CN111436055B - Radio access network central unit and communication method - Google Patents
Radio access network central unit and communication method Download PDFInfo
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/18—Service support devices; Network management devices
Abstract
The invention provides a wireless access network central unit and a communication method, which belong to the technical field of wireless communication, wherein the wireless access network central unit comprises: a central unit functional layer comprising: at least one functional module; a central unit capability open layer coupled to the functional layer, comprising: the client triggers at least one functional module in the at least one functional module to operate through the functional interface. By introducing the central unit capacity open layer into the central unit of the wireless access network, the functional capacities of the CUs can be decoupled, a uniform external capacity exposure service anchor point is provided, flexible data acquisition and configuration can be supported, and the method is more efficient and flexible.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a central unit of a wireless access network and a communication method.
Background
In the prior art, a Central Unit (CU) of a radio access network is mainly managed by a network management layer configuration interface for operation, maintenance and configuration, related interfaces mainly depend on CU manufacturers for implementation and definition, and the CU has insufficient open support capability. In addition, CU's data acquisition is generally performed through a network management layer and a soft and hard acquisition interface, and data acquisition contents cannot be flexibly configured.
With the technical push of CU Function decoupling and Network Function Virtualization (NFV), a plurality of separated functional entities can appear inside a CU, and these entities can be implemented by software from different vendors. Conventional CU management interfaces that are highly dependent on a single CU vendor implementation, as well as data acquisition and configuration, become inflexible. To handle more CU capability opening requirements and more flexible multi-vendor CU deployment and CU NFV implementations, the CU capability opening part also needs to be decoupled from the CU internal functional entities.
Disclosure of Invention
In view of this, the present invention provides a radio access network central unit and a communication method, which are used to solve the problems that the current CU has poor capacity of opening to the outside, cannot meet the requirement of opening more capacities, and cannot support more flexible data acquisition and configuration.
In order to solve the above technical problem, in a first aspect, the present invention provides a radio access network center unit, including:
a central unit functional layer comprising: at least one functional module;
a central unit capability open layer coupled to the functional layer, comprising: the client triggers at least one functional module in the at least one functional module to operate through the functional interface.
Preferably, the at least one functional module comprises at least one of: the system comprises a control plane protocol function module, a user plane protocol function module, a wireless resource management function module and an operation and maintenance management function module.
Preferably, the capability opening layer further includes: a northbound interface request processing functional unit;
the northbound interface request processing functional unit is used for receiving a request sent by the client through the functional interface; triggering a functional module in the functional layer corresponding to the functional interface, or triggering the functional module in the functional layer corresponding to the functional interface and other functional units in the capability open layer to operate; and sending the reply information of the request to the client through the functional interface.
Preferably, the capability opening layer further includes: the northbound interface requests the conflict coordination functional unit and/or the authority management functional unit;
the north interface request conflict coordination unit is used for storing conflict strategies in the request; performing conflict verification according to the conflict strategy;
the authority management function unit is used for storing the authority management configuration information in the request; and performing authority verification according to the authority management configuration information.
Preferably, the capability opening layer further includes: an authentication interface, the authentication interface comprising: a conflict policy issuing interface and/or a permission management configuration interface;
the client sends a request containing the conflict policy through the conflict policy issuing interface;
and the client sends a request containing the authority management configuration information through the authority management configuration interface.
Preferably, the conflict policy includes: a list of collision detection interfaces and a handling policy.
Preferably, the rights management configuration information includes: a rights management list, the rights management list comprising: each of the at least one functional interface and an identity of a client having a right to invoke the functional interface.
Preferably, the capability opening layer includes: the northbound interface request conflict coordination functional unit and the authority management functional unit;
the northbound interface request processing functional unit is used for receiving the request sent by the client through the functional interface and sending the request to the authority management functional unit;
the authority management functional unit is used for judging whether the client has the calling authority of the called functional interface or not according to the identity of the client; if the client has the calling authority, the request is sent to the northbound interface request conflict coordination function unit;
the northbound interface request conflict coordination functional unit is used for carrying out conflict verification on the request according to the called functional interface; and triggering the functional module corresponding to the called functional interface in the functional layer to run according to the request passing the verification.
Preferably, the operation and maintenance management function module includes at least one of: the system comprises a data acquisition submodule, a data reporting submodule, a log management submodule, a configuration management submodule and a monitoring management submodule;
the at least one functional interface comprises at least one of:
the system comprises a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a wireless resource management algorithm issuing interface and a wireless resource management strategy issuing interface;
the northbound interface request processing functional unit is used for receiving data acquisition task configuration information and data reporting task configuration information which are sent by the client through the data acquisition task configuration interface; sending the data acquisition task configuration information to the data acquisition submodule, and triggering the data acquisition reporting submodule to acquire data; sending the data reporting task configuration information to the data reporting submodule, and triggering the data reporting submodule to report the acquired data; and/or the presence of a gas in the gas,
receiving a request sent by the client through the command issuing interface; triggering a functional module corresponding to the identifier in the functional layer to operate according to the identifier of the call command in the request, and sending the parameter of the call command in the request to the functional module corresponding to the identifier; and/or the presence of a gas in the gas,
receiving parameter configuration information sent by the client through the parameter configuration management interface; sending the parameter configuration information to the configuration management submodule, and triggering the configuration management submodule to update parameters according to the parameter configuration information; and/or the presence of a gas in the gas,
receiving the radio resource management algorithm software sent by the client through the radio resource management algorithm issuing interface; sending the radio resource management algorithm software to the radio resource management function module, and triggering the radio resource management function module to update the algorithm software; and/or the presence of a gas in the gas,
receiving a radio resource management strategy sent by the client through the radio resource management strategy issuing interface; and sending the radio resource management strategy to the radio resource management function module, and triggering the radio resource management function module to update the algorithm strategy.
Preferably, the client comprises a network layer and/or a near real-time wireless intelligent controller.
In a second aspect, the present invention further provides a communication method, which is applied to the foregoing radio access network center unit, where the communication method includes:
receiving a request sent by a client through a functional interface in a central unit capacity open layer;
and triggering at least one functional module in the functional layers of the central unit to operate according to the request.
Preferably, the at least one functional module comprises at least one of: the system comprises a control plane protocol function module, a user plane protocol function module, a wireless resource management function module and an operation and maintenance management function module.
Preferably, the capability opening layer further includes: a northbound interface request processing functional unit;
the step of triggering the operation of at least one functional module in the functional layers of the central unit according to the request comprises the following steps:
triggering a functional module in the functional layer corresponding to the functional interface, or triggering the functional module in the functional layer corresponding to the functional interface and other functional units in the capability open layer to operate;
the communication method further comprises:
and sending the reply information of the request to the client through the functional interface.
Preferably, the capability opening layer further includes: the northbound interface requests a conflict coordination functional unit and/or a permission management functional unit;
the communication method further comprises:
storing the conflict policy in the request; performing conflict verification according to the conflict strategy; and/or the presence of a gas in the gas,
storing the authority management configuration information in the request; and performing authority verification according to the authority management configuration information.
Preferably, the capability opening layer further includes: an authentication interface, the authentication interface comprising: a conflict policy issuing interface and/or a permission management configuration interface;
the client sends a request containing the conflict policy through the conflict policy issuing interface;
and the client sends a request containing the authority management configuration information through the authority management configuration interface.
Preferably, the conflict policy includes: a list of collision detection interfaces and a handling policy.
Preferably, the rights management configuration information includes: a rights management list, the rights management list comprising: each of the at least one functional interface and an identity of a client having a right to invoke the functional interface.
Preferably, the capability opening layer includes: the northbound interface request conflict coordination functional unit and the authority management functional unit;
the communication method further comprises:
receiving a request sent by the client through the functional interface;
judging whether the client has the calling authority of the called functional interface or not according to the identity of the client; if the client has the calling authority, performing conflict verification on the request according to the called functional interface; and triggering the functional module corresponding to the called functional interface in the functional layer to run according to the request passing the verification.
Preferably, the operation and maintenance management function module includes at least one of: the system comprises a data acquisition submodule, a data reporting submodule, a log management submodule, a configuration management submodule and a monitoring management submodule;
the at least one functional interface comprises at least one of:
the system comprises a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a wireless resource management algorithm issuing interface and a wireless resource management strategy issuing interface;
the receiving client side sends a request through a functional interface in a central unit capacity open layer; the step of triggering the operation of at least one functional module in the functional layers of the central unit according to the request comprises:
receiving data acquisition task configuration information and data reporting task configuration information sent by the client through the data acquisition task configuration interface; sending the data acquisition task configuration information to the data acquisition submodule and triggering the data acquisition reporting submodule to acquire data; sending the configuration information of the data reporting task to the data reporting submodule and triggering the data reporting submodule to report the acquired data; and/or the presence of a gas in the gas,
receiving a request sent by the client through the command issuing interface; triggering a functional module corresponding to the identifier in the functional layer to operate according to the identifier of the call command in the request, and sending the parameter of the call command in the request to the functional module corresponding to the identifier; and/or the presence of a gas in the gas,
receiving parameter configuration information sent by the client through the parameter configuration management interface; sending the parameter configuration information to the configuration management submodule, and triggering the configuration management submodule to update parameters according to the parameter configuration information; and/or the presence of a gas in the gas,
receiving the radio resource management algorithm software sent by the client through the radio resource management algorithm issuing interface; sending the radio resource management algorithm software to the radio resource management function module, and triggering the radio resource management function module to update the algorithm software; and/or the presence of a gas in the gas,
receiving a radio resource management strategy sent by the client through the radio resource management strategy issuing interface; and sending the radio resource management strategy to the radio resource management function module, and triggering the radio resource management function module to update the algorithm strategy.
Preferably, the client comprises a network layer and/or a near real-time wireless intelligent controller.
The technical scheme of the invention has the following beneficial effects:
in the embodiment of the invention, the central unit capacity open layer is introduced into the central unit of the wireless access network, so that the functional capacities of the CUs can be decoupled, a uniform external capacity exposure service anchor point is provided, flexible data acquisition and configuration can be supported, and the method is more efficient and flexible.
Drawings
Fig. 1 is a schematic structural diagram of a radio access network center unit according to a first embodiment of the present invention;
FIG. 2 is a communication structure diagram according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of communication between a client and a central unit of a radio access network according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a communication method according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio access network center unit according to a first embodiment of the present invention, where the radio access network center unit 10 includes:
a central unit functional layer 11 comprising: at least one functional module;
a central unit capability opening layer 12 connected to the functional layer, comprising: the client triggers at least one functional module in the at least one functional module to operate through the functional interface.
The wireless access network central unit provided by the embodiment of the invention can decouple each functional capability of a CU, provide a uniform external capability exposure service anchor point, support flexible data acquisition and configuration and be more efficient and flexible by introducing the central unit capability open layer.
In an embodiment of the present invention, the functional Interface may be an Application Programming Interface (API).
In the embodiment of the present invention, the client includes a network layer and/or a near-real-time radio intelligent controller (near-RT RIC).
Wherein, the network management layer includes: network Management System (NMS), Open Network Automation Platform (ONAP), Management and organization (MANO), or non-real-time radio intelligent controller (non-RT RIC).
In some preferred embodiments of the invention, the at least one functional module comprises at least one of: a Control Plane (CP) protocol function module, a User Plane (UP) protocol function module, a Radio Resource Management (RRM) function module, and an operation and maintenance (O & M) function module.
Specifically, the control plane protocol function module, the user plane protocol function module, the Radio resource management function module, and the operation and maintenance management function module are CU-related function modules defined in a New Radio (NR) interface of 5G at present.
Wherein, the operation and maintenance management function module comprises at least one of the following modules: the system comprises a data acquisition sub-module, a data reporting sub-module, a log management sub-module, a configuration management sub-module and a monitoring management sub-module.
In some preferred embodiments of the present invention, the capability opening layer further comprises: a northbound interface request processing functional unit;
the northbound interface request processing functional unit is used for receiving a request sent by the client through the functional interface; triggering a functional module in the functional layer corresponding to the functional interface, or triggering the functional module in the functional layer corresponding to the functional interface and other functional units in the capability open layer to operate; and sending the reply information of the request to the client through the functional interface.
In a simple aspect, the northbound interface request processing functional unit is configured to receive and analyze a request sent by the client through the functional interface, and trigger a functional module in the corresponding functional layer, or the functional module in the corresponding functional layer and another functional unit in the capability open layer to operate; and sending the requested reply information to the client.
Preferably, the capability opening layer further includes: the northbound interface requests the conflict coordination functional unit and/or the authority management functional unit;
the north interface request conflict coordination unit is used for storing conflict strategies in the request; performing conflict verification according to the conflict strategy;
the authority management functional unit is used for storing the authority management configuration information in the request; and performing authority verification according to the authority management configuration information.
That is, the request sent by the client through the functional interface may include a conflict policy, and after receiving and analyzing the request, the northbound interface request processing functional unit triggers the northbound interface request conflict coordination unit to store the conflict policy, and perform conflict verification according to the conflict policy.
The request sent by the client through the functional interface can also comprise authority management configuration information, and after the northbound interface request processing functional unit receives and analyzes the request, the northbound interface request processing functional unit triggers the authority management functional unit to store the authority management configuration information and carries out authority verification according to the authority management configuration information.
Of course, in some other embodiments of the present invention, the northbound interface requests the conflict coordination unit to perform conflict verification according to the currently stored conflict policy if the request does not include the conflict policy.
That is, the client does not include the conflict policy in the request sent through the functional interface, and the northbound interface requests the conflict coordination unit to perform conflict verification according to the currently stored conflict policy.
In other embodiments of the present invention, the right management function unit is configured to perform right verification according to currently stored right management configuration information when the request does not include the right management configuration information.
That is, the request sent by the client through the functional interface does not include the rights management configuration information, and the rights management functional unit performs rights verification according to the currently stored rights management configuration information.
Preferably, the capability opening layer further includes: an authentication interface, the authentication interface comprising: a conflict policy issuing interface and/or a permission management configuration interface;
the client sends a request containing the conflict strategy through the conflict strategy issuing interface;
and the client sends a request containing the authority management configuration information through the authority management configuration interface.
Specifically, the client sends a request containing a conflict policy through a conflict policy issuing interface; and the northbound interface request processing functional unit receives the request, sends the request to the northbound interface request conflict coordination functional unit, and triggers the northbound interface request conflict coordination functional unit to update the conflict strategy.
The client sends a request containing the authority management configuration information through the authority management configuration interface; the northbound interface request processing functional unit receives the request; and sending the authority management configuration information to the authority management functional unit, and triggering the authority management functional unit to update the authority management configuration information.
Preferably, the capability opening layer includes: the northbound interface request conflict coordination functional unit and the authority management functional unit;
the northbound interface request processing functional unit is used for receiving the request sent by the client through the functional interface and sending the request to the authority management functional unit;
the authority management functional unit is used for judging whether the client has the calling authority of the called functional interface or not according to the identity of the client; if the client has the calling authority, the request is sent to the northbound interface request conflict coordination function unit;
the northbound interface request conflict coordination functional unit is used for carrying out conflict verification on the request according to the called functional interface; and triggering the functional module corresponding to the called functional interface in the functional layer to run according to the request passing the verification.
Specifically, before a functional module in the functional layer of the central unit corresponding to the functional interface is called, the following process is further included:
(1) identity authentication
After receiving a request sent by a client through a functional interface, the northbound interface request processing functional unit firstly sends the request to the authority management functional unit, and the authority management functional unit authenticates the identity of the client.
(2) Authority validation
And the authority management functional unit judges whether the client has the calling authority of the called functional interface according to the identity of the client. For example: and judging whether the client has the calling authority of the called functional interface or not according to the authority management configuration information.
(3) Conflict verification
If the client has the calling authority, the authority management unit performs conflict verification on the request, and the functional module in the functional layer is triggered to run only if the verification is passed.
In some preferred embodiments of the present invention, the rights management configuration information includes: a rights management list, the rights management list comprising: each of the at least one functional interface and an identity of a client having a right to invoke the functional interface.
Preferably, the authority management function unit is configured to determine whether the client has a call authority of the called functional interface according to the identity of the client and the authority management list.
For example, there are 2 clients: client M and client N, the open layer of central unit ability has 3 functional interfaces in total: functional interface 1, functional interface 2 and functional interface 3. The client with the authority to call the functional interface 1 is the client M, the clients with the authority to call the functional interface 2 are the client M and the client N, and the clients with the authority to call the functional interface 3 are the client N, that is, the client M has the authority to call the functional interface 1 and the functional interface 2, and the client N has the authority to call the functional interface 2 and the functional interface 3.
Therefore, unified authentication and management of related authority of the client side of the calling interface can be supported.
As the demand for wireless Edge Computing and controlling is gradually rising, not only the Network layer is used as the capability consumer of the CU, but also a Radio Access Network (RAN) Edge controller and a Mobile Edge Computing (MEC) may become the capability consumer of the CU, so as to perform acquisition and control management of related data. Thus, multi-consumer capability call conflicts are also a problem for CU capability openness requirement resolution.
Thus, in some preferred embodiments of the invention, the conflict policy comprises: a list of collision detection interfaces and a handling policy.
Wherein, the conflict policy may include: a conflict policy identification number (ID), a list of conflict detection interfaces, and a processing policy. For example: under conflict policy ID 1, the list of conflict detection interfaces includes: the functional interface 1 and the functional interface 2, i.e. the functional interface 1 and the functional interface 2, may conflict with each other, and the processing policy is to reject the request sent through the functional interface 2 and process the request sent through the functional interface 1.
Taking table 1 as an example, under the conflict policy a, the RRM load balancing algorithm issuing interface and the RRM capacity optimization algorithm issuing interface may conflict with each other for 2 interfaces, and the processing policy is to reject all requests sent through the 2 interfaces when the RRM energy saving algorithm is enabled.
TABLE 1
Preferably, the northbound interface requests a conflict coordination function unit, configured to determine whether the called functional interface is in the conflict detection interface list; if the called interface is not in the conflict detection list, or the called interface is in the conflict detection list, and the processing policy is not to reject the request sent by the called interface, determining that the request passes the conflict verification; and if the called interface is in the conflict detection list and the processing strategy is to reject the request sent by the called interface, judging that the request is not subjected to conflict verification.
Therefore, the embodiment of the invention can support external multi-party calling and can carry out unified conflict coordination processing, namely, conflict coordination of different functional modules caused by external calling can be supported.
For example, under conflict policy ID 2, the list of conflict detection interfaces includes: the functional interfaces 5, 6 and 7, i.e. the functional interfaces 5-7, may conflict, and the processing policy is to reject requests sent through the functional interfaces 5 and 6 and process requests sent through the functional interfaces 7.
If the client sends the request through the functional interface 3, the functional interface 3 is not in the conflict detection interface list, and the request sent through the functional interface 3 is judged to pass the conflict verification.
If the client sends the request through the functional interface 6, the functional interface 6 is in the collision detection interface list, and the processing policy is to reject the request sent through the functional interface 6, the request sent through the functional interface 6 does not pass the collision verification.
If the client sends a request through the functional interface 7, the functional interface 7 is in the collision detection interface list, and the processing policy is to process (i.e., not reject) the request sent through the functional interface 7, the request sent through the functional interface 7 passes the collision verification.
In some preferred embodiments of the invention, the at least one functional interface comprises at least one of:
the system comprises a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a wireless resource management algorithm issuing interface and a wireless resource management strategy issuing interface;
the northbound interface request processing functional unit is used for receiving data acquisition task configuration information and data reporting task configuration information which are sent by the client through the data acquisition task configuration interface; sending the data acquisition task configuration information to the data acquisition submodule, and triggering the data acquisition reporting submodule to acquire data; sending the data reporting task configuration information to the data reporting submodule, and triggering the data reporting submodule to report the acquired data; and/or the presence of a gas in the gas,
receiving a request sent by the client through the command issuing interface; triggering a functional module corresponding to the identifier in the functional layer to operate according to the identifier of the call command in the request, and sending the parameter of the call command in the request to the functional module corresponding to the identifier; and/or the presence of a gas in the gas,
receiving parameter configuration information sent by the client through the parameter configuration management interface; sending the parameter configuration information to the configuration management submodule, and triggering the configuration management submodule to update parameters according to the parameter configuration information; and/or the presence of a gas in the gas,
receiving the radio resource management algorithm software sent by the client through the radio resource management algorithm issuing interface; sending the radio resource management algorithm software to the radio resource management function module, and triggering the radio resource management function module to update the algorithm software; and/or the presence of a gas in the gas,
receiving a radio resource management strategy sent by the client through the radio resource management strategy issuing interface; and sending the radio resource management strategy to the radio resource management function module, and triggering the radio resource management function module to update the algorithm strategy.
Specifically, the client sends a request through a functional interface, and triggers a functional module in a functional layer of the central unit corresponding to the functional interface to operate.
The client sends requests through each functional interface, and the triggered functional modules correspond to the following:
1) data acquisition task configuration interface: a corresponding data acquisition submodule and a data reporting submodule.
2) A command issuing interface: and the functional module corresponding to the identifier of the call command in the request in the corresponding functional layer.
3) Parameter configuration management interface: and correspondingly configuring a management submodule.
4) The radio resource management algorithm issues an interface: corresponding to the radio resource management function module.
5) The radio resource management strategy issues an interface: corresponding to the radio resource management function module.
In some embodiments of the present invention, each functional interface and/or each verification interface in the central unit capability exposure layer may be a physical interface.
For example, the capability open layer of the central unit includes 5 functional interfaces, namely a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a radio resource management algorithm issuing interface and a radio resource management policy issuing interface, and 2 verification interfaces, namely a conflict policy issuing interface and a permission management configuration interface, and each functional interface and each verification interface are entity interfaces.
In some embodiments of the present invention, the central unit capability openness layer may include a preset number of entity interfaces, and each entity interface is capable of performing a function of at least one function interface and/or at least one verification interface.
For example, the central unit capability open layer includes 7 physical interfaces, which are 5 functional interfaces: a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a radio resource management algorithm issuing interface, a radio resource management strategy issuing interface, and 2 verification interfaces: the system comprises a conflict strategy issuing interface and a permission management configuration interface, wherein each entity interface respectively executes the function of the interface.
For another example: the central unit capacity open layer comprises 1 entity interface, which can execute the functions of 5 functional interfaces of a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a radio resource management algorithm issuing interface and a radio resource management strategy issuing interface, and 2 verification interfaces of a conflict strategy issuing interface and a permission management configuration interface.
The following steps are repeated: the capability open layer of the central unit comprises 3 entity interfaces, wherein the interface 1 can perform the function of a data acquisition task configuration interface, the interface 2 can perform the functions of a radio resource management algorithm issuing interface and a radio resource management strategy issuing interface, and the interface 3 can perform the functions of 2 verification interfaces, namely a conflict strategy issuing interface and a permission management configuration interface.
The radio access network central unit of the embodiment of the invention can not only separate the external functional interfaces, but also expand the functional interfaces, namely, a new functional interface can be added in the central unit capacity open layer, or a new function can be added in the functional interface in the central unit capacity open layer. Is more flexible and convenient, and does not influence the function of the bottom layer.
Referring to fig. 2, fig. 2 is a schematic diagram of a communication structure according to an embodiment of the present invention. As shown in fig. 2, the wireless access network system includes a client 21 and a wireless access network center unit 22, wherein the wireless access network center unit 22 includes: a central unit functional layer 221 and a central unit capacity opening layer 222 coupled to the central unit functional layer 221. The central unit function layer 221 includes: a control plane protocol function 2211, a user plane protocol function 2212, a radio resource management function 2213, and an operation and maintenance management function 2214. The central unit capability opening layer 222 includes a function interface 2221, that is, the central unit capability opening layer 222 can support configuration, management and invocation of related function modules in the central unit function layer 221, and provide a related northbound interface (i.e., the function interface 2221) to the outside. The client 21 is connected to the radio access network central unit 22 through the functional interface 2221, and the client 21 triggers one or more functional modules in the central unit functional layer 221 to operate through the functional interface 2221.
Referring to fig. 3, fig. 3 is a schematic flowchart illustrating a communication between a client and a central unit of a radio access network according to an embodiment of the present invention. The communication flow of the client and the wireless access network central unit comprises the following steps:
the first step is as follows: the client sends a request through the functional interface.
The client may send the request through an API of the central capability exposure layer.
The second step is that: the central unit capability open layer carries out identity authentication, permission confirmation and conflict verification, and carries out function mapping aiming at the request which is sent by the client with the calling function interface permission and passes the conflict verification.
That is, the central unit capacity open layer includes: the authority management functional unit and the northbound interface request conflict coordination functional unit. The authority management function unit carries out identity authentication on the client terminal for calling the function interface and confirms whether the client terminal has the calling authority of the called function interface or not according to the identity of the client terminal; and if the client has the calling authority, sending the request to the northbound interface request conflict coordination function unit. The northbound interface request conflict coordination function unit performs conflict verification on the request according to the function interface called by the client; for the verified request, the request sent by the client may be mapped to a function call request for triggering the corresponding function module in the functional layer of the central unit to operate, and sent to the corresponding function module, and the corresponding function module is triggered to operate, for example: and carrying out operations such as data acquisition, parameter configuration management, command issuing and the like.
The third step: and the corresponding functional module in the functional layer of the central unit operates, generates reply information corresponding to the request and returns the reply information to the capacity open layer of the central unit.
The corresponding function module may generate and transmit a function call reply message corresponding to the request.
The fourth step: the central unit capacity open layer receives reply information of the request sent by the corresponding functional module and sends the reply information to the client through the functional interface.
And the central unit capacity open layer generates reply information of the API request according to the received function call reply information and sends the reply information to the client through the API interface.
Next, a procedure of communication between the client and the radio access network center unit according to an embodiment of the present invention is specifically described.
Application scenario one
Step 1.1: the near-real-time wireless intelligent controller sends a request through a data acquisition task configuration interface.
Step 1.2: and the central unit capacity open layer performs identity authentication, permission confirmation, conflict verification and function mapping on the near-real-time wireless intelligent controller for calling the data acquisition task configuration interface.
Step 1.3: the central unit capacity open layer transmits data acquisition task configuration information to the data acquisition submodule and triggers an acquisition task of the data acquisition submodule, such as: data acquisition such as Packet Data Convergence Protocol (PDCP) buffer, channel quality, etc.; and meanwhile, the central unit capacity open layer issues the configuration information of the data acquisition task to the data reporting submodule, the data reporting submodule acquires data according to the acquisition task and reports the acquired data to the near-real-time wireless intelligent controller according to the configuration of the data acquisition task.
Step 1.4: and the near-real-time wireless intelligent controller estimates and predicts the air interface capability according to the reported PDCP buffer, and provides related information to an application service layer so as to realize service related rate optimization.
Application scenario two
Step 2.1: the network management layer (NMS/ONAP/MANO/Non-RT RIC) sends the request through the data collection task configuration interface.
Step 2.2: and the central unit capacity open layer performs identity authentication, permission confirmation, conflict verification and function mapping on the network management layer calling the data acquisition task configuration interface.
Step 2.3: the central unit capacity open layer transmits data acquisition task configuration information to the data acquisition submodule in the central unit function layer, and triggers the acquisition task of the data acquisition submodule, such as: cell level/user level load, for example: data acquisition such as Physical Resource Block (PRB) occupancy, CCE occupancy, Evolved Radio Access Bearer (E-RAB) throughput, cell handover parameters, and the like; and meanwhile, the central unit capacity open layer issues the configuration information of the data acquisition task to the data reporting submodule, the data reporting submodule acquires data according to the acquisition task and reports the acquired data to the network management layer according to the configuration of the data acquisition task.
Step 2.4: and the network management layer predicts the cell load according to the reported data and optimizes the load balancing strategy to obtain the optimized switching parameter configuration information.
Step 2.5: and the network management layer sends the optimized switching parameter configuration information through the configuration management interface.
Step 2.6: the central unit capability open layer transmits the optimized switching parameter configuration information to a configuration management submodule in a central unit function layer, and triggers the configuration management submodule to update related Radio Resource Control (RRC) switching parameters.
Based on the same inventive concept, the present invention further provides a communication method, please refer to fig. 4, where fig. 4 is a schematic flow chart of the communication method according to the second embodiment of the present invention, and the method is applied to the radio access network central unit according to the first embodiment of the present invention, and includes the following steps:
step 41: receiving a request sent by a client through a functional interface in a central unit capacity open layer;
step 42: and triggering at least one functional module in the functional layers of the central unit to operate according to the request.
In the embodiment of the invention, the wireless access network central unit comprises a central unit capacity open layer, can decouple each functional capacity of a CU, provides a uniform external capacity exposure service anchor point, can support flexible data acquisition and configuration, and is more efficient and flexible.
Preferably, the at least one functional module comprises at least one of: the system comprises a control plane protocol function module, a user plane protocol function module, a wireless resource management function module and an operation and maintenance management function module.
Preferably, the capability opening layer further includes: a northbound interface request processing functional unit;
the step of triggering the operation of at least one functional module in the functional layers of the central unit according to the request comprises the following steps:
triggering a functional module in the functional layer corresponding to the functional interface, or triggering the functional module in the functional layer corresponding to the functional interface and other functional units in the capability open layer to operate;
the communication method further comprises:
and sending the reply information of the request to the client through the functional interface.
Preferably, the capacity openness layer further includes: the northbound interface requests the conflict coordination functional unit and/or the authority management functional unit;
the communication method further comprises:
storing the conflict policy in the request; performing conflict verification according to the conflict strategy; and/or the presence of a gas in the gas,
storing the authority management configuration information in the request; and performing authority verification according to the authority management configuration information.
Preferably, the capability opening layer further includes: a verification interface, the verification interface comprising: a conflict policy issuing interface and/or a permission management configuration interface;
the client sends a request containing the conflict policy through the conflict policy issuing interface;
and the client sends a request containing the authority management configuration information through the authority management configuration interface.
Preferably, the conflict policy includes: a list of collision detection interfaces and a handling policy.
Preferably, the rights management configuration information includes: a rights management list, the rights management list comprising: each of the at least one functional interface and an identity of a client having a right to invoke the functional interface.
Preferably, the capacity open layer includes: the northbound interface request conflict coordination functional unit and the authority management functional unit;
the communication method further comprises:
receiving a request sent by the client through the functional interface;
judging whether the client has the calling authority of the called functional interface or not according to the identity of the client; if the client has the calling authority, performing conflict verification on the request according to the called functional interface; and triggering the functional module corresponding to the called functional interface in the functional layer to run according to the request passing the verification.
Preferably, the operation and maintenance management function module includes at least one of: the system comprises a data acquisition submodule, a data reporting submodule, a log management submodule, a configuration management submodule and a monitoring management submodule;
the at least one functional interface comprises at least one of:
the system comprises a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a wireless resource management algorithm issuing interface and a wireless resource management strategy issuing interface;
the receiving client side sends a request through a functional interface in a central unit capacity open layer; the step of triggering the operation of at least one functional module in the functional layers of the central unit according to the request comprises:
receiving data acquisition task configuration information and data reporting task configuration information sent by the client through the data acquisition task configuration interface; sending the data acquisition task configuration information to the data acquisition submodule, and triggering the data acquisition reporting submodule to acquire data; sending the data reporting task configuration information to the data reporting submodule, and triggering the data reporting submodule to report the acquired data; and/or the presence of a gas in the gas,
receiving a request sent by the client through the command issuing interface; triggering a functional module corresponding to the identifier in the functional layer to operate according to the identifier of the call command in the request, and sending the parameter of the call command in the request to the functional module corresponding to the identifier; and/or the presence of a gas in the atmosphere,
receiving parameter configuration information sent by the client through the parameter configuration management interface; sending the parameter configuration information to the configuration management submodule, and triggering the configuration management submodule to update parameters according to the parameter configuration information; and/or the presence of a gas in the gas,
receiving the radio resource management algorithm software sent by the client through the radio resource management algorithm issuing interface; sending the radio resource management algorithm software to the radio resource management function module, and triggering the radio resource management function module to update the algorithm software; and/or the presence of a gas in the gas,
receiving a radio resource management strategy sent by the client through the radio resource management strategy issuing interface; and sending the radio resource management strategy to the radio resource management function module, and triggering the radio resource management function module to update the algorithm strategy.
Preferably, the client comprises a network layer and/or a near real-time wireless intelligent controller.
The specific working process is the same as that in the first corresponding embodiment, and therefore, detailed description is not repeated here, and please refer to the description in the first corresponding embodiment.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A radio access network center unit, comprising:
a central unit functional layer comprising: at least one functional module;
a central unit capacity open layer coupled to the central unit functional layer, comprising: the client triggers at least one functional module in the at least one functional module to operate through the functional interface;
the capability openness layer further comprises: a northbound interface request processing functional unit;
the northbound interface request processing functional unit is used for receiving a request sent by the client through the functional interface; triggering a functional module in the central unit functional layer corresponding to the functional interface, or triggering a functional module in the central unit functional layer corresponding to the functional interface and other functional units in the capability open layer to operate; sending reply information of the request to the client through the functional interface;
the functional interface comprises at least one of:
the system comprises a data acquisition task configuration interface, a command issuing interface, a parameter configuration management interface, a wireless resource management algorithm issuing interface and a wireless resource management strategy issuing interface.
2. The hub unit of claim 1, wherein said at least one functional module comprises at least one of: the system comprises a control plane protocol function module, a user plane protocol function module, a wireless resource management function module and an operation and maintenance management function module.
3. The center unit according to claim 1,
the capability openness layer further comprises: the northbound interface requests a conflict coordination functional unit and/or a permission management functional unit;
the northbound interface request conflict coordination function unit is used for storing conflict strategies in the request; performing conflict verification according to the conflict strategy;
the authority management functional unit is used for storing the authority management configuration information in the request; and performing authority verification according to the authority management configuration information.
4. The center unit according to claim 3,
the capability openness layer further comprises: an authentication interface, the authentication interface comprising: a conflict policy issuing interface and/or a permission management configuration interface;
the client sends a request containing the conflict policy through the conflict policy issuing interface;
and the client sends a request containing the authority management configuration information through the authority management configuration interface.
5. The center unit according to claim 3 or claim 4,
the conflict policy includes: a list of collision detection interfaces and a handling policy.
6. The hub unit of claim 3 or claim 4, wherein the rights management configuration information comprises: a rights management list, the rights management list comprising: each of the at least one functional interface and an identity of a client having a right to invoke the functional interface.
7. The center unit according to claim 3,
the capability opening layer comprises: the northbound interface request conflict coordination functional unit and the authority management functional unit;
the northbound interface request processing functional unit is used for receiving the request sent by the client through the functional interface and sending the request to the authority management functional unit;
the authority management functional unit is used for judging whether the client has the calling authority of the called functional interface or not according to the identity of the client; if the client has the calling authority, the request is sent to the northbound interface request conflict coordination function unit;
the northbound interface request conflict coordination functional unit is used for carrying out conflict verification on the request according to the called functional interface; and triggering the functional module corresponding to the called functional interface in the functional layer of the central unit to operate according to the request passing the verification.
8. The center unit according to claim 2,
the operation and maintenance management function module comprises at least one of the following modules: the system comprises a data acquisition sub-module, a data reporting sub-module, a log management sub-module, a configuration management sub-module and a monitoring management sub-module;
the northbound interface request processing functional unit is used for receiving data acquisition task configuration information and data reporting task configuration information which are sent by the client through the data acquisition task configuration interface; sending the data acquisition task configuration information to the data acquisition submodule, and triggering the data acquisition reporting submodule to acquire data; sending the data reporting task configuration information to the data reporting submodule, and triggering the data reporting submodule to report the acquired data; and/or the presence of a gas in the gas,
receiving a request sent by the client through the command issuing interface; triggering a functional module corresponding to the identifier in the central unit functional layer to operate according to the identifier of the calling command in the request, and sending the parameter of the calling command in the request to the functional module corresponding to the identifier; and/or the presence of a gas in the gas,
receiving parameter configuration information sent by the client through the parameter configuration management interface; sending the parameter configuration information to the configuration management submodule, and triggering the configuration management submodule to update parameters according to the parameter configuration information; and/or the presence of a gas in the atmosphere,
receiving the radio resource management algorithm software sent by the client through the radio resource management algorithm issuing interface; sending the radio resource management algorithm software to the radio resource management function module, and triggering the radio resource management function module to update the algorithm software; and/or the presence of a gas in the gas,
receiving a radio resource management strategy sent by the client through the radio resource management strategy issuing interface; and sending the radio resource management strategy to the radio resource management function module, and triggering the radio resource management function module to update the algorithm strategy.
9. The central unit according to claim 1, characterized in that the client comprises a network layer and/or a near real-time wireless intelligent controller.
10. A communication method applied to the radio access network center unit according to any one of claims 1 to 9, comprising:
receiving a request sent by a client through a functional interface in a central unit capacity open layer;
and triggering at least one functional module in the functional layers of the central unit to operate according to the request.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924746A (en) * | 2009-06-11 | 2010-12-22 | 中兴通讯股份有限公司 | Location processing method, repeated address processing method and device |
| KR20130019310A (en) * | 2011-08-16 | 2013-02-26 | 주식회사 케이티 | Software lte(long term evolution) base station based open hardware platform |
| CN103229527A (en) * | 2012-12-31 | 2013-07-31 | 华为技术有限公司 | Communication system, capability open gateway and method for opening wireless-pipeline capability |
| CN103392353A (en) * | 2012-12-31 | 2013-11-13 | 华为技术有限公司 | Wireless network capacity open system, gateway, agent and method |
| CN105516979A (en) * | 2015-12-04 | 2016-04-20 | 南京航空航天大学 | Mobile network information acquisition and opening method and system |
| CN107135516A (en) * | 2017-06-29 | 2017-09-05 | 努比亚技术有限公司 | A kind of parameter testing processing method, mobile terminal and computer-readable recording medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312660B (en) * | 2012-03-06 | 2016-06-22 | 中兴通讯股份有限公司 | A kind of service implementation method based on ability open platform and ability open platform |
| US10761896B2 (en) * | 2017-02-22 | 2020-09-01 | Cisco Technology, Inc. | System and method of lightweight decentralized NFV orchestration |
-
2019
- 2019-01-11 CN CN201910028248.1A patent/CN111436055B/en active Active
-
2020
- 2020-01-10 WO PCT/CN2020/071489 patent/WO2020143785A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924746A (en) * | 2009-06-11 | 2010-12-22 | 中兴通讯股份有限公司 | Location processing method, repeated address processing method and device |
| KR20130019310A (en) * | 2011-08-16 | 2013-02-26 | 주식회사 케이티 | Software lte(long term evolution) base station based open hardware platform |
| CN103229527A (en) * | 2012-12-31 | 2013-07-31 | 华为技术有限公司 | Communication system, capability open gateway and method for opening wireless-pipeline capability |
| CN103392353A (en) * | 2012-12-31 | 2013-11-13 | 华为技术有限公司 | Wireless network capacity open system, gateway, agent and method |
| CN105516979A (en) * | 2015-12-04 | 2016-04-20 | 南京航空航天大学 | Mobile network information acquisition and opening method and system |
| CN107135516A (en) * | 2017-06-29 | 2017-09-05 | 努比亚技术有限公司 | A kind of parameter testing processing method, mobile terminal and computer-readable recording medium |
Non-Patent Citations (1)
| Title |
|---|
| R2-162570:Analysis on Fronthaul Split Options;CATT;《3GPP》;20160415;全文 * |
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