CN114070473A

CN114070473A - Information feedback method, device, terminal and network side equipment

Info

Publication number: CN114070473A
Application number: CN202010753462.6A
Authority: CN
Inventors: 李娜; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2022-02-18

Abstract

The application discloses an information feedback method, an information feedback device, a terminal and network side equipment, and belongs to the technical field of wireless communication. The information feedback method comprises the following steps: a terminal acquires the decoding states of one or more downlink channels, wherein the one or more downlink channels are downlink channels which need to be fed back in a time unit of the terminal; and if the ratio of the one or more downlink channels which are not decoded correctly is determined to be less than or equal to a first threshold value according to the decoding state, sending first feedback information or not sending the feedback information in the time unit, wherein the first feedback information comprises acknowledgement information or feedback information of each downlink channel in the one or more downlink channels.

Description

Information feedback method, device, terminal and network side equipment

Technical Field

The application belongs to the technical field of wireless communication, and particularly relates to an information feedback method, an information feedback device, a terminal and network side equipment.

Background

In a 5G communication system, a terminal (User Equipment, UE) needs to transmit Hybrid Automatic Repeat reQuest (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) information on a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH) for Downlink transmission, or a Physical Downlink Control Channel (PDCCH) for releasing Semi-Persistent Scheduling (SPS) PDSCH, or a PDCCH for instructing a Secondary Cell (Secondary Cell, Scell) to enter a sleep state. Wherein the PDSCH includes a PDCCH dynamically scheduled PDSCH or a semi-statically scheduled PDSCH (SPS PDSCH). The UE receives the PDSCH in time slot n, and then feeds back HARQ-ACK in time slot n + k1, where k1 is indicated by a PDCCH that schedules or activates the PDSCH, and the value range of k1 is configured by Radio Resource Control (RRC). And on the base station side, the base station receives corresponding HARQ-ACK feedback information in a corresponding time unit, and if the base station does not receive the corresponding HARQ-ACK feedback, the base station considers that the UE does not receive the PDCCH for scheduling the PDSCH and needs to retransmit the PDSCH. Because the UE may schedule multiple PDSCHs in one time slot, and the values of k1 may be different, the UE may need to feed back HARQ-ACK information of multiple PDSCHs in a certain time slot, and when the UE feeds back HARQ-ACK information of multiple PDSCHs, the UE feeds back corresponding ACK/NACK according to the decoding results of each PDSCH.

In the related art, in a time unit, a UE feeds back HARQ-ACK information for one or more PDSCHs, where each PDSCH or each Transport Block (TB) has corresponding ACK/NACK information, and the UE constructs an HARQ-ACK codebook according to a certain method. And the UE determines the resource for feeding back the HARQ-ACK according to the bit number of the fed back HARQ-ACK. In Ultra-high reliability and Ultra-Low delay Communication (urrllc), the reliability of PDSCH is very high, so that the UE mostly feeds back ACK. Therefore, certain HARQ-ACK information redundancy exists, PUCCH transmission resources are wasted, and UE power consumption is increased.

Disclosure of Invention

The embodiment of the application aims to provide an information feedback method, an information feedback device, a terminal and network side equipment, which can solve the problem that HARQ-ACK information redundancy of a downlink channel fed back by UE is redundant.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an information feedback method is provided, where the method includes: a terminal acquires the decoding states of one or more downlink channels, wherein the one or more downlink channels are downlink channels which need to be fed back in a time unit of the terminal; and if the ratio that the one or more downlink channels are not decoded correctly is determined to be smaller than or equal to a first threshold value according to the decoding state, sending first feedback information or not sending feedback information in the time unit, wherein the first feedback information comprises acknowledgement information or feedback information of each downlink channel in the one or more downlink channels, and the value range of the first threshold value is [0,1 ].

In a second aspect, an information feedback apparatus is provided, including: an obtaining module, configured to obtain decoding statuses of one or more downlink channels, where the one or more downlink channels are downlink channels that need to be fed back within a time unit of the terminal; a transmission module, configured to send first feedback information or not send feedback information in the time unit when it is determined that a ratio of incorrect decoding of the one or more downlink channels is smaller than or equal to a first threshold according to the decoding state, where the first feedback information includes one piece of acknowledgement information or feedback information of each downlink channel in the one or more downlink channels, and a value range of the first threshold is [0,1 ].

In a third aspect, a feedback information receiving method is provided, where the method includes: the method comprises the steps that a network side device detects feedback information transmitted by a terminal on a target uplink channel, wherein the feedback information is feedback of the terminal aiming at one or more downlink channels fed back by an indication in a time unit; if the detected feedback information comprises acknowledgement information or no feedback information is detected, determining that the ratio of the one or more downlink channel transmission failures is less than or equal to a first threshold, wherein the value range of the first threshold is [0,1 ].

In a fourth aspect, a feedback information receiving apparatus is provided, including: the system comprises a detection module, a feedback module and a feedback module, wherein the detection module is used for detecting feedback information transmitted by a terminal on a target uplink channel, and the feedback information is the feedback of the terminal aiming at one or more downlink channels which indicate feedback in a time unit; a determining module, configured to determine that a ratio of the one or more downlink channel transmission failures is less than or equal to a first threshold when the detected feedback information includes an acknowledgment information or the feedback information is not detected, where a value range of the first threshold is [0,1 ].

In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.

In a sixth aspect, a network-side device is provided, which comprises a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the third aspect.

In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the third aspect.

In an eighth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a terminal program or instruction to implement the method according to the first aspect, or the processor is configured to execute a network-side device program or instruction to implement the method according to the third aspect.

In the embodiment of the application, the terminal analyzes the decoding state of the downlink channel needing to be fed back in a time unit, and if the ratio of incorrect decoding is less than or equal to a first threshold, the terminal does not send feedback information or sends first feedback information, wherein the first feedback information comprises acknowledgement information or feedback information of each downlink channel, so that redundancy of HARQ-ACK information can be avoided, uplink transmission resources are saved, and power consumption of UE is reduced.

Drawings

FIG. 1 illustrates a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic flowchart illustrating an information feedback method provided in an embodiment of the present application;

fig. 3 shows a PDSCH scheduling diagram in an embodiment of the present application;

fig. 4 shows another PDSCH scheduling diagram in the embodiment of the present application;

FIG. 5 is a diagram illustrating a feedback window of HARQ-ACK in an embodiment of the present application;

FIG. 6a shows an PDSCH TDRA representation intent in an embodiment of the present application;

figure 6b shows a candidate PDSCH opportunity exclusion diagram in an embodiment of the present application;

fig. 7 is a schematic structural diagram illustrating an information feedback apparatus provided in an embodiment of the present application;

fig. 8 is a schematic flowchart illustrating a feedback information receiving method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a feedback information receiving apparatus provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 11 is a schematic diagram illustrating a hardware structure of a terminal according to an embodiment of the present application;

fig. 12 shows a hardware structure diagram of a network-side device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation)^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

The information feedback method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Fig. 2 is a flowchart illustrating an information feedback method provided in an embodiment of the present application, where the method 200 may be executed by a terminal. In other words, the method may be performed by software or hardware installed on the terminal. As shown in fig. 2, the method may include the following steps.

