CN112929138B

CN112929138B - Codebook sending method, codebook receiving method, terminal and network equipment

Info

Publication number: CN112929138B
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: 2023-04-25
Anticipated expiration: 2039-12-06
Also published as: CN112929138A

Abstract

The embodiment of the invention provides a codebook sending method, a codebook receiving method, a terminal and network equipment, wherein the codebook 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 the NDI information of at least two TB exists, thereby ensuring the 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-time (one-shot) hybrid automatic repeat request-acknowledgement (HybridAutomatic Repeat reQuest-ACK, HARQ-ACK) codebook, if two maximum downlink codewords are configured to receive and report new data indication (New Data Indicator, NDI) information of the codewords, and Spatial Bundling (Spatial Bundling) is started, NDI information of each codeword needs to be included in the one-shot HARQ-ACK codebook. However, in the presence of NDI information for two codewords, it is not currently clear how to incorporate it into the corresponding HARQ-ACK codebook.

Disclosure of Invention

The embodiment of the invention provides a codebook sending method, a codebook receiving method, a terminal and network equipment, which are used for solving the 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 problems, 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 an 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 capable of running on the processor, where the computer program when executed by the processor may implement the steps of the codebook sending method or implement the steps of the codebook receiving method.

In a sixth aspect, an embodiment of the present invention provides a computer readable storage medium having a computer program stored thereon, where the computer program when executed by a processor may implement the steps of the codebook transmission method or implement the steps of the codebook reception method.

In the embodiment of the invention, the terminal can send the HARQ-ACK codebook to the network equipment, wherein the HARQ-ACK codebook comprises the first feedback bit information of the first HARQ process and the first NDI information positioned after the first feedback bit information, the first HARQ process corresponds to at least two TB, the first NDI information is determined according to the NDI information of at least one of the at least two TB, and therefore, the correct construction and transmission of the HARQ-ACK codebook can be ensured under the condition that the NDI information of the at least two TB exists, and the normal HARQ-ACK feedback and data transmission are ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed 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 other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

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

fig. 1B is a schematic diagram of NDI information in the case of DCI missed detection in an 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 diagram of a network device according to an embodiment of the present invention;

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

fig. 7 is a second schematic 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), and the terminal may be a terminal-side Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (weardable Device), or a vehicle-mounted Device, which is not limited to a specific type of the terminal in the embodiment of the present invention. The network device may be a base station or a core network, where the base station may be a 5G or later version base station (e.g., a gNB, 5G NR NB, etc.), or a base station in other communication systems (e.g., an eNB, WLAN access point, or other access point, etc.), which may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (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, provided that the same technical effect is achieved, not limited to a particular technical vocabulary.

In the embodiment of the invention, the HARQ-ACK codebook can be selected as 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 in understanding the number of bits of the HARQ-ACK codebook and feed back the HARQ-ACK information of all configured HARQ processes, in this embodiment, a one-shot HARQ-ACK codebook feedback mechanism may be introduced, which feeds back the HARQ-ACK information for each possible codeword of all configured HARQ processes on all carriers currently configured by the terminal. In order to ensure that the terminal and the network device understand consistently for the physical downlink shared channel (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 the downlink control information (Downlink Control Information, DCI), the one-shot HARQ-ACK codebook may further include 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), and instead, whether the one-shot HARQ-ACK codebook includes NDI may be configured by the network device.

Note that, the downlink scheduling DCI may carry NDI, where the NDI is used to identify whether a higher layer data carried on a certain Transport Block (TB) of the PDSCH transmission scheduled by the DCI changes. When the NDI is overturned, the corresponding carried high-layer data changes, namely, the corresponding new data transmission is carried out. When dual codeword transmission is turned on, each TB indicates a corresponding NDI independently of the other.

