CN114158093A - Communication method, network element, communication system and storage medium - Google Patents
Communication method, network element, communication system and storage medium Download PDFInfo
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- CN114158093A CN114158093A CN202111454179.4A CN202111454179A CN114158093A CN 114158093 A CN114158093 A CN 114158093A CN 202111454179 A CN202111454179 A CN 202111454179A CN 114158093 A CN114158093 A CN 114158093A
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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
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
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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
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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Abstract
The embodiment of the invention discloses a communication method, a network element, a communication system and a storage medium. The method is applied to the network element and comprises the following steps: monitoring access information of a base station through a monitor; selecting a corresponding base station processing process for the access message according to a network capacity and load balancing algorithm; and under the condition that the terminal message is received through the base station processing process, distributing the terminal message to a corresponding service processing process. The technical scheme provided by the embodiment of the invention associates the AMF with the base station and the terminal respectively through the base station processing process and the service processing process, can reasonably distribute the message and ensures the stability under the condition of high concurrency.
Description
Technical Field
The embodiments of the present invention relate to the field of mobile communications technologies, and in particular, to a communication method, a network element, a communication system, and a storage medium.
Background
Access Mobility Management function (AMF), which is one of the control plane key network elements in the 5G core network system architecture defined by the third Generation Partnership Project (3 GPP), is evolved from the Mobility Management node function (MME) in the 4G core network. In a 5G network, the AMF is responsible for access Management and mobility Management of a base station and a User Equipment (UE), and has many interfaces, and the AMF has interfaces with the base station, an Authentication server Function (AUSF), a Session Management Function (SMF), a network storage Function (NRF), and the like. Almost all signaling messages are processed or forwarded through the AMF, and the processing power of the software system is very high when the supported user terminals reach a certain level. The requirement of the 5G core network on large capacity requires that the AMF can support large-capacity users and can stably work in a high-concurrency scene.
In the prior art, in order to enable a 5GC control plane network element to support high capacity and high concurrency, it is common practice to increase the capacity and concurrency by stacking hardware or software systems. Therefore, the structure of the network becomes more complex, the hardware cost or software overhead is increased, and the operation and maintenance of the system become more complex.
Disclosure of Invention
The invention provides a communication method, a network element, a communication system and a storage medium, which are used for improving the stability of communication among the network element, a base station and a terminal.
In a first aspect, an embodiment of the present invention provides a communication method, which is applied to a network element, and the method includes:
monitoring access information of a base station through a monitor;
selecting a corresponding base station processing process for the access message according to a network capacity and load balancing algorithm;
and under the condition that the terminal message is received through the base station processing process, distributing the terminal message to a corresponding service processing process.
In a second aspect, an embodiment of the present invention provides a communication apparatus, including:
the monitoring module is used for monitoring the access information of the base station through the monitor;
a selection module, configured to select a corresponding base station processing procedure for the access message according to a network capacity and a load balancing algorithm;
and the distribution module is used for distributing the terminal message to the corresponding service processing process under the condition that the terminal message is received through the base station processing process.
In a third aspect, an embodiment of the present invention further provides a network element, where the network element includes:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the communication method of the first aspect.
In a fourth aspect, an embodiment of the present invention further provides a communication system, including: a plurality of base stations, a plurality of terminals, and a network element as described in the third aspect;
a plurality of base station processing processes and a plurality of service processing processes are deployed in the network element;
wherein each base station processing process corresponds to at least one base station;
each traffic handling process corresponds to at least one base station handling process.
In a fifth aspect, the present invention further provides a storage medium containing a computer readable program, which when executed by a processor implements the communication method according to the first aspect.
The embodiment of the invention discloses a communication method, a network element, a communication system and a storage medium. The method is applied to the network element and comprises the following steps: monitoring access information of a base station through a monitor; selecting a corresponding base station processing process for the access message according to a network capacity and load balancing algorithm; and under the condition that the terminal message is received through the base station processing process, distributing the terminal message to a corresponding service processing process. The technical scheme provided by the embodiment of the invention associates the AMF with the base station and the terminal respectively through the base station processing process and the service processing process, can reasonably distribute the message and ensures the stability under the condition of high concurrency.
