CN113676300A

CN113676300A - Feedback method and device for hybrid self-adaptive retransmission request response information

Info

Publication number: CN113676300A
Application number: CN202010412784.4A
Authority: CN
Inventors: 周明宇; 云翔
Original assignee: Baicells Technologies Co Ltd
Current assignee: Beijing Baicai Xinzhan Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-11-19
Anticipated expiration: 2040-05-15
Also published as: CN113676300B

Abstract

The invention provides a feedback method and equipment of 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 the downlink control information, wherein the target time unit is a time unit for hybrid adaptive retransmission request response feedback of a target PDSCH, and the first field is used for indicating a corresponding relation between 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. The method and the device can indicate the HARQ-ACK feedback time, ensure the performance of the physical downlink control channel on one hand, ensure the peak throughput of the terminal equipment on the other hand, and improve the efficiency of the system.

Description

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

Technical Field

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

Background

With the rapid development of the mobile internet, people have stronger and stronger requirements for surfing the internet anytime and anywhere, and a non-terrestrial network and a New Radio (NR) system are mutually fused to construct a comprehensive communication network integrated with the world, so that the ubiquitous multi-service requirements of user equipment are met.

The Physical Downlink Control Channel (PDCCH) of the conventional scheduling Physical Downlink Shared Channel (PDSCH) of the NR system has three formats: DCI format1_ 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. And if the terminal equipment is not configured with the higher layer signaling 'dl-DataToUL-ACK' or the 'dl-DataToUL-ACK' comprises a plurality of values, determining the timing relation 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 option in the DCI. For the PDSCH scheduled by the DCI format1_ 0, timing value alternatives are {1,2,3,4,5,6,7 and 8 }; for DCI format1_1 and DCI format1_2, the timing value is an alternative of a plurality of values configured for "dl-DataToUL-ACK". The 'dl-DataToUL-ACK' supports configuration of at most 8 values between 0 and 15, namely, the time difference between the time unit of the PDSCH and the time unit of HARQ-ACK feedback is in the range of 0 to 15 time slots or 0 to 15 sub-time slots.

The non-terrestrial network has a wider coverage area than a terrestrial communication system. In a Time Division Duplex (TDD) system, due to a 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. In order to ensure the transmission efficiency of the system, it is necessary to minimize the frequent switching between uplink and downlink transmissions, so that the uplink and downlink configuration in the TDD system may use a longer ratio of consecutive downlink or consecutive uplink time units than in the terrestrial communication system. As shown in FIG. 1 for example, a configuration with a ratio of DL to GP to UL of N +1 to P-N to Q-P in a period of Qms is supported. Due to the long duration of the continuous downlink configuration, in the range supported by the current higher layer signaling "DL-DataToUL-ACK", there is no uplink resource corresponding to the PDSCH data of a part of DL slots for HARQ-ACK feedback. As illustrated in fig. 1, if PDSCH is transmitted in slots 0-M within Qms, the range currently supported by "dl-DataToUL-ACK" cannot satisfy its indication of HARQ-ACK feedback.

Thus, due to the long duration of the continuous downlink configuration, part of DL timeslots is not used for HARQ-ACK feedback in time and corresponding uplink resources are not used for HARQ-ACK feedback, so that transmission gaps are caused due to the fact that there is no parallel data transmission in part of the time slots, and the peak throughput of the terminal device and the efficiency of the system are affected.

In addition, aiming at the current improvement of a land mobile communication NR system and supporting application scenes such as a non-ground communication network and the like, timing alternatives in a larger range need to be added in a timing alternative value of 'dl-DataToUL-ACK' 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 (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 of 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 physical downlink control channel performance in application scenes such as the improvement of a current land mobile communication (NR) system and the support of a non-ground network.