The NDI is carried in the one-shot HARQ-ACK codebook mainly to solve the following problems: for a certain HARQ process, the nth PDSCH transmission (NDI (N) =v1) has been successfully decoded and an ACK is fed back (e.g. D1 transmission in fig. 1A; N1 and N2 are respectively the values of NDI bits corresponding to the first TB and the second TB carried by the D1 transmission, a in the figure represents ACK), and NDI is flipped (NDI (n+1) =v2, V2 is flipped with respect to V1) in the n+1th scheduling, e.g. D2 transmission in the normal case in fig. 1A, N1 or N2 is changed from 0 to 1 with respect to D1 transmission, i.e. flipped) to transmit new data. However, if the scheduling DCI (i.e., the scheduling DCI of the n+1th PDSCH transmission) 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 n-th 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 contain NDI, the network device does not determine whether the UE missed the scheduling DCI for the n+1th PDSCH transmission, and considers that the ACK information received at this time is for the n+1th PDSCH transmission of the scheduling, and the terminal and the network device are inconsistent in understanding the state of the data transmission (ideally, if the UE missed the DCI, the network device processes the corresponding PDSCH transmission as a feedback NACK). When the one-shot HARQ-ACK codebook includes NDI, the UE feeds back ACK and ndi=v1 for the HARQ process, then the network device may determine that the UE has missed the scheduled DCI for the n+1th PDSCH transmission (e.g., in the DCI missed detection case in fig. 1B, in the one-shot HARQ-ACK codebook reported by the UE after D2 transmission, N1 or N2 is reported for the current HARQ process, and both HARQ-ACK states of the two codewords are ACK, then the network device determines that the scheduled DCI with N1 or N2 set to 1 is missed by the UE, the UE does not actually receive D2 transmission and decodes, and at this time, the network device may instruct NDI to flip again in the schedule of D3 transmission to notify new data transmission, for the HARQ-ACK reported for the current HARQ process in the one-shot HARQ-ACK codebook.

It can be understood that, by including NDI in the one-shot HARQ-ACK codebook, when the NDI is flipped, the network device may detect the condition of missing the scheduled DCI, and accordingly determine the reception condition of the PDSCH and the PDSCH transmission for the HARQ-ACK (when the NDI is not flipped and the UE missing the DCI, the HARQ-ACK corresponding to the HARQ process (or the transport block) is generally kept unchanged, and at this time, although the network device cannot determine that the DCI missing occurs on the UE side based on the NDI reported by the UE, the data transmission performance will not be affected).

In the embodiment of the present invention, when the data size of a single TB is large, in order to facilitate encoding and decoding, based on the encoding rule in long term evolution (Long Term Evolution, LTE) or New Radio (NR), the data of the TB may be truncated to form a plurality of Code Blocks (CBs), and then each CB may be encoded. 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 channel fading and interference conditions experienced by different CBs during transmission may be different, it often occurs that some CBs are decoded successfully, some CBs are decoded failed, and the entire TB needs to continue to perform HARQ retransmissions. In this case, in order to avoid retransmitting CBs that have been successfully transmitted, HARQ-ACK feedback and retransmission based on a CB Group (CBG) may be introduced, i.e., 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, the UE feeds back HARQ-ACK to the network device) and retransmission is scheduled.

In an application scenario, the embodiment of the invention can configure a maximum two downlink codeword reception for a terminal carrier, for example, set the value of a configuration parameter maxnrofcodewordsschedule bydci to 2, and open Spatial Bundling (Spatial Bundling), for example, configure a parameter harq-ACK-Spatial Bundling pucch or harq-ACK-Spatial Bundling pusch for the terminal.

It may be understood that the codeword is a concept used when the physical layer transmits data through a wireless channel, and the TB is a concept used when the physical layer receives and encodes a protocol data unit PDU of the MAC and the like, and the codeword and the TB may be in one-to-one correspondence, and the TB and the MAC PDU may be in one-to-one correspondence. Typically, when maximum two codeword receptions are configured for a terminal, a single scheduling DCI may schedule two codewords simultaneously, or two transport blocks, and separate scheduling information, e.g., NDI information, may be set for each transport block, typically corresponding to a single NDI bit per transport block. In general, when a single scheduling DCI schedules two codewords or two transport blocks simultaneously, codeword 0 corresponds to a first TB scheduled and codeword 1 corresponds to a second TB scheduled. When a single scheduling DCI actually schedules only a single transport block, this single transport block corresponds to codeword 0.

