WO2023151464A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2023151464A1
WO2023151464A1 PCT/CN2023/072867 CN2023072867W WO2023151464A1 WO 2023151464 A1 WO2023151464 A1 WO 2023151464A1 CN 2023072867 W CN2023072867 W CN 2023072867W WO 2023151464 A1 WO2023151464 A1 WO 2023151464A1
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WIPO (PCT)
Prior art keywords
information
harq processes
feedback
maximum number
supported
Prior art date
Application number
PCT/CN2023/072867
Other languages
English (en)
French (fr)
Inventor
张海森
许斌
郑黎丽
白仲金
李延冰
Original Assignee
华为技术有限公司
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Publication of WO2023151464A1 publication Critical patent/WO2023151464A1/zh

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Classifications

    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0889—Techniques to speed-up the configuration process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present application relates to the technical field of communication, and in particular to a communication method and device.
  • Hybrid automatic repeat request is a method to ensure the reliability of data transmission.
  • HARQ transmission can be processed in parallel by multiple HARQ processes.
  • the sender can use another HARQ process to continue sending information.
  • the receiver processes information received by a HARQ process, it can use another HARQ process. The process continues to receive messages.
  • the terminal device will report the maximum number of HARQ processes supported to the network device.
  • the network device configures the HARQ process for the terminal device according to the maximum number of HARQ processes reported by the terminal device. For example, when the terminal device reports that it supports 32 HARQ processes, the network device can Configure 32 HARQ processes with feedback for the terminal equipment. Therefore, there are limitations for terminal devices that want to support more processes for some services, but do not have enough space or poor performance to fully support HARQ processes with feedback. These terminal devices can only Fewer maximum supported HARQ processes are reported, so the number of configured HARQ processes is less, which leads to poor HARQ transmission performance.
  • the present application provides a communication method and device for improving HARQ transmission performance.
  • the present application provides a communication method, and the execution subject of the method may be a terminal device, or may be a chip or a circuit or other components for implementing functions of the terminal device.
  • the method includes: sending first information to a network device, the first information indicating the supported or expected maximum number of HARQ processes with feedback; and receiving second information from the network device, the second information is used to configure n HARQ processes with feedback process, n is an integer greater than 0, and n is less than or equal to the number of HARQ processes indicated by the first information.
  • the network device by indicating the supported or expected maximum number of HARQ processes with feedback to the network device, the network device can be assisted to reasonably configure the HARQ process for the terminal device, so as to prevent the number of HARQ processes with feedback configured by the network device from exceeding that of the terminal device. Buffer space or performance, improve the rationality of network equipment configuration HARQ process.
  • the terminal device can use more HARQ processes for services under the constraints of its own performance or buffer space, so as to improve transmission performance.
  • sending the first information to the network device includes: sending capability information to the network device, where the capability information carries the first information, or sending auxiliary information to the network device, where the auxiliary information carries the first information.
  • the above design reports the supported or expected maximum number of HARQ processes with feedback through capability information or auxiliary information, so that the number of HARQ processes with feedback configured by the network device does not exceed the capability of the terminal device.
  • sending the first information to the network device includes: if a trigger condition is met, sending the first information to the network device; or, receiving a request message from the network device, sending the first information to the network device, requesting The message is used to request first information.
  • the terminal device reports the first information through a trigger mechanism or a request mechanism, which can save signaling overhead.
  • the trigger condition is met according to at least one of the following: occupancy of the first buffer space, the number of HARQ processes configured to have feedback, or the number of HARQ processes configured to have no feedback, the first buffer space For HARQ process with feedback.
  • the network device can configure the HARQ process for the terminal device under the restriction of the terminal device.
  • the trigger condition includes at least one of the following: the usage of the first buffer space exceeds the first threshold, or the unused amount of the first buffer space is less than the second threshold; configured as a HARQ process with feedback The ratio of the number to the number of first HARQ processes exceeds the third threshold, or, the ratio of the number of HARQ processes configured to have no feedback to the total number of first HARQ processes is lower than the fourth threshold; the number of HARQ processes configured to have feedback changes , or, the change amount of the HARQ process configured to have feedback exceeds the fifth threshold.
  • the above design can enable the network device to configure the HARQ process for the terminal device under the constraints of the terminal device, and in this way can improve the accuracy and accuracy of the indication. flexibility.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information is the supported or expected maximum number of HARQ processes with feedback; or, the first information indicates the supported or expected maximum number of HARQ processes with feedback; The ratio of the expected maximum number of HARQ processes with feedback to the maximum number of supported HARQ processes; or, the first information indicates the size of the first buffer space, and the first buffer space is used for the HARQ processes with feedback. In this manner, flexible reporting of the supported or expected maximum number of HARQ processes with feedback can be achieved.
  • the first information indicates the ratio of the supported or expected maximum number of HARQ processes with feedback to the supported maximum number of HARQ processes, including: the first information indicates that the supported or expected maximum number of HARQ processes with feedback accounts for The index corresponding to the proportion of the maximum number of supported HARQ processes. Indicating the proportion of the supported or expected maximum number of HARQ processes with feedback to the maximum supported number of HARQ processes by reporting an index can save signaling overhead.
  • the method further includes: sending third information and/or fourth information to the network device, the third information indicates the maximum number of HARQ processes supported, and the fourth information indicates the supported or expected maximum HARQ process without feedback number.
  • the above method can send the third information and the fourth information, so that the network device can determine the maximum number of HARQ processes with feedback supported or expected by the terminal device, the maximum number of HARQ processes supported or expected without feedback, and the maximum number of HARQ processes supported , which is beneficial to the rationality of configuring the HARQ process on the network device.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information includes third information and fourth information, the third information indicates the maximum number of HARQ processes supported, and the first Four information indicates the supported or expected maximum number of HARQ processes without feedback.
  • the above method can use the third information and the fourth information to implicitly indicate the maximum number of HARQ processes with feedback that the terminal device supports or expects, and can enable the network device to determine that the terminal device supports or expects the maximum number of HARQ processes with feedback under the premise of reducing signaling overhead.
  • the maximum number of HARQ processes that are fed back, the maximum number of HARQ processes that are supported or expected without feedback, and the maximum number of supported HARQ processes are beneficial to the rationality of configuring the HARQ process on a network device.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information indicates the maximum number of HARQ processes with feedback respectively corresponding to at least one cell; or, The first information indicates the maximum number of HARQ processes with feedback corresponding to at least one frequency band; or, the first information indicates the maximum number of HARQ processes with feedback respectively corresponding to at least one frequency band combination.
  • the present application provides a communication method, and the execution subject of the method may be a network device, or may be a chip or a circuit.
  • the method includes: receiving first information from a terminal device, the first information indicating the supported or expected maximum number of HARQ processes with feedback, and sending second information to the terminal device, the second information is used to configure n HARQ processes with feedback , n is an integer greater than 0, and n is less than or equal to the number of HARQ processes indicated by the first information.
  • the network device can be assisted to reasonably configure the HARQ process for the terminal device, so as to prevent the number of HARQ processes with feedback configured by the network device from exceeding that of the terminal device. Buffer space or performance.
  • the terminal device can report more HARQ processes for business under the constraints of its own performance or buffer space, so as to improve transmission performance.
  • receiving the first information from the terminal device includes: receiving capability information from the terminal device, where the capability information carries the first information; or receiving auxiliary information from the terminal device, where the auxiliary information carries the first information.
  • the above design obtains the maximum number of HARQ processes with feedback supported or expected by the terminal device through capability information or auxiliary information, so that the number of HARQ processes with feedback configured by the network device does not exceed the capability of the terminal device.
  • the method further includes: sending a request message to the terminal device, where the request message is used to request the first information.
  • signaling overhead can be saved by instructing the terminal device to report the first information through the request mechanism.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, including: the first information is the supported or expected maximum number of HARQ processes with feedback; or, the first information is the supported or expected maximum number of HARQ processes with feedback; The ratio of the maximum number of HARQ processes with feedback to the maximum number of supported HARQ processes; or, the first information is the size of the first buffer space, and the first buffer space is used for the HARQ processes with feedback. In this manner, flexible reporting of the supported or expected maximum number of HARQ processes with feedback can be achieved.
  • the first information indicates the ratio of the supported or expected maximum number of HARQ processes with feedback to the supported maximum number of HARQ processes, including: the first information indicates that the supported or expected maximum number of HARQ processes with feedback accounts for The index corresponding to the proportion of the maximum number of supported HARQ processes. Indicating the proportion of the supported or expected maximum number of HARQ processes with feedback to the maximum supported number of HARQ processes by reporting an index can save signaling overhead.
  • the method further includes: receiving third information and/or fourth information from the terminal device, the third information indicating the maximum number of HARQ processes supported, and the fourth information indicating the supported or expected maximum HARQ process number without feedback number of processes.
  • the above method can send the third information and the fourth information, so that the network device can determine the maximum number of HARQ processes with feedback supported or expected by the terminal device, the maximum number of HARQ processes supported or expected without feedback, and the maximum number of HARQ processes supported , which is beneficial to the rationality of configuring the HARQ process on the network device.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information includes third information and fourth information, the third information indicates the maximum number of HARQ processes supported, and the first Four information indicates the supported or expected maximum number of HARQ processes without feedback.
  • the above method can use the third information and the fourth information to implicitly indicate the maximum number of HARQ processes with feedback that the terminal device supports or expects, and can enable the network device to determine that the terminal device supports or expects the maximum number of HARQ processes with feedback under the premise of reducing signaling overhead.
  • the maximum number of HARQ processes that are fed back, the maximum number of HARQ processes that are supported or expected without feedback, and the maximum number of supported HARQ processes are beneficial to the rationality of configuring the HARQ process on a network device.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information indicates the maximum number of HARQ processes with feedback corresponding to at least one cell; or, the first information indicates The maximum number of HARQ processes with feedback corresponding to at least one frequency band; or, the first information indicates the maximum number of HARQ processes with feedback respectively corresponding to at least one frequency band combination.
  • the present application provides a communication method, and the execution body of the method may be a terminal device, or may be a chip or a circuit or other components for realizing functions of the terminal device.
  • the method includes: sending capability information to the network device, where the capability information indicates the maximum number of HARQ processes M supported, and M is an integer greater than 0; and receiving configuration information from the network device, the configuration information is used to configure N HARQ processes with feedback and K HARQ processes without feedback, N is an integer greater than 0 and less than M, K is an integer greater than 0, and the sum of N and K is greater than M.
  • the embodiment of the present application can implement multiple HARQ processes without feedback without modifying the capability reporting mechanism of the terminal device, so that the number of HARQ processes can be expanded, and the number of HARQ processes with feedback configured by the network device can be prevented from exceeding that of the terminal device. ability to improve transmission performance.
  • data transmission may be performed based on N HARQ processes with feedback and K HARQ processes without feedback.
  • N HARQ processes with feedback
  • K HARQ processes without feedback
  • the network device can configure more HARQ processes for the terminal device without exceeding the capacity of the terminal device.
  • the present application provides a communication method, and the execution body of the method may be a network device, or may be a chip or a circuit.
  • the method includes: receiving capability information from a terminal device, the capability information indicating the maximum number of Hybrid Automatic Repeat Request HARQ processes M supported, where M is an integer greater than 0; and sending configuration information to the terminal device, the configuration information is used to configure N A HARQ process with feedback and K HARQ processes without feedback, N is an integer greater than 0 and less than M, K is an integer greater than 0, and the sum of N and K is greater than M.
  • the embodiment of the present application can implement multiple HARQ processes without feedback without modifying the capability reporting mechanism of the terminal device, so that the number of HARQ processes can be expanded, and the number of HARQ processes with feedback configured by the network device can be prevented from exceeding that of the terminal device. ability to improve transmission performance.
  • the configuration information indicates at least two HARQ processes sharing the first buffer space among the K non-feedback HARQ processes.
  • the present application further provides a communication device, where the communication device implements any method provided in the first aspect or the third aspect.
  • the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device includes: a processor, where the processor is configured to support the communication device to perform corresponding functions of the terminal device in the methods shown above.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication device further includes an interface circuit, where the interface circuit is used to support communication between the communication device and equipment such as network equipment.
  • the communication device includes corresponding functional modules, respectively configured to implement the steps in the above method.
  • the functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware.
  • Hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the structure of the communication device includes a processing module and a communication module, and these modules can perform Perform corresponding functions in the above method example, for details, refer to the description in the method provided in the first aspect or the third aspect, and details are not repeated here.
  • the present application further provides a communication device, where the communication device implements any method provided in the second aspect or the fourth aspect.
  • the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device includes: a processor, where the processor is configured to support the communication device to perform corresponding functions of the network device in the methods shown above.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication device further includes an interface circuit, where the interface circuit is used to support communication between the communication device and devices such as terminal equipment.
  • the communication device includes corresponding functional modules, respectively configured to implement the steps in the above method.
  • the functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware.
  • Hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the structure of the communication device includes a processing module and a communication module, and these modules can perform corresponding functions in the above-mentioned method example.
  • a processing module and a communication module, and these modules can perform corresponding functions in the above-mentioned method example.
  • these modules can perform corresponding functions in the above-mentioned method example.
  • Do repeat refer to the description in the method provided in the second aspect or the fourth aspect, and here Do repeat.
  • a communication device including a processor and an interface circuit, and the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor
  • the processor is used to implement the method in the aforementioned first aspect or third aspect and any possible design through a logic circuit or executing code instructions.
  • a communication device including a processor and an interface circuit, and the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor
  • the processor is used to implement the method in the aforementioned second aspect or fourth aspect and any possible design through a logic circuit or executing code instructions.
  • a ninth aspect provides a computer-readable storage medium, in which a computer program or an instruction is stored, and when the computer program or instruction is executed by a processor, the aforementioned first aspect to the fourth aspect are implemented. method in any aspect and in any possible design.
  • a computer program product storing instructions, and when the instructions are executed by a processor, the method in any one of the aforementioned first to fourth aspects and any possible design is implemented.
  • a chip system in an eleventh aspect, includes a processor and may further include a memory for implementing any one of the aforementioned first to fourth aspects and any possible design method.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • a twelfth aspect provides a communication system, where the system includes the device (such as a terminal device) described in the first aspect and the device (such as a network device) described in the second aspect.
  • the system includes the device described in the third aspect (such as a terminal device) and the device described in the fourth aspect (such as a network device).
  • FIG. 1 is a schematic diagram of a HARQ process transmission according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of multi-HARQ process transmission according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a HARQ process configuration according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a HARQ process configuration according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a HARQ process configuration according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a HARQ process configuration according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a HARQ process configuration according to an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • NTN Non-terrestrial networks
  • NTN introduces non-ground communication equipment such as aircraft/drones and other aircraft or satellites into the communication system as relay nodes or access network equipment.
  • non-ground communication equipment such as aircraft/drones and other aircraft or satellites into the communication system as relay nodes or access network equipment.
  • RTT round-trip time
  • the HARQ mechanism uses the forward error correction (FEC) algorithm to encode the channel, that is, to add redundant information with certain error detection and error correction capabilities to the transmitted information.
  • FEC forward error correction
  • the receiver decodes the received signal according to the corresponding reverse algorithm, and after finding an error, it tries its best to correct the error. If it can be corrected, the data transmission is successful, and the receiver will send a positive acknowledgment (acknowledgment, ACK) To the sender, after receiving the ACK, the sender will send the next data packet. If it cannot be corrected, then use the HARQ mechanism and send a negative acknowledgment (negative acknowledgment, NACK) to the sender to notify the sender to retransmit. After receiving the NACK, the sender will resend the same data. As shown in Figure 1.
  • NACK negative acknowledgment
  • the delay in retransmitting data from network devices to terminal devices is relatively large.
  • the process can be configured as a HARQ process without feedback. Therefore, the current HARQ mechanism can include the HARQ mechanism without feedback and the HARQ mechanism with feedback, that is, the HARQ process can include the HARQ process without feedback and the HARQ process with feedback. process.
  • the HARQ process without feedback only performs error correction processing after receiving the data, and submits it if the transmission is successful.
  • the HARQ process does not retransmit.
  • the HARQ process with feedback is a timer that waits for retransmission after receiving a NACK feedback to the sender if the error correction fails after receiving data, that is, the HARQ process with feedback has a retransmission mechanism.
  • the HARQ process with feedback may also be referred to as "HARQ process supporting feedback”, “HARQ process enabling feedback”, “HARQ process capable of feedback”, “HARQ process capable of retransmission”, “”HARQ process with retransmission”, “HARQ process supporting retransmission”, or “HARQ process with retransmission enabled”, etc., may also be referred to as a HARQ process in state A.
  • the HARQ process without feedback can also be called “HARQ process without feedback”, “HARQ process without feedback support”, “HARQ process without feedback enabled”, “HARQ process without feedback”, “ Retransmission HARQ process”, “HARQ process without retransmission”, “HARQ process without retransmission support”, or “HARQ process without retransmission enabled”, etc., may also be referred to as a HARQ process in state B.
  • the HARQ mechanism can use multiple processes to process in parallel. When one process is waiting for confirmation, the sender can use another process to continue sending information. Similarly, when the receiver processes the information received by one process, it can use another process to continue receiving information. as shown in picture 2.
  • the terminal device can report the maximum number of HARQ processes supported, such as 16 or 32. Then the network device configures the HARQ process configuration for the terminal device through radio resource control (radio resource control, RRC) signaling, for example, the number of HARQ processes, and the type corresponding to each HARQ process (HARQ process with feedback or HARQ process without feedback) .
  • RRC radio resource control
  • the maximum number of processes only indicates the upper limit of the number of processes, and not all processes will be used.
  • Terminal equipment including equipment that provides voice and/or data connectivity to users, specifically, equipment that provides voice to users, or equipment that provides data connectivity to users, or equipment that provides voice and data connectivity to users sexual equipment. Examples may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (radio access network, RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • radio access network radio access network
  • the terminal equipment may include UE, wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle-to-everything (V2X) terminal equipment, machine-to-machine/machine-like Communication (machine-to-machine /machine-type communications, M2M/MTC) terminal equipment, Internet of things (internet of things, IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or User equipment (user device), etc.
  • IoT Internet of things
  • IoT Internet of things
  • IoT Internet of things
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • remote station remote station
  • access point access point
  • AP remote terminal
  • remote terminal remote terminal
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer built-in mobile devices, and the like.
  • PCS personal communication service
  • cordless telephone cordless telephone
  • session initiation protocol session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • constrained devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities, etc.
  • it includes barcodes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning system (global positioning system, GPS), laser scanners and other information sensing devices.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc., which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes wait.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may further include a relay (relay).
  • a relay relay
  • all devices capable of performing data communication with the base station can be regarded as terminal devices.
  • the device used to realize the function of the terminal device may be a terminal device, or a device applied to the terminal device that can support the terminal device to realize the function, such as a component or component with a communication function, or a chip system , the device can be installed in the terminal equipment.
  • the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.
  • Network equipment including, for example, access network (access network, AN) equipment, such as a base station (eg, an access point), may refer to a device in an access network that communicates with a terminal device through one or more cells over an air interface.
  • Network equipment may include evolved base stations (NodeB or eNB or e-NodeB, evolutional Node B) in the LTE system or long term evolution-advanced (LTE-A), or may also include fifth-generation mobile communication technologies (the 5th generation, 5G) NR system (also referred to as NR system) in the next generation node B (next generation node B, gNB) or may also include the cloud access network (cloud radio access network, Cloud RAN) system
  • the centralized unit (centralized unit, CU) and/or the distributed unit (distributed unit, DU) are not limited in this embodiment of the present application.
  • the network device can be a CU in the Cloud RAN system, or a DU, or a whole of CU and
  • the network device may also include a core network device, and the core network device includes, for example, an access and mobility management function (access and mobility management function, AMF) and the like. Since the embodiments of the present application mainly relate to the access network, unless otherwise specified in the following, the network equipment mentioned refers to the access network equipment.
  • AMF access and mobility management function
  • the device for realizing the function of the network device may be a network device, or a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device.
  • the technical solution provided by the embodiment of the present application the technical solution provided by the embodiment of the present application is described by taking the network device as an example for realizing the function of the network device.
  • Multicast transmission technology or it can also be called multimedia broadcast multicast service (MBMS) technology, or it can also be called multicast transmission mode, or it can also be called multicast broadcast service (multicast and broadcast service).
  • MBS multimedia broadcast multicast service
  • service, MBS refers to the technology that a certain service sends data to multiple terminal devices at the same time through network devices.
  • a network device such as a base station
  • Sending by multicast means when a device sends a transport block (TB) corresponding to a protocol data unit (PDU), it uses a group radio network temporary identifier (group radio network) Temporary identifier, G-RNTI) scrambles the PDU, or scrambles the downlink control information (DCI) corresponding to the PDU, and one or more devices receive the same PDU according to the same G-RNTI ;
  • group radio network temporary identifier group radio network Temporary identifier, G-RNTI
  • G-RNTI group radio network temporary identifierary identifier
  • DCI downlink control information
  • adopting multicast mode to transmit PDU can refer to tell multiple devices the position of the same PDU in a semi-static manner, and multiple devices can receive the PDU at the same time; The transmission is carried out in the radio bearer established for broadcast transmission or in the channel specially designed for multicast transmission.
  • the radio bearer established for transmission receives or receives PDUs on the channel used for multicast transmission.
  • multicast is a specific manner of multicast, therefore, multicast may also be called multicast, broadcast, or MBS.
  • Sending by means of unicast transmission means when a certain device sends the TB corresponding to the PDU, it uses the cell network temporary identifier (C-RNTI) to scramble the PDU, Or scramble the DCI corresponding to the PDU, and at the same time only one device receives the same PDU according to the C-RNTI; or transmit the PDU in unicast mode, which means that the PDU is transmitted in the radio bearer established for Transmission is performed on a channel designed for unicast.
  • C-RNTI cell network temporary identifier
  • Using unicast transmission to receive means that when unicast transmission is used, the receiving device receives the PDU according to the C-RNTI; or the device receives the PDU through the radio bearer established for unicast transmission receive on the same channel as the broadcast transmission.
  • Sending and receiving by means of broadcast transmission means a certain device sends the TB corresponding to the PDU on the broadcast channel, and all receiving devices can receive the PDU on the broadcast channel.
  • “at least one” means one or more, and “multiple” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one item (piece) of a, b, or c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.
  • first and second are used to distinguish multiple objects, and are not used to limit the size, content, order, and timing of multiple objects , priority or importance, etc.
  • first information and the second information are only for distinguishing different information, but do not indicate the difference in content, priority or importance of the two information.
  • the network device can configure the HARQ process for the terminal device according to the maximum number of HARQ processes reported by the terminal device, for example, the number of HARQ processes, and the type corresponding to each HARQ process (HARQ process with feedback or HARQ process without feedback).
  • the number of HARQ processes with feedback configured by the network device cannot exceed the maximum number of HARQ processes reported by the terminal device.
  • the network device can configure up to 32 HARQ processes with feedback for the terminal device.
  • HARQ process there are limitations for terminal devices that want to support more processes for business, but do not have enough space or poor performance to fully support all HARQ processes configured with feedback, and can only report less The number of supported HARQ processes leads to poor HARQ transmission performance.
  • a terminal device supports 32 HARQ processes for services, but the space or performance of the terminal device can only support up to 16 HARQ processes with feedback.
  • the number of HARQ processes with feedback configured by the network device can exceed the terminal device Space or performance, so that the maximum number of HARQ processes supported by the terminal device can only be reported as 16, resulting in poor HARQ transmission performance.
  • embodiments of the present application provide a communication method and device for improving HARQ transmission performance.
  • the method and the device are based on the same idea, and since the principles of the method and the device to solve problems are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • the communication method provided in this application can be applied to various communication systems, for example, it can be Internet of things (internet of things, IoT), narrowband Internet of things (narrow band internet of things, NB-IoT), long term evolution (long term evolution) , LTE), it can also be the fifth generation (5G) communication system, it can also be a hybrid architecture of LTE and 5G, it can also be a 5G new radio (new radio, NR) system, and new communication emerging in 6G or future communication development system wait.
  • the communication system described in this application may also be a machine-to-machine (M2M) network, an NTN network or other networks.
  • M2M machine-to-machine
  • the communication system includes a network device and six terminal devices, that is, UE1-UE6.
  • UE1-UE6 can send uplink data to the network device, and the network device can receive the uplink data sent by UE1-UE6.
  • UE4-UE6 may also form a sub-communication system.
  • the network device can send downlink information to UE1, UE2, UE3, and UE5, and UE5 can send downlink information to UE4 and UE6 based on a device-to-device (device-to-device, D2D) technology.
  • FIG. 1 is only a schematic diagram, and does not specifically limit the type of the communication system, and the quantity and type of devices included in the communication system.
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
  • FIG. 4 it is a schematic flowchart of a communication method provided by the embodiment of the present application.
  • the terminal device sends first information to the network device.
  • the network device receives the first information.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback.
  • the first information may indicate the supported or expected maximum number of HARQ processes with feedback.
  • the network device can directly determine the maximum number of HARQ processes with feedback supported or expected by the terminal device.
  • the first information may explicitly indicate the supported or expected maximum number of HARQ processes with feedback, for example, if the supported or expected maximum number of HARQ processes with feedback is 16, then the first information indicates 16, If the supported or expected maximum number of HARQ processes with feedback is 22, the first information indicates 22.
  • the first information may also implicitly indicate the supported or expected maximum number of HARQ processes with feedback, for example, the first information may indicate different values through states of one or more flag bits.
  • the first information may indicate an index corresponding to the number of HARQ processes, and in this manner, signaling overhead may be saved.
  • the first information may also implicitly indicate the supported or expected maximum number of HARQ processes with feedback by indicating the size of the first buffer space.
  • the first buffer space is used for the HARQ process with feedback, and may also be understood as the buffer space reserved (or configured) by the terminal device for the HARQ process with feedback.
  • the first buffer space may also be the total buffer space of the terminal device, or the buffer space reserved by the terminal device for receiving downlink data, or the buffer reserved by the terminal device for media access control (media access control, MAC) layer processing space, or the buffer space reserved by the terminal equipment for the NTN service, or the buffer space for MAC layer processing reserved for the NTN service.
  • media access control media access control
  • the first information may also indicate the ratio of the supported or expected maximum number of HARQ processes with feedback to the supported maximum number of HARQ processes.
  • the first information may also indicate the size of the first cache space.
  • the first information may explicitly indicate the supported or expected maximum HARQ process with feedback The ratio of the number to the maximum supported HARQ process number, for example, if the supported or expected maximum HARQ process number with feedback accounts for 50% of the supported maximum HARQ process number, then the first information indicates 50%, if the supported or expected The maximum number of HARQ processes with feedback is 20%, then the first information indicates 20%.
  • the first information may also implicitly indicate the ratio of the supported or expected maximum number of HARQ processes with feedback to the supported maximum number of HARQ processes.
  • the first information may pass one or more flag bits The status of the indicates a different scale.
  • the first information may indicate an index corresponding to the ratio, and in this manner, signaling overhead may be saved.
  • the first information may further include third information and fourth information, where the third information indicates the maximum number of HARQ processes supported, and the fourth information indicates the supported or expected maximum number of HARQ processes without feedback.
  • the third information and the fourth information may implicitly indicate the maximum number of HARQ processes with feedback that the terminal device supports or expects.
  • the terminal device may also send the third information and/or the fourth information to the network device, where the third information and/or the fourth information are the same as the first information It may be sent through the same signaling, or may be sent through different signalings, which is not specifically limited here.
  • the terminal device may report the supported or expected maximum number of HARQ processes with feedback and the supported or expected maximum number of HARQ processes without feedback to the network device.
  • the network device can determine the maximum number of HARQ processes supported or expected by the terminal device according to the supported or expected maximum number of HARQ processes with feedback and the supported or expected maximum number of HARQ processes without feedback, that is, the supported or expected maximum number of HARQ processes Maximum total number of HARQ processes.
  • the terminal device can report to the network device that the supported or expected maximum number of HARQ processes with feedback is 10, and the supported or expected maximum number of HARQ processes without feedback is 10, then the network device can determine: the supported or expected maximum number of HARQ processes with feedback is 10.
  • the terminal device may report the supported or expected maximum number of HARQ processes with feedback and the supported or expected maximum number of HARQ processes (that is, the total number of HARQ processes) to the network device.
  • the network device may determine the maximum number of HARQ processes supported or expected by the terminal device without feedback according to the supported or expected maximum number of HARQ processes with feedback and the supported or expected maximum number of HARQ processes.
  • the terminal device may report the supported or expected maximum number of HARQ processes without feedback and the supported or expected maximum number of HARQ processes (that is, the total number of HARQ processes) to the network device.
  • the network device may determine the maximum number of HARQ processes with feedback supported or expected by the terminal device according to the supported or expected maximum number of HARQ processes without feedback and the supported or expected maximum number of HARQ processes.
  • the terminal device may report to the network device the supported or expected maximum number of HARQ processes with feedback, the supported or expected maximum number of HARQ processes without feedback, and the supported or expected maximum number of HARQ processes (that is, the HARQ process total).
  • the sum of the supported or expected maximum number of HARQ processes with feedback and the supported or expected maximum number of HARQ processes without feedback may be equal to the supported or expected maximum number of HARQ processes, or may not be equal to (such as greater than or equal to) the supported or expected maximum number of HARQ processes
  • the expected maximum number of HARQ processes is not limited here.
  • the terminal device may report to the network device that the supported or expected maximum number of HARQ processes with feedback is 10, the supported or expected maximum number of HARQ processes without feedback is 10, and the supported or expected maximum number of HARQ processes is 20.
  • the terminal device may report to the network device that the supported or expected maximum number of HARQ processes with feedback is 10, the supported or expected maximum number of HARQ processes without feedback is 15, and the supported or expected maximum number of HARQ processes is 20.
  • the terminal device may send the first information to the network device through the capability information, for example, the terminal device sends the capability information to the network device, where the capability information carries the first information.
  • the terminal device may send the first information to the network device through auxiliary information, for example, the terminal device sends the auxiliary information to the network device, where the auxiliary information carries the first information.
  • a specific implementation manner is that the terminal device may periodically report the first information.
  • the terminal device may send the first information to the network device when a trigger condition is met.
  • the terminal device may determine that the trigger condition is met according to at least one of the following: occupancy of the first buffer space, the number of HARQ processes configured to have feedback, or the number of HARQ processes configured to have no feedback.
  • the trigger condition may include at least one of the following conditions:
  • Condition 1 the first cache space is insufficient or limited.
  • the usage amount of the first cache space exceeds the first threshold, or, the unused amount of the first cache space is smaller than the second threshold;
  • the ratio of the number of HARQ processes configured to have feedback to the number of first HARQ processes exceeds a third threshold, or the ratio of the number of HARQ processes configured to have no feedback to the total number of first HARQ processes is lower than a fourth threshold, Or, the number of HARQ processes configured to have feedback exceeds a preset threshold, or other situations that may indicate that the number of HARQ processes configured to have feedback is large, which will not be listed here.
  • the first number of HARQ processes may be the total number of HARQ processes configured by the network device, or the first number of HARQ processes is the maximum number of HARQ processes supported by the terminal device, or the first number of HARQ processes is the maximum number of HARQ processes supported by the terminal device with feedback Number of HARQ processes.
  • Condition 3 the number of HARQ processes configured to have feedback changes, or the amount of change of HARQ processes configured to have feedback exceeds a fifth threshold.
  • the change in the number of HARQ processes configured to have feedback may be an increase in the number of HARQ processes configured to have feedback, or a decrease in the number of HARQ processes configured to have feedback.
  • the terminal device may send the first information to the network device after receiving the request message from the network device, and the request message is used to request the first information a message.
  • the terminal device may send capability information and auxiliary information to the network device, where the capability information carries the first information, and the auxiliary information also carries the first information.
  • the first information carried in the capability information and the first information carried in the auxiliary information may be the same or different.
  • the network device sends the second information to the terminal device.
  • the terminal device receives the second information from the network device.
  • the second information is used to configure n HARQ processes with feedback, n is an integer greater than 0, and n is less than or equal to the number of HARQ processes indicated by the first information, that is, the value of n does not exceed the HARQ process indicated by the first information. number of processes.
  • the second information may configure H HARQ processes and states of the H HARQ processes (that is, HARQ processes with feedback or HARQ processes without feedback).
  • H HARQ processes are configured as HARQ processes with feedback
  • H is an integer greater than n
  • the value of H is not greater than the maximum number of HARQ processes supported by the terminal device.
  • the terminal device may configure a HARQ process according to the second information, and perform services through the HARQ process configured by the second information, such as receiving data and/or sending data.
  • the terminal device For a HARQ process with feedback, if the terminal device receives a data decoding error in the HARQ process, it buffers the data in a buffer space corresponding to the HARQ process and waits for retransmission.
  • the terminal device For the HARQ process without feedback, if the terminal device receives data decoding error in the HARQ process, it discards the data.
  • the first information may indicate at least one of the following items: the maximum number of HARQ processes with feedback corresponding to at least one cell, the maximum number of HARQ processes with feedback corresponding to at least one frequency band, and each frequency band combination in the T frequency band combinations
  • T is an integer greater than 0 .
  • the network device can be assisted to reasonably configure the HARQ process for the terminal device, so as to prevent the number of HARQ processes with feedback configured by the network device from exceeding that of the terminal device. Buffer space or performance.
  • the terminal device can report more supported HARQ process numbers for services to improve transmission performance under the constraints of its own performance or buffer space.
  • the terminal device supports up to 16 HARQ processes with Feedback HARQ process.
  • the terminal equipment if the number of HARQ processes reported by the terminal equipment is higher than 16, the network equipment may all be configured as HARQ processes with feedback, which is beyond the capability of the terminal equipment. Therefore, according to the existing technology, the terminal equipment can at most Report 16 HARQ processes.
  • the maximum number of supported HARQ processes with feedback reported to the network device for example, 16.
  • the network device receives this information, it will configure a maximum of 16 HARQ processes with feedback for the terminal device. Since the HARQ process without feedback does not require buffer space, even if the terminal device reports the number of HARQ processes higher than 16, the network device can at most Configure 16 HARQ processes with feedback for the terminal device, so that the terminal device can report more HARQ processes and improve transmission performance under the premise of avoiding exceeding the capability of the terminal device.
  • FIG. 6 it is a schematic flowchart of another communication method provided by the embodiment of the present application.
  • the terminal device sends capability information to the network device.
  • the network device receives the capability information from the terminal device.
  • the capability information indicates the supported maximum number of HARQ processes M, where M is an integer greater than 0.
  • the network device sends configuration information to the terminal device.
  • the terminal device receives configuration information from the network device.
  • the configuration information is used to configure N HARQ processes with feedback and K HARQ processes without feedback, N is an integer greater than 0 and less than M, K is an integer greater than 0, and the sum of N and K is greater than M.
  • the configuration information may also indicate buffer spaces corresponding to at least two HARQ processes in the shared first buffer space among the K non-feedback HARQ processes.
  • the network device may also indicate the HARQ process identifier corresponding to the shared buffer space.
  • the terminal device includes 16 cache spaces
  • the first cache space is divided into 16 cache spaces, where the first cache space can refer to the relevant description of the first cache space in the method shown in FIG. 4 , The description will not be repeated here.
  • one HARQ process with feedback may correspond to one buffer space.
  • the maximum number of HARQ processes reported by the terminal device is 16, that is, M is 16.
  • the three HARQ processes without feedback can share a buffer space, as shown in FIG. 7 .
  • the maximum number of HARQ processes reported by the terminal device is 16, that is, M is 16.
  • the cache space corresponding to one HARQ process is, for example, as shown in FIG. 9 .
  • the three HARQ processes share the cache space corresponding to one HARQ process among the remaining four HARQ processes, as shown in FIG. 10 , for example.
  • the terminal device may configure a HARQ process according to the configuration information, and receive data through the HARQ process configured by the configuration information. Specifically, after receiving the configuration information, the terminal device can configure N HARQ processes with feedback and K HARQ processes without feedback, and perform data transmission based on the N HARQ processes with feedback and K HARQ processes without feedback.
  • the embodiment of the present application can implement multiple HARQ processes without feedback without modifying the capability reporting mechanism of the terminal device, so that the number of HARQ processes can be expanded, and the number of HARQ processes with feedback configured by the network device can be prevented from exceeding that of the terminal device. ability to improve transmission performance.
  • Another communication method for improving HARQ transmission performance is introduced above. Another communication method is introduced below, which enables the network device to configure the unicast service and/or multicast service within the maximum capacity of the terminal device.
  • the terminal device may support receiving broadcast and multicast services while performing unicast operations, and at this time, the unicast and broadcast and multicast services share the baseband capability of the terminal device.
  • a terminal device may receive a multicast service from a first network device, and receive a unicast service from a second network device, where the first network device and the second network device may belong to the same operator or may belong to different operators.
  • the communication method includes:
  • the terminal device sends indication information to the second network device.
  • the second network device receives the indication information from the terminal device.
  • the terminal device performs a multicast service with the first network device, and the terminal device performs a unicast service with the second network device.
  • the indication information is used to indicate the resource used by the terminal device to receive the multicast service or the ability to support the reception of the multicast service.
  • the indication information may be used to indicate at least one of the following:
  • QoS quality of service
  • the number of rate matching patterns used by the terminal device to receive the multicast service is the number of rate matching patterns used by the terminal device to receive the multicast service.
  • the rate matching pattern is the pattern used to configure the rate matching parameters when the network device configures the physical downlink shared channel (PDSCH) for the terminal device. All services need to be within the maximum number limit, such as 4.
  • indication information may also indicate other parameters when the terminal device receives the multicast service, which will not be listed here.
  • the aforementioned parameters such as the number of HARQ processes and the number of QoS flows may be at the terminal equipment level, or at the service level, or at the cell level, or at the cell group level.
  • the ability to support receiving multicast services can be understood as the ability of a terminal device to receive multicast services alone, and/or the ability of a terminal device to support receiving multicast services when receiving unicast services and multicast services simultaneously.
  • the resource used by the terminal device to receive the multicast service can be understood as the resource used by the terminal device receiving the multicast service; or, it can be understood as the resource occupied by the terminal device when it wants to receive the multicast service; or, it can be It is understood that the terminal device supports receiving resources planned for multicast services.
  • the terminal device can send instruction information in the following ways:
  • the indication information may be included in MBS interest indicator (MBS interest indicator, MII) signaling.
  • MBS interest indicator MBS interest indicator, MII
  • the terminal device may send indication information independently.
  • the indication information may be included in UE assistance information (UE assistance information) signaling.
  • the indication information may be included in UE Capability Information (UECapabilityInformation) signaling.
  • UECapabilityInformation UE CapabilityInformation
  • the embodiment of the present application does not limit the resource used by the terminal device to send and receive the multicast service or the way to support the ability to receive the multicast service. Fall into the scope of protection of this application.
  • the second network device configures unicast service resources according to the indication information.
  • the indication information indicates that the number of HARQ processes used by the terminal device to receive the multicast service is R1, the maximum number of HARQ processes reported by the terminal device is R2, and the second network device configures a maximum of (R2-R1) HARQ processes for the terminal device. Processes are used for unicast services.
  • the indication information indicates the number of QoS flows used by the terminal device to receive multicast services, and then the second network configures the terminal device for a single Number of QoS flows for broadcast services.
  • the maximum number of QoS flows supported by the terminal device may be reported by the terminal device or specified by a protocol.
  • the indication information indicates the number of MBS sessions used by the terminal device for receiving multicast services
  • the second network configures the terminal device for unicast according to the maximum number of MBS sessions supported by the terminal device and the number of MBS sessions used for receiving multicast services.
  • the maximum number of MBS sessions supported by the terminal device may be reported by the terminal device or specified by a protocol.
  • the indication information indicates the number of rate matching patterns used by the terminal device to receive the multicast service
  • the second network configures the terminal device according to the maximum number of rate matching patterns supported by the terminal device and the number of rate matching patterns used for receiving the multicast service.
  • the maximum number of rate matching patterns supported by the terminal device may be reported by the terminal device or specified by a protocol.
  • the terminal device indicates the relevant parameters of the multicast service to the second network device as an example.
  • the terminal device may also indicate the relevant parameters of the unicast service to the first network device, so that The first network device may configure multicast service resources according to the indication information.
  • the relevant parameters of the unicast service are similar to the relevant parameters of the multicast service. For details, refer to the relevant description of S1101 above, and details will not be repeated here.
  • the embodiment in which the terminal device indicates the relevant parameters of the multicast service to the second network device and the embodiment in which the terminal device indicates the relevant parameters of the unicast service to the first network device can be implemented separately as a solution, or can be combined as a solution.
  • a scheme is implemented, and no specific limitation is made here.
  • the network device corresponding to the unicast service (that is, the second network device) provides the unicast service for the terminal device within the capability range of the terminal device, so that the network device corresponding to the multicast service ( That is, the first network device) provides the multicast service for the terminal device within the capability range of the terminal device, which can avoid the conflict between the unicast service and the multicast service of the terminal device.
  • this embodiment of the present application provides a communication device, the structure of which may be as shown in FIG. 12 , including a communication module 1201 and a processing module 1202 .
  • the communication device can be specifically used to implement the method performed by the terminal device in the embodiment of FIG. Executes part of the associated method's functionality.
  • the communication module 1201 is used to communicate with the network device;
  • the processing module 1202 is used to send the first information to the network device through the communication module 1201, and the first information indicates the supported or expected maximum number of HARQ processes with feedback;
  • the processing module 1202 when sending the first information to the network device through the communication module 1201, is specifically configured to: send capability information to the network device through the communication module 1201, where the capability information carries the first information; or, through the communication module 1201 Send the auxiliary information to the network device, where the auxiliary information carries the first information.
  • the processing module 1202 when sending the first information to the network device through the communication module 1201, is specifically configured to: send the first information to the network device through the communication module 1201 if the trigger condition is met; or, receive the first information through the communication module 1201 Upon receiving a request message from the network device, the communication module 1201 sends the first information to the network device, where the request message is used to request the first information.
  • the processing module 1202 is further configured to: determine that the trigger condition is met according to at least one of the following: occupancy of the first buffer space, the number of HARQ processes configured to have feedback, or the number of HARQ processes configured to have no feedback , where the first buffer space is used for the HARQ process with feedback.
  • the trigger condition includes at least one of the following: the usage of the first buffer space exceeds the first threshold, or the unused amount of the first buffer space is smaller than the second threshold; the number of HARQ processes configured to have feedback accounts for the first A ratio of the number of HARQ processes exceeds the third threshold, or, the ratio of the number of HARQ processes configured to have no feedback to the total number of the first HARQ processes is lower than the fourth threshold; the number of HARQ processes configured to have feedback changes, or, The amount of change of the HARQ process configured to have feedback exceeds a fifth threshold.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information is the supported or expected maximum number of HARQ processes with feedback; or, the first information indicates the supported or expected maximum number of HARQ processes with feedback; The proportion of the maximum number of HARQ processes fed back to the maximum number of supported HARQ processes; or, the first information indicates the size of a first buffer space, and the first buffer space is used for HARQ processes with feedback.
  • the processing module 1202 is further configured to: send third information and/or fourth information to the network device through the communication module 1201, the third information indicates the maximum number of HARQ processes supported, and the fourth information indicates the supported or expected number of HARQ processes. The maximum number of HARQ processes fed back.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information includes third information and fourth information, the third information indicates the maximum number of HARQ processes supported, and the fourth information indicates The maximum number of HARQ processes supported or expected without feedback.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information indicates the maximum number of HARQ processes with feedback respectively corresponding to at least one cell; or, the first information indicates at least one frequency band The corresponding maximum number of HARQ processes with feedback; or, the first information indicates the maximum number of HARQ processes with feedback respectively corresponding to at least one frequency band combination.
  • the communication device can specifically be used to implement the method executed by the network device in the embodiment of FIG. Executes part of the associated method's functionality.
  • the communication module 1201 is used to communicate with the terminal device;
  • the processing module 1202 is used to receive the first information from the terminal device through the communication module 1201, the first information indicates the supported or expected maximum number of HARQ processes with feedback; and , sending second information to the terminal device through the communication module 1201, the second information is used to configure n HARQ processes with feedback, n is an integer greater than 0, and n is less than or equal to the number of HARQ processes indicated by the first information.
  • the processing module 1202 when receiving the first information from the terminal device through the communication module 1201, is specifically configured to: receive capability information from the terminal device through the communication module 1201, where the capability information carries the first information; Module 1201 receives auxiliary information from a terminal device, where the auxiliary information carries first information.
  • the processing module 1202 is further configured to: send a request message to the terminal device through the communication module 1201, where the request message is used to request the first information.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, including: the first information is the supported or expected maximum number of HARQ processes with feedback; or, the first information is the supported or expected maximum number of HARQ processes with feedback; The ratio of the maximum number of HARQ processes to the maximum number of supported HARQ processes; or, the first information is the size of the first buffer space, and the first buffer space is used for HARQ processes with feedback.
  • the processing module 1202 is further configured to: receive third information and/or fourth information from the terminal device through the communication module 1201, the third information indicates the maximum number of HARQ processes supported, and the fourth information indicates the supported or expected none The maximum number of HARQ processes fed back.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information includes third information and fourth information, the third information indicates the maximum number of HARQ processes supported, and the fourth information indicates The maximum number of HARQ processes supported or expected without feedback.
  • the first information indicates the supported or expected maximum number of HARQ processes with feedback, specifically including: the first information indicates the maximum number of HARQ processes with feedback respectively corresponding to at least one cell; or, the first information indicates at least one frequency band The corresponding maximum number of HARQ processes with feedback; or, the first information indicates the maximum number of HARQ processes with feedback respectively corresponding to at least one frequency band combination.
  • each functional module in each embodiment of the present application can be integrated into a processing In the controller, it can also be physically present separately, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It can be understood that, for the function or implementation of each module in the embodiment of the present application, further reference may be made to the relevant description of the method embodiment.
  • the communication device may be as shown in Figure 13, the device may be a communication device or a chip in a communication device, where the communication device may be the terminal device in the above embodiment or the terminal device in the above embodiment Internet equipment.
  • the device includes a processor 1301 and a communication interface 1302 , and may also include a memory 1303 .
  • the processing module 1202 may be the processor 1301 .
  • the communication module 1201 can be a communication interface 1302 .
  • the processor 1301 may be a CPU, or a digital processing unit or the like.
  • the communication interface 1302 may be a transceiver, or an interface circuit such as a transceiver circuit, or a transceiver chip or the like.
  • the device also includes: a memory 1303 for storing programs executed by the processor 1301 .
  • the memory 1303 can be a non-volatile memory, such as a hard disk (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), etc., and can also be a volatile memory (volatile memory), such as a random access memory (random -access memory, RAM).
  • the memory 1303 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the processor 1301 is configured to execute the program codes stored in the memory 1303 , and is specifically configured to execute the actions of the processing module 1202 described above, which will not be repeated in this application.
  • the communication interface 1302 is specifically used to execute the actions of the communication module 1201 described above, which will not be repeated in this application.
  • a specific connection medium among the communication interface 1302, the processor 1301, and the memory 1303 is not limited.
  • the memory 1303, the processor 1301, and the communication interface 1302 are connected through the bus 1304.
  • the bus is represented by a thick line in FIG. 13, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 13 , but it does not mean that there is only one bus or one type of bus.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer software instructions required to execute the above-mentioned processor, which includes a program required to execute the above-mentioned processor.
  • An embodiment of the present application further provides a communication system, including a communication device for realizing the function of the terminal device in the embodiment of FIG. 4 and a communication device for realizing the function of the network device in the embodiment of FIG. 4 .
  • An embodiment of the present application further provides a communication system, including a communication device for realizing the function of the terminal device in the embodiment of FIG. 6 and a communication device for realizing the function of the network device in the embodiment of FIG. 6 .
  • An embodiment of the present application further provides a communication system, including a communication device for realizing the function of the terminal device in the embodiment of FIG. 11 and a communication device for realizing the function of the network device in the embodiment of FIG. 11 .
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

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Abstract

本申请提供一种通信方法及装置，用于提升混合式自动重传请求(HARQ)传输性能。该方法包括：终端设备向网络设备发送第一信息，并接收来自网络设备的第二信息，第一信息指示支持或期望的具有反馈的最大HARQ进程数，第二信息用于配置n个具有反馈的HARQ进程，n为大于0的整数，且n小于或等于第一信息指示的HARQ进程数。通过向网络设备指示支持或期望的具有反馈的最大HARQ进程数，辅助网络设备为终端设备合理配置HARQ进程，避免网络设备配置的具有反馈的HARQ进程的数量超过终端设备的缓存空间或者性能，此外，终端设备可以在满足自身性能或者缓存空间等的限制下使用更多的HARQ进程用于业务，提升传输性能。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2022年02月11日提交中国专利局、申请号为202210130206.0、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
混合式自动重传请求(hybrid automatic repeat request，HARQ)，是一种保障数据传输可靠性的方法。HARQ传输可以采用多个HARQ进程并行处理，一个HARQ进程在等待确认时，发送方可以使用另一个HARQ进程继续发送信息，同样接收方在处理一个HARQ进程接收到的信息时，可以使用另一个HARQ进程继续接收信息。
目前终端设备会向网络设备上报支持的最大HARQ进程数，网络设备根据终端设备上报的最大HARQ进程数为终端设备配置HARQ进程，例如当终端设备上报了支持32个HARQ进程时，网络设备可以最多为终端设备配置32个具有反馈的HARQ进程。因此，对于想要支持较多的进程用于某些业务，但是没有足够的空间或者性能较差导致不能完全支持进行具有反馈的HARQ进程的终端设备来说是有限制的，这些终端设备只能上报较少的支持的最大HARQ进程数，从而被配置的HARQ进程数就较少，进而导致HARQ传输性能较差。
发明内容
本申请提供一种通信方法及装置，用于提升HARQ传输性能。
第一方面，本申请提供一种通信方法，该方法的执行主体可以是终端设备，也可以是芯片或电路或用于实现终端设备的功能的其他部件。该方法包括：向网络设备发送第一信息，第一信息指示支持或期望的具有反馈的最大HARQ进程数；并接收来自网络设备的第二信息，第二信息用于配置n个具有反馈的HARQ进程，n为大于0的整数，且n小于或等于第一信息指示的HARQ进程数。
本申请实施例中通过向网络设备指示支持或期望的具有反馈的最大HARQ进程数，可以辅助网络设备为终端设备合理配置HARQ进程，避免网络设备配置的具有反馈的HARQ进程的数量超过终端设备的缓存空间或者性能，提升网络设备配置HARQ进程的合理性。此外，终端设备可以在满足自身性能或者缓存空间等的限制下使用更多的HARQ进程用于业务，提升传输性能。
一种可能的设计中，向网络设备发送第一信息，包括：向网络设备发送能力信息，能力信息携带第一信息，或，向网络设备发送辅助信息，辅助信息携带第一信息。
上述设计通过能力信息或者辅助信息上报支持或期望的具有反馈的最大HARQ进程数，可以使得网络设备配置的具有反馈的HARQ进程的数量不超过终端设备的能力。
一种可能的设计中，向网络设备发送第一信息，包括：如果满足触发条件，向网络设备发送第一信息；或者，接收到来自网络设备的请求消息，向网络设备发送第一信息，请求消息用于请求第一信息。上述设计中，终端设备通过触发机制或者请求机制上报第一信息，可以节省信令开销。
一种可能的设计中，根据如下至少一项确定满足触发条件：第一缓存空间的占用情况、配置为具有反馈的HARQ进程的数量、或配置为无反馈的HARQ进程的数量，第一缓存空间用于具有反馈的HARQ进程。通过上述设计，可以使得网络设备在满足终端设备的限制下为终端设备配置HARQ进程。
一种可能的设计中，触发条件包括如下至少一项：第一缓存空间的使用量超过第一阈值，或者，第一缓存空间的未使用量小于第二阈值；配置为具有反馈的HARQ进程的数量占第一HARQ进程数的比例超过第三阈值，或者，配置为无反馈的HARQ进程的数量占第一HARQ进程的总数的比例低于第四阈值；配置为具有反馈的HARQ进程的数量变化，或者，配置为具有反馈的HARQ进程的变化量超过第五阈值。
上述设计通过在配置的具有反馈的HARQ进程的数量较多时，上报第一信息，可以使得网络设备在满足终端设备的限制下为终端设备配置HARQ进程，并且通过该方式可以提升指示的准确性和灵活性。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息为支持或期望的具有反馈的最大HARQ进程数；或者，第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；或者，第一信息指示第一缓存空间的大小，第一缓存空间用于具有反馈的HARQ进程。通过该方式可以实现支持或期望的具有反馈的最大HARQ进程数的灵活上报。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例，包括：第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例对应的索引。通过上报索引的方式指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例，可以节省信令开销。
一种可能的设计中，方法还包括：向网络设备发送第三信息和/或第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。上述方式可以通过发送第三信息和第四信息，使得网络设备可以确定终端设备支持或期望的具有反馈的最大HARQ进程数、支持或期望的无反馈的最大HARQ进程数以及支持的最大HARQ进程数，有利于网络设备配置HARQ进程的合理性。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息包括第三信息和第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。上述方式可以通过第三信息和第四信息隐式指示终端设备支持或期望的具有反馈的最大HARQ进程数，可以在降低信令开销气的前提下使得网络设备可以确定终端设备支持或期望的具有反馈的最大HARQ进程数、支持或期望的无反馈的最大HARQ进程数以及支持的最大HARQ进程数，有利于网络设备配置HARQ进程的合理性。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；或者， 第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；或者，第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。通过上述设计可以提升指示的粒度。
第二方面，本申请提供一种通信方法，该方法的执行主体可以是网络设备，也可以是芯片或电路。方法包括：接收来自终端设备的第一信息，第一信息指示支持或期望的具有反馈的最大HARQ进程数，并向终端设备发送第二信息，第二信息用于配置n个具有反馈的HARQ进程，n为大于0的整数，且n小于或等于第一信息指示的HARQ进程数。
本申请实施例中通过向网络设备指示支持或期望的具有反馈的最大HARQ进程数，可以辅助网络设备为终端设备合理配置HARQ进程，避免网络设备配置的具有反馈的HARQ进程的数量超过终端设备的缓存空间或者性能，此外，终端设备可以在满足自身性能或者缓存空间等的限制下上报更多的HARQ进程用于业务，提升传输性能。
一种可能的设计中，接收来自终端设备的第一信息，包括：接收来自终端设备的能力信息，能力信息携带第一信息；或者，接收来自终端设备的辅助信息，辅助信息携带第一信息。上述设计通过能力信息或者辅助信息获取终端设备支持或期望的具有反馈的最大HARQ进程数，可以使得网络设备配置的具有反馈的HARQ进程的数量不超过终端设备的能力。
一种可能的设计中，方法还包括：向终端设备发送请求消息，请求消息用于请求第一信息。上述设计中，通过请求机制指示终端设备上报第一信息，可以节省信令开销。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数，包括：第一信息为支持或期望的具有反馈的最大HARQ进程数；或者，第一信息为支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；或者，第一信息为第一缓存空间的大小，第一缓存空间用于具有反馈的HARQ进程。通过该方式可以实现支持或期望的具有反馈的最大HARQ进程数的灵活上报。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例，包括：第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例对应的索引。通过上报索引的方式指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例，可以节省信令开销。
一种可能的设计中，方法还包括：接收来自终端设备的第三信息和/或第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。上述方式可以通过发送第三信息和第四信息，使得网络设备可以确定终端设备支持或期望的具有反馈的最大HARQ进程数、支持或期望的无反馈的最大HARQ进程数以及支持的最大HARQ进程数，有利于网络设备配置HARQ进程的合理性。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息包括第三信息和第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。上述方式可以通过第三信息和第四信息隐式指示终端设备支持或期望的具有反馈的最大HARQ进程数，可以在降低信令开销气的前提下使得网络设备可以确定终端设备支持或期望的具有反馈的最大HARQ进程数、支持或期望的无反馈的最大HARQ进程数以及支持的最大HARQ进程数，有利于网络设备配置HARQ进程的合理性。
一种可能的设计中，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；或者，第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；或者，第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。通过上述设计可以提升指示的精细度。
第三方面，本申请提供一种通信方法，该方法的执行主体可以是终端设备，也可以是芯片或电路或用于实现终端设备的功能的其他部件。该方法包括：向网络设备发送能力信息，能力信息指示支持的最大HARQ进程数M，M为大于0的整数；并接收来自网络设备的配置信息，配置信息用于配置N个具有反馈的HARQ进程和K个无反馈的HARQ进程，N为大于0且小于M的整数，K为大于0的整数，N和K的和大于M。
本申请实施例可以在不修改终端设备的能力上报机制的前提下实现多个无反馈的HARQ进程，从而可以实现扩充HARQ进程数，并且可以避免网络设备配置的具有反馈的HARQ进程超出终端设备的能力，提升传输性能。
一种可能的设计中，可以基于N个具有反馈的HARQ进程和K个无反馈的HARQ进程进行数据传输。通过上述设计可以提升HARQ进程的传输性能。
一种可能的设计中，K个无反馈的HARQ进程中至少两个HARQ进程共享第一缓存空间，第一缓存空间包括至少一个HARQ进程对应的缓存空间。通过上述设计，使得网络设备可以在不超出终端设备的能力下为终端设备配置更多的HARQ进程。
第四方面，本申请提供一种通信方法，该方法的执行主体可以是网络设备，也可以是芯片或电路。方法包括：接收来自终端设备的能力信息，能力信息指示支持的最大混合式自动重传请求HARQ进程数M，M为大于0的整数；并向终端设备发送配置信息，配置信息用于配置N个具有反馈的HARQ进程和K个无反馈的HARQ进程，N为大于0且小于M的整数，K为大于0的整数，N和K的和大于M。
本申请实施例可以在不修改终端设备的能力上报机制的前提下实现多个无反馈的HARQ进程，从而可以实现扩充HARQ进程数，并且可以避免网络设备配置的具有反馈的HARQ进程超出终端设备的能力，提升传输性能。
一种可能的设计中，配置信息指示K个无反馈的HARQ进程中共享第一缓存空间的至少两个HARQ进程。通过上述设计，使得网络设备可以在不超出终端设备的能力下为终端设备配置更多的HARQ进程。
第五方面，本申请还提供一种通信装置，该通信装置具有实现上述第一方面或第三方面提供的任一方法。该通信装置可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的设计中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中终端设备的相应功能。该通信装置还可以包括存储器，该存储可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括接口电路，该接口电路用于支持该通信装置与网络设备等设备之间的通信。
在一种可能的设计中，该通信装置包括相应的功能模块，分别用于实现以上方法中的步骤。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。硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，通信装置的结构中包括处理模块和通信模块，这些模块可以执 行上述方法示例中相应功能，具体参见第一方面或第三方面提供的方法中的描述，此处不做赘述。
第六方面，本申请还提供一种通信装置，该通信装置具有实现上述第二方面或第四方面提供的任一方法。该通信装置可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的设计中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中网络设备的相应功能。该通信装置还可以包括存储器，该存储可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括接口电路，该接口电路用于支持该通信装置与终端设备等设备之间的通信。
在一种可能的设计中，该通信装置包括相应的功能模块，分别用于实现以上方法中的步骤。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。硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，通信装置的结构中包括处理模块和通信模块，这些模块可以执行上述方法示例中相应功能，具体参见第二方面或第四方面提供的方法中的描述，此处不做赘述。
第七方面，提供了一种通信装置，包括处理器和接口电路，接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置，该处理器通过逻辑电路或执行代码指令用于实现前述第一方面或第三方面以及任意可能的设计中的方法。
第八方面，提供了一种通信装置，包括处理器和接口电路，接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置，该处理器通过逻辑电路或执行代码指令用于实现前述第二方面或第四方面以及任意可能的设计中的方法。
第九方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序或指令，当该计算机程序或指令被处理器执行时，实现前述第一方面至第四方面中任一方面以及任意可能的设计中的方法。
第十方面，提供了一种存储有指令的计算机程序产品，当该指令被处理器运行时，实现前述第一方面至第四方面中任一方面以及任意可能的设计中的方法。
第十一方面，提供一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现前述第一方面至第四方面中任一方面以及任意可能的设计的方法。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
第十二方面，提供一种通信系统，所述系统包括第一方面所述的装置(如终端设备)和第二方面所述的装置(如网络设备)。或者，所述系统包括第三方面所述的装置(如终端设备)和第四方面所述的装置(如网络设备)。
附图说明
图1为本申请实施例的一种HARQ进程传输示意图；
图2为本申请实施例的一种多HARQ进程传输示意图；
图3为本申请实施例的一种通信系统的架构示意图；
图4为本申请实施例的一种通信方法的流程示意图；
图5为本申请实施例的一种HARQ进程配置示意图；
图6为本申请实施例的一种通信方法的流程示意图；
图7为本申请实施例的一种HARQ进程配置示意图；
图8为本申请实施例的一种HARQ进程配置示意图；
图9为本申请实施例的一种HARQ进程配置示意图；
图10为本申请实施例的一种HARQ进程配置示意图；
图11为本申请实施例的一种通信方法的流程示意图；
图12为本申请实施例的一种通信装置的结构示意图；
图13为本申请实施例的一种通信装置的结构示意图。
具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)非地面通信(non-terrestrial networks，NTN)
NTN将非地面通信设备如飞机/无人机等飞行器或者卫星等引入通信系统作为中继节点或者接入网设备。在NTN网络中在终端设备和接入网设备之间发送数据的时候，数据需要传输到非地面通信设备上，由于传播距离相比于地面通信网络的设备之间的距离要大得多，因此数据传输的往返时间(round-trip time，RTT)较大。
2)HARQ机制
HARQ机制利用了前向纠错(forward error correction，FEC)算法对信道进行编码处理，即在发送的信息中添加具有一定检错和纠错能力的冗余信息。接收方按照相应的逆向算法对接收到的信号进行译码，发现出错后，尽其所能进行纠错，如果可以纠正，则数据传输成功，接收端会发送一个肯定的确认(acknowledgement，ACK)给发送端，发送端收到ACK后，会接着发送下一个数据包。如果纠正不了，则再利用HARQ机制，并发送一个否定的确认(negative acknowledgement，NACK)给发送端，通知发送方重传，发送端收到NACK后，会重发相同的数据。如图1所示。
由于一些场景中如NTN场景中，网络设备向终端设备重传数据的时延比较大，比如一些对时效性要求较高的数据场景经过长时延的重传后数据将失效，可以将一些HARQ进程可以被配置为无反馈的HARQ进程，因此，目前HARQ机制中可以包括无反馈的HARQ机制和具有反馈的HARQ机制，也就是说，HARQ进程中可以包括无反馈的HARQ进程和具有反馈的HARQ进程。其中，无反馈的HARQ进程是在接收到数据后，只进行纠错处理，如果传输成功则递交，如果传输失败也不会开始等待接收重传的计时器(timer)，也就是不具有反馈的HARQ进程没有重传。具有反馈的HARQ进程是在接收到数据后，如果纠错失败后，反馈NACK给发送端后开始等待接收重传的timer，也就是具有反馈的HARQ进程有重传机制。
本申请实施例中，具有反馈的HARQ进程也可以称为“支持反馈的HARQ进程”、“使能反馈的HARQ进程”、“可反馈的HARQ进程”、“可重传的HARQ进程”、“具有重传的HARQ进程”、“支持重传的HARQ进程”或“使能重传的HARQ进程”等，也可以称为状态A的HARQ进程。
相应的，无反馈的HARQ进程也可以称为“不具有反馈的HARQ进程”、“不支持反馈的HARQ进程”、“未使能反馈的HARQ进程”、“不可反馈的HARQ进程”、“不可重传的HARQ进程”、“不具有重传的HARQ进程”、“不支持重传的HARQ进程”或“未使能重传的HARQ进程”等，也可以称为状态B的HARQ进程。
HARQ机制可以采用多个进程并行处理，一个进程在等待确认时，发送端可以使用另一个进程继续发送信息，同样接收端在处理一个进程接收到的信息时，可以使用另一个进程继续接收信息。如图2所示。
终端设备可以上报支持的最大HARQ进程数，比如16或者32。然后网络设备为终端设备通过无线资源控制(radio resource control，RRC)信令配置HARQ进程配置，例如，HARQ进程数，每个HARQ进程对应的类型(具有反馈的HARQ进程或无反馈的HARQ进程)。本申请实施例中，最大进程数只表示进程数上限，并非所有进程都会被用到。
3)终端设备，包括向用户提供语音和/或数据连通性的设备，具体的，包括向用户提供语音的设备，或包括向用户提供数据连通性的设备，或包括向用户提供语音和数据连通性的设备。例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音或数据，或与RAN交互语音和数据。该终端设备可以包括UE、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、车到一切(vehicle to everything，V2X)终端设备、机器到机器/机器类通信(machine-to-machine /machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
本申请实施例中，终端设备还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端设备。
本申请实施例中，用于实现终端设备的功能的装置可以是终端设备，也可以是应用于终端设备中能够支持终端设备实现该功能的装置，例如具备通信功能的部件或组件，或者芯片系统，该装置可以被安装在终端设备中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例提供的技术方案中，以用于实现终端的功能的装置是终端设备为例，描述本申请实施例提供的技术方案。
4)网络设备，例如包括接入网(access network，AN)设备，例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与终端设备通信的设备。网络设备可以包括LTE系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(the 5th generation，5G)NR系统(也简称为NR系统)中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和/或分布式单元(distributed unit，DU)，本申请实施例并不限定。例如网络设备可以为Cloud RAN系统中的CU，或为DU，或为CU和DU的整体。
网络设备还可以包括核心网设备，核心网设备例如包括访问和移动管理功能(access and mobility management function，AMF)等。本申请实施例由于主要涉及接入网，因此在后文中如无特殊说明，则所述的网络设备均是指接入网设备。
本申请实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中。在本申请实施例提供的技术方案中，以用于实现网络设备的功能的装置是网络设备为例，描述本申请实施例提供的技术方案。
5)多播传输技术，或者也可以称为多媒体广播多播业务(multimedia broadcast multicast service，MBMS)技术，或者也可以称为多播传输方式，或者也可以称为多播广播业务(multicast and broadcast service，MBS)技术，是指某种业务通过网络设备同时向多个终端设备发送数据的技术。在采用多播技术传输时，针对同一数据，网络设备(例如基站)发送的过程中有多个终端设备同时进行接收。
6)采用多播(multicast)传输方式发送是指：某一装置发送协议数据单元(protocol data unit,PDU)对应的传输块(transport block，TB)时，采用分组无线网络临时标识(group radio network temporary identifier，G-RNTI)对PDU进行加扰，或对PDU对应的下行控制信息(downlink control information，DCI)进行加扰，同时有一个或者多个装置根据相同的G-RNTI对同一PDU进行接收；或者采用多播的方式传输PDU可以指通过半静态方式告诉多个装置同一PDU的位置，多个装置可以同时对该PDU进行接收；或者采用多播的方式传输PDU可以指该PDU在为多播传输建立的无线承载中传输或者在专门为多播设计的信道中进行传输。
采用多播传输方式接收是指采用多播方式发送的时候，所述多个接收装置中的一个装置根据G-RNTI对PDU进行接收；或者所述多个接收装置中的一个装置通过为多播传输建立的无线承载接收或者在用于多播传输的信道上进行接收PDU。
在本申请中，组播为多播的一种具体方式，因此，多播也可以称为组播、广播、MBS。
7)采用单播(unicast)传输的方式发送是指：某一装置发送PDU对应的TB时，采用小区无线网络临时标识(cell network temporary identifier，C-RNTI)对PDU进行加扰， 或对PDU对应的DCI进行加扰，同时只有一个装置根据C-RNTI对同一PDU进行接收；或者采用单播的方式传输PDU可以指该PDU在为单播传输建立的无线承载中传输或者在专门为单播设计的信道中进行传输。
采用单播传输方式接收是指采用单播方式发送的时候，所述一个接收装置根据C-RNTI对PDU进行接收；或者所述一个装置通过为单播传输建立的无线承载接收或者在用于单播传输的信道上进行接收。
8)采用广播(broadcast)传输的方式发送和接收是指：某一装置在广播信道上发送PDU对应的TB，所有接收装置都可以在广播信道上对PDU进行接收。
本申请实施例中“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a，b，c，a和b，a和c，b和c，或a和b和c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的大小、内容、顺序、时序、优先级或者重要程度等。例如，第一信息和第二信息，只是为了区分不同的信息，而并不是表示这两个信息的内容、优先级或者重要程度等的不同。
前文介绍了本申请实施例所涉及到的一些名词概念，下面介绍本申请实施例涉及的技术特征。
网络设备可以根据终端设备上报的最大HARQ进程数为终端设备配置HARQ进程，例如，HARQ进程数，每个HARQ进程对应的类型(具有反馈的HARQ进程或不具有反馈的HARQ进程)。其中，网络设备配置的具有反馈的HARQ进程的数量不能超过终端设备上报的最大HARQ进程数，例如当终端设备上报了支持32个HARQ进程时，网络设备可以最多为终端设备配置32个具有反馈的HARQ进程。但是，对于想要支持较多的进程用于业务，但是没有足够的空间或者性能较差导致不能完全支持全部配置为具有反馈的HARQ进程的终端设备来说是有限制的，只能上报较少的支持的HARQ进程数，导致HARQ传输性能较差。
例如，终端设备支持32个HARQ进程用于业务，但是该终端设备的空间或者性能最多只能支持16个具有反馈的HARQ进程，为了避免网络设备配置的具有反馈的HARQ进程的数量超出终端设备的空间或者性能，从而在终端设备只能上报支持的最大HARQ进程数为16，导致HARQ传输性能较差。
基于此，本申请实施例提供一种通信方法及装置，用于提升HARQ传输性能。其中，方法和装置是基于同一构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。
本申请提供的通信方法可以应用于各类通信系统中，例如，可以是物联网(internet of things，IoT)、窄带物联网(narrow band internet of things，NB-IoT)、长期演进(long term evolution，LTE)，也可以是第五代(5G)通信系统，还可以是LTE与5G混合架构、也可以是5G新无线(new radio，NR)系统以及6G或者未来通信发展中出现的新的通信系统 等。本申请所述的通信系统还可以是机器到机器(machine to machine，M2M)网络、NTN网络或者其他网络。
参阅图3所示，为本申请实施例提供的一种通信系统，该通信系统包括网络设备和六个终端设备，即UE1～UE6。在该通信系统中，UE1～UE6可以发送上行数据给网络设备，网络设备可以接收UE1～UE6发送的上行数据。此外，UE4～UE6也可以组成一个子通信系统。网络设备可以发送下行信息给UE1、UE2、UE3、UE5，UE5可以基于设备到设备(device-to-device，D2D)技术发送下行信息给UE4、UE6。图1仅是一种示意图，并不对通信系统的类型，以及通信系统内包括的设备的数量、类型等进行具体限定。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题同样适用。
本申请实施例中“在……情况下”，也可以描述为“若……”或者“如果”或者“当……时”等等。例如，“如果满足触发条件”，也可以描述为“若满足触发条件”，或者“在满足触发条件的情况下”或者“当满足触发条件时”等等。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
如图4所示，为本申请实施例提供的一种通信方法的流程示意图。
S401，终端设备向网络设备发送第一信息。相应的，网络设备接收来自第一信息。
其中，第一信息指示支持或期望的具有反馈的最大HARQ进程数。
下面介绍第一信息的三种指示方式。
方式一，第一信息可以指示支持或期望的具有反馈的最大HARQ进程数。该方式通过直接指示终端设备支持或期望的具有反馈的最大HARQ进程数，可以使网络设备直接确定终端设备支持或期望的具有反馈的最大HARQ进程数。
一种示例性说明中，第一信息可以显式指示支持或期望的具有反馈的最大HARQ进程数，例如，若支持或期望的具有反馈的最大HARQ进程数为16，则第一信息指示16，若支持或期望的具有反馈的最大HARQ进程数为22，则第一信息指示22。
另一种示例性说明中，第一信息也可以隐式指示支持或期望的具有反馈的最大HARQ进程数，例如，第一信息可以通过一个或多个标志位的状态指示不同的数值。又例如，第一信息可以指示HARQ进程数对应的索引，通过该方式，可以节省信令开销。又例如，第一信息也可以通过指示第一缓存空间的大小的方式隐式指示支持或期望的具有反馈的最大HARQ进程数。
第一缓存空间用于具有反馈的HARQ进程，也可以理解为终端设备为具有反馈的HARQ进程预留(或者配置)的缓存空间。或者，第一缓存空间也可以为终端设备的总的缓存空间，或者终端设备为接收下行数据预留的缓存空间，或终端设备为媒体介入控制(media access control，MAC)层处理预留的缓存空间，或者终端设备为NTN业务预留的缓存空间，或者是为NTN业务预留的MAC层处理的缓存空间。
方式二，第一信息还可以指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例。或者，第一信息还可以指示第一缓存空间的大小。上述方式通过隐式指示终端设备支持或期望的具有反馈的最大HARQ进程数，可以节省信令开销。
一种示例性说明中，第一信息可以显式指示支持或期望的具有反馈的最大HARQ进程 数占支持的最大HARQ进程数的比例，例如，若支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例为50％，则第一信息指示50％，若支持或期望的具有反馈的最大HARQ进程数为20％，则第一信息指示20％。
另一种示例性说明中，第一信息也可以隐式指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例，例如，第一信息可以通过一个或多个标志位的状态指示不同的比例。又例如，第一信息可以指示比例对应的索引，通过该方式，可以节省信令开销。
方式三，第一信息还可以包括第三信息和第四信息，其中，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。上述方式可以通过第三信息和第四信息隐式指示终端设备支持或期望的具有反馈的最大HARQ进程数。
可选的，若第一信息通过上述方式一或方式二指示，终端设备还可以向网络设备发送第三信息和/或第四信息，其中，第三信息和/或第四信息与第一信息可以通过同一条信令发送，也可以通过不同信令发送，这里不做具体限定。
基于上述三种指示方式的描述，这里介绍终端设备上报HARQ进程的能力的四种示例。
一个示例中，终端设备可以向网络设备上报支持或期望的具有反馈的最大HARQ进程数和支持或期望的无反馈的最大HARQ进程数。在该示例中，网络设备可以根据支持或期望的具有反馈的最大HARQ进程数和支持或期望的无反馈的最大HARQ进程数确定终端设备支持或期望的最大HARQ进程数，也就是支持或期望的最大HARQ进程总数。
举例说明，终端设备可以向网络设备上报支持或期望的具有反馈的最大HARQ进程数为10，支持或期望的无反馈的最大HARQ进程数为10，则网络设备可以确定：支持或期望的具有反馈的最大HARQ进程数为10，支持或期望的无反馈的最大HARQ进程数为10，支持或期望的最大HARQ进程数为(10+10＝20)。
另一个示例中，终端设备可以向网络设备上报支持或期望的具有反馈的最大HARQ进程数和支持或期望的最大HARQ进程数(也就是HARQ进程总数)。在该示例中，网络设备可以根据支持或期望的具有反馈的最大HARQ进程数和支持或期望的最大HARQ进程数确定终端设备支持或期望的无反馈的最大HARQ进程数。
举例说明，终端设备可以向网络设备上报支持或期望的具有反馈的最大HARQ进程数为10，支持或期望的最大HARQ进程数为20，则网络设备可以确定：支持或期望的具有反馈的最大HARQ进程数为10，支持或期望的最大HARQ进程数为20，若将“具有反馈的最大HARQ进程数”理解为仅支持具有反馈的最大HARQ进程数，则支持或期望的无反馈的最大HARQ进程数为(20-10＝10)，若将“具有反馈的最大HARQ进程数”理解为可支持具有反馈的最大HARQ进程数，则支持或期望的无反馈的最大HARQ进程数为20。
另一个示例中，终端设备可以向网络设备上报支持或期望的无反馈的最大HARQ进程数和支持或期望的最大HARQ进程数(也就是HARQ进程总数)。在该示例中，网络设备可以根据支持或期望的无反馈的最大HARQ进程数和支持或期望的最大HARQ进程数确定终端设备支持或期望的具有反馈的最大HARQ进程数。
举例说明，终端设备可以向网络设备上报支持或期望的无反馈的最大HARQ进程数为10，支持或期望的最大HARQ进程数为20，则网络设备可以确定：若将“无反馈的最大HARQ进程数”理解为仅支持无反馈的最大HARQ进程数，则支持或期望的具有反馈的最大HARQ进程数为(20-10＝10)，若将“无反馈的最大HARQ进程数”理解为可支持无 反馈的最大HARQ进程数，则支持或期望的具有反馈的最大HARQ进程数为20。支持或期望的最大HARQ进程数为20，支持或期望的无反馈的最大HARQ进程数为10。
另一个示例中，终端设备可以向网络设备上报支持或期望的具有反馈的最大HARQ进程数、支持或期望的无反馈的最大HARQ进程数、以及支持或期望的最大HARQ进程数(也就是HARQ进程总数)。其中，支持或期望的具有反馈的最大HARQ进程数和支持或期望的无反馈的最大HARQ进程数的和可以等于支持或期望的最大HARQ进程数，也可以不等于(如大于或等于)支持或期望的最大HARQ进程数，这里不做限定。
举例说明，终端设备可以向网络设备上报支持或期望的具有反馈的最大HARQ进程数为10，支持或期望的无反馈的最大HARQ进程数为10，支持或期望的最大HARQ进程数为20。
或者，终端设备可以向网络设备上报支持或期望的具有反馈的最大HARQ进程数为10，支持或期望的无反馈的最大HARQ进程数为15，支持或期望的最大HARQ进程数为20。
下面介绍S401的两种实现方式。
第一种可能的实现方式中，终端设备可以通过能力信息向网络设备发送发第一信息，例如，终端设备向网络设备发送能力信息，其中，能力信息携带第一信息。
第二种可能的实现方式中，终端设备可以通过辅助信息向网络设备发送第一信息，例如，终端设备向网络设备发送辅助信息，其中，辅助信息携带第一信息。
基于上述第一种实现方式或第二种实现方式，一种具体的实现方式为，终端设备可以周期性上报第一信息。
基于上述第一种实现方式或第二种实现方式，另一种具体的实现方式为，终端设备可以在满足触发条件的情况下，向网络设备发送第一信息。
可选的，终端设备可以根据如下至少一项确定满足触发条件：第一缓存空间的占用情况、配置为具有反馈的HARQ进程的数量、或配置为无反馈的HARQ进程的数量。
示例性的，触发条件可以包括如下至少一项条件：
条件1，第一缓存空间不足或受限。
例如，第一缓存空间的使用量超过第一阈值，或者，第一缓存空间的未使用量小于第二阈值；
条件2，配置为具有反馈的HARQ进程的数量较多。
例如，配置为具有反馈的HARQ进程的数量占第一HARQ进程数的比例超过第三阈值，或者，配置为无反馈的HARQ进程的数量占第一HARQ进程的总数的比例低于第四阈值，或者，配置为具有反馈的HARQ进程的数量超过预设阈值，或者，其他可以表示配置为具有反馈的HARQ进程的数量较多的情况，这里不再一一列举。
其中，第一HARQ进程数可以为网络设备配置的HARQ进程总数，或者，第一HARQ进程数为终端设备支持的最大HARQ进程数，或者，第一HARQ进程数为终端设备支持的具有反馈的最大HARQ进程数。
条件3，配置为具有反馈的HARQ进程的数量变化，或者，配置为具有反馈的HARQ进程的变化量超过第五阈值。
其中，配置为具有反馈的HARQ进程的数量变化，可以是配置为具有反馈的HARQ进程的数量增加，也可以是配置为具有反馈的HARQ进程的数量减少。
上述第一种实现方式或第二种实现方式，另一种具体的实现方式为，终端设备可以在接收到来自网络设备的请求消息之后，向网络设备发送第一信息，请求消息用于请求第一信息。
可选的，上述两种实现方式可以结合实施，例如，终端设备可以向网络设备发送能力信息和辅助信息，其中，能力信息携带第一信息，辅助信息也携带第一信息。需要说明的是，能力信息携带的第一信息和辅助信息携带的第一信息可以相同也可以不同。
S402，网络设备向终端设备发送第二信息。相应的，终端设备接收来自网络设备的第二信息。
其中，第二信息用于配置n个具有反馈的HARQ进程，n为大于0的整数，且n小于或等于第一信息指示的HARQ进程数，也就是n的值不超过第一信息指示的HARQ进程数。
一个示例中，第二信息可以配置H个HARQ进程以及该H个HARQ进程的状态(即为具有反馈的HARQ进程或者无反馈的HARQ进程)。其中，该H个HARQ进程中有n个HARQ进程配置为具有反馈的HARQ进程，H为大于n的整数，且H的取值不大于终端设备支持的最大HARQ进程数。
在一些实施例中，终端设备在接收到第二信息后可以根据第二信息配置HARQ进程，并通过第二信息配置的HARQ进程进行业务，如接收数据和/或发送数据。
具体的，对于下行数据，对于具有反馈的HARQ进程，如果终端设备在该HARQ进程中接收到数据解码错误，则将该数据缓存到该HARQ进程对应的缓存空间中等待重传。
对于无反馈的HARQ进程，如果终端设备在该HARQ进程中接收到数据解码错误，则将该数据丢弃。
可选的，第一信息可以指示如下至少一项：至少一个小区分别对应的具有反馈的最大HARQ进程数、至少一个频段对应的具有反馈的最大HARQ进程数、T个频段组合中每个频段组合中至少一个频段对应的具有反馈的最大HARQ进程数、至少一个频段组合分别对应的具有反馈的最大HARQ进程数、或至少一个载波分别对应的具有反馈的最大HARQ进程数，T为大于0的整数。
本申请实施例中通过向网络设备指示支持或期望的具有反馈的最大HARQ进程数，可以辅助网络设备为终端设备合理配置HARQ进程，避免网络设备配置的具有反馈的HARQ进程的数量超过终端设备的缓存空间或者性能，此外，终端设备可以在满足自身性能或者缓存空间等的限制下上报更多的支持的HARQ进程数量用于业务，提升传输性能。
举例说明，假设终端设备用于具有反馈的HARQ进程的缓存空间(即上述第一缓存空间)为3.2Mbit，假设一个传输块(transport block，TB)大小为200Kbit，则终端设备最多支持16个具有反馈的HARQ进程。按照现有技术，若终端设备上报高于16的HARQ进程数，网络设备有可能全部配置成具有反馈的HARQ进程，这样就超出了终端设备的能力范围，因此，按照现有技术终端设备最多能上报16个HARQ进程。
而本申请实施例中，通过向网络设备上报的支持的具有反馈的最大HARQ进程数，比如16。当网络设备收到此信息后，最多会为终端设备配置16个具有反馈的HARQ进程，由于无反馈的HARQ进程不需要缓存空间，因此即使终端设备上报高于16的HARQ进程数，网络设备最多为终端设备配置16个具有反馈的HARQ进程，从而在避免超出终端设备的能力范围的前提下，终端设备可以上报更多的HARQ进程数，提升传输性能。如图5 所示。
下面介绍用于提升HARQ传输性能的另一种通信方法。
如图6所示，为本申请实施例提供的另一种通信方法的流程示意图。
S601，终端设备向网络设备发送能力信息。相应的，网络设备接收来自终端设备的能力信息。
其中，能力信息指示支持的最大HARQ进程数M，M为大于0的整数。
S602，网络设备向终端设备发送配置信息。相应的，终端设备接收来自网络设备的配置信息。
其中，配置信息用于配置N个具有反馈的HARQ进程和K个无反馈的HARQ进程，N为大于0且小于M的整数，K为大于0的整数，N和K的和大于M。
可选的，配置信息还可以指示K个无反馈的HARQ进程中共享第一缓存空间中至少两个HARQ进程对应的缓存空间。
相应的，K个无反馈的HARQ进程中至少两个HARQ进程共享第一缓存空间，第一缓存空间包括至少一个HARQ进程对应的缓存空间。可选的，在具体实施时，网络设备还可以指示共享的缓存空间对应的HARQ进程标识。
举例说明，假设终端设备包括16个缓存空间，也可以理解为第一缓存空间分为16个缓存空间，其中，第一缓存空间可以参阅图4所述方法中关于第一缓存空间的相关描述，这里不再重复说明。其中，一个具有反馈的HARQ进程可以对应一个缓存空间。
一个例子中，终端设备上报的最大HARQ进程数为16，即M为16。配置信息可以配置15个具有反馈的HARQ进程(即N＝15)和3个无反馈的HARQ进程(即K＝3)。该3个无反馈的HARQ进程可以共享一个缓存空间，如图7所示。
另一个例子中，终端设备上报的最大HARQ进程数为16，即M为16。配置信息可以配置12个具有反馈的HARQ进程(即N＝12)和7个无反馈的HARQ进程(即K＝7)。该7个无反馈的HARQ进程中的3个HARQ进程可以共享其余4个HARQ进程对应的缓存空间。具体可以是该3个HARQ进程中每个HARQ进程分别共享其余4个HARQ进程中的一个HARQ进程对应的缓存空间，例如，如图8所示。或者，该3个HARQ进程中有2个HARQ进程共享其余4个HARQ进程中的一个HARQ进程对应的缓存空间，该3个HARQ进程中剩余的1个HARQ进程共享其余4个HARQ进程中的另一个HARQ进程对应的缓存空间，例如，如图9所示。或者，该3个HARQ进程共享其余4个HARQ进程中的一个HARQ进程对应的缓存空间，例如，如图10所示。
应理解，上述如7～图10仅是示意图，并不对无反馈的HARQ进程占用的缓存空间位置进行具体限定。
在一些实施例中，终端设备在接收到配置信息后可以根据配置信息配置HARQ进程，并通过配置信息配置的HARQ进程接收数据。具体的，终端设备在接收到配置信息后可以配置N个具有反馈的HARQ进程和K个无反馈的HARQ进程，并基于N个具有反馈的HARQ进程和K个无反馈的HARQ进程进行数据传输。
本申请实施例可以在不修改终端设备的能力上报机制的前提下实现多个无反馈的HARQ进程，从而可以实现扩充HARQ进程数，并且可以避免网络设备配置的具有反馈的HARQ进程超出终端设备的能力，提升传输性能。
以上介绍两种提升HARQ传输性能的通信方法。下面介绍另一种通信方法，该通信方法可以使得网络设备在终端设备的最大能力范围内进行单播业务和/或多播业务的相关配置。
在一种场景下，终端设备可以支持在执行单播操作的时候还接收广播多播业务，此时单播和广播多播业务共享终端设备的基带能力。例如，终端设备可以从第一网络设备接收多播业务，在第二网络设备接收单播业务，其中，第一网络设备和第二网络设备可以属于同一个运营商，也可以属于不同运营商。
下面结合上述场景介绍一种通信方法。如图11所示，该通信方法包括：
S1101，终端设备向第二网络设备发送指示信息。相应的，第二网络设备接收来自终端设备的指示信息。其中，终端设备与第一网络设备进行多播业务，终端设备与第二网络设备进行单播业务。
其中，该指示信息用于指示该终端设备接收多播业务使用的资源或支持接收多播业务的能力，举例说明，该指示信息可以用于指示如下至少一项：
终端设备接收多播业务使用的HARQ进程数量；
终端设备在接收多播业务使用的服务质量(quality of service，QoS)流数量；
终端设备在接收多播业务使用的MBS会话数量；或，
终端设备接收多播业务使用的速率匹配图样(pattern)数量。
其中，速率匹配pattern是用于网络设备为终端设备配置物理下行共享通道(physical downlink shared channel，PDSCH)时配置的用于配置速率匹配参数所使用的pattern，所有业务需要在最大数量限制内，比如4个。
应理解，指示信息还可以指示终端设备接收多播业务时的其他参数，这里不再一一列举。
可选的，上述HARQ进程数量、QoS流数量等参数可以是终端设备级别的，或者业务级别，或者小区级别，或者小区组(cell group)级别。
需要说明的是，支持接收多播业务的能力可以理解为终端设备单独接收多播业务的能力，和/或终端设备同时接收单播业务和多播业务时支持接收多播业务的能力。
需要说明的是，终端设备接收多播业务使用的资源可以理解为该终端设备正在接收多播业务使用的资源；或，可以理解为该终端设备希望接收多播业务时占用的资源；或，可以理解为该终端设备支持接收多播业务规划的资源。
终端设备可以通过以下几种方式发送指示信息：
方式一，指示信息可以包括在MBS兴趣指示(MBS interest indicator，MII)信令中。
方式二，终端设备可以单独发送指示信息。
方式三，指示信息可以包括在UE辅助信息(UE assistance information)信令中。
方式四，指示信息可以包括在UE能力信息(UECapabilityInformation)信令中。
应理解，本申请实施例对于终端设备发送接收多播业务使用的资源或支持接收多播业务的能力的方式并不限定，当通过除上述4种方式以外的方式以实施本申请的方法均应落入本申请的保护范围。
S1102，第二网络设备根据该指示信息配置单播业务资源。
例如，指示信息指示终端设备接收多播业务时使用的HARQ进程数量为R1，终端设备上报的最大HARQ进程数为R2，第二网络设备为终端设备最多配置(R2-R1)个HARQ 进程用于单播业务。
又例如，指示信息指示终端设备在接收多播业务使用的QoS流数量，则第二网络根据终端设备支持的最大QoS流数以及在接收多播业务使用的QoS流数量为终端设备配置用于单播业务的QoS流数。其中，终端设备支持的最大QoS流数可以是终端设备上报的，也可以是协议规定的。
又例如，指示信息指示终端设备在接收多播业务使用的MBS会话数量，第二网络根据终端设备支持的最大MBS会话数量以及在接收多播业务使用的MBS会话数量为终端设备配置用于单播业务的MBS会话数量。其中，终端设备支持的最大MBS会话数量可以是终端设备上报的，也可以是协议规定的。
又例如，指示信息指示终端设备接收多播业务使用的速率匹配图样数量，则第二网络根据终端设备支持的最大速率匹配图样数量以及在接收多播业务使用的速率匹配图样数量为终端设备配置用于单播业务的速率匹配图样数量。其中，终端设备支持的最大速率匹配图样数量可以是终端设备上报的，也可以是协议规定的。
需要说明的是，图11以终端设备向第二网络设备指示多播业务的相关参数为例进行说明，在具体实施中，终端设备也可以向第一网络设备指示单播业务的相关参数，从而第一网络设备可以根据该指示信息配置多播业务资源。其中，单播业务的相关参数与多播业务的相关参数类似，具体参阅上述S1101的相关描述，这里不再赘述。
其中，终端设备向第二网络设备指示多播业务的相关参数的实施方式以及终端设备向第一网络设备指示单播业务的相关参数的实施方式可以分别单独作为一个方案实施，也可以结合起来作为一个方案实施，这里不做具体限定。
通过本申请实施例中提供的方案，使得单播业务对应的网络设备(即第二网络设备)在终端设备的能力范围内为终端设备提供的单播业务，使得多播业务对应的网络设备(即第一网络设备)在终端设备的能力范围内为终端设备提供的多播业务，可以避免终端设备的单播业务和多播业务发生冲突。
基于与方法实施例的同一构思，本申请实施例提供一种通信装置，该通信装置的结构可以如图12所示，包括通信模块1201和处理模块1202。
在一种实施方式中，通信装置具体可以用于实现图4的实施例中终端设备执行的方法，该装置可以是终端设备本身，也可以是终端设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信模块1201，用于与网络设备进行通信；处理模块1202，用于通过通信模块1201向网络设备发送第一信息，第一信息指示支持或期望的具有反馈的最大HARQ进程数；以及，通过通信模块1201接收来自网络设备的第二信息，第二信息用于配置n个具有反馈的HARQ进程，n为大于0的整数，且n小于或等于第一信息指示的HARQ进程数。
可选的，处理模块1202，在通过通信模块1201向网络设备发送第一信息时，具体用于：通过通信模块1201向网络设备发送能力信息，能力信息携带第一信息；或，通过通信模块1201向网络设备发送辅助信息，辅助信息携带第一信息。
可选的，处理模块1202，在通过通信模块1201向网络设备发送第一信息时，具体用于：如果满足触发条件，通过通信模块1201向网络设备发送第一信息；或者，通过通信模块1201接收到来自网络设备的请求消息，通过通信模块1201向网络设备发送第一信息，请求消息用于请求第一信息。
可选的，处理模块1202，还用于：根据如下至少一项确定满足触发条件：第一缓存空间的占用情况、配置为具有反馈的HARQ进程的数量、或配置为无反馈的HARQ进程的数量，其中，第一缓存空间用于具有反馈的HARQ进程。
示例性的，触发条件包括如下至少一项：第一缓存空间的使用量超过第一阈值，或者，第一缓存空间的未使用量小于第二阈值；配置为具有反馈的HARQ进程的数量占第一HARQ进程数的比例超过第三阈值，或者，配置为无反馈的HARQ进程的数量占第一HARQ进程的总数的比例低于第四阈值；配置为具有反馈的HARQ进程的数量变化，或者，配置为具有反馈的HARQ进程的变化量超过第五阈值。
示例性的，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息为支持或期望的具有反馈的最大HARQ进程数；或者，第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；或者，第一信息指示第一缓存空间的大小，第一缓存空间用于具有反馈的HARQ进程。
可选的，处理模块1202，还用于：通过通信模块1201向网络设备发送第三信息和/或第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。
示例性的，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息包括第三信息和第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。
示例性的，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；或者，第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；或者，第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。
在一种实施方式中，通信装置具体可以用于实现图4的实施例中网络设备执行的方法，该装置可以是网络设备本身，也可以是网络设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信模块1201，用于与终端设备进行通信；处理模块1202，用于通过通信模块1201接收来自终端设备的第一信息，第一信息指示支持或期望的具有反馈的最大HARQ进程数；以及，通过通信模块1201向终端设备发送第二信息，第二信息用于配置n个具有反馈的HARQ进程，n为大于0的整数，且n小于或等于第一信息指示的HARQ进程数。
可选的，处理模块1202，在通过通信模块1201接收来自终端设备的第一信息时，具体用于：通过通信模块1201接收来自终端设备的能力信息，能力信息携带第一信息；或者，通过通信模块1201接收来自终端设备的辅助信息，辅助信息携带第一信息。
可选的，处理模块1202，还用于：通过通信模块1201向终端设备发送请求消息，请求消息用于请求第一信息。
示例性的，第一信息指示支持或期望的具有反馈的最大HARQ进程数，包括：第一信息为支持或期望的具有反馈的最大HARQ进程数；或者，第一信息为支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；或者，第一信息为第一缓存空间的大小，第一缓存空间用于具有反馈的HARQ进程。
可选的，处理模块1202，还用于：通过通信模块1201接收来自终端设备的第三信息和/或第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无 反馈的最大HARQ进程数。
示例性的，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息包括第三信息和第四信息，第三信息指示支持的最大HARQ进程数，第四信息指示支持或期望的无反馈的最大HARQ进程数。
示例性的，第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；或者，第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；或者，第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。
本申请实施例中对模块的划分是示意性的，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，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。可以理解的是，本申请实施例中各个模块的功能或者实现可以进一步参考方法实施例的相关描述。
一种可能的方式中，通信装置可以如图13所示，该装置可以是通信设备或者通信设备中的芯片，其中该通信设备可以为上述实施例中的终端设备也可以是上述实施例中的网络设备。该装置包括处理器1301和通信接口1302，还可以包括存储器1303。其中，处理模块1202可以为处理器1301。通信模块1201可以为通信接口1302。
处理器1301，可以是一个CPU，或者为数字处理单元等等。通信接口1302可以是收发器、也可以为接口电路如收发电路等、也可以为收发芯片等等。该装置还包括：存储器1303，用于存储处理器1301执行的程序。存储器1303可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器1303是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其它介质，但不限于此。
处理器1301用于执行存储器1303存储的程序代码，具体用于执行上述处理模块1202的动作，本申请在此不再赘述。通信接口1302具体用于执行上述通信模块1201的动作，本申请在此不再赘述。
本申请实施例中不限定上述通信接口1302、处理器1301以及存储器1303之间的具体连接介质。本申请实施例在图13中以存储器1303、处理器1301以及通信接口1302之间通过总线1304连接，总线在图13中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。总线可以分为地址总线、数据总线、控制总线等。为便于表示，图13中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
本申请实施例还提供了一种计算机可读存储介质，用于存储为执行上述处理器所需执行的计算机软件指令，其包含用于执行上述处理器所需执行的程序。
本申请实施例还提供一种通信系统，包括用于实现图4的实施例中终端设备功能的通信装置和用于实现图4的实施例中网络设备功能的通信装置。
本申请实施例还提供一种通信系统，包括用于实现图6的实施例中终端设备功能的通信装置和用于实现图6的实施例中网络设备功能的通信装置。
本申请实施例还提供一种通信系统，包括用于实现图11的实施例中终端设备功能的通信装置和用于实现图11的实施例中网络设备功能的通信装置。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (36)

  1. 一种通信方法，其特征在于，所述方法包括：
    向网络设备发送第一信息，所述第一信息指示支持或期望的具有反馈的最大混合式自动重传请求HARQ进程数；
    接收来自所述网络设备的第二信息，所述第二信息用于配置n个具有反馈的HARQ进程，所述n为大于0的整数，且所述n小于或等于所述第一信息指示的HARQ进程数。
  2. 如权利要求1所述的方法，其特征在于，所述向网络设备发送第一信息，包括：
    向所述网络设备发送能力信息，所述能力信息携带所述第一信息；
    或，向所述网络设备发送辅助信息，所述辅助信息携带所述第一信息。
  3. 如权利要求1或2所述的方法，其特征在于，所述向网络设备发送第一信息，包括：
    如果满足触发条件，向所述网络设备发送所述第一信息；
    或者，接收到来自所述网络设备的请求消息，向所述网络设备发送所述第一信息，所述请求消息用于请求所述第一信息。
  4. 如权利要求3所述的方法，其特征在于，所述方法还包括：
    根据如下至少一项确定满足所述触发条件：第一缓存空间的占用情况、配置为具有反馈的HARQ进程的数量、或配置为无反馈的HARQ进程的数量，所述第一缓存空间用于具有反馈的HARQ进程。
  5. 如权利要求3或4所述的方法，其特征在于，所述触发条件包括如下至少一项：
    所述第一缓存空间的使用量超过第一阈值，或者，所述第一缓存空间的未使用量小于第二阈值；
    配置为具有反馈的HARQ进程的数量占第一HARQ进程数的比例超过第三阈值，或者，配置为无反馈的HARQ进程的数量占所述第一HARQ进程的总数的比例低于第四阈值；
    配置为具有反馈的HARQ进程的数量变化，或者，配置为具有反馈的HARQ进程的变化量超过第五阈值。
  6. 如权利要求1-5任一项所述的方法，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    所述第一信息为支持或期望的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；
    或者，所述第一信息指示第一缓存空间的大小，所述第一缓存空间用于具有反馈的HARQ进程。
  7. 如权利要求1-6任一项所述的方法，其特征在于，所述方法还包括：
    向所述网络设备发送第三信息和/或第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  8. 如权利要求1所述的方法，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    第一信息包括第三信息和第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  9. 如权利要求1-8任一项所述的方法，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    所述第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。
  10. 一种通信方法，其特征在于，所述方法包括：
    接收来自终端设备的第一信息，所述第一信息指示支持或期望的具有反馈的最大混合式自动重传请求HARQ进程数；
    向所述终端设备发送第二信息，所述第二信息用于配置n个具有反馈的HARQ进程，所述n为大于0的整数，且所述n小于或等于所述第一信息指示的HARQ进程数。
  11. 如权利要求10所述的方法，其特征在于，所述接收来自终端设备的第一信息，包括：
    接收来自所述终端设备的能力信息，所述能力信息携带所述第一信息；
    或者，接收来自所述终端设备的辅助信息，所述辅助信息携带所述第一信息。
  12. 如权利要求11所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送请求消息，所述请求消息用于请求所述第一信息。
  13. 如权利要求10-12任一项所述的方法，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，包括：
    所述第一信息为支持或期望的具有反馈的最大HARQ进程数；
    或者，所述第一信息为支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；
    或者，所述第一信息为第一缓存空间的大小，所述第一缓存空间用于具有反馈的HARQ进程。
  14. 如权利要求10-13任一项所述的方法，其特征在于，所述方法还包括：
    接收来自所述终端设备的第三信息和/或第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  15. 如权利要求10所述的方法，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    第一信息包括第三信息和第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  16. 如权利要求10-15任一项所述的方法，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    所述第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。
  17. 一种通信装置，其特征在于，所述装置包括：
    通信模块，用于与网络设备进行通信；
    处理模块，用于通过所述通信模块向网络设备发送第一信息，所述第一信息指示支持 或期望的具有反馈的最大混合式自动重传请求HARQ进程数；
    以及，通过所述通信模块接收来自所述网络设备的第二信息，所述第二信息用于配置n个具有反馈的HARQ进程，所述n为大于0的整数，且所述n小于或等于所述第一信息指示的HARQ进程数。
  18. 如权利要求17所述的装置，其特征在于，所述处理模块，在通过所述通信模块向网络设备发送第一信息时，具体用于：
    通过所述通信模块向所述网络设备发送能力信息，所述能力信息携带所述第一信息；
    或，通过所述通信模块向所述网络设备发送辅助信息，所述辅助信息携带所述第一信息。
  19. 如权利要求17或18所述的装置，其特征在于，所述处理模块，在通过所述通信模块向网络设备发送第一信息时，具体用于：
    如果满足触发条件，通过所述通信模块向所述网络设备发送所述第一信息；
    或者，通过所述通信模块接收到来自所述网络设备的请求消息，通过所述通信模块向所述网络设备发送所述第一信息，所述请求消息用于请求所述第一信息。
  20. 如权利要求19所述的装置，其特征在于，所述处理模块，还用于：
    根据如下至少一项确定满足所述触发条件：第一缓存空间的占用情况、配置为具有反馈的HARQ进程的数量、或配置为无反馈的HARQ进程的数量，所述第一缓存空间用于具有反馈的HARQ进程。
  21. 如权利要求19或20所述的装置，其特征在于，所述触发条件包括如下至少一项：
    所述第一缓存空间的使用量超过第一阈值，或者，所述第一缓存空间的未使用量小于第二阈值；
    配置为具有反馈的HARQ进程的数量占第一HARQ进程数的比例超过第三阈值，或者，配置为无反馈的HARQ进程的数量占所述第一HARQ进程的总数的比例低于第四阈值；
    配置为具有反馈的HARQ进程的数量变化，或者，配置为具有反馈的HARQ进程的变化量超过第五阈值。
  22. 如权利要求17-21任一项所述的装置，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    所述第一信息为支持或期望的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；
    或者，所述第一信息指示第一缓存空间的大小，所述第一缓存空间用于具有反馈的HARQ进程。
  23. 如权利要求17-22任一项所述的装置，其特征在于，所述处理模块，还用于：
    通过所述通信模块向所述网络设备发送第三信息和/或第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  24. 如权利要求17所述的装置，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    第一信息包括第三信息和第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  25. 如权利要求17-24任一项所述的装置，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    所述第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。
  26. 一种通信装置，其特征在于，所述装置包括：
    通信模块，用于与终端设备进行通信；
    处理模块，用于通过所述通信模块接收来自终端设备的第一信息，所述第一信息指示支持或期望的具有反馈的最大混合式自动重传请求HARQ进程数；
    以及，通过所述通信模块向所述终端设备发送第二信息，所述第二信息用于配置n个具有反馈的HARQ进程，所述n为大于0的整数，且所述n小于或等于所述第一信息指示的HARQ进程数。
  27. 如权利要求26所述的装置，其特征在于，所述处理模块，在通过所述通信模块接收来自终端设备的第一信息时，具体用于：
    通过所述通信模块接收来自所述终端设备的能力信息，所述能力信息携带所述第一信息；
    或者，通过所述通信模块接收来自所述终端设备的辅助信息，所述辅助信息携带所述第一信息。
  28. 如权利要求27所述的装置，其特征在于，所述处理模块，还用于：
    通过所述通信模块向所述终端设备发送请求消息，所述请求消息用于请求所述第一信息。
  29. 如权利要求26-28任一项所述的装置，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，包括：
    所述第一信息为支持或期望的具有反馈的最大HARQ进程数；
    或者，所述第一信息为支持或期望的具有反馈的最大HARQ进程数占支持的最大HARQ进程数的比例；
    或者，所述第一信息为第一缓存空间的大小，所述第一缓存空间用于具有反馈的HARQ进程。
  30. 如权利要求26-29任一项所述的装置，其特征在于，所述处理模块，还用于：
    通过所述通信模块接收来自所述终端设备的第三信息和/或第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  31. 如权利要求26所述的装置，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    第一信息包括第三信息和第四信息，所述第三信息指示支持的最大HARQ进程数，所述第四信息指示支持或期望的无反馈的最大HARQ进程数。
  32. 如权利要求26-31任一项所述的装置，其特征在于，所述第一信息指示支持或期望的具有反馈的最大HARQ进程数，具体包括：
    所述第一信息指示至少一个小区分别对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段对应的具有反馈的最大HARQ进程数；
    或者，所述第一信息指示至少一个频段组合分别对应的具有反馈的最大HARQ进程数。
  33. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述处理器与所述存储器耦合；
    所述存储器，用于存储程序或指令；
    所述处理器，用于调用所述程序或指令使所述通信装置执行如权利要求1-9中任一项所述的方法。
  34. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述处理器与所述存储器耦合；
    所述存储器，用于存储程序或指令；
    所述处理器，用于调用所述程序或指令使所述通信装置执行如权利要求10-16中任一项所述的方法。
  35. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行如权利要求1～9中任意一项所述的方法。
  36. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机指令，当所述计算机指令在计算机上运行时，使得所述计算机执行如权利要求10～16中任意一项所述的方法。
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