CN117221827A - Wireless communication method and wireless communication device - Google Patents
Wireless communication method and wireless communication device Download PDFInfo
- Publication number
- CN117221827A CN117221827A CN202210772526.6A CN202210772526A CN117221827A CN 117221827 A CN117221827 A CN 117221827A CN 202210772526 A CN202210772526 A CN 202210772526A CN 117221827 A CN117221827 A CN 117221827A
- Authority
- CN
- China
- Prior art keywords
- broadcast message
- system broadcast
- extended system
- information
- wireless communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims abstract description 88
- 230000005540 biological transmission Effects 0.000 claims description 140
- 230000006870 function Effects 0.000 claims description 59
- 230000008859 change Effects 0.000 claims description 24
- 230000015654 memory Effects 0.000 claims description 22
- 230000006978 adaptation Effects 0.000 claims description 19
- 102100035971 Molybdopterin molybdenumtransferase Human genes 0.000 claims description 15
- 101710119577 Molybdopterin molybdenumtransferase Proteins 0.000 claims description 15
- 238000004378 air conditioning Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 235
- 238000007726 management method Methods 0.000 description 36
- 238000005516 engineering process Methods 0.000 description 23
- 238000010586 diagram Methods 0.000 description 14
- 125000004122 cyclic group Chemical group 0.000 description 13
- 238000012545 processing Methods 0.000 description 12
- 230000003993 interaction Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000013523 data management Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 208000032369 Primary transmission Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007781 signaling event Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
A wireless communication method is performed in a wireless communication device that is a transmitting end node of star flash communication. An access layer of a star flash Basic version (SLB) of star flash communication of the sending end node receives broadcast data of an upper layer of the access layer, and generates an extended system broadcast message carrying the broadcast data of the upper layer through the access layer of the SLB. And sending the extended system broadcast message through the access layer of the SLB.
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.
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.
Short-range wireless communication is used as a complementary technology to long-range communication, and aims to solve the performance bottleneck problem of 'last hundred meters' of end-to-end communication. Short-range communication is mainly used for scenes where a space area is small and a transmission distance is short, such as a home, an office, a laboratory, a building, a campus, a workshop, a factory, or the like. With the continuous evolution of the cellular wireless communication technology, a wide foundation is provided for the application of the communication technology, the application scene and the demand of the wireless communication are increased in an explosive manner, and the appearance of new demands of new scenes also puts higher demands on the short-distance wireless communication. For example, higher capacity requirements are required for the system in order to accommodate more device access networks. For example, the advent of new applications such as augmented Reality (AugmentReality, AR) or Virtual Reality (VR) requires short-range communications to support low latency, higher transmission bandwidths, transmission rates, and transmission quality. Scenes such as automatic driving and intelligent manufacturing have higher requirements on short-play communication in terms of time delay, reliability, safety and the like. Under the background, the star-flash new short-distance wireless communication technology has been developed, and the star-flash new short-distance wireless communication technology takes the Internet of things as a main application scene and takes the requirements of high performance indexes such as ultra-low time delay, high reliability, interference resistance, high safety, accurate synchronization and the like as design targets.
Broadcasting is a highly efficient wireless communication method, and is widely used in various wireless communication technologies. One-to-many data transmission can be realized by broadcasting, and on one hand, one transmitting end node can transmit one data through an air interface for a plurality of receiving end nodes to receive. Therefore, compared with unicast of one-to-one transmission, broadcast service has great advantages in terms of saving air interface resources, improving system capacity and the like. On the basis of the broadcast content of the existing star flash new short-range wireless communication technology, an extended broadcast message can be introduced to extend the communication efficiency of different application scenes.
Therefore, there is a need for a wireless communication method of broadcast messages based on the star flash short range technology.
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 apparatus as a transmitting end node of star flash communication, and includes:
an access layer of a star flash Basic version (SLB) of star flash communication of the sending end node receives broadcast data of an upper layer of the access layer, and generates an extended system broadcast message carrying the broadcast data of the upper layer through the access layer of the SLB; a kind of electronic device with high-pressure air-conditioning system
And sending the extended system broadcast message through the access layer of the SLB.
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.
In a third aspect, an embodiment of the present application provides a wireless communication method, performed in a wireless communication apparatus as a receiving end node of star flash communication, including:
the receiving end node receives the broadcast message of the expansion system through an access layer of a star link Basic version (SLB) of the receiving end node;
the access layer of the SLB of the receiving end node transmits the extended system broadcast message to an upper layer of the access layer of the SLB of the receiving end node to process broadcast data in the extended system broadcast message.
In a fourth 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 invention provides a wireless communication method and a wireless communication device, which enable an access layer of a star link Basic version (SLB) to receive broadcast data of an upper layer of the access layer, and generate an extended system broadcast message carrying the broadcast data of the upper layer through the access layer of the SLB. The extended system broadcast message contains one or more of the following types: device discovery auxiliary extension system broadcast messages, service discovery auxiliary extension system broadcast messages, positioning auxiliary extension system broadcast messages, and base application layer extension system broadcast messages. The invention can expand the support of SLB to different broadcast messages.
Drawings
Fig. 1 shows a schematic diagram of a star flash wireless communication system.
Fig. 2 shows a schematic diagram of a protocol stack of the star flash wireless communication system.
Fig. 3 shows a schematic diagram of a device classification of star-flashing nodes into G-nodes and T-nodes.
Fig. 4 shows a schematic diagram of the structure of the star flash wireless communication system.
Fig. 5 shows a schematic diagram of an embodiment of a wireless communication method.
Fig. 6 shows a schematic diagram of an embodiment of a wireless communication method utilizing dynamic scheduling information.
Fig. 7 is a schematic diagram of an embodiment of a wireless communication method utilizing semi-static scheduling information.
Fig. 8 shows a schematic diagram of protocol data units (Protocol Data Unit, PDU) and service data units (Service Data Unit, SDU) of an extended system broadcast message in a star flash access layer.
Fig. 9 shows a schematic diagram of an extended system broadcast message in a star flash communication basic service layer.
Fig. 10 is a diagram illustrating an embodiment of a receiving end node utilizing dynamic scheduling information in a wireless communication method.
Fig. 11 is a diagram illustrating an embodiment of a receiving end node utilizing semi-persistent scheduling information in a wireless communication method.
Fig. 12 is a schematic diagram of an embodiment of discovering an auxiliary extension system broadcast message at an interlayer transmission device in a wireless communication method.
Fig. 13 is a schematic diagram of an embodiment of transmitting a service discovery assistance extension system broadcast message between layers in a wireless communication method.
Fig. 14 is a schematic diagram of an embodiment of transmitting a basic application layer extension system broadcast message between layers in a wireless communication method.
Detailed Description
The invention provides a wireless communication method and a wireless communication device.
The star flash new short-distance wireless communication adopts a three-layer protocol architecture. The protocol stack of the star-flash short-range wireless communication system comprises an access layer, a basic service layer and a basic application layer. The base application layer provides protocol support for audio streaming services, video streaming services, data transmission services, and formulates application specific profiles (profiles). The star flash basic service layer provides a unified and complete functional interface for specific application of the basic application layer, and comprises functional units of equipment discovery, service discovery, connection management, service quality (Quality of Service, qoS) management, security management, multi-domain coordination, measurement management and the like, a control plane of the basic service layer establishes connection and configures transmission parameters, a data plane of the basic service layer performs data transmission, and the transmission quality is measured. The star flash access layer provides a pipeline for air interface transmission for the basic service layer, supports the functions of the basic service layer and QoS required by data transmission, and can bear deterministic synchronous data transmission and asynchronous data transmission.
The term annotation:
t node: a terminal node in the star flash communication system receives the data scheduling information and transmits data according to the data scheduling information;
g node: and a management node in the star flash communication system, and a node for transmitting data scheduling information.
In a specific application scenario, a single G node manages a certain number of T nodes, and the G node and the T nodes are connected together to complete a specific communication function.
Communication domain: the single G node and the T node connected with the single G node together form a communication domain.
Advanced communication domain: in the multi-communication domain scenario, the G node of the advanced communication domain transmits the resources used by the general communication domain.
Low priority communication domain: in the multi-communication domain scenario, a general communication domain G node receives a resource of a general communication domain transmitted by a G node of an advanced communication domain, and generates the general communication domain according to the resource.