S210, the terminal acquires the decoding state of one or more downlink channels, wherein the one or more downlink channels are the downlink channels which need to be fed back in a time unit of the terminal.

When the terminal decodes the downlink channel, when detecting DCI released by the SPS PDSCH or correctly decoding a Transport Block (TB) corresponding to a downlink channel, the UE may generate 1 ACK for the TB or the DCI releasing the SPS PDSCH, or generate one ACK for each PDSCH, and if the UE does not correctly decode the TB, generate 1 NACK for the TB or the PDSCH. Therefore, in one possible implementation manner, the step S210 of obtaining the decoding statuses of one or more downlink channels may also refer to obtaining HARQ-ACK information of a downlink channel that needs to be fed back in a time unit. If one or more downlink channels include PDSCH of multiple TBs, the decoding status of each TB corresponding to one or more downlink channels or HARQ-ACK information corresponding to each TB may also be referred to.

S212, if it is determined that the ratio of the one or more downlink channels that are not decoded correctly is less than or equal to a first threshold according to the decoding status, sending first feedback information or not sending feedback information in the time unit, where the first feedback information includes one piece of acknowledgement information or feedback information of each downlink channel in the one or more downlink channels, and a value range of the first threshold is [0,1 ].

In a possible implementation manner, the ratio that the one or more downlink channels are not decoded correctly is determined according to the decoding state, or whether the ratio of NACK therein is smaller than or equal to a first threshold value is determined according to the obtained HARQ-ACK information of the downlink channel that needs to be fed back in a time unit, and if so, one piece of acknowledgement information or feedback information (i.e., the obtained HARQ-ACK information) corresponding to each downlink channel is fed back in the time unit or no feedback information is sent.

In a possible implementation manner, if the ratio of the one or more downlink channels that are not decoded correctly is greater than a first threshold, second feedback information is sent in the time unit, where the second feedback information includes one piece of non-acknowledgement information or feedback information of each of the one or more downlink channels. Or, if the NACK ratio in the acquired HARQ-ACK information of the downlink channel that needs to be fed back in a time unit is greater than the first threshold, feeding back a piece of non-acknowledgement information or feedback information corresponding to each downlink channel in the time unit.

In the foregoing possible implementation manner, the feedback information sent by the UE in the time unit may include any one of the following:

(1) an acknowledgement or a non-acknowledgement, e.g., 1bit (bit) ACK information, or 1bit NACK information; when the ratio of incorrect decoding is less than or equal to a first threshold value, feeding back first feedback information containing confirmation information, and when the ratio of incorrect decoding is greater than the first threshold value, feeding back second feedback information containing non-confirmation information;

(2) one piece of acknowledgement information or N pieces of feedback information (i.e., feedback information of each downlink channel), for example, 1-bit (bit) ACK information, or N-bit feedback information (where each bit is ACK or NACK). That is, when the ratio of incorrect decoding is less than or equal to the first threshold, feeding back first feedback information including one piece of acknowledgement information, and when the ratio of incorrect decoding is greater than the first threshold, feeding back second feedback information including N pieces of feedback information (each downlink channel in the one or more downlink channels), where N is the number of HARQ-ACKs corresponding to the downlink channel that needs to be fed back in one time unit, and may be, for example, equal to the number of downlink channels that need to be fed back or the number of TBs included in the downlink channel that needs to be fed back. Each piece of feedback information corresponds to one downlink channel or one TB of the downlink channel needing feedback, if one downlink channel comprises 1 TB and is not decoded correctly, the feedback information corresponding to the downlink channel is non-acknowledgement information (NACK), and if one downlink channel comprises 1 TB and is decoded correctly, the feedback information corresponding to the downlink channel is acknowledgement information (ACK); by adopting the mode, when the incorrect decoding proportion is less than or equal to the first threshold, 1 piece of confirmation information is fed back to avoid redundancy of ACK information, and when the incorrect decoding proportion is greater than the first threshold, the feedback information of each downlink channel is fed back, so that the network side can know which downlink channels are not decoded correctly to execute corresponding retransmission, and waste of downlink resources caused by retransmission of the downlink channels fed back in the time unit is avoided.

(3) N feedback information or one non-acknowledgement information (e.g., 1-bit NACK). For example, N-bit feedback information (where each bit is an ACK or NACK), or 1-bit (bit) ACK information. That is, when the ratio of incorrect decoding is less than or equal to the first threshold, feeding back second feedback information including N pieces of feedback information (each downlink channel in the one or more downlink channels), where N is the number of HARQ-ACKs corresponding to the downlink channel that needs to be fed back in one time unit, and may be, for example, equal to the number of downlink channels that need to be fed back or the number of TBs included in the downlink channel that needs to be fed back. Each piece of feedback information corresponds to one downlink channel or one TB of the downlink channel needing feedback, if one downlink channel comprises 1 TB and is not decoded correctly, the feedback information corresponding to the downlink channel is non-acknowledgement information (NACK), and if one downlink channel comprises 1 TB and is decoded correctly, the feedback information corresponding to the downlink channel is acknowledgement information (ACK); when the rate of incorrect decoding is greater than the first threshold, feeding back second feedback information including a non-acknowledgement information. This avoids redundancy of NACK information when the proportion of incorrect decoding is greater than the first threshold.

(4) N pieces of feedback information. That is, the N pieces of feedback information are fed back regardless of whether the incorrectly decoded ratio is smaller than the first threshold.

(5) Second feedback information (e.g., 1-bit NACK) that is not fed back or contains one non-acknowledgement information. That is, when the ratio of incorrect decoding is less than or equal to the first threshold, no feedback is given, that is, no feedback information is sent, and when the ratio of incorrect decoding is greater than the first threshold, second feedback information containing one piece of non-acknowledgement information is fed back.

(6) No feedback or N feedback information (e.g., N-bit ACK/NACK). That is, when the ratio of incorrect decoding is less than or equal to the first threshold, no feedback information is sent, when the ratio of incorrect decoding is greater than the first threshold, second feedback information including N feedback information (each downlink channel in the one or more downlink channels) is fed back, each feedback information corresponds to one downlink channel or one TB of the downlink channel that needs to be fed back, that is, if one of the downlink channels includes one TB and is not decoded correctly, the feedback information corresponding to the downlink channel is non-acknowledgement information (NACK), and if one of the downlink channels includes one TB and is decoded correctly, the feedback information corresponding to the downlink channel is acknowledgement information (ACK); by adopting the mode, when the incorrect decoding proportion is less than or equal to the first threshold value, the feedback information is not sent, the redundancy of the ACK information can be avoided, and when the incorrect decoding proportion is greater than the first threshold value, the feedback information of each downlink channel is fed back, so that the network side can know which downlink channels are not correctly decoded so as to execute corresponding retransmission, and the waste of downlink resources caused by the retransmission of the downlink channels fed back in the time unit is avoided.

In one possible implementation, the first threshold may be 0, for example, if one or more downlink channels are decoded correctly (or the corresponding HARQ-ACK information is ACK), one piece of acknowledgement information (e.g., 1-bit ACK) is fed back or no feedback information is transmitted. And if any one downlink channel in the one or more downlink channels is not decoded correctly (or the corresponding HARQ-ACK information is NACK), feeding back the HARQ-ACK information of the one or more downlink channels according to the corresponding configured HARQ-ACK codebook type.

Or the first threshold may take 1, when the ratio of the one or more downlink channels that are not decoded correctly is smaller than the first threshold, the feedback information of each of the one or more downlink channels is sent in the time unit, and when the ratio of the one or more downlink channels that are not decoded correctly is equal to the first threshold, a piece of non-acknowledgement information or no feedback information is sent in the time unit. For example, if none of the one or more downlink channels is decoded correctly (or the corresponding HARQ-ACK information is NACK), a non-acknowledgement information (e.g., 1-bit NACK) is fed back. And if any one downlink channel in the one or more downlink channels is decoded correctly (or the corresponding HARQ-ACK information is ACK), feeding back the HARQ-ACK information of the one or more downlink channels according to the corresponding configured HARQ-ACK codebook type.

Of course, the first threshold may also take other values from 0 to 1, and the value thereof may be determined according to practical applications, or may be configured or indicated by a network, which is not limited in this embodiment of the present application.

In one possible implementation, the one or more downlink channels are not decoded correctly, including: and judging that the first Downlink channel in the one or more Downlink channels is not detected through a Downlink Assignment Index (DAI). The DAI indicates the scheduling information of the downlink subframe, the terminal can determine whether DCI corresponding to some downlink channels is missed according to the DAI indication, and if the DCI corresponding to some downlink channels is missed, the downlink channels are determined not to be decoded correctly.

In one possible implementation, the one or more downlink channels include: PDSCH and/or PDCCH.

In one possible implementation, if the SPS PDSCH in the one or more downlink channels does not need to be decoded due to resource collision, the decoding of the SPS PDSCH does not belong to incorrect decoding or does not belong to the one or more downlink channels (i.e., the UE does not need to feed back its HARQ-ACK information in the time unit). For example, SPS PDSCH resources collide with other configured (e.g., semi-statically configured uplink resources) resources or Synchronization Signal Blocks (SSBs), and decoding of the SPS PDSCH does not fall into incorrect decoding.

In addition, if there is a time domain resource conflict between a plurality of SPS PDSCHs or due to the capability of the UE to receive the PDSCH, the UE only needs to decode the SPS PDSCH with the smallest configuration index, and other SPS PDSCHs do not need to be decoded and do not need to feed back HARQ-ACK, and the other SPS PDSCHs do not belong to the one or more downlink channels or the decoding of the other SPS PDSCHs does not belong to incorrect decoding.

In addition, in one possible implementation, if the SPS PDSCH in the one or more downlink channels is cancelled by the control information, the decoding of the SPS PDSCH belongs to correct decoding. For example, if the SPS PDSCH is cancelled by Downlink Control Information (DCI) (e.g., the PDSCH scheduled by DCI overlaps with the SPS PDSCH time domain resources) or a dynamic Slot Format Indication (SFI) is cancelled (e.g., the SFI indicates that some flexible symbols are uplink symbols), the UE needs to feed back a NACK. Since the network side knows that the SP PDSCH is cancelled, in one possible implementation of the present application, the SPs PDSCH is considered correctly decoded.

In another possible implementation, if the SPS PDSCH in the one or more downlink channels is canceled by the control information, the decoding of the SPS PDSCH belongs to correct decoding. That is, if one of the SPS PDSCH is canceled by DCI (e.g., the PDSCH scheduled by the DCI overlaps the SPS PDSCH time domain resources, etc.) or the dynamic SFI is canceled (e.g., the SFI indicates that some flexible symbols are uplink symbols), the network side and the terminal may not understand the same because the DCI or the DCI transmitting the dynamic SFI may have missed detection, and therefore, in one possible implementation manner of the present application, the SPS PDSCH is considered as being incorrectly decoded.

In one possible implementation manner, when the first feedback information is sent, the first feedback information may be sent on a Physical Uplink Control Channel (PUCCH), or may also be sent on a Physical Uplink Shared Channel (PUSCH).

In the foregoing possible implementation manner, optionally, when the first feedback information is sent on the PUCCH, the first feedback information includes one piece of acknowledgement information; or, when the first feedback is sent on the PUSCH, the first feedback information includes feedback information of each downlink channel in the one or more downlink channels.

For example, if the PUCCH overlaps the PUSCH, the UE may multiplex N (N is the number of the one or more downlink channels) bits of HARQ-ACK information on the PUSCH, and then the UE may multiplex multiple bits on the PUSCH, or the UE may not multiplex the 1 piece of acknowledgement information on the PUSCH.

In one possible implementation manner, when the second feedback information is transmitted, the second feedback information may be transmitted on a PUCCH, or the second feedback information may also be transmitted on a PUSCH.

Similar to the first feedback information, in the foregoing possible implementation manner, optionally, when the second feedback information is sent on the PUCCH, the second feedback information sent on the PUCCH includes one piece of non-acknowledgement information, and when the second feedback information is sent on the PUSCH, the second feedback information sent on the PUSCH includes feedback information of each of the one or more downlink channels.

For example, if the PUCCH overlaps the PUSCH, the UE may multiplex N (N is the number of the one or more downlink channels) bits of HARQ-ACK information on the PUSCH, and then the UE may multiplex multiple bits on the PUSCH, or the UE may not multiplex the 1 piece of non-acknowledgement information on the PUSCH.

In one possible implementation manner, for the PUCCH resources, the base station may separately configure, for the UE, a PUCCH resource (i.e., a first PUCCH resource) feeding back 1-bit acknowledgement feedback information fed back for one or more PDSCHs and a PUCCH resource (i.e., a second PUCCH resource) feeding back feedback information (i.e., HARQ-ACK) of each downlink channel, where each configured PUCCH resource includes a time domain, a frequency domain, a code domain, a PUCCH format, PUCCH transmission power, and the like of the PUCCH resource. Therefore, in this possible implementation, the transmitting the first feedback information on the PUCCH includes: and if the first feedback information comprises acknowledgement information, sending the first feedback information on a first PUCCH resource, and if the first feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the first feedback information on a second PUCCH resource.

Similarly, for the PUCCH resource, the base station may separately configure a PUCCH resource (i.e., a third PUCCH resource) for feeding back 1-bit unacknowledged feedback information fed back for one or more PDSCHs and a PUCCH resource (i.e., a second PUCCH resource) for feeding back feedback information (i.e., HARQ-ACK) for each downlink channel for the UE. Transmitting the second feedback information on a PUCCH, comprising: and if the second feedback information comprises non-acknowledgement information, sending the second feedback information on a third PUCCH resource, and if the second feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the second feedback information on the second PUCCH resource.

In the foregoing possible implementation manners, the first PUCCH resource and the third PUCCH resource may be the same or different, and are not limited in this embodiment of the application.

