CN110635869A

CN110635869A - Uplink control information sending method, terminal equipment and network side equipment

Info

Publication number: CN110635869A
Application number: CN201810643473.1A
Authority: CN
Inventors: 鲁智; 潘学明; 孙鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2019-12-31
Anticipated expiration: 2038-06-21
Also published as: WO2019242526A1; CN110635869B

Abstract

The embodiment of the invention discloses an uplink control information sending method, terminal equipment and network side equipment, wherein the method comprises the following steps: receiving Downlink Control Information (DCI), wherein the DCI is used for indicating the terminal equipment to feed back Uplink Control Information (UCI) corresponding to historical downlink transmission, and the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back; and transmitting the UCI. The embodiment of the invention can send the UCI which is not fed back or fails to be fed back in time, thereby avoiding the data retransmission of the network side equipment and effectively improving the resource utilization rate.

Description

Uplink control information sending method, terminal equipment and network side equipment

Technical Field

The present invention relates to the field of communications, and in particular, to an uplink control information sending method, a terminal device, and a network side device.

Background

In a New air interface (NR, New Radio) of a fifth generation (5G) mobile communication system, an unlicensed band (un-licensed band) may be used as a supplement to a licensed band (licensed band), so as to help an operator to expand the capacity of a service. Since the unlicensed band is shared by multiple technologies, e.g., WiFi, radar, LTE-LAA, etc. Therefore, when the unlicensed frequency band is used, it is necessary to comply with the listen before talk (LTB) rule, that is, channel sensing is performed before data is transmitted, and data transmission may be performed only when the channel is idle as a sensing result, so as to ensure that all devices can fairly use the unlicensed frequency band resources.

When a terminal device (UE) feeds back Uplink Control Information (UCI) to a base station, if a channel listening result is that the channel is busy, the UE cannot send the UCI in time, so that the base station needs to perform data retransmission on previous scheduling, and the resource utilization rate is low.

Disclosure of Invention

The embodiment of the invention aims to provide an uplink control information sending method, terminal equipment and network side equipment so as to solve the problem of resource utilization rate.

In a first aspect, an embodiment of the present invention provides an uplink control information sending method, which is applied to a terminal device, and the method includes:

receiving Downlink Control Information (DCI), wherein the DCI is used for indicating the terminal equipment to feed back Uplink Control Information (UCI) corresponding to historical downlink transmission, and the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back;

and transmitting the UCI.

In a second aspect, an embodiment of the present invention further provides an uplink control information sending method, which is applied to a network side device, and the method includes:

sending DCI, wherein the DCI is used for indicating terminal equipment to feed back UCI corresponding to historical downlink transmission, and the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back.

In a third aspect, an embodiment of the present invention further provides a terminal device, including:

a receiving module, configured to receive DCI, where the DCI is used to instruct the terminal device to feed back UCI corresponding to historical downlink transmission, where the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back;

and the sending module is used for sending the UCI.

In a fourth aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, the method implements the steps of the uplink control information sending method according to the first aspect.

In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the uplink control information sending method according to the first aspect are implemented.

In a sixth aspect, an embodiment of the present invention further provides a network side device, including:

a sending module, configured to send DCI, where the DCI is used to instruct a terminal device to feed back UCI corresponding to historical downlink transmission, where the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back.

In a seventh aspect, an embodiment of the present invention further provides a network-side device, where the network-side device includes a processor, a memory, and a computer program that is stored in the memory and is executable on the processor, and when the computer program is executed by the processor, the method for transmitting uplink control information according to the second aspect is implemented.

In an eighth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the uplink control information sending method according to the second aspect are implemented.

In the embodiment of the invention, the DCI used for indicating the terminal equipment to feed back the UCI corresponding to the historical downlink transmission is received, wherein the UCI corresponding to the historical downlink transmission is not fed back or fails to feed back, so that the terminal equipment can timely send the UCI which is not fed back or fails to feed back, the data retransmission of the network side equipment can be avoided, and the resource utilization rate is effectively improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a method for sending uplink control information according to an embodiment of the present invention;

fig. 3 is a schematic diagram of PDSCH scheduling according to an embodiment of the present invention;

fig. 4 is a schematic diagram of another PDSCH scheduling provided in the embodiment of the present invention;

fig. 5 is a schematic diagram of bit number binding according to an embodiment of the present invention;

fig. 6 is a flowchart illustrating another uplink control information sending method according to an embodiment of the present invention

Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another terminal device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another network-side device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention. As shown in fig. 1, the UE includes a User terminal 11 and a base station 12, where the User terminal 11 may be a terminal Equipment (UE), for example: the terminal side Device may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID, Mobile Internet Device), or a Wearable Device (Wearable Device), and it should be noted that the specific type of the user terminal 11 is not limited in the embodiments of the present invention. The base station 12 may be a base station of 5G and later releases (e.g., a gNB, a 5G NR NB), or a base station in other communication systems, or referred to as a node B, and it should be noted that, in the embodiment of the present invention, only the 5G base station is taken as an example, but the specific type of the base station 12 is not limited.

It should be noted that the specific functions of the user terminal 11 and the base station 12 are described in detail through a plurality of embodiments below.

Fig. 2 is a flowchart illustrating a method for sending uplink control information according to an embodiment of the present invention. The method is applied to the terminal equipment, and can be as follows.

Step S210, receives Downlink Control Information (DCI) from the network side device, where the DCI is used to instruct the terminal device to feed back UCI corresponding to historical Downlink transmission, where the UCI corresponding to historical Downlink transmission does not feed back or fails to feed back the UCI.

Step S220, sending UCI corresponding to historical downlink transmission that is not fed back or fails to feed back to the network side device.

For historical downlink transmission, before feeding back UCI corresponding to the historical downlink transmission, the terminal device needs to perform channel interception first, and if the channel interception result is that the channel is busy, the UCI corresponding to the historical downlink transmission cannot be fed back or fails to be fed back.

In order to enable UCI corresponding to historical downlink transmission which is not fed back or fails to be fed back to the network side equipment in time, DCI used for indicating the terminal equipment to feed back the UCI corresponding to the historical downlink transmission is received, and then the terminal equipment sends the UCI corresponding to the historical downlink transmission which is not fed back or fails to be fed back, so that the network side equipment receives the feedback in time.

The transmission process of UCI is described in detail below according to the difference of UCI that needs to be fed back.

The first method comprises the following steps: UCI is ACK/NACK corresponding to PDSCH.

In the embodiment of the present invention, the DCI is used to schedule a first Physical Downlink Shared Channel (PDSCH) group, where the first PDSCH group is a PDSCH set associated with a first Physical Uplink Control Channel (PUCCH); the historical downlink transmission is a second PDSCH group, wherein the second PDSCH group is a PDSCH set associated with a second PUCCH, and the transmission time of the second PUCCH is earlier than that of the first PUCCH; UCI is Acknowledgement/Negative Acknowledgement (ACK/NACK) corresponding to the second PDSCH group.

