CN112929138A

CN112929138A - Codebook sending method, codebook receiving method, terminal and network equipment

Info

Publication number: CN112929138A
Application number: CN201911245259.1A
Authority: CN
Inventors: 曾超君
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2021-06-08
Anticipated expiration: 2039-12-06
Also published as: CN112929138B

Abstract

The embodiment of the invention provides a codebook sending method, a codebook receiving method, a terminal and network equipment, wherein the sending method comprises the following steps: transmitting the HARQ-ACK codebook to the network equipment; the HARQ-ACK codebook includes: first feedback bit information of the first HARQ process and first NDI information located after the first feedback bit information; the first HARQ process corresponds to at least two TBs, the first feedback bit information is obtained by performing a first preset operation on HARQ-ACK bit information of the at least two TBs, and the first NDI information is determined according to NDI information of at least one of the at least two TBs. The embodiment of the invention can ensure the correct construction and transmission of the HARQ-ACK codebook under the condition that NDI information of at least two TBs exists, thereby ensuring normal HARQ-ACK feedback and data transmission.

Description

Codebook sending method, codebook receiving method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a codebook sending method, a codebook receiving method, a terminal, and a network device.

Background

In the prior art, for a one-shot (one-shot) hybrid automatic Repeat reQuest-acknowledge (HARQ-ACK) codebook, if New Data Indicator (NDI) information of a codeword is configured to be received and reported by two largest downlink codewords and Spatial Bundling (Spatial Bundling) is started, the NDI information of each codeword needs to be included in the one-shot HARQ-ACK codebook. However, in the case where there is NDI information for two codewords, it is not clear how to incorporate it into the corresponding HARQ-ACK codebook.

Disclosure of Invention

Embodiments of the present invention provide a codebook sending method, a codebook receiving method, a terminal and a network device, so as to solve a problem that how to incorporate the NDI information of two codewords into a corresponding HARQ-ACK codebook is not clear at present.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a codebook sending method, which is applied to a terminal, and includes:

transmitting the HARQ-ACK codebook to the network equipment;

wherein the HARQ-ACK codebook comprises: first feedback bit information of a first HARQ process and first NDI information located after the first feedback bit information;

the first HARQ process corresponds to at least two TBs, the first feedback bit information is obtained by performing a first preset operation on HARQ-ACK bit information of the at least two TBs, and the first NDI information is determined according to NDI information of at least one of the at least two TBs.

In a second aspect, an embodiment of the present invention provides a codebook receiving method, applied to a network device, including:

receiving a HARQ-ACK codebook from a terminal;

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

a sending module, configured to send an HARQ-ACK codebook to a network device;

In a fourth aspect, an embodiment of the present invention provides a network device, including:

a receiving module, configured to receive an HARQ-ACK codebook from a terminal;

In a fifth aspect, an embodiment of the present invention provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the computer program, when executed by the processor, may implement the steps of the codebook transmitting method or the steps of the codebook receiving method.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the steps of the above codebook transmitting method or implement the steps of the above codebook receiving method.

In the embodiment of the present invention, a terminal may send a HARQ-ACK codebook to a network device, where the HARQ-ACK codebook includes first feedback bit information of a first HARQ process and first NDI information located after the first feedback bit information, the first HARQ process corresponds to at least two TBs, and the first NDI information is determined according to the NDI information of at least one of the at least two TBs, so that correct construction and transmission of the HARQ-ACK codebook may be ensured under the condition that the NDI information of the at least two TBs exists, thereby ensuring normal HARQ-ACK feedback and data transmission.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1A is a diagram illustrating NDI information under normal conditions in an embodiment of the invention;

fig. 1B is a schematic diagram of NDI information in the case of DCI missing detection in the embodiment of the present invention;

FIG. 2 is a flowchart of a codebook transmission method according to an embodiment of the present invention;

FIG. 3 is a flowchart of a codebook receiving method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 6 is a second schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 7 is a second schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

The wireless communication system of the embodiment of the invention comprises a terminal and network equipment. The terminal may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 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), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and a specific type of the terminal is not limited in the embodiment of the present invention. The network device may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), and the Base Station may be referred to as a node B, an enodeb, 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 home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, and is not limited to a specific terminology as long as the same technical effect is achieved.

