CN113676300B

CN113676300B - Feedback method and equipment for hybrid self-adaptive retransmission request response information

Info

Publication number: CN113676300B
Application number: CN202010412784.4A
Authority: CN
Inventors: 周明宇; 云翔
Original assignee: Baicells Technologies Co Ltd
Current assignee: Baicells Technologies Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2023-06-20
Anticipated expiration: 2040-05-15
Also published as: CN113676300A

Abstract

The invention provides a feedback method and equipment for hybrid self-adaptive retransmission request response information, which solve the problems of low peak throughput of a terminal, low system efficiency and performance of a physical downlink control channel. The method of the invention comprises the following steps: acquiring downlink control information transmitted through a physical downlink control channel; determining a target time unit according to a first field in downlink control information, wherein the target time unit is a time unit for hybrid self-adaptive retransmission request response feedback of a target PDSCH, and the first field is used for indicating the corresponding relation between HARQ-ACK feedback of the target PDSCH and the target PDSCH in time; and feeding back HARQ-ACK information of the target PDSCH in the target time unit. The invention can indicate HARQ-ACK feedback time, on one hand, can ensure the performance of a physical downlink control channel, on the other hand, can ensure the peak throughput of terminal equipment, and can improve the efficiency of a system.

Description

Feedback method and equipment for hybrid self-adaptive retransmission request response information

Technical Field

The present invention relates to the field of communications applications, and in particular, to a method and apparatus for feeding back hybrid adaptive retransmission request response information.

Background

With the rapid development of the mobile internet, the demands of people on surfing the internet at any time and any place are stronger, and a non-ground network and a New air interface (NR) system are mutually fused to construct an integrated comprehensive communication network which integrates the world and the earth, so that the ubiquitous multiple service demands of user equipment are met.

There are three formats for the physical downlink control channel (Physical Downlink Control Channe, PDCCH) of the existing scheduling physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) of the NR system: DCI format 1_0, DCI format1_1 and DCI format1_2. If the terminal device is configured with the higher layer signaling "dl-DataToUL-ACK" and the "dl-DataToUL-ACK" includes only a single value, a timing relationship between the detection time of the PDSCH and the feedback time of the HARQ-ACK is determined according to the value. If the terminal device is not configured with the higher layer signaling "dl-DataToUL-ACK" or the "dl-DataToUL-ACK" includes a plurality of values, determining a timing relationship between the detection time of the PDSCH and the feedback time of the HARQ-ACK according to the "PDSCH-to-HARQ-timing-indicator" field and the timing value candidate in the DCI. PDSCH scheduled for DCI format 1_0 with timing value alternatives {1,2,3,4,5,6,7,8}; for DCI format1_1 and DCI format1_2, the timing value alternatives are a plurality of values configured by "dl-DataToUL-ACK". The "dl-DataToUL-ACK" supports configuration of up to 8 values between 0 to 15, i.e., the time difference between the time cell in which the PDSCH is located and the time cell in which the HARQ-ACK is fed back is in the range of 0 to 15 slots or 0 to 15 sub-slots.

The coverage of a non-terrestrial network is wider than that of a terrestrial communication system. In a time division duplex (Time Division Duplex, TDD) system, due to longer propagation delay, a longer guard interval time needs to be reserved between uplink and downlink transmissions to avoid interference between uplink and downlink transmissions in the system. To ensure system transmission efficiency, frequent switching between uplink and downlink transmission needs to be reduced as much as possible, so that uplink and downlink configuration in a TDD system may use a longer ratio of continuous downlink or continuous uplink time units than in a terrestrial communication system. As illustrated in fig. 1, a configuration in which DL: GP: UL ratio is n+1:P-N: Q-P with Qms as a period is supported. Because the continuous downlink configuration time is long, the PDSCH data of a part of DL time slots is not used for HARQ-ACK feedback by the corresponding uplink resources in the range supported by the current higher layer signaling DL-DataToUL-ACK. As illustrated in fig. 1, if slots 0-M within Qms transmit PDSCH, the current range supported by "dl-DataToUL-ACK" cannot meet the indication of its HARQ-ACK feedback.

In this way, due to long continuous downlink configuration duration, part of DL time slots are not timely used for HARQ-ACK feedback by uplink resources corresponding to the DL time slots, so that transmission vacancies of part of time slots due to no parallel data transmission are caused, and peak throughput of terminal equipment and efficiency of a system are affected.

In addition, aiming at the improvement of the current land mobile communication NR system, the application scenes such as a non-ground communication network are supported, and a larger range of timing alternative options are added in the timing alternative value of dl-DataToUL-ACK so as to meet the time timing indication of HARQ-ACK feedback corresponding to PDSCH transmission. Accordingly, the length of the PDSCH-to-HARQ-timing-indicator field in the downlink control information (Downlink Control Information, DCI) format needs to be increased, which causes an increase in the load of the PDCCH and affects the performance of the PDCCH.

Disclosure of Invention

The invention aims to provide a feedback method and equipment for hybrid self-adaptive retransmission request response information, which are used for solving the problems of low peak throughput of a terminal, low system efficiency and performance of a physical downlink control channel in application scenes such as supporting non-ground networks and the like aiming at the improvement of the current land mobile communication NR system.

In order to achieve the above object, the present invention provides a feedback method of hybrid adaptive retransmission request response information, an application terminal, including:

acquiring downlink control information transmitted through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target Physical Downlink Shared Channel (PDSCH);

Determining a target time unit according to a first field in the downlink control information, wherein the target time unit is a time unit for hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target Physical Downlink Shared Channel (PDSCH), and the first field is used for indicating the corresponding relation between the HARQ-ACK feedback of the target PDSCH and the target PDSCH in time;

and feeding back the HARQ-ACK information of the target PDSCH in the target time unit.

In order to achieve the above object, an embodiment of the present invention further provides a feedback method of hybrid adaptive retransmission request response information, applied to a network device, including:

transmitting downlink control information through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target Physical Downlink Shared Channel (PDSCH), a first field of the downlink control information is used for indicating a corresponding relation between hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target PDSCH and the target PDSCH in time so that a terminal determines a target time unit according to the first field, and the target time unit is a time unit for HARQ-ACK feedback of the target PDSCH;

and receiving HARQ-ACK information of the target PDSCH in the target time unit.

In order to achieve the above object, an embodiment of the present invention further provides a terminal, including:

the system comprises an acquisition module, a scheduling module and a scheduling module, wherein the acquisition module acquires downlink control information transmitted through a physical downlink control channel, and the physical downlink control channel is used for scheduling a target physical downlink shared channel PDSCH;

the time determining module is used for determining a target time unit according to a first field in the downlink control information, wherein the target time unit is a time unit for hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target Physical Downlink Shared Channel (PDSCH), and the first field is used for indicating the corresponding relation in time between the HARQ-ACK feedback of the target PDSCH and the target PDSCH;

and the feedback module is used for feeding back the HARQ-ACK information of the target PDSCH in the target time unit.

To achieve the above object, an embodiment of the present invention further provides a terminal including a memory, a processor, and a computer program stored on the memory and executable on the processor; the step of the feedback method of the hybrid adaptive retransmission request response information is realized when the processor executes the program.

To achieve the above object, an embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the feedback method of hybrid adaptive repeat request response information as described above.

In order to achieve the above object, an embodiment of the present invention further provides a network device, including:

the system comprises a transmitting module, a receiving module and a receiving module, wherein the transmitting module is used for transmitting downlink control information through a physical downlink control channel, the physical downlink control channel is used for scheduling a target physical downlink shared channel PDSCH, a first field of the downlink control information is used for indicating the corresponding relation between hybrid self-adaptive retransmission request response HARQ-ACK feedback of a target PDSCH and the target PDSCH in time so that a terminal determines a target time unit according to the first field, and the target time unit is a time unit for HARQ-ACK feedback of the target PDSCH;

and the receiving module is used for receiving the HARQ-ACK information of the target PDSCH in the target time unit.

To achieve the above object, an embodiment of the present invention further provides a network device, including a memory, a processor, and a computer program stored on the memory and executable on the processor; the step of the feedback method of the hybrid adaptive retransmission request response information is realized when the processor executes the program.

In order to achieve the above object, a computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the feedback method of hybrid adaptive repeat request response information as described above.

The embodiment of the invention has the following beneficial effects:

according to the technical scheme, downlink control information transmitted through a physical downlink control channel is acquired, wherein the physical downlink control channel is used for scheduling a target Physical Downlink Shared Channel (PDSCH); determining a target time unit according to a first field in the downlink control information, wherein the target time unit is a time unit for hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target Physical Downlink Shared Channel (PDSCH), and the first field is used for indicating a corresponding relation in time between the HARQ-ACK feedback of the target PDSCH and the target PDSCH; and feeding back the HARQ-ACK information of the target PDSCH in the target time unit, so that the HARQ-ACK feedback time can be indicated in application scenes such as supporting non-ground networks and the like aiming at the improvement of the current land mobile communication NR system, on one hand, the performance of a physical downlink control channel can be ensured, on the other hand, the peak throughput of terminal equipment is ensured, and the efficiency of the system is improved.

Drawings

FIG. 1 is a diagram illustrating a conventional time slot allocation;

fig. 2 is a flow chart of a feedback method of hybrid adaptive repeat request response information according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of time structure configuration when a preset value of a first field in DCI indicates that the time of HARQ-ACK feedback is a preset time unit according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a time structure configuration when a first field in DCI according to an embodiment of the present invention includes a number of time unit sets between a time unit set where a target time unit is located and a time unit set where a time unit of a target PDSCH is located, and the time unit set is 4 slots long;

fig. 5 is a schematic diagram of a time structure configuration when a first field in DCI according to an embodiment of the present invention includes the number of time units between HARQ-ACK feedback time units of PDSCH and a reference time unit;

fig. 6 is a second flowchart of a feedback method of hybrid adaptive repeat request response information according to an embodiment of the present invention;

fig. 7 is a schematic block diagram of a terminal according to an embodiment of the present invention;

fig. 8 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic block diagram of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be made with reference to specific embodiments and accompanying drawings.

As shown in fig. 2, an embodiment of the present invention provides a feedback method of hybrid adaptive retransmission request response information, which is applied to a terminal and includes:

Step 201: acquiring downlink control information transmitted through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target Physical Downlink Shared Channel (PDSCH);

in this step, downlink control information (Downlink Control Information, DCI) is carried on a physical downlink control channel PDCCH. And the terminal determines the scheduling instruction of the PDSCH by receiving the PDCCH.

Step 202: determining a target time unit according to a first field in the downlink control information, wherein the target time unit is a time unit for hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target Physical Downlink Shared Channel (PDSCH), and the first field is used for indicating the corresponding relation between the HARQ-ACK feedback of the target PDSCH and the target PDSCH in time;

in this step, the target time unit for the target PDSCHHARQ-ACK feedback can be determined by the correspondence in time between the HARQ-ACK feedback of the target PDSCH indicated by the first field and the target PDSCH.

Step 203: and feeding back the HARQ-ACK information of the target PDSCH in the target time unit.

In this step, the target time unit is an uplink time unit.

The feedback method of the hybrid self-adaptive retransmission request response information acquires downlink control information transmitted through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target physical downlink shared channel PDSCH; determining a target time unit according to a first field in the downlink control information, wherein the target time unit is a time unit for hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target Physical Downlink Shared Channel (PDSCH), and the first field is used for indicating a corresponding relation in time between the HARQ-ACK feedback of the target PDSCH and the target PDSCH; and feeding back the HARQ-ACK information of the target PDSCH in the target time unit, so that the HARQ-ACK feedback time can be indicated in application scenes such as supporting non-ground networks and the like aiming at the improvement of the current land mobile communication NR system, on one hand, the performance of a physical downlink control channel can be ensured, on the other hand, the peak throughput of terminal equipment is ensured, and the efficiency of the system is improved.

Optionally, the first field contains one of the following information:

the target time unit is a preset time unit, the value of the corresponding first field is a first preset value, and the first preset value is used for representing that the time unit where the target PDSCH is located is a time unit in which the time unit of the high-layer signaling is configured in a range of values which does not support the time difference range between PDSCH and HARQ-ACK feedback;

it should be noted that the higher layer signaling may be "dl-DataToUL-ACK". Here, in the case where the time unit where the target PDSCH is located is a time unit where the configuration value range of the higher layer signaling does not support the time difference range between the PDSCH and the HARQ-ACK feedback, the HARQ-ACK information of the target PDSCH may be fed back through the preset time unit.

Optionally, the preset time unit is set according to a time slot or a sub-time slot where the target PDSCH is located, or according to a time domain resource allocation set of downlink and uplink.

Here, the reservation may be made according to the slot, symbol configuration conditions of the downlink DL and the uplink UL. For example, the preset time unit is the first time slot/sub-slot including the uplink symbol or the flexible symbol after the current DL slot, or the preset time unit is the j-th time slot/sub-slot including the uplink symbol or the flexible symbol after the current DL slot, where the value of j is preset.

It should be noted that there may be one or more preset time units.

In addition, for the case that the configuration value range of the higher layer signaling configured by the terminal can support the time difference range between PDSCH and HARQ-ACK feedback, the timing relationship between the detection time of PDSCH and the feedback time of HARQ-ACK is indicated through the "PDSCH-to-HARQ-timing-indicator" field in DCI within the "dl-DataToUL-ACK" configuration range.

As shown in fig. 3, in an example, the "PDSCH-to-HARQ-timing-indicator" in DCI is assumed to be the first field, which is 3 bits in length. In the case of a configuration in which the slot structure configuration period is Tms and the DL: GP: UL ratio is a+1:B-a: C-B, the first field value of each PDCCH for scheduling PDSCH in slots 0 to a may be a preset value, for example, "0 0", for indicating that HARQ-ACK corresponding to PDSCH is fed back in a preset time unit, that is, a preset uplink slot, for example, uplink UL slot b+3. The first field value of the PDCCH for each PDSCH in the scheduling slots a+1 to b+1 corresponds to each configuration value of the higher layer signaling "dl-DataToUL-ACK". For example, "0 0 1" is used to indicate the first configuration value in "dl-DataToUL-ACK"; "0 1" is used to indicate the second configuration value of "dl-DataToUL-ACK

The time of the HARQ-ACK feedback is indicated by the preset value of the first field in the DCI as a preset time unit, and the other values of the first field in the DCI indicate the time difference between the PDSCH and the HARQ-ACK, so that the problem that part of DL time slots are not timely and corresponding uplink resources are used for the HARQ-ACK feedback due to long continuous downlink configuration time can be solved.

The number of the time unit sets between the time unit set where the target time unit is located and the time unit set where the time unit of the target PDSCH is located, wherein the time unit set comprises N time units, N is greater than or equal to 2, and N is a positive integer;

here, the downlink time units are divided into time unit sets at a certain granularity. The size of the time unit set is preset or the network equipment is configured to the terminal through the configuration information.

In one example, as shown in fig. 4, the 1 time unit set includes 4 slot lengths. In this embodiment, the time granularity of the configuration value of the higher layer signaling "dl-DataToUL-ACK" is the length of the time unit set, that is, indicates how many time unit sets are located between the time unit set where the PDSCH is located and the time unit set where the time for HARQ-ACK feedback is located.

Based on this, that is, the first field includes the number of time unit sets between the time unit set where the target time unit is located and the time unit set where the time unit of the target PDSCH is located; step 202 of the embodiment of the present invention may specifically include:

determining a target time unit set in which the target time unit is located according to the first field;

here, continuing with fig. 4 as an example, assuming that the PDSCH is located in the first set, the first field in the DCI indicates that there is a time difference of n time unit sets between the first set and the HARQ-ACK feedback, that is, the time unit set in which the PDSCH is located and the time unit set in which the time for the HARQ-ACK feedback is located are different by 4n slots.

Here, knowing the set of time units in which the PDSCH is located, according to the number of time unit sets between the set of time units in which the target time unit indicated by the first field is located and the set of time units in which the time unit of the target PDSCH is located, where the number of time unit sets is n time unit sets, the set of time units in which the time unit of the target PDSCH is located can be determined.

And determining the position of the target time unit in the target time unit set according to a second preset rule.

In this step, after determining the time unit set in which the target time unit is located, the position of the target time unit in the time unit set may be determined according to a second preset rule. For example, PDSCH is located in the 2 nd time cell of the first set, and the target time cell is also located in the 2 nd time cell of the set of time cells in which it is located.

The problem that when the first field indicates the number of time units between the time units fed back by the HARQ-ACK and the time units of the PDSCH, part of DL time slots are not timely and corresponding uplink resources are not used for the HARQ-ACK feedback due to long continuous downlink configuration time can be avoided.

The number of time units between the target time unit and a reference time unit, the reference time unit being determined by a first preset rule.

Here, the reference time unit is determined by a first preset rule, for example, the reference time unit is adjacent to a first slot/sub-slot including an uplink symbol or a flexible symbol after the current DL slot.

As an optional implementation manner, in a case that the first preset condition is satisfied, the first field includes a number of time units between the target time unit and the reference time unit;

The first preset condition is as follows: and the time unit where the target PDSCH is positioned is a time unit of which the configuration value range of the high-layer signaling does not support the time difference range between the PDSCH and the HARQ-ACK feedback.

Optionally, the configuration value of DL-DataToUL-ACK is used to indicate the number of time units between the reference time unit and the target time unit, so that the problem that part of DL time slots have no timely uplink resources corresponding to the DL time slots for HARQ-ACK feedback due to long continuous downlink configuration duration, that is, the problem that the configuration value range of high-layer signaling does not support the time difference range between PDSCH and HARQ-ACK feedback, can be solved.

As an optional implementation manner, in a case that the second preset condition is met, the first field includes a number of time units between a target time unit and a time unit where the target PDSCH is located;

the second preset condition is one of the following conditions:

the value of the first field is other values except a second preset value, and the second preset value is used for representing that a time unit where the target PDSCH is located is a time unit where the configuration value range of the high-layer signaling does not support the time difference range between PDSCH and HARQ-ACK feedback;

Here, in this case, the value of the first field is other than the second preset value, which indicates that the configuration value range of the higher layer signaling supports the time difference range between PDSCH and HARQ-ACK feedback.

And the time unit where the target PDSCH is positioned is a time unit in which the time difference range between the PDSCH and the HARQ-ACK feedback is supported by the configuration value range of the high-layer signaling.

The following describes the implementation procedure of the feedback method of the terminal-side hybrid adaptive retransmission request response information in detail with respect to the following four embodiments.

Example 1

Step A1: receiving a PDCCH, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI;

step A2: determining a target time unit according to a first field in DCI;

it should be noted that, the value of the first field is a preset value, the preset value may be a plurality of preset values, the plurality of preset values form a first set, and if the value of the first field belongs to the first set, the target time unit is a preset time unit; if the first field value belongs to the second set, the time difference between the target time unit and the time unit where the PDSCH is located is determined by the first field value.

Here, the second set is a set other than the first set.

Step A3: and feeding back the HARQ-ACK of the target PDSCH in the target time unit.

Example two

Step B1, receiving a PDCCH, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI;

step B2, determining a time unit set where a target time unit is located according to a first field in DCI, wherein the first field contains the number of the time unit sets between the time unit set where the time unit of PDSCH is located and the time unit set where the time unit of HARQ-ACK feedback is located, the time unit set comprises N time units, N is greater than or equal to 2, and N is a positive integer;

step B3, determining the position of the target time unit in the time unit set where the target time unit is located;

here, after determining the time unit set in which the target time unit is located, the position of the target time unit in the time unit set may be determined according to a preset rule.

And step B4, feeding back the HARQ-ACK of the target PDSCH in the target time unit.

Example III

Step C1, receiving a PDCCH, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI;

step C2, determining a time unit in which a target time unit is located according to a first field in DCI, wherein the first field contains the number of time units between the time unit fed back by HARQ-ACK and a reference time unit;

and step C3, feeding back the HARQ-ACK of the target PDSCH in the target time unit.

Example IV

Step D1, receiving a PDCCH, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI;

step D2, determining a target time unit according to a first field in DCI, wherein the first field contains the number of time units between the time units fed back by HARQ-ACK and a reference time unit for PDSCH in the first set; for PDSCH in the second set, the first field contains the number of time units between the target time unit and the time unit in which PDSCH is located.

Here, the reference time unit may be determined according to a preset rule. For example, a configuration value range where the reference time cell is "dl-DataToUL-ACK" may support the first slot of the time difference range between PDSCH and HARQ-ACK feedback.

PDSCH in the first set is PDSCH in which the configuration value range of "dl-DataToUL-ACK" does not support the time difference range between PDSCH and HARQ-ACK feedback; the PDSCH in the second set is PDSCH in which the range of configuration values of "dl-DataToUL-ACK" may support the range of time differences between PDSCH and HARQ-ACK feedback.

In an example, as shown in fig. 5, for DCI of PDSCH in slots 0 to a, the first field thereof indicates which of the configuration values of "dl-DataToUL-ACK" the number of time units between HARQ-ACK feedback time units of PDSCH and the reference time unit (slot a). For DCI for PDSCH in slots a+1 to b+1, the first field thereof indicates which of the configuration values of "dl-DataToUL-ACK" the number of time units between the HARQ-ACK feedback time unit of PDSCH and the time unit of PDSCH is. Thus, the problem that the uplink resources corresponding to the partial DL time slots are not timely used for HARQ-ACK feedback due to long continuous downlink configuration time can be solved.

And step D3, feeding back the HARQ-ACK of the target PDSCH in the target time unit.

As shown in fig. 6, the embodiment of the present invention further provides a feedback method of hybrid adaptive retransmission request response information, applied to a network device, where the method corresponds to a feedback method of hybrid adaptive retransmission request response information at a terminal side, and includes:

Step 601: transmitting downlink control information through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target Physical Downlink Shared Channel (PDSCH), a first field of the downlink control information is used for indicating a corresponding relation between hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target PDSCH and the target PDSCH in time so that a terminal determines a target time unit according to the first field, and the target time unit is a time unit for HARQ-ACK feedback of the target PDSCH;

step 602: and receiving HARQ-ACK information of the target PDSCH in the target time unit.

According to the feedback method of the hybrid self-adaptive retransmission request response information, downlink control information is sent through a physical downlink control channel, the physical downlink control channel is used for scheduling a target Physical Downlink Shared Channel (PDSCH), a first field of the downlink control information is used for indicating the corresponding relation between hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target PDSCH and the target PDSCH in time, so that a terminal determines a target time unit according to the first field, wherein the target time unit is a time unit for HARQ-ACK feedback of the target PDSCH; and receiving the HARQ-ACK information of the target PDSCH in the target time unit, so that the HARQ-ACK of the target PDSCH can be received at the indicated HARQ-ACK feedback time in the application scene of supporting non-ground networks and the like in the improvement of the current land mobile communication NR system, the performance of a physical downlink control channel is ensured, the peak throughput of terminal equipment is ensured, and the efficiency of the system is improved.

Optionally, the first field contains one of the following information:

here, the higher layer signaling may be "dl-DataToUL-ACK".

It should be noted that there may be one or more preset time units.

Here, in the case that the first field includes the number of time unit sets between the time unit set where the target time unit is located and the time unit set where the time unit of the target PDSCH is located, before step 602, the method of the embodiment of the present invention may further include:

and determining the position of the target time unit in the target time unit set where the target time unit is according to a second preset rule.

Here, the position of the target time unit within the set of target time units may be determined according to a second preset rule. For example, PDSCH is located in the 2 nd time cell of the first set, and the target time cell is also located in the 2 nd time cell of the set of time cells in which it is located.

the second preset condition is one of the following conditions:

The following describes the specific implementation procedure of the feedback method of the hybrid adaptive retransmission request response information of the network device side in detail, corresponding to the four embodiments of the feedback method of the hybrid adaptive retransmission request response information of the terminal side.

Example five

Step A11, a PDCCH is sent, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI, and if a time unit of the PDSCH is the PDSCH in a time difference range between the PDSCH and HARQ-ACK feedback which is not supported by a configuration value range of a high-layer signaling, a first field value of the DCI is a preset value, and the target time unit is indicated to be the preset time unit; if the time unit of the PDSCH is the PDSCH in the time difference range between the PDSCH and the HARQ-ACK feedback supported by the configuration value range of the higher layer signaling, the value of the first field of the DCI is other than the preset value, indicating the time difference between the target time unit and the time unit where the PDSCH is located.

Step A12, the HARQ-ACK of the target PDSCH is received in the target time unit.

Example six

Step B11, transmitting PDCCH, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI, a first field of the DCI comprises the number of time unit sets between a time unit set where a time unit of the PDSCH is located and a time unit set where a time unit of HARQ-ACK feedback is located, the time unit set comprises N time units, N is greater than or equal to 2, and N is a positive integer;

step B12, determining the position of the target time unit in the time unit set where the target time unit is located according to a preset rule;

and step B13, receiving the HARQ-ACK of the target PDSCH in the target time unit.

Example seven

Step C11, a PDCCH is sent, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI, a first field of the DCI indicates a time unit where a target time unit is located, and the first field contains the number of time units between the time unit fed back by the HARQ-ACK and a reference time unit;

step C12, the HARQ-ACK of the target PDSCH is received in the target time unit.

Example eight

Step D11, transmitting a PDCCH, wherein the PDCCH is used for scheduling a target PDSCH and carries DCI, a first field of the DCI indicates a time unit in which a target time unit is located, and for the PDSCH in a first set, the first field contains the number of time units between the time unit fed back by the HARQ-ACK and a reference time unit; for PDSCH in the second set, the first field contains the number of time units between the target time unit and the time unit in which the PDSCH is located.

Here, the PDSCH in the first set is a PDSCH whose configuration value range of "dl-DataToUL-ACK" does not support the time difference range between PDSCH and HARQ-ACK feedback; the PDSCH in the second set is PDSCH in which the range of configuration values of "dl-DataToUL-ACK" may support the range of time differences between PDSCH and HARQ-ACK feedback.

Step D12, the HARQ-ACK of the target PDSCH is received in the target time unit.

As shown in fig. 7, an embodiment of the present invention further provides a terminal, including:

the method comprises the steps of obtaining 701 downlink control information transmitted through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target physical downlink shared channel PDSCH;

a time determining module 702, configured to determine a target time unit according to a first field in the downlink control information, where the target time unit is a time unit for hybrid adaptive retransmission request acknowledgement HARQ-ACK feedback of a target PDSCH, and the first field is used to indicate a correspondence in time between HARQ-ACK feedback of the target PDSCH and the target PDSCH;

a feedback module 703, configured to feed back HARQ-ACK information of the target PDSCH in the target time unit.

Optionally, the first field contains one of the following information:

Optionally, the first field includes a number of time unit sets between a time unit set in which a target time unit is located and a time unit set in which a time unit of the target PDSCH is located;

accordingly, the time determination module 702 includes:

a first time determining submodule, configured to determine, according to the first field, a target time unit set in which the target time unit is located;

and the second time determining submodule determines the position of the target time unit in the target time unit set according to a second preset rule.

Optionally, in the case that the first preset condition is satisfied, the first field includes a number of time units between the target time unit and the reference time unit;

Optionally, if the second preset condition is met, the first field includes the number of time units between a target time unit and a time unit where the target PDSCH is located;

the second preset condition is one of the following conditions:

The terminal of the embodiment of the invention, an acquisition module acquires downlink control information transmitted through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target physical downlink shared channel PDSCH; the time determining module determines a target time unit according to a first field in the downlink control information, wherein the target time unit is a time unit for hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target Physical Downlink Shared Channel (PDSCH), and the first field is used for indicating a corresponding relation between the HARQ-ACK feedback of the target PDSCH and the target PDSCH in time; the feedback module feeds back the HARQ-ACK information of the target PDSCH in the target time unit, so that the HARQ-ACK feedback time can be indicated in application scenes such as supporting non-ground networks and the like in the improvement of the current land mobile communication NR system, on one hand, the performance of a physical downlink control channel can be ensured, on the other hand, the peak throughput of terminal equipment is ensured, and the efficiency of the system is improved

It should be noted that, the terminal according to the embodiment of the present invention can implement the steps in the method embodiment applied to the terminal, and can achieve the same technical effects.

The UE in the embodiments of the present invention may be a mobile phone (or a handset), or other devices capable of sending or receiving wireless signals, including a user equipment (terminal), a PDA, a wireless modem, a wireless communication device, a handheld device, a laptop, a cordless phone, a Wireless Local Loop (WLL) station, a CPE or Mifi capable of converting a mobile signal into a wifi signal, a smart home appliance, or other devices capable of spontaneously communicating with a mobile communication network without manipulation by a person, and the like.

In some embodiments of the present invention, there is also provided a terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the processor implements each process of the above embodiment of the feedback method of the hybrid adaptive retransmission request response information applied to the terminal when executing the program, and can achieve the same effect, so that repetition is avoided, and no description is repeated here.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements each process of the above-mentioned feedback method embodiment of hybrid adaptive repeat request response information, and can achieve the same effect, and in order to avoid repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

Preferably, referring to fig. 8, an embodiment of the present invention further provides a terminal, including:

a transceiver 801, configured to obtain downlink control information transmitted through a physical downlink control channel, where the physical downlink control channel is used to schedule a target physical downlink shared channel PDSCH;

a processor 802, configured to determine a target time unit according to a first field in the downlink control information, where the target time unit is a time unit for hybrid adaptive retransmission request acknowledgement HARQ-ACK feedback of a target PDSCH, and the first field is used to indicate a correspondence in time between HARQ-ACK feedback of the target PDSCH and the target PDSCH;

the transceiver 801 is further configured to feed back HARQ-ACK information of the target PDSCH in the target time unit.

The processor 802 of the embodiment of the present invention may be configured to implement the functions implemented by all the modules in the above-described terminal embodiment, and achieve the same technical effects as those achieved by the above-described terminal embodiment.

As shown in fig. 9, an embodiment of the present invention further provides a base station, including:

a sending module 901, configured to send downlink control information through a physical downlink control channel, where the physical downlink control channel is used to schedule a target physical downlink shared channel PDSCH, and a first field of the downlink control information is used to indicate a correspondence between a hybrid adaptive retransmission request acknowledgement HARQ-ACK feedback of a target PDSCH and time of the target PDSCH, so that a terminal determines a target time unit according to the first field, where the target time unit is a time unit for HARQ-ACK feedback of the target PDSCH;

A receiving module 902, configured to receive HARQ-ACK information of the target PDSCH in the target time unit.

Optionally, the first field contains one of the following information:

Optionally, the network device of the embodiment of the present invention may further include:

the processing module is configured to determine, when the first field includes a number of time unit sets between a time unit set where a target time unit is located and a time unit set where a time unit of the target PDSCH is located, a position of the target time unit in the target time unit set where the target time unit is located according to a second preset rule before the target time unit receives HARQ-ACK information of the target PDSCH.

the second preset condition is one of the following conditions:

The network device in the embodiment of the invention, the sending module sends downlink control information through a physical downlink control channel, wherein the physical downlink control channel is used for scheduling a target physical downlink shared channel PDSCH, a first field of the downlink control information is used for indicating a corresponding relation between hybrid self-adaptive retransmission request response (HARQ-ACK) feedback of a target PDSCH and time of the target PDSCH, so that a terminal determines a target time unit according to the first field, and the target time unit is a time unit for HARQ-ACK feedback of the target PDSCH; the receiving module receives the HARQ-ACK information of the target PDSCH in the target time unit, so that in the application scene of supporting non-ground network and the like aiming at the improvement of the current land mobile communication NR system, the receiving module can receive the HARQ-ACK of the target PDSCH at the indicated HARQ-ACK feedback time, ensure the performance of a physical downlink control channel, and is beneficial to ensuring the peak throughput of terminal equipment and improving the efficiency of the system.

It should be noted that, the network device in the embodiment of the present invention can implement the steps in the method embodiment applied to the network device, and can achieve the same technical effects.

In some embodiments of the present invention, there is also provided a network device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements each process of the embodiment of the feedback method of the hybrid adaptive retransmission request response information applied to the network device when executing the program, and can achieve the same technical effect, so that repetition is avoided, and no description is repeated here.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements each process of the above-mentioned feedback method embodiment of hybrid adaptive repeat request response information, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

Preferably, the embodiment of the present invention further provides a network device, including:

a transceiver, configured to send downlink control information through a physical downlink control channel, where the physical downlink control channel is used to schedule a target physical downlink shared channel PDSCH, and a first field of the downlink control information is used to indicate a correspondence between a hybrid adaptive retransmission request acknowledgement HARQ-ACK feedback of a target PDSCH and the target PDSCH in time, so that a terminal determines a target time unit according to the first field, where the target time unit is a time unit for HARQ-ACK feedback of the target PDSCH;

and the transceiver is further used for receiving the HARQ-ACK information of the target PDSCH in the target time unit.

The processor may also be configured to implement the functions implemented by all the modules in the above-described network device embodiment, and achieve the same technical effects as those achieved by the above-described network device embodiment.

In various embodiments of the present invention, it should be understood that the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

A1. The feedback method of the hybrid self-adaptive retransmission request response information is applied to a terminal and is characterized by comprising the following steps:

A2. The method of claim A1, wherein the first field contains one of the following information:

A3. The method of claim A2, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

A4. The method of claim A2, wherein the first field comprises a number of sets of time units between a set of time units in which a target time unit is located and a set of time units in which a time unit of the target PDSCH is located;

the determining the target time unit according to the first field in the downlink control information includes:

A5. A method as claimed in claim A1 or A2, characterized in that,

the first field comprises the number of time units between the target time unit and the reference time unit under the condition that a first preset condition is met;

A6. The method of claim A1, wherein the step of,

under the condition that a second preset condition is met, the first field comprises the number of time units between a target time unit and the time unit where the target PDSCH is located;

the second preset condition is one of the following conditions:

B7. A feedback method of hybrid adaptive retransmission request response information, applied to a network device, comprising:

and receiving HARQ-ACK information of the target PDSCH in the target time unit.

B8. The method of claim B7, wherein the first field contains one of the following information:

B9. The method of claim B8, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

B10. The method of claim B8, wherein, in the case where the first field contains a number of time unit sets between a set of time units in which a target time unit is located and a set of time units in which a time unit of the target PDSCH is located, before the target time unit receives HARQ-ACK information for the target PDSCH, the method further comprises:

B11. The method according to claim B7 or B8, wherein,

B12. The method of claim B7, wherein the step of,

the second preset condition is one of the following conditions:

C13. A terminal, comprising:

C14. The terminal of claim C13, wherein the first field contains one of the following information:

C15. The terminal of claim C14, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

C16. The terminal of claim C14, wherein the first field includes a number of sets of time units between a set of time units in which a target time unit is located and a set of time units in which a time unit of the target PDSCH is located;

the time determination module includes:

C17. The terminal according to claim C13 or C14, wherein the first field contains the number of time units between a target time unit and a reference time unit if a first preset condition is met;

C18. The terminal of claim C13, wherein the terminal comprises a base station,

The second preset condition is one of the following conditions:

D19. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the method according to any one of claims A1-A6, characterized in that the processor, when executing the program, implements the step of the feedback method of hybrid adaptive repeat request response information.

E20. A computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the hybrid adaptive repeat request acknowledgement information feedback method according to any of the claims A1-A6.

F21. A network device, comprising:

F22. The network device of claim F21, wherein the first field contains one of the following information:

F23. The network device of claim F21, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

F24. The network device of claim F21, wherein the network device further comprises:

F25. The network device of claim F21 or F22,

F26. The network device of claim F21,

The second preset condition is one of the following conditions:

G27. A network device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the method according to any one of claims B7-B12, characterized in that the processor, when executing the program, implements the steps of the method for feeding back hybrid adaptive repeat request response information.

H28. A computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the feedback method of hybrid adaptive repeat request acknowledgement information according to any of the claims B7-B12.

Claims

1. The feedback method of the hybrid self-adaptive retransmission request response information is applied to a terminal and is characterized by comprising the following steps:

feeding back HARQ-ACK information of the target PDSCH in the target time unit;

the first field contains one of the following information:

2. The method of claim 1, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

3. The method of claim 1, wherein the first field comprises a number of sets of time cells between a set of time cells in which a target time cell is located and a set of time cells in which a time cell of the target PDSCH is located;

4. The method of claim 1, wherein the step of determining the position of the substrate comprises,

5. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the second preset condition is one of the following conditions:

6. A feedback method of hybrid adaptive retransmission request response information, applied to a network device, comprising:

Receiving HARQ-ACK information of the target PDSCH in the target time unit;

the first field contains one of the following information:

7. The method of claim 6, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

8. The method of claim 6, wherein, in the case where the first field contains a number of time unit sets between a set of time units in which a target time unit is located and a set of time units in which a time unit of the target PDSCH is located, before the target time unit receives HARQ-ACK information for the target PDSCH, the method further comprises:

9. The method of claim 6, wherein the step of providing the first layer comprises,

10. The method of claim 6, wherein the step of providing the first layer comprises,

the second preset condition is one of the following conditions:

11. A terminal, comprising:

a feedback module, configured to feedback HARQ-ACK information of the target PDSCH in the target time unit;

the first field contains one of the following information:

12. The terminal of claim 11, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

13. The terminal of claim 11, wherein the first field comprises a number of sets of time cells between a set of time cells in which a target time cell is located and a set of time cells in which a time cell of the target PDSCH is located;

the time determination module includes:

14. The terminal according to claim 11, wherein the first field contains a number of time units between a target time unit and a reference time unit if a first preset condition is satisfied;

15. The terminal of claim 11, wherein the terminal comprises a base station,

the second preset condition is one of the following conditions:

16. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the method according to any one of claims 1-5, characterized in that the processor, when executing the program, implements the steps of the feedback method of hybrid adaptive repeat request response information.

17. A computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the hybrid adaptive repeat request acknowledgement information feedback method according to any of claims 1-5.

18. A network device, comprising:

a receiving module, configured to receive HARQ-ACK information of the target PDSCH in the target time unit;

the first field contains one of the following information:

19. The network device of claim 18, wherein the preset time unit is defined by a time slot or a sub-time slot defined by a time slot in which the target PDSCH is located, or by a time domain resource allocation defined by a downlink and an uplink.

20. The network device of claim 18, wherein the network device further comprises:

21. The network device of claim 18, wherein the network device,

22. The network device of claim 18, wherein the network device,

the second preset condition is one of the following conditions:

23. A network device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the method according to any of claims 6-10, characterized in that the processor, when executing the program, implements the steps of the method for feeding back hybrid adaptive repeat request response information.

24. A computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the feedback method of hybrid adaptive repeat request acknowledgement information according to any of claims 6-10.