Fig. 3 is a schematic diagram of PDSCH scheduling according to an embodiment of the present invention.

As shown in fig. 3, the network side device configures 2 groups of PDSCHs, that is, feeds back ACK/NACK information of 2 groups of PDSCHs at most on one PUCCH resource. PDSCH group 1 is a set of PDSCHs associated with PUCCH1, PDSCH group 1 including three PDSCHs; PDSCH group 2 is a set of PDSCHs associated with PUCCH2, and PDSCH group 2 includes three PDSCHs.

And the network side equipment schedules the PDSCH group 2 and the PDSCH group 1 in sequence.

When the network side device schedules the downlink transmission PDSCH group 2, the terminal device needs to feed back ACK/NACK corresponding to the PDSCH group 2 at the transmission time of the PUCCH 2.

However, if the terminal device is busy with the channel sensing result at the transmission time of the PUCCH2, the ACK/NACK corresponding to the PDSCH group 2 cannot be fed back. At this time, PDSCH group 2 becomes the second PDSCH group in the historical downlink transmission, PUCCH2 becomes the second PUCCH associated with the second PDSCH group in the historical downlink transmission (PDSCH group 2), and ACK/NACK corresponding to the PDSCH group 2 not fed back becomes UCI corresponding to the second PDSCH group in the historical downlink transmission (PDSCH group 2).

In order to feed back ACK/NACK corresponding to the historical downlink transmission second PDSCH group (PDSCH group 2) in time, when the network side device schedules the downlink transmission PDSCH group 1, that is, the PDSCH group 1 becomes the current downlink transmission first PDSCH group, and the PUCCH1 becomes the first PUCCH associated with the current downlink transmission first PDSCH group (PDSCH group 1). The terminal equipment receives DCI for scheduling the current downlink transmission of the first PDSCH group (PDSCH group 1), wherein the DCI is used for indicating the terminal equipment to feed back ACK/NACK corresponding to the historical downlink transmission second PDSCH group (PDSCH group 2) which is not fed back before or fails to feed back.

Further, the terminal device transmits ACK/NACK corresponding to the second PDSCH group (PDSCH group 2) of the historical downlink transmission and ACK/NACK corresponding to the first PDSCH group (PDSCH group 1) of the current downlink transmission on the first PUCCH (PUCCH1) associated with the first PDSCH group (PDSCH group 1) of the current downlink transmission.

In the embodiment of the present invention, whether to send the ACK/NACK corresponding to the historical downlink transmission may be configured by displaying an indication or hiding the indication, which will be described in detail below.

A: and displaying the indication.

In the embodiment of the present invention, sending UCI corresponding to historical downlink transmission includes:

and if the DCI comprises a Hybrid Automatic Repeat Request (HARQ-ACK) indication field of the second PDSCH group, sending ACK/NACK corresponding to the second PDSCH group and ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

And in the DCI for scheduling the current downlink transmission first PDSCH group, increasing the HARQ-ACK indication domain of the historical downlink transmission second PDSCH group.

After the terminal equipment receives the DCI for scheduling the current downlink transmission first PDSCH group, if the HARQ-ACK indication domain of the historical downlink transmission second PDSCH group included in the DCI is in an activated state, the terminal equipment sends ACK/NACK corresponding to the historical downlink transmission second PDSCH group and ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group, and data retransmission can be avoided because the network side equipment cannot receive the ACK/NACK corresponding to the historical downlink transmission second PDSCH group;

and if the HARQ-ACK indication domain of the historical downlink transmission second PDSCH group included in the DCI is in an inactivated state, the terminal equipment sends ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group.

The ACK/NACK corresponding to different PDSCH groups may be transmitted after joint coding or independent coding.

In the embodiment of the invention, the second PDSCH group comprises at least one PDSCH group; the DCI comprises a plurality of HARQ-ACK indication domains, and different HARQ-ACK indication domains correspond to different PDSCH groups in the second PDSCH group.

If there are multiple PDSCH groups with no ACK/NACK feedback or failed feedback in the second PDSCH group with historical downlink transmission, the DCI scheduling the current first PDSCH group with downlink transmission may include the HARQ-ACK indicator field of each PDSCH group in the second PDSCH group with historical downlink transmission.

The network side equipment configures the group identification ID of the PDSCH group, so that in the DCI for scheduling the current downlink transmission first PDSCH group, a group ID counting field is added, wherein the group ID counting field is used for indicating which PDSCH group is currently scheduled, and the HARQ-ACK indication field of the auxiliary historical downlink transmission second PDSCH group is used for determining which PDSCH group in the historical downlink transmission second PDSCH group corresponds to ACK/NACK.

Fig. 4 is a schematic diagram of another PDSCH scheduling method according to an embodiment of the present invention.

As shown in fig. 4, the network side device configures 3 groups of PDSCHs, that is, feeds back ACK/NACK information of 3 groups of PDSCHs at most on one PUCCH resource. PDSCH group 3 is a set of PDSCHs associated with PUCCH3, PDSCH group 3 including three PDSCHs; PDSCH group 2 is a set of PDSCHs associated with PUCCH2, PDSCH group 2 including three PDSCHs; PDSCH group 1 is a PDSCH set associated with PUCCH1, and PDSCH group 1 includes three PDSCHs.

Since the network side device configures 3 groups of PDSCH, the bit number of the group ID counting field is 2 bits (bit), and the bit number of the HARQ-ACK feedback indication field in the DCI of the scheduling PDSCH is 3 bits.

And the network side schedules the PDSCH group 3, the PDSCH group 2 and the PDSCH group 1 in sequence.

When the network side device schedules the downlink transmission PDSCH group 3, that is, the PDSCH group 3 becomes the current downlink transmission first PDSCH group, the PUCCH3 becomes the first PUCCH associated with the current downlink transmission first PDSCH group (PDSCH group 3).

At this time, the group ID count field in the DCI scheduling the current downlink transmission of the first PDSCH group (PDSCH group 3) is 00. If the HARQ-ACK feedback indication field in the DCI is 000 or 100, the ACK/NACK corresponding to the current downlink transmission first PDSCH group (PDSCH group 3) is transmitted on the first PUCCH (PUCCH3) associated with the current downlink transmission first PDSCH group (PDSCH group 3).

When the network side device schedules the downlink PDSCH group 2, that is, the PDSCH group 2 becomes the current downlink first PDSCH group, the PUCCH2 becomes the first PUCCH associated with the current downlink first PDSCH group (PDSCH group 2), the PDSCH group 3 becomes the historical downlink second PDSCH group, and the PUCCH3 becomes the second PUCCH associated with the historical downlink second PDSCH group (PDSCH group 3).