In this embodiment, a terminal analyzes a decoding state of a downlink channel that needs to be fed back in a time unit, and if a ratio of incorrect decoding is less than or equal to a first threshold, does not send feedback information or sends first feedback information, where the first feedback information includes an acknowledgment information, or if the ratio of incorrect decoding is greater than the first threshold, does not send feedback information or sends second feedback information, where the second feedback information includes a non-acknowledgment information. The redundancy of HARQ-ACK information can be avoided, uplink transmission resources are saved, and the power consumption of UE is reduced.

The technical solutions provided in the embodiments of the present application are described below by specific examples.

In one example, as shown in fig. 3, the UE schedules the PDSCHs 1 to 4 and determines to feed back the HARQ-ACKs of the PDSCHs 1 to 4 at the same time slot n +4 according to the timing indication, e.g. k1, of the respective PDSCH-to-HARQ-ACK feedback.

If the UE configures a type 2HARQ-ACK codebook, namely a dynamic codebook, according to the related technology, at a time slot n +4, the UE determines a fed-back HARQ-ACK codebook according to the scheduling condition, specifically:

if the UE is not configured with CBG level PDSCH transmission, such as PDSCH-CodeBlockGroupTransmission, the UE feeds back HARQ-ACK according to Transport Block (TB) level, and one TB generates 1-bit HARQ-ACK information. If the maximum number of code subbands (maxnrofcodewordsscheduled bydci) configured for each DCI schedule is 2 and spatial bundling (e.g., HARQ-ACK-SpatialBundlingPUCCH) is configured, 1-bit HARQ-ACK information is fed back by 2 TBs.

In fig. 3, the UE receives each PDCCH and the corresponding PDSCH, and determines a HARQ-ACK feedback manner in a time slot n +4 for ACK/NACK according to a decoding result of each PDSCH, or HARQ-ACK information corresponding to the PDSCH.

If the first threshold is 0, if the PDSCH 1-4 are successfully decoded, the UE feeds back 1-bit ACK information in a time slot n +4, otherwise, the UE feeds back 4-bit HARQ-ACK information according to a type 2 codebook mode.

If the first threshold is any value between 0 and 1, if the ratio of successful decoding in PDSCH 1-4 is less than or equal to a certain threshold, the UE feeds back 1-bit ACK information in a time slot n +4, otherwise, the UE feeds back 4-bit HARQ-ACK information according to a type 2 codebook mode.

In addition, when the type 2 dynamic codebook is configured, DCI for scheduling the PDSCH includes DAI information, and the UE may determine the number of HARQ-ACK bits, i.e., the bit order, according to the DAI information, i.e., the corresponding relationship between each PDSCH and the HARQ-ACK information bits. The UE can judge whether part of PDCCH is missed according to the DAI, if so, the UE feeds back NACK information according to the corresponding HARQ-ACK bit position.

For example, in fig. 4, the UE missed detection of PDCCH2, and therefore did not receive PDSCH2, the UE determines the slot n +4 feedback HARQ-ACK manner for ACK/NACK according to the decoding result of each PDSCH, or HARQ-ACK information corresponding to the PDSCH.

That is, under the condition that the first threshold is 0, if the PDSCHs 1-4 are decoded successfully, the UE value feeds back 1-bit ACK information in the time slot n +4, otherwise, the UE feeds back 4-bit HARQ-ACK information according to the type 2 codebook mode. However, as the counting DAI (C-DAI) received by the UE is discontinuous or in the time slot n-1, the T-DAI indication received by the UE is 2, the UE only receives the PDCCH with the C-DAI of 1 and does not receive the PDCCH with the C-DAI of 2, and the PDCCH2 is judged to be missed, the UE constructs a HARQ-ACK codebook according to the type 2HARQ-ACK codebook mode in the time slot n +4 and feeds back the HARQ-ACK codebook, for example, 4-bit HARQ-ACK information corresponding to PDSCHs 1-4 is ACK/NACK, NACK, ACK/NACK and ACK/NACK.

If the first threshold is not 0, for example, any value between 0 and 1, if the ratio of successful decoding in the PDSCHs 1-4 is less than or equal to the first threshold, the UE only feeds back 1-bit ACK information in the time slot n +4, otherwise, the UE feeds back 4-bit HARQ-ACK information in a type 2 codebook manner. Since the DAI received by the UE is discontinuous, it is determined that PDCCH2 is missed. Assuming successful decoding of PDSCH1, PDSCH3 and PDSCH4, the threshold is 10%. Because only 75% of PDSCH is successfully decoded, the UE constructs an HARQ-ACK codebook according to a type 2HARQ-ACK codebook mode in a time slot n +4 and feeds back the HARQ-ACK codebook, and if 4-bit HARQ-ACK information corresponding to the PDSCH 1-4 is ACK, NACK, ACK and ACK.

In one example, if the UE configures a type 1 semi-static codebook, the DCI scheduling the PDSCH does not include a DAI. And the UE determines a PDSCH receiving candidate set to construct a codebook according to the semi-statically configured Time Domain Resource Allocation (TDRA), a feedback timing k1 set and the like, and for one PDSCH candidate position, if the UE receives the corresponding PDSCH, the UE feeds back ACK/NACK at the corresponding HARQ-ACK bit position, otherwise, if the corresponding PDSCH is not received, the NACK is fed back.

Wherein, the UE may determine the candidate PDSCH receiver opportunities according to the following factors:

(1) activating a k1 set associated with an UpLink (UpLink, UL) bandwidth part (BWP);

(2) a TDRA table of PDSCH;

(3) the subcarrier spacing of uplink and downlink BWP;

(4) semi-static uplink and downlink configuration.

The UE determines the feedback window for the HARQ-ACK according to the set of k1, e.g., k1 set as {5,6,7} in FIG. 5. For example, in fig. 5, the feedback window corresponding to the time slot n +9 is from time slot n +2 to time slot n +4, i.e., the UE feeds back HARQ-ACK information of the PDSCH scheduled to be transmitted in time slots n +2 to n +4 in time slot n + 9.

And determining candidate PDSCH receiving opportunities in slots corresponding to each k1 according to the TDRA and the semi-static uplink and downlink configuration of the PDSCH. For example, for a certain row in the TDRA shown in fig. 6a, if any one of its time domain positions is configured as an uplink symbol, the candidate PDSCH receiver opportunity is removed; if the time domain positions of different rows overlap, only one HARQ-ACK bit position corresponds. For example, as shown in fig. 6b, for k1 ═ 6, if candidate PDSCH receiver opportunities corresponding to row

indices

2,3, and 8 in the TDRA overlap with the UL symbol, these candidate PDSCH receiver opportunities are excluded.

Whereas for k 1-5, i.e. slot n +4, all PDSCH candidate receiver opportunities overlap with the UL symbol, then for k 1-5, candidate PDSCH receiver opportunities corresponding to all row indices in the TDRA are excluded. For k1 ═ 7, since there is no UL symbol, some row indices do not need to be excluded from the UL symbol, only non-overlapping candidate PDSCH opportunities in the determined TDRA, i.e.,

RI

4,5,6,7,8, are needed. Therefore, the UE needs to feed back 4+ 5-9-bit HARQ-ACK information in the time slot n +9 (assuming that the UE is not configured with CBG-level PDSCH transmission, and the maximum number of codes scheduled by each DCI is not configured to be 2). Suppose that the UE only receives 2 PDSCHs at slot n +2 indicating HARQ-ACK feedback at slot n +9, and no other candidate PDSCH receiver opportunities receive PDSCHs. The UE determines a feedback scheme of HARQ-ACK according to a decoding result of the PDSCH in the received PDSCH. For example, if 2 PDSCHs received in the time slot n +2 are decoded successfully, only 1-bit HARQ-ACK is fed back in the time slot n +9, otherwise, the UE feeds back HARQ-ACK in a type 1 codebook mode, that is, 9-bit HARQ-ACK.

In one example, if the UE configures type 3, that is, a one-shot codebook, 1bit is included in the DCI to trigger the UE to feed back HARQ-ACK in the form of the one-shot codebook, that is, the UE feeds back HARQ-ACK corresponding to all HARQ processes (processes) on all serving cells. Wherein, if a certain HARQ process does not schedule the PDSCH, the UE feeds back NACK. In one mode, when the UE feeds back the HARQ-ACK, the UE also reports the corresponding NDI when reporting the HARQ-ACK of each HARQ Process. In another mode, when feeding back the HARQ-ACK, only reporting the HARQ-ACK of each HARQ Process, and not reporting the NDI, and for one HARQ Process, once the UE has fed back the HARQ-ACK, the HARQ-ACK information of the corresponding HARQ Process is set as NACK.

One way of implementation is: and when the UE triggers the feedback of the one shot codebook in the time slot, the UE determines the HARQ-ACK feedback scheme according to the decoding result of the PDSCH.

The other realization mode is as follows: if all the HARQ processes (optionally, except for the HARQ process without corresponding PDSCH scheduling or the HARQ process with HARQ-ACK already fed back by the UE) are correspondingly ACK, the UE feeds back 1-bit ACK.

In one example, the UE only needs to feed back HARQ-ACKs for the SPS PDSCH in a certain time unit. The feedback timing of each PDSCH may be given by its activation DCI. When the UE activates multiple SPS PDSCHs, the UE may need to feed back HARQ-ACKs for one or more SPS PDSCHs in a certain time slot. When a plurality of SPS PDSCHs are fed back, the UE constructs SPS PDSCH HARQ-ACK only codebook according to aspects of DL time slots, configuration indexes, serving cells and the like of the PDSCHs.

Then, in this embodiment of the present application, determining the one or more uplink channels that need to be fed back in a time unit may include:

(1) all configured and activated PDSCHs, and PDSCHs fed back in that time unit (e.g., time slot);

(2) all configured and activated PDSCHs, and excluding some PDSCHs that could not be transmitted for some reason from the PDSCHs fed back in that time unit (e.g., time slot), e.g., overlapping with UL symbols,

(3) all configured and activated PDSCHs and some PDSCHs which are not transmitted are excluded from the PDSCHs fed back by the time unit (e.g. time slot), i.e. the UE determines that the base station does not transmit the PDSCH by some detection (DMRS detection, energy detection, etc.).

In one example, the base station may configure the UE with a maximum of 4 PUCCH resource sets (resource sets), where each resource set includes multiple PUCCH resources. When the UE feeds back the HARQ-ACK, the PUCCH resource for feeding back the HARQ-ACK is determined according to the PUCCH Resource Indicator (PRI) indication of the latest (last) DCI and the number of HARQ-ACK bits. Wherein, if the UE only needs to feed back 1-bit HARQ-ACK, the UE determines a resource in the first PUCCH resource set according to the indication of PRI (and possibly the first CCE index of last DCI). Optionally, the resource used when the UE feeds back the 1-bit ACK may be different from the above resource, for example, the base station separately configures the resource for feeding back the 1-bit ACK, so as to avoid the problem of misinterpretation in some scenarios. For example, the base station schedules 2 PDSCHs, but the UE does not receive the second PDSCH, and when the first PDSCH is successfully received, if there is no T-DAI, the UE cannot determine whether to miss detection. If the PUCCH resources fed back by the UE with 1bit ACK and fed back by the UE with 1/2 bit HARQ-ACK are different, the base station can judge whether the UE fails to detect or not by receiving the PUCCH resources fed back by the uplink.

It should be noted that, in the information feedback method provided in the embodiment of the present application, the execution main body may be an information feedback device, or a control module in the information feedback device for executing the information feedback method. In the embodiment of the present application, an information feedback device is taken as an example to execute an information feedback method, and the information feedback device provided in the embodiment of the present application is described.

Fig. 7 is a schematic structural diagram of an information feedback apparatus according to an embodiment of the present application, and as shown in fig. 7, the information feedback apparatus 700 mainly includes: an acquisition module 701 and a transmission module 702.

In this embodiment of the present application, the obtaining module 701 is configured to obtain a decoding state of one or more downlink channels, where the one or more downlink channels are downlink channels that need to be fed back in one time unit of the terminal; a transmission module 702, configured to send first feedback information or not send feedback information in the time unit when it is determined that the ratio of the one or more downlink channels that are not decoded correctly is smaller than or equal to a first threshold according to the decoding state, where the first feedback information includes one piece of acknowledgement information or feedback information of each downlink channel in the one or more downlink channels, and a value range of the first threshold is [0,1 ].

In one possible implementation manner, the transmission module 702 is further configured to:

and sending second feedback information in the time unit under the condition that the ratio of the one or more downlink channels which are not decoded correctly is determined to be larger than the first threshold according to the decoding state, wherein the second feedback information comprises non-acknowledgement information or feedback information of each downlink channel in the one or more downlink channels.

In one possible implementation, the one or more downlink channels are not decoded correctly, including:

and judging a first downlink channel in the one or more downlink channels through the DAI.

In one possible implementation, if the SPS PDSCH in the one or more downlink channels does not need to be decoded due to resource collision, the decoding of the SPS PDSCH does not belong to incorrect decoding.

In one possible implementation, if the SPS PDSCH in the one or more downlink channels is cancelled by the downlink control information, the decoding of the SPS PDSCH belongs to incorrect decoding.

In one possible implementation, if the SPS PDSCH in the one or more downlink channels is cancelled by the downlink control information, the decoding of the SPS PDSCH belongs to correct decoding.

In one possible implementation manner, the transmitting module 702 sends the first feedback information, including: the first feedback information is transmitted on a PUCCH or transmitted on a PUSCH.

In one possible implementation manner, the transmitting module 702 sends the first feedback information on a PUCCH, including: transmitting the first feedback information on a PUCCH, wherein the first feedback information comprises acknowledgement information; alternatively, the transmitting module 702 sends the first feedback information on the PUSCH, including: transmitting the first feedback information on a PUSCH, wherein the first feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

In one possible implementation manner, the transmitting module 702 sends the second feedback information, including:

transmitting the second feedback information on a PUCCH or transmitting the second feedback information on a PUSCH.

