CN117222006A - Wireless communication method and wireless communication device - Google Patents
Wireless communication method and wireless communication device Download PDFInfo
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Abstract
一种无线通信方法，执行于无线通信装置，所述无线通信装置作为星闪节点。所述星闪节点的网格功能模块从所述星闪节点的星闪基础应用层或星闪基础服务层接收业务流或数据流；所述网格功能模块标识所述业务流的一个或多个数据包为星闪系统的网格业务的一个或多个数据包；所述网格功能模块将业务流或数据流映射到网格流，所述的网格流包含基础服务层内部的网格数据流或基础服务层之外的网格数据流。
A wireless communication method is executed on a wireless communication device, and the wireless communication device serves as a starlight node. The grid function module of the StarLight node receives a business flow or data flow from the StarLight basic application layer or the StarLight basic service layer of the StarLight node; the grid function module identifies one or more of the business flows. Each data packet is one or more data packets of the grid service of the Starlight system; the grid function module maps the business flow or data flow to the grid flow, and the grid flow includes the network within the basic service layer. grid data flow or grid data flow outside the base service layer.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a wireless communication method, a storage medium, and a wireless communication device.
Background
The development of 5G technology has spawned a large number of intelligent terminals. Along with the large number of intelligent terminals connected in a wireless short distance, more updated application scenes are derived. The new wireless short-range application scene provides new requirements for the wireless short-range communication technology, and covers various aspects such as time delay, reliability, concurrency (multi-connectivity), information security and the like. However, although the existing typical wireless short-range communication technology has been developed for more than 20 years, its technical performance is also continuously improved, but is limited by requirements of technical forward compatibility, and there are some inherent limitations of technical performance, such as interference immunity, quality of service (Quality of Service, qoS) and communication delay (Latency), or technical potential in some aspects is approaching the ceiling, such as reliability and high-density deployment, so that the technical requirements of the emerging applications cannot be satisfied well.
Based on the analysis, the short-range communication technology of star flash wireless communication is emerging as an emerging short-range communication technology application, and is mainly used for carrying data interaction of application scenes in the fields of intelligent automobiles, intelligent households, intelligent terminals, intelligent manufacturing and the like. Each layer of the communication protocol stack of the star flash wireless communication system is composed of a star flash access layer, a basic service layer and a basic application layer from bottom to top. The star-flash access layer is divided into a management node (G node) and a terminal node (T node) according to different implementation functions, wherein the G node is a node of the star-flash access layer for transmitting data scheduling information, and the T node is a data node of the star-flash access layer for receiving the scheduling information and transmitting according to the data scheduling information. Considering that the service scene has differential transmission requirements for wireless short-distance communication, the current star flash 1.0 standard prescribes that a star flash access layer provides two communication interfaces, namely SLB and SLE for a star flash upper layer. The basic service layer provides modularized services for supporting upper layer services by defining different functional units, such as functional unit modules of connection management, measurement and the like.
Star flash wireless communication system architecture referring to fig. 1. In the star flash 1.0 standard, in the interaction process of the star flash device, data in each service flow of a basic application layer or data in each function of a basic service layer are mapped to a corresponding transmission channel of the basic service layer for transmission, and the data on the transmission channel is allowed to be mapped to logic channels of one or more star flash access layers for transmission according to the service requirement and the star flash access layer capacity; in addition, a scheme for data transmission and forwarding in the star flash relay scene is also defined.
Referring to fig. 2, specifically, data communication between a T node and a T node is realized by a basic service layer of a node (G node) having a relay capability, a relay transmission channel is established by a connection management function unit or the like of the basic service layer, and data transmission between nodes is realized by a data transmission and adaptation function unit of the basic service layer. However, star flash brings larger coverage area, higher reliability and the like to meet higher-order application scenes by introducing a distributed self-organizing (Mesh) network, and potential architecture, protocol stack, qoS configuration, transmission channel configuration, connection establishment and the like may be different from a star flash 1.0 short-distance system. Therefore, the protocol stack of the current star flash 1.0 and the scheme for processing the data transmission process are not necessarily applicable to the star flash distributed self-organizing network system.
Therefore, a wireless Mesh (Mesh) topology protocol architecture, functionality, and management scheme thereof based on star flash short-range technology are needed.
Disclosure of Invention
The application provides a wireless communication method, a storage medium and a wireless communication device.
In a first aspect, an embodiment of the present application provides a wireless communication method, which is performed in a wireless communication device, where the wireless communication device is a star flashnode, and the star flashnode includes:
the grid function module of the star flashover node receives a grid service flow or a grid data flow from a star flashover basic application layer or a star flashover basic service layer of the star flashover node; and
And the grid function module maps the grid service flow or the grid data flow to the data flow of the star flash basic service layer to become the grid service flow of the star flash basic service layer.
In a second aspect, an embodiment of the present application provides a wireless communications apparatus comprising a processor configured to invoke and execute a computer program stored in a memory to cause a device in which the processor is installed to perform the method of the first aspect disclosed above.
The disclosed methods may be programmed as computer-executable instructions stored in a non-transitory computer-readable medium. The non-transitory computer readable medium, when loaded into a computer, instructs the processor of the computer to perform the disclosed methods.
The non-transitory computer readable medium may include at least one of the group consisting of: hard disk, CD-ROM, optical storage, magnetic storage, read-only memory, programmable read-only memory, erasable programmable read-only memory (Erasable Programmable Read Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read Only Memory, EEPROM), and flash memory.
The disclosed methods can be programmed as a computer program product that causes a computer to perform the disclosed methods.
The disclosed methods may be programmed as a computer program that causes a computer to perform the disclosed methods.
The technical effects are as follows:
the application provides a wireless communication method and a wireless communication device, which enable a star flashover management node and a star flashover terminal node in a star flashover wireless communication system to receive paging information.
Drawings
Fig. 1 shows a schematic diagram of a current star flash wireless communication system architecture.
Fig. 2 is a schematic diagram showing data forwarding of the current transmission channel relay.
Fig. 3 shows a schematic diagram of a star flash wireless communication system.
Fig. 4 shows a schematic diagram of a protocol stack of the star flash wireless communication system.
Fig. 5 shows a schematic diagram of the classification of devices of star-flashing nodes into G-nodes and T-nodes.
Fig. 6 shows a schematic diagram of the structure of the star flash wireless communication system.
Fig. 7 shows a schematic diagram of an embodiment of a wireless communication method.
Fig. 8 shows a schematic diagram of a protocol architecture of a star flash Mesh functional unit.
Fig. 9 shows a schematic diagram of a management process of the star flash grid management function.
Fig. 10 shows a schematic diagram of a star flash mesh packet format.
Fig. 11 shows a schematic diagram of a protocol architecture of the star flash mesh adaptation layer.
Fig. 12 shows a schematic diagram of star flash Mesh traffic forwarding.
Fig. 13 shows a schematic diagram of a star flash packet format.
Detailed Description
Currently, the star flash 1.0 standard is designed around a single-hop (one hop) short-range network, a star flash relay (single hop) network and a single-hop short-range-5G cellular fusion network, and single links (i.e., star networks) cannot provide reliable, stable, long-range and high-speed end-to-end transmission chains in consideration of the appearance of smart home, augmented Reality (AugmentReality, AR), virtual Reality (VR), digital twinning, artificial intelligence (Artificial Intelligence, AI), remote assistance and other applications at present.
In view of the above, to achieve the above and other related objects, the present application provides a potential protocol architecture, functions, and management schemes thereof in a star-flash-based distributed ad hoc network.
The application provides a wireless communication method and a wireless communication device, which can enable an initiating terminal star-flashing terminal node in a star-flashing wireless communication system to judge that a connection can be established with a target terminal star-flashing terminal node on the direct path leading to the target terminal star-flashing terminal node in a star-flashing grid wireless network mode, or select a new path from a proper relay node to the target terminal star-flashing terminal node in the star-flashing grid wireless network again.
In a network architecture of the star-flash short-distance technology, nodes in a system are divided into management nodes (Grant nodes, G nodes or G-nodes), managed nodes are called Terminal nodes (Terminal nodes, T nodes or T-nodes), in a specific application scene, a single G Node manages a certain number of T nodes, and the G nodes and the T nodes are connected together to complete a specific communication function. A single G node and one or more T nodes connected thereto together form a communication domain. Generally, the star flash architecture is formed by connecting a single management node G node with a plurality of managed nodes T nodes, and together forming a communication domain to implement a specific communication function. For example, in an intelligent automobile scene, the automobile domain controller is used as a G node, and a plurality of vehicle-mounted terminals are used as T nodes, so that a communication domain of an intelligent cabin can be formed, and vehicle-mounted video and audio services can be provided for users. In the intelligent home environment, the intelligent large screen is used as a G node, and can be used as a T node with a plurality of sound equipment to form a communication domain, so that high-quality home audio-video service is provided for users. Under the intelligent manufacturing scene, each controller is used as a G node on a single production line of a factory, and is communicated with an actuator and a sensor in a local range as a T node to form a communication domain, so that the accurate control functions of assembly, packaging and the like are realized.
Please refer to fig. 3,5G, the core network 30 connects with the G node 20. The G node 20 connects a plurality of T nodes including T nodes 10a, 10b, and 10c, forms a star flash wireless communication system, and is in one communication domain.
Referring to fig. 4, the star flash wireless communication system is composed of a star flash access layer 110, the basic service layer 120, and the basic application layer 130. As shown in fig. 4, the star flash access layer 110 may also be referred to as a star flash base layer 101, and the base service layer 120 and the base application layer 130 form a star flash upper layer 102.
The star flash access layer 110 is divided into a management node (called G node) and a terminal node (called T node) according to different implementation functions, wherein the G node provides services of access layers such as connection management, resource allocation, information security and the like for the T node covered by the G node. The star flash access layer 110 realizes transmission interaction of upper layer service data of the G node and the T node on an air interface.
Referring to fig. 5, the star-flash node 20 includes a star-flash access layer 110a, the basic service layer 120a, and the basic application layer 130 a. The star flash access layer 110a may also be referred to as a star flash base layer 101a, and the base service layer 120a and the base application layer 130a form a star flash upper layer 102a. The star-flash node 10 comprises a star-flash access layer 110b, the basic service layer 120b and the basic application layer 130 b. The star flash access layer 110b may also be referred to as a star flash base layer 101b, and the base service layer 120b and the base application layer 130b form a star flash upper layer 102b. Star flashnode 20 may act as a G node. The star flashnode 10 may be referred to as a T node.
Considering that traffic scenarios have differentiated transmission requirements for wireless short-range communications, the star flash access layer 110 currently provides two communication interfaces, namely SparkLink Basic (SLB) 111 (e.g., SLB 111a and SLB 111 b) and Sparklink Low Energy (SLE) 112 (e.g., SLE 112a and SLE 112 b) for the star flash upper layer 102. The SLB 111 uses multiple technologies such as ultrashort frame, multipoint synchronization, bidirectional authentication, fast interference coordination, bidirectional authentication encryption, cross-layer scheduling optimization, etc., to support service scenarios with transmission requirements such as low latency, high reliability, precise synchronization, high concurrency, high security, etc. SLE 112 adopts Polar channel coding to promote transmission reliability, reduces retransmission and saves power consumption, supports maximum 4MHz transmission bandwidth and maximum 8PSK modulation, supports 1-to-many reliable multicast, supports 4KHz short delay interaction and other characteristics, fully considers energy-saving factors while ensuring transmission efficiency as much as possible, and is used for bearing service scenes with low-power consumption requirements. The SLB 111 and SLE 112 provide different transport services for different service requirements, complement each other and continue smooth evolution according to service requirements.