At this time, the group ID count field in the DCI scheduling the current downlink transmission of the first PDSCH group (PDSCH group 2) is 01. If the HARQ-ACK feedback indication domain in the DCI is 000 or 010, sending ACK/NACK corresponding to the first downlink transmission PDSCH group (PDSCH group 2) on a first PUCCH (PUCCH2) associated with the first downlink transmission PDSCH group (PDSCH group 2);

if the HARQ-ACK feedback indication field in the DCI is 100 or 110, the ACK/NACK corresponding to the historical downlink transmission second PDSCH group (PDSCH group 3) and the ACK/NACK corresponding to the current downlink transmission first PDSCH group (PDSCH group 2) are transmitted on the first PUCCH (PUCCH2) associated with the current downlink transmission first PDSCH group (PDSCH group 2).

When the network side device schedules the downlink PDSCH group 1, that is, the PDSCH group 1 becomes the current downlink first PDSCH group, the PUCCH1 becomes the first PUCCH associated with the current downlink first PDSCH group (PDSCH group 1), the PDSCH group 3 and PDSCH group 2 become the historical downlink second PDSCH group, and the PUCCH3 and PUCCH2 become the second PUCCH associated with the historical downlink second PDSCH group (PDSCH group 3 and PDSCH group 2).

At this time, the group ID count field in the DCI scheduling the current downlink transmission of the first PDSCH group (PDSCH group 3) is 10.

If the HARQ-ACK feedback indication domain in the DCI is 000 or 001, sending ACK/NACK corresponding to the first downlink transmission PDSCH group (PDSCH group 1) on a first PUCCH (PUCCH1) associated with the first downlink transmission PDSCH group (PDSCH group 1);

if the HARQ-ACK feedback indication domain in the DCI is 010 or 011, sending ACK/NACK corresponding to the second PDSCH group (PDSCH group 2) of historical downlink transmission and ACK/NACK corresponding to the first PDSCH group (PDSCH group 1) of current downlink transmission on a first PUCCH (PUCCH1) associated with the first PDSCH group (PDSCH group 1) of current downlink transmission;

if the HARQ-ACK indication field in the scheduling DCI is 110 or 111, the ACK/NACK corresponding to the second PDSCH group (PDSCH group 3 and PDSCH group 2) of the historical downlink transmission and the ACK/NACK corresponding to the first PDSCH group (PDSCH group 1) of the current downlink transmission are transmitted on the first PUCCH (PUCCH1) associated with the first PDSCH group (PDSCH group 1) of the current downlink transmission.

The network side device may further add a total DAI identifier in the DCI scheduling the downlink transmission PDSCH group, to indicate the total number of PDSCHs included in the currently scheduled downlink transmission PDSCH group.

B: and displaying an indication in a hidden mode.

and if the preset information corresponding to the DCI accords with the preset sending rule, sending ACK/NACK corresponding to the second PDSCH group and ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

The method comprises the steps that network side equipment determines a preset sending rule for sending ACK/NACK corresponding to historical downlink transmission, and configures the preset sending rule to terminal equipment through a high-level signaling, so that when the terminal equipment receives DCI for scheduling a current downlink transmission first PDSCH group, if preset information corresponding to the DCI accords with the preset sending rule, the terminal equipment sends ACK/NACK corresponding to a historical downlink transmission second PDSCH group and ACK/NACK corresponding to a current downlink transmission first PDSCH group on a first PUCCH associated with the current downlink transmission first PDSCH group, and data retransmission can be avoided because the network side equipment cannot receive the ACK/NACK corresponding to the historical downlink transmission second PDSCH group.

The implicit indication means may include the following ones.

(1) A CORESET corresponding to a Physical Downlink Control Channel (PDCCH) carrying the DCI is a target CORESET.

For example, the preset transmission rule is determined according to the CORESET corresponding to the PDCCH carrying the DCI which schedules the current downlink transmission first PDSCH group.

If the CORESET ID corresponding to the PDCCH carrying the DCI for scheduling the current downlink transmission first PDSCH group is an even number, sending ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group;

and if the CORESET ID corresponding to the PDCCH for carrying the DCI for scheduling the current downlink transmission first PDSCH group is an odd number, sending ACK/NACK corresponding to the historical downlink transmission second PDSCH group and ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group.

The number of PDSCH groups requiring ACK/NACK feedback included in the second PDSCH group of historical downlink transmission is configured by the network, for example, 1, 2, 3, 4 is equivalent.

(2) And the search space corresponding to the PDCCH bearing the DCI is the target search space.

For example, the preset sending rule is determined according to the search space corresponding to the PDCCH carrying the DCI which schedules the current downlink transmission first PDSCH group.

If the search space ID corresponding to the PDCCH carrying the DCI for scheduling the current downlink transmission first PDSCH group is an even number, sending ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group;

and if the search space ID corresponding to the PDCCH for carrying the DCI for scheduling the current downlink transmission of the first PDSCH group is an odd number, sending ACK/NACK corresponding to the historical downlink transmission second PDSCH group and ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group.

(3) A Control information Element (CCE) corresponding to a PDCCH carrying DCI is a target CCE.

For example, the preset transmission rule is determined according to the CCE corresponding to the PDCCH carrying the DCI for scheduling the current downlink transmission of the first PDSCH group.

If the initial CCE ID corresponding to the PDCCH for bearing the DCI for scheduling the current downlink transmission first PDSCH group is an even number, sending ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group;

and if the initial CCE ID corresponding to the PDCCH for carrying the DCI for scheduling the current downlink transmission first PDSCH group is an odd number, sending ACK/NACK corresponding to the historical downlink transmission second PDSCH group and ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group.

(4) An ACK/NACK Resource index (ARI) in the DCI is a target ARI.

For example, the preset transmission rule is determined according to ARI in DCI scheduling the current downlink transmission of the first PDSCH group.

If the ARI in the DCI of the current downlink transmission first PDSCH group is scheduled to use the second half of the total number of the configured ARI resources, sending ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group;

and if the ARI in the DCI of the current downlink transmission first PDSCH group is scheduled to use the first half of the total number of the configured ARI resources, sending ACK/NACK corresponding to the historical downlink transmission second PDSCH group and ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group.

(5) Transmit Power Control (TPC) in the DCI is a target TPC.

For example, the preset transmission rule is determined according to the TPC in the DCI scheduling the current downlink transmission of the first PDSCH group.

For example, if the TPC command in the DCI scheduling the current downlink transmission first PDSCH group indicates 1 or 3, the ACK/NACK corresponding to the current downlink transmission first PDSCH group is sent on the first PUCCH associated with the current downlink transmission first PDSCH group;

and if the TPC in the DCI of the current downlink transmission first PDSCH group indicates 0 or 2, sending ACK/NACK corresponding to the second PDSCH group of the historical downlink transmission and ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group.

(6) A Cyclic Redundancy Check (CRC) in the DCI is the target CRC.

Currently, the CRC length in the DCI is 24 bits, 16 bits of the DCI are scrambled by Radio Network Temporary Identity (RNTI) of the terminal device, and the remaining 8 bits are available. In the embodiment of the invention, an 8-bit sequence is designed, for example, a ZC sequence, a walsh sequence and the like scramble the 8-bit CRC, and whether ACK/NACK corresponding to historical downlink transmission is fed back or not is assisted to be indicated.

