to each core network device; when the core network equipment fails, the core network equipment in a normal state is selected to respond to the request of the base station under the failed core network equipment, so that the base station can establish S1 connection with other core network equipment which normally works again, communication services are continuously provided for users, and long-term service interruption of the users is avoided. On the premise of not changing the equipment networking, the S1-flex function of the base station is skillfully used, the core network equipment resources are fully utilized, and a disaster recovery mechanism with higher usability and realizability is realized.
Drawings
FIG. 1 (a) is a schematic diagram of a protocol stack of an S1 interface user plane;
FIG. 1 (b) is a schematic diagram of a protocol stack of an S1 interface control plane;
fig. 2 is a flowchart of an LTE disaster recovery method across core networks according to the present invention;
FIG. 3 is a flowchart of a method according to a first embodiment of the present invention;
FIG. 4 is a flowchart of step S11 according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of an LTE disaster recovery system across core networks according to the present invention;
fig. 6 is a schematic structural diagram of a system according to a third embodiment of the present invention.
Description of reference numerals:
1. a first establishing module; 2. a configuration module; 3. a selection module; 4. a sending module; 5. a first judgment module; 6. a response module; 7. a second establishing module; 8. an interaction module; 9. a second judgment module; 10. a decision module; 11. a third judging module;
31. an acquisition unit; 32. a comparison unit; 33. a response unit.
Detailed Description
In order to explain technical contents, objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The most key concept of the invention is as follows: and the S1-flex function of the base station is utilized to realize a disaster recovery mechanism with higher usability and realizability.
Referring to fig. 2, an LTE disaster recovery method across core networks includes:
at least two core network devices establish a detection link with each other;
configuring an identifier set allowing access to the base station corresponding to each core network device;
and if the state of one core network device is judged to be abnormal according to the detection link, selecting one core network device in a normal state from the rest core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the one core network device.
From the above description, the beneficial effects of the present invention are: the method and the device avoid that the base station administered by the core network equipment becomes an isolated point when the core network equipment fails, ensure that the base station can continue to provide communication services for users, and avoid long-term interruption of the services of the users.
Further, after the configuring the identifier set allowing access to the base station corresponding to each core network device, the method further includes:
the base station continuously sends an S1 connection request including a base station identifier to each core network device according to a preset periodic interval;
each core network device judges whether the base station identifier in the S1 connection request belongs to a base station identifier set of the core network device;
and if so, responding to the S1 connection request of the base station and establishing S1 connection with the base station.
Further, before the "the base station continuously sends the S1 connection request including the base station identifier to the core network device at preset periodic intervals", the method further includes:
and the base station establishes SCTP connection with each core network device respectively.
As can be seen from the above description, the S1 connection can only be established if an SCTP connection is established.
Further, after the "at least two core network devices establish a detection link with each other", the method further includes:
and interacting the keep-alive messages through the detection link.
Further, before the determining that the state of a core network device is abnormal according to the detection link, the method further includes:
the method comprises the steps that the remaining core network devices except a core network device judge whether keep-alive messages sent by the core network device are not received within preset detection time;
if yes, judging that the state of the core network equipment is abnormal;
if not, judging whether the state of the core network is abnormal or not according to the data of the keep-alive message.
As can be seen from the above description, by interacting the keep-alive messages, the core network devices can not only detect whether the detection link is disconnected, but also detect whether the internal function modules are abnormal.
Further, if it is determined that a core network device is in an abnormal state according to the detection link, selecting a core network device in a normal state from the remaining core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the core network device specifically includes:
if the state of one core network device is judged to be abnormal according to the detection link, the rest core network devices acquire the number of base stations which establish S1 connection with the core network devices and send the base stations to other core network devices through the detection link;
the rest core network equipment receives the base station number sent by other core network equipment and compares the base station number with the base station number of the rest core network equipment;
and if one core network device in a normal state in the remaining core network devices judges that the number of the base stations establishing S1 connection with the core network device is the least, responding to an S1 connection request initiated by a corresponding base station in the base station identifier set of the core network device, and establishing S1 connection with the base station.
As can be seen from the above description, the load balancing mechanism is adopted to balance the load among the core network devices, thereby improving the performance of the overall disaster recovery system.
Referring to fig. 5, the present invention further provides an LTE disaster recovery system across core networks, including:
a first establishing module, configured to establish a detection link between at least two core network devices;
a configuration module, configured to configure an identifier set allowing access to the base station corresponding to each core network device;
and the selecting module is used for selecting a core network device with a normal state from the rest core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the core network device if the state of the core network device is judged to be abnormal according to the detection link.
Further, the method also comprises the following steps:
a sending module, configured to continuously send, by a base station according to a preset periodic interval, an S1 connection request including a base station identifier to each core network device;
a first judging module, configured to judge, by each core network device, whether a base station identifier in the S1 connection request belongs to a base station identifier set of the core network device;
and if so, responding to the S1 connection request of the base station and establishing S1 connection with the base station.
Further, still include:
and the second establishing module is used for establishing the SCTP connection between the base station and each core network device respectively.
Further, still include:
and the interaction module is used for interacting the keep-alive messages through the detection link.
Example one
Referring to fig. 3, a first embodiment of the present invention is: a LTE disaster recovery method across core networks is based on an S1-flex function of a base station (the base station can simultaneously establish SCTP/S1 connection with control nodes MME of a plurality of core network devices), and comprises the following steps:
s1: at least two core network devices establish a detection link with each other; that is, in more than two core network devices, a detection link is established between each core network device and the rest of the core network devices.
S2: interacting the keep-alive messages through the detection link; further, keep-alive messages are interacted through a TCP protocol, and self-defined messages are filled in data fields of the messages and used for detecting the working state of the core network equipment of the opposite terminal. For example, the message data fields are defined as follows:
wherein, the message type represents the link detection message type, the length is four bytes, and the fixed value is 0xddf0xdf 0xfa 0xfa; status represents the link state, the length is two bytes, and the value is 1 (representing the link state is normal) or 2 (representing the link state is abnormal); modules represent abnormal modules, have a length of two bytes, and take a value of 1 (representing the abnormality of the MME module), 2 (representing the abnormality of the PGW module) or 3 (representing the abnormality of the SWG module), and take a value of 0 if no module is abnormal.
S3: configuring an identifier set allowing access to the base station corresponding to each core network device; the base station identifier may be a base station number, and a base station range governed by the base station identifier, that is, a base station number set, is configured in each core network device. Under normal conditions, the identifier set of each core network device is not overlapped with the identifier sets of other core network devices, that is, one base station only corresponds to one core network device at the same time.
S4: the base station respectively establishes SCTP connection with each core network device; the S1 connection is established by bearing on the SCTP connection, and the S1 connection can be established only if the SCTP connection is established.
S5: the base station continuously sends an S1 connection request including a base station identifier to each core network device according to a preset periodic interval.
S6: each core network device judges whether the base station identifier in the S1 connection request belongs to a base station identifier set of the core network device; if yes, go to step S7.
S7: and responding to the S1 connection request of the base station, and establishing S1 connection with the base station. Since the identifier of one base station only exists in the identifier set of one core network device, at this time, one base station establishes S1 connection with only one core network device.
S8: and the rest core network devices except the core network device judge whether the keep-alive message sent by the core network device is not received within preset detection time, if not, the step S9 is executed, and if so, the step S10 is executed. The step mainly detects whether a detection link between core network devices is disconnected or not, so as to judge whether the states of the core network devices are abnormal or not.
S9: and judging whether the state of the core network is abnormal or not according to the data of the keep-alive message, and if so, executing the step S10. The step is mainly to judge whether the function module in the core network equipment is abnormal or not according to the data in the keep-alive message.
S10: and judging that the state of the core network equipment is abnormal, and executing the step S11.
S11: selecting a core network device in a normal state from the rest core network devices to respond to an S1 connection request initiated by a corresponding base station in the identifier set of the core network device; selecting a core network device with normal state to administer the base station administered by the core network device with abnormal state; the original core network equipment only responds to the S1 connection request of the base station administered by the core network equipment, if the core network equipment is not the base station administered by the core network equipment, the request is rejected, at the moment, the core network equipment with a normal state is judged to be abnormal, and the core network equipment with a normal state only responds to the S1 connection request of the base station administered by the core network equipment with an abnormal state.
