CN113068222A - Load rebalancing processing method, related network equipment and terminal equipment - Google Patents
Load rebalancing processing method, related network equipment and terminal equipment Download PDFInfo
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- CN113068222A CN113068222A CN202010001879.7A CN202010001879A CN113068222A CN 113068222 A CN113068222 A CN 113068222A CN 202010001879 A CN202010001879 A CN 202010001879A CN 113068222 A CN113068222 A CN 113068222A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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Abstract
The embodiment of the invention discloses a load rebalancing processing method, a related network device and a terminal device. The method comprises the following steps: a first access and mobility management function (AMF) sends load rebalancing indication information to a terminal device, wherein the load rebalancing indication information is used for indicating the first AMF load rebalancing.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a load rebalancing processing method, related network equipment and terminal equipment.
Background
Load rebalancing of Access and Mobility Management functions (AMFs) refers to migrating a user to another AMF due to an excessively high AMF load or an impending service withdrawal of an AMF. The current AMF load rebalancing method has the following problems: 1. under the condition that the AMF does not back up, the user is off-line due to the fact that the user context cannot be obtained after the user is migrated to the new AMF; 2. the AMF load rebalancing usually occurs under the condition of AMF load overload, under the condition, a user can be off-line and on-line again, the signaling is doubled, the network load is increased undoubtedly, and the risk of signaling storm is increased; 3. the current AMF load rebalancing is based on a globally unique AMF identifier (GUAMI), namely, all users on the AMF can only be migrated integrally, and the user-level migration is lacked.
Disclosure of Invention
In order to solve the existing technical problem, embodiments of the present invention provide a load rebalancing processing method, and related network device and terminal device.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a load rebalancing processing method, where the method includes:
and the first AMF sends load rebalancing indication information to the terminal equipment, wherein the load rebalancing indication information is used for indicating the load rebalancing of the first AMF.
In the foregoing solution, the sending, by the first AMF, load rebalancing indication information to a terminal device includes:
the first AMF sends a user equipment configuration updating request message to the terminal equipment; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating the first AMF load rebalancing.
In the foregoing solution, the sending, by the first AMF, load rebalancing indication information to a terminal device includes:
and the first AMF sends load rebalancing indication information to the terminal equipment before the user service is finished and the N1 interface is released.
In a second aspect, an embodiment of the present invention further provides a load rebalancing processing method, where the method includes: the terminal equipment receives load rebalancing indication information sent by the first AMF;
the terminal equipment sends a first registration updating request message based on the load rebalancing indication information; the first registration update request message does not carry the AMF identifier.
In the above scheme, the receiving, by the terminal device, the load rebalancing indication information sent by the first AMF includes: the terminal equipment receives a user equipment configuration updating request message sent by the first AMF; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating load rebalancing.
In the foregoing solution, the sending, by the terminal device, the first registration update request message based on the load rebalancing indication information includes: and the terminal equipment sends a first registration updating request message based on the load rebalancing indication information after entering an idle state.
In a third aspect, an embodiment of the present invention further provides a load rebalancing processing method, where the method includes: the access network equipment receives a first registration updating request message sent by the terminal equipment; the first registration updating request message does not carry an AMF identifier;
and the access network equipment selects a second AMF for the terminal equipment and sends a second registration update request message corresponding to the terminal equipment to the second AMF.
In the foregoing solution, the selecting, by the access network device, the second AMF for the terminal device includes: the access network device selects a second AMF for the terminal device within the AMF set.
In a fourth aspect, an embodiment of the present invention further provides a load rebalancing processing method, where the method includes: the second AMF receives a second registration updating request message which is sent by the access network equipment and corresponds to the terminal equipment;
the second AMF obtains context data corresponding to the terminal device from the first AMF.
In a fifth aspect, an embodiment of the present invention further provides an AMF, where the AMF is a first AMF; the AMF comprises a first sending unit, which is used for sending load rebalancing indication information to terminal equipment, wherein the load rebalancing indication information is used for indicating the load rebalancing of the first AMF.
