Control method and device of hybrid automatic repeat request function

Abstract

A control method and device for a hybrid automatic repeat request function, the method comprising: when a network side device needs to turn off the hybrid automatic repeat request function HARQ function of a terminal, the network side device sends a first downlink control information DCI to the terminal, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value. The embodiment of the present invention can reuse the HARQ feedback timing indication field of the PDSCH transmission to dynamically indicate the on / off state of the HARQ function, so as to realize flexible control of the HARQ function and reduce the storage space requirement for the receiving end.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile communications, and in particular to a control method and device for a hybrid automatic repeat request function. Background Art

[0002] Information may be lost during channel transmission. In order to maintain information integrity, it is necessary to retransmit information so that all information can be received correctly. A retransmission mechanism is designed in the communication system to ensure data transmission reliability, including: the Hybrid Automatic Repeat reQuest (HARQ) mechanism of the Medium Access Control (MAC) layer and the Automatic Repeat reQuest (ARQ) mechanism of the Radio Link Control (RLC) layer.

[0003] The calculation of the minimum number of HARQ processes required in the communication system is related to the transmission delay, especially the round-trip time (RTT). In the integrated space-ground system, due to the different satellite altitudes and the different bend pipe transmission or on-board transmission methods, the RTT size is different, and the minimum number of HARQ processes required is also different. Table 1 provides an example of the minimum number of HARQ processes required in different communication scenarios. When the subcarrier spacing is 15kHz, the minimum number of HARQ processes required in different scenarios such as terrestrial networks (Terrestrial), low earth orbit satellite systems (LEO, 1500km), medium earth orbit satellite systems (MEO, 10000km), and earth orbit satellite systems (GEO, 35786km) can be estimated.

[0004]

[0005] Table 1

[0006] The number of HARQ processes in the integrated air-ground-space system is usually much greater than the maximum number of 16 HARQ processes currently supported by the user equipment (UE) defined by the ground network. Too many HARQ processes require the receiving end to have a large storage space. Summary of the invention

[0007] At least one embodiment of the present invention provides a method and device for controlling a hybrid automatic repeat request function, which can reduce the storage space requirement on a receiving end.

[0008] According to one aspect of the present invention, at least one embodiment provides a method for controlling a hybrid automatic repeat request function, including:

[0009] When the network side device needs to turn off the hybrid automatic repeat request function HARQ function of the terminal, the network side device sends the first downlink control information DCI to the terminal, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0010] In addition, according to at least one embodiment of the present invention, the value of the HARQ feedback timing indication field is the first value; before sending the first DCI to the terminal, the method further includes:

[0011] The network side device configures a timing value sequence for the terminal, wherein the length I of the timing value sequence makes log 2 (I) is a non-integer.

[0012] In addition, according to at least one embodiment of the present invention, the network side device configures the timing value sequence for the terminal, specifically: the network side device sends a first radio resource control RRC signaling to the terminal, wherein the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is such that log 2 (I) is a non-integer.

[0013] In addition, according to at least one embodiment of the present invention, when the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary;

[0014] When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary;

[0015] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary;

[0016] When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

[0017] In addition, according to at least one embodiment of the present invention, the value of the HARQ feedback timing indication field is the second value; before sending the first DCI to the terminal, the method further includes:

[0018] The network side device sends a second RRC signaling to the terminal, the second RRC signaling carries a second high-layer parameter for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value.

[0019] In addition, according to at least one embodiment of the present invention, the timing value sequence also includes: various candidate values ​​of the time slot timing, wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0020] Furthermore, according to at least one embodiment of the present invention, the time slot timing extension value is located at a preset position in the timing value sequence;

[0021] The second value is used to indicate the preset position in the time slot timing extension value.

[0022] Furthermore, according to at least one embodiment of the present invention, the timing value is a time slot timing value.

[0023] According to another aspect of the present invention, at least one embodiment provides a method for controlling a hybrid automatic repeat request function, characterized by comprising:

[0024] The terminal receives a first DCI sent by a network side device;

[0025] The terminal stops HARQ feedback of the PDSCH transmission when the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0026] In addition, according to at least one embodiment of the present invention, the value of the HARQ feedback timing indication field is the first value; before receiving the first DCI, the method further includes:

[0027] The terminal receives a first RRC signaling sent by the network side device, wherein the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is set so that log 2 (I) is a non-integer.

[0028] In addition, according to at least one embodiment of the present invention, when the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary;

[0029] When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary;

[0030] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary;

[0031] When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

[0032] In addition, according to at least one embodiment of the present invention, the value of the HARQ feedback timing indication field is the second value; before receiving the first DCI, the method further includes:

[0033] The terminal receives a second RRC signaling sent by a network side device, the second RRC signaling carries a second high-level parameter for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value.

[0034] In addition, according to at least one embodiment of the present invention, the timing value sequence also includes: various candidate values ​​of the time slot timing, wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0035] In addition, according to at least one embodiment of the present invention, the time slot timing extension value is located at a preset position in the timing value sequence; and the second value is used to indicate the preset position in the time slot timing extension value.

[0036] Furthermore, according to at least one embodiment of the present invention, the timing value is a time slot timing value.

[0037] According to another aspect of the present invention, at least one embodiment provides a network side device, including:

[0038] A sending module is used to send first downlink control information DCI to the terminal when the HARQ function of the terminal needs to be turned off, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0039] According to another aspect of the present invention, at least one embodiment provides a network side device, including a transceiver and a processor, wherein:

[0040] The processor is used to determine whether it is necessary to disable the HARQ function of the terminal;

[0041] The transceiver is used to send first downlink control information DCI to the terminal when the HARQ function of the terminal needs to be turned off, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0042] According to another aspect of the present invention, at least one embodiment provides a network side device, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program implements the steps of the above method when executed by the processor.

[0043] According to another aspect of the present invention, at least one embodiment provides a terminal, including:

[0044] A receiving module, configured to receive a first DCI sent by a network side device;

[0045] A control module is used to stop the HARQ feedback of the PDSCH transmission when the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0046] According to another aspect of the present invention, at least one embodiment provides a terminal, including a transceiver and a processor, wherein:

[0047] The transceiver is used to receive a first DCI sent by a network side device;

[0048] The processor is used to stop the HARQ feedback of the PDSCH transmission when the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0049] According to another aspect of the present invention, at least one embodiment provides a terminal, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program implements the steps of the above method when executed by the processor.

[0050] According to another aspect of the present invention, at least one embodiment provides a computer-readable storage medium, on which a program is stored. When the program is executed by a processor, the steps of the method described above are implemented.

[0051] Compared with the prior art, the control method and device of the hybrid automatic repeat request function provided by the embodiment of the present invention dynamically indicates the switch state of the HARQ function by multiplexing the HARQ feedback timing indication field transmitted by the PDSCH, which can realize flexible control of the HARQ function and reduce the storage space requirement of the receiving end. In addition, the embodiment of the present invention can also not change the existing DCI format and length, has good compatibility and is simple to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0053] Figure 1 A flow chart of a method for controlling a hybrid automatic repeat request function according to an embodiment of the present invention;

[0054] Figure 2 Another flow chart of a method for controlling a hybrid automatic repeat request function according to an embodiment of the present invention;

[0055] Figure 3 A schematic diagram of the structure of a network side device provided by an embodiment of the present invention;

[0056] Figure 4 Another structural diagram of a network side device provided by an embodiment of the present invention;

[0057] Figure 5 A schematic diagram of the structure of a terminal provided by an embodiment of the present invention;

[0058] Figure 6 Another structural schematic diagram of a terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0059] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0060] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable in appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment. "And / or" in the specification and claims represents at least one of the connected objects.

[0061] The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made to the functions and arrangements of the elements discussed without departing from the spirit and scope of the present disclosure. Various examples may appropriately omit, replace, or add various procedures or components. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0062] As described in the background technology, the number of HARQ processes in the air-ground integrated system is far more than the maximum 16 HARQ processes that the UE can support as defined by the ground network, which requires the receiving end to have a larger storage space. The semi-static HARQ disabling mechanism can reduce the requirement for storage space, that is, the network end can configure the switch state of HARQ. When the HARQ function is turned off, there will be no uplink ACK / NACK feedback for downlink data transmission, thereby reducing the number of HARQ processes and reducing the requirement for storage space.

[0063] The new radio (NR) system supports dynamic indication of HARQ transmission. The fields and bit numbers related to HARQ in downlink control information (DCI) format 1-0 and DCI format 1-1 are shown in Table 2:

[0064] DCI field Format 1-0 (bits) Format 1-1 (bits) Number of HARQ processes 4 4 New Data Indicator (NDI) 1 1 Redundancy Version (RV) 2 2 Downlink Allocation Index (DAI) 2 0,2,4 TPC command for scheduling PUCCH 2 2 PUCCH resource indication 3 3 HARQ feedback timing indication for PDSCH transmission 3 0,1,2,3

[0065] Table 2

[0066] The HARQ feedback timing indication field transmitted by the physical downlink shared channel (PDSCH) is used to indicate the timing relationship of the HARQ ACK / NACK feedback corresponding to the scheduled PDSCH.

[0067] The network side device may configure the first high-level parameter, such as dl-DataToUL-ACK, through RRC signaling. A configuration example of the first high-level parameter is shown in the following pseudo code:

[0068] dl-DataToUL-ACK SEQUENCE(SIZE(1..8))OF INTEGER(0..15) OPTIONAL,--NeedM

[0069] In the above configuration, the high-level parameter dl-DataToUL-ACK configures the length of the timing value sequence to range from 0 to 8, and the timing value to range from 0 to 15.

[0070] As shown in Table 2, when using DCI format 1-0, the HARQ feedback timing indication field of PDSCH transmission includes 3 bits, and the range of selectable timing values ​​is {1,2,3,4,5,6,7,8}. When using DCI format 1-1, the size of its bit is It is related to the length I of the timing value sequence configured by the high-level parameter dl-DataToUL-ACK. The bit length of this field can be 1 to 3 bits. The mapping relationship between the field value and the timing value is shown in Table 3.

[0071]

[0072] Table 3

[0073] When the HARQ function is turned off, there is no uplink ACK / NACK feedback in the PDSCH transmission, so there is no need to configure the corresponding feedback slot timing relationship. In different application scenarios, different services have different requirements for the number of HARQ processes. For example, when the user terminal switches from the terrestrial network to the satellite network, the HARQ mechanism can be turned off dynamically. Therefore, considering different application scenarios and the user's ability to handle the HARQ process, it is also possible to support the dynamic indication of the HARQ switch mechanism through DCI to improve the flexibility of HARQ switch control. In order to reduce the impact on the DCI format and size (size) in the prior art, the embodiment of the present invention reuses the HARQ feedback timing indication field of the PDSCH transmission to dynamically indicate the switch status of the HARQ function.

[0074] Please refer to Figure 1 A control method for a hybrid automatic repeat request function provided by an embodiment of the present invention, when applied to a network side device (such as a base station or a satellite, etc.), includes:

[0075] Step 11, when the network side device needs to shut down the HARQ function of the terminal, the network side device sends a first DCI to the terminal, wherein the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0076] Here, the value of the HARQ feedback timing indication field of the PDSCH transmission (for the convenience of description, the HARQ feedback timing indication field of the PDSCH transmission is referred to as the indication field below) is the first value or the second value. For example, there is no corresponding timing value (i.e., k in Table 3) for the first value, that is, there is no corresponding k value for the first value. At this time, the first value can be used to instruct the terminal to turn off the HARQ function. For another example, the second value corresponds to a preset time slot timing extension value, and the time slot timing extension value is a value other than the timing value pre-configured by the terminal. For example, assuming that the timing value ranges from 0 to 15, and a time slot timing extension value different from any value in the range of 0 to 15 is configured, such as 16, the second value can be used to instruct the terminal to turn off the HARQ function.

[0077] Specifically, the timing value may be a time slot timing value, and the timing value sequence may be a time slot timing value sequence.

[0078] It can be seen from the above that the embodiment of the present invention realizes dynamic indication of the on / off state of the HARQ function by multiplexing or redefining the HARQ feedback timing indication field of the PDSCH transmission in the DCI, thereby reducing the storage space requirement on the receiving end.

[0079] For example, the network side device may determine, based on the terminal status information reported by the terminal, that the number of HARQ processes that the terminal can support is less than a preset threshold, or that the available storage space of the terminal is less than a preset value or a preset ratio, and then execute the above step 11 to send the first DCI to the terminal to instruct the terminal to turn off the HARQ function. For another example, the network side device may send the first DCI to the terminal to instruct the terminal to turn off the HARQ function based on the indication information of the channel quality reported by the terminal when the channel quality between the network side device and the terminal meets the preset quality requirement.

[0080] In the embodiment of the present invention, when the value of the HARQ feedback timing indication field is the first value, the network side device may further configure a timing value sequence for the terminal before the above step 11, wherein the length I of the timing value sequence is such that log 2 (I) is a non-integer. For example, the network side device may send a first RRC signaling to the terminal, wherein the first RRC signaling carries a first high-level parameter (such as dl-DataToUL-ACK) for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is such that log 2 (I) is a non-integer.

[0081] In this way, the number of bits of the indication field in the first DCI is There are reserved values ​​that do not correspond to any timing values, specifically:

[0082] When the length of the timing value sequence configured by the first high-level parameter is 3, the length of the indication field is 2 bits, and the first value is 11 in binary;

[0083] When the length of the timing value sequence configured by the first high-level parameter is 5, the length of the indication field is 3 bits, and the first value is 101, 110 or 111 in binary;

[0084] When the length of the timing value sequence configured by the first high-level parameter is 6, the length of the indication field is 3 bits, and the first value is 110 or 111 in binary;

[0085] When the length of the timing value sequence configured by the first high-level parameter is 7, the length of the indication field is 3 bits, and the first value is 111 in binary.

[0086] In an embodiment of the present invention, when the value of the HARQ feedback timing indication field is the second value, the network side device may further send a second RRC signaling to the terminal before the above step 11, and the second RRC signaling carries a second high-level parameter (such as dl-DataToUL-ACK) for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value. For example, assuming that the timing value range is 0 to 15, and the time slot timing extension value is 16, at this time, the timing value sequence configured by the second RRC signaling includes 16. Of course, the timing value sequence may also include various candidate values ​​of the time slot timing (i.e., the timing value configured by the RRC signaling, such as the values ​​0 to 15 in the previous text), wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0087] Here, the time slot timing extension value is located at a preset position in the timing value sequence, and the second value is used to indicate the preset position in the time slot timing extension value. For example, the preset position may be the head position in the timing value sequence (i.e., the first value in the queue), so, referring to Table 3, the second value is binary all 0s, which is used to indicate the first value in the queue.

[0088] Through the above steps, the embodiment of the present invention can reuse the HARQ feedback timing indication field of PDSCH transmission to dynamically indicate the on / off state of the HARQ function, thereby realizing flexible control of the HARQ function and reducing the storage space requirement on the receiving end.

[0089] The method of the embodiment of the present invention is described below from the perspective of the receiving end.

[0090] Please refer to Figure 2 The control method of the hybrid automatic repeat request function provided by the embodiment of the present invention, when applied to the terminal side, includes:

[0091] Step 21: The terminal receives the first DCI sent by the network side device.

[0092] Step 22, when the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, the terminal stops the HARQ feedback of the PDSCH transmission, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0093] Through the above steps, the embodiment of the present invention can reuse the HARQ feedback timing indication field of PDSCH transmission to dynamically instruct the terminal to turn off the HARQ function, thereby achieving flexible control of the HARQ function and reducing the storage space requirement on the receiving end.

[0094] For example, when the value of the HARQ feedback timing indication field is the first value, the terminal may further receive a first RRC signaling sent by the network side device before receiving the first DCI, wherein the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is set such that log 2 (I) is a non-integer.

[0095] Specifically, when the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary;

[0096] When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary;

[0097] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary;

[0098] When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

[0099] For another example, when the value of the HARQ feedback timing indication field is the second value, the terminal may also receive a second RRC signaling sent by a network-side device before receiving the first DCI, and the second RRC signaling carries a second high-level parameter for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value. In addition, the timing value sequence may also include: various candidate values ​​of the time slot timing, wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0100] Specifically, the time slot timing extension value is located at a preset position in the timing value sequence (such as the head position, a specific position in the middle of the queue, or the tail position, etc.); the second value is used to indicate the preset position in the time slot timing extension value. For example, when the preset position is the head position in the timing value sequence (i.e., the first value in the queue), as shown in Table 3, the second value is all 0s in binary, which is used to indicate the first value in the queue.

[0101] Several more specific examples are provided below to further describe the method of the embodiment of the present invention.

[0102] Example 1:

[0103] When the length of the timing value sequence configured by the RRC parameter dl-DataToUL-ACK is 3, 5, 6 or 7, that is, the sequence length does not meet the log 2 When (I) is an integer, the bit values ​​of the HARQ feedback timing indication field of the PDSCH transmission in the multiplexed DCI format 1-1 are all 1, indicating that the HARQ function is turned off.

[0104] Optionally, when the base station determines that the HARQ function needs to be turned off according to the application scenario or the number of HARQ processes supported by the UE, the timing value sequence length configured in the RRC parameter dl-DataToUL-ACK may not satisfy the log 2(I) is an integer value, such as 3, 5, 6 or 7. In particular, considering the size overhead of DCI, the length of the timing value sequence configured by dl-DataToUL-ACK is 3, so that the length of the HARQ feedback timing indication field of the PDSCH transmission only needs 2 bits, so when the bit value of the HARQ feedback timing indication field of the PDSCH transmission is binary '11', it indicates that the terminal turns off the HARQ function.

[0105] For example, the timing value sequence (sequence) configured by the RRC parameter dl-DataToUL-ACK is {1,5,8,12,13}. It can be seen that the sequence includes 5 elements and its length is 5. According to Table 3, when the HARQ function is turned on, the value of the HARQ feedback timing indication field of the PDSCH transmission can only be binary '000', '001', '010', '011', '100' to be mapped to the corresponding slot timing value. The other values ​​of this field, '101', '110', '111', are in an idle state. Therefore, it is possible to consider reusing the bit value of this field, such as '111', as a special value for turning off the HARQ function.

[0106] The above scheme can dynamically turn off the HARQ function through the special sequence length of the RRC parameter dl-DataToUL-ACK and the idle state value of the HARQ feedback timing indication field of the PDSCH transmission without changing the DCI format and the RRC parameter value range.

[0107] Example 2:

[0108] The value range of the timing value (slottiming) of the timing value sequence (sequence) configured by the RRC parameter dl-DataToUL-ACK is expanded. For example, the value range can be expanded from (0..15) to (0..16), and the value 16 is added. The value 16 is used as the slot timing extension value. By multiplexing the HARQ feedback timing indication field of the PDSCH transmission in DCI format 1-1, when the slot timing extension value corresponding to the value of the indication field is 16, it indicates that the HARQ function is turned off. A pseudo code example of the above configuration is given below: dl-DataToUL-ACK SEQUENCE(SIZE(1..8))OF INTEGER(0..16)OPTIONAL,--Need M

[0109] The above pseudo code expands the range of the slot timing of the RRC parameter dl-DataToUL-ACK configuration timing value sequence from (0..15) to (0..16). When configuring the sequence value, RRC configures 16 as an optional value, and this value 16 is located at the first position of the dl-DataToUL-ACK configuration timing value sequence. In this way, when the HARQ feedback timing indication field of the PDSCH transmission in the multiplexed DCI format 1-1 is all 0, the corresponding slot timing is 16, indicating that the HARQ function is turned off. In addition, the length of the HARQ feedback timing indication field of the PDSCH transmission in the DCI format 1-1 can be directly 1, and the value of '0' indicates that the HARQ function is turned off, which is equivalent to designing a flag that can turn off the HARQ function in the RRC. By enabling this flag in the DCI, the terminal can be instructed to turn off the HARQ function.

[0110] For example, the timing value sequence (sequence) configured by the RRC parameter dl-DataToUL-ACK is {16,1,5,8}, that is, the queue length (size) is 4. According to Table 3, the number of bits in the HARQ feedback timing indication field of the PDSCH transmission is 2 at this time. When its value is '00', the corresponding slot timing value is 16, which means that the HARQ function is turned off.

[0111] This solution can expand the sequence value range of the RRC parameter dl-DataToUL-ACK configuration without changing the DCI format, so that the HARQ feedback timing indication field of the PDSCH transmission can be multiplexed to indicate the corresponding timing value of the slot timing extension value (such as 16), thereby dynamically turning off the HARQ function. In addition, the value 16 can also be regarded as a flag set by RRC, and this flag is enabled by DCI. At this time, the size of the HARQ feedback timing indication field of the PDSCH transmission in the DCI is not limited by the sequence length configured by dl-DataToUL-ACK.

[0112] From the above, it can be seen that the above method proposed in the embodiment of the present invention can dynamically turn off the HARQ function, solve the problems of large transmission delay in the air-ground integrated system, large storage space at the receiving end caused by too many HARQ processes, etc. In addition, the embodiment of the present invention can also dynamically and flexibly indicate the switch state of the HARQ function in the DCI, without changing the existing DCI format and length, with good compatibility and simple implementation.

[0113] The above describes various methods of the embodiments of the present invention. The following further provides devices for implementing the above methods.

[0114] The embodiment of the present invention provides Figure 4 A network side device 40 shown includes:

[0115] The sending module 41 is used to send the first downlink control information DCI to the terminal when the HARQ function of the terminal needs to be turned off, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0116] Through the above modules, the embodiment of the present invention can dynamically disable the HARQ function of the terminal and reduce the storage space requirement of the terminal.

[0117] Optionally, the value of the HARQ feedback timing indication field is the first value;

[0118] The network side device also includes:

[0119] A first configuration module is used to configure a timing value sequence for the terminal before sending the first DCI to the terminal, wherein the length I of the timing value sequence makes log 2 (I) is a non-integer.

[0120] Optionally, the first configuration module is also used to configure a timing value sequence for the terminal, specifically: the network side device sends a first radio resource control RRC signaling to the terminal, wherein the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is such that log 2 (I) is a non-integer.

[0121] Optionally, when the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary;

[0122] When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary;

[0123] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary;

[0124] When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

[0125] Optionally, the value of the HARQ feedback timing indication field is the second value;

[0126] The network side device also includes:

[0127] The second configuration module is used to send a second RRC signaling to the terminal before sending the first DCI to the terminal, the second RRC signaling carries a second high-level parameter for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value.

[0128] Optionally, the timing value sequence also includes: various candidate values ​​of the time slot timing, wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0129] Optionally, the time slot timing extension value is located at a preset position in the timing value sequence;

[0130] The second value is used to indicate the preset position in the time slot timing extension value.

[0131] Optionally, the timing value is a time slot timing value.

[0132] It should be noted that the device in this embodiment is the same as the above Figure 1 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effect. It should be noted that the above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be described in detail here.

[0133] Please refer to Figure 5 , an embodiment of the present invention provides a schematic diagram of a structure of a network side device 500, including: a processor 501, a transceiver 502, a memory 503 and a bus interface, wherein:

[0134] In the embodiment of the present invention, the network side device 500 further includes: a program stored in the memory 503 and executable on the processor 501, and when the program is executed by the processor 501, the following steps are implemented:

[0135] When the HARQ function of the terminal needs to be turned off, first downlink control information DCI is sent to the terminal, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0136] Optionally, the value of the HARQ feedback timing indication field is the first value; and when the processor executes the program, the following steps are further implemented:

[0137] Before sending the first DCI to the terminal, a timing value sequence is configured for the terminal, wherein the length I of the timing value sequence makes log 2 (I) is a non-integer.

[0138] Optionally, when the processor executes the program, the processor further implements the following steps:

[0139] Configuring a timing value sequence for the terminal, specifically: the network side device sends a first radio resource control RRC signaling to the terminal, wherein the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is such that log 2 (I) is a non-integer.

[0140] Optionally, when the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary;

[0141] When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary;

[0142] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary;

[0143] When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

[0144] Optionally, the value of the HARQ feedback timing indication field is the second value; and when the processor executes the program, the following steps are further implemented:

[0145] Before sending the first DCI to the terminal, a second RRC signaling is sent to the terminal, the second RRC signaling carries a second high-layer parameter for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value.

[0146] Optionally, the timing value sequence also includes: various candidate values ​​of the time slot timing, wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0147] Optionally, the time slot timing extension value is located at a preset position in the timing value sequence;

[0148] The second value is used to indicate the preset position in the time slot timing extension value.

[0149] Optionally, the timing value is a time slot timing value.

[0150] It is understandable that in the embodiment of the present invention, when the computer program is executed by the processor 501, the above Figure 1 The various processes of the embodiment of the control method of the hybrid automatic repeat request function shown in the figure can achieve the same technical effect, and will not be described again here to avoid repetition.

[0151] exist Figure 5 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 501 and memory represented by memory 503. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 502 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0152] The processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 can store data used by the processor 501 when performing operations.

[0153] It should be noted that the terminal in this embodiment is the same as the above Figure 1 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effect. In the device, the transceiver 502 and the memory 503, as well as the transceiver 502 and the processor 501 can be connected through the bus interface communication, the function of the processor 501 can also be implemented by the transceiver 502, and the function of the transceiver 502 can also be implemented by the processor 501. It should be noted that the above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effect, and the parts and beneficial effects that are the same as the method embodiment in this embodiment will not be specifically repeated here.

[0154] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a program is stored, and when the program is executed by a processor, the following steps are implemented:

[0155] When the HARQ function of the terminal needs to be turned off, first downlink control information DCI is sent to the terminal, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0156] When the program is executed by the processor, it can implement all the implementation methods in the above-mentioned control method for the hybrid automatic repeat request function applied to the network side device, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0157] Please refer to Figure 6 , an embodiment of the present invention provides a terminal 60, including:

[0158] A receiving module 61, configured to receive a first DCI sent by a network side device;

[0159] The control module 62 is used to stop the HARQ feedback of the PDSCH transmission when the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0160] Through the above modules, the embodiment of the present invention can dynamically disable the HARQ function and reduce the requirement on the terminal storage space.

[0161] Optionally, the value of the HARQ feedback timing indication field is the first value; the receiving module 61 is further used to receive a first RRC signaling sent by the network side device, the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is set so that log 2 (I) is a non-integer.

[0162] Optionally, when the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary;

[0163] When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary;

[0164] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary;

[0165] When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

[0166] Optionally, the value of the HARQ feedback timing indication field is the second value; the receiving module 61 is also used to receive a second RRC signaling sent by a network side device, the second RRC signaling carries a second high-level parameter for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value.

[0167] Optionally, the timing value sequence also includes: various candidate values ​​of the time slot timing, wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0168] Optionally, the time slot timing extension value is located at a preset position in the timing value sequence;

[0169] The second value is used to indicate the preset position in the time slot timing extension value.

[0170] Optionally, the timing value is a time slot timing value.

[0171] It should be noted that the device in this embodiment is the same as the above Figure 2 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effect. The above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be specifically described here.

[0172] Please refer to Figure 6 , a schematic diagram of a structure of a terminal provided in an embodiment of the present invention, the terminal 600 includes: a processor 601, a transceiver 602, a memory 603, a user interface 604 and a bus interface.

[0173] In the embodiment of the present invention, the terminal 600 further includes: a program stored in the memory 603 and executable on the processor 601 .

[0174] When the processor 601 executes the program, the following steps are implemented:

[0175] Receive a first DCI sent by a network side device;

[0176] When the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, the HARQ feedback of the PDSCH transmission is stopped, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0177] Optionally, the value of the HARQ feedback timing indication field is the first value; and when the processor executes the program, the following steps are further implemented:

[0178] Before receiving the first DCI, a first RRC signaling sent by the network side device is received, wherein the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is set so that log 2 (I) is a non-integer.

[0179] Optionally, when the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary;

[0180] When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary;

[0181] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary;

[0182] When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 111 in binary.

[0183] Optionally, the value of the HARQ feedback timing indication field is the second value; and when the processor executes the program, the following steps are further implemented:

[0184] Before receiving the first DCI, a second RRC signaling sent by a network side device is received, the second RRC signaling carries a second high-layer parameter for configuring the timing value sequence, and the timing value sequence includes the time slot timing extension value.

[0185] Optionally, the timing value sequence also includes: various candidate values ​​of the time slot timing, wherein the value of the time slot timing extension value is different from the candidate value of the time slot timing.

[0186] Optionally, the time slot timing extension value is located at a preset position in the timing value sequence;

[0187] The second value is used to indicate the preset position in the time slot timing extension value.

[0188] Optionally, the timing value is a time slot timing value.

[0189] It is understandable that in the embodiment of the present invention, when the computer program is executed by the processor 601, the above Figure 2The various processes of the embodiment of the control method of the hybrid automatic repeat request function shown in the figure can achieve the same technical effect, and will not be described again here to avoid repetition.

[0190] exist Figure 6 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 601 and various circuits of memory represented by memory 603 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 602 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 604 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0191] The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 can store data used by the processor 601 when performing operations.

[0192] It should be noted that the terminal in this embodiment is the same as the above Figure 2 The terminal corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the terminal, and can also achieve the same technical effect. In the terminal, the transceiver 602 and the memory 603, as well as the transceiver 602 and the processor 601 can be connected through the bus interface communication, the function of the processor 601 can also be implemented by the transceiver 602, and the function of the transceiver 602 can also be implemented by the processor 601. It should be noted that the above terminal provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effect, and the parts and beneficial effects that are the same as the method embodiment in this embodiment will not be specifically repeated here.

[0193] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a program is stored, and when the program is executed by a processor, the following steps are implemented:

[0194] Receive a first DCI sent by a network side device;

[0195] When the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, the HARQ feedback of the PDSCH transmission is stopped, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value.

[0196] When the program is executed by the processor, it can implement all the implementation methods in the above-mentioned control method of the hybrid automatic repeat request function applied to the terminal side, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0197] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0198] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0199] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0200] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0201] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0202] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0203] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A control method for a hybrid automatic repeat request function, characterized in that: include: When the network side device needs to turn off the hybrid automatic repeat request function HARQ function of the terminal, the network side device sends the first downlink control information DCI to the terminal, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value; The first value indicates that the terminal turns off the HARQ function or the second value indicates that the terminal turns off the HARQ function; The value of the HARQ feedback timing indication field is the first value; Before sending the first DCI to the terminal, the method further includes: The network side device configures a timing value sequence for the terminal, wherein the length I of the timing value sequence makes log2(I) a non-integer; or, The value of the HARQ feedback timing indication field is the second value; Before sending the first DCI to the terminal, the method further includes: The network side device sends a second RRC signaling to the terminal, the second RRC signaling carries a second high-layer parameter for configuring the timing value sequence, and the timing value sequence includes the timing extension value.

2. The method according to claim 1, characterized in that The network side device configures a timing value sequence for the terminal, specifically: the network side device sends a first wireless resource control RRC signaling to the terminal, wherein the first RRC signaling carries a first high-level parameter for configuring the timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter makes log2(I) a non-integer.

3. The method according to claim 2, characterized in that When the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary; or When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary; or When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary; or When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

4. The method according to claim 1, characterized in that The timing value sequence also includes: candidate values ​​of the time slot timing, wherein the value of the timing extension value is different from the candidate value of the time slot timing.

5. The method according to claim 4, characterized in that The timing extension value is located at a preset position in the timing value sequence; The second value is used to indicate the preset position in the timing extension value.

6. The method according to claim 1, characterized in that The timing value is a time slot timing value.

7. A control method for a hybrid automatic repeat request function, characterized in that: include: The terminal receives a first DCI sent by a network side device; When the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, the terminal stops the HARQ feedback of the PDSCH transmission, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value; The first value indicates that the terminal turns off the HARQ function or the second value indicates that the terminal turns off the HARQ function; The value of the HARQ feedback timing indication field is the first value; Before receiving the first DCI, the method further includes: The terminal receives a first RRC signaling sent by the network side device, where the first RRC signaling carries a first high-level parameter for configuring a timing value sequence, and a length I of the timing value sequence configured by the first high-level parameter is such that log2(I) is a non-integer; or, The value of the HARQ feedback timing indication field is the second value; Before receiving the first DCI, the method further includes: The terminal receives a second RRC signaling sent by a network-side device, the second RRC signaling carries a second high-layer parameter for configuring the timing value sequence, and the timing value sequence includes the timing extension value.

8. The method according to claim 7, characterized in that When the length of the timing value sequence configured by the first high-level parameter is 3, the first value is 11 in binary; or, When the length of the timing value sequence configured by the first high-level parameter is 5, the first value is 101, 110 or 111 in binary; or, When the length of the timing value sequence configured by the first high-level parameter is 6, the first value is 110 or 111 in binary; or, When the length of the timing value sequence configured by the first high-level parameter is 7, the first value is 111 in binary.

9. The method according to claim 7, characterized in that The timing value sequence also includes: candidate values ​​of the time slot timing, wherein the value of the timing extension value is different from the candidate value of the time slot timing.

10. The method according to claim 9, characterized in that The timing extension value is located at a preset position in the timing value sequence; The second value is used to indicate the preset position in the timing extension value.

11. The method according to claim 7, characterized in that The timing value is a time slot timing value.

12. A network side device, characterized in that: include: A sending module, configured to send first downlink control information DCI to the terminal when the HARQ function of the terminal needs to be turned off, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value; The first value indicates that the terminal turns off the HARQ function or the second value indicates that the terminal turns off the HARQ function; The value of the HARQ feedback timing indication field is the first value; A first configuration module is configured to configure a timing value sequence for the terminal before sending the first DCI to the terminal, wherein a length I of the timing value sequence makes log2(I) a non-integer; or The value of the HARQ feedback timing indication field is the second value; The second configuration module is used to send a second RRC signaling to the terminal before sending the first DCI to the terminal, the second RRC signaling carries a second high-level parameter for configuring the timing value sequence, and the timing value sequence includes the timing extension value.

13. A network side device, characterized in that: comprising a transceiver and a processor, wherein: The processor is used to determine whether it is necessary to disable the HARQ function of the terminal; The transceiver is used to send first downlink control information DCI to the terminal when the HARQ function of the terminal needs to be turned off, wherein the value of the HARQ feedback timing indication field of the physical downlink shared channel PDSCH transmission in the first DCI is a first value or a second value, the first value does not correspond to the timing value, and the second value corresponds to the timing extension value; The first value indicates that the terminal turns off the HARQ function or the second value indicates that the terminal turns off the HARQ function; The value of the HARQ feedback timing indication field is the first value; and the processor is further configured to: Before sending the first DCI to the terminal, configuring a timing value sequence for the terminal, wherein a length I of the timing value sequence makes log2(I) a non-integer; or, The value of the HARQ feedback timing indication field is the second value; and the processor is further configured to: Before sending the first DCI to the terminal, sending a second RRC signaling to the terminal, the second RRC signaling carries a second high-layer parameter for configuring the timing value sequence, and the timing value sequence includes the timing extension value.

14. A network side device, characterized in that: include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the steps of the method according to any one of claims 1 to 6 are implemented.

15. A terminal, characterized in that: include: A receiving module, configured to receive a first DCI sent by a network side device; A control module, configured to stop the HARQ feedback of the PDSCH transmission when the value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value; The first value indicates that the terminal turns off the HARQ function or the second value indicates that the terminal turns off the HARQ function; The value of the HARQ feedback timing indication field is the first value; the receiving module is further used to receive a first RRC signaling sent by the network side device, the first RRC signaling carries a first high-level parameter for configuring a timing value sequence, and the length I of the timing value sequence configured by the first high-level parameter is such that log2(I) is a non-integer; or, The value of the HARQ feedback timing indication field is the second value; the receiving module is also used to receive a second RRC signaling sent by a network side device, the second RRC signaling carries a second high-level parameter for configuring the timing value sequence, and the timing value sequence includes the timing extension value.

16. A terminal, characterized in that: comprising a transceiver and a processor, wherein: The transceiver is used to receive a first DCI sent by a network side device; The processor is configured to stop HARQ feedback of the PDSCH transmission when a value of the HARQ feedback timing indication field of the PDSCH transmission in the first DCI is a first value or a second value, wherein the first value does not correspond to the timing value, and the second value corresponds to the timing extension value; The first value indicates that the terminal turns off the HARQ function or the second value indicates that the terminal turns off the HARQ function; The value of the HARQ feedback timing indication field is the first value; and the processor is further configured to: Before receiving the first DCI, receiving a first RRC signaling sent by the network side device, wherein the first RRC signaling carries a first high-level parameter for configuring a timing value sequence, and a length I of the timing value sequence configured by the first high-level parameter is taken such that log2(I) is a non-integer; or, The value of the HARQ feedback timing indication field is the second value; and the processor is further configured to: Before receiving the first DCI, a second RRC signaling sent by a network side device is received, the second RRC signaling carries a second high-layer parameter for configuring the timing value sequence, and the timing value sequence includes the timing extension value.

17. A terminal, characterized in that: include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the steps of the method according to any one of claims 7 to 11 are implemented.

18. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 11 are implemented.

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