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. 1,5G, 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. 2, 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. 2, 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. 3, the star flashnode 20 includes a star flashaccess 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 for the star flash upper layer 102, namely a star flash Basic version (SLB) 111 (e.g., SLB 111a and SLB 111 b) and a star flash low power version (Sparklink Low Energy, SLE) 112 (e.g., SLE 112a and SLE 112 b). 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. 4, 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. 4 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. 3). The star flashover terminal nodes 10a and 10b may be examples of the star flashover terminal node 10 (fig. 3). 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).
Broadcasting is a highly efficient wireless communication method, and is widely used in various wireless communication technologies. One-to-many data transmission can be realized in a broadcasting mode, and on one hand, one sending end node can send one data through an air interface for a plurality of receiving end nodes to receive; on the other hand, the transmitting end node may send the scheduling information of the broadcast data only once before the broadcast service starts, indicating the time-frequency position of the broadcast data transmission. The time-frequency locations comprise time-domain locations and frequency-domain locations. The receiving end node can receive the broadcast data for multiple times according to the indication in the scheduling information, which is different from the time-frequency resource which is required to be indicated by the control information for each service transmission in the dynamic scheduling. Therefore, compared with unicast of one-to-one transmission, broadcast service has great advantages in terms of saving air interface resources, improving system capacity and the like. The sender node may be a G node or a T node (e.g., G node or T node in fig. 4). The receiving end node may be a G node or a T node (e.g., G node or T node in fig. 4).
Referring to fig. 5, the wireless communication method according to the present invention is performed in a wireless communication apparatus as a star flashnode (e.g., star flashnode a or C). The star flashover terminal node is used as a receiving end node or a transmitting end node for star flashover communication.
For example, sender node C includes one or more sender nodes. The sender node C may be a G node or a T node (e.g., G node or T node in fig. 1-4). The following steps of embodiments of the present invention are performed for each sender node in the initial set of broadcast nodes. For simplicity of description, the following transmitting end node may be any transmitting end node in the initial broadcast node set.
For example, receiving end node a includes one or more receiving end nodes. The receiving end node a may be a G node or a T node (e.g., G node or T node in fig. 1-4).
An access layer of a star flash Basic version (SLB) of star flash communication of the transmitting end node receives broadcast data of an upper layer of the access layer, and generates an extended system broadcast message (a 001) carrying the broadcast data of the upper layer through the access layer of the SLB.
In one embodiment, the extended system broadcast message is generated by an application of a base application layer of the sender node; a device discovery auxiliary extension system broadcast message for device discovery is generated by a device discovery function unit of the transmitting end node; or a service discovery auxiliary extension system broadcast message for service discovery is generated by a service management function unit of the sender node, e.g. the service management function unit 301 of fig. 13.
The transmitting end node transmits the extended system broadcast message (a 002) through an access layer of the SLB.
The receiving end node receives the extended system broadcast message through an access layer of the receiving end node's SLB (a 003).
The access layer of the SLB of the receiving end node transmits the extended system broadcast message to an upper layer of the access layer of the SLB of the receiving end node to process broadcast data in the extended system broadcast message (a 004).
The extended system broadcast message contains one or more of the following types: device discovery auxiliary extension system broadcast messages, service discovery auxiliary extension system broadcast messages, positioning auxiliary extension system broadcast messages, and base application layer extension system broadcast messages.
The SLB access layer of the star flash wireless communication system supports broadcast messages and system messages. The broadcast message and the system message are used for the receiving end node to acquire the information of the transmitting end node (i.e. the communication domain management G node) before the wireless link connection is established with the transmitting end node, so as to successfully access the communication domain to which the G node belongs. Both the broadcast message and the system message are sent in a broadcast manner.
Referring to fig. 6, the transmitting end node transmits a broadcast message including the extended system broadcast message enable flag bit (B001). The receiving end node receives a broadcast message, wherein the broadcast message includes the extended system broadcast message enable flag bit (B002).
The transmitting end node transmits dynamic scheduling information of configuration information of the extended system broadcast message, wherein the dynamic scheduling information indicates time-frequency resources (B003) of the configuration information of the extended system broadcast message. The receiving end node receives dynamic scheduling information of configuration information of the extended system broadcast message, wherein the dynamic scheduling information indicates time-frequency resources of the configuration information of the extended system broadcast message (B004).
The transmitting end node transmits configuration information of the extended system broadcast message, wherein the configuration information indicates information (B005) of message type and time resource of the extended system broadcast message. The receiving end node receives configuration information of the extended system broadcast message, the configuration information indicating a message type of the extended system broadcast message and information of time-consuming resources (B006). The configuration information of the extended system broadcast message may indicate more configurations, and specific content refers to the embodiment "configuration information of the extended system broadcast message".
Wherein the transmitting end node performs transmission of the extended system broadcast message through the access layer of the SLB according to the configuration information of the extended system broadcast message (B007). Wherein the receiving end node performs receiving the extended system broadcast message through the access layer of the SLB according to the configuration information of the extended system broadcast message (B008).
Referring to fig. 7, the transmitting end node transmits a broadcast message including the extended system broadcast message enable flag bit (C001). The receiving end node receives a broadcast message, wherein the broadcast message includes the extended system broadcast message enable flag bit (C002).
The transmitting end node transmits semi-static scheduling information of the extended system broadcast message, and the semi-static scheduling information of the extended system broadcast message indicates configuration information of the extended system broadcast message (C003). The receiving end node receives semi-static scheduling information of the extended system broadcast message, wherein the semi-static scheduling information of the extended system broadcast message indicates configuration information of the extended system broadcast message (C004).
And sending the extended system broadcast message through the access layer of the SLB according to the configuration information of the extended system broadcast message. (C005). And receiving the extended system broadcast message through the access layer of the SLB according to the configuration information of the extended system broadcast message. (C006).
And the 1 st position of the reserved bit in the enabling flag bit is 1, which indicates that an extended system broadcast message exists. And the 1 st position of the reserved bit in the enabling flag bit is 0, which indicates that no extended system broadcast message exists.
The broadcast message is defined as follows:
broadcast information and corresponding cyclic redundancy check (Cyclic redundancy check, CRC) of 63 bits (bits) in total, carrying physical layer configuration parameters, from least significant bits to most significant bits, comprising the following information:
1 bit: cyclic prefix information. 0 indicates a normal cyclic prefix and 1 indicates an extended cyclic prefix.
1 bit: the radio frame structure includes an indication of whether or not GT is included. 0 indicates that GT is not included, and 1 indicates that GT is included.
4 bits: initial radio frame symbol proportioning information. When a conventional cyclic prefix is adopted, 0-13 respectively indicate wireless frame structures 0-13 in table 2 of the standard of 2021-0136T-YD_wireless short-range communication on-board air interface technical requirements and test method; when an extended cyclic prefix is employed, 0-11 indicates the radio frame structures 0-11 in table 3 of the standard, respectively.
16 bits: a superframe number. Indicating the superframe number of the first superframe among the consecutive 4 superframes in which the broadcast information is transmitted.
3 bits: within a superframe, a start position N of broadcast information offset Is a piece of instruction information. With six radio frames as granularity, the radio frame number N where the starting position of the broadcast information is located offset Is 6 x the value of the field.
2 bits: the G node sends symbol number information N of the G link control information communication domain common resource, 00 indicates 4 symbols, 01 indicates 8 symbols, 10 indicates 12 symbols, and 11 reserves. The G-link control information communication domain common resource starts N consecutive radio frames within the superframe from a radio frame immediately after the radio frame transmitting the second training signal (Secondary Training Signal, STS) signal, using a last overhead symbol in each of the radio frames.
1 bit: broadcast information or system message change instruction information, 0 indicates that broadcast information and system message are not changed in the next change period, and 1 indicates that broadcast information or system message is changed in the next change period.
2 bits: a change period of broadcast information or a system message, 00 indicates 512 superframes, 01 indicates 1024 superframes, 10 indicates 2048 superframes, and 11 indicates 4096 superframes.
9 bits: reserved bits, the current version is all 0;
24 bits: according to the processing method of section 6.9.1 of the standard of the '2021-0136T-YD_wireless short-distance communication vehicle-mounted air interface technical requirement and test method', a cyclic redundancy check generation polynomial g is used CRC24B (D)g CRC24B (D) A cyclic redundancy check sequence is calculated.
The system message is defined as follows:
table 1
Wherein:
the domainsysinfo period is used to indicate a transmission period of a communication domain system message, SF64 indicates a multiple of 64 of a start number of a superframe in which the system message may be transmitted, SF128 indicates a multiple of 128 of a superframe in which the system message may be transmitted, SF256 indicates a multiple of 256 of a start number of a superframe in which the system message may be transmitted, and SF512 indicates a multiple of 512 of a superframe in which the system message may be transmitted;
The domainsysinforondustion is used to indicate the number of consecutive superframes that may be used by the communication domain system message in one transmission period, SF8 indicates that the system message is transmitted in at most 8 consecutive superframes from the start superframe number, SF16 indicates that the system message is transmitted in at most 16 consecutive superframes from the start superframe number, SF32 indicates that the system message is transmitted in at most 32 consecutive superframes from the start superframe number, and SF64 indicates that the system message is transmitted in at most 64 consecutive superframes from the start superframe number;
multidomain syncinfo for indicating multidomain synchronization information;
the domainName is used to indicate the domain name of the communication domain;
the domainID is used to indicate a communication domain identity;
the carrier channel conf is used to indicate the channel number of a plurality of accessible carriers;
non contentionaccessresource is used to configure non-contention access related resources and parameters;
the contentionAccessResource is used to configure resources and parameters related to contention access;
ACK-ResourceSetConf for configuration of ACK resources;
domainCoordination is used to configure multi-domain resources;
accessControl is used to indicate whether different types of device access are allowed, wherein the first bit (low) corresponds to the off-vehicle device, the second bit (low) corresponds to the on-vehicle device, and the other bits remain, wherein 0 indicates that device access is allowed, and 1 indicates that device access is not allowed;
keyAlgNegotiation is used to indicate the key agreement algorithm between the G node and the T node.
As can be seen from the above definition of the broadcast message and the system message, the SLB access layer of the current star flash system adopts a fixed broadcast message format, that is, only the two types of broadcast messages can be sent by broadcasting, and the receiving of the data of the basic service layer and/or the basic application layer as the content of the broadcast message is not supported. The underlying service layer also does not define a corresponding process flow for the underlying service layer and/or underlying application layer to transmit data available for propagation to the SLB access layer. However, if the extended broadcast message is introduced based on the existing broadcast content, more information can be acquired before the star-flash T node or the low-priority G node establishes the star-flash wireless link connection with the communication domain G node or the high-priority communication domain G node, so that the basic service layer functions of device discovery, service discovery, positioning and the like can be more efficiently executed. On the other hand, the data of the basic application layer is carried by the broadcast message of the expansion system, so that connectionless data transmission can be realized, and the application scene of the star flash high-level application can be expanded.
Therefore, the patent proposes supporting the extended system broadcast message based on the SLB access layer in the star flash protocol, and proposes the corresponding enhancement of the SLB access layer and the basic service layer after the extended system broadcast message is introduced, and the transmission process of the extended system broadcast data among the basic application layer, the basic service layer and the SLB access layer.
The definition of the extended system broadcast message and the processing procedures of the SLB access layer, the basic service layer and the basic application layer at the star-flashing node will be described below by way of example. Herein, unless otherwise indicated, a base service layer, a base application layer, and an SLB access layer refer to the base service layer, the base application layer, and the SLB access layer, respectively, in star flash communication.
Embodiment one: definition of extended system broadcast messages
The extended system broadcast message may enable the star flashover node to receive more communication domain information through the broadcast link before establishing a unicast wireless link connection with the communication domain management node (G node), e.g. the extended system broadcast message carries information related to device discovery, or service discovery related information, or connectionless data service transmission, etc. In the present embodiment, an example of an extended system message will be given:
the source of the broadcast message of the extension system:
the original data information of the extended system message may be generated by functional units of the basic service layer, for example, a device discovery auxiliary extended system broadcast message for device discovery is generated by a device discovery functional unit of the transmitting end node, and a service discovery auxiliary extended system broadcast message for service discovery is generated by a service management functional unit (e.g., service management functional unit 301 of fig. 13) of the transmitting end node; or the extended system broadcast message is generated by an application program of a basic application layer of the transmitting end node, for example, the application program transmits the self-defined advertisement information as broadcast data to a basic service layer, and the broadcast information is transmitted to an access layer through the basic service layer and is transmitted to a star flash node in a communication domain through the extended system broadcast message;
Extension message type:
the extended system broadcast message contains one or more of the following types: device discovery auxiliary extension system broadcast messages, service discovery auxiliary extension system broadcast messages, positioning auxiliary extension system broadcast messages, and base application layer extension system broadcast messages.
The device discovery auxiliary extension system broadcasts a message:
the device discovery auxiliary extension system broadcast message carries information for device discovery, including discoveree public information defined in 'star flash basic service layer device and service discovery standard', including device discovery level and the like, and may further include one or more of the following information:
device type; for identifying the type of device, such as a television, a printer, etc.; a kind of electronic device with high-pressure air-conditioning system
Power supply mode; for identifying the power mode of the device, such as using battery power or ac/dc power.
The service discovery auxiliary extension system broadcasts a message:
the service discovery auxiliary extension system broadcast message carries information for assisting the star flashover node to execute service discovery, the service discovery auxiliary information is carried by the extension system broadcast message, the star flashover node can acquire information that the communication domain G node can provide service before establishing star flashover wireless link connection with the communication domain G node, and the information is used for the star flashover node to determine whether the star flashover wireless link needs to be established with the star flashover node.
The service discovery auxiliary extension system broadcast message contains one or more of the following information:
generic service: the general service refers to a service irrelevant to the type of the device, such as whether multi-domain coordination is supported or not, whether positioning is supported or not, and the like;
● Device specific services: the device-specific service refers to a service that can be provided by a specific device, such as whether a printer can provide color printing; whether the washing machine provides a drying service, etc.;
the declaration and definition of the service refers to a service management section in a star flash basic service layer device and service discovery standard;
the positioning assistance extension system broadcasts a message:
the positioning auxiliary extension system broadcast message is used for sending positioning related information, and the extension system broadcast message carries positioning information, such as the position information of the current node or position reference signals used for other node measurement, and the like, so that the star flashover node can acquire part of positioning auxiliary information without establishing a star flashover link with the communication domain G node. The communication domain G node can publish own position information to other star-flashing nodes (such as periodically updating the position information for a position service subscriber) or assist other star-flashing nodes to position (such as by measuring position reference signals, performing multi-node joint positioning) by sending a positioning auxiliary extension system broadcast message;
The positioning assistance extension system message contains one or more of the following information:
location information of the communication domain G node, such as encrypted longitude, latitude, altitude, etc.;
positioning reference signals, such as single frequency signals for phase measurements in positioning applications, ZC sequences (Zadoff-Chu sequences) or Gold sequences for propagation time measurements or received signal quality measurements, etc.;
the basic application layer extension system broadcasts a message:
the basic application layer expansion system broadcast message is used for bearing the broadcast requirement of an application layer, for example, the application layer of the communication domain G node can send advertisement information to surrounding star-flashing nodes or early warning information in an emergency state through the expansion system broadcast message. The message content of the basic application layer extension system broadcast message is generated by the application layer, and the basic service layer sets the message type as the basic application layer extension system broadcast message after receiving the basic application layer extension system broadcast message. And the receiving end node executes corresponding subsequent processing according to the analyzed message type. In one embodiment, the extended system broadcast message comprises a base application layer extended system broadcast message, and the positioning-assisted extended system broadcast message comprises broadcast data generated by an application of the base application layer.
Access layer frame format:
fig. 8 shows the manner in which the extended system broadcast message uses the second type MAC PDU structure 220, i.e., transparent transmission, at the data link layer of the access layer without framing the upper layer data, the media access layer (Media Access Control, MAC) PDU being equal to the SDU. In the star-flash access layer of the sender node, the protocol data units (Protocol Data Unit, PDU) of the extended system broadcast message are equal to the service data units (Service Data Unit, SDU) of the extended system broadcast message. In the star flash communication access layer of the receiving end node, the PDU of the broadcast message of the extension system is equal to the SDU of the broadcast message of the extension system.