In one possible implementation manner, the transmitting module 702 sends the second feedback information on a PUCCH, including: transmitting the second feedback information on a PUCCH, wherein the second feedback information comprises one piece of non-acknowledgement information; alternatively, the transmitting module 702 sends the second feedback information on the PUSCH, including: transmitting the second feedback information on a PUSCH, wherein the second feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

In one possible implementation manner, the transmitting module 702 sends the first feedback information on a PUCCH, including: if the first feedback information comprises acknowledgement information, sending the first feedback information on a first PUCCH resource, and if the first feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the first feedback information on a second PUCCH resource; alternatively, the transmitting module 702 sends the second feedback information on the PUCCH, including: and if the second feedback information comprises non-acknowledgement information, sending the second feedback information on a third PUCCH resource, and if the second feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the second feedback information on the second PUCCH resource.

In one possible implementation, the transmission module is further configured to: if the first threshold is 1, sending feedback information of each downlink channel in the one or more downlink channels in the time unit if the ratio of the one or more downlink channels which are not decoded correctly is smaller than the first threshold, and sending a piece of non-acknowledgement information or not sending the feedback information in the time unit if the ratio of the one or more downlink channels which are not decoded correctly is equal to the first threshold.

The information feedback device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The information feedback device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The information feedback device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 1 to fig. 6, and achieve the same technical effect, and is not described here again to avoid repetition.

Fig. 8 is a flowchart illustrating a feedback information receiving method according to an embodiment of the present application, where the method 800 may be executed by a network side device. In other words, the method may be performed by software or hardware installed on the network-side device. As shown in fig. 8, the method may include the following steps.

S810, a network side device detects feedback information transmitted by a terminal on a target uplink channel, where the feedback information is feedback of the terminal on one or more downlink channels fed back by an instruction in a time unit.

In one possible implementation manner, the target uplink channel may include a PUCCH and/or a PUSCH, and the network side device may perform blind detection on the PUCCH and/or the PUSCH to obtain the feedback information.

S812, if the detected feedback information includes an acknowledgment information or the feedback information is not detected, determining that the ratio of the one or more downlink channel transmission failures is less than or equal to a first threshold, where a value range of the first threshold is [0,1 ].

In a possible implementation manner, if the detected feedback information includes a non-acknowledgement information, it is determined that the ratio of the one or more downlink channel transmission failures is greater than the first threshold.

In another possible implementation manner, if the detected feedback information includes a plurality of target feedback information, whether the corresponding downlink channel is successfully transmitted is determined according to a value of each target feedback information, where the target feedback information includes acknowledgement information and/or non-acknowledgement information.

In a possible implementation manner, if the first threshold is 1 and the detected feedback information includes one piece of non-acknowledgement information or no detected feedback information, it is determined that all transmission of the one or more downlink channels fails.

In a specific application, the terminal may transmit the feedback information in the manner described in the method 200, which may specifically refer to the related description in the method 200 and is not described herein again.

In a possible implementation manner, the network side device may further configure a first PUCCH resource, a second PUCCH resource, and a third PUCCH resource for the terminal, where the first PUCCH resource is used to transmit feedback information for feeding back only one piece of acknowledgement information for a plurality of downlink channels, the second PUCCH resource is used to transmit feedback information for each downlink channel, and the third PUCCH resource is used to transmit feedback information for feeding back only one piece of non-acknowledgement information for the plurality of downlink channels. Therefore, the problem that when the network side equipment detects the feedback information only containing one piece of confirmation information or one piece of non-confirmation information, whether the feedback information is directed to the feedback of a plurality of downlink channels or the feedback of one downlink channel cannot be confirmed can be avoided.

It should be noted that, in the feedback information receiving method provided in the embodiment of the present application, the execution main body may be a feedback information receiving apparatus, or a control module in the feedback information receiving apparatus for executing the feedback information receiving method. In the embodiment of the present application, a feedback information receiving apparatus is taken as an example to execute a feedback information receiving method, and a feedback information receiving apparatus provided in the embodiment of the present application is described.

Fig. 9 is a schematic structural diagram of a feedback information receiving apparatus according to an embodiment of the present application, and as shown in fig. 9, the feedback information receiving apparatus 900 mainly includes: a detection module 901 and a determination module 902.

In this embodiment of the present application, the detecting module 901 is configured to detect feedback information transmitted by a terminal on a target uplink channel, where the feedback information is feedback of the terminal for one or more downlink channels that indicate feedback in a time unit; a determining module 902, configured to determine that, when the detected feedback information includes one piece of acknowledgement information or no piece of feedback information is detected, a ratio of transmission failures of the one or more downlink channels is smaller than or equal to a first threshold, where a value range of the first threshold is [0,1 ].

In one possible implementation, the determining module 902 is further configured to:

determining that the ratio of the one or more downlink channel transmission failures is greater than the first threshold under the condition that the detected feedback information comprises one piece of non-acknowledgement information; alternatively, the first and second electrodes may be,

and determining whether the corresponding downlink channel is successfully transmitted according to the value of each target feedback information under the condition that the detected feedback information comprises a plurality of target feedback information, wherein the target feedback information comprises acknowledgement information and/or non-acknowledgement information.

In a possible implementation manner, the detecting module 901 detects feedback information transmitted by a terminal on a target uplink channel, including:

detecting the feedback information on PUCCH and/or PUSCH.

In one possible implementation, the determining module 902 is further configured to: if the first threshold is 1 and the detected feedback information includes one piece of non-acknowledgement information or undetected feedback information, determining that all transmissions of the one or more downlink channels fail.

The feedback information receiving apparatus in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a network side device. The network-side device may include, but is not limited to, the types of the network-side device 12 listed above, and the embodiment of the present application is not particularly limited.

The feedback information receiving apparatus in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The feedback information receiving apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 8, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 10, an embodiment of the present application further provides a communication device 1000, which includes a processor 1001, a memory 1002, and a program or an instruction stored in the memory 1002 and executable on the processor 1001, for example, when the communication device 1000 is a terminal, the program or the instruction is executed by the processor 1001 to implement each process of the above-mentioned information feedback method embodiment, and the same technical effect can be achieved. When the communication device 1000 is a network-side device, the program or the instructions are executed by the processor 1001 to implement the processes of the above-described feedback information receiving method embodiment, and the same technical effect can be achieved.

Fig. 11 is a schematic hardware structure diagram of a terminal for implementing the embodiment of the present application.

The terminal 1100 includes, but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110, and the like.

Those skilled in the art will appreciate that terminal 1100 can also include a power supply (e.g., a battery) for powering the various components, which can be logically coupled to processor 1110 via a power management system to facilitate managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 1104 may include a Graphics Processing Unit (GPU) 11041 and a microphone 11042, and the Graphics processor 11041 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes a touch panel 11071 and other input devices 11072. A touch panel 11071, also called a touch screen. The touch panel 11071 may include two portions of a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 1101 receives downlink data from a network side device and then processes the downlink data to the processor 1110; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1109 may be used for storing software programs or instructions as well as various data. The memory 1109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1109 may include a high-speed random access Memory and may also include a nonvolatile Memory, which may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1110 may include one or more processing units; alternatively, processor 1110 may integrate an application processor that primarily handles operating systems, user interfaces, and applications or instructions, etc. and a modem processor that primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 1110.

