Access network device, access network method and terminal

Abstract

The embodiments of the present invention provide an access network device, an access network method and a terminal, wherein the access network device comprises: at least three functional entities, wherein a first functional entity, a second functional entity and a third functional entity of the at least three functional entities are respectively connected to each other through an open interface communication and transmit signals. The solution of the present invention improves the flexibility and scalability of the network architecture of the access network device, and the openness of the interface can directly be compatible with multiple implementations of the same functional unit.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an access network device, a network access method and a terminal. Background Art

[0002] The existing access network architecture is as follows Figure 1 As shown in the figure, the overall architecture is divided into centralized and distributed architectures, where CU is a centralized unit and DU is a distributed unit; in terms of functions, such as Figure 2 As shown in the figure, stack processing is adopted, and different protocol layers are defined according to their functions, and they need to be processed layer by layer in sequence. Among them, SDAP is Service Data Adaptation Protocol, i.e., Service Data Adaptation Protocol; PDCP is Packet Data Convergence Protocol, i.e., Packet Data Convergence Protocol; RLC is Radio Link Control, i.e., Radio Link Control layer protocol; MAC is Media Access Control, i.e., Media Access Control; PHY is the physical layer.

[0003] Regarding cloud computing, intelligence, and software, this architecture has the disadvantages of inflexible design and low inherent intelligence support.

[0004] The introduction of cloud virtualization and intelligence has brought new challenges to the access network architecture. How to split the access network functions into those that can work independently and cooperate with each other to improve the autonomy and independence of network functions. In addition, the existing access network adopts a stack structure, and the access network needs to process layer by layer, which will bring processing overhead and interaction overhead between protocol layers. How to improve the efficiency of access network functions and complete the interaction between access network functions in a new way is also a problem that needs to be solved. At the same time, in terms of intelligence, how to design an inherently intelligent access network architecture is also a problem that needs to be considered. Summary of the invention

[0005] The present invention provides an access network device, an access network method and a terminal, which improve the flexibility and scalability of the access network architecture, and the openness of the interface can directly be compatible with multiple implementations of the same functional unit.

[0006] To solve the above technical problems, the embodiments of the present invention provide the following solutions:

[0007] An access network device comprises: at least three functional entities, wherein a first functional entity, a second functional entity and a third functional entity of the at least three functional entities are respectively connected through open interface communication and transmit signals.

[0008] Optionally, the access network device further includes at least one of the following: a fourth functional entity, configured to collect data and / or issue intelligent decisions;

[0009] A fifth functional entity, configured to collect at least one of network status data, service data, control data, operation data, and user behavior data, and establish a model of a real network;

[0010] The fourth functional entity is communicatively connected with the first functional entity, the second functional entity and / or the third functional entity through an open interface;

[0011] The fifth functional entity is communicatively connected with the first functional entity, the second functional entity, the third functional entity and / or the fourth functional entity through an open interface.

[0012] Optionally, the first functional entity is a control plane functional entity, including at least one of the following:

[0013] Cell-level control function, used to configure cell-level system parameters;

[0014] User-level control function, used to control the terminal;

[0015] Qos-level control function, used for QoS-related control;

[0016] Security functions are used to cooperate with the core network for security authentication and data security maintenance;

[0017] Measurement function, used to complete the configuration of cell-level measurement and terminal measurement;

[0018] The scheduling function is used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different service quality QoS data.

[0019] Optionally, the second functional entity is a user plane function, including:

[0020] The sorting and retransmission control function is used to generate corresponding identifiers for data packets when sending data packets according to the feedback of the terminal and the decision of the access network. The identifiers are retransmission or new transmission and the corresponding sequence identifiers; when receiving data, the sequence identifiers are used to sort the data packets;

[0021] The data packet assembly function is used to generate corresponding data packets according to the scheduling results, encryption requirements, and the requirements of the sorting and retransmission functions.

[0022] Optionally, the third functional entity is an air interface transmission plane functional entity, including at least one of the following:

[0023] Physical layer processing functions;

[0024] Media Access Control (MAC) function.

[0025] Optionally, the first functional entity is connected to the transmission channel through a first open interface;

[0026] The second functional entity is connected to the transmission channel via a second open interface;

[0027] The third functional entity is connected to the transmission channel via a third open interface;

[0028] The fourth functional entity is connected to the transmission channel via a fourth open interface;

[0029] The fifth functional entity is connected to the transmission channel via a fifth open interface;

[0030] The transmission channel includes: a logical channel or a proxy entity.

[0031] An embodiment of the present invention further provides a method for accessing a network, which is applied to an access network device, wherein the access network device includes: at least three functional entities, wherein a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected to each other through an open interface communication and transmit signals, and the method includes:

[0032] The first functional entity configures system information for the terminal through the third functional entity;

[0033] According to the access request of the terminal, the first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete the access of the terminal.

[0034] Optionally, the first functional entity configuring system information for the terminal through the third functional entity includes:

[0035] The first functional entity sends a master information block MIB and a system information block SIB to the third functional entity;

[0036] The third functional entity sends the MIB and SIB to the terminal;

[0037] The third functional entity receives an access request sent by the terminal, and sends the access request to the first functional entity; the first functional entity feeds back an access response of the access request to the terminal through the third functional entity according to the access request.

[0038] Optionally, according to the access request of the terminal, the first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete the access of the terminal, including:

[0039] The third functional entity receives a radio resource control RRC connection establishment request message sent by the terminal;

[0040] The third functional entity sends the RRC connection establishment request message to the first functional entity;

[0041] The first functional entity queries the RRC connection configuration through the fourth functional entity and the fifth functional entity, forms RRC air interface signaling, and sends it to the third functional entity;

[0042] The third functional entity sends the RRC air interface signaling to the terminal via the air interface, and passes the configuration of the RRC connection to the second functional entity;

[0043] The first functional entity sends the configuration of the RRC connection to the fourth functional entity and the fifth functional entity respectively, so that the fourth functional entity and the fifth functional entity update the status of the terminal.

[0044] Optionally, the first functional entity queries the RRC connection configuration through the fourth functional entity and the fifth functional entity to form RRC air interface signaling, including:

[0045] The first functional entity queries the fourth functional entity for RRC connection configuration;

[0046] After performing policy verification with the fifth functional entity, the fourth functional entity feeds back the RRC connection configuration to the first functional entity, so that the first functional entity forms RRC air interface signaling.

[0047] Optionally, the method for accessing the network further includes:

[0048] According to the switching command, the first functional entity, the second functional entity, the third functional entity, the fourth functional entity and the fifth functional entity complete the switching of the terminal through the open interface.

[0049] Optionally, according to the switching command, the first functional entity, the second functional entity, the third functional entity, the fourth functional entity, and the fifth functional entity complete the switching of the terminal through an open interface, including:

[0050] After the fourth functional entity and the fifth functional entity verify the switching policy, they send the switching policy to the original first functional entity;

[0051] The original first functional entity sends a switching command to the original third functional entity according to the switching strategy, and the third functional entity sends the switching command to the terminal;

[0052] The target third functional entity receives the handover request of the terminal, and after the handover is completed, sends a handover completion message to the target first functional entity, and the target first functional entity sends the update status information of the terminal to the fourth functional entity;

[0053] The fourth functional entity sends the update status information of the terminal to the fifth functional entity.

[0054] An embodiment of the present invention further provides a terminal, comprising: at least three functional entities, wherein a first functional entity, a second functional entity and a third functional entity of the at least three functional entities are respectively connected through open interface communication and transmit signals.

[0055] Optionally, the terminal further includes at least one of the following:

[0056] The fourth functional entity is used for data collection and / or intelligent decision-making.

[0057] A fifth functional entity, configured to collect at least one of network status data, service data, control data, operation data, and user behavior data, and establish a model of a real network;

[0058] The fourth functional entity is communicatively connected with the first functional entity, the second functional entity and / or the third functional entity through an open interface;

[0059] The fifth functional entity is communicatively connected with the first functional entity, the second functional entity, the third functional entity and / or the fourth functional entity through an open interface.

[0060] Optionally, the first functional entity includes at least one of the following:

[0061] Cell-level control function, used to configure cell-level system parameters;

[0062] User-level control function, used to control the terminal;

[0063] Qos-level control function, used for QoS-related control;

[0064] Security functions are used to cooperate with the core network for security authentication and data security maintenance;

[0065] Measurement function, used to complete the configuration of cell-level measurement and terminal measurement;

[0066] The scheduling function is used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different service quality QoS data.

[0067] An embodiment of the present invention further provides a method for accessing a network, which is applied to a terminal, wherein the terminal includes at least three functional entities, wherein a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected to each other through an open interface communication, and transmit signals, wherein the method includes:

[0068] The first functional entity receives system information configured by the access network device for the terminal through the third functional entity;

[0069] The first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete terminal access.

[0070] Optionally, the first functional entity receiving, through the third functional entity, system information configured by the access network device for the terminal, includes:

[0071] The first functional entity receives a master information block MIB and a system information block SIB sent by an access network device through a third functional entity;

[0072] The first functional entity receives the access response fed back by the access network device through the third functional entity.

[0073] Optionally, the first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete terminal access, including:

[0074] A radio resource control RRC connection establishment request message sent by the third functional entity to the access network device;

[0075] Receiving, through the third functional entity, RRC air interface signaling sent by the access network device;

[0076] Access the access network device according to the RRC air interface signaling.

[0077] An embodiment of the present invention further provides a communication device, comprising: a processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method described above is executed.

[0078] An embodiment of the present invention further provides a computer-readable storage medium, comprising instructions, and when the instructions are executed on a computer, the computer executes the method as described above.

