Method, communication device, and storage medium for determining feedback mode

Abstract

The embodiments of the present application provide a method, a communication device, and a storage medium for determining a feedback manner. The method includes: determining a feedback manner of a terminal device for a data reception situation; sending first indication information to the terminal device; the first indication information is used to indicate the feedback manner, and the terminal device determines the feedback manner of the terminal device for the data reception situation according to the first indication information. The method, the communication device, and the storage medium for determining the feedback manner provided by the embodiments of the present application can dynamically adjust the feedback manner of the terminal device for the data reception situation, and improve the flexibility of the terminal device to feedback the data reception situation.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technologies, and in particular, to a method for determining a feedback manner, a communication device, and a storage medium. Background Art

[0002] In the communication of the fifth-generation mobile communication system (5G), large-scale antenna arrays are widely used. The large-scale antenna array can form one or more beams to improve the coverage range of wireless signals and reduce the mutual interference of wireless networks. When the large-scale antenna array is applied to a network device, the network device can form one or more downlink beams to connect to a terminal device. When the large-scale antenna array is applied to a terminal device, such a large-scale antenna array can form a filter with a spatial filtering function, so that the terminal device can simultaneously receive data sent by the network device through multiple downlink beams.

[0003] For example, the network device can send data to the terminal device through the beams of multiple transmitting and receiving points (TRPs), and the terminal device can receive data from the beams of multiple TRPs through multiple antennas or a large-scale antenna array, enhancing the selectivity of data transmission between the terminal device and the network device.

[0004] An important feature of the physical downlink shared channel (PDSCH) is that it supports hybrid automatic repeat request (HARQ). After receiving the data sent by the network device through the PDSCH, the terminal device can, according to the demodulation situation of the data, feedback an acknowledgement / non-acknowledgement (ACK / NACK) to the network device to inform the network device whether the received data is correct.

[0005] Currently, when the network device sends data to the terminal device, how the terminal device determines the feedback manner for the data reception situation is an urgent problem to be solved.

[0006] The foregoing description is for the purpose of providing general background information and does not necessarily constitute prior art. Summary of the Invention

[0007] Embodiments of the present application provide a method for determining a feedback manner, a communication device, and a storage medium. When the network device sends data to the terminal device, the terminal device can determine the feedback manner for the data reception situation.

[0008] In a first aspect, an embodiment of the present application provides a method for determining a feedback manner. This method can be applied to a network device or a chip in the network device. The method includes: determining a feedback manner of a terminal device for a data reception situation; and sending first indication information to the terminal device, where the first indication information is used to indicate the feedback manner.

[0009] Through the method provided in the first aspect, in a scenario where a network device sends data to a terminal device, after determining the feedback manner of the terminal device for the data reception situation, the network device can indicate the determined feedback manner to the terminal device through the first indication information. This method can dynamically adjust the feedback manner of the terminal device for the data reception situation, improving the flexibility of the terminal device to feedback the data reception situation.

[0010] Optionally, the feedback manner includes: combined feedback, and / or, separate feedback, where the combined feedback is that the terminal device feedbacks the reception situation of the data received on a downlink beam on a first uplink beam, and the separate feedback is that the terminal device feedbacks the reception situation of the data received on the downlink beam through the uplink beam corresponding to the downlink beam.

[0011] Through this optional manner, when combined feedback is adopted, the uplink beam for feedbacking the data reception situation can be selected according to the actual situation, improving the flexibility of feedbacking the reception situation. When separate feedback is adopted, the reception situation of the data can be sent in real time, improving the transmission efficiency.

[0012] Optionally, the feedback manner is related to the transmission parameter of the data, and / or related to the channel quality of the uplink beam of the terminal device.

[0013] For example, the transmission parameter is the transmission manner of the data; if the transmission manner of the data is a discontinuous transmission manner, then the feedback manner is combined feedback; and / or, if the transmission manner of the data is a continuous transmission manner, then the feedback manner is separate feedback.

[0014] Through this optional manner, the feedback manner of the terminal device for the data reception situation can be dynamically adjusted according to the transmission parameter of the data, improving the flexibility of the terminal device to feedback the data reception situation.

[0015] For another example, it includes at least one of the following. If the channel quality of at least one uplink beam in the uplink beams is greater than or equal to the second channel quality threshold, the feedback mode is a combined feedback; if the channel quality of all the uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback mode is a separate feedback; if the channel quality of at least one uplink beam in the uplink beams is less than the first channel quality threshold, the feedback mode is a combined feedback; the second channel quality threshold is greater than the first channel quality threshold.

[0016] Through this optional method, the feedback mode of the terminal device for the data reception situation can be dynamically adjusted according to the channel quality of the uplink beam, improving the flexibility of the terminal device to feedback the data reception situation.

[0017] Optionally, if the feedback mode is the combined feedback, in one possible implementation, the first indication information is further used to indicate the first uplink beam. In another possible implementation, the network device sends the second indication information to the terminal device; the second indication information is used to indicate the first uplink beam.

[0018] Through this optional method, when the feedback mode is the combined feedback, a flexible method can be adopted to indicate the uplink beam for feedback on the reception situation of the data received on the downlink beam.

[0019] Optionally, the first uplink beam is the uplink beam with the best channel quality among the uplink beams.

[0020] In a second aspect, an embodiment of the present application provides a method for determining a feedback mode. This method can be applied to a terminal device or a chip in the terminal device. The method includes: receiving first indication information; determining, according to the first indication information, the feedback mode of the terminal device for the data reception situation, where the first indication information is used to indicate the feedback mode of the terminal device for the data reception situation.

[0021] Optionally, the feedback mode includes: combined feedback, and / or, separate feedback, where the combined feedback is that the terminal device feeds back the reception situation of the data received on the downlink beam on the first uplink beam, and the separate feedback is that the terminal device feeds back the reception situation of the data received on the downlink beam through the uplink beam corresponding to the downlink beam.

[0022] Optionally, the feedback mode is related to the transmission parameters of the data, and / or related to the channel quality of the uplink beam of the terminal device.

[0023] For example, the transmission parameter is the transmission mode of the data; if the transmission mode of the data is a discontinuous transmission mode, the feedback mode is a combined feedback; and / or, if the transmission mode of the data is a continuous transmission mode, the feedback mode is a separate feedback.

[0024] For another example, it includes at least one of the following. If there is at least one uplink beam whose channel quality in the uplink beam is greater than or equal to a second channel quality threshold, the feedback mode is a combined feedback; if the channel quality of all uplink beams is greater than or equal to a first channel quality threshold and less than the second channel quality threshold, the feedback mode is a separate feedback; if there is at least one uplink beam whose channel quality in the uplink beam is less than the first channel quality threshold, the feedback mode is a combined feedback; the second channel quality threshold is greater than the first channel quality threshold.

[0025] Optionally, if the feedback mode is the combined feedback, in one possible implementation, the first indication information is further used to indicate a first uplink beam. In another possible implementation, the terminal device receives second indication information; the second indication information is used to indicate the first uplink beam.

[0026] Optionally, the first uplink beam is the uplink beam with the best channel quality in the uplink beam.

[0027] Optionally, the method further includes: receiving data, and feedbacking the reception situation of the data according to the feedback mode indicated by the first indication information; the data is sent by the network device using at least one downlink beam.

[0028] Through this optional manner, the terminal device can, according to the indication of the network device, when adopting combined feedback, select the uplink beam for feedbacking the data reception situation according to the actual situation, improving the flexibility of feedbacking the reception situation; when adopting separate feedback, it can send the reception situation of the data in real time, improving the transmission efficiency.

[0029] Optionally, the step of feedbacking the reception situation of the data according to the feedback mode indicated by the first indication information includes:

[0030] Generating a codebook of the data received from each downlink beam according to the feedback mode indicated by the first indication information; the codebook is used to indicate the reception situation of the data received on the downlink beam, and the codebook establishes an index with the uplink beam corresponding to the codebook; sending the codebook on the uplink beam corresponding to each codebook according to the index.

[0031] Optionally, the codebook is a static codebook or a dynamic codebook.

[0032] Through this optional method, the terminal device can, according to the feedback method indicated by the first indication information, send the data reception situation in the form of a codebook through the uplink beam corresponding to each codebook according to the index, so as to improve the efficiency.

[0033] For the method of determining the feedback method provided by each possible method in the second aspect above, the beneficial effects can refer to the beneficial effects brought by each possible method in the first aspect above, which will not be elaborated here.

[0034] In a third aspect, an embodiment of the present application provides a method for determining a feedback method. This method can be applied to a terminal device or a chip in the terminal device. The method includes: receiving data sent by a network device using at least one downlink beam; generating a codebook for the data; the codebook is used to indicate the reception situation of the data received on the downlink beam, and the codebook is indexed with the uplink beam corresponding to the codebook; and sending the codebook on the uplink beam corresponding to each codebook according to the index.

[0035] Optionally, the codebook is a static codebook or a dynamic codebook.

[0036] Through this method, the data reception situation can be sent to the network device in the form of a codebook through the uplink beam corresponding to each codebook according to the index, so as to improve the efficiency.

[0037] In a fourth aspect, an embodiment of the present application provides a communication device, and the device includes:

[0038] A processing module, configured to determine a feedback method for the terminal device regarding the data reception situation.

[0039] A sending module, configured to send first indication information to the terminal device, where the first indication information is used to indicate the feedback method.

[0040] Optionally, the feedback method includes: combined feedback, and / or, separate feedback, where the combined feedback is that the terminal device feeds back the reception situation of the data received on the downlink beam on the first uplink beam, and the separate feedback is that the terminal device feeds back the reception situation of the data received on the downlink beam through the uplink beam corresponding to the downlink beam.

[0041] Optionally, the feedback method is related to the transmission parameters of the data, and / or related to the channel quality of the uplink beam of the terminal device.

[0042] For example, the transmission parameter is the transmission method of the data; if the transmission method of the data is a discontinuous transmission method, the feedback method is combined feedback; and / or, if the transmission method of the data is a continuous transmission method, the feedback method is separate feedback.

[0043] For another example, it includes at least one of the following. If the channel quality of at least one uplink beam in the uplink beams is greater than or equal to a second channel quality threshold, the feedback mode is a combined feedback; if the channel quality of all the uplink beams is greater than or equal to a first channel quality threshold and less than the second channel quality threshold, the feedback mode is a separate feedback; if there is at least one uplink beam in the uplink beams whose channel quality is less than the first channel quality threshold, the feedback mode is a combined feedback; the second channel quality threshold is greater than the first channel quality threshold.

[0044] Optionally, if the feedback mode is the combined feedback, in one possible implementation, the first indication information is further used to indicate a first uplink wave. In another possible implementation, the sending module is further configured to send second indication information to the terminal device; the second indication information is used to indicate the first uplink beam.

[0045] Optionally, the first uplink beam is the uplink beam with the best channel quality among the uplink beams.

[0046] For the communication device provided by each possible manner of the fourth aspect above, the beneficial effects can refer to the beneficial effects brought by each possible manner of the first aspect above, which will not be elaborated here.

[0047] In a fifth aspect, an embodiment of the present application further provides a communication device, and the device includes:

[0048] a receiving module, configured to receive first indication information; the first indication information is used to indicate the feedback mode;

[0049] a processing module, configured to determine the feedback mode of the terminal device for the data reception situation according to the first indication information.

[0050] Optionally, the feedback mode includes: combined feedback, and / or, separate feedback, where the combined feedback is that the terminal device feeds back the reception situation of the data received on the downlink beam on the first uplink beam, and the separate feedback is that the terminal device feeds back the reception situation of the data received on the downlink beam through the uplink beam corresponding to the downlink beam.

[0051] Optionally, the feedback mode is related to the transmission parameters of the data, and / or related to the channel quality of the uplink beam of the terminal device.

[0052] For example, the transmission parameter is the transmission mode of the data; if the transmission mode of the data is a discontinuous transmission mode, the feedback mode is a combined feedback; and / or, if the transmission mode of the data is a continuous transmission mode, the feedback mode is a separate feedback.

[0053] For another example, it includes at least one of the following: if there is at least one uplink beam whose channel quality in the uplink beam is greater than or equal to the second channel quality threshold, the feedback mode is a combined feedback; if the channel quality of all uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback mode is a separate feedback; if there is at least one uplink beam whose channel quality in the uplink beam is less than the first channel quality threshold, the feedback mode is a combined feedback; the second channel quality threshold is greater than the first channel quality threshold.

[0054] Optionally, if the feedback mode is the combined feedback, in one possible implementation, the first indication information is further used to indicate the first uplink beam. In another possible implementation, the receiving module is further configured to receive second indication information sent by a network device; the second indication information is used to indicate the first uplink beam.

[0055] Optionally, the first uplink beam is the uplink beam with the best channel quality among the uplink beams.

[0056] Optionally, the apparatus further includes: a sending module;

[0057] The receiving module is further configured to receive data sent by a network device using at least one downlink beam;

[0058] The sending module is configured to feedback the reception situation of the data according to the feedback mode indicated by the first indication information.

[0059] Optionally, the sending module is specifically configured to generate a codebook of the data received from each downlink beam according to the feedback mode indicated by the first indication information; the codebook is used to indicate the reception situation of the data received on the downlink beam, and the codebook establishes an index with the uplink beam corresponding to the codebook; according to the index, the codebook is sent on the uplink beam corresponding to each codebook.

[0060] Optionally, the codebook is a static codebook or a dynamic codebook.

[0061] For the communication apparatus provided by each possible manner of the fifth aspect above, the beneficial effects can refer to the beneficial effects brought by each possible manner of the second aspect above, and will not be elaborated here.

[0062] Sixth aspect, an embodiment of the present application provides a communication device, which includes:

[0063] A receiving module, configured to receive data, where the data is sent by a network device using at least one downlink beam;

[0064] A processing module, configured to generate a codebook for the data; the codebook is used to indicate the reception situation of the data received on the downlink beam, and the codebook establishes an index with the uplink beam corresponding to the codebook;

[0065] A sending module, configured to send the codebook on the uplink beam corresponding to each codebook according to the index.

[0066] Optionally, the codebook is a static codebook or a dynamic codebook.

[0067] For the communication device provided by each possible manner of the above sixth aspect, the beneficial effects can refer to the beneficial effects brought by each possible manner of the above third aspect, which will not be elaborated here.

[0068] Seventh aspect, an embodiment of the present application provides a communication device, including: at least one processor and a memory;

[0069] The memory stores computer-executable instructions;

[0070] The at least one processor executes the computer-executable instructions stored in the memory, so that the device executes the method described in the first aspect or each possible manner of the first aspect.

[0071] Eighth aspect, an embodiment of the present application provides a communication device, including: at least one processor and a memory;

[0072] The memory stores computer-executable instructions;

[0073] The at least one processor executes the computer-executable instructions stored in the memory, so that the device executes the method described in the second aspect or each possible manner of the second aspect.

[0074] Ninth aspect, an embodiment of the present application provides a communication device, including: at least one processor and a memory;

[0075] The memory stores computer-executable instructions;

[0076] The at least one processor executes the computer-executable instructions stored in the memory, so that the device executes the method described in the third aspect or each possible manner of the third aspect.

[0077] In a tenth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, the method described in the first aspect or any possible implementation manner of the first aspect is implemented.

[0078] In an eleventh aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, the method described in the second aspect or any possible implementation manner of the second aspect is implemented.

[0079] In a twelfth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, the method described in the third aspect or any possible implementation manner of the third aspect is implemented.

[0080] In a thirteenth aspect, an embodiment of the present application provides a chip, on which a computer program is stored. When the computer program is executed by a processor, the method described in the first aspect or any possible implementation manner of the first aspect as described above is executed.

[0081] In a fourteenth aspect, an embodiment of the present application provides a chip, on which a computer program is stored. When the computer program is executed by a processor, the method described in the second aspect or any possible implementation manner of the second aspect as described above is executed.

[0082] In a fifteenth aspect, an embodiment of the present application provides a chip, on which a computer program is stored. When the computer program is executed by a processor, the method described in the third aspect or any possible implementation manner of the third aspect as described above is executed.

[0083] In a sixteenth aspect, an embodiment of the present application provides a computer program product containing instructions. When it runs on a computer, the computer is caused to execute the method in the first aspect or any possible implementation manner of the first aspect as described above.

[0084] In a seventeenth aspect, an embodiment of the present application provides a computer program product containing instructions. When it runs on a computer, the computer is caused to execute the method in the second aspect or any possible implementation manner of the second aspect as described above.

[0085] In an eighteenth aspect, an embodiment of the present application provides a computer program product containing instructions. When it runs on a computer, the computer is caused to execute the method in the third aspect or any possible implementation manner of the third aspect as described above.

[0086] The method, communication device, and storage medium for determining a feedback manner provided by an embodiment of the present application, in a scenario where a network device sends data to a terminal device, after determining the feedback manner of the terminal device for the data reception situation, the network device may indicate the determined feedback manner to the terminal device through first indication information. This method can dynamically adjust the feedback manner of the terminal device for the data reception situation, improving the flexibility of the terminal device to feedback the data reception situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0088] Figure 1 is a schematic diagram of the architecture of a communication system applied in an embodiment of the present application;

[0089] Figure 2 is a schematic diagram of the architecture of another communication system applied in an embodiment of the present application;

[0090] Figure 3 is a schematic flowchart of a method for determining a feedback manner provided by an embodiment of the present application;

[0091] Figure 4 is a schematic flowchart of another method for determining a feedback manner provided by an embodiment of the present application;

[0092] Figure 5 is a schematic diagram of the structure of a communication device provided by an embodiment of the present application;

[0093] Figure 6 is a schematic diagram of the structure of another communication device provided by an embodiment of the present application;

[0094] Figure 7 is a schematic diagram of the structure of yet another communication device provided by an embodiment of the present application;

[0095] Figure 8 is a schematic diagram of the structure of still another communication device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0096] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0097] The embodiments of this application can be applied to the fifth-generation (5G) mobile communication system or the new radio (NR) system, future communication systems (such as the sixth-generation mobile communication system), etc. The 5G mentioned in the embodiments of this application can be a 5G mobile communication system including non-standalone (NSA) and / or standalone (SA). The communication system to which the embodiments of this application are applied can also be a public land mobile network (PLMN) network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, an Internet of Things (IoT) network, or other networks.

[0098] To better understand the technical solutions of this application, the terms and application scenarios involved in this application will be introduced in detail first.

[0099] Transmitting and receiving point (TRP): The TRP is used to receive and transmit wireless signals. The TRP can be, for example, a base transceiver station (BTS), an evolved NodeB (eNB or eNodeB), a radio controller, a centralized unit (CU) node, a distributed unit (DU) node, or a radio access network (RAN) device including a CU node and a DU node, etc.

[0100] Antenna panel: A device for transmitting and receiving wireless signals.

[0101] Hybrid Automatic Repeat Request (HARQ): A technology that combines Forward Error Correction (FEC) and Automatic Repeat Request (ARQ). Redundant information can be added to the transmitted data through FEC. In this way, after receiving the data, the receiving end can use an error detection code, such as Cyclic Redundancy Check (CRC), to detect whether the received data is in error. At the same time, during the detection process, the receiving end can correct some errors through the redundant information in the data to reduce the number of data retransmissions. If the receiving end determines that the data is correct (i.e., the CRC check is successful), the receiving end can send an affirmative acknowledgment (ACK) to the sending end to notify that the data has been correctly received. If the receiving end detects that the data is in error (i.e., the CRC check fails), that is, an error that cannot be corrected by FEC, the receiving end can request the sending end to retransmit the data through the ARQ mechanism. Specifically, the receiving end can send a negative acknowledgment (NACK) to the sending end to notify that the data reception has failed. After receiving the NACK of the data, the sending end will retransmit the data. Among them, the above-mentioned ACK and NACK can be collectively referred to as HARQ-ACK information.

[0102] Downlink data channel: A physical channel that carries downlink data. For example, the Physical Downlink Shared Channel (PDSCH).

[0103] HARQ-ACK codebook: When it is necessary to feedback the reception situation of data, the feedback HARQ-ACK information constitutes the HARQ-ACK codebook. Currently, the HARQ-ACK codebook is divided into two types, namely the semi-static HARQ-ACK codebook and the dynamic HARQ-ACK codebook.

[0104] Figure 1 It is a schematic diagram of the architecture of a communication system applied in the embodiments of this application. As Figure 1As shown in the figure, the communication system may include: a network device 11 and a terminal device 12. Among them, the network device 11 may be communicatively connected to the terminal device 11 through multiple beams. For example, the network device 11 may be communicatively connected to the terminal device 11 through multiple beams formed by multiple panels. In downlink transmission, the network device may send data to the terminal device through multiple downlink beams. In uplink transmission, the terminal device may also send data to the network device through multiple uplink beams. The terminal device may be in a fixed position or movable. For example, in some cases, the uplink beam and the downlink beam may form a beam pair to enable data to be transmitted in the beam pair.

[0105] Figure 2 It is a schematic diagram of the architecture of another communication system to which the embodiments of the present application are applied. As Figure 2 shown in the figure, in this communication system, the network device 11 may include multiple TRPs ( Figure 2 taking two TRPs (111a and 111b) as an example), each TRP may form multiple beams, and the terminal device 11 may be connected to the network device 11 through multiple beams formed by multiple TRPs. For example, each TRP may include at least one panel, and each panel may form at least one beam.

[0106] The terminal device in the embodiments of the present application may refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile device, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (PLMN), etc. The embodiments of the present application are not limited thereto.

[0107] By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. A wearable device, also known as a wearable intelligent device, is a general term for devices developed by applying wearable technology to the intelligent design of daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not just a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions and large sizes that can achieve complete or partial functions without relying on a smartphone, such as smart watches or smart glasses, etc., and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones, such as various smart bracelets and smart jewelry for physical sign monitoring.

[0108] In addition, in the embodiments of the present application, the terminal device may also be a terminal device in an IoT network. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-object interconnection. In the embodiments of the present application, IoT technology can achieve massive connection, deep coverage, and low power consumption of terminals through, for example, narrow band (NB) technology.

[0109] In addition, in the embodiments of the present application, the terminal device may also include sensors such as intelligent printers, train detectors, and gas stations. The main functions include collecting data (for some terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0110] The network device in the embodiments of this application can be a device for communicating with a terminal device, which is an access device for the terminal device to access the mobile communication system wirelessly. The network device can be a base transceiver station (BTS) in a global system for mobile communications (GSM) system or a code division multiple access (CDMA) system, or a NodeB (NB) in a wideband code division multiple access (WCDMA) system, or an evolved NodeB (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario. Or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, etc. The embodiments of this application do not limit this. In a network structure, the network device can include a centralized unit (CU) node, or a distributed unit (DU) node, or a radio access network (RAN) device including a CU node and a DU node.

[0111] In the embodiments of this application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement service processing through processes. For example, the Linux operating system, the Unix operating system, the Android operating system, the iOS operating system, or the Windows operating system, etc. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. Moreover, the embodiments of this application do not particularly limit the specific structure of the execution subject of the method provided in the embodiments of this application. As long as it can communicate according to the method provided in the embodiments of this application by running a program recorded with the code of the method provided in the embodiments of this application. For example, the execution subject of the method provided in the embodiments of this application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.

[0112] In the embodiments of the present application, the network device and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed on airplanes, balloons, and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the network device and the terminal device.

[0113] The network device and the terminal device can communicate through licensed spectrum, or through unlicensed spectrum, or through both licensed spectrum and unlicensed spectrum at the same time. The network device and the terminal device can communicate through spectrum below 6 gigahertz (GHz), or through spectrum above 6 GHz, or through both spectrum below 6 GHz and spectrum above 6 GHz at the same time. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

[0114] When the transmission direction of the communication system is uplink transmission, the terminal device 12 is the sender and the network device 11 is the receiver. When the transmission direction of the communication system is downlink transmission, the network device 11 is the sender and the terminal device 12 is the receiver.

[0115] It should be understood that Figure 1 Or Figure 2 The network device 11 below can include one or more cells.

[0116] It should be understood that the technical solutions of the embodiments of the present application can be applied to single-carrier or carrier aggregation (CA) scenarios, or dual connectivity (DC) scenarios, or coordinated multipoint transmission / reception (CoMP) scenarios. Among them, CoMP can be one or more scenarios such as non coherent joint transmission (NCJT), coherent joint transmission (CJT), and joint transmission (JT).

[0117] Exemplarily, Figure 1 Or Figure 2 The shown communication system can be, for example, in a single-carrier scenario or a carrier aggregation (CA) scenario.

[0118] It should be understood that the above Figure 1 OrFigure 2 The communication system shown is only an example, and the communication systems applicable to the embodiments of the present application are not limited thereto. For example, other network devices may also be included in the communication system, such as wireless relay devices and wireless backhaul devices, etc., which are not drawn in Figure 1 、 Figure 2 . The embodiments of the present application do not limit the number of network devices and terminal devices included in the communication system.

[0119] In downlink transmission, downlink data is usually carried by the PDSCH, and HARQ is used to ensure the reliability and transmission efficiency of physical layer data transmission. When the network device sends data to the terminal device and the terminal device receives the data, it tries to demodulate the received data. If the demodulation is successful, a 1-bit ACK is fed back to the network device through the physical uplink control channel (PUCCH) to indicate successful data reception; if the demodulation fails, a 1-bit NACK is fed back to the network device through the PUCCH to indicate failed data reception, and at this time the network device needs to retransmit the data.

[0120] In the schematic diagram as shown in Figure 1 or Figure 2 , when the network device 11 sends data to the terminal device 12, how the terminal device 12 determines the feedback method for the data reception situation is an urgent problem to be solved.

[0121] In view of the above problems, the method, communication device and storage medium for determining the feedback method provided by the embodiments of the present application can flexibly indicate the feedback method of the terminal device for the data reception situation in the scenario where the network device can transmit data to the terminal device.

[0122] The technical solutions of the method for determining the feedback method provided by the present application will be described in detail below in conjunction with several specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0123] Figure 3 is a flowchart of a method for determining a feedback method provided by an embodiment of the present application. As shown in Figure 3 , the method may include:

[0124] S101. The network device determines the feedback method of the terminal device for the data reception situation.

[0125] Optionally, in a possible implementation manner, the feedback method includes combined feedback, or separate feedback, or combined feedback and separate feedback.

[0126] The first method: combined feedback.

[0127] Combined feedback means that the terminal device feeds back the reception situation of the data received on the downlink beam on the first uplink beam. Exemplarily, the combined feedback may be that the terminal device feeds back the reception situation of the data received on at least two downlink beams on the first uplink beam.

[0128] Among them, the reception situation of the data received on at least two downlink beams can be fed back as a whole or separately. For example, the reception situation of the data can be fed back through a HARQ-ACK codebook. When using a HARQ-ACK codebook for feedback, the reception situation of the data received on each downlink beam can be fed back on the first uplink beam through a HARQ-ACK codebook, or the reception situation of the data received on some downlink beams can be fed back on the first uplink beam through a HARQ-ACK codebook, or the reception situation of the data received on each downlink beam can be fed back on the first uplink beam through respective independent HARQ-ACK codebooks. Among them, the first uplink beam can form a beam pair with one of the at least two downlink beams.

[0129] In combined feedback, the terminal device can feed back the reception situation of the data received from the downlink beam on an uplink beam. Since this method can select the uplink beam for feeding back the reception situation of the data according to the actual situation, the flexibility of feeding back the reception situation is improved. When the reception situation of the data received on the downlink beam is fed back as a whole, the number of times of feeding back the reception situation of the data can be reduced, and thus the overhead of sending the reception situation of the data can be reduced, saving network resources.

[0130] The second method: separate feedback.

[0131] Separate feedback means that the terminal device feeds back the reception situation of the data received on the downlink beam through the uplink beam corresponding to each downlink beam.

[0132] In separate feedback, the terminal device can independently feed back the reception situation of the data received on the downlink beam through the uplink beam corresponding to each downlink beam. This method can send the reception situation of the data in real time, improving the transmission efficiency. Among them, the reception situation of the data can be fed back through a HARQ-ACK codebook.

[0133] S102. The network device sends first indication information to the terminal device.

[0134] Correspondingly, the terminal device receives the first indication information.

[0135] Among them, the first indication information is used to indicate the feedback mode of the data reception situation. For example, the first indication information can be a bit. When the value of this bit is 1, it is used to indicate combined feedback. When the value of this bit is 0, it is used to indicate separate feedback. Or, when the value of this bit is 0, it is used to indicate combined feedback. When the value of this bit is 1, it is used to indicate separate feedback.

[0136] In a possible implementation manner, the network device may carry the first indication information in the downlink control information (DCI) and send it to the terminal device through the physical downlink control channel (PDCCH). At this time, the first indication information may be a newly added field in the DCI or a reused existing field in the DCI.

[0137] In another possible implementation manner, the network device may also carry the first indication information in the high-layer signaling, and the network device sends the first indication information to the terminal device through the high-layer signaling. It should be understood that the high-layer signaling mentioned here may be, for example, radio resource control (RRC) signaling, media access control (MAC) signaling, etc.

[0138] S103. The terminal device determines the feedback mode of the terminal device for the data reception situation according to the first indication information.

[0139] After the terminal device determines the feedback mode for the data reception situation, when receiving data, it can feedback the data reception situation according to this feedback mode.

[0140] Optionally, the terminal device may also save the first indication information. For example, the terminal device may save the first indication information and delete it when the preset storage duration is reached. Or, the terminal device may delete the previously saved first indication information when receiving new first indication information. Or, the terminal device may delete it after performing corresponding operations (such as feedback the data reception situation) based on the first indication information, etc.

[0141] Optionally, in some possible implementation manners, when the feedback mode of the data reception situation is combined feedback, the first indication information is further used to indicate the first uplink beam.

[0142] For example, when the first indication information uses one bit to indicate combined feedback or separate feedback, at least one bit can also be used to indicate the first uplink beam. The number of bits used to indicate the first uplink beam depends on the number of beams between the network device and the terminal device. For example, when the network device and the terminal device are connected through two pairs of beams, the bit used to indicate the first uplink beam can be 1 bit. When the network device and the terminal device are connected through three or four pairs of beams, the bit used to indicate the first uplink beam can be 2 bits. For another example, one or more bits can also be used to indicate the feedback mode of data reception, and the first uplink beam indicated when the data reception situation is combined feedback. Taking Figure 2 the architecture shown in Figure 2 as an example, 10 can be used to indicate combined feedback and the first uplink beam is the uplink beam connected to TRP 111a, 11 can be used to indicate combined feedback and the first uplink beam is the uplink beam connected to TRP 111b, and 01 can be used to indicate separate feedback.

[0143] Optionally, in some possible implementation manners, when the feedback mode of the terminal device for the data reception situation is combined feedback, the network device may further send second indication information to the terminal device; the second indication information is used to indicate the first uplink beam.

[0144] In one possible implementation manner, the network device may carry the first indication information and the second indication information in DCI and send them to the terminal device through PDCCH. For example, the first indication information and the second indication information can be carried in one DCI. At this time, the first indication information and the second indication information can be a newly added field in the DCI, or a field existing in the DCI is multiplexed. For another example, the first indication information and the second indication information can also be carried in different DCIs.

[0145] In another possible implementation manner, the network device may also carry the first indication information and the second indication information in high-layer signaling, and the network device sends the high-layer signaling including the first indication information to the terminal device through high-layer signaling. For example, the first indication information and the second indication information can be carried in one high-layer signaling, and for another example, the first indication information and the second indication information can also be carried in different high-layer signallings.

[0146] Optionally, in some possible implementation manners, the first uplink beam may be an uplink beam that meets a preset condition, such as the uplink beam with the smallest beam sequence number, or the uplink beam with the best channel quality, etc. The channel quality mentioned here is characterized by, for example, at least one of the following parameters: it may be received signal strength indication (RSSI), signal to interference plus noise ratio (SINR), channel quality indication (CQI), etc.

[0147] In the method of this embodiment, in a scenario where a network device communicates with a terminal device through multiple beams, after determining the feedback manner for the data reception situation of the terminal device, the network device sends it to the terminal device through the first indication information to instruct the terminal device to feedback the data reception situation using the indicated feedback manner. This method can dynamically adjust the feedback manner for the data reception situation based on the actual situation, improving the flexibility of feedback on the data reception situation.

[0148] Based on the above embodiments, the following embodiments will focus on how the network device determines the feedback manner for the data reception situation.

[0149] The first way: In some possible implementation manners, the feedback manner for the data reception situation is related to the transmission parameters of the data. The transmission parameters may include, for example, at least one of the following: the transmission manner of the data, the throughput index of the service, the latency index of the service, etc.

[0150] Way 1: For example, when the transmission parameter is the transmission manner of the data, if the transmission manner of the data is a discontinuous transmission manner, the feedback manner for the data reception situation is a combined feedback; or, if the transmission manner of the data is a continuous transmission manner, the feedback manner for the data reception situation is a separate feedback; or, the transmission manner of the data includes a continuous transmission manner and a discontinuous transmission manner. For the data with a discontinuous transmission manner, the feedback manner for the data reception situation is a combined feedback, and for the data with a continuous transmission manner, the feedback manner for the data reception situation is a separate feedback. Among them, continuous transmission may be that the service corresponding to the data needs to be continuously transmitted, such as a video conferencing service. Discontinuous transmission may be that the service corresponding to the data does not need to be continuously transmitted, such as a web access service.

[0151] Exemplarily, in Figure 2In the application scenario shown, the network device 11 is connected to the terminal device 12 through the beams formed by TRP 111a and the beams formed by TRP 111b. When the PDSCH through TRP 111a and the PDSCH through TRP 111b of the network device 11 are in a discontinuous transmission mode, joint feedback can be adopted to save network resources. When the PDSCH through TRP 111a and the PDSCH through TRP 111b of the network device 11 are in a continuous transmission mode, separate feedback can be adopted to improve the real-time performance of transmission. When some services of the PDSCH through TRP 111a and the PDSCH through TRP 111b of the network device 11 are in a continuous transmission mode and some services are in a discontinuous transmission mode, for the data of the services in the discontinuous transmission mode, the feedback mode of the data reception situation is joint feedback, and for the data of the services in the continuous transmission mode, the feedback mode of the data reception situation is separate feedback. When there is at least one discontinuous transmission mode in the PDSCH through TRP 111a and the PDSCH through TRP 111b, separate feedback can also be adopted.

[0152] Method 2: For example, when the transmission parameter is the throughput metric of the service, if the throughput of the service is less than or equal to the throughput threshold, the feedback mode of the data reception situation is joint feedback; or, if the throughput of the service is greater than the throughput threshold, the feedback mode of the data reception situation is separate feedback.

[0153] Exemplarily, for example, when the throughput threshold is 20 million bits per second (Mbps), when the throughput of the service in the throughput metric corresponding to the data is less than or equal to 20 Mbps, joint feedback can be adopted to save network resources. When the throughput metric of the service is greater than 20 Mbps, separate feedback can be adopted to improve the throughput of the service by sending the reception situation of the data in real time.

[0154] Method 3: For example, when the transmission parameter is the latency metric of the service, if the latency of the service is greater than or equal to the latency threshold, the feedback mode of the data reception situation is joint feedback; or, if the latency of the service is less than the latency threshold, the feedback mode of the data reception situation is separate feedback.

[0155] Exemplarily, for example, when the latency threshold is 1 millisecond (ms), when the latency of the service in the latency metric corresponding to the data is greater than or equal to 1 ms, while meeting the service latency, joint feedback can be adopted to save network resources. When the latency of the service is less than 1 ms, separate feedback can be adopted to reduce the latency by sending the reception situation of the data in real time.

[0156] The second method: In some possible implementation manners, the feedback manner of the data reception situation is related to the channel quality of the uplink beam of the terminal device.

[0157] Method 1: For example, it includes at least one of the following: If the channel quality of at least one uplink beam in the uplink beams is greater than or equal to the second channel quality threshold, it indicates that the channel quality of at least one uplink beam is relatively good. At this time, the feedback manner of the data reception situation can be joint feedback. If the channel quality of all uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, it indicates that the channel quality of each uplink beam is very good, and the data reception situation can be accurately transmitted on each uplink beam. At this time, the feedback manner of the data reception situation can be separate feedback. Or, if the channel quality of at least one uplink beam in the uplink beams is less than the first channel quality threshold, it indicates that the channel quality of at least one uplink beam is not good. To avoid the data reception situation fed back through the uplink beam with poor channel quality from being unable to be accurately transmitted, at this time, the feedback manner of the data reception situation can be joint feedback. Among them, the second channel quality threshold is greater than the first channel quality threshold.

[0158] In actual situations, due to the influence of various factors such as multipath fading and Doppler frequency offset on the channel quality, the channel quality of the wireless network will change dynamically, and the channel quality of the uplink beam also changes dynamically.

[0159] Therefore, in Method 1, if the channel quality of the uplink beams changes from being all greater than or equal to the first channel quality threshold and less than the second channel quality threshold to the channel quality of at least one uplink beam in the uplink beams being less than the first channel quality threshold, then the feedback manner of the data reception situation can be changed from separate feedback to joint feedback; if the channel quality of at least one uplink beam in the uplink beams changes from being less than the first channel quality threshold to the channel quality of the uplink beams being all greater than or equal to the first channel quality threshold and less than the second channel quality threshold, then the feedback manner of the data reception situation can be changed from joint feedback to separate feedback.

[0160] If the channel quality of the uplink beams changes from being all greater than or equal to the first channel quality threshold and less than the second channel quality threshold to the channel quality of at least one uplink beam in the uplink beams being greater than or equal to the second channel quality threshold, then the feedback manner of the data reception situation can be changed from separate feedback to joint feedback; if the channel quality of at least one uplink beam in the uplink beams changes from being greater than or equal to the second channel quality threshold to the channel quality of the uplink beams being all greater than or equal to the first channel quality threshold and less than the second channel quality threshold, then the feedback manner of the data reception situation can be changed from joint feedback to separate feedback.

[0161] If the channel quality of at least one uplink beam in the uplink beam is less than the first channel quality threshold, and is changed to the channel quality of at least one uplink beam in the uplink beam being greater than or equal to the second channel quality threshold, at this time, the first uplink beam can be switched to an uplink beam with a channel quality greater than or equal to the second channel quality threshold; if the channel quality of at least one uplink beam in the uplink beam is greater than or equal to the second channel quality threshold and is changed to the channel quality of at least one uplink beam in the uplink beam being less than the first channel quality threshold, at this time, the first uplink beam can be switched to the uplink beam with the best channel quality.

[0162] Among them, the changing process can be changed by the network device sending a first indication message.

[0163] Taking three uplink beams, namely uplink beam 1, uplink beam 2, and uplink beam 3, as an example. At the first moment, the channel qualities of uplink beam 1, uplink beam 2, and uplink beam 3 are all greater than the first channel quality threshold and less than the second channel quality threshold. At this time, split feedback can be adopted. At the second moment, when the channel quality of uplink beam 1 becomes less than the first channel quality threshold, combined feedback can be adopted at this time. At the third moment, after the channel quality of uplink beam 1 becomes greater than the first channel quality threshold and less than the second channel quality threshold again, split feedback can be adopted at this time. At the fourth moment, when the channel quality of uplink beam 3 becomes greater than the second channel quality threshold, combined feedback can be adopted at this time. At the fifth moment, when the channel quality of uplink beam 3 becomes greater than the first channel quality threshold and less than the second channel quality threshold, split feedback can be adopted at this time.

[0164] Method 2: For example, it includes at least one of the following: If the absolute values of the differences in the channel qualities of the uplink beams are all less than the difference threshold, it indicates that the channel qualities of the uplink beams are quite similar, and the accuracies of the feedbacks of the data reception situations through each uplink beam are quite similar. At this time, the feedback method of the data reception situation can be split feedback. Or, if the absolute values of the differences in the channel qualities of at least two uplink beams are greater than or equal to the difference threshold, it indicates that the differences in the channel qualities of at least two uplink beams are relatively large, and the accuracy of the feedback of the data reception situation through the uplink beam with a relatively poor channel quality is relatively low. At this time, the feedback method of the data reception situation can be combined feedback, and the uplink beam with a relatively good channel quality is selected to feedback the data reception situation.

[0165] Since the channel quality of the uplink beam is dynamically changing, in the second method, if the absolute value of the difference in the channel quality of at least two uplink beams changes from being greater than or equal to the difference threshold to being less than the difference threshold for the difference in the channel quality of the uplink beams, the feedback method for the data reception situation can be changed from combined feedback to separate feedback; if the absolute value of the difference in the channel quality of the uplink beams changes from being less than the difference threshold to the absolute value of the difference in the channel quality of at least two uplink beams being greater than or equal to the difference threshold, the feedback method for the data reception situation can be changed from separate feedback to combined feedback.

[0166] Taking three uplink beams, namely uplink beam 1, uplink beam 2, and uplink beam 3, as an example. At the first moment, when the absolute value of the difference in the channel quality between uplink beam 1 and uplink beam 2 is less than the difference threshold, the absolute value of the difference in the channel quality between uplink beam 1 and uplink beam 3 is less than the difference threshold, and the absolute value of the difference in the channel quality between uplink beam 2 and uplink beam 3 is less than the difference threshold, separate feedback can be used. At the second moment, when the absolute value of the difference in the channel quality between uplink beam 1 and uplink beam 2 is greater than the difference threshold, combined feedback can be used at this time. At the third moment, when the absolute value of the difference in the channel quality between uplink beam 1 and uplink beam 2 is less than the difference threshold again, separate feedback can be used at this time.

[0167] The third method, in some possible implementation manners, the feedback method for the data reception situation is related to the transmission parameters of the data and the channel quality of the uplink beam of the terminal device.

[0168] Method 1: For example, the transmission parameter of the data is the transmission mode of the data.

[0169] When the transmission mode of the data is a discontinuous transmission mode, if there is at least one uplink beam whose channel quality is greater than or equal to the second channel quality threshold among the uplink beams, the feedback method for the data reception situation can be combined feedback at this time. If the channel quality of the uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback method for the data reception situation can be separate feedback or combined feedback. Or, if there is at least one uplink beam whose channel quality is less than the first channel quality threshold among the uplink beams, the feedback method for the data reception situation can be combined feedback.

[0170] Alternatively, when the data transmission mode is continuous transmission mode, if the channel quality of at least one uplink beam in the uplink beam is greater than or equal to the second channel quality threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time. If the channel quality of all uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback mode of the data reception situation can be separate feedback at this time. Alternatively, if the channel quality of at least one uplink beam in the uplink beam is less than the first channel quality threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time.

[0171] Method 2: For example, the transmission parameter of the data is the data transmission mode.

[0172] When the data transmission mode is discontinuous transmission mode, if the absolute values of the differences in the channel quality of the uplink beams are all less than the difference threshold, the feedback mode of the data reception situation can be separate feedback or joint feedback at this time. If there are at least two uplink beams with absolute values of the differences in the channel quality greater than or equal to the difference threshold, the feedback mode of the data reception situation can be joint feedback at this time.

[0173] Alternatively, when the data transmission mode is continuous transmission mode, if the absolute values of the differences in the channel quality of the uplink beams are all less than the difference threshold, the feedback mode of the data reception situation can be separate feedback at this time. If there are at least two uplink beams with absolute values of the differences in the channel quality greater than or equal to the difference threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time.

[0174] Method 3: For example, the transmission parameter of the data is the throughput index of the service.

[0175] When the throughput of the service is less than or equal to the throughput threshold, if the channel quality of at least one uplink beam in the uplink beam is greater than or equal to the second channel quality threshold, the feedback mode of the data reception situation can be joint feedback at this time. If the channel quality of all uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback mode of the data reception situation can be separate feedback or joint feedback at this time. Alternatively, if the channel quality of at least one uplink beam in the uplink beam is less than the first channel quality threshold, the feedback mode of the data reception situation can be joint feedback at this time.

[0176] Alternatively, when the throughput of the service is greater than the throughput threshold, if the channel quality of at least one uplink beam in the uplink beams is greater than or equal to the second channel quality threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time. If the channel quality of all uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback mode of the data reception situation can be separate feedback at this time. Or, if the channel quality of at least one uplink beam in the uplink beams is less than the first channel quality threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time.

[0177] Mode 4: For example, the transmission parameter of the data is the throughput index of the service.

[0178] When the throughput of the service is less than or equal to the throughput threshold, if the absolute values of the differences in the channel quality of the uplink beams are all less than the difference threshold, the feedback mode of the data reception situation can be separate feedback or joint feedback at this time. If the absolute values of the differences in the channel quality of at least two uplink beams are greater than or equal to the difference threshold, the feedback mode of the data reception situation can be joint feedback at this time.

[0179] Alternatively, when the throughput of the service is greater than the throughput threshold, if the absolute values of the differences in the channel quality of the uplink beams are all less than the difference threshold, the feedback mode of the data reception situation can be separate feedback at this time. If the absolute values of the differences in the channel quality of at least two uplink beams are greater than or equal to the difference threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time.

[0180] Mode 5: For example, the transmission parameter of the data is the delay index of the service.

[0181] When the delay of the service is greater than or equal to the delay threshold, if the channel quality of at least one uplink beam in the uplink beams is greater than or equal to the second channel quality threshold, the feedback mode of the data reception situation can be joint feedback at this time. If the channel quality of all uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback mode of the data reception situation can be separate feedback or joint feedback at this time. Or, if the channel quality of at least one uplink beam in the uplink beams is less than the first channel quality threshold, the feedback mode of the data reception situation can be joint feedback at this time.

[0182] Alternatively, when the latency of the service is less than the latency threshold, if the channel quality of at least one uplink beam in the uplink beams is greater than or equal to the second channel quality threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time. If the channel quality of all uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback mode of the data reception situation can be separate feedback at this time. Or, if the channel quality of at least one uplink beam in the uplink beams is less than the first channel quality threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time.

[0183] Method 6: For example, the transmission parameter of the data is the latency index of the service.

[0184] When the latency of the service is greater than or equal to the latency threshold, if the absolute values of the differences in the channel quality of the uplink beams are all less than the difference threshold, the feedback mode of the data reception situation can be separate feedback or joint feedback at this time. If there are at least two absolute values of the differences in the channel quality of the uplink beams that are greater than or equal to the difference threshold, the feedback mode of the data reception situation can be joint feedback at this time.

[0185] Alternatively, when the latency of the service is less than the latency threshold, if the absolute values of the differences in the channel quality of the uplink beams are all less than the difference threshold, the feedback mode of the data reception situation can be separate feedback at this time. If there are at least two absolute values of the differences in the channel quality of the uplink beams that are greater than or equal to the difference threshold, the feedback mode of the data reception situation can be joint feedback or separate feedback at this time.

[0186] When the channel quality of the uplink beam changes dynamically, the feedback mode of the data reception situation can be switched to each other. Specifically, reference can be made to the example in the second method, and details are not described in this embodiment.

[0187] In the above implementation, determining the feedback mode of the data by using the transmission parameter of the data and the channel quality of the uplink beam is only a partial example given. The present application can also determine to use separate feedback or joint feedback according to other parameters. The embodiments of the present application can determine the feedback mode of the data reception situation according to the actual situation, which improves the flexibility of determining the feedback mode of the data reception situation.

[0188] The following embodiments will focus on how to feedback the data reception situation after the terminal device receives the first indication information.

[0189] Figure 4 It is a schematic flowchart of another method for determining the feedback mode provided by the embodiments of the present application. Figure 4 In Figure 3 On this basis, as Figure 4 shown, the method may include:

[0190] S201. The network device sends data.

[0191] Correspondingly, the terminal device receives the data, which is sent by the network device using at least one downlink beam.

[0192] S202. The terminal device feeds back the reception situation of the data according to the feedback manner indicated by the first indication information.

[0193] Taking Figure 2 the architecture shown as an example, and taking the reception situation of the data as ACK / NACK as an example for illustration.

[0194] When the feedback manner indicated by the first indication information is joint feedback, exemplarily, the network device 11 sends data A to the terminal device 12 through the PDSCH of the downlink beam formed by the TRP 111a, and sends data B to the terminal device 12 through the PDSCH of the downlink beam formed by the TRP 111b. After receiving data A and data B, the terminal device 12 demodulates data A and data B respectively, and determines the reception situations corresponding to data A and data B. The terminal device 12 sends the reception situations of data A and data B to the network device 11 through the PUCCH of the uplink beam communicatively connected to the TRP 111a, or through the PUCCH of the uplink beam communicatively connected to the TRP 111b. After receiving the reception situations of data A and data B, the network device 11 determines whether to retransmit data A and / or data B.

[0195] In this example, the reception situations of data A and data B can be sent to the network device in the form of a codebook, and this codebook can be, for example, a HARQ-ACK codebook.

[0196] When the feedback manner indicated by the first indication information is separate feedback, exemplarily, the network device 11 sends data A to the terminal device 12 through the PDSCH of the downlink beam formed by the TRP 111a. After receiving data A, the terminal device 12 demodulates data A and determines the reception situation of data A. The terminal device 12 sends the reception situation of data A to the network device 11 through the PUCCH of the uplink beam communicatively connected to the TRP 111a. After receiving the reception situation of data A, the network device 11 determines whether to retransmit data A.

[0197] Similarly, when the network device 11 sends data B to the terminal device 12 through the PDSCH of the downlink beam formed by the TRP 111b, after receiving data B, the terminal device 12 demodulates data B and determines the reception situation of data B. The terminal device 12 sends the reception situation of data B to the network device 11 through the PUCCH of the uplink beam communicatively connected to the TRP 111b. After receiving the reception situation of data B, the network device 11 determines whether to retransmit data B.

[0198] In this example, the reception conditions of data A and data B can be sent to the network device in the form of a codebook, which can be, for example, a HARQ-ACK codebook.

[0199] Among them, the codebook can be a static codebook or a dynamic codebook. For example, when the codebook is a HARQ-ACK codebook, the HARQ-ACK codebook can be a static HARQ-ACK codebook or a dynamic HARQ-ACK codebook.

[0200] In a possible implementation, the terminal device generates a codebook for the data received on each downlink beam according to the feedback manner indicated by the first indication information; the codebook is used to indicate the reception condition of the data received on the downlink beam, and the codebook establishes an index with the uplink beam corresponding to the codebook; according to the index, the codebook is sent on the uplink beam corresponding to each codebook. The codebook can be, for example, a HARQ-ACK codebook. For example, the index can be a mapping table of the identifier of the codebook and the uplink beam corresponding to the codebook.

[0201] In some possible implementations, after generating the codebook for the data received on each downlink beam, the following steps may further be included: the terminal device generates an index, which is used to establish an association between the codebook and the uplink beam corresponding to the codebook.

[0202] When the feedback manner indicated by the first indication information is joint feedback, in a possible implementation, the reception conditions of the data received on the downlink beam can be respectively generated into independent HARQ-ACK codebooks, and according to the HARQ-ACK codebooks and the indexes of the uplink beams corresponding to the HARQ-ACK codebooks, the HARQ-ACK codebooks are sent to the network device through the uplink beams corresponding to each HARQ-ACK codebook (such as the first uplink beam).

[0203] In another possible implementation, the reception conditions of the data received on the downlink beam can be generated into one HARQ-ACK codebook, and according to the HARQ-ACK codebook and the index of the uplink beam corresponding to the HARQ-ACK codebook, the HARQ-ACK codebook is sent to the network device through the uplink beam corresponding to the HARQ-ACK codebook. Among them, in the HARQ-ACK codebook, the order of the reception conditions of the data received on the downlink beam can be agreed in advance. For example, the order can be the identifiers of the uplink beams in ascending order or descending order; the order of the reception conditions of the data received on the downlink beam can also be determined according to the indication of the first information.

[0204] When the feedback mode indicated by the first indication information is the split feedback, the reception conditions of the received data of each downlink beam can be used to generate respective independent HARQ-ACK codebooks, and according to the HARQ-ACK codebooks and the indexes of the uplink beams corresponding to the HARQ-ACK codebooks, the respective independent HARQ-ACK codebooks are sent to the network device through the uplink beams corresponding to the HARQ-ACK codebooks.

[0205] It should be noted that the above embodiments can also be applicable to the case where after the terminal device receives data, a codebook of the data is generated, and according to the index, the codebook is sent to the network device on the uplink beam corresponding to each codebook. The implementation principle and technical effects are similar to those above, and will not be elaborated here. That is to say, this embodiment can exist as a separate embodiment and does not necessarily depend on the feedback mode of the data reception conditions indicated by the foregoing network device for the terminal device.

[0206] In the embodiment of the present application, after the terminal device receives data sent by the network device from the downlink beam, when using the combined feedback, the uplink beam for feedback on the data reception conditions can be selected according to the actual situation, which improves the flexibility of feedback on the reception conditions. When the reception conditions of the data received on the downlink beam are fed back as a whole, the number of times of feedback on the reception conditions of the data can be reduced, and thus the overhead of sending the reception conditions of the data can be reduced, saving network resources. When using the split feedback, the reception conditions of the data can be sent in real time, improving the transmission efficiency.

[0207] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above method embodiments; and the foregoing storage medium includes: various media such as ROM, RAM, magnetic disk or optical disk that can store program codes.

[0208] Figure 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application, as Figure 5 shown, the device may include: a processing module 21, a sending module 22. Wherein,

[0209] The processing module 21 is configured to determine the feedback mode of the terminal device for the data reception conditions.

[0210] The sending module 22 is configured to send first indication information to the terminal device; the first indication information is used to indicate the feedback mode.

[0211] Optionally, in a possible implementation, the feedback manner includes: combined feedback, and / or, separate feedback, where the combined feedback is that the terminal device feeds back the reception condition of the data received on the downlink beam on the first uplink beam, and the separate feedback is that the terminal device feeds back the reception condition of the data received on the downlink beam through the uplink beam corresponding to the downlink beam.

[0212] Optionally, in a possible implementation, the feedback manner is related to the transmission parameters of the data, and / or related to the channel quality of the uplink beam of the terminal device.

[0213] For example, the transmission parameter is the transmission manner of the data; if the transmission manner of the data is a discontinuous transmission manner, the feedback manner is combined feedback; and / or, if the transmission manner of the data is a continuous transmission manner, the feedback manner is separate feedback.

[0214] Still another example includes at least one of the following: if there is at least one uplink beam in the uplink beams whose channel quality is greater than or equal to the second channel quality threshold, the feedback manner is combined feedback; if the channel quality of all the uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback manner is separate feedback; if there is at least one uplink beam in the uplink beams whose channel quality is less than the first channel quality threshold, the feedback manner is combined feedback; the second channel quality threshold is greater than the first channel quality threshold.

[0215] Optionally, in a possible implementation, the feedback manner is the combined feedback, and the first indication information is further used to indicate the first uplink beam.

[0216] Optionally, the feedback manner of the terminal device for the data reception condition is the combined feedback.

[0217] The sending module 22 is further configured to send second indication information to the terminal device; the second indication information is used to indicate the first uplink beam.

[0218] Optionally, the first uplink beam is the uplink beam with the best channel quality among the uplink beams.

[0219] This application Figure 5 The communication device provided by the embodiments shown can perform the actions of the network device in the above method embodiments. For example, this communication device can be the network device itself, or a chip of the network device.

[0220] Figure 6 is a schematic structural diagram of another communication device provided by the embodiments of this application, as Figure 6As shown, the device may include: a receiving module 31 and a processing module 32. Among them,

[0221] The receiving module 31 is configured to receive first indication information from a network device.

[0222] The processing module 32 is configured to determine, according to the first indication information, a feedback manner of the terminal device for data reception.

[0223] Optionally, in a possible implementation manner, the first indication information is used to indicate a feedback manner of the terminal device for data reception, and the feedback manner includes: combined feedback, and / or, separate feedback. The combined feedback is that the terminal device feeds back the reception situation of the data received on the downlink beam on the first uplink beam, and the separate feedback is that the terminal device feeds back the reception situation of the data received on each downlink beam through the uplink beam corresponding to each downlink beam.

[0224] Optionally, in a possible implementation manner, the feedback manner is related to the transmission parameter of the data and / or related to the channel quality of the uplink beam of the terminal device.

[0225] For example, the transmission parameter is the transmission manner of the data; if the transmission manner of the data is a discontinuous transmission manner, the feedback manner is combined feedback; and / or, if the transmission manner of the data is a continuous transmission manner, the feedback manner is separate feedback.

[0226] For another example, it includes at least one of the following: if there is at least one uplink beam in the uplink beams whose channel quality is greater than or equal to a second channel quality threshold, the feedback manner is combined feedback; if the channel quality of all uplink beams is greater than or equal to a first channel quality threshold and less than the second channel quality threshold, the feedback manner is separate feedback; if there is at least one uplink beam in the uplink beams whose channel quality is less than the first channel quality threshold, the feedback manner is combined feedback; the second channel quality threshold is greater than the first channel quality threshold.

[0227] Optionally, in a possible implementation manner, when the feedback manner is the combined feedback, the first indication information is further used to indicate the first uplink beam.

[0228] Optionally, in a possible implementation manner, the feedback manner of the terminal device for data reception is the combined feedback.

[0229] The receiving module is further configured to receive second indication information sent by the network device; the second indication information is used to indicate the first uplink beam.

[0230] Optionally, in a possible implementation, the first uplink beam is the uplink beam with the best channel quality among the uplink beams.

[0231] Optionally, in a possible implementation, the apparatus further includes: a sending module 33.

[0232] The receiving module 31 is further configured to receive data.

[0233] The sending module 33 is configured to feed back the reception status of the data according to the feedback manner indicated by the first indication information.

[0234] Specifically, the sending module 33 is configured to generate a codebook of the data received from each downlink beam according to the feedback manner indicated by the first indication information; the codebook is used to indicate the reception status of the data received on the downlink beam, and the codebook is indexed with the uplink beam corresponding to the codebook; and the codebook is sent on the uplink beam corresponding to each codebook according to the index.

[0235] Optionally, in a possible implementation, the codebook is a static codebook or a dynamic codebook.

[0236] This application Figure 6 The communication apparatus provided by the embodiments shown can perform the actions of the terminal device in the above method embodiments. For example, the communication apparatus can be the terminal device itself or a chip of the terminal device.

[0237] It should be noted that it should be understood that in actual implementation, the sending module can be a transmitter, the receiving module can be a receiver, or the sending module and the receiving module are implemented through a transceiver, or the sending module and the receiving module are implemented through a communication port. The processing module can be implemented in the form of software called by a processing element; it can also be implemented in the form of hardware. For example, the processing module can be at least one independently established processing element, or can be integrated in a certain chip of the above apparatus. In addition, it can also be stored in the memory of the above apparatus in the form of program code and called and executed by a certain processing element of the above apparatus to perform the functions of the above processing module. In addition, all or part of these modules can be integrated together or can be independently implemented. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the hardware integrated logic circuit or the instruction in the form of software in the processor element.

[0238] For example, the above modules may be one or more integrated circuits configured to implement the above methods. For example: one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), etc. For another example, when a certain module above is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0239] Figure 7 Schematic diagram of the structure of another communication device provided by an embodiment of the present application. As Figure 7 shown, the communication device may include: at least one processor 41 (such as a CPU), and at least one memory 42. Figure 7 The figure is a schematic diagram taking one processor 41 and one memory 42 as an example. The memory 42 may include high-speed random access memory (RAM), and may also include non-volatile memory (NVM), such as at least one disk memory. Various instructions and / or data may be stored in the memory 42 for completing various processing functions and implementing the method steps of the present application. Optionally, the communication device involved in the present application may further include: a power supply 43, a communication bus 44, and a communication port 45. The communication bus 44 is used to implement communication connections between components. The above communication port 45 is used to implement connection communication between the communication device and other peripherals.

[0240] In some possible implementation manners, the above memory 42 is used to store computer-executable program code, and the program code includes instructions; when the processor 41 executes the instructions, the instructions cause the processor 41 of the communication device to perform the actions of the network device in the above method embodiments, and the implementation principles and technical effects are similar and will not be elaborated here.

[0241] Figure 8 Schematic diagram of the structure of yet another communication device provided by an embodiment of the present application. As Figure 8As shown in the figure, the communication device may include: a processor 51 (such as a CPU), a memory 52, a receiver 53, and a transmitter 54; both the receiver 53 and the transmitter 54 are coupled to the processor 52, the processor 52 controls the receiving operation of the receiver 53, and the processor 51 controls the transmitting operation of the transmitter 54; the memory 52 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory. Various instructions can be stored in the memory 52 to complete various processing functions and implement the method steps of this application. Optionally, the communication device involved in this application may further include: a power supply 55, a communication bus 56, and a communication port 57. The receiver 53 and the transmitter 54 may be integrated in the transceiver of the communication device, or may be independent transceiver antennas on the communication device. The communication bus 56 is used to implement communication connections between components. The above communication port 57 is used to implement connection communication between the communication device and other peripherals.

[0242] In the embodiment of this application, the above memory 52 is used to store computer-executable program code, and the program code includes instructions; when the processor 51 executes the instructions, the instructions cause the processor 51 of the communication device to execute the processing operations of the terminal device in the above method embodiment, cause the receiver 53 to execute the receiving operations of the terminal device in the above method embodiment, and cause the transmitter 54 to execute the transmitting operations of the terminal device in the above method embodiment. The implementation principles and technical effects are similar and will not be elaborated here.

[0243] The embodiment of this application also provides a computer-readable storage medium, on which computer instructions for implementing the methods executed by the network device or the terminal device in the above method embodiments are stored.

[0244] For example, when the computer instructions are executed, the communication device can implement the methods executed by the network device or the terminal device in the above method embodiments.

[0245] The embodiment of this application also provides a computer program product containing instructions, and when the instructions are executed, the computer implements the methods executed by the network device or the terminal device in the above method embodiments.

[0246] The embodiment of this application also provides a communication system, which includes the terminal device and the network device in the above embodiments.

[0247] As an example, the communication system includes: the network device and the terminal device in the embodiments described above in conjunction with Figure 3 the embodiments described above.

[0248] As an example, the communication system includes: the network device and the terminal device in the embodiment described above in conjunction with Figure 4 the description.

[0249] As an example, the communication system includes: the communication device described above in conjunction with Figure 5 the description, Figure 6 the communication device described.

[0250] As another example, the communication system includes: the communication device described above in conjunction with Figure 7 or Figure 8 the description.

[0251] In the embodiments of the present application, the size of the serial numbers of the above processes does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0252] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including that element.

[0253] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining". Furthermore, as used herein, the singular forms "a", "an", and "the" are intended to also include the plural forms unless the context clearly indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the stated features, steps, operations, elements, components, items, kinds, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" as used herein are interpreted as inclusive, or meaning either or any combination. Thus, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C". An exception to this definition occurs only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some manner.

[0254] It should be understood that although the steps in the flowcharts in the above embodiments are shown sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless there is a clear indication in the present disclosure, the execution of these steps is not strictly limited in order, and they may be executed in other orders. Moreover, at least a part of the steps in the figures may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and their execution order is not necessarily sequential, but may be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0255] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for determining a feedback manner, applied to a network device, wherein, The method includes: Determine the feedback manner of the terminal device for the data reception situation; Send first indication information to the terminal device, where the first indication information is used to indicate the feedback manner, where the feedback manner includes combined feedback and separate feedback, and where, the combined feedback is that the terminal device feeds back the data reception situation through one HARQ-ACK codebook, the separate feedback is that the terminal device feeds back the data reception situation through respective independent HARQ-ACK codebooks, where, if the feedback manner is combined feedback, then the terminal device feeds back the data reception situation of the data received on at least two downlink beams on a first uplink beam, and the first indication information is further used to indicate the first uplink beam, where the feedback manner is related to the channel quality of the uplink beam of the terminal device, and the method further includes: if the absolute value of the difference in the channel quality of the uplink beam is less than the difference threshold, then the feedback manner is separate feedback; if there are at least two uplink beams with the absolute value of the difference in channel quality greater than or equal to the difference threshold, then the feedback manner is combined feedback.

2. The method according to claim 1, where, if the feedback manner is separate feedback, then the terminal device feeds back the data reception situation of the data received on the downlink beam through the uplink beam corresponding to the downlink beam.

3. The method according to claim 1, wherein, The feedback manner is related to the transmission parameters of the data.

4. The method according to claim 3, wherein, The transmission parameter is the transmission manner of the data; it further includes: if the transmission manner of the data is a discontinuous transmission manner, then the feedback manner is combined feedback; and / or, if the transmission manner of the data is a continuous transmission manner, then the feedback manner is separate feedback.

5. The method according to claim 3, wherein Includes at least one of the following: if there is at least one uplink beam with the channel quality greater than or equal to a second channel quality threshold among the uplink beams, then the feedback manner is combined feedback; if the channel quality of the uplink beam is greater than or equal to a first channel quality threshold and less than a second channel quality threshold, then the feedback manner is separate feedback, and the second channel quality threshold is greater than the first channel quality threshold; if there is at least one uplink beam with the channel quality less than the first channel quality threshold among the uplink beams, then the feedback manner is combined feedback.

6. A method for determining a feedback manner, applied to a terminal device, wherein, The method includes: Receive first indication information, where the first indication information is used to indicate the feedback manner; Determine the feedback manner of the terminal device for the data reception situation according to the first indication information, where the feedback manner includes combined feedback and separate feedback, and where, the combined feedback is that the terminal device feeds back the data reception situation through one HARQ-ACK codebook, the separate feedback is that the terminal device feeds back the data reception situation through respective independent HARQ-ACK codebooks, where, if the feedback manner is combined feedback, then the terminal device feeds back the data reception situation of the data received on at least two downlink beams on a first uplink beam, and the first indication information is further used to indicate the first uplink beam, Wherein, the feedback manner is related to the channel quality of the uplink beam of the terminal device, and the method further includes: If the absolute value of the difference in the channel quality of the uplink beam is less than the difference threshold, the feedback manner is a split feedback; If there are at least two uplink beams with the absolute value of the difference in channel quality greater than or equal to the difference threshold, the feedback manner is a combined feedback.

7. The method according to claim 6, wherein, If the feedback manner is split feedback, the terminal device feeds back the reception situation of the data received on the downlink beam through the uplink beam corresponding to the downlink beam.

8. The method according to claim 6, wherein The feedback manner is related to the transmission parameters of the data.

9. The method according to claim 8, wherein, The transmission parameter is the transmission manner of the data; it further includes: If the transmission manner of the data is a discontinuous transmission manner, the feedback manner is a combined feedback; and / or, If the transmission manner of the data is a continuous transmission manner, the feedback manner is a split feedback.

10. The method according to claim 8, wherein, Includes at least one of the following: If there is at least one uplink beam with the channel quality greater than or equal to the second channel quality threshold among the uplink beams, the feedback manner is a combined feedback; If the channel quality of the uplink beams is greater than or equal to the first channel quality threshold and less than the second channel quality threshold, the feedback manner is a split feedback, and the second channel quality threshold is greater than the first channel quality threshold; If there is at least one uplink beam with the channel quality less than the first channel quality threshold among the uplink beams, the feedback manner is a combined feedback.

11. The method according to any one of claims 6-10, wherein, The method further includes: Receiving data, the data is sent by the network device using at least one downlink beam; Feeding back the reception situation of the data according to the feedback manner indicated by the first indication information.

12. The method according to claim 11, wherein, The step of feeding back the reception situation of the data according to the feedback manner indicated by the first indication information includes: Generating a codebook of the data received on each downlink beam according to the feedback manner indicated by the first indication information; the codebook is used to indicate the reception situation of the data received on the downlink beam, and the codebook is indexed with the uplink beam corresponding to the codebook; Sending the codebook on the uplink beam corresponding to each codebook according to the index.

13. The method according to claim 12, wherein, The codebook is a static codebook or a dynamic codebook.

14. A communication device, wherein, Includes: At least one processor and a memory; The memory stores computer execution instructions; The at least one processor executes the computer execution instructions stored in the memory, so that the device executes the method according to claim 1 or 6.

15. A computer-readable storage medium, wherein, Computer execution instructions are stored on the computer-readable storage medium, and when the computer execution instructions are executed by the processor, the method according to claim 1 or 6 is implemented.

16. A computer program product comprising computer instructions, wherein, When the computer instructions are executed by the processor, the method according to claim 1 or 6 is implemented.

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