Preferably, the step S11 selects a core network device in a normal state according to the load balancing policy, and specifically, as shown in fig. 4, includes the following steps:
s1101: and the rest core network equipment acquires the number of the base stations which establish S1 connection with the core network equipment and sends the number to other core network equipment through a detection link.
S1102: the rest core network equipment receives the base station number sent by other core network equipment and compares the base station number with the base station number of the rest core network equipment; i.e. compared to the number of base stations that have established S1 connections themselves.
S1103: the core network device in a normal state in the remaining core network devices determines whether the number of base stations establishing S1 connection with the core network device is minimum, and if so, executes step S1104.
S1104: responding to an S1 connection request initiated by a corresponding base station in the base station identifier set of the core network equipment, and establishing S1 connection with the base station.
The embodiment avoids the problem that when the core network equipment fails, the base station administered by the core network equipment becomes an isolated point and cannot provide communication service; when the core network equipment fails, the base station can establish S1 connection with other normally working core network equipment again to continue to provide communication services for users, so that long-term service interruption of the users is avoided; meanwhile, on the premise of not changing the equipment networking, the S1-flex function of the base station is skillfully used, the core network equipment resources are fully utilized, and a disaster recovery mechanism with higher usability and realizability is realized.
Example two
The present embodiment is a specific application scenario of the first embodiment.
In this embodiment, three sets of core network devices are taken as an example, which are a first core network device EPC1, a second core network device EPC2, and a third core network device EPC3, and detection links are established among the three sets of core network devices; 100 base stations are connected under first core network equipment EPC1, and the serial numbers are 1-100 respectively; 200 base stations are connected under second core network equipment EPC2, and the serial numbers are 101-300 respectively; 300 base stations are connected under the third core network device EPC3, and the numbers are 301-600 respectively. The core network device informs other core network devices of the number of the base stations which are connected through the detection link.
If the first core network equipment EPC1 is abnormal, and the third core network equipment EPC3 finds that the load of the second core network equipment EPC2 is lighter than itself, it continues to reject the request of 100 base stations originally connected with the first core network equipment EPC1, that is, the S1 connection request of the base stations numbered 1-100; the second core network device EPC2 finds that its load is lightest among the remaining core network devices, that is, the number of connected base stations is minimum, and responds to the S1 connection request of the base stations numbered 1 to 100, thereby implementing load balancing.
EXAMPLE III
Referring to fig. 6, this embodiment is an LTE disaster recovery system across core networks corresponding to the above embodiments, and includes:
a first establishing module 1, configured to establish a detection link between at least two core network devices;
a configuration module 2, configured to configure an identifier set allowing access to the base station corresponding to each core network device;
and the selecting module 3 is configured to select a core network device in a normal state from the remaining core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the core network device if it is determined that the state of the core network device is abnormal according to the detection link.
Further, still include:
a sending module 4, configured to continuously send, by a base station according to a preset periodic interval, an S1 connection request including a base station identifier to each core network device;
a first determining module 5, configured to determine, by each core network device, whether a base station identifier in the S1 connection request belongs to a base station identifier set of the core network device;
and a response module 6, configured to respond to the S1 connection request of the base station and establish an S1 connection with the base station if the answer is positive.
Further, still include:
and a second establishing module 7, configured to establish an SCTP connection between the base station and each core network device.
Further, still include:
and the interaction module 8 is used for interacting the keep-alive messages through the detection link.
Further, the method also comprises the following steps:
a second determining module 9, configured to determine, by the remaining core network devices except for the core network device, whether the keep-alive message sent by the core network device is not received within a preset detection time;
a determining module 10, configured to determine that the state of the core network device is abnormal if the core network device is in the normal state;
and a third judging module 11, configured to judge whether the state of the core network is abnormal according to the data of the keep-alive message if the core network is not in the normal state.
Further, the selection module 3 includes:
an obtaining unit 31, configured to, if it is determined that a core network device is in an abnormal state according to the detection link, obtain, by the remaining core network devices, the number of base stations that establish S1 connection with the remaining core network devices, and send the number of base stations to other core network devices through the detection link;
a comparing unit 32, configured to receive, by the remaining core network devices, the number of base stations sent by other core network devices, and compare the number of base stations with the number of base stations of the remaining core network devices;
the response unit 33 is configured to, if a core network device in a normal state in the remaining core network devices determines that the number of base stations establishing S1 connection with the core network device is the minimum, respond to an S1 connection request initiated by a corresponding base station in the base station identifier set of the core network device, and establish S1 connection with the base station.
In summary, according to the LTE disaster recovery method and system across core networks provided by the present invention, a detection link is established between any two core network devices, so as to detect the working state of the core network device at the opposite end and determine whether the core network device at the opposite end is abnormal; by interacting the keep-alive messages, the core network devices can not only detect whether the detection link is disconnected, but also can mutually detect whether the internal functional modules are abnormal; determining the range of the base station initially administered by each core network device by configuring a base station identifier set corresponding to each core network device; when the core network equipment fails, the core network equipment in a normal state is selected to respond to the request of the base station under the failed core network equipment, so that the base station can establish S1 connection with other core network equipment which normally works again, communication service is continuously provided for a user, and long-term service interruption of the user is avoided. On the premise of not changing the equipment networking, the S1-flex function of the base station is skillfully used, the core network equipment resources are fully utilized, and a disaster recovery mechanism with higher usability and realizability is realized.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. An LTE disaster recovery method across core networks is characterized by comprising the following steps:
the method comprises the steps that detection links are established among at least two core network devices, the detection links are established between each core network device and the rest core network devices, and the at least two core network devices belong to different core networks respectively;
configuring an identifier set allowing access to the base station corresponding to each core network device;
if the core network equipment is judged to be abnormal according to the detection link, selecting core network equipment with a normal state from the rest core network equipment to respond to an S1 connection request initiated by a corresponding base station in the identifier set of the core network equipment;
if the core network device is judged to be in an abnormal state according to the detection link, selecting a core network device in a normal state from the remaining core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the core network device specifically includes:
if the state of one core network device is judged to be abnormal according to the detection link, the rest core network devices acquire the number of base stations which establish S1 connection with the core network devices and send the base stations to other core network devices through the detection link;
the rest core network equipment receives the base station number sent by other core network equipment and compares the base station number with the base station number of the rest core network equipment;
and if one core network device in a normal state in the remaining core network devices judges that the number of the base stations for establishing S1 connection with the core network device is the least, responding to an S1 connection request initiated by a corresponding base station in the base station identifier set of the core network device, and establishing S1 connection with the base station.
2. The method according to claim 1, wherein after configuring the set of identifiers allowing access to the base station for each core network device, the method further comprises:
the base station continuously sends an S1 connection request including a base station identifier to each core network device according to a preset periodic interval;
each core network device judges whether the base station identifier in the S1 connection request belongs to a base station identifier set of the core network device;
and if so, responding to the S1 connection request of the base station and establishing S1 connection with the base station.
3. The LTE disaster recovery method across core networks according to claim 2, wherein before the base station continuously sends an S1 connection request including a base station identifier to the core network device according to a preset periodic interval, the method further comprises:
and the base station establishes SCTP connection with each core network device respectively.
4. The LTE disaster recovery method across core networks according to claim 1, wherein after the at least two core network devices establish the detection link with each other, further comprising:
and interacting the keep-alive messages through the detection link.
5. The method according to claim 4, wherein before determining that a core network device is in an abnormal state according to the detection link, the method further comprises:
the method comprises the steps that the remaining core network devices except a core network device judge whether keep-alive messages sent by the core network device are not received within preset detection time;
if yes, judging that the state of the core network equipment is abnormal;
if not, judging whether the state of the core network is abnormal or not according to the data of the keep-alive message.