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 sending 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-shotHARQ-ACK codebook, and may include: the method comprises the steps of 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 a terminal.

Wherein the first HARQ process corresponds to at least two TBs. In one embodiment, when a maximum of two codewords received in the downlink is configured, the first HARQ process corresponds to two TBs, which may also be referred to as the first HARQ process corresponds to two codewords. The first HARQ process herein may be any HARQ process in a set of downlink HARQ processes configured by the network for the terminal 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, 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 respectively 0 and 0, or 0 and 1, or 1 and 0, the corresponding value of the first feedback bit is 0; 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 NDI information for each TB may correspond to a single NDI bit. The value of the single NDI bit for each TB may be the last NDI value indicated by the scheduling DCI for the corresponding TB of this 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 the NDI information of at least two TB exists, and the normal HARQ-ACK feedback and data transmission are ensured.

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

Mode one

In this way, the first NDI information comprises: NDI information of at least two TBs arranged in sequence, i.e., NDI information of each TB arranged in sequence. 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 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 mode, all the 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, namely 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 the bits are concatenated to form a bit sequence, i.e., 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 the 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. In consideration of CBG-based HARQ-ACK feedback and retransmission, a typical processing manner is to ignore the switching configuration of Spatial Bundling, for example, ignore the setting of whether Spatial Bundling is on, and not actually do Spatial Bundling between the HARQ-ACK information bits of two TBs, that is, to place a single NDI bit corresponding to each TB after a bit sequence formed by the HARQ-ACK information bits corresponding to each CBG of the TB, without considering the binary and operation. In another processing manner, still consider the switch configuration of the Spatial Bundling, when the configuration turns on the Spatial Bundling, performing a related operation (for example, binary and operation) on the 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 the index of the CBG, where the feedback bit sequence (i.e., 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 feedback bit sequence for a certain HARQ process may be constructed with reference to the following pseudocode. Wherein j is an index of each feedback bit in the feedback bit sequence, and the initial value of j=0 (i.e., j is a local bit index in the feedback bit sequence for the current HARQ process), or the initial value of j is an index of the first bit of the feedback bit sequence of the current HARQ process in the HARQ-ACK codebook fed back by the terminal (i.e., j is a global bit index in the bit sequence corresponding to the HARQ-ACK codebook fed back by the terminal);

the feedback bit with index j in the feedback bit sequence is valued;

The value of parameter maxNrofCodeWordsSchedulyDCI configured for the service cell c of the terminal indicates the maximum number of codewords or TB that each scheduling DCI can schedule simultaneously on the service cell; t is a loop variable for a TB, indicating the TB index in a certain active loop operation.

Mode two

In the second mode, the first NDI information is: NDI information for any of at least two TBs. And NDI information for 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 incorporating NDI information of only a single TB into the corresponding HARQ-ACK codebook, feedback overhead can be saved compared to the above-described mode one. At this time, the DCI missed detection condition is determined by the NDI of the selected single TB and the PDSCH transmission corresponding to the HARQ-ACK feedback is determined, and although there is a certain degree of information loss, feedback overhead can be saved. For example, for a certain scheduling DCI, if the NDI of a selected TB is not flipped, but the NDI of another TB is flipped, even if the scheduling DCI is missed by the UE, the network device cannot identify the DCI missed situation based on the reported NDI of the selected TB. And if the NDI inversions of the two TB are synchronous or the NDI inversions of the selected TB are frequent, the performance loss is smaller.

In one embodiment, taking an example that a certain HARQ process (such as HARQ process 2) corresponds to two TBs, namely 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; alternatively, a single HARQ-ACK feedback bit+ndi bit of the second TB. Wherein "+" indicates that the bits are concatenated to form a bit sequence, i.e., 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 the 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. In consideration of CBG-based HARQ-ACK feedback and retransmission, a typical processing manner is to ignore the switching configuration of Spatial Bundling, for example, ignore the setting of whether Spatial Bundling is on, and not actually do Spatial Bundling between the HARQ-ACK information bits of two TBs, that is, to place a single NDI bit corresponding to each TB after a bit sequence formed by the HARQ-ACK information bits corresponding to each CBG of the TB, without considering the binary and operation. In another processing manner, still consider the switch configuration of the Spatial Bundling, when the configuration turns on the Spatial Bundling, performing a related operation (for example, binary and operation) on the 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 the index of the CBG, where the feedback bit sequence (i.e., 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 three

In the third aspect, the first NDI information may be obtained by performing a second preset operation on NDI information of at least two TBs, that is, comprehensively processing NDI information of each TB. The NDI information for 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 operations, binary OR operations, binary XOR operations. Different operations may correspond to different scenarios of association or value relationships of NDI information for different TBs. For example, if the NDI flip of different TBs is more synchronous, a logical and operation may be employed; if not, a logical exclusive-or operation may be employed (the exclusive-or result will change when only one NDI changes). Optionally, the corresponding flip indication of each TB may be further processed correspondingly based on whether the last NDI value of each TB of a certain HARQ process is flipped with respect to the second last NDI value, 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 the corresponding TB in the last scheduling DCI detected by the UE for the certain HARQ process, and the corresponding penultimate NDI value is indicated by the penultimate scheduling DCI detected by the UE for the certain HARQ process.

In this way, compared with the first and second modes, not only can all the related NDI information be completely carried in the corresponding HARQ-ACK codebook, the loss of the information is avoided, but also the feedback overhead can be saved.

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: the method comprises the steps of 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 a maximum of two codewords are configured for downlink reception and Spatial Bundling is turned on, the first HARQ process corresponds to two TBs, which may also be referred to as the first HARQ process corresponds 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, 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 NDI information for each TB may correspond to a single NDI bit.

After receiving the HARQ-ACK codebook, the network device may determine, based on the first NDI information for a certain HARQ process in the HARQ-ACK codebook, whether DCI missed detection exists at the UE side, thereby determining PDSCH transmission corresponding to the HARQ-ACK feedback bit carried in the HARQ-ACK codebook. Optionally, when the first NDI information of a HARQ process in the HARQ-ACK codebook is completely consistent with the value of the NDI information expected by the network device, the network device may determine that DCI omission does not exist in the UE side for the HARQ process.

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 the NDI information of at least two TB exists, thereby ensuring normal HARQ-ACK feedback and data transmission.

Optionally, the first NDI information comprises: NDI information of the at least two TBs sequentially arranged. Optionally, 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 indicates V11 in the received HARQ-ACK codebook, the NDI bit corresponding to the second TB of the HARQ process indicates V12, and the network side expects, based on its own scheduling situation, that the NDI bit corresponding to the first TB and the second TB of the HARQ process respectively be V21 and V22 (i.e. the NDI indication corresponding to the first TB and the second TB in the last scheduling DCI of the HARQ process by the network device is V21 and V22 respectively), the network device determines that no missed DCI occurs at the UE for the HARQ process only when V11 and V21 are equal and V12 and V22 are equal, otherwise the network device determines that a missed DCI has occurred at the UE for the HARQ process (at least the last scheduling DCI for the HARQ process is missed), and may determine that the DCI for the HARQ process detected at the UE based on V11 and V12 (the first and second TBs are V21 and V22 respectively, and the DCI is further determined that the DCI is transmitted for the corresponding to the first TB and the second TB).

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

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

Optionally, the preset operation includes any one of the following: binary AND operations, binary OR operations, binary XOR operations.

The foregoing embodiments are illustrative of the codebook transmission method and codebook reception method of the present invention, and the terminal and network device of the present invention will be described with reference to the embodiments and the accompanying 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 comprises: NDI information of the at least two TBs sequentially arranged.

The terminal 40 according to the embodiment of the present invention may implement each process implemented in the embodiment of the method shown in fig. 2 and achieve the same beneficial effects, and in order to avoid repetition, a detailed description is omitted here.

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 in order to avoid repetition, a detailed description is omitted here.

The embodiment of the invention also provides a communication device, which comprises a processor and a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program realizes each process of the method embodiment shown in fig. 2 or fig. 3 when being executed by the processor, and can achieve the same technical effect, and the repetition is avoided, and the description is omitted here. Alternatively, the communication device may be a terminal or a network device.

Referring to fig. 6, fig. 6 is a schematic hardware structure of a terminal implementing various embodiments of the present invention, and terminal 600 includes, but is not limited to: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, processor 610, and power supply 611. It will be appreciated by those skilled in the art that the terminal structure shown in fig. 6 is not limiting of the terminal and that the terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components. In the embodiment of the invention, the terminal comprises, 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 embodiment of the method shown in fig. 2 and achieve the same beneficial effects, and in order to avoid repetition, a detailed description is omitted here.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be used to receive and send information or signals during a call, specifically, receive downlink data from a base station, and then process the downlink data with the processor 610; and, the uplink data is transmitted to the base station. Typically, the 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. In addition, the radio frequency unit 601 may also communicate with networks and other devices through a wireless communication system.

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

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 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the terminal 600. The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.

The input unit 604 is used for receiving audio or video signals. The input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042, the graphics processor 6041 processing image data of still pictures or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphics 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. Microphone 6042 may receive sound and can process such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 601 in the case of a telephone call mode.

The terminal 600 also includes at least one sensor 605, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 6061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 6061 and/or the backlight when the terminal 600 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when the accelerometer sensor is stationary, and can be used for recognizing the terminal gesture (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor 605 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described herein.

The display unit 606 is used to display information input by a 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 in the form of a liquid crystal display (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 to 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 thereon or thereabout by a user (e.g., operations of the user on touch panel 6071 or thereabout using any suitable object or accessory such as a finger, stylus, or the like). The touch panel 6071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth 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 detection device and converts it into touch point coordinates, which are then sent to the processor 610, and receives and executes commands sent from the processor 610. In addition, the touch panel 6071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein.

Further, the touch panel 6071 may be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation thereon or thereabout, the touch operation is transmitted to the processor 610 to determine a type of a 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 implement the input and output functions of the terminal, in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 608 is an interface to which an external device is connected to the terminal 600. For example, the external devices may include a wired or wireless headset port, an external power (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 storage program area that may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, 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 running 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. The processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily 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 respective components, and preferably, the power supply 611 may be logically connected to the processor 610 through a power management system, so that functions of managing charging, discharging, and power consumption management are performed through the power management system.

In addition, the terminal 600 may further include some functional modules, which are not shown, and will not be described herein.

Referring to fig. 7, fig. 7 is a schematic hardware structure of a network device 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 an 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 steps of:

receiving an 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 of 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 in order to avoid repetition, a detailed description is omitted here.

In fig. 7, a bus architecture (represented by bus 71), the bus 71 may comprise any number of interconnected buses and bridges, with the 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 peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 74 provides an interface between bus 71 and transceiver 72. The transceiver 72 may be one element or may be multiple elements, such as multiple 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 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 memory 76 may be used to store data used by processor 75 in performing operations.

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

The embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements each process of the method embodiment shown in fig. 1 or fig. 3 and achieves the same technical effects, and is not repeated herein. The computer readable storage medium is, for example, read-Only Memory (ROM), random access Memory (Random Access Memory RAM), magnetic disk or 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. The 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 the network device;

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

the first HARQ process corresponds to at least two transport blocks 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.

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

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

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

5. The method of claim 4, wherein the second preset operation comprises any one of: binary AND operations, binary OR operations, binary XOR operations.

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

7. A codebook receiving method applied to a network device, comprising:

receiving an 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 sequentially arranged.

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

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

11. The method of claim 10, wherein the second preset operation comprises any one of: binary AND operations, binary OR operations, binary XOR operations.

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 when executed by the processor implements 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.

16. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the codebook transmission method according to any of claims 1 to 6 or the codebook reception method according to any of claims 7 to 12.