In the foregoing solution, the first sending unit is configured to send a ue configuration update request message to the terminal device; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating the first AMF load rebalancing.
In the foregoing solution, the first sending unit is configured to send the load rebalancing indicator to the terminal device before the user service completes the N1 interface release.
In a sixth aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes: a first receiving unit and a second transmitting unit; wherein the content of the first and second substances,
the first receiving unit is configured to receive load rebalancing indication information sent by a first AMF;
the second sending unit is configured to send a first registration update request message based on the load rebalancing indication information; the first registration update request message does not carry the AMF identifier.
In the foregoing solution, the first receiving unit is configured to receive a ue configuration update request message sent by the first AMF; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating load rebalancing.
In the foregoing solution, the second sending unit is configured to send a first registration update request message based on the load rebalancing indication information after entering an idle state.
In a seventh aspect, an embodiment of the present invention further provides an access network device, where the access network device includes: the device comprises a second receiving unit, a selecting unit and a third sending unit; wherein the content of the first and second substances,
the second receiving unit is used for receiving a first registration updating request message sent by the terminal equipment; the first registration updating request message does not carry an AMF identifier;
the selection unit is used for selecting a second AMF for the terminal equipment;
the third sending unit is configured to send a second registration update request message corresponding to the terminal device to the second AMF.
In the foregoing scheme, the selecting unit is configured to select a second AMF for the terminal device in the AMF set.
In an eighth aspect, an embodiment of the present invention further provides an AMF, where the AMF is a second AMF; the AMF comprises a third receiving unit and an obtaining unit; wherein the content of the first and second substances,
the third receiving unit is configured to receive a second registration update request message corresponding to the terminal device, where the second registration update request message is sent by the access network device;
the obtaining unit is configured to obtain context data corresponding to the terminal device from the first AMF.
In a ninth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to the first, second, third or fourth aspect of the present invention.
In a tenth aspect, an embodiment of the present invention further provides a network device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method in the first aspect, the third aspect, or the fourth aspect of the embodiment of the present invention.
In an eleventh aspect, an embodiment of the present invention further provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method according to the second aspect of the embodiment of the present invention.
In the load rebalancing processing method, the related network device and the terminal device provided by the embodiment of the present invention, the first AMF sends load rebalancing indication information to the terminal device, and the load rebalancing indication information is used for indicating the first AMF to perform load rebalancing; the terminal equipment receives load rebalancing indication information sent by the first AMF; the terminal equipment sends a first registration updating request message based on the load rebalancing indication information; the first registration update request message does not carry the AMF identifier. By adopting the technical scheme of the embodiment of the invention, on one hand, the load rebalancing at the user level is realized, for example, the migration of users of certain specific users or specific user groups or the migration of users of certain Applications (APP) and the like can be realized, so that the migration mode is more flexible, and the application requirements and the network operation and maintenance requirements can be better met; on the other hand, the terminal equipment initiates registration update without carrying AMF identification after receiving the load rebalancing indication information through the sent load rebalancing indication information, thereby carrying out load rebalancing, realizing that the user is not off-line, solving the problem that the user is off-line due to load rebalancing under the condition that the AMF has no backup, and also avoiding the risks of signaling increase, network load increase and even signaling storm.
Drawings
Fig. 1 is a first flowchart illustrating a load rebalancing method according to an embodiment of the present invention;
fig. 2a is a diagram illustrating a ue configuration update request message in the related art;
fig. 2b is a schematic diagram of a ue configuration update request message in the load rebalancing processing method according to the embodiment of the present invention;
fig. 3 is a flowchart illustrating a second method for load rebalancing according to an embodiment of the present invention;
fig. 4 is a third schematic flow chart of the load rebalancing processing method according to the embodiment of the present invention;
fig. 5 is an interaction diagram of a load rebalancing processing method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a component structure of an AMF according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an access network device according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of another embodiment of the AMF of the present invention;
fig. 10 is a schematic diagram of a hardware composition structure of a network device or a terminal device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a load rebalancing processing method. Fig. 1 is a first flowchart illustrating a load rebalancing method according to an embodiment of the present invention; as shown in fig. 1, the method includes:
step 101: and the first AMF sends load rebalancing indication information to the terminal equipment, wherein the load rebalancing indication information is used for indicating the load rebalancing of the first AMF.
In this embodiment, the AMF may receive all connection and Session related information through an N1 interface between the User Equipment (UE) or an N2 interface between the User Equipment (UE) and an access network device (e.g., a base station gNB), and is responsible for processing connection and mobility Management tasks, and all messages related to Session Management are sent to a Session Management Function (SMF) through an N11 interface
In this embodiment, the first AMF is an AMF that needs to migrate a user. For example, the first AMF may be an AMF with an excessive load or going to be withdrawn, or an AMF that needs to migrate a subscriber due to a traffic demand or a network adjustment.
In this embodiment, load rebalancing indication information is sent to the terminal device through the first AMF to inform the terminal device of the first AMF load rebalancing, so that the terminal device initiates registration update after receiving the load rebalancing indication information; and the registration update initiated by the terminal equipment does not carry the AMF identification.
In this embodiment, the first AMF may send load rebalancing indication information to one or more designated terminal devices, where the one or more terminal devices correspond to some or all of the users on the first AMF. As an example, the first AMF may send load rebalancing indication information to the terminal devices corresponding to the users in the user group to migrate the users in the user group. As another example, the first AMF may also send load rebalancing indication information to the terminal device of the user under a certain application to migrate the user under the application.
In an optional embodiment of the present invention, the sending, by the first AMF, load rebalancing indication information to a terminal device includes: the first AMF sends a UE Configuration Update Request (UE Configuration Update Request) message to the terminal equipment; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating the first AMF load rebalancing.
In this embodiment, load rebalancing indication information is sent to a terminal device by a UE Configuration Update Request (UE Configuration Update Request) message, where the UE Configuration Update Request (UE Configuration Update Request) message is a flow between the terminal device and a core network device, and the core network device updates access and mobility parameters of the terminal device.
Fig. 2a is a diagram illustrating a ue configuration update request message in the related art; as shown in fig. 2a, the UE Configuration Update Request (UE Configuration Update Request) message includes 8 bits, and the description of each bit can be referred to as shown in table 1 below. In the byte (octet) composed of 8 bits, the first bit is an acknowledgement (ack) field, the value of this bit is set to 0 to indicate that the request is not acknowledged, and the value of this bit is set to 1 to indicate that the request is acknowledged. The second bit is a Registration Request (RED) field, the value of the bit is set to 0 to indicate that no Registration request is initiated, and the value of the bit is set to 1 to indicate that a Registration request is initiated. The third bit and the fourth bit are spare bits and are coded as 0.
TABLE 1
In the ue configuration update request message in the embodiment of the present invention, defined fields remain unchanged, and for reserved bits (i.e. bits that are not defined), one of the reserved bits (i.e. a specific bit) is used to indicate load rebalancing.
As an example, fig. 2b is a schematic diagram of a ue configuration update request message in the load rebalancing processing method according to the embodiment of the present invention; as shown in fig. 2b, a fourth bit is used to indicate load rebalancing. The description of each bit in this embodiment can be referred to as shown in table 2 below. The difference from the foregoing table 1 is that the fourth bit in this example is a load balancing (load balancing) field, a value of this bit is set to 0 to indicate that load rebalancing is not required, and a value of this bit is set to 1 to indicate load rebalancing. It can be understood that when the value of the fourth bit in the load rebalancing indication information sent by the first AMF to the terminal device is 1, it indicates that load rebalancing is indicated to the terminal device, so that after the terminal device receives the load rebalancing indication information, no parameter update is needed, and only a registration update without an AMF identifier needs to be initiated.
Of course, the specific reserved bit in this embodiment is not limited to the fourth bit, and other reserved bits, such as the third bit, or the fifth bit to the eighth bit (bits representing "configuration update indication IEI", which may be null, and coded as zero) may also be the reserved bits described in this embodiment. That is, in this embodiment, one reserved bit may be selected from the reserved bits as the specific reserved bit, and the first AMF load rebalancing is represented by setting the value of the specific reserved bit as the preset threshold.
TABLE 2
In an optional embodiment of the present invention, the sending, by the first AMF, load rebalancing indication information to a terminal device includes: and the first AMF sends load rebalancing indication information to the terminal equipment before the user service is finished and the N1 interface is released.
In this embodiment, when the network management device triggers the first AMF to migrate a part of users, the first SMF sends the load rebalancing indication information to the terminal device before the current user service completes the N1 interface release.
Based on the foregoing embodiment, the embodiment of the present invention further provides a load rebalancing processing method. Fig. 3 is a flowchart illustrating a second method for load rebalancing according to an embodiment of the present invention; as shown in fig. 3, the method includes:
step 201: the terminal equipment receives load rebalancing indication information sent by the first AMF;
step 202: the terminal equipment sends a first registration updating request message based on the load rebalancing indication information; the first registration update request message does not carry the AMF identifier.
In an optional embodiment of the present invention, the receiving, by the terminal device, load rebalancing indication information sent by the first AMF includes: the terminal equipment receives a user equipment configuration updating request message sent by the first AMF; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating load rebalancing.
The ue configuration update request message described in this embodiment may specifically refer to the detailed description in the foregoing embodiment, and is not described here again.
In this embodiment, after receiving the load rebalancing indication information, the terminal device only needs to initiate a registration update without the AMF identifier, that is, send a first registration update request message without the AMF identifier, without performing any parameter update. Illustratively, if a value of a specific reserved bit in a ue configuration update request message received by a terminal is a preset value, the terminal sends a first registration update request message that does not carry an AMF identifier.
The AMF identifier may be a GUAMI of an Access Stratum (AS) or a 5G service Temporary Mobile Subscriber Identity (5G-S-TMSI, 5G-Serving-Temporary Mobile Subscriber Identity).
In an optional embodiment of the present invention, the sending, by the terminal device, a first registration update request message based on the load rebalancing indication information includes: and the terminal equipment sends a first registration updating request message based on the load rebalancing indication information after entering an Idle state (Idle state).
Based on the foregoing embodiment, the embodiment of the present invention further provides a load rebalancing processing method. Fig. 4 is a third schematic flow chart of the load rebalancing processing method according to the embodiment of the present invention; as shown in fig. 4, the method includes:
step 301: the access network equipment receives a first registration updating request message sent by the terminal equipment; the first registration updating request message does not carry an AMF identifier;
step 302: and the access network equipment selects a second AMF for the terminal equipment and sends a second registration update request message corresponding to the terminal equipment to the second AMF.
The access network device in this embodiment may be a base station, for example, a base station (gNB) in a 5G network, and of course, the type of the access network device is not limited to the above-mentioned base station, and other access network devices may also be within the protection scope of this embodiment.
In this embodiment, the access network device receives the first registration update request message sent by the terminal device, and since the first registration update request message does not carry the AMF identifier, for example, does not carry GUAMI or 5G-S-TMSI, the access network device may reselect a new AMF for the terminal device, which is denoted as a second AMF here.
In an optional embodiment of the present invention, the selecting, by the access network device, the second AMF for the terminal device includes: the access network device selects a second AMF for the terminal device within the AMF set.
In this embodiment, the access network device may select the second AMF for the terminal device based on a load balancing mechanism in the preconfigured AMF set. As an example, the access network device may select the AMF that meets the minimum from within the set of AMFs as the second AMF.
Based on the foregoing embodiment, the embodiment of the present invention further provides a load rebalancing processing method, which is applied to the second AMF. The method comprises the following steps: the second AMF receives a second registration updating request message which is sent by the access network equipment and corresponds to the terminal equipment; the second AMF obtains context data corresponding to the terminal device from the first AMF.
By adopting the technical scheme of the embodiment of the invention, on one hand, the load rebalancing at the user level is realized, for example, the migration of users of certain specific users or specific user groups or the migration of users of certain Applications (APP) and the like can be realized, so that the migration mode is more flexible, and the application requirements and the network operation and maintenance requirements can be better met; on the other hand, the terminal equipment initiates registration update without carrying AMF identification after receiving the load rebalancing indication information through the sent load rebalancing indication information, thereby carrying out load rebalancing, realizing that the user is not off-line, solving the problem that the user is off-line due to load rebalancing under the condition that the AMF has no backup, and also avoiding the risks of signaling increase, network load increase and even signaling storm.
The following describes a load rebalancing processing method according to an embodiment of the present invention with reference to a specific example.
Fig. 5 is an interaction diagram of a load rebalancing processing method according to an embodiment of the present invention; as shown in fig. 5, the system applied by the load rebalancing processing method of the present embodiment may include: UE, gNB, a first AMF (i.e., old AMF) and a second AMF (i.e., new AMF), the method includes:
The Configuration Update indication IEI field (i.e., the fifth bit to the eighth bit) in the UE Configuration Update Request message is null, the RED field is set to 1, the fourth bit (bit4) is set to 1, which indicates that the user does not need to Update any parameter, only needs to perform registration Update, and the sent registration Update Request does not carry 5G-S-TMSI or GUAMI.
And 4, after receiving the registration updating request message, the second AMF acquires the UE context from the first AMF and continues the service normally.
The embodiment of the invention also provides the AMF, and the AMF is the first AMF. FIG. 6 is a schematic diagram of the AMF structure according to an embodiment of the present invention; as shown in fig. 6, the AMF 50 includes a first sending unit 51, configured to send load rebalancing indication information to a terminal device, where the load rebalancing indication information is used to indicate the first AMF load rebalancing.
In an optional embodiment of the present invention, the first sending unit 51 is configured to send a ue configuration update request message to the terminal device; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating the first AMF load rebalancing.
In an optional embodiment of the present invention, the first sending unit 51 is configured to send the load rebalancing indicator to the terminal device before the user service completes the N1 interface release.
In the embodiment of the present invention, the first sending unit 51 in the AMF can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a standardized protocol, etc.) and a transceiver antenna in practical application.
It should be noted that: in the AMF provided in the foregoing embodiment, when performing load rebalancing processing, only the division of each program module is illustrated, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the AMF is divided into different program modules to complete all or part of the processing described above. In addition, the AMF and load rebalancing processing method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
The embodiment of the invention also provides the terminal equipment. Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention; as shown in fig. 7, the terminal device 60 includes: a first receiving unit 61 and a second transmitting unit 62; wherein the content of the first and second substances,
the first receiving unit 61 is configured to receive load rebalancing indication information sent by the first AMF;
the second sending unit 62 is configured to send a first registration update request message based on the load rebalancing indication information; the first registration update request message does not carry the AMF identifier.
In an optional embodiment of the present invention, the first receiving unit 61 is configured to receive a ue configuration update request message sent by the first AMF; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating load rebalancing.
In an optional embodiment of the present invention, the second sending unit 62 is configured to send a first registration update request message based on the load rebalancing indication information after entering an idle state.
In the embodiment of the present invention, the first receiving unit 61 and the second sending unit 62 in the terminal device can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a protocol, and the like) and a transceiver antenna in practical application.
It should be noted that: in the terminal device provided in the foregoing embodiment, when performing load rebalancing processing, only the division of each program module is illustrated, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the terminal device is divided into different program modules to complete all or part of the processing described above. In addition, the terminal device and the load rebalancing method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
The embodiment of the invention also provides access network equipment. Fig. 8 is a schematic structural diagram of an access network device according to an embodiment of the present invention; as shown in fig. 8, the access network device 70 includes: a second receiving unit 71, a selecting unit 72, and a third transmitting unit 73; wherein the content of the first and second substances,
the second receiving unit 71 is configured to receive a first registration update request message sent by a terminal device; the first registration updating request message does not carry an AMF identifier;
the selecting unit 72 is configured to select a second AMF for the terminal device;
the third sending unit 73 is configured to send a second registration update request message corresponding to the terminal device to the second AMF.
In an optional embodiment of the invention, the selecting unit 72 is configured to select a second AMF for the terminal device within the set of AMFs.
In the embodiment of the present invention, the selecting Unit 72 in the access network device may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA) in the terminal in practical application; the second receiving unit 71 and the third sending unit 73 in the access network device may be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a standardized protocol, and the like) and a transceiver antenna in practical application.
It should be noted that: in the foregoing embodiment, when performing the load rebalancing process, the access network device is described by way of example only by dividing the program modules, and in practical applications, the process may be distributed to different program modules according to needs, that is, the internal structure of the access network device is divided into different program modules to complete all or part of the processes described above. In addition, the access network device and the load rebalancing method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
The embodiment of the invention also provides the AMF, and the AMF is a second AMF. FIG. 9 is a schematic diagram of another embodiment of the AMF of the present invention; as shown in fig. 9, the AMF 80 includes a third receiving unit 81 and an obtaining unit 82; wherein the content of the first and second substances,
the third receiving unit 81 is configured to receive a second registration update request message sent by the access network device and corresponding to the terminal device;
the obtaining unit 82 is configured to obtain context data corresponding to the terminal device from the first AMF.
In the embodiment of the present invention, the third receiving unit 81 and the obtaining unit 82 in the AMF can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a standardized protocol, etc.) and a transceiver antenna in practical application.
It should be noted that: in the AMF provided in the foregoing embodiment, when performing load rebalancing processing, only the division of each program module is illustrated, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the AMF is divided into different program modules to complete all or part of the processing described above. In addition, the AMF and load rebalancing processing method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Fig. 10 is a schematic diagram of a hardware component structure of a network device or a terminal device according to an embodiment of the present invention; the network device may be an AMF or an access network device, among others. As shown in fig. 10, the network device or the terminal device includes a memory 92, a processor 91, and a computer program stored on the memory 92 and executable on the processor 91, and when the processor 91 executes the program, the steps of the load rebalancing processing method applied to the AMF, the access network device, or the terminal device according to the embodiments of the present invention are implemented.
Optionally, a network interface 93 may also be included in the network device or the terminal device. The various components in the network device or terminal device are coupled together by a bus system 94. It will be appreciated that the bus system 94 is used to enable communications among the components. The bus system 94 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 94 in fig. 10.
It will be appreciated that the memory 92 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 92 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed in the above embodiments of the present invention may be applied to the processor 91, or implemented by the processor 91. The processor 91 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 91. The processor 91 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 91 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in memory 92, and the processor 91 reads the information in memory 92 and performs the steps of the aforementioned methods in conjunction with its hardware.
In an exemplary embodiment, the network Device or the terminal Device may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.
In an exemplary embodiment, the present invention further provides a computer readable storage medium, such as a memory 92 including a computer program, which can be executed by a processor 91 of a network device or a terminal device to implement the steps of the foregoing method. The computer readable storage medium can be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories.
The computer-readable storage medium provided by the embodiment of the present invention stores thereon a computer program, which when executed by a processor, implements the steps of the load rebalancing processing method applied to the AMF, the access network device, or the terminal device according to the embodiment of the present invention.
The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments.
Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict.
The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (21)
1. A load rebalancing processing method is characterized in that the method comprises the following steps:
and the AMF sends load rebalancing indication information to the terminal equipment, wherein the load rebalancing indication information is used for indicating the load rebalancing of the first AMF.
2. The method of claim 1, wherein the first AMF sends load rebalancing indication information to a terminal device, comprising:
the first AMF sends a user equipment configuration updating request message to the terminal equipment; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating the first AMF load rebalancing.
3. The method of claim 1, wherein the first AMF sends load rebalancing indication information to a terminal device, comprising:
and the first AMF sends load rebalancing indication information to the terminal equipment before the user service is finished and the N1 interface is released.
4. A load rebalancing processing method is characterized in that the method comprises the following steps:
the terminal equipment receives load rebalancing indication information sent by the first AMF;
the terminal equipment sends a first registration updating request message based on the load rebalancing indication information; the first registration update request message does not carry the AMF identifier.
5. The method according to claim 4, wherein the receiving, by the terminal device, the load rebalancing indication information sent by the first AMF comprises:
the terminal equipment receives a user equipment configuration updating request message sent by the first AMF; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating load rebalancing.
6. The method of claim 4, wherein the terminal device sends a first registration update request message based on the load rebalancing indication information, and wherein the sending the first registration update request message comprises:
and the terminal equipment sends a first registration updating request message based on the load rebalancing indication information after entering an idle state.
7. A load rebalancing processing method is characterized in that the method comprises the following steps:
the access network equipment receives a first registration updating request message sent by the terminal equipment; the first registration updating request message does not carry an AMF identifier;
and the access network equipment selects a second AMF for the terminal equipment and sends a second registration update request message corresponding to the terminal equipment to the second AMF.
8. The method of claim 7, wherein the selecting, by the access network device, the second AMF for the terminal device comprises:
the access network device selects a second AMF for the terminal device within the AMF set.
9. A load rebalancing processing method is characterized in that the method comprises the following steps:
the second AMF receives a second registration updating request message which is sent by the access network equipment and corresponds to the terminal equipment;
the second AMF obtains context data corresponding to the terminal device from the first AMF.
10. An AMF, said AMF being a first AMF; the AMF comprises a first sending unit, which is used for sending load rebalancing indication information to a terminal device, wherein the load rebalancing indication information is used for indicating the load rebalancing of the first AMF.
11. The AMF of claim 10, wherein the first sending unit is configured to send a UE configuration update request message to the terminal device; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating the first AMF load rebalancing.
12. The AMF of claim 10, wherein the first sending unit is configured to send the load rebalancing indicator message to the terminal equipment before the user traffic is completed and the N1 interface is released.
13. A terminal device, characterized in that the terminal device comprises: a first receiving unit and a second transmitting unit; wherein the content of the first and second substances,
the first receiving unit is configured to receive load rebalancing indication information sent by a first AMF;
the second sending unit is configured to send a first registration update request message based on the load rebalancing indication information; the first registration update request message does not carry the AMF identifier.
14. The terminal device according to claim 13, wherein the first receiving unit is configured to receive a ue configuration update request message sent by the first AMF; and the user equipment configures a specific reserved bit position in the update request message as a preset value, wherein the reserved bit position set as the preset value is used for indicating load rebalancing.
15. The terminal of claim 13, wherein the second sending unit is configured to send a first registration update request message based on the load rebalancing indication information after entering an idle state.
16. An access network device, characterized in that the access network device comprises: the device comprises a second receiving unit, a selecting unit and a third sending unit; wherein the content of the first and second substances,
the second receiving unit is used for receiving a first registration updating request message sent by the terminal equipment; the first registration updating request message does not carry an AMF identifier;
the selection unit is used for selecting a second AMF for the terminal equipment;
the third sending unit is configured to send a second registration update request message corresponding to the terminal device to the second AMF.
17. The access network device of claim 16, wherein the selecting unit is configured to select a second AMF for the terminal device within the set of AMFs.
18. An AMF, said AMF being a second AMF; wherein the AMF includes a third receiving unit and an obtaining unit; wherein the content of the first and second substances,
the third receiving unit is configured to receive a second registration update request message corresponding to the terminal device, where the second registration update request message is sent by the access network device;
the obtaining unit is configured to obtain context data corresponding to the terminal device from the first AMF.
19. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 3; alternatively, the first and second electrodes may be,
the program when executed by a processor implementing the steps of the method of any one of claims 4 to 6; alternatively, the first and second electrodes may be,
the program when executed by a processor implementing the steps of the method of claim 7 or 8; alternatively, the first and second electrodes may be,
which program, when being executed by a processor, carries out the steps of the method as claimed in claim 9.
20. A network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method of any one of claims 1 to 3 when executing the program; alternatively, the first and second electrodes may be,
the processor, when executing the program, implements the steps of the method of claim 7 or 8; alternatively, the first and second electrodes may be,
the steps of the method of claim 9 are implemented when the program is executed by the processor.
21. A terminal device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 4 to 6 are implemented when the processor executes the program.
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