CN113259970B - Communication method and terminal device - Google Patents
Communication method and terminal device Download PDFInfo
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- CN113259970B CN113259970B CN202110500888.5A CN202110500888A CN113259970B CN 113259970 B CN113259970 B CN 113259970B CN 202110500888 A CN202110500888 A CN 202110500888A CN 113259970 B CN113259970 B CN 113259970B
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Abstract
The invention provides a communication method and terminal equipment, wherein the communication method is realized based on a preset wireless short-distance communication protocol stack structure, and the preset wireless short-distance communication protocol stack structure comprises an access layer, a basic service layer and a basic application layer. The basic service layer comprises a plurality of basic function modules, and the basic application layer comprises a cellular convergence service function module. The method comprises the following steps: and directly calling a plurality of basic function modules in the basic service layer through the cellular convergence service function module in the basic application layer to send and/or receive control information or data of the cellular convergence service. The communication method can reduce the signaling overhead and the design complexity.
Description
Technical Field
The present invention relates to the field of wireless network communication technologies, and in particular, to a communication method and a terminal device.
Background
In a cellular Radio communication system, a User Equipment (UE) is connected to a Radio Access Network (RAN) via a Radio link. The RAN comprises a set of base stations (base station) providing radio links to UEs located in the cells covered by the base stations and including an interface to a Core Network (CN) having the function of controlling the overall Network. It is understood that the RAN and CN each perform corresponding functions with respect to the entire network.
The third generation partnership project has developed a so-called Long Term Evolution (LTE) system, an Evolved Universal mobile telecommunications system Terrestrial Radio Access Network (E-UTRAN), for mobile Access networks of one or more macro cells supported by base stations called enodebs or enbs (Evolved nodebs).
LTE further evolves towards so-called 5G or New Radio (NR) systems, where one or more cells are supported by a base station called a gNB. The trend in wireless communication is toward providing services with lower delay and higher reliability. For example, 5G supports Ultra-reliable and low-latency Communication (URLLC), enhanced Mobile BroadBand (eMBB) for high data transmission rates, and mass Machine-Type Communication (mtc) that supports a large number of devices with energy-efficient Communication channels with long lifetimes.
Currently, 5G technology is enabling a wide range of businesses, and in particular, the development of "5G + project" fusion applications is well-motivated, such as: the 5G is fused to novel industry facilities such as an industrial internet, an internet of things and an internet of vehicles, the 5G is fused to application facilities such as artificial intelligence and cloud computing, and the 5G is fused to a new generation information network such as a satellite internet and an optical fiber broadband network, so that the combination of the 5G technology and various industries is closer, and the industries are moving towards intelligent rapid transformation.
Meanwhile, the development of the 5G technology promotes a large number of intelligent terminals, and a large number of wireless short-distance connection intelligent terminals are put into the market, so that more updated application scenes are derived. Such as typical short-distance application scenarios in the fields of intelligent automobiles, intelligent manufacturing, intelligent homes, intelligent terminals and the like. A new wireless short-range application scene puts new requirements on a wireless short-range communication (short-range wireless communication) technology, and covers various aspects such as time delay, reliability, concurrency, information safety and the like.
For example, the existing wireless short-range communication standard includes a spark erosion (spark link) system protocol, and a new generation of wireless short-range communication system is established by using an air interface technology specified in CCSA TC10 technical requirements for vehicle-mounted wireless short-range communication systems in spark erosion 1.0. The system designs a physical layer and a data link layer, and provides connection-oriented air interface (air interface) transmission with QoS guarantee for upper application. The satellite flash technology can ensure the requirements of low time delay, high reliability, high precision synchronization, information safety and the like, meet the requirements of various typical wireless application scenes, and promote the continuous evolution of the wireless short-distance communication technology.
Only, the current 5G business belongs to the initial development stage, and considering the practical situation of vertical industry integration, the problem of enterprise network compatibility, the problem that part of old information equipment cannot adapt to digital transformation and the like, the 5G network service is difficult to reach the end node. The method is based on the key ring of the short-distance communication for connecting end-to-end connection, is the last hundred meters of the landing of the Internet of things technology, integrates the 5G network with the wireless short-distance communication technology (such as a star flash technology), can expand the network coverage range, realizes the close integration of different networks, can further drive the interconnection and intercommunication of network infrastructures such as end network clouds and the like, data transmission and the bearing of intelligent services, and promotes the development stage of the 5G network to be more intelligent and open.
Fig. 1 shows a schematic diagram of a potential wireless short-range communication protocol stack architecture. Taking the star flash system protocol stack architecture as an example, the star flash system protocol stack architecture is an end-to-end hierarchical management architecture fused with a 5G cellular network, and provides a control plane protocol stack and a data protocol stack fused with the 5G cellular network. As shown in fig. 1, the satellite flash system Protocol stack architecture includes an access layer, a basic service layer, a Transmission Control Protocol (TCP)/User Datagram Protocol (UDP) Protocol layer, and a basic application layer. The access layer is used for access control of wireless signals, the basic service layer comprises modules of equipment discovery, service discovery, connection management, QoS management, security management, multi-domain coordination, measurement management and the like of the control plane, and each module executes corresponding functions and modules of connection and data adaptation, synchronous transmission, asynchronous transmission and the like of the user plane. The TCP/IP protocol layer supports the transmission of TCP/IP data packets. The basic application layer provides basic communication, basic audio and video, active noise reduction and other services, and provides applications such as setting, multi-screen cooperation, screen projection and audio.
In the satellite flash system constructed according to the protocol stack architecture of the satellite flash system, the nodes in the system are divided into a management node (G node) and a managed node (T node). In a specific application scenario, a single G node manages a certain number of T nodes, and the G node is connected with these T nodes to jointly perform a specific communication function. The single G node and the T node connected with the single G node form a communication domain together.
In the existing satellite flash system protocol stack architecture, an application and a service are defined in a basic application layer, and a 5G convergence service (corresponding to the cellular convergence service module of fig. 1) is also defined, the 5G convergence service can implement link establishment and data interaction between a satellite flash terminal and a 5G core network in the application layer, and a 5G convergence function (corresponding to the cellular convergence function module of fig. 1) is defined in the basic service layer and is responsible for specific protocol implementation of the 5G convergence function. When a core network issues a service, a 5G fusion service of a basic application layer calls a 5G fusion function of the basic service layer, and then the 5G fusion function calls a plurality of basic service modules of the basic service layer, such as an equipment discovery module and a connection management module of a control plane; a synchronous transmission module of the user plane, a connection and data adaptation module and the like.
In addition, in the protocol stack architecture of the satellite flash system currently under discussion, the G node may convert short-range communication signaling/data and 5G cellular communication signaling/data through a 5G convergence service module of a base application layer, and has a function of forwarding/distributing/summarizing control signaling or data of a 5G convergence service (short-range) and a 5G convergence service (cellular).
In addition, under a potential star flash system control plane protocol stack frame, if the G node has 5G convergence service capability, the G node directly participates in service interaction between the T node and a core network, and the conversion function between short-distance communication signaling/data and 5G cellular communication signaling/data is executed through a basic application layer; and if the G node does not have the 5G fusion service capability, the G node only conducts data transparent transmission, and the transparent transmission function is executed in a basic service layer. Under the proposed framework of the underlying user plane protocol stack, the data follows the TCP/IP protocol.
In the aspect of 5G cellular network convergence, the existing wireless short-distance communication technology has the problems of unclear definition of partial modules, fuzzy functions, imperfect protocol stack and the like in the aspects of architecture, user plane/control plane protocol stack and the like. Specifically, the existing wireless short-range communication protocol stack architecture (such as the star flash system protocol stack architecture) has at least the following technical problems:
(1) for the transmission and/or reception of control information or data related to the cellular convergence service, the cellular convergence function module in the basic service layer needs to be called by the cellular convergence service module in the basic application layer in a cross-layer manner, and multiple basic function modules are called by the cellular convergence function module in the basic service layer, which increases signaling overhead and design complexity.
(2) In a communication scenario facing that a plurality of T nodes are connected to the same G node at the same time, the existing wireless short-range communication protocol stack architecture cannot well support the G node to complete the following functions: and distinguishing which T node the service belongs to/comes from, how a plurality of application services similar to the T nodes are simultaneously processed by G nodes, flow control, radio link failure recovery and the like.
(3) The G node supports data transparent transmission and conversion functions between short-range communication signaling/data and 5G cellular communication signaling/data, but the use occasions of the two functions are not optimized.
Accordingly, the present invention seeks to solve some significant problems in the art.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
The invention aims to provide a communication method and terminal equipment to solve the problem that the existing wireless short-range communication protocol stack structure is not complete.
A first aspect of the present invention provides a communication method, which is implemented based on a preset wireless short-range communication protocol stack architecture, where the preset wireless short-range communication protocol stack architecture includes an access layer, a basic service layer, and a basic application layer, and the method includes:
executing communication operation based on an access layer, a basic service layer and a basic application layer of the preset wireless short-distance communication protocol stack architecture, wherein the basic service layer comprises a plurality of basic function modules, and the basic application layer comprises a cellular convergence service function module; and
and directly calling a plurality of basic function modules in the basic service layer through the cellular convergence service function module in the basic application layer to send and/or receive control information or data of the cellular convergence service.
In an embodiment of the first aspect of the present invention, in the step of sending and/or receiving control information or data of a cellular convergence service, the cellular convergence service function module in the basic application layer directly invokes a plurality of basic function modules in the basic service layer based on a required basic function configured by pre-configuration, pre-definition, base station configuration, or core network configuration.
In an embodiment of the first aspect of the invention, the method further comprises:
the conversion between the control information or data related to the short-range communication and the control information or data of the cellular communication is performed by the cellular convergence service function module in the base application layer.
In an embodiment of the first aspect of the present invention, the preset wireless short-range communication protocol stack architecture supports both a transparent transmission function of control information or data and a conversion function between the control information/data of short-range communication and the control information/data of cellular communication, and the two functions are turned on autonomously according to a service type, or turned on by a service trigger management node, or turned on according to a default setting.
