Hybrid automatic repeat request feedback indication, feedback method and device, and base station

Abstract

The present disclosure relates to a HARQ feedback indication, feedback method and device, base station, user equipment and computer-readable storage medium. The HARQ feedback indication method includes: determining to send current downlink data to a terminal; generating uplink HARQ feedback indication information for the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data; sending the current downlink data and downlink control information DCI carrying the uplink HARQ feedback indication information to the terminal. The embodiments of the present disclosure enable the terminal to implement dynamic HARQ feedback.

Description

[0001] Divisional application statement

[0002] This application is a divisional application based on the Chinese invention patent application with application number 201780001911.8, application date November 17, 2017, and invention name “Hybrid automatic repeat request feedback indication, feedback method and device and base station”. Technical Field

[0003] The present disclosure relates to the field of communication technology, and in particular to a hybrid automatic repeat request (HARQ) feedback indication, a feedback method and device, a base station, a user equipment, and a computer-readable storage medium. Background Art

[0004] The emergence of new Internet applications such as the new generation of augmented reality (AR), virtual reality (VR) and vehicle-to-vehicle communication has put forward higher requirements for wireless communication technology, driving the continuous evolution of wireless communication technology to meet the needs of applications. At present, cellular mobile communication technology is in the evolution stage of the new generation of technology. An important feature of the new generation of technology is to support flexible configuration of multiple service types. Since different service types have different requirements for wireless communication technology, for example, the main requirements of the enhanced mobile broadband (eMBB) service type focus on large bandwidth and high rate, the main requirements of the ultra-reliable low latency communication (URLLC) service type focus on high reliability and low latency, and the main requirements of the massive machine type communication (mMTC) service type focus on a large number of connections. Therefore, the new generation of wireless communication systems require flexible and configurable designs to support the transmission of multiple service types.

[0005] In wireless communication systems, the time-varying characteristics of wireless channels and multipath fading can affect signal transmission, resulting in data transmission failure. In order to solve this problem, a hybrid automatic repeat request (HARQ) mechanism is introduced in traditional wireless communication systems. The sending side decides whether to resend the data packet that has been sent through the feedback of the receiving side on whether the data is received correctly. In traditional long-term evolution (LTE) systems, there is a timing relationship between the transmission of data and the time of confirmation (ACK) or non-confirmation (NACK) feedback. Limited by the processing power of the terminal, in LTE, there is at least 4 milliseconds (ms) between the transmission of data and the time of ACK or NACK feedback. In the LTE system, the HARQ feedback of the downlink data packet is synchronous, that is, there is a fixed timing relationship between the transmission of the downlink data packet and the uplink ACK or NACK feedback for the data packet. The HARQ feedback of the uplink data packet can be synchronous or asynchronous.

[0006] As terminal capabilities increase, terminals can have stronger processing capabilities. In this case, the terminal can provide ACK or NACK feedback for received data more quickly to reduce data transmission latency. This is important for some services that have high latency requirements, such as URLLC services. Traditional HARQ timing feedback methods are no longer applicable to this scenario. Summary of the invention

[0007] In view of this, the present application discloses a HARQ feedback indication, a feedback method and apparatus, a base station, a user equipment and a computer-readable storage medium to support a terminal to implement dynamic HARQ feedback.

[0008] According to a first aspect of an embodiment of the present disclosure, a hybrid automatic repeat request HARQ feedback indication method is provided, which is applied to a base station, and the method includes:

[0009] Determine to send the current downlink data to the terminal;

[0010] Generate uplink HARQ feedback indication information for the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0011] The current downlink data and downlink control information DCI carrying the uplink HARQ feedback indication information are sent to the terminal.

[0012] In one embodiment, the method further comprises:

[0013] Receiving capability information reported by the terminal;

[0014] If it is determined according to the capability information that the terminal supports dynamic HARQ feedback, generating the first timing relationship set;

[0015] The first timing relationship set is sent to the terminal.

[0016] In one embodiment, the method further comprises:

[0017] Predefine a second timing relationship set between a time domain unit where downlink data supported by the current system is located and a time domain unit of uplink HARQ feedback of the downlink data, or notify the terminal of the second timing relationship set through signaling;

[0018] Receiving capability information reported by the terminal;

[0019] If it is determined according to the capability information that the terminal supports dynamic HARQ feedback, generating a generation rule for the first timing relationship set;

[0020] The generation rule is sent to the terminal, so that the terminal generates the first timing relationship set according to the generation rule and the second timing relationship set.

[0021] In one embodiment, the uplink HARQ feedback indication information is carried in an information field of the DCI, and a bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

[0022] In one embodiment, the signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

[0023] In one embodiment, when the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is located in the first timing relationship set and the fixed value is pre-set by the current system or configured by the base station.

[0024] According to a second aspect of an embodiment of the present disclosure, a hybrid automatic repeat request HARQ feedback method is provided, which is applied to a terminal, and the method includes:

[0025] Receiving current downlink data and downlink control information DCI carrying uplink HARQ feedback indication information of the current downlink data sent by a base station, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0026] Parsing the uplink HARQ feedback indication information from the DCI;

[0027] Acquire, according to the uplink HARQ feedback indication information and the first pre-stored timing relationship set, a timing relationship between a time domain unit where the current downlink data is located and a time domain unit of uplink HARQ feedback of the current downlink data;

[0028] The uplink HARQ feedback information of the current downlink data is sent according to the acquired timing relationship.

[0029] In one embodiment, the method further comprises:

[0030] Reporting capability information of the terminal to the base station;

[0031] Receive and save the first timing relationship set sent by the base station according to the capability information.

[0032] In one embodiment, the method further comprises:

[0033] Obtaining, by pre-definition or signaling sent by the base station, a second timing relationship set between a time domain unit where downlink data supported by the current system is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0034] Reporting capability information of the terminal to the base station;

[0035] receiving a generation rule of the first timing relationship set sent by the base station according to the capability information;

[0036] Generate the first timing relationship set according to the generation rule and the second timing relationship set;

[0037] The first timing relationship set is saved.

[0038] In one embodiment, the uplink HARQ feedback indication information is carried in an information field of the DCI, and a bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

[0039] In one embodiment, the signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

[0040] In one embodiment, when the terminal does not support the dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is located in the first timing relationship set, and the fixed value is pre-set by the current system or configured by the base station.

[0041] According to a third aspect of an embodiment of the present disclosure, a hybrid automatic repeat request HARQ feedback indication device is provided, which is applied to a base station, and the device includes:

[0042] A determination module, configured to determine to send current downlink data to the terminal;

[0043] A first generating module is configured to generate uplink HARQ feedback indication information for the current downlink data determined by the determining module, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0044] The first sending module is configured to send the current downlink data and downlink control information DCI carrying the uplink HARQ feedback indication information generated by the first generating module to the terminal.

[0045] In one embodiment, the device further comprises:

[0046] A first receiving module is configured to receive capability information reported by the terminal;

[0047] A first determination generating module is configured to generate the first timing relationship set if it is determined that the terminal supports dynamic HARQ feedback according to the capability information received by the first receiving module;

[0048] The second sending module is configured to send the first timing relationship set generated by the first determination generating module to the terminal.

[0049] In one embodiment, the device further comprises:

[0050] A definition notification module is configured to predefine a second timing relationship set between a time domain unit where downlink data supported by the current system is located and a time domain unit of uplink HARQ feedback of the downlink data, or notify the terminal of the second timing relationship set through signaling;

[0051] A second receiving module is configured to receive capability information reported by the terminal;

[0052] a second determination generating module, configured to generate a generation rule of the first timing relationship set if it is determined that the terminal supports dynamic HARQ feedback according to the capability information received by the second receiving module;

[0053] The third sending module is configured to send the generation rule generated by the second determination generation module to the terminal, so that the terminal generates the first timing relationship set according to the generation rule and the second timing relationship set defined or notified by the definition notification module.

[0054] In one embodiment, the uplink HARQ feedback indication information is carried in an information field of the DCI, and a bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

[0055] In one embodiment, the signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

[0056] In one embodiment, when the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is located in the first timing relationship set and the fixed value is pre-set by the current system or configured by the base station.

[0057] According to a fourth aspect of an embodiment of the present disclosure, a hybrid automatic repeat request HARQ feedback device is provided, which is applied to a terminal, and the device includes:

[0058] an information receiving module, configured to receive current downlink data sent by a base station and downlink control information DCI carrying uplink HARQ feedback indication information of the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0059] A parsing module, configured to parse the uplink HARQ feedback indication information from the DCI received by the information receiving module;

[0060] an acquisition module, configured to acquire, according to the uplink HARQ feedback indication information parsed by the parsing module and the first pre-stored timing relationship set, a timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data;

[0061] The sending module is configured to send the uplink HARQ feedback information of the current downlink data according to the timing relationship acquired by the acquisition module.

[0062] In one embodiment, the device further comprises:

[0063] A first reporting module, configured to report the capability information of the terminal to the base station;

[0064] The receiving and saving module is configured to receive and save the first timing relationship set sent by the base station according to the capability information reported by the first reporting module.

[0065] In one embodiment, the device further comprises:

[0066] An obtaining module is configured to obtain a second timing relationship set between a time domain unit where downlink data supported by the current system is located and a time domain unit of uplink HARQ feedback of the downlink data through a predefined signaling or a signaling sent by the base station;

[0067] A second reporting module, configured to report the capability information of the terminal to the base station;

[0068] a generation rule receiving module, configured to receive a generation rule of the first timing relationship set sent by the base station according to the capability information reported by the second reporting module;

[0069] A second generating module, configured to generate the first timing relationship set according to the generating rule received by the generating rule receiving module and the second timing relationship set obtained by the obtaining module;

[0070] A saving module is configured to save the first timing relationship set generated by the second generating module.

[0071] In one embodiment, the uplink HARQ feedback indication information is carried in an information field of the DCI, and a bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

[0072] In one embodiment, the signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

[0073] In one embodiment, when the terminal does not support the dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is located in the first timing relationship set, and the fixed value is pre-set by the current system or configured by the base station.

[0074] According to a fifth aspect of an embodiment of the present disclosure, a base station is provided, including:

[0075] processor;

[0076] a memory for storing processor-executable instructions;

[0077] Wherein, the processor is configured to:

[0078] Determine to send the current downlink data to the terminal;

[0079] Generate uplink HARQ feedback indication information for the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0080] The current downlink data and downlink control information DCI carrying the uplink HARQ feedback indication information are sent to the terminal.

[0081] According to a sixth aspect of an embodiment of the present disclosure, a user equipment is provided, including:

[0082] processor;

[0083] a memory for storing processor-executable instructions;

[0084] Wherein, the processor is configured to:

[0085] Receiving current downlink data and downlink control information DCI carrying uplink HARQ feedback indication information of the current downlink data sent by a base station, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0086] Parsing the uplink HARQ feedback indication information from the DCI;

[0087] Acquire, according to the uplink HARQ feedback indication information and the first pre-stored timing relationship set, a timing relationship between a time domain unit where the current downlink data is located and a time domain unit of uplink HARQ feedback of the current downlink data;

[0088] The uplink HARQ feedback information of the current downlink data is sent according to the acquired timing relationship.

[0089] According to a seventh aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which computer instructions are stored, and when the instructions are executed by a processor, the steps of the above-mentioned hybrid automatic repeat request HARQ feedback indication method are implemented.

[0090] According to an eighth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which computer instructions are stored, and when the instructions are executed by a processor, the steps of the above-mentioned hybrid automatic repeat request HARQ feedback method are implemented.

[0091] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0092] Generate uplink HARQ feedback indication information for the current downlink data, and send the current downlink data and DCI carrying the uplink HARQ feedback indication information to the terminal, so that the terminal can obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data according to the uplink HARQ feedback indication information and the pre-stored first timing relationship set, and send the uplink HARQ feedback information of the current downlink data according to the acquired timing relationship, so that the terminal can realize dynamic HARQ feedback.

[0093] Dynamic HARQ feedback is achieved by parsing uplink HARQ feedback indication information from the received DCI, obtaining the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data according to the uplink HARQ feedback indication information and a pre-stored first timing relationship set, and sending the uplink HARQ feedback information of the current downlink data according to the acquired timing relationship, thereby realizing dynamic HARQ feedback.

[0094] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0096] Figure 1 is a flow chart of a HARQ feedback indication method shown in an exemplary embodiment of the present application;

[0097] Figure 2 A flowchart of another HARQ feedback indication method shown in an exemplary embodiment of the present application;

[0098] Figure 3 A flowchart of another HARQ feedback indication method shown in an exemplary embodiment of the present application;

[0099] Figure 4 is a flow chart of a HARQ feedback method shown in an exemplary embodiment of the present application;

[0100] Figure 5 is a flowchart of another HARQ feedback method shown in an exemplary embodiment of the present application;

[0101] Figure 6 is a flowchart of another HARQ feedback method shown in an exemplary embodiment of the present application;

[0102] Figure 7 is a block diagram of a HARQ feedback indication device according to an exemplary embodiment;

[0103] Fig. 8A is a block diagram of another HARQ feedback indication device according to an exemplary embodiment;

[0104] Figure 8B is a block diagram of another HARQ feedback indication device according to an exemplary embodiment;

[0105] Fig. 9 is a block diagram of a HARQ feedback device according to an exemplary embodiment;

[0106] Fig. 10A is a block diagram of another HARQ feedback device according to an exemplary embodiment;

[0107] Fig. 10B is a block diagram of another HARQ feedback device according to an exemplary embodiment;

[0108] Fig.11 is a block diagram of a HARQ feedback indication device according to an exemplary embodiment;

[0109] Fig.12 The present invention is a block diagram of a HARQ feedback device according to an exemplary embodiment. DETAILED DESCRIPTION

[0110] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0111] Figure 1 is a flow chart of a HARQ feedback indication method shown in an exemplary embodiment of the present application. This embodiment is described from the base station side. Figure 1 As shown, the HARQ feedback indication method includes:

[0112] In step S101, it is determined to send current downlink data to the terminal.

[0113] In step S102, uplink HARQ feedback indication information is generated for the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data.

[0114] Among them, the base station can generate uplink HARQ feedback indication information for the current downlink data, and the uplink HARQ feedback indication information can be carried in the information field of DCI. The bit length of the information field can be a fixed value, and can also be determined based on the number of timing relationships included in the first timing relationship set. For example, if the first timing relationship set contains 4 timing relationships, the length of the information field is 2 bits.

[0115] In this embodiment, when the terminal supports dynamic HARQ feedback, the uplink HARQ feedback indication information may be different values ​​for different downlink data. When the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, which is located in the first timing relationship set, which may be preset by the current system or configured by the base station, and which may be one or more fixed values.

[0116] In step S103, current downlink data and downlink control information (DCI) carrying uplink HARQ feedback indication information are sent to the terminal.

[0117] After generating uplink HARQ feedback indication information for the current downlink data, the base station can send the current downlink data and DCI carrying the uplink HARQ feedback indication information to the terminal. After receiving the DCI, the terminal can obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data based on the parsed uplink HARQ feedback indication information and the pre-stored first timing relationship set, and send the uplink HARQ feedback information for the current downlink data based on the acquired timing relationship.

[0118] The above-mentioned embodiment generates uplink HARQ feedback indication information for the current downlink data, and sends the current downlink data and the DCI carrying the uplink HARQ feedback indication information to the terminal, so that the terminal can obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data according to the uplink HARQ feedback indication information and the pre-stored first timing relationship set, and sends the uplink HARQ feedback information of the current downlink data according to the acquired timing relationship, so that the terminal can realize dynamic HARQ feedback.

[0119] Figure 2 An exemplary embodiment of the present application shows a flowchart of another HARQ feedback indication method, such as Figure 2 As shown, in Figure 1 Based on the illustrated embodiment, the HARQ feedback indication method may further include:

[0120] In step S201, capability information reported by a terminal is received.

[0121] In step S202, if it is determined according to the capability information that the terminal supports dynamic HARQ feedback, a first timing relationship set is generated.

[0122] The above steps S201 and S202 occur before the above step S102.

[0123] In step S203, a first timing relationship set is sent to the terminal.

[0124] In the above embodiment, if it is determined that the terminal supports dynamic HARQ feedback, a first timing relationship set is generated and sent to the terminal, thereby providing conditions for generating uplink HARQ feedback indication information and sending uplink HARQ feedback information.

[0125] Figure 3 An exemplary embodiment of the present application shows a flowchart of another HARQ feedback indication method, such as Figure 3 As shown, in Figure 1 Based on the illustrated embodiment, the HARQ feedback indication method may further include:

[0126] In step S301, a second timing relationship set between a time domain unit where downlink data supported by the current system is located and a time domain unit of uplink HARQ feedback of the downlink data is predefined or the second timing relationship set is notified to the terminal through signaling.

[0127] The signaling includes radio resource control (RRC) signaling, medium access control (MAC) control element (CE) or physical layer signaling.

[0128] In step S302, capability information reported by the terminal is received.

[0129] In step S303, if it is determined according to the capability information that the terminal supports dynamic HARQ feedback, a generation rule for a first timing relationship set is generated.

[0130] Among them, the above steps S301 to S303 occur before the above step S102.

[0131] In step S304, the generation rule is sent to the terminal, so that the terminal generates the first timing relationship set according to the generation rule and the second timing relationship set.

[0132] The first timing relationship set is a subset of the second timing relationship set.

[0133] In the above embodiment, if it is determined that the terminal supports dynamic HARQ feedback, a generation rule for a first timing relationship set is generated, and the generation rule for generating the first timing relationship set is sent to the terminal, so that the terminal can generate the first timing relationship set according to the generation rule and the second timing relationship set, thereby providing conditions for generating uplink HARQ feedback indication information and uplink HARQ feedback information.

[0134] Figure 4 is a flowchart of a HARQ feedback method shown in an exemplary embodiment of the present application. This embodiment is described from the terminal side. Figure 4 As shown, the HARQ feedback method includes:

[0135] In step S401, the current downlink data and the DCI carrying the uplink HARQ feedback indication information of the current downlink data sent by the base station are received, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in the first timing relationship set between the time domain unit where the downlink data used by the terminal is located and the time domain unit of the uplink HARQ feedback of the downlink data.

[0136] Among them, the uplink HARQ feedback indication information can be carried in the information field of DCI, and the bit length of the information field can be a fixed value or can be determined based on the number of timing relationships included in the first timing relationship set. For example, if the first timing relationship set contains 4 timing relationships, the length of the information field is 2 bits.

[0137] In step S402, uplink HARQ feedback indication information is parsed from the DCI.

[0138] In step S403, the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data is obtained according to the uplink HARQ feedback indication information and the pre-stored first timing relationship set.

[0139] Assume that the first timing relationship set is as shown in Table 11:

[0140] Table 11: First Timing Relationship Set

[0141] Entry Timing relationship 00 1 symbol 01 2 symbols 10 4 symbols 11 10 symbols

[0142] If the uplink HARQ feedback indication information is 01, then according to the uplink HARQ feedback indication information and the first timing relationship set shown in Table 11, it can be obtained that the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data is 2 symbols.

[0143] In addition, it should be noted that the above Table 11 is only an example of the first timing relationship set. In actual applications, the first timing relationship set may also be in other formats, such as the format shown in Table 12.

[0144] Table 12: First Timing Relationship Set

[0145] Entry Timing relationship 1 1 symbol 2 2 symbols 3 4 symbols 4 10 symbols

[0146] Since the content of the entry in Table 12 does not correspond to the content indicated by the information field, the corresponding relationship between the content of the entry and the content indicated by the information field can be predefined, or the base station can notify the terminal of the corresponding relationship between the content of the entry and the content indicated by the information field through signaling. For example, the corresponding relationship can be: the content indicated by the information field 00, 01, 10, 11 corresponds to the entries 1, 2, 3, 4 in Table 12 respectively.

[0147] In step S404, uplink HARQ feedback information of the current downlink data is sent according to the acquired timing relationship.

[0148] Assume that the timing relationship is 2 symbols, and the terminal performs current downlink data transmission on symbol 3, then the terminal sends uplink HARQ feedback information of the current downlink data on symbol 5.

[0149] In the above-mentioned embodiment, uplink HARQ feedback indication information is parsed from the received DCI, and the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data is obtained according to the uplink HARQ feedback indication information and a pre-stored first timing relationship set, and the uplink HARQ feedback information of the current downlink data is sent according to the obtained timing relationship, thereby realizing dynamic HARQ feedback.

[0150] Figure 5 is a flowchart of another HARQ feedback method shown in an exemplary embodiment of the present application, such as Figure 5 As shown, the HARQ feedback method may also include:

[0151] In step S501, the capability information of the terminal is reported to the base station.

[0152] In step S502, a first timing relationship set sent by the base station according to the capability information is received and saved.

[0153] In the above embodiment, by reporting its own capability information to the base station, if the base station determines that the terminal supports dynamic HARQ feedback based on the capability information, a first timing relationship set is generated and sent to the terminal, thereby providing conditions for the terminal to obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data, thereby providing conditions for sending uplink HARQ feedback information.

[0154] Figure 6 is a flowchart of another HARQ feedback method shown in an exemplary embodiment of the present application, such as Figure 6 As shown, the HARQ feedback method may also include:

[0155] In step S601, a second timing relationship set between a time domain unit where downlink data supported by the current system is located and a time domain unit for uplink HARQ feedback of the downlink data is obtained through pre-defined or signaling sent by a base station.

[0156] The signaling includes RRC signaling, MAC CE or physical layer signaling.

[0157] In step S602, the capability information of the terminal is reported to the base station.

[0158] In step S603, a generation rule of a first timing relationship set sent by the receiving base station according to capability information is received.

[0159] In step S604, a first timing relationship set is generated according to the generation rule and the second timing relationship set.

[0160] In step S605, the first timing relationship set is saved.

[0161] The first timing relationship set is a subset of the second timing relationship set.

[0162] The above-mentioned embodiment, by obtaining the second timing relationship set, receives the generation rule of the first timing relationship set sent by the base station according to the capability information reported by the terminal, and generates the first timing relationship set according to the generation rule and the second timing relationship set, thereby providing conditions for the terminal to obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data, and further providing conditions for sending uplink HARQ feedback information.

[0163] Figure 7 is a block diagram of a HARQ feedback indication device according to an exemplary embodiment, and the device may be located in a base station, such as Figure 7 As shown, the device includes: a determination module 71, a first generation module 72 and a first sending module 73.

[0164] The determination module 71 is configured to determine whether to send the current downlink data to the terminal.

[0165] The first generation module 72 is configured to generate uplink HARQ feedback indication information for the current downlink data determined by the determination module 71, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between the time domain unit where the downlink data for use by the terminal is located and the time domain unit of the uplink HARQ feedback of the downlink data.

[0166] Among them, the base station can generate uplink HARQ feedback indication information for the current downlink data, and the uplink HARQ feedback indication information can be carried in the information field of DCI. The bit length of the information field can be a fixed value, and can also be determined based on the number of timing relationships included in the first timing relationship set. For example, if the first timing relationship set contains 4 timing relationships, the length of the information field is 2 bits.

[0167] In this embodiment, when the terminal supports dynamic HARQ feedback, the uplink HARQ feedback indication information may be different values ​​for different downlink data. When the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, which is located in the first timing relationship set, which may be preset by the current system or configured by the base station, and which may be one or more fixed values.

[0168] The first sending module 73 is configured to send current downlink data and downlink control information DCI carrying uplink HARQ feedback indication information generated by the first generating module 72 to the terminal.

[0169] After generating uplink HARQ feedback indication information for the current downlink data, the base station can send the current downlink data and DCI carrying the uplink HARQ feedback indication information to the terminal. After receiving the DCI, the terminal can obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data according to the parsed uplink HARQ feedback indication information and the pre-stored first timing relationship set, and send the uplink HARQ feedback information of the current downlink data according to the obtained timing relationship.

[0170] The above-mentioned embodiment generates uplink HARQ feedback indication information for the current downlink data, and sends the current downlink data and the DCI carrying the uplink HARQ feedback indication information to the terminal, so that the terminal can obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data according to the uplink HARQ feedback indication information and the pre-stored first timing relationship set, and sends the uplink HARQ feedback information of the current downlink data according to the acquired timing relationship, so that the terminal can realize dynamic HARQ feedback.

[0171] Fig. 8A is a block diagram of another HARQ feedback indication device according to an exemplary embodiment. Fig. 8A As shown in the above Figure 7 On the basis of the illustrated embodiment, the device may further include: a first receiving module 74 , a first determination generating module 75 and a second sending module 76 .

[0172] The first receiving module 74 is configured to receive capability information reported by the terminal.

[0173] The first determination generating module 75 is configured to generate a first timing relationship set if it is determined that the terminal supports dynamic HARQ feedback according to the capability information received by the first receiving module 74 .

[0174] The second sending module 76 is configured to send the first timing relationship set generated by the first determination generating module 75 to the terminal.

[0175] In the above embodiment, if it is determined that the terminal supports dynamic HARQ feedback, a first timing relationship set is generated and sent to the terminal, thereby providing conditions for generating uplink HARQ feedback indication information and sending uplink HARQ feedback information.

[0176] Figure 8B is a block diagram of another HARQ feedback indication device according to an exemplary embodiment. Figure 8B As shown in the above Figure 7 On the basis of the illustrated embodiment, the device further includes: a definition notification module 77 , a second receiving module 78 , a second determination generation module 79 and a third sending module 80 .

[0177] The definition notification module 77 is configured to predefine a second timing relationship set between the time domain unit where the downlink data supported by the current system is located and the time domain unit of the uplink HARQ feedback of the downlink data, or notify the terminal of the second timing relationship set through signaling.

[0178] The signaling includes radio resource control (RRC) signaling, medium access control (MAC) control element (CE) or physical layer signaling.

[0179] The second receiving module 78 is configured to receive capability information reported by the terminal.

[0180] The second determination generation module 79 is configured to generate a generation rule of the first timing relationship set if it is determined that the terminal supports dynamic HARQ feedback according to the capability information received by the second receiving module 78 .

[0181] The third sending module 80 is configured to send the generation rule generated by the second determination generation module 79 to the terminal, so that the terminal generates the first timing relationship set according to the generation rule and the second timing relationship set defined or notified by the definition notification module 77 .

[0182] The first timing relationship set is a subset of the second timing relationship set.

[0183] In the above embodiment, if it is determined that the terminal supports dynamic HARQ feedback, a generation rule for a first timing relationship set is generated, and the generation rule for generating the first timing relationship set is sent to the terminal, so that the terminal can generate the first timing relationship set according to the generation rule and the second timing relationship set, thereby providing conditions for generating uplink HARQ feedback indication information and uplink HARQ feedback information.

[0184] Fig. 9 is a block diagram of a HARQ feedback device according to an exemplary embodiment, the device may be located in a terminal, such as Fig. 9 As shown, the device includes: an information receiving module 91, a parsing module 92, an acquiring module 93 and a sending module 94.

[0185] The information receiving module 91 is configured to receive the current downlink data sent by the base station and the downlink control information DCI carrying the uplink HARQ feedback indication information of the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in the first timing relationship set between the time domain unit where the downlink data used by the terminal is located and the time domain unit of the uplink HARQ feedback of the downlink data.

[0186] Among them, the uplink HARQ feedback indication information can be carried in the information field of DCI, and the bit length of the information field can be a fixed value or can be determined based on the number of timing relationships included in the first timing relationship set. For example, if the first timing relationship set contains 4 timing relationships, the length of the information field is 2 bits.

[0187] The parsing module 92 is configured to parse the DCI received by the information receiving module 91 to obtain uplink HARQ feedback indication information.

[0188] The acquisition module 93 is configured to acquire the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data according to the uplink HARQ feedback indication information parsed by the parsing module 92 and the pre-stored first timing relationship set.

[0189] If the uplink HARQ feedback indication information is 01, then according to the uplink HARQ feedback indication information and the first timing relationship set shown in Table 11, it can be obtained that the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data is 2 symbols.

[0190] In addition, it should be noted that the above Table 11 is only an example of the first timing relationship set. In actual applications, the first timing relationship set may also be in other formats, such as the format shown in Table 12.

[0191] Since the content of the entry in Table 12 does not correspond to the content indicated by the information field, the corresponding relationship between the content of the entry and the content indicated by the information field can be predefined, or the base station can notify the terminal of the corresponding relationship between the content of the entry and the content indicated by the information field through signaling. For example, the corresponding relationship can be: the content indicated by the information field 00, 01, 10, 11 corresponds to the entries 1, 2, 3, 4 in Table 12 respectively.

[0192] The sending module 94 is configured to send uplink HARQ feedback information of the current downlink data according to the timing relationship acquired by the acquiring module 93 .

[0193] Assume that the timing relationship is 2 symbols, and the terminal performs current downlink data transmission on symbol 3, then the terminal sends uplink HARQ feedback information of the current downlink data on symbol 5.

[0194] In the above-mentioned embodiment, uplink HARQ feedback indication information is parsed from the received DCI, and the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data is obtained according to the uplink HARQ feedback indication information and a pre-stored first timing relationship set, and the uplink HARQ feedback information of the current downlink data is sent according to the obtained timing relationship, thereby realizing dynamic HARQ feedback.

[0195] Fig. 10A is a block diagram of another HARQ feedback device according to an exemplary embodiment. Fig. 10A As shown in the above Fig. 9 On the basis of the illustrated embodiment, the device may further include: a first reporting module 95 and a receiving and saving module 96 .

[0196] The first reporting module 95 is configured to report the capability information of the terminal to the base station.

[0197] The receiving and saving module 96 is configured to receive and save the first timing relationship set sent by the base station according to the capability information reported by the first reporting module 95 .

[0198] In the above embodiment, by reporting its own capability information to the base station, if the base station determines that the terminal supports dynamic HARQ feedback based on the capability information, a first timing relationship set is generated and sent to the terminal, thereby providing conditions for the terminal to obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data, thereby providing conditions for sending uplink HARQ feedback information.

[0199] Fig. 10B is a block diagram of another HARQ feedback device according to an exemplary embodiment. Fig. 10B As shown in the above Fig. 9 On the basis of the illustrated embodiment, the device may further include: an obtaining module 97 , a second reporting module 98 , a generation rule receiving module 99 , a second generation module 100 and a storage module 110 .

[0200] The obtaining module 97 is configured to obtain, through predefined or base station sent signaling, a second timing relationship set between the time domain unit where the downlink data supported by the current system is located and the time domain unit of the uplink HARQ feedback of the downlink data.

[0201] The signaling includes RRC signaling, MAC CE or physical layer signaling.

[0202] The second reporting module 98 is configured to report the capability information of the terminal to the base station.

[0203] The generation rule receiving module 99 is configured to receive a generation rule of the first timing relationship set sent by the base station according to the capability information reported by the second reporting module 98 .

[0204] The second generating module 100 is configured to generate a first timing relationship set according to the generating rule received by the generating rule receiving module 99 and the second timing relationship set obtained by the obtaining module 97 .

[0205] The saving module 110 is configured to save the first timing relationship set generated by the second generating module 100 .

[0206] The first timing relationship set is a subset of the second timing relationship set.

[0207] The above-mentioned embodiment, by obtaining the second timing relationship set, receives the generation rule of the first timing relationship set sent by the base station according to the capability information reported by the terminal, and generates the first timing relationship set according to the generation rule and the second timing relationship set, thereby providing conditions for the terminal to obtain the timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data, and further providing conditions for sending uplink HARQ feedback information.

[0208] Fig.11 1 is a block diagram of a HARQ feedback indication device according to an exemplary embodiment. The device 1100 may be provided as a base station. Fig.11 The device 1100 includes a processing component 1122, a wireless transmission / reception component 1124, an antenna component 1126, and a signal processing part specific to the wireless interface. The processing component 1122 may further include one or more processors.

[0209] One of the processors in the processing component 1122 may be configured to:

[0210] Determine to send the current downlink data to the terminal;

[0211] Generate uplink HARQ feedback indication information for current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where downlink data for use by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0212] Send the current downlink data and downlink control information DCI carrying uplink HARQ feedback indication information to the terminal.

[0213] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, and the instructions can be executed by the processing component 1122 of the device 1100 to complete the hybrid automatic repeat request HARQ feedback indication method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0214] Fig.12 1 is a block diagram of a HARQ feedback device according to an exemplary embodiment. For example, the device 1200 may be a user device such as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0215] Reference Fig.12 , the device 1200 may include one or more of the following components: a processing component 1202 , a memory 1204 , a power component 1206 , a multimedia component 1208 , an audio component 1210 , an input / output (I / O) interface 1212 , a sensor component 1214 , and a communication component 1216 .

[0216] The processing component 1202 generally controls the overall operation of the device 1200, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1202 may include one or more processors 1220 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 1202 may include one or more modules to facilitate interaction between the processing component 1202 and other components. For example, the processing component 1202 may include a multimedia module to facilitate interaction between the multimedia component 1208 and the processing component 1202.

[0217] One of the processors 1220 in the processing component 1202 may be configured to:

[0218] Receiving current downlink data and downlink control information DCI carrying uplink HARQ feedback indication information of the current downlink data sent by a base station, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data;

[0219] Parse uplink HARQ feedback indication information from DCI;

[0220] Acquire, according to the uplink HARQ feedback indication information and the pre-stored first timing relationship set, a timing relationship between a time domain unit where the current downlink data is located and a time domain unit of uplink HARQ feedback of the current downlink data;

[0221] The uplink HARQ feedback information of the current downlink data is sent according to the acquired timing relationship.

[0222] The memory 1204 is configured to store various types of data to support operations on the device 1200. Examples of such data include instructions for any application or method operating on the device 1200, contact data, phone book data, messages, pictures, videos, etc. The memory 1204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0223] The power supply component 1206 provides power to the various components of the device 1200. The power supply component 1206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 1200.

[0224] The multimedia component 1208 includes a screen that provides an output interface between the device 1200 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1208 includes a front camera and / or a rear camera. When the device 1200 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0225] The audio component 1210 is configured to output and / or input audio signals. For example, the audio component 1210 includes a microphone (MIC), and when the device 1200 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 1204 or sent via the communication component 1216. In some embodiments, the audio component 1210 also includes a speaker for outputting audio signals.

[0226] I / O interface 1212 provides an interface between processing component 1202 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0227] The sensor assembly 1214 includes one or more sensors for providing various aspects of the status assessment of the device 1200. For example, the sensor assembly 1214 can detect the open / closed state of the device 1200, the relative positioning of components, such as the display and keypad of the device 1200, the sensor assembly 1214 can also detect the position change of the device 1200 or a component of the device 1200, the presence or absence of user contact with the device 1200, the orientation or acceleration / deceleration of the device 1200, and the temperature change of the device 1200. The sensor assembly 1214 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1214 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1214 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0228] The communication component 1216 is configured to facilitate wired or wireless communication between the device 1200 and other devices. The device 1200 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1216 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1216 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0229] In an exemplary embodiment, the apparatus 1200 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-mentioned HARQ feedback method.

[0230] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1204 including instructions, and the instructions can be executed by the processor 1220 of the device 1200 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0231] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The device embodiment described above is only schematic, in which the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0232] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0233] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0234] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A hybrid automatic repeat request HARQ feedback indication method, characterized in that: Applied to a base station, the method comprises: Determine to send the current downlink data to the terminal; Generate uplink HARQ feedback indication information for the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data; Sending the current downlink data and downlink control information DCI carrying the uplink HARQ feedback indication information to the terminal; Receiving capability information reported by the terminal; If it is determined according to the capability information that the terminal supports dynamic HARQ feedback, generating the first timing relationship set; Sending the first timing relationship set to the terminal; The timing relationship further includes a second timing relationship set, where the second timing relationship set is a timing relationship set between a time unit where downlink data supported by the system is located and a time unit for uplink HARQ feedback of the downlink data; The first set of timing relationships is a subset of the second set of timing relationships.

2. The method according to claim 1, characterized in that The second timing relationship set is predefined or notified to the terminal through signaling.

3. The method according to claim 2, characterized in that The signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

4. The method according to claim 1, characterized in that: The uplink HARQ feedback indication information is carried in the information field of the DCI, and the bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

5. The method according to claim 4, characterized in that In the case where the bit length of the information field is determined based on the number of timing relations included in the first timing relationship set, the bit length of the information field is the same as the number of timing relations included in the first timing relationship set.

6. The method according to claim 1, characterized in that When the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is in the first timing relationship set and the fixed value is pre-set by the current system or configured by the base station, and the fixed value is one or more.

7. A hybrid automatic repeat request HARQ feedback method, characterized in that: Applied to a terminal, the method comprises: Receiving current downlink data and downlink control information DCI carrying uplink HARQ feedback indication information of the current downlink data sent by a base station, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data; Parsing the uplink HARQ feedback indication information from the DCI; Acquire, according to the uplink HARQ feedback indication information and the first pre-stored timing relationship set, a timing relationship between a time domain unit where the current downlink data is located and a time domain unit of uplink HARQ feedback of the current downlink data; Sending uplink HARQ feedback information of the current downlink data according to the acquired timing relationship; Reporting capability information of the terminal to the base station; receiving and storing the first timing relationship set sent by the base station according to the capability information; The timing relationship further includes a second timing relationship set, where the second timing relationship set is a timing relationship set between a time unit where downlink data supported by the system is located and a time unit for uplink HARQ feedback of the downlink data; The first set of timing relationships is a subset of the second set of timing relationships.

8. The method according to claim 7, characterized in that The second timing relationship set is predefined or obtained by receiving a signaling sent by a base station.

9. The method according to claim 8, characterized in that The signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

10. The method according to claim 7, characterized in that The uplink HARQ feedback indication information is carried in the information field of the DCI, and the bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

11. The method according to claim 10, characterized in that In the case where the bit length of the information field is determined based on the number of timing relations included in the first timing relationship set, the bit length of the information field is the same as the number of timing relations included in the first timing relationship set.

12. The method according to claim 7, characterized in that When the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is in the first timing relationship set, and the fixed value is pre-set by the current system or configured by the base station, and the fixed value is one or more.

13. A hybrid automatic repeat request HARQ feedback indication device, characterized in that: Applied to a base station, the device comprises: A determination module, configured to determine to send current downlink data to the terminal; A first generating module is configured to generate uplink HARQ feedback indication information for the current downlink data determined by the determining module, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data; A first sending module, configured to send the current downlink data and downlink control information DCI carrying the uplink HARQ feedback indication information generated by the first generating module to the terminal; A first receiving module is configured to receive capability information reported by the terminal; A first determination generating module is configured to generate the first timing relationship set if it is determined that the terminal supports dynamic HARQ feedback according to the capability information received by the first receiving module; a second sending module, configured to send the first timing relationship set generated by the first determination generating module to the terminal; The timing relationship further includes a second timing relationship set, where the second timing relationship set is a timing relationship set between a time unit where downlink data supported by the system is located and a time unit for uplink HARQ feedback of the downlink data; The first set of timing relationships is a subset of the second set of timing relationships.

14. The device according to claim 13, characterized in that The second timing relationship set is predefined or notified to the terminal through signaling.

15. The device according to claim 14, characterized in that The signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

16. The device according to claim 13, characterized in that The uplink HARQ feedback indication information is carried in the information field of the DCI, and the bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

17. The device according to claim 16, characterized in that When the bit length of the information field is determined based on the number of timing relations included in the first timing relationship set, the bit length of the information field is the same as the number of timing relations included in the first timing relationship set.

18. The device according to claim 13, characterized in that When the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is in the first timing relationship set and the fixed value is pre-set by the current system or configured by the base station, and the fixed value is one or more.

19. A hybrid automatic repeat request HARQ feedback device, characterized in that: Applied to a terminal, the device comprises: an information receiving module, configured to receive current downlink data sent by a base station and downlink control information DCI carrying uplink HARQ feedback indication information of the current downlink data, wherein the timing relationship indicated by the uplink HARQ feedback indication information is located in a first timing relationship set between a time domain unit where the downlink data used by the terminal is located and a time domain unit of uplink HARQ feedback of the downlink data; A parsing module, configured to parse the uplink HARQ feedback indication information from the DCI received by the information receiving module; an acquisition module, configured to acquire, according to the uplink HARQ feedback indication information parsed by the parsing module and the first pre-stored timing relationship set, a timing relationship between the time domain unit where the current downlink data is located and the time domain unit of the uplink HARQ feedback of the current downlink data; a sending module, configured to send uplink HARQ feedback information of the current downlink data according to the timing relationship acquired by the acquiring module; A first reporting module, configured to report the capability information of the terminal to the base station; a receiving and saving module, configured to receive and save the first timing relationship set sent by the base station according to the capability information reported by the first reporting module; The timing relationship further includes a second timing relationship set, where the second timing relationship set is a timing relationship set between a time unit where downlink data supported by the system is located and a time unit for uplink HARQ feedback of the downlink data; The first set of timing relationships is a subset of the second set of timing relationships.

20. The device according to claim 19, characterized in that The second timing relationship set is predefined or obtained by receiving a signaling sent by a base station.

21. The device according to claim 20, characterized in that The signaling includes radio resource control RRC signaling, medium access control MAC control element CE or physical layer signaling.

22. The device according to claim 19, characterized in that The uplink HARQ feedback indication information is carried in the information field of the DCI, and the bit length of the information field is a fixed value or is determined based on the number of timing relations included in the first timing relationship set.

23. The device according to claim 22, characterized in that In the case where the bit length of the information field is determined based on the number of timing relations included in the first timing relationship set, the bit length of the information field is the same as the number of timing relations included in the first timing relationship set.

24. The device according to claim 19, characterized in that When the terminal does not support dynamic HARQ feedback, the uplink HARQ feedback indication information is a fixed value, the fixed value is in the first timing relationship set, and the fixed value is pre-set by the current system or configured by the base station, and the fixed value is one or more.

25. A base station, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to execute the executable instructions to implement the hybrid automatic repeat request HARQ feedback indication method as described in any one of claims 1 to 6.

26. A user equipment, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to execute the executable instructions to implement the hybrid automatic repeat request HARQ feedback method as described in any one of claims 7 to 12.

27. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the instruction is executed by the processor, the steps of the hybrid automatic repeat request HARQ feedback indication method described in any one of claims 1 to 6 are implemented.

28. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the instruction is executed by the processor, the steps of the hybrid automatic repeat request HARQ feedback method described in any one of claims 7 to 12 are implemented.

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