6. An LTE disaster recovery system across core networks, comprising:
the first establishing module is used for establishing a detection link between at least two core network devices, the detection link is established between each core network device and the other core network devices, and the at least two core network devices belong to different core networks respectively;
a configuration module, configured to configure an identifier set allowing access to the base station corresponding to each core network device;
the selection module is used for selecting core network equipment in a normal state from the rest core network equipment to respond to an S1 connection request initiated by a corresponding base station in the identifier set of the core network equipment if the state of the core network equipment is judged to be abnormal according to the detection link;
if the core network device is judged to be abnormal according to the detection link, selecting a core network device with a normal state from the rest core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the core network device specifically comprises:
if the state of one core network device is judged to be abnormal according to the detection link, the rest core network devices acquire the number of base stations which establish S1 connection with the core network devices and send the base stations to other core network devices through the detection link;
the rest core network equipment receives the base station number sent by other core network equipment and compares the base station number with the base station number of the rest core network equipment;
and if one core network device in a normal state in the remaining core network devices judges that the number of the base stations establishing S1 connection with the core network device is the least, responding to an S1 connection request initiated by a corresponding base station in the base station identifier set of the core network device, and establishing S1 connection with the base station.
7. The LTE disaster recovery system across core networks according to claim 6, further comprising:
a sending module, configured to continuously send, by a base station according to a preset periodic interval, an S1 connection request including a base station identifier to each core network device;
a first judging module, configured to judge, by each core network device, whether a base station identifier in the S1 connection request belongs to a base station identifier set of the core network device;
and if so, responding to the S1 connection request of the base station and establishing S1 connection with the base station.
8. The LTE disaster recovery system across core networks according to claim 7, further comprising:
and the second establishing module is used for establishing the SCTP connection between the base station and each core network device respectively.
9. The LTE disaster recovery system across core networks according to claim 6, further comprising:
and the interaction module is used for interacting the keep-alive messages through the detection link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066668.1A CN111065122B (en) | 2016-10-18 | 2016-10-18 | LTE disaster recovery method and system across core network |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066668.1A CN111065122B (en) | 2016-10-18 | 2016-10-18 | LTE disaster recovery method and system across core network |
| CN201610905029.3A CN106535237B (en) | 2016-10-18 | 2016-10-18 | LTE disaster tolerance method and system thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610905029.3A Division CN106535237B (en) | 2016-10-18 | 2016-10-18 | LTE disaster tolerance method and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111065122A CN111065122A (en) | 2020-04-24 |
| CN111065122B true CN111065122B (en) | 2022-10-04 |
Family
ID=58332325
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010066668.1A Active CN111065122B (en) | 2016-10-18 | 2016-10-18 | LTE disaster recovery method and system across core network |
| CN201610905029.3A Active CN106535237B (en) | 2016-10-18 | 2016-10-18 | LTE disaster tolerance method and system thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610905029.3A Active CN106535237B (en) | 2016-10-18 | 2016-10-18 | LTE disaster tolerance method and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111065122B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111988808A (en) * | 2019-05-22 | 2020-11-24 | 普天信息技术有限公司 | Core network disaster tolerance backup method and device |
| CN111193637B (en) * | 2019-12-09 | 2022-04-29 | 京信网络系统股份有限公司 | Core network switching method, device, communication system, equipment and storage medium |
| CN115348688A (en) * | 2021-05-14 | 2022-11-15 | 成都鼎桥通信技术有限公司 | Method and equipment for connecting base station and core network equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671107A (en) * | 2004-03-18 | 2005-09-21 | 华为技术有限公司 | A method for monitoring adjacent access networks and links between them |
| CN1984368A (en) * | 2006-05-16 | 2007-06-20 | 华为技术有限公司 | Data-transmitting fault-tolerant method in wireless telecommunication |
| CN103765948A (en) * | 2013-06-21 | 2014-04-30 | 华为技术有限公司 | Method, apparatus and system for selecting mobility management entities |
| CN103812697A (en) * | 2014-01-28 | 2014-05-21 | 大唐移动通信设备有限公司 | Remote disaster recovery method and remote disaster recovery system of distributed communication network |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9491084B2 (en) * | 2004-06-17 | 2016-11-08 | Hewlett Packard Enterprise Development Lp | Monitoring path connectivity between teamed network resources of a computer system and a core network |
| US8787177B2 (en) * | 2008-11-03 | 2014-07-22 | Apple Inc. | Techniques for radio link problem and recovery detection in a wireless communication system |
| CN101730125A (en) * | 2009-06-19 | 2010-06-09 | 中兴通讯股份有限公司 | Method for carrying out node detection between nonadjacent nodes |
| CN101697626A (en) * | 2009-10-30 | 2010-04-21 | 中兴通讯股份有限公司 | Communication fault detection method and system based on two-way forwarding detection protocol |
| US8375245B2 (en) * | 2010-07-15 | 2013-02-12 | Verizon Patent And Licensing Inc. | Mobility management entity failover |
-
2016
- 2016-10-18 CN CN202010066668.1A patent/CN111065122B/en active Active
- 2016-10-18 CN CN201610905029.3A patent/CN106535237B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671107A (en) * | 2004-03-18 | 2005-09-21 | 华为技术有限公司 | A method for monitoring adjacent access networks and links between them |
| CN1984368A (en) * | 2006-05-16 | 2007-06-20 | 华为技术有限公司 | Data-transmitting fault-tolerant method in wireless telecommunication |
| CN103765948A (en) * | 2013-06-21 | 2014-04-30 | 华为技术有限公司 | Method, apparatus and system for selecting mobility management entities |
| CN103812697A (en) * | 2014-01-28 | 2014-05-21 | 大唐移动通信设备有限公司 | Remote disaster recovery method and remote disaster recovery system of distributed communication network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106535237B (en) | 2020-03-27 |
| CN111065122A (en) | 2020-04-24 |
| CN106535237A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220053588A1 (en) | Systems, devices, and methods for connection reestablishment via alternative routes in integrated access and backhaul due to radio link failures | |
| US20220110179A1 (en) | Systems, Devices, and Methods for Handling Radio Link Monitoring and Radio Link Failures in Wireless Relay Networks | |
| EP3565196B1 (en) | Flow control method and apparatus | |
| US11057958B2 (en) | Method and device for establishing/reconfiguring data bearer | |
| US20220039188A1 (en) | Systems, devices, and methods for handling radio link failures in wireless relay networks | |
| US20150138952A1 (en) | Communication system and method for path control | |
| US20220095194A1 (en) | Systems, devices, and methods for handling radio link failures in wireless relay networks | |
| WO2020165275A1 (en) | Efficient backhaul-link failure recovery in integrated access backhaul (iab) networks | |
| CN111065122B (en) | LTE disaster recovery method and system across core network | |
| WO2020003929A1 (en) | Method for managing first access network node, apparatus, generalized node-b, gnb, of 5g network, non-transitory computer-readable medium, computer program product, and data set | |
| WO2020067517A1 (en) | Systems, Devices, and Methods for Handling Radio Link Monitoring and Radio Link Failures in Wireless Relay Networks | |
| US20230262557A1 (en) | Methods and devices for enhancing integrated access backhaul networks for new radio | |
| US8797856B1 (en) | Feedback for machine to machine devices to account for failure of network elements | |
| CN114846904A (en) | Communication method and device | |
| JP2024079777A (en) | Communication Control Method | |
| EP3928561B1 (en) | Failure recovery for multi-ue device | |
| US20150055475A1 (en) | Load control method for wireless communication system and wireless communication system | |
| US20230328607A1 (en) | Communication control method | |
| US20230199879A1 (en) | Methods and devices for enhancing integrated access backhaul networks for new radio | |
| EP3529954B1 (en) | Method and apparatuses for attaching a radio base station to a core network node | |
| CN118402276A (en) | Method for use in migrating resources between integrated access and backhaul topologies | |
| CN109005564B (en) | Method and system for distributing MME (mobility management entity) load | |
| EP4325798A1 (en) | Communication method and apparatus | |
| US12101837B2 (en) | Failure recovery for multi-UE device | |
| WO2024031271A1 (en) | Method of self optimation of fast master cell group recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |