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WO2024027260A1 - Procédé et dispositif de communication, terminal et support de stockage - Google Patents

Procédé et dispositif de communication, terminal et support de stockage Download PDF

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Publication number
WO2024027260A1
WO2024027260A1 PCT/CN2023/093286 CN2023093286W WO2024027260A1 WO 2024027260 A1 WO2024027260 A1 WO 2024027260A1 CN 2023093286 W CN2023093286 W CN 2023093286W WO 2024027260 A1 WO2024027260 A1 WO 2024027260A1
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WO
WIPO (PCT)
Prior art keywords
terminal
access
layer
communication
mac layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/093286
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English (en)
Chinese (zh)
Inventor
李阅薄
王荣
郑惠文
胡成冈
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ZTE Corp
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ZTE Corp
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Publication of WO2024027260A1 publication Critical patent/WO2024027260A1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the embodiments of the present application relate to the field of communication technology, and in particular, to a communication method, terminal, communication device and storage medium.
  • Embodiments of the present application provide a communication method, terminal, communication device and storage medium.
  • embodiments of the present application provide a communication method that is applied to a terminal with an identity.
  • the terminal includes a terminal bottom layer and a terminal high layer.
  • a protocol conversion interface is configured between the terminal bottom layer and the terminal high layer.
  • the protocol conversion interface is located in the MAC layer, and the method includes: based on the first access technology, the terminal accesses the network device at the bottom layer, and generates first communication information corresponding to the first access technology; through the A protocol conversion interface converts the first communication information into second communication information corresponding to the second access technology, and transmits the second communication information to the terminal high layer; according to the second communication information, the The upper layer of the terminal performs terminal access processing or transmission data processing.
  • inventions of the present application provide a communication method applied to network equipment.
  • the network equipment includes a high-level network equipment and at least one bottom-level access point. There is a configuration between the bottom-level access equipment and the high-level network equipment.
  • the communication method includes: based on the first access technology, accessing the terminal to the underlying access point and generating a message corresponding to the first access point. First communication information of the access technology; convert the first communication information into second communication information corresponding to the second access technology through the protocol conversion interface, and transmit the second communication information to the A high-level network device; according to the second communication information, the high-level network device performs terminal access processing or data transmission processing.
  • inventions of the present application provide a communication method applied to a network device system.
  • the network device system includes at least one network device.
  • the network device executes the communication method described in the second aspect.
  • the method It also includes: configuring the underlying access point of at least one network device into at least one cell; broadcasting in the cell so that Therefore, terminals within the cell range can receive the broadcast information carried in the broadcast.
  • inventions of the present application provide a terminal.
  • the terminal is configured with a protocol conversion interface, a protocol stack and an identity identifier.
  • the protocol conversion interface is configured in the MAC layer, so that the terminal forms a first MAC layer and a third MAC layer.
  • Two MAC layers the first MAC layer is used to provide the terminal with access based on the first access technology, and the protocol stack is used to provide the second MAC layer with a protocol corresponding to the second access technology. configuration.
  • embodiments of the present application provide a communication device, including: at least one processor; at least one memory for storing at least one program; when at least one of the programs is executed by at least one of the processors, the following steps are implemented: The communication method described in the first aspect, the second aspect or the third aspect.
  • embodiments of the present application provide a computer-readable storage medium, including: the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to execute the first aspect and the second aspect. or the communication method described in the third aspect.
  • Figure 1 is a schematic diagram of multi-terminal access based on multiple access technologies in related technologies
  • Figure 2(a) is a schematic diagram of the 5G standard control plane protocol in related technologies
  • Figure 2(b) is a schematic diagram of the 5G standard user plane protocol in related technologies
  • Figure 3(a) is a schematic diagram of the control plane of the 5G-based generalized access system provided by the embodiment of the present application;
  • Figure 3(b) is a schematic diagram of the user plane of the 5G-based generalized access system provided by the embodiment of the present application;
  • Figure 4 is a schematic diagram of the position of the protocol conversion interface in the protocol stack provided by the embodiment of the present application.
  • Figure 5 is a flow chart of a communication method provided by an embodiment of the present application.
  • Figure 6 is a schematic diagram of a generalized access system supporting multiple access technologies provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the Wifi (820.11) standard protocol structure in related technologies
  • FIG. 8 is a schematic diagram of the interaction relationship between entities in the Wifi (820.11) standard protocol in related technologies
  • Figure 9 is a schematic diagram of the Wifi-based MAC structure of the underlying AP provided by an embodiment of the present application.
  • Figure 10 is a schematic diagram of the 4G-based MAC structure of the underlying AP provided by another embodiment of the present application.
  • Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of multi-terminal access based on multiple access technologies in the related art.
  • the base station 100 is a base station that can support 5G and 4G access.
  • the terminal 210 has a 5G configuration and has activated 5G services, so it can access
  • the terminal 220 does not have a 5G configuration or has not activated a 5G service, so it can access the 4G access service provided by the base station 100.
  • the base station 100 cannot communicate with the terminal 210 using different access technologies.
  • the terminal 220 performs unified management of the access layer.
  • the terminal 230 is a VR glasses and can only support WiFi connection. Therefore, even if the terminal 230 is within the signal coverage area of the base station 100, it is impossible to access the base station 100. As a result, the base station 100 cannot implement unified management of the terminal 230.
  • Identification can only be performed through high-level layers, which creates security loopholes; it is impossible to identify terminals under various access technologies.
  • Unified authentication of terminals under access technologies can only be achieved through the access authentication and high-level authentication that come with various technologies. There are risks to system security; unified resource allocation and services cannot be carried out for terminals under different access technologies. Control, resulting in the inability to optimally allocate system resources, especially when the system load is too high, unable to meet the needs of high-priority services; the incompatibility of different access technologies results in the inability to centrally control the networks of various access technologies.
  • the network structure and control are complex, posing huge challenges to network stability; data transmission under different access technologies relies heavily on the security of the access technology itself, and in order to avoid security risks, access technologies with lower security have to be abandoned , seriously affecting the flexibility and ease of use of the network; at the same time, operators need to provide an operation and maintenance system and team for the network of each access technology, which makes network operation and maintenance difficult and increases network operation costs.
  • this application provides a communication method that shields different communication methods through a protocol conversion interface defined between the physical resource-independent Media Access Control (MAC) upper layer and the physical resource-related MAC lower layer.
  • System differences brought by physical resources complete the conversion between the underlying protocol and the high-level protocol, enabling terminals based on the first access technology to access network equipment based on the second access technology, realizing network equipment side access to different Unified control of technology, thus improving network security and stability.
  • MAC Media Access Control
  • Embodiments of the present application can be applied to various wireless communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband) Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LIE-A (Advanced long-term evolution, Advanced Long Term Evolution) system, Universal Mobile Telecommunication System (UMTS), 5G, Beyond Fifth Generation (B5G), 6th Generation (6G) system, etc.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LIE-A Advanced long-term evolution
  • UMTS Universal Mobile Telecommunication System
  • 5G Beyond Fifth Generation (B5G), 6th Generation (6G) system, etc.
  • network equipment can be an evolutionary Node B (eNB or eNodeB) in LTE; or a base station in a 5G network or a future evolved public land mobile network (PLMN), broadband network Business gateway (broadband network gateway, BNG), aggregation switch or non-3rd generation partnership project (3rd generation partnership project, 3GPP) access equipment, etc., the embodiments of this application do not specifically limit this.
  • eNB evolved Node B
  • PLMN public land mobile network
  • BNG broadband network gateway
  • the base stations in the embodiments of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also known as (small cell), relay station, access point, next generation base station (gNodeB, gNB), transmission point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center and device-to-device (Device- Devices that undertake base station functions in to-Device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications are not specifically limited in the embodiments of this application. .
  • macro base stations also known as (small cell), relay station, access point, next generation base station (gNodeB, gNB), transmission point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center and device-to-device (Device- Devices that undertake base station functions in to-Device (D2D), vehicle-to-everything (V2
  • Terminals may include various handheld devices with wireless communication capabilities, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to wireless modems, and the like.
  • the terminal can be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (Personal Digital Assistant, PDA) ) and other equipment.
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal can also be called Subscriber Unit, Subscriber Station, Mobile Station, Mobile, Remote Station, Access Point, Remote Terminal ( Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device), or user equipment (User Equipment).
  • Access network equipment and terminals communicate with each other through some air interface technology, such as the Uu interface.
  • the embodiments of this application are mainly based on the 5G system architecture and the 5G standard protocol, that is, other access technologies access 5G network equipment through conversion. However, it can be understood that in actual implementation, it is not limited to 5G systems.
  • the communication methods provided by the embodiments of this application are also suitable for 4G protocol architecture or subsequent 6G standard protocol architecture and open radio access network (Open Radio Access Network, OPEN-RAN) architecture.
  • OPEN-RAN Open Radio Access Network
  • Figure 2(a) is a schematic diagram of the 5G standard control plane protocol in related technologies
  • Figure 2(b) is a schematic diagram of the 5G standard user plane protocol in related technologies.
  • the Media Access Control layer Media Access Control, MAC
  • RLC Radio link Control
  • Physical layer Physical layer
  • Layer, PHY Physical layer
  • the MAC provides services to the upper RLC layer and also expects services from the lower physical layer.
  • the physical layer provides a transmission channel for the MAC to support the transmission service of wireless interface data transmission
  • the MAC layer provides a logical channel for the RLC layer.
  • the logical channel exists between the MAC layer and the physical layer, and the transmission channel exists between the physical layer and the wireless layer, so the MAC layer is the interface between the logical channel and the physical layer transmission channel.
  • Figure 3(a) is a schematic diagram of the control plane of the 5G-based generalized access system provided by the embodiment of the present application.
  • Figure 3(b) is a schematic diagram of the user plane protocol of the 5G-based generalized access system provided by the embodiment of the present application.
  • the protocol conversion interface is defined at the MAC layer, so that the MAC is divided into a MAC upper layer and a MAC lower layer.
  • the protocol conversion interface is defined based on whether it contains physical resources.
  • the layer related to physical resources is defined as the bottom layer, and the layer unrelated to physical resources is defined as the high layer.
  • FIG 4 is a schematic diagram of the position of the protocol conversion interface in the protocol stack provided by the embodiment of the present application.
  • the protocol conversion interface 410 divides the MAC into two parts: the MAC upper layer 420 and the MAC lower layer 430.
  • the MAC lower layer 430 mainly implements the lower layer interface.
  • the MAC upper layer 420 mainly implements the mapping of logical channels and transport channels, the multiplexing and demultiplexing of MAC SDU and the priority of logical channels. control.
  • the upper layers above the protocol conversion interface are compatible with the 5G standard system, and the secondary development workload is very small.
  • the protocol conversion interface is a logical port and does not involve hardware implementation. It is implemented through software according to standard protocols based on the existing system.
  • the physical layer and the MAC bottom layer together form the bottom layer of the network device. Since the bottom layer of the network device is used to provide access points (Access Points, APs) for multiple access technologies, it is also called bottom AP.
  • Bottom AP It carries the MAC bottom layer and related functions below, and completes the conversion of bottom layer physical resources and other access technologies to 5G protocols; the MAC high layer, RLC layer, PDCP layer, and SDAP layer constitute high-level network equipment to complete the processing of protocols above the MAC high layer.
  • the protocol conversion interface between the terminal bottom layer and the terminal high layer can shield the system differences caused by different physical resources and complete information transmission and protocol conversion.
  • the underlying AP on the network side uses different underlying physical technologies to complete access according to business scenarios, such as wifi, Bluetooth, 4G, 5G, etc.
  • the protocol stack of the high-level network equipment on the network side is the physical resource-independent MAC high-level and above protocol parts of the existing wireless access system (this embodiment is a 5G base station). It is implemented in accordance with the standard protocol and is not changed in the embodiment of this application.
  • the terminal bottom layer is the original protocol implementation of the access technology supported by the terminal, which is not changed in the embodiment of this application; the MAC high layer, RLC layer, PDCP layer, RRC layer, The NAS layer constitutes the terminal high layer.
  • a protocol stack needs to be configured for the terminal high layer.
  • the protocol conversion interface between the terminal bottom layer and the terminal high layer can shield the system differences caused by different physical resources and complete information transmission and protocol conversion.
  • the terminal includes a terminal of any access technology. As long as the underlying AP of the network device has an AP corresponding to the terminal access technology, the terminal access can be realized.
  • a SIM card needs to be configured in the terminal to provide a unique terminal identity.
  • SIM can be a physical SIM card or a virtual SIM card.