For example, if the scrambling code corresponding to the CRC in the DCI scheduling the current downlink transmission first PDSCH group is [ 11111111 ], sending the ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group;

if the scrambling code corresponding to the CRC in the DCI for scheduling the current downlink transmission first PDSCH group is [ 11-1-111-1-1 ], sending ACK/NACK corresponding to the current downlink transmission first PDSCH group and ACK/NACK corresponding to the latest historical downlink transmission second PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group;

if the scrambling code corresponding to the CRC in the DCI for scheduling the current downlink transmission first PDSCH group is [ 1111-1-1-1-1 ], sending ACK/NACK corresponding to the current downlink transmission first PDSCH group and ACK/NACK corresponding to the two latest historical downlink transmission second PDSCH groups on the first PUCCH associated with the current downlink transmission first PDSCH group;

and if the scrambling code corresponding to the CRC in the DCI for scheduling the current downlink transmission first PDSCH group is [ 1-1-11-111-1 ], sending the ACK/NACK corresponding to the current downlink transmission first PDSCH group and the ACK/NACK corresponding to the latest three historical downlink transmission second PDSCH groups on the first PUCCH associated with the current downlink transmission first PDSCH group.

In the embodiment of the present invention, sending ACK/NACK corresponding to the second PDSCH group and ACK/NACK corresponding to the first PDSCH group on the first PUCCH includes: if the bit number of the ACK/NACK corresponding to the second PDSCH group is larger than the preset bit number, performing bit number binding on the ACK/NACK corresponding to the second PDSCH group according to the preset bit number to obtain bound ACK/NACK corresponding to the second PDSCH group, wherein the preset bit number represents the maximum transmission bit number of the ACK/NACK corresponding to the second PDSCH group; and sending the bundled ACK/NACK corresponding to the second PDSCH group and the ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

When feeding back ACK/NACK corresponding to a plurality of PDSCH groups on one PUCCH, if the feedback is carried out according to a semi-static codebook, the ACK/NACK is fed back according to the number of the PDSCHs which are possibly received, and the feedback efficiency is low; if the feedback is performed according to the dynamic codebook, that is, the ACK/NACK is fed back according to the number of actually received PDSCHs, when the scheduling grant of the last PDSCH is lost, the ACK/NACK load size may be confused, so that the network side device fails to decode the received ACK/NACK.

In order to avoid confusion of the sizes of the ACK/NACK loads, if ACK/NACK corresponding to one or more PDSCH groups is sent on the first PUCCH associated with the current downlink transmission first PDSCH group, the maximum transmission bit number of the ACK/NACK corresponding to each PDSCH group is configured.

Fig. 5 is a schematic diagram of bit number binding according to an embodiment of the present invention.

In fig. 5, in the second PDSCH group (PDSCH group 3 and PDSCH group 2) of the historical downlink transmission, PDSCH group 3 includes 6 PDSCHs: 1-6 corresponding PDSCH, PDSCH group 2 includes 6 PDSCH: DAI is PDSCH corresponding to 1-6.

The network side equipment configures a preset bit number of 4 bits, that is, the maximum transmission bit number of ACK/NACK corresponding to each PDSCH group in the second PDSCH group (PDSCH group 3 and PDSCH group 2) of historical downlink transmission is 4 bits.

Because the historical downlink transmission second PDSCH group (PDSCH group 3) includes 6 PDSCHs, if no bit number binding is performed, the bit number of the ACK/NACK corresponding to the historical downlink transmission second PDSCH group (PDSCH group 3) is at least 6 bits, which is greater than the preset bit number of 4 bits. Therefore, the bit number bundling is performed on the ACK/NACK corresponding to the second PDSCH group (PDSCH group 3) of the historical downlink transmission: for PDSCH with DAI being 1-3, ACK/NACK with 1bit is respectively corresponded; for PDSCH with DAI-4-6, a total of 1bit ACK/NACK is corresponded. At this time, the number of bits of ACK/NACK corresponding to the second PDSCH group (PDSCH group 3) of the historical downlink transmission is 4 bits.

Because the historical downlink transmission second PDSCH group (PDSCH group 2) includes 6 PDSCHs, if no bit number binding is performed, the bit number of the ACK/NACK corresponding to the historical downlink transmission second PDSCH group (PDSCH group 2) is at least 6 bits, which is greater than the preset bit number of 4 bits. Therefore, the bit number bundling is performed on the ACK/NACK corresponding to the second PDSCH group (PDSCH group 2) of the historical downlink transmission: for PDSCH with DAI being 1-3, ACK/NACK with 1bit is respectively corresponded; for PDSCH with DAI-4-6, a total of 1bit ACK/NACK is corresponded. At this time, the number of bits of ACK/NACK corresponding to the second PDSCH group (PDSCH group 2) of the historical downlink transmission is 4 bits.

By binding the bit number, the ACK/NACK load corresponding to each PDSCH group in the second PDSCH group of the historical downlink transmission is a determined bit number, and the load size is not mixed up due to the loss of authorization.

In addition, for the PDSCH corresponding to the 1-bit ACK/NACK obtained by the bundling operation shown in fig. 5, that is, the PDSCH with DAI ═ 4-6, the network side device may limit the number of scheduled PDSCHs, for example, only schedule 1 PDSCH with DAI ═ 4, so as to solve the potential grant loss situation.

It should be noted that if the bit number of the ACK/NACK corresponding to one PDSCH group in the historical downlink transmission second PDSCH group is smaller than the preset bit number, the NACK is added to the ACK/NACK corresponding to the PDSCH group so as to reach the preset bit number.

By configuring and scheduling the DCI of the current downlink transmission first PDSCH group, the DCI is used for indicating the terminal equipment to feed back the ACK/NACK corresponding to the historical downlink transmission second PDSCH group, so that data retransmission caused by the fact that the network side equipment cannot receive the ACK/NACK corresponding to the historical downlink transmission second PDSCH group can be avoided, and the resource utilization rate is effectively improved.

And the second method comprises the following steps: the UCI is an aperiodic Channel State Information (CSI) report.

In the embodiment of the invention, historical downlink transmission is used for triggering terminal equipment to feed back a target aperiodic CSI report at a first preset sending moment;

the UCI is a target aperiodic CSI report with no feedback or failed feedback;

and the first preset sending time is earlier than the DCI receiving time.

The network side equipment sends a Reference Signal (RS) to the terminal equipment, so that the terminal equipment calculates a target aperiodic CSI report according to the RS and feeds back the target aperiodic CSI report at a first preset sending moment.

However, if the channel sensing result of the terminal device is channel busy at the first preset transmission time, the target aperiodic CSI report cannot be fed back. At this time, the target aperiodic CSI report is a target aperiodic CSI report corresponding to the historical downlink transmission.

In order to feed back a target aperiodic CSI report corresponding to historical downlink transmission in time, the network side device configures DCI for indicating feedback of the target aperiodic CSI report corresponding to historical downlink transmission, so that the terminal device sends the target aperiodic CSI report corresponding to the historical downlink transmission after receiving the current DCI.

