WO2023272425A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2023272425A1
WO2023272425A1 PCT/CN2021/102682 CN2021102682W WO2023272425A1 WO 2023272425 A1 WO2023272425 A1 WO 2023272425A1 CN 2021102682 W CN2021102682 W CN 2021102682W WO 2023272425 A1 WO2023272425 A1 WO 2023272425A1
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WO
WIPO (PCT)
Prior art keywords
node
data packet
feedback information
time period
group
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PCT/CN2021/102682
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English (en)
French (fr)
Inventor
刘航
王键
Original Assignee
华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2021/102682 priority Critical patent/WO2023272425A1/zh
Priority to CN202180099076.2A priority patent/CN117461273A/zh
Publication of WO2023272425A1 publication Critical patent/WO2023272425A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication, in particular to the field of wireless communication, and in particular to a communication method and a communication device.
  • the slave node cannot actively initiate communication and needs to be initiated by the master node, so when the communication requirements from the master node to the slave node When the communication needs of nodes to master nodes are very different, the overall resource utilization will be too low.
  • the master node is the battery management unit
  • the slave nodes are many battery units.
  • the number of battery management units is much smaller than the number of battery units, and the battery units need to report the battery status to the battery management very frequently. unit, but the battery management unit needs to send relatively little data to the battery unit.
  • the slave node needs the master node to initiate communication first, so in order to meet the trigger requirements of the slave node, the master node needs to continuously send empty packets to the slave node, as well as the time consumption of each triggered sending and receiving conversion, etc., which is The overall resource utilization rate is too low.
  • the present application provides a communication method and a communication device, which can improve transmission performance.
  • a communication method is provided.
  • the method may be executed by a master node, such as a mobile terminal, a wearable device, or a vehicle-mounted device; or, the method may also be executed by a chip or an integrated circuit configured in the master node, which is not limited in this application.
  • the method includes: receiving at least one first data packet from a first group within a first time period, the first group including a plurality of second nodes; generating first feedback information, the first feedback information is corresponding to the first time Segment, feedback information for any second node in the first group; sending first feedback information.
  • the method of group feedback is mainly adopted, that is, multiple second nodes in a group share one feedback information, so as to effectively improve the transmission efficiency.
  • the first feedback information may be sent to the first group or each second node in the first group by means of unicast, multicast or broadcast, and the first feedback information may be sent by means of multicast or broadcast way can make the transmission more efficient.
  • the first feedback information is carried by 1 bit. It is equivalent to that all second nodes in the first group share the 1-bit feedback information, which can further improve transmission efficiency.
  • the first time period is a periodic time interval. That is, the time period for the first group to send data packets is periodic, and the time period for the first node to receive data packets is also periodic, and the two correspond.
  • the above communication method further includes: sending configuration information to each of the plurality of second nodes, where the configuration information is used to indicate the second time period, The second time period is used to carry the first feedback information.
  • the configuration information can also be used to indicate that the second node belongs to the first group, that is, to allocate resources that the second node can use in the first group, so that the second node can be in the first group Send and receive data or information on the time resources of the group.
  • the following manner may be used to generate the first feedback information: the first feedback information is generated according to the data identification information carried in at least one first data packet.
  • the first feedback information is used to indicate that the reception is correct; or if there is at least one data packet in the at least one first data packet
  • the packet reception fails, and the first feedback information is used to indicate a reception error. That is, receiving correctly indicates that all first data packets are received successfully, and receiving incorrectly indicates that at least one first data packet fails to be received.
  • reception success and reception failure are for each first data packet, and the reception correctness and reception error are for all first data packets.
  • the successful reception may be that the first data packet is correctly decoded, and the first data packet is the data packet desired by the first node, and the reception failure may be that the first data packet is decoded incorrectly, or the first data packet is not received The first data packet, or although the first data packet is correctly decoded, the first data packet is not the data packet that the first node intended.
  • serial number serial number, SN
  • expected serial number next expected serial number, NESN
  • the length of both SN and NESN is 1 bit, and the value range is 0 or 1.
  • the first node maintains (maintains or changes) the value of NESN mainly according to the reception situation
  • the second node maintains (maintains or changes) the value of SN mainly according to the reception situation fed back by the first node.
  • the successful reception of the first data packet is: the first data packet is correctly decoded, and the sequence number SN of the first data packet is equal to the expected sequence number NESN of the first node.
  • the failure to receive the first data packet is: the first data packet is correctly decoded, and the sequence number SN of the first data packet is not equal to the expected sequence number NESN of the first node ; or the first data packet is decoded incorrectly; or the first data packet is not received.
  • the first node may also update the value of NESN to inform the second node of the data packet it needs to send next time.
  • the above communication method further includes: if the first feedback information is used to indicate that the reception is correct, changing the value of NESN; or if the first feedback information is used to indicate a reception error, Leave the value of NESN unchanged.
  • the above communication method further includes: if the first feedback information indicates a reception error, receiving at least one first data packet from the first group again; or if the first The group feedback information indicates that the reception is correct, at least one second data packet from the first group is received, wherein the second data packet is different from the first data packet.
  • the payload of the second data packet is different from the payload of the first data packet
  • the data identifier of the second data packet is different from the data identifier of the first data packet
  • another example may be the SN and The SNs of the first data packets are different.
  • the above communication method further includes: sending second information to the second node, the second information is used to indicate that the second node withdraws from the first group or that the second node belongs to The second group or the second nodes work in a second mode different from the first mode, and the first mode is the working mode of the first group. That is to say, the first node sends second information to a certain second node in the first group to indicate that it no longer adopts the working mode in the first group.
  • the exit mechanism is mainly implemented, so that the second node that is not suitable for the group can be kicked out.
  • the above method may also include a joining mechanism, which allows slave nodes that do not belong to the first group, such as the third node, to join the first group.
  • the way of joining can refer to the above configuration information and the second information , that is, the above configuration information can be sent to the third node, the configuration information is used to indicate that the third node belongs to the first group, or is used to indicate the available time resources of the third node in the first group, such as the The third time period, the second time period, etc.; or the second information may be sent to the third node, where the second information is used to indicate the third time period of the third node.
  • the above communication method further includes: sending third information to the second node, the third information is used to indicate a third time period, and the third time period is used for the second node
  • the node sends the first data packet to the first node, and the third time period is included in the first time period. That is to say, the first node sends third information to a certain second node in the first group to instruct it to specifically use that period of time in the first time period of the first group to send the first data packet .
  • a communication method is provided.
  • the method may be executed by a slave node, such as a mobile terminal, a wearable device, or a vehicle-mounted device; or, the method may also be executed by a chip or an integrated circuit configured in the slave node, which is not limited in this application.
  • the method includes: sending a first data packet within a third time period; receiving first feedback information, the first feedback information is for any second node in the first group to which the second node belongs corresponding to the first time period feedback information, the third time period is included in the first time period.
  • the method of group feedback is mainly adopted, that is, multiple second nodes in a group share one feedback information, so as to effectively improve the transmission efficiency.
  • the method of group feedback is mainly adopted, that is, multiple second nodes in a group share one piece of feedback information, so as to effectively improve the transmission efficiency.
  • the first feedback information is carried by 1 bit.
  • the first time period is a periodic time interval.
  • the communication method further includes: receiving configuration information, where the configuration information is used to indicate a second time period, and the second time period is used to carry the first feedback information.
  • the configuration information may also be used to indicate that the second node belongs to the first group.
  • the first data packet carries data identification information
  • the first feedback information is generated according to the data identification information
  • the above communication method further includes: if the first feedback information indicates a reception error, sending the first data packet again; or if the first feedback information indicates that the reception is correct, sending the first data packet Two data packets, wherein the second data packet is different from the first data packet.
  • the first feedback information includes the expected sequence number NESN, and when the NESN is equal to the sequence number of the first data packet, the first feedback information indicates a reception error; when the NESN and When the SNs are not equal, the first feedback information indicates that the reception is correct.
  • the above communication method further includes: if the first feedback information indicates a reception error, keeping the value of the SN maintained by the second node unchanged; or if the first feedback information indicates If the reception is correct, change the value of SN maintained by the second node.
  • the above communication method further includes: receiving second information, the second information is used to indicate that the second node exits the first group or that the second node belongs to the second group Or the second node works in a second mode different from the first mode, and the first mode is the working mode of the first group.
  • the foregoing communication method further includes: receiving third information, where the third information is used to indicate a third time period.
  • a communication device configured to execute the method provided in the first aspect above.
  • the communication device may include a module for executing the method provided in the first aspect.
  • a communication device is provided, and the communication device is configured to execute the method provided in the second aspect above.
  • the communications device may include a module for executing the method provided by the second aspect.
  • a communication device including at least one processor.
  • the at least one processor is coupled with at least one memory, and may be used to execute instructions in the memory, so as to implement the method in the above first aspect or any possible implementation manner of the first aspect.
  • the communication device further includes at least one memory.
  • the communication device further includes a communication interface, at least one processor is coupled to the communication interface, and the communication interface is used for inputting and/or outputting information.
  • the information includes at least one of instructions and data.
  • the communication device is a first node (master node), such as a mobile terminal.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system.
  • the communication interface may be an input/output interface, may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system, etc.
  • the processor may also be embodied as a processing circuit or logic circuit.
  • the communication device is a chip or a chip system configured in the first node (master node).
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device including at least one processor.
  • the at least one processor is coupled with the memory, and can be used to execute instructions in the memory, so as to implement the method in the above second aspect or any possible implementation manner of the second aspect.
  • the communication device further includes at least one memory.
  • the communication device further includes a communication interface, at least one processor is coupled to the communication interface, and the communication interface is used for inputting and/or outputting information.
  • the communication device is a second node (slave node), such as a mobile terminal.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system.
  • the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, pins or related circuits on the chip or the chip system.
  • the processor may also be embodied as a processing circuit or logic circuit.
  • the communication device is a chip or a chip system configured in the second node (slave node).
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a chip including: at least one processor and a communication interface.
  • the communication interface is used to receive signals input to the chip or to output signals from the chip, and the processor communicates with the communication interface and executes code instructions through logic circuits or to implement the first aspect or the first aspect above.
  • a communication device including: at least one memory for storing computer instructions; at least one processor for executing the computer instructions stored in the at least one memory, so that the communication device executes the above-mentioned first One aspect or the method in any possible implementation manner of the first aspect, or causing the communication device to execute the second aspect or the method in any possible implementation manner of the second aspect.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, the communication device realizes the first aspect or any possible implementation manner of the first aspect method in .
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, the communication device realizes the second aspect or any possible implementation manner of the second aspect method in .
  • a computer program product includes: a computer program (also referred to as code, or an instruction), when the computer program is executed, the computer executes the above-mentioned first aspect or the first aspect A method in any of the possible implementations.
  • a computer program also referred to as code, or an instruction
  • a computer program product includes: a computer program (also referred to as code, or an instruction), when the computer program is executed, the computer executes the above-mentioned second aspect or the second aspect A method in any of the possible implementations.
  • a computer program also referred to as code, or an instruction
  • a thirteenth aspect provides a terminal device, including the communication device of the third aspect or the fourth aspect.
  • the terminal device may be a terminal device in fields such as a smart terminal, smart home, smart transportation, or smart manufacturing. Specifically, it can be vehicles, drones, smart screens, battery management systems, mobile phones, earphones, vehicle-mounted equipment and other equipment.
  • a communication system including the aforementioned first node and second node.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • Fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the relationship between time periods in the embodiment of the present application.
  • Fig. 4 is a schematic flowchart of another communication method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another communication method according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another communication method according to an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of another communication device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system, LTE frequency Division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), short distance communication system (not limited to Bluetooth, WIFI and other traditional short long-distance communication system, or other short-distance communication systems in the future), etc.
  • 5G fifth generation
  • new radio new radio
  • NR new radio
  • long term evolution long term evolution, LTE
  • LTE frequency Division duplex frequency division duplex, FDD
  • LTE time division duplex time division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunications system
  • short distance communication system not limited to Bluetooth, WIFI and other traditional short long-distance communication system, or other short-d
  • V2X vehicle to vehicle
  • V2V vehicle to vehicle
  • V2I vehicle to infrastructure
  • V2P vehicle to pedestrian
  • V2N vehicle to network
  • the network device may be an evolved node B (evolved node B, eNB), a radio network controller (radio network controller, RNC), a node B (node B, NB), a base station controller (base station controller, BSC) ), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WIFI) system Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G, such as, NR, a gNB in the system, or, a transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes
  • the network device may also be a base station in a 5.5G or 6G system, or may also be a device with a management function (such as a master node, etc.) in a current or future short-distance communication system. It should be noted that the network device in this application may also be a terminal device.
  • terminal equipment may also be referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless Communication Device, User Agent, or User Device.
  • user equipment user equipment
  • UE user equipment
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless Communication Device, User Agent, or User Device.
  • the terminal device in the embodiment of the present application may be a vehicle, a vehicle-mounted device, a non-vehicle device, a handheld terminal (such as a mobile phone or a car key, etc.), a tablet computer (Pad), a computer with a wireless transceiver function, a Wearable devices (such as virtual reality (virtual reality, VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment or headsets, etc.), wireless terminals in industrial control (industrial control), self-driving (self driving) Wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, smart home Wireless terminals in (smart home) (eg, smart home) and so on.
  • VR virtual reality
  • AR augmented reality
  • Wireless terminals in remote medical wireless terminals in smart grid
  • wireless terminals in transportation safety wireless terminals in smart city, smart home Wireless terminals in (smart home) (eg, smart home) and so on.
  • the terminal device may be any type of terminal. Further, the terminal device may be an existing or future terminal device (such as a slave node) with a short-distance communication function, for example, it may be a terminal device supporting a Bluetooth or WiFi communication function.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • the communication system includes at least one first node and at least one first group, and the first group includes a plurality of second nodes, in which the second node #1 to the second node #N are respectively used where N is an integer greater than or equal to 2.
  • the plurality of second nodes in the first group can each communicate with the first node.
  • the first node and the second node may be the aforementioned network devices or terminal devices, the first node is a master node, and the second node is a slave node.
  • FIG. 1 some specific examples of different kinds of first nodes and second nodes are given in FIG. 1 .
  • it can be a computer, mobile phone, tablet computer or vehicle-mounted terminal, etc., or it can be a host, server, etc., as long as it has any one or more of the above-mentioned network equipment or terminal equipment, but it should be understood that this is only a specific
  • the first node is a battery management unit
  • the second node is a slave node
  • the master node and the slave node can be short-distance communication such as Bluetooth or other communication methods.
  • the master node is responsible for managing the slave nodes, and can allocate or schedule communication resources for the slave nodes.
  • Fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application. Each step shown in FIG. 2 will be introduced below.
  • #M is any second node in the first group
  • M is a positive integer, which is used to indicate its number among multiple second nodes in the first group.
  • N is a positive integer greater than or equal to 2
  • M is a positive integer less than or equal to N.
  • M may also be an integer greater than or equal to 0 and less than or equal to N-1.
  • a first node receives at least one first data packet from a first group within a first time period.
  • the first node receives at least one first data packet from a first group including a plurality of second nodes within a first time period.
  • “receiving” here is the process of receiving, not the result of receiving, it can be understood as trying to receive, and can include any one or more of the following situations: the first data packet is not received, the first data packet is received but Decoding failed, first packet received and decoded successfully. That is to say, in this process, the first node may receive the first data packet of each second node in the first group, or may only receive the first data packet of some of the second nodes, and receive The first received packet may or may not be decoded successfully.
  • the first data packet is only applicable to the data packets sent by the second node within the first time period, but it does not mean that the content of the data packets sent by multiple second nodes is the same, that is, multiple The content of the first data packet sent by the second node is not limited.
  • the first time period may be a periodic time interval, that is, the time period during which the first group sends data packets is periodic, and the time period during which the first node receives data packets is also periodic. correspond to.
  • the data packets of all the second nodes of the first group are received within the first time period, while for the second node side, the time period for sending data packets of a single second node It is only a part of the above-mentioned first time period, but not the whole of the above-mentioned first time period, so the third time period is used here to distinguish, and the third time period is included in the first time period.
  • the third time period may be configured by the first node for the second node.
  • the first node sends configuration information for the second node, and the configuration information may be used to indicate resources in the configured time domain, for example, the start time and/or end time of the third time period, and the second node may The first data packet is sent to the first node during the indicated third time period.
  • the configuration information may include both the start time and the end time of the third time period, and at this time the configuration information may clearly indicate the third time period.
  • the third time period can be determined only by configuring the starting moment of the third time period.
  • the third time period may correspond to a sending time window.
  • the third time period may be periodic.
  • the first node generates first feedback information.
  • the first feedback information is feedback information for any second node in the first group corresponding to the first time period, that is, the first feedback information is for all second nodes in the first group.
  • the first feedback information may be carried by 1 bit, which means that all second nodes in the first group share the 1-bit feedback information, which may further improve transmission efficiency.
  • the first feedback information may be generated according to the data identification information carried in at least one first data packet.
  • the first feedback information is used to indicate correct reception or wrong reception. For example, if at least one first data packet is all received successfully, the first feedback information is used to indicate that the reception is correct; or
  • the first feedback information is used to indicate a reception error. That is, receiving correctly indicates that all first data packets are received successfully, and receiving incorrectly indicates that at least one first data packet fails to be received.
  • reception success and reception failure are for each first data packet, and the reception correctness and reception error are for all first data packets.
  • the successful reception may be that the first data packet is correctly decoded, and the first data packet is the data packet desired by the first node, and the reception failure may be that the first data packet is decoded incorrectly, or the first data packet is not received The first data packet, or although the first data packet is correctly decoded, the first data packet is not the data packet that the first node intended.
  • serial number serial number, SN
  • SN serial number
  • NESN next expected serial number
  • Successful reception may mean that the first data packet is correctly decoded, and the sequence number SN (from the second node) of the first data packet is equal to the expected sequence number NESN of the first node.
  • the receiving failure may be that the first data packet is correctly decoded, and the sequence number SN of the first data packet is not equal to the expected sequence number NESN of the first node; or the first data packet is decoded incorrectly; or the first data packet is not received.
  • the first node may also update the value of NESN to inform the second node of the data packet it needs to send next time. That is, if the first feedback information is used to indicate that the reception is correct, change the value of NESN; or if the first feedback information is used to indicate that the reception is wrong, keep the value of NESN unchanged.
  • the NESN refers to the NESN that the first node informs the second node through the first feedback information.
  • the NESN is included in the first feedback information.
  • the NESN is included in a header of a data packet sent by the first node to the second node.
  • the length of SN and NESN can both be 1 bit, and the value range is 0 or 1.
  • the first node maintains (maintains or changes) the value of the NESN mainly according to the reception situation.
  • the NESN is the NESN maintained by the first node.
  • the application does not limit the specific maintenance method.
  • the second node maintains (maintains or changes) the value of SN mainly according to the reception situation fed back by the first node, where the SN is the SN maintained by the second node.
  • it may be local storage or remote storage, and the present application does not limit the specific maintenance method. That is, the first node and the second node need to maintain NESN and SN respectively.
  • the first node determines the reception status through the SN carried in the data packet sent by the second node and the NESN stored locally by the first node.
  • the second node uses the first The NESN indicated by the first feedback information sent by the node and the SN maintained by the second node are used to determine whether to send the first data packet or send the second data packet again.
  • the maintenance of NESN by the first node is for the first node to determine the data packet that it wants to receive next time
  • the SN maintained by the second node is for the second node to distinguish between the data packets that have been sent and the data packets that are about to be sent
  • the NESN indicated by the first feedback information is for the first node to inform the second node of the reception situation
  • the SN carried in the first data packet is for the second node to inform the first node which data packet is sent.
  • the first feedback information may be NESN, and in some other implementation manners, the first feedback information may be physical layer acknowledgment feedback (acknowledgment, ACK) or physical layer non-acknowledgement feedback (negative acknowledgment, NACK) , for example, 1 indicates ACK, and 0 indicates NACK.
  • ACK physical layer acknowledgment feedback
  • NACK physical layer non-acknowledgement feedback
  • the physical layer feedback information such as physical layer acknowledgment feedback or physical layer non-acknowledgement feedback
  • the physical layer information of the device is carried by the physical layer information of the device.
  • the manner of carrying the feedback information at the physical layer is different from that in some communication systems in the prior art, which carries feedback information through other layers above the physical layer (for example, in the Bluetooth system, through a protocol layer higher than the physical layer such as the link layer).
  • the feedback information carried by the physical layer information can quickly provide an indication of whether the reception is successful, and improve communication efficiency.
  • the first node sends first feedback information to the first group.
  • the first feedback information may be sent to the first group or to each second node in the first group in a unicast, multicast or broadcast manner.
  • the method shown in FIG. 2 mainly adopts a group feedback method, that is, multiple second nodes in a group share one feedback information, thereby effectively improving transmission efficiency.
  • the method shown in FIG. 2 may also include one or more of the following steps.
  • the first node sends configuration information, where the configuration information is used to indicate the second time period.
  • the above-mentioned first feedback information can be sent within a second time period
  • the second time period can be understood as a time period for carrying the first feedback information, that is, the second node receives the above-mentioned first feedback information within the second time period.
  • the first node sends the first feedback information within a second time period.
  • the second time period may be configured by the first node for the second node, that is, step 204 may be performed to implement it.
  • the configuration information may be used to indicate that the second node belongs to the first group, that is, to allocate resources that the second node can use in the first group, so that the second node can be in Send and receive data or information on the time resources of the first group.
  • the configuration information may indirectly indicate the second time period by indicating that the second node belongs to the first group, or the configuration information may indicate the second time period by indicating the second time period The second node belongs to the first group.
  • the configuration information may also be used to indicate that the second time period and that the second node belongs to the first group.
  • step 204 does not limit the sequence relationship between step 204 and step 201 .
  • step 204 may be before step 201 .
  • the first node receives the first data packet again or receives the second data packet.
  • the first node performs the following process in step 205:
  • the first feedback information indicates a reception error, receiving at least one first data packet from the first group again;
  • At least one second data packet from the first group is received, wherein the second data packet is different from the first data packet.
  • the payload of the second data packet is different from the payload of the first data packet
  • the data identifier of the second data packet is different from the data identifier of the first data packet
  • another example may be the SN and The SNs of the first data packets are different.
  • the second node performs the following process in step 205:
  • a second data packet is sent, wherein the second data packet is different from the first data packet.
  • the method may further include: 206.
  • the first node sends the second information to the second node.
  • the second information is used to indicate that the second node exits the first group or the second node belongs to the second group or the second node works in a second mode different from the first mode, the first The mode is the working mode of the first group. That is to say, the first node sends second information to a certain second node in the first group to indicate that it no longer adopts the working mode in the first group.
  • the main differences between the first mode and the second mode are as follows:
  • the second node After the second node finishes sending data (not necessarily occupying all the time resources of the second node), after a preset time interval, the second node starts to receive feedback information.
  • the second node In the first mode, the second node only receives feedback information during the second time period. Even if it finishes sending data very early, it still needs to wait for the second time period to receive corresponding feedback information.
  • Step 206 mainly implements an exit mechanism, instructing the corresponding node to exit the current group it is in, or to exit the current working mode of the corresponding node.
  • the method shown in FIG. 2 may also include a joining mechanism, which allows slave nodes that do not belong to the first group, such as the third node, to join the first group.
  • a joining mechanism which allows slave nodes that do not belong to the first group, such as the third node, to join the first group.
  • indication information may be sent to the third node, where the indication information is used to indicate that the third node belongs to the first group, or is used to indicate the available time resources of the third node in the first group.
  • the first node sends third information to the second node.
  • the third information is used to indicate a third time period
  • the third time period is used for the second node to send the first data packet to the first node
  • the third time period is included in the first time period. That is to say, the first node sends third information to a certain second node in the first group to instruct it to specifically use that period of time in the first time period of the first group to send the first data packet .
  • step 204 does not limit the sequence relationship between step 204 and step 201 .
  • step 204 may be before step 201 .
  • this application mainly focuses on the communication resources in the time dimension, and does not require the allocation of communication resources in the frequency domain.
  • a frequency hopping manner may be used in the frequency domain.
  • the so-called frequency-hopping technology frequency-hopping spread spectrum; FHSS
  • FHSS frequency-hopping spread spectrum
  • Those skilled in the art can use the existing In the frequency hopping mode, the allocation of time domain resources in the embodiment of the present application is applied to realize the allocation of communication resources in the frequency domain.
  • FIG. 3 is a schematic diagram of the relationship between time periods in the embodiment of the present application.
  • each box represents a period of time resources
  • the time resources of the first node (master node) are represented by the "master node” box
  • the time resources of the 3 second nodes (slave nodes) are respectively represented by "slave node# 1", "Slave Node #2” and “Slave Node #3” box representations.
  • FIG. 3 only provides an example in which the first group includes three second nodes, and there is no limitation thereto.
  • the gap between the time resources of the master and slave nodes is called the preset time interval, which is mainly used for sending and receiving conversion.
  • the preset time interval may be stipulated in an agreement, or determined through negotiation between the sending and receiving ends. This application is not limited to this.
  • the preset time interval may also be referred to as inter frame space (inter frame space) time, or inter packet space (inter packet space) time, or conversion time interval (considering that it is mainly used for sending and receiving conversion).
  • the node (the first node or the second node) may start to receive or send data after the preset time interval.
  • the node (the first node or the second node) starts receiving or sending on the first integer time slot after the preset time interval, so as to ensure that the sending and receiving ends (that is, the first node) side and the second node side) are time aligned.
  • the first time period is the time period for the total sending of data packets from node #1 to slave node #3, and is also the time period for the master node to receive the data packets of the first group
  • the third time period is a time period during which a certain second node sends a data packet, so the third time period is a time period included in the first time period.
  • the second time period is a time period during which the master node sends the first feedback information, and is also a time period during which all slave nodes receive the first feedback information.
  • the second time period it can be unicast, multicast or broadcast to inform the three slave nodes of the specific receiving situation, and the use of multicast or broadcast can make the transmission more efficient, and the blank between the master node and the slave node
  • the preset time interval for transceiving transitions
  • (b) in Fig. 3 shows a situation that there may be a waste of resources in the first group, and (b) in Fig. 3 represents the time resource actually occupied by the master-slave node, as shown in Fig. 3
  • the time resource actually occupied by the slave node #1 is shorter than that of the slave node #2 and the slave node #3, which leads to a waste of time resources, and a blank box shows the wasted time resources in the figure.
  • the slave node #1 exits the group the overall transmission efficiency can be improved.
  • 3 is only an example of a situation, and there are other situations, for example, the time resource actually required by a certain second node is greater than the above-mentioned third time period (the time resource configured by the first node for it) time resources in the first group), at this time, the second node cannot send a complete data packet every time, resulting in continuous retransmission, and the second node can also be kicked out. There are many other situations, so I won't list them one by one.
  • FIG. 4 is a schematic flowchart of another communication method according to an embodiment of the present application.
  • FIG. 4 can be regarded as a specific example of the first node side when the SN and NESN are used for communication.
  • NESN may take a value of 0 or 1
  • changing the value of NESN is: if the value of NESN is 0, change it to 1; if the value of NESN is 1, change it to 0.
  • changing the value of NESN may be: adding 1 to the value of NESN.
  • the value of NESN here is the NESN maintained by the first node and the NESN notified to the second node.
  • NESN Keep the value of NESN unchanged.
  • the value of NESN here is the NESN maintained by the first node and the NESN notified to the second node.
  • step 404 is optional.
  • Figure 2 and Figure 4 mainly focus on introducing the solution of the embodiment of the present application from the perspective of the first node.
  • the following focuses on the introduction from the perspective of the second node.
  • FIG. 5 is a schematic flowchart of another communication method according to an embodiment of the present application.
  • Both FIG. 5 and FIG. 6 can be regarded as specific examples on the second node side when the second node uses the first feedback information to communicate in FIG.
  • the first feedback information carries NESN, a specific example on the second node side
  • Figure 6 can be regarded as a specific example on the second node side when ACK and NACK are used for communication, that is, when the first feedback information carries ACK or NACK .
  • the NESN may be carried by the first feedback information sent by the first node, or in other words, the first feedback information includes the NESN; it may also be that the first node sends a data packet to the second node, The header of this packet includes the NESN.
  • the value of the SN maintained by the second node is equal to the value of the SN of the first data packet sent by the second node.
  • Change the value of SN refers to changing the value of the SN maintained by the second node.
  • SN has only two possible values of 0 or 1, so changing the value of SN is: if the value of SN is 0, change it to 1; if the value of SN is 1, change it to 0 .
  • step 505 is an optional operation.
  • the SN maintained by the second node may be stored on the second node for comparison with the NESN sent by the first node.
  • the second data packet and the first data packet will also carry SN.
  • the SN in the data packet is to tell the first node that the sequence number of the data packet is, so that the first node can NESN to determine reception.
  • FIG. 6 is a schematic flowchart of another communication method according to an embodiment of the present application.
  • Fig. 6 can be regarded as a specific example of the second node side when the first feedback information is used for communication.
  • the first feedback information is ACK or NACK.
  • step 602. Determine whether the first feedback information of the first node is ACK, and when the determination result is "Yes”, perform step 603; when the determination result is "No", perform step 604.
  • the first node receives the first feedback information, and when the first feedback information is 1, judges that the first node of the first node The first feedback information is ACK; when the first feedback information is 0, it is determined that the first feedback information of the first node is NACK.
  • 1 may also be used to indicate NACK, and 0 may be used to indicate ACK, which will not be repeated here.
  • the communication device is introduced below. For the sake of brevity, some content is omitted, and the omitted part can refer to the introduction of the communication method above.
  • Fig. 7 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • a communication device 1000 includes a transceiver unit 1001 and a processing unit 1002 .
  • the communication device 1000 shown in FIG. 7 may be used to perform the steps performed by the first node in the above communication method.
  • the transceiver unit 1001 may be used to perform steps 201 and 203
  • the processing unit 1002 may be used to perform step 202 .
  • the transceiver unit 1001 may also be configured to perform one or more steps in step 204 to step 207 .
  • the transceiver unit 1001 may be used to perform step 401 , step 405 and step 406
  • the processing unit 1002 may be used to perform step 402 to step 404 .
  • the transceiver unit 1001 may be configured to receive at least one first data packet from a first group within a first time period, and the first group includes a plurality of second nodes.
  • the processing unit 1002 may be configured to generate first feedback information, where the first feedback information is feedback information for any second node in the first group corresponding to the first time period.
  • the processing unit 1002 is specifically configured to generate the first feedback information according to the data identification information carried in at least one first data packet from multiple second nodes.
  • the transceiving unit 1001 may also be configured to send first feedback information.
  • the first feedback information is carried by 1 bit.
  • the first time period is a periodic time interval.
  • the transceiver unit 1001 is further configured to send configuration information to each of the multiple second nodes, where the configuration information is used to indicate a second time period, and the second time period is used to carry the first feedback information.
  • the configuration information may also be used to indicate that the second node belongs to the first group.
  • the first feedback information is used to indicate that the reception is correct; or if at least one data packet in at least one first data packet fails to be received, the first feedback information is used to indicate reception errors.
  • the successful reception of the first data packet may be: the first data packet is decoded correctly, and the sequence number SN of the first data packet is equal to the expected sequence number NESN of the first node.
  • the failure to receive the first data packet may be: the first data packet is correctly decoded, and the sequence number SN of the first data packet is not equal to the expected sequence number NESN of the first node; or the first data packet is decoded incorrectly; or the first packet is not received data pack.
  • the processing unit 1002 if the first feedback information is used to indicate that the reception is correct, the processing unit 1002 is configured to change the value of NESN; or if the first feedback information is used to indicate a reception error, the processing unit 1002 is configured to maintain the value of NESN The value does not change.
  • the transceiver unit 1001 if the first feedback information indicates a reception error, the transceiver unit 1001 is configured to receive at least one first data packet from the first group again; or if the first group of feedback information indicates that the reception is correct, the transceiver unit 1001 is used to receive at least one second data packet from the first group, where the second data packet is different from the first data packet.
  • the transceiver unit 1001 is further configured to: send second information to the second node, the second information is used to indicate that the second node exits the first group or the second node belongs to the second group or the second node Working in a second mode different from the first mode, the first mode being the working mode of the first group.
  • the transceiver unit 1001 is further configured to: send third information to the second node, the third information is used to indicate a third time period, and the third time period is used for the second node to send the first For data packets, the third time period is included in the first time period.
  • the communication device 1000 may be a Bluetooth device and be a master node.
  • the transceiver unit 1001 may be a transceiver, or the transceiver unit 1001 may include a receiver and a transmitter.
  • the communication apparatus 1000 may be a chip or an integrated circuit installed in a terminal device, a Bluetooth device, a network device, and the like.
  • the transceiver unit 1001 may be a communication interface or an interface circuit.
  • an input/output interface or an input/output circuit may be a communication interface or an interface circuit.
  • the processing unit 1002 is configured to perform processing and/or operations implemented internally by the communication device 1000 other than the actions of sending and receiving. For example, generating first feedback information and the like.
  • the processing unit 1002 may be a processing device.
  • the functions of the processing device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the processing device may include at least one processor and at least one memory, wherein the at least one memory is used to store a computer program, and the at least one processor reads and executes the computer program stored in the at least one memory, such that The communication device 1000 executes the operations and/or processes performed by the first node in each method embodiment.
  • the processing means may comprise only a processor, and the memory for storing the computer program is located outside the processing means.
  • the processor is connected to the memory through circuits/wires to read and execute the computer programs stored in the memory.
  • the processing device may also be a chip or an integrated circuit.
  • the processing device includes a processing circuit/logic circuit and an interface circuit, the interface circuit is used to send and receive data packets or information, and the processing circuit is used to generate first feedback information and the like.
  • Fig. 8 is a schematic block diagram of another communication device according to an embodiment of the present application.
  • a communication device 2000 includes a sending unit 2001 and a receiving unit 2002 .
  • the communication device 2000 shown in FIG. 8 may be used to perform the steps performed by the second node in the above communication method.
  • the communication device 2000 may also include a processing unit 2003, and the communication device 2000 may also be used to execute the methods shown in FIG. 5 and FIG. 506.
  • the processing unit 2003 may be configured to execute step 502 to step 504.
  • the receiving unit 2002 may be configured to execute step 601
  • the sending unit 2001 may be configured to execute step 603 and step 604
  • the processing unit 2003 may be configured to execute step 602 .
  • the sending unit 2001 may be configured to send the first data packet within the third time period.
  • the receiving unit 2002 may be configured to receive first feedback information, the first feedback information is feedback information for any second node in the first group to which the second node belongs corresponding to the first time period, and the third time period is included in first time period.
  • the first feedback information is carried by 1 bit.
  • the first time period is a periodic time interval.
  • the receiving unit 2002 is further configured to receive configuration information, where the configuration information is used to indicate a second time period, and the second time period is used to bear the first feedback information.
  • the configuration information is used to indicate that the second node belongs to the first group.
  • the first data packet carries data identification information
  • the first feedback information is generated according to the data identification information
  • the sending unit 2001 is also used to:
  • a second data packet is sent, wherein the second data packet is different from the first data packet.
  • the first feedback information includes the expected sequence number NESN, and when the NESN is equal to the SN of the first data packet, the first feedback information indicates a reception error; or when the NESN is not equal to the SN of the first data packet , the first feedback information indicates that the reception is correct.
  • the communication device 2000 further includes a processing unit 2003. If the first feedback information indicates a receiving error, the processing unit 2003 is configured to keep the value of the SN maintained by the second node unchanged; or if the first feedback information indicates receiving Correct, the processing unit 2003 is used to change the value of the SN maintained by the second node.
  • the transceiver unit 2001 is further configured to: send second information to the second node, the second information is used to indicate that the second node exits the first group or that the second node belongs to the second group or that the second node Working in a second mode different from the first mode, the first mode being the working mode of the first group.
  • the receiving unit 2001 is further configured to: receive second information, the second information is used to indicate that the second node exits the first group or that the second node belongs to the second group or that the second node works in a different The second mode of the first mode, the first mode is the working mode of the first group.
  • the receiving unit 2001 is further configured to: receive third information, where the third information is used to indicate a third time period.
  • the communication device 2000 may be a master node communication device, in this case, the transceiver unit 2001 may be a transceiver, or the transceiver unit 2001 may include a receiver and a transmitter.
  • the communication apparatus 2000 may be a chip or an integrated circuit installed in a terminal device, a network device, and the like.
  • the transceiver unit 2001 may be a communication interface or an interface circuit.
  • an input/output interface or an input/output circuit may be a communication interface or an interface circuit.
  • the processing unit 2002 is configured to perform processing and/or operations implemented internally by the communication device 2000 other than the actions of sending and receiving. For example, generating first feedback information and the like.
  • the processing unit 2002 may be a processing device.
  • the functions of the processing device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the processing device may include at least one processor and at least one memory, wherein the at least one memory is used to store a computer program, and the at least one processor reads and executes the computer program stored in the at least one memory, such that The communication device 2000 executes the operations and/or processes performed by the first node in each method embodiment.
  • the processing means may comprise only a processor, and the memory for storing the computer program is located outside the processing means.
  • the processor is connected to the memory through circuits/wires to read and execute the computer programs stored in the memory.
  • the processing device may also be a chip or an integrated circuit.
  • the processing device includes a processing circuit/logic circuit and an interface circuit, the interface circuit is used to send and receive data packets or information, and the processing circuit is used to generate first feedback information and the like.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • a communication device 3000 includes: one or more processors 3001 , one or more memories 3002 and one or more communication interfaces 3003 .
  • the processor 3001 is used to control the communication interface 3003 to send and receive signals
  • the memory 3002 is used to store a computer program
  • the processor 3001 is used to call and run the computer program from the memory 3002, so that the communication device 3000 executes the method described in each method embodiment of the present application. The process and/or operation performed by the first node.
  • the processor 3001 may have the functions of the processing unit 1002 shown in FIG. 7
  • the communication interface 3003 may have the functions of the transceiver unit 1001 shown in FIG. 7
  • the processor 3001 may be used to perform the processing and/or operations performed internally by the first node in the above-mentioned communication method
  • the communication interface 3003 is used to perform the sending and/or receiving action performed by the first node in the above-mentioned communication method .
  • the communication device 3000 may be the first node in the method embodiment.
  • the communication interface 3003 may be a transceiver.
  • a transceiver may include a receiver and a transmitter.
  • the processor 3001 may be a baseband device, and the communication interface 3003 may be a radio frequency device.
  • the communication device 3000 may be a chip or an integrated circuit installed in the first node.
  • the communication interface 3003 may be an interface circuit or an input/output interface.
  • Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • a communication device 4000 includes: one or more processors 4001 , one or more memories 4002 and one or more communication interfaces 4003 .
  • the processor 4001 is used to control the communication interface 4003 to send and receive signals
  • the memory 4002 is used to store a computer program
  • the processor 4001 is used to call and run the computer program from the memory 4002, so that the communication device 4000 executes the method described in each method embodiment of the present application.
  • the process and/or operation performed by the second node is performed by the second node.
  • the processor 4001 may have the functions of the processing unit 2003 shown in FIG. 8
  • the communication interface 4003 may have the functions of the receiving unit 2002 and/or the sending unit 2001 shown in FIG. 8 .
  • the processor 4001 may be used to perform the processing and/or operations performed internally by the second node in the above-mentioned communication method
  • the communication interface 4003 is used to perform the sending and/or receiving action performed by the second node in the above-mentioned communication method .
  • the communication device 4000 may be the second node in the method embodiment.
  • the communication interface 4003 may be a transceiver.
  • a transceiver may include a receiver and a transmitter.
  • the processor 4001 may be a baseband device, and the communication interface 4003 may be a radio frequency device.
  • the communication device 4000 may be a chip or an integrated circuit installed in the second node.
  • the communication interface 4003 may be an interface circuit or an input/output interface.
  • the memory and the processor in the foregoing apparatus embodiments may be physically independent units, or the memory may also be integrated with the processor, which is not limited herein.
  • the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on the computer, the method executed by the first node in each method embodiment of the present application Actions and/or processes are performed.
  • the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on the computer, the operations performed by the second node in each method embodiment of the present application and the /or the process is executed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions. When the computer program codes or instructions are run on a computer, the operations performed by the first node in each method embodiment of the present application and the /or the process is executed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions. When the computer program codes or instructions are run on the computer, the operations performed by the second node in each method embodiment of the present application and/or The process is executed.
  • the present application also provides a chip, the chip includes a processor, the memory for storing the computer program is set independently or integrated with the chip, the processor is used for executing the computer program, so that the node installed with the chip Execute the operation and/or processing performed by the first node in any one method embodiment.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit or the like.
  • the chip may further include the memory.
  • the present application also provides a communication device (for example, it may be a chip), including at least one processor and a communication interface, and the communication interface is used to receive a signal and transmit the signal to the at least one processor, so The at least one processor processes the signal, so that the operation and/or processing performed by the first node in any one method embodiment is performed.
  • a communication device for example, it may be a chip
  • the communication interface is used to receive a signal and transmit the signal to the at least one processor, so The at least one processor processes the signal, so that the operation and/or processing performed by the first node in any one method embodiment is performed.
  • the present application also provides a communication device (for example, a chip), including a processor and a communication interface, the communication interface is used to receive a signal and transmit the signal to the processor, and the processor processes the signal, so that the operation and/or processing performed by the second node in any one method embodiment is performed.
  • a communication device for example, a chip
  • the communication interface is used to receive a signal and transmit the signal to the processor, and the processor processes the signal, so that the operation and/or processing performed by the second node in any one method embodiment is performed.
  • the present application also provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is configured to execute computer programs or instructions stored in the at least one memory, The operation and/or processing performed by the first node in any method embodiment is executed.
  • the present application also provides a communication device, including at least one processor, the at least one processor is coupled with at least one memory, and the at least one processor is used to execute the computer programs or instructions stored in the at least one memory, so that any Operations and/or processing performed by the second node in a method embodiment are performed.
  • the at least one processor is integrated with the at least one memory.
  • the present application also provides a communication device, including a processor, a memory, and a transceiver.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the operations performed by the first node in any method embodiment and/or deal with.
  • the present application also provides a communication device, including a processor, a memory, and a transceiver.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the operations performed by the second node in any method embodiment and/or deal with.
  • the present application also provides a wireless communication system, including the first node and/or the second node in the embodiment of the present application.
  • the processor in this embodiment of the present application may be an integrated circuit chip capable of processing signals.
  • each step of the above-mentioned method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable Logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the methods disclosed in the embodiments of the present application may be directly implemented by a hardware coded processor, or executed by a combination of hardware and software modules in the coded processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory can be random access memory (RAM), which acts as external cache memory.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • direct rambus RAM direct rambus RAM
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.

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  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种通信方法和通信装置，能够提高通信传输性能，可以应用于智能终端、智能家居、智能运输或者智能制造等领域。该方法包括：在第一时间段内接收来自第一群组的至少一个第一数据包，第一群组包括多个第二节点；生成第一反馈信息，第一反馈信息为对应第一时间段、针对第一群组中任一个第二节点的反馈信息；发送第一反馈信息。该方案主要通过采用群组反馈的方式，即一个群组中的多个第二节点共用一个反馈信息，从而有效提高传输效率。

Description

通信方法和通信装置 技术领域
本申请涉及通信领域，尤其涉及无线通信领域，具体涉及一种通信方法和通信装置。
背景技术
在一些现有通信场景中，由主节点与从节点之间进行数据或信息交互的，但从节点不能主动发起通信，需要主节点来发起，所以当从主节点到从节点的通信需求与从节点到主节点的通信需求悬殊时，就会导致整体资源利用率过低。以电池管理系统(BMS)为例，主节点为电池管理单元，从节点为众多的电池单元，电池管理单元的数量远小于电池单元的数量，且电池单元需要非常频繁地上报电池状态给电池管理单元，但电池管理单元需要给电池单元发送的数据却相对少很多。如上所述，从节点需要主节点首先发起通信，所以导致为了能满足从节点的触发需求，主节点需要不断发送空包给从节点，以及每次触发的收发转换的时间消耗等等，这就导致整体的资源利用率过低。
因此，如何解决这类主从节点通信需求不均衡场景下的资源利用率过低的问题，从而提高传输性能是亟待解决的技术问题。
发明内容
本申请提供了一种通信方法和通信装置，能够提高传输性能。
第一方面，提供了一种通信方法。该方法可以由主节点执行，如由移动终端、可穿戴设备或者车载设备等执行；或者，该方法也可以由配置于主节点中的芯片或集成电路执行，本申请对此不作限定。
该方法包括：在第一时间段内接收来自第一群组的至少一个第一数据包，第一群组包括多个第二节点；生成第一反馈信息，第一反馈信息为对应第一时间段、针对第一群组中任一个第二节点的反馈信息；发送第一反馈信息。
在本申请技术方案中，主要通过采用群组反馈的方式，即一个群组中的多个第二节点共用一个反馈信息，从而有效提高传输效率。
在发送第一反馈信息时，可以采用单播、组播或广播的方式来向第一群组或第一群组中的每个第二节点发送该第一反馈信息，且采用组播或广播的方式可以使得传输更高效。
结合第一方面，在第一方面的某些实现方式中，第一反馈信息通过1比特承载。相当于所有第一群组中的第二节点共用该1比特的反馈信息，可以进一步提高传输效率。
结合第一方面，在第一方面的某些实现方式中，第一时间段为周期性的时间间隔。即第一群组的发送数据包的时间段为周期性的，第一节点接收数据包的时间段也是周期性的，二者对应。
结合第一方面，在第一方面的某些实现方式中，上述通信方法还包括：向多个第二节点中的每个第二节点发送配置信息，该配置信息用于指示第二时间段，第二时间段用于承 载第一反馈信息。可选地，该配置信息还可以用于指示第二节点属于第一群组，也就是说，为第二节点分配其在第一群组中可以使用的资源，使得第二节点可以在第一群组的时间资源上收发数据或信息。
结合第一方面，在第一方面的某些实现方式中，可以采用下面的方式生成第一反馈信息：根据至少一个第一数据包中携带的数据标识信息，生成第一反馈信息。
结合第一方面，在第一方面的某些实现方式中，若至少一个第一数据包全部接收成功，第一反馈信息用于指示接收正确；或者若至少一个第一数据包中存在至少一个数据包接收失败，第一反馈信息用于指示接收错误。即接收正确表示所有第一数据包都是接收成功的，接收错误表示至少一个第一数据包是接收失败的。
需要说明的是，接收成功和接收失败是针对每个第一数据包而言的，接收正确和接收错误则是针对所有第一数据包而言的。在一种实现方式中，接收成功可以是正确解码了第一数据包，且第一数据包是第一节点想要的数据包，接收失败则可以是第一数据包解码错误，或者没有接收到第一数据包，或者虽然正确解码了第一数据包，但第一数据包不是第一节点想要的数据包。
如果利用序列号(serial number，SN)和期望序列号(next expected serial number，NESN)来标识第一数据包，即可以在第一数据包的包头中写入SN，则可以通过判断SN和NESN的关系，来确定接收成功和接收失败。
SN和NESN的长度都是1比特，取值范围均为0或1。第一节点主要根据接收情况来维护(保持或改变)NESN的值，第二节点则主要根据第一节点反馈的接收情况来维护(保持或改变)SN的值。
结合第一方面，在第一方面的某些实现方式中，第一数据包接收成功为：正确解码第一数据包，且第一数据包的序列号SN等于第一节点的期望序列号NESN。
结合第一方面，在第一方面的某些实现方式中，第一数据包接收失败为：正确解码第一数据包，且第一数据包的序列号SN不等于第一节点的期望序列号NESN；或者第一数据包解码错误；或者未接收到第一数据包。
可选地，第一节点还可以通过更新NESN的值来告知第二节点下一次需要其发送的数据包。结合第一方面，在第一方面的某些实现方式中，上述通信方法还包括：若第一反馈信息用于指示接收正确，改变NESN的值；或者若第一反馈信息用于指示接收错误，保持NESN的值不变。
结合第一方面，在第一方面的某些实现方式中，上述通信方法还包括：若第一反馈信息指示接收错误，再次接收来自第一群组的至少一个第一数据包；或者若第一组反馈信息指示接收正确，接收来自第一群组的至少一个第二数据包，其中，第二数据包与第一数据包不同。例如，第二数据包的有效负载与第一数据包的有效负载不同，又例如，第二数据包的数据标识与第一数据包的数据标识不同，再例如可以是第二数据包的SN和第一数据包的SN不同。
结合第一方面，在第一方面的某些实现方式中，上述通信方法还包括：向第二节点发送第二信息，第二信息用于指示第二节点退出第一群组或者第二节点属于第二群组或者第二节点工作于不同于第一模式的第二模式，第一模式为第一群组的工作模式。也就是说，第一节点向第一群组中的某个第二节点发送第二信息，来指示其不再采用在第一群组中的 工作模式。主要实现了退出机制，这样可以使得将不适合群组中的第二节点踢出。
在一些实现方式中，上述方法还可以包括加入机制，可以让不属于第一群组的从节点，例如第三节点，加入到第一群组，加入的方式可以参照上述配置信息和第二信息，即可以向第三节点发送上述配置信息，该配置信息用于指示第三节点属于第一群组，或者用于指示第三节点在第一群组中的可用时间资源，例如本申请中的第三时间段、第二时间段等；或者可以向第三节点发送上述第二信息，该第二信息用于指示第三节点的第三时间段。
结合第一方面，在第一方面的某些实现方式中，上述通信方法还包括：向第二节点发送第三信息，第三信息用于指示第三时间段，第三时间段用于第二节点向第一节点发送第一数据包，第三时间段包含于第一时间段。也就是说，第一节点向第一群组中的某个第二节点发送第三信息，来指示其具体利用第一群组的第一时间段中的那一段时间段来发送第一数据包。
第二方面，提供了一种通信方法。该方法可以由从节点执行，如由移动终端、可穿戴设备或者车载设备等执行；或者，该方法也可以由配置于从节点中的芯片或集成电路执行，本申请对此不作限定。
该方法包括：在第三时间段内发送第一数据包；接收第一反馈信息，第一反馈信息为对应第一时间段、针对第二节点所属的第一群组中的任一个第二节点的反馈信息，第三时间段包含于第一时间段。
在本申请技术方案中，主要通过采用群组反馈的方式，即一个群组中的多个第二节点共用一个反馈信息，从而有效提高传输效率。主要通过采用群组反馈的方式，即一个群组中的多个第二节点共用一个反馈信息，从而有效提高传输效率。
结合第二方面，在第二方面的某些实现方式中，第一反馈信息通过1比特承载。
结合第二方面，在第二方面的某些实现方式中，第一时间段为周期性的时间间隔。
结合第二方面，在第二方面的某些实现方式中，上述通信方法还包括：接收配置信息，该配置信息用于指示第二时间段，第二时间段用于承载第一反馈信息。可选地，该配置信息还可以用于指示第二节点属于第一群组。
结合第二方面，在第二方面的某些实现方式中，第一数据包中携带有数据标识信息，第一反馈信息是根据数据标识信息生成的。
结合第二方面，在第二方面的某些实现方式中，上述通信方法还包括：若第一反馈信息指示接收错误，再次发送第一数据包；或者若第一反馈信息指示接收正确，发送第二数据包，其中，第二数据包与第一数据包不同。
结合第二方面，在第二方面的某些实现方式中，第一反馈信息包括期望序列号NESN，当NESN与第一数据包的序列号相等时，第一反馈信息指示接收错误；当NESN与SN不相等时，第一反馈信息指示接收正确。
结合第二方面，在第二方面的某些实现方式中，上述通信方法还包括：若第一反馈信息指示接收错误，保持第二节点维护的SN的值不变；或者若第一反馈信息指示接收正确，改变第二节点维护的SN的值。
结合第二方面，在第二方面的某些实现方式中，上述通信方法还包括：接收第二信息，第二信息用于指示第二节点退出第一群组或者第二节点属于第二群组或者第二节点工作于不同于第一模式的第二模式，第一模式为第一群组的工作模式。
结合第二方面，在第二方面的某些实现方式中，上述通信方法还包括：接收第三信息，第三信息用于指示第三时间段。
第三方面，提供一种通信装置，所述通信装置用于执行上述第一方面提供的方法。具体地，所述通信装置可以包括用于执行第一方面提供的方法的模块。
第四方面，提供一种通信装置，所述通信装置用于执行上述第二方面提供的方法。具体地，所述通信装置可以包括用于执行第二方面提供的方法的模块。
第五方面，提供一种通信装置，包括至少一个处理器。该至少一个处理器与至少一个存储器耦合，可用于执行存储器中的指令，以实现上述第一方面或第一方面中任一种可能实现方式中的方法。
可选地，该通信装置还包括至少一个存储器。
可选地，该通信装置还包括通信接口，至少一个处理器与通信接口耦合，所述通信接口用于输入和/或输出信息。所述信息包括指令和数据中的至少一项。
在一种实现方式中，该通信装置为第一节点(主节点)，如移动终端。当该通信装置为第一节点(主节点)时，所述通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为芯片或芯片系统。当该通信装置为芯片或芯片系统时，所述通信接口可以是输入/输出接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。所述处理器也可以体现为处理电路或逻辑电路。
在另一种实现方式中，该通信装置为配置于第一节点(主节点)中的芯片或芯片系统。
可选地，所述收发器可以为收发电路。
可选地，所述输入/输出接口可以为输入/输出电路。
第六方面，提供一种通信装置，包括至少一个处理器。该至少一个处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第二方面或第二方面中任一种可能实现方式中的方法。
可选地，该通信装置还包括至少一个存储器。
可选地，该通信装置还包括通信接口，至少一个处理器与通信接口耦合，所述通信接口用于输入和/或输出信息。
在一种实现方式中，该通信装置为第二节点(从节点)，如移动终端。当该通信装置为第二节点(从节点)时，所述通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为芯片或芯片系统。当该通信装置为芯片或芯片系统时，所述通信接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。所述处理器也可以体现为处理电路或逻辑电路。
在另一种实现方式中，该通信装置为配置于第二节点(从节点)中的芯片或芯片系统。
可选地，所述收发器可以为收发电路。
可选地，所述输入/输出接口可以为输入/输出电路。
第七方面，提供了一种芯片，包括：至少一个处理器和通信接口。所述通信接口用于接收输入所述芯片的信号或用于从所述芯片输出信号，所述处理器与所述通信接口通信且通过逻辑电路或执行代码指令用于实现上述第一方面或第一方面中任一种可能实现方式中的方法，或用于实现上述第二方面或第二方面中任一种可能实现方式中的方法。
第八方面，提供了一种通信装置，包括：至少一个存储器，用于存储计算机指令；至少一个处理器，用于执行所述至少一个存储器中存储的计算机指令，使得所述通信装置执行上述第一方面或第一方面中任一种可能实现方式中的方法，或，使得所述通信装置执行上述第二方面或第二方面中任一种可能实现方式中的方法。
第九方面，提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被通信装置执行时，使得所述通信装置实现第一方面或第一方面的任一可能的实现方式中的方法。
第十方面，提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被通信装置执行时，使得所述通信装置实现第二方面或第二方面的任一可能的实现方式中的方法。
第十一方面，提供一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第一方面或第一方面中任一可能实现方式中的方法。
第十二方面，提供一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第二方面或第二方面中任一可能实现方式中的方法。
第十三方面，提供了一种终端设备，包括第三方面或第四方面的通信装置。例如，该终端设备可以是智能终端、智能家居、智能运输或者智能制造等领域的终端设备。具体可以为车辆、无人机、智慧屏、电池管理系统、手机、耳机、车载设备等设备。
第十四方面，提供了一种通信系统，包括前述的第一节点和第二节点。
附图说明
图1是本申请实施例的通信系统的示意图。
图2是本申请实施例的一种通信方法的示意性流程图。
图3是本申请实施例的时间段的关系示意图。
图4是本申请实施例的另一种通信方法的示意性流程图。
图5是本申请实施例的又一种通信方法的示意性流程图。
图6是本申请实施例的又一种通信方法的示意性流程图。
图7是本申请实施例的一种通信装置的示意性框图。
图8是本申请实施例的另一种通信装置的示意性框图。
图9是本申请实施例的一种通信装置的示意性结构图。
图10是本申请实施例的通信装置的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：第五代(5th generation，5G)系统或新无线(new radio，NR)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、短距 离通信系统(不限于蓝牙、WIFI等传统短距通信系统，也可以是未来的其他短距通信系统)等。本申请实施例的技术方案还可以应用于设备到设备(device to device，D2D)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及车联网系统中的通信。其中，车联网系统中的通信方式统称为V2X(X代表任何事物)，例如，该V2X通信包括：车辆与车辆(vehicle to vehicle，V2V)通信，车辆与路边基础设施(vehicle to infrastructure，V2I)通信、车辆与行人之间的通信(vehicle to pedestrian，V2P)或车辆与网络(vehicle to network，V2N)通信等。
本申请中，网络设备可以是演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)。应理解，该网络设备可以是还可以是5.5G或6G等系统中的基站，或者，还可以是当前或未来短距离通信系统中的具有管理功能的设备(例如主节点等)等。需要说明的是，本申请中的网络设备也可以是终端设备。
本申请中，终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。本申请的实施例中的终端设备可以是车辆、车载设备、非车载设备、手持终端(如，手机(mobile phone)或者车钥匙等)、平板电脑(Pad)、带无线收发功能的电脑、可穿戴设备(如，虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备或者耳机等)、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端(如，智能家居)等等。应理解，终端设备可以是任意类型的终端。进一步地，该终端设备可以是现有的或者未来可能出现的具有短距离通信功能的终端设备(例如从节点)，比如，可以为支持蓝牙或者WiFi通信功能的终端设备。
图1是本申请实施例的通信系统的示意图。如图1所示，该通信系统包括至少一个第一节点和至少一个第一群组，第一群组中包括多个第二节点，图中分别用第二节点#1至第二节点#N表示，其中，N为大于或等于2的整数。第一群组中的多个第二节点均可以与第一节点进行通信。
第一节点和第二节点可以是上述网络设备或终端设备，第一节点为主节点，第二节点为从节点。为了使得描述更形象，在图1中给出了不同种类的第一节点和第二节点的一些具体示例第一节点和第二节点。例如可以为电脑、手机、平板电脑或车载终端等，还可以是主机、服务器等，只要具备上述任意一种或多种通信方式的网络设备或终端设备均可， 但应理解，这只是一个具体示例，不存在对于第一节点和第二节点的具体种类的限定。以上述BMS为例的话，第一节点为电池管理单元，第二节点为从节点，主节点和从节点之间可以为蓝牙等短距离通信或者其他的通信方式。
一般的，主节点负责管理从节点，可以为从节点分配或者调度通信资源。
图2是本申请实施例的一种通信方法的示意性流程图。下面对图2所示各个步骤进行介绍。例如，#M是第一群组中的任意一个第二节点，M为正整数，用于表示其在第一群组中的多个第二节点中的编号。假设第一群组包括N个第二节点，N为大于或等于2的正整数，则M为小于或等于N的正整数。但应理解，这只是编号方式的一种，还可以是其他情况，例如M还可以为大于或等于0且小于或等于N-1的整数。
201、第一节点在第一时间段内接收来自第一群组的至少一个第一数据包。
第一节点在第一时间段内接收来自第一群组的至少一个第一数据包，该第一群组包括多个第二节点。应理解，此处“接收”是接收的过程，而不是接收的结果，可以理解为尝试接收，可以包括一下任意一种或多种情况：没收到第一数据包、收到第一数据包但解码失败、收到第一数据包且解码成功。也就是说，在该过程中，第一节点可能会接收到第一群组的每个第二节点的第一数据包，也可能只接收到其中部分第二节点的第一数据包，且收到的第一数据包可能解码成功也可能解码失败。还应理解，第一数据包只适用于表示第二节点在第一时间段内发送的数据包，但并不表示多个第二节点发送的数据包内容是相同的，也就是说，多个第二节点发送的第一数据包的内容是不存在限定的。
在一些实现方式中，第一时间段可以是周期性的时间间隔，即第一群组的发送数据包的时间段为周期性的，第一节点接收数据包的时间段也是周期性的，二者对应。
具体实现中，对于第一节点侧，是在第一时间段内接收第一群组的所有第二节点的数据包，而对于第二节点侧，单个的第二节点的发送数据包的时间段只是上述第一时间段的一部分，而不是上述第一时间段的全部，因此此处采用了第三时间段加以区分，第三时间段包含于第一时间段。
需要说明的是，所述第三时间段可以是第一节点为第二节点配置的。例如，第一节点为第二节点发送配置信息，所述配置信息可以用于指示配置的时间域上的资源，例如，第三时间段的起始时刻和/或结束时刻，则第二节点可以在指示的第三时间段上向第一节点发送第一数据包。
在一种可能的实现方式中，配置信息可以同时包含第三时间段的起始时刻和结束时刻，则此时配置信息可以明确指示第三时间段。
在另外一种可能的实现方式中，假定协议约定了单个节点单次数据发送所能占用的最大时间宽度，则可以只配置第三时间段的起始时刻，就可以确定第三时间段。
可以理解的是，所述第三时间段可以对应于一个发送时间窗。
一种设计中，所述第三时间段可以是周期性的。
202、第一节点生成第一反馈信息。
第一反馈信息为对应第一时间段、针对第一群组中任一个第二节点的反馈信息，也就是说，该第一反馈信息是针对第一群组中的所有第二节点的。
在一些实现方式中，第一反馈信息可以通过1比特承载，相当于所有第一群组中的第二节点共用该1比特的反馈信息，可以进一步提高传输效率。
在另一些实现方式中，可以根据至少一个第一数据包中携带的数据标识信息，生成所述第一反馈信息。
在又一些实现方式中，第一反馈信息用于指示接收正确或接收错误。例如，若至少一个第一数据包全部接收成功，第一反馈信息用于指示接收正确；或者
若至少一个第一数据包中存在至少一个数据包接收失败，第一反馈信息用于指示接收错误。即接收正确表示所有第一数据包都是接收成功的，接收错误表示至少一个第一数据包是接收失败的。
需要说明的是，接收成功和接收失败是针对每个第一数据包而言的，接收正确和接收错误则是针对所有第一数据包而言的。在一种实现方式中，接收成功可以是正确解码了第一数据包，且第一数据包是第一节点想要的数据包，接收失败则可以是第一数据包解码错误，或者没有接收到第一数据包，或者虽然正确解码了第一数据包，但第一数据包不是第一节点想要的数据包。
在一种可能的实现方式中，如果利用序列号(serial number，SN)来标识第一数据包，即可以在第一数据包的包头中写入SN，则可以通过判断SN和期望序列号(next expected serial number，NESN)的关系，来确定接收成功和接收失败。其中，期望序列号NESN存储在第一节点。
接收成功可以为正确解码了第一数据包，且第一数据包的序列号SN(来自第二节点)等于第一节点的期望序列号NESN。接收失败可以为正确解码第一数据包，且第一数据包的序列号SN不等于第一节点的期望序列号NESN；或者第一数据包解码错误；或者未接收到第一数据包。
可选地，第一节点还可以通过更新NESN的值来告知第二节点下一次需要其发送的数据包。即若第一反馈信息用于指示接收正确，改变NESN的值；或者若所述第一反馈信息用于指示接收错误，保持NESN的值不变。此处NESN是指第一节点通过第一反馈信息告知第二节点的NESN。在一种可能的实现方式中，NESN包含在第一反馈信息中。在另一种可能的实现方式中，NESN包含在第一节点发送给第二节点的数据包的包头中。
具体的，SN和NESN的长度可以都是1比特，取值范围为0或1。第一节点主要根据接收情况来维护(保持或改变)NESN的值，此处的NESN是第一节点维护的NESN，例如可以为本地存储或者远程存储等，本申请不限定具体的维护方式。第二节点则主要根据第一节点反馈的接收情况来维护(保持或改变)SN的值，此处的SN是第二节点维护的SN。例如可以为本地存储或者远程存储等，本申请不限定具体的维护方式。也就是第一节点和第二节点需要分别维护NESN和SN，第一节点通过第二节点发送的数据包中携带的SN和第一节点本地存储的NESN来确定接收情况，第二节点通过第一节点发送的第一反馈信息指示的NESN和第二节点维护的SN来确定再次发送第一数据包还是发送第二数据包。
简而言之，第一节点对NESN的维护是为了第一节点确定希望下一次接收的数据包的，第二节点维护的SN是为了第二节点区分已经发送的数据包和即将发送的数据包，而第一反馈信息指示的NESN是为了第一节点向第二节点告知接收情况的，第一数据包中携带的SN则是为了第二节点向第一节点告知发送的是哪个数据包的。为阐述方便，下文可能以本地存储或者本地维护的方式进行阐述，本领域技术人员可知，维护方式可以多样， 不具体限定。
如上所述实现方式中，第一反馈信息可以为NESN，而在另外一些实现方式中，第一反馈信息可以为物理层确认反馈(acknowledgement，ACK)或物理层非确认反馈(negative acknowledgement，NACK)，例如1标识ACK，0标识NACK。
这里需要说明的是，物理层反馈信息，例如物理层确认反馈或者物理层非确认反馈，是通过设备的物理层信息携带。物理层反馈信息的携带方式不同于现有技术的某些通信系统中存在的、通过物理层以上的其它层(例如蓝牙系统中通过链路层等高于物理层的协议层)携带反馈信息。在该实现方式中，通过物理层信息携带反馈信息可以更快的提供接收是否成功的指示，提高通信效率。
203、第一节点向第一群组发送第一反馈信息。
在发送第一反馈信息时，可以采用单播、组播或广播的方式来向第一群组或第一群组中的每个第二节点发送该第一反馈信息。
图2所示方法，主要通过采用群组反馈的方式，即一个群组中的多个第二节点共用一个反馈信息，从而有效提高传输效率。
图2所示方法还可以包括下面的一个或多个步骤。
204、第一节点发送配置信息，所述配置信息用于指示第二时间段。
在一些实现方式中，上述第一反馈信息可以在第二时间段内发送，第二时间段可以理解为是承载第一反馈信息的时间段，即第二节点在第二时间段内接收上述第一反馈信息，第一节点在第二时间段内发送上述第一反馈信息。第二时间段可以是由第一节点给第二节点配置的，即可以执行步骤204来实现。
在另一些实现方式中，该配置信息可以用于指示第二节点属于第一群组，也就是说，为第二节点分配其在第一群组中可以使用的资源，使得第二节点可以在第一群组的时间资源上收发数据或信息。
在上述实现方式中，该配置信息可以通过指示第二节点属于第一群组的方式间接指示所述第二时间段，或者，该配置信息可以通过指示所述第二时间段的方式指示所述第二节点属于第一群组。或者，该配置信息也可以用于指示所述第二时间段以及所述第二节点属于第一群组。
需要说明的是，本申请不限制步骤204与步骤201的先后关系。
在一种可能的实施方式中步骤204可以在步骤201之前。
205、第一节点再次接收第一数据包或接收第二数据包。
对于第一节点而言，第一节点在步骤205执行下面的过程：
若第一反馈信息指示接收错误，再次接收来自第一群组的至少一个第一数据包；或者
若第一组反馈信息指示接收正确，接收来自第一群组的至少一个第二数据包，其中，第二数据包与第一数据包不同。例如，第二数据包的有效负载与第一数据包的有效负载不同，又例如，第二数据包的数据标识与第一数据包的数据标识不同，再例如可以是第二数据包的SN和第一数据包的SN不同。
对于第二节点而言，第二节点在步骤205执行下面的过程：
若第一反馈信息指示接收错误，再次发送第一数据包；或者
若第一组反馈信息指示接收正确，发送第二数据包，其中，第二数据包与第一数据包 不同。
在一些场景中，所述方法还可以包括：206、第一节点向第二节点发送第二信息。
向第二节点发送第二信息，第二信息用于指示第二节点退出第一群组或者第二节点属于第二群组或者第二节点工作于不同于第一模式的第二模式，第一模式为第一群组的工作模式。也就是说，第一节点向第一群组中的某个第二节点发送第二信息，来指示其不再采用在第一群组中的工作模式。
第一模式与第二模式的主要区别如下：
在第二模式下所述第二节点在完成数据发送之后(不一定占用该第二节点的全部时间资源)，经过预设时间间隔，即开始接收反馈信息。
在第一模式下所述第二节点只在第二时间段接收反馈信息。即使其很早就完成了数据发送，也需要等待第二时间段接收相应的反馈信息。
步骤206主要实现了退出机制，指示相应节点退出当前所在的群组，或者，退出相应节点当前的工作模式。
在一些实现方式中，图2所示方法还可以包括加入机制，可以让不属于第一群组的从节点，例如第三节点，加入到第一群组，加入的方式可以参照步骤204和/或步骤206，即可以向第三节点发送指示信息，该指示信息用于指示第三节点属于第一群组，或者用于指示第三节点在第一群组中的可用时间资源。
207、第一节点向第二节点发送第三信息。
向第二节点发送第三信息，第三信息用于指示第三时间段，第三时间段用于第二节点向第一节点发送第一数据包，第三时间段包含于第一时间段。也就是说，第一节点向第一群组中的某个第二节点发送第三信息，来指示其具体利用第一群组的第一时间段中的那一段时间段来发送第一数据包。
需要说明的是，本申请不限制步骤204与步骤201的先后关系。
在一种可能的实施方式中步骤204可以在步骤201之前。
需要说明的是，本申请中主要关注时间维度上的通信资源，对于频率域上的通信资源分配不做要求。
在一种可能的实施方式中，可以类似蓝牙，频率域上采用跳频方式。所谓跳频技术(frequency-hopping spread spectrum；FHSS)，是指用伪随机码序列进行频移键控，使载波频率不断跳变而扩展频谱的一种方法，本领域技术人员可以采用现有的跳频方式，应用本申请实施例对于时域资源的分配方式来实现在频率域上的通信资源的分配。
为了便于理解上述第一时间段、第二时间段、第三时间段之间的关系，下面结合图3进行介绍。
图3是本申请实施例的时间段的关系示意图。在图3中，每个方框表示一段时间资源，第一节点(主节点)的时间资源用“主节点”框表示，3个第二节点(从节点)的时间资源分别用“从节点#1”、“从节点#2”和“从节点#3”的框表示。但应理解，图3只是给出了一个第一群组包括3个第二节点的示例，不存在限定。
主从节点的时间资源之间的空隙称为预设时间间隔，主要用来进行收发转换。节点在完成数据发送之后，经过该预设时间间隔之后，开始进行收据接收；或者，节点在完成数据接收之后，经过该预设时间间隔之后，开始进行数据发送。其中所述预设时间间隔可以 协议约定的，或者是收发两端协商确定的。本申请不对此进行限制。该预设时间间隔也可能被称为帧间间隔(inter frame space)时间，或者包间间隔(inter packet space)时间，或者转换时间间隔(考虑到主要用于收发转换)。节点(第一节点或第二节点)可以在该预设时间间隔之后就开始进行数据接收或发送。在另外一种可能的实施方式中，(第一节点或第二节点)节点在预设时间间隔之后的第一个整数时隙上才开始接收或者发送，从而保障收发两端(即第一节点侧和第二节点侧)时间对齐。如图3中的(a)所示，第一时间段为从节点#1至从节点#3的总的发送数据包的时间段，也是主节点接收第一群组的数据包的时间段，第三时间段则是某一个第二节点的发送数据包的时间段，因此第三时间段是包含在第一时间段内的时间段。第二时间段则是主节点发送第一反馈信息的时间段，也是所有从节点接收第一反馈信息的时间段。在第二时间段内可以是单播、组播或广播的方式来告知三个从节点具体接收情况，且采用组播或广播的方式可以使得传输更高效，主节点和从节点之间的空白为收发转换的预设时间间隔。
图3中的(b)则示出了第一群组中可能存在资源浪费的一种情况，图3中的(b)表示的是主从节点的实际占用的时间资源，如图3中的(b)所示，从节点#1实际占用的时间资源短于从节点#2和从节点#3，这就导致了时间资源的浪费，图中用空白框示出了浪费的时间资源。而如果将从节点#1退出该群组则可以得到整体传输效率的提升。但应理解，图3中的(b)只是一种情况的示例，还有其他情况，例如，某个第二节点实际需要的时间资源大于上述第三时间段(第一节点为其配置的在第一群组中的时间资源)，此时就会出现该第二节点每次都无法发送完整的数据包，从而导致不断重发，同样可以将该第二节点踢出。对于其他情况还有很多，不再一一列举。
图4是本申请实施例的另一种通信方法的示意性流程图。图4可以看作是上述利用SN和NESN进行通信时，第一节点侧的一个具体示例。
401、获取来自第二节点的第一数据包中的SN。
402、判断第一数据包的SN是否等于第一节点的NESN，当判定结果为“是”，执行步骤403和405；当判定结果为“否”，执行步骤404和406。
403、改变NESN的值。如上文所述，NESN可能取值为0或1时，改变NESN的值就是：如果NESN的值为0，就将其改成1；如果NESN的值为1，就将其改成0。在另一些实现方式中，假设NESN还有其它取值情况，则改变NESN的值可以是：将NESN的值加1。此处NESN的值是第一节点维护的NESN和告知第二节点的NESN。
404、保持NESN的值不变。此处NESN的值是第一节点维护的NESN和告知第二节点的NESN。
405、接收至少一个第二数据包，第二数据包与第一数据包不同。
406、再次接收至少一个第一数据包。
需要说明的是，步骤404可选。
图2和图4主要侧重于从第一节点的角度对本申请实施例的方案进行了介绍，为了便于读者理解方案，下面侧重于从第二节点的角度进行介绍，为了简洁，对于存在重合的部分，不再重复介绍，可以参照上文相关内容。
图5是本申请实施例的又一种通信方法的示意性流程图。图5和图6均可以看作是图7中第二节点利用第一反馈信息进行通信时的第二节点侧的具体示例，其中，图5可以看 作是利用SN和NESN进行通信时，即第一反馈信息承载NESN时，第二节点侧的一个具体示例；图6可以看作是利用ACK和NACK进行通信时，即第一反馈信息承载ACK或NACK时，第二节点侧的一个具体示例。
501、获取来自第一节点的NESN。具体而言，所述NESN可以通过第一节点发送的第一反馈信息承载，或者说，所述第一反馈信息包含所述NESN；也可以是，第一节点发送一个数据包给第二节点，该数据包的包头中包括NESN。
502、判断第一节点的NESN是否等于第二节点维护的SN(即上述第二节点发送的所述第一数据包的SN)，当判定结果为“是”，执行步骤503和505；当判定结果为“否”，执行步骤504和506。
此处第二节点维护的SN的值等于上述第二节点发送的第一数据包的SN的值。
503、保持SN的值不变。此处是指保持第二节点维护的SN的值不变。
504、改变SN的值。此处是指改变第二节点维护的SN的值。如上文所述，SN只有两个可能取值0或1，所以改变SN的值就是：如果SN的值为0，就将其改成1；如果SN的值为1，就将其改成0。
505、再次发送第一数据包。再次发送的第一数据包中的SN是保持不变的。
506、发送第二数据包，第二数据包与第一数据包不同。第二数据包中的SN是改变了的。
需要说明的是，步骤505为可选操作。第二节点维护的SN可以存储在第二节点上，用于跟第一节点发送来的NESN进行比较。而第二数据包和第一数据包中也会携带SN，数据包中的SN是为了告诉第一节点该数据包的序列号是，以使得第一节点可以根据该SN和第一节点存储的NESN来确定接收情况。
图6是本申请实施例的又一种通信方法的示意性流程图。图6可以看作是利用第一反馈信息进行通信时，第二节点侧的一个具体示例。
601、获取来自第一节点的第一反馈信息。其中第一反馈信息为ACK或NACK。
602、判断第一节点的第一反馈信息是否为ACK，当判定结果为“是”，执行步骤603；当判定结果为“否”，执行步骤604。
603、发送第二数据包，第二数据包与第一数据包不同。
604、再次发送第一数据包。
需要说明的是，在一种可能的实现方式中，当用1标识ACK，0标识NACK时，第一节点通过接收第一反馈信息，当第一反馈信息为1时，判断第一节点的第一反馈信息为ACK；当第一反馈信息为0时，判断第一节点的第一反馈信息为NACK。
当然，可以理解的是，在另外一种可能的实现方式中，也可以用1标识NACK，0标识ACK，在此不再进行赘述。
下面介绍本申请实施例的通信装置。为了简洁对部分内容进行了省略，省略部分可以参照上文通信方法的介绍。
图7是本申请实施例的一种通信装置的示意性框图。如图7所示，通信装置1000包括收发单元1001和处理单元1002。图7所示通信装置1000可以用于执行上述通信方法中第一节点执行的步骤。例如，收发单元1001可以用于执行步骤201和203，处理单元1002可以用于执行步骤202。可选地，收发单元1001还可以用于执行步骤204至步骤207 中的一个或多个步骤。又例如，收发单元1001可以用于执行步骤401、步骤405和步骤406，处理单元1002可以用于执行步骤402至步骤404。
收发单元1001可以用于在第一时间段内接收来自第一群组的至少一个第一数据包，第一群组包括多个第二节点。
处理单元1002可以用于生成第一反馈信息，第一反馈信息为对应第一时间段、针对第一群组中任一个第二节点的反馈信息。可选地，处理单元1002具体用于，根据来自多个第二节点的至少一个第一数据包中携带的数据标识信息，生成第一反馈信息。
收发单元1001还可以用于发送第一反馈信息。
在一些实现方式中，第一反馈信息通过1比特承载。
在另一些实现方式中，第一时间段为周期性的时间间隔。
在另一些实现方式中，收发单元1001还用于向多个第二节点中的每个第二节点发送配置信息，配置信息用于指示第二时间段，第二时间段用于承载第一反馈信息。可选地，配置信息还可以用于指示第二节点属于第一群组。
在另一些实现方式中，若至少一个第一数据包全部接收成功，第一反馈信息用于指示接收正确；或者若至少一个第一数据包中存在至少一个数据包接收失败，第一反馈信息用于指示接收错误。
可选地，第一数据包接收成功可以为：正确解码第一数据包，且第一数据包的序列号SN等于第一节点的期望序列号NESN。第一数据包接收失败可以为：正确解码第一数据包，且第一数据包的序列号SN不等于第一节点的期望序列号NESN；或者第一数据包解码错误；或者未接收到第一数据包。
在另一些实现方式中，若第一反馈信息用于指示接收正确，处理单元1002用于，改变NESN的值；或者若第一反馈信息用于指示接收错误，处理单元1002用于，保持NESN的值不变。
在另一些实现方式中，若第一反馈信息指示接收错误，收发单元1001用于，再次接收来自第一群组的至少一个第一数据包；或者若第一组反馈信息指示接收正确，收发单元1001用于，接收来自第一群组的至少一个第二数据包，其中，第二数据包与第一数据包不同。
在又一些实现方式中，收发单元1001还用于：向第二节点发送第二信息，第二信息用于指示第二节点退出第一群组或者第二节点属于第二群组或者第二节点工作于不同于第一模式的第二模式，第一模式为第一群组的工作模式。
在又一些实现方式中，收发单元1001还用于：向第二节点发送第三信息，第三信息用于指示第三时间段，第三时间段用于第二节点向第一节点发送第一数据包，第三时间段包含于第一时间段。
可选地，作为一个示例，通信装置1000可以为蓝牙装置，且为主节点，在这种情况下，收发单元1001可以为收发器，或者收发单元1001可以包括接收器和发射器。
可选地，作为另一个示例，通信装置1000可以为安装于终端设备或蓝牙设备、网络设备等中的芯片或集成电路。在这种情况下，收发单元1001可以为通信接口或者接口电路。例如，为输入/输出接口或输入/输出电路。
在各示例中，处理单元1002用于执行除了发送和接收的动作之外由通信装置1000内 部实现的处理和/或操作。例如，生成第一反馈信息等。
可选地，处理单元1002可以为处理装置。其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。
例如，处理装置可以包括至少一个处理器和至少一个存储器，其中，所述至少一个存储器用于存储计算机程序，所述至少一个处理器读取并执行所述至少一个存储器中存储的计算机程序，使得通信装置1000执行各方法实施例中由第一节点执行的操作和/或处理。
可选地，处理装置可以仅包括处理器，用于存储计算机程序的存储器位于处理装置之外。处理器通过电路/电线与存储器连接，以读取并执行存储器中存储的计算机程序。
可选地，在一些示例中，处理装置还可以为芯片或集成电路。例如，处理装置包括处理电路/逻辑电路和接口电路，接口电路用于收发数据包或信息，处理电路用于生成第一反馈信息等。
图8是本申请实施例的另一种通信装置的示意性框图。如图8所示，通信装置2000包括发送单元2001和接收单元2002。图8所示通信装置2000可以用于执行上述通信方法中第二节点执行的步骤。
通信装置2000还可以包括处理单元2003，通信装置2000还可以用于执行图5和图6所示方法，例如，接收单元2002可以用于执行步骤501，发送单元2001可以用于执行步骤505和步骤506，处理单元2003可以用于执行步骤502至步骤504。又例如，接收单元2002可以用于执行步骤601，发送单元2001可以用于执行步骤603和步骤604，处理单元2003可以用于执行步骤602。
发送单元2001可以用于在第三时间段内发送第一数据包。
接收单元2002可以用于接收第一反馈信息，第一反馈信息为对应第一时间段、针对第二节点所属的第一群组中的任一个第二节点的反馈信息，第三时间段包含于第一时间段。
在一些实现方式中，第一反馈信息通过1比特承载。
在另一些实现方式中，第一时间段为周期性的时间间隔。
在另一些实现方式中，接收单元2002还用于接收配置信息，配置信息用于指示第二时间段，第二时间段用于承载第一反馈信息。可选地，配置信息用于指示第二节点属于第一群组。
在另一些实现方式中，第一数据包中携带有数据标识信息，第一反馈信息是根据数据标识信息生成的。
在另一些实现方式中，发送单元2001还用于：
若第一反馈信息指示接收错误，再次发送第一数据包；或者
若第一反馈信息指示接收正确，发送第二数据包，其中，第二数据包与第一数据包不同。
在另一些实现方式中，第一反馈信息包括期望序列号NESN，当NESN与第一数据包的SN相等时，第一反馈信息指示接收错误；或者当NESN与第一数据包的SN不相等时，第一反馈信息指示接收正确。
在另一些实现方式中，通信装置2000还包括处理单元2003，若第一反馈信息指示接收错误，处理单元2003用于保持第二节点维护的SN的值不变；或者若第一反馈信息指 示接收正确，处理单元2003用于改变第二节点维护的SN的值。
在又一些实现方式中，收发单元2001还用于：向第二节点发送第二信息，第二信息用于指示第二节点退出第一群组或者第二节点属于第二群组或者第二节点工作于不同于第一模式的第二模式，第一模式为第一群组的工作模式。
在又一些实现方式中，接收单元2001还用于：接收第二信息，第二信息用于指示第二节点退出第一群组或者第二节点属于第二群组或者第二节点工作于不同于第一模式的第二模式，第一模式为第一群组的工作模式。
在又一些实现方式中，接收单元2001还用于：接收第三信息，第三信息用于指示第三时间段。
可选地，作为一个示例，通信装置2000可以为主节点通信装置，在这种情况下，收发单元2001可以为收发器，或者收发单元2001可以包括接收器和发射器。
可选地，作为另一个示例，通信装置2000可以为安装于终端设备、网络设备等中的芯片或集成电路。在这种情况下，收发单元2001可以为通信接口或者接口电路。例如，为输入/输出接口或输入/输出电路。
在各示例中，处理单元2002用于执行除了发送和接收的动作之外由通信装置2000内部实现的处理和/或操作。例如，生成第一反馈信息等。
可选地，处理单元2002可以为处理装置。其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。
例如，处理装置可以包括至少一个处理器和至少一个存储器，其中，所述至少一个存储器用于存储计算机程序，所述至少一个处理器读取并执行所述至少一个存储器中存储的计算机程序，使得通信装置2000执行各方法实施例中由第一节点执行的操作和/或处理。
可选地，处理装置可以仅包括处理器，用于存储计算机程序的存储器位于处理装置之外。处理器通过电路/电线与存储器连接，以读取并执行存储器中存储的计算机程序。
可选地，在一些示例中，处理装置还可以为芯片或集成电路。例如，处理装置包括处理电路/逻辑电路和接口电路，接口电路用于收发数据包或信息，处理电路用于生成第一反馈信息等。
图9是本申请实施例的一种通信装置的示意性结构图。如图9所示，通信装置3000包括：一个或多个处理器3001，一个或多个存储器3002以及一个或多个通信接口3003。处理器3001用于控制通信接口3003收发信号，存储器3002用于存储计算机程序，处理器3001用于从存储器3002中调用并运行该计算机程序，以使通信装置3000执行本申请各方法实施例中由第一节点执行的流程和/或操作。
例如，处理器3001可以具有图7中所示的处理单元1002的功能，通信接口3003可以具有图7中所示的收发单元1001的功能。具体地，处理器3001可以用于执行上述通信方法中由第一节点内部执行的处理和/或操作，通信接口3003用于执行上述通信方法中由第一节点执行的发送和/或接收的动作。
在一种实现方式中，通信装置3000可以为方法实施例中的第一节点。在这种实现方式中，通信接口3003可以为收发器。收发器可以包括接收器和发射器。可选地，处理器3001可以为基带装置，通信接口3003可以为射频装置。在另一种实现中，通信装置3000可以为安装在第一节点中的芯片或者集成电路。在这种实现方式中，通信接口3003可以 为接口电路或者输入/输出接口。
图10是本申请实施例的通信装置的示意性结构图。如图10所示，通信装置4000包括：一个或多个处理器4001，一个或多个存储器4002以及一个或多个通信接口4003。处理器4001用于控制通信接口4003收发信号，存储器4002用于存储计算机程序，处理器4001用于从存储器4002中调用并运行该计算机程序，以使通信装置4000执行本申请各方法实施例中由第二节点执行的流程和/或操作。
例如，处理器4001可以具有图8中所示的处理单元2003的功能，通信接口4003可以具有图8中所示的接收单元2002和/或发送单元2001的功能。具体地，处理器4001可以用于执行上述通信方法中由第二节点内部执行的处理和/或操作，通信接口4003用于执行上述通信方法中由第二节点执行的发送和/或接收的动作。
在一种实现方式中，通信装置4000可以为方法实施例中的第二节点。在这种实现方式中，通信接口4003可以为收发器。收发器可以包括接收器和发射器。可选地，处理器4001可以为基带装置，通信接口4003可以为射频装置。在另一种实现中，通信装置4000可以为安装在第二节点中的芯片或者集成电路。在这种实现方式中，通信接口4003可以为接口电路或者输入/输出接口。
可选的，上述各装置实施例中的存储器与处理器可以是物理上相互独立的单元，或者，存储器也可以和处理器集成在一起，本文不做限定。
此外，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得本申请各方法实施例中由第一节点执行的操作和/或流程被执行。
本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得本申请各方法实施例中由第二节点执行的操作和/或流程被执行。
此外，本申请还提供一种计算机程序产品，计算机程序产品包括计算机程序代码或指令，当计算机程序代码或指令在计算机上运行时，使得本申请各方法实施例中由第一节点执行的操作和/或流程被执行。
本申请还提供一种计算机程序产品，计算机程序产品包括计算机程序代码或指令，当计算机程序代码或指令在计算机上运行时，使得本申请各方法实施例中由第二节点执行的操作和/或流程被执行。
此外，本申请还提供一种芯片，所述芯片包括处理器，用于存储计算机程序的存储器独立于或者集成于芯片而设置，处理器用于执行所述计算机程序，使得安装有所述芯片的节点执行任意一个方法实施例中由第一节点执行的操作和/或处理。
进一步地，所述芯片还可以包括通信接口。所述通信接口可以是输入/输出接口，也可以为接口电路等。进一步地，所述芯片还可以包括所述存储器。
此外，本申请还提供一种通信装置(例如，可以为芯片)，包括至少一个处理器和通信接口，所述通信接口用于接收信号并将所述信号传输至所述至少一个处理器，所述至少一个处理器处理所述信号，以使得任意一个方法实施例中由第一节点执行的操作和/或处理被执行。
本申请还提供一种通信装置(例如，可以为芯片)，包括处理器和通信接口，所述通 信接口用于接收信号并将所述信号传输至所述处理器，所述处理器处理所述信号，以使得任意一个方法实施例中由第二节点执行的操作和/或处理被执行。
此外，本申请还提供一种通信装置，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合，所述至少一个处理器用于执行所述至少一个存储器中存储的计算机程序或指令，使得任意一个方法实施例中由第一节点执行的操作和/或处理被执行。
本申请还提供一种通信装置，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合，所述至少一个处理器用于执行所述至少一个存储器中存储的计算机程序或指令，使得任意一个方法实施例中由第二节点执行的操作和/或处理被执行。
可选地，所述至少一个处理器与所述至少一个存储器集成在一起。
此外，本申请还提供一种通信设备，包括处理器、存储器和收发器。其中，存储器用于存储计算机程序，处理器用于调用并运行存储器中存储的计算机程序，并控制收发器收发信号，以使通信设备执行任意一个方法实施例中由第一节点执行的操作和/或处理。
本申请还提供一种通信设备，包括处理器、存储器和收发器。其中，存储器用于存储计算机程序，处理器用于调用并运行存储器中存储的计算机程序，并控制收发器收发信号，以使通信设备执行任意一个方法实施例中由第二节点执行的操作和/或处理。
此外，本申请还提供一种无线通信系统，包括本申请实施例中的第一节点和/或第二节点。
本申请实施例中的处理器可以是集成电路芯片，具有处理信号的能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application-specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。本申请实施例公开的方法的步骤可以直接体现为硬件编码处理器执行完成，或者用编码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DRRAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。其中，A、B以及C均可以为单数或者复数，不作限定。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (38)

  1. 一种通信方法，应用于第一节点，其特征在于，所述方法包括：
    在第一时间段内接收来自第一群组的至少一个第一数据包，所述第一群组包括多个第二节点；
    生成第一反馈信息，所述第一反馈信息为对应所述第一时间段、针对所述第一群组中任一个第二节点的反馈信息；
    发送所述第一反馈信息。
  2. 如权利要求1所述的方法，其特征在于，所述第一反馈信息通过1比特承载。
  3. 如权利要求1或2所述的方法，其特征在于，所述第一时间段为周期性的时间间隔。
  4. 如权利要求1至3中任一项所述的方法，其特征在于，所述方法还包括：
    向所述多个第二节点中的每个第二节点发送配置信息，所述配置信息用于指示第二时间段，所述第二时间段用于承载所述第一反馈信息。
  5. 如权利要求4所述的方法，其特征在于，所述配置信息用于指示所述第二节点属于所述第一群组。
  6. 如权利要求1至5中任一项所述的方法，其特征在于，所述生成第一反馈信息，包括：
    根据所述至少一个第一数据包中携带的数据标识信息，生成所述第一反馈信息。
  7. 如权利要求1至6中任一项所述的方法，其特征在于，
    若所述至少一个第一数据包全部接收成功，所述第一反馈信息用于指示接收正确；或者
    若所述至少一个第一数据包中存在至少一个数据包接收失败，所述第一反馈信息用于指示接收错误。
  8. 如权利要求7所述的方法，其特征在于，所述第一数据包接收成功为：正确解码所述第一数据包，且所述第一数据包的序列号SN等于第一节点的期望序列号NESN。
  9. 如权利要求7所述的方法，其特征在于，所述第一数据包接收失败为：正确解码所述第一数据包，且所述第一数据包的序列号SN不等于第一节点的期望序列号NESN；或者所述第一数据包解码错误；或者未接收到所述第一数据包。
  10. 如权利要求8或9所述的方法，其特征在于，所述方法还包括：
    若所述第一反馈信息用于指示接收正确，改变所述NESN的值；或者
    若所述第一反馈信息用于指示接收错误，保持所述NESN的值不变。
  11. 如权利要求7至10中任一项所述的方法，其特征在于，所述方法还包括：
    若所述第一反馈信息指示接收错误，再次接收来自所述第一群组的所述至少一个第一数据包；或者
    若所述第一组反馈信息指示接收正确，接收来自所述第一群组的至少一个第二数据包，其中，所述第二数据包与所述第一数据包不同。
  12. 如权利要求1至11中任一项所述的方法，其特征在于，所述方法还包括：
    向所述第二节点发送第二信息，所述第二信息用于指示所述第二节点退出所述第一群 组或者所述第二节点属于第二群组或者所述第二节点工作于不同于第一模式的第二模式，所述第一模式为所述第一群组的工作模式。
  13. 如权利要求1至12中任一项所述的方法，其特征在于，所述方法还包括：
    向所述第二节点发送第三信息，所述第三信息用于指示第三时间段，所述第三时间段用于所述第二节点向所述第一节点发送所述第一数据包，所述第三时间段包含于所述第一时间段。
  14. 一种通信方法，应用于第二节点，其特征在于，所述方法包括：
    在第三时间段内发送第一数据包；
    接收第一反馈信息，所述第一反馈信息为对应第一时间段、针对所述第二节点所属的第一群组中的任一个第二节点的反馈信息，所述第三时间段包含于所述第一时间段。
  15. 如权利要求14所述的方法，其特征在于，所述第一反馈信息通过1比特承载。
  16. 如权利要求14或15所述的方法，其特征在于，所述第一时间段为周期性的时间间隔。
  17. 如权利要求14至16中任一项所述的方法，其特征在于，所述方法还包括：
    接收配置信息，所述配置信息用于指示第二时间段，所述第二时间段用于承载所述第一反馈信息。
  18. 如权利要求17所述的方法，其特征在于，所述配置信息用于指示所述第二节点属于所述第一群组。
  19. 如权利要求14至18中任一项所述的方法，其特征在于，所述第一数据包中携带有数据标识信息，所述第一反馈信息是根据所述数据标识信息生成的。
  20. 如权利要求14至19中任一项所述的方法，其特征在于，所述方法还包括：
    若所述第一反馈信息指示接收错误，再次发送所述第一数据包；或者
    若所述第一反馈信息指示接收正确，发送第二数据包，其中，所述第二数据包与所述第一数据包不同。
  21. 如权利要求20所述的方法，其特征在于，所述第一反馈信息包括期望序列号NESN，当所述NESN与所述第一数据包的序列号SN相等时，所述第一反馈信息指示接收错误；
    当所述NESN与所述第一数据包的SN不相等时，所述第一反馈信息指示接收正确。
  22. 如权利要求21所述的方法，其特征在于，所述方法还包括：
    若所述第一反馈信息指示接收错误，保持所述第二节点维护的所述SN的值不变；或者
    若所述第一反馈信息指示接收正确，改变所述第二节点维护的所述SN的值。
  23. 如权利要求14至22中任一项所述的方法，其特征在于，所述方法还包括：
    接收第二信息，所述第二信息用于指示所述第二节点退出所述第一群组或者所述第二节点属于第二群组或者所述第二节点工作于不同于第一模式的第二模式，所述第一模式为所述第一群组的工作模式。
  24. 如权利要求14至23中任一项所述的方法，其特征在于，所述方法还包括：
    接收第三信息，所述第三信息用于指示所述第三时间段。
  25. 一种通信装置，其特征在于，包括：
    收发单元，用于在第一时间段内接收来自第一群组的至少一个第一数据包，所述第一 群组包括多个第二节点；
    处理单元，用于生成第一反馈信息，所述第一反馈信息为对应所述第一时间段、针对所述第一群组中任一个第二节点的反馈信息；
    所述收发单元还用于，发送所述第一反馈信息。
  26. 如权利要求25所述的装置，其特征在于，所述第一反馈信息通过1比特承载。
  27. 如权利要求25或26所述的装置，其特征在于，
    若所述至少一个第一数据包全部接收成功，所述第一反馈信息用于指示接收正确；或者
    若所述至少一个第一数据包中存在至少一个数据包接收失败，所述第一反馈信息用于指示接收错误。
  28. 如权利要求27所述的装置，其特征在于，所述第一数据包接收成功为：正确解码所述第一数据包，且所述第一数据包的序列号SN等于第一节点的期望序列号NESN。
  29. 如权利要求28所述的装置，其特征在于，所述第一数据包接收失败为：正确解码所述第一数据包，且所述第一数据包的序列号SN不等于第一节点的期望序列号NESN；或者所述第一数据包解码错误；或者未接收到所述第一数据包。
  30. 如权利要求28或29所述的装置，其特征在于，
    若所述第一反馈信息用于指示接收正确，所述处理单元用于，改变所述NESN的值；或者
    若所述第一反馈信息用于指示接收错误，所述处理单元用于，保持所述NESN的值不变。
  31. 一种通信装置，其特征在于，包括：
    发送单元，用于在第三时间段内发送第一数据包；
    接收单元，用于接收第一反馈信息，所述第一反馈信息为对应第一时间段、针对所述第二节点所属的第一群组中的任一个第二节点的反馈信息，所述第三时间段包含于所述第一时间段。
  32. 如权利要求31所述的装置，其特征在于，所述第一反馈信息通过1比特承载。
  33. 如权利要求31或32所述的装置，其特征在于，所述发送单元还用于：
    若所述第一反馈信息指示接收错误，再次发送所述第一数据包；或者
    若所述第一反馈信息指示接收正确，发送第二数据包，其中，所述第二数据包与所述第一数据包不同。
  34. 如权利要求33所述的装置，其特征在于，所述第一反馈信息包括期望序列号NESN，当所述NESN与所述第一数据包的序列号SN相等时，所述第一反馈信息指示接收错误；或者
    当所述NESN与所述第一数据包的SN不相等时，所述第一反馈信息指示接收正确。
  35. 如权利要求34所述的装置，其特征在于，所述装置还包括处理单元，
    若所述第一反馈信息指示接收错误，所述处理单元，用于保持所述第二节点维护的所述SN的值不变；或者
    若所述第一反馈信息指示接收正确，所述处理单元用于，改变所述第二节点维护的所述SN的值。
  36. 一种芯片，其特征在于，包括：至少一个处理器和通信接口，所述通信接口用于接收输入所述芯片的信号或用于从所述芯片输出信号，所述处理器与所述通信接口通信且通过逻辑电路或执行代码指令用于实现如权利要求1至13中任一项或者如权利要求14至24中任一项所述的方法。
  37. 一种计算机可读存储介质，其特征在于，其上存储有计算机程序，所述计算机程序被通信装置执行时，使得所述通信装置执行如权利要求1至13中任一项所述的方法，或，使得所述通信装置执行如权利要求14至24中任一项所述的方法。
  38. 一种终端设备，其特征在于，包括如权利要求25至30中任一项或者如权利要求31至35中任一项所述的通信装置。
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Citations (4)

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Publication number Priority date Publication date Assignee Title
CN104868979A (zh) * 2014-01-17 2015-08-26 财团法人工业技术研究院 数据传输方法、装置及其系统
US20200053744A1 (en) * 2018-08-10 2020-02-13 Qualcomm Incorporated Group signaling for ultra-reliable low-latency communications
WO2020259611A1 (zh) * 2019-06-28 2020-12-30 华为技术有限公司 一种通信方法、装置及存储介质
CN112702700A (zh) * 2019-10-23 2021-04-23 华为技术有限公司 一种资源配置的方法及装置

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Publication number Priority date Publication date Assignee Title
CN104868979A (zh) * 2014-01-17 2015-08-26 财团法人工业技术研究院 数据传输方法、装置及其系统
US20200053744A1 (en) * 2018-08-10 2020-02-13 Qualcomm Incorporated Group signaling for ultra-reliable low-latency communications
WO2020259611A1 (zh) * 2019-06-28 2020-12-30 华为技术有限公司 一种通信方法、装置及存储介质
CN112702700A (zh) * 2019-10-23 2021-04-23 华为技术有限公司 一种资源配置的方法及装置

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