Basic service layer frame format:
fig. 9 shows that the relevant data of the extended system broadcast message is transmitted using the format of the basic service layer frame 230, and further format conventions are made in the data portion of the extended system broadcast message, including the message type of the extended system broadcast message and the message body of the extended system broadcast message, namely:
in the star flash communication basic service layer of the transmitting end node, the extended system broadcast message includes a transmission channel identification (Transport Channel Identifier, TCID), a length indication, and data information. In the star flash communication basic service layer of the receiving end node, the extended system broadcast message includes a TCID, a length indication, and data information.
Wherein:
transmission channel identification (Transport Channel Identifier, TCID): 2 bytes as an identification of the transmission channel.
Length indication: 2 bytes indicating the length of the data information.
2-65535 bytes of data information.
The data information comprises the following components:
the first byte of the data information is a message type indication of the extended system broadcast message.
The content following the first byte of the data information is the specific content (payload) of the extended system broadcast message.
Extension system broadcast message type:
the extended system message type is used for indicating the content of the extended system message and is expressed by 1 byte; the following is an exemplary description:
table 2
| Message type identification | Message type |
| 0x0000 | Reserved field |
| 0x0001 | Device discovery assisted extension system broadcast messages |
| 0x0002 | Service discovery assisted extensionExhibition system broadcast message |
| 0x0003 | Positioning-assisted extension system broadcast messages |
| 0x0004 | Basic application layer extension system broadcast message |
| 0x0005～0xFFFF | Reserved field |
Embodiment two: SLB access stratum processing
Scheme one: the transmitting end node uses the dynamic scheduling data control information as scheduling information for indicating the configuration information of the extended system broadcast message. The configuration information of the extended system broadcast message indicates one or more of the following information of the extended system broadcast message: message type, time-frequency resource, transmission period, change period, etc. After receiving the scheduling information of the configuration information of the broadcast message of the expansion system, the receiving end node can analyze the configuration information of the broadcast message of the expansion system according to the scheduling information, and then can acquire the type, time-frequency resource, sending period and changing period of the broadcast message of the expansion system according to the configuration information of the broadcast message of the expansion system, thereby receiving the broadcast message of the expansion system at the corresponding time-frequency position. The time-frequency locations comprise time-domain locations and frequency-domain locations. The scheduling information includes one or more of the following information of the extended system broadcast message: the extended system broadcast message enable flag bit, the indication information of the configuration information of the extended system broadcast message, and the configuration information of the extended system broadcast message.
Referring to fig. 10, the receiving end node a receives a broadcast message (D001).
The receiving end node A analyzes the broadcast message to obtain N offset G linkParameters such as time-frequency location of common resources of the control information communication domain, whether to transmit an extended system message, superframe number, cyclic prefix, and the like (D002).
And the receiving end node A blindly detects dynamic scheduling data control information for the configuration information of the extended system message and acquires information such as time-frequency resources and message types for transmitting the configuration information of the extended system message (D003).
The receiving end node A analyzes the configuration information of the extended system message and acquires the time-frequency resource scheduling information of the extended system message (D004).
The receiving end node A analyzes the expansion system message and obtains the specific content of the expansion system message (D005).
The extended system broadcast message enable flag bit:
the extended system broadcast message may indicate whether to transmit or not by a flag bit in the broadcast message as an optional system message. When the field is enabled (e.g., set to 1), it indicates that there is an extended system broadcast message, and when the field is disabled (e.g., set to 0), it indicates that there is no extended system broadcast message. The meaning of the fields of the current broadcast message is as described above. The field of the current broadcast message has 9 bits of reserved bits, the values of which are all 0 in the current version. E.g., 1 of the 9-bit reserved bits may be used to identify whether an extended system broadcast message was sent. Namely:
1 bit: indicating whether an extended system broadcast message is transmitted;
8 bits: reserved bits whose values are all 0 in the current version.
Indication information of configuration information of an extended system broadcast message:
the scheduling indication information of the configuration information of the extended system broadcast message refers to control information of scheduling resources for carrying the configuration information of the extended system broadcast message, and may be referred to as dynamic scheduling information; the message is transmitted in the common resource of the G link control information communication domain, and uses the 60-bit format of the dynamic scheduling data control information defined in the SLB access layer protocol, and the specific configuration is as follows:
from the least significant bit to the most significant bit, comprising:
1 bit: link type indication information. The fixed value is 0.
1 bit: an indication is scheduled across superframes. 0 indicates that the control information and the control information scheduled resource are in the same superframe, and 1 indicates that the control information scheduled resource is adjacent to the superframe after the superframe in which the control information is located.
3 bits: demodulation reference signal port number indication information. The number of demodulation reference signal ports is (3-bit value + 1).
1 bit: demodulation reference signal comb teeth indicate that comb teeth are not adopted, 0 indicates that comb teeth with interval of 1 are adopted, and 1 indicates that comb teeth with interval of 1 are adopted.
10 bits: the first granularity subcarrier group indication information. The 10 bits from the lowest bit to the highest bit are in one-to-one correspondence with the order of the 10 first granularity subcarrier groups from small to large. Of the 10 bits, a bit having a value of 1 represents a subcarrier group corresponding to the bit used, and a bit having a value of 0 represents a subcarrier group corresponding to the bit not used.
3 bits: the start radio frame indication information. In the scheduled superframe, the starting radio frame is # (3-bit value x 6) radio frame.
3 bits: wireless frame length indication. Starting from the starting radio frame, there are (3-bit value x 6+1) radio frames in duration.
2 bits: hybrid automatic repeat request (hybrid automatic repeat request, HARQ) process indication information.
5 bits: modulation coding scheme indication information.
2 bits: scheduling type indication information. 00 represents primary transmission, 01 represents use of Coding mode =1 or Coding mode Redundancy versions 1,10, determined by=2, represent redundancy versions 2,11 represent redundancy version 3.
4 bits: comb type parameters and starting comb subcarrier group information fed back by 1-bit ACK. 0000 represents comb teeth of 1,0001 represents comb teeth of 2 and uses even number subcarriers, 0010 represents comb teeth of 2 and uses odd number subcarriers, 0100 represents comb teeth of 4 and uses subcarriers of modulo 4 of 0, 0101 represents comb teeth of 4 and uses subcarriers of modulo 4 of 1, 0110 represents comb teeth of 4 and uses subcarriers of modulo 4 of 2, 0111 represents comb teeth of 4 and uses subcarriers of modulo 4 of 3, and 1100 represents not feeding back ACK information. Other situations do not occur.
1 bit: the fixed value is 1;
24 bits: when the control information indicates the resources of the system message, the dynamic scheduling data control information mask is an all 1 sequence.
Configuration information of the extended system broadcast message:
the configuration information of the extended system broadcast message is a message for configuring parameters such as a message type, a time-frequency resource, a transmission period, a change period and the like of the extended system broadcast message to be transmitted. The time-frequency resources comprise time-domain resources and frequency-domain resources of the broadcast message of the expansion system. In one embodiment, the time domain resource may include a starting transmission position offset of an extended system broadcast message. In one embodiment, the transmission period may contain one or more of the following messages of the extended system broadcast message: cycle length, number of consecutive transmissions in a cycle, and number of transmission cycles. The configuration information should at least contain one or more of the following:
communication domain identification, such as domainName and/or domainID; a kind of electronic device with high-pressure air-conditioning system
● Message type: such as for device discovery, or for service discovery, or for positioning, etc.
The following parameters may be configured separately for each type of extended system broadcast message or may be configured as a set for multiple extended system broadcast messages, i.e., the multiple extended system broadcast messages use the same set of configuration parameters. When a plurality of extended system broadcast messages are scheduled simultaneously, configuration information of the extended system broadcast messages indicates one or more of the following information of the extended system broadcast messages: message type, period length, number of consecutive transmissions in a period, number of transmission periods, initial transmission position offset, frequency domain resource, modulation and coding scheme indication, extended system broadcast message change indication, and extended system broadcast message change period. An example of the configuration information of the extended system broadcast message is as follows.
● Cycle length: indicating the time domain length of one sending period of the broadcast message of the expansion system, wherein the unit is a radio frame or a super frame;
● Number of consecutive transmissions in a cycle: indicating the number of times that the broadcast message of the expansion system is continuously transmitted in one transmission period;
● Number of transmission cycles: indicating the cycle number of continuous transmission of the broadcast message of the expansion system, and stopping transmission in the next cycle when the transmission cycle number reaches the configuration value;
● Initial transmission position offset: a radio frame or symbol offset of an extended system broadcast message is transmitted for the first time in one period;
● Frequency domain resources: indicating the number of subcarriers allocated on the frequency domain for the broadcast message of the expansion system;
● Modulation and coding scheme indication: and the modulation and coding mode is used for indicating the transmission of the broadcast message data block of the extension system.
Extended system broadcast message change indication: for indicating whether the extended system broadcast message is changed in the next change period.
Extended system broadcast message change period: and the change period is used for indicating the broadcast message of the extended system, and the unit is a super frame or a radio frame.
Transmitting end node (communication domain G node) processing procedure:
1> transmitting a broadcast message;
2> generating contents of each field according to contents defined by the broadcast message;
2> the 1 st position of the reserved bit in the enable flag bit is 1, which indicates that there is an extended system broadcast message;
1> dynamic scheduling information of configuration information of an extended system broadcast message is transmitted on G-link common control resources,
the dynamic scheduling information indicates time-frequency resources of configuration information of the extended system broadcast message:
2> generating the contents of each field of the dynamic scheduling information of the configuration information of the extended system broadcast message according to the scheduling information and/or the high-level configuration information;
1> transmitting configuration information of an extended system broadcast message, wherein the configuration information indicates information of a message type and time-frequency resources of the extended system broadcast message:
2> determining scheduling information such as the period, the sending times, the time-frequency resources and the like of the broadcast message of the expansion system according to a scheduling algorithm and/or high-level configuration information;
2> generating the content of each field of the configuration information of the extended system broadcast message according to the scheduling information and/or the high-level configuration information;
1> transmitting an extended system broadcast message:
2> packaging the broadcast message of the expansion system to be transmitted;
2> transmitting the extended system broadcast message according to the configuration information of the extended system broadcast message;
Receiving end node (T node or low priority communication domain G node) processing:
1> receive broadcast message:
2, acquiring system basic configuration information such as cyclic prefix, radio frame symbol ratio, super frame number and the like of the communication domain according to the analyzed broadcast message;
2, acquiring time-frequency position information of the G link common control resource according to the symbol number information N of the G node transmitting G link control information communication domain common resource in the broadcast message;
2> determining whether to transmit the extended system broadcast message according to the "extended system broadcast message indication bit" in the broadcast message, that is, the first bit of the 9 bits "reserved bits";
1> receiving dynamic scheduling information of configuration information of an extended system broadcast message, wherein the dynamic scheduling information indicates time-frequency resources of the configuration information of the extended system broadcast message;
2> dynamic scheduling information of scheduling configuration information of a broadcast message of the blind detection extension system in the G link public control resource;
2, analyzing the dynamic scheduling information of successful blind detection, and acquiring scheduling information such as time-frequency positions and the like transmitted by the scheduling configuration information of the extended system broadcast message;
1> receiving scheduling configuration information of an extended system broadcast message, wherein the configuration information indicates information of a message type and time-frequency resources of the extended system broadcast message:
2, analyzing the broadcast scheduling configuration information of the extension system to obtain scheduling information such as the transmission period, the transmission times, the time-frequency resources and the like of the broadcast information of the extension system;
1> receiving an extended system broadcast message:
2> performing reception of the extended system broadcast message through an access layer of the SLB according to the configuration information of the extended system broadcast message;
2> analyzing the broadcast message of the expansion system to obtain the specific content of the broadcast message of the expansion system;
scheme II:
the transmitting end node uses semi-static scheduling information as scheduling information for indicating configuration information of the extended system broadcast message. The scheduling information includes one or more of the following information of the extended system broadcast message: the extension system broadcasts message enablement.
A new semi-static scheduling mode is defined for scheduling the broadcast messages of the expansion system, the semi-static scheduling information is transmitted in the public resource of the G link control information communication domain, the star flash node detects and receives the semi-static scheduling information in a blind detection mode, and the scheduling information of the broadcast messages of the expansion system can be known by analyzing the semi-static scheduling information, so that the broadcast messages of the expansion system are periodically received at the corresponding time-frequency positions. The time-frequency locations comprise time-domain locations and frequency-domain locations.
Referring to fig. 11, the receiving end node a receives a broadcast message (E001).
The receiving end node A analyzes the broadcast message to obtain N offset Parameters such as time-frequency location of the G link control information communication domain common resource, whether to transmit the extended system message, superframe number, cyclic prefix, etc. (E002).
And the receiving end node A blindly detects the semi-static scheduling data control information used for the configuration information of the extended system message and acquires the information such as time-frequency resource, message type and the like of the configuration information of the extended system message (E003).
The receiving end node A analyzes the configuration information of the extended system message and obtains the time-frequency resource scheduling information of the extended system message (E004).
The receiving end node A analyzes the expansion system message and obtains the specific content of the expansion system message (E005).
The extended system broadcast message enable flag bit:
the scheme is similar to the scheme one, and the broadcast message also carries a flag bit of whether the extended system broadcast message exists or not.
The extended system broadcast message may indicate whether to transmit or not by a flag bit in the broadcast message as an optional system message. When the field is enabled (e.g., set to 1), it indicates that there is an extended system broadcast message, and when the field is disabled (e.g., set to 0), it indicates that there is no extended system broadcast message. The meaning of the fields of the current broadcast message is as described above. The field of the current broadcast message has 9 bits of reserved bits, the values of which are all 0 in the current version. E.g., 1 of the 9-bit reserved bits may be used to identify whether an extended system broadcast message was sent. Namely:
1 bit: indicating whether an extended system broadcast message is transmitted;
8 bits: reserved bits whose values are all 0 in the current version.
Semi-static scheduling information:
the semi-static scheduling information carries information configured by parameters such as the message type, time-frequency resource, transmission period and the like of the extended system broadcast message. The time-frequency resources comprise time-domain resources and frequency-domain resources of the broadcast message of the expansion system. In one embodiment, the time domain resource may include a starting transmission position offset of an extended system broadcast message. In one embodiment, the transmission period may contain one or more of the following messages of the extended system broadcast message: cycle length, number of consecutive transmissions in a cycle, and number of transmission cycles. The semi-static scheduling information should at least contain one or more of the following:
a communication domain identification, such as a domainName and/or domainID; a kind of electronic device with high-pressure air-conditioning system
Extension system broadcast message type: such as for device discovery, or for service discovery, or for positioning, etc.
The following semi-static scheduling information parameters may be configured separately for each type of extended system message, or may be configured as a group for multiple extended system messages, i.e., the multiple extended system messages use the same group of semi-static scheduling information parameters. When multiple extended system broadcast messages are scheduled simultaneously, semi-static scheduling information of the extended system broadcast messages indicates one or more of the following information of the extended system broadcast messages: message type, period length, number of consecutive transmissions in a period, number of transmission periods, initial transmission position offset, frequency domain resource, modulation and coding scheme indication, extended system broadcast message change indication, and extended system broadcast message change period. An example of the configuration information of the extended system broadcast message is as follows.
Cycle length: indicating the time domain length of one sending period of the broadcast message of the expansion system, wherein the unit is a radio frame or a super frame;
number of consecutive transmissions in a cycle: indicating the number of times that the broadcast message of the expansion system is continuously transmitted in one transmission period;
number of transmission cycles: indicating the cycle number of continuous transmission of the broadcast message of the expansion system, and stopping transmission in the next cycle when the transmission cycle number reaches the configuration value;
initial transmission position offset: a radio frame or symbol offset for the first time of transmitting an extended system message within one period;
frequency domain resources: indicating the number of subcarriers allocated on the frequency domain for the broadcast message of the expansion system;
modulation and coding scheme indication: and the modulation and coding mode is used for indicating the transmission of the broadcast message data block of the extension system.
Extended system message change indication: for indicating whether the extended system broadcast message is changed in the next change period.
Extending the system message change period: the change period is used for indicating the broadcast message of the expansion system, and the unit is a super frame or a wireless frame;
compared with the scheme I, the scheme adds a new G link control information type, and increases the complexity of blind detection;
transmitting end node (communication domain G node) processing procedure:
1> transmitting a broadcast message;
2> generating contents of each field according to contents defined by the broadcast message;
2> the 1 st position of the reserved bit in the enable flag bit is 1, which indicates that there is an extended system broadcast message;
1> semi-static scheduling information for transmitting the extended system broadcast message:
2> determining scheduling information such as the period, the sending times, the time-frequency resources and the like of the broadcast message of the expansion system according to a scheduling algorithm and/or high-level configuration information;
2> generating the content of each field of the configuration information of the extended system broadcast message according to the scheduling information and/or the high-level configuration information;
1> transmitting the extended system broadcast message:
2> packaging the broadcast message of the expansion system to be transmitted;
2> transmitting the extended system broadcast message according to the configuration information indicated by the configuration information of the extended system broadcast message;
receiving end node (T node or low priority communication domain G node) processing:
1> receive broadcast message:
2, acquiring system basic configuration information such as cyclic prefix, radio frame symbol ratio, superframe number and the like of a communication domain according to the analyzed broadcast message;
2, acquiring time-frequency position information of the G link common control resource according to the symbol number information N of the G node transmitting G link control information communication domain common resource in the broadcast message;
2> determining whether to transmit the extended system broadcast message according to the "extended system broadcast message indication bit" in the broadcast message, that is, the first bit of the 9 bits "reserved bits";
1> receiving semi-static scheduling information of a scheduling expansion system broadcast message;
2> blind test scheduling extension system broadcast message semi-static scheduling information in G link public control resource;
2> analyzing semi-static scheduling information of the broadcast message of the expansion system, and acquiring scheduling information such as a transmission period, the number of times of transmission, time-frequency resources and the like of the broadcast message of the expansion system;
1> receive extended system message:
2> performing reception of the extended system broadcast message through an access layer of the SLB according to the configuration information of the extended system broadcast message;
2> analyzing the broadcast message of the expansion system to obtain the specific content of the broadcast message of the expansion system;
embodiment III: base service layer processing
Transmission channel processing:
the data transmission of the basic service layer is performed based on the transmission channel, and the connection management function unit of the basic service layer defines the connection management function, signaling and interaction flow related to the transmission channel, including:
establishing, updating and deleting a transmission channel;
maintaining the mapping relation between the transmission channel and the star flash access layer logic channel; a kind of electronic device with high-pressure air-conditioning system
The selection of a star flash access layer transmission path, and the like.
The data transmission and adaptation layer defines the processing functions of the transmission channel during data transmission.
The current version of 'star flash basic service layer equipment and service discovery standard' defines a universal control broadcast transmission channel, and the universal control broadcast transmission channel is only suitable for star flash equipment which is supported by star flash access layer technology and transmits upper-layer universal control broadcast information. Since the SLB access layer standard does not support the basic service layer or the basic application layer to configure broadcast messages for the access layer, the universal control broadcast transmission channel is only used for star flash devices using the SLE access layer. The technical proposal provides that the SLB access layer technology can bear the basic service layer or the basic application layer to configure the broadcast message of the expansion system for the technical proposal, and can expand the function of the universal control broadcast transmission channel to be applicable to SLB access layer standard. And distinguishing whether the extended system broadcast message transmitted on the universal control broadcast transmission channel is carried at an access layer of a star flash low power version (Sparklink Low Energy, SLE) or the access layer of a star flash Basic version (SLB) by a transmission channel identifier (Transport Channel Identifier, TCID).
Optionally, a new SLB control broadcast transmission channel is defined, which is used to carry an extended system broadcast message configured by the basic service layer or the basic application layer for the SLB access layer. The transmission channel is maintained by default, and is assigned with a fixed transmission channel identification, using default configuration parameters. And automatically establishing when the star-flash SLB access layer link is established, and automatically releasing when the SLB access layer link is released.
Interlayer interaction:
the inter-layer interaction describes the transmission process of the extension system broadcast message between protocol layers of the star flash node capable of transmitting the SLB extension system broadcast message, and the following will take the device discovery auxiliary extension system broadcast message, the service discovery auxiliary extension system broadcast message, and the basic application layer extension system broadcast message as examples of the transmission process of the extension system broadcast message between protocol layers:
device discovery assisted extension system broadcast message transmission process:
referring to fig. 12 to 14, the device discovery function unit 311 defines a process of disclosing own information between star-flash nodes through one party, and the other party receives the disclosure information and discovers the other party. The device discovery procedure may be triggered by an upper layer of the access layer 400, for example by other functional units of the base application layer 200 or the base service layer 300 of the sender node. The star flashover device discloses own information through broadcast information or system information according to own access layer capability, senses other star flashover devices existing in the periphery through access layer scanning capability, and can instruct an access layer to filter a scanning result according to configured filtering conditions to obtain interested target devices. The disclosure information is implemented by carrying corresponding data in a star flash access layer broadcast message or system information.
When the access layer 411 is an SLB access technology and an upper layer of the access layer 400 (for example, other functional modules of the base service layer 300 (such as a multi-domain management module) or the application 201 of the base application layer 200) wants to carry more device discovery related information transmitted by broadcasting, the device discovery related information of the transmitting end node that wants to be disclosed can be first packetized as broadcasting data and transmitted to the device discovery functional unit 311 of the transmitting end node in the above manner. The broadcast data is then transmitted by the device discovery function 311 to the data transmission and adaptation function 312 of the base service layer 300 of the sender node. The data transmission and adaptation function 312 of the base service layer 300 generates a data frame of the extended system broadcast message (the device discovery auxiliary extended system broadcast message) according to a defined base service layer 300 frame format of an embodiment to carry the broadcast data.
The data transmission and adaptation function unit 312 of the basic service layer 300 transmits the data frame of the extended system broadcast message to the SLB access layer 411, and the SLB access layer 411 executes the transmission flow of the extended system broadcast message in the manner described in the second embodiment.
Service discovery assisted extension system broadcast message transmission process:
referring to fig. 13, service management is one of core functional units of the basic service layer 300, which may provide the basic application layer 200 as well as the basic service layer 300 with service management functions including service registration, maintenance, deletion, etc. inside the device. Meanwhile, the service management function unit 301 defines a unified service structure and a star flash service interaction protocol. The service structure is an expression format, and provides a unified basic template for service definition. The star flash service interaction protocol provides standard signaling for devices to discover and interact with each other.
According to the processing flow in the current protocol, the premise of service discovery is that the star-flash device discovers other surrounding star-flash nodes through the device discovery flow, and then establishes an SLB service management transmission channel according to the star-flash wireless link connection establishment flow, so as to transmit service capability information which can be provided by the sender node to the SLB access layer 411 of the star-flash node. The upper layer of the access layer 400 firstly packs the service capability information available to the transmitting end node as broadcast data and transmits the broadcast data to the service discovery function unit 313 of the transmitting end node. The service discovery function 313 of the transmitting end node transmits service capability information available to the transmitting end node as broadcast data to the data transmission and adaptation function 312 of the base service layer 300 of the transmitting end node. The data transmission and adaptation function 312 of the base service layer 300 generates a data frame of the extended system broadcast message (the service discovery-assisted extended system broadcast message) according to a defined base service layer 300 frame format of an embodiment to carry the broadcast data.
The data transmission and adaptation function unit 312 of the basic service layer 300 transmits the data frame of the extended system broadcast message to the SLB access layer 411, and the SLB access layer 411 executes the transmission flow of the extended system broadcast message in the manner described in the second embodiment.
The basic application layer extension system broadcast message transmission process:
referring to fig. 14, the base application layer 200 includes a general application service framework and applications. A generic application service framework is a set of different functions and operation sets defined for an application. The generic application service framework may be invoked by an application (e.g., application 201) to implement a particular function. Applications define specific business related functions, operations. The base application layer 200 may define standardized profiles for specific applications (e.g., application 201), including standard services, business feature parameters, interaction flows, and the like.
The base application layer 200 may transmit broadcast data of an application (e.g., application 201) to the SLB access layer 411 through the base service layer 300, and transmit an extended system broadcast message to surrounding star flashnodes using an extended system broadcast message transmission procedure of the SLB access layer 411.
The base application layer 200 of the transmitting end node or an application of the base application layer 200 (for example, the application 201) packs application information to be broadcasted as broadcast data, and transmits the broadcast data to the data transmission and adaptation function 312 of the base service layer 300. The data transmission and adaptation function 312 of the base service layer 300 generates a data frame of the extended system broadcast message according to a defined frame format of the base service layer 300 according to an embodiment to carry the broadcast data.
For example, an application program (e.g., application 201) of a G node in the communication domain may transmit advertisement information to the access layer 411 of the SLB through the base application layer 200 and the base service layer 300, and the advertisement information may be sent to other star flash nodes in the communication domain by the access layer 411 through a message broadcast by the extension system.
The data transmission and adaptation function unit 312 of the basic service layer 300 transmits a data frame of the extended system broadcast message (the basic application layer extended system broadcast message) to the SLB access layer 411, and the SLB access layer 411 executes the transmission flow of the extended system broadcast message in the manner described in the second embodiment.
The embodiment of the invention provides an innovative design for supporting broadcast messages of a high-level configuration expansion system aiming at a star flash system based on an SLB access layer technology, and specifically comprises the following steps:
1. in a star flash communication system based on SLB as an access layer technology, a star flash management node is supported to send an expansion system broadcast message;
2. scheduling mechanism, data transmission format, signaling definition, flow interaction and the like related to the transmission of the broadcast message of the extended system based on the SLB access layer technology are provided.
The embodiment of the invention provides an extended system message for functions such as device discovery, service discovery, positioning and the like, which comprises definition of corresponding extended system broadcast messages and the like, so that a star flash member node can acquire more information before establishing connection with a star flash management node.
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 (41)
1. A wireless communication method performed in a wireless communication apparatus as a transmitting end node of star flash communication, comprising:
an access layer of a star flash Basic version (SLB) of star flash communication of the sending end node receives broadcast data of an upper layer of the access layer, and generates an extended system broadcast message carrying the broadcast data of the upper layer through the access layer of the SLB; a kind of electronic device with high-pressure air-conditioning system
And sending the extended system broadcast message through the access layer of the SLB.
2. The wireless communication method of claim 1, wherein the extended system broadcast message comprises one or more of the following types: device discovery auxiliary extension system broadcast messages, service discovery auxiliary extension system broadcast messages, positioning auxiliary extension system broadcast messages, and base application layer extension system broadcast messages.
3. The method of wireless communication according to claim 1, wherein,
the extended system broadcast message is generated by an application program of a basic application layer of the transmitting end node;
a device discovery auxiliary extension system broadcast message for device discovery is generated by a device discovery function unit of the transmitting end node; or (b)
A service discovery assistance extension system broadcast message for service discovery is generated by a service management function of the sender node.
4. The wireless communication method of claim 1, wherein the extended system broadcast message comprises a device discovery auxiliary extended system broadcast message comprising one or more of the following information: device discovery level, device type, and power mode.
5. The wireless communication method of claim 1, wherein the extended system broadcast message comprises a service discovery auxiliary extended system broadcast message comprising one or more of the following information: generic services and device specific services independent of device type.
6. The wireless communication method of claim 1, wherein the extended system broadcast message comprises a positioning-assisted extended system broadcast message comprising one or more of the following information: position information and positioning reference signals of the communication domain G node.
7. The method of claim 1, wherein the extended system broadcast message comprises a base application layer extended system broadcast message, and wherein the positioning-assisted extended system broadcast message comprises broadcast data generated by an application of the base application layer.
8. The wireless communication method according to claim 1, characterized in that in the star-flash communication access layer of the sender node, the protocol data unit (Protocol Data Unit, PDU) of the extended system broadcast message is equal to the service data unit (Service Data Unit, SDU) of the extended system broadcast message.
9. The method according to claim 1, wherein in the star-flash basic service layer of the sender node, the extended system broadcast message comprises a transmission channel identification (Transport Channel Identifier, TCID), a length indication, and data information.
10. The method of wireless communication according to claim 9, wherein,
the first byte of the data information is a message type indication of the extended system broadcast message; a kind of electronic device with high-pressure air-conditioning system
The content following the first byte of the data information is a payload of the extended system broadcast message.
11. The wireless communication method according to claim 1, wherein the transmitting end node uses dynamic scheduling data control information as scheduling information for indicating time-frequency resources of configuration information of the extended system broadcast message; or (b)
The transmitting end node uses semi-static scheduling information as scheduling information for indicating configuration information of the extended system broadcast message.
12. The wireless communication method according to claim 11, wherein the configuration information of the extended system broadcast message indicates one or more of the following information of the extended system broadcast message: message type, time-frequency resource, transmission period, and change period information.
13. The wireless communication method according to claim 11, wherein the configuration information of the extended system broadcast message indicates one or more of the following information of the extended system broadcast message: message type, period length, number of consecutive transmissions in a period, number of transmission periods, initial transmission position offset, frequency domain resource, modulation and coding scheme indication, extended system broadcast message change indication, and extended system broadcast message change period.
14. The wireless communication method according to claim 11, wherein the scheduling information includes one or more of the following information of the extended system broadcast message: the extended system broadcast message enable flag bit, the indication information of the configuration information of the extended system broadcast message, and the configuration information of the extended system broadcast message.
15. The wireless communication method of claim 1, further comprising, prior to transmitting the extended system broadcast message through the access layer of the SLB:
the sending end node sends a broadcast message, wherein the broadcast message comprises an enabling flag bit of the broadcast message of the expansion system; a kind of electronic device with high-pressure air-conditioning system
The transmitting end node transmits dynamic scheduling information of configuration information of the extended system broadcast message, wherein the dynamic scheduling information indicates time-frequency resources of the configuration information of the extended system broadcast message;
the transmitting end node transmits configuration information of the extended system broadcast message, wherein the configuration information indicates information of message type and time resource of the extended system broadcast message;
wherein, the sending of the extended system broadcast message by the sending end node through the access layer of the SLB is performed according to the configuration information of the extended system broadcast message.
16. The wireless communication method of claim 1, further comprising, prior to transmitting the extended system broadcast message through the access layer of the SLB:
the sending end node sends a broadcast message, wherein the broadcast message comprises an enabling flag bit of the broadcast message of the expansion system; a kind of electronic device with high-pressure air-conditioning system
The transmitting end node transmits semi-static scheduling information of the extended system broadcast message, wherein the semi-static scheduling information of the extended system broadcast message indicates configuration information of the extended system broadcast message;
wherein, the sending of the extended system broadcast message through the access layer of the SLB is performed according to configuration information of the extended system broadcast message.
17. The wireless communication method according to claim 15 or 16, wherein the 1 st position of the reserved bit in the enable flag bit is 1, indicating the presence of an extended system broadcast message;
and the 1 st position of the reserved bit in the enabling flag bit is 0, which indicates that no extended system broadcast message exists.
18. The wireless communication method according to claim 1, characterized in that it is distinguished by a transmission channel identification (Transport Channel Identifier, TCID) whether the extended system broadcast message transmitted on a universal control broadcast transmission channel is carried at an access layer of a star flash low power version (Sparklink Low Energy, SLE) or at the access layer of a star flash Basic version (SLB).
19. The wireless communication method according to claim 1, further comprising:
the equipment discovery function unit of the transmitting end node transmits the broadcast data to the data transmission and adaptation function unit of the basic service layer of the transmitting end node;
the data transmission and adaptation functional unit of the basic service layer generates a data frame of the broadcast message of the expansion system according to a frame format of the basic service layer so as to carry the broadcast data;
the data transmission and adaptation function unit of the basic service layer transmits the data frame of the broadcast message of the expansion system to the access layer; a kind of electronic device with high-pressure air-conditioning system
The access layer performs transmission of the extended system broadcast message.
20. The wireless communication method according to claim 1, further comprising:
the service discovery functional unit of the transmitting end node uses the service capability information which can be provided by the transmitting end node as broadcast data and transmits the broadcast data to the data transmission and adaptation functional unit of the basic service layer of the transmitting end node;
the data transmission and adaptation functional unit of the basic service layer generates a data frame of the broadcast message of the expansion system according to a frame format of the basic service layer so as to carry the broadcast data;
The data transmission and adaptation function unit of the basic service layer transmits the data frame of the broadcast message of the expansion system to the access layer; a kind of electronic device with high-pressure air-conditioning system
The access layer performs transmission of the extended system broadcast message.
21. The wireless communication method according to claim 1, further comprising:
the base application layer of the transmitting end node or the application of the base application layer packs application information to be broadcasted as broadcast data, and transmits the broadcast data to a data transmission and adaptation functional unit of a base service layer;
the data transmission and adaptation functional unit of the basic service layer generates a data frame of the broadcast message of the expansion system according to a frame format of the basic service layer so as to carry the broadcast data;
the data transmission and adaptation function unit of the basic service layer transmits the data frame of the broadcast message of the expansion system to the access layer; a kind of electronic device with high-pressure air-conditioning system
The access layer performs transmission of the extended system broadcast message.
22. 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 said processor is installed to perform the method of any of claims 1 to 21.
23. A wireless communication method performed in a wireless communication apparatus that is a receiving end node of star flash communication, comprising:
the receiving end node receives the broadcast message of the expansion system through an access layer of a star link Basic version (SLB) of the receiving end node;
the access layer of the SLB of the receiving end node transmits the extended system broadcast message to an upper layer of the access layer of the SLB of the receiving end node to process broadcast data in the extended system broadcast message.
24. The wireless communication method of claim 23, wherein the extended system broadcast message comprises one or more of the following types: device discovery auxiliary extension system broadcast messages, service discovery auxiliary extension system broadcast messages, positioning auxiliary extension system broadcast messages, and base application layer extension system broadcast messages.
25. The method of wireless communication according to claim 23, wherein,
the extended system broadcast message is generated by an application program of a basic application layer of the transmitting end node;
a device discovery auxiliary extension system broadcast message for device discovery is generated by a device discovery function unit of the transmitting end node; or (b)
A service discovery assistance extension system broadcast message for service discovery is generated by a service management function of the sender node.
26. The wireless communication method of claim 23, wherein the extended system broadcast message comprises a device discovery auxiliary extended system broadcast message comprising one or more of the following information: device discovery level, device type, and power mode.
27. The wireless communication method of claim 23, wherein the extended system broadcast message comprises a service discovery auxiliary extended system broadcast message comprising one or more of the following information: generic services and device specific services independent of device type.
28. The wireless communication method of claim 23, wherein the extended system broadcast message comprises a positioning-assisted extended system broadcast message comprising one or more of the following information: location information and positioning reference signals of the communication domain G node irrespective of the device type.
29. The method of claim 23, wherein the extended system broadcast message comprises a base application layer extended system broadcast message, and wherein the positioning-assisted extended system broadcast message comprises broadcast data generated by an application of the base application layer.
30. The method of claim 23, wherein in the star flash access layer of the receiving end node, a protocol data unit (Protocol Data Unit, PDU) of the extended system broadcast message is equal to a service data unit (Service Data Unit, SDU) of the extended system broadcast message.
31. The method of claim 23, wherein in the receiving end node's star-flash basic service layer, the extended system broadcast message includes a transmission channel identification (Transport Channel Identifier, TCID), a length indication, and data information.
32. The method of wireless communication according to claim 31, wherein,
the first byte of the data information is a message type indication of the extended system broadcast message; a kind of electronic device with high-pressure air-conditioning system
The content following the first byte of the data information is a payload of the extended system broadcast message.
33. The wireless communication method according to claim 23, wherein the receiving end node receives dynamic scheduling data control information as scheduling information for indicating configuration information of the extended system broadcast message; or (b)
The receiving end node receives semi-static scheduling information as scheduling information and is used for indicating configuration information of the extended system broadcast message.
34. The wireless communication method of claim 33, wherein the configuration information of the extended system broadcast message indicates one or more of the following information of the extended system broadcast message: message type, time-frequency resource, transmission period, and change period information.
35. The wireless communication method of claim 33, wherein the configuration information of the extended system broadcast message indicates one or more of the following information of the extended system broadcast message: message type, period length, number of consecutive transmissions in a period, number of transmission periods, initial transmission position offset, frequency domain resource, modulation and coding scheme indication, extended system broadcast message change indication, and extended system broadcast message change period.
36. The wireless communication method according to claim 33, wherein the scheduling information comprises one or more of the following information of the extended system broadcast message: the extended system broadcast message enable flag bit, the indication information of the configuration information of the extended system broadcast message, and the configuration information of the extended system broadcast message.
37. The wireless communication method of claim 23, further comprising, prior to receiving the extended system broadcast message through the access layer of the SLB:
the receiving end node receives a broadcast message, wherein the broadcast message comprises an extended system broadcast message enabling flag bit; a kind of electronic device with high-pressure air-conditioning system
The receiving end node receives dynamic scheduling information of configuration information of the extended system broadcast message, wherein the dynamic scheduling information indicates time-frequency resources of the configuration information of the extended system broadcast message;
the receiving end node receives configuration information of the broadcast message of the expansion system, wherein the configuration information indicates information of message types and time resources of the broadcast message of the expansion system;
wherein, the receiving end node receives the extended system broadcast message through the access layer of the SLB according to the configuration information of the extended system broadcast message.
38. The wireless communication method of claim 23, further comprising, prior to receiving the extended system broadcast message through the access layer of the SLB:
the receiving end node receives a broadcast message, wherein the broadcast message comprises an extended system broadcast message enabling flag bit; a kind of electronic device with high-pressure air-conditioning system
The receiving end node receives semi-static scheduling information of the extended system broadcast message, wherein the semi-static scheduling information of the extended system broadcast message indicates configuration information of the extended system broadcast message;
wherein receiving the extended system broadcast message through the access layer of the SLB is performed according to configuration information of the extended system broadcast message.
39. The wireless communication method according to claim 37 or 38, wherein the 1 st position of the reserved bit in the enable flag bit is 1, indicating the presence of an extended system broadcast message;
and the 1 st position of the reserved bit in the enabling flag bit is 0, which indicates that no extended system broadcast message exists.
40. The wireless communication method according to claim 23, characterized in that it is distinguished by a transmission channel identification (Transport Channel Identifier, TCID) whether the extended system broadcast message transmitted on a universal control broadcast transmission channel is carried at an access layer of a star flash low power version (Sparklink Low Energy, SLE) or at the access layer of a star flash Basic version (SLB).
41. 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 said processor is installed to perform the method of any of claims 23 to 40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210772526.6A CN117221827A (en) | 2022-06-30 | 2022-06-30 | Wireless communication method and wireless communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210772526.6A CN117221827A (en) | 2022-06-30 | 2022-06-30 | Wireless communication method and wireless communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117221827A true CN117221827A (en) | 2023-12-12 |
Family
ID=89039502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210772526.6A Pending CN117221827A (en) | 2022-06-30 | 2022-06-30 | Wireless communication method and wireless communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117221827A (en) |
-
2022
- 2022-06-30 CN CN202210772526.6A patent/CN117221827A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Harounabadi et al. | V2X in 3GPP standardization: NR sidelink in release-16 and beyond | |
| CN109075908B (en) | Feedback information transmission method, device and system between Internet of vehicles equipment | |
| US11310007B2 (en) | Method and apparatus for configuring parameters in vehicle-to-everything system | |
| WO2015180551A1 (en) | Information sending method, information receiving method, apparatus and system | |
| US20200008095A1 (en) | Connectivity and feedback techniques for wireless broadcast services | |
| US11856445B2 (en) | Apparatus and method for providing direct communication services in wireless communication system | |
| CN111866760B (en) | Method for supporting device-to-device communication through QoS flow-based broadcasting and multicasting in wireless communication system | |
| US11627637B2 (en) | First road-side network node and method to operate the first road-side network node | |
| CN113453360B (en) | Data transmission method and device | |
| US20170359819A1 (en) | Neighborhood Awareness Network and Multi-Channel Operation over OFDMA | |
| CN110784923B (en) | Method and apparatus in a node used for wireless communication | |
| CN111093287A (en) | Data processing method and device, terminal equipment and storage medium | |
| CN114449602B (en) | Switching method, storage medium and wireless communication device | |
| CN114402656B (en) | Method and device for clearing retransmission resources based on confirmation | |
| CN101754099A (en) | Communication systems and methods with resource management for overlapping multicast and broadcast service zones | |
| CN116158016A (en) | Transmission method and device for MIMO system | |
| CN110291839B (en) | Unicast connection establishment method, device and storage medium | |
| CN117221827A (en) | Wireless communication method and wireless communication device | |
| US9226281B2 (en) | Method and apparatus for generating/parsing resource allocation indication message | |
| CN109167842B (en) | Content distribution and push business service system and method based on mixed broadcast mode | |
| CN103220248B (en) | A kind of data transmission method and equipment | |
| CN110830922B (en) | Multicast communication method, device and terminal of direct link | |
| CN114866210A (en) | Method and device for wireless communication of discontinuous reception | |
| US20230142451A1 (en) | Information transmission method and apparatus | |
| CN114097191B (en) | Communication method, device and system, computer storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |