Information feedback method and device

Abstract

In an embodiment of the present invention, there is provided an information feedback method, an information reception method, and an information reception device, which include the steps of: receiving, by the terminal device, downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; receiving, by the terminal device, at least one (N) second PDSCH; and transmitting, by the terminal device, first HARQ-ACK information, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

Description

[Technical field]

[0001] The present invention relates to the technical field of communications. [Background technology]

[0002] A physical downlink shared channel (PDSCH) is one of the physical downlink channels in a wireless communication system and is used to carry downlink data. The PDSCH can be scheduled by downlink control information (DCI). The DCI for scheduling the PDSCH includes at least information for indicating the resource of the PDSCH. In the current new radio (NR) system, multiple DCI formats for scheduling the PDSCH, such as DCI format 1_0, DCI format 1_1, and DCI format 1_2, are defined, and the specific information and / or size included in the DCI of different DCI formats are different to meet different scheduling needs.

[0003] It should be noted that the introduction of the above background art is intended to clearly and completely explain the technical solutions of the present invention, and to facilitate understanding thereof by those skilled in the art, and these technical solutions are described in the background art of the present invention, and therefore should not be construed as being known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0004] In the current NR system, one DCI can only schedule one PDSCH. The inventors have found that in some cases, for a terminal device, such a scheduling method may have a problem of high load of DCI (PDCCH) monitoring, which may increase the complexity and power consumption of the device.

[0005] For example, currently, research is being conducted on how to support NR systems to operate at higher frequencies (52.6 GHz or higher), and data transmission at higher frequencies faces more serious problems such as phase noise. Therefore, in order to overcome problems such as phase noise, it is necessary to adopt a larger subcarrier spacing (e.g., 240 kHz, 480 kHz, 960 kHz, etc.) to support data transmission at higher frequencies, but the larger subcarrier spacing means a shorter symbol length. If the current frame structure design of NR (wherein one slot contains 14 symbols) is used as is, the larger subcarrier spacing means a shorter slot length. On the other hand, if the above-mentioned scheduling method is adopted to support that a terminal device (UE) can receive at least one PDSCH in each slot, the UE needs to monitor DCI in each slot. In this way, when the above-mentioned larger subcarrier spacing is adopted, the slot length is shortened, and the number of DCI monitoring times per unit time of the UE increases. In other words, the load of DCI monitoring on the UE increases, and the implementation complexity and power consumption of the UE also increase accordingly.

[0006] In view of at least one of the above problems, an object of the present invention is to provide an information feedback method, an information receiving method and an apparatus. [Means for solving the problem]

[0007] According to one aspect of an embodiment of the present invention, there is provided an information feedback device, the device comprising: a first receiving unit for receiving downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; a second receiving unit for receiving at least one (N) second PDSCH; and The first transmitting unit includes a first transmitting unit for transmitting first HARQ-ACK information, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0008] According to another aspect of an embodiment of the present invention, there is provided an information receiving device, the information receiving device comprising: a second transmitting unit for transmitting, to a terminal device, downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI being used for indicating time domain resource allocation information of at least two (M) first PDSCHs; a third transmitting unit for transmitting at least one (N) second PDSCH to the terminal device; and A fourth receiving unit for receiving first HARQ-ACK information transmitted by a terminal device, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0009] According to another aspect of an embodiment of the present invention, there is provided a communication system, the system including at least a terminal device and a network device, The terminal device receives downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) transmitted by the network device, the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; The terminal device receives at least one (N) second PDSCH transmitted by the network device; The terminal device transmits first HARQ-ACK information to the network device, and the first HARQ-ACK information includes second HARQ-ACK information of the at least one (N) second PDSCH. Effect of the Invention

[0010] One of the advantageous effects of the embodiment of the present invention is that multiple PDSCHs can be scheduled by one DCI, and a new HARQ-ACK information feedback method can support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI, thereby reducing the DCI monitoring load of the terminal device and reducing power consumption and complexity.

[0011] Specific embodiments of the present invention are disclosed in detail below with reference to the following description and drawings, which show how the principles of the present invention may be employed, but are not limited in scope to these embodiments, which may include various changes, modifications, and alternatives within the scope of the appended claims.

[0012] Additionally, features described and / or illustrated in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in the other embodiments, or may be substituted for features in the other embodiments.

[0013] It should be noted that terms such as "comprise / have" when used in this specification refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief description of the drawings]

[0014] Elements and features depicted in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments, and in the drawings, like symbols are used to indicate corresponding parts in several drawings and to indicate corresponding parts used in multiple embodiments. [Figure 1] FIG. 1 illustrates a communication system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram illustrating an information feedback method according to an embodiment of the present invention. [Figure 3A]FIG. 2 illustrates a time domain location of at least one (N) second PDSCH in an embodiment of the present invention. [Figure 3B] FIG. 2 illustrates a time domain location of at least one (N) second PDSCH in an embodiment of the present invention. [Figure 3C] FIG. 2 illustrates a time domain location of at least one (N) second PDSCH in an embodiment of the present invention. [Figure 4A] A diagram showing a feedback slot of the first HARQ-ACK information in an embodiment of the present invention. [Figure 4B] A diagram showing a feedback slot of the first HARQ-ACK information in an embodiment of the present invention. [Diagram 5] FIG. 2 illustrates a method for generating a codebook in an embodiment of the present invention. [Figure 6A] FIG. 4 is a diagram showing a codebook in an embodiment of the present invention. [Figure 6B] FIG. 4 is a diagram showing a codebook in an embodiment of the present invention. [Figure 7] FIG. 2 is a diagram illustrating an information receiving method according to an embodiment of the present invention. [Figure 8] 1 is a diagram illustrating an information feedback device according to an embodiment of the present invention. [Figure 9] FIG. 1 is a diagram showing an information receiving device according to an embodiment of the present invention. [Figure 10] FIG. 2 illustrates a network device according to an embodiment of the present invention. [Figure 11] FIG. 2 is a diagram illustrating a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The above and other features of the present invention will become apparent from the following detailed description and the accompanying drawings, in which: While the specification and drawings disclose certain embodiments of the present invention, these are illustrative of only some of the embodiments which may employ the principles of the present invention, and it is to be understood that the present invention is not limited to the described embodiments, but rather includes all modifications, variations and alternatives which fall within the scope of the appended claims.

[0016] In an embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0017] Additionally, communication between devices in the communication system may be performed according to any stage of communication protocol, including, but not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future 5G, New Radio (NR), and / or other conventional or future developed communication protocols.

[0018] In the embodiment of the present invention, the term "network device" refers to a device that connects a terminal device to a communication network and provides services to the terminal device in a communication system, for example, the network device may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a network gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0019] Among them, the base station may include, but is not limited to, the following: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may further include RRH (Remote Radio Head), RRU (Remote Radio Unit), relay, or low power node (e.g., femto, pico, etc.). In addition, the term "base station" may include some or all of the functions thereof, and each base station can provide communication coverage for a specific geographical area. The term "cell" may refer to a base station and / or the area it covers, depending on the context of the term.

[0020] In the embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives services from the network, for example, via a network device. A User Equipment may be fixed or mobile, and may also be called a Mobile Station (MS), a terminal, a Subscriber Station (SS), an Access Terminal (AT), a station, etc.

[0021] Among these, user devices may include, but are not limited to, the following: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine type communication devices, laptop computers, cordless telephones, smartphones, smart watches, digital cameras, etc.

[0022] In addition, the term "network side" or "network device side" refers to the network side, which may be a base station or a core network device, and may include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which may be a UE, and may include one or more terminal devices as described above. In this specification, unless otherwise specified, "device" may refer to a network device or a terminal device.

[0023] In the embodiment of the present invention, the time unit may be a subframe, a slot, or a set of at least one time domain symbol. The set of at least one time domain symbol may be referred to as a mini-slot or a non-slot. For example, in the embodiment of the present invention, a subframe and a slot may be interchangeable, and a "slot" may be replaced with a "subframe", but the present invention is not limited thereto. For convenience of explanation, the following description will be given using a "slot" as an example, but may be replaced with other time units. In addition, the terms "time domain resource" and "resource" may be interchangeable.

[0024] In the following description, unless confusion arises, the terms “uplink control signal” and “uplink control information (UCI)” or “Physical Uplink Control Channel (PUCCH)” are interchangeable, the terms “uplink data signal” and “uplink data information” or “Physical Uplink Shared Channel (PUSCH)” are interchangeable, the terms “downlink control signal” and “downlink control information (DCI)” or “Physical Downlink Control Channel (PDCCH)” are interchangeable, and the terms “downlink data signal” and “downlink data information” or “Physical Downlink Shared Channel (PDSCH)” are interchangeable.

[0025] In addition, the transmission or reception of a PUSCH may be understood as the transmission or reception of uplink data carried by the PUSCH, the transmission or reception of a PUCCH may be understood as the transmission or reception of uplink information (e.g., UCI) carried by the PUCCH, the transmission or reception of a PRACH may be understood as the transmission or reception of a preamble carried by the PRACH, the transmission or reception of a PDSCH may be understood as the transmission or reception of downlink data carried by the PDSCH, and the transmission or reception of a PDCCH may be understood as the transmission or reception of downlink information (e.g., DCI) carried by the PDCCH.

[0026] In the embodiment of the present invention, the higher layer signaling may be, for example, Radio Resource Control (RRC) signaling, for example, referred to as an RRC message, including, for example, a Master Information Block (MIB), system information, a dedicated RRC message, or referred to as an RRC information element (RRC IE). The higher layer signaling may be, for example, further Medium Access Control (MAC) signaling, or referred to as a MAC control element (MAC CE), but the present invention is not limited thereto.

[0027] Hereinafter, a scenario in an embodiment of the present invention will be described through an example, but the present invention is not limited thereto.

[0028] Fig. 1 is a diagram showing a communication system in an embodiment of the present invention, taking a terminal device and a network device as an example. As shown in Fig. 1, a communication system 100 may include a network device 101 and terminal devices 102 and 103. For convenience, Fig. 1 shows an example in which only two terminal devices and only one network device are used, but the embodiment of the present invention is not limited to this.

[0029] In an embodiment of the present invention, existing services or future services can be performed between the network device 101 and the terminal devices 102 and 103. These services include, but are not limited to, communications related to eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), and URLLC (Ultra-Reliable and Low-Latency Communication).

[0030] 1 shows that both of the two terminal devices 102 and 103 are located within the coverage of the network device 101, but the present invention is not limited to this. Neither of the two terminal devices 102 and 103 may be located within the coverage of the network device 101, or one terminal device 102 may be located within the coverage of the network device 101 and the other terminal device 103 may be located outside the coverage of the network device 101.

[0031] In the embodiment of the present invention, since the transport blocks (for example, one or two transport blocks) carried by different PDSCHs are different, hereinafter, "multiple PDSCHs" or "at least two PDSCHs" refers to different PDSCHs carrying different transport blocks. More specifically, the transport blocks carried by different PDSCHs correspond to different HARQ processes, among which, different HARQ processes have different HARQ process IDs.

[0032] In the conventional scheme, one DCI can only schedule one PDSCH, but cannot schedule multiple PDSCHs. In the embodiment of the present invention, one DCI can schedule multiple PDSCHs, where each PDSCH carries different transport blocks (in a non-repetition manner), and one DCI can support feedback of HARQ-ACK information of multiple PDSCHs scheduled, thereby reducing the load of DCI monitoring of the terminal device, and reducing power consumption and complexity.

[0033] Various embodiments of the present invention will now be described with reference to the accompanying drawings, in which: It should be noted that these embodiments are merely illustrative and are not intended to limit the present invention.

[0034] <Example of the first aspect> An information feedback method is provided in an embodiment of the present invention, and is described from the terminal device side.

[0035] 2 is a diagram illustrating an information feedback method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:

[0036] 201: The terminal device receives downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI including a first information field for indicating time domain resources of at least two (M) first PDSCHs; 202: The terminal device receives at least one (N) second PDSCH; and 203: The terminal device sends first HARQ-ACK information, where the first HARQ-ACK information includes second HARQ-ACK information of the at least one (N) second PDSCH.

[0037] In some embodiments, the DCI format of the DCI for scheduling the PDSCH may be DCI format 1_0, DCI format 1_1, DCI format 1_2, a new DCI format to be introduced, etc., but embodiments of the present invention are not limited thereto.

[0038] In some embodiments, the DCI for scheduling the PDSCH may be scrambled with a Cell-Radio Network Temporary Identifier (C-RNTI), a Modulation and Coding Scheme C-RNTI (MCS-C-RNTI), a Configuration Scheduling RNTI (CS-RNTI), a Temporary C-RNTI (TC-RNTI), a System Information RNTI (SI-RNTI), a Random Access RNTI (RA-RNTI), a MsgB-RNTI in a Random Access Response, a Paging RNTI (P-RNTI), a new RNTI to be introduced, etc., but embodiments of the present invention are not limited thereto.

[0039] In some embodiments, the first PDSCH is a PDSCH indicated by the DCI and may be referred to as an indicated PDSCH or a nominal PDSCH, the time domain resources of the at least two (M) first PDSCHs (hereinafter referred to as M first PDSCHs, where M is 2 or more) are contiguous or non-contiguous, the number of time domain symbols of different first PDSCHs is the same or different, and the time domain resource of each first PDSCH is in one slot or not in one slot, but the embodiments of the present invention are not limited thereto.

[0040] In some embodiments, the network device side can configure a time domain relationship list between PDSCH and PDCCH (also referred to as a first time domain resource allocation table) through higher layer signaling, for example, the network device sends an RRC message, the RRC message includes first configuration information, the first configuration information includes at least one first information element, where one first information element is used to configure the time domain relationship between PDSCH and PDCCH, for example, the first configuration information is PDSCH-TimeDomainResourceAllocationList, the first information element is PDSCH-TimeDomainResourceAllocation, and the first configuration information is included in pdsch-ConfigCommon or pdsch-Config, for example. The first time domain resource allocation table includes at least one row of PDSCH time domain resource configuration, and the one row of PDSCH time domain resource configuration corresponds to the above-mentioned first information element.

[0041] In some embodiments, the DCI includes a first information field for indicating at least two (M) time domain resources of the first PDSCH, the first information field being, for example, a time domain resource assignment field, and the first information field including a fifth number (E) of bits, the fifth number may be set or predefined, but the embodiments of the present invention are not limited thereto, and a decimal value corresponding to the fifth number of bits is the value of the first information field, and the value of the first information field may be used to indicate which first information element in the first configuration information the DCI indicates, for example, when the value of the first information field is 0, it indicates the first first information element in the first configuration information, and when the value of the first information field is 1, it indicates the second first information element in the first configuration information, and other examples can be inferred based on this, so comprehensive examples are omitted here.

[0042] The following will further describe how to determine at least two (M) first PDSCHs (hereinafter referred to as M first PDSCHs, where M is 2 or more) to be indicated based on the first information field and the first setting information.

[0043] In some embodiments, when the above-mentioned first information field is used to indicate time domain resources of at least two (M) first PDSCHs, the value of the first information field corresponds to one first information element, and the one first information element is used to set the time domain relationship between the M first PDSCHs and the PDCCH carrying the DCI.

[0044] In some embodiments, the first information element may include at least one second information element (e.g., PDSCH-Allocation or startSymbolAndLength) used to configure time domain resources of a PDSCH (which may be referred to as symbols of a PDSCH, e.g., including a start symbol and length (SLIV) of a PDSCH), and the number of second information elements included in each first information element may be the same or different, in other words, the first information element may include up to a first predetermined value (e.g., maxNrofMultiplePDSCHs) of second information elements, the first predetermined value being predefined and greater than 1, the second information element is used to configure the time domain resources of one PDSCH, the value of the first information field corresponds to one first information element, and the one first information element is used to configure the time domain relationship between M first PDSCHs and a PDCCH carrying the DCI, in other words, the one first information element includes at least two (M) second information elements, and each second information element is used to configure the time domain resource of one first PDSCH.

[0045] In the above embodiment, the second information element includes a PDSCH mapping type (mappingType) and a start symbol and length (startSymbolAndLength) setting, that is, the time domain resource of each first PDSCH is determined using its own PDSCH mapping type and start symbol and length setting (in its corresponding second information element). For example, the first setting information adopts Abstract Syntax Notation One (ASN.1), and the data format may be expressed as follows:

[0046] [Table 1] Alternatively, the second information element includes a start symbol and length setting (startSymbolAndLength), and the first information element includes a PDSCH mapping type setting (mappingType), that is, the time domain resource of each first PDSCH is configured using its own start symbol and length (in its corresponding second information element), but is determined using the same PDSCH mapping type setting. For example, the first setting information adopts Abstract Syntax Notation One (ASN.1), and the data format may be expressed as follows:

[0047] [Table 2] In some embodiments, the first information element may include information for setting a sixth quantity (F), e.g., nrOfPDSCHs, which represents the number of first PDSCHs corresponding to the first information element. When the above-mentioned first information field is used to indicate time domain resources of at least two (M) first PDSCHs, the value of the first information field corresponds to one first information element, which is used to set the time domain relationship between the M first PDSCHs and a PDCCH carrying DCI, and the sixth quantity F included in the one first information element is the above-mentioned M.

[0048] In the above embodiment, the first information element includes information (e.g., k0) for setting a slot offset (K0) between a PDSCH and a PDCCH. For example, k0 indicates a slot offset between a start time domain position of the F first PDSCHs and a PDCCH, in other words, a slot offset between a first PDSCH of the F first PDSCHs and a PDCCH. For example, if a PDCCH for carrying the above-mentioned DCI is transmitted in slot n, a start time domain position of the F first PDSCHs is in slot n+K0, in other words, a first PDSCH of the F first PDSCHs is transmitted in slot n+K0. In addition, the first information element may further include information for setting a PDSCH mapping type (e.g., mappingType) and / or information for setting a time domain resource of the PDSCH (in other words, a symbol of the PDSCH, including e.g., a start symbol and length (SLIV) of the PDSCH) (e.g., startSymbolAndLength). For example, the first setting information adopts Abstract Syntax Notation One (ASN.1), and the data format may be expressed as follows:

[0049] [Table 3] Wherein, SEQUENCE indicates an ordered set of corresponding information, SIZE indicates the quantity of elements in the corresponding SEQUENCE set, and INTEGER() and ENUMERATED() indicate the value type and value range of the corresponding information. For specific details, please refer to the ASN.1 syntax, so detailed explanations are omitted here.

[0050] In the above embodiment, F first PDSCH time domain resources can be determined using the same PDSCH mapping type, starting symbol and length, or the time domain resource of the first PDSCH among the above-mentioned F first PDSCHs is determined using the PDSCH mapping type, starting symbol and length, and the time domain resources of the remaining (F-1) first PDSCHs have the same length as the time domain resource of the first PDSCH and are sequentially mapped to consecutive symbols.

[0051] In some embodiments, the first information element may include a seventh quantity (G) of information (e.g., nrOfSlots), where the seventh quantity indicates the number of slots corresponding to the first information element. The value of the first information field corresponds to one first information element, where the one first information element is used to set the time domain relationship between the M first PDSCHs and the PDCCH carrying the DCI, and the seventh quantity G included in the one first information element is the above-mentioned M.

[0052] In the above embodiment, the first information element includes information (e.g., k0) for setting a slot offset (K0) between the PDSCH and the PDCCH. For example, k0 indicates a slot offset between the start time domain position of the G first PDSCHs and the PDCCH, in other words, a slot offset between the first PDSCH of the G first PDSCHs and the PDCCH. For example, if the PDCCH for carrying the above-mentioned DCI is transmitted in slot n, the start time domain position of the G first PDSCHs is in slot n+K0, in other words, the first PDSCH of the G first PDSCHs is transmitted in slot n+K0, and the first information element may further include information (e.g., mappingType) for setting a PDSCH mapping type and / or information (e.g., startSymbolAndLength) for setting a time domain resource of the PDSCH (in other words, a symbol of the PDSCH, including, e.g., a start symbol and a length (SLIV) of the PDSCH), and the G first PDSCH time domain resources can be determined using the same PDSCH mapping type and start symbol and length.

[0053] For example, the first configuration information may adopt Abstract Syntax Notation One (ASN.1), and the data format may be expressed as follows:

[0054] [Table 4] In some embodiments, the network device may further configure a slot offset value (K0) between multiple PDSCHs and PDCCHs through higher layer signaling, that is, the time domain resources of the M first PDSCHs use their own (K0) information to determine the slots in which they are located. For example, the slot offset (K0) information between the PDSCHs and PDCCH may be included in a second information element, and the time domain resources of the M first PDSCHs use their own (K0) information to determine the slots in which they are located. Note that a comprehensive example is omitted here.

[0055] The above describes an example in which the network device sets a time domain relationship list between PDSCH and PDCCH (also called a PDSCH time domain resource allocation list) through higher layer signaling. However, the embodiment of the present invention is not limited to this. For example, it is also possible to set time domain resources for multiple PDSCHs by predefining a time domain relationship list between PDSCH and PDCCH. Since the setting of one line is similar to the setting of one first information element described above, a detailed description thereof will be omitted here.

[0056] How to determine the at least one (N) second PDSCH will be further described below.

[0057] In some embodiments, the second PDSCH is an actual scheduled PDSCH (e.g. scheduled PDSCH, actual PDSCH), and the above-mentioned first PDSCH is a second PDSCH, where N=M, and N and M are both greater than or equal to 2. In other words, the M first PDSCHs indicated by the DCI are N actual scheduled second PDSCHs.

[0058] In some embodiments, the terminal device may determine the at least one (N) second PDSCH based on at least one of the following information: a semi-statically set transmission direction (in other words, information for semi-statically setting the transmission direction), a set PRACH resource, information for dynamically scheduling uplink transmission or information for dynamically setting the transmission direction, a set invalid symbol, and a cross slot. Each of these will be described below.

[0059] In some embodiments, the semi-static configuration refers to the base station setting by higher layer signaling at the cell level / user-dedicated level. The information for semi-statically setting the transmission direction is, for example, tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, and the transmission direction of one time unit (e.g., symbol, slot, subframe) can be semi-statically set as uplink, downlink, or flexible, among which, the time unit that is not explicitly set as uplink or downlink according to the above information is set as flexible. When determining N second PDSCHs based on the semi-statically set transmission direction, if at least one symbol of the first PDSCH is semi-statically set as uplink (i.e., the downlink PDSCH cannot be received), the first PDSCH is not set as the second PDSCH, in other words, the terminal device does not receive the first PDSCH. For example, for one slot among a plurality of slots (assuming that one slot has one first PDSCH), if at least one symbol of the first PDSCH indicated by the above-mentioned DCI in the slot is semi-statically set to the uplink, the terminal device does not receive the first PDSCH in the slot. Figure 3A is a diagram showing at least one second PDSCH. As shown in Figure 3A, if one symbol in the first PDSCH in the second slot in the figure is semi-statically set to the uplink and the other symbols in the figure are not set to the uplink, the first PDSCH is not set to the second PDSCH.

[0060] In some embodiments, when determining N second PDSCHs based on the configured PRACH resources, if a PRACH is configured in at least one symbol of the first PDSCH and / or the at least one symbol of the first PDSCH is a symbol among a tenth number (the tenth number is, for example, predefined) of symbols (for example, referred to as interval symbols) before the configured PRACH, the first PDSCH is not set as the second PDSCH. Figure 3B is a diagram showing the at least one second PDSCH. As shown in Figure 3B, since a PRACH is configured in at least one symbol in the first PDSCH in the second slot in the figure, and the at least one symbol of the first PDSCH is a symbol among a tenth number (the number is, for example, predefined) of symbols (for example, referred to as interval symbols) before the configured PRACH, the first PDSCH is not set as the second PDSCH, in other words, the terminal device does not receive the first PDSCH.

[0061] In some embodiments, the transmission direction can be set as uplink, downlink or flexible according to the information for dynamically setting the transmission direction, among which, the time unit that is not explicitly set as uplink or downlink according to the above information is the time unit set as flexible, and when determining N second PDSCHs according to the information for dynamically scheduling uplink transmission or the information for dynamically setting the transmission direction, if at least one symbol in the first PDSCH is dynamically scheduled as uplink transmission according to the information, or the transmission direction is dynamically set as uplink according to the information, the first PDSCH is not the second PDSCH, in other words, the terminal device does not receive the first PDSCH. Note that the above-mentioned implementation methods and the above-mentioned implementation method for semi-static setting are not described in detail here.

[0062] In the above-mentioned embodiments, information for dynamically scheduling uplink transmission (e.g., DCI of DCI format 0_0 or DCI format 0_1 ​​or DCI format 0_2) or information for dynamically setting the transmission direction (e.g., DCI of DCI format 2_0) is transmitted before the DCI, otherwise, the UE does not determine the second PDSCH based on the information, in other words, does not take the information into account when determining at least one second PDSCH.

[0063] Alternatively, in the above-mentioned embodiments, information for dynamically scheduling uplink transmission (e.g., DCI of DCI format 0_0, DCI format 0_1, or DCI format 0_2) or information for dynamically setting the transmission direction (e.g., DCI of DCI format 2_0) is transmitted before a predetermined time of the DCI (the predetermined time is, for example, predefined), otherwise, the UE does not determine a second PDSCH based on the information, in other words, does not take the information into account when determining at least one second PDSCH.

[0064] In some embodiments, when determining at least one second PDSCH based on the set invalid symbol, if at least one symbol of the first PDSCH is set as invalid (i.e., the downlink PDSCH cannot be received), the first PDSCH is not set as the second PDSCH. Note that, the above-mentioned implementation methods and the above-mentioned implementation method of semi-static setting are not described comprehensively here.

[0065] In some embodiments, the terminal device may further determine the invalid symbol based on at least one of the following information: a semi-statically configured transmission direction (in other words, information for semi-statically configuring the transmission direction), a configured PRACH resource, information for dynamically scheduling uplink transmission or information for dynamically configured transmission direction, and a configured invalid symbol. For example, the above-mentioned semi-statically configured uplink symbol may be determined to be an invalid symbol, and / or a symbol to which a PRACH resource is configured may be determined to be an invalid symbol, and / or a symbol among a tenth number (the tenth number is, for example, predefined) of symbols (e.g., also referred to as interval symbols) before the configured PRACH may be determined to be an invalid symbol, and / or a symbol dynamically scheduled as an uplink transmission according to information for dynamically scheduling uplink transmission may be determined to be an invalid symbol, and / or a symbol configured as an uplink according to information for dynamically configuring the transmission direction may be determined to be an invalid symbol, and / or a symbol configured as an invalid symbol may be determined to be an invalid symbol. If the first PDSCH includes the determined invalid symbol, the first PDSCH is not taken as the second PDSCH. The specific implementation manner is as mentioned above, and the detailed description thereof is omitted here.

[0066] The above-mentioned methods of determining at least one (N) second PDSCH or determining invalid symbols may be implemented alone or in combination, and the embodiments of the present invention are not limited thereto.

[0067] In some embodiments, the value of N does not exceed the maximum number of the number of first PDSCHs corresponding to each of the above-mentioned first information elements, or the value of N does not exceed M. Figure 3C is a diagram showing the at least one second PDSCH. Assuming that the value of N does not exceed M, as shown in Figure 3C, the value of M is 4, in this case, the number N of the second PDSCHs is at most 4. However, this is merely an example, and the embodiments of the present invention are not limited thereto.

[0068] The following explains that the DCI may include other information fields.

[0069] In some embodiments, the DCI may further include a fifth information field, which may be a HARQ acknowledgement (HARQ-ACK) timing indication (i.e., a PDSCH-to-HARQ_feedback timing indicator) field, and the fifth information field is used to indicate the feedback timing k of the HARQ acknowledgement (HARQ-ACK) information; or the DCI may not include the fifth information field, and the terminal device receives second configuration information (e.g., dl-DataToUL-ACK or dl-DataToUL-ACKForDCIFormat1_2 for DCI format 1_2) configured by higher layer signaling, and the second configuration information is used to indicate the feedback timing k of the HARQ acknowledgement (HARQ-ACK) information.

[0070] In some embodiments, the terminal device transmits the first HARQ-ACK information in a slot with index n+k (slot n+k), where the slot with index n (slot n) is the end slot of the at least two (M) first PDSCHs or the end slot of the last one of the first PDSCHs of the at least two (M) first PDSCHs, where n and k are integers greater than 0, that is, the end slot of the last one of the first PDSCHs is n (the uplink slot index corresponding to the downlink end slot n' of the PDSCH is n), where k is the offset between the feedback slot of the first HARQ-ACK information and slot n, and the relationship between the downlink end slot n' of the PDSCH and its corresponding uplink slot with index n can be determined according to the uplink and downlink subcarrier interval, for specific reference can be made to the prior art, and the detailed description thereof is omitted here. Figures 4A and 4B are diagrams showing the feedback slot of the first HARQ-ACK information. As shown in FIG. 4A, the M first PDSCHs are N second PDSCHs that are actually scheduled, and the downlink slot in which the last first PDSCH ends is n, and slot n+k transmits the first HARQ-ACK information; as shown in FIG. 4B, the last first PDSCH is not considered as the second PDSCH, and the downlink slot in which the last first PDSCH ends is n, and slot n+k transmits the first HARQ-ACK information, rather the downlink slot in which the last second PDSCH ends is n.

[0071] In some embodiments, the first HARQ-ACK information is carried on a PUCCH or a PUSCH, and the second HARQ-ACK information of the at least one (N) second PDSCH is carried on the same PUCCH or PUSCH.

[0072] In some embodiments, the entire HARQ-ACK information fed back by the terminal device in one physical uplink resource may be referred to as a HARQ-ACK codebook, and the terminal device employs a semi-static HARQ-ACK codebook to transmit the first HARQ-ACK information, in other words, the first HARQ-ACK information is a semi-static HARQ-ACK codebook, and the semi-static codebook is also referred to as a Type-1 HARQ-ACK codebook. The size of the codebook does not change dynamically with the actual data scheduling situation, but is determined based on a pre-configured (e.g., configured by higher layer signaling) or pre-defined parameter.

[0073] How to generate the first HARQ-ACK information (ie, how to generate the codebook) will be further described below.

[0074] In some embodiments, the codebook may include the HARQ-ACK information bits of one or more serving cells. The following describes how to determine the HARQ-ACK information bits of one serving cell. If the codebook includes the HARQ-ACK information bits of multiple serving cells, the determination method of the HARQ-ACK information bits of each serving cell is the same as the determination method of the HARQ-ACK information bits of one serving cell described above.

[0075] In some embodiments, the codebook includes HARQ-ACK information bits corresponding to a first number (A) of candidate PDSCH receiving opportunities, where the first number is a natural number, where the first number (A) of candidate PDSCH receiving opportunities correspond to the same serving cell (i.e., the aforementioned one serving cell), that is, the first number (A) of candidate PDSCH receiving opportunities are included in a serving cell candidate PDSCH receiving opportunity set M A,c Belongs to.

[0076] In the prior art, one DCI only supports one PDSCH to be scheduled, so the current HARQ-ACK information feedback method does not consider the case where one DCI schedules multiple PDSCHs, and does not support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI. In the embodiment of the present invention, one DCI can schedule multiple PDSCHs, and in order to support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI, one HARQ-ACK information feedback method is provided, in which the second HARQ-ACK information of at least one (N) second PDSCH can correspond to the same candidate PDSCH receiving opportunity or can correspond to different candidate PDSCH receiving opportunities. Each will be described below.

[0077] I. Second HARQ-ACK information of at least one (N) second PDSCH corresponds to the same candidate PDSCH reception opportunity 5 is a diagram showing a codebook generation method. As shown in FIG. 5, the method includes the following steps:

[0078] 501: determining a first number of candidate PDSCH reception opportunities; and 502: Determine HARQ-ACK information bits corresponding to a first number of candidate PDSCH receiving opportunities.

[0079] In some embodiments, when a row (i.e., one first information element) of the first time domain resource allocation table corresponds to a fourth quantity (D) of PDSCH time domain resources (e.g., includes a plurality of second information elements or includes the above-mentioned sixth or seventh quantity of information), the candidate PDSCH receiving opportunity is determined based on the time domain resource of one PDSCH among the fourth quantity of PDSCHs. For example, the one PDSCH may be the last one PDSCH among the fourth quantity of PDSCHs, but the present invention is not limited thereto, and the fourth quantity is greater than 1.

[0080] In some embodiments, when a row (i.e., one first information element) of the first time domain resource allocation table corresponds to a fourth quantity (D) of PDSCH time domain resources (e.g., includes a plurality of second information elements or includes the sixth or seventh quantity of information described above), the candidate PDSCH receiving opportunity is determined based on at least two (P) PDSCH time domain resources of the fourth quantity of PDSCHs. For example, the at least two (P) PDSCHs may be a fourth quantity of PDSCHs, i.e., P=D, but the present invention is not limited thereto, and the fourth quantity is greater than 1.

[0081] Hereinafter, how to determine the candidate PDSCH receiving opportunity in the above two embodiments will be described in detail.

[0082] In some embodiments, HARQ-ACK information feedback slot n u Based on the slot timing value K1 set associated with the active uplink partial bandwidth UL BWP, D K1 is the HARQ-ACK information feedback slot n of PDSCH. u , the determination of the K1 set can be specifically referred to the prior art. When determining the downlink slot corresponding to each K1, optionally, the subcarrier spacing of the uplink and downlink partial bandwidth needs to be further considered, and one K1 may correspond to multiple downlink slots, which can be specifically referred to the prior art, and is not limited thereto in the embodiments of the present invention.

[0083] In some embodiments, the terminal device determines a first quantity of candidate PDSCH receiving opportunities according to the second time domain resource allocation table. For a downlink slot corresponding to one K1, if all rows of the second time domain resource allocation table satisfy a first condition, the downlink slot does not have a corresponding candidate PDSCH receiving opportunity, if at least one row of the second time domain resource allocation table does not satisfy the first condition, the downlink slot has a corresponding candidate PDSCH receiving opportunity; or, for a downlink slot corresponding to one K1, if all rows of the second time domain resource allocation table do not satisfy a second condition, the downlink slot does not have a corresponding candidate PDSCH receiving opportunity, if at least one row of the second time domain resource allocation table satisfies a second condition, the downlink slot has a corresponding candidate PDSCH receiving opportunity, for example, the first condition can be at least one of the following: the corresponding one or at least two fifth PDSCH time domain resources are semi-statically configured with the uplink; wherein the corresponding one or at least two fifth PDSCH time domain resources include a symbol with a PRACH configured, and the corresponding one or at least two fifth PDSCH time domain resources include a symbol with a PRACH configured, and the corresponding one or at least two fifth PDSCH time domain resources include a symbol with a PRACH configured, and the corresponding one or at least two fifth PDSCH time domain resources include a symbol with a PRACH configured, and the corresponding one or at least two fifth PDSCH time domain resources include a symbol with a PRACH configured, and the corresponding one or at least two fifth PDSCH time domain resources include a symbol with a PRACH configured, and the corresponding one or at least two fifth PDSCH time domain resources include a symbol with a PRACH configured, and the corresponding one or at least two fifth PDSCH time domain resources can be used to schedule a PDSCH corresponding to the downlink slot.For each downlink slot corresponding to each K1, determine whether each downlink slot has a corresponding candidate PDSCH receiving opportunity according to the above-mentioned manner, thereby determining the first quantity of candidate PDSCH receiving opportunities, in which a second time domain resource allocation table R is used to determine the first quantity of candidate PDSCH receiving opportunities, and the second time domain resource allocation table R is determined according to the first time domain resource allocation table, for example, the second time domain resource allocation table includes all or some of the settings of the first time domain resource allocation table, which is described in detail below by taking an example.

[0084] For example, when the second time domain resource allocation table includes all the settings of the first time domain resource allocation table, one row of the second time domain resource allocation table corresponds to one row of the first time domain resource table (i.e., one first information element), and one row of the first time domain resource allocation table corresponds to a fourth quantity (D) of PDSCH time domain resources (e.g., includes a plurality of second information elements or includes the above-mentioned sixth or seventh quantity of information), the row of the second time domain resource allocation table also corresponds to the fourth quantity of PDSCH time domain resources.

[0085] In the case of "determining the candidate PDSCH receiving opportunity based on the time domain resource of one PDSCH among the fourth quantity of PDSCHs", One PDSCH time domain resource among the fourth quantity of PDSCH time domain resources is a fifth PDSCH time domain resource, and a candidate PDSCH receiving opportunity is determined according to the fifth PDSCH time domain resource, for example, determining whether the fifth PDSCH time domain resource includes a symbol that is semi-statically configured as an uplink, or includes a symbol that is configured as a PRACH, or includes a symbol that is configured as invalid, or cannot be used to schedule a PDSCH corresponding to the downlink slot, if yes, the row corresponding to the fifth PDSCH satisfies a first condition, if no, the row corresponding to the fifth PDSCH satisfies a second condition, for example, the last one PDSCH time domain resource among the fourth quantity of PDSCH time domain resources can be the fifth PDSCH time domain resource; "determining the candidate PDSCH receiving opportunity based on at least two PDSCH time domain resources of the fourth quantity of PDSCHs" At least two (P) PDSCH time domain resources among the fourth quantity of PDSCH time domain resources are set as P fifth PDSCH time domain resources, and a candidate PDSCH reception opportunity is determined according to the P fifth PDSCH time domain resources, for example, determining whether any one fifth PDSCH among the P fifth PDSCH time domain resources includes a symbol semi-statically set with uplink, includes a symbol with PRACH set, includes a symbol set as invalid, or cannot be used to schedule a PDSCH corresponding to the downlink slot (whether a PDSCH time-domain resource unable to be scheduled to which the downlink slot corresponds to satisfies the first condition or the second condition), and if yes, the row corresponding to the P fifth PDSCH satisfies the first condition, and if no, the row corresponding to the P fifth PDSCH satisfies the second condition. For example, all of the fourth quantity of PDSCH time domain resources may be set as the P fifth PDSCH time domain resources, but this embodiment is not limited thereto.

[0086] Alternatively, for example, at least two (P) PDSCH time-domain resources among the fourth quantity PDSCH time-domain resources are P fifth PDSCH time-domain resources, and determine candidate PDSCH receiving opportunities based on the P fifth PDSCH time-domain resources, for example, determine whether each fifth PDSCH time-domain resource among the P fifth PDSCH time-domain resources includes a symbol that is semi-statically configured as an uplink, or includes a symbol for which a PRACH is configured, or includes a symbol that is configured as invalid, or cannot be used to schedule a PDSCH corresponding to the downlink slot (whether a PDSCH time-domain resource unable to be scheduled to which the downlink slot corresponds to satisfies the first condition or the second condition), and if yes, the rows corresponding to the P fifth PDSCHs satisfy the first condition, and if no, the rows corresponding to the P fifth PDSCHs satisfy the second condition. For example, all of the fourth quantity of PDSCH time domain resources may be the P fifth PDSCH time domain resources, but this embodiment is not limited thereto.

[0087] For example, when the second time domain resource allocation table includes a portion of the settings of the first time domain resource allocation table, and one row of the second time domain resource allocation table corresponds to one row of the first time domain resource table (i.e., one first information element), and one row of the first time domain resource allocation table corresponds to a fourth quantity (D) of PDSCH time domain resources (e.g., includes a plurality of second information elements or includes the above-mentioned sixth or seventh quantity of information), the one row of the second time domain resource allocation table corresponds to one PDSCH time domain resource, and the one PDSCH time domain resource is one PDSCH time domain resource among the fourth quantity of PDSCH time domain resources, for example, the last one PDSCH time domain resource among the fourth quantity of PDSCH time domain resources.

[0088] In the case of "determining the candidate PDSCH receiving opportunity based on one PDSCH time domain resource of the fourth quantity of PDSCHs", Take the one PDSCH time-domain resource as a fifth PDSCH time-domain resource, and determine a candidate PDSCH receiving opportunity based on the one fifth PDSCH time-domain resource, for example, determine whether the fifth PDSCH time-domain resource includes a symbol that is semi-statically configured as an uplink, or includes a symbol for which a PRACH is configured, or includes a symbol that is configured as invalid, or cannot be used to schedule a PDSCH corresponding to the downlink slot (whether a PDSCH time-domain resource unable to be scheduled to which the downlink slot corresponds to satisfies the first condition or the second condition), and if yes, the row corresponding to the fifth PDSCH satisfies the first condition, and if no, the row corresponding to the fifth PDSCH satisfies the second condition.

[0089] For example, when the second time domain resource allocation table includes a portion of the settings of the first time domain resource allocation table, a row of the second time domain resource allocation table corresponds to a row of the first time domain resource table (i.e., one first information element), and a row of the first time domain resource allocation table corresponds to a fourth quantity (D) of PDSCH time domain resources (e.g., including a plurality of second information elements or including the sixth or seventh quantity of information described above), the row of the second time domain resource allocation table corresponds to at least two (P) fifth PDSCH time domain resources.

[0090] "determining the candidate PDSCH receiving opportunity based on at least two PDSCH time domain resources of the fourth quantity of PDSCHs" The at least two (P) fifth PDSCH time-domain resources are P PDSCH time-domain resources among the fourth quantity of PDSCH time-domain resources (P is less than D), and determine candidate PDSCH receiving opportunities based on the at least two fifth PDSCH time-domain resources, for example, whether a PDSCH time-domain resource unable to be scheduled to which the downlink slot corresponds to satisfies the first condition or the second condition. if yes, the rows corresponding to the P fifth PDSCHs satisfy a first condition; if no, the rows corresponding to the P fifth PDSCHs satisfy a second condition; or determine whether at least one of the at least two fifth PDSCHs includes a symbol that is semi-statically configured as uplink, or includes a symbol for which a PRACH is configured, or includes a symbol that is configured as invalid, or cannot be used to schedule a PDSCH corresponding to the downlink slot (whether a PDSCH time-domain resource unable to be scheduled to which the downlink slot corresponds to satisfies the first condition or the second condition); if yes, the rows corresponding to the P fifth PDSCHs satisfy the first condition; if no, the rows corresponding to the P fifth PDSCHs satisfy the second condition.

[0091] In some embodiments, when determining the first number of candidate PDSCH receiving opportunities, the timing of the BWP switch may be further taken into consideration. For example, when a downlink slot is before the BWP switch and the corresponding uplink slot (i.e., the uplink slot in which the UE transmits the above-mentioned first HARQ-ACK information) is after the BWP switch, the downlink slot does not have a corresponding candidate PDSCH receiving opportunity. In addition, the determination of the first number of candidate PDSCH receiving opportunities may further take into consideration other factors, such as the capabilities of the UE. For details, refer to the prior art, and a comprehensive description is omitted here.

[0092] The above embodiment describes how to determine the first number of candidate PDSCH receiving opportunities. In 502, determine HARQ-ACK information bits corresponding to the first number of candidate PDSCH receiving opportunities, and in some embodiments, the number of HARQ-ACK information bits corresponding to the candidate PDSCH receiving opportunities is related to a second number (B) corresponding to the candidate PDSCH receiving opportunities and / or a HARQ-ACK binding relationship between PDSCHs, in other words, the terminal device can determine the number of HARQ-ACK information bits corresponding to one candidate PDSCH receiving opportunity according to the second number and the binding relationship.

[0093] In some embodiments, the second quantity may be the quantity of a fourth PDSCH (candidate PDSCH) corresponding to the candidate PDSCH reception opportunity. In other words, the fourth PDSCH (also referred to as candidate PDSCH) in the embodiments of the present invention is used to determine the HARQ-ACK information bit corresponding to the candidate PDSCH reception opportunity, and for example refers to the number of PDSCHs that can be scheduled by one DCI, but does not correspond to the number of PDSCHs (second PDSCHs) actually scheduled by the DCI or the number of PDSCHs (first PDSCHs) actually indicated by the DCI. The number of HARQ-ACK information bits corresponding to one candidate PDSCH reception opportunity is related to the second quantity B corresponding to the candidate PDSCH reception opportunity, which means that the value of the second quantity may affect the value of the number of HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunity. For example, the number of HARQ-ACK information bits corresponding to one candidate PDSCH reception opportunity is

[0094]

number

[0095] For example, the second quantity is the maximum number of PDSCHs corresponding to each row in the second time domain resource allocation table or the first time domain resource allocation table. Wherein, when the first information element includes at least two second information elements, for example, when one row of the first time domain resource allocation table or the second time domain resource allocation table corresponds to at least two PDSCH time domain resources, the second quantity is the maximum number of PDSCH time domain resource quantities corresponding to each row, and when the first information element includes a sixth quantity or a seventh quantity of information, for example, when a sixth quantity (or a seventh quantity) of information is correspondingly set to one row of the first time domain resource allocation table or the second time domain resource allocation table, the second quantity is the maximum number of the sixth quantity (or the seventh quantity) corresponding to each row. Wherein, the number of HARQ-ACK information bits corresponding to each candidate PDSCH receiving opportunity is the same.

[0096] Alternatively, for example, the second quantity is the maximum number of PDSCH quantities corresponding to each row in the second time domain resource allocation table that satisfies the second condition. Wherein, when the first information element includes at least two second information elements, for example, when one row in the first time domain resource allocation table or the second time domain resource allocation table corresponds to at least two PDSCH time domain resources, the second quantity is the maximum number of PDSCH time domain resource quantities corresponding to each row that satisfies the second condition, and when the first information element includes information of the sixth quantity or the seventh quantity, for example, when information of the sixth quantity (or the seventh quantity) is set correspondingly to one row in the first time domain resource allocation table or the second time domain resource allocation table, the second quantity is the maximum number of the sixth quantity (or the seventh quantity) corresponding to each row that satisfies the second condition. Wherein, the number of HARQ-ACK information bits corresponding to each candidate PDSCH reception opportunity is the same or different. Note that the method of determining whether one row satisfies the second condition is as described above, and detailed description thereof will be omitted here.

[0097] Alternatively, for example, the second quantity is the maximum number of quantities of PDSCHs other than PDSCHs that include an uplink and a symbol that is semi-statically configured, or that include a symbol for which a PRACH is configured, or that include a symbol that is set as invalid, corresponding to each row in the second time domain resource allocation table that satisfies the second condition. Among them, when the first information element includes at least two second information elements, for example, when one row of the first time domain resource allocation table or the second time domain resource allocation table corresponds to at least two PDSCH time domain resources, the second quantity is the maximum number of time domain resource quantities other than PDSCH, including uplink and semi-statically set symbols, or including symbols with PRACH set, or including symbols set as invalid, corresponding to each row of the PDSCH that satisfies the second condition; when the first information element includes information of a sixth quantity or a seventh quantity, for example, when information of the sixth quantity (or the seventh quantity) is correspondingly set to one row of the first time domain resource allocation table or the second time domain resource allocation table, the second quantity is the maximum number of eighth quantities corresponding to each row of the PDSCH that satisfies the second condition, and the eighth quantity is obtained by subtracting the quantity of PDSCH including uplink and semi-statically set symbols, or including symbols with PRACH set, or including symbols set as invalid from the sixth quantity (or the seventh quantity). Wherein, the number of HARQ-ACK information bits corresponding to each candidate PDSCH receiving opportunity is the same or different. The implementation method of determining whether a row satisfies the second condition has been described above, and detailed description thereof will be omitted here.

[0098] In some embodiments, the number of HARQ-ACK information bits corresponding to one candidate PDSCH reception opportunity is related to a HARQ-ACK binding relationship between PDSCHs, when there is a HARQ-ACK binding relationship between at least two fourth PDSCHs among the fourth PDSCHs corresponding to the candidate PDSCH reception opportunity (candidate PDSCHs), the HARQ-ACK information bits of the at least two fourth PDSCHs having a binding relationship are jointly coded, and the joint coding may be a logical AND operation on the HARQ-ACK information bits corresponding to the PDSCHs having a HARQ-ACK binding relationship.

[0099] In the above embodiment, when the above binding relationship exists, joint coding is performed, so that the number of HARQ-ACK information bits corresponding to one candidate PDSCH receiving opportunity can be reduced.

[0100] In some embodiments, the method may further include (optionally; not shown), that is, the terminal device receives configuration information for setting a HARQ-ACK binding relationship between PDSCHs, and the configuration information harq-ACK-PDSCHBundlingPUCCH can be carried by RRC signaling. For example, when the configuration information sets that there is a HARQ-ACK binding relationship between multiple PDSCHs that one DCI can schedule (each fourth PDSCH corresponding to one candidate PDSCH receiving opportunity), the number of HARQ-ACK information bits corresponding to one candidate PDSCH receiving opportunity is the number of HARQ-ACK information bits corresponding to one PDSCH. (Outside 3) Equal to TIFF0007639903000008.tif20170.

[0101] For example, as shown in the table below, when there is a HARQ-ACK binding relationship between two fourth PDSCHs (i.e., PDSCH1 and PDSCH2) corresponding to one candidate PDSCH receiving opportunity, the HARQ-ACK information corresponding to the one candidate PDSCH receiving opportunity is information after joint encoding.

[0102] [Table 5] In some embodiments, the number of HARQ-ACK information bits corresponding to one PDSCH (outside 4) TIFF0007639903000010.tif18170 may be determined based on spatial binding parameters, code block group (CBG) setting parameters, and maximum supported codeword parameters, and may be, for example, 1 bit or 2 bits. For details, please refer to the prior art, and detailed description thereof will be omitted here.

[0103] In some embodiments, the second quantities corresponding to each of at least two candidate PDSCH receiving opportunities among the first quantity (A) of candidate PDSCH receiving opportunities are the same or different, although this embodiment is not limited in this respect.

[0104] In some embodiments, as described above, how to determine the number of HARQ-ACK information bits corresponding to one candidate PDSCH receiving opportunity is described. The method of determining the number of HARQ-ACK information bits corresponding to each candidate PDSCH receiving opportunity among the first number (A number) of candidate PDSCH receiving opportunities is the same (wherein the method of determining the second number may be different), so here, comprehensive description is omitted.

[0105] In the prior art, the HARQ-ACK information of one PDSCH corresponds to one candidate PDSCH receiving opportunity in the codebook, and thus the HARQ-ACK information corresponding to the candidate PDSCH receiving opportunity is the HARQ-ACK information of the one PDSCH; in the embodiment of the present invention, one candidate PDSCH receiving opportunity can correspond to multiple fourth PDSCHs, for example, the second HARQ-ACK information of at least one (N) second PDSCH can correspond to the same candidate PDSCH receiving opportunity, so after determining the number of HARQ-ACK information bits corresponding to one candidate PDSCH receiving opportunity, the HARQ-ACK information bit number corresponding to the candidate PDSCH receiving opportunity is further determined. It is necessary to determine how the HARQ-ACK information bits are arranged, and sequentially determine the HARQ-ACK information bits corresponding to each candidate PDSCH receiving opportunity among the first number (A) of candidate PDSCH receiving opportunities using the same manner, and arrange the HARQ-ACK information bits corresponding to each candidate PDSCH receiving opportunity among the first number (A) of candidate PDSCH receiving opportunities according to the time domain order corresponding to the candidate PDSCH receiving opportunities or according to the index of each candidate PDSCH receiving opportunity to obtain the HARQ-ACK information bits of one serving cell, and the HARQ-ACK information bits of one serving cell can be used as a codebook for feedback.

[0106] In some embodiments, the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunity may be arranged according to the order of the fourth PDSCH corresponding to the candidate PDSCH reception opportunity, in other words, arranged according to the time domain order or index of the fourth PDSCH corresponding to the candidate PDSCH reception opportunity, for example, from the least significant bit (LSB) of the HARQ-ACK information bit corresponding to the candidate PDSCH reception opportunity, sequentially arrange the HARQ-ACK information bits corresponding to each fourth PDSCH according to the order of the fourth PDSCH, and set the remaining HARQ information bits corresponding to the candidate PDSCH reception opportunity as NACK, among which, for the fourth PDSCH that does not have a corresponding second PDSCH (i.e., the candidate PDSCH that does not have a corresponding PDSCH that is actually scheduled), set its corresponding HARQ-ACK information bit as NACK. Figures 6A and 6B are diagrams showing the arrangement of information bits of the candidate PDSCH reception opportunity. As shown in FIG. 6A, there are candidate PDSCH receiving opportunities 0, 1, and 2, and the two fourth PDSCHs (i.e., the number of PDSCHs that one DCI can schedule) corresponding to each candidate PDSCH receiving opportunity are the same and are 2, among which, the two fourth PDSCHs of the candidate PDSCH receiving opportunity 0 all have corresponding second PDSCHs (i.e., PDSCH1 and PDSCH2), the two fourth PDSCHs of the candidate PDSCH receiving opportunity 1 do not have corresponding second PDSCHs, and the two PDSCHs of the candidate PDSCH receiving opportunity 2 have one corresponding first PDSCH (i.e., PDSCH3) and one corresponding second PDSCH (i.e., Assume that there is a fourth PDSCH, and the HARQ-ACK information corresponding to one fourth PDSCH is 1 bit, then the codebook is {PDSCH1-HARQ, PDSCH2-HARQ, NACK, NACK, NACK, PDSCH4-HARQ}, in which PDSCH1-HARQ represents the HARQ-ACK information (NACK or ACK) corresponding to PDSCH1, and the others can be inferred therefrom.As shown in FIG. 6B, there are candidate PDSCH receiving opportunities 0, 1, and 2, and the two fourth PDSCHs corresponding to each candidate PDSCH receiving opportunity (i.e., the number of PDSCHs that one DCI can schedule) are the same and are 2, among which, the two fourth PDSCHs of the candidate PDSCH receiving opportunity 0 all have corresponding second PDSCHs (i.e., PDSCH1 and PDSCH2), the two fourth PDSCHs of the candidate PDSCH receiving opportunity 1 do not have corresponding second PDSCHs, and the two PDSCHs of the candidate PDSCH receiving opportunity 2 have one corresponding second PDSCH (i.e., PDSCH3), and the HARQ-ACK information corresponding to one fourth PDSCH is 1 bit, then the codebook is {PDSCH1-HARQ, PDSCH2-HARQ, NACK, NACK, NACK, PDSCH3-HARQ}, among which, when the value of the 1 bit is 0, it represents NACK, and when the value of the 1 bit is 1, it represents ACK.

[0107] In some embodiments, the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunity may be sequentially arranged according to the order of the second PDSCH corresponding to the candidate PDSCH reception opportunity, in other words, arranged according to the time domain order or index of the second PDSCH corresponding to the candidate PDSCH reception opportunity, for example, from the least significant bit (LSB) of the HARQ-ACK information bit corresponding to the candidate PDSCH reception opportunity, the HARQ-ACK information bits corresponding to each second PDSCH are sequentially arranged according to the order of the second PDSCH, and the remaining HARQ information bits corresponding to the candidate PDSCH reception opportunity are set as NACK, for example: As shown in FIG. 6A, if the HARQ-ACK information corresponding to one fourth PDSCH is 1 bit, the codebook is {PDSCH1-HARQ, PDSCH2-HARQ, NACK, NACK, NACK, PDSCH4-HARQ}. As shown in FIG. 6B, if the HARQ-ACK information corresponding to one fourth PDSCH is 1 bit, the codebook is {PDSCH1-HARQ, PDSCH2-HARQ, NACK, NACK, PDSCH3-HARQ, NACK}. When the value of the 1 bit is 0, it represents NACK, and when the value of the 1 bit is 1, it represents ACK.

[0108] In some embodiments, the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities may be sequentially arranged according to the order of the first PDSCH corresponding to the candidate PDSCH reception opportunity, i.e., arranged according to the time domain order or index of the first PDSCH corresponding to the candidate PDSCH reception opportunity. For example, starting from the least significant bit (LSB) of the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunity, the HARQ-ACK information bits corresponding to each first PDSCH are sequentially arranged according to the order of the first PDSCH, and the remaining HARQ information bits corresponding to the candidate PDSCH reception opportunities are set as NACK, among which, for the first PDSCH that is not the second PDSCH, the corresponding HARQ-ACK information bits are set as NACK, for example, as shown in Figure 6A, the HARQ-ACK information corresponding to one fourth PDSCH is 1 bit , the codebook is {PDSCH1-HARQ, PDSCH2-HARQ, NACK, NACK, NACK, PDSCH4-HARQ}. As shown in FIG. 6B, if the HARQ-ACK information corresponding to one fourth PDSCH is 1 bit, the codebook is {PDSCH1-HARQ, PDSCH2-HARQ, NACK, NACK, PDSCH3-HARQ, NACK}, where when the value of the 1 bit is 0, it represents NACK, and when the value of the 1 bit is 1, it represents ACK.

[0109] In some embodiments, as described above, when the codebook includes the HARQ-ACK information bit of one serving cell, the HARQ-ACK information bit of the one serving cell is used as the codebook for feedback, and when the codebook includes the HARQ-ACK information bit of multiple serving cells, the determination method of the HARQ-ACK information bit of each serving cell is the same as the determination method of the HARQ-ACK information bit of the one serving cell described above, but when specifically determined, other parameters such as the first time domain resource allocation table and / or the second time domain resource allocation table, K1 set, etc. corresponding to each serving cell may be the same or different, for example, the above parameters may be set independently for each serving cell, but this embodiment is not limited thereto. The HARQ-ACK information bit corresponding to each serving cell is sequentially arranged according to the ascending order of the index of the serving cell, so that the codebook can be generated and feedback can be performed.

[0110] II. The second HARQ-ACK information of at least one (N) second PDSCH can correspond to different candidate PDSCH receiving opportunities (i.e., the second HARQ-ACK information of the N second PDSCHs is fed back with HARQ-ACK information bits corresponding to different candidate PDSCH receiving opportunities). In some embodiments, the same method as in I above is adopted to determine the downlink slot corresponding to each K1 in the K1 set, and determine whether each downlink slot has a corresponding candidate PDSCH receiving opportunity, for example, determine the candidate PDSCH receiving opportunity according to one of the above-mentioned fourth quantity of PDSCHs or at least two fifth PDSCHs. The specific implementation manner is as described above, and the detailed description thereof is omitted here.

[0111] The difference from I above is that, in order to support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI, instead of one candidate PDSCH receiving opportunity corresponding to one fourth PDSCH and multiple fourth PDSCHs, for each downlink slot having the above-mentioned corresponding candidate PDSCH receiving opportunity, the number of candidate PDSCH receiving opportunities corresponding to one downlink slot is a third quantity. At least two candidate PDSCH receiving opportunities among the third quantity of candidate PDSCH receiving opportunities corresponding to at least one downlink slot among the downlink slots having the corresponding candidate PDSCH receiving opportunity correspond to different slots (or may be said to be in different slots).

[0112] In some embodiments, the third quantity is greater than 1, and / or the third quantity is related to a HARQ-ACK binding relationship between a ninth quantity (I) corresponding to the downlink time unit and / or PDSCH, where the determination manner of the ninth quantity I can refer to the determination manner of the second quantity B, and the setting manner of the binding relationship is as described in I, and the detailed description thereof is omitted here. The third quantity is greater than 1 refers to that at least one downlink slot among the downlink slots having corresponding candidate PDSCH receiving opportunities corresponds to two or more candidate PDSCH receiving opportunities.

[0113] In some embodiments, the third quantity being related to the ninth quantity means that the third quantity is greater than or equal to the ninth quantity, for example, determining whether the third quantity is equal to or greater than the ninth quantity based on the capabilities of the UE, and when the UE does not support reception of more than one PDSCH in one downlink slot, the third quantity is equal to the ninth quantity, and when the UE supports reception of more than one PDSCH in one downlink slot, the third quantity is greater than the ninth quantity.

[0114] In some embodiments, the third quantity is related to a HARQ-ACK binding relationship between PDSCHs, and refers to the third quantity being reduced when there is a HARQ-ACK binding relationship between the fourth PDSCHs corresponding to the candidate PDSCH reception opportunity of a corresponding downlink slot, for example, the third quantity may be smaller than the ninth quantity. For example, when the UE does not support reception of two or more PDSCHs in one downlink slot and a binding relationship is set by RRC signaling, the third quantity is equal to 1, and when the UE does not support reception of two or more PDSCHs in one downlink slot and a binding relationship is not set by RRC signaling, the third quantity is equal to the number of rows with no overlap in the corresponding time domain resource (e.g., the time domain resource of the corresponding fifth PDSCH) in the second time domain resource allocation table.