  • Figure 5 is a flow chart of a communication method provided by an embodiment of the present application. As shown in Figure 5, this communication method is applied to the terminal, and the terminal has a unique identity by configuring a SIM card.
  • the terminal includes a terminal bottom layer and a terminal high layer.
  • a protocol conversion interface is configured between the terminal bottom layer and the terminal high layer.
  • the protocol conversion interface is located at in the MAC layer.
  • the communication method applied to the terminal may include but is not limited to step S1000, step S2000 and step S3000.
  • Step S1000 Based on the first access technology, the terminal accesses the network device at the bottom layer and generates first communication information corresponding to the first access technology.
  • the original access mode corresponding to the terminal is WiFi access. Therefore, after the terminal is powered on, it accesses WiFi from the underlying AP of the network device according to the configuration information and the WiFi standard process. It can be understood that since WiFi technology is used for access, the underlying AP of the network device is the WiFi underlying AP.
  • the terminal is in the access stage.
  • the terminal needs to monitor the broadcast messages of the network device, and obtain high-level terminal information such as frame synchronization, PLMN, and TAC based on the broadcast messages. At the same time, it determines whether the currently accessed cell can reside in the cell based on the high-level information. Keep. If the residency condition is met, the bottom layer of the terminal needs to initiate an attachment process.
  • the first communication information is an RRC access request message.
  • the RRC access request message is reported to the MAC upper layer via the protocol conversion interface, and is processed by the MAC upper layer and sent to the RRC layer.
  • the terminal within a preset time period, if the bottom layer of the terminal does not receive a broadcast message from the network device, it means that the bottom layer of the terminal has not successfully connected to the corresponding bottom layer AP of the network device. Therefore, the terminal will give a prompt to request The user reconnects to the correct network device underlying AP.
  • the terminal officially initiates service for data transmission.
  • the first communication information is data message information
  • the bottom layer of the terminal reports the data packet information to the MAC high layer through the protocol conversion interface, and the MAC high layer processes it and reports it layer by layer.
  • Step S2000 Convert the first communication information into second communication information corresponding to the second access technology through the protocol conversion interface, and transmit the second communication information to the terminal high layer.
  • the bottom layer of the terminal includes a first MAC layer and parts below the MAC layer.
  • the first MAC layer is a MAC layer related to physical resources;
  • the high layer of the terminal includes a second MAC layer and parts above the MAC layer.
  • the second MAC layer is A MAC layer that is independent of physical resources. Therefore, in this example, the protocol conversion interface is named MAC high-level interface (MH interface).
  • the protocol conversion interface can have multiple naming methods, but its essential function is to shield the system differences caused by different physical resources and complete the conversion between the underlying protocol and the high-level protocol.
  • the RRC access request message is reported to the MAC upper layer via the protocol conversion interface, and is processed by the MAC upper layer and sent to the RRC layer.
  • the data packets of the lower layer of the terminal are encapsulated based on the first protocol corresponding to the original first access technology of the terminal. Therefore, the protocol conversion interface is used during transmission.
  • the protocol conversion interface is used during transmission.
  • the first access technology and the second access technology are often different access technologies. Therefore, through the communication method provided by the embodiments of the present application, different access technologies can be implemented.
  • the terminal with the first access technology is connected to the network equipment that provides the first access technology and business services.
  • the first access technology and the second access technology can also be the same access technology.
  • the communication method provided by the embodiment of the present application can still be used, or the communication method provided in the related technology can be used. existing communication methods.
  • Step S3000 According to the second communication information, the terminal high layer performs terminal access processing or data transmission processing.
  • the high-level protocol stack completes the terminal's access authentication processing, encryption processing, integrity algorithm negotiation processing, and high-level instance bearer establishment processing according to standard procedures.
  • the core network establishes a dedicated Flow for the terminal according to the terminal priority and service priority according to the standard protocol process, and performs QOS control on the entire network terminal.
  • the high-level terminal performs service quality control, data retransmission processing, data encryption processing, data decryption processing, data compression processing, etc.
  • the technical isolation caused by different access technologies can be shielded, and unified identity recognition, access authentication, unified security policies and business control of terminals under different access technologies can be achieved, thereby It simplifies the network structure, enhances network security and stability, and reduces network operation and maintenance costs.