In order to achieve the above object, the present invention provides a feedback method for 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 adaptive repeat request acknowledgement (HARQ-ACK) feedback of a target 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;

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 for hybrid adaptive retransmission request response information, which is applied to a network device, and includes:

sending 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 the time correspondence between hybrid adaptive repeat request acknowledgement (HARQ-ACK) feedback of the target PDSCH and 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;

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 processing module, wherein the acquisition module is used for acquiring 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);

a time determining module, 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 repeat request acknowledgement HARQ-ACK feedback of a target PDSCH, and the first field is used to indicate a temporal correspondence between HARQ-ACK feedback of the target PDSCH and the target PDSCH;

a feedback module, configured to feed back 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 a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor implements the steps of the hybrid adaptive retransmission request acknowledgement information feedback method described above when executing the program.

In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the feedback method of hybrid adaptive retransmission request acknowledgement information as described above.

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

a sending module, 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 temporal correspondence between hybrid adaptive repeat request acknowledgement HARQ-ACK feedback of the target PDSCH and 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, configured to receive 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 network device, including a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor implements the steps of the hybrid adaptive retransmission request acknowledgement information feedback method described above when executing 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 retransmission request acknowledgement information as described above.

The embodiment of the invention has the following beneficial effects:

according to the technical scheme of the embodiment of the invention, 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 adaptive repeat request acknowledgement (HARQ-ACK) feedback of a target 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; 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 improvement of a current land mobile communication (NR) system and support of a non-ground network, 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 schematic diagram of a conventional timeslot allocation scheme;

fig. 2 is a flowchart illustrating a feedback method of hybrid adaptive retransmission request response information according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a time structure configuration when a preset value of a first field in DCI indicates that HARQ-ACK feedback time 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 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 a target PDSCH is located, and the time unit sets have a length of 4 slots according to an embodiment of the present invention;

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

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

fig. 7 is a 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 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 of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings.

As shown in fig. 2, an embodiment of the present invention provides a feedback method for 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 (DCI) is carried on a PDCCH. The terminal determines a scheduling indication 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 adaptive repeat request acknowledgement (HARQ-ACK) feedback of a target 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;

in this step, the target time unit for the target PDSCHHARQ-ACK feedback can be determined by the temporal correspondence 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 of the embodiment of the invention obtains the downlink control information transmitted by 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 adaptive repeat request acknowledgement (HARQ-ACK) feedback of a target 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; 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 improvement of a current land mobile communication (NR) system and support of a non-ground network, 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 of which the configuration value range of the high-level signaling 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, when the time unit in which the target PDSCH is located is a time unit in the time difference range between the PDSCH and HARQ-ACK feedback, which is not supported by the configured value range of the higher layer signaling, the HARQ-ACK information of the target PDSCH may be fed back by a preset time unit.

Optionally, the preset time unit is agreed by a time slot or a sub-time slot where the target PDSCH is located, or is agreed by time domain resource configuration of a downlink and an uplink.

Here, the allocation may be predetermined according to the slot and symbol configuration of the downlink DL and the uplink UL. For example, the preset time unit is a first time slot/sub-time slot after the current DL time slot, which includes an uplink symbol or a flexible symbol, or the preset time unit is a jth time slot/sub-time slot after the current DL time slot, which includes an uplink symbol or a flexible symbol, and 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 the PDSCH and the HARQ-ACK feedback, the timing relationship between the detection time of the PDSCH and the feedback time of the HARQ-ACK is indicated by the "PDSCH-to-HARQ-timing-indicator" field in the DCI within the range of the "dl-DataToUL-ACK" configuration.

As shown in fig. 3, in an example, the "PDSCH-to-HARQ-timing-indicator" in DCI is assumed to be the first field, 3 bits in length. Under the condition that the configuration period of the time slot structure is Tms and the ratio of DL to GP to UL is a +1: B-a: C-B, the value of the first field of each PDCCH used for scheduling PDSCH in time slots 0-A can be a preset value, such as '000', and the value is used for indicating the HARQ-ACK corresponding to the PDSCH to be fed back in a preset time unit, namely a preset uplink time slot, such as an uplink UL time slot B + 3. The first field value of the PDCCH for scheduling each PDSCH in time slots a +1 to B +1 corresponds to each configuration value of the high layer signaling dl-DataToUL-ACK. For example, "001" is used to indicate the first configuration value in "dl-DataToUL-ACK"; "010" is used to indicate the second configuration value of "dl-DataToUL-ACK

The time for HARQ-ACK feedback is indicated to be a preset time unit through the preset value of the first field in the DCI, and 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 due to long continuous downlink configuration time and corresponding uplink resources are used for HARQ-ACK feedback can be solved.

