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WO2025200684A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication

Info

Publication number
WO2025200684A1
WO2025200684A1 PCT/CN2024/144397 CN2024144397W WO2025200684A1 WO 2025200684 A1 WO2025200684 A1 WO 2025200684A1 CN 2024144397 W CN2024144397 W CN 2024144397W WO 2025200684 A1 WO2025200684 A1 WO 2025200684A1
Authority
WO
WIPO (PCT)
Prior art keywords
superframe
symbols
type
frame
frames
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
Application number
PCT/CN2024/144397
Other languages
English (en)
Chinese (zh)
Inventor
黄博
孙德福
唐云帅
黄博涵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2025200684A1 publication Critical patent/WO2025200684A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular to communication methods and devices.
  • G nodes In a wireless short-range communication system, there are grant (G) nodes and terminal (T) nodes.
  • a G node is a node that sends data scheduling information in the wireless short-range communication system
  • a T node is a node that receives data scheduling information and sends data based on it.
  • the short-range protocol in a wireless short-range communication system is referred to as the GT protocol.
  • each superframe lasts 1 millisecond (ms) and contains 48 first frames.
  • Each first frame contains a gap (GAP) for uplink and downlink switching, and the symbol length in each first frame is short.
  • GAP gap
  • This superframe structure is mainly suitable for short-point communications with extremely low latency services.
  • Next-generation GT wireless communication networks present new service requirements for coverage and speed, which the superframe structure of GT1.0 networks cannot meet.
  • next-generation GT networks must support standard coverage of 1 kilometer (km) and extended coverage of 10 km.
  • the superframe structure of GT1.0 networks has a short uplink and downlink switching time, with 48 uplink and downlink switching per 1ms, resulting in wasted resources and inability to expand coverage. Therefore, how to meet the communication requirements of next-generation GT networks has become an urgent issue.
  • a communication method is provided.
  • the method can be executed by a management node, or by a component of the management node, such as a processor, chip, or chip system of the management node, or by a logic module or software capable of implementing all or part of the management node.
  • the management node sends a superframe with a length of 1ms and containing less than 48 first frames.
  • the first frame in the superframe includes a first type frame for instructing the terminal node to switch uplink and downlink data.
  • the first type frame can be flexibly provided with at least one first symbol for the terminal node to switch uplink and downlink data, and the coverage can be extended to achieve short-distance (such as within 1 km) communication and long-distance (such as 1 to 18 km) communication.
  • Y is a positive integer.
  • each symbol in each first frame is a cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) symbol, and the length of the CP of each CP-OFDM symbol except the first CP-OFDM symbol in each first frame is Therefore, this design solution can flexibly set the length of the CP of the CP-OFDM symbol, thereby eliminating multipath interference.
  • CP-OFDM cyclic prefix-orthogonal frequency division multiplexing
  • the length of the CP of the first CP-OFDM symbol in each first frame is
  • the first frame in the superframe is a second-type frame.
  • the N first symbols include a first switching interval of consecutive length T 1 and a second switching interval of consecutive length T N - T 1.
  • the first switching interval is used to instruct a terminal node to switch from receiving downlink data to sending uplink data
  • the second switching interval is used to instruct the terminal node to switch from sending uplink data to receiving downlink data.
  • T N is the length of the N first symbols.
  • a superframe may include a switch from receiving downlink data to sending uplink data and a switch from sending uplink data to receiving downlink data.
  • the N first symbols used for uplink and downlink data switching in a first-type frame may be divided into a first switching interval and a second switching interval for the two switching directions.
  • a first type frame may include a continuous first part of symbols and a continuous second part of symbols, the first part of symbols includes Q continuously arranged second symbols, a first switching interval and P continuously arranged third symbols, the Q continuously arranged second symbols are located before the first switching interval, the P continuously arranged third symbols are located after the first switching interval, the second part of symbols includes a second switching interval, and the second part of symbols is located after the first part of symbols, wherein the first symbol is used to transmit downlink data, the second symbol is used to transmit uplink data, and P and Q are non-negative integers.
  • a first type frame can be divided into two parts according to the first switching interval and the second switching interval to reduce the number of switching times of the terminal node.
  • the second symbol may be a management symbol GS
  • the third symbol may be a terminal symbol TS.
  • the second type frames for transmitting downlink data are arranged continuously before the first part of symbols, and there are continuously arranged between the first part of symbols and the second part of symbols.
  • the third type of frame may be a terminal radio frame TF.
  • the method provided in an embodiment of the present application may further include: sending first indication information and second indication information to the terminal node, wherein the first indication information is used to indicate the number N of first symbols in the first type frame, and the second indication information is used to indicate the length of the second switching interval TN - T1 .
  • the length of the first switching interval can be implicitly indicated by the first indication information and the second indication information.
  • the second type frame includes X consecutively arranged second symbols.
  • the first type of frame may be a special radio frame SF.
  • S 4, 8, 12, or 16.
  • a communication method is provided.
  • the method can be executed by a terminal node, or by a component of the terminal node, a processor, a chip, or a chip system of the terminal node, or by a logic module or software that can implement all or part of the terminal node.
  • Y is a positive integer.
  • each symbol in each first frame is a cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) symbol, and the length of the CP of each CP-OFDM symbol except the first CP-OFDM symbol in each first frame is CP-OFDM.
  • CP-OFDM cyclic prefix-orthogonal frequency division multiplexing
  • the subcarrier spacing is 120 kHz
  • the OFDM length of each CP-OFDM symbol in each first frame is 256 ⁇ T s .
  • the first type of frame may include a continuous first part of symbols and a continuous second part of symbols, the first part of symbols includes Q continuously arranged second symbols, a first switching interval and P continuously arranged third symbols, the Q continuously arranged second symbols are located before the first switching interval, the P continuously arranged third symbols are located after the first switching interval, the second part of symbols includes a second switching interval, and the second part of symbols is located after the first part of symbols, wherein the first symbol is used to transmit downlink data, the second symbol is used to transmit uplink data, and P and Q are non-negative integers.
  • the second symbol may be a management symbol GS
  • the third symbol may be a terminal symbol TS.
  • the second type frames for transmitting downlink data are arranged continuously before the first part of symbols, and there are continuously arranged between the first part of symbols and the second part of symbols.
  • the second portion of symbols is located after P consecutively arranged third symbols.
  • the third type of frame may be a terminal radio frame TF.
  • the third type of frame includes X consecutively arranged third symbols.
  • the method provided in the embodiment of the present application may further include: receiving first indication information and second indication information from the management node, wherein the first indication information is used to indicate the number N of first symbols in the first type frame, and the second indication information is used to indicate the length T N -T 1 of the second switching interval.
  • the second type of frame may be a management radio frame GF.
  • the second type frame includes X consecutively arranged second symbols.
  • the first symbol may be a gap GAP symbol.
  • the first type of frame may be a special radio frame SF.
  • S 4, 8, 12, or 16.
  • the technical effects of the method described in the second aspect can refer to the relevant description of the technical effects of the method described in the first aspect above, and will not be elaborated on here.
  • a communication method is provided.
  • the method can be executed by a management node, or by a component of the management node, such as a processor, chip, or chip system of the management node, or by a logic module or software capable of implementing all or part of the management node.
  • the management node sends a superframe with a length of 1ms and a number S of first frames less than 48.
  • the first frame in the superframe includes 1, 2 or S first type frames for instructing the terminal node to switch uplink and downlink data.
  • the number of uplink and downlink switching of the terminal node can be reduced, thereby reducing the switching resource overhead.
  • each first frame includes X symbols.
  • X and Y are positive integers.
  • each symbol in each first frame is a cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) symbol, and the length of the CP of each CP-OFDM symbol except the first CP-OFDM symbol in each first frame is CP-OFDM.
  • CP-OFDM cyclic prefix-orthogonal frequency division multiplexing
  • the length of the CP of the first CP-OFDM symbol in each first frame is
  • the subcarrier spacing is 120 kHz
  • the OFDM length of each CP-OFDM symbol in each first frame is 256 ⁇ T s .
  • each first type frame includes N first symbols for the terminal node to switch between uplink and downlink data transmission and reception, where N ⁇ X and N and X are positive integers, and X is the number of symbols included in each first frame.
  • the S first frames further include M second-type frames for transmitting downlink data, where M is a positive integer and M ⁇ S.
  • the first frame in the superframe is a second-type frame.
  • the N first symbols include a first switching interval that is continuous and has a length of T1 and a second switching interval that is continuous and has a length of TN - T1 , wherein the first switching interval is used to indicate that the terminal node switches from receiving downlink data to sending uplink data, and the second switching interval is used to indicate that the terminal node switches from sending uplink data to receiving downlink data, and TN is the length of the N first symbols.
  • a first type frame includes a continuous first part of symbols and a continuous second part of symbols, the first part of symbols includes Q continuously arranged second symbols, a first switching interval and P continuously arranged third symbols, the Q continuously arranged second symbols are located before the first switching interval, and the P continuously arranged third symbols are located after the first switching interval, the second part of symbols includes the second switching interval, and the second part of symbols is located after the first part of symbols, wherein the second symbol is used to transmit downlink data, and the third symbol is used to transmit uplink data, and P and Q are non-negative integers.
  • the second symbol may be a management symbol GS
  • the third symbol may be a terminal symbol TS.
  • the third type of frame may be a terminal radio frame TF.
  • the third type frame includes X consecutively arranged third symbols, where X is a positive integer.
  • the method provided in the embodiment of the present application may further include: sending first indication information and second indication information to the terminal node, wherein the first indication information is used to indicate the number N of first symbols in the first type frame, and the second indication information is used to indicate the length T N -T 1 of the second switching interval.
  • the second type of frame may be a management radio frame GF.
  • the second type frame includes X consecutively arranged second symbols, where X is a positive integer.