In an embodiment of the first aspect of the present invention, the plurality of basic function modules in the basic service layer include a device discovery or connection management module of a control plane and a synchronous transmission or asynchronous transmission module of a user plane.
In an embodiment of the first aspect of the present invention, the communication method is performed in a management node in a wireless short-range communication network.
In an embodiment of the first aspect of the present invention, the communication method is performed in a managed node in a wireless short-range communication network.
In an embodiment of the first aspect of the present invention, the preset wireless short-range communication protocol stack architecture is a satellite flash system protocol stack architecture, and the cellular convergence service function module is a 5G convergence service function module.
A second aspect of the present invention provides a communication method, implemented based on a preset wireless short-range communication protocol stack architecture, where the preset wireless short-range communication protocol stack architecture includes an access layer, a basic service layer, and a basic application layer, and the method includes:
executing communication operation based on an access layer, a basic service layer and a basic application layer of the preset wireless short-distance communication protocol stack architecture, wherein the basic service layer comprises a plurality of basic function modules, and the preset wireless short-distance communication protocol stack architecture further comprises a basic function layer positioned between the basic service layer and the basic application layer; and
and performing conversion between the control information or data of the short-range communication and the control information or data of the cellular communication through a basic functional layer in the preset wireless short-range communication protocol stack architecture.
In an embodiment of the second aspect of the present invention, the basic application layer includes a cellular convergence service function module, and is configured to directly invoke multiple basic function modules in the basic service layer to send and/or receive control information or data of a cellular convergence service.
In an embodiment of the second aspect of the present invention, the basic application layer includes a cellular convergence service module, and the basic service layer further includes a cellular convergence function module, where the cellular convergence service module calls the cellular convergence function module in the basic service layer in a cross-layer manner, and calls the plurality of basic function modules through the cellular convergence function module in the basic service layer, so as to send and/or receive control information or data of a cellular convergence service.
In an embodiment of the second aspect of the invention, the method further comprises:
and executing forwarding/distribution/summarization of the control information or data of the short-range communication and the control information or data of the cellular communication through a basic functional layer in the preset wireless short-range communication protocol stack architecture so as to support a scene of multi-node concurrence and multi-service concurrence.
In an embodiment of the second aspect of the present invention, the basic function layer further has functions of any one of service identification, similar service multiplexing, flow control, and radio link failure recovery.
In an embodiment of the second aspect of the invention, the base functional layer acts as an adaptation layer.
In an embodiment of the second aspect of the present invention, the preset wireless short-range communication protocol stack architecture supports both a transparent transmission function of control information or data and a conversion function between the control information/data of short-range communication and the control information/data of cellular communication, and the two functions are independently turned on according to a service type, or a service triggers a management node to turn on a corresponding function, or are turned on according to a default setting.
In an embodiment of the second aspect of the present invention, the plurality of basic function modules in the basic service layer include a device discovery or connection management module of the control plane and a synchronous transmission or asynchronous transmission module of the user plane.
In an embodiment of the second aspect of the present invention, the communication method is performed in a management node in a wireless short-range communication network.
In an embodiment of the second aspect of the present invention, the preset wireless short-range communication protocol stack architecture is a satellite flash system protocol stack architecture, and the cellular convergence service function module is a 5G convergence service function module.
A third aspect of the present invention provides a terminal device, comprising: a memory, a processor and a program stored on the memory and executable on the processor, the program being executed by the processor to implement the communication method according to the first aspect of the invention.
A fourth aspect of the present invention provides a terminal device, including: a memory, a processor and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the communication method according to the second aspect of the invention.
The various steps in the communication method of the invention may be implemented by a program executable by a processor, the program being storable in a non-transitory computer readable medium which may comprise at least one of the group consisting of: hard disks, CD-ROMs, optical storage devices, magnetic storage devices, read-only memories, programmable read-only memories, erasable programmable read-only memories, electrically erasable programmable read-only memories, and flash memories.
In an embodiment of the present invention, the cellular convergence service function module in the basic application layer directly calls the multiple basic function modules in the basic service layer to send and/or receive control information or data of the cellular convergence service, so that signaling overhead and design complexity can be reduced. In another embodiment of the present invention, a basic function layer located between a basic service layer and a basic application layer in a preset wireless short-range communication protocol stack structure is used to perform conversion between control information or data of short-range communication and control information or data of cellular communication, and the basic function layer is used as an adaptation layer, which can well support a communication scenario in which multiple T nodes are simultaneously connected to the same G node.
Description of the drawings
Further details, aspects and embodiments of the invention are described below, by way of example only, with reference to the accompanying drawings. For simplicity and clarity of illustration, elements in the figures are illustrated and not necessarily drawn to scale. The same reference numerals are included in the various drawings to facilitate understanding.
Fig. 1 shows a schematic diagram of a potential wireless short-range communication protocol stack architecture.
Fig. 2 is a diagram illustrating a first example of an architecture of a wireless short-range communication protocol stack according to a first embodiment of the present invention.
Fig. 3 is a diagram illustrating a second example of a wireless short-range communication protocol stack architecture according to the first embodiment of the invention.
Fig. 4 is a diagram illustrating a third example of the architecture of the wireless short-range communication protocol stack according to the first embodiment of the invention.
Fig. 5 is a diagram illustrating a first example of a G node participating in the interaction between a T node and a core network under the control plane protocol stack architecture of wireless short-range communication according to a second embodiment of the present invention.
Fig. 6 is a diagram illustrating a second example of a control plane protocol stack architecture for short-range wireless communications according to a second embodiment of the present invention.
Fig. 7 is a diagram illustrating a third example of a control plane protocol stack architecture for short-range wireless communication according to a second embodiment of the present invention.
Fig. 8 is a diagram illustrating a first example of a user plane protocol stack architecture for wireless short-range communication according to a third embodiment of the present invention.
Fig. 9 is a diagram illustrating a second example of a user plane protocol stack architecture for short-range wireless communications according to a third embodiment of the present invention.
Fig. 10 is a diagram illustrating a third example of the user plane protocol stack architecture for short-range wireless communication according to a third embodiment of the present invention.
Fig. 11 shows a flow chart of a communication method according to a fourth embodiment of the invention.
Fig. 12 shows a flow chart of a communication method according to a fifth embodiment of the invention.
Detailed Description
In order to make those skilled in the art better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a communication method and a communication system, emphasizes on the fusion of wireless short-distance communication and cellular communication, and solves the problem that a protocol stack of the existing wireless short-distance communication protocol stack architecture is not perfect. Herein, the wireless short-range communication protocol stack architecture is described by taking the satellite flash system protocol stack architecture as an example, and the cellular communication network is described by taking the 5G communication network as an example, but it should be understood that the present invention is not limited thereto.
In terms of the basic architecture of the wireless short-range communication protocol stack, please refer to fig. 2 to 4, taking a satellite flash (SparkLink) system protocol stack architecture as an example, the satellite flash system protocol stack architecture is an end-to-end hierarchical management architecture converged with a 5G cellular network, which proposes a potential control plane protocol stack and a data protocol stack converged with the 5G cellular network. The satellite flash system Protocol stack architecture comprises an access layer, a basic service layer, a Transmission Control Protocol (TCP)/User Datagram Protocol (UDP) Protocol layer and a basic application layer. The access layer is used for access control of wireless signals, the basic service layer comprises a plurality of basic function modules, such as modules of device discovery, service discovery, connection management, QoS management, security management, multi-domain coordination, measurement management and the like of a control plane, each module executes corresponding functions, and modules of connection and data adaptation, synchronous transmission, asynchronous transmission and the like of a user plane, each module executes corresponding functions. The TCP/IP protocol layer supports the transmission of TCP/IP data packets. The basic application layer provides basic communication, basic audio and video, active noise reduction and other services, and provides applications such as setting, multi-screen cooperation, screen projection and audio.
In the satellite flash system constructed according to the protocol stack architecture of the satellite flash system, nodes in the system are divided into a management node (G node) and a managed node (T node). In a specific application scenario, a single G node manages a certain number of T nodes, and the G node is connected with these T nodes to jointly perform a specific communication function. The single G node and the T node connected with the single G node form a communication domain together. In some scenarios, there may be multiple communication domains. For example, in an intelligent automobile environment, a mobile phone can also serve as a G node to be connected to a wearable device, and at this time, the mobile phone and the wearable device form another communication domain; in the intelligent home scene, a television and a lower-hanging audio device form a communication domain, a mobile phone and an earphone form another communication domain, the two communication domains can be distinguished through an advanced/general communication domain, the advanced communication domain performs resource coordination, and coordination coexistence among multiple domains is realized.
The following describes the improvement of the present invention on the existing wireless short-range communication protocol stack (such as the star flash system protocol stack architecture).
The first embodiment is as follows: 5G fusion end-to-end protocol stack based on star flash technology
(1) First example
In the existing solution, as shown in fig. 1, a plurality of basic function modules and a cellular convergence function module (e.g. a 5G convergence function module) are arranged in a basic service layer, and a cellular convergence service module (e.g. a 5G convergence service module) is arranged in a basic application layer. When the T node has control information (such as control signaling) or data related to the cellular convergence service to be transmitted, the cellular convergence service module in the basic application layer needs to schedule the cellular convergence function module in the basic service layer in a cross-layer manner, and then the cellular convergence function module schedules a plurality of basic function modules in the basic service layer, so as to receive or transmit the control information or data related to the cellular convergence service. However, this approach increases signaling overhead and design complexity.
In order to reduce signaling overhead and design complexity, the invention considers that a cellular fusion service function module is designed in a basic application layer to replace a 5G fusion service function module, and can realize the link establishment and data interaction of a short-distance T node and a 5G core network in the application layer from the application point of view; from the service perspective, a plurality of basic service modules in the basic service layer can be directly called according to the basic functions required by the service.