[0079] The above solution of the present invention includes at least the following beneficial effects:

[0080] In the above scheme of the present invention, the access network device includes: at least three functional entities, wherein the first functional entity, the second functional entity and the third functional entity of the at least three functional entities are respectively connected through open interfaces for communication and signal transmission. The access network device also includes at least one of the following: a fourth functional entity for data collection and / or intelligent decision-making; a fifth functional entity for collecting at least one of network status data, service data, control data, operation data and user behavior data to establish a model of a real network; the fourth functional entity is connected through an open interface for communication with the first functional entity, the second functional entity and / or the third functional entity; the fifth functional entity is connected through an open interface for communication with the first functional entity, the second functional entity, the third functional entity and / or the fourth functional entity. The access network device improves the flexibility and scalability of the access network architecture, and the openness of the interface can directly be compatible with multiple implementations of the same functional unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 is a schematic diagram of the access network architecture;

[0082] Figure 2 A schematic diagram of the protocol stack processing process between a terminal and a base station;

[0083] Figure 3 A schematic diagram of the architecture of an access network device or terminal according to an embodiment of the present invention;

[0084] Figure 4 A schematic diagram of the interaction between the functional units of the access network device when the terminal of the present invention accesses the access network device;

[0085] Figure 5 It is a schematic diagram of the terminal switching process of the present invention;

[0086] Figure 6 A schematic diagram of a method for accessing a network on an access network device side of the present invention;

[0087] Figure 7 The present invention is a flowchart of a method for accessing a network on the terminal side. DETAILED DESCRIPTION

[0088] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0089] In order to facilitate the softwareization and intelligence of the access network, the embodiment of the present invention introduces an access network architecture based on plug-and-play. The architecture is oriented to softwareization and intelligence, and is an access network architecture for the purpose of plug-and-play. In order to reduce the communication overhead between the previous protocol layers, a non-stack architecture of the access network is proposed.

[0090] The architecture is based on software-based design ideas and interacts in the form of open interface implementation. By reasonably dividing the protocol stack functions to form multiple functional units, the functional units use open interfaces to achieve plug-and-play of new functional units in the network.

[0091] like Figure 3 As shown, an embodiment of the present invention provides an access network device, comprising: at least three functional entities, wherein a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected through open interface communication and transmit signals. Furthermore, the access network device may also include at least one of the following:

[0092] The fourth functional entity is used for data collection and / or intelligent decision-making.

[0093] A fifth functional entity, configured to collect at least one of network status data, service data, control data, operation data, and user behavior data, and establish a model of a real network;

[0094] The fourth functional entity is communicatively connected with the first functional entity, the second functional entity and / or the third functional entity through an open interface;

[0095] The fifth functional entity is communicatively connected with the first functional entity, the second functional entity, the third functional entity and / or the fourth functional entity through an open interface.

[0096] The first functional entity may be a control plane function (CP) entity, the second functional entity may be a user plane function (UP) entity, the third functional entity may be an air interface transmission plane (TP) functional entity, the fourth functional entity may be an intelligent layer (AIPF), and the fifth functional entity may be a digital twin layer (DTPF);

[0097] The first functional entity, the second functional entity, the third functional entity, the fourth functional entity and the fifth functional entity are respectively connected through open interfaces; in a possible implementation, the open interfaces corresponding to the first functional entity, the second functional entity, the third functional entity, the fourth functional entity and the fifth functional entity are all communicatively connected to the same logical channel, or are all communicatively connected to the same proxy entity, so that any communication between the functional entities can be realized.

[0098] The first functional entity is a control plane functional entity, including at least one of the following:

[0099] Cell-level control function, used to configure cell-level system parameters;

[0100] User-level control function, used to control the terminal;

[0101] Qos-level control function, used for QoS-related control;

[0102] Security functions are used to cooperate with the core network for security authentication and data security maintenance;

[0103] Measurement function, used to complete the configuration of cell-level measurement and terminal measurement;

[0104] The scheduling function is used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different service quality QoS data.

[0105] Specifically, in the above network architecture, for the increasingly complex transmission formats, the impact on the control plane and user plane processing is shielded, and the TP only needs to send the data packets generated by the UP plane according to the transmission requirements determined by the control plane.

[0106] AIP corresponds to the intelligent layer, including data collection and intelligent decision-making.

[0107] DTP is the digital twin layer. It models the business data, control data, and operation data generated by the network, builds a corresponding digital network for the real network, and uses the network to simulate network operation and maintenance, user behavior, and business, thereby coordinating with AIP to transmit better decisions to CP and UP.

[0108] The functions in the above figure can be further subdivided. The control plane functional units include cell-level control, user-level control, QoS control, security, scheduling, and measurement.

[0109] 1. Cell-level control:

[0110] Including system information broadcast, paging, cell-level parameter configuration, etc., generating corresponding parameters according to system requirements (network management configuration or based on AIP policy autonomy).

[0111] 2. User-level control: including RRC connection management, UE status maintenance, mobility control, UE access control, UE-specific physical channel configuration and other UE-related controls.