In the embodiment of the present invention, sending UCI includes:

and if the DCI comprises an indication domain for triggering the reporting of the target aperiodic CSI report, sending the target aperiodic CSI report at a second preset sending time indicated by the DCI.

The network side equipment configures an indication domain for reporting the target aperiodic CSI report which is not fed back or fails to be fed back in the current DCI, so that the terminal equipment sends the target aperiodic CSI report at the second preset sending time indicated by the DCI after receiving the current DCI, the network side equipment does not need to resend the RS, and the terminal equipment does not need to recalculate the aperiodic CSI report, namely, reports the historical CSI report.

Since the terminal device does not need to recalculate the aperiodic CSI report, the time interval between the current DCI and the second preset transmission time may be smaller than the time interval between the historical DCI triggering the terminal device to transmit the target aperiodic CSI report at the first preset transmission time and the first preset transmission time.

In the embodiment of the present invention, sending a target aperiodic CSI report includes:

and if the time difference between the first preset sending time and the DCI receiving time is not more than the preset effective duration, or the time difference between the second preset sending time and the first preset sending time is not more than the preset effective duration, sending the target aperiodic CSI report.

The network side equipment can configure a preset effective time length, namely a CSI report effective window, for the terminal equipment through a high-level signaling, so as to represent the effective time length of the target aperiodic CSI report after the terminal equipment calculates and obtains the target aperiodic CSI report according to an RS without feedback or after the feedback fails.

After receiving a current DCI of a target aperiodic CSI report indicating no feedback or feedback failure before feedback, judging whether the target aperiodic CSI report without feedback or feedback failure is effective according to a time difference between a first preset sending time of the target aperiodic CSI report without feedback or feedback failure and a receiving time of the current DCI, or according to a time difference between the first preset sending time and a second preset sending time indicated by the current DCI.

If the time difference is not greater than the preset effective duration, that is, the target aperiodic CSI report which is not fed back or fails to be fed back is effective, the terminal equipment sends the target aperiodic CSI report which is not fed back or fails to be fed back at a second preset sending time;

if the time difference is greater than the preset effective duration, that is, the target aperiodic CSI report which is not fed back or fails to be fed back fails, the terminal device sends a preset value, for example, an OOR at a second preset sending time.

By configuring the current DCI to indicate the target aperiodic CSI report which is not fed back or fails to be fed back before the feedback of the terminal equipment, the problem that the network side equipment cannot receive the target aperiodic CSI report which is not fed back or fails to be fed back and resends the RS can be avoided, and the resource utilization rate is effectively improved.

The terminal equipment does not need to calculate the aperiodic CSI report again according to the RS, and energy conservation is facilitated. Meanwhile, a smaller time interval can be adopted between the receiving time of the current DCI and the second preset sending time so as to achieve the purpose of quick reporting.

According to the technical scheme recorded in the embodiment of the invention, the DCI used for indicating the terminal equipment to feed back the UCI corresponding to the historical downlink transmission is received, wherein the UCI corresponding to the historical downlink transmission is not fed back or fails to feed back, so that the terminal equipment can timely send the UCI which is not fed back or fails to feed back, the data retransmission of the network side equipment can be avoided, and the resource utilization rate is effectively improved.

Fig. 6 is a flowchart illustrating another uplink control information sending method according to an embodiment of the present invention. The method is applied to the network side equipment, and can be as follows.

Step S610, sending DCI, where the DCI is used to instruct a terminal device to feed back UCI corresponding to historical downlink transmission, where the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back.

In order to enable the UCI corresponding to the historical downlink transmission which is not fed back or fails to be fed back to the network side equipment in time, the network side equipment sends DCI used for indicating the terminal equipment to feed back the UCI corresponding to the historical downlink transmission, so that the terminal equipment feeds back the UCI corresponding to the historical downlink transmission which is not fed back or fails to be fed back before after receiving the DCI, and the network side equipment receives the feedback in time.

According to different UCIs required to be fed back, DCI sent by the network side equipment is different.

In the embodiment of the invention, the DCI is used for scheduling a first PDSCH group, wherein the first PDSCH group is a PDSCH set associated with a first PUCCH; the historical downlink transmission is a second PDSCH group, wherein the second PDSCH group is a PDSCH set associated with a second PUCCH, and the transmission time of the second PUCCH is earlier than that of the first PUCCH; and UCI is ACK/NACK corresponding to the second PDSCH group.

In order to feed back the ACK/NACK corresponding to the historical downlink transmission second PDSCH group in time, when the network side device schedules the downlink transmission first PDSCH group, that is, the first PDSCH group is currently downlink transmitted, the network side device sends DCI for scheduling the current downlink transmission first PDSCH group, where the DCI is used to instruct the terminal device to feed back the ACK/NACK corresponding to the historical downlink transmission second PDSCH group that has not been fed back before or failed to be fed back, so that the terminal device feeds back the ACK/NACK corresponding to the historical downlink transmission second PDSCH group and the ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group.

In the embodiment of the present invention, whether the current DCI sent by the network side device indicates that the terminal device sends the ACK/NACK corresponding to the historical downlink transmission may be configured by displaying an indication or hiding the indication, which is described in detail below.

A. And displaying the indication.

In the embodiment of the invention, the DCI comprises a HARQ-ACK indication domain of the second PDSCH group, wherein the HARQ-ACK indication domain of the second PDSCH group is used for indicating the terminal equipment to send ACK/NACK corresponding to the second PDSCH group on the first PUCCH.

In the DCI for scheduling the current downlink transmission first PDSCH group sent by the network side equipment, the HARQ-ACK indication domain of the historical downlink transmission second PDSCH group is added, so that after the terminal equipment receives the DCI, if the HARQ-ACK indication domain of the historical downlink transmission second PDSCH group included in the DCI is in an activated state, the ACK/NACK corresponding to the historical downlink transmission second PDSCH group and the ACK/NACK corresponding to the current downlink transmission first PDSCH group are sent on the first PUCCH associated with the current downlink transmission first PDSCH group, and data retransmission can be avoided because the network side equipment cannot receive the ACK/NACK corresponding to the historical downlink transmission second PDSCH group.

If there are multiple PDSCH groups with no ACK/NACK feedback or failed feedback in the historical downlink transmission second PDSCH group, the DCI for scheduling the current downlink transmission first PDSCH group sent by the network side device may include the HARQ-ACK indicator field of each PDSCH group in the historical downlink transmission second PDSCH group.

The network side device may add a group ID count field in the sent DCI scheduling the current downlink transmission first PDSCH group, where the group ID count field is used to indicate which group of PDSCH is currently scheduled, and determine which PDSCH group in the historical downlink transmission second PDSCH group corresponds to ACK/NACK by assisting the HARQ-ACK indication field of the historical downlink transmission second PDSCH group.

B: and displaying an indication in a hidden mode.

In the embodiment of the invention, the preset information corresponding to the DCI accords with the preset sending rule.

And the network side equipment determines a preset sending rule for feeding back ACK/NACK corresponding to historical downlink transmission, and configures the preset sending rule to the terminal equipment through a high-level signaling. The preset information corresponding to the DCI for scheduling the current downlink transmission first PDSCH group sent by the network side equipment accords with the preset sending rule, and after the terminal equipment receives the DCI, the terminal equipment sends ACK/NACK corresponding to the historical downlink transmission second PDSCH group and ACK/NACK corresponding to the current downlink transmission first PDSCH group on the first PUCCH associated with the current downlink transmission first PDSCH group, so that data retransmission can be avoided because the network side equipment cannot receive the ACK/NACK corresponding to the historical downlink transmission second PDSCH group.

The implicit indication means may include the following ones.

(1) The CORESET corresponding to the PDCCH bearing the DCI is a target CORESET;

(2) a search space corresponding to the PDCCH bearing the DCI is a target search space;

(3) CCE corresponding to the PDCCH bearing the DCI is the target CCE;

(4) ARI in the DCI is target ARI;

(5) the TPC in the DCI is the target TPC;

(6) the CRC in the DCI is the target CRC.

In the embodiment of the invention, the method further comprises the following steps: configuring a preset bit number for the terminal equipment through high-level signaling, wherein the preset bit number is used for indicating that if the bit number of ACK/NACK corresponding to the second PDSCH group is larger than the preset bit number, the terminal equipment binds the bit number of the ACK/NACK corresponding to the second PDSCH group according to the preset bit number to obtain the bound ACK/NACK corresponding to the second PDSCH group, and sends the bound ACK/NACK corresponding to the second PDSCH group and the ACK/NACK corresponding to the first PDSCH group on the first PUCCH; the preset bit number represents the maximum transmission bit number of the ACK/NACK corresponding to the second PDSCH group.

In order to avoid confusion of the sizes of the ACK/NACK loads, the network side equipment configures a preset bit number for the terminal equipment through a high-level signaling, namely the maximum transmission bit number of the ACK/NACK corresponding to each PDSCH group in the second PDSCH group in the historical downlink transmission, so that the terminal equipment binds the bit number of the ACK/NACK corresponding to each PDSCH group in the second PDSCH group in the historical downlink transmission according to the preset bit number to obtain the bound ACK/NACK corresponding to the second PDSCH group, and sends the bound ACK/NACK corresponding to the second PDSCH group in the historical downlink transmission and the ACK/NACK corresponding to the first PDSCH group in the current downlink transmission on the first PUCCH.

By setting the preset bit number, the ACK/NACK load corresponding to each PDSCH group in the second PDSCH group of the historical downlink transmission is a determined bit number, and the load size is not mixed up due to the loss of authorization.

By sending DCI for scheduling the current downlink transmission first PDSCH group, the DCI is used for indicating the terminal equipment to feed back ACK/NACK corresponding to the second PDCSH group of the historical downlink transmission, so that data retransmission can be avoided because the network side equipment cannot receive the ACK/NACK corresponding to the second PDSCH group of the historical downlink transmission, and the resource utilization rate is effectively improved.

And the second method comprises the following steps: the UCI is an aperiodic CSI report.

The historical downlink transmission is used for triggering the terminal equipment to feed back a target aperiodic CSI report at a first preset sending moment; the UCI is a target aperiodic CSI report with no feedback or failed feedback; and the first preset sending time is earlier than the DCI receiving time.

The network side equipment configures a Reference Signal (RS) for the terminal equipment, so that the terminal equipment calculates a target aperiodic CSI report according to the RS, and feeds back the target aperiodic CSI report at a first preset sending time.

In order to feed back a target aperiodic CSI report corresponding to historical downlink transmission in time, the network side equipment sends DCI for indicating the feedback of the target aperiodic CSI report corresponding to the historical downlink transmission, so that after the terminal equipment receives the current DCI, the terminal equipment feeds back the target aperiodic CSI report which is not fed back before or fails to feed back.

In the embodiment of the present invention, the DCI includes an indication field for triggering the reporting of the target aperiodic CSI report, where the indication field for triggering the reporting of the target aperiodic CSI report is used to indicate the terminal device to send the target aperiodic CSI report at the second preset sending time.

The network side equipment configures an indication domain for reporting the target aperiodic CSI report which is not fed back or fails to be fed back in the sent current DCI, so that the terminal equipment sends the target aperiodic CSI report at a second preset sending time indicated by the DCI after receiving the current DCI, the network side equipment does not need to resend the RS, and the terminal equipment does not need to recalculate the aperiodic CSI report.

In the embodiment of the invention, the method further comprises the following steps:

and configuring a preset effective duration for the terminal equipment through a high-level signaling, wherein the preset effective duration is used for indicating that the terminal equipment sends a target aperiodic CSI report if the time difference between the first preset sending time and the DCI receiving time is not greater than the preset effective duration, or the time difference between the second preset sending time and the first preset sending time is not greater than the preset effective duration.

After the network side device sends DCI for indicating a target aperiodic CSI report which is not fed back or fails to be fed back before feedback, the terminal device may determine whether the target aperiodic CSI report which is not fed back or fails to be fed back is valid according to a time difference between a receiving time of the current DCI and a first preset sending time of the target aperiodic CSI report which is not fed back or fails to be fed back, or according to a time difference between the first preset sending time and a second preset sending time indicated by the current DCI.

By sending the DCI for indicating the target aperiodic CSI report which is not fed back before or fails to be fed back by the terminal equipment, the terminal equipment can timely send the target aperiodic CSI report which is not fed back before or fails to be fed back, the phenomenon that the RS is sent again because the network side equipment cannot receive the target aperiodic CSI report which is not fed back or fails to be fed back can be avoided, and the resource utilization rate is effectively improved.

According to the technical scheme recorded in the embodiment of the invention, the DCI used for indicating the terminal equipment to feed back the UCI corresponding to the historical downlink transmission is sent, wherein the UCI corresponding to the historical downlink transmission is not fed back or fails to feed back, so that the terminal equipment sends the UCI which is not fed back or fails to feed back in time, the data retransmission of the network side equipment can be avoided, and the resource utilization rate is effectively improved.

It should be noted that, in the embodiment of the present invention, the "first PDSCH group" indicates current downlink transmission, and the "second PDSCH group" indicates historical downlink transmission.

The "first PUCCH" mentioned in the embodiments of the present invention denotes a PUCCH associated with a current downlink first PDSCH group, and the "second PUCCH" denotes a PUCCH associated with a historical downlink second PDSCH group.

Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. The terminal device 700 shown in fig. 7 includes:

a receiving module 701, configured to receive DCI, where the DCI is used to instruct a terminal device 700 to feed back UCI corresponding to historical downlink transmission, where the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back;

a sending module 702, configured to send the UCI.

Optionally, the DCI is used to schedule a first PDSCH group, wherein the first PDSCH group is a PDSCH set associated with a first PUCCH;

the historical downlink transmission is a second PDSCH group, wherein the second PDSCH group is a PDSCH set associated with a second PUCCH, and the transmission time of the second PUCCH is earlier than that of the first PUCCH;

and UCI is ACK/NACK corresponding to the second PDSCH group.

Optionally, the sending module 702 is further configured to:

and if the DCI comprises the HARQ-ACK indication domain of the second PDSCH group, sending ACK/NACK corresponding to the second PDSCH group and ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

Optionally, the second PDSCH group includes at least one PDSCH group;

the DCI comprises a plurality of HARQ-ACK indication domains, and different HARQ-ACK indication domains correspond to different PDSCH groups in the second PDSCH group.

Optionally, the sending module 702 is further configured to:

Optionally, the preset information corresponding to the DCI conforms to a preset sending rule, where the preset sending rule includes one of:

the CORESET corresponding to the PDCCH bearing the DCI is a target CORESET;

a search space corresponding to the PDCCH bearing the DCI is a target search space;

CCE corresponding to the PDCCH bearing the DCI is the target CCE;

ARI in the DCI is target ARI;

the TPC in the DCI is the target TPC;

the CRC in the DCI is the target CRC.

Optionally, the sending module 702 is further configured to:

if the bit number of the ACK/NACK corresponding to the second PDSCH group is larger than the preset bit number, performing bit number binding on the ACK/NACK corresponding to the second PDSCH group according to the preset bit number to obtain bound ACK/NACK corresponding to the second PDSCH group, wherein the preset bit number represents the maximum transmission bit number of the ACK/NACK corresponding to the second PDSCH group;

and sending the bundled ACK/NACK corresponding to the second PDSCH group and the ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

Optionally, the historical downlink transmission is used for triggering the terminal device to feed back the target aperiodic CSI report at a first preset sending time;

the UCI is a target aperiodic CSI report with no feedback or failed feedback;

and the first preset sending time is earlier than the DCI receiving time.

Optionally, the sending module 702 is further configured to:

and if the time difference between the first preset sending time and the DCI receiving time is not more than the preset effective duration, or the time difference between the second preset sending time and the first preset sending time is not more than the preset effective duration, sending the target aperiodic CSI report at the second preset sending time.

The terminal device 700 provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiment of fig. 2, and is not described here again to avoid repetition.

Fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present invention. The network-side device 800 shown in fig. 8 includes:

a sending module 801, configured to send DCI, where the DCI is used to instruct a terminal device to feed back UCI corresponding to historical downlink transmission, where the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back.

and UCI is ACK/NACK corresponding to the second PDSCH group.

Optionally, the DCI includes a HARQ-ACK indication field of the second PDSCH group, where the HARQ-ACK indication field of the second PDSCH group is used to indicate the terminal device to send ACK/NACK corresponding to the second PDSCH group and ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

Optionally, the second PDSCH group includes at least one PDSCH group;

Optionally, the network-side device 800 further includes:

the terminal equipment comprises a first configuration module, a second configuration module and a third configuration module, wherein the first configuration module is used for configuring a preset bit number for the terminal equipment through high-level signaling, the preset bit number is used for indicating that if the bit number of ACK/NACK corresponding to a second PDSCH group is larger than the preset bit number, the terminal equipment binds the bit number of the ACK/NACK corresponding to the second PDSCH group according to the preset bit number to obtain bound ACK/NACK corresponding to the second PDSCH group, and sends the bound ACK/NACK corresponding to the second PDSCH group and the ACK/NACK corresponding to the first PDSCH group on a first PUCCH;

the preset bit number represents the maximum transmission bit number of the ACK/NACK corresponding to the second PDSCH group.

Optionally, the preset information corresponding to the DCI conforms to a preset sending rule.

the CORESET corresponding to the PDCCH bearing the DCI is a target CORESET;

CCE corresponding to the PDCCH bearing the DCI is the target CCE;

ARI in the DCI is target ARI;

the TPC in the DCI is the target TPC;

the CRC in the DCI is the target CRC.

the UCI is a target aperiodic CSI report with no feedback or failed feedback;

and the first preset sending time is earlier than the DCI receiving time.

Optionally, the DCI includes an indication field for triggering the target aperiodic CSI report, where the indication field for triggering the target aperiodic CSI report is used to indicate the terminal device to send the target aperiodic CSI report at a second preset sending time.

Optionally, the network-side device 800 further includes:

and the second configuration module is used for configuring a preset effective duration for the terminal equipment through a high-level signaling, wherein the preset effective duration is used for indicating that the terminal equipment sends the target aperiodic CSI report if the time difference between the first preset sending time and the DCI receiving time is not greater than the preset effective duration or the time difference between the second preset sending time and the first preset sending time is not greater than the preset effective duration.

The network side device 800 provided in the embodiment of the present invention can implement each process implemented by the network side device in the method embodiment of fig. 6, and is not described here again to avoid repetition.

Fig. 9 is a schematic structural diagram of another terminal device according to an embodiment of the present invention. The terminal apparatus 900 shown in fig. 9 includes: at least one processor 901, memory 902, at least one network interface 904, and a user interface 903. The various components in the terminal device 900 are coupled together by a bus system 905. It is understood that the bus system 905 is used to enable communications among the components. The bus system 905 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 9 as bus system 905.

The user interface 903 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It is to be understood that the memory 902 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (SRAM, Static RAM), Dynamic random access memory (DRAM, Dynamic RAM), Synchronous Dynamic random access memory (SDRAM, Synchronous DRAM), double data Rate Synchronous Dynamic random access memory (DDRSDRAM, double data Rate SDRAM), Enhanced Synchronous Dynamic random access memory (ESDRAM, Enhanced SDRAM), Synchronous link Dynamic random access memory (SLDRAM, Synchronous link DRAM), and Direct memory bus random access memory (DRRAM, Direct RAM). The memory 902 of the systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 902 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 9021 and application programs 9022.

The operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is configured to implement various basic services and process hardware-based tasks. The application 9022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing the method of an embodiment of the present invention may be included in application 9022.

In this embodiment of the present invention, the terminal device 900 further includes: a computer program stored on the memory 902 and executable on the processor 901, the computer program realizing the following steps when executed by the processor 901:

receiving DCI, wherein the DCI is used for indicating terminal equipment to feed back UCI corresponding to historical downlink transmission, and the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back; and transmitting the UCI.

The method disclosed in the above embodiments of the present invention may be applied to the processor 901, or implemented by the processor 901. The processor 901 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 901. The Processor 901 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and combines the hardware to complete the steps of the above method. In particular, the computer readable storage medium has stored thereon a computer program which, when being executed by the processor 901, carries out the steps of the method embodiment as in fig. 2.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The terminal device 900 can implement the foregoing processes implemented by the terminal device in the method embodiment of fig. 2, and details are not described here to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiment in fig. 2, 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.

Fig. 10 is a schematic structural diagram of another network-side device according to an embodiment of the present invention. The network side device 1000 shown in fig. 10 is capable of implementing the details of the method embodiment of fig. 6 and achieving the same effect. As shown in fig. 10, the network-side device 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, a user interface 1004, and a bus interface, wherein:

in this embodiment of the present invention, the network side device 1000 further includes: a computer program stored on the memory 1003 and executable on the processor 1001, the computer program when executed by the processor 1001 implementing the steps of:

and sending DCI, wherein the DCI is used for indicating terminal equipment to feed back UCI corresponding to historical downlink transmission, and the UCI corresponding to the historical downlink transmission is not fed back or fails to be fed back.

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1004 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1001 is responsible for managing a bus architecture and general processes, and the memory 1003 may store data used by the processor 1001 in performing operations.

The network side device 1000 can implement each process implemented by the network side device in the foregoing method embodiment of fig. 6, and details are not described here for avoiding repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiment in fig. 6, 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.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An uplink control information sending method, which is applied to a terminal device, is characterized by comprising the following steps:

and transmitting the UCI.

2. The method of claim 1, wherein the DCI is for scheduling a first Physical Downlink Shared Channel (PDSCH) group, wherein the first PDSCH group is a set of PDSCHs associated with a first Physical Uplink Control Channel (PUCCH);

and the UCI is acknowledgement information ACK/negative acknowledgement information NACK corresponding to the second PDSCH group.

3. The method of claim 2, wherein transmitting the UCI comprises:

and if the DCI comprises a hybrid automatic repeat request acknowledgement (HARQ-ACK) indication domain of the second PDSCH group, sending ACK/NACK corresponding to the second PDSCH group and ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

4. The method of claim 3, wherein the second PDSCH group comprises at least one PDSCH group;

5. The method of claim 2, wherein transmitting the UCI comprises:

and if the preset information corresponding to the DCI accords with a preset sending rule, sending ACK/NACK corresponding to the second PDSCH group and ACK/NACK corresponding to the first PDSCH group on the first PUCCH.

6. The method of claim 5, wherein the predetermined information corresponding to the DCI conforms to a predetermined transmission rule, and comprises one of:

a control resource set CORESET corresponding to the physical downlink control channel PDCCH bearing the DCI is a target CORESET;

a control information element (CCE) corresponding to the PDCCH bearing the DCI is a target CCE;

the ACK/NACK resource index ARI in the DCI is a target ARI;

controlling the Transmission Power Control (TPC) in the DCI to be a target TPC;

and the cyclic redundancy check CRC in the DCI is the target CRC.

7. The method of claim 3 or 5, wherein transmitting the ACK/NACK for the second PDSCH group and the ACK/NACK for the first PDSCH group on the first PUCCH comprises:

if the bit number of the ACK/NACK corresponding to the second PDSCH group is larger than a preset bit number, performing bit number binding on the ACK/NACK corresponding to the second PDSCH group according to the preset bit number to obtain bound ACK/NACK corresponding to the second PDSCH group, wherein the preset bit number represents the maximum transmission bit number of the ACK/NACK corresponding to the second PDSCH group;

8. The method of claim 1, wherein the historical downlink transmission is used for triggering the terminal device to feed back a target aperiodic Channel State Information (CSI) report at a first preset transmission time;

the UCI is the target aperiodic CSI report with no feedback or failed feedback;

and the first preset sending time is earlier than the DCI receiving time.

9. The method of claim 8, wherein transmitting the UCI comprises:

10. The method of claim 9, wherein transmitting the target aperiodic CSI report at a second preset transmission time indicated by the DCI comprises:

and if the time difference between the first preset sending time and the receiving time of the DCI is not greater than a preset effective duration, or if the time difference between the second preset sending time and the first preset sending time is not greater than the preset effective duration, sending the target aperiodic CSI report at the second preset sending time.

11. An uplink control information sending method, which is applied to a network side device, is characterized in that the method includes:

12. The method of claim 11, wherein the DCI is for scheduling a first PDSCH group, wherein the first PDSCH group is a set of PDSCHs associated with a first PUCCH;

and the UCI is ACK/NACK corresponding to the second PDSCH group.

13. The method of claim 12, wherein the DCI includes a HARQ-ACK indication field for the second PDSCH group, wherein the HARQ-ACK indication field for the second PDSCH group is used to indicate to the terminal device to transmit an ACK/NACK corresponding to the second PDSCH group on the first PUCCH.

14. The method of claim 13, wherein the second PDSCH group comprises at least one PDSCH group;

15. The method of claim 12, wherein the method further comprises:

configuring a preset bit number for the terminal equipment through a high-level signaling, wherein the preset bit number is used for indicating that if the bit number of ACK/NACK corresponding to the second PDSCH group is greater than the preset bit number, the terminal equipment binds the ACK/NACK corresponding to the second PDSCH group according to the preset bit number to obtain bound ACK/NACK corresponding to the second PDSCH group, and sends the bound ACK/NACK corresponding to the second PDSCH group and the ACK/NACK corresponding to the first PDSCH group on the first PUCCH;

and the preset bit number represents the maximum transmission bit number of the ACK/NACK corresponding to the second PDSCH group.

16. The method of claim 11, wherein the predetermined information corresponding to the DCI conforms to a predetermined transmission rule.

17. The method of claim 16, wherein the predetermined information corresponding to the DCI conforms to a predetermined transmission rule, and the predetermined information comprises one of:

the CORESET corresponding to the PDCCH bearing the DCI is a target CORESET;

the CCE corresponding to the PDCCH bearing the DCI is a target CCE;

the ARI in the DCI is a target ARI;

the TPC in the DCI is a target TPC;

and the CRC in the DCI is the target CRC.

18. The method of claim 11, wherein the historical downlink transmission is used to trigger the terminal device to feed back a target aperiodic CSI report at a first preset transmission time;

the UCI is the target aperiodic CSI report with no feedback or failed feedback;

and the first preset sending time is earlier than the DCI receiving time.

19. The method of claim 18, wherein an indication field for triggering the target aperiodic CSI report is included in the DCI, and wherein the indication field for triggering the target aperiodic CSI report is used to indicate the terminal device to transmit the target aperiodic CSI report at a second preset transmission time.

20. The method of claim 19, wherein the method further comprises:

and configuring a preset effective duration for the terminal equipment through a high-level signaling, wherein the preset effective duration is used for indicating that if the time difference between the first preset sending time and the receiving time of the DCI is not greater than the preset effective duration, or if the time difference between the second preset sending time and the first preset sending time is not greater than the preset effective duration, the terminal equipment sends the target aperiodic CSI report at the second preset sending time.

21. A terminal device, comprising:

and the sending module is used for sending the UCI.

22. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method of transmitting uplink control information according to any of claims 1 to 10.

23. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, implements the steps of the uplink control information transmitting method according to any one of claims 1 to 10.

24. A network-side device, comprising:

25. A network-side device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method of transmitting uplink control information according to any of claims 11 to 20.

26. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, implements the steps of the uplink control information transmitting method according to any one of claims 11 to 20.