The processor 1110 is configured to obtain decoding statuses of one or more downlink channels, where the one or more downlink channels are downlink channels that need to be fed back in one time unit of the terminal;

a radio frequency unit 1101, configured to send first feedback information or not send feedback information in the time unit if it is determined that the ratio of the one or more downlink channels that are not decoded correctly is smaller than or equal to a first threshold according to the decoding state, where the first feedback information includes one piece of acknowledgement information or feedback information of each downlink channel in the one or more downlink channels, and a value range of the first threshold is [0,1 ].

Optionally, the radio frequency unit 1101 is further configured to send second feedback information in the time unit if it is determined, according to the decoding state, that the ratio of the one or more downlink channels that are not decoded correctly is greater than the first threshold, where the second feedback information includes one piece of non-acknowledgement information or feedback information of each downlink channel in the one or more downlink channels.

Optionally, the radio frequency unit 1101 sends first feedback information, including: the first feedback information is transmitted on a PUCCH or transmitted on a PUSCH.

Optionally, the radio frequency unit 1101 sends the first feedback information on a PUCCH, including: transmitting the first feedback information on a PUCCH, wherein the first feedback information comprises acknowledgement information; alternatively, the first and second electrodes may be,

the radio frequency unit 1101 transmits the first feedback information on a PUSCH, including: transmitting the first feedback information on a PUSCH, wherein the first feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

Optionally, the sending, by the radio frequency unit 1101, the second feedback information includes:

Optionally, the radio frequency unit 1101 sends the second feedback information on a PUCCH, including: transmitting the second feedback information on a PUCCH, wherein the second feedback information comprises one piece of non-acknowledgement information; alternatively, the first and second electrodes may be,

the radio frequency unit 1101 sends the second feedback information on a PUSCH, including: transmitting the second feedback information on a PUSCH, wherein the second feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

Optionally, the radio frequency unit 1101 sends the first feedback information on a PUCCH, including: if the first feedback information comprises acknowledgement information, sending the first feedback information on a first PUCCH resource, and if the first feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the first feedback information on a second PUCCH resource; alternatively, the first and second electrodes may be,

the radio frequency unit 1101 transmits the second feedback information on a PUCCH, including: and if the second feedback information comprises non-acknowledgement information, sending the second feedback information on a third PUCCH resource, and if the second feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the second feedback information on a second PUCCH resource.

Optionally, the radio frequency unit 1101 is further configured to send feedback information of each downlink channel in the one or more downlink channels in the time unit if the first threshold is 1, if the ratio of the one or more downlink channels that are not decoded correctly is smaller than the first threshold, and send a piece of non-acknowledgement information or no feedback information in the time unit if the ratio of the one or more downlink channels that are not decoded correctly is equal to the first threshold.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 12, the network device 1200 includes: antenna 1201, radio frequency device 1202, baseband device 1203. Antenna 1201 is connected to radio frequency device 1202. In the uplink direction, the rf device 1202 receives information through the antenna 1201 and sends the received information to the baseband device 1203 for processing. In the downlink direction, the baseband device 1203 processes information to be transmitted and transmits the processed information to the radio frequency device 1202, and the radio frequency device 1202 processes the received information and transmits the processed information through the antenna 1201.

The above band processing means may be located in the baseband apparatus 1203, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 1203, where the baseband apparatus 1203 includes a processor 1204 and a memory 1205.

The baseband apparatus 1203 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 12, where one chip is, for example, a processor 1204, and is connected to the memory 1205 to call up a program in the memory 1205 to perform the network side device operation shown in the above method embodiment.

The baseband apparatus 1203 may further include a network interface 1206 for exchanging information with the radio frequency apparatus 1202, such as a Common Public Radio Interface (CPRI).

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 1205 and executable on the processor 1204, the processor 1204 invokes the instructions or programs in the memory 1205 to execute the method executed by each module shown in fig. 9, and achieve the same technical effect, which is not described herein for avoiding repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and the program or the instruction, when executed by a processor, implements each process of the above-mentioned information feedback method embodiment, or implements each process of the above-mentioned feedback information receiving method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction to implement each process of the above feedback information receiving method embodiment, or the processor is configured to run a terminal program or an instruction to implement each process of the above information feedback method embodiment and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

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. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

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 application 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 application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An information feedback method, characterized in that the method comprises:

a terminal acquires the decoding states of one or more downlink channels, wherein the one or more downlink channels are downlink channels which need to be fed back in a time unit of the terminal;

and if the ratio that the one or more downlink channels are not correctly decoded is determined to be smaller than or equal to a first threshold value according to the decoding state, sending first feedback information or not sending feedback information in the time unit, wherein the first feedback information comprises acknowledgement information or feedback information of each downlink channel in the one or more downlink channels, and the value range of the first threshold value is [0,1 ].

2. The method of claim 1, further comprising:

and if the ratio of the one or more downlink channels which are not decoded correctly is determined to be greater than the first threshold value according to the decoding state, sending second feedback information in the time unit, wherein the second feedback information comprises one piece of non-acknowledgement information or feedback information of each downlink channel in the one or more downlink channels.

3. The method of claim 2, wherein the one or more downlink channels are not decoded correctly, comprising:

and judging that a first downlink channel in the one or more downlink channels is not detected through a Downlink Assignment Indication (DAI).

4. The method of claim 2, wherein the one or more downlink channels comprise: a Physical Downlink Shared Channel (PDSCH) and/or a Physical Downlink Control Channel (PDCCH).

5. The method of claim 4, wherein the decoding of the SPS PDSCH is not incorrectly decoded if the SPS PDSCH in the one or more downlink channels does not require decoding due to a resource conflict.

6. The method of claim 4, wherein the decoding of the SPS PDSCH is incorrectly decoded if the SPS PDSCH in the one or more downlink channels is canceled by control information.

7. The method of claim 4, wherein the decoding of the SPS PDSCH is of a correct decoding if the SPS PDSCH in the one or more downlink channels is canceled by control information.

8. The method of claim 2, wherein sending the first feedback information comprises: and sending the first feedback information on a Physical Uplink Control Channel (PUCCH) or sending the first feedback information on a PUSCH.

9. The method of claim 8,

transmitting the first feedback information on a PUCCH, comprising: transmitting the first feedback information on a PUCCH, wherein the first feedback information comprises acknowledgement information; alternatively, the first and second electrodes may be,

transmitting the first feedback information on a PUSCH, comprising: transmitting the first feedback information on a PUSCH, wherein the first feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

10. The method of claim 2, wherein sending the second feedback information comprises:

11. The method of claim 10,

transmitting the second feedback information on a PUCCH, comprising: transmitting the second feedback information on a PUCCH, wherein the second feedback information comprises one piece of non-acknowledgement information; alternatively, the first and second electrodes may be,

transmitting the second feedback information on a PUSCH, comprising: transmitting the second feedback information on a PUSCH, wherein the second feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

12. The method according to claim 8 or 10,

transmitting the first feedback information on a PUCCH, comprising: if the first feedback information comprises acknowledgement information, sending the first feedback information on a first PUCCH resource, and if the first feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the first feedback information on a second PUCCH resource; alternatively, the first and second electrodes may be,

transmitting the second feedback information on a PUCCH, comprising: and if the second feedback information comprises non-acknowledgement information, sending the second feedback information on a third PUCCH resource, and if the second feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the second feedback information on the second PUCCH resource.

13. The method according to any one of claims 1 to 11, further comprising:

if the first threshold is 1, sending feedback information of each downlink channel in the one or more downlink channels in the time unit if the ratio of the one or more downlink channels which are not decoded correctly is smaller than the first threshold, and sending a piece of non-acknowledgement information or not sending the feedback information in the time unit if the ratio of the one or more downlink channels which are not decoded correctly is equal to the first threshold.

14. A method for receiving feedback information, the method comprising:

the method comprises the steps that a network side device detects feedback information transmitted by a terminal on a target uplink channel, wherein the feedback information is feedback of the terminal aiming at one or more downlink channels fed back by an indication in a time unit;

if the detected feedback information comprises acknowledgement information or no feedback information is detected, determining that the ratio of the one or more downlink channel transmission failures is less than or equal to a first threshold, wherein the value range of the first threshold is [0,1 ].

15. The method of claim 14, further comprising:

if the detected feedback information comprises a piece of non-confirmation information, determining that the ratio of the transmission failures of the one or more downlink channels is greater than the first threshold value; alternatively, the first and second electrodes may be,

and if the detected feedback information comprises a plurality of target feedback information, determining whether the corresponding downlink channel is successfully transmitted according to the value of each target feedback information, wherein the target feedback information comprises acknowledgement information and/or non-acknowledgement information.

16. The method of claim 14, wherein detecting the feedback information transmitted by the terminal on the target uplink channel comprises:

detecting the feedback information on PUCCH and/or PUSCH.

17. The method according to any one of claims 14 to 16, further comprising:

if the first threshold is 1 and the detected feedback information includes one piece of non-acknowledgement information or no detected feedback information, determining that all transmission of the one or more downlink channels fails.

18. An information feedback apparatus, comprising:

an obtaining module, configured to obtain decoding statuses of one or more downlink channels, where the one or more downlink channels are downlink channels that need to be fed back within a time unit of the terminal;

a transmission module, configured to send first feedback information or not send feedback information in the time unit when it is determined that a ratio of incorrect decoding of the one or more downlink channels is smaller than or equal to a first threshold according to the decoding state, where the first feedback information includes one piece of acknowledgement information or feedback information of each downlink channel in the one or more downlink channels, and a value range of the first threshold is [0,1 ].

19. The apparatus of claim 18, wherein the transmission module is further configured to:

20. The apparatus of claim 19, wherein the one or more downlink channels are not decoded correctly, comprising:

and judging that the first downlink channel in the one or more downlink channels is not detected through the DAI.

21. The apparatus of claim 19, wherein the one or more downlink channels comprise: a Physical Downlink Shared Channel (PDSCH) and/or a Physical Downlink Control Channel (PDCCH).

22. The apparatus of claim 21, wherein the decoding of the SPS PDSCH in the one or more downlink channels is not incorrectly decoded if the SPS PDSCH does not require decoding due to resource collision.

23. The apparatus of claim 21, wherein the decoding of the SPS PDSCH is not decoded correctly if the SPS PDSCH in the one or more downlink channels is canceled by downlink control information.

24. The apparatus of claim 21, wherein the decoding of the SPS PDSCH belongs to correct decoding if the SPS PDSCH in the one or more downlink channels is canceled by downlink control information.

25. The apparatus of claim 19, wherein the transmission module sends the first feedback information, comprising: the first feedback information is transmitted on a PUCCH or transmitted on a PUSCH.

26. The apparatus of claim 25,

the transmission module transmits the first feedback information on a PUCCH, including: transmitting the first feedback information on a PUCCH, wherein the first feedback information comprises acknowledgement information; alternatively, the first and second electrodes may be,

the transmission module sends the first feedback information on a PUSCH, including: transmitting the first feedback information on a PUSCH, wherein the first feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

27. The apparatus of claim 19, wherein the transmission module sends the second feedback information, and wherein the transmission module comprises:

28. The apparatus of claim 27,

the transmission module transmits the second feedback information on a PUCCH, including: transmitting the second feedback information on a PUCCH, wherein the second feedback information comprises one piece of non-acknowledgement information; alternatively, the first and second electrodes may be,

the transmission module sends the second feedback information on a PUSCH, including: transmitting the second feedback information on a PUSCH, wherein the second feedback information comprises feedback information of each downlink channel of the one or more downlink channels.

29. The apparatus of claim 25 or 27,

the transmission module transmits the first feedback information on a PUCCH, including: if the first feedback information comprises acknowledgement information, sending the first feedback information on a first PUCCH resource, and if the first feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the first feedback information on a second PUCCH resource; alternatively, the first and second electrodes may be,

the transmission module transmits the second feedback information on a PUCCH, including: and if the second feedback information comprises non-acknowledgement information, sending the second feedback information on a third PUCCH resource, and if the second feedback information comprises feedback information of each downlink channel in the one or more downlink channels, sending the second feedback information on the second PUCCH resource.

30. The apparatus of any one of claims 19 to 29,

the transmission module is further configured to send feedback information of each downlink channel in the one or more downlink channels in the time unit if the first threshold is 1, if the ratio of the one or more downlink channels that are not decoded correctly is smaller than the first threshold, and send a piece of non-acknowledgement information or no feedback information in the time unit if the ratio of the one or more downlink channels that are not decoded correctly is equal to the first threshold.

31. A feedback information receiving apparatus, comprising:

the system comprises a detection module, a feedback module and a feedback module, wherein the detection module is used for detecting feedback information transmitted by a terminal on a target uplink channel, and the feedback information is the feedback of the terminal aiming at one or more downlink channels which indicate feedback in a time unit;

a determining module, configured to determine that a ratio of the one or more downlink channel transmission failures is less than or equal to a first threshold when the detected feedback information includes an acknowledgment information or the feedback information is not detected, where a value range of the first threshold is [0,1 ].

32. The apparatus of claim 31, wherein the determining module is further configured to:

33. The apparatus of claim 31, wherein the detecting module detects feedback information transmitted by the terminal on a target uplink channel, and comprises:

detecting the feedback information on PUCCH and/or PUSCH.

34. The apparatus of any one of claims 31 to 33, wherein the determining module is further configured to:

if the first threshold is 1 and the detected feedback information includes one piece of non-acknowledgement information or undetected feedback information, determining that all transmissions of the one or more downlink channels fail.

35. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the information feedback method of any one of claims 1 to 13.

36. A network-side device, comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the feedback information receiving method according to any one of claims 14 to 17.

37. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions which, when executed by the processor, implements the information feedback method of any one of claims 1-13 or the steps of the feedback information receiving method of any one of claims 14 to 17.