  • the above embodiments mainly describe the process of accessing 5G network equipment and the process of initiating services after access from the perspective of terminals using non-5G access technologies.
  • the process of accessing terminals with non-5G access technology and initiating services will be described.
  • the communication method in the following embodiments is applied to network equipment.
  • the network equipment includes a bottom layer of network equipment and a high layer of network equipment.
  • a protocol conversion interface is configured between the bottom layer of network equipment and the high layer of network equipment.
  • the protocol conversion interface is located in the MAC layer. Since the bottom layer of the network device is used to provide access support for various access technologies in the embodiment of the present application, the bottom layer of the network device is called the bottom AP, and each network device can have one or more bottom APs, which are used to provide access support for various access technologies. The corresponding access technology provides access.
  • the bottom access point includes a first MAC layer and parts below the MAC layer.
  • the first MAC layer is connected to the physical The MAC layer related to physical resources; the high-level network equipment includes the second MAC layer and parts above the MAC layer.
  • the second MAC layer is a MAC layer that has nothing to do with physical resources.
  • multiple access APs of network devices are often associated or multiple access APs of one network device are associated to form an access system.
  • cells and send broadcast messages in the composed cells.
  • Terminals connected to the underlying AP of the network equipment of the cell can receive these broadcast messages and complete subsequent access processing or data transmission processing based on the broadcast messages.
  • the bottom layer AP of the network device since the bottom layer AP of the network device can support the first access technology, the bottom layer of the terminal completes the bottom layer access through the bottom layer AP.
  • the underlying AP of the network device obtains the first access technology adopted by the terminal and determines the first underlying access point corresponding to the first access technology.
  • the underlying access point identifies the identity of the terminal and obtains the identification. result. If the identification result is that the identity belongs to an identity that is allowed to be accessed, terminal access is performed.
  • the terminal needs to perform information acquisition, residency judgment, connection status judgment and other processing based on the broadcast of the network device.
  • the underlying AP of the network device receives the message or report sent by the terminal. After the document is sent, it will also be transmitted step by step from the bottom layer to the upper layer.
  • the message or packet of the bottom AP is the first communication information corresponding to the first access technology.
  • the protocol conversion interface Through the protocol conversion interface, the first communication information is converted into The second communication information corresponds to the second access technology, and the second communication information is transmitted to the high-level network device.
  • the high-level network device performs terminal access processing or transmission data processing according to the second communication information.
  • the first access technology and the second access technology are often different access technologies. Therefore, through the communication method provided by the embodiments of the present application, different access technologies can be implemented.
  • the terminal with the first access technology is connected to the network equipment that provides the first access technology and business services.
  • the first access technology and the second access technology can also be the same access technology.
  • the communication method provided by the embodiment of the present application can still be used, or the communication method provided in the related technology can be used. existing communication methods.
  • the bottom AP and the high-level network equipment are logical devices.
  • the bottom-level AP can be physically integrated into an existing standard wireless system (such as a 4/5G base station) and remotely connected to the high-level network equipment through radio frequency.
  • the protocol conversion interface is carried on a physical interface, and is connected to a high-level network device through optical fiber or transmission network.
  • Step S101 Establish a cell.
  • the high-level network device establishes a connection with the bottom-level AP through the MH port.
  • One or several APs with the same access technology or different access technologies form a cell, and the cell broadcast is delivered normally.
  • Step S102 Install a high-level protocol and a SIM card for the terminal.
  • high-level protocol software and SIM cards based on standard wireless terminals are installed on terminals under various access technologies.
  • Step S103 Bottom layer access.
  • the terminal completes physical layer and MAC lower layer access and instance establishment based on respective access technologies, for example, 4/5G terminal completes random access.
  • Step S104 higher layer access.
  • the terminal completes access authentication, encryption and security negotiation, and high-layer instance bearer establishment according to standard wireless protocols.
  • Step S105 underlying data processing.
  • the bottom layer of the terminal performs data transmission according to the adopted access technology, and the protocol conversion interface sends the bottom layer data to the upper layer after protocol conversion.
  • Step S106 High-level data processing.
  • the terminal high layer processes data according to the standard wireless terminal protocol, including QOS, data retransmission, encryption and decryption, data compression, etc.
  • Step S107 Service control and QOS control.
  • the network establishes different priority bearers for each service of each terminal based on the unified terminal identity and service type based on standard communication protocols, thereby achieving unified control of services in the entire network and achieving high priority.
  • Level services are prioritized and network resource utilization is maximized.
  • FIG. 6 is a schematic diagram of a generalized access system supporting multiple access technologies provided by an embodiment of the present application.
  • the terminal 620 adopts a first access technology
  • the network device 610 is based on a second access technology
  • the first access technology is different from the second access technology.
  • the terminals 621-624 cannot access the network device 610. Therefore, the network device 610 cannot uniformly manage the terminal 620.
  • the bottom layer of the network device is called the bottom AP 612 that can support the first access technology.
  • the bottom AP when the bottom AP is a wifi bottom AP 612, the bottom AP 612 can access the wifi terminal 621; when the bottom AP is a Bluetooth bottom AP 613, the bottom AP 613 can access the Bluetooth terminal 622, and so on.
  • the protocol stack of high-level network equipment is based on the MAC high-level and above protocol parts that have nothing to do with the physical resources of the existing wireless access system (5G base station). They are implemented in accordance with the standard protocol and do not need to be modified.
  • the operator's current network is restructured based on OPEN-RAN technology, and high-level network equipment is placed in OPEN-RAN computer arrays, that is, servers.
  • OPEN-RAN computer arrays that is, servers.
  • Bottom-level APs that support different access technologies are distributed throughout the entire area according to business needs, so that The entire city is under one or several generalized access base stations.
  • This embodiment provides a communication method of a generalized access system whose bottom layer is Wifi.
  • FIG. 7 is a schematic diagram of the Wifi (820.11) standard protocol structure in related technologies.
  • Media Access Control MAC is responsible for the encapsulation/unloading of data frames, link management, frame addressing and identification, frame reception and transmission, frame error control, etc.
  • PLCP Physical Layer Convergence Procedure
  • PMD Physical Medium Dependent
  • FIG. 8 is a schematic diagram of the interaction relationship between entities in the Wifi (820.11) standard protocol in related technologies.
  • the main functions of each module are as follows. It can be seen that each module is mainly related to physical resources:
  • MIB Management Information Base
  • MAC layer management entity MAC layer management entity, responsible for connection, authentication, synchronization, roaming, MIB management information base and power management.
  • PME Physical-layer Management Entity
  • SME System Management Entity
  • FIG 9 is a schematic structural diagram of the Wifi-based MAC structure of the underlying AP provided by the embodiment of the present application.
  • Wifi's MAC mainly implements the MAC underlying functions of the 5G standard.
  • the Wifi MAC 620 After the Wifi MAC 620 completes data processing, it re-encapsulates the data in accordance with the 5G protocol at the MH interface 630 and reports it to the 5G MAC upper layer 610 for processing.
  • the protocol conversion interface is called the MH interface.
  • Step S201 The high-level network equipment establishes a connection with the underlying AP through the MH port.
  • One or several APs with the same access technology or different access technologies form a cell.
  • the cell broadcast is delivered normally.
  • the 5G part of the system is fully compatible with the existing 5G system.
  • 5G The mobile phone can access normally and conduct business without being affected.
  • Step S202 The terminal based on the WIFI standard protocol is installed with software or hardware that supports 5G MAC high-level protocols or above, and a SIM card that supports the 5G standard is installed.
  • Step S203 The underlying WIFI-based AP sets a proprietary SSID for AP identification.
  • Step S204 The terminal is powered on, and connects to Wifi according to the configuration information and the Wifi standard process.
  • Step S205 After completing the WIFI connection, if the base station broadcast information can be received normally within the specified time, the broadcast information will be reported to the higher layer; if the broadcast information cannot be received within the specified time, a prompt will be given to require the user to reconnect to the correct AP.
  • Step S206 After the higher layer receives the broadcast message reported by the physical layer, for non-5G terminals, the broadcast message is mainly read to obtain frame synchronization, PLMN, TAC and other higher layer information. At the same time, it is judged based on the higher layer information element whether the cell can reside, 5G wireless related The thresholds are all satisfied by default. If the conditions are met, the attachment is initiated according to the standard process; if the broadcast message is read and it is found that the cell cannot be camped, the user is prompted that the connected AP cannot meet the access requirements and needs to be replaced with another AP.
  • Step S207 The terminal initiates the attachment process. Since the link has been established at the physical layer, there is no need to perform a random access process. It directly reports the RRC connection request message to the MAC upper layer through the MH port through Wifi. The MAC upper layer processes it and sends it to the RRC layer.
  • Step S208 The high-level protocol stack completes the terminal's access authentication, encryption and decryption, integrity algorithm negotiation and Flow establishment according to standard procedures.
  • Step S209 After the terminal access is completed, the service is initiated, and the core network performs according to the standard according to the terminal priority and service priority.
  • the protocol process establishes a dedicated Flow for the terminal and controls the QOS of the entire network terminal.
  • terminals based on Wifi access technology can finally connect to 5G network equipment, thereby simplifying the network structure, significantly improving the stability and maintainability of the network, and reducing network maintenance costs; different access
  • the terminals of the technology adopt a unified identity and perform unified access control and authentication based on the 5G protocol, which improves the security of the network; based on the 5G system, unified QOS control is implemented for each user and business, which can be used in heavy network loads. Under such circumstances, key users and key services are protected; user plane data is encrypted and integrity protected based on 5G standard protocols, which improves system security; terminals with different access networks are placed under the same 5G network, reducing the risk of different access networks.
  • the delay between access technology terminals improves user experience; based on the security control of 5G network, low-security access technology (such as Wifi) can be used in networks with relatively high security requirements, increasing the flexibility of network deployment. Reduces network deployment costs.
  • FIG 10 is a schematic diagram of the 4G-based MAC structure of the underlying AP provided by the embodiment of this application.
  • the 4G MAC standard model is close to 5G.
  • the system architecture of the generalized access system based on 4G is shown in Figure 10.
  • Below the MH interface 710 is the MAC bottom layer 730 based on the 4G standard, which mainly completes HARQ, random access, resource scheduling and other functions, including the 4G standard protocol stack 750.
  • the 5G-based MAC upper layer 720 which mainly completes functions such as SDU multiplexing and demultiplexing, logical channel priority control, etc., including the 5G standard protocol stack 740.
  • MH port 710 converts the 4G MAC message reported on the 4G bottom layer into the corresponding 5G message and submits it to the MAC upper layer.
  • the protocol conversion interface is called the MH interface.
  • Step S301 The network device is composed of the MAC layer and above based on the 5G standard and a bottom layer AP compatible with different access technologies.
  • the bottom layer AP includes a MAC bottom layer related to physical resources and a standard 4G module.
  • One or several underlying APs based on the same access technology form a 5G cell.
  • the cell is established normally and cell broadcasts are delivered normally.
  • Step S302 The terminal is installed with software or hardware that supports 5G MAC higher-level protocols and above, and a SIM card that supports the 5G standard.
  • Step S303 The terminal is powered on and performs frequency scanning to obtain downlink synchronization.
  • Step S304 After completing the downlink synchronization, read the cell broadcast information according to the standard process, and report the broadcast information to the higher layer.
  • Step S305 After the upper layer receives the broadcast message reported by the physical layer, it reads the broadcast message to mainly obtain high-level information such as frame synchronization, PLMN, and TAC. At the same time, it determines whether the cell can reside in the cell based on the high-level information elements. The wireless-related threshold is converted to determine whether satisfy. If it can camp, initiate attachment according to the standard process; if it reads the broadcast message and finds that the cell cannot be camped, search again according to the standard process until a cell that can camp is selected.
  • high-level information such as frame synchronization, PLMN, and TAC.
  • Step S306 After the terminal is parked, it initiates the attachment process according to the standard process.
  • the high-level protocol stack completes terminal access authentication, encryption, decryption and security algorithm negotiation and bearer establishment in accordance with standard procedures.
  • Step S307 After the terminal access is completed, the service is initiated.
  • the core network establishes a dedicated Flow for the terminal according to the terminal priority and service priority according to the standard protocol process, and performs QOS control on the entire network terminals.
  • terminals based on 4G access technology can finally connect to 5G network equipment. Achieve unified control and maintenance of the network, reduce network operating costs, and improve user experience.
  • Embodiments of the present application also provide a communication method, which is applied to a network device system.
  • the network device system includes at least one network device.
  • the network device performs the communication method provided by the above embodiments.
  • the method also includes connecting the at least one network device to
  • the underlying access points form at least one cell; they broadcast within the cell so that terminals within the cell can receive the broadcast information carried in the broadcast.
  • Embodiments of the present application also provide a terminal.
  • the terminal is configured with a protocol conversion interface, a protocol stack and an identity identifier.
  • the protocol conversion interface is configured in the MAC layer, so that the terminal forms a first MAC layer and a second MAC layer.
  • the first MAC layer It is used to provide the terminal with access based on the first access technology, and the protocol stack is used to provide the second MAC layer with protocol configuration corresponding to the second access technology.
  • Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the beam configuration device includes a processor 910 and a memory 920.
  • the number of memory 920 and processor 910 may be one or more.
  • one memory 920 and one processor 910 are taken as an example; the memory 920 and processor 910 in the device may be connected through a bus or other means.
  • the memory 920 can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the resource determination method provided in any embodiment of the present application.
  • the processor 910 implements the above communication method by running software programs, instructions and modules stored in the memory 1600 .
  • the memory 920 may mainly include a program storage area and a data storage area, where the program storage area may store an operating system and an application program required for at least one function.
  • the memory 920 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • memory 920 may further include memory located remotely relative to processor 910, and these remote memories may be connected to the device through a network. Examples of the above-mentioned networks include but are not limited to the Internet, intranets, local area networks, mobile communication networks and combinations thereof.
  • An embodiment of the present application also provides a computer-readable storage medium that stores computer-executable instructions.
  • the computer-executable instructions are used to execute the communication method provided by any embodiment of the present application.
  • An embodiment of the present application also provides a computer program product, which includes a computer program or computer instructions.
  • the computer program or computer instructions are stored in a computer-readable storage medium.
  • the processor of the computer device reads the computer program from the computer-readable storage medium.
  • Program or computer instructions the processor executes the computer program or computer instructions, so that the computer device performs the communication method provided by any embodiment of the present application.
  • the communication method provided by the embodiment of the present application shields the system differences caused by different physical resources through a protocol conversion interface defined between the MAC upper layer that is unrelated to physical resources and the MAC lower layer that is related to physical resources, and completes the lower layer protocol and the higher layer.
  • the conversion between protocols enables terminals based on the first access technology to access network equipment based on the second access technology, achieving unified control of different access technologies, thus improving network security and stability.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may consist of several physical components. Group Cooperation in execution. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes volatile and nonvolatile media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. removable, removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disk (DVD) or other optical disk storage, magnetic cassettes, tapes, disk storage or other magnetic storage devices, or may Any other medium used to store the desired information and that can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .
  • a component may be, but is not limited to, a process, processor, object, executable file, thread of execution, program or computer running on a processor.
  • applications running on the computing device and the computing device may be components.
  • One or more components can reside in a process or thread of execution, and the component can be localized on one computer or distributed between 2 or more computers. Additionally, these components can execute from various computer-readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component, such as a local system, a distributed system, or a network, such as the Internet, which interacts with other systems via signals) Communicate through local or remote processes.
  • data packets eg, data from two components interacting with another component, such as a local system, a distributed system, or a network, such as the Internet, which interacts with other systems via signals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente demande concernent un procédé et un dispositif de communication, ainsi qu'un terminal et un support de stockage. Le procédé de communication est appliqué à un terminal ayant une identité. Le terminal contient une couche inférieure et une couche supérieure. Une interface de conversion de protocole est configurée entre la couche inférieure et la couche supérieure. L'interface de conversion de protocole est située dans une couche MAC. Sur la base d'une première technologie d'accès, la couche inférieure du terminal accède à un dispositif de réseau et génère des premières informations de communication correspondant à la première technologie d'accès (S1000). Puis le procédé suppose de convertir, par l'intermédiaire de l'interface de conversion de protocole, les premières informations de communication en secondes informations de communication correspondant à une seconde technologie d'accès et de transmettre les secondes informations de communication à la couche supérieure du terminal (S2000). La couche supérieure du terminal effectue un traitement d'accès du terminal ou un traitement de transmission de données sur la base des secondes informations de communication (S3000).
PCT/CN2023/093286 2022-08-01 2023-05-10 Procédé et dispositif de communication, terminal et support de stockage Ceased WO2024027260A1 (fr)

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