From the service perspective, the cellular convergence service module and the cellular convergence function module in the existing solution essentially serve the cellular convergence service. In order to reduce signaling overhead and design complexity, the present invention uses one module in the basic application layer, i.e. a cellular convergence service function module (e.g. a 5G convergence service function module), to directly call a plurality of basic function modules in the basic service layer, as shown in fig. 2. When the T node has control information (such as control signaling) or data transmission/reception related to the cellular convergence service, the T node is implemented by directly calling a plurality of basic function modules (such as modules for device discovery and connection management of the control plane, and modules for synchronous transmission and asynchronous transmission of the user plane) in the basic service layer through the cellular convergence service function module in the basic application layer, so that signaling overhead and design complexity can be reduced. The cellular convergence service function module can directly schedule a plurality of basic function modules in a basic service layer based on the required basic functions of pre-configuration, pre-definition, base station configuration and core network configuration. From the application point of view, the connection establishment and the data interaction with the core network can be realized, and from the function point of view, the corresponding basic function module can be scheduled.
(2) Second example
In the existing solution, the G node may convert control signaling/data of short-range communication and control signaling/data of cellular communication through a basic application layer, and may forward/distribute/summarize signaling of cellular convergence service (short-range) and cellular convergence service (cellular). However, in a communication scenario where multiple T nodes simultaneously connect to the same G node and multiple different types of services exist in a single or multiple T nodes at the same time, the existing solution cannot well handle multi-node concurrency and multi-service concurrency. In other words, the existing scheme does not support a single G node to serve multiple T nodes at the same time, nor does it support multiple different types of services simultaneously existing on a single or multiple T nodes. In addition, the existing scheme can not well support functions such as flow control and radio link failure recovery.
The present invention manages the above functions in a unified way by adding an adaptation layer, as shown in fig. 3, this adaptation layer is defined as a basic function layer, which is located between a basic application layer and a basic service layer on a control plane and between the basic application layer and a TCP/UDP protocol layer on a user plane, and the setting of this basic function layer can make the multi-node concurrency and multi-service concurrency obtain a good support, so as to support a single G node to provide services for multiple T nodes at the same time and support multiple different types of services existing on a single or multiple T nodes at the same time, the basic function layer also realizes the conversion function between the control information/data of short distance communication and the control information/data of cellular communication, and forwards/distributes/summarizes the control information and data of cellular convergence service (short distance) and cellular convergence service (cell), the method has the functions of supporting service identification, similar service multiplexing, flow control, wireless link failure recovery and the like, so that the method can be well applied to scenes of multi-node concurrency and multi-service concurrency.
(3) Third example
Referring to fig. 4, the protocol stack architecture of the first example and the second example is integrated, and the cellular convergence service function module is introduced into the basic application layer in the present invention, and directly invokes a plurality of basic function modules in the basic service layer to perform sending and/or receiving of control information or data of the cellular convergence service; meanwhile, a basic function layer is added between a basic application layer and a basic service layer under a control plane (between the basic application layer and a TCP/UDP protocol layer under a user plane), a conversion function between control information/data of short-distance communication and control information/data of cellular communication is supported, and functions of forwarding/distributing/summarizing of the control information/data, service identification, similar service multiplexing, flow control, wireless link failure recovery and the like are supported.
Example two: control plane protocol stack structure for G node participating in service interaction between T node and core network
(1) First example
Fig. 5 describes a control plane protocol stack for cellular convergence, where a cellular convergence service function module is introduced in a basic application layer, and may directly invoke multiple basic function modules in the basic application layer to send and/or receive control information or data of a cellular convergence service, and when a terminal T node wants to perform service interaction with a core network, a conversion function between control information/data of short-distance communication and control information/data of cellular communication is implemented through the basic application layer, and a specific forwarding/distributing/summarizing of control signaling or data may implement a routing function through the cellular convergence service function module in the basic application layer of a G node.
(2) Second example
Fig. 6 depicts another cellular converged control plane protocol stack, when a terminal T node wants to perform service interaction with a core network, a function of conversion between control information/data of short-distance communication and control information/data of cellular communication is implemented by an introduced basic functional layer, and a specific control signaling or data forwarding/distributing/summarizing may implement a routing function by the basic functional layer of a G node.
(3) Third example
Fig. 7 illustrates another cellular convergence control plane protocol stack, where a cellular convergence service function module is introduced into a basic application layer, and may directly invoke multiple basic function modules in the basic service layer to transmit and/or receive control information or data of a cellular convergence service, and when a terminal T node wants to perform service interaction with a core network, a conversion function between control information/data of short-distance communication and control information/data of cellular communication is implemented through the introduced basic function layer, and a specific control signaling or data forwarding/distributing/summarizing may implement a routing function through the basic function layer of a G node.
Example three: user plane protocol stack structure for G node participating in service interaction between T node and core network
(1) First example
Fig. 8 illustrates a user plane protocol stack for cellular convergence, where a cellular convergence service function module is defined in a base application layer, and may directly invoke multiple base function modules in the base application layer to send and/or receive control information or data of a cellular convergence service, and when a terminal T node wants to perform service interaction with a core network, a conversion function between control information/data of short-distance communication and control information/data of cellular communication is implemented through the base application layer, and a specific control signaling or data forwarding/distributing/summarizing may implement a routing function through the cellular convergence service function module in the base application layer of a G node.
(2) Second example
Figure 9 depicts another cellular converged user plane protocol stack with the addition of a base function layer between the base application layer and the TCP/UDP protocol layer. When a terminal T node wants to perform service interaction with a core network, the conversion function between the control information/data of short-distance communication and the control information/data of cellular communication is realized through a basic function layer, and the specific forwarding/distribution/summarization of control signaling or data can realize a routing function through the basic function layer of the G node.
(3) Third example
Fig. 10 illustrates another cellular convergence user plane protocol stack, where a cellular convergence service function module is defined in a base application layer, and may directly invoke multiple base function modules in the base service layer to send and/or receive control information or data of a cellular convergence service, and add a base function layer between the base application layer and a TCP/UDP protocol layer. When a terminal T node wants to perform service interaction with a core network, a conversion function between control information/data of short-distance communication and control information/data of cellular communication is realized through a basic function layer, and specific forwarding/distribution/summarization of control signaling or data can realize a routing function through the basic function layer from the G node.
In addition, in the existing scheme, the G node can perform data transparent transmission between the terminal T node and the core network through a basic service layer; the method can also have a cellular convergence function, and can convert control information/data of short-distance communication and cellular communication into each other to participate in the service interaction process of the terminal T node and the core network. However, the present inventors considered that the traffic type of the T node is not singular and the traffic has concurrency, in other words, a plurality of different types of traffic are likely to be transmitted simultaneously. Moreover, only the G node may be needed to transmit the service types sensitive to time delay, high in safety and the like; services which are not sensitive to time delay and have high reliability requirements may require the G node to provide a cellular convergence function, and transfer control information/data of short-distance communication and cellular communication to each other. The inventor of the invention provides a scheme for optimizing the use time of the data transparent transmission and honeycomb fusion functions.
Specifically, in the embodiment of the present invention, in a scenario where the G node has both the transparent data transmission function and the cellular convergence function, for a use time of the transparent data transmission function and the cellular convergence function, the G node may perform autonomous opening according to a type of a received service, or the service triggers the G node to open a corresponding function, or the G node opens the transparent data transmission function and the 5G convergence function according to default settings. That is, the wireless short-range communication protocol stack architecture supports both the transparent transmission function of control information or data and the conversion function between the control information/data of short-range communication and the control information/data of cellular communication, and the two functions are independently turned on according to the service type, or the corresponding function is turned on by a service trigger management node (i.e., a G node), or turned on according to a default setting.
Fig. 11 shows a flow chart of a communication method according to a fourth embodiment of the invention. Referring to fig. 2 to 10, referring to fig. 11, an embodiment of the present invention provides a communication method implemented based on a preset wireless short-range communication protocol stack architecture, where the preset wireless short-range communication protocol stack architecture includes an access layer, a basic service layer, and a basic application layer, and the method includes:
Step S110: executing communication operation based on an access layer, a basic service layer and a basic application layer of a preset wireless short-distance communication protocol stack architecture, wherein the basic service layer comprises a plurality of basic function modules, and the basic application layer comprises a cellular convergence service function module;
in this step, the access layer, the basic service layer and the basic application layer of the preset wireless short-range communication protocol stack architecture are used for communication of control information or data. The basic service layer includes a plurality of basic function modules such as a device discovery or connection management module of a control plane and a synchronous transmission or asynchronous transmission module of a user plane. The basic application layer includes a cellular convergence service function module, such as a 5G convergence service function module, as shown in fig. 2, 5 and 8.
Step S120: and directly calling a plurality of basic function modules in the basic service layer through the cellular convergence service function module in the basic application layer to send and/or receive control information or data of the cellular convergence service.
In this step, when the control information (such as control signaling) or data of the cellular convergence service is transmitted and/or received, the cellular convergence service function module in the basic application layer directly calls the plurality of basic function modules in the basic service layer, unlike the existing scheme in which the cellular convergence service module in the basic application layer calls the cellular convergence function module in the basic service layer in a cross-layer manner and calls the plurality of basic function modules through the cellular convergence function module in the basic service layer, thereby reducing signaling overhead and design complexity.
In addition, the method further comprises: and performing conversion between the control information or data of the short-distance communication and the control information or data of the cellular communication through a cellular convergence service function module in the basic application layer. The invention improves the preset wireless short-distance communication protocol stack structure, so that the cellular fusion service function module in the basic application layer has the conversion function between the control information/data of short-distance communication and the control information/data of cellular communication, and can also forward, distribute or gather control signaling or data through the cellular fusion service function module to realize the routing of the control information or data.
In addition, the wireless short-range communication protocol stack structure supports the transparent transmission function of control information or data and the conversion function between the control information/data of short-range communication and the control information/data of cellular communication at the same time, and the two functions are independently started according to the service type, or the service triggers the management node to start the corresponding function, or the functions are started according to default settings. Therefore, the using time of the data transparent transmission and cellular fusion functions is optimized, and the optimal design is carried out for various communication scenes.
Fig. 12 shows a flow chart of a communication method according to a fifth embodiment of the invention. Referring to fig. 2 to 10, referring to fig. 12, an embodiment of the present invention provides a communication method implemented based on a preset wireless short-range communication protocol stack architecture, where the preset wireless short-range communication protocol stack architecture includes an access layer, a basic service layer, and a basic application layer, and the method includes:
Step S210: the method comprises the steps that communication operation is executed based on an access layer, a basic service layer and a basic application layer of a preset wireless short-distance communication protocol stack architecture, wherein the basic service layer comprises a plurality of basic function modules, and the preset wireless short-distance communication protocol stack architecture further comprises a basic function layer positioned between the basic service layer and the basic application layer;
in this step, the access layer, the basic service layer and the basic application layer of the preset wireless short-range communication protocol stack architecture are used for communication of control information or data. The basic service layer includes a plurality of basic function modules such as a device discovery or connection management module of a control plane and a synchronous transmission or asynchronous transmission module of a user plane. The default wireless short-range communication protocol stack architecture further includes a basic function layer located between the basic service layer and the basic application layer, as shown in fig. 3 and 4, fig. 6 and 7, and fig. 9 and 10.
Step S220: and performing conversion between the control information or data of the short-range communication and the control information or data of the cellular communication through a basic functional layer in a preset wireless short-range communication protocol stack architecture.
In this step, the function of conversion between the control information/data of short-range communication and the control information/data of cellular communication is realized through the basic functional layer, and the control information and data of cellular convergence service (short-range) and cellular convergence service (cellular) are converted. The basic function layer is used as an adaptation layer, which can well support a communication scene that a plurality of T nodes are connected with the same G node at the same time, for example, the G node can distinguish which T node the service belongs to/comes from, process multiplexing, flow control, wireless link failure recovery and the like of application services similar to the plurality of T nodes, and provide a good function expansion basis for communication requirements of multi-node concurrency and multi-service concurrency.
In addition, as shown in fig. 3, 6 and 9, the basic application layer includes a cellular convergence service module, and the basic service layer further includes a cellular convergence function module, where the cellular convergence service module calls the cellular convergence function module in the basic service layer in a cross-layer manner, and calls a plurality of basic function modules through the cellular convergence function module in the basic service layer, so as to perform sending and/or receiving of control information or data of the cellular convergence service. That is, the basic functional layers can be integrated into the wireless short-range communication protocol stack architecture shown in fig. 1.
As shown in fig. 4, 7 and 10, the basic application layer includes a cellular convergence service function module, and is configured to directly invoke a plurality of basic function modules in the basic service layer to send and/or receive control information or data of the cellular convergence service. That is, the basic functional layers can be integrated into the wireless short-range communication protocol stack architecture shown in fig. 2.
In addition, the method further comprises: and executing forwarding/distributing/summarizing of the control information or data of the short-distance communication and the control information or data of the cellular communication through a basic function layer in the preset wireless short-distance communication protocol stack architecture. The basic function layer is used as an adaptation layer and can forward/distribute/summarize control information and data of cellular convergence service (short distance) and cellular convergence service (cellular) so as to support a scene of multi-node concurrence and multi-service concurrence.
In addition, the basic function layer has the functions of any one of service identification, similar service multiplexing, flow control and wireless link failure recovery, so that the method can be well applied to scenes of multi-node concurrency and multi-service concurrency.
In addition, the wireless short-range communication protocol stack structure supports the transparent transmission function of control information or data and the conversion function between the control information/data of short-range communication and the control information/data of cellular communication at the same time, and the two functions are independently started according to the service type, or the service triggers the management node to start the corresponding function, or the functions are started according to default settings. Therefore, the use time of the data transparent transmission and cellular fusion functions is optimized, and the optimal design is made for various communication scenes.
An embodiment of the present invention provides a terminal device, including: a memory, a processor and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the communication method of any of the above embodiments. The specific technical details of the terminal device are described above, and are not described herein again.
Although not shown in detail, any device or apparatus forming part of a network may comprise at least a processor, a memory unit and a communication interface, wherein the processor unit, the memory unit and the communication interface are configured to perform the method of any aspect of the invention.
Claims (20)
1. A communication method is implemented based on a preset wireless short-range communication protocol stack architecture, wherein the preset wireless short-range communication protocol stack architecture comprises an access layer, a basic service layer and a basic application layer, and the method comprises the following steps:
executing communication operation based on an access layer, a basic service layer and a basic application layer of the preset wireless short-distance communication protocol stack architecture, wherein the basic service layer comprises a plurality of basic function modules, and the basic application layer comprises a cellular convergence service function module; and
and directly calling a plurality of basic function modules in the basic service layer through the cellular convergence service function module in the basic application layer to send and/or receive control information or data of the cellular convergence service.
2. The method of claim 1, wherein: in the step of sending and/or receiving the control information or data of the cellular convergence service, the cellular convergence service function module in the basic application layer directly calls a plurality of basic function modules in the basic service layer based on basic functions required by pre-configuration, pre-definition, base station configuration or core network configuration.
3. The method of claim 1, further comprising:
and performing conversion between the control information or data of the short-distance communication and the control information or data of the cellular communication through a cellular convergence service function module in the basic application layer.
4. The method of claim 1, wherein: the preset wireless short-distance communication protocol stack structure supports the transparent transmission function of control information or data and the conversion function between the control information/data of short-distance communication and the control information/data of cellular communication at the same time, and the two functions are independently started according to the service type, or the service triggers the management node to start the corresponding function, or the function is started according to default setting.
5. The method of claim 1, wherein: the plurality of basic function modules in the basic service layer include a device discovery or connection management module of a control plane and a synchronous transmission or asynchronous transmission module of a user plane.
6. The method of claim 1, wherein: the communication method is performed in a management node in a wireless short-range communication network.
7. The method of claim 1, wherein: the communication method is performed in a managed node in a wireless short-range communication network.
8. The method of claim 1, wherein: the preset wireless short-distance communication protocol stack architecture is a satellite flash system protocol stack architecture, and the cellular convergence service function module is a 5G convergence service function module.
9. A communication method, which is implemented based on a preset wireless short-range communication protocol stack architecture, where the preset wireless short-range communication protocol stack architecture includes an access layer, a basic service layer and a basic application layer, and the method includes:
executing communication operation based on an access layer, a basic service layer and a basic application layer of the preset wireless short-distance communication protocol stack architecture, wherein the basic service layer comprises a plurality of basic function modules, and the preset wireless short-distance communication protocol stack architecture further comprises a basic function layer positioned between the basic service layer and the basic application layer; and
and executing conversion between the control information or data of the short-distance communication and the control information or data of the cellular communication through a basic functional layer in the preset wireless short-distance communication protocol stack architecture.
10. The method of claim 9, wherein: the basic application layer comprises a cellular convergence service function module, and is used for directly calling a plurality of basic function modules in the basic service layer to send and/or receive control information or data of a cellular convergence service.
11. The method of claim 9, wherein: the basic application layer comprises a cellular convergence service module, the basic service layer further comprises a cellular convergence function module, and the cellular convergence service module calls the cellular convergence function module in the basic service layer in a cross-layer manner, calls the plurality of basic function modules through the cellular convergence function module in the basic service layer, and sends and/or receives control information or data of cellular convergence service.
12. The method of claim 9, further comprising:
and executing forwarding/distribution/summarization of the control information or data of the short-range communication and the control information or data of the cellular communication through a basic functional layer in the preset wireless short-range communication protocol stack architecture so as to support a scene of multi-node concurrence and multi-service concurrence.
13. The method of claim 12, wherein: the basic function layer has the functions of any one of service identification, similar service multiplexing, flow control and wireless link failure recovery.
14. The method of claim 9, wherein: the basic functional layer acts as an adaptation layer.
15. The method of claim 9, wherein: the preset wireless short-distance communication protocol stack structure supports the transparent transmission function of control information or data and the conversion function between the control information/data of short-distance communication and the control information/data of cellular communication at the same time, and the two functions are independently started according to the service type, or the service triggers the management node to start the corresponding function, or the function is started according to default setting.
16. The method of claim 9, wherein: the plurality of basic function modules in the basic service layer include a device discovery or connection management module of a control plane and a synchronous transmission or asynchronous transmission module of a user plane.
17. The method of claim 9, wherein: the communication method is performed in a management node in a wireless short-range communication network.
18. The method of claim 10, wherein: the preset wireless short-distance communication protocol stack architecture is a satellite flash system protocol stack architecture, and the cellular convergence service function module is a 5G convergence service function module.
19. A terminal device, comprising: memory, a processor and a program stored on the memory and executable on the processor, the program when executed by the processor to implement the method of claim 1.
20. A terminal device, comprising: memory, a processor and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the method of claim 9.
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| CN113259970B (en) * | 2021-05-08 | 2022-07-08 | Tcl通讯（宁波）有限公司 | Communication method and terminal device |
| CN115604699A (en) * | 2021-07-11 | 2023-01-13 | 惠州Tcl云创科技有限公司（Cn） | Network access method, electronic device and computer readable storage medium |
| CN115734266A (en) * | 2021-08-31 | 2023-03-03 | 惠州Tcl移动通信有限公司 | Data transmission measurement method and electronic equipment |
| CN115942255A (en) * | 2021-09-15 | 2023-04-07 | 华为技术有限公司 | Channel configuration method and device |
| CN115941226A (en) * | 2021-09-30 | 2023-04-07 | 华为技术有限公司 | Communication method and communication device |
| CN116032838A (en) * | 2021-10-25 | 2023-04-28 | 惠州Tcl移动通信有限公司 | Transmission method, electronic device, and computer-readable storage medium |
| CN116056157A (en) * | 2021-10-28 | 2023-05-02 | 惠州Tcl移动通信有限公司 | Method and equipment for node identity negotiation, change and information interaction under multi-domain scene |
| CN116112447A (en) * | 2021-11-11 | 2023-05-12 | 华为终端有限公司 | Method and device for configuring channel for transmitting multicast service |
| CN114449570B (en) * | 2022-01-26 | 2023-12-05 | 深圳Tcl新技术有限公司 | Communication domain measuring method, storage medium and wireless communication device |
| CN116319245B (en) * | 2023-05-17 | 2023-08-29 | 南京中科算通科技有限公司 | 5G protocol-oriented distributed test system |
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