Referring to fig. 6, the communication system includes a network device 30a, a star flash management node 20a, and a plurality of star flash terminal nodes (including star flash terminal nodes 10a and 10 b). The communication system performs the disclosed methods according to one embodiment of the present disclosure. Fig. 6 shows an illustrative, non-limiting, system that may include many more network communication entities or network elements. The network device 30a may be an example of a 5G core network 30, for example the network device 30a may be one of the network devices in the 5G core network. The star flash management node 20a may be an example of the star flash management node 20 (fig. 4). The star flashover terminal nodes 10a and 10b may be examples of the star flashover terminal node 10 (fig. 4). Connections between components, between modules and module components, and between devices and device components are shown as lines and arrows in the figures. The star flash termination node 10a may include a processor 11a, a memory 12a, and a transceiver 13a. The star flash termination node 10b may include a processor 11b, a memory 12b, and a transceiver 13b. The star flash management node 20a may include a processor 21a, a memory 22a, and a transceiver 23a. The network device 30a may include a processor 31, a memory 32, and a transceiver 33. Each of the processors 31, 11a, 11b, and 21a may be configured to implement the proposed functions, procedures, and/or methods described in the description. Layers of the star flash protocol may be implemented in the processors 11a, 11b, and 21 a. The layers of the protocol of 5G may be implemented in the processors 31 and 21 a. Each of the memories 32, 12a, 12b and 22a may store various programs and information to cause the connected processor to operate to store various programs and access information to perform the proposed functions, procedures and/or methods. Each of the transceivers 33, 13a, 13b, and 23a is operatively coupled to a connected processor, transmitting and/or receiving radio signals or wired signals. The star flashover management node 20a may be a server, a base station or other type of radio node or wired node and may send information for the star flashover terminal node 10a and the star flashover terminal node 10b. The telecommunication system comprises a group of star flashover terminal nodes 14 and a group of star flashover terminal nodes 15. The star flashterminal node group 14 comprises a plurality of star flashterminal nodes, such as the star flashterminal node 10a. The star flashterminal node group 15 comprises a plurality of star flashterminal nodes, for example the star flashterminal node 10b.
Each of the processors 31, 11a, 11b, and 21a may include application-specific integrated circuits (ASICs), other chipsets, logic circuits, and/or data processing devices. Each of the memories 32, 12a, 12b, and 22a may include read-only memory (ROM), random access memory (random access memory, RAM), flash memory, memory cards, storage mediums, and/or other storage devices. Each transceiver 33, 13a, 13b, and 23a may include baseband circuitry and Radio Frequency (RF) circuitry to process radio frequency signals. When the present embodiments are implemented in software, the techniques described herein may be implemented with modules, programs, functions, entities, etc. to perform the functions described herein. These modules may be stored in the memory and executed by the processor. The memory may be implemented within the processor or external to the processor and it can be communicatively coupled to the processor via various means as is known in the art. A star flashnode may be a wireless communication device, such as a sensor, computer, mobile device, camera, or factory equipment having wireless communication capabilities.
The network device 30a may be a network element in a Core Network (CN). The CN may comprise an LTE CN or 5G core (5 GC), which includes network elements of: a User Plane function (User Plane Function, UPF), a session management function (Session Management Function, SMF), a mobility management function (Mobility Management Function, AMF), a unified data management (Unified Data Management, UDM), a policy Control function (Policy Control Function, PCF), a Control Plane (CP)/User Plane (UP) separation (CP/UP), an authentication server (Authentication Server, AUSF), a network slice selection function (Network Slice Selection Function, NSSF), and a network exposure function (Network Exposure Function, NEF).
Therefore, it is suggested that a wireless Mesh (Mesh) network, also called as a multi-hop (multi-hop) network, is introduced above the star flash 1.0 standard, and can meet the requirements of higher orders because the Mesh (Mesh) wireless network can have the characteristics of automatic fault repair, automatic networking and larger coverage.
In Mesh (Mesh) networks, there are no central device nodes, all nodes are connected to each other, each node has multiple connection channels, and the connections between all nodes form an integral network. When a certain line in the Mesh network is blocked or does not respond, the nodes in the wireless Mesh network can select other lines to carry out data transmission according to the situation, any node fault does not influence the access of the network, and the reliability is very high. The Mesh network can be automatically repaired when the Mesh network fails, so that the smooth operation of the wireless network is ensured. In addition, mesh networks are generally more popular than star networks in homes and intelligent buildings because they can be extended to countless nodes and cover long distances. The institute of electrical and electronics engineers (Institute of Electrical and Electronics Engineers, IEEE) 802.11s completed the standardization work of Mesh networks based on WIFI technology in 2011; in 7 months 2017, bluetooth SIG promulgated the Bluetooth Mesh (BLE Mesh) standard based on Bluetooth 4.0 underlay technology. The star-flash alliance is proposed to introduce a Mesh network in a star-flash short-distance technology, so as to meet the appearance of high-order applications such as intelligent families, AR, VR, digital twin, AI, remote assistance and the like at the present stage, and provide a more stable network, a higher transmission rate and a larger coverage range. However, the topology of the current Mesh (Mesh) wireless network, mesh discovery and management, mobility management, mesh security, and the like do not perform related standardization work. In view of the above, to achieve the above objects and other related objects, the present application provides a wireless Mesh topology structure based on a star flash short-distance technology, and a routing scheme thereof.
Reference herein to a data stream is to one or more data packets in a data stream. References herein to a traffic flow refer to one or more data packets in the traffic flow.
The application layer referred to herein is a star flash application layer, the basic service layer is a star flash basic service layer, and the access layer is a star flash access layer. The terms "unit" and "module" are used interchangeably herein. The service from the star flash application layer is a service flow, and the data and the control flow are not distinguished yet; the streams processed or generated by the base service layer are data streams, collectively referred to herein as both control data streams and user data streams.
Referring to fig. 7, the wireless communication method according to the present application is implemented in a wireless communication device as a star flashover terminal node (e.g., star flashover node 10). The star-flashing terminal node is used as an initiating terminal star-flashing terminal node. In one embodiment, the originating star flash terminal node is a remote function only node. Or in one embodiment, the initiating star flash terminal node is a node supporting both management functions and remote functions.
The grid function module of the star flashnode receives a traffic stream or a data stream from a star flashbase application layer or a star flashbase service layer of the star flashnode (A001). For example, the star flash base application layer includes star flash base application layers 130, 130a, and/or 130b; the star flash base service layer includes star flash base service layer packets 120, 120a, and/or 120b. In one embodiment, the grid function module of the star flashnode comprises a star flashgrid management function 201 (shown in fig. 8) at the star flashbase service layer. In one embodiment, the grid function module of the star flashnode includes a star flashgrid adaptation layer 210 (shown in FIG. 11) between a star flashbase application layer and the star flashbase service layer.
The star flashnode (e.g., the grid function module) uses a grid indication to identify the traffic stream or one or more data packets of the data stream as one or more data packets of the grid traffic of the star flashsystem (a 002). The grid indication distinguishes one or more data of the traffic or data stream from one or more data packets of non-grid traffic.
The grid function module maps the service flow or the data flow to the grid flow, wherein the grid flow can be the grid data flow inside the basic service layer or the grid data flow outside the basic service layer (A003). The mapping rules of the mapping at least comprise mapping according to any combination or one of the following:
a service identification (Application Identifier, AID);
a source port srcPort;
destination port dstPort;
a user equipment identity (user equipment identifier, UE ID);
grid indication;
DSCP; and
Grid traffic priority/attribute.
In certain embodiments, a002 and a003 are out of order. In certain embodiments, a002 is optional.
The star flashnode triggers an associated functional unit module of the star flashnode to service one or more data packets of the mesh stream (a 004). The related functional unit modules may be triggered by the grid functional module or one related functional unit module may trigger another related functional unit module. The functional unit modules may include unit modules in the star-flash basic service layer described in fig. 8 and 11, for example, one or more of the following modules:
1. a connection management function unit 213 of the star flash basic service layer;
qos management function 212; and
3. The data transmission and adaptation function 221.
One or more data packets of the mesh stream are transmitted over a logical channel through a star access layer of the star flashnode (a 005).
In one embodiment, the related functional unit module includes a connection management functional unit of the star flash node, and the wireless communication method further includes, prior to transmitting one or more data packets of the mesh stream over the logical channel through the star flash access layer of the star flash node:
the connection management function unit of the star flash node establishes a mesh transmission channel for one or more data packets of the mesh flow.
In one embodiment, the mesh transmission channel is a non-default dynamic mesh transmission channel established based on traffic transmission requirements of the mesh traffic flow.
In one embodiment, the associated functional unit module includes a quality of service (Quality of Service, qoS) management functional unit of the star flash base service layer of the star flash node, the wireless communication method further comprising, prior to transmitting one or more data packets of the mesh stream over the logical channel through the star flash access layer of the star flash node:
the QoS functional unit of the star flash node provides QoS information and configuration for the QoS management functional unit required by the grid service flow;
in one embodiment, the quality of service management function maps one or more data packets of the mesh flow to a quality of service QoS flow.
In one embodiment, the related functional unit module includes a data transmission and adaptation functional unit of the star flashnode, and the wireless communication method further includes, before transmitting one or more data packets of the mesh stream over the logical channel through the star flashaccess layer of the star flashnode:
the data transmission and adaptation functional unit performs data transmission and forwarding on one or more data packets of the mesh stream.
The forwarding of one or more data packets with respect to the mesh stream may be performed by the star flash mesh adaptation layer 210. The star-flash mesh adaptation layer of the star-flash node processes one or more data packets of the mesh flow to include routing information to provide information required to forward the one or more data packets of the mesh flow, wherein the routing information may include a user equipment identification (user equipment identifier, UE ID). And the star-flash grid adaptation layer of one star-flash management node reads the identification of one or more data packets of the grid flow, and forwards the one or more data packets of the grid flow to the receiving end of the one or more data packets of the grid flow according to the identification.
Embodiment one:
the protocol architecture of the star flash Mesh functional unit is schematically shown in fig. 8, a star flash Mesh management functional unit 201 is introduced into a basic service layer in the star flash system architecture, and functions of recognition of Mesh information flow between devices in a star flash Mesh network, configuration of a Mesh transmission pipeline, mesh data/signaling interaction and the like are realized and ensured through the introduced star flash Mesh management functional unit 201. In the present application, the Mesh traffic refers to a star-flash data stream (Non-IP) and an internet protocol (Internet Protocol, IP) stream processed by the star-flash base service layer 120 protocol layer.
Function of star flash grid management functional unit:
when a star flashover device (e.g., node 10, 10a, 10b, 20, and/or 20 a) has a mesh network function and successfully joins a star flashover mesh network, it may be referred to as a star flashover mesh device, indicating its capability to perform information/data interactions in the star flashover mesh network, etc. In the mesh network system, at least: the star-flashing grid T node, the star-flashing grid G node, the star-flashing grid T/G node and the like can be used as the star-flashing grid T node and the star-flashing grid G node, the star-flashing grid T node only supports the T node function, and the star-flashing grid G node only supports the G node function.
The star-flash grid management function unit 201 is mainly responsible for providing functions such as Mesh identification and mapping for the Mesh service flow of a specific function unit in the star-flash basic application layer 130 and the function unit of the star-flash basic service layer 120. Meanwhile, the star flash grid management functional unit 201 and the specific services provided by the functional units of other basic service layers together complete the interaction of Mesh data/signaling in the star flash grid network. The functional units of the other basic service layers at least comprise one of the following:
4. a connection management function unit 213 of the star flash basic service layer;
qos management function 212; and
6. The data transmission and adaptation function 221.
The specific services provided by the functional units of the star flash basic service layer 120 correspond to the following:
1. the connection management function unit 213 is required to establish a corresponding Mesh transmission channel;
2. the QoS management function 212 is required to provide QoS information and configuration; and