  • the first symbol may be a gap GAP symbol.
  • the first type of frame may be a special radio frame SF.
  • S 4, 8, 12, or 16.
  • the technical effects of the method described in the third aspect can refer to the relevant description of the technical effects of the method described in the first aspect above, and will not be elaborated on here.
  • a communication method is provided.
  • the method can be executed by a terminal node, or by a component of the terminal node, a processor, a chip, or a chip system of the terminal node, or by a logic module or software that can implement all or part of the terminal node.
  • each symbol in each first frame is a cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) symbol, and the length of the CP of each CP-OFDM symbol except the first CP-OFDM symbol in each first frame is CP-OFDM.
  • CP-OFDM cyclic prefix-orthogonal frequency division multiplexing
  • the length of the CP of the first CP-OFDM symbol in each first frame is
  • the subcarrier spacing is 120 kHz
  • the OFDM length of each CP-OFDM symbol in each first frame is 256 ⁇ T s .
  • each first type frame includes N first symbols for the terminal node to switch between uplink and downlink data transmission and reception, where N ⁇ X and N and X are positive integers, and X is the number of symbols included in each first frame.
  • the S first frames further include M second-type frames for transmitting downlink data, where M is a positive integer and M ⁇ S.
  • the first frame in the superframe is a second-type frame.
  • the N first symbols include a first switching interval that is continuous and has a length of T1 and a second switching interval that is continuous and has a length of TN - T1 , wherein the first switching interval is used to indicate that the terminal node switches from receiving downlink data to sending uplink data, and the second switching interval is used to indicate that the terminal node switches from sending uplink data to receiving downlink data, and TN is the length of the N first symbols.
  • a first type frame includes a continuous first part of symbols and a continuous second part of symbols, the first part of symbols includes Q continuously arranged second symbols, a first switching interval and P continuously arranged third symbols, the Q continuously arranged second symbols are located before the first switching interval, and the P continuously arranged third symbols are located after the first switching interval, the second part of symbols includes the second switching interval, and the second part of symbols is located after the first part of symbols, wherein the second symbol is used to transmit downlink data, and the third symbol is used to transmit uplink data, and P and Q are non-negative integers.
  • the second symbol may be a management symbol GS
  • the third symbol may be a terminal symbol TS.
  • the third type of frame may be a terminal radio frame TF.
  • the third type frame includes X consecutively arranged third symbols, where X is a positive integer.
  • the method provided in the embodiment of the present application may further include: receiving first indication information and second indication information from the management node, wherein the first indication information is used to indicate the number N of first symbols in the first type frame, and the second indication information is used to indicate the length T N -T 1 of the second switching interval.
  • the second type of frame may be a management radio frame GF.
  • the first symbol may be a gap GAP symbol.
  • the first type of frame may be a special radio frame SF.
  • S 4, 8, 12, or 16.
  • the technical effects of the method described in the fourth aspect can refer to the relevant description of the technical effects of the method described in the first aspect above, and will not be elaborated on here.
  • a communication device which is used to realize the transmission of star flash signals, and includes: a module for generating at least one superframe, and a module for sending at least one superframe to a terminal node.
  • the length of each superframe in the at least one superframe is 1 millisecond
  • each superframe includes S first frames
  • the S first frames include first type frames
  • a is a positive integer and 1 ⁇ a ⁇ 24
  • N ⁇ X and N and X are positive integers
  • X is the number of symbols contained in each first frame.
  • each superframe in the at least one superframe is 1 millisecond ms
  • each superframe includes S first frames
  • the S first frames include K first type frames
  • the communication apparatus further includes: a module configured to send first indication information and second indication information to the terminal node, wherein the first indication information is configured to indicate the number N of first symbols in the first type frame, and the second indication information is configured to indicate the length T N -T 1 of the second switching interval.
  • the above-mentioned communication device is also used to realize the transmission of Bluetooth signals or WiFi signals, and at least one of the Star Flash module, the Bluetooth module and the WiFi module shares at least one of the radio frequency (RF) unit, the modem unit, the medium access control (MAC) unit and the central processing unit (CPU).
  • RF radio frequency
  • MAC medium access control
  • CPU central processing unit
  • the communication device is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals.
  • the Star Flash module and the Bluetooth module are located in the same subsystem of the communication device, and the subsystem and the power management module (PMU) are integrated in the communication device.
  • PMU power management module
  • the communication device is also used to realize the transmission of Bluetooth signals or WiFi signals.
  • At least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.
  • the communication device is further used to: determine the type of the opposite device and/or the service delay of the opposite device, and determine the link corresponding to the opposite device and/or the service for data transmission according to the link selection strategy.
  • the communication device is also used to: determine the type of the peer device and/or the service delay of the peer device, including: determining the type of the peer device, the type of the peer device includes an audio device type or a non-audio device type; when the type of the peer device is an audio device type, determining the service delay of the peer device.
  • the link selection strategy includes: when the service delay is greater than a first value, establishing an asynchronous unicast link or an asynchronous multicast link before performing data transmission; or, when the service delay is less than the first value and greater than a second value, establishing an asynchronous unicast link or an asynchronous multicast link, achieving synchronization by adding timestamps to data packets, and then performing data transmission; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link before performing data transmission.
  • the communication device is further configured to: determine the type of the peer device and/or the service delay of the peer device, and determine the frame format type corresponding to the type of the peer device and/or the service type of the peer device according to the frame format selection strategy.
  • the frame format type includes Starflash Wireless Frame Type 1, Starflash Wireless Frame Type 2, Starflash Wireless Frame Type 3, or Starflash Wireless Frame Type 4.
  • the communication device is also used to: determine the type of the peer device and/or the service delay of the peer device, including: determining the type of the peer device, the type of the peer device includes an audio device type or a non-audio device type; when the type of the peer device is an audio device type, determining the service delay of the peer device.
  • the above-mentioned frame format selection strategy includes: when the service delay requirement of the opposite device is less than the first duration, selecting Star Flash Wireless Frame Type 1 for broadcast access, and switching to Star Flash Wireless Frame Type 2 through physical layer parameter negotiation after entering the connected state; or, when the service delay requirement of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash Wireless Frame Type 1 for broadcast access, and switching to Star Flash Wireless Frame Type 2 or Star Flash Wireless Frame Type 3 through physical layer parameter negotiation after entering the connected state; or, when the type of the opposite device is only supported In the case of a device supporting Starflash wireless frame type 1, or a device with a maximum transmission power greater than a first power threshold, Starflash wireless frame type 1 is selected for broadcast access; or, in the case that the service type of the opposite device is the Internet of Things (IOT) ultra-long distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, Starflash wireless frame type 4 is selected for broadcast and connection,
  • IOT
  • the communication device includes: a module for receiving at least one superframe, and a module for receiving downlink data and/or sending uplink data according to at least one superframe.
  • each superframe in the at least one superframe is 1 millisecond ms
  • each superframe includes S first frames
  • the S first frames include K first type frames
  • the communication device further includes: a module configured to receive first indication information and second indication information from the management node, wherein the first indication information is configured to indicate the number N of first symbols in the first type frame, and the second indication information is configured to indicate the length T N -T 1 of the second switching interval.
  • the communication device is also used to realize the transmission of Bluetooth signals or WiFi signals, and at least one of the Star Flash module, Bluetooth module and WiFi module shares at least one of the RF unit, modem unit, MAC unit and CPU.
  • the communication device is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals.
  • the Star Flash module and the Bluetooth module are located in the same subsystem of the communication device, and the subsystem and PMU are integrated in the communication device.
  • the communication device is also used to realize the transmission of Bluetooth signals or WiFi signals.
  • At least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.
  • the communication device is further used to: determine the type of the opposite device and/or the service delay of the opposite device, and determine the link corresponding to the opposite device and/or the service for data transmission according to the link selection strategy.
  • the communication device is also used to: determine the type of the peer device and/or the service delay of the peer device, including: determining the type of the peer device, the type of the peer device includes an audio device type or a non-audio device type; when the type of the peer device is an audio device type, determining the service delay of the peer device.
  • the link selection strategy includes: when the service delay is greater than a first value, establishing an asynchronous unicast link or an asynchronous multicast link before performing data transmission; or, when the service delay is less than the first value and greater than a second value, establishing an asynchronous unicast link or an asynchronous multicast link, achieving synchronization by adding timestamps to data packets, and then performing data transmission; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link before performing data transmission.
  • the communication device when the communication device is a non-audio device, the communication device is further configured to: transmit data via an asynchronous unicast or asynchronous multicast link.
  • the communication device is also used to: determine the type of the opposite device and/or the service delay of the opposite device, and determine the frame format type corresponding to the type of the opposite device and/or the service type of the opposite device according to the frame format selection strategy; wherein the frame format type includes Star Flash Wireless Frame Type 1, Star Flash Wireless Frame Type 2, Star Flash Wireless Frame Type 3 or Star Flash Wireless Frame Type 4.
  • the communication device is also used to: determine the type of the peer device and/or the service delay of the peer device, including: determining the type of the peer device, the type of the peer device includes an audio device type or a non-audio device type; when the type of the peer device is an audio device type, determining the service delay of the peer device.
  • the above-mentioned frame format selection strategy includes: when the service delay requirement of the opposite device is less than the first duration, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or, when the service delay requirement of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation after entering the connection state; or, when the type of the opposite device is a device that only supports Star Flash wireless frame type 1, or a device with a maximum transmission power greater than the first power threshold, selecting Star Flash wireless frame type 1 for broadcast access; or, when the service type of the opposite device is IOT ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, selecting Star Flash wireless frame type 4 for broadcast and connection, or, when the distance between the opposite device and the communication device is less than or
  • the communication device when the communication device is a non-audio device, the communication device is also used to: select Starflash wireless frame type 1 for broadcast access, and after entering the connection state, switch to Starflash wireless frame type 2 for data transmission through physical layer parameter negotiation.
  • a communication device for example, the communication device may be a chip or a chip system
  • the communication device includes: a processor configured to implement the functions involved in any of the above aspects.
  • the communication device may further include a memory for storing necessary program instructions and data.
  • a processor is coupled to the memory, and the processor is configured to execute the computer program or instructions stored in the memory, causing the communication device to perform the method described in any possible implementation of aspects 1 to 4.
  • the communication device described in the seventh aspect may further include a transceiver.
  • the transceiver may be a transceiver circuit or an interface circuit.
  • the transceiver may be used for the communication device described in the seventh aspect to communicate with other communication devices.
  • the processor can be integrated with the memory.
  • the device when it is a chip system, it can be composed of a chip or include a chip and other discrete devices.
  • a communication device which includes a processor and an interface circuit, the interface circuit being used to receive signals from other communication devices outside the communication device and transmit them to the processor or to send signals from the processor to other communication devices outside the communication device, and the processor being used to implement the method described in any possible implementation method of the first to fourth aspects through a logic circuit or by executing code instructions.
  • the above-mentioned sending action/function can be understood as output, and the above-mentioned receiving action/function can be understood as input.
  • a communication chip in which instructions are stored.
  • the method described in any one of the first to fourth aspects is implemented.
  • a computer-readable storage medium which stores a computer program or instruction.
  • the communication device can execute the method described in any one of the first to fourth aspects above.
  • a computer program product containing instructions including computer program code, which, when the computer program code is run on a communication device, enables the communication device to execute the method described in any one of the first to fourth aspects above.
  • a communication system comprising: a management node for implementing the method described in the first aspect above, and a terminal node for implementing the method described in the second aspect above.
  • a communication system comprising: a management node for implementing the method described in the third aspect above, and a terminal node for implementing the method described in the fourth aspect above.
  • Figure 1 is a schematic diagram of the structure of a superframe in the GT1.0 protocol
  • FIG2 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application.
  • FIG3 is a flow chart of a communication method provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of the structure of a first type frame provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of the structure of a second type frame and a third type frame provided in an embodiment of the present application;
  • FIG6 is a schematic diagram of the structures of various superframes provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of a chip architecture provided in an embodiment of the present application.
  • FIG9 is a schematic diagram of another chip architecture provided in an embodiment of the present application.
  • FIG10 is a schematic diagram of another chip architecture provided in an embodiment of the present application.
  • FIG11 is a schematic diagram of another chip architecture provided in an embodiment of the present application.
  • FIG12 is a schematic diagram of a chip module framework provided in an embodiment of the present application.
  • FIG13 is a schematic diagram of another chip module framework provided in an embodiment of the present application.
  • FIG14 is a schematic diagram of another chip module framework provided in an embodiment of the present application.
  • FIG15 is a schematic diagram of a framework of a software static policy provided in an embodiment of the present application.
  • FIG16 is a schematic diagram of a framework of a hardware time-division arbitration (PTA) strategy provided in an embodiment of the present application;
  • PTA hardware time-division arbitration
  • FIG17 is a schematic diagram of a link establishment process according to an embodiment of the present application.
  • FIG18 is a schematic diagram of another link establishment process provided in an embodiment of the present application.
  • FIG19 is a schematic diagram of another link establishment process provided in an embodiment of the present application.
  • FIG20 is a schematic diagram of a flow chart of another link establishment process provided in an embodiment of the present application.
  • FIG21 is a schematic diagram of another link establishment process provided in an embodiment of the present application.
  • FIG22 is a schematic diagram of another link establishment process provided in an embodiment of the present application.
  • FIG23 is a schematic diagram showing the structures of four different radio frame types defined in the Star Flash protocol.
  • FIG24 is a diagram illustrating an example of a frame format application in a scenario provided by an embodiment of the present application.
  • FIG25 is a diagram illustrating an example of a frame format application in another scenario provided by an embodiment of the present application.
  • FIG26 is a diagram illustrating an example of a frame format application in another scenario provided by an embodiment of the present application.
  • FIG27 is a diagram illustrating an example of a frame format application in another scenario provided by an embodiment of the present application.
  • FIG28 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
  • FIG29 is a schematic structural diagram of another communication device provided in an embodiment of the present application.
  • Figure 30 is a structural diagram of another communication device provided in an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to, but not limited to, wireless short-range communication systems and wireless communication systems (such as the next-generation GT network wireless communication system) that support longer-range transmission (such as 1 to 18 km, or more than 18 km).
  • the wireless short-range communication system mainly includes vehicle-mounted wireless short-range communication technology (also known as Star Flash 1.0 technology), which has the advantages of ultra-low latency, ultra-high reliability, and precise synchronization, and is suitable for applications in scenarios such as smart cars, smart homes, smart terminals, and smart manufacturing.
  • applications in smart car scenarios include: immersive in-car sound field & noise reduction, wireless interactive projection, and 360-degree panoramic view, which can achieve an immersive interactive experience and improve vehicle safety.
  • Wireless communication systems that support longer-distance transmission (e.g., 1-18 km) mainly include next-generation GT network wireless communication systems, such as the GT1.5 network wireless communication system and the GT2.0 network wireless communication system. These systems are not only suitable for communication scenarios with low latency requirements, such as the aforementioned in-vehicle communications and industrial control scenarios, but can also be used in communication scenarios with low latency requirements.
  • the above-mentioned communication system may be used in combination with a mobile communication system
  • the mobile communication system includes but is not limited to the fourth generation (4G) communication system (e.g., long term evolution (LTE) system), the fifth generation (5G) communication system (e.g., new radio (NR) system), and future mobile communication systems such as the sixth generation (6G) mobile communication system.
  • 4G fourth generation
  • 5G fifth generation
  • NR new radio
  • uplink and downlink transmission exist between G nodes and T nodes.
  • Uplink transmission is achieved through the T link, which is the link between the T node and the G node, also known as the uplink;
  • downlink transmission is achieved through the G link, which is the link between the G node and the T node, also known as the downlink.
  • a 1ms superframe is used for data transmission between G nodes and T nodes.
  • This superframe structure is primarily suitable for short-distance communication and low-latency business scenarios.
  • the 1ms superframe contains 48 radio frames, each of which is 20.83 microseconds ( ⁇ s) long. Since the system sampling frequency Fs is 30.72 megahertz (MHz), the 1ms superframe is 30720 ⁇ Ts , and a 20.83 ⁇ s radio frame is 640 ⁇ Ts , where
  • Each radio frame includes multiple cyclic prefix (CP)-orthogonal frequency division multiplexing (OFDM) symbols, that is, the CP-OFDM symbol includes a cyclic prefix part and a valid data part in the time domain, and the valid data part is 64 ⁇ T s in length.
  • the CP includes a regular CP length of 5 ⁇ T s and an extended CP length of 14 ⁇ T s .
  • the corresponding CP-OFDM symbol includes a CP-OFDM symbol with a length of 69 ⁇ T s set based on the length of the regular CP and a CP-OFDM symbol with a length of 78 ⁇ T s set based on the length of the extended CP.
  • the embodiment of the present application uses symbol as an abbreviation for CP-OFDM symbol.
  • G-link transmission and T-link transmission use different symbols in the radio frame.
  • the symbols used for G-link transmission are called G symbols, and the symbols used for T-link transmission are called T symbols.
  • a radio frame consists of one or more G symbols, a first switching interval (GAP1), one or more T symbols, and a second switching interval (GAP2).
  • GAP1 is used to instruct the T node to switch from receiving downlink data to sending uplink data
  • GAP2 is used to instruct the T node to switch from sending uplink data to receiving downlink data.
  • GT1.5 next-generation GT
  • next-generation GT wireless communication network requires conventional coverage to support 1 km and extended long-distance coverage to support 10 km.
  • the switching interval cannot support transmission over longer distances, thus failing to meet the transmission requirements of extended coverage.
  • the superframe structure of the GT1.0 network is primarily used for extremely low-latency audio noise reduction services. Therefore, the number of uplink and downlink handoffs per 1ms is excessive (up to 48). However, in the next-generation GT wireless communication network, most services have lower latency requirements. Excessive handoffs not only waste resources but also limit coverage expansion.
  • the superframe structure of the GT1.0 network is mainly used for short-distance communication.
  • the CP length of each symbol in the superframe is relatively short.
  • the application scenarios of the next-generation GT network cover long distances and the channel conditions are more complex.
  • the CP length of the superframe in the GT1.0 network cannot resist multipath interference.
  • the embodiment of the present application provides a communication method that can meet the communication needs of the next generation GT network by sending a superframe with fewer uplink and downlink switching times and reduced overhead.
  • the first, second, and various numerical numbers are merely distinctions made for ease of description and are not intended to limit the scope of the embodiments of the present application.
  • different indication information is distinguished.
  • the first duration and the second duration are merely to distinguish different lengths of time and do not limit their order.
  • references such as "when", “in the case of", “if” and “if” all mean that the device (such as a terminal node or a management node) will make corresponding processing under certain objective circumstances. It does not limit the time, and does not require the device (such as a terminal node or a management node) to have a judgment action when implementing it, nor does it mean that there are other limitations.
  • words such as “exemplary” or “for example” are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as “exemplary” or “for example” in the embodiments of this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Rather, the use of words such as “exemplary” or “for example” is intended to present the relevant concepts in a concrete manner to facilitate understanding.
  • the communication system shown in Figure 2 is used as an example to describe in detail a communication system applicable to an embodiment of the present application.
  • the communication system includes at least one management node and at least one terminal node.
  • the management node is the node in the communication system that sends data scheduling information
  • the terminal node is the node in the communication system that receives data scheduling information and sends data based on the data scheduling information.
  • the communication system can be a Star Flash communication system or a Bluetooth communication system.
  • the communication system shown in Figure 2 is applicable to a single-carrier system with a bandwidth of 20 MHz and a subcarrier width of 120 kHz in time division duplexing (TDD) mode, or a multi-carrier aggregation system with a bandwidth of 20, 40, 60, 80, 100, 120, 140 or 160 MHz.
  • TDD time division duplexing
  • the management node is located on the network side of the communication system to help terminal nodes achieve wireless access. It is a device with wireless transceiver capabilities or a chip or chip system that can be installed in the device.
  • the management node includes, but is not limited to, a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP or transmission point, TP), a next-generation NodeB (gNB), a next-generation base station in a sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access point (AP) in a wireless fidelity (Wi-Fi) system.
  • eNodeB evolved NodeB
  • AP access point
  • TRP or transmission point Transmission reception point
  • TP transmission reception point
  • gNB next-generation NodeB
  • 6G sixth-generation
  • 6G sixth-generation
  • AP wireless fidelity
  • the management node can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in an open radio access network (ORAN) or a centralized radio access network (CRAN) scenario.
  • a management node can also be one or a group of antenna panels (including multiple antenna panels) of a fifth-generation (5G) base station, or a network node that constitutes a gNB, TRP, TP, or transmission measurement function (TMF), such as a central unit (CU), distributed unit (DU), CU-control plane (CP), CU-user plane (UP), or radio unit (RU), or a roadside unit (RSU) with base station functionality.
  • 5G fifth-generation
  • TRP transmission measurement function
  • CP central unit
  • CP CU-control plane
  • UP CU-user plane
  • RU radio unit
  • RSU roadside unit
  • a management node can also be a server, wearable device, vehicle, or onboard equipment.
  • the management node in vehicle-to-everything (V2X) technology can be an RSU.
  • a management node can be a control unit in an autonomous vehicle, a central controller in a smart factory or smart home, or a handheld or automated remote control system for an aircraft.
  • a management node can be a central control panel or other control device, such as a drone controller or a control unit in industrial control. All or part of the functions of the management node in this application may also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).
  • the management node in this application may also be a logical node, logical module, or software that can implement all or part of the management node functions.
  • the embodiment of the present application does not limit the form of the management node.
  • the device used to implement the functions of the management node can be a management node; it can also be a device that can support the management node to implement the functions, such as a chip system.
  • the device can be installed in the management node or used in conjunction with the management node.
  • a terminal node is a device, apparatus, module, chip or chip system with transceiver functions, and the terminal node may also be referred to as user equipment (UE), access terminal, subscriber unit, user station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • UE user equipment
  • MS mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • the terminal node in the embodiments of the present application may be a mobile phone, a cellular phone, a smart phone, a tablet computer, a wireless data card, a personal digital assistant (PDA), a wireless modem, a handheld device, a laptop computer, a machine type communication (MTC) terminal, a computer with wireless transceiver functions, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a smart home device (e.g., refrigerators, televisions, air conditioners, electric meters, etc.), intelligent robots, robotic arms, workshop equipment, wireless terminals in unmanned driving, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, vehicle-mounted terminals, roadside units (RSUs) with terminal functions, etc., flying equipment (e.g., intelligent robots, hot air balloons, drones, airplanes), etc.
  • the terminal node of the present application may also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit built into a vehicle as one or more components or units.
  • the terminal node may also be other devices with terminal functions, for example, the terminal node may also be a device that functions as a terminal in device-to-device (D2D) communication.
  • D2D device-to-device
  • the embodiments of this application do not limit the device form factor of the terminal.
  • the device used to implement the function of the terminal node can be a terminal node; it can also be a device that can support the terminal node to implement the function, such as a chip system.
  • the device can be installed in the terminal node or used in conjunction with the terminal node.
  • the chip system can be composed of a chip or can include a chip and other discrete devices.
  • FIG3 is a flow chart of a communication method provided in an embodiment of the present application.
  • the communication method is described using the communication between the management node and the terminal node shown in FIG2 as an example.
  • the subject that executes the management node action in the method can also be a device/module in the management node, such as a chip, processor, processing unit, etc. in the management node;
  • the subject that executes the terminal node action in the method can also be a device/module in the terminal node, such as a chip, processor, processing unit, etc. in the terminal node, and the embodiment of the present application does not specifically limit this.
  • the communication method includes:
  • the management node generates at least one superframe.
  • S302 The management node sends at least one superframe to the terminal node.
  • the terminal node receives at least one superframe from the management node.
  • the terminal node receives downlink data and sends uplink data according to at least one superframe.
  • Each superframe in at least one superframe has a length of 1ms.
  • Each superframe is used to transmit uplink data and/or downlink data.
  • the uplink data may include uplink control information and uplink service data
  • the downlink data may include downlink control information and downlink service data.
  • each superframe includes S first frames, each of which contains X symbols. It can be understood that each superframe consists of S first frames, each of which consists of X symbols.
  • S 2a
  • a is a positive integer and 1 ⁇ a ⁇ 24.
  • S 4, 8, 12, or 16.
  • the first frame may also be referred to as a radio frame.
  • the sampling frequency Fs of the communication between the management node and the terminal node is 30.72 MHz, and the corresponding basic time unit is Therefore, a superframe of 1 ms can be expressed as a superframe of 30720 ⁇ T s .
  • Tf 2560 ⁇ Ts
  • the length of each symbol is
  • the length of each symbol is related to the symbol length of the first frame and the number of symbols contained.
  • the X symbols contained in the first frame they are usually CP-OFDM symbols. Due to different designs of the length of the CP-OFDM symbol, there are two designs for the CP of the X CP-OFDM symbols:
  • each first frame contains 12 CP-OFDM symbols
  • the length of the CP in each CP-OFDM symbol is
  • each first frame contains 10 CP-OFDM symbols
  • the length of the CP in each CP-OFDM symbol is
  • the length of the CP in each CP-OFDM symbol is generally designed to be 64 ⁇ T s or 128 ⁇ T s .
  • each first frame contains 8 CP-OFDM symbols
  • the length of the CP in each CP-OFDM symbol is
  • the length of the CP in each CP-OFDM symbol is generally designed to be 64 ⁇ T s .
  • Design 1 is designed for the scenario where the length Tf of the first frame is divisible by the number X of symbols contained in the first frame.
  • Design 2 The length of the CP of the first CP-OFDM symbol in each first frame is different from the lengths of the CPs of the remaining X-1 CP-OFDM symbols.
  • the length of the CP of the first CP-OFDM symbol in each first frame is The length of the CP of each CP-OFDM symbol except the first CP-OFDM symbol is
  • each first frame contains 14 CP-OFDM symbols
  • each first frame contains 13 CP-OFDM symbols
  • each first frame contains 14 CP-OFDM symbols
  • each first frame contains 7 CP-OFDM symbols
  • Design 2 is designed for the scenario where the length of the first frame Tf is not divisible by the number of symbols X contained in the first frame.
  • the length of the CP of the first CP-OFDM symbol in each first frame is longer than the length of the CP of other CP-OFDM symbols.
  • the embodiment of the present application uses symbol as the abbreviation of CP-OFDM symbol. Based on the above design scheme, the length of CP can be flexibly configured to effectively resist the influence of multipath.
  • the management node when the number S of the first frames contained in the superframe is determined, can use the above-mentioned implementation method to determine the number of symbols X contained in the first frame, the length of the CP used, and the length of OFDM based on the channel status, service type, service delay, etc.
  • Table 1 shows the correspondence between one or more sets of agreed upon or pre-configured number X of symbols included in the first frame, the length T cp of the CP used, and the length T symbol of the CP-OFDM. Each symbol number X corresponds to T cp and T symbol for each symbol.
  • the management node can select an appropriate set of symbol number X, CP length, and OFDM length from one or more sets of corresponding relationships agreed upon or pre-configured in the protocol as shown in Table 1 above based on the channel state, service type, service delay, etc., to generate S first frames, thereby obtaining a superframe with a length of 1 ms.
  • the terminal node can also determine the CP length through blind detection.
  • the S first frames include a first type frame
  • the first type frame is a first frame for a terminal node to perform uplink and downlink data transceiver switching.
  • the first type frame includes N first symbols for the terminal node to perform uplink and downlink data transceiver switching.
  • the first type frame may also include a second symbol for transmitting downlink data and/or a third symbol for transmitting uplink data, where N is a positive integer and N ⁇ X. That is to say, among the X symbols included in the first type frame, in addition to the first symbol for data transceiver switching, the second symbol for transmitting downlink data and/or the third symbol for transmitting uplink data is also included.
  • the first type frame can be used not only for the terminal node to perform uplink and downlink data transceiver switching, but also for transmitting downlink data and/or uplink data.
  • the first type of frame may be called a special radio frame (SF)
  • the first symbol may be called a gap (GAP) symbol
  • the second symbol may be called a grant symbol (GS)
  • the third symbol may be called a terminal symbol (TS).
  • SF special radio frame
  • GAP gap
  • GS grant symbol
  • TS terminal symbol
  • the number of first symbols, the number of second symbols, and the number of third symbols included in the first type frame may be indicated to the terminal node by the management node through indication information.
  • the management node sends first indication information and third indication information to the terminal node, and the terminal node receives the first indication information and third indication information from the management node.
  • the first indication information is used to indicate the number N of first symbols in the first type frame
  • the third indication information is used to indicate the number Q of second symbols in the first type frame.
  • the terminal node may determine the number of first symbols, the number of second symbols, and the number of third symbols based on the first indication information and the third indication information.
  • the first indication information and the third indication information can arbitrarily indicate the number of any two of the three symbols, and the third symbol can be implicitly indicated by the first indication information and the third indication information, without limitation.
  • the first indication information is used to indicate the number of first symbols in a first type of frame
  • the third indication information is used to indicate the number of third symbols.
  • the number of second symbols can be implicitly indicated by the first indication information and the third indication information.
  • the first indication information and the third indication information may be sent separately or together, such as by being carried in a system message.
  • the first indication information and the third indication information may also be sent via messages or signaling such as radio resource control (RRC) messages or media access control (MAC) signaling, without limitation.
  • RRC radio resource control
  • MAC media access control
  • the number N of first symbols used for uplink and downlink data switching may also be agreed upon or pre-configured by protocol, such as agreeing upon or pre-configuring one or more fixed N values.
  • different N values may be used for different types of service transmissions.
  • Each N value may correspond to one index.
  • the management node may select an N value according to the service type and indicate the number of first symbols in the first type frame by sending the index.
  • the data switching of the terminal node may include two types, one is the switching from receiving data to sending data, and the other is the switching from sending data to receiving data.
  • the length of the N first symbols is the total duration for the terminal node to perform the above two switches. Therefore, the N first symbols can be divided into two switching durations.
  • the N first symbols may include a first switching interval of continuous length T1 and a second switching interval of continuous length TN - T1 .
  • the first switching interval is used to instruct the terminal node to switch from receiving downlink data to sending uplink data
  • the first switching interval may include the timing advance time of the terminal node and the switching time between receiving and sending.
  • the second switching interval is used to instruct the terminal node to switch from sending uplink data to receiving downlink data
  • TN is the length of the N first symbols.
  • the first switching interval may be referred to as GAP1
  • the second switching interval may be referred to as GAP2.
  • the N first symbols in a first type frame can be used by the terminal node to perform two switchings, one from receiving data to sending data, and one from sending data to receiving data. These two switchings can constitute a set of switching processes.
  • the management node may indicate the lengths of the first switching interval and the second switching interval through indication information.
  • the management node may send the first indication information and the second indication information to the terminal node, and correspondingly, the terminal node receives the first indication information and the second indication information from the management node.
  • the first indication information is used to indicate the number N of first symbols in the first type frame
  • the second indication information may also be used to indicate the length of the first switching interval, and the first switching interval is implicitly indicated by the first indication information and the second indication information, and this is not limited.
  • the first indication information and the second indication information may be sent separately or together, such as by being carried in a system message.
  • the first indication information and the second indication information may also be sent via messages or signaling such as radio resource control (RRC) messages or MAC signaling, without limitation.
  • RRC radio resource control
  • the first type frame can be divided into two parts based on two handover intervals, and the first type frame can include a continuous first part of symbols and a continuous second part of symbols.
  • the first part of symbols includes Q continuously arranged second symbols, a first handover interval, and P continuously arranged third symbols, the Q continuously arranged second symbols are located before the first handover interval, the P continuously arranged third symbols are located after the first handover interval, the second part of symbols includes the second handover interval, and the second part of symbols is located after the first part of symbols.
  • the structures of the first part of symbols and the second part of symbols in the first type frame are shown in (a) of Figure 4, the second symbol is represented as GS, the third symbol is represented as TS, the first switching interval is represented as GAP1, and the second switching interval is represented as GAP2.
  • Q GSs are arranged continuously before GAP1
  • P TSs are arranged continuously after GAP1
  • GAP1 in the first part of symbols and GAP2 in the second part of symbols constitute N first symbols. Therefore, the structure of the first type frame can be equivalently represented as shown in (b) of Figure 4.
  • the number of uplink and downlink switching times of the terminal node is positively correlated with the number of first type frames.
  • the time when the uplink and downlink data switching occurs at the terminal node is related to the position of the first switching interval and the second switching interval in the superframe.
  • the position of the first switching interval and the second switching interval contained in each first type frame in the superframe is related to the position arrangement of the second symbol for transmitting downlink data and the third symbol for transmitting downlink data in the superframe.
  • the specific structural design of the superframe mainly considers the number of first type frames and the position of the first type frames in the superframe, and the design of the number and position of the first type frames is mainly related to the service type and service delay.
  • the number of first type frames contained in each superframe can include the following three designs, that is, K first frames out of the S first frames contained in each superframe are first type frames:
  • each superframe may also include M second-type frames for transmitting downlink data. That is, M of the S first frames are second-type frames, and the first first frame in each superframe is a second-type frame, where M is a positive integer and M ⁇ S. Since the second-type frame is used to transmit downlink data, the second-type frame includes X consecutively arranged second symbols for transmitting downlink data, as shown in (a) of FIG5 , where the second symbol is represented by a GS. One second-type frame consists of X consecutively arranged GSs. In some embodiments, the second-type frame may be referred to as a grant frame (GF).
  • GF grant frame
  • the superframe has the following two structural designs based on Design 1:
  • the first M superframes in a superframe are all second-type frames, and the first part of the symbols and the second part of the symbols in a first-type frame are arranged in sequence after the M superframes, that is, the first part of the symbols is located between the consecutively arranged M second-type frames and the second part of the symbols.
  • the first type frame is denoted as SF
  • the second type frame is denoted as GF
  • the second symbol is denoted as GS
  • the third symbol is denoted as TS
  • the first switching interval is denoted as GAP1
  • the second switching interval is denoted as GAP2.
  • the Sth first frame is a first type frame
  • the first partial symbols of the first type frame are located between the M second type frames and the second partial symbols.
  • M second type frames, the first partial symbols of the first type frames, and the second partial symbols of the first type frames are sequentially arranged from left to right.
  • Structure 2 When a first-type frame is not the last first frame in a superframe, in each superframe, M second-type frames for transmitting downlink data are continuously arranged before the first part of the symbols, and S-K-M third-type frames for transmitting uplink data are continuously arranged between the first part of the symbols and the second part of the symbols, where M ⁇ [1,S-2].
  • the third type frame Since the third type frame is used to transmit uplink data, the third type frame includes X consecutively arranged third symbols for transmitting uplink data, as shown in FIG5(b).
  • the third symbol is represented by a TS, and one third type frame is composed of X consecutively arranged TSs.
  • the third type frame may be referred to as a terminal radio frame (TF).
  • one superframe also includes a third type frame.
  • the first part of the symbols in one first type frame is located between M consecutively arranged second type frames and S-M-1 consecutively arranged third type frames
  • the second part of the symbols of the one first type frame is located after the S-M-1 consecutively arranged third type frames.
  • the first type frame is denoted as SF
  • the second type frame is denoted as GF
  • the third type frame is denoted as TF
  • the second symbol is denoted as GS
  • the third symbol is denoted as TS
  • the first switching interval is denoted as GAP1
  • the second switching interval is denoted as GAP2.
  • the first M superframes are all second type frames
  • the first partial symbols of a first type frame are arranged after the M second type frames
  • the first partial symbols are followed by S-M-1 consecutive third type frames and the second partial symbols of the first type frame.
  • M second type frames, the first partial symbols of the first type frame, S-M-1 third type frames, and the second partial symbols of the first type frame are arranged sequentially from left to right.
  • the frame sequence number of a first-type frame in a superframe is the frame sequence number corresponding to the time domain position of the first portion of symbols of the first-type frame. For example, if the sequence numbers of the S first frames included in a superframe are 0 to S-1, and the first portion of symbols of a first-type frame included in the superframe is located within the position range of the first frame with sequence number 2 in the time domain, then the sequence number of the first-type frame included in the superframe is 2. It should be understood that in some embodiments, the sequence numbers of the S first frames in a superframe may also be numbered consecutively starting from 1, such as the sequence numbers of the S first frames being 1 to S.
  • the one first type frame can be any first frame numbered 1 to S-2, that is, the first part of the symbols of the one first type frame can be located at the time domain position of any first radio frame except the first first radio frame and the last radio frame.
  • the structure 2 can be further divided into structures 2-1 to structure 2-S-2.
  • the superframe with structure 2-1 includes S-2 second type frames, 1 first type frame and 1 third type frame
  • the superframe with structure 2-2 includes S-3 second type frames, 1 first type frame and 2 third type frames, ... (and so on)
  • the superframe with structure 2-S-2 includes 1 second type frame, 1 first type frame and S-2 third type frames.
  • the two superframe structures designed based on the above Design 1 can be called Class A superframe structures, which include one first-type frame, so that uplink and downlink data transmission are uniformly scheduled and switched within 1ms, and can support 1ms-level transmission delay applications.
  • the second interval symbol is used for the terminal node to switch from sending uplink data in the current superframe to receiving uplink data in the next superframe.
  • each superframe may also include M second-type frames for transmitting downlink data. That is, M of the S first frames are second-type frames. Furthermore, a superframe includes two consecutive half-superframes, each of which includes one first-type frame, and the first first frame in each half-superframe is a second-type frame.
  • one superframe consists of two half superframes with the same structure, and each half superframe contains one first type frame and second type frames, and the first first frame in each half superframe is the second type frame.
  • the superframe has the following two structural designs:
  • each half superframe contains The first frame,
  • the first frames are all second type frames, the last first frame is a first type frame, and the first part of the symbols of the first type frame is located at between the consecutively arranged second type frames and the second part of symbols of the one first type frame.
  • the first type of frame is represented as SF
  • the second type of frame is represented as GF
  • the second symbol is represented as GS
  • the third symbol is represented as TS
  • the first switching interval is represented as GAP1
  • the second switching interval is represented as GAP2.
  • the structures of the first half superframe and the second half superframe in a superframe are the same.
  • the first to third superframes are The first frames are all second type frames, The first part of symbols and the second part of symbols are arranged in sequence after the second type frame.
  • Structure 4 When the first type frame included in each half superframe is not the last first frame in each half superframe, in each half superframe, The second type frames are arranged continuously before the first part of the symbols, and there are consecutive frames arranged between the first part of the symbols and the second part of the symbols.
  • a third type of frames for transmitting uplink data, M 2b, 1 ⁇ b ⁇ a-1 and b is an integer.
  • each half superframe includes not only the first type frame and the second type frame, but also the third type frame.
  • the first part of the symbols in one first type frame in each half superframe is located at The second type of frames are arranged in a row and Between consecutively arranged third type frames, the second part of the symbols of the first type frame is located After the third type frames are arranged consecutively.
  • the first type of frame is represented as SF
  • the second type of frame is represented as GF
  • the third type of frame is represented as TF
  • the second symbol is represented as GS
  • the third symbol is represented as TS
  • the first switching interval is represented as GAP1
  • the second switching interval is represented as GAP2.
  • the structures of the first half superframe and the second half superframe in a superframe are the same.
  • the first to the second half superframes are respectively The first frames are all second type frames, After the consecutive second type frames are arranged, the first part of the symbols of the first type frame, the consecutive The second part of symbols of the third type frame and the first type frame.
  • Structure 4 is similar to Structure 2 in the above-mentioned Design 1.
  • the sequence numbers of the two first-type frames in one superframe are the frame sequence numbers corresponding to the time domain positions of the first part symbols of the one first-type frame.
  • one first type frame in a half superframe may be the second to the first type frame in the half superframe.
  • the number of second type frames and third type frames included will also change based on the position of the first type frame in the half superframe. Therefore, the structure 4 can be further divided into structures 4-1 to 4-2.
  • a superframe having structure 4-1 includes The superframe having structure 4-2 includes: The second type of frame, 1 first type of frame and 2 third type of frames, ... (and so on), with the structure It includes 1 second type frame, 1 first type frame and A third type frame.
  • the two superframe structures based on the above two designs can be called Class B superframe structures.
  • Each half superframe contains a first-type frame, so that uplink and downlink data transmission are independently scheduled and switched within every 0.5ms, which can support applications with 0.5ms transmission delay.
  • the S first frames within a superframe are all first-type frames, and each first-type frame has the same structure.
  • the superframe has the following structural design:
  • Structure 5 In each first type frame in a superframe, the second part of symbols is located after the P consecutively arranged third symbols in the first part of symbols, that is, the second part of symbols is located after the first part of symbols.
  • the first type frame is represented as SF
  • the second symbol is represented as GS
  • the third symbol is represented as TS
  • the first switching interval is represented as GAP1
  • the second switching interval is represented as GAP2.
  • the first part of the symbols is located before the second part of the symbols, and in the first part of the symbols, the first Q symbols are all first symbols, and the first switching interval GAP1 and P second symbols are arranged in sequence after the Q first symbols.
  • first type frame can only include the first symbol and the second symbol, or only include the first symbol and the third symbol, that is, the first part of the symbols only includes the first switching interval and the second symbol, or the first part of the symbols only includes the first switching interval and the third symbol.
  • the terminal node when the first type frame includes only the first symbol and the second symbol (the first part of the symbols includes only the first switching interval and the second symbol), there is no third symbol in the entire superframe, and the first switching interval and the second switching interval are arranged adjacent to each other to form N first symbols, so that the terminal node can receive the N first symbols within 1ms (structure 1) or within every 0.5ms (structure 3) or every (Structure 5) only receives downlink data, and there is no switching preparation for the terminal node from receiving downlink data to sending uplink data (G to T switching) and from sending uplink data to receiving downlink data (T to G node). At this time, the terminal node does not need to perform switching within the first switching interval and the second switching interval. It can be considered that the terminal node does not perform uplink and downlink switching by default within the first switching interval and the second switching interval.
  • the first type frame only includes the first symbol and the third symbol (the first part of the symbols only includes the first switching interval and the second symbol)
  • the superframe structure is any of the above structures 1 to 4, the second symbol and the third symbol still exist in the entire superframe, so there is a switching preparation for the terminal node from receiving downlink data to sending uplink data (G to T switching) and from sending uplink data to receiving downlink data (T to G node), and the first switching interval and the second switching interval are still valid; if the superframe structure is the above structure 5, there is no second symbol in the entire superframe, so that the terminal node Only uplink data is sent within the first switching interval. At this time, the terminal node does not need to perform switching within the first switching interval and the second switching interval. It can also be considered that the terminal node does not perform uplink and downlink switching by default within the first switching interval and the second switching interval.
  • the management node can determine the CP length and superframe structure of the CP-OFDM symbol used to constitute at least one superframe according to the current communication scenario, taking into account the service type, service delay, and/or service transmission volume, and carry the downlink data to be transmitted on the second symbol of each superframe in at least one superframe to send it to the terminal node through at least one superframe.
  • the terminal node receives at least one superframe in sequence in the time domain, and for each superframe received, parses each symbol in sequence according to the time order of reception to obtain downlink data.
  • the terminal node performs switching preparation from receiving downlink data to sending uplink data within the first switching interval, and performs uplink data transmission on the symbols after the first switching interval until parsing to the second switching interval, performs switching preparation from sending uplink data to receiving downlink data within the first switching interval, and performs downlink data reception on the symbols after the second switching interval, thereby realizing data transmission and reception.
  • the management node sends a superframe with a length of 1ms and the number of first frames being less than 48.
  • the first frame in the superframe includes a first type frame for instructing the terminal node to switch uplink and downlink data.
  • the first type frame can be flexibly provided with at least one first symbol for the terminal node to switch uplink and downlink data, and the coverage can be extended to achieve short-distance (such as within 1 km) communication and long-distance (such as 1 to 18 km) communication.
  • a superframe can have 11 structures as shown in Table 2 below.
  • Different frame ratios correspond to different superframe structures.
  • Frame ratios 0-6 are based on Design 1 above, with a superframe structure containing one SF. Uplink and downlink switching occurs once every 1ms, saving air interface GAP overhead and meeting the requirements of services with long coverage or high throughput.
  • Frame ratios 7-9 are based on Design 2 above, with a superframe structure containing one SF per half superframe. Uplink and downlink switching occurs once every 0.5ms, and data acknowledgment (ACK) feedback is less than 1ms.
  • Frame ratio 10 is based on Design 3 above, with a superframe structure containing eight SFs. Uplink and downlink switching occurs once in the first frame every 125us, meeting the requirements of services with extremely low latency.
  • each SF in the superframe is divided into a first portion of symbols and a second portion of symbols according to GAP1 and GAP2.
  • the GS in the first portion of symbols is arranged consecutively with the GS in the GF
  • the TS in the first portion of symbols is arranged consecutively with the TS in the TF.
  • the positioning of the first and second portion of symbols in the superframe allows the terminal node to complete a set of handovers (including handovers from receiving downlink data to transmitting uplink data and from transmitting uplink data to receiving downlink data) within a superframe, a set of handovers within half a superframe, or a set of handovers within a first frame.
  • the number of handover sets is consistent with the number of first frames contained in a superframe. Compared to the superframe structure in GT1.0, this reduces the number of handovers and improves air interface resource utilization.
  • K can also be 4, 8, etc.
  • BT and SparkLink can refer to each other.
  • BLE Bluetooth Low Energy
  • SLE NearLink and SparkLink Low Energy
  • SLB SparkLink Basic
  • SLP SparkLink Position
  • Both BT and StarFlash offer overlapping piconets, and both utilize the 2.4 GHz frequency band and frequency hopping technology. Their similarities allow for the reuse of some modules, saving chip cost, area, and power consumption. This allows for a high degree of chip resource reuse and rapid iteration across multiple chips.
  • FIG. 8 shows a schematic diagram of a chip architecture provided by an embodiment of the present application. As shown in Figure 8, the design enables resource sharing of the central processing unit (CPU), radio frequency (RF) unit, analog baseband (ABB) unit, or modem, as well as reuse of some modules in the media access control (MAC) layer, thereby saving chip area and reducing chip cost and power consumption.
  • CPU central processing unit
  • RF radio frequency
  • ABB analog baseband
  • MAC media access control
  • Figure 9 shows another chip architecture schematic diagram provided by an embodiment of the present application.
  • the MAC units for BT, SLE, and wireless fidelity (WIFI) are independently implemented, while the RF unit and modem unit for each mode are all shared.
  • WIFI wireless fidelity
  • FIG. 10 another chip architecture diagram provided by an embodiment of the present application is shown.
  • the MAC units of BT, SLE, and WIFI are implemented independently, and the Modems of BT, SLE, and WiFi are also implemented independently, while the RF units of each mode are all shared.
  • Figure 11 shows another chip architecture diagram provided by an embodiment of the present application.
  • the MAC units of BT, SLE, and WIFI are independently implemented, while some modes, such as BT and SLE, share the modem.
  • Other modes, such as WIFI, have their modem independently implemented, while all RF units are shared.
  • SLE chips are available in 14/28/40nm process technology and packaged in chip-size packages (CSP), ball grid array (BGA), and quad flat no-lead (QFN). They feature either internal or external flash memory.
  • CSP chip-size packages
  • BGA ball grid array
  • QFN quad flat no-lead
  • PMU power management unit
  • CMU clock management unit
  • AON active optical network
  • WLAN wireless local area network
  • Bluetooth SLE
  • GNSS global navigation satellite system
  • APP application
  • audio can be integrated onto a single chip, minimizing area while maximizing functionality and improving performance and reliability.
  • the present application provides a chip design method in which the SLE and other subsystems are integrated on a single chip.
  • the subsystems of the chip can be tailored and combined according to different products, and different subsystems are connected via a bus.
  • FIG 12 shows a schematic diagram of a chip module framework provided by an embodiment of the present application.
  • BT and SLE can be separated into different systems, which can then be combined with the WiFi system, GNSS system, always-on system, PMU, CMU, Flash memory, and other components on a single chip.
  • the different subsystems are connected via a bus.
  • Figure 13 shows another schematic diagram of a chip module framework provided by an embodiment of the present application. As shown in Figure 13, for devices that don't require functional modules like WiFi or GNSS but do require audio functionality, to save space and cost, BLE and SLE can be combined into a single subsystem, which is then combined with the App System, Audio System, Always On System, PMU, CMU, and Flash on a single chip. The different subsystems are connected via a bus.
  • Figure 14 shows another schematic diagram of a chip module framework provided by an embodiment of the present application.
  • BLE and SLE can be combined into a single subsystem, which can then be combined with the Always On System, CMU, PMU, Flash, and other components on a single chip, with the different subsystems connected via a bus.
  • the 2.4GHz WiFi frequency band is between 2412 and 2472 MHz, while the BT/BLE/SLE frequency band is between 2402 and 2480 MHz, potentially interfering with each other. While SLE and BT/BLE within the same core can be allocated service time slots through software scheduling, there is no unified scheduling for SLE and BT/BLE/WiFi on different cores.
  • the embodiment of the present application provides a coexistence solution for SLE/BT/BLE/WIFI.
  • the coexistence scenario is divided into different antenna coexistence (using different antennas) and shared antenna coexistence (using the same antenna), and different coexistence strategies are given.
  • the transmit and receive frequencies of SLE and BT/BLE can be kept different (i.e., frequency division multiplexing).
  • the software can handle this based on the frequency hopping sequence (i.e., code division multiplexing), service cycle, and interval (i.e., time division multiplexing).
  • the frequency hopping sequence i.e., code division multiplexing
  • service cycle i.e., service cycle
  • interval i.e., time division multiplexing
  • a software static strategy For coexistence using the same antenna, either a software static strategy or a hardware packet traffic arbitration (PTA) strategy can be used.
  • the advantages of the software static strategy include minimal hardware requirements, minimal software modifications, and no dynamic radio frequency (RF) switching (such as RF recovery).
  • the advantages of the PTA strategy include faster service state switching and finer switching time granularity.
  • Figure 15 shows a schematic diagram of the framework of a software static policy provided in an embodiment of the present application.
  • the software static policy may include: after SLE is started, the host (HOST) is configured through software to notify Wi-Fi to exit the current RF path.
  • Wi-Fi can check the SLE startup flag, and the software can set it to switch from the current RF path to another RF path.
  • the chip needs to support software-set switching.
  • the hardware arbitration time division (PTA) strategy includes: any combination of transmission (TX) and reception (RX) of each party is time-divided, and the PTA module will transmit the occupancy status of the radio frequency channel to each party respectively, using different level signals to indicate that the radio frequency channel is occupied by SLE/BT/BLE/WIFI, and this signal is used to notify the software or hardware to perform the corresponding processing.
  • Different services can also set different PTA priorities, and high-priority services can seize air interface resources.
  • the Star Flash standard defines asynchronous and synchronous data links. Asynchronous links are divided into asynchronous unicast and multicast, and synchronous links are divided into synchronous unicast, multicast, and broadcast.
  • This embodiment of the application designs a set of SLE link selection schemes based on the different real-time data requirements of different products. By connecting different devices in different scenarios, different data links can be used to support the needs of different product application scenarios.
  • FIG 17 is a schematic diagram of a link establishment process according to an embodiment of the present application. As shown in Figure 17, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, an asynchronous unicast link is established between the G node and the T node, and data is transmitted over the established asynchronous unicast link.
  • Figure 18 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 18, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, an asynchronous multicast link is established between the G node and the T node, and data is transmitted over the established asynchronous multicast link.
  • an asynchronous unicast link as shown in Figure 17 or an asynchronous multicast link as shown in Figure 18 can be established for data transmission.
  • Figure 19 is a schematic diagram of another link establishment process provided by an embodiment of the present application.
  • the G node sends a broadcast packet to the G node.
  • the G node sends a scan access request to the T node.
  • the G node and the T node first establish an asynchronous unicast link, and then establish a synchronous unicast link, and data is transmitted over the established synchronous unicast link.
  • Figure 20 is a schematic diagram of another link establishment process provided by an embodiment of the present application.
  • the G node sends a broadcast packet to the G node.
  • the G node sends a scan access request to the T node.
  • the G node and the T node first establish an asynchronous unicast link, then establish a synchronous multicast link, and transmit data over the established synchronous multicast link.
  • an asynchronous unicast link can be established first, and then a synchronous unicast link or a synchronous multicast link can be established for data transmission.
  • Figure 21 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 21, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, an asynchronous unicast link is established between the G node and the T node, and data transmission is performed after synchronization is achieved by adding timestamps to the data packets.
  • Figure 22 is a schematic diagram of another link establishment process provided by an embodiment of the present application. As shown in Figure 22, after the T node sends a broadcast packet to the G node, the G node sends a scan access request to the T node. Furthermore, after the T node sends a scan access response to the G node, an asynchronous multicast link is established between the G node and the T node, and data transmission is performed after synchronization is achieved by adding timestamps to the data packets.
  • asynchronous unicast or asynchronous multicast links can also be established to achieve synchronization by adding timestamps to data packets.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the StarFlash protocol defines four different radio frame types. Each frame format corresponds to different sensitivity, frame length, modulation mode, and synchronization sequence. Physical layer parameter negotiation can be used to select different frame formats in different scenarios to maximize performance benefits. The following provides examples of selecting different frame formats in different scenarios.
  • Figure 24 shows an example of a frame format application in a scenario provided by an embodiment of the present application.
  • frame format 1 For low-latency products (such as keyboards, mice, styluses, toothbrushes, microphones, etc.) or business scenarios (i.e., products or services requiring a latency less than the first duration), frame format 1 is selected for broadcast access. After entering the connected state, frame format 2 is switched through physical layer parameter negotiation.
  • frame format 1 is selected for broadcast access, and after entering the connected state, it is switched to frame format 2 or frame format 3 through physical layer parameter negotiation.
  • FIG26 shows an example of a frame format application in another scenario provided by an embodiment of the present application.
  • GFSK Gaussian frequency shift keying
  • PSK phase shift keying
  • frame format 1 is selected for broadcast access, and no subsequent frame format switching is performed.
  • the frame format one in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 1
  • the frame format two in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 2
  • the frame format three in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 3
  • the frame format four in the embodiment of the present application can also be called the frame format corresponding to the Star Flash Wireless Frame Type 4.
  • the methods and/or steps implemented by the management node may also be implemented by components that can be used for the management node (e.g., a processor, chip, chip system, circuit, logic module, or software); the methods and/or steps implemented by the terminal node may also be implemented by components that can be used for the management node (e.g., a processor, chip, chip system, circuit, logic module, or software).
  • this application also provides a communication device, which is used to implement the various methods in the above method embodiments.
  • the communication device can be the management node in the above method embodiments, or a device including a management node, or a component that can be used for a management node, such as a chip or a chip system.
  • the communication device can be the terminal node in the above method embodiments, or a device including a terminal node, or a component that can be used for a terminal node, such as a chip or a chip system.
  • the communication device in order to implement the above functions, includes hardware structures and/or software modules corresponding to the execution of each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
  • the embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment.
  • each functional module can be divided according to each function, or two or more functions can be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.
  • each superframe in the at least one superframe is 1 millisecond ms
  • each superframe includes S first frames
  • the S first frames include K first type frames
  • the communication apparatus further includes: a module configured to send first indication information and second indication information to the terminal node, wherein the first indication information is configured to indicate the number N of first symbols in the first type frame, and the second indication information is configured to indicate the length T N -T 1 of the second switching interval.
  • the module for generating at least one superframe may be processing module 2801, and the module for sending at least one superframe to a terminal node may be communication module 2802. Similarly, the module for sending the first indication information and the second indication information to a terminal node may also be communication module 2802.
  • the communication module and processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module at the same time; or, the communication module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the processing module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located; or, the processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the communication module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located.
  • the embodiment of the present application does not make specific limitations on this.
  • the above-mentioned communication device 280 is also used to realize the transmission of Bluetooth signals or WiFi signals, and at least one of the Star Flash module, Bluetooth module and WiFi module shares at least one of the RF unit, modem unit, MAC unit and CPU.
  • the communication device 280 is also used to realize the transmission of Bluetooth signals, but does not support the transmission of WiFi signals.
  • the Star Flash module and the Bluetooth module are located in the same subsystem of the communication device 280, and the subsystem and PMU are integrated in the communication device 280.
  • the communication device 280 is also used to realize the transmission of Bluetooth signals or WiFi signals. At least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.
  • the communication device 280 is further used to determine the type of the opposite device and/or the service delay of the opposite device, and determine the link corresponding to the opposite device and/or the service for data transmission according to the link selection strategy.
  • the communication device 280 is also used to: determine the type of the opposite device and/or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.
  • the link selection strategy includes: when the service delay is greater than a first value, establishing an asynchronous unicast link or an asynchronous multicast link before performing data transmission; or, when the service delay is less than the first value and greater than a second value, establishing an asynchronous unicast link or an asynchronous multicast link, achieving synchronization by adding timestamps to data packets, and then performing data transmission; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link before performing data transmission.
  • the communication device 280 is further configured to determine the type of the peer device and/or the service latency of the peer device, and determine, based on a frame format selection strategy, a frame format type corresponding to the type of the peer device and/or the service type of the peer device.
  • the frame format types include Starflash Wireless Frame Type 1, Starflash Wireless Frame Type 2, Starflash Wireless Frame Type 3, or Starflash Wireless Frame Type 4.
  • the communication device 280 is also used to: determine the type of the opposite device and/or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.
  • the above-mentioned frame format selection strategy includes: when the service delay requirement of the opposite device is less than the first duration, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or, when the service delay requirement of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation after entering the connection state; or, when the type of the opposite device is a device that only supports Star Flash wireless frame type 1, or a device with a maximum transmission power greater than the first power threshold, selecting Star Flash wireless frame type 1 for broadcast access; or, when the service type of the opposite device is IOT ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, selecting Star Flash wireless frame type 4 for broadcast and connection, or, when the distance between the opposite device and the communication device is less than or
  • the present application further provides a communication device 290, which is used to implement the transmission of star flash signals.
  • the communication device 290 may include: a module for receiving at least one superframe, and a module for receiving downlink data and/or sending uplink data according to at least one superframe.
  • the length of each superframe in the at least one superframe is 1 millisecond
  • each superframe includes S first frames
  • the S first frames include first type frames
  • a is a positive integer and 1 ⁇ a ⁇ 24
  • N ⁇ X and N and X are positive integers
  • X is the number of symbols contained in each first frame.
  • each superframe includes S first frames
  • the S first frames include K first type frames
  • the communication device further includes: a module configured to receive first indication information and second indication information from the management node, wherein the first indication information is configured to indicate the number N of first symbols in the first type frame, and the second indication information is configured to indicate the length T N -T 1 of the second switching interval.
  • the communication module and processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module at the same time; or, the communication module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the processing module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located; or, the processing module in the embodiment of the present application can be deployed in the Star Flash module, Bluetooth module or WiFi module, and the communication module in the embodiment of the present application can be deployed in other modules of the module where the processing module is located.
  • the embodiment of the present application does not make specific limitations on this.
  • the communication device 290 is also used to transmit Bluetooth signals or Wi-Fi signals. At least one of the StarFlash module, the Bluetooth module, and the Wi-Fi module shares at least one of the RF unit, the modem unit, the MAC unit, and the CPU. In another possible implementation, the communication device 290 is also used to transmit Bluetooth signals but does not support the transmission of Wi-Fi signals. The StarFlash module and the Bluetooth module are located in the same subsystem of the communication device 290, and this subsystem and the PMU are integrated into the communication device 290.
  • the communication device 290 is also used to realize the transmission of Bluetooth signals or WiFi signals. At least one of the Bluetooth modules or WiFi modules coexists and communicates with the Star Flash module through different antennas, and the coexistence strategy is channel avoidance.
  • the communication device 290 is further used to determine the type of the opposite device and/or the service delay of the opposite device, and determine the link corresponding to the opposite device and/or the service for data transmission according to the link selection strategy.
  • the communication device 290 is also used to: determine the type of the opposite device and/or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.
  • the link selection strategy includes: when the service delay is greater than a first value, establishing an asynchronous unicast link or an asynchronous multicast link before performing data transmission; or, when the service delay is less than the first value and greater than a second value, establishing an asynchronous unicast link or an asynchronous multicast link, achieving synchronization by adding timestamps to data packets, and then performing data transmission; or, when the service delay is less than the second value, first establishing an asynchronous unicast link, and then establishing a synchronous unicast link or a synchronous multicast link before performing data transmission.
  • the communication device 290 when the communication device 290 is a non-audio device, the communication device 290 is further configured to: transmit data via an asynchronous unicast or asynchronous multicast link.
  • the communication device 290 is also used to: determine the type of the opposite device and/or the service delay of the opposite device, and determine the frame format type corresponding to the type of the opposite device and/or the service type of the opposite device according to the frame format selection strategy; wherein the frame format type includes Star Flash Wireless Frame Type 1, Star Flash Wireless Frame Type 2, Star Flash Wireless Frame Type 3 or Star Flash Wireless Frame Type 4.
  • the communication device 290 is also used to: determine the type of the opposite device and/or the service delay of the opposite device, including: determining the type of the opposite device, the type of the opposite device includes an audio device type or a non-audio device type; when the type of the opposite device is an audio device type, determining the service delay of the opposite device.
  • the above-mentioned frame format selection strategy includes: when the service delay requirement of the opposite device is less than the first duration, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 through physical layer parameter negotiation after the connection state; or, when the service delay requirement of the opposite device is less than the first duration and the service anti-interference capability requirement is greater than the set threshold, selecting Star Flash wireless frame type 1 for broadcast access, and switching to Star Flash wireless frame type 2 or Star Flash wireless frame type 3 through physical layer parameter negotiation after entering the connection state; or, when the type of the opposite device is a device that only supports Star Flash wireless frame type 1, or a device with a maximum transmission power greater than the first power threshold, selecting Star Flash wireless frame type 1 for broadcast access; or, when the service type of the opposite device is IOT ultra-long-distance coverage service, when the distance between the opposite device and the communication device is greater than the first threshold, selecting Star Flash wireless frame type 4 for broadcast and connection, or, when the distance between the opposite device and the communication device is less than or
  • the communication device 290 when the communication device 290 is a non-audio device, the communication device 290 is also used to: select Star Flash wireless frame type 1 for broadcast access, and after entering the connection state, switch to Star Flash wireless frame type 2 for data transmission through physical layer parameter negotiation.
  • An embodiment of the present application provides a schematic structural diagram of a communication device 300.
  • the communication device 300 may include a processor 3001, a bus 3002, a communication interface 3003, and a memory 3004.
  • the processor 3001, the memory 3004, and the communication interface 3003 communicate with each other via the bus 3002.
  • the communication device 300 may be the aforementioned management node or terminal node. It should be understood that this application does not limit the number of processors and memories in the communication device 300.
  • Bus 3002 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. Buses can be categorized as address buses, data buses, control buses, and the like. For ease of illustration, FIG30 illustrates a single bus line, but this does not imply a single bus or type of bus. Bus 3002 may include a path for transmitting information between the various components of communication device 300 (e.g., memory 3004, processor 3001, and communication interface 3003).
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • Processor 3001 may include any one or more processors such as a CPU, a graphics processing unit (GPU), a microprocessor (MP) or a digital signal processor (DSP).
  • processors such as a CPU, a graphics processing unit (GPU), a microprocessor (MP) or a digital signal processor (DSP).
  • GPU graphics processing unit
  • MP microprocessor
  • DSP digital signal processor
  • the memory 3004 may include a volatile memory, such as a random access memory (RAM).
  • the processor 3001 may also include a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD), or a solid state drive (SSD).
  • ROM read-only memory
  • HDD hard disk drive
  • SSD solid state drive
  • the communication interface 3003 uses a transceiver module such as, but not limited to, a network interface card or a transceiver to implement communication between the communication device 300 and other devices or a communication network.
  • a transceiver module such as, but not limited to, a network interface card or a transceiver to implement communication between the communication device 300 and other devices or a communication network.
  • the memory 3004 stores executable program codes, and the processor 3001 executes the executable program codes to respectively implement the functions of the management node or the terminal node in the aforementioned method embodiment. That is, the memory 3004 stores instructions for executing the aforementioned communication method.
  • an embodiment of the present application further provides a computer program product comprising instructions, including computer program code, which, when the computer program code runs on a communication device, enables the communication device to execute the method described in any of the above embodiments.
  • embodiments of the present application further provide a computer-readable storage medium storing a computer program or instruction that, when executed on a communication device, enables the communication device to execute the method described in any of the above embodiments.
  • all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof.
  • all or part of the embodiments can be implemented in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that can be integrated with one or more media. Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid state disks (SSDs)).
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are merely schematic.
  • the division of the units is merely a logical function division.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or an access network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a random access memory RAM, a magnetic disk, or an optical disk.

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

Abstract

Des modes de réalisation de la présente demande se rapportent au domaine des communications, et concernent un procédé et un appareil de communication, qui peuvent satisfaire les exigences de communication d'un réseau GT de prochaine génération au moyen de la transmission d'une supertrame apte à étendre la couverture. Le procédé consiste : à générer et à transmettre au moins une supertrame à un nœud terminal. La longueur de chaque supertrame parmi l'au moins une supertrame est de 1 milliseconde, chaque supertrame comprend S premières trames, les S premières trames comprennent une trame de premier type, et la trame de premier type comprend N premiers symboles utilisés pour une commutation de transmission/réception de données de liaison montante/liaison descendante par le nœud terminal. Ici, S = 2a, a est un nombre entier positif, 1 < a < 24, N ≤ X, N et X sont tous deux des nombres entiers positifs, et X est le nombre de symboles compris dans chaque première trame.
PCT/CN2024/144397 2024-03-29 2024-12-31 Procédé et appareil de communication Pending WO2025200684A1 (fr)

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CN202410391106.2 2024-03-29

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Publication number Priority date Publication date Assignee Title
US20210144723A1 (en) * 2017-06-15 2021-05-13 Sharp Kabushiki Kaisha Terminal apparatus, base station apparatus, communication method, and integrated circuit
CN113811005A (zh) * 2020-06-12 2021-12-17 联发科技（新加坡）私人有限公司 用于多（子）系统共享帧配置的方法及装置
CN114374932A (zh) * 2020-10-14 2022-04-19 北京紫光展锐通信技术有限公司 无线通信方法与装置、终端和管理设备
CN117178510A (zh) * 2021-03-31 2023-12-05 华为技术有限公司 一种资源调度方法、通信装置与终端设备
WO2023245518A1 (fr) * 2022-06-22 2023-12-28 华为技术有限公司 Procédé et appareil de télémétrie
CN117715192A (zh) * 2020-07-17 2024-03-15 华为技术有限公司 一种数据传输方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210144723A1 (en) * 2017-06-15 2021-05-13 Sharp Kabushiki Kaisha Terminal apparatus, base station apparatus, communication method, and integrated circuit
CN113811005A (zh) * 2020-06-12 2021-12-17 联发科技（新加坡）私人有限公司 用于多（子）系统共享帧配置的方法及装置
CN117715192A (zh) * 2020-07-17 2024-03-15 华为技术有限公司 一种数据传输方法及装置
CN114374932A (zh) * 2020-10-14 2022-04-19 北京紫光展锐通信技术有限公司 无线通信方法与装置、终端和管理设备
CN117178510A (zh) * 2021-03-31 2023-12-05 华为技术有限公司 一种资源调度方法、通信装置与终端设备
WO2023245518A1 (fr) * 2022-06-22 2023-12-28 华为技术有限公司 Procédé et appareil de télémétrie

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