Drawings
Fig. 1 is a flowchart of a communication method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart illustrating monitoring an access message in a communication method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a service processing process identifier in a communication method according to an embodiment of the present invention;
fig. 4 is a block diagram of a communication device according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network element according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a communication system according to a fourth embodiment of the present invention;
fig. 7 is a schematic diagram of an implementation of a communication system according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a communication method according to an embodiment of the present invention, where this embodiment is applicable to a case where a 5G core network performs high-capacity and high-concurrency message processing. As shown in fig. 1, the method specifically includes the following steps:
s110, monitoring the access information of the base station through the monitor.
In this embodiment, the network element mainly refers to an AMF network element, and in a 5G network, the AMF network element is responsible for access and mobility management of a base station and a UE. The AMF Network element has many interfaces, and information can be exchanged with a base station, an Authentication server Function (AUSF), a Session Management Function (SMF), a Network warehousing Function (NRF), and the like. For example, an interface where the base station (gNB) interfaces with the AMF is an N2 interface, a corresponding Protocol is an NG interface Protocol (NGAP), and a Protocol used by a transport layer of the N2 interface is a Stream Control Transmission Protocol (SCTP). Wherein, the listener refers to the listener of the N2 interface.
Specifically, after the user terminal sends the service request to the base station, the base station generates an access message for the base station to communicate with the AMF according to the content of the service request of the user terminal. The AMF listens to access messages of the base station through a Listener (Listener) of the N2 interface. Illustratively, listening to the access message of the base station through the listener may be through a listener based on an N2 interface, performing a four-way SCTP handshake with the base station to establish an SCTP connection.
And S120, selecting a corresponding base station processing process for the access message according to the network capacity and the load balancing algorithm.
In this embodiment, in order to support access of a large number of base stations, it is necessary to deliver the information at the direct network element level of the base station and the AMF to an independent base station processing procedure (gNB processing procedure), and a single base station processing procedure may be responsible for a plurality of base stations. In the step, a corresponding base station processing process is selected for the access message according to the network capacity and the load balancing algorithm. The N2 listener is responsible for uniform distribution, and reasonably configures a base station processing process to be responsible for processing of a plurality of base stations according to the capacity and stability requirements of the current system. All subsequent messages are processed by the selected base station processing procedure.
According to the network capacity and the load balancing algorithm, the load (work task) is balanced and distributed to a plurality of base station processing processes for processing, so that the work task is completed cooperatively, and the load balancing is realized. The load balancing algorithm may adopt a dynamic load balancing algorithm, and determine the allocation of tasks according to the real-time load status information of the base station processing process, such as a minimum connection method, a weighted minimum connection method, and the like. For example, the minimum connection method allocates the task to the base station processing process with the minimum connection number, one base station processing process adds 1 to the connection number after receiving one task, and when the base station processing process fails, the node weight is set to 0, and the base station processing process is not allocated with the task any more. The processing capacity of the base station processing process can be enhanced, and the availability and the flexibility of the base station processing process can be improved.
For example, assuming that the base station process a supports 20W access messages, assuming that the base station process B supports 10W access messages, and assuming that the base station process C supports 5W access messages, if the base station process A, B, C are all in an idle state, the access messages may be allocated to the base station process a with the largest network capacity for processing; if the access messages are processed in the base station processing process A, B, C, the access messages can be distributed to the base station processing processes with relatively less access messages according to a load balancing algorithm, so that the base station processing processes can be balanced, and the processing capacity can be improved.
And S130, distributing the terminal message to a corresponding service processing process under the condition that the terminal message is received through the base station processing process.
The terminal message may specifically be understood as a service request message of a user, and the terminal message may include a UE identifier, service request content, an identifier of a corresponding service processing process, and the like. The service processing process is a core of service processing, and each service processing process is responsible for a certain number of terminal messages, for example, a certain service processing process supports 1W to 5W terminal messages, and 20 processes are required to support 100W terminal messages. By the method, the UE processing capacity of the whole system is improved, and the message can be ensured to be responded in time.
Specifically, after selecting a corresponding base station processing process for the access message, a terminal message may be received through the selected corresponding base station processing process, where the terminal message may carry an identifier of a corresponding service processing process; and distributing the terminal message to the corresponding service processing process according to the identifier so as to facilitate the subsequent service processing process to perform service processing on the terminal message.
The embodiment of the invention discloses a communication method. The method is applied to the network element and comprises the following steps: monitoring access information of a base station through a monitor; selecting a corresponding base station processing process for the access message according to a network capacity and load balancing algorithm; and under the condition that the terminal message is received through the base station processing process, distributing the terminal message to a corresponding service processing process. The technical scheme provided by the embodiment of the invention associates the AMF with the base station and the terminal respectively through the base station processing process and the service processing process, can reasonably distribute the message and ensures the stability under the condition of high concurrency.
As an optional embodiment of the present invention, on the basis of the above embodiment, the step of monitoring the access message of the base station by the listener may be specifically expressed as: a four-way SCTP-based handshake is made with the base station, via a listener based on the N2 interface, to establish an SCTP connection.
Specifically, when the AMF performs a four-way handshake based on SCTP with the base station through the listener of the N2 interface, an SCTP connection is established. And selecting a base station processing process with lighter load for the access message, transferring the SCTP connection to the base station processing process after the base station processing process is selected, and processing all subsequent messages by the base station processing process. Thus, the purpose of load balancing can be achieved.
Fig. 2 is a schematic flow diagram of monitoring an access message in a communication method according to an embodiment of the present invention, as shown in fig. 2, a monitor of an N2 interface monitors a four-way handshake based on stream control transmission protocol SCTP, an SCTP connection is established, after a base station processing procedure is selected, the established SCTP connection is transferred to the selected base station processing procedure, and all subsequent messages are processed by the base station processing procedure, for example, a base station sends an NG establishment request message to the base station processing procedure, the base station processing procedure sends an NG establishment response message to the base station, and other messages between the base station and an AMF.
As an optional embodiment of the present invention, on the basis of the above embodiment, the method further includes: receiving a first registration request message of a terminal through a base station processing process; and selecting one service processing process as a service processing process corresponding to the base station processing process according to the load of the service processing process or based on a round robin algorithm.
Specifically, when the base station processing process receives the first registration request message of the terminal, at this time, a service processing process needs to be selected to correspond to the base station processing process according to the load of the service processing process or based on a round-robin algorithm. When a service processing process is selected, subsequent messages of the terminal should be routed to the process, otherwise, a service processing error may be caused.
For example, assuming that the service processing processes A, B, C all correspond to the base station processing process, and the service processing process a load < the service processing process load < is smaller than the service processing process C load, when the base station processing process receives the first registration request message of the terminal, the service processing process a with the lightest load may be selected as the service processing process corresponding to the base station processing process.
Or, assuming that the service processing processes A, B, C all correspond to the base station processing processes, and when the first registration request message of the terminal is received through the base station processing processes in the first two times, the service processing process A, B is respectively selected as the service processing process corresponding to the base station processing process, when the first registration request message of the terminal is received by the base station processing process, based on the round-robin algorithm, the service processing process C may be selected as the service processing process corresponding to the base station processing process.
As an optional embodiment of the present invention, on the basis of the foregoing embodiment, in a case where a terminal message is received through a base station processing process, distributing the terminal message to a corresponding service processing process includes: acquiring an identifier of a service processing process from a designated bit of an NG application protocol under the condition that a terminal message is received through a base station processing process; and distributing the terminal message to the corresponding service processing progress according to the identifier.
Where NG is the interface between the radio access network and the 5G core network (the 5G core network comprises various network elements, here AMF). In order to realize that the terminal message is distributed to the corresponding service processing process under the condition that the terminal message is received through the base station processing process, the design algorithm is as follows:
fig. 3 is a schematic diagram of a service processing process identifier in a communication method according to an embodiment of the present invention. As shown in fig. 3, according to 3GPP 38.413, AMF UE NGAP, NG application protocol (i.e. NGAP) has a length of 40 bits, and AMF, when allocated, has a height of 8 as an identifier of a service processing process, which can also be understood as an instance ID (i.e. SPID) of the service processing process, to identify the service processing process. Thus, when NGAP message is received subsequently, the base station processing process can resolve SPID from AMF UE NGAP ID, find out the service processing process corresponding to the SPID, and then route to the correct service processing process.
As an optional embodiment of the present invention, on the basis of the above embodiment, the method further includes: starting a plurality of business processing processes, and acquiring the identifier of each business processing process from a database.
Specifically, the identifier is used as a unique identifier to identify the service processing process, and therefore, after a plurality of service processing processes are started, the plurality of unique identifiers need to be acquired from a database, such as Redis, and the identifiers are allocated to the service processing processes, so as to be used for subsequently routing the terminal message to the corresponding correct service processing process. It will be clear that a business process corresponds to a unique identifier.
As an optional embodiment of the present invention, on the basis of the above embodiment, the method further includes: internal messages are transmitted through business process processes and Service Based Interface (SBI) processes.
The internal message refers to a message inside the AMF, that is, a message among a base station processing procedure, a service processing procedure, and an SBI. Interfaces between various network elements of the 5GC are based on a service oriented interface SBI, and take the form of hypertext transfer protocol (HTTP) services.
The internal message carries the identifier of the service processing process, so that the message can be routed to the correct service processing process. The data after the service processing can be provided to other network elements through an SBI interface according to the identifier; and after external data of other network elements can be identified through the SBI process, the external data is converted into internal information to be sent to the service processing process.
Optionally, the SBI process is configured to maintain a hash table of identifiers and International Mobile Subscriber Identities (IMSIs). The method further comprises the following steps: under the condition of receiving the external message, inquiring a hash table according to the IMSI carried in the external message to acquire a corresponding SPID; the external message is routed to the business process according to the SPID.
The identifier in the hash table and the IMSI have a one-to-one correspondence relationship, so that the external messages of other network elements can be identified and converted into the internal messages to the service processing process of the AMF. The SBI process is used to maintain a hash table. The AMF may communicate with other network elements of the 5G core network (i.e., 5GC) such as NRF, AUSF, etc. through the SBI interface. Messages communicated with other network elements all belong to external messages. And when the external message is received, inquiring the hash table according to the IMSI to acquire the SPID, finding the service processing process corresponding to the SPID according to the SPID, and routing the external message to the correct service processing process of the AMF.
As an optional embodiment of the present invention, the base station and AMF direct network element level messages are handed over to an independent base station processing process to be responsible, a single base station processing process is responsible for a plurality of base stations, and a single service processing process can process a plurality of terminal messages, which has the advantages of ensuring that the base stations can be processed in time, and accurately distributing the terminal messages based on identifiers, so that congestion and untimely processing can be avoided when the concurrency is large, the stability of communication among the base stations, the network elements and the terminals is improved, and when one of the base station processing processes is down, other base stations and users are not affected. In addition, the effective distribution and processing of the AMF network element internal message and the external message between the AMF and other network elements can be realized through the SBI process.
Example two
Fig. 4 is a block diagram of a communication device according to a second embodiment of the present invention, where the communication device is suitable for a 5G core network to perform high-capacity and high-concurrency message processing. The apparatus may be implemented by hardware and/or software and is typically integrated in a network element. As shown in fig. 4, the apparatus includes: a monitoring module 21, a selecting module 22 and a distributing module 23.
A monitoring module 21, configured to monitor an access message of a base station through a monitor;
a selection module 22, configured to select a corresponding base station processing procedure for the access message according to the system capacity and the load balancing algorithm;
the distributing module 23 is configured to distribute the terminal message to the corresponding service processing process when the terminal message is received through the base station processing process.
Optionally, the monitoring module 21 is specifically configured to:
performing four-way handshake based on Stream Control Transmission Protocol (SCTP) with the base station through a monitor based on an N2 interface to establish SCTP connection; wherein, the SCTP connection is transferred to the base station processing process after the base station processing process is selected.
Optionally, the apparatus further comprises:
a request message receiving module, configured to receive a first registration request message of a terminal through a base station processing process;
and the service processing process selection module is used for selecting one service processing process as a service processing process corresponding to the base station processing process according to the load of the service processing process or based on a round robin algorithm.
Optionally, the distribution module 23 is specifically configured to:
acquiring an identifier of a service processing process from a designated bit of an NG application protocol under the condition that a terminal message is received through a base station processing process;
and distributing the terminal message to the corresponding service processing progress according to the identifier.
Optionally, the apparatus further comprises: an identifier acquisition module for acquiring the identifier of the mobile terminal,
and the identifier acquisition module is used for starting a plurality of business processing processes and acquiring the identifier of each business processing process from the database.
Optionally, the apparatus further comprises: an internal message transmission module for transmitting the message,
and the internal message transmission module is used for transmitting the internal message through the business processing process and the service-based interface SBI process, wherein the internal message carries the identifier of the business processing process.
Optionally, the SBI process is configured to maintain a hash table of the identifier and the international mobile subscriber identity IMSI;
the device also includes:
the SPID acquisition module is used for inquiring the hash table according to the IMSI carried in the external message under the condition of receiving the external message so as to acquire a corresponding SPID;
and the external message routing module is used for routing the external message to the service processing process according to the SPID.
The device can execute the methods provided by all the embodiments of the invention, and has corresponding functional modules and beneficial effects for executing the methods. For details which are not described in detail in this embodiment, reference is made to all the aforementioned embodiments of the invention.
EXAMPLE III
Fig. 5 is a schematic structural diagram of a network element according to a third embodiment of the present invention, as shown in fig. 5, the network element includes a processor 31, a memory 32, an input device 33, and an output device 34; the number of the processors 31 in the network element may be one or more, and one processor 31 is taken as an example in fig. 5; the processor 31, the memory 32, the input means 33 and the output means 34 in the network element may be connected by a bus or other means, as exemplified by the bus connection in fig. 5.
The memory 32 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as the modules (e.g., the listening module 21, the selecting module 22, and the distributing module 23) corresponding to the communication method in the embodiment of the present application. The processor 31 executes various functional applications and data processing of the network element by executing software programs, instructions and modules stored in the memory 32, that is, implements the above-described communication method.
The memory 32 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 32 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 32 may further include memory located remotely from the processor 31, which may be connected to the electronic device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 33 may be used to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 34 may include a display device such as a display screen.
Example four
Fig. 6 is a schematic structural diagram of a communication system according to a fourth embodiment of the present invention, and as shown in fig. 6, the system includes: a plurality of base stations 1, a plurality of terminals 2, and the network element 3 described in the above embodiments.
A plurality of base station processing processes and a plurality of service processing processes are deployed in the network element 3; wherein each base station processing process corresponds to at least one base station; each traffic handling process corresponds to at least one base station handling process. It should be noted that the network element 3 is mainly referred to as AMF here.
Fig. 7 is a schematic diagram of an implementation of a communication system according to a fourth embodiment of the present invention. As shown in fig. 7, the operation principle of the communication system can be expressed as:
a) firstly, AMF carries out four-way handshake based on stream control transmission protocol SCTP with base station 1 through a monitor based on N2 interface to establish SCTP connection; and the SCTP connection is transferred to the base station processing process after the base station processing process is selected.
b) Secondly, after the AMF starts a plurality of business processing processes, the AMF acquires the identifier of each business processing process from the database. When the AMF receives a first registration request message of the terminal through the base station processing process; and selecting one service processing process as a service processing process corresponding to the base station processing process according to the load of the service processing process or based on a round robin algorithm.
c) When the terminal 2 sends the terminal information, the terminal 2 sends the terminal information to the base station 1, and the base station 1 sends the terminal information to the selected base station processing process. The AMF acquires an identifier of a service processing process from a designated bit of an NG application protocol under the condition that a terminal message is received through a base station processing process; and distributing the terminal message to the corresponding service processing progress according to the identifier. The service processing process processes the terminal message, and can send the processed result to the corresponding base station through the corresponding base station processing process, and the base station receives the processed result and sends the processed result to the terminal 2 according to the terminal identifier.
Optionally, the network element 3 may further be configured with an SBI interface processing procedure, configured to communicate with other network elements, and may provide the data after service processing to other network elements through the SBI interface processing procedure; and after external data of other network elements can be identified through the SBI processing process, the external data is converted into internal information to be sent to the service processing process.
Optionally, The system further includes an external Network element 4, such as an authentication server Function Network element AUSF, a session management Function Network element SMF, a Network warehousing Function Network element NRF, a Policy Control Function Network element (PCF), a Network Slice Selection Function Network element (NSSF), and The like.
The communication system of this embodiment can implement the communication methods provided by all the foregoing embodiments of the present invention, and has functional modules and beneficial effects corresponding to the implementation of the methods. For details which are not described in detail in this embodiment, reference is made to all the aforementioned embodiments of the invention.
EXAMPLE five
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a communication method, the method including:
monitoring access information of a base station through a monitor;
selecting a corresponding base station processing process for the access message according to the network capacity and the load balancing algorithm;
and under the condition that the terminal message is received through the base station processing process, distributing the terminal message to the corresponding service processing process.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the above method operations, and may also perform related operations in the communication method provided in any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling an electronic device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the communication device, the included units and modules are merely divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A communication method applied to a network element, comprising:
monitoring access information of a base station through a monitor;
selecting a corresponding base station processing process for the access message according to a network capacity and load balancing algorithm;
and under the condition that the terminal message is received through the base station processing process, distributing the terminal message to a corresponding service processing process.
2. The method of claim 1, wherein the listening, by the listener, for the access message of the base station comprises:
performing four-way handshake based on Stream Control Transmission Protocol (SCTP) with the base station through a monitor based on an N2 interface to establish SCTP connection; and the SCTP connection is transferred to the base station processing process after the base station processing process is selected.
3. The method of claim 1, further comprising:
receiving a first registration request message of the terminal through the base station processing process;
and selecting one service processing process as a service processing process corresponding to the base station processing process according to the load of the service processing process or based on a round robin algorithm.
4. The method of claim 1, wherein in a case that a terminal message is received through the base station processing process, distributing the terminal message to a corresponding service processing process comprises:
acquiring an identifier of a service processing process from a designated bit of an NG application protocol under the condition that a terminal message is received through the base station processing process;
and distributing the terminal message to a corresponding service processing process according to the identifier.
5. The method of claim 1, further comprising:
starting a plurality of business processing processes, and acquiring the identifier of each business processing process from a database.
6. The method of claim 1, further comprising:
and transmitting an internal message through the business processing process and a service-based interface SBI process, wherein the internal message carries an identifier of the business processing process.
7. The method of claim 6, wherein the SBI process is configured to maintain a hash table of identifiers and international mobile subscriber identities, IMSIs;
the method further comprises the following steps:
under the condition of receiving an external message, inquiring the hash table according to the IMSI carried in the external message to acquire a corresponding SPID;
routing the external message to the business process according to the SPID.
8. A network element, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the communication method of any one of claims 1-7.
9. A communication system, comprising: a plurality of base stations, a plurality of terminals, and the network element of claim 8;
a plurality of base station processing processes and a plurality of service processing processes are deployed in the network element;
wherein each base station processing process corresponds to at least one base station;
each traffic handling process corresponds to at least one base station handling process.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the communication method according to any one of claims 1 to 7.
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