The number of time unit sets between a time unit set of a target time unit and a time unit set of a time unit of the target PDSCH, 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 according to a certain granularity. The size of the time unit set is preset or the network device is configured to the terminal through the configuration information.

In one example, as shown in fig. 4, a set of 1 time unit includes a length of 4 slots. The configuration value range of the existing higher layer signaling "dl-DataToUL-ACK" takes a time slot as granularity, and because there is a case that a time difference range between PDSCH and HARQ-ACK feedback cannot be supported, in this embodiment, the time granularity of the configuration value of the higher layer signaling "dl-DataToUL-ACK" is the length of a time unit set, that is, how many time unit sets exist between a time unit set in which PDSCH is located and a time unit set in which time for HARQ-ACK feedback is located.

Based on this, that is, the first field includes the time unit set number between the time unit set of the target time unit and the time unit set of the target PDSCH; 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 the example of fig. 4, 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, there is a difference of 4n slots between the time unit set where the PDSCH is located and the time unit set where the time for the HARQ-ACK feedback is located.

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

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

The number of the time unit sets between the time unit set of the time unit of the HARQ-ACK feedback and the time unit set of the PDSCH is indicated by the first field in the DCI, so that the problem that when the number of the time units between the time unit of the HARQ-ACK feedback and the time unit of the PDSCH is indicated by the first field, part of DL time slots are not timely due to long continuous downlink configuration time and corresponding uplink resources are not used for HARQ-ACK feedback can be solved.

A 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 a first preset condition is satisfied, the first field includes a time unit number 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 located is a time unit of which the configuration value range of the high-level signaling does not support the time difference range between PDSCH and 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 as to solve the problem that part of DL timeslots is not timely due to a long duration of continuous downlink configuration, and uplink resources corresponding to the DL timeslots are not used for HARQ-ACK feedback, that is, the configuration value range of the higher layer signaling does not support the time difference range between the PDSCH and HARQ-ACK feedback.

As an optional implementation manner, when a second preset condition is met, the first field includes a number of time units between a target time unit and a time unit in which 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 the time unit where the target PDSCH is located is a time unit of which the configuration value range of the high-level 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 the PDSCH and the HARQ-ACK feedback.

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

The following four embodiments specifically describe the implementation process of the feedback method for hybrid adaptive retransmission request acknowledgement information on the terminal side.

Example one

Step A1: receiving a PDCCH (physical Downlink control channel) which is used for scheduling a target PDSCH and carries DCI (downlink control information);

step A2: determining a target time unit according to a first field in the 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 in which 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 the DCI, wherein the first field contains the number of time unit sets between the time unit set where the time unit of the PDSCH is located and the time unit set where the time unit of the 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;

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 the time unit where the target time unit is located according to a first field in the DCI, wherein the first field contains the time unit number between the time unit fed back by the HARQ-ACK and the reference time unit;

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

Example four

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 the DCI, wherein for the PDSCH in the first set, the first field contains the time unit number between the time unit fed back by the HARQ-ACK and the reference time unit; for the 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 reference time unit may be determined according to a preset rule. For example, a configuration value range where the reference time unit is "dl-DataToUL-ACK" may support the first slot of the time difference range between PDSCH and HARQ-ACK feedback.

PDSCHs in the first set are PDSCHs with a configuration value range of 'dl-DataToUL-ACK' and do not support a time difference range between PDSCH and HARQ-ACK feedback; the PDSCH within the second set is a PDSCH with a configuration value range of "dl-DataToUL-ACK" that can support a time difference range between PDSCH and HARQ-ACK feedback.