[0112] 3. QoS level control: including QoS to DRB mapping control, QoS admission control, QoS management and maintenance, etc. QoS management and maintenance can be the corresponding policies issued by the core network, or the policies generated by AIP adaptively according to the existing network status and user needs of the access network.

[0113] 4. Security: Cooperate with the core network to perform security authentication on the base station side and be responsible for the maintenance of secret keys, including the security of signaling and user data.

[0114] 5. Scheduling: According to the cell and user status, as well as the QoS requirements of different QoS data, complete the scheduling based on the QoS of the data packet. Feedback the scheduling results to the data packet assembly function to prepare for subsequent air interface transmission.

[0115] 6. Measurement: Complete the configuration of cell-level measurement and UE measurement, measurement result processing and statistics, etc.

[0116] The above architecture is also applicable to the terminal side. AIPF and DTPF are optional according to the different capabilities of the UE. For high-capability UEs, their own status can be modeled and fed back to the network. For low-capability terminals, the necessary CP, UP and TP functions can be completed.

[0117] In an optional embodiment of the present invention, the second functional entity is a user plane function, including:

[0118] The sorting and retransmission control function is used to generate corresponding identifications for data packets as retransmission or new transmission and corresponding sequence identifications when sending data packets according to the feedback from the terminal and the decision of the access network; when receiving data, the sequence identification is used to sort the data packets;

[0119] The data packet assembly function is used to generate corresponding data packets according to the scheduling results, encryption requirements, and the requirements of the sorting and retransmission functions.

[0120] Specifically, the user plane unit entity includes sequencing and retransmission control, data packet assembly, etc.

[0121] The sorting and retransmission control is: according to the feedback from the terminal and the decision of the access network, when sending a data packet, a corresponding mark is generated for the data packet as retransmission or new transmission and a corresponding sequence mark. When receiving data, the sequence mark is used to sort the data packets.

[0122] In data packet assembly: Generate corresponding data packets according to the scheduling results, encryption requirements, and sorting and retransmission function requirements.

[0123] In an optional embodiment of the present invention, the third functional entity is an air interface transmission plane functional entity, including at least one of the following:

[0124] Physical layer processing function, used to send and receive data packets in the corresponding air interface resources according to the configuration generated by the control plane function and the data packets assembled by the user plane function;

[0125] Media Access Control (MAC) function caches and packages data.

[0126] Optionally, the first functional entity is connected to the transmission channel through a first open interface;

[0127] The second functional entity is connected to the transmission channel via a second open interface;

[0128] The third functional entity is connected to the transmission channel via a third open interface;

[0129] The fourth functional entity is connected to the transmission channel via a fourth open interface;

[0130] The fifth functional entity is connected to the transmission channel via a fifth open interface;

[0131] The transmission channel includes: a logical channel or a proxy entity.

[0132] Here, the first functional entity is connected to the transmission channel via an Infc interface; the Infc interface may be a service-oriented interface of the first functional entity, and its main functions include connecting the first functional entity to external service discovery, control plane link management, control plane configuration, etc.

[0133] The second functional entity is connected to the transmission channel via an Infu interface; Infu is a service-oriented interface of the second functional entity, and its main functions include second functional entity service discovery, data transmission, etc.

[0134] The third functional entity is connected to the transmission channel via an Inft interface; Inft is a service-oriented interface of the third functional entity, and its main functions include second functional entity service discovery, transmission capability and transmission mode configuration, etc.

[0135] The fourth functional entity is connected to the transmission channel through the Infa interface; Infa is the service-oriented interface of the fourth functional entity, and its main functions include fourth functional entity service discovery, training data collection or decision issuance, etc.

[0136] The fifth functional entity is connected to the transmission channel through the Infd interface; Infd is the service-oriented interface of the fifth functional entity, and its main functions include fifth functional entity service discovery, network business data, control data and operation data collection, etc.

[0137] Specifically, the transmission function includes physical layer processing, etc., and the data packets formed by the UP are sent and received on the corresponding air interface resources according to the specified standard according to the transmission configuration generated by the CP.

[0138] The functions of the intelligent layer include collecting necessary data, issuing strategies based on goals, and combining CPF to intelligently manage the network.

[0139] The digital twin layer functions as the digitization of the data of the entire network, abstracting all network status data, user behavior data, and business data into a unified digital network. This layer characterizes the entire network, simulates a set of network operation and maintenance models, user and business models, conducts preliminary verification of AIP strategies, and cooperates with AIP to generate appropriate network operation and maintenance and control strategies.

[0140] Each functional unit uses the interaction mode of open interface. The content that needs to be interacted can be applied to other functional units, or configured by other functional units, or configured through queries. The open interface can interact with one or more functional units, such as interface establishment, assembly and parsing according to interface messages, and support fast interface adaptation after adding new functional units.

[0141] Combine the following Figure 4 An implementation process of the above network device is described: Taking the initial access of UE as an example, the interaction of various functional units is given below;

[0142] 1. The CPF generates MIB and SIB information and sends it to the TPF through the interface, which is then transmitted to the UE through the air interface of the TPF.

[0143] 2. UE sends msg1 message, TPF parses it and notifies CPF, which allocates resources and temporary CRNTI. CPF sends msg2 and corresponding scheduling information to TPF for air interface transmission.

[0144] 3.UE sends RRC establishment request message, which is demodulated by TPF and sent to CPF. CPF queries the appropriate RRC configuration through AIP and DTP, forms RRC air interface signaling, and sends it to TPF. TPF sends it to UE through air interface. At the same time, CPF passes the configuration related to RRC connection establishment to UPF, TPF

[0145] 4. UE replies that RRC establishment is complete. After demodulation, TPF submits the RRC signaling to UPF. UPF unpacks and sends it to CPF to update the UE status to AIP and DTP and record UE information.

[0146] Combine the following Figure 5An implementation process of the above network device is described: Taking the UE handover process as an example, the interaction of various functional units is given below;

[0147] 1. After AIP and DTP verify the switching strategy, they send the switching strategy to the original CP;

[0148] 2. The original CP sends a switching command to the original TP according to the switching strategy, and the TP sends the switching command to the terminal;

[0149] 3. The target TP receives the handover request of the terminal, and after the handover is completed, sends a handover completion message to the target CP, and the target CP sends the updated status information of the terminal to the AIP;

[0150] 4. The AIP sends the updated status information of the terminal to the DTP.

[0151] In the above embodiments of the present invention, each functional entity interacts in the form of an open interface. By reasonably dividing the protocol stack functions to form multiple functional units, the functional units use open interfaces to achieve plug-and-play of newly added functional units in the network.

[0152] like Figure 6 As shown, an embodiment of the present invention further provides a method for accessing a network, which is applied to an access network device, wherein the access network device comprises: at least three functional entities, wherein a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected to each other through an open interface communication, and transmit signals, wherein the method comprises:

[0153] Step 61, the first functional entity configures system information for the terminal through the third functional entity;

[0154] Step 62: According to the access request of the terminal, the first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete the access of the terminal.

[0155] In an optional embodiment of the present invention, step 61 may include:

[0156] The first functional entity sends a master information block MIB and a system information block SIB to the third functional entity;

[0157] The third functional entity sends the MIB and SIB to the terminal;

[0158] The third functional entity receives an access request sent by the terminal, and sends the access request to the first functional entity; the first functional entity feeds back an access response of the access request to the terminal through the third functional entity according to the access request.

[0159] In an optional embodiment of the present invention, step 62 may include:

[0160] The third functional entity receives a radio resource control RRC connection establishment request message sent by the terminal;

[0161] The third functional entity sends the RRC connection establishment request message to the first functional entity;

[0162] The first functional entity queries the RRC connection configuration through the fourth functional entity and the fifth functional entity, forms RRC air interface signaling, and sends it to the third functional entity; optionally, the first functional entity queries the fourth functional entity for the RRC connection configuration; after the fourth functional entity performs policy verification with the fifth functional entity, the RRC connection configuration is fed back to the first functional entity, so that the first functional entity forms the RRC air interface signaling;

[0163] The third functional entity sends the RRC air interface signaling to the terminal via the air interface, and passes the configuration of the RRC connection to the second functional entity;

[0164] The first functional entity sends the configuration of the RRC connection to the fourth functional entity and the fifth functional entity respectively, so that the fourth functional entity and the fifth functional entity update the status of the terminal.

[0165] The specific process of terminal access to network equipment is as above Figure 4 The process shown above Figure 3 and Figure 4 All implementation methods are applicable to the embodiments of the terminal and can achieve the same technical effects.

[0166] In an optional embodiment of the present invention, the method for accessing a network may further include:

[0167] Step 63: According to the switching command, the first functional entity, the second functional entity, the third functional entity, the fourth functional entity and the fifth functional entity complete the switching of the terminal through the open interface.

[0168] Specifically, after the fourth functional entity and the fifth functional entity verify the switching policy, they send the switching policy to the original first functional entity;

[0169] The original first functional entity sends a switching command to the original third functional entity according to the switching strategy, and the third functional entity sends the switching command to the terminal;

[0170] The target third functional entity receives the handover request of the terminal, and after the handover is completed, sends a handover completion message to the target first functional entity, and the target first functional entity sends the update status information of the terminal to the fourth functional entity;

[0171] The fourth functional entity sends the update status information of the terminal to the fifth functional entity.

[0172] In the above embodiment of the present invention, the first functional entity may be a control plane function (CP) entity, the second functional entity may be a user plane function (UP) entity, the third functional entity may be an air interface transmission plane (TP) functional entity, the fourth functional entity may be an intelligent layer (AIPF), and the fifth functional entity may be a digital twin layer (DTPF); each functional entity interacts in the form of an open interface. By reasonably dividing the protocol stack functions to form multiple functional units, the functional units use open interfaces to achieve plug-and-play of newly added functional units in the network.

[0173] An embodiment of the present invention further provides a terminal, comprising: at least three functional entities, wherein a first functional entity, a second functional entity and a third functional entity of the at least three functional entities are respectively connected through open interface communication and transmit signals.

[0174] Furthermore, the terminal further includes at least one of the following:

[0175] The fourth functional entity is used for data collection and / or intelligent decision-making.

[0176] A fifth functional entity, configured to collect at least one of network status data, service data, control data, operation data, and user behavior data, and establish a model of a real network;

[0177] The fourth functional entity is communicatively connected with the first functional entity, the second functional entity and / or the third functional entity through an open interface;

[0178] The fifth functional entity is communicatively connected with the first functional entity, the second functional entity, the third functional entity and / or the fourth functional entity through an open interface.

[0179] Optionally, the first functional entity includes at least one of the following:

[0180] Cell-level control function, used to configure cell-level system parameters;

[0181] User-level control function, used to control the terminal;

[0182] Qos-level control function, used for QoS-related control;

[0183] Security functions are used to cooperate with the core network for security authentication and data security maintenance;

[0184] Measurement function, used to complete the configuration of cell-level measurement and terminal measurement;

[0185] The scheduling function is used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different service quality QoS data.

[0186] In this embodiment, the first functional entity may be a control plane function (CP) entity, the second functional entity may be a user plane function (UP) entity, the third functional entity may be an air interface transmission plane (TP) functional entity, the fourth functional entity may be an intelligent layer (AIPF), and the fifth functional entity may be a digital twin layer (DTPF); depending on the capabilities of the terminal, the intelligent layer AIPF and the digital twin layer DTPF are optional. For high-capability terminals, their own states can be modeled and fed back to the network. For low-capability terminals, the necessary control plane functions (CP), user plane functions (UP) and air interface transmission plane functions (TP) are sufficient. The definitions of the control plane functions, user plane functions, air interface transmission plane functions, intelligent layer and digital twin layer functions in the above-mentioned access network equipment are all applicable to the embodiments of the terminal, and can also achieve the same technical effects.

[0187] like Figure 7 As shown, an embodiment of the present invention further provides a method for accessing a network, which is applied to a terminal, wherein the terminal includes at least three functional entities, wherein a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected to each other through an open interface communication, and transmit signals, wherein the method includes:

[0188] Step 71, the first functional entity receives system information configured by the access network device for the terminal through the third functional entity;

[0189] Step 72: The first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete terminal access.

[0190] In an optional embodiment of the present invention, step 71 may include:

[0191] The first functional entity receives a master information block MIB and a system information block SIB sent by an access network device through a third functional entity;

[0192] The first functional entity receives the access response fed back by the access network device through the third functional entity.

[0193] In an optional embodiment of the present invention, step 72 may include:

[0194] A radio resource control RRC connection establishment request message sent by the third functional entity to the access network device;

[0195] Receiving, through the third functional entity, RRC air interface signaling sent by the access network device;

[0196] Access the access network device according to the RRC air interface signaling.

[0197] In this embodiment, the first functional entity may be a control plane function (CP) entity, the second functional entity may be a user plane function (UP) entity, the third functional entity may be an air interface transmission plane (TP) functional entity, the fourth functional entity may be an intelligent layer (AIPF), and the fifth functional entity may be a digital twin layer (DTPF); depending on the capabilities of the terminal, the intelligent layer AIPF and the digital twin layer DTPF are optional. For high-capability terminals, their own states can be modeled and fed back to the network. For low-capability terminals, it is sufficient to complete the necessary control plane functions (CP), user plane functions (UP) and air interface transmission plane functions (TP). The definitions of the control plane functions, user plane functions, air interface transmission plane functions, intelligent layer and digital twin layer functions in the above-mentioned access network equipment are all applicable to the embodiments of the terminal, and can also achieve the same technical effects. The above-mentioned Figure 4 and Figure 5 The process of the method shown is also applicable to this embodiment and can achieve the same technical effect.

[0198] An embodiment of the present invention further provides a communication device, comprising: a processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method described above is executed. The method of the access network device or the method on the terminal side can be applied to this embodiment and can achieve the same technical effect.

[0199] The embodiment of the present invention further provides a computer-readable storage medium, including instructions, which, when executed on a computer, enable the computer to execute the method described above. The method of the access network device or the method on the terminal side can be applied to this embodiment and can achieve the same technical effect.

[0200] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0201] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0202] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0203] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0204] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0205] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0206] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0207] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general device. Therefore, the purpose of the present invention can also be achieved by simply providing a program product containing a program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order. Some steps can be performed in parallel or independently of each other.

[0208] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An access network device, characterized in that: include: At least three functional entities, wherein a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected to each other through open interface communication and transmit signals; The first functional entity is a control plane function CP entity, the second functional entity is a user plane function UP entity, and the third functional entity is an air interface transmission plane TP functional entity; The first functional entity includes at least one of the following: Cell-level control function, used to configure cell-level system parameters; User-level control function, used to control the terminal; Qos-level control function, used for QoS-related control; Security functions are used to cooperate with the core network for security authentication and data security maintenance; Measurement function, used to complete the configuration of cell-level measurement and terminal measurement; Scheduling function, used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different QoS data; The second functional entity includes: The sorting and retransmission control function is used to generate corresponding identifiers for data packets when sending data packets according to the feedback of the terminal and the decision of the access network. The identifiers are retransmission or new transmission and the corresponding sequence identifiers; when receiving data, the sequence identifiers are used to sort the data packets; The data packet assembly function is used to generate corresponding data packets according to the scheduling results, encryption requirements, and the requirements of the sorting and retransmission functions; The third functional entity includes at least one of the following: Physical layer processing functions; Media Access Control (MAC) function.

2. The access network device according to claim 1, characterized in that: It also includes at least one of the following: a fourth functional entity, used for data collection and / or intelligent decision-making issuance; A fifth functional entity, configured to collect at least one of network status data, service data, control data, operation data, and user behavior data, and establish a model of a real network; The fourth functional entity is communicatively connected with the first functional entity, the second functional entity and / or the third functional entity through an open interface; The fifth functional entity is communicatively connected with the first functional entity, the second functional entity, the third functional entity and / or the fourth functional entity through an open interface.

3. The access network device according to claim 1, characterized in that: The first functional entity is connected to the transmission channel via a first open interface; The second functional entity is connected to the transmission channel via a second open interface; The third functional entity is connected to the transmission channel via a third open interface; The fourth functional entity is connected to the transmission channel through a fourth open interface; The fifth functional entity is connected to the transmission channel via a fifth open interface; The transmission channel includes: a logical channel or a proxy entity.

4. A method for accessing a network, characterized in that: Applied to an access network device, the access network device includes: at least three functional entities, a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected through open interface communication and transmit signals, the method includes: The first functional entity configures system information for the terminal through the third functional entity; According to the access request of the terminal, the first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete the access of the terminal; The first functional entity is a control plane function CP entity, the second functional entity is a user plane function UP entity, and the third functional entity is an air interface transmission plane TP functional entity; The first functional entity includes at least one of the following: Cell-level control function, used to configure cell-level system parameters; User-level control function, used to control the terminal; Qos-level control function, used for QoS-related control; Security functions are used to cooperate with the core network for security authentication and data security maintenance; Measurement function, used to complete the configuration of cell-level measurement and terminal measurement; Scheduling function, used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different QoS data; The second functional entity includes: The sorting and retransmission control function is used to generate corresponding identifiers for data packets when sending data packets according to the feedback of the terminal and the decision of the access network. The identifiers are retransmission or new transmission and the corresponding sequence identifiers; when receiving data, the sequence identifiers are used to sort the data packets; The data packet assembly function is used to generate corresponding data packets according to the scheduling results, encryption requirements, and the requirements of the sorting and retransmission functions; The third functional entity includes at least one of the following: Physical layer processing functions; Media Access Control (MAC) function.

5. The method for accessing a network according to claim 4, characterized in that: The first functional entity configures system information for the terminal through the third functional entity, including: The first functional entity sends a master information block MIB and a system information block SIB to the third functional entity; The third functional entity sends the MIB and SIB to the terminal; The third functional entity receives an access request sent by the terminal, and sends the access request to the first functional entity; the first functional entity feeds back an access response of the access request to the terminal through the third functional entity according to the access request.

6. The method for accessing a network according to claim 4, characterized in that: According to the access request of the terminal, the first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete the access of the terminal, including: The third functional entity receives a radio resource control RRC connection establishment request message sent by the terminal; The third functional entity sends the RRC connection establishment request message to the first functional entity; The first functional entity queries the RRC connection configuration through the fourth functional entity and the fifth functional entity, forms RRC air interface signaling, and sends it to the third functional entity; The third functional entity sends the RRC air interface signaling to the terminal via the air interface, and passes the configuration of the RRC connection to the second functional entity; The first functional entity sends the configuration of the RRC connection to the fourth functional entity and the fifth functional entity respectively, so that the fourth functional entity and the fifth functional entity update the status of the terminal.

7. The method for accessing a network according to claim 6, characterized in that: The first functional entity queries the RRC connection configuration through the fourth functional entity and the fifth functional entity to form RRC air interface signaling, including: The first functional entity queries the fourth functional entity for RRC connection configuration; After performing policy verification with the fifth functional entity, the fourth functional entity feeds back the RRC connection configuration to the first functional entity, so that the first functional entity forms RRC air interface signaling.

8. The method for accessing a network according to claim 6, characterized in that: Also includes: According to the switching command, the first functional entity, the second functional entity, the third functional entity, the fourth functional entity and the fifth functional entity complete the switching of the terminal through the open interface.

9. The method for accessing a network according to claim 8, characterized in that: According to the switching command, the first functional entity, the second functional entity, the third functional entity, the fourth functional entity, and the fifth functional entity complete the switching of the terminal through the open interface, including: After the fourth functional entity and the fifth functional entity verify the switching policy, they send the switching policy to the original first functional entity; The original first functional entity sends a switching command to the original third functional entity according to the switching strategy, and the third functional entity sends the switching command to the terminal; The target third functional entity receives the handover request of the terminal, and after the handover is completed, sends a handover completion message to the target first functional entity, and the target first functional entity sends the update status information of the terminal to the fourth functional entity; The fourth functional entity sends the update status information of the terminal to the fifth functional entity.

10. A terminal, characterized in that: include: At least three functional entities, wherein a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected to each other through open interface communication and transmit signals; The first functional entity is a control plane function CP entity, the second functional entity is a user plane function UP entity, and the third functional entity is an air interface transmission plane TP functional entity; The first functional entity includes at least one of the following: Cell-level control function, used to configure cell-level system parameters; User-level control function, used to control the terminal; Qos-level control function, used for QoS-related control; Security functions are used to cooperate with the core network for security authentication and data security maintenance; Measurement function, used to complete the configuration of cell-level measurement and terminal measurement; Scheduling function, used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different QoS data; The second functional entity includes: The sorting and retransmission control function is used to generate corresponding identifiers for data packets when sending data packets according to the feedback of the terminal and the decision of the access network. The identifiers are retransmission or new transmission and the corresponding sequence identifiers; when receiving data, the sequence identifiers are used to sort the data packets; The data packet assembly function is used to generate corresponding data packets according to the scheduling results, encryption requirements, and the requirements of the sorting and retransmission functions; The third functional entity includes at least one of the following: Physical layer processing functions; Media Access Control (MAC) function.

11. The terminal according to claim 10, characterized in that: Also includes at least one of the following: The fourth functional entity is used for data collection and / or intelligent decision-making. A fifth functional entity, configured to collect at least one of network status data, service data, control data, operation data, and user behavior data, and establish a model of a real network; The fourth functional entity is communicatively connected with the first functional entity, the second functional entity and / or the third functional entity through an open interface; The fifth functional entity is communicatively connected with the first functional entity, the second functional entity, the third functional entity and / or the fourth functional entity through an open interface.

12. A method for accessing a network, characterized in that: Applied to a terminal, the terminal includes at least three functional entities, a first functional entity, a second functional entity, and a third functional entity of the at least three functional entities are respectively connected through open interface communication and transmit signals, the method includes: The first functional entity receives the system information configured by the access network device for the terminal through the third functional entity; The first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete terminal access; The first functional entity is a control plane function CP entity, the second functional entity is a user plane function UP entity, and the third functional entity is an air interface transmission plane TP functional entity; The first functional entity includes at least one of the following: Cell-level control function, used to configure cell-level system parameters; User-level control function, used to control the terminal; Qos-level control function, used for QoS-related control; Security functions are used to cooperate with the core network for security authentication and data security maintenance; Measurement function, used to complete the configuration of cell-level measurement and terminal measurement; Scheduling function, used to complete the scheduling based on data packet QoS according to the status of the cell and the terminal, as well as the QoS requirements of different QoS data; The second functional entity includes: The sorting and retransmission control function is used to generate corresponding identifiers for data packets when sending data packets according to the feedback of the terminal and the decision of the access network. The identifiers are retransmission or new transmission and the corresponding sequence identifiers; when receiving data, the sequence identifiers are used to sort the data packets; The data packet assembly function is used to generate corresponding data packets according to the scheduling results, encryption requirements, and the requirements of the sorting and retransmission functions; The third functional entity includes at least one of the following: Physical layer processing functions; Media Access Control (MAC) function.

13. The method for accessing a network according to claim 12, characterized in that: The first functional entity receives, through the third functional entity, system information configured by the access network device for the terminal, including: The first functional entity receives a master information block MIB and a system information block SIB sent by an access network device through a third functional entity; The first functional entity receives the access response fed back by the access network device through the third functional entity.

14. The method for accessing a network according to claim 12, characterized in that: The first functional entity, the second functional entity, and the third functional entity interact through an open interface to complete terminal access, including: A radio resource control RRC connection establishment request message sent by the third functional entity to the access network device; Receiving, through the third functional entity, RRC air interface signaling sent by the access network device; Access the access network device according to the RRC air interface signaling.

15. A communication device, characterized in that: include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 4 to 9 or any one of claims 12 to 14 is performed.

16. A computer-readable storage medium, characterized in that: The method comprises instructions which, when executed on a computer, cause the computer to execute the method according to any one of claims 4 to 9 or any one of claims 12 to 14.

Images