In the embodiment of the invention, the HARQ-ACK codebook can be selected as a one-shot HARQ-ACK codebook (codebook). The HARQ-ACK codebook may also be referred to as a HARQ-ACK feedback codebook.

In order to ensure that the terminal and the network device completely agree with each other about the understanding of the HARQ-ACK codebook bit number and feed back the HARQ-ACK information of all configured HARQ processes, a one-shot HARQ-ACK codebook feedback mechanism may be introduced in this embodiment, and the one-shot HARQ-ACK codebook feedback mechanism feeds back the HARQ-ACK information for each possible codeword of all configured HARQ processes on all carriers currently configured for the terminal. In order to ensure that the terminal and the network device understand the same for the transmission of the Physical Downlink Shared Channel (PDSCH) corresponding to the fed-back HARQ-ACK bit and avoid the problem of ambiguity of understanding caused by missed detection of Downlink Control Information (DCI), the one-shot HARQ-ACK codebook may further include the NDI of each codeword (if a certain codeword of a certain HARQ process is not scheduled all the time, it may be assumed that the corresponding NDI is equal to 0), but may be configured by the network device.

It should be noted that the downlink scheduling DCI may carry an NDI, where the NDI is used to identify whether high-level data carried on a Transport Block (TB) of the PDSCH transmission scheduled by the DCI changes. When the NDI is turned over, the high-level data corresponding to the bearer changes, i.e., corresponding to new data transmission. When the dual codeword transmission is turned on, each TB independently indicates a corresponding NDI.

The NDI is carried in a one-shot HARQ-ACK codebook, so that the following problems are mainly solved: for a certain HARQ process, the nth PDSCH transmission (NDI (N) ═ V1) is successfully decoded and an ACK is fed back (e.g., D1 transmission in fig. 1A; N1 and N2 are respectively values of NDI bits corresponding to the first TB and the second TB carried by D1 transmission, a in the figure represents ACK), and NDI is flipped (NDI (N +1) ═ V2, V2 is flipped with respect to V1, e.g., D2 transmission in normal case in fig. 1A, with respect to D1 transmission, N1 or N2 is changed from 0 to 1, i.e., flipping occurs) to transmit new data in the N +1 scheduling. However, if the scheduling DCI (i.e., the scheduling DCI transmitted by the nth +1 PDSCH) is missed by the UE, the corresponding HARQ-ACK will not be fed back normally, and when the HARQ-ACK information of the HARQ process is fed back in the one-shot HARQ-ACK codebook, the UE feeds back the HARQ-ACK corresponding to the nth PDSCH transmission of the HARQ process according to the information obtained by the UE. At this time, if the one-shot HARQ-ACK codebook does not include the NDI, the network device does not determine whether the UE missed the scheduling DCI for the (n +1) th PDSCH transmission, and considers that the received ACK information is for the (n +1) th PDSCH transmission of the scheduling, and at this time, the terminal and the network device understand inconsistency for the state of data transmission (ideally, if the UE missed the DCI, the network device treats the corresponding PDSCH transmission as NACK feedback). When the one-shot HARQ-ACK codebook includes the NDI, the UE may determine that the UE has missed the scheduling DCI for the (N +1) th PDSCH transmission in response to the feedback of the ACK and the NDI being equal to V1 for the HARQ process (for example, in the case of DCI missed detection in fig. 1B, in the one-shot HARQ-ACK codebook reported by the UE after D2 transmission, N1 or N2 is reported as 0 for the current HARQ process, and HARQ-ACK states of both codewords are ACK, the network device determines that the scheduling DCI with the setting of N1 or N2 set to 1 is missed detected by the UE, the UE does not actually receive and decode the D2 transmission, and the HARQ-ACK reported for the current HARQ process in the one-shot HARQ-ACK codebook actually aims at D1 transmission, and at this time, the network device may indicate again that the NDI is flipped in the scheduling DCI transmitted by D3 to notify new data transmission).

It can be understood that, by including the NDI in the one-shot HARQ-ACK codebook, when the NDI is flipped, the network device may detect a situation of missed detection of the scheduling DCI, and accordingly determine a receiving situation of the PDSCH and a PDSCH transmission targeted by the HARQ-ACK (when the NDI is not flipped and the UE misses the DCI, the HARQ-ACK corresponding to the HARQ process (or transport block) generally keeps NACK unchanged, and at this time, although the network device cannot determine that the DCI missed detection occurs on the UE side based on the NDI reported by the UE, the data transmission performance is not affected).

In the embodiment of the present invention, when the data size of a single TB is large, in order to facilitate coding and decoding, based on a coding rule in Long Term Evolution (LTE) or New Radio (NR), data of the TB may be first truncated to form a plurality of Code Blocks (CBs), and then each CB is coded. When the number of CBs split by a single TB is large, the data of each CB is mapped to different time frequency resources. Since the channel fading and interference conditions experienced by different CBs during transmission may be different, it often happens that some CBs are successfully decoded, some CBs are failed to be decoded, and the whole TB needs to continue to perform HARQ retransmission. In this case, in order to avoid retransmitting CBs that have been successfully transmitted, HARQ-ACK feedback and retransmission based on CB groups (CBGs) may be introduced, that is, all CBs corresponding to a single TB are divided into a plurality of CB groups based on a predefined rule, and HARQ-ACK is fed back for each CBG (this is only for downlink transmission, and the UE feeds back HARQ-ACK to the network device) and retransmission is scheduled.

In an application scenario, the embodiment of the present invention may configure reception of two largest downlink codewords for a terminal carrier, for example, set a value of a configuration parameter maxnrofcodewordsscheduled bydci to 2, and start Spatial Bundling (Spatial Bundling), for example, configure a parameter harq-ACK-Spatial Bundling pucch or harq-ACK-Spatial Bundling pusch for the terminal.

It can be understood that a codeword is a concept used when a physical layer transmits data through a radio channel, and a TB is a concept used when the physical layer receives a protocol data unit PDU of a MAC and encodes the PDU and the like for transmission on the radio channel, where the codeword and the TB may correspond to each other, and the TB and the MAC PDU may correspond to each other. Typically, when a terminal is configured with a maximum of two codeword receptions, a single scheduling DCI may simultaneously schedule two codewords, or two transport blocks, and may set independent scheduling information, e.g., NDI information, for each transport block, typically corresponding to a single NDI bit. Generally, when a single scheduling DCI schedules two codewords or two transport blocks simultaneously, codeword 0 corresponds to a first scheduled TB and codeword 1 corresponds to a second scheduled TB. When a single scheduling DCI actually schedules only a single transport block, this single transport block corresponds to codeword 0.

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a codebook sending method according to an embodiment of the present invention, where the method is applied to a terminal. As shown in fig. 2, the method comprises the steps of:

step 201: and transmitting the HARQ-ACK codebook to the network equipment.

In this embodiment, the HARQ-ACK codebook sent in this step may be selected as a one-shot HARQ-ACK codebook, and may include: first feedback bit information of a first HARQ process and first NDI information located after the first feedback bit information. The transmission of the HARQ-ACK codebook may be triggered by DCI or determined by the terminal.

Wherein the first HARQ process corresponds to at least two TBs. In one embodiment, when two downlink maximum codeword receptions are configured, the first HARQ process corresponds to two TBs, which may also be referred to as a first HARQ process corresponding to two codewords. The first HARQ process may be any HARQ process in a set of downlink HARQ processes configured for the terminal by the network on a certain carrier.

The first feedback bit information may be obtained by performing a first preset operation on HARQ-ACK bit information of at least two TBs, that is, by performing a first preset operation on at least two HARQ-ACK bit information (including HARQ-ACK bit information corresponding to each TB). Optionally, the first preset operation includes but is not limited to: binary and operation. Alternatively, each TB corresponds to a single HARQ-ACK bit, respectively. Optionally, a value of 0 for the HARQ-ACK bit indicates NACK, and a value of 1 indicates ACK. Binary and operations can be understood as: if the values of the two HARQ-ACK bits are 0 and 0, or 0 and 1, or 1 and 0, respectively, the value of the corresponding first feedback bit is 0; and if the values of the two HARQ-ACK bits are 1 and 1 respectively, the value of the corresponding first feedback bit is 1.

The first NDI information may be determined according to NDI information of at least one of at least two TBs. Note that the NDI information for each TB may correspond to a single NDI bit. The value of the single NDI bit corresponding to each TB may be the last NDI value indicated by the scheduling DCI for the corresponding TB of the HARQ process.

According to the codebook sending method provided by the embodiment of the invention, the terminal can send the HARQ-ACK codebook to the network equipment, so that the correct construction and transmission of the HARQ-ACK codebook can be ensured under the condition that NDI information of at least two TBs exists, and the normal HARQ-ACK feedback and data transmission can be ensured.

In an embodiment of the present invention, the first NDI information may be determined at least in the following manner, which is described in detail below.

In a first mode

In this way, the first NDI information includes: NDI information of at least two TBs arranged in sequence, i.e., NDI information of each TB arranged in sequence. The NDI information of each TB may correspond to a single NDI bit. The value of the single NDI bit corresponding to each TB may be set to the NDI value indicated for the corresponding TB in the last scheduling DCI detected for this HARQ process.

In this way, by means of the first method, all involved NDI information can be simply and completely carried in the corresponding HARQ-ACK codebook, thereby avoiding the loss of information.

In one embodiment, taking an example that a certain HARQ process (e.g. HARQ process 1) corresponds to two TBs, i.e. a first TB and a second TB, the feedback bit sequence (i.e. HARQ-ACK codebook) of the HARQ process 1 may be: a single HARQ-ACK feedback bit + NDI bit of the first TB + NDI bit of the second TB. Wherein "+" indicates that bits are concatenated to form a bit sequence, that is, the NDI bit of the first TB and the NDI bit of the second TB are sequentially placed after the single HARQ-ACK feedback bit to form a bit sequence. Alternatively, when CBG-based HARQ-ACK feedback and retransmission are not considered, the single HARQ-ACK feedback bit may be a single "binary and bit" obtained by performing a binary and operation on the HARQ-ACK bit of the first TB and the HARQ-ACK bit of the second TB. When considering the CBG-based HARQ-ACK feedback and retransmission, a typical processing method is to no longer consider the switch configuration of the Spatial Bundling, for example, neglect the setting whether the Spatial Bundling is turned on, and do not actually perform the Spatial Bundling between the HARQ-ACK information bits of two TBs, that is, regardless of the binary and operation, place a single NDI bit corresponding to each TB after the bit sequence formed by the HARQ-ACK information bits corresponding to each CBG of the TB. Another processing manner is still considering the Spatial Bundling switch configuration, when the Spatial Bundling is configured, performing a correlation operation (for example, binary and operation) on HARQ-ACK bits of each CBG corresponding to two TBs to obtain feedback bits corresponding to each CBG, and forming a CBG feedback bit sequence based on an index of the CBG, where a feedback bit sequence (that is, an HARQ-ACK codebook) of a certain HARQ process may be: CBG feedback bit sequence + NDI bit of first TB + NDI bit of second TB.

In another embodiment, the following pseudo code may be referred to construct a feedback bit sequence for a certain HARQ process. Wherein j is an index of each feedback bit in the feedback bit sequence, and the initial value of j may be set to be 0 (i.e. j is used as a local bit index in the feedback bit sequence for the current HARQ process), or the initial value of j is set to be an index of a first bit of the feedback bit sequence of the current HARQ process in an HARQ-ACK codebook fed back by the terminal (i.e. j is used as a global bit index in a bit sequence corresponding to the HARQ-ACK codebook fed back by the terminal);

taking the value of the feedback bit with the index j in the feedback bit sequence;

the value of parameter maxNrofCodeWordsSchedulByDCI configured for the serving cell c of the terminal indicates the maximum number of code words or TBs which can be simultaneously scheduled by each scheduling DCI on the serving cell; t is a loop variable for the TB indicating the TB index in a certain active loop operation.

Mode two

In this manner, the first NDI information is: NDI information of any one of the at least two TBs. And the NDI information of each TB may correspond to a single NDI bit. The NDI information of which TB is specifically selected as the first NDI information may be specified by a protocol or configured by a higher layer parameter.

In this way, by only selecting the NDI information of a single TB to be included in the corresponding HARQ-ACK codebook, the feedback overhead can be saved compared with the first mode. At this time, the DCI missing detection situation is judged through the selected NDI of the single TB, and the PDSCH transmission corresponding to the HARQ-ACK feedback is determined, although there may be a certain degree of information loss, the feedback overhead may be saved. For example, for a certain scheduling DCI, if the NDI of the selected TB is not inverted, but the NDI of another TB is inverted, even if the scheduling DCI is missed by the UE, the network device cannot identify the DCI missing situation based on the reported NDI of the selected TB. And if the NDI of the two TBs is more synchronous, or the NDI of the selected TB is more frequently overturned, the performance loss is less.

In one embodiment, taking an example that a certain HARQ process (e.g. HARQ process 2) corresponds to two TBs, i.e. a first TB and a second TB, the feedback bit sequence (i.e. HARQ-ACK codebook) of the HARQ process 2 may be: single HARQ-ACK feedback bit + NDI bit of first TB; or, a single HARQ-ACK feedback bit + the NDI bit of the second TB. Wherein "+" indicates that bits are concatenated to form a bit sequence, that is, the NDI bit of the first TB or the NDI bit of the second TB is placed after the single HARQ-ACK feedback bit to form a bit sequence. Alternatively, when CBG-based HARQ-ACK feedback and retransmission are not considered, the single HARQ-ACK feedback bit may be a single "binary and bit" obtained by performing a binary and operation on the HARQ-ACK bit of the first TB and the HARQ-ACK bit of the second TB. When considering the CBG-based HARQ-ACK feedback and retransmission, a typical processing method is to no longer consider the switch configuration of the Spatial Bundling, for example, neglect the setting whether the Spatial Bundling is turned on, and do not actually perform the Spatial Bundling between the HARQ-ACK information bits of two TBs, that is, regardless of the binary and operation, place a single NDI bit corresponding to each TB after the bit sequence formed by the HARQ-ACK information bits corresponding to each CBG of the TB. Another processing manner is still considering the Spatial Bundling switch configuration, when the Spatial Bundling is configured, performing a correlation operation (for example, binary and operation) on HARQ-ACK bits of each CBG corresponding to two TBs to obtain feedback bits corresponding to each CBG, and forming a CBG feedback bit sequence based on an index of the CBG, where a feedback bit sequence (that is, an HARQ-ACK codebook) of a certain HARQ process may be: CBG feedback bit sequence + NDI bit of first TB; alternatively, CBG feedback bit sequence + NDI bit of the second TB.

Mode III

In this manner, the first NDI information may be obtained by performing a second preset operation on the NDI information of at least two TBs, that is, by comprehensively processing the NDI information of each TB. The NDI information of each TB may correspond to a single NDI bit. The first NDI information may be a single NDI bit.

Optionally, the second preset operation may include, but is not limited to, any one of the following: binary and operation, binary or operation, binary xor operation. Different operations may correspond to different scenarios of the relevance or value relationship of the NDI information of different TBs. For example, if NDI flips of different TBs are more synchronous, a logical and operation may be employed; while if not synchronized, a logical xor operation may be used (with only one NDI change, the xor result will change). Optionally, based on whether the last NDI value of each TB of a certain HARQ process is flipped with respect to the penultimate NDI value, the corresponding flipping indication of each TB may be processed correspondingly, so as to obtain the first NDI information. Here, the last NDI value of each TB of a certain HARQ process may be an NDI indicated for a corresponding TB in the last scheduling DCI detected by the UE for the HARQ process, and the corresponding penultimate NDI value is indicated by the penultimate scheduling DCI detected by the UE for the HARQ process.

Therefore, compared with the first mode and the second mode, the method and the device can not only completely bear all related NDI information in the corresponding HARQ-ACK codebook, avoid information loss, but also save feedback overhead.

Referring to fig. 3, fig. 3 is a flowchart of a codebook receiving method according to an embodiment of the present invention, where the method is applied to a network device. As shown in fig. 3, the method comprises the steps of:

step 301: a HARQ-ACK codebook is received from a terminal.

In this embodiment, the HARQ-ACK codebook received in this step may be selected as a one-shot HARQ-ACK codebook, and may include: first feedback bit information of a first HARQ process and first NDI information located after the first feedback bit information.

Wherein the first HARQ process corresponds to at least two TBs. In one embodiment, when downlink maximum two codeword reception is configured and Spatial Bundling is turned on, the first HARQ process corresponds to two TBs, which may also be referred to as a first HARQ process corresponding to two codewords.

The first feedback bit information may be obtained by performing a first preset operation on HARQ-ACK bit information of at least two TBs, that is, by performing a first preset operation on at least two HARQ-ACK bit information (including HARQ-ACK bit information corresponding to each TB). Optionally, the first preset operation includes but is not limited to: binary and operation.

The first NDI information may be determined according to NDI information of at least one of at least two TBs. Note that the NDI information for each TB may correspond to a single NDI bit.

After receiving the HARQ-ACK codebook, the network device may determine whether DCI missing detection exists at the UE side based on the first NDI information for a certain HARQ process in the HARQ-ACK codebook, so as to determine PDSCH transmission corresponding to HARQ-ACK feedback bits carried in the HARQ-ACK codebook. Optionally, when the first NDI information for a certain HARQ process in the HARQ-ACK codebook completely coincides with the value of the NDI information expected by the network device, the network device may determine that there is no DCI missing for the HARQ process on the UE side.

The codebook receiving method of the embodiment of the invention can ensure the correct construction and transmission of the HARQ-ACK codebook under the condition that NDI information of at least two TBs exists, thereby ensuring normal HARQ-ACK feedback and data transmission.

Optionally, the first NDI information includes: NDI information of the at least two TBs arranged in sequence. Alternatively, if each HARQ process corresponds to two TBs, for a certain HARQ process, the NDI bit corresponding to the first TB of the HARQ process in the received HARQ-ACK codebook indicates V11, the NDI bit corresponding to the second TB of the HARQ process indicates V12, and the network side expects the NDI bit values corresponding to the first TB and the second TB of the HARQ process to be V21 and V22, respectively, based on its scheduling condition (i.e., the NDI indications corresponding to the first TB and the second TB in the last scheduling DCI for the HARQ process by the network device are V21 and V22, respectively), the network device may determine that DCI missing detection does not occur at the UE for the HARQ process only when V11 and V21 are equal and V12 and V22 are equal, otherwise the network device may determine that DCI missing detection occurs at the UE for the HARQ process (at least the last scheduling DCI for the HARQ process is missed detected) based on V11 and V12 (at least one last scheduling DCI detected for the HARQ process is determined by the network device (i) for the UE The DCI schedules the HARQ process, and NDIs indicated for the first TB and the second TB are V11 and V12, respectively) and related scheduling information, and determines that other scheduling DCI transmitted further for the HARQ process is missed by the UE after the scheduling DCI.

Optionally, the first NDI information is: NDI information of any one of the at least two TBs.

Optionally, the first NDI information is obtained by performing a second preset operation on the NDI information of the two TBs.

Optionally, the preset operation includes any one of: binary and operation, binary or operation, binary xor operation.

The above embodiments describe the codebook transmitting method and codebook receiving method of the present invention, and the terminal and the network device of the present invention are described below with reference to the embodiments and the drawings.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 4, the terminal 40 includes:

a sending module 41, configured to send an HARQ-ACK codebook to a network device;

Optionally, the first preset operation includes: binary and operation.

Optionally, the first NDI information includes: NDI information of the at least two TBs arranged in sequence.

The terminal 40 in the embodiment of the present invention may implement each process implemented in the method embodiment shown in fig. 2 and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention, and as shown in fig. 5, the network device 50 includes:

a receiving module 51, configured to receive an HARQ-ACK codebook from a terminal;

Optionally, the first preset operation includes: binary and operation.

The network device 50 according to the embodiment of the present invention may implement each process implemented in the method embodiment shown in fig. 3 and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.

An embodiment of the present invention further provides a communication device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the method embodiments shown in fig. 2 or fig. 3, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. Alternatively, the communication device may be a terminal or a network device.

Referring to fig. 6, fig. 6 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 600 includes, but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 601 is configured to send an HARQ-ACK codebook to a network device; the HARQ-ACK codebook includes: first feedback bit information of a first HARQ process and first NDI information located after the first feedback bit information; the first HARQ process corresponds to at least two TBs, the first feedback bit information is obtained by performing a first preset operation on HARQ-ACK bit information of the at least two TBs, and the first NDI information is determined according to NDI information of at least one of the at least two TBs.

The terminal 600 of the embodiment of the present invention may implement each process implemented in the method embodiment shown in fig. 2 and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 610; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 601 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. Further, the radio frequency unit 601 may also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 602, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output as sound. Also, the audio output unit 603 can also provide audio output related to a specific function performed by the terminal 600 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.

The input unit 604 is used to receive audio or video signals. The input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics processor 6041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphic processor 6041 may be stored in the memory 609 (or other storage medium) or transmitted via the radio frequency unit 601 or the network module 602. The microphone 6042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 601 in case of the phone call mode.

The terminal 600 also includes at least one sensor 605, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 6061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 6061 and/or the backlight when the terminal 600 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 605 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 606 is used to display information input by the user or information provided to the user. The Display unit 606 may include a Display panel 6061, and the Display panel 6061 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 607 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. Touch panel 6071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 6071 using a finger, stylus, or any suitable object or accessory). The touch panel 6071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 610, receives a command from the processor 610, and executes the command. In addition, the touch panel 6071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, the other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 6071 can be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation on or near the touch panel 6071, the touch operation is transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 provides a corresponding visual output on the display panel 6061 according to the type of the touch event. Although in fig. 6, the touch panel 6071 and the display panel 6061 are two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to realize the input and output functions of the terminal, and this is not limited here.

The interface unit 608 is an interface for connecting an external device to the terminal 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 600 or may be used to transmit data between the terminal 600 and an external device.

The memory 609 may be used to store software programs as well as various data. The memory 609 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 609 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 610 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 609 and calling data stored in the memory 609, thereby performing overall monitoring of the terminal. Processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.

The terminal 600 may further include a power supply 611 (e.g., a battery) for supplying power to the various components, and preferably, the power supply 611 is logically connected to the processor 610 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the terminal 600 may further include some functional modules that are not shown, and are not described herein again.

Referring to fig. 7, fig. 7 is a schematic diagram of a hardware structure of a network device for implementing various embodiments of the present invention, where the network device 70 includes, but is not limited to: bus 71, transceiver 72, antenna 73, bus interface 74, processor 75, and memory 76.

In this embodiment of the present invention, the network device 70 further includes: a computer program stored on the memory 76 and executable on the processor 75,

optionally, the computer program when executed by the processor 75 implements the following steps:

receiving a HARQ-ACK codebook from a terminal; wherein the HARQ-ACK codebook comprises: first feedback bit information of a first HARQ process and first NDI information located after the first feedback bit information; the first HARQ process corresponds to at least two TBs, the first feedback bit information is obtained by performing a first preset operation on HARQ-ACK bit information of the at least two TBs, and the first NDI information is determined according to NDI information of at least one of the at least two TBs.

A transceiver 72 for receiving and transmitting data under the control of a processor 75.

The network device 70 according to the embodiment of the present invention may implement each process implemented in the method embodiment shown in fig. 3, and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.

In fig. 7, a bus architecture (represented by bus 71), bus 71 may include any number of interconnected buses and bridges, bus 71 linking together various circuits including one or more processors, represented by processor 75, and memory, represented by memory 76. The bus 71 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. A bus interface 74 provides an interface between the bus 71 and the transceiver 72. The transceiver 72 may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 75 is transmitted over a wireless medium via the antenna 73, and further, the antenna 73 receives the data and transmits the data to the processor 75.

The processor 75 is responsible for managing the bus 71 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory 76 may be used to store data used by the processor 75 in performing operations.

Alternatively, the processor 75 may be a CPU, ASIC, FPGA or CPLD.

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 shown in fig. 1 or fig. 3, and can achieve the same technical effect, and in order to avoid repetition, the computer program is not described herein again. The computer-readable storage medium is, for example, 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. A codebook sending method is applied to a terminal and is characterized by comprising the following steps:

transmitting a hybrid automatic repeat request-acknowledgement HARQ-ACK codebook to a network device;

wherein the HARQ-ACK codebook comprises: first feedback bit information of a first HARQ process and first New Data Indication (NDI) information located after the first feedback bit information;

the first HARQ process corresponds to at least two transport blocks, the first feedback bit information is obtained by performing a first preset operation on HARQ-ACK bit information of the at least two TBs, and the first NDI information is determined according to NDI information of at least one of the at least two TBs.

2. The method of claim 1, wherein the first NDI information comprises: NDI information of the at least two TBs arranged in sequence.

3. The method of claim 1, wherein the first NDI information is: NDI information of any one of the at least two TBs.

4. The method of claim 1, wherein the first NDI information is obtained by performing a second predetermined operation on NDI information of the at least two TBs.

5. The method according to claim 4, wherein the second preset operation comprises any one of: binary and operation, binary or operation, binary xor operation.

6. The method of claim 1, wherein the first preset operation comprises: binary and operation.

7. A codebook receiving method is applied to a network device, and is characterized by comprising the following steps:

receiving a HARQ-ACK codebook from a terminal;

8. The method of claim 7, wherein the first NDI information comprises: NDI information of the at least two TBs arranged in sequence.

9. The method of claim 7, wherein the first NDI information is: NDI information of any one of the at least two TBs.

10. The method of claim 7, wherein the first NDI information is obtained by performing a second predetermined operation on NDI information of the two TBs.

11. The method according to claim 10, wherein the second preset operation comprises any one of: binary and operation, binary or operation, binary xor operation.

12. The method of claim 7, wherein the first preset operation comprises: binary and operation.

13. A terminal, comprising:

a sending module, configured to send an HARQ-ACK codebook to a network device;

14. A network device, comprising:

a receiving module, configured to receive an HARQ-ACK codebook from a terminal;

15. A communication device comprising a memory, a processor, a computer program stored on the memory and executable on the processor, characterized in that the computer program realizes the steps of the codebook transmission method according to any of claims 1 to 6 or the steps of the codebook reception method according to any of claims 7 to 12 when executed by the processor.

16. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the codebook transmission method as defined in one of claims 1 to 6 or the steps of the codebook reception method as defined in one of claims 7 to 12.