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

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

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

step 601: sending 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 the time correspondence between hybrid adaptive repeat request acknowledgement (HARQ-ACK) feedback of the target PDSCH and 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;

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

The feedback method of hybrid adaptive retransmission request response information of the embodiment of the invention 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 the time corresponding relation between the hybrid adaptive retransmission request response HARQ-ACK feedback of the target PDSCH and 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 the HARQ-ACK feedback of the target PDSCH; and receiving the HARQ-ACK information of the target PDSCH in the target time unit, so that in the application scenes of improving the current land mobile communication NR system and supporting non-ground networks and the like, the HARQ-ACK information of the target PDSCH can be received in the indicated HARQ-ACK feedback time, 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 a time unit set number between the time unit set of the target time unit and the time unit set of the target PDSCH, before step 602, the method of the embodiment of the present invention may further include:

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, the PDSCH is located in the 2 nd time unit in the first set, and the target time unit is also located in the 2 nd time unit in the time unit set in which the target time unit is located.

the second preset condition is one of the following conditions:

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

EXAMPLE five

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

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

EXAMPLE six

Step B11, sending a 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 of a time unit of the PDSCH and a time unit set of a time unit fed back by the HARQ-ACK, the time unit sets comprise 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 according to the preset rule;

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

EXAMPLE seven

Step C11, sending 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 where a target time unit is located, and the first field contains the time unit number between a time unit fed back by the HARQ-ACK and a reference time unit;

and step C12, receiving the HARQ-ACK of the target PDSCH in the target time unit.

Example eight

Step D11, sending 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 where a target time unit is located, and for the PDSCH in the first set, the first field contains the time unit number between the time unit fed back by the HARQ-ACK and a reference time unit; for the PDSCH in the second set, the first field contains the number of time units between the target time unit and the time unit of the PDSCH.

Here, the PDSCH in the first set is a PDSCH for which the configuration value range of "dl-DataToUL-ACK" does not support the time difference range between the PDSCH and HARQ-ACK feedback; the PDSCH within the second set is a PDSCH with a configuration value range of "dl-DataToUL-ACK" that can support a time difference range between PDSCH and HARQ-ACK feedback.

And D12, receiving the HARQ-ACK of the target PDSCH in the target time unit.

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

acquiring 701, 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);

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 repeat request acknowledgement HARQ-ACK feedback of a target PDSCH, and the first field is used to indicate a temporal correspondence 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 time unit set number between a time unit set of a target time unit and a time unit set of a time unit of the target PDSCH;

accordingly, the time determination module 702 comprises:

the first time determining submodule is used for determining a target time unit set where the target time unit is located according to the first field;

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

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

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

the second preset condition is one of the following conditions:

In 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); a 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 adaptive repeat request acknowledgement (HARQ-ACK) feedback of a target 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 improvement of a current land mobile communication (NR) system and support of a non-ground network, the performance of a physical downlink control channel can be ensured on one hand, the peak throughput of terminal equipment is ensured on the other hand, 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 above-mentioned method embodiment applied to the terminal, and can achieve the same technical effect.

The UE described in the embodiments of the present invention may be a mobile phone (or a mobile phone), or other devices capable of sending or receiving wireless signals, including a user equipment (terminal), a personal digital assistant PDA, a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE or Mifi capable of converting mobile signals into wifi signals, an intelligent appliance, or other devices capable of autonomously communicating with a mobile communication network without human operation.

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 the processes of the embodiments of the feedback method for hybrid adaptive retransmission request response information applied to the terminal as described above when executing the program, and can achieve the same effect, and the details are not repeated here to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process of the foregoing embodiment of the feedback method for hybrid adaptive retransmission request response information, and can achieve the same effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

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

a transceiver 801, configured to acquire 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 repeat request acknowledgement HARQ-ACK feedback of a target PDSCH, and the first field is used to indicate a temporal correspondence 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 according to the embodiment of the present invention may also be configured to implement the functions implemented by all the modules in the terminal embodiment described above, and may also achieve the same technical effects as those achieved by the terminal embodiment described above.