3. The data transmission and adaptation function 221 is required for data transmission and forwarding.
Management procedure of star flash grid management functional unit:
in the information interaction process between the star-flash grid devices, the star-flash grid management functional unit 201 identifies each service flow (identified by a port) of the star-flash basic application layer 130 and a data flow of a specific functional unit of the star-flash basic service layer 120, and then sends the identified data flow to the QoS management functional unit 212, and maps the identified data flow to a QoS flow through the QoS management functional unit 212; subsequently, the connection management function unit 213 is triggered to establish, release, and modify the corresponding Mesh transmission channel of the Mesh traffic flow through the information provided by the QoS flow, and the data transmission and adaptation function unit 221 performs Mesh data flow transmission and forwarding. Referring to fig. 9, the management procedure of the star flash mesh management functional unit is specifically as follows:
in step 1, the star flash grid management functional unit 201 receives the service flow from the star flash basic application layer 130 or the data flow of other specific functional units of the star flash basic service layer 120, and identifies the service flow or the data flow by using grid indication, wherein the grid indication is used for indicating that the current service flow is the service flow in the star flash grid, so as to achieve the purpose of distinguishing the current service flow from the original star flash service flow. Meanwhile, the star flash Mesh management function 201 maps the traffic or data flow to a Mesh data flow, and then maps the Mesh traffic flow to a QoS flow through the QoS management function 212. The data stream attributes processed by the star flash grid management function 201 may be represented by grid service priorities/attributes. The mapping rules of the mapping at least comprise mapping according to any combination or one of the following:
1. a service identification (Application Identifier, AID);
2. a source port srcPort;
3. destination port dstPort;
4. grid indication; and
5. Grid traffic priority/attribute.
The Mesh packet format 230, as shown in fig. 10 below, includes at least any one or any combination of the following: grid indication, grid traffic priority/attribute, len (length), application layer traffic data units (Service Data Unit, SDU), etc.
In step 2, the QoS management functional unit 212 receives the Mesh data stream from the star flash Mesh management functional unit 201, maps the Mesh data stream with the same or similar QoS requirements to the same QoS stream according to the QoS mapping rule, and may also map some specific star flash Mesh traffic streams to separate QoS streams. The QoS management function 212 is defined as a logical unit according to the star flash 1.0 standard. The mapping rule complies with the star flash 1.0 standard (star flash wireless communication system basic service layer quality of service control protocol).
Step 3, based on step 2, the QoS management function unit 212 triggers the connection management function unit 213, so that the connection management function unit 213 establishes a star flash Mesh transmission channel for the Mesh service flow. The star flash Mesh transmission channel may be divided into a default Mesh transmission channel and a non-default/dynamic Mesh transmission channel. The default Mesh transmission channel is mapped onto the default bearer of the star flash access layer, and when the default bearer of the access layer is established, the default Mesh transmission channel is automatically established. And 3, the star flash Mesh transmission channel is a non-default/dynamic Mesh transmission channel established based on the service transmission requirement of the grid service flow.
Step 4, the processed star flash Mesh data in the star flash basic service layer 120 is submitted to a local logic channel through a Mesh transmission channel and then is submitted to an opposite-end star flash Mesh device, wherein the data transmission and adaptation function unit 221 of the star flash basic service layer 120 defines a processing function of the Mesh transmission channel on the star flash Mesh data in the Mesh data transmission process.
Embodiment two:
the protocol architecture of the star-flash Mesh adaptation layer 210 is schematically shown in fig. 11, the star-flash Mesh adaptation layer 210 is introduced between the star-flash basic service layer 120 and the star-flash basic application layer 130 in the star-flash system architecture, and functions of identification (recognition), mapping, forwarding, aggregation and the like of Mesh traffic flows between devices in the star-flash Mesh network are realized and ensured through the introduced star-flash Mesh adaptation layer 210. In one embodiment of the present application, the Mesh traffic includes a star-flash data stream (Non-IP) processed by the star-flash basic service layer 120 protocol layer and an IP stream of an internet protocol (Internet Protocol, IP) protocol stack. The star flash mesh adaptation layer 210 may include a star flash mesh adaptation layer 210a for processing a star flash data stream and a star flash mesh adaptation layer 210b for processing an IP stream.
Function of star flash mesh adaptation layer:
when a star flashover device (e.g., node 10, 10a, 10b, 20, and/or 20 a) has a mesh network function and successfully joins a star flashover mesh network, it may be referred to as a star flashover mesh device, indicating its capability to perform information/data interactions in the star flashover mesh network, etc. In the mesh network system, at least: the star-flashing grid T node, the star-flashing grid G node, the star-flashing grid T/G node which can be used as the star-flashing grid T node and the star-flashing grid G node, and the like, wherein the star-flashing grid T node only supports the T node function, and the star-flashing grid G node only supports the G node function. The star flash Mesh adaptation layer 210 is mainly responsible for providing functions of identification, collection, forwarding/routing and the like for the Mesh service flow of the star flash basic application layer 130, and transmitting the Mesh service flow to the opposite star flash device through the basic service layer and the star flash access layer of the star flash device to complete the interactive transmission process of Mesh data/signaling in the star flash Mesh network.
Management process of star flash grid adaptation layer:
in the information interaction process between the star flashover grid devices, the star flashover basic application layer 130 identifies and aggregates each service flow (via port identification) through the star flashover grid adaptation layer 210, and submits the service flow to the opposite star flashover grid device through the star flashover basic service layer 120 and the star flashover access layer at the local end. In the case of single/multi-hop transmission scenarios in a star-flash Mesh network, the forwarding of the star-flash Mesh traffic is performed at the star-flash Mesh adaptation layer 210. As shown in fig. 12, a star flash mesh adaptation layer 210 in the sender of the data packet (e.g., T node T1 or T node T2) identifies one or more data packets of the mesh flow to provide information required to forward the one or more data packets of the mesh flow. The star-flash mesh adaptation layer 210 of the G node G1 reads the identity of one or more data packets of the mesh flow, and forwards the one or more data packets of the mesh flow to a receiving end (e.g., T node T2 or T node T1) of the data packets according to the identity (e.g., UEID). The identification of the data packet may contain a UEID. Examples of either of the T nodes T1 or T2 may include nodes 10, 10a, and/or. Examples of the G node G1 may include nodes 20 and/or 20a.
The star flash grid adaptation layer 210 is managed by the following specific steps:
step 1, the service flow of the star flash basic application layer 130 is sent to the star flash grid adaptation layer 210, the star flash grid adaptation layer 210 uses grid indication to identify the service flow, and the grid indication is used for indicating that the current service flow is the service flow in the star flash grid network, so as to achieve the purpose of distinguishing the original star flash service flow. Optionally, in order to achieve the purposes of routing (multi-hop), information such as a star flash device identifier may be added to the packet header of the data packet of the service flow; in order to achieve the mapping purpose of the service flow, information such as grid service priority/attribute or DSCP can be added in the packet header of the data packet of the service flow. The Mesh packet format is shown in fig. 13, and the Mesh packet at least includes any one or any combination of the following: grid indication, user equipment identity (user equipment identifier, UE ID), grid traffic priority/attribute, differentiated services code point (Differentiated Services Code Point, DSCP), len (length), SDU of application layer, etc. The UE ID may be an identifier of the home terminal device, or may be an identifier of the relay device, or may be an identifier of the destination device.
Step 2, the star flash Mesh adaptation layer 210 maps the star traffic of the identified application layer to a Mesh flow through the star flash Mesh adaptation layer 210, the QoS management function unit 212 on the star flash basic service layer 120 maps the Mesh flow to a QoS flow, and the Mesh flow attribute processed by the star flash Mesh adaptation layer 210 may be represented by a Mesh service priority/attribute. The mapping rules of the mapping at least comprise mapping according to any combination or one of the following:
1.AID；
2.srcPort；
3.dstPort；
4.UEID；
5. grid indication;
dscp; and
7. Grid traffic priority/attribute.
Step 3, the star flash Mesh stream processed by the star flash Mesh adaptation layer 210 is submitted to the star flash basic service layer 120, and relevant functional unit modules of the star flash basic service layer 120 are triggered to provide services for the star flash basic service layer, for example, the QoS management functional unit 212 is triggered to provide QoS information and configuration, and the connection management functional unit 213 is required to establish a corresponding Mesh transmission channel, which refers to the star flash 1.0 [ transmission standard ] standard, or embodiment 1. And 3, the star flash Mesh transmission channel is a non-default/dynamic Mesh transmission channel established based on the service transmission requirement of the grid service flow.
And 4, based on the step 3, the star flash Mesh data processed by the star flash basic service layer 120 is submitted and transferred to a logic channel of a star flash access layer of the local terminal, and then is submitted to opposite-terminal star flash grid equipment.
While the present disclosure has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the present disclosure is not to be limited to the disclosed embodiment, but is intended to cover various arrangements included within the scope of the foregoing broadest interpretation of the appended claims.
Claims (14)
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