[0115] In some embodiments, since one candidate PDSCH receiving opportunity corresponds to one PDSCH, the HARQ-ACK information bit corresponding to each candidate PDSCH receiving opportunity is arranged according to the order of the first number of candidate PDSCH receiving opportunities to obtain the HARQ-ACK information bit of one serving cell, where, if one candidate PDSCH receiving opportunity does not have a corresponding second PDSCH, the corresponding HARQ-ACK information bit is set as NACK. As mentioned above, when the codebook includes the HARQ-ACK information bit of one serving cell, the HARQ-ACK information bit of the one serving cell is used as the codebook for feedback, and when the codebook includes the HARQ-ACK information bit of multiple serving cells, the determination method of the HARQ-ACK information bit of each serving cell is the same as the determination method of the HARQ-ACK information bit of one serving cell described above, but when specifically determined, other parameters such as the first time domain resource allocation table and / or the second time domain resource allocation table, K1 set, etc. corresponding to each serving cell may be the same or different, for example, the above parameters may be set independently for each serving cell, but this embodiment is not limited thereto. The HARQ-ACK information bit corresponding to each serving cell is sequentially arranged according to the ascending order of the index of the serving cell, so that a codebook can be generated and feedback can be performed.

[0116] It should be noted that the above-mentioned Figures 2, 5, etc. are only for illustrative purposes of the embodiments of the present invention, and the present invention is not limited thereto. For example, the execution order between each operation can be appropriately adjusted, or some operations can be added or removed. In addition, those skilled in the art can make appropriate modifications based on the above contents without being limited to the description of the above-mentioned Figures 2, 5, etc.

[0117] Although the above-mentioned embodiments are illustrative of the embodiments of the present invention, the present invention is not limited thereto, and appropriate modifications can be made based on the above-mentioned embodiments. For example, each of the above-mentioned embodiments may be implemented alone, or a combination of two or more of the above-mentioned embodiments may be implemented.

[0118] As can be seen from the above embodiments, multiple PDSCHs can be scheduled by one DCI, and one new HARQ-ACK information feedback method can support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI, thereby reducing the DCI monitoring load of the terminal device and reducing power consumption and complexity.

[0119] <Example of the second aspect> In the embodiment of the present invention, an information receiving method is provided, and will be described from the network device side, and the description of the parts overlapping with the embodiment of the first aspect will be omitted here.

[0120] 7 is a diagram illustrating a method for receiving information according to an embodiment of the present invention. As shown in FIG. 7, the method includes the following steps:

[0121] 701: The network device transmits, to a terminal device, downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI including a first information field for indicating time domain resources of at least two (M) first PDSCHs; 702: The network device transmits at least one (N) second PDSCH to the terminal device; and 703: The network device receives first HARQ-ACK information transmitted by a terminal device, where the first HARQ-ACK information includes second HARQ-ACK information of the at least one (N) second PDSCH.

[0122] In some embodiments, the implementation manner of 701-703 corresponds to 201-203 in the embodiments of the first aspect, and therefore a detailed description thereof is omitted here.

[0123] In some embodiments, the meanings of the DCI format, the first PDSCH, and the second PDSCH may refer to the embodiments of the first aspect, and detailed descriptions thereof will be omitted here.

[0124] As can be seen from the above embodiments, multiple PDSCHs can be scheduled by one DCI, and one new HARQ-ACK information feedback method can support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI, thereby reducing the DCI monitoring load of the terminal device and reducing power consumption and complexity.

[0125] <Example of the third aspect> In an embodiment of the present invention, an information feedback device is provided, which may be, for example, a terminal device, or may be one or more components or assemblies disposed in the terminal device, and the description of the same contents as those in the embodiment of the first aspect will be omitted here.

[0126] 8 is a diagram illustrating an information feedback device according to an embodiment of the present invention. As shown in FIG 8, the information feedback device 800 includes:

[0127] A first receiving unit 801: used for receiving downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI being used for indicating time domain resource allocation information of at least two (M) first PDSCHs; A second receiving unit 802, used for receiving at least one (N) second PDSCH; and A first transmitting unit 803: used for transmitting first HARQ-ACK information, where the first HARQ-ACK information includes second HARQ-ACK information of the at least one (N) second PDSCH.

[0128] In some embodiments, the implementation manner of the first receiving unit 801, the second receiving unit 802, and the first sending unit 803 can refer to 201-203 in the embodiments of the first aspect, and detailed description thereof will be omitted here.

[0129] In some embodiments, the first HARQ-ACK information is a semi-static HARQ-ACK codebook, the codebook including HARQ-ACK information bits corresponding to a first number (A) of candidate PDSCH reception opportunities, the first number being a natural number.

[0130] In some embodiments, the first number (A) of candidate PDSCH receiving opportunities correspond to the same serving cell.

[0131] In some embodiments, the second HARQ-ACK information of the at least one (N) second PDSCH corresponds to the same candidate PDSCH receiving opportunity.

[0132] In some embodiments, the number of HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities is related to a second quantity (B) corresponding to the candidate PDSCH reception opportunities and / or a HARQ-ACK binding relationship between PDSCHs.

[0133] In some embodiments, the second quantities corresponding to each of at least two candidate PDSCH receiving opportunities of the first number (A) of candidate PDSCH receiving opportunities are the same or different.

[0134] In some embodiments, the second quantity is a quantity of fourth PDSCHs corresponding to the candidate PDSCH reception opportunities.

[0135] In some embodiments, the number of feedback information bits corresponding to each of at least two candidate PDSCH receiving opportunities of the first number (A) of candidate PDSCH receiving opportunities are the same or different.

[0136] In some embodiments, the second HARQ-ACK information of the at least one (N) second PDSCH corresponds to a different candidate PDSCH receiving opportunity.

[0137] In some embodiments, a third number (C) of candidate PDSCH reception opportunities of the first number (A) of candidate PDSCH reception opportunities correspond to a same downlink time unit, the third number being greater than one, and / or the third number being associated with a ninth number (I) corresponding to the downlink time unit and / or a HARQ-ACK binding relationship between PDSCHs.

[0138] In some embodiments, the apparatus further comprises:

[0139] A third receiving unit (optional; not shown): used for receiving configuration information for setting up a HARQ-ACK binding relationship between PDSCHs.

[0140] In some embodiments, the second quantity is a maximum number of quantities of PDSCHs corresponding to rows in the second time domain resource allocation table that are determined to satisfy the second condition; or The second quantity is the maximum number of quantities of PDSCHs other than PDSCHs including semi-statically configured uplink symbols corresponding to each row in the second time domain resource allocation table that is determined to satisfy the second condition, and the second time domain resource allocation table includes at least one row of PDSCH time domain resource configuration.

[0141] In some embodiments, the apparatus further comprises:

[0142] A first determination unit (optional; not shown): used to determine the candidate PDSCH receiving opportunity based on the time domain resource of one PDSCH among the fourth quantity (D) PDSCHs corresponding to a row in the first time domain resource allocation table.

[0143] For example, the one PDSCH is the last one of the fourth quantity (D) PDSCHs.

[0144] In some embodiments, the apparatus further comprises:

[0145] A second determination unit (optional; not shown): used to determine the candidate PDSCH receiving opportunity based on the time domain resources of at least two (P) PDSCHs among the fourth quantity (D) PDSCHs corresponding to a row in the first time domain resource allocation table.

[0146] For example, P is equal to the fourth quantity.

[0147] In some embodiments, the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunity are sequentially arranged according to the order of the fourth PDSCH corresponding to the candidate PDSCH reception opportunity, or the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunity are sequentially arranged according to the order of the second PDSCH corresponding to the candidate PDSCH reception opportunity, or the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunity are sequentially arranged according to the order of the first PDSCH corresponding to the candidate PDSCH reception opportunity.

[0148] In some embodiments, the first transmitting unit 803 transmits the first HARQ-ACK information in a slot with index n+k (slot n+k), where the slot with index n (slot n) is the end slot of the at least two (M) first PDSCHs or the end slot of the last one of the at least two (M) first PDSCHs.

[0149] Regarding the method of generating the above-mentioned codebook, reference can be made to the embodiment of the first aspect, and therefore a detailed description thereof will be omitted here.

[0150] The above-mentioned embodiments are merely for illustrative purposes, and the present invention is not limited thereto, and appropriate modifications may be made based on the above-mentioned embodiments. For example, each of the above-mentioned embodiments may be implemented alone, or a combination of two or more of the above-mentioned embodiments may be implemented.

[0151] Although the components or modules according to the present invention have been described above, the present invention is not limited thereto. The information feedback device 800 may further include other components or modules, and the specific contents of these components or modules can be found in the related art.

[0152] For convenience, only the connection relationship or signal direction between each component or module is shown in Fig. 8, but various related technologies such as bus connection may be used as understood by those skilled in the art. Each of the above-mentioned components or modules may be realized by hardware such as a processor, a memory, a transmitter, a receiver, etc., but the implementation of the present invention is not limited thereto.

[0153] As can be seen from the above embodiments, multiple PDSCHs can be scheduled by one DCI, and one new HARQ-ACK information feedback method can support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI, thereby reducing the DCI monitoring load of the terminal device and reducing power consumption and complexity.

[0154] <Example of the fourth aspect> In an embodiment of the present invention, an information receiving device is provided, which may be, for example, a network device, or one or more components or assemblies disposed in the network device, and the description of the same contents as those in the embodiment of the second aspect will be omitted here.

[0155] 9 is a diagram illustrating an information receiving device according to an embodiment of the present invention. As shown in FIG. 9, the information receiving device 900 includes:

[0156] A second transmitting unit 901: used for transmitting downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) to a terminal device, the DCI being used for indicating time domain resource allocation information of at least two (M) first PDSCHs; A third transmitting unit 902, used for transmitting at least one (N) second PDSCH to a terminal device; and A fourth receiving unit 903: used for receiving first HARQ-ACK information of a terminal device transmission, where the first HARQ-ACK information includes second HARQ-ACK information of the at least one (N) second PDSCH.

[0157] In some embodiments, the implementation manner of the second transmitting unit 901, the third transmitting unit 902, and the fourth receiving unit 903 can refer to 701-703 in the embodiments of the second aspect, and detailed description thereof will be omitted here.

[0158] The above-mentioned embodiments are merely for illustrative purposes, and the present invention is not limited thereto, and appropriate modifications may be made based on the above-mentioned embodiments. For example, each of the above-mentioned embodiments may be implemented alone, or a combination of two or more of the above-mentioned embodiments may be implemented.

[0159] Although each component or module according to the present invention has been described above, the present invention is not limited thereto. The information receiving device 900 may further include other components or modules, and the specific contents of these components or modules can be found in the related art.

[0160] 9 shows only the connection relationship or signal direction between each component or module for convenience, but various related technologies such as bus connection may be used as understood by those skilled in the art. Each of the above-mentioned components or modules may be realized by hardware such as a processor, a memory, a transmitter, a receiver, etc., but the implementation of the present invention is not limited thereto.

[0161] As can be seen from the above embodiments, multiple PDSCHs can be scheduled by one DCI, and one new HARQ-ACK information feedback method can support feedback of HARQ-ACK information of multiple PDSCHs scheduled by one DCI, thereby reducing the DCI monitoring load of the terminal device and reducing power consumption and complexity.

[0162] <Example of the fifth aspect> An embodiment of the present invention further provides a communication system, which can be seen from FIG. 1, and the description of the same contents as those of the embodiments of the first to fourth aspects will be omitted here.

[0163] In some embodiments, the communication system 100 includes at least an end device 102 and a network device 101 .

[0164] In some embodiments, the terminal device 102 receives downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) transmitted by the network device 101, the DCI is used to indicate time domain resource allocation information of at least two (M) first PDSCHs, the terminal device 102 receives at least one (N) second PDSCH transmitted by the network device 101, and the terminal device 102 transmits first HARQ-ACK information to the network device 101, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0165] In an embodiment of the present invention, a network device is further provided, which may be, for example, a base station, but the present invention is not limited thereto and may be other network devices.

[0166] Fig. 10 is a diagram showing the configuration of a network device according to an embodiment of the present invention. As shown in Fig. 10, the network device 1000 may include a processor 1010 (e.g., a central processing unit CPU) and a memory 1020, and the memory 1020 is connected to the processor 1010. The memory 1020 may include various data and may also include a program 1030 for information processing, and may execute the program 1030 under the control of the processor 1010.

[0167] For example, the processor 1010 is configured to execute a program to realize the information receiving method described in the embodiment of the second aspect. For example, the processor 1010 may be configured to perform the following control: transmit downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) to a terminal device, the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; transmit at least one (N) second PDSCH to the terminal device; and receive first HARQ-ACK information transmitted by the terminal device, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0168] As shown in Fig. 10, the network device 1000 further includes a transmitter / receiver (transmitter / receiver) 1040, an antenna 1050, etc., among which the functions of these components are similar to those of the prior art, and therefore detailed description thereof will be omitted here. Note that the network device 1000 does not need to include all the components shown in Fig. 10. The network device 1000 may further include components not shown in Fig. 10, and in this regard, reference can be made to the related art.

[0169] Although a terminal device is further provided in the embodiment of the present invention, the present invention is not limited thereto and may include other devices.

[0170] Fig. 11 is a diagram illustrating a terminal device according to an embodiment of the present invention. As shown in Fig. 11, the terminal device 1100 may include a processor 1110 and a memory 1120. The memory 1120 stores data and programs, and is connected to the processor 1110. It should be noted that this diagram is merely an example, and other types of structures may be used to supplement or replace the structures to achieve telecommunication functions or other functions.

[0171] For example, the processor 1110 may be configured to execute a program to realize the information feedback method described in the embodiment of the first aspect. For example, the processor 1110 may be configured to perform the following controls: receive downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), where the DCI is used to indicate time domain resource allocation information of at least two (M) first PDSCHs; receive at least one (N) second PDSCHs; and transmit first HARQ-ACK information, where the first HARQ-ACK information includes second HARQ-ACK information of the at least one (N) second PDSCHs.

[0172] As shown in Fig. 11, the terminal device 1100 further includes a communication module 1130, an input unit 1140, a display 1150, a power supply 1160, etc. Among them, the functions of these components are similar to those of the conventional technology, so detailed description thereof will be omitted here. It is not necessary for the terminal device 1100 to include all the components shown in Fig. 11. In addition, the terminal device 1100 may further include components not shown in Fig. 11, and in this regard, reference can be made to the related art.

[0173] An embodiment of the present invention further provides a computer program, which, when executed on a terminal device, causes the terminal device to perform the information feedback method described in the embodiment of the first aspect.

[0174] An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes a terminal device to perform the information feedback method according to the embodiment of the first aspect.

[0175] An embodiment of the present invention further provides a computer program, which, when executed in a network device, causes the network device to perform the information receiving method described in the embodiment of the second aspect.

[0176] An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes a network device to perform the information receiving method according to the embodiment of the second aspect.

[0177] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and any modifications to the present invention fall within the technical scope of the present invention as long as they do not depart from the spirit of the present invention.

[0178] Furthermore, with respect to the above-mentioned embodiments, the following supplementary notes are disclosed.

[0179] (Appendix 1) An information feedback method, applied to a terminal device, comprising: The terminal device receives downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; The terminal device receives at least one (N) second PDSCH; and A method comprising: the terminal device transmitting first HARQ-ACK information, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0180] (Appendix 2) 2. The method according to claim 1, comprising: The method of claim 1, wherein the first HARQ-ACK information is a semi-static HARQ-ACK codebook, the codebook including HARQ-ACK information bits corresponding to a first number (A) of candidate PDSCH reception opportunities, the first number being a natural number.

[0181] (Appendix 3) 3. The method according to claim 2, comprising: The method, wherein the first number (A) of candidate PDSCH receiving opportunities correspond to a same serving cell.

[0182] (Appendix 4) 3. The method according to claim 2, comprising: The second HARQ-ACK information of the at least one (N) second PDSCH corresponds to the same candidate PDSCH receiving opportunity.

[0183] (Appendix 5) 5. The method according to claim 2, 3 or 4, The number of HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities is related to a second quantity (B) corresponding to the candidate PDSCH reception opportunities and / or a HARQ-ACK binding relationship between PDSCHs.

[0184] (Appendix 6) 6. The method according to claim 5, A method, wherein a second quantity corresponding to each of at least two candidate PDSCH receiving opportunities among the first quantity (A) of candidate PDSCH receiving opportunities is the same or different.

[0185] (Appendix 7) 3. The method according to claim 2, comprising: A method, wherein a number of feedback information bits corresponding to each of at least two candidate PDSCH receiving opportunities among the first number (A) of candidate PDSCH receiving opportunities is the same or different.

[0186] (Appendix 8) 8. The method according to any one of claims 5 to 7, comprising: When there is a HARQ-ACK binding relationship between at least two fourth PDSCHs among the fourth PDSCHs corresponding to the candidate PDSCH reception opportunities, the method further includes performing joint coding on HARQ-ACK information bits of the at least two fourth PDSCHs having a binding relationship.

[0187] (Appendix 9) 6. The method according to claim 5, The second quantity is a quantity of a fourth PDSCH corresponding to the candidate PDSCH reception opportunities.

[0188] (Appendix 10) 3. The method according to claim 2, comprising: The second HARQ-ACK information of the at least one (N) second PDSCH corresponds to a different candidate PDSCH receiving opportunity.

[0189] (Appendix 11) The method according to claim 2 or 10, a third number (C) of candidate PDSCH reception opportunities among the first number (A) of candidate PDSCH reception opportunities correspond to a same downlink time unit, the third number being greater than one, and / or the third number being related to a ninth number (I) corresponding to the downlink time unit and / or a HARQ-ACK binding relationship between PDSCHs.

[0190] (Appendix 12) 12. The method according to claim 11, The method of claim 1, wherein the third quantity is smaller than the ninth quantity when a fourth PDSCH corresponding to a candidate PDSCH receiving opportunity corresponding to the downlink time unit has a HARQ-ACK binding relationship.

[0191] (Appendix 13) 12. The method according to claim 11, The method of claim 1, wherein the third quantity is greater than or equal to the ninth quantity when a fourth PDSCH corresponding to a candidate PDSCH receiving opportunity corresponding to the downlink time unit does not have a HARQ-ACK binding relationship.

[0192] (Appendix 14) 14. The method according to claim 13, comprising: the third quantity is equal to one or equal to the quantity of non-overlapping rows with corresponding time domain resources in a second time domain resource allocation table, the second time domain resource allocation table or the first time domain resource allocation table including at least one row of PDSCH time domain resource configuration.

[0193] (Appendix 15) The method according to claim 5 or 11, further comprising: The terminal device receives configuration information for setting up a HARQ-ACK binding relationship between PDSCHs.

[0194] (Appendix 16) The method according to claim 5 or 10, the second quantity or the ninth quantity is a maximum number among quantities of PDSCHs corresponding to each row in a second time domain resource allocation table or a first time domain resource allocation table, and the second time domain resource allocation table or the first time domain resource allocation table includes at least one row of PDSCH time domain resource configuration.

[0195] (Appendix 17) The method according to claim 5 or 10, the second quantity or the ninth quantity is a maximum number among quantities of PDSCHs corresponding to rows in a second time domain resource allocation table that are determined to satisfy a second condition; or the second quantity or the ninth quantity is a maximum number of quantities of PDSCHs other than a PDSCH including semi-statically configured uplink symbols corresponding to each row in a second time domain resource allocation table that is determined to satisfy a second condition, and the second time domain resource allocation table includes at least one row of PDSCH time domain resource configuration.

[0196] (Appendix 18) 3. The method according to claim 2, comprising: The terminal device determines the candidate PDSCH receiving opportunity based on a time domain resource of one PDSCH among a fourth quantity (D) of PDSCHs corresponding to a row in a first time domain resource allocation table.

[0197] (Appendix 19) 19. The method according to claim 18, comprising: The method, wherein the one PDSCH is a last one of the fourth quantity (D) PDSCHs.

[0198] (Appendix 20) 19. The method according to claim 18, comprising: A method in which the fourth quantity (D) is greater than one.

[0199] (Appendix 21) 19. The method of claim 18, further comprising: The terminal device determines a second time domain resource allocation table based on the first time domain resource allocation table; A method according to claim 1, wherein one row in the second time domain resource allocation table only includes the configuration of one PDSCH time domain resource.

[0200] (Appendix 22) 22. The method according to claim 21, The method, wherein the one row in the second time domain resource allocation table corresponds to the one row in the first time domain resource table.

[0201] (Appendix 23) 3. The method according to claim 2, comprising: The terminal device determines the candidate PDSCH receiving opportunity based on time domain resources of at least two (P) PDSCHs among a fourth quantity (D) PDSCHs corresponding to a row in a first time domain resource allocation table.

[0202] (Appendix 24) 24. The method according to claim 23, comprising: P is equal to the fourth quantity, method.

[0203] (Appendix 25) 24. The method according to claim 23, comprising: The method, wherein the fourth quantity (D) is greater than one.

[0204] (Appendix 26) 24. The method of claim 23, further comprising: The terminal device determines a second time domain resource allocation table based on the first time domain resource allocation table; A method according to claim 1, wherein a row in the second time domain resource allocation table includes a configuration of the fourth number (D) of PDSCH time domain resources.

[0205] (Appendix 27) 27. The method according to claim 26, comprising: The method, wherein the one row in the second time domain resource allocation table corresponds to the one row in the first time domain resource table.

[0206] (Appendix 28) 28. The method according to any one of claims 2 to 27, comprising: the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are sequentially arranged according to an order of a fourth PDSCH corresponding to the candidate PDSCH reception opportunity; or the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are sequentially arranged according to an order of a second PDSCH corresponding to the candidate PDSCH reception opportunity; or the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are sequentially arranged according to an order of a first PDSCH corresponding to the candidate PDSCH reception opportunity.

[0207] (Appendix 29) 29. The method according to any one of claims 1 to 28, comprising: The first HARQ-ACK information is carried by a PUCCH or a PUSCH.

[0208] (Appendix 30) 30. The method according to any one of claims 1 to 29, comprising: A method according to claim 1, wherein the second HARQ-ACK information of the at least one (N) second PDSCH is carried by the same PUCCH or PUSCH.

[0209] (Appendix 31) 31. The method of any one of claims 1 to 30, comprising: The method, wherein the terminal device transmits the first HARQ-ACK information in a slot with index n+k (slot n+k), in which the slot with index n (slot n) is the end slot of the at least two (M) first PDSCHs or the end slot of the last one of the at least two (M) first PDSCHs.

[0210] (Appendix 32) An information receiving method, applied to a network device, comprising: The network device transmits, to the terminal device, downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; The network device transmits at least one (N) second PDSCH to the terminal device; and A method in which the network device receives first HARQ-ACK information of a terminal device transmission, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0211] (Appendix 33) An information feedback device, which is applied to a terminal device, a first receiving unit for receiving downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; a second receiving unit for receiving at least one (N) second PDSCH; and An apparatus comprising: a first transmitting unit for transmitting first HARQ-ACK information, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0212] (Appendix 34) 34. The apparatus of claim 33, further comprising: The apparatus, wherein the first HARQ-ACK information is a semi-static HARQ-ACK codebook, the codebook including HARQ-ACK information bits corresponding to a first number (A) of candidate PDSCH reception opportunities, the first number being a natural number.

[0213] (Appendix 35) 35. The apparatus of claim 34, further comprising: The first number (A) of candidate PDSCH receiving opportunities correspond to a same serving cell.

[0214] (Appendix 36) 35. The apparatus of claim 34, further comprising: The second HARQ-ACK information of the at least one (N) second PDSCH corresponds to the same candidate PDSCH receiving opportunity.

[0215] (Appendix 37) 37. The apparatus of claim 34, 35 or 36, The number of HARQ-ACK information bits corresponding to the candidate PDSCH receiving opportunities is related to a second quantity (B) corresponding to the candidate PDSCH receiving opportunities and / or a HARQ-ACK binding relationship between PDSCHs.

[0216] (Appendix 38) 38. The apparatus of claim 37, further comprising: The apparatus, wherein a second quantity corresponding to each of at least two candidate PDSCH receiving opportunities among the first quantity (A) of candidate PDSCH receiving opportunities is the same or different.

[0217] (Appendix 39) 35. The apparatus of claim 34, further comprising: The apparatus, wherein a number of feedback information bits corresponding to each of at least two candidate PDSCH receiving opportunities among the first number (A) of candidate PDSCH receiving opportunities is the same or different.

[0218] (Appendix 40) 40. The apparatus of any one of claims 37 to 39, comprising: When there is a HARQ-ACK binding relationship between at least two fourth PDSCHs among the fourth PDSCHs corresponding to the candidate PDSCH reception opportunities, the device further performs joint coding on HARQ-ACK information bits of the at least two fourth PDSCHs having a binding relationship.

[0219] (Appendix 41) 38. The apparatus of claim 37, further comprising: The second quantity is a quantity of a fourth PDSCH corresponding to the candidate PDSCH reception opportunities.

[0220] (Appendix 42) 35. The apparatus of claim 34, further comprising: The second HARQ-ACK information of the at least one (N) second PDSCH corresponds to a different candidate PDSCH receiving opportunity.

[0221] (Appendix 43) 43. The apparatus of claim 34 or 42, an apparatus for receiving PDSCHs from a plurality of PDSCH receiving opportunities, the plurality of PDSCH receiving opportunities being associated with ...

[0222] (Appendix 44) 44. The apparatus of claim 43, further comprising: When a fourth PDSCH corresponding to a candidate PDSCH reception opportunity corresponding to the downlink time unit has a HARQ-ACK binding relationship, the third quantity is less than the ninth quantity.

[0223] (Appendix 45) 44. The apparatus of claim 43, further comprising: When a fourth PDSCH corresponding to a candidate PDSCH receiving opportunity corresponding to the downlink time unit does not have a HARQ-ACK binding relationship, the third number is greater than or equal to the ninth number.

[0224] (Appendix 46) 46. ​​The apparatus of claim 45, the third quantity is equal to one or equal to the quantity of non-overlapping rows of corresponding time domain resources in a second time domain resource allocation table, the second time domain resource allocation table or the first time domain resource allocation table including at least one row of PDSCH time domain resource configuration.

[0225] (Appendix 47) 44. The apparatus of claim 37 or 43, further comprising: The apparatus includes a third receiving unit for receiving configuration information for setting a HARQ-ACK binding relationship between PDSCHs.

[0226] (Appendix 48) 43. The apparatus of claim 37 or 42, the second quantity or the ninth quantity is a maximum number of PDSCH quantities corresponding to each row in a second time domain resource allocation table or a first time domain resource allocation table, and the second time domain resource allocation table or the first time domain resource allocation table includes at least one row of PDSCH time domain resource configuration.

[0227] (Appendix 49) 43. The apparatus of claim 37 or 42, the second quantity or the ninth quantity is a maximum number among quantities of PDSCHs corresponding to rows in a second time domain resource allocation table that are determined to satisfy a second condition; or the second quantity or the ninth quantity is a maximum number of quantities of PDSCHs other than a PDSCH including semi-statically configured uplink symbols corresponding to each row in a second time domain resource allocation table that is determined to satisfy a second condition, and the second time domain resource allocation table includes at least one row of PDSCH time domain resource configuration.

[0228] (Appendix 50) 35. The apparatus of claim 34, further comprising: The apparatus includes a first determining unit for determining the candidate PDSCH receiving opportunity based on a time domain resource of one PDSCH among a fourth quantity (D) of PDSCHs corresponding to a row in a first time domain resource allocation table.

[0229] (Appendix 51) 51. The apparatus of claim 50, further comprising: The apparatus, wherein the one PDSCH is a last one PDSCH among the fourth quantity (D) of PDSCHs.

[0230] (Appendix 52) 51. The apparatus of claim 50, further comprising: The fourth quantity (D) is greater than one, the device.

[0231] (Appendix 53) 51. The apparatus of claim 50, further comprising: a third determining unit for determining a second time-domain resource allocation table according to the first time-domain resource allocation table; A row in the second time domain resource allocation table includes only one PDSCH time domain resource configuration.

[0232] (Appendix 54) 54. The apparatus of claim 53, further comprising: The apparatus, wherein the one row in the second time domain resource allocation table corresponds to the one row in the first time domain resource table.

[0233] (Appendix 55) 35. The apparatus of claim 34, further comprising: The apparatus includes a second determining unit for determining the candidate PDSCH receiving opportunity based on time domain resources of at least two (P) PDSCHs in a fourth quantity (D) PDSCHs corresponding to a row in a first time domain resource allocation table.

[0234] (Appendix 56) 56. The apparatus of claim 55, further comprising: P is equal to the fourth quantity, apparatus.

[0235] (Appendix 57) 56. The apparatus of claim 55, further comprising: The apparatus, wherein the fourth quantity (D) is greater than one.

[0236] (Appendix 58) 56. The apparatus of claim 55, further comprising: a fourth determining unit for determining a second time domain resource allocation table according to the first time domain resource allocation table; A row in the second time domain resource allocation table includes a configuration of the fourth number (D) of PDSCH time domain resources.

[0237] (Appendix 59) 59. The apparatus of claim 58, further comprising: The apparatus, wherein the one row in the second time domain resource allocation table corresponds to the one row in the first time domain resource table.

[0238] (Appendix 60) 59. The apparatus of any one of claims 34 to 59, comprising: the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are sequentially arranged according to the order of a fourth PDSCH corresponding to the candidate PDSCH reception opportunities; or the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are sequentially arranged according to the order of a second PDSCH corresponding to the candidate PDSCH reception opportunities; or the HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are sequentially arranged according to the order of a first PDSCH corresponding to the candidate PDSCH reception opportunities.

[0239] (Appendix 61) 61. The apparatus of any one of claims 33 to 60, comprising: The first HARQ-ACK information is carried by a PUCCH or a PUSCH.

[0240] (Appendix 62) 62. The apparatus of any one of claims 33 to 61, comprising: An apparatus, wherein the second HARQ-ACK information of the at least one (N) second PDSCH is carried by the same PUCCH or PUSCH.

[0241] (Appendix 63) 63. The apparatus of any one of claims 33 to 62, comprising: The first transmitting unit transmits the first HARQ-ACK information in a slot with index n+k (slot n+k), in which the slot with index n (slot n) is an end slot of the at least two (M) first PDSCHs or an end slot of a last one of the at least two (M) first PDSCHs.

[0242] (Appendix 64) An information receiving device, which is applied to a network device, a second transmission unit for transmitting downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) to a terminal device, the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; a third transmitting unit for transmitting at least one (N) second PDSCH to the terminal device; and An apparatus comprising: a fourth receiving unit for receiving first HARQ-ACK information transmitted by a terminal device, the first HARQ-ACK information including second HARQ-ACK information of the at least one (N) second PDSCH.

[0243] (Appendix 65) A communication system including at least a terminal device and a network device, The terminal device receives downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) transmitted by the network device, the DCI being used to indicate time domain resource allocation information of at least two (M) first PDSCHs; The terminal device receives at least one (N) second PDSCH transmitted by the network device; A communication system, wherein the terminal device transmits first HARQ-ACK information to the network device, and the first HARQ-ACK information includes second HARQ-ACK information of the at least one (N) second PDSCH.

Claims

1. An apparatus for feeding back information, which is applied to a terminal device, comprising: A receiver and a transmitter are included. The receiver includes: receiving downlink control information (DCI) for scheduling a plurality of physical downlink shared channels (PDSCHs), the DCI including a first information field, the first information field indicating a row in a first time domain resource allocation table, the indicated row in the first time domain resource allocation table corresponding to at least two second information elements, each second information element including a separate SLIV, mapping type and slot offset corresponding to a time domain resource of a scheduled PDSCH of the scheduled plurality of PDSCHs, a quantity of the scheduled plurality of PDSCHs being equal to a quantity of SLIVs in the indicated row; and Among the multiple scheduled PDSCHs, a PDSCH that does not overlap with a UL symbol set by a higher layer parameter is received, and a PDSCH that overlaps with a UL symbol set by the higher layer parameter is not received, and different PDSCHs carry different TBs; The transmitter transmits a HARQ-ACK codebook including HARQ-ACK information of a PDSCH that does not overlap with a UL symbol set by the higher layer parameter.

2. 2. The apparatus of claim 1, The HARQ-ACK codebook is a semi-static HARQ-ACK codebook, the HARQ-ACK codebook including HARQ-ACK information bits corresponding to a first number of candidate PDSCH reception opportunities, the first number being a natural number.

3. 3. The apparatus of claim 2, The first number of candidate PDSCH receiving opportunities correspond to a same serving cell.

4. 3. The apparatus of claim 2, The HARQ-ACK information of the PDSCH that does not overlap with the UL symbol set by the higher layer parameter corresponds to the same candidate PDSCH reception opportunity.

5. 3. The apparatus of claim 2, The number of HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities is related to a HARQ-ACK binding relationship between PDSCHs.

6. 3. The apparatus of claim 2, The HARQ-ACK information of the PDSCH that does not overlap with the UL symbol set by the higher layer parameter corresponds to a different candidate PDSCH reception opportunity.

7. 3. The apparatus of claim 2, A third number of the candidate PDSCH receiving opportunities among the first number of candidate PDSCH receiving opportunities correspond to a same downlink timing unit, the third number being greater than one.

8. 2. The apparatus of claim 1, The receiver receives configuration information for configuring a HARQ-ACK binding relationship between PDSCHs.

9. 3. The apparatus of claim 2, The apparatus further comprises a controller for determining the candidate PDSCH receiving opportunity based on one SLIV of a plurality of SLIVs corresponding to the one row in the first time domain resource allocation table.

10. 10. The apparatus of claim 9, The apparatus, wherein the one SLIV is a last SLIV among a plurality of SLIVs corresponding to the one row.

11. 3. The apparatus of claim 2, The apparatus further comprises a controller for determining the candidate PDSCH receiving opportunity based on at least two SLIVs of a plurality of SLIVs corresponding to the row in the first time domain resource allocation table.

12. 12. The apparatus of claim 11, The controller determines the candidate PDSCH receiving opportunity based on all SLIVs corresponding to the one row in the first time domain resource allocation table.

13. 2. The apparatus of claim 1, The value of the first information field corresponds to an index of the one row in the first time domain resource allocation table.

14. 3. The apparatus of claim 2, HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are arranged according to an order of PDSCHs corresponding to the candidate PDSCH reception opportunities, and the PDSCHs corresponding to the candidate PDSCH reception opportunities can be scheduled by one DCI; The HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are arranged according to an order of the PDSCHs corresponding to the candidate PDSCH reception opportunities, and the PDSCHs corresponding to the candidate PDSCH reception opportunities do not overlap with UL symbols configured by the higher layer parameters; or The HARQ-ACK information bits corresponding to the candidate PDSCH reception opportunities are arranged according to an order of the multiple PDSCHs to be scheduled corresponding to the candidate PDSCH reception opportunities.

15. 2. The apparatus of claim 1, The transmitter transmits the HARQ-ACK codebook in a slot (slot n+k) with index (index n+k); The apparatus, wherein a slot with index n (slot n) is an ending slot of the multiple PDSCHs to be scheduled.

16. An information receiving device for use in a network device, comprising: A transmitter and a receiver are included. The transmitter includes: Transmitting downlink control information (DCI) for scheduling a plurality of physical downlink shared channels (PDSCHs) to a terminal device, the DCI including a first information field, the first information field indicating a row in a first time domain resource allocation table, the indicated row in the first time domain resource allocation table corresponding to at least two second information elements, each second information element including a separate SLIV, mapping type and slot offset corresponding to a time domain resource of one PDSCH to be scheduled among the scheduled PDSCHs, and a quantity of the scheduled PDSCHs is equal to a quantity of SLIVs in the indicated row; and Among the multiple PDSCHs to be scheduled, a PDSCH that does not overlap with a UL symbol set by a higher layer parameter is transmitted to the terminal device, and a PDSCH that overlaps with a UL symbol set by the higher layer parameter is not transmitted, and different PDSCHs carry different TBs; The receiver receives a HARQ-ACK codebook including HARQ-ACK information of a PDSCH that does not overlap with a UL symbol set by the higher layer parameter, transmitted by the terminal device.

17. A communication system including at least a terminal device and a network device, The terminal device receiving downlink control information (DCI) for scheduling a plurality of physical downlink shared channels (PDSCHs) transmitted by the network device, the DCI including a first information field, the first information field indicating a row in a first time domain resource allocation table, the indicated row in the first time domain resource allocation table corresponding to at least two second information elements, each second information element including a separate SLIV, mapping type and slot offset corresponding to a time domain resource of a scheduled one of the scheduled PDSCHs, and a quantity of the scheduled PDSCHs is equal to a quantity of SLIVs in the indicated row; Among the multiple scheduled PDSCHs transmitted by the network device, a PDSCH that does not overlap with a UL symbol set by a higher layer parameter is received, and a PDSCH that does not overlap with a UL symbol set by the higher layer parameter is not received, and different PDSCHs carry different TBs; and The communication system transmits to the network device a HARQ-ACK codebook including HARQ-ACK information of a PDSCH that does not overlap with a UL symbol set by the higher layer parameter.

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