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 temporal correspondence between hybrid adaptive repeat request acknowledgement HARQ-ACK feedback of the target PDSCH and 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 used 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:

and a processing module, configured to, when 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, determine, according to a second preset rule, a position of the target time unit in the target time unit set in which the target time unit is located before the target time unit receives HARQ-ACK information of the target PDSCH.

the second preset condition is one of the following conditions:

In the network device of the embodiment of the present invention, a sending module sends 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, a first field of the downlink control information is used to indicate a temporal correspondence between hybrid adaptive repeat request acknowledgement HARQ-ACK feedback of the target PDSCH and 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 application scenes of improving a current land mobile communication (NR) system and supporting a non-ground network and the like, the HARQ-ACK information of the target PDSCH can be received in the indicated HARQ-ACK feedback time, 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.

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

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; when the processor executes the program, the processes of the above embodiments of the feedback method for hybrid adaptive retransmission request response information applied to a network device are implemented, and the same technical effect can be achieved.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process of the above feedback method for hybrid adaptive retransmission request response information, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

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

the system comprises a transceiver and a receiver, wherein the transceiver is used for sending 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 time corresponding relation between hybrid adaptive repeat request response (HARQ-ACK) feedback of the target PDSCH and 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;

a transceiver further configured to receive 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 foregoing network device embodiments, and may also achieve the same technical effects as those achieved by the foregoing network device embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, 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 embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

A1. A feedback method of 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 predetermined time unit is agreed by a time slot or a sub-time slot in which the target PDSCH is located, or by a time domain resource configuration agreement of downlink and uplink.

A4. The method according to claim a2, wherein the first field contains the number of time unit sets between the time unit set of the target time unit and the time unit set of the target PDSCH;

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

A5. The method of claim A1 or A2,

the first field contains the number of time units between the target time unit and the reference time unit when a first preset condition is met;

A6. The method of claim A1,

under the condition that a second preset condition is met, the first field contains 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 self-adaptive retransmission request response information is applied to network equipment and is characterized by comprising the following steps:

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 predetermined time unit is agreed by a time slot or a sub-time slot in which the target PDSCH is located, or by a time domain resource configuration agreement of downlink and uplink.

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

B11. The method of claim B7 or B8,

B12. The method of claim B7,

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 predetermined time unit is agreed by a time slot or a sub-time slot in which the target PDSCH is located, or by a time domain resource configuration agreement of downlink and uplink.

C16. The terminal of claim C14, wherein the first field contains a number of time unit sets between a time unit set of a target time unit and a time unit set of the target PDSCH;

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,

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; characterized in that the processor, when executing the program, implements the steps of the method for feedback of hybrid adaptive retransmission request acknowledgement information according to any of claims a1-a 6.

E20. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for feedback of hybrid adaptive retransmission request acknowledgement information according to any of the claims a1-a 6.

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 predetermined time unit is agreed by a time slot or a sub-time slot in which the target PDSCH is located, or by a time domain resource configuration agreement of downlink and 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; wherein the processor when executing the program performs the steps of implementing the method for feeding back hybrid adaptive repeat request acknowledgement information according to any of claims B7-B12.

H28. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for feedback of hybrid adaptive retransmission request acknowledgement information according to any of the claims B7-B12.

Claims

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

2. The method of claim 1, wherein the first field contains one of the following information:

3. The method of claim 2, wherein the first field contains a time unit set number between a time unit set of a target time unit and a time unit set of the target PDSCH;

4. The method according to claim 1 or 2,

5. A feedback method of hybrid self-adaptive retransmission request response information is applied to network equipment and is characterized by comprising the following steps:

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

6. The method of claim 5, wherein the first field comprises one of the following information:

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

8. The method according to claim 5 or 6,

9. A terminal